Passive access control optical sensor

Abstract

The utility model discloses a passive access control optical sensor, which relates to the technical field of optical sensors, and comprises a fixed plate a and a fixed plate b, a light shielding plate is arranged on one side of the fixed plate a, a solar panel is arranged at the upper end of the light shielding plate, a storage battery pack is arranged at the lower end of the light shielding plate, a light source is arranged above the storage battery pack, and the light source is arranged above the light shielding plate. A receiving unit is arranged on one side of the fixing plate b, and the fixing plate a and the fixing plate b are arranged on the same vertical plane at the same height. The transmitting unit and the receiving unit are respectively fixed at corresponding positions through the fixing plate a and the fixing plate b, the arrangement of the metal shell can protect internal components, the service life of equipment is prolonged, the arrangement of the optical filter can filter interference light rays, light receiving elements are prevented from being interfered by other light rays, and the service life of the equipment is prolonged. The arrangement of the shading plate can aggregate the light emitted by the light source, thereby preventing the light emitted by the light source from irradiating other positions in a large amount, and preventing the light received by the receiving unit from being less.

Description

Technical Field

[0001] The utility model relates to the technical field of optical sensors, in particular to a passive access control optical sensor. Background Art

[0002] Passive access control is a type of access control system that does not require the use of power or active electronic devices for identity authentication or access control. Passive access control light sensors are sensors used in passive access control to transmit the opening or closing of the control terminal. The existing technology has the following problems:

[0003] 1. The existing passive access control optical sensor needs an external power supply when in use. The power cord is set at the access control entrance, which causes inconvenience to pedestrians and this power supply method is not suitable for passive access control;

[0004] 2. In the existing passive access control light sensor, the receiving unit can receive very little light emitted by the transmitting unit. When the external environment is bright, the light sensor will often issue wrong instructions. Utility Model Content

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A passive access control light sensor comprises a fixing plate a and a fixing plate b, wherein a shading plate is arranged on one side of the fixing plate a, a solar panel is arranged on the upper end of the shading plate, a battery pack is arranged on the lower end of the shading plate, a light source is arranged above the battery pack, a receiving unit is arranged on one side of the fixing plate b, and the fixing plate a and the fixing plate b are arranged on the same height and the same vertical plane.

[0007] A further improvement of the technical solution of the utility model is that: the light source is fixed on the fixing plate a, and the shading plate is arranged on the periphery of the light source.

[0008] A further improvement of the technical solution of the utility model is that: the receiving unit includes a substrate, the substrate is fixedly connected to the fixed plate b, a circuit board is arranged on the side of the substrate away from the fixed plate b, a plurality of metal columns are arranged on the side of the circuit board, a light receiving element is arranged on the other end of the metal column, a metal shell is arranged on the substrate, and an optical filter is arranged at the center position of the side of the metal shell.

[0009] A further improvement of the technical solution of the utility model is that: the substrate is fixedly connected to the circuit board, the side of the circuit board is fixedly connected to one end of a plurality of metal pillars, the other end of the metal pillar is fixedly connected to the light receiving element, the substrate is fixedly connected to the metal shell, and the center position of the side of the metal shell is fixedly connected to the optical filter.

[0010] A further improvement of the technical solution of the utility model is that the battery pack includes a battery, a mounting plate is arranged on the outer peripheral surface of one end of the battery, an indicator light is arranged on the front of the battery, a charging interface is arranged on the upper end surface of the battery, fixing grooves are arranged on the upper and lower end surfaces of the battery, and a plurality of metal contacts are arranged on the battery.

[0011] A further improvement of the technical solution of the utility model is that: the outer peripheral surface of one end of the battery is fixedly connected to the mounting plate, the battery is detachably connected to the sunshade through a fixing groove, and the battery is fixedly connected to multiple metal contacts.

[0012] A further improvement of the technical solution of the utility model is that the battery pack can be connected to the solar panel through a charging interface

[0013] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0014] 1. The utility model provides a passive access control optical sensor. Through the joint action of a light source, a shading plate, a substrate, a metal shell, a circuit board, a metal column, a light receiving element, and an optical filter, the transmitting unit is fixed at a corresponding position through a fixing plate a, and the receiving unit is fixed at a corresponding position through a fixing plate b. At this time, the light emitted by the light source can just be filtered by the optical filter and then irradiated on the light receiving element. When a pedestrian passes by the access control, the light emitted by the light source is blocked, and the light receiving element cannot receive the light emitted by the light source, and the properties such as resistance change. These changes are converted into a signal for opening the access control after being processed by the circuit board. The access control is opened after receiving the signal. When a pedestrian passes through the access control, if the light emitted by the light source is not blocked, the light receiving element can continue to receive light, and the access control is always closed. The setting of the metal shell can protect the internal components and increase the service life of the equipment. The setting of the optical filter can filter out interfering light and prevent the light receiving element from being interfered by other light. The setting of the shading plate can aggregate the light emitted by the light source to prevent the light emitted by the light source from being irradiated in large quantities at other positions, resulting in less light received by the receiving unit.

[0015] 2. The utility model provides a passive access control light sensor. Through the joint action of solar panels, batteries, mounting plates, indicator lights, charging interfaces, fixing grooves, and metal contacts, the battery pack can provide lighting power to the light source. The battery pack can be conveniently and detachably connected to the sunshade through the mounting plate and the fixing groove. When the indicator light of the battery pack changes from green to red, indicating that the battery pack has little power left, the staff can directly unplug the battery pack for replacement. At the same time, the battery pack can be connected to the solar panel through the charging interface. The solar panel can convert light energy into electrical energy and store it in the battery pack for use by the light source. This method can avoid the need for staff to frequently replace the battery pack, reducing unnecessary operations. Through this device, the setting of redundant power cords is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the passive access control optical sensor of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a receiving unit of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the battery pack of the utility model;

[0019] Figure 4 This is an application example diagram of the utility model.

[0020] In the figure: 1. fixing plate a; 2. fixing plate b; 3. receiving unit; 4. solar panel; 5. light source; 6. battery pack; 8. sunshade; 31. substrate; 32. metal shell; 33. circuit board; 34. metal column; 35. light receiving element; 36. optical filter; 61. battery; 62. mounting plate; 63. indicator light; 64. charging interface; 65. fixing slot; 66. metal contact. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the embodiments:

[0022] Example 1

[0023] like Figure 1-4 As shown, the utility model provides a passive access control light sensor, including a fixed plate a1 and a fixed plate b2, a shading plate 8 is arranged on one side of the fixed plate a1, a solar panel 4 is arranged on the upper end of the shading plate 8, a battery pack 6 is arranged on the lower end of the shading plate 8, a light source 5 is arranged above the battery pack 6, a receiving unit 3 is arranged on one side of the fixed plate b2, the fixed plate a1 and the fixed plate b2 are arranged on the same height and the same vertical plane, the light source 5 is fixed on the fixed plate a1, and the shading plate 8 is arranged on the periphery of the light source 5.

[0024] Example 2

[0025] like Figure 1-4 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the receiving unit 3 includes a substrate 31, the substrate 31 is fixedly connected to the fixed plate b2, a circuit board 33 is arranged on the side of the substrate 31 away from the fixed plate b2, a plurality of metal pillars 34 are arranged on the side of the circuit board 33, a light receiving element 35 is arranged on the other end of the metal pillar 34, a metal shell 32 is arranged on the substrate 31, an optical filter 36 is arranged at the center position of the side of the metal shell 32, the substrate 31 is fixedly connected to the circuit board 33, the side of the circuit board 33 is fixedly connected to one end of the plurality of metal pillars 34, the other end of the metal pillar 34 is fixedly connected to the light receiving element 35, the substrate 31 is fixedly connected to the metal shell 32, and the center position of the side of the metal shell 32 is fixedly connected to the optical filter 36.

[0026] In this embodiment, the transmitting unit is fixed at the corresponding position by the fixing plate a1, and the receiving unit 3 is fixed at the corresponding position by the fixing plate b2. At this time, the light emitted by the light source 5 can just pass through the filtration of the optical filter 36 and then irradiate on the light receiving element 35. When a pedestrian passes by the access control, the light emitted by the light source 5 is blocked, and the light receiving element 35 cannot receive the light emitted by the light source 5, and the properties such as resistance change. These changes are converted into a signal for opening the access control after being processed by the circuit board 33. The access control is opened after receiving the signal. When the pedestrian passes through the access control, if the light emitted by the light source 5 is not blocked, the light receiving element 35 can continue to receive light, and the access control is always closed. The setting of the metal shell 32 can protect the internal components and increase the service life of the equipment. The setting of the optical filter 36 can filter out interfering light and prevent the light receiving element 35 from being interfered by other light. The setting of the shading plate 8 can aggregate the light emitted by the light source 5 to prevent the light emitted by the light source 5 from irradiating a large amount of light at other positions, resulting in less light received by the receiving unit 3.

[0027] Example 3

[0028] like Figure 1-4 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the battery pack 6 includes a battery 61, a mounting plate 62 is arranged on the outer peripheral surface of one end of the battery 61, an indicator light 63 is arranged on the front of the battery 61, a charging interface 64 is arranged on the upper end surface of the battery 61, a fixing groove 65 is arranged on the upper end surface and the lower end surface of the battery 61, a plurality of metal contacts 66 are arranged on the battery 61, an outer peripheral surface of one end of the battery 61 is fixedly connected to the mounting plate 62, the battery 61 is detachably connected to the sunshade 8 through the fixing groove 65, the battery 61 is fixedly connected to the plurality of metal contacts 66, and the battery pack 6 can be connected to the solar panel 4 through the charging interface 64.

[0029] The following is a detailed description of the working principle of the passive access control light sensor.

[0030] like Figure 1-4 As shown, when the device is in use, the transmitting unit is fixed at the corresponding position by the fixing plate a1, and the receiving unit 3 is fixed at the corresponding position by the fixing plate b2. At this time, the light emitted by the light source 5 can just pass through the filtration of the optical filter 36 and then irradiate on the light receiving element 35. When a pedestrian passes by the access control, the light emitted by the light source 5 is blocked, and the light receiving element 35 cannot receive the light emitted by the light source 5. The properties such as resistance change, these changes are converted into a signal for the access control to be opened after being processed by the circuit board 33. The access control is opened after receiving the signal. When the pedestrian passes through the access control, if the light emitted by the light source 5 is not blocked, the light receiving element 35 can continue to receive light, and the access control is always closed. The setting of the metal shell 32 can protect the internal components and increase the service life of the equipment. The setting of the optical filter 36 can filter out interfering light to prevent the light receiving element 35 from being affected. In order to avoid interference from other light, the setting of the shading plate 8 can aggregate the light emitted by the light source 5, so as to prevent the light emitted by the light source 5 from being irradiated in large quantities at other positions, resulting in less light received by the receiving unit 3. The setting of the battery pack 6 can provide lighting power for the light source 5. The battery pack 6 can be conveniently and detachably connected to the shading plate 8 through the setting of the mounting plate 62 and the fixing groove 65. When the indicator light 63 of the battery pack 6 changes from green to red, it indicates that the battery pack 6 has little power left. The staff can directly unplug the battery pack 6 for replacement. At the same time, the battery pack 6 can be connected to the solar panel 4 through the charging interface 64. The solar panel 4 can convert light energy into electrical energy and store it in the battery pack 6 for use by the light source 5. This method can avoid the need for staff to frequently replace the battery pack 6, reduce unnecessary operations, and avoid the setting of redundant power cords through this device.

[0031] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A passive access control optical sensor, comprising a fixing plate a (1) and a fixing plate b (2), characterized in that: A shading plate (8) is arranged on one side of the fixed plate a (1), a solar panel (4) is arranged on the upper end of the shading plate (8), a battery pack (6) is arranged on the lower end of the shading plate (8), and a light source (5) is arranged above the battery pack (6); a receiving unit (3) is arranged on one side of the fixed plate b (2), and the fixed plate a (1) and the fixed plate b (2) are arranged at the same height and on the same vertical plane.

2. The passive access control optical sensor according to claim 1, characterized in that: The light source (5) is fixed on a fixing plate a (1), and a light shielding plate (8) is arranged on the periphery of the light source (5).

3. The passive access control optical sensor according to claim 1, characterized in that: The receiving unit (3) comprises a substrate (31), the substrate (31) being fixedly connected to a fixing plate b (2), a circuit board (33) being arranged on a side of the substrate (31) away from the fixing plate b (2), a plurality of metal columns (34) being arranged on a side of the circuit board (33), a light receiving element (35) being arranged on the other end of the metal column (34), a metal shell (32) being arranged on the substrate (31), and an optical filter (36) being arranged at the center position of a side of the metal shell (32).

4. The passive access control optical sensor according to claim 3, characterized in that: The substrate (31) is fixedly connected to the circuit board (33), the side surface of the circuit board (33) is fixedly connected to one end of a plurality of metal pillars (34), the other end of the metal pillars (34) is fixedly connected to the light receiving element (35), the substrate (31) is fixedly connected to the metal shell (32), and the center position of the side surface of the metal shell (32) is fixedly connected to the optical filter (36).

5. The passive access control optical sensor according to claim 1, characterized in that: The storage battery pack (6) comprises a battery (61), a mounting plate (62) is arranged on the outer peripheral surface of one end of the battery (61), an indicator light (63) is arranged on the front of the battery (61), a charging interface (64) is arranged on the upper end surface of the battery (61), fixing grooves (65) are arranged on the upper end surface and the lower end surface of the battery (61), and a plurality of metal contacts (66) are arranged on the battery (61).

6. The passive access control optical sensor according to claim 5, characterized in that: The outer peripheral surface of one end of the battery (61) is fixedly connected to the mounting plate (62), the battery (61) is detachably connected to the shading plate (8) via a fixing groove (65), and the battery (61) is fixedly connected to a plurality of metal contacts (66).

7. The passive access control optical sensor according to claim 6, characterized in that: The battery pack (6) can be connected to the solar panel (4) via a charging interface (64).

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