Patent Grant
10821324
This application claims benefit of Ser. No. 102018000003278, filed 5 Mar. 2018 in Italy and which application is incorporated herein by reference. To the extent appropriate, a claim of priority is made to the above disclosed application.
The present invention relates to the fitness sector and, in particular, to an adaptive control method of a treadmill and to a treadmill implementing such method.
As known, treadmills are provided with the possibility of varying the speed of rotation of the motor of the treadmill, whereby varying the feeding speed of the belt (training speed) accordingly.
There are treadmills in which the rotation speed of the motor of the treadmill is varied manually by the user by appropriate controls with which a treadmill control unit is provided.
The obvious limits of a manual type control, e.g. due to possible errors by the user, have been overcome by more technologically evolved treadmills, in which the rotation speed of the motor of the treadmill is varied automatically by the treadmill itself, without needing any manual intervention by the user.
In particular, in this second case, the treadmill is provided, for example, with a distance sensor which is configured to detect and communicate the user's position with respect to such distance sensor to a control unit of the treadmill. The control unit is, in turn, configured to compare the position detected by the distance sensor with a reference position and consequently to vary the rotation speed of the treadmill motor as a function of the outcome of such comparison.
Such control method of the treadmill, albeit automatic, is not free from faults.
Indeed, if the user wishes to increase or decrease the training speed, the control unit cannot ensure the actual reaching of the rotation speed of the motor of the treadmill desired by the user on the basis of the user's position with respect to the distance sensor.
This may not ensure high-performance training or safe and reliable training, which avoids, for example, the risk of excessive tiredness or even falling of the user, whereby failing to satisfy in the best manner the need strongly felt nowadays to avail of a treadmill the timely control of which allows the user to perform high-performance and comfortable trainings with an adequate safety level.
It is the purpose of the present invention to devise and provide an adaptive control method of a treadmill which allows avoiding at least in part the aforesaid drawbacks with reference to the prior art, which in particular can ensure the timely and actual reaching of a rotation speed value of the electric motor of the treadmill (correlated with the training speed) corresponding to that required and expected by the user, whereby allowing the user to train as reliably and safely as possible.
A further object of the present invention is a treadmill implementing such a method and a respective program product.
Further features and advantages of the adaptive control method of a treadmill, of the treadmill and of the respective program product according to the present invention will be apparent from the following description indicatively provided by way of non-limiting example with reference to the accompanying figures, in which:
With general reference to the aforesaid figures, a treadmill will now be described, indicated as a whole by reference numeral 100, according to an embodiment of the present invention.
It is worth noting that equivalent or similar elements are indicated by the same numerical and/or alphanumerical reference in the aforesaid figures.
It is worth noting that
With reference to
The base 101 comprises a first rotating element 102 and a second rotating element 103 adapted to rotate about respective rotational axes, in particular a first rotation axis A2 for the first rotating element 102 and a second rotation axis A3 for the second rotating element 203, transversal to the longitudinal axis L of the base 101 of the treadmill 100.
It is worth noting that the first rotating element 102 is arranged at an end of the base 101, whilst the second rotating element 103 is arranged at a second end of the base 101, opposite to said first end along the longitudinal axis L of the base 101.
The treadmill 100 further comprises a physical exercise surface 104 for the training of a user U (diagrammatically shown in
In particular, the physical exercise surface 104 is operatively connected to the first rotating element 102 and to the second rotating element 103 of the base 101.
It is worth noting that the physical exercise surface 104, between the first rotating element 102 and the second rotating element 103, has a side profile which is substantially parallel with respect to the longitudinal axis L of the base 101.
For the purposes of the present description, “physical exercise surface” means the rotational surface of the treadmill 100 on which a user U, by placing his or her feet or lower limbs in general, can carry out a physical exercise, such as, for example, running, and also walking or any other type of physical exercise that the treadmill 100 allows.
Running is the physical exercise to which reference will be made in particular for the purposes of the present invention.
Furthermore, it is worth noting that “rotating element” means any mechanical element adapted to rotate about a respective rotation axis so as to impart a rotation to the “physical exercise surface” operatively associated with one or more of these rotating elements.
The type of rotating elements, some examples of which will be described below, depends on the type of physical exercise surface to be rotated.
In greater detail, the rotation of the first rotating element 102 also drives the physical exercise surface 104 and the second rotating element 103 into rotation.
In entirely similar manner, the rotation of the second rotating element 103 drives the first rotating element 102 and the physical exercise surface 104 into rotation.
The physical exercise surface 104 has a development direction DS, shown in figures by a dashed line, and a first feeding direction v1, shown in figures by an arrow, in parallel to the development direction DS of the physical exercise surface 104.
The user U, during the training on the treadmill 100, has a respective movement direction vu, also shown in the figures by an arrow, parallel to the development direction DS of the physical exercise surface 104, opposite to the first feeding direction v1.
In the example of
In an embodiment (not shown in the figure), the physical exercise surface 104 comprises a belt wound about the first rotating element 102 and the second rotating element 103 and a supporting table, arranged between the first rotating element 102 and the second rotating element along the longitudinal axis L of the base 101, on which the belt defining the physical exercise surface 104 runs.
In this embodiment, the first rotating element 102 and the second rotating element 103 comprise two respective rolls, each rotationally coupled to the base 101 of the treadmill 100 at the two ends of the base 101, to which the belt is connected.
According to a further embodiment, shown in
In this embodiment, both the first rotating element 102 and the second rotating element 103 comprise two respective pulleys arranged near the side portions of the base 101, transversely to the longitudinal axis L of the base 101, adapted to support the plurality of slats 104′ at the side edges of each slat.
Furthermore, the physical exercise surface 104, at the side edges of the plurality of slats 104′, is supported by respective side guides (also not shown) fixed to the base 101, each comprising, for example, a series of small rolls coupled in a freely rotating way to the base 101 on which the respective side edge of the plurality of slats 104′ runs.
Again with reference to the embodiment in
The electronic control unit 200 is configured to execute steps of an adaptive control method of a treadmill 100 in accordance with the present invention, described below.
In this respect, it is worth noting that the operation of the electronic control unit 200 will be described below by making direct reference to the steps of the aforesaid control method executed by the electronic control unit 200.
With reference to
The electric motor 105 is operatively connected to the data processing unit 106.
Furthermore, the electric motor 105 is operatively connected to the physical exercise surface 104 to move the physical exercise surface 104, under the control of the data processing unit 106, along the development direction DS of the physical exercise surface 104 in the first feeding direction V1.
In greater detail, the electric motor 105 is, for example, operatively associated with at least one among said first rotating element 102 and second rotating element 103.
Examples of motors may be electric brushless type motors, three-phase asynchronous electric motors, variable reluctance electric motors, direct current electric motors, and so forth.
It is worth noting that in the description which follows and also in
The electric motor 105, operatively associated with and controllable by a data processing unit 106 (described below), is configured to assume a rotation speed whereby consequently rotating the first rotating element 102 about the respective rotation axis, i.e. the first rotation axis A2. The rotation of the first rotating element 102 drives the physical exercise surface 104 into rotation, which also rotates the second rotating element 103 about the respective rotation axis, i.e. the second rotation axis A3.
It is worth reiterating that, when the physical exercise surface 104 is in motion, the first feeding direction v1 of the physical exercise surface 104 is opposite to the movement direction vu of the user U.
Again with reference to
The drive 105′ is configured to supply an electric current to the electric motor 105 to generate a torque adapted to move the physical exercise surface 104 so that the electric motor 105 and drive 105′ assembly can correct the instantaneous rotation speed of the electric motor 105, which is inevitably disrupted by the interaction of the user U with the physical exercise surface 104 while performing the physical activity, returning it as close as possible to a reference instantaneous speed rotation value.
As mentioned above, again with reference to the embodiment in
Furthermore, in this embodiment, the electronic control unit 200 comprises a memory unit 107 operatively connected to the data processing unit 106.
The memory unit 107 can be either internal or external (as shown in
It is worth noting that the memory unit 107 is configured to store one or more program codes which can be executed by the data processing unit 106 and data generated by said one or more program codes.
The electronic data processing unit 106 is configured to allow the electronic control unit 200 to execute the steps of an adaptive method of a treadmill 100 in accordance with the present invention, described below.
In accordance with an embodiment (shown in
It is worth noting that in this embodiment, the first data processing block 108 may coincide with the microprocessor of the drive 105′ of the electric motor 105.
In this embodiment, the memory unit 107 comprises a first memory block 109 operatively connected to the first data processing block 108.
In this embodiment, some steps of the adaptive control method of a treadmill 100 which can be executed by the electronic control unit 200 and described below, are executed by the first data processing block 108, e.g. by the microcontroller of the drive 105′ of the electric motor 105.
In accordance with a further embodiment, in combination with the preceding one (shown by dashed lines in
The second data processing block 110 is remote with respect to the first data processing block 108.
For example, the second data processing block 110 may be positioned in an electronic control unit of a user interface 112, the latter described below, with which the treadmill 100 is provided.
In this embodiment, the memory unit 107 comprises a second memory block 111 operatively connected to the second data processing block 110, also positioned in the control electronics of the user interface 112 of the treadmill 100.
The data link between the first data processing block 108 and the second data processing block 110 may be wired or wireless (e.g. by Bluetooth, NFC or Wi-Fi type data communication channel).
According to an embodiment, all the steps of the adaptive control method of a treadmill 100, which can be executed by an electronic control unit 200 and described below, are performed exclusively by the first data processing block 108, e.g. by the microcontroller of the drive 105′ of the electric motor 105.
According to an embodiment, alternative to the preceding one, the steps of the adaptive control method of a treadmill 100 in accordance with the present invention, described below, can be performed exclusively by the second data processing block 110.
In a further embodiment, alternative to the previous ones, a first plurality of steps of the aforesaid method can be performed by the first data processing block 108, while a second plurality of steps of the same method can be performed by the second data processing block 110.
By way of example, the second data processing block 110 may generate the commands to be provided to the electric motor 105, while the first data processing block 108, i.e. for example the microcontroller of the drive 105′ of the electric motor 105, can impart to the electric motor 105 the commands generated by and received from the second data processing block 110.
In this manner, it is advantageously possible to reduce the task, from a computational point of view, of the first processing block 108 which, corresponding for example to the microcontroller of the drive of the treadmill 100, is configured to supply the electric current to the electric motor 105 to generate the torque adapted to move the physical exercise surface 104 so that the electric motor 105 and drive 105′ assembly can correct the instantaneous rotation speed of the electric motor 105′, inevitably disrupted by the interaction of the user U with the physical exercise surface 104 while performing the physical activity, returning it as close as possible to an instantaneous speed rotation reference value.
With reference now in particular to
The frame 112 is a combination of uprights and tubular elements operatively connected to one another and distributed so as to define a supporting structure which at least in part surrounds the user U when he or she is on the physical exercise surface 104 (as shown in the aforesaid figures).
According to a further embodiment, in combination with any one of those described above or in combination therewith, shown again for example in
In more detail, as shown in
The distance sensor SD is configured to detect a distance value of a portion PU of the user U from a reference point RF arranged on the treadmill 100, while performing the physical activity on the treadmill 100.
For the purposes of the present description, “portion of the user” means a part of the body above the lower limbs, preferably the lower part of the trunk at the pelvis or the navel.
Reference point RF coincides with the distance sensor SD (as shown in
However, it is worth noting that in
It is worth noting that for the sake of uniformity, the straight line indicated by reference RF is also shown in
Again with reference to
As previously mentioned, according to an embodiment, shown for example in
In greater detail, the user interface 113 is operatively connected to the data processing unit 106 of the electronic control unit 200.
In this regard, the user interface 113 may be connected to the data processing unit 106 according to different methods described above, in accordance with various embodiments.
The user interface 113 comprises a display and a control console configured to allow the user to impart commands to the treadmill 100.
In an embodiment, if the display is of the touchscreen type, the control console may coincide with the display of the user interface 113.
It is worth noting that the display of the user interface 113 allows the user U to be able to view both content specific to the use of the treadmill 100, including content correlated to the adaptive control method, which will be described below, and entertainment or user service multimedia content.
In this regard, each of
With reference now to the figures illustrated hereto and also to the block charts of
The method 900 comprises, in a current time instant ti, with 1<i<N, of a plurality of time instants t1, T2, . . . , TN, a step of a) dividing 901, by an electronic control unit 200 of the movement of a physical exercise surface 104 of the treadmill 100, the physical exercise surface 104 of the treadmill 100 facing a user U during exercise on the treadmill 100, into a plurality PZ of control zones of the treadmill 100 as a function of a distance from a reference point RF arranged on a treadmill 100.
In relation to the plurality of time instants t1, T2, . . . , TN, it is worth noting that the distance in time between the aforesaid time instants depends on the sampling frequency with which the electronic control unit 200 is configured in order to execute the method 900.
As said above, the physical exercise surface 104 has a development direction DS and a first feeding direction v1 parallel to the development direction DS.
With particular reference to
The first width A1 is comprised between a first boundary line E1 and a second boundary line E1′.
The first boundary line E1 is at a first distance D1 from the reference point RF.
The second boundary line E1′ is at a second distance D1′ from the reference point RF. The second distance D1′ is greater than the first distance D1.
It is worth noting that, in the figures, the distance from the reference point RF of any boundary line defined in the plurality PZ of control zones is defined as the distance along the development direction DS of the physical exercise surface 104 of the projection of the reference point RF (coinciding with the distance sensor SD) on the physical exercise surface 104.
The plurality PZ of control zones along the development direction DS of the physical exercise surface 104 further comprises at least a second control zone Z2 having a respective second width A2 along the development direction DS of the physical exercise surface 104.
The second width A2 is comprised between a third boundary line E2 and a fourth boundary line E2′.
The third boundary line E2 is at a third distance D2 from the reference point RF.
The fourth boundary line E2′ is at a fourth distance D2′ from the reference point RF. The fourth distance D2′ is greater than the third distance D2.
It is worth noting that the fourth boundary line E2′ of said at least a second control zone Z2 coincides with the first boundary line E1 of said at least a first control zone Z1.
For the purposes of the present description, it is worth noting that the at least a first control zone Z1 was defined so that, if the distance value dU(ti) of the portion PU of the user U from the reference point RF is such as to be comprised between the first boundary line E1 and the second boundary line E1′ of the at least a first control zone Z1, the electronic control unit 200 is configured to maintain a constant feeding speed of the physical exercise surface 104 (while maintaining a constant rotation speed of the electric motor 105 with which the feeding speed of the physical exercise surface 104 is correlated).
Therefore, as reasserted below, the at least a first control zone Z1 is also named comfort zone because by running inside it the user U can maintain a substantially constant training speed.
It is worth noting that the boundary lines of each control zone (the at least a first control zone Z1, the at least a second control zone Z2 and the additional control zones which will be introduced and described below) have a respective distance from the reference point RF which is dynamic in time, i.e., as will be described below, which at each time instant after the current time instant ti can maintain the same value or be modified to assume a different value, according to the operating mode that the treadmill 100 can assume during the execution of the method 900.
Turning back to
It is worth noting that the step of b) detecting is performed by using the distance sensor SD operatively connected to the electronic control unit 200, as described above.
In this regard, again in the current time instant ti of a plurality of subsequent time instants t1, t2, . . . , tN, the method 900 comprises a step of c) comparing 903, by the electronic control unit 200 for the movement of the physical exercise surface 104 of the treadmill 100, the distance value dU(ti) detected with the first distance D1 of the first boundary line E1 of the at least a first control zone Z1.
At the current time instant ti of the plurality of time instants t1, T2, . . . , TN, if the detected distance value dU(ti) is smaller than the first distance D1 of the first boundary line E1 (
The fact that, during the training on the physical exercise surface 104 of the treadmill 100, the distance value dU(ti) detected in the current time instant ti is smaller than the first distance D1 of the first boundary line E1 of the at least a first control zone Z1 means that the portion PU of the user U is located in the at least a second control zone Z2.
For this reason, considering that the feeding speed of the physical exercise surface 104 is increased in automatic and adaptive manner in such condition, the at least a second control zone Z2 can also be defined as “acceleration zone” of the physical exercise surface 104.
Furthermore, again in the current time instant ti of the plurality of time instants t1, t2, . . . , tN, if the detected distance value dU(ti) is smaller than the first distance D1 of the first boundary line E1 (
In an embodiment, shown in
In greater detail,
With particular reference to
The first graphic bar 200, in the example of
The second graphic bar 201, adjacent to the first graphic bar 200 and placed above it, comprises a representation of the plurality PZ of control zones and a slider PU (in the example of
In greater detail, in the example in
In a further embodiment, alternative to the preceding one and shown in
It is worth noting that the first minimum reference distance DR is represented in
Turning back, in general, to both
It is worth noting that also in this case, the step of b) detecting 902′ is performed by using the distance sensor SD operatively connected to the electronic control unit 200.
Again in the current time instant ti+1, if the detected distance value dU(ti+1) is smaller than the distance value dU(ti) detected in the preceding time instant ti, the method (900) further comprises steps of:
It is worth noting that the steps just described are shown again in
The fact that, while training on the physical exercise surface 104 of the treadmill 100, the distance value dU(t+1) detected in the current time instant ti+1 is smaller than the distance value dU(ti) detected in the preceding time instant ti means that the portion PU of the user U is at a smaller distance also of the first distance D1 as modified in the preceding time instant ti.
Therefore, the portion PU of the user is still in the at least a second control zone Z2, i.e. in the “acceleration zone”.
For this reason, the physical exercise surface 104 is still subject, by the electronic control unit 200, to an increase of the feeding speed in automatic and adaptive manner.
Furthermore, the fact that, during the training on the physical exercise surface 104 of the treadmill 100, the distance value dU(t+1) detected in the current time instant ti+1 is smaller than the distance value dU(ti) detected in the preceding time instant tthe implies the modification (displacement), also in the time instant ti+1, of the first distance D1 of the first boundary line E1 of the at least a first control zone Z1 in the second direction v2 opposite to the first feeding direction v1 so as to either follow or reach the detected distance value dU(ti+1), advantageously allowing the first boundary line E1 of the at least a first control zone Z1 to follow the portion PU of the user.
In this manner, the method 900 advantageously ensures that the at least a first control zone Z1 (“comfort zone”) follows as much as possible the movement of the user U on the physical exercise surface 104 so as to allow the user U him or herself to return from the at least a second control zone Z2 (“acceleration zone”) to a detected distance value dU(ti+1) such as to fall between the first boundary line E1 and the second boundary line E1′ of the at least a first control zone Z1 (“comfort area”) by promptly controlling the treadmill 100 in a more precise and safe manner, consequently making the training of the user U safer and more accurate.
It is worth noting that in an embodiment, shown in
In greater detail, also in this case,
In a further embodiment, alternative to the preceding one and shown in
Turning back to the last embodiment described, shown in
So, according to the method of the present invention, at each time instant of the plurality of time instants t1, t2, . . . , tN, the electronic control unit 200 resumes the execution of the step of e) detecting 902′ and continues the method by comparing the distance value dU(ti+1) detected in the current time instant ti+1 with the distance value dU(ti) detected in the preceding time instant ti and the first distance D1 as modified in the last preceding time instant in which it was necessary to change the first distance D1 (step g2) of modifying 905′).
In an embodiment, shown in
It is worth noting that from this moment on, the subsequent step of c) comparing 903 compares the value of distance dU(ti+1) detected again in the step of b) detecting 902 with the first distance D1 modified in the last preceding time instant in which it was necessary to change the first distance D1 (step of g2) modifying 905′).
In an embodiment, also shown in
Furthermore, in this embodiment, the method 900 comprises a step of returning 909, by the electronic control unit 200 for the movement of the physical exercise surface 104 of the treadmill 100, to the step of e) detecting 902′ to perform the method 900 starting from the step of e) detecting 902′ in time instants subsequent to the current time instant ti+1.
It is worth noting that in this embodiment, in which the user U always maintains the same position with respect to the reference point RF, inside the at least a first control zone Z1, the method 900 includes continuing to increase the feeding speed of the physical exercise surface 104 (step of g1) controlling 904′) without further modifying the first distance D1 of the first boundary line E1 of the at least a first control zone Z1.
In an embodiment, in combination with any one of those described above or in combination therewith, in the step of d1) controlling 904 and in the step of g1) controlling 904′, the increase in the feeding speed of the physical exercise surface 104 is an acceleration of the physical exercise surface 104, the value of which is a function of the feeding speed value of the physical exercise surface 104 from which the acceleration starts, i.e. the instantaneous speed value of the physical exercise surface 104 in the time instant ti and in the time instant ti+1, respectively, in which the passage occurs from the at least a first control zone Z1 to the at least a second control zone Z2 (dU(ti) and dU(ti+1), respectively, smaller than the first distance D1 of the first boundary line E1).
In greater detail, the acceleration value of the physical exercise surface 104 imparted by the electronic control unit 200 is a function of the feeding speed value of the physical exercise surface 104 as follows: the higher the feeding speed value of the physical exercise surface 104 from which the acceleration starts, the smaller is the imparted acceleration value of the physical exercise surface 104.
In other words, if the feeding speed value of the physical exercise surface 104 from which the acceleration starts is already high, the acceleration value of the physical exercise surface 104 imparted by the electronic control unit 200 will be lower than the case in which the feeding speed of the physical exercise surface 104 from which the acceleration starts is lower.
Therefore, in this embodiment, it is possible to advantageously control the acceleration of the physical exercise surface 104 in the respective “acceleration zone” with a linear law variation with respect to the feeding speed of the physical exercise surface 104 from which the acceleration starts or, in an equivalent manner, by how much the user U passes from at least a first control zone Z1 to the at least a second control zone Z2, passing beyond the first boundary line E1 of the at least a first control zone Z1 (or fourth boundary line E2′ of the at least a second control zone Z2).
According to an embodiment, either in combination with or as an alternative to the preceding one, in step of d1) controlling 904 and in the step of g1) controlling (904′), the increase of the feeding speed of the physical exercise surface 104 is an acceleration, the value of which is inversely proportional to the detected distance value (dU(ti) or dU(ti+1)) of the portion PU of the user U from the reference point RF arranged on the treadmill 100.
In other words, the smaller is the distance of the user U from the reference point RF, the greater is the acceleration to which the physical exercise surface 104 is subjected.
Therefore, in this embodiment, it is possible to advantageously control the acceleration of the physical exercise surface 104 in the respective “acceleration zone” in manner linearly dependent on the distance of the user U from the reference point RF (distance sensor SD).
According to an embodiment, shown by dashed lines in
In this regard,
In the current time instant ti+1 subsequent to the preceding time instant ti, if the distance value dU(ti+1) detected in the current time instant ti+1 is smaller than the first distance value dU(ti)+DR, the method 900 again comprises the steps of:
In greater detail,
According to a further embodiment, shown by dashed lines in
Therefore, from this moment on, the subsequent step of c) comparing 903 will compare the value of distance dU(ti+1) detected again in the step of b) detecting 902 with the distance value D1 as modified in the last preceding time instant in which it was necessary to change the first distance D1 (step of g2) modifying 905′).
It is worth noting that in the embodiments just described, respecting the first minimum distance of reference DR advantageously allows improving the functionality of the treadmill 100 during the execution of the control method because it allows filtering the fluctuations in the detected distance value dU(ti+1) and to prevent any movements of the user U associated with the gesture of running itself to be interpreted as the user's willingness not to increase the feeding speed of the physical exercise surface 104 anymore.
In this manner, the electronic control unit 200 effectively and reliably recognizes user's intention to modify or maintain a constant feeding speed of the physical exercise surface 104 ensuring a control and enhanced functionality of the treadmill 100.
According to a further embodiment, shown for example in
According to a further embodiment, again shown for example in
In both embodiments just described, the fact that also the second boundary line E1′ of the at least a first control zone Z1 follows the user U allows the user to be able to exit the at least a first control zone Z1, passing through the second boundary line E1′, in order to impart additional controls (described below) to the physical exercise surface 104 of the treadmill 100, by traveling less distance with respect to the reference point RF.
According to a further embodiment, in combination with any one of those described above or in combination therewith, illustrated in
The third width A3 is comprised between a fifth boundary line E3 and a sixth boundary line E3′.
The fifth boundary line E3 is at a fifth distance D3 from the reference point RF.
The sixth boundary line E3′ is a sixth distance D3′ from the reference point RF. The sixth distance D3′ is greater than the fifth distance D3.
The fifth boundary line E3 of said at least a third control zone Z3 coincides with the second boundary line E1′ of said at least a first control zone Z1.
According to this embodiment, as shown by dashed lines in
In the current time instant ti of the plurality of time instants t1, t2, . . . , tN, if the detected distance value dU(ti) is smaller than the second distance D1′ of the second boundary line E1′, the method 900, in an embodiment shown by dashed lines in
Furthermore, in the current time instant ti of the plurality of time instants t1, t2, . . . , tN, if the detected distance value dU(ti) is greater than the second distance D1′ of the second boundary line E1′ (
The fact that, while training on the physical exercise surface 104 of the treadmill 100, the distance value dU(ti) detected at the first time instant ti is greater than the second distance D1′ of the second boundary line E1′ of the at least a first control zone Z1 means that the portion PU of the user U is located in the at least a third control zone Z3.
For this reason, considering that the feeding speed of the physical exercise surface 104 decreases in automatic and adaptive manner in such condition, the at least a third control zone Z3 can also be defined as “deceleration zone” of the physical exercise surface 104.
Furthermore, again in the current time instant ti of the plurality of time instants t1, t2, . . . , tN, if the detected distance value dU(ti) is greater than the second distance D1′ of the second boundary line E1′ (
In an embodiment, shown in
In greater detail,
With particular reference to
The first graphic bar 200 comprises, in the example of
The second graphic bar 201, adjacent to the first graphic bar 200 and placed above it, comprises the plurality PZ control zones and a slider PU (in the example of
In greater detail, in the example in
In a further embodiment, alternative to the preceding one and shown in
It is worth noting that the second minimum distance of reference DR is represented in
Turning back to
It is worth noting that also in this case, the step of b) detecting 920′ is performed by using the distance sensor SD operatively connected to the electronic control unit 200.
Again in the current time instant ti+1, if the detected distance value dU(ti+1) is greater than the distance value dU(ti) detected in the preceding time instant ti, the method (900) further comprises steps of:
It is worth noting that the steps just described are shown again in
The fact that, while performing the training on the physical exercise surface 104 of the treadmill 100, the distance value dU(t+1) detected in the current time instant ti+1 is greater than the distance value dU(ti) detected in the preceding time instant ti means that the portion PU of the user U is at a greater distance also of the second distance D1′ as modified in the preceding time instant ti.
Therefore, the portion PU of the user is still in the at least a third control zone Z3, i.e. in the “deceleration zone”.
For this reason, the physical exercise surface 104 is still subject, by the electronic control unit 200, to a decrease of the feeding speed in automatic and adaptive manner.
Furthermore, the fact that, during the training on the physical exercise surface 104 of the treadmill 100, the distance value dU(t+1) detected in the current time instant ti+1 is greater than the distance value dU(ti) detected in the preceding time instant ti involves the modification (displacement), also in the current time instant ti+1, of the second distance D1′ of the second boundary line E1′ of the at least a first control zone Z1 in the first feeding direction v1 so as to follow or reach the detected distance value dU(ti+1), advantageously allowing the second boundary line E1′ of the at least a first control zone Z1 to follow the portion PU of the user.
In this manner, the method 900 advantageously ensures that the at least a first control zone Z1 (“comfort zone”) follows as much as possible the movement of the user U on the physical exercise surface 104 so as to allow the user U him or herself to return from the at least a third control zone Z3 (“deceleration zone”) to a detected distance value dU(ti+1) such as to fall between the first boundary line E1 and the second boundary line E1′ of the at least a first control zone Z1 (“comfort area”) by promptly controlling the treadmill 100 in a more precise and safe manner, consequently making the training of the user U safer and more accurate.
It is worth noting that in an embodiment, shown in
In greater detail, also in this case,
In a further embodiment, alternative to the preceding one and shown in
Referring again to the last embodiment described, shown in
So, according to the method of the present invention, at each time instant of the plurality of time instants t1, t2, . . . , tN subsequent to the current time instant ti+1, the electronic control unit 200 resumes the execution of a step of e′) detecting 920′ and continues the method by comparing the distance value dU(ti+1) detected in the current time instant ti+1 with the distance value dU(ti) detected in the preceding time instant ti and the second distance D1′ as modified in the last preceding time instant in which it was necessary to change the second distance D1′ (step of g2′) modifying 925).
In an embodiment, shown in
It is worth noting that from this moment on, the subsequent step of c) comparing 920 compares the value of distance dU(t+1) detected again in the step of b) detecting 902 with the second distance D1′ modified in the last preceding time instant in which it was necessary to change the second distance D1′ (step of g2′) modifying 925).
In an embodiment, also shown in
Furthermore, in this embodiment, the method 900 comprises a step of returning 928, by the electronic control unit 200 for the movement of the physical exercise surface 104 of the treadmill 100, to the step of (e′) detecting 920′ to perform the method 900 starting from the step of (e′) detecting 920′ in time instants subsequent to the current time instant ti+1.
It is worth noting that in this embodiment, in which the user U always maintains the same position with respect to the reference point RF, inside the at least a third control zone Z3, the method 900 includes continuing to increase the feeding speed of the physical exercise surface 104 (step of g1′) controlling 924) without further modifying the second distance D1 of the second boundary line E1′ of the at least a first control zone Z1.
In an embodiment, in combination with any one of those described above or in combination therewith, in the step of d1′) controlling 921 and in the step of g1′) controlling 924, the decrease in the feeding speed of the physical exercise surface 104 is a deceleration of the physical exercise surface 104, the value of which is a function of the feeding speed value of the physical exercise surface 104 from which the deceleration starts, i.e. the instantaneous feeding speed value of the physical exercise surface 104 in the current time instant ti and in the current time instant ti+1, respectively, in which the passage occurs from the at least a first control zone Z1 to the at least a third control zone Z3 (dU(ti) and dU(ti+1), respectively, greater than the second distance D1′ of the second boundary line E1′).
In greater detail, the deceleration value of the physical exercise surface 104 imparted by the electronic control unit 200 is a function of the feeding speed value of the physical exercise surface 104 as follows: the higher is the feeding speed value of the physical exercise surface 104 from which the deceleration starts, the bigger is the imparted deceleration value of the physical exercise surface 104.
In other words, if the feeding speed value of the physical exercise surface 104 from which the deceleration starts is already high, the deceleration value of the physical exercise surface 104 imparted by the electronic control unit 200 will be lower than the case in which the feeding speed of the physical exercise surface 104 from which the deceleration starts is lower.
Therefore, in this embodiment, it is possible to advantageously control the deceleration of the physical exercise surface 104 in the respective “deceleration zone” with a linear law variation with respect to the feeding speed of the physical exercise surface 104 from which the deceleration starts or, in an equivalent manner, by how much the user U passes from at least a first control zone Z1 to the at least a third control zone Z3, passing beyond the second boundary line E1′ of the at least a first control zone Z1 (or the fifth boundary line E3 of the at least a third control zone Z3).
According to an embodiment, either in combination with or as an alternative to the preceding one, in step of d1′) controlling 921 and in the step of g1′) controlling 914, the decrease of the feeding speed of the physical exercise surface 104 is a deceleration, the value of which is directly proportional to the detected value of the distance (dU(ti) or dU(ti+1)) of the portion PU of the user U from the reference point RF arranged on the treadmill 100.
In other words, the greater is the distance of the user U from the reference point RF, the greater is the deceleration to which the physical exercise surface 104 is subjected.
Therefore, in this embodiment, it is possible to advantageously control the deceleration of the physical exercise surface 104 in the respective “deceleration zone” in manner linearly dependent with respect to the distance of the user U from the reference point RF (distance sensor SD).
According to an embodiment, shown by dashed lines in
It is worth noting that the second minimum distance of reference DR′ is represented in
In this regard,
In the current time instant ti+1 subsequent to the preceding time instant th if the distance value dU(ti+1) detected in the current time instant ti+1 is greater than the second distance value dU(ti)−DR′, the method 900 again comprises steps of:
In greater detail,
According to a further embodiment, shown by dashed lines in
Therefore, from this moment on, the subsequent step of c′) comparing 920 will compare the distance value dU(t+1) detected again in the step of b) detecting 902 with the second distance D1′ from the second boundary line E1′ of the at least a first control zone Z1 as modified in the last preceding time instant in which it was necessary to change the second distance D1′ (step of g2′) of modifying 925).
It is worth noting that in the embodiments just described, respecting the second minimum reference distance DR′ advantageously allows improving the functionality of the treadmill 100 during the execution of the control method because it allows filtering the fluctuations in the detected distance value dU(ti+1) and preventing any movements of the user U associated with the gesture of running itself to be interpreted as the user's willingness not to decrease the feeding speed of the physical exercise surface 104 anymore.
In this manner, the electronic control unit 200 effectively and reliably recognizes user's intention to modify or maintain a constant feeding speed of the physical exercise surface 104 ensuring a control and enhanced functionality of the treadmill 100.
According to a further embodiment, shown for example in
According to a further embodiment, also shown for example in
In both embodiments just described, the fact that also the first boundary line E1 of the at least a first control zone Z1 follows the user U allows the user to be able to exit the at least a first control zone Z1, passing through the second boundary line E1, in order to impart additional controls to the physical exercise surface 104 of the treadmill 100, entering into the at least a second control zone Z2, by traveling less distance with respect to the reference point RF.
In an embodiment, in combination with any one of those described above or in combination therewith, shown in
The fourth width A4 is comprised between a seventh boundary line E4 and an eighth boundary line E4′.
The seventh boundary line E4 is a seventh distance D4 from the reference point RF.
The eighth boundary line E4′ is an eighth distance D4′ from the reference point RF. The eighth distance D4′ is greater than the seventh distance D4.
The seventh boundary line E4 of said at least a fourth control zone Z4 coincides with the sixth boundary line E3′ of said at least a third control zone Z3.
According to an embodiment (shown in particular in
In the current time instant ti of the plurality of time instants t1, t2, . . . , tN, if the detected distance value dU(ti) is greater than the seventh distance D4 of the seventh boundary line E1′ (
In this regard,
The first graphic bar 200 comprises, in the example of
The second graphic bar 201, adjacent to the first graphic bar 200 and placed above it, comprises the plurality PZ of control zones and a slider PU (in the example of
In greater detail, in the example in
The fact that, while training on the physical exercise surface 104 of the treadmill 100, the distance value dU(ti) detected in the current time instant ti is greater than the seventh distance D4 of the seventh boundary line E4 of the at least a fourth control zone Z4 means that the portion PU of the user U is located in the at least a fourth control zone Z4.
For this reason, considering that in such condition the stopping of the physical exercise surface 104 occurs, the at least a fourth control zone Z4 can also be defined as “stop zone” of the physical exercise surface 104.
According to a further embodiment (shown in particular in
If, in the current time instant th the detected distance value dU(ti) is within the range of values included between the second distance D1′ of the second boundary line E1′ of the at least a first control zone Z1 and the first distance D1 of the first boundary line E1′ of the at least a first control zone Z1, the method 900 comprises steps of:
With reference to this embodiment,
The first graphic bar 200 comprises, in the example of
The second graphic bar 201, adjacent to the first graphic bar 200 and placed above it, comprises the plurality PZ of control zones and a slider PU (in the example of
In greater detail, in the example in
The fact that, while training on the physical exercise surface 104 of the treadmill 100, the distance value dU(ti) detected at the current time instant ti is comprised between the second distance D1′ of the at least one first control zone Z1 and the first distance D1 of the first boundary line E1 of the at least a first control zone Z1 means that the portion PU of the user U is located in the at least a first control zone (
For this reason, considering that in such condition the feeding speed of the physical exercise surface 104 remains unchanged, the at least a first control zone Z1 can also be defined as “comfort zone”.
Indeed, inside the “comfort zone”, the user U can perform the training while maintaining a training speed as constant as possible, avoiding for example efforts due to acceleration or deceleration of the physical exercise surface 104.
According to another aspect of the present invention, a program product can be loaded in a memory unit (e.g. the memory unit 107 of the electronic control unit 200 of the movement of the physical exercise surface 104 of the treadmill 100) of an electronic computer (e.g. the electronic control unit 200 of the movement of the physical exercise surface 104 of the treadmill 100).
Such product program can be executed by a data processing unit (e.g. the data processing unit 106 of the electronic control unit 200 of the movement of the physical exercise surface 104 of the treadmill 100) of the electronic computer (the electronic control unit 200 of the movement of the physical exercise surface 104 of the treadmill 100) for performing the steps of the method 900 according to any one of the embodiments described previously.
It is worth noting that the scope of the present invention is fully achieved.
Indeed, as mentioned above, the adaptive control method of the treadmill which is the object of the invention advantageously allows a more natural control very similar to outdoor running (without treadmill).
In particular, the control of the treadmill can be obtained in automatic and adaptive manner, and consequently in faster, readier and prompter manner, whereby ensuring greater safety and reliability.
This is due to the fact that the “comfort zone” (the at least a first control zone Z1), with respect to the prior art in which it was a static zone along the development direction of the physical exercise surface, in the method which is the present invention, shifts and adapts in width in automatic and adaptive manner to the position assumed by the user U on the physical exercise surface 104.
The fact that the “comfort zone” (the at least a first control zone Z1) displaces along the development direction DS of the physical exercise surface 104 advantageously allows obtaining a feeding speed of the physical exercise surface 104 at the desired value by the user.
The fact that the “comfort zone” (the at least a first control zone Z1) displaces along the development direction DS of the physical exercise surface 104 allows taking the physical exercise surface 104 to the desired speed in automatic and adaptive manner, therefore with greater precision than the prior art in which, for example in the case of acceleration, it is necessary for the user to retract until returning to the “static comfort zone” so that the feeding speed value of the physical exercise surface stabilizes, but in the meantime, remaining in the “acceleration zone”, the feeding speed of the physical exercise surface increases.
A similar advantage is found also in the case of deceleration. The fact that the “comfort zone” follows the user and remains just in front of the user, allows the user to decelerate in a timely manner with respect to the prior art in which there is a so-called “static comfort zone”.
Furthermore, according to particular embodiments, the method which is the object of the present invention advantageously allows checking the acceleration or deceleration) of the physical exercise surface in the respective “acceleration zone” (or “deceleration zone”) with a linear law variation with respect to the feeding speed of the physical exercise surface 104 from which the acceleration (or deceleration) starts.
Furthermore, in other embodiments, the method which is the object of the invention allows advantageously controlling the acceleration (or deceleration) of the physical exercise surface 104 in the “acceleration zone” (or “deceleration zone”) in manner linearly dependent on the distance of the user U from the reference point RF (distance sensor SD).
A person skilled in art will be able to make changes, adaptations and replacements of elements with functionally equivalent ones to the embodiments of the adaptive control method of a treadmill, of the treadmill and of the respective program product described above without departing from the scope of protection of the following claims. All the features described above as belonging to one possible embodiment may be implemented independently from the other embodiments described.
| Number | Date | Country | Kind |
|---|---|---|---|
| 102018000003278 | Mar 2018 | IT | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 5643142 | Salerno | Jul 1997 | A |
| 6179754 | Wang | Jan 2001 | B1 |
| 7094180 | Huang | Aug 2006 | B2 |
| 7101319 | Potts | Sep 2006 | B1 |
| 7153241 | Wang | Dec 2006 | B2 |
| 7231834 | Kurono | Jun 2007 | B2 |
| 7465256 | Maenpaa | Dec 2008 | B2 |
| 7914420 | Daly | Mar 2011 | B2 |
| 8480541 | Brunts | Jul 2013 | B1 |
| 9084712 | Roerdink | Jul 2015 | B2 |
| 9682306 | Lin | Jun 2017 | B2 |
| 9974997 | Cei | May 2018 | B2 |
| 10220259 | Brammer | Mar 2019 | B2 |
| 20060009333 | Wang | Jan 2006 | A1 |
| 20090036272 | Yoo | Feb 2009 | A1 |
| 20090176629 | Yi | Jul 2009 | A1 |
| 20100210419 | Park | Aug 2010 | A1 |
| 20130123071 | Rhea | May 2013 | A1 |
| 20160213976 | So | Jul 2016 | A1 |
| 20160296800 | Devor | Oct 2016 | A1 |
| 20170136289 | Frank | May 2017 | A1 |
| 20170266534 | Watterson | Sep 2017 | A1 |
| 20180111023 | Cei | Apr 2018 | A1 |
| 20190083843 | Del Monaco | Mar 2019 | A1 |
| 20190240540 | Wei | Aug 2019 | A1 |
| Number | Date | Country |
|---|---|---|
| 2009051298 | Apr 2009 | WO |
| Entry |
|---|
| Italian Search Report for corresponding Italian Patent Application No. 102018000003278 dated Oct. 26, 2018, 9 pages. |
| Number | Date | Country | |
|---|---|---|---|
| 20190269972 A1 | Sep 2019 | US |
