Patent Application
20250172029
This application claims the benefit of priority to Taiwan Patent Application No. 112145473, filed on Nov. 24, 2023. The entire content of the above identified application is incorporated herein by reference.
Some references, which may include patents, patent applications and various publications, may be cited and discussed in the description of this disclosure. The citation and/or discussion of such references is provided merely to clarify the description of the present disclosure and is not an admission that any such reference is “prior art” to the disclosure described herein. All references cited and discussed in this specification are incorporated herein by reference in their entireties and to the same extent as if each reference was individually incorporated by reference.
The present disclosure relates to a safety mechanism for comparing sensing signals, and more particularly to a mechanism that is disposed inside a light quantity sensor of an automatic passing apparatus and is applied to comparing and determining differences between an electrical signal stored in a processing unit and a changing electrical signal, so as to provide a safety sensing device that keeps door leaves open and prevents the door leaves from closing on people.
An automatic passing apparatus is generally used in places where personnel or carriers frequently enter, leave, or approach, such as storehouses, passage partitions, banks, shopping malls, and offices. Through a sensing device disposed on a top portion of a door, the approaching, entering, or leaving of the personnel or the carriers can be sensed, and a motor is driven to enable opening of a door leaf or a rolling door of the automatic passing apparatus. After the personnel or the carriers pass through, the sensing device no longer senses their presence, and the door leaf or the rolling door of the automatic passing apparatus returns to being closed. A light sensing device is usually used for the sensing of the automatic passing apparatus, and an existing infrared sensing device is often used for dynamic sensing. When a sensed body enters a light field area, such sensing device is not capable of sensing the static sensed body. As a result, the door leaf cannot remain open, and closing of the door leaf may cause the danger of collision with the static sensed body. In the related art, a control module of the automatic passing apparatus does not have the function of storing and comparing door leaf electrical signals generated by reflection light of a door leaf light field. As such, when the sensed body is located at a position where the door leaf moves to be closed, the control module cannot guarantee that the door leaf is maintained in an opened state or that closing is performed in a safe manner.
In response to the above-referenced technical inadequacies, the present disclosure provides a safety mechanism for comparing sensing signals. Regardless of a dynamic or a static condition, the safety mechanism of the present disclosure (which is disposed in a light quantity sensor) can detect and determine in an accurate manner, such that a door leaf of an automatic passing apparatus can be kept in an opened position and have a safe and accurate closing operation.
In order to solve the above-mentioned problems, one of the technical aspects adopted by the present disclosure is to provide a safety mechanism for comparing sensing signals which is disposed in an automatic passing apparatus. The safety mechanism includes: at least one emitting convex lens group, at least one light emitting module, at least one receiving convex lens group, at least one light receiving module, and at least one control module. The at least one emitting convex lens group includes one or more emitting convex lens. The at least one light emitting module includes one or more light emitting component. Each of the light emitting components is configured to project light to the respective emitting convex lens by a geometrical optics approach, so as to form a corresponding light field area and a corresponding luminous flux. The at least one receiving convex lens group includes one or more receiving convex lens. The at least one light receiving module includes one or more light receiving component and is a photoelectric conversion component. The luminous flux of the light field area is configured to reflect a corresponding one of reflection light depending on an environment, and is configured to reflect the corresponding one of the reflection light to the respective one or more light receiving components through the at least one receiving convex lens group by the geometrical optics approach, and is configured to convert the reflection light into a corresponding electrical signal. The at least one light receiving module is electrically connected to the at least one control module. The at least one control module includes one or more processing unit, and the processing unit includes an electronic circuit, a micro-controller (MCU), a memory (RAM), etc. The corresponding electrical signal converted by the light receiving component is input and stored in the processing unit. When a sensed body is absent from the light field area, the at least one light receiving module is configured to output a static first environment electrical signal, and the first environmental electrical signal is stored to the processing unit of the at least one control module for comparison and reference. When the sensed body is present in the light field area, the at least one light receiving module is configured to generate a first changing electrical signal regardless of whether the sensed body is in a dynamic or a static state, and the first changing electrical signal is compared with the stored first environment electrical signal in the processing unit. In response to a waveform of the first changing electrical signal being different from a waveform of the first environment electrical signal, the at least one control module is configured to enable the automatic passing apparatus to be in an opened state. A door leaf light emitting module and a door leaf light receiving module are configured to correspondingly project and sense a moving position of a door leaf of the automatic passing apparatus, so as to form a luminous flux of a door leaf light field area. When the door leaf is fully opened and the sensed body is absent from the door leaf light field area, the door leaf light receiving module is configured to generate a static second electrical signal of the door leaf, and the second static electrical signal is additionally stored in the processing unit of the at least one control module for comparison and reference. When the door leaf is fully opened and the sensed body is present in the door leaf light field area, the door leaf light receiving module is configured to generate a second changing electrical signal of the door leaf regardless of whether the sensed body is in the dynamic or the static state, and the second changing electrical signal is compared with the stored second static electrical signal in the processing unit. In response to a waveform of the second changing electrical signal being different from a waveform of the second static electrical signal, the at least one control module is configured to enable the automatic passing apparatus to be in the opened state. A closing operation of the door leaf of the automatic passing apparatus is performed at a constant velocity, such that the door leaf reflects reflection light with regular changing fluctuations within an operation area of the door leaf; wherein the door leaf light receiving module is configured to output a third door leaf electrical signal, and the third door leaf electrical signal is additionally stored in the processing unit of the at least one control module. The third door leaf electrical signal generated from each closing operation of the door leaf is compared with the stored third door leaf electrical signal in the processing unit, and the processing unit of the at least one control module is configured to enable the door leaf of the automatic passing apparatus to complete a closing action when a same regularly changing fluctuation is detected.
In one of the possible or preferred embodiments, the number of the light emitting component is plural, and the light emitting components are electrically connected to a first circuit board. A quantity of the light receiving component is plural, and the light receiving components are electrically connected to a second circuit board. The light receiving components are electrically connected to the at least one control module through the second circuit board.
In one of the possible or preferred embodiments, the at least one light emitting module is correspondingly disposed at a rear side of the at least one emitting convex lens group, and light emitted by the light emitting component is projected to a passing environment through the emitting convex lens, so as to form the light field area corresponding to the luminous flux. The at least one light receiving module is correspondingly disposed at a rear side of the at least one receiving convex lens group, and the light reflected back by the luminous flux in the light field area is reflected to the light receiving component through the receiving convex lens.
In one of the possible or preferred embodiments, the emitting convex lens and the receiving convex lens are each a Fresnel lens.
In one of the possible or preferred embodiments, the luminous flux of the light field area reflects static reflection light when the sensed body is not in the light field area, and the static reflection light is converted into the first static electrical signal and is stored in a database of the processing unit for comparison. Each reflection light of the luminous flux of the light field area correspondingly represents one of various states of the sensed body, and the states of the sensed body include the dynamic state and the static state.
In one of the possible or preferred embodiments, a database of the processing unit stores the data of various door leaf electrical signals converted from the reflection light of the luminous flux in the door leaf light field area as the door leaf of the automatic passing apparatus is in a fully-opened state, a fully-closed state, and a moving state for comparison.
In one of the possible or preferred embodiments, a database of the processing unit stores various electrical signals for comparing a variation of the reflection light of the luminous flux in the light field area. Each type of the variation of the reflection light of the luminous flux in the light field area correspondingly represents various states of the sensed body, and the states of the sensed body include the dynamic state and the static state.
In one of the possible or preferred embodiments, the at least one light emitting module includes at least one visible light emitting module, and the at least one visible light emitting module has one or more visible light emitting component and one or more visible light emitting convex lens. Visible light is emitted by the at least one visible light emitting module by the geometrical optics approach to generate at least one visible light projection point. The at least one visible light emitting module is a laser emitting module. A laser emitting component and the visible light emitting convex lens integrally cover an apparatus, and emitting at least one laser projection point. The visible light module is configured to correspondingly project on a position at an inner side of a front edge of the light field area, and is configured to indicate relative positions of the light field area and the automatic passing apparatus.
In order to solve the above-mentioned problems, another one of the technical aspects adopted by the present disclosure is to provide a safety mechanism for comparing sensing signals which is disposed in a light quantity sensor of an automatic passing apparatus. The safety mechanism includes: at least one emitting convex lens group, at least one light emitting module, at least one receiving convex lens group, at least one light receiving module, and at least one control module. The at least one emitting convex lens group includes one or more emitting convex lens. The at least one light emitting module includes one or more light emitting component, and each of the light emitting components is configured to project light to the respective emitting convex lens by a geometrical optics approach, so as to form a corresponding light field area and a corresponding luminous flux. The at least one receiving convex lens group includes one or more receiving convex lens. The at least one light receiving module includes one or more light receiving components and is a photoelectric conversion component. The luminous flux of the light field area is configured to reflect a corresponding one of reflection light depending on an environment, and is configured to reflect to the respective light receiving component through the at least one receiving convex lens group by the geometrical optics approach, and is configured to convert the reflection light into a corresponding electrical signal. The at least one light receiving module is electrically connected to the at least one control module. The at least one control module includes a processing unit, and the processing unit includes an electronic circuit, a micro-controller (MCU), a memory (RAM), etc. The corresponding electrical signal converted by the light receiving component is input and stored in the processing unit. When a sensed body is absent from the light field area, the at least one light receiving module is configured to generate a first environment electrical signal, and the first environmental electrical signal is stored in the processing unit of the at least one control module for comparison and reference. When the sensed body is present in the light field area, the at least one light receiving module is configured to generate a first changing electrical signal regardless of whether the sensed body is in a dynamic or a static state, and the first changing electrical signal is compared with the first environment electrical signal that is stored in the processing unit. In response to a waveform of the first changing electrical signal being different from a waveform of the first environment electrical signal, the at least one control module is configured to enable the automatic passing apparatus to be in an opened state.
In order to solve the above-mentioned problems, yet another one of the technical aspects adopted by the present disclosure is to provide a safety mechanism for comparing sensing signals which is disposed in a light quantity sensor of an automatic passing apparatus. The safety mechanism includes: at least one emitting convex lens group, at least one light emitting module, at least one receiving convex lens group, at least one light receiving module, and at least one control module. The at least one emitting convex lens group includes one or more emitting convex lens. The at least one light emitting module includes one or more light emitting components. The light emitting component is configured to project light to the respective emitting convex lens by the geometrical optics approach, so as to form a corresponding light field area and a corresponding luminous flux. The at least one receiving convex lens group includes one or more receiving convex lens. The at least one light receiving module includes a light receiving component and is a photoelectric conversion component. The luminous flux of the light field area is configured to reflect a corresponding one of reflection light depending on an environment, and is configured to reflect to the respective light receiving component through the at least one receiving convex lens group by the geometrical optics approach, and is configured to convert the reflection light into a corresponding electrical signal. The at least one light receiving module is electrically connected to the at least one control module. The at least one control module includes at least one processing unit, and the processing unit includes an electronic circuit, a micro-controller (MCU), a memory (RAM), etc. The corresponding electrical signal converted by the light receiving component is input and stored in the processing unit. A door leaf light emitting module and a door leaf light receiving module are configured to correspondingly project and sense a moving position of a door leaf of the automatic passing apparatus, so as to form a luminous flux of a door leaf light field area. When the door leaf is fully opened and the sensed body is absent from the door leaf light field area, the door leaf light receiving module is configured to generate a second static electrical signal of the door leaf, and the second static electrical signal is additionally stored in the processing unit of the at least one control module for comparison and reference. When the door leaf is fully opened and the sensed body is present in the door leaf light field area, the door leaf light receiving module is configured to generate a second changing electrical signal of the door leaf regardless of whether the sensed body is in the dynamic state or the static state, and the second changing electrical signal is compared with the stored second static electrical signal in the processing unit. In response to a waveform of the second changing electrical signal being different from a waveform of the second static electrical signal, the at least one control module is configured to enable the automatic passing apparatus to be in the opened state. A closing operation of the door leaf of the automatic passing apparatus is performed at a constant velocity, such that the door leaf reflects a reflection light with regular variations within an operation area of the door leaf. The door leaf light receiving module is configured to output a third door leaf electrical signal, and the third door leaf electrical signal is additionally stored in the processing unit of the at least one control module. The third door leaf electrical signal generated from closing operation of the door leaf is compared with the stored door leaf electrical signal in the processing unit. The processing unit of the at least one control module is configured to enable the door leaf of the automatic passing apparatus to complete a closing action when a same regularly changing fluctuation is detected.
Therefore, the safety mechanism for comparing the sensing signals provided by the present disclosure includes at least one light emitting module, at least one emitting convex lens group, at least one light receiving module, at least one receiving convex lens group, and at least one control module. The at least one light emitting module includes one or more light emitting component. The light emitting component is configured to emit light, and the light is projected through an emitting convex lens, so as to form a light field area and a corresponding luminous flux in a passing environment. The at least one light receiving module includes one or more light receiving component, and the light receiving component is configured to receive reflection light in the light field area through a receiving convex lens. The at least one control module includes a processing unit, and the light receiving component receives and converts the reflection light in the light field area into electrical signals for transmission to the processing unit. By using change of the reflection light in the light field area, whether or not a sensed body is present can be determined, and control over switching on and off of the automatic passing apparatus can thus be provided. Hence, in the present disclosure, light field variations of the light field area are utilized to determine whether or not the sensed body (such as personnel or an object) is present. Regardless of a static or a dynamic condition, detection and determination can be performed in an accurate manner, thereby allowing a safe and accurate closing operation of a door leaf of the automatic passing apparatus.
Furthermore, the light field area of the present disclosure is within an operating path area of the door leaf of the automatic passing apparatus. When the door leaf is fully opened and no sensed body is present in a door leaf light field area, a door leaf receiving module will generate a second static electrical signal of the door leaf, and the second static electrical signal is further stored in the processing unit of the at least one control module for comparison and reference. Later, when the door leaf is fully opened and the sensed body is present in the door leaf light field, a second changing electrical signal will be generated regardless of a dynamic or a static state. By comparing the difference between these two signals, the at least one control module enables the automatic passing apparatus to be kept in an opened state. At the same time, since a closing operation of the door leaf is performed at a constant velocity, reflection light with regular variations is generated and converted into a third door leaf electrical signal. The third door leaf electrical signal is stored in the processing unit of the at least one control module. Later, the third door leaf electrical signal generated from each closing operation of the door leaf will be compared with the stored third door leaf electrical signal, and the at least one control module enables the door leaf of the automatic passing apparatus to complete a safe closing action when a same regularly changing fluctuation is detected between said two door leaf electrical signals.
These and other aspects of the present disclosure will become apparent from the following description of the embodiment taken in conjunction with the following drawings and their captions, although variations and modifications therein may be affected without departing from the spirit and scope of the novel concepts of the disclosure.
The described embodiments may be better understood by reference to the following description and the accompanying drawings, in which:
The present disclosure is more particularly described in the following examples that are intended as illustrative only since numerous modifications and variations therein will be apparent to those skilled in the art. Like numbers in the drawings indicate like components throughout the views. As used in the description herein and throughout the claims that follow, unless the context clearly dictates otherwise, the meaning of “a,” “an” and “the” includes plural reference, and the meaning of “in” includes “in” and “on.” Titles or subtitles can be used herein for the convenience of a reader, which shall have no influence on the scope of the present disclosure.
The terms used herein generally have their ordinary meanings in the art. In the case of conflict, the present document, including any definitions given herein, will prevail. The same thing can be expressed in more than one way. Alternative language and synonyms can be used for any term(s) discussed herein, and no special significance is to be placed upon whether a term is elaborated or discussed herein. A recital of one or more synonyms does not exclude the use of other synonyms. The use of examples anywhere in this specification including examples of any terms is illustrative only, and in no way limits the scope and meaning of the present disclosure or of any exemplified term. Likewise, the present disclosure is not limited to various embodiments given herein. Numbering terms such as “first,” “second” or “third” can be used to describe various components, signals or the like, which are for distinguishing one component/signal from another one only, and are not intended to, nor should be construed to impose any substantive limitations on the components, signals or the like.
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Reflection light beams of multiple ones of the light field area 300 are converted into electrical signals and stored in a memory database of the processing unit 31 for comparison. The database is pre-stored with states of the sensed body (such as personnel or an object) that represent the different light field areas 300, and each light field area 300 can correspondingly represent one of various states of the sensed body (such as personnel or an object). The states of the sensed body includes a dynamic state and a static state of the sensed body (such as personnel or an object), which are used to determine whether or not the sensed body (such as personnel or an object) enters the light field area.
If no sensed body (such as personnel or an object) enters the light field area 300, a static first electrical signal is generated and stored in the processing unit 31 of the control unit 3, and then the variation of the reflection light in the light field area 300 can be utilized. If the sensed body enters the light field area 300 (whether dynamically or statically), changing or fluctuated reflection light will be generated, and will be converted into a changing electrical signal by the light receiving component 21. The electrical signal is input into the processing unit 31 of the control module 3, and is compared with the stored static first electrical signal, so as to provide the control of keeping the automatic passing apparatus opened or closed. As stated above, if a foreign sensed body is static in the light field area 300, changing static reflection light and a changing static first electrical signal will also be generated, and the door leaf can be kept in the opened state by the determination of the processing unit 31 of the control module 3, so as to provide the protection function of preventing the door leaf of the automatic passing apparatus from closing on a person. Therefore, in the present disclosure, the variation of the reflection light in the light field area 300 can be used to determine whether or not a sensed body (such as personnel or an object) enters the light field area regardless of whether the sensed body is in the dynamic state or the static state.
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In conclusion, the safety mechanism for comparing the sensing signals provided by the present disclosure includes at least one light emitting module, at least one light receiving module, and a control module. The light emitting module includes one or more light emitting component, and the light emitting component is configured to emit light and form a light field area and a corresponding luminous flux in a passing path of an automatic passing apparatus by a geometrical optics approach. The control module includes a processing unit. After the light receiving component receives reflection light reflected back in the light field area, the reflection light is converted into an electrical signal and is sent to the processing unit. By using variation of the reflection light in the light field area, the processing unit is configured to determine whether or not a sensed body enters the light field area, so as to provide control of opening and closing of the automatic passing apparatus. Accordingly, in the present disclosure, the variation of the reflection light in the light field area is utilized for accurate detection and determination. Even if the sensed body is in a static state, a door leaf can still be kept in an opened position, such that a safe and reliable closing operation of the door leaf can be ensured, and an improved safety protection effect can be achieved.
Furthermore, the light field area of the present disclosure can be located in a door leaf operating path of the automatic passing apparatus. By using the variation of the reflection light in the light field area, whether or not the sensed body enters the door leaf operating path of the automatic passing apparatus can be determined. In addition, whether the sensed body in the door leaf operating path of the automatic passing apparatus is the automatic passing apparatus itself, personnel, or an object can also be determined, so as to provide safety light anti-pinch protection function.
Furthermore, the light field area of the present disclosure can be located in an operating path of the automatic passing apparatus. A closing operation of the door leaf is performed at a constant velocity, such that door leaf reflection light with regular variations and a third door leaf electrical signal are generated and stored in the processing unit of the control module. Later, the third door leaf electrical signal generated in each closed state of the door leaf is input into the processing unit, and is compared with the stored third door leaf electrical signal mentioned above. If the two door leaf electrical signals have a same regularly changing fluctuation, the control module will command the door leaf of the automatic passing apparatus to complete a closing action.
The foregoing description of the exemplary embodiments of the disclosure has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching.
The embodiments were chosen and described in order to explain the principles of the disclosure and their practical application so as to enable others skilled in the art to utilize the disclosure and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those skilled in the art to which the present disclosure pertains without departing from its spirit and scope.
| Number | Date | Country | Kind |
|---|---|---|---|
| 112145473 | Nov 2023 | TW | national |
