Feedback module and signal lamp

Abstract

The utility model discloses a feedback module and a signal lamp, and belongs to the technical field of signal lamps. The input end of the adjustable constant current source is electrically connected with the output end of the signal input unit; the light emitting unit is electrically connected with the output end of the adjustable constant current source; the single chip microcomputer is electrically connected with the output end of the signal input unit through an optocoupler detection unit; and the communication unit is in communication connection with the single chip microcomputer. The single-chip microcomputer is connected with the optocoupler detection unit electrically connected with the output end of the signal input unit, so that the single-chip microcomputer obtains the state information of the signal lamp, the communication unit communicates with the traffic command center, and the problem that the traffic command center is difficult to receive the state information of the signal lamp in real time is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to traffic signal light technical field, concretely is a feedback module and signal light. BACKGROUND

[0002] Traffic signal light is the infrastructure of traffic management, and is mainly responsible for providing necessary traffic indication for road user. However, the current signal light is not directly controlled by traffic control center, but is indirectly controlled through networking with signal machine. At the same time, in the current traffic management system, the signal light state information provided by most signal machines does not completely reflect the actual situation, leading to manual monitoring by video monitoring equipment in important occasions to ensure the accuracy of information.

[0003] However, although the method of manually monitoring signal light can guarantee the accuracy of data, its cost is high, and the response speed is slow, which cannot meet the strict requirements of modern intelligent traffic system on real-time and accuracy. Therefore, the feedback data disconnection of signal light has become the weak link of intelligent traffic control.

[0004] Therefore, it is urgent to develop a feedback module and signal light to solve the problems in the prior art. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a feedback module and signal light, which can receive the signal output by the signal input unit to the light emitting unit through the setting of the opto-coupler detection unit, so as to solve the problem that the traffic control center cannot receive the signal light state information in real time.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A feedback module comprises:

[0008] a signal input unit,

[0009] an adjustable constant current source, the input end of the adjustable constant current source is connected with the output end of the signal input unit;

[0010] a light emitting unit, the light emitting unit is electrically connected with the output end of the adjustable constant current source;

[0011] a single-chip microcomputer, the single-chip microcomputer is electrically connected with the output end of the signal input unit through the opto-coupler detection unit;

[0012] a communication unit, the communication unit is in communication connection with the single-chip microcomputer.

[0013] Furthermore, the signal input unit is used for optical signal input, and one or more optical coupler detection units are provided. Each optical coupler detection unit includes an optical coupler. The first end of the optical coupler is used to connect to the live wire of the optical signal input, the second end is used to connect to the neutral wire of the optical signal input, the third end is used to communicate with the microcontroller and is also electrically connected to the regulated power supply, and the fourth end is grounded.

[0014] Furthermore, the optocoupler detection unit also includes a light-emitting diode, the two ends of which are respectively connected to the first end and the second end of the optocoupler.

[0015] Furthermore, the positive terminal of the light-emitting diode is connected to the second terminal of the optocoupler, and the negative terminal of the light-emitting diode is connected to the first terminal of the optocoupler.

[0016] Furthermore, it also includes:

[0017] A regulated power supply is electrically connected to the signal input unit via a rectifier bridge unit and is also electrically connected to the microcontroller.

[0018] Furthermore, the optical signals include red light signals, yellow light signals, and green light signals; the light-emitting unit includes a red light, a yellow light, and a green light; each of the red light, yellow light, and green light is connected to an adjustable constant current source; the red light signals, yellow light signals, and green light signals are electrically connected to the red light, yellow light, and green light respectively through the adjustable constant current source to power the red light, yellow light, and green light; the microcontroller is communicatively connected to the adjustable constant current source to control the current output magnitude of the adjustable constant current source.

[0019] Furthermore, multiple rectifier bridges are provided, and the input terminals of the rectifier bridges are respectively connected to the output terminals of the signal input unit, while the output terminals of the multiple rectifier bridges are all connected to the regulated power supply.

[0020] Furthermore, it also includes a brightness sensor, which is communicatively connected to the microcontroller.

[0021] Furthermore, the communication unit includes a communication chip, which is connected to an eSIM chip, and the communication chip is connected to the microcontroller via a transistor.

[0022] A signal light, including the aforementioned feedback module.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] (1) the application is through the connection and signal input unit output end electric connection of opto-coupler detection unit, so that the single-chip microcomputer can receive the red light signal, yellow light signal and green light signal sent by the output end of signal input unit to the light emitting unit, to realize the single-chip microcomputer acquires signal light state information;At the same time, the single-chip microcomputer is also connected with communication unit, can through communication unit and traffic control center real-time communication, solved the traffic control center difficult to receive signal light state information in real time.

[0025] (2) further, the first end of the opto-coupler in the opto-coupler detection unit is used for connecting with the input fire line of optical signal, the second end is used for connecting with the input zero line of optical signal, the anode of the light emitting diode is connected with the second end of the opto-coupler, and the cathode of the light emitting diode is connected with the first end of the opto-coupler, so that the red light signal, yellow light signal and green light signal of single-phase electric input realize the conduction of opto-coupler in positive half cycle current direction, and realize the lighting of light emitting diode in negative half cycle current direction, avoid the interference between opto-coupler and light emitting diode.

[0026] Other features and advantages of the present application will be described in detail in the following specific embodiments, drawings. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the overall structure schematic diagram of the utility model;

[0028] Figure 2 is the circuit schematic diagram of signal input unit of the utility model;

[0029] Figure 3 is the adjustable constant current source part circuit schematic diagram of the utility model;

[0030] Figure 4 is the circuit schematic diagram of single-chip microcomputer of the utility model;

[0031] Figure 5 is the circuit schematic diagram of opto-coupler detection unit of the utility model;

[0032] Figure 6 is the circuit schematic diagram of rectifier bridge of the utility model;

[0033] Figure 7 is the constant voltage power supply part circuit schematic diagram of the utility model;

[0034] Figure 8 is the circuit schematic diagram of brightness sensor of the utility model;

[0035] Figure 9 is the circuit schematic diagram of communication unit of the utility model. DETAILED DESCRIPTION

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0037] A feedback module, such as Figure 1 As shown, it includes:

[0038] Signal input unit;

[0039] An adjustable constant current source, wherein the input terminal of the adjustable constant current source is connected to the signal input unit;

[0040] A light-emitting unit, wherein the light-emitting unit is electrically connected to the output terminal of the adjustable constant current source;

[0041] The microcontroller is electrically connected to the signal input unit via an optocoupler detection unit;

[0042] A regulated power supply is electrically connected to the signal input unit through a rectifier bridge unit and is also electrically connected to the microcontroller to supply power to the microcontroller.

[0043] A communication unit is provided, which is connected to the microcontroller.

[0044] In this embodiment, the light-emitting unit and the microcontroller are each powered by an independent power supply and do not affect each other, so as to avoid the microcontroller's failure affecting the basic indication function of the signal light.

[0045] In this embodiment, the signal input unit is used for inputting optical signals, including red, yellow, and green light signals. The light-emitting unit includes a red lamp, a yellow lamp, and a green lamp. Each of the red, yellow, and green lamps is equipped with an adjustable constant current source. The red, yellow, and green light signals are electrically connected to their respective lamps via the adjustable constant current sources, and supply power to the red, yellow, and green lamps. In this embodiment, the light-emitting unit is an LED light-emitting unit.

[0046] In this embodiment, the red, yellow, and green light signals are 220VAC signals, which are single-phase AC power, including a live input wire and a neutral input wire. They are connected to corresponding adjustable constant current sources to power the red, yellow, and green lights. In this embodiment, the adjustable constant current source is a PADF12-24, but it can be replaced with other adjustable constant current sources with the same function. This is prior art and will not be elaborated further in this application.

[0047] like Figure 2As shown in the figure, in the embodiment, the signal input unit includes an interface J1, the first end, the second end and the third end of the interface J1 are respectively used for connecting with the input live wire of the red light signal, the yellow light signal and the green light signal, i.e. L-R line, L-Y line and L-G line, the fourth end of the interface J1 is used for connecting with the input zero line of the red light signal, the yellow light signal and the green light signal, i.e. N line, in the embodiment, the red light signal, the yellow light signal and the green light signal share the N line.

[0048] As shown in the figure, Figure 3 In the embodiment, three adjustable constant current sources are arranged, including an adjustable constant current source connected with the interface U2 and the interface J2 for supplying power to the red light, an adjustable constant current source connected with the interface U6 and the interface J3 for supplying power to the yellow light and an adjustable constant current source connected with the interface U7 and the interface J4 for supplying power to the green light, wherein the first end and the second end of the interface U2, U6 and U7 are used for connecting with the L-R line, L-Y line, L-G line and N line of the corresponding red light signal, yellow light signal and green light signal, the third end and the fourth end of the interface U2, U6 and U7 and the first end and the second end of the interface J2, J3 and J4 are used for constant current output, and are respectively connected with the red light, the yellow light and the green light to supply power to the red light, the yellow light and the green light.

[0049] Optionally, as shown in the figure, Figure 3 and Figure 4 In the embodiment, the single-chip microcomputer U8 is in communication connection with the adjustable constant current source, so as to adjust the brightness of the light emitting unit by adjusting the output current size of the adjustable constant current source. Specifically, the fifth end of the interface U2, U6 and U7 is respectively connected with the pin on the single-chip microcomputer, the single-chip microcomputer outputs PWM power control signal to adjust the constant current output size, and the adjustment range is 10% to 100%. In the embodiment, the model of the single-chip microcomputer U8 is STC8H1K24.

[0050] In the embodiment, the three-way optocoupler detection unit is used for converting the red light signal, the yellow light signal and the green light signal into 50Hz square wave pulse and connecting to three input IO pins of the single-chip microcomputer.

[0051] As shown in the figure, Figure 5As shown, the light coupling detection unit is provided with at least three, and the three light coupling detection units are connected with the red light signal, the yellow light signal and the green light signal respectively. Taking the light coupling detection unit connected with the red light signal as an example, the light coupling detection unit comprises a light coupling U3, a first end of the light coupling U3 is used for connecting with the input live wire of the red light signal, a second end is used for connecting with the input zero line of the red light signal, a third end is in communication connection with the 19th pin of the single-chip microcomputer and is electrically connected with the voltage stabilizing power supply through a resistor, and a fourth end is grounded. Wherein, the first end of the light coupling U3 is connected with the input live wire of the red light signal through a resistor R4, and the first end and the second end of the light coupling U3 are connected with two ends of a resistor R7 respectively. The fourth end of the light coupling U3 is electrically connected with the voltage stabilizing power supply through a resistor R1 and is powered by the voltage stabilizing power supply.

[0052] The application connects the light coupling detection unit with the output end of the signal input unit on the single-chip microcomputer, so that the single-chip microcomputer can acquire the state information of the red light signal, the yellow light signal and the green light signal sent by the output end of the signal input unit to the light emitting unit according to the conduction state of the light coupling, to realize the acquisition of the signal lamp state information by the single-chip microcomputer. Specifically, the software program in the single-chip microcomputer for judging the signal lamp state information according to the conduction of the light coupling detection unit corresponding to each input signal can be obtained according to the prior art, and will not be described herein.

[0053] In the embodiment, the first end and the second end of the light coupling U3 are also connected with the positive and negative electrodes of a light emitting diode D13 respectively, to facilitate maintenance. In the embodiment, the positive electrode of the light emitting diode D13 is connected with the second end of the light coupling U3, and the negative electrode of the light emitting diode D13 is connected with the first end of the light coupling U3, so that the red light signal, the yellow light signal and the green light signal of the single-phase input realize the conduction of the light coupling in the positive half cycle current direction, and realize the lighting of the light emitting diode in the negative half cycle current direction, to avoid the interference between the light coupling and the light emitting diode.

[0054] As shown in the figure, Figure 6 The rectifier bridge is provided with a plurality of, the input ends of the plurality of rectifier bridges are connected with the plurality of output ends of the signal input unit respectively, and the output ends of the plurality of rectifier bridges are all connected with the voltage stabilizing power supply. In the embodiment, the red light signal, the yellow light signal and the green light signal are connected with the input ends of three rectifier bridges respectively, and the output ends of the three rectifier bridges are all connected with the voltage stabilizing power supply.

[0055] In the embodiment, as shown in the figure, Figure 6 and Figure 7As shown, the system includes rectifier bridges D1, D2, and D3. Taking rectifier bridge D1 as an example, the first and second terminals of rectifier bridge D1 are connected to the first and second terminals of the regulated power supply U1, respectively. The third terminal of rectifier bridge D1 is connected to the input neutral wire, and the fourth terminal of rectifier bridge D1 is connected to the input live wire of the red light signal. The third terminal of the regulated power supply U1 outputs a 5V voltage. In this embodiment, the rectifier bridge is model ABS210, and the regulated power supply is model PA05TK.

[0056] like Figure 8 As shown, it also includes a brightness sensor, which is communicatively connected to the microcontroller. The brightness sensor is used by the microcontroller to obtain the ambient brightness signal, so that it can control the output current of the adjustable constant current power supply to adjust the brightness of the LED light-emitting unit according to the ambient brightness.

[0057] In this embodiment, the brightness sensor is model BH1750, the first pin of the brightness sensor U9 is connected to the regulated power supply, the fourth pin of the brightness sensor U9 is connected to the fifth pin of the microcontroller U8, and the sixth pin of the brightness sensor U9 is connected to the sixth pin of the microcontroller U8.

[0058] In this embodiment, the communication unit is used to upload data from the microcontroller to the cloud platform data center. For example... Figure 9 As shown, the communication unit includes a communication chip, which is connected to the microcontroller via a transistor. Specifically, pin 15 of the communication chip U13 is connected to the third terminal of transistor Q18, the first terminal of transistor U18 is connected to pin 3 of microcontroller U8, and the second terminal is grounded. Pin 17 of the communication chip U13 is connected to the third terminal of transistor Q14, the second terminal of transistor Q14 is connected to pin 2 of microcontroller U8 and a 5V voltage, and the first terminal is connected to a 1V / 8 voltage. In this embodiment, pin 24 of the communication chip U13 outputs a 1V / 8 voltage. Pin 18 of the communication chip U13 is connected to the second terminal of transistor Q13, the third terminal of transistor Q13 is connected to pin 1 of microcontroller U8 and a 5V voltage, and the first terminal is connected to a 1V / 8 voltage.

[0059] In this embodiment, the communication chip is model GM800. The communication unit is a 4G communication unit, and the communication chip is connected to an eSIM chip. In this embodiment, the eSIM chip is model ESIM0400.

[0060] A traffic light includes the aforementioned feedback module and a traffic light housing, wherein the feedback module is disposed within the traffic light housing.

[0061] The signal lamp with feedback function provided by the application can automatically collect input light signals, learn and record data of light signal colors, time allocation, cycle, pulse and flicker, and upload the data to an existing cloud platform data center through 4G wireless communication, so that a command center can obtain intersection signal lamp working data through cloud platform data service and provide on-site signal lamp operation information for traffic command intelligentization.

[0062] The feedback module and the signal lamp are simple in structure, convenient to use and high in reliability.

[0063] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A feedback module, characterized by The utility model relates to a feedback module, comprising: a signal input unit; an adjustable constant current source, an input end of which is electrically connected to an output end of the signal input unit; a light-emitting unit, an output end of which is electrically connected to the adjustable constant current source; a single-chip microcomputer, an output end of which is electrically connected to the signal input unit through a photocoupler detection unit; a communication unit, which is in communication connection with the single-chip microcomputer.

2. The feedback module of claim 1, wherein, The signal input unit is used for input of an optical signal, the photocoupler detection unit is provided with more than one photocoupler, the photocoupler has a first end used for connection with a live wire of the input optical signal, a second end used for connection with a zero line of the input optical signal, a third end in communication connection with the single-chip microcomputer and electrically connected to a voltage stabilizing power supply, and a fourth end grounded.

3. The feedback module of claim 2, wherein, The photocoupler detection unit further comprises a light-emitting diode, two ends of the light-emitting diode being respectively connected to the first end and the second end of the photocoupler.

4. The feedback module of claim 3, wherein, The anode of the light-emitting diode is connected to the second end of the photocoupler, and the cathode of the light-emitting diode is connected to the first end of the photocoupler.

5. The feedback module according to any one of claims 2-4, characterized in that, Further comprising: a voltage stabilizing power supply, which is electrically connected to the signal input unit through a rectifier bridge unit and is electrically connected to the single-chip microcomputer.

6. The feedback module of claim 5, wherein, The optical signal comprises red light signals, yellow light signals and green light signals, the light-emitting unit comprises red lights, yellow lights and green lights, each of the red lights, yellow lights and green lights is connected to an adjustable constant current source; the red light signals, yellow light signals and green light signals are respectively electrically connected to the red lights, yellow lights and green lights through the adjustable constant current sources to supply power to the red lights, yellow lights and green lights; the single-chip microcomputer is in communication connection with the adjustable constant current sources to control the current output of the adjustable constant current sources.

7. The feedback module of claim 6, wherein, The rectifier bridge is provided with multiple rectifier bridges, input ends of the rectifier bridges are respectively connected to output ends of the signal input unit, and output ends of the multiple rectifier bridges are all connected to the voltage stabilizing power supply.

8. The feedback module of claim 7, wherein, Further comprising a brightness sensor, which is in communication connection with the single-chip microcomputer.

9. The feedback module of claim 8, wherein, Further comprising a communication unit, which is in communication connection with the single-chip microcomputer; the communication unit comprises a communication chip, the communication chip is connected to an eSIM chip, and the communication chip is in communication connection with the single-chip microcomputer through a triode.

10. A signal light, characterized by The utility model relates to a feedback module, comprising: any one of claims 1-9.

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