Single-lane photoelectric detection remote traffic light control system

Abstract

The invention discloses a single-lane photoelectric detection long-distance traffic light control system, which is arranged in a tunnel range between adjacent vehicle passing platforms and comprises two groups of control subsystems, and the two groups of control subsystems are respectively arranged close to the two vehicle passing platforms. Each group of control subsystems comprises a traffic light adjusting module, a bidirectional feedback controller, a traffic light and a photoelectric vehicle detection module, the photoelectric vehicle detection module is used for detecting whether a vehicle passes, and the traffic light adjusting module is used for adjusting the display of the traffic light; the detection output end of the photoelectric vehicle detection module is connected with the vehicle detection input end of the bidirectional feedback controller, the traffic light adjusting output end of the bidirectional feedback controller is connected with the adjusting signal input end of the traffic light adjusting module, and the adjusting output end of the traffic light adjusting module is connected with the traffic light adjusting input end. And the data interaction ends of the bidirectional feedback controllers of the two groups of control subsystems are connected with each other. Structural composition is simple, cost is low, and transportation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel vehicle passing, and in particular to a single-lane photoelectric detection long-distance traffic light control system. Background Art

[0002] Due to the small cross-section in the tunnel and the long construction mileage, construction vehicles in the tunnel can only travel in one direction, and the access of construction vehicles is restricted. In order to facilitate passing, there are passing platforms every 2000m or so in the tunnel, but the rest of the tunnel is still a single lane. When you enter the single lane and find a car, you must return to the passing platform to pass. In order to avoid long-distance reversing, reduce fuel consumption, reduce vehicle wear and tear, and improve transportation efficiency, CN118172943A discloses a traffic light control method, device and system based on engineering vehicle identification, including: S1, real-time acquisition of passing vehicle images; S2, identification of license plate information from the vehicle image; S3, determination of vehicle type based on the identified license plate information; S4, traffic light control adjustment based on the vehicle type. The above scheme is relatively costly, and the required detection device has high precision. Therefore, there is an urgent need for a simple structure, low-cost single-lane photoelectric detection wireless remote traffic light control system. Summary of the invention

[0003] The present invention aims to solve the technical problems existing in the prior art, and particularly innovatively proposes a single-lane photoelectric detection long-distance traffic light control system, which has a simple structure and can prompt vehicles on the other side of the passing platform, thereby improving transportation efficiency.

[0004] In order to achieve the above-mentioned object of the present invention, the present invention provides a single-lane photoelectric detection long-distance traffic light control system, which is arranged in the tunnel range between adjacent passing platforms, and includes two groups of control subsystems, and the two groups of control subsystems are respectively arranged near the two passing platforms, and each group of control subsystems includes a traffic light adjustment module, a two-way feedback controller, a traffic light and a photoelectric vehicle detection module, the photoelectric vehicle detection module is used to detect whether there is a vehicle passing, the traffic light adjustment module is used to adjust the traffic light display, the detection output end of the photoelectric vehicle detection module is connected to the vehicle detection input end of the two-way feedback controller, the traffic light adjustment output end of the two-way feedback controller is connected to the adjustment signal input end of the traffic light adjustment module, and the adjustment output end of the traffic light adjustment module is connected to the traffic light adjustment input end;

[0005] The data exchange terminals of the two-way feedback controllers of the two control subsystems are connected to each other.

[0006] In the above scheme: the control subsystem also includes an addition and subtraction counting module, the counting output end of the bidirectional feedback controller is connected to the counting signal input end of the addition and subtraction counting module, and the traffic light adjustment output end of the addition and subtraction counting module is connected to the adjustment signal input end of the traffic light adjustment module.

[0007] In the above scheme: it also includes an addition and subtraction counting circuit, the addition and subtraction signal input end of the addition and subtraction counting circuit is connected to the addition and subtraction signal output end of the bidirectional feedback controller, and the addition and subtraction signal output end of the addition and subtraction counting circuit is connected to the addition and subtraction signal input end of the addition and subtraction counting module.

[0008] In the above scheme: it also includes a power supply circuit, which includes a transformer L1, the positive pole of the power input of the transformer L1 is connected to the live wire of the power supply, the negative pole of the power input of the transformer L1 is connected to the neutral wire of the power supply, the positive pole of the power output of the transformer L1 is connected to the positive input terminal of the rectifier VD1, the negative pole of the power output of the transformer L1 is connected to the negative input terminal of the rectifier VD1, the positive output terminal of the rectifier VD1 is connected to one end of the capacitor C1 and the power input terminal of the voltage regulator U4, and the other end of the capacitor C1 and the ground terminal of the voltage regulator U4 are both connected to the negative output terminal of the rectifier VD1;

[0009] The traffic light adjustment module includes one end of a resistor R6 connected to the output end of the addition and subtraction counting module, the other end of the resistor R6 connected to the positive electrode of the light-emitting diode D3, the negative electrode of the light-emitting diode D3 connected to the positive electrode of the optocoupler U1, the negative electrode of the optocoupler U1 connected to one end of a resistor R8, the other end of the resistor R8 connected to the common end of the addition and subtraction counting module, the collector of the optocoupler U1 connected to one end of a resistor R5, the other end of the resistor R5 connected to the voltage regulator output end of the voltage regulator U4, one end of a capacitor C3, one end of a capacitor C2 and the positive end of the power supply of the addition and subtraction counting module, the ground end of the voltage regulator U4, the other end of the capacitor C3, the other end of the capacitor C2 and the negative end of the power supply of the addition and subtraction counting module are all connected to the negative output end of the rectifier VD1, the emitter end of the optocoupler U1 is connected to one end of a resistor R4, and the other end of the resistor R4 is connected to the resistor R 3 and one end of capacitor C4, the other end of resistor R3 is connected to the base of transistor Q1, the other end of capacitor C4 is connected to the negative output end of rectifier VD1, the positive output end of rectifier VD1 is connected to one end of capacitor C1, the power input end of regulator U4, one end of D relay winding, the negative electrode of diode D1, one end of E relay winding and one end of resistor R2, the other end of resistor R2 is connected to the positive electrode of light-emitting diode D2, the other end of D relay winding, the positive electrode of diode D1, the other end of E relay winding and the negative electrode of light-emitting diode D2 are connected to the collector of transistor Q1, the emitter of transistor Q1 is connected to the negative output end of rectifier VD1, the common end of D relay is connected to the live wire of power supply, the normally closed contact of D relay is connected to the red light driving circuit, and the normally open contact of D relay is connected to the green light driving circuit.

[0010] In the above scheme: the photoelectric vehicle detection module includes a first infrared beam switch and a second infrared beam switch, the positive electrode of the infrared emitting component power supply of the first infrared beam switch and the second infrared beam switch is connected to the positive output end of the rectifier VD1, the negative electrode of the infrared emitting component power supply of the first infrared beam switch and the second infrared beam switch is connected to the negative output end of the rectifier VD1, the positive electrode of the infrared receiving component power supply of the first infrared beam switch and the second infrared beam switch is connected to the positive output end of the rectifier VD1, the negative electrode of the infrared receiving component power supply of the first infrared beam switch and the second infrared beam switch is connected to the negative output end of the rectifier VD1, the detection output end of the first infrared beam switch is connected to the common end of the E relay, the normally open contact of the E relay is connected to one end of the A1 relay winding, the other end of the A1 relay winding is connected to the negative output end of the rectifier VD1, the normally open contact of the A1 relay is connected to the second signal input end of the bidirectional feedback controller, the common end of the A1 relay is connected to the common end of the bidirectional feedback controller, and the first output common end of the bidirectional feedback controller is connected to the positive output end of the rectifier VD1;

[0011] The detection output end of the second infrared radiation switch is connected to the common end of the E relay, the normally open contact of the E relay is connected to one end of the B1 relay winding, the other end of the B1 relay winding is connected to the negative output end of the rectifier VD1, the normally open contact of the B1 relay is connected to the second signal input end of the bidirectional feedback controller, and the common end of the B1 relay is connected to the common end of the bidirectional feedback controller.

[0012] In the above scheme: the addition and subtraction counting circuit includes the first output normally open contact of the bidirectional feedback controller connected to one end of the A3 relay winding, one end of the A2 relay winding and the cathode of the diode D5, the anode of the diode D5 connected to the normally closed contact of the E relay, the other end of the A3 relay winding connected to the cathode output end of the rectifier VD1, the other end of the A2 relay winding connected to the normally closed contact end of the B2 relay, and the common end of the B2 relay connected to the cathode output end of the rectifier VD1;

[0013] The second output normally open contact of the bidirectional feedback controller is connected to one end of the B3 relay winding, one end of the B2 relay winding and the cathode of the diode D4, the anode of the diode D4 is connected to the normally closed contact of the E relay, the other end of the B3 relay winding is connected to the cathode output end of the rectifier VD1, the other end of the B2 relay winding is connected to the normally closed contact end of the A2 relay, and the common end of the A2 relay is connected to the cathode output end of the rectifier VD1;

[0014] The common end of the A3 relay is connected to the positive output end of the rectifier VD1, the normally open contact end of the A3 relay is connected to one end of the C relay winding, the other end of the C relay winding is connected to the common end of the B3 relay, and the normally open contact end of the B3 relay is connected to the negative output end of the rectifier VD1;

[0015] The common end of the C relay is connected to the negative output end of the rectifier VD1, the normally open contact end of the C relay is connected to the common end of the A2 relay and the common end of the B2 relay, the normally open contact end of the A2 relay is connected to the addend input end of the addition and subtraction counting module, and the normally open contact end of the B2 relay is connected to the subtractive input end of the addition and subtraction counting module.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: the structure is simple and the cost is low, and the switching of traffic lights can be realized through the cooperation of the control subsystems on both sides. When the photoelectric vehicle detection module on one side detects that a vehicle has passed, it is sent to the two-way feedback controller on the other side through the two-way feedback controller on the side, and the display state of the traffic light on the other side is changed through the two-way feedback controller on the other side, which can prompt the vehicles on the other side of the passing platform, thereby improving transportation efficiency. The set addition and subtraction count can record the number of vehicles passing, so as to ensure that the light is switched to green after all vehicles have passed. The photoelectric vehicle detection module adopts two infrared beam switches, namely the first infrared beam switch and the second infrared beam switch, which can detect the order of vehicle passage, so as to be suitable for the situation where the vehicle returns to the original route after driving to the middle of the section, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is an installation schematic diagram of the present invention.

[0019] Figure 2 It is a system diagram of the control subsystem of the present invention.

[0020] Figure 3 It is a circuit diagram of the control subsystem of the present invention. DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] like Figures 1 to 3 As shown, a single-lane photoelectric detection long-distance traffic light control system is set in the tunnel between adjacent passing platforms, including two control subsystems. The two control subsystems are respectively set by two passing platforms, and the two-way feedback controller U3 data exchange terminals of the two control subsystems are wirelessly transmitted through antennas.

[0023] Each control subsystem includes a traffic light adjustment module, an addition and subtraction counting module U2, an addition and subtraction counting circuit, a bidirectional feedback controller U3, and traffic lights and photoelectric vehicle detection modules respectively arranged near two adjacent vehicle passing platforms. The photoelectric vehicle detection module is used to detect whether there is a vehicle passing by, the traffic light adjustment module is used to adjust the traffic light display, the detection output of the photoelectric vehicle detection module is connected to the vehicle detection input of the bidirectional feedback controller U3, the counting output of the bidirectional feedback controller U3 is connected to the counting signal input of the addition and subtraction counting module U2, the traffic light adjustment output of the addition and subtraction counting module U2 is connected to the adjustment signal input of the traffic light adjustment module, and the adjustment output of the traffic light adjustment module is connected to the traffic light adjustment input.

[0024] The traffic light adjustment module includes a resistor R6 connected to the output end of the addition and subtraction counting module U2 at one end, the resistor R6 connected to the positive electrode of the light emitting diode D3 at the other end, the negative electrode of the light emitting diode D3 connected to the positive electrode of the optocoupler U1 at the other end of the resistor R8 at the other end of the resistor R8 connected to the common end of the addition and subtraction counting module U2 at the collector of the optocoupler U1, the resistor R5 connected to the voltage regulator output end of the voltage regulator U4, the capacitor C3 at one end, the capacitor C2 at one end and the positive power supply end of the addition and subtraction counting module U2 at the other end, the voltage regulator U4 grounding end, the capacitor C3 at the other end, the capacitor C2 at the other end and the negative power supply end of the addition and subtraction counting module U2 are all connected to the negative output end of the rectifier VD1, the optocoupler U1 emitter is connected to the resistor R4 at one end, the resistor R4 at the other end is connected to the resistor R3 at one end and the capacitor C4 at one end, the resistor R3 at the other end is connected to the base of the transistor Q1, the capacitor C4 at the other end is connected to the negative output end of the rectifier VD1, and the rectifier VD The positive output end of 1 is connected to one end of capacitor C1, the power input end of voltage regulator U4, one end of D relay winding, the negative electrode of diode D1, one end of E relay winding and one end of resistor R2. The other end of capacitor C1 is connected to the negative output end of rectifier VD1. The positive input end of rectifier VD1 is connected to the positive power output of transformer L1. The negative input end of rectifier VD1 is connected to the negative power output of transformer L1. The positive power input of transformer L1 is connected to the live wire of power supply. The negative power input of transformer L1 is connected to the neutral wire of power supply. The other end of resistor R2 is connected to the positive electrode of light-emitting diode D2. The other end of D relay winding, the positive electrode of diode D1, the other end of E relay winding and the negative electrode of light-emitting diode D2 are connected to the collector of transistor Q1. The emitter of transistor Q1 is connected to the negative output end of rectifier VD1. The common end of D relay is connected to the live wire of power supply. The normally closed contact of D relay is connected to the red light driving circuit. The normally open contact of D relay is connected to the green light driving circuit.

[0025] The two photoelectric vehicle detection modules are respectively the first infrared beam switch U5 and the second infrared beam switch U6 with the signal of E3F-20C1 / 20L. The positive pole of the infrared emitting component power supply of the first infrared beam switch U5 and the second infrared beam switch U6 is connected to the positive output end of the rectifier VD1, the negative pole of the infrared emitting component power supply of the first infrared beam switch U5 and the second infrared beam switch U6 is connected to the negative output end of the rectifier VD1, the positive pole of the infrared receiving component power supply of the first infrared beam switch U5 and the second infrared beam switch U6 is connected to the positive output end of the rectifier VD1, the negative pole of the infrared receiving component power supply of the first infrared beam switch U5 and the second infrared beam switch U6 is connected to the negative output end of the rectifier VD1, the detection output end of the first infrared beam switch U5 is connected to the common end of the E relay, the normally open contact of the E relay is connected to one end of the B1 relay winding and one end of the A1 relay winding, and the B1 relay The other end of the winding and the other end of the A1 relay winding are connected to the negative output end of the rectifier VD1, the normally open contact of the B1 relay is connected to the first signal input end of the bidirectional feedback controller U3, the common end of the B1 relay is connected to the common end of the bidirectional feedback controller U3, the normally open contact of the A1 relay is connected to the second signal input end of the bidirectional feedback controller U3, the common end of the A1 relay is connected to the common end of the bidirectional feedback controller U3, the first output common end of the bidirectional feedback controller U3 is connected to the positive output end of the rectifier VD1, the first output normally open contact of the bidirectional feedback controller U3 is connected to one end of the A3 relay winding, one end of the A2 relay winding and the negative pole of the diode D5, the positive pole of the diode D5 is connected to the normally closed contact of the E relay, the other end of the A3 relay winding is connected to the negative output end of the rectifier VD1, the other end of the A2 relay winding is connected to the normally closed contact end of the B2 relay, and the common end of the B2 relay is connected to the negative output end of the rectifier VD1.

[0026] The second output normally open contact of the bidirectional feedback controller U3 is connected to one end of the B3 relay winding, one end of the B2 relay winding and the cathode of the diode D4. The anode of the diode D4 is connected to the normally closed contact of the E relay. The other end of the B3 relay winding is connected to the negative output end of the rectifier VD1. The other end of the B2 relay winding is connected to the normally closed contact end of the A2 relay. The common end of the A2 relay is connected to the negative output end of the rectifier VD1.

[0027] The common end of the A3 relay is connected to the positive output end of the rectifier VD1, the normally open contact end of the A3 relay is connected to one end of the C relay winding, the other end of the C relay winding is connected to the common end of the B3 relay, and the normally open contact end of the B3 relay is connected to the negative output end of the rectifier VD1.

[0028] The common terminal of C relay is connected to the negative output terminal of rectifier VD1, the normally open contact terminal of C relay is connected to the common terminal of A2 relay and the common terminal of B2 relay, the normally open contact terminal of A2 relay is connected to the addend input terminal of addition and subtraction counting module U2, and the normally open contact terminal of B2 relay is connected to the subtractive input terminal of addition and subtraction counting module U2.

[0029] When starting, the two bidirectional feedback controllers U3 are powered on and drive the corresponding addition and subtraction counting modules U2 to zero, and the D relay is energized. Figure 1 The green lights on the left and right sides are on.

[0030] When a car travels from left to right and passes the first infrared beam switch U5 of the photoelectric vehicle detection module on the left, the A1 relay is energized, the normally open contact of the A1 relay is closed, and the switch signal is sent to the first signal input terminal of the corresponding two-way wireless controller U3, and is transmitted to the two-way wireless controller U3 of another control subsystem through the two-way wireless controller U3. At the same time, the first output normally open contact of the two-way wireless controller U3 of the other control subsystem is closed, the A2 relay and the A3 relay are energized and closed, the normally open contact of the A2 relay is closed, and the normally closed contact of the A2 relay is disconnected.

[0031] When the vehicle passes through the second infrared beam switch U6 at the same time, the B1 relay is energized, the normally open contact of the B1 relay is closed, and the switch signal is sent to the corresponding second signal input terminal of the two-way wireless controller U3, and is transmitted to the two-way wireless controller U3 of another control subsystem through the two-way wireless controller U3. At the same time, the second output normally open contact of the two-way wireless controller U3 of another control subsystem is closed, the B3 relay is energized, the normally open contact of the B3 relay is closed, the C relay is energized, the normally open contact of the C relay is closed, and the addend input terminal of the addition and subtraction counting module U2 receives the switch signal, and the number changes. The output terminal of the addition and subtraction counting module U2 sends a signal, the originally energized optocoupler U1 loses power, the capacitor C4 delays discharge through the resistor R3, the transistor Q1 is turned off, the D and E relays are de-energized, and the green light of the other side of the vehicle passing platform turns red.

[0032] When there is another vehicle entering from the left side, the addition and subtraction counting module U2 on the other side will add 1 again. When the vehicle drives to the right-side passing platform, that is, the end point of the vehicle, it passes through the second infrared beam switch U6 of the control subsystem of the right-side passing platform. Since the light of the right-side passing platform is red at this time, the D relay and the E relay are in the power-off state. After the second infrared beam switch U6 detects the vehicle, the B2 relay and the B3 relay are energized, the normally closed contacts of the B2 relay and the B3 relay are disconnected, and the normally open contacts are closed. When the vehicle passes the first infrared beam switch U5 of the control subsystem of the right-side passing platform at the same time, the A3 relay is energized, the normally open contact of the A3 relay is closed, the C relay is energized, the C relay is closed, and the subtract input terminal of the addition and subtraction counting module U2 receives the signal, and the count is reduced by 1.

[0033] When the second vehicle traveling in the same direction approaches the passing platform on the right, it drives out like the previous vehicle, the count is reduced by 1 again, the counter returns to 0, the optocoupler U1 is energized, the transistor Q1 is turned on, the D and E relays are energized, and the red light on the passing platform on the right turns green.

[0034] When a car enters the interval between two passing platforms from left to right, after processing the matters, the car exits the interval from the left side along the original route, and the car exits to the second infrared radiation switch U6 on the left side, the B1 relay is energized, the green light of the passing platform in front turns to red, the B1 relay is energized, and the two-way feedback controller U3 is transmitted to the second signal input terminal of the two-way feedback controller U3 on the other side through wireless transmission, and the second output contact of the two-way feedback controller U3 on the other side is closed, the B3 relay and the B2 relay on the other side are energized, the normally open contact of the B3 relay is energized, the normally open contact of the B2 relay is energized, and the normally closed contact of the B2 relay is disconnected.

[0035] When the vehicle exits the first infrared counter-shooting switch U5 on the left side at the same time, the A1 relay is energized, the normally open contact of the A1 relay is energized, and the two-way feedback controller U3 on the left side is transmitted wirelessly to the first signal input end of the two-way feedback controller U3 on the other side, and the first output contact of the two-way feedback controller U3 on the other side is closed, the A3 relay is energized, the normally open contact of the A3 relay is energized, the C relay is energized, the normally open contact of the C relay is energized, and the subtraction signal of the addition and subtraction counting module U2 on the other side is transmitted to the counter, the counter returns to 0, and the red light turns green.

Claims

1. A single-lane photoelectric detection long-distance traffic light control system, characterized in that: The device is arranged in a tunnel between adjacent passing platforms, and includes two control subsystems. The two control subsystems are arranged near two passing platforms respectively. Each control subsystem includes a traffic light adjustment module, a bidirectional feedback controller (U3), a traffic light and a photoelectric vehicle detection module. The photoelectric vehicle detection module is used to detect whether a vehicle is passing by. The traffic light adjustment module is used to adjust the display of the traffic light. The detection output end of the photoelectric vehicle detection module is connected to the vehicle detection input end of the bidirectional feedback controller (U3). The traffic light adjustment output end of the bidirectional feedback controller (U3) is connected to the adjustment signal input end of the traffic light adjustment module. The adjustment output end of the traffic light adjustment module is connected to the traffic light adjustment input end. The data exchange terminals of the two groups of bidirectional feedback controllers (U3) of the control subsystems are connected to each other.

2. A single-lane photoelectric detection long-distance traffic light control system according to claim 1, characterized in that: The control subsystems also include an addition and subtraction counting module (U2), the counting output end of the bidirectional feedback controller (U3) is connected to the counting signal input end of the addition and subtraction counting module (U2), and the traffic light adjustment output end of the addition and subtraction counting module (U2) is connected to the adjustment signal input end of the traffic light adjustment module.

3. A single-lane photoelectric detection long-distance traffic light control system according to claim 2, characterized in that: It also includes an addition and subtraction counting circuit, wherein the addition and subtraction signal input end of the addition and subtraction counting circuit is connected to the addition and subtraction signal output end of the bidirectional feedback controller (U3), and the addition and subtraction signal output end of the addition and subtraction counting circuit is connected to the addition and subtraction signal input end of the addition and subtraction counting module (U2).

4. A single-lane photoelectric detection long-distance traffic light control system according to claim 3, characterized in that: It also includes a power supply circuit, which includes a transformer L1, the positive pole of the power input of the transformer L1 is connected to the live wire of the power supply, the negative pole of the power input of the transformer L1 is connected to the neutral wire of the power supply, the positive pole of the power output of the transformer L1 is connected to the positive input terminal of the rectifier VD1, the negative pole of the power output of the transformer L1 is connected to the negative input terminal of the rectifier VD1, the positive output terminal of the rectifier VD1 is connected to one end of the capacitor C1 and the power input terminal of the voltage regulator U4, and the other end of the capacitor C1 and the ground terminal of the voltage regulator U4 are both connected to the negative output terminal of the rectifier VD1; The traffic light adjustment module comprises a resistor R6, one end of which is connected to the output end of the addition and subtraction counting module (U2); the other end of the resistor R6 is connected to the positive electrode of the light-emitting diode D3; the negative electrode of the light-emitting diode D3 is connected to the positive electrode of the optical coupler U1; the negative electrode of the optical coupler U1 is connected to one end of the resistor R8; the other end of the resistor R8 is connected to the common end of the addition and subtraction counting module (U2); the collector of the optical coupler U1 is connected to one end of the resistor R5; the other end of the resistor R5 is connected to the voltage stabilization output end of the voltage stabilizer U4, one end of the capacitor C3, one end of the capacitor C2 and the positive end of the power supply of the addition and subtraction counting module (U2); the ground end of the voltage stabilizer U4, the other end of the capacitor C3, the other end of the capacitor C2 and the negative end of the power supply of the addition and subtraction counting module (U2) are all connected to the negative output end of the rectifier VD1; the emitter end of the optical coupler U1 is connected to one end of the resistor R4; the resistor R4 The other end is connected to one end of resistor R3 and one end of capacitor C4, the other end of resistor R3 is connected to the base of transistor Q1, the other end of capacitor C4 is connected to the negative output end of rectifier VD1, the positive output end of rectifier VD1 is connected to one end of capacitor C1, the power input end of voltage regulator U4, one end of D relay winding, the negative electrode of diode D1, one end of E relay winding and one end of resistor R2, the other end of resistor R2 is connected to the positive electrode of light-emitting diode D2, the other end of D relay winding, the positive electrode of diode D1, the other end of E relay winding and the negative electrode of light-emitting diode D2 are connected to the collector of transistor Q1, the emitter of transistor Q1 is connected to the negative output end of rectifier VD1, the common end of D relay is connected to the live wire of power supply, the normally closed contact of D relay is connected to the red light driving circuit, and the normally open contact of D relay is connected to the green light driving circuit.

5. A single-lane photoelectric detection long-distance traffic light control system according to claim 4, characterized in that: The photoelectric vehicle detection module comprises a first infrared beam switch (U5) and a second infrared beam switch (U6), wherein the positive pole of the power supply of the infrared emitting components of the first infrared beam switch (U5) and the second infrared beam switch (U6) is connected to the positive output end of the rectifier VD1, the negative pole of the power supply of the infrared emitting components of the first infrared beam switch (U5) and the second infrared beam switch (U6) is connected to the negative output end of the rectifier VD1, the positive pole of the power supply of the infrared receiving components of the first infrared beam switch (U5) and the second infrared beam switch (U6) is connected to the positive output end of the rectifier VD1, and the first infrared beam switch (U5) ) and the negative electrode of the infrared receiving component power supply of the second infrared counter-radiation switch (U6) are connected to the negative output terminal of the rectifier VD1, the detection output terminal of the first infrared counter-radiation switch (U5) is connected to the common terminal of the E relay, the normally open contact of the E relay is connected to one end of the A1 relay winding, the other end of the A1 relay winding is connected to the negative output terminal of the rectifier VD1, the normally open contact of the A1 relay is connected to the second signal input terminal of the bidirectional feedback controller (U3), the common terminal of the A1 relay is connected to the common terminal of the bidirectional feedback controller (U3), and the first output common terminal of the bidirectional feedback controller (U3) is connected to the positive output terminal of the rectifier VD1; The detection output end of the second infrared radiation switch (U6) is connected to the common end of the E relay, the normally open contact of the E relay is connected to one end of the B1 relay winding, the other end of the B1 relay winding is connected to the negative output end of the rectifier VD1, the normally open contact of the B1 relay is connected to the second signal input end of the bidirectional feedback controller (U3), and the common end of the B1 relay is connected to the common end of the bidirectional feedback controller (U3).

6. A single-lane photoelectric detection long-distance traffic light control system according to claim 4, characterized in that: The addition and subtraction counting circuit comprises a first output normally open contact of the bidirectional feedback controller (U3) connected to one end of the A3 relay winding, one end of the A2 relay winding and the cathode of the diode D5, the anode of the diode D5 connected to the normally closed contact of the E relay, the other end of the A3 relay winding connected to the cathode output end of the rectifier VD1, the other end of the A2 relay winding connected to the normally closed contact end of the B2 relay, and the common end of the B2 relay connected to the cathode output end of the rectifier VD1; The second output normally open contact of the bidirectional feedback controller (U3) is connected to one end of the B3 relay winding, one end of the B2 relay winding and the cathode of the diode D4, the anode of the diode D4 is connected to the normally closed contact of the E relay, the other end of the B3 relay winding is connected to the cathode output end of the rectifier VD1, the other end of the B2 relay winding is connected to the normally closed contact end of the A2 relay, and the common end of the A2 relay is connected to the cathode output end of the rectifier VD1; The common end of the A3 relay is connected to the positive output end of the rectifier VD1, the normally open contact end of the A3 relay is connected to one end of the C relay winding, the other end of the C relay winding is connected to the common end of the B3 relay, and the normally open contact end of the B3 relay is connected to the negative output end of the rectifier VD1; The C relay common end is connected to the negative output end of the rectifier VD1, the C relay normally open contact end is connected to the A2 relay common end and the B2 relay common end, the A2 relay normally open contact end is connected to the addend input end of the addition and subtraction counting module (U2), and the B2 relay normally open contact end is connected to the subtrahend input end of the addition and subtraction counting module (U2).

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