Patent Application
20180003421
The invention relates to a control unit for operating a refrigerant compressor system, wherein the refrigerant compressor system has a first refrigerant line system for expanded refrigerant and a second refrigerant line system for compressed refrigerant from at least one refrigerant compressor, which operates between the first refrigerant line system and the second refrigerant line system and is driven by its own motor, wherein the control unit has an operating unit.
Control units of this kind are known from the prior art, but the operation of these using the conventional keys is complex and not user-friendly.
The object of the invention is therefore to improve a control unit of the generic type such that it is operable in a user-friendly manner.
This object is achieved according to the invention in the case of a control unit of the type mentioned in the introduction in that the operating unit has a memory for image element data, for representing at least one component of the refrigerant compressor system, in that the operating unit has a display unit which, using the image element data of at least one of the components of the refrigerant compressor system, displays the at least one component on this display unit, as a component image element.
The advantage of the solution according to the invention lies in the fact that it opens up the possibility of representing on the display unit at least one component or a plurality of components of the refrigerant compressor system, and thus simplifying a readily comprehensible user interface for the operation thereof and making it more transparent and more clearly laid out for an operating person.
The components of the refrigerant compressor system may be of the most diverse types.
Thus one solution provides for the component to include at least one refrigerant compressor, and, using the image element data of the at least one refrigerant compressor, for the operating unit to represent this refrigerant compressor on the display unit, as a compressor image element.
Here, a compressor image element of this type may take the most diverse forms.
For example, it is provided for the respective compressor image element to be a realistic image of the respective refrigerant compressor that makes it more easily recognisable for an operating person.
As an alternative thereto, it is provided for the respective compressor image element to be a stylised image of the respective refrigerant compressor.
In principle, however, it is also possible for the respective compressor image element to be a symbol of the respective refrigerant compressor.
A further advantageous alternative provides for the component to include at least one refrigerant line, and, using the image element data of the refrigerant line, for the operating unit to represent the refrigerant line on the display unit, as a line image element.
The most diverse possibilities are likewise conceivable as regards the line image element.
Thus, an advantageous solution provides for the respective line image to be a realistic image of the at least one refrigerant line.
As an alternative thereto, however, it would also be conceivable for the respective line element to be a stylised image of the at least one refrigerant line.
Further, however, it would also be conceivable in principle for the respective line image element to be a symbol of the respective refrigerant line.
Further, another advantageous alternative provides for the component of the refrigerant compressor system to include a at least one sensor, and, using the image element data of the at least one sensor, for the operating unit to represent the sensor on the display unit, as a sensor image element.
The most diverse possibilities are also conceivable as regards the sensor image element.
For example, it would be conceivable for the sensor image element to be a realistic representation of the sensor.
As an alternative thereto, it is advantageous for the sensor image element to be an image element that represents the respective sensor in stylised form, wherein an image element of this kind that represents the respective sensor in stylised form has the advantage that the existence of the sensor is represented with sufficient precision but on the other hand a large quantity of data is not required for representing the image element.
Further, however, it is likewise conceivable in principle for the sensor image element to be an image element that represents the respective sensor symbolically and requires an even smaller quantity of data for the representation.
Further, in the representation of a sensor image element it is provided for the operating unit to have a memory for sensor data, and for the operating unit to represent the sensor data on the display unit.
Thus, the sensor data are available to an operating person in a simple manner.
In particular, it is favourable if the operating unit represents the sensor data on the display unit together with the sensor image element.
This solution has the major advantage that in this case the operating person can also simultaneously take in the sensor data in conjunction with the sensor image element.
Here, the term “sensor data” should be understood to mean any data required in conjunction with the sensor.
This means that the sensor data may either be a specification of the sensor itself or indeed sensor values.
It is preferably provided for the sensor values that are detected by the sensors to be represented as a part of the sensor data, for example with the sensor image element.
In particular, it is provided for the sensor values to be represented by a display element of the sensor image element.
In particular, it is provided for the respective sensor image element to be an image element having a display field for the respective sensor value measured by the sensor.
This means that for example the sensor image has a scale and the display element is represented as a pointer that indicates the sensor value in that the pointer points to the respective numerical value on the scale.
As an alternative thereto, it is preferably provided for the sensor values to be represented numerically in the sensor image element.
More detailed statements have not yet been made as regards the location of the representation of the respective sensor image element.
In principle, the respective sensor image element could be represented at any desired location on the display unit.
A particularly advantageous solution provides for the sensor image element to be represented at the location of the refrigerant compressor system at which the sensor detects the respective sensor value.
A further advantageous embodiment of the solution according to the invention provides for the component to be include at least one actuator of the refrigerant compressor system, and, using the image element data of the at least one actuator, for the operating unit to represent this actuator on the display unit, as an actuator image element.
Here, the term “actuators” should be understood to mean any components of the refrigerant compressor system that bring about or control a function.
In the case of an actuator, it is particularly advantageous if the operating unit has a memory for actuator data, and if the operating unit represents the actuator data on the display unit.
In this case, it is particularly advantageous if the actuator data are represented in a manner associated with the actuator image element.
Here, it is conceivable for example for the actuator data to be represented by a display element.
As an alternative thereto, it is provided for the actuator data to be represented numerically.
As an alternative or in addition to the embodiments of the control unit according to the invention that have been described above, a further advantageous embodiment provides for the operating unit to have a memory for image element data for the purpose of representing at least one operating state of the refrigerant compressor system, and, using the image element data of the at least one operating state of the refrigerant compressor system, for the operating unit to display the at least one operating state of the refrigerant compressor system on the display unit, as a state image element.
A display of the operating states of this kind may take place in the most diverse ways.
For example, it is conceivable for the state image element to be represented in conjunction with the respective component image element with which the operating state are associated.
For example, it would be conceivable to provide as the state image element a coloured background for the respective component image element, such that for example the respective operating state is represented by the coloured background of red or green in the respective component image element.
As an alternative thereto, however, it is also conceivable to represent the state image element by a graphical symbol in the respective component image element or alongside the respective component image element.
As an alternative or in addition thereto, a further solution provides for the state image element to be represented as a state field that is associated with the individual component image element.
As an alternative or in addition to the solutions above, a further advantageous solution provides for the operating unit to have a memory for image element data for the purpose of representing at least one operating element of the operating unit, and, using the image element data of the at least one operating element of the operating unit, for the operating unit to display the at least one operating element on the display unit, as an operating element image element.
Further, it is preferably provided for the memory to have image element data for representing at least one operating state of the respective operating element of the operating unit, and, using the image element data of the at least one operating state of the respective operating element, for the operating unit to display the at least one operating state of the operating element on the display unit, as an operating state image element.
Here, the operating state element may be represented in the most diverse ways.
Thus, an advantageous solution provides for the operating state image element to be represented on the display unit in a manner associated with the respective operating element image element.
However, it is also conceivable to represent the operating state element independently of the operating element image element, for example in the form of an additional signal element.
In conjunction with the description above of the solution according to the invention, more detailed statements have not been made as regards the construction of the display unit and the interaction with the display element.
Thus, an advantageous solution provides for the display unit to take a form such that, as a result of a manual interaction with one of the represented image elements of the operating unit, a command is producible.
This means that the manual interaction results in a defined command that is directed to and transmitted to the display unit and/or the operating unit and/or the control unit.
The manual interaction here may consist in moving a cursor to the image element and making the manual interaction for example by a mouse click such that the command is thereby generated and in particular can also be transmitted.
A particularly advantageous solution provides for the display unit to take the form of a touch-detecting display unit, in particular a touch-sensitive surface, and for the manual interaction to be performed by manually touching the surface of the display unit in the region of the image element represented on the display unit.
A display unit of this kind in particular takes the form of a so-called touchscreen, with the result that the manual interactions can be the usual interactions provided for with a touchscreen.
Manual interactions of this kind may be tapping or swiping, for example in the horizontal or vertical direction, or indeed making larger or smaller by the relative movement of two touch points in relation to one another, that is to say moving two touch points apart or together.
Here, the command that is generated and transmitted may be of the most diverse types.
Thus, one solution provides for the command, in particular in conjunction with an operating element, to be a command for activating or deactivating or changing an action.
As an alternative thereto, however, it is also conceivable for the command to serve to change the representation, for example to call up a different representation or a further representation.
Here, is further representation may be a changed representation of the same or a further image element.
However, it is also provided for the further representation function to be an enlarged representation of the same image element.
A further possibility provides for the further representation of the respective image element to be a representation of the respective image element with further image elements.
More detailed statements have not been made as regards the interaction between the display unit and the operating unit either.
Thus, it is provided for example for the display unit to communicate with the operating unit over a wired connection, that is to say that in this case the display unit is either arranged fixed to the operating unit or is movable in relation to the operating unit, but with a wired connection.
Another advantageous solution provides for the display unit to communicate wirelessly with the operating unit.
The term “wireless communication” should be understood for example as communication by way of W-LAN or Bluetooth or another wireless communication network, for example a radio network.
In the case of wireless communication with the operating unit, a plurality of solutions are likewise conceivable as regards the arrangement of the display unit.
It is for example likewise conceivable to arrange the display unit to be fixed in this case too.
However, it is particularly advantageous if the display unit is a portable unit that can simply be carried in a mobile manner, by an operating person.
This is achieved for example in that there serves as the display unit a tablet computer or even a mobile telephone or a mobile device of similar construction, over which communication with the operating unit is possible.
In the case of a further alternative, it is likewise preferably provided for on the one hand a wired display unit that communicates with the operating unit to be provided, but in addition also an operating unit that communicates wirelessly with the operating unit to be provided, with the result that the advantages of both solutions are combined.
Moreover, the object stated in the introduction is also achieved by methods having the features explained below, wherein the individual method features have the advantages explained above in conjunction with the features of the control unit.
In particular, the invention also relates to a method for operating a refrigerant compressor system by means of a control unit, wherein the refrigerant compressor system has a first refrigerant line system for expanded refrigerant, a second refrigerant line system for compressed refrigerant, and at least one refrigerant compressor, which operates between the first refrigerant line system and the second refrigerant line system and is driven by its own motor, and wherein the control unit has an operating unit, in which according to the invention the operating unit stores image element data, for representing at least one component of the refrigerant compressor system, and, using the image element data of the at least one component of the refrigerant compressor system, the operating unit displays this at least one component on the display unit, as a component image element.
Here, it is advantageous if the component includes at least one refrigerant compressor and in that, using the image element data of the by means of at least one refrigerant compressor, the operating unit represents this refrigerant compressor on the display unit, as a compressor image element.
In particular, it is provided for the respective compressor image element to be a realistic image of the respective refrigerant compressor.
As an alternative thereto, it is also conceivable for the respective compressor image element to be a stylised image of the respective refrigerant compressor.
A favourable solution provides for the component to include at least one refrigerant line, and, using the image element data of the at least one refrigerant line, for the operating unit to represent this at least one refrigerant line on the display unit, as a line image element.
Further, it is favourable if the respective line image element is a realistic image of the at least one refrigerant line.
As an alternative thereto, it is provided for the respective line image element to be a stylised image of the at least one refrigerant line.
A further advantageous solution provides for the component to include at least one sensor, and, using the image element data of the at least one sensor, for the operating unit to represent the at least one sensor on the display unit, as a sensor image element.
Favourably, it is provided for the sensor image element to be an image element that represents the respective sensor in stylised form.
As an alternative thereto, it is provided for the sensor image element to be an image element that represents the respective sensor symbolically.
A further solution provides for the operating unit to store for sensor data, and for the operating unit to represent the sensor data on the display unit.
Further, it is advantageous if the sensor values that are detected by the sensors are represented as a part of the sensor data.
For example, it is provided for the sensor values to be represented by a display element of the sensor image element.
However, it is also possible for the sensor values to be represented numerically in the sensor image element.
For the operating person, it is favourable if the sensor image element is represented at the location of the refrigerant compressor system at which the sensor detects the respective sensor value.
A further advantageous solution provides for the component to include at least one actuator of the refrigerant compressor system, and, using the image element data of the at least one actuator, for the operating unit to represent this actuator on the display unit, as an actuator image element.
In particular, it is favourable if the operating unit stores actuator data, and in that the operating unit represents the actuator data on the display unit.
Further, it is favourable if the actuator data detected by the actuator are represented in a manner associated with the actuator image element.
For example, it is provided for the actuator data to be represented by a display element.
As an alternative thereto, it is provided for the actuator data to be represented numerically.
As an alternative or in addition, the object is further achieved according to the invention in that the operating unit stores image element data for the purpose of representing at least one operating state of the refrigerant compressor system, and in that, using the image element data of the at least one operating state of the refrigerant compressor system, the operating unit displays the at least one operating state of the refrigerant compressor system on the display unit, as a state image element.
In particular, it is favourable if the state image element is represented in conjunction with the respective component image element with which the operating state is associated.
Further, it is advantageous if the state image element is represented as a state field that is associated with the individual component image element.
As an alternative or in addition thereto, the object is further achieved according to the invention in that the operating unit stores image element data for the purpose of representing at least one operating element of the operating unit, and in that, using the image element data of the at least one operating element of the operating unit, the operating unit displays the operating elements on the display unit, as operating image elements.
Preferably, for this purpose it is provided for the operating unit to store image element data for the purpose of representing at least one operating state of the respective operating element of the operating unit, and, using the image element data of the respective operating state of the operating element, for the operating unit to display the operating state of the operating element of the refrigerant compressor system on the display unit, as an operating state image element.
Further, it is favourable if the operating state image element is represented on the display unit in a manner associated with the respective operating element image element.
A particularly favourable solution provides for the display unit to take a form such that, as a result of a manual interaction with one of the image elements of the operating unit, a command is producible.
In particular, it is favourable if the display unit takes the form of a touch-detecting display unit, and in that the manual interaction is performed by manually touching a surface of the display unit in the region of the image element represented on the display unit.
For example, it is provided here for the transmitted command is a calling up of a further representation of at least one image element.
One possibility provides for the further representation to be a changed representation of the same or a further image element.
It is also possible for the further representation to be an enlarged representation of the same image element.
Furthermore, it is possible for the further representation of the respective image element to be a representation of the respective image element with further image elements.
In an advantageous embodiment, it is provided for the display unit to communicate with the operating unit over a wired connection.
Another alternative or additional solution provides for the display unit to communicate wirelessly with the operating unit.
In particular in this case, it is possible for the display unit to be carried by an operating person.
Further features and advantages of the invention form the subject matter of the description below and the illustrative drawing of an exemplary embodiment.
A refrigerant circuit K that is illustrated schematically in
Further, the refrigerant circuit K also includes a heat transfer device WTV for cooling the refrigerant that has been compressed by the refrigerant compressor system KVA, wherein this heat transfer device is connected to the line system LSV, an expansion member EXP that is arranged downstream of the heat transfer device WTV and expands the compressed refrigerant and supplies it to a heat transfer device WTE in which the refrigerant that has been cooled by the expansion is able to take up heat.
The refrigerant compressor system KVA that is illustrated by way of example in
Here, as illustrated in
Each of these refrigerant compressors 22, 24, 26 compresses the refrigerant that is moved through the first refrigerant line 12 to a higher pressure than the pressure in the first refrigerant line 12, wherein this higher pressure is typically an intermediate pressure or a high pressure.
The compressed refrigerant is moved out of the respective refrigerant compressor 22, 24, 26 to a second refrigerant line 42 that includes branch lines 44, 46, 48 that lead to each of the refrigerant compressors 22, 24, 26.
The second refrigerant line 42 for the compressed refrigerant includes a lubricant separator, which is designated 52 as a whole and by means of which there is separated off the lubricant entrained in the compressed refrigerant out of the refrigerant compressors 22, 24, 26, which refrigerant accumulates in the lubricant separator 52, for example at the base, and is moved from the lubricant separator 52 back to the individual refrigerant compressors 22, 24, 26 for the purpose of lubrication by way of a lubricant supply system 54.
For example, the lubricant supply system 54 here also includes a lubricant cooling device 56.
The second refrigerant line 42 further leads the refrigerant that is guided through the lubricant separator 52 to the second refrigerant line system LSV.
For the purpose of controlling the individual refrigerant compressor modules 10, a multiplicity of sensors and actuators are associated therewith, as illustrated in
For the purpose of detecting a temperature of the expanded refrigerant that is guided by the first refrigerant line 12, a first temperature sensor 62 is provided, which detects the temperature of the stream of expanded refrigerant that is guided in the first refrigerant line 12.
Further, a suction pressure of the individual refrigerant compressors 22, 24, 26 is detected, wherein for this purpose a suction pressure sensor 82, 84 is associated for example with each suction side 72, 74, 76 of the refrigerant compressors 22, 24, 26.
As an alternative thereto, however, it is also conceivable, instead of the individual suction pressure sensors 82, 84, 86, to connect the suction sides 72, 74, 76 to one another by a pressure-detecting line, and to allocate a common suction pressure sensor for all the suction sides 72, 74, 76 to the pressure-detecting line, such that an averaged suction pressure can be detected by this suction pressure sensor.
Further, in each of the refrigerant compressor modules 10 according to the invention, pressure sides 92, 94, 96 of the refrigerant compressors 22, 24, 26 are monitored, wherein for example for this purpose final pressure sensors 102, 104, 106 are associated with the individual pressure sides 92, 94, 96 of the refrigerant compressors 22, 24, 86.
In order moreover to be able to detect the temperature of the compressed refrigerant in the second refrigerant line 42, there are associated for example with the individual branch lines 44, 46, 48 second temperature sensors 112, 114, 116 that can detect the temperature of the refrigerant that is compressed by each individual refrigerant compressor 22, 24, 26 in each of the individual branch lines 44, 46, 48 individually.
In order to detect the temperature and pressure of the lubricant that is moved back from the lubricant separator 52 to the individual refrigerant compressors 22, 24, 26 by way of the lubricant supply system 54, not only is there associated with the lubricant supply system 54 a lubricant temperature sensor 122, but also for example a lubricant pressure is detected by lubricant pressure sensors 124, 126, 128, in particular in each case close to the lubricant inlet of the individual refrigerant compressors 22, 24, 26.
To control operation of the individual refrigerant compressor modules 10, alongside the described sensors there are also provided actuators, which are for example the individual motors 32, 34, 36 having, associated therewith, motor controllers 132, 134, 136 that take the form for example of inverters.
Further, there are associated with the individual compressors 22, 24, 26, in addition as actuators, control elements 142, 144, 146 by means of which the pressure ratio and/or volume ratio of the individual refrigerant compressors 22, 24, 26 is controlled.
The individual operating states of the individual refrigerant compressor modules 101 to 103 are controlled by a control unit that is designated 150 as a whole and is illustrated in conjunction with the refrigerant compressor modules 101 to 103 in
The individual refrigerant compressor modules 101 to 103 are controlled on the basis of sensor values of one or more of the above-mentioned sensors, or on the basis of external control variables of the refrigerant circuit, for example a pressure of the expanded refrigerant in the first refrigerant line system LSE or in the heat transfer unit WTE or a pressure of the compressed refrigerant in the refrigerant line system LSV.
For example, as illustrated in
Further, where appropriate in addition, the central processing units 154 and 156 are also provided with input/output units 164, 166 that are associated directly therewith.
The input/output units provide the possibility of making a connection with the respective sensors and actuators.
Thus, for example the temperature sensor 62 is connected to the input/output unit 172.
For the purpose of detecting the suction pressure applied across the suction sides 72, 74, 76 of the refrigerant compressors 22, 24, 26, a respective one of the suction pressure sensors 82, 84, 86 is connected to one of the input/output units, so for example the suction pressure sensor 82 is connected to the input/output unit 172, the suction pressure sensor 84 is connected to the input/output unit 174 and the suction pressure sensor 86 is connected to the input/output unit 176.
Further, the pressure sides 92, 94, 96 of the refrigerant compressors 22, 24, 26 are monitored by the final pressure sensors 102, 104, 106, wherein a respective one of the final pressure sensors is connected to one of the input/output units, so for example the final pressure sensor 102 is connected to the input/output unit 172, the final pressure sensor 104 is connected to the input/output unit 174 and the final pressure sensor 106 is connected to the input/output unit 176.
Further, the temperature sensors 112, 114, 116 that are associated with the branch lines 44, 46, 48 of the second refrigerant line 42 are connected to a respective one of the input/output units 172, 174, 176, so for example the temperature sensor 112 is connected to the input/output unit 172, the temperature sensor 114 is connected to the input/output unit 174 and the temperature sensor 116 is connected to the input/output unit 176.
Similarly, in each case a respective one of the lubricant pressure sensors 124, 126, 128 is connected to one of the input/output units, so for example the lubricant pressure sensor 124 is connected to the input/output unit 172, the lubricant pressure sensor 126 is connected to the input/output unit 174 and the lubricant pressure sensor 128 is connected to the input/output unit 176.
Further, the lubricant temperature sensor 122 is additionally connected for example to the input/output unit 176.
The actuators are also preferably connected by way of the input/output units 172, 174, 176. Thus, for example, the individual motor controllers 132, 134, 136 are likewise connected to individual input/output units.
For example, the motor controller 132 is connected to the input/output unit 172, the motor controller 134 is connected to the input/output unit 174 and the motor controller 136 is connected to the input/output unit 176.
The further actuators, for example the control elements 142, 144, 146 for controlling the volume or pressure ratio of the refrigerant compressors 22, 24, 26, are also connected to different input/output units.
Thus, for example, the control element 142 is connected to the input/output unit 172, the control element 144 is connected to the input/output unit 174 and the control element 146 is connected to the input/output unit 176.
As the above exemplary explanation of the connection of the individual sensors and actuators to the input/output units shows, the sensors and actuators that are associated with one of the refrigerant compressors 22, 24, 26 are preferably associated with an input/output unit.
This has the advantage that, for example in the event of a failure of one of the sensors and/or actuators, only one of the refrigerant compressor units 22, 24, 26 is affected, and so there is the possibility for example of continuing to operate the refrigerant compressor module 10 concerned using the other two refrigerant compressors 22, 24, 26.
Moreover, the two central processing units 154 and 156 that are provided are preferably used as redundant central processing units, and operate as follows:
In normal operation, the first central processing unit 154 takes over all the control functions for the refrigerant compressor system according to the invention, in particular for all the refrigerant compressor modules 101 to 103, and in so doing in particular communicates with the corresponding input/output units 172, 174 and 176 by way of the bus system 152.
During this, the second central processing unit 156 operates in a standby state in which there is no communication with the input/output units 172, 174 and 176, wherein there is transmitted to the second central processing unit 156 in the standby state, constantly or at successive intervals, a data stream that also transmits all the data detected by the first central processing unit 154 and stored in a memory 194 to a memory 196 of the second central processing unit 156, with the result that the second central processing unit 156 is at any time able to take over control of the refrigerant compressor system KVA according to the invention with the individual refrigerant compressor modules 101 to 103.
During this, the second central processing unit 156 constantly monitors the first central processing unit 154, in that it checks functioning thereof by transmitting data.
If the second central processing unit 156 establishes that a fault has occurred in the first central processing unit 154, the second central processing unit 156 takes over control of the refrigerant compressor system KVA according to the invention with the individual refrigerant compressor modules 101 to 103 and for this purpose deactivates the first central processing unit 154.
In this way, the control unit 150 as a whole is protected from a failure of the first central processing units 154.
Some of the sensors, for example the sensors 62 and/or the sensors 102, 104, 106 that are primarily provided for measurement, and/or also further sensors, are also protectable against failure by the direct association of redundant sensors, for example the sensors R62 and/or the sensors R102, R104, R106, wherein these redundant sensors R62, R102, R104, R106 may be connected for example in each case both to the input/output unit 164 and to the input/output unit 166, in order in this way to be available for interrogation during control of the refrigerant compressor system KVA by both the first central processing unit 154 or the second central processing unit 156 if the sensor 62, 102, 104, 106 that is in each case primarily provided for measurement fails.
For the purpose of operating the control unit 150, the latter has an operating unit, which is designated 200 as a whole and is for its part provided with a wired display unit 202 that communicates with the operating unit 200, and a memory 204 and a processor 206 for generating image elements on the display unit 202, wherein the image elements are generated on the display unit 202 by the processor 206, from image element data stored in the memory 204.
In addition to the wired display unit 202, a display unit 202′ that communicates wirelessly with the operating unit 200 is provided, and this communicates with the operating unit for example by way of W-LAN, Bluetooth or another communication network, and in one embodiment may be a suitable mobile telephone or a tablet computer.
Thus, a display unit 202′ is portable and may be used by an operating person at any time for the purpose of monitoring and/or functional control of the refrigerant compressor system KVA.
In this way, the operating unit 200 generates, for example as a first user interface, the overview representation that is illustrated in
Further, the representation according to
Preferably, it is possible to represent on the display unit 202, in addition to the operating image element BB, an operating state image element BZB, which represents the operating state, for example by a difference between light and dark, or a difference in colour.
Further, the overview representation according to
In order to be able to switch from the overview representation to other representations, the display unit 202 is provided with a touch-sensitive surface 208, with the result that the display unit 202, for example in the form of a so-called touchscreen, so that it is possible to identify a manual touch, and indeed a movement during a manual touch, as a command for the operating unit 200.
In this way, it is possible for example to call up as the second user interface one of the module image elements B101 to B103 as an enlarged representation, either by tapping in the region within the respective module image element B101 to B103 of the overview representation or by a horizontal or vertical swiping movement or by moving apart two touch points within the module image element B10 for the purpose of establishing how much it is enlarged.
A module image element BM10 of this kind, which is illustrated in
Here, each of the individual compressor image elements B22, B24, B26 can be, as illustrated by way of example in
As an alternative thereto, however, it is also possible to use instead of the realistic image a stylised image of the respective refrigerant compressor, or indeed a symbol of the respective refrigerant compressor.
Further, the module image element B10 also has line image elements, for example a line image element B12 for the first refrigerant line 12 and a line image element B42 for the second refrigerant line 42, that can be represented in connection with the compressor image elements B22, B24 and B26 and thus represent the refrigerant compressors 22, 24, 26 in connection with the first refrigerant line 12 and the second refrigerant line 42.
Moreover, the image element B42 for the second refrigerant line includes for example also the representation of the lubricant separator 52 provided in the second refrigerant line B42.
Further, the module image element B10 includes the representation of the line image element B54, which represents the lubricant supply system 54 and thus also shows the supply lines for the lubricant leading to the individual refrigerant compressors 22, 24, 26.
The module image element B10 further includes, as actuator image elements, for example the image elements B32, B34 and B36, which for the purpose of representing the motors 32, 34, 36 are realistic images of these motors 32, 34, 36.
As further actuator image elements, the module image element B10 also includes for example the actuator image elements B142, B144 and B146, which represent for example schematic illustrations of the control elements 142, 144 and 146 for setting the pressure ratio and/or the volume ratio of the refrigerant compressors 22, 24, 26.
Further, there are also represented, for example in the module image element B10 according to
As a result of a further manual intervention, either by tapping one of the compressor image elements B22, B24 or B26 or by a vertical or horizontal swiping movement or by moving apart two touch points in the region of one of the compressor image elements B22, B24 or B26, it is possible to represent individually and on an enlarged scale, as a third user interface, one of the refrigerant compressors 22, 24, 26, for example the refrigerant compressor 22 by means of the image element B22, as illustrated in
However, in conjunction with the compressor image element B22 there is also illustrated an enlarged actuator image element B142, which shows on an enlarged scale the setting of the control element 142 for setting the pressure ratio and/or the volume ratio of the respective refrigerant compressor, in this case the refrigerant compressor 22.
Further, this representation displays as a sensor image element B82 an analogue scale of a pressure-measuring instrument, wherein a pointer points to the respective sensor value on the analogue scale that was measured by the suction pressure sensor 82.
In the same way, there is represented as a sensor image element B102 an analogue scale having a pointer, wherein the pointer points to the sensor value that the final pressure sensor 102 detects on the pressure side 92 of the refrigerant compressor 22.
Finally, there is likewise represented as a sensor image element B124 an analogue scale having a pointer, wherein the pointer points to the sensor value measured by the lubricant pressure sensor 124 at the lubricant supply to the refrigerant compressor 22.
Further, and likewise as a display element having an analogue scale, there are represented in an image element BAD actuator data that show symbolically the pressure ratio and/or volume ratio at which the refrigerant compressor 22 is operating, on the basis of the setpoint set by the control element 142.
Finally, also represented is the actuator image element B32 that shows the motor 32 which is driving the first refrigerant compressor 22, and by means of this image element B32, actuator data of the motor 32 are represented, also in the form of an image element BAD.
As illustrated in
Further, there is also represented for example in the representation of the line image element B42 and B54, as a sensor image element B122, a display image element in which the lubricant temperature measured by the lubricant temperature sensor 122 is shown numerically.
The representation of the image elements B42 and B54 according to
Moreover, as illustrated in
Further, there is also the possibility of representing, by the control image elements B172, B174 and B176, the input/output units 172, 174 and 176, and for example of representing the extent to which these are active and properly functioning.
In a further exemplary embodiment of a control unit according to the invention, as illustrated in
In a simplified exemplary embodiment of a control unit according to the invention, as illustrated in
| Number | Date | Country | Kind |
|---|---|---|---|
| 10 2015 103 729.7 | Mar 2015 | DE | national |
This application is a continuation of International application number PCT/EP2016/054905 filed on Mar. 8, 2016. This patent application claims the benefit of International application No. PCT/EP2016/054905 of Mar. 8, 2016 and German application No. 10 2015 103 729.7 of Mar. 13, 2015, the teachings and disclosure of which are hereby incorporated in their entirety by reference thereto.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/EP2016/054905 | Mar 2016 | US |
| Child | 15701879 | US |
