CN220105829U - Traffic signal lamp detection device - Google Patents
Traffic signal lamp detection device Download PDFInfo
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- CN220105829U CN220105829U CN202320976299.9U CN202320976299U CN220105829U CN 220105829 U CN220105829 U CN 220105829U CN 202320976299 U CN202320976299 U CN 202320976299U CN 220105829 U CN220105829 U CN 220105829U
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- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 238000010168 coupling process Methods 0.000 claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 claims abstract description 21
- 230000008878 coupling Effects 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model provides a traffic signal lamp detection device, comprising: the input end of the rectification circuit is connected with the alternating current signal and is used for converting the alternating current signal into a direct current signal; the input end of the photoelectric coupling circuit is connected with the output end of the rectifying circuit and is used for carrying out photoelectric coupling on the direct current signal; the input end of the conversion circuit is connected with the output end of the photoelectric coupling circuit and is used for converting the direct current signal after photoelectric coupling; the input end of the controller is connected with the output end of the conversion circuit, and the output end of the controller is connected with the snapshot camera and is used for outputting the converted direct current signal to a control host of the electronic police system; the ac signal is 36V ac signal. The input signal of the traffic signal lamp detection device is 36V alternating current signal, the 36V alternating current signal is a human body safety signal, and even if the traffic signal lamp detection device is contacted with the alternating current signal during maintenance, risks can not occur, so that the safety performance of the traffic signal lamp detection device is improved.
Description
Technical Field
The utility model belongs to the technical field of traffic equipment, and particularly relates to a traffic signal lamp detection device.
Background
The traffic signal lamp detection device is used for detecting the red light signal of traffic signal lamp, when the red light is lighted, triggers the candid photograph camera and shoots the vehicle that violating regulations, in prior art, in traffic signal lamp output 220V's alternating current signal to traffic signal lamp detection device, because the voltage that outputs to traffic signal lamp detection device is too high, when overhauling traffic signal lamp detection device, can have very big potential safety hazard.
Disclosure of Invention
In order to overcome the technical defects, the utility model provides a traffic signal lamp detection device, which can improve the safety performance of the traffic signal lamp detection device.
In order to solve the problems, the utility model adopts the following scheme:
a traffic signal light detection device comprising:
the input end of the rectification circuit is connected with the alternating current signal and is used for converting the alternating current signal into a direct current signal;
the input end of the photoelectric coupling circuit is connected with the output end of the rectifying circuit and is used for carrying out photoelectric coupling on the direct current signal;
the input end of the conversion circuit is connected with the output end of the photoelectric coupling circuit and is used for converting the direct current signal after photoelectric coupling;
the input end of the controller is connected with the output end of the conversion circuit, and the output end of the controller is connected with a control host of the electronic police system and is used for outputting the converted direct current signal to the control host of the electronic police system;
the alternating current signal is 36V alternating current signal.
As a further improvement of the present utility model, the rectifier circuit is a rectifier bridge circuit.
As a further improvement of the utility model, the rectifier circuit, the photoelectric coupling circuit and the conversion circuit are at least one path.
As a further improvement of the present utility model, the present utility model further includes: and the indicator lamps are connected with the controller.
The beneficial effects of the utility model are as follows: the input signal of the traffic signal lamp detection device is 36V alternating current signal, the 36V alternating current signal is a human body safety signal, and even if the traffic signal lamp detection device is contacted with the alternating current signal during maintenance, risks can not occur, so that the safety performance of the traffic signal lamp detection device is improved.
Drawings
The utility model is described in further detail below with reference to the attached drawing figures, wherein:
fig. 1 is a schematic structural diagram of a traffic signal light detection device according to embodiment 1.
Marking: 1. a rectifying circuit; 2. a photoelectric coupling circuit; 3. a conversion circuit; 4. a controller; 5. an indicator light; 100. an alternating current signal; 101. and a control host of the electronic police system.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The traffic control system includes in practical applications: the traffic signal lamp, the control main cabinet and the traffic signal lamp detection device are respectively arranged at different positions on the road surface, the control main cabinet is used as a main component of the whole traffic control system, signals output by the traffic signal lamp can firstly pass through the control main cabinet and then are connected to the traffic signal lamp detection device, in the prior art, 220V alternating current signals are output by the traffic signal lamp and then are directly output to the traffic signal lamp detection device after passing through the control main cabinet, and then 220V alternating current signals are converted into 5V direct current signals by the voltage reduction unit and the voltage conversion unit in the traffic signal lamp detection device for use by the controller, in other words, the traffic signal lamp detection device is provided with 220V alternating current signals, and great potential safety hazards can exist in the overhaul process.
The utility model provides a traffic signal lamp detection device, as shown in figure 1, comprising: the traffic signal lamp comprises a rectifying circuit 1, a photoelectric coupling circuit 2, a converting circuit 3 and a controller 4, wherein the input end of the rectifying circuit 1 is connected with the traffic signal lamp and used for converting an alternating current signal 100 of the traffic signal lamp into a direct current signal; the input end of the photoelectric coupling circuit 2 is connected with the output end of the rectifying circuit 1 and is used for carrying out photoelectric coupling on direct current signals; the input end of the conversion circuit 3 is connected with the output end of the photoelectric coupling circuit 2 and is used for converting direct current signals; the input end of the controller 4 is connected with the output end of the conversion circuit 3, and the output end is connected with the snapshot camera and is used for outputting the converted direct current signal to the control host 101 of the electronic police system; ac signal 100 is a 36V ac signal.
The 36V alternating current signal can be reduced by the voltage reducing unit of the control main cabinet, and based on the voltage reducing unit, the highest voltage of the 36V alternating current signal does not exceed 36V when the 36V alternating current signal is transmitted to the traffic light detection device, the 36V alternating current signal belongs to the safety voltage level of a human body, and the 36V alternating current signal has extremely high safety when the traffic light detection device is overhauled.
In one embodiment, the rectifying circuit 1 is a rectifying bridge circuit, and may be implemented using DB 107S.
As shown in fig. 1, the circuit comprises at least one path of rectifying circuit 1, photoelectric coupling circuit 2 and conversion circuit 3.
In order to indicate the operation state of the traffic light detection device, in some embodiments, a plurality of indicator lamps 5 connected with the controller 4 are further included, and the traffic light detection device is turned on when in operation.
The function of the photo-coupler circuit 2 is mainly implemented by the PC817, and the function of the conversion circuit 3 is mainly implemented by the 74LV245 AD.
The utility model is further explained below in connection with specific embodiments:
when the traffic signal lamp is lighted, 220V alternating current signals are generated, at the moment, the 220V alternating current signals are converted into 36V alternating current signals through the control main cabinet, and then 5V direct current voltages are obtained after sequentially passing through the rectifying circuit 1, the photoelectric coupling circuit 2 and the converting circuit 3.
For other specific embodiments of the present utility model, please refer to the prior art, and a detailed description thereof is omitted herein.
The foregoing is only illustrative of the present utility model and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present utility model.
Claims (4)
1. A traffic signal detection device, comprising:
the input end of the rectification circuit is connected with the alternating current signal and is used for converting the alternating current signal into a direct current signal;
the input end of the photoelectric coupling circuit is connected with the output end of the rectifying circuit and is used for carrying out photoelectric coupling on the direct current signal;
the input end of the conversion circuit is connected with the output end of the photoelectric coupling circuit and is used for converting the direct current signal after photoelectric coupling;
the input end of the controller is connected with the output end of the conversion circuit, and the output end of the controller is connected with a control host of the electronic police system and is used for outputting the converted direct current signal to the control host of the electronic police system;
the alternating current signal is 36V alternating current signal.
2. The traffic light detection device of claim 1 wherein the rectifier circuit is a rectifier bridge circuit.
3. The traffic signal detection device of claim 1, comprising at least one of the rectifying circuit, the photo-coupling circuit, and the converting circuit.
4. The traffic light detection device of claim 1, further comprising: and the indicator lamps are connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320976299.9U CN220105829U (en) | 2023-04-25 | 2023-04-25 | Traffic signal lamp detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320976299.9U CN220105829U (en) | 2023-04-25 | 2023-04-25 | Traffic signal lamp detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220105829U true CN220105829U (en) | 2023-11-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320976299.9U Active CN220105829U (en) | 2023-04-25 | 2023-04-25 | Traffic signal lamp detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220105829U (en) |
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2023
- 2023-04-25 CN CN202320976299.9U patent/CN220105829U/en active Active
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