Detection signal comparison security mechanism

Abstract

To provide a control signal for maintaining an open state or a closed state of an automatic passage device, or a protective function for preventing a door leaf from being pinched by the automatic passage device.SOLUTION: A detection signal comparison security mechanism installed inside a light sensor of the automatic passage device comprises: a light emitting module; a light emitting-side convex lens set; a light receiving module; a light receiving-side convex lens set; and a control module. The light emitting module forms a light field range in a passing environment, and can generate a corresponding luminous flux. The light receiving module receives reflected light within the light field range, and makes a conversion to a static first electrical signal by a photoelectric conversion unit (for example, an infrared sensor LED). Then, if a subject enters the light field range, whether it be static or dynamic, the static first electrical signal fluctuating with or different from the reflected light in the light field range changes and is mutually compared with the saved static first electrical signal.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a detection signal comparison security mechanism, particularly to a mechanism installed inside an optical sensor of an automatic passage device. The mechanism determines the difference between the electrical signal stored in the processing unit and the fluctuating electrical signal, thereby providing a safety sensor device that keeps the door leaf open and prevents pinching caused by the closing movement of the door leaf. [Background technology]

[0002] Automatic passage devices are commonly used where people or carrier devices need to enter, exit, or approach frequently (e.g., warehouses, passageways, banks, commercial facilities, or businesses, etc.), and a sensor device installed on the top of the door detects the approach, entry, or exit of a person or carrier device, drives a motor to open the door leaf or automatic roll-up door of the automatic passage device, and when the person or carrier device leaves, the sensor stops responding and the door leaf or automatic roll-up door of the automatic passage device closes. Optical sensor devices are often used to detect automatic passage devices, but current infrared sensor devices are often used for dynamic detection, but when an object enters the light field range, the sensor cannot be used to statically detect the object, so the door leaf cannot be kept open, and therefore there is a risk that the closing action of the door leaf will collide with the static object. In addition, in the prior art, the control module of the automatic passage device does not have the function of storing and comparing the electrical signals of the door leaf that generate the reflected light of the door leaf light field, so that when the object is in the position for the door leaf closing action, the control module cannot safely keep the door leaf open or closed. Summary of the Invention [Problem to be solved by the invention]

[0003] The technical problem that the present invention aims to solve is to address the shortcomings of existing technology and provide a detection signal comparison security mechanism that can accurately detect and judge by a comparison mechanism inside an optical sensor to which the present technology is applied, regardless of whether the situation is static or dynamic, and can hold the door leaf of an automatic passage device in an open position and perform a safe and accurate closing operation. [Means for solving the problem]

[0004] In order to solve the above technical problems, the present invention provides a detection signal comparison security mechanism installed in an automatic passage device. The detection signal comparison security mechanism includes at least one light emitting module, at least one light emitting convex lens set, at least one light receiving module, at least one light receiving convex lens set, and at least one control module. The light emitting convex lens set includes at least one light emitting convex lens. The light emitting module includes at least one light emitting element, which projects light rays to each light emitting convex lens, which is projected in a geometrical optics manner to form a corresponding light field range and a corresponding light flux. The light receiving convex lens set includes at least one light receiving convex lens. The light receiving module includes at least one light receiving element which is a photoelectric conversion element. The light flux in the light field range represents reflected light according to the environmental reflection, which is reflected to each light receiving element through the light receiving convex lens set in a geometrical optics manner, and the reflected light is converted into a corresponding electrical signal. The light receiving module is electrically connected to the control module, and the control module includes at least one processing unit, which may include an electronic circuit, a microcontroller (MCU), and a memory (RAM), and the corresponding electrical signal converted by the light receiving element may be input or stored in the processing unit. When no object is present in the light field range, the light receiving module outputs a static first environmental electrical signal, which is stored in the processing unit of the control module for comparison and reference. When an object is present in the light field range, whether the object is moving or stationary, the light receiving module generates a first fluctuating electrical signal, which is compared with the stored first environmental electrical signal in the processing unit. When the waveform of the first fluctuating electrical signal is different from the waveform of the first environmental electrical signal, the control module can maintain the automatic passage device in an open state. The door leaf light emitting module and the door leaf light receiving module emit and sense light in response to the position of the door leaf of the automatic passage device moving, forming a light beam in another door leaf light field range.When the door leaf is fully open and no object is present within the door leaf light field range, the door leaf light receiving module generates a second static electrical signal of the door leaf, which is separately stored in the processing unit of the control module for comparison and reference. Then, when the door leaf is fully open and an object enters the door leaf light field, whether in a dynamic or static state, the door leaf light receiving module generates a second fluctuating electrical signal of the door leaf, which is separately compared with the stored second static electrical signal in the processing unit. When the waveform of the second fluctuating electrical signal is different from the waveform of the second static electrical signal, the control module can maintain the automatic passage device in an open state. When the door leaf of the automatic passage device moves at a speed such as a closing motion, the door leaf reflects a regularly fluctuating reflected light within the door leaf motion range, and the door leaf light receiving module outputs a third door leaf electrical signal, which is separately stored in the processing unit of the control module. Thereafter, the third door leaf electrical signal generated each time a closing operation is performed is compared with the third door leaf electrical signal stored in the processing unit, and if there is the same regular variation, the processing unit of the control module can complete the closing operation of the door leaf of the automatic passage device.

[0005] In order to solve the above technical problems, the present invention further provides a detection signal comparison security mechanism, which is installed in an automatic passage device. The detection signal comparison security mechanism includes at least one light emitting module, at least one light emitting convex lens set, at least one light receiving module, at least one light receiving convex lens set, and at least one control module. The light emitting convex lens set includes at least one light emitting convex lens. The light emitting module includes at least one light emitting element, which emits light toward each light emitting convex lens, and is emitted according to a method of geometrical optics to form a corresponding light field range and a corresponding light flux. The light receiving convex lens set includes at least one light receiving convex lens. The light receiving module includes at least one light receiving element, which is a photoelectric conversion element. The light flux in the light field range corresponds to the reflected light from the environment, and is reflected to each light receiving element through the light receiving convex lens set according to a method of geometrical optics, and the reflected light is converted into a corresponding electrical signal. The light receiving module is electrically connected to the control module, and the control module includes at least one processing unit, which may include an electronic circuit, a microcontroller (MCU), and a memory (RAM), and the corresponding electrical signal converted by the light receiving element may be input or stored in the processing unit. When no object enters the light field range, the light receiving module outputs a static first environmental electrical signal, which is stored in the processing unit of the control module for comparison and reference. Then, when an object enters the light field range, whether the object is moving or stationary, the light receiving module generates a first fluctuating electrical signal, which is compared with the stored first environmental electrical signal in the processing unit. When the waveform of the first fluctuating electrical signal is different from the waveform of the first environmental electrical signal, the control module may maintain the automatic passage device open.

[0006] In order to solve the above technical problems, the present invention further provides a kind of detection signal comparison security mechanism, which is installed in an automatic passage device. The detection signal comparison security mechanism includes at least one light emitting module, at least one light emitting convex lens set, at least one light receiving module, at least one light receiving convex lens set, and at least one control module. The light emitting convex lens set includes at least one light emitting convex lens. The light emitting module includes at least one light emitting element, and the light emitting element emits light rays to each light emitting convex lens, which are emitted in a geometrical optics manner, forming a corresponding light field range and a corresponding light flux. The light receiving convex lens set includes at least one light receiving convex lens. The light receiving module includes at least one light receiving element, which is a photoelectric conversion element. The light flux in the light field range corresponds to the reflected light from the environment, and is reflected to each light receiving element through the light receiving convex lens set in a geometrical optics manner, and the reflected light is converted into a corresponding electrical signal. The light receiving module is electrically connected to the control module, and the control module includes at least one processing unit, which may include an electronic circuit, a microcontroller (MCU), and a memory (RAM), and the corresponding electrical signal converted by the light receiving element may be input or stored in the processing unit. The door leaf light emitting module and the door leaf light receiving module emit and detect light corresponding to the position of the door leaf of the automatic passage device, and form a light beam in another door leaf light field range. When the door leaf is fully open and no object enters the door leaf light field range, the door leaf light receiving module generates a second static electrical signal of the door leaf, which is separately stored in the processing unit of the control module for comparison and reference. Thereafter, when the door leaf is fully open and an object enters the door leaf light field, whether in a dynamic or static state, the door leaf light receiving module generates a second variable electrical signal of the door leaf, which is separately compared with the stored second static electrical signal in the processing unit.When the waveform of the second fluctuating electric signal is different from the waveform of the second static electric signal, the control module can maintain the automatic passage device in an open state. When the door leaf of the automatic passage device moves at a speed such as a closing operation, the door leaf reflects a regularly fluctuating reflected light within the door leaf operation range, and the door leaf light receiving module outputs a third door leaf electric signal, which is separately stored in the processing unit of the control module. Thereafter, the third door leaf electric signal generated every time a closing operation is performed is compared with the third door leaf electric signal stored in the processing unit, and if the same regular fluctuation is found, the processing unit of the control module can complete the closing operation of the door leaf of the automatic passage device.

[0007] The beneficial effect of the present invention is that the detection signal comparison security mechanism provided includes at least one light emitting module, at least one light emitting convex lens set, at least one light receiving module, at least one light receiving convex lens set, and at least one control module. The light emitting module includes at least one light emitting element, which emits light through the light emitting convex lens to form a light field range in the passing environment and generate a corresponding light flux. The light receiving module includes at least one light receiving element, which receives the reflected light within the light field range through the light receiving convex lens. The control module includes a processing unit, which receives the reflected light within the light field range, converts it into an electrical signal, and transmits it to the processing unit. The change in the reflected light within the light field range is used to determine whether an object has entered, and provides opening and closing control of the automatic passing device. Therefore, the present invention uses the change in light within the light field range to determine whether an object (e.g., a person or an object) has entered, and can accurately detect and judge whether the object is in a static or dynamic situation, and can perform a safe and accurate closing operation of the door leaf of the automatic passing device.

[0008] In addition, the light field range of the present invention can be located within the movement path range of the door leaf of the automatic passage device. When the door leaf is fully open and no object enters the door leaf light field range, the door leaf light receiving module generates a second static electrical signal of the door leaf, which is separately stored in the processing unit of the control module for comparison and reference. Thereafter, when the door leaf is fully open and an object enters the door leaf light field, a second fluctuating electrical signal is generated whether in a dynamic or static state, and the difference between the two is compared with each other. If there is a difference, the control module can maintain the automatic passage device in an open state. In addition, the regularly fluctuating reflected light generated by a constant speed movement such as the closing operation of the door leaf is used, converted into a third door leaf electrical signal, and stored in the processing unit of the control module. Then, the third door leaf electrical signal generated each time in the closing state is compared with the previously stored door leaf electrical signal, and if both door leaf electrical signals have the same regular fluctuation, the processing unit of the control module can safely complete the closing operation of the door leaf of the automatic passage device.

[0009] In order to make the features and technical contents of the present invention more readily apparent, reference is made to the following detailed description of the present invention and the accompanying drawings, which are provided for reference and explanation only and are not intended to limit the scope of the present invention. [Brief description of the drawings]

[0010] [Figure 1] 1 is a three-dimensional exploded view of the overall structure of a detection signal comparison security mechanism according to a first embodiment of the present invention; FIG. [Diagram 2] 1 is an explanatory diagram showing the emission of an infrared optical axis and a visible light optical axis of a detection signal comparison security mechanism according to a first embodiment of the present invention. FIG. [Diagram 3] 1 is an explanatory diagram showing an optical axis of reflected infrared light and a laser emission module of a detection signal comparison security mechanism according to a first embodiment of the present invention; [Figure 4]FIG. 13 is a three-dimensional exploded view of the overall structure of a detection signal comparison security mechanism according to a second embodiment of the present invention, which does not include visible light. [Diagram 5] 11 is an explanatory diagram showing the optical axis of infrared light emitted and the optical axis of reflected light of a detection signal comparison security mechanism of a second embodiment of the present invention. FIG. [Figure 6] 11 is an explanatory diagram showing the emitted optical axis and light field range of a detection signal comparison security mechanism according to a second embodiment of the present invention. FIG. [Figure 7] 1 is an explanatory diagram showing the optical axes and light field range of infrared light and visible light emitted by a detection signal comparison security mechanism according to a first embodiment of the present invention; FIG. [Figure 8] 1 is an explanatory diagram showing the optical axis of reflected light within a light field range of a detection signal comparison security mechanism according to a first embodiment of the present invention. FIG. [Figure 9] 13 is an explanatory diagram showing the optical axes and light field range of infrared light and visible light emitted by a detection signal comparison security mechanism according to a third embodiment of the present invention. FIG. [Figure 10] FIG. 13 is an explanatory diagram showing the optical axis of reflected light within the light field range of a detection signal comparison security mechanism according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The following describes the embodiments disclosed in the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the disclosure of this specification. The present invention can be implemented or applied in other different embodiments. Each detail in this specification can be modified and changed based on various aspects or applications without departing from the spirit of the present invention. In addition, the drawings in the present invention are for simple and schematic illustration only and do not show actual dimensions. In the following embodiments, the technical matters related to the present invention will be further described, but the disclosed contents do not limit the present invention. In addition, the term "or" used in this specification may include any one or more combinations of related items according to actual circumstances.

[0012] Please refer to FIG. 1. The present invention provides a detection signal comparison security mechanism 100, which needs to be installed correspondingly inside the optical sensor 500 (as shown in FIG. 6 to FIG. 10). The size and appearance of the outer shell of the sensor can be designed according to requirements. It should be installed as a sensor device in the passage area of ​​an automatic passage device (for example, an electric automatic door or an electric roll door). In this embodiment, it is installed in the automatic passage device 200 (as shown in FIG. 6 to FIG. 10), and the automatic passage device 200 can be an electric automatic door or an automatic roll door. In this embodiment, it is clear that the door 200 of the automatic passage device is an electric automatic door. The detection signal comparison security mechanism 100 is a mechanism installed inside the optical sensor 500, and is installed on the top of the automatic passage device 200. The detection signal comparison security mechanism 100 includes at least one light emitting module 1-1 and a visible light emitting module 1-2, at least one light receiving module 2, and at least one control module 3. In this embodiment, it is clear that an infrared light emitting module 1-1, a visible light emitting module 1-2, and an infrared light receiving module 2 are provided. The light emitting module 1-1 and the light receiving module 2 are installed at an interval, but the number and positions of the light emitting module 1-1 and the light receiving module 2 are not limited and can be changed as necessary. In addition, the detection signal comparison security mechanism 100 may not include a device related to the visible light emitting module 1-2 (as shown in Figures 4 and 5).

[0013] Please refer to FIG. 4. The light-emitting module 1-1 includes at least one light-emitting element 11. In this embodiment, a plurality of light-emitting elements 11 are installed. These light-emitting elements 11 are electrically connected to a first circuit board 12 to form a modular design. The light-emitting element 11 emits light to form a light field range 300 (shown in FIG. 6) and generate a corresponding light flux. The light field range 300 is emitted to the passage range of the automatic passage device 200, and may be emitted to the passage ranges, such as inside and outside the door of the automatic passage device 200, singly or simultaneously as required.

[0014] Please refer to Fig. 2. In this embodiment, the light emitting module 1-1 is an infrared light emitting module, which together with the visible light emitting module 1-2 emits a visible light emission point 600 (shown in Fig. 7) to clearly indicate the position of the light field range 300 (shown in Fig. 7). As shown in Fig. 2, the one located on the left side is the visible light emitting module 1-2, and the light emitting module 1-1 located in the middle is an infrared light emitting module.

[0015] Please refer to FIG. 2. The light-emitting module 1-1 includes at least one light-emitting element 11. In this embodiment, a plurality of light-emitting elements 11 are installed. These light-emitting elements 11 are electrically connected to a first circuit board 12 to form a modular design. The light-emitting element 11 emits light rays to form a light field range 300 (as shown in FIG. 7) and generates a corresponding light flux. The light field range 300 is located in the door leaf operation path of the automatic passage device 200, and is emitted to the door inside or outside of the automatic passage device 200 alone or simultaneously as needed. Furthermore, the visible light light-emitting module 1-2 includes at least one visible light light-emitting element 13, and the visible light light-emitting element 13 (which may be an LED element or a laser light element) emits a visible light emission point 600 and is located in the door leaf operation path of the automatic passage device 200 (as shown in FIG. 7). In this embodiment, the position of the leading edge of the emitted light field range 300 is synchronously indicated or the leading edge of the light field range 300 is indicated at a position in the door leaf motion path of the automatic passage device 200 .

[0016] Please refer to Figures 3 and 5. The light-receiving module 2 located on the right side includes at least one light-receiving element 21, and in this embodiment, multiple light-receiving elements 21 are installed. These light-receiving elements 21 are electrically connected to a second circuit board 22, forming a modular design. The light-receiving element 21 can receive the reflected light reflected by the light beam within the light field range 300 (as shown in Figure 8), and when an object (such as a person or object) enters, the reflected light of the corresponding light beam will have a corresponding change.

[0017] Please refer to Figures 2 and 5. In this embodiment, each light-emitting module 1-1 is correspondingly installed with a light-emitting convex lens set 4-1 including at least one light-emitting convex lens. The corresponding light-emitting convex lens 41 may be a Fresnel lens. These light-emitting convex lenses 41 are installed in front of the corresponding light-emitting elements 11 according to the requirements of geometrical optics, and the light emitted from these light-emitting elements 11 is projected toward the light-emitting convex lens 41 and projected corresponding to the sensing range of the automatic passage device 200 to form a light field range 300.

[0018] Please refer to FIG. 2. In this embodiment, each visible light emitting module 1-2 is installed corresponding to a visible light emitting side convex lens set 4-2 including at least one visible light emitting side convex lens. The corresponding visible light emitting side convex lens 42 may be a Fresnel lens, and is installed in front of the corresponding visible light emitting element 13 according to the requirements of geometrical optics. The visible light emitted from these visible light emitting elements 13 is projected toward the visible light emitting side convex lens 42. The visible light emitting module 1-2 functions as a laser emitting module 1-3, and the laser emitting element and the visible light emitting side convex lens are integrally packaged (shown in FIG. 3). The visible light emitting module is projected corresponding to a visible light emission point 600 located at the front edge of the light field range 300 (shown in FIG. 7 and FIG. 9).

[0019] Please refer to Figures 3 and 5. In this embodiment, each light-receiving module 2 is installed corresponding to a light-receiving convex lens set 5 including at least one light-receiving convex lens. Through the corresponding light-receiving convex lens 51, the reflected light reflected and returned from within the light field range 300 (shown in Figure 8) is reflected to the light-receiving element 21.

[0020] Please refer to Figures 3 and 5. The light receiving module 2 is electrically connected to the control module 3. The light receiving element 21 can be electrically connected to the control module 3 through the second circuit board 22. The control module 3 includes a processing unit 31, which can include an electronic circuit, a microcontroller (MCU), and a memory (RAM). The light receiving element 21 receives the reflected light of the light beam reflected and returned within the light field range 300, which is converted into an electrical signal by a microcontroller conversion unit (e.g., an infrared sensor LED, etc.) and transmitted to the processing unit 31 of the control module 3. Using the change in the reflected light in the light field range 300, it is possible to determine the presence or absence of a subject (e.g., a person, an object, etc.) and provide control to open and close the door leaf of the automatic passage device 200.

[0021] The reflected light from various light field ranges 300 is converted into electrical signals, which can be stored in a memory database of the processing unit 31 for comparison. The database pre-stores information representing the states of objects (e.g., people, objects, etc.) in different light field ranges 300. Each light field range 300 can indicate the state of one type of object (e.g., people, objects, etc.), and is used to judge the object, including various dynamic and static situations.

[0022] When no object (e.g., a person or object) enters the light field range 300, a static first electrical signal is generated and stored in the processing unit 31 of the control module 3. After that, when an object enters the light field range 300, a fluctuating or wavy reflected light is generated using the fluctuation of the reflected light in the light field range 300, whether static or moving, and the fluctuating or wavy reflected light is converted into a fluctuating electrical signal by the light receiving element 21, input to the processing unit 31 of the control module 3, and compared with the stored static first electrical signal to provide opening and closing control of the automatic passing device. Even when an external object is statically present in the light field range 300, a fluctuating static reflected light and a fluctuating static first electrical signal are generated, and the door can be kept open based on the judgment by the processing unit 31 of the control module 3, providing a protection function to prevent a person from being pinched by the door of the automatic passing device. Therefore, the present invention can use the fluctuation of the reflected light in the light field range 300 to determine whether an object has entered, and can accurately detect and judge whether the object is static or moving.

[0023] Please refer to Figures 4 and 5. In this embodiment, a single light receiving module 2 receives the reflected light reflected back from the light field range 300. In this embodiment, the visible light emitting module is omitted.

[0024] Please refer to Figures 9 and 10. The detection signal comparison security mechanism 100 of the present invention can also provide a safe light anti-pinch protection function. When the light-emitting module 1-1 and the light-receiving module 2 emit light corresponding to the movement range of the door leaf of the automatic passage device, the movement of the closing speed of the door leaf can also be detected, and a third door leaf electrical signal is generated from the regular door leaf reflected light, which is stored in the processing unit 31 of the control module 3. This stored third door leaf electrical signal is compared with the third door leaf electrical signal generated after the closing operation of the door leaf. If there is a third door leaf electrical signal with the same regular reflected light in the closed state, the processing unit 31 of the control module 3 will allow the door leaf of the automatic passage device to complete the closing operation.

[0025] 9 and 10, the door leaf light emitting module 1-1 and the door leaf light receiving module 2 emit and detect only in correspondence with the door leaf movement path 400 of the automatic passage device, forming a light beam of a light field of another door leaf movement range. When the door leaf is fully open and no object enters the door leaf movement path 400, the door leaf light receiving module 2 generates a second static electrical signal, which is separately stored in the processing unit 31 of the control module 3 as a comparison standard. After that, when the door leaf is fully open and an object enters the light field of the door leaf movement path 400, whether dynamic or static, the door leaf light receiving module 2 generates a second fluctuating electrical signal, and both second electrical signals are separately compared in the processing unit 31. If the waveforms are different, the control module 3 makes the automatic passage device 200 maintain the open state. During the closing uniform speed movement, the door leaf of the automatic passage device 200 reflects the reflected light that fluctuates regularly in the door leaf movement path 400, and the door leaf light receiving module 2 outputs a third door leaf electrical signal, which is separately stored in the processing unit 31 of the control module 3. Then, the third door leaf electrical signal generated by each closing movement is compared with the third door leaf electrical signal stored in the processing unit 31, and if both have the same regular fluctuation, the processing unit 31 of the control module 3 allows the door leaf in the door leaf movement path 400 to complete the closing operation.

[0026] [Beneficial Effects of the Embodiments] The beneficial effect of the present invention is that the detection signal comparison security mechanism provided by the present invention includes at least one light emitting module, at least one light receiving module, and one control module. The light emitting module includes at least one light emitting element, which emits light to form a light field range in the passage path of the automatic passage device and generate a corresponding light flux. The control module includes a processing unit, and after the light receiving element receives the reflected light in the light field range, it converts it into an electrical signal and transmits it to the processing unit, and the processing unit uses the change in the reflected light in the light field range to determine the presence or absence of a sensor object, and provides opening and closing control of the automatic passage device. Therefore, the present invention can accurately detect and determine the presence or absence of a sensor object by using the change in the reflected light in the light field range, and the door leaf can be kept open even if a static sensor object exists, so that the door leaf can perform a closing operation safely and reliably, providing a better safety protection effect for passers-by.

[0027] In addition, the light field range of the present invention is located in the motion path of the door leaf of the automatic passing device. By utilizing the fluctuation of the reflected light in this light field range, it is possible to determine whether an object has entered the motion path of the door leaf of the automatic passing device. It is then possible to identify whether the object existing in the motion path of the door leaf of the automatic passing device is the automatic passing device itself, or a person or object. This provides a pinch prevention function using a safety light beam.

[0028] The light field range according to the present invention is located in the movement path of the automatic passage device, and the uniform speed movement accompanying the closing of the door leaf generates periodically fluctuating reflected light of the door leaf and a third door leaf electrical signal, which are stored in the processing unit of the control module. The third door leaf electrical signal generated for each closing state is then input to the processing unit and compared with the stored third door leaf electrical signal. If the same periodic fluctuation exists in both door leaf electrical signals, the processing unit of the control module instructs the door leaf of the automatic passage device to complete the closing operation.

[0029] The above disclosure is merely a preferred embodiment of the present invention, and does not limit the scope of the claims of the present invention. Therefore, all equivalent technical modifications made based on the contents of the specification and accompanying drawings of the present invention shall be included in the scope of the claims of the present invention. [Explanation of symbols]

[0030] 1-1 Light emitting module 11 Light emitting element 12 First circuit board 1-2 Visible light emitting module 13 Visible light emitting device 14 Visible light circuit board 1-3 Laser emission module 2. Receiver module 21 Photodetector 22 Second Circuit Board 3. Control Module 31 Processing Unit 4-1 Light-emitting side convex lens set 41 Light-emitting side convex lens 4-2 Visible light emitting side convex lens set 42 Visible light emitting side convex lens 5. Receiving side convex lens set 51 Light receiving side convex lens 100 Detection signal comparison security mechanism 200 Automatic passing device 300 Light Field Range 400 Door leaf movement path 500 Light Sensor 600 Visible light emission point

Claims

1. At least one light-emitting side convex lens set including at least one light-emitting side convex lens; At least one light-emitting module including at least one light-emitting element that emits light rays toward each of the light-emitting side convex lenses in a geometrical optics manner to form a corresponding light field range and a corresponding luminous flux; At least one receiving-side convex lens set, including at least one receiving-side convex lens, which further correspondingly reflects the reflected light of the light beam in the light field range reflected by the environment through a method of geometric optics; At least one light-receiving module, including at least one light-receiving element that is a photoelectric conversion element for receiving light reflected by the light-receiving convex lens set and converting the reflected light into a corresponding electrical signal; At least one control module, electrically connected to the light-receiving module, includes at least one processing unit including an electronic circuit, a microcontroller and a memory, in which the corresponding electrical signal converted by the light-receiving element is input and stored; A detection signal comparison security mechanism installed inside an optical sensor of an automatic passage device, comprising: When no object is present within the light field range, the light receiving module outputs a static first environmental electrical signal, and stores the static first environmental electrical signal in the processing unit of the control module for comparison and reference; when the object is present within the light field range, whether the object is moving or stationary, the light receiving module generates a first fluctuating electrical signal, and the processing unit compares the first fluctuating electrical signal with the stored first environmental electrical signal; and when the waveform of the first fluctuating electrical signal is different from the waveform of the first environmental electrical signal, the control module maintains the automatic passage device in a door leaf open state; The light emitting module and the light receiving module correspondingly emit and sense light at a position where the door leaf of the automatic passage device moves, and form a light beam related to a door leaf light field range; when the door leaf is fully open and no object is present in the door leaf light field range, the light receiving module generates a second static electrical signal related to the door leaf, and stores the second static electrical signal in the processing unit of the control module for comparison and reference; when the door leaf is fully open and the object is present in the door leaf light field range, whether dynamic or static, the light receiving module generates a second fluctuating electrical signal related to the door leaf, and the processing unit compares the second fluctuating electrical signal with the stored second static electrical signal; when the waveform of the second fluctuating electrical signal is different from the waveform of the second static electrical signal, the control module maintains the door leaf of the automatic passage device in an open state; When the door leaf of the automatic passage device performs a closing movement and the reflected light fluctuates regularly within the movement range of the door leaf, the light receiving module outputs a third door leaf electrical signal and stores it in the processing unit of the control module. The processing unit compares the third door leaf electrical signal generated every time the door leaf performs a closing movement with the third door leaf electrical signal already stored. If there is a waveform of similar regular fluctuation, the processing unit of the control module completes the closing movement of the door leaf of the automatic passage device. A detection signal comparison security mechanism comprising:

2. At least one light-emitting side convex lens set including at least one light-emitting side convex lens; At least one light-emitting module including at least one light-emitting element that emits light rays toward each of the light-emitting side convex lenses in a geometrical optics manner to form a corresponding light field range and a corresponding luminous flux; At least one receiving-side convex lens set, including at least one receiving-side convex lens, which further correspondingly reflects the reflected light of the light beam in the light field range reflected by the environment through a method of geometric optics; At least one light-receiving module, including at least one light-receiving element that is a photoelectric conversion element for receiving light reflected by the light-receiving convex lens set and converting the reflected light into a corresponding electrical signal; At least one control module, electrically connected to the light-receiving module, includes at least one processing unit including an electronic circuit, a microcontroller and a memory, in which the corresponding electrical signal converted by the light-receiving element is input and stored; A detection signal comparison security mechanism installed inside an optical sensor of an automatic passage device, comprising: When no object is present within the light field range, the light receiving module outputs a static first environmental electrical signal, and stores the first environmental electrical signal in the processing unit of the control module for comparison and reference; when the object is present within the light field range, whether the object is moving or static, the light receiving module generates a first fluctuating electrical signal, and the processing unit compares the first fluctuating electrical signal with the stored first environmental electrical signal; and when the waveform of the first fluctuating electrical signal is different from the waveform of the first environmental electrical signal, the control module maintains the door leaf of the automatic passage device in an open state. A detection signal comparison security mechanism comprising:

3. At least one light-emitting side convex lens set including at least one light-emitting side convex lens; At least one light-emitting module including at least one light-emitting element that emits light rays toward each of the light-emitting side convex lenses in a geometrical optics manner to form a corresponding light field range and a corresponding luminous flux; At least one receiving-side convex lens set, including at least one receiving-side convex lens, which further correspondingly reflects the reflected light of the light beam in the light field range reflected by the environment through a method of geometric optics; At least one light-receiving module, including at least one light-receiving element that is a photoelectric conversion element for receiving light reflected by the light-receiving convex lens set and converting the reflected light into a corresponding electrical signal; At least one control module, electrically connected to the light-receiving module, includes at least one processing unit including an electronic circuit, a microcontroller and a memory, in which the corresponding electrical signal converted by the light-receiving element is input and stored; A detection signal comparison security mechanism installed inside an optical sensor of an automatic passage device, comprising: The light emitting module and the light receiving module emit and sense light in accordance with the position of the door leaf of the automatic passage device, and form a light beam in a door leaf light field range. When the door leaf is fully open and no object is present in the door leaf light field range, the light receiving module generates a second static electrical signal of the door leaf, which is stored in the processing unit of the control module for comparison and reference. When the door leaf is fully open and an object is present in the door leaf light field, whether dynamic or static, the light receiving module generates a second fluctuating electrical signal of the door leaf, and the processing unit compares the second fluctuating electrical signal with the stored second static electrical signal. and when the waveform of the second fluctuating electric signal is different from the waveform of the second static electric signal, the control module maintains the door leaf of the automatic passage device in an open state; when the door leaf of the automatic passage device closes and reflects light that changes regularly within the door leaf movement range, the light receiving module outputs a third door leaf electric signal and stores it in the processing unit of the control module; then, the processing unit compares the third door leaf electric signal generated at each closing movement with the stored third door leaf electric signal, and when there is a wave motion with a similar regular change, the processing unit of the control module completes the closing movement of the door leaf of the automatic passage device. A detection signal comparison security mechanism comprising:

4. The detection signal comparison security mechanism of any one of claims 1 to 3, wherein the light beam in the light field range is reflected as static reflected light when the subject is not present, and is converted into a static first electrical signal and stored in a database of the processing unit for comparison, and the reflected light by the light beam in the light field range each represents a state of the corresponding subject, and the state of the subject includes a dynamic and static state of the subject.

5. The detection signal comparison security mechanism according to any one of claims 1 to 3, wherein the database of the processing unit is capable of converting and storing the reflected light of the light beam in the light field range of the door leaf when the door leaf of the automatic passage device is in a fully open state, a fully closed state, or a moving state, into corresponding door leaf electrical signal data for comparison.

6. The detection signal comparison security mechanism of any one of claims 1 to 3, wherein the database of the processing unit stores a plurality of electrical signals used to compare changes in reflected light due to a light flux in the light field range, and the changes in reflected light in the light field range respectively correspond to the states of the subject, including the dynamic and static states of the subject.

7. The detection signal comparison security mechanism of any one of claims 1 to 3, wherein the light emitting module includes at least one visible light emitting module, the visible light emitting module includes at least one visible light emitting element and at least one visible light emitting side convex lens, the visible light emitting module emits visible light using a geometric optics method and generates at least one visible light emission point, the visible light emitting module is a laser emitting module, which is integrally packaged and arranged, and includes a laser emitting element and a visible light emitting side convex lens that emit at least one laser light emission point, and the visible light emitting module is emitted corresponding to a position inside the leading edge of the light field range to indicate the relative position between the light field range and the automatic passage device.

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