A safety warning device for high-speed toll lanes

Abstract

A safety warning device for a high-speed toll lane comprises a first induction circuit, a second induction circuit, a controller and an alarm circuit; the signal output ends of the first induction circuit and the second induction circuit are respectively connected to the signal input end of the controller, and the signal output end of the controller is connected to the alarm circuit; the first induction circuit and the second induction circuit both comprise induction coils, and the alarm circuit comprises a speaker. The utility model discloses a safety warning device for a high-speed toll lane, which is installed at a toll station on a highway to warn pedestrians passing between two islands, and when a vehicle enters the lane, reminds pedestrians not to pass, thereby ensuring the safety of pedestrians and avoiding the situation where pedestrians are hit by vehicles.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-speed toll passages, and in particular relates to a safety warning device for high-speed toll passages. Background Art

[0002] There are often islands at highway toll booths, and lanes are set up between the islands for vehicles to pass between. Sometimes, for work, staff often need to go back and forth between two islands, and the process of going back and forth requires crossing the lanes. This behavior is somewhat dangerous because the drivers of vehicles passing on the lanes will pay more attention to whether their vehicles are recognized on the toll booth screen and the vehicle toll information, and thus ignore whether there are people around. If the staff crosses the lane at this time, it will bring great hidden dangers to the personal safety of the staff.

[0003] To solve this problem, the prior art proposes to set up an induction coil at the island of a highway toll station. When a vehicle passes by, the induction coil will emit a current signal, such as the authorization announcement number: CN

[0004] Patent document 212750095U discloses a warning device and lane safety warning system for highway toll stations. It discloses the following technical solutions: the warning device for highway toll stations, wherein the warning device is arranged on at least one toll island in the highway toll station, and both sides of each of the at least one toll island are driving lanes, and the warning device includes a box and at least one warning component arranged on the box, and each of the at least one warning component includes a signal light, a speaker, a display module and a control module, and the control module is electrically connected to the signal light, the speaker and the display module respectively. The warning device and lane safety warning system for highway toll stations provided by the utility model can be arranged and installed along the safe walking route of each highway toll station square, reducing the safety risk of toll station staff.

[0005] The system can greatly improve the safety of highway toll stations, but the system cannot give timely alarm prompts for the phenomenon that a vehicle drives out of the rear induction coil and then reverses, which still affects the safety of pedestrians. Because sometimes, after a vehicle drives out of the rear induction coil, it cannot be identified and reverses back. In this case, the existing system cannot identify it and cannot warn pedestrians; in addition, the existing warning system will directly send the collected signals to the controller, which will generate error signals, increasing the controller's signal processing capacity, resulting in higher power consumption. Utility Model Content

[0006] The utility model aims to provide a high-speed toll channel safety warning device which is easy to use and has good use effect.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] A high-speed toll lane safety warning device comprises a first induction circuit, a second induction circuit, a controller and an alarm circuit; the signal output ends of the first induction circuit and the second induction circuit are respectively connected to the signal input end of the controller, and the signal output end of the controller is connected to the alarm circuit; the first induction circuit and the second induction circuit both comprise induction coils, and the alarm circuit comprises a speaker.

[0009] The first induction circuit and the second induction circuit also include a signal amplification circuit, which includes a voltage follower and a voltage amplifier connected to the induction coil in sequence; the non-phase input terminal of the voltage follower is connected to the induction coil, the inverting input terminal of the voltage follower is connected to the output terminal of the voltage follower, the output terminal of the voltage follower is connected to the inverting input terminal of the voltage amplifier through a first resistor, the non-phase input terminal of the voltage amplifier is grounded, the output terminal of the voltage amplifier is connected to the inverting input terminal of the voltage amplifier, and the output terminal of the voltage amplifier is connected to the signal input terminal of the controller.

[0010] The output end of the voltage amplifier is connected with a voltage regulator tube, the negative electrode of the voltage regulator tube is connected to the output end of the voltage follower, and the positive electrode of the voltage regulator tube is connected to the signal input end of the controller.

[0011] The positive pole of the voltage regulator is connected to the signal input terminal of the controller through an optical coupler.

[0012] The alarm circuit also includes a second resistor, a transistor and a light emitting diode; the signal output end of the controller is connected to the base of the transistor through the second resistor, and the collector of the transistor is connected to a DC power supply through a speaker; at the same time, the DC power supply is connected to the positive electrode of the light emitting diode, and the negative electrode of the light emitting diode is connected to the collector of the transistor; the emitter of the transistor is grounded.

[0013] The invention also comprises a box body, in which the controller is installed, and a digital quantity input port and a digital quantity output port are reserved on the box body.

[0014] The first induction coil is located at the entrance of the toll channel, and the second induction coil is located at the exit of the toll channel; a third induction coil is arranged behind the second induction coil, and the third induction coil also transmits the collected signal to the controller.

[0015] A proximity switch is arranged in front of the first induction coil and is located at the side of the toll channel; a signal output end of the proximity switch is connected to a signal input end of the controller.

[0016] A mounting rod is provided on the side of the toll channel, and a proximity switch is installed on the mounting rod; a plurality of proximity switches are installed on the same mounting rod, and the plurality of proximity switches are distributed in sequence along the height direction of the mounting rod.

[0017] Through the above technical scheme, the technical effects of the utility model are as follows: The utility model discloses a high-speed toll channel safety warning device, which is installed at a highway toll station to warn pedestrians walking between two islands. When a vehicle enters the lane, it reminds pedestrians not to pass, thereby ensuring the safety of pedestrians and avoiding pedestrians being hit by vehicles. 2. By setting a signal amplification circuit to process the signals of the first induction circuit and the second induction circuit, on the one hand, the accuracy of the collection results can be guaranteed. In addition, the voltage regulator can only be transmitted to the controller when the signal is large enough, which reduces the controller's signal processing volume, thereby reducing power consumption. In addition, it also ensures the stability of the signal entering the controller and improves the service life of the controller. 3. The optocoupler set on the voltage amplifier can prevent the controller from being affected by external signals and ensure the stability of the controller. 4. The proximity switch set can give an early warning before the vehicle enters the lane, further improving the safety of pedestrians. 5. By setting multiple induction coils on the lane, the stability and accuracy of the system are ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a connection diagram of Example 1;

[0019] Figure 2 This is a principle block diagram of Example 2;

[0020] Figure 3 This is a structural schematic diagram of Example 2;

[0021] Figure 4 This is the circuit schematic diagram of Example 2;

[0022] Figure 5 This is the schematic diagram of the signal amplification circuit;

[0023] Figure 6 This is a functional block diagram of Example 3. DETAILED DESCRIPTION

[0024] Embodiment 1, a safety warning device for a high-speed toll lane, the present application is used to warn pedestrians when they are walking between two islands, a lane is set between the two islands, wherein the process of a vehicle entering the lane is: first enter the front end of the lane, then enter the rear end of the lane, and finally drive out from the rear end of the lane.

[0025] Among them, Figure 1 As shown, the safety warning device includes a first sensing circuit 1, a second sensing circuit 2, a controller and an alarm circuit. The first sensing circuit 1 and the second sensing circuit 2 are used to sense whether there is a vehicle, and the controller is used to receive a vehicle signal and transmit a signal to the alarm circuit according to the signal. The alarm circuit emits an alarm sound when there is a vehicle signal to warn pedestrians.

[0026] Among them, the controller includes a single-chip microcomputer U1. This embodiment is described by taking the STM32 single-chip microcomputer U1 as an example. The single-chip microcomputer U1 with model number stm32f103c8t6 is used. The single-chip microcomputer U1 is connected with peripheral circuits, power supply circuits, crystal oscillator circuits and reset circuits. This circuit is a mature existing technology and will not be repeated in this embodiment.

[0027] The signal output ends of the first induction circuit 1 and the second induction circuit 2 are respectively connected to the signal input end of the single chip computer U1. The first induction circuit 1 and the second induction circuit 2 have the same composition and both include induction coils.

[0028] In order to process the induction signal, the first induction circuit 1 and the second induction circuit 2 further include a signal amplification circuit, and the signal amplification circuit includes a voltage follower U3 and a voltage amplifier U4 which are sequentially connected to the induction coil.

[0029] The non-inverting input terminal of the voltage follower U3 is connected to the induction coil, the inverting input terminal of the voltage follower U3 is connected to the output terminal of the voltage follower U3, the output terminal of the voltage follower U3 is connected to the inverting input terminal of the voltage amplifier U4 through the first resistor R1, the non-inverting input terminal of the voltage amplifier U4 is grounded, the output terminal of the voltage amplifier U4 is connected to the inverting input terminal of the voltage amplifier U4, and at the same time, the output terminal of the voltage amplifier U4 is connected to the Zener diode D1, the negative pole of the Zener diode D1 is connected to the output terminal of the voltage amplifier U4, and the positive pole of the Zener diode D1 is connected to the signal input terminal (pin PA0) of the microcontroller U1 through the optocoupler U5.

[0030] By setting up a signal amplification circuit to process the signals of the first induction circuit 1 and the second induction circuit 2, on the one hand, the accuracy of the collected results can be guaranteed. In addition, the voltage regulator D1 can only transmit the signal to the single-chip microcomputer U1 when the signal is large enough, which reduces the signal processing amount of the single-chip microcomputer U1, thereby reducing power consumption. In addition, it also ensures the stability of the signal entering the single-chip microcomputer U1 and improves the service life of the single-chip microcomputer U1; the optocoupler U5 set on the voltage amplifier U4 can prevent the single-chip microcomputer U1 from being affected by external signals and ensure the stability of the single-chip microcomputer U1.

[0031] The alarm circuit is used to issue a warning sound when a vehicle passes by, wherein the alarm circuit also includes a second resistor R2, a transistor Q1 and a light-emitting diode D2; the signal output end (pin PA12) of the single-chip computer U1 is connected to the base of the transistor Q1 through the second resistor R2, and the collector of the transistor Q1 is connected to a DC power supply through a speaker BJ; at the same time, the DC power supply is connected to the positive electrode of the light-emitting diode D2, and the negative electrode of the light-emitting diode D2 is connected to the collector of the transistor Q1; the emitter of the transistor Q1 is grounded.

[0032] When working, when the processor determines that a vehicle passes through the induction coil of the first induction circuit 1 according to the received signal, the processor outputs a signal to the alarm circuit, so that the transistor Q1 is turned on, the light-emitting diode D2 emits light, and the speaker BJ emits a warning sound.

[0033] At the same time, in order to facilitate display, the signal output end of the single-chip microcomputer U1 is connected with a display device 11, which includes a display screen U2 (model: lcd12864). Through the display screen U2, when there is vehicle communication, it is displayed. When working, the signal output end (pins PA3, PA4, PA5, PA6, PA7, PB0, PB1, PB2) of the single-chip microcomputer U1 is connected to the input end (pins DB0-DB7) of the display screen U2.

[0034] In this embodiment, the light emitting diode D2 is installed at the entrance of the pedestrian passage to warn pedestrians. In the drawings of this embodiment, only one light emitting diode D2 is shown. If you want it to be more conspicuous, you can connect an LED light array to the signal output end of the single chip microcomputer to warn pedestrians.

[0035] In order to ensure subsequent use, the device includes a box body 4, in which the single chip U1 is installed, and a digital input port 5 and a digital output port 6 are reserved on the box body 4. The digital input port 5 and the digital output port 6 are used to achieve external expansion. When there is a need in the future, it is only necessary to connect the corresponding acquisition device to the digital input port 5 and the corresponding drive device to the corresponding digital output port 6.

[0036] There are 3 digital input ports 5, which are connected to the signal input terminals (pins PA13, PA14, and PA15) of the microcontroller U1 respectively; there are 3 digital output ports 6, which are connected to the signal output terminals (pins PB5, PB6, and PB7) of the microcontroller U1 respectively. If there is no need, the digital input ports 5 and 6 can be left floating, and they can be connected to external devices if necessary.

[0037] To ensure the use effect, the layout of the first induction coil and the second induction coil is stipulated as follows: the first induction coil is located at the entrance of the toll channel, and the second induction coil is located at the exit of the toll channel; at the same time, in order to solve the problem of the subsequent vehicle reversing after passing the second induction coil, there is a third induction circuit 3 behind the second induction coil. The third induction circuit 3 includes a third induction coil, and the third induction coil is also connected to a signal amplification circuit. The signal amplification circuit is the same as that of the first induction coil and the second induction coil, and will not be repeated here. The third induction coil also transmits the collected signal to the single-chip computer U1 through the signal amplification circuit.

[0038] When in use, when the first induction coil senses a signal, the signal is transmitted to the single-chip microcomputer U1 after passing through the signal amplification circuit, and the single-chip microcomputer U1 outputs a signal alarm circuit to sound and light alarm; when the second induction coil senses a signal, the single-chip microcomputer U1 outputs a signal to stop the sound and light alarm circuit. When the second induction coil senses a signal, the third induction coil senses a signal again, which means that the vehicle has reversed again. In this case, the sound and light alarm circuit continues to sound and light alarm. By adding a third induction coil, this embodiment can alleviate the alarm problem when the vehicle is reversing on the lane.

[0039] Embodiment 2. This embodiment differs from Embodiment 1 in that: in order to provide early warning, a proximity detection device 7 is provided in front of the first induction coil. The proximity detection device 7 includes a proximity switch U7. The proximity switch U7 is located on the side of the lane 9. The signal output end of the proximity switch U7 is connected to the signal input end (pin PB12) of the single-chip computer U1.

[0040] Before the vehicle enters the lane 9, the proximity switch U7 first collects the vehicle information and transmits the collected information to the single-chip microcomputer U1. The single-chip microcomputer U1 outputs a signal to the display device 11, wherein the display device 11 includes a display screen U2, and the display screen U2 displays "The vehicle is about to enter the lane, please pay attention!", thereby warning pedestrians.

[0041] In order to realize the installation of the proximity switch U7, a mounting rod 8 is provided on the side of the lane 9, and the proximity switch U7 is installed on the mounting rod; multiple proximity switches U7 are installed on the same mounting rod 8, and the multiple proximity switches U7 are distributed in sequence along the height direction of the mounting rod, so that vehicle information at different heights can be collected.

[0042] When working, the vehicle drives towards lane 9. Before entering lane 9, it is first collected by the proximity switch U7. The proximity switch U7 transmits the collected information to the single-chip microcomputer U1. The single-chip microcomputer U1 outputs a signal to the display screen U2, and a warning message is displayed on the display screen U2. Then the vehicle continues to move forward and enters lane 9. It is collected by the first induction coil. The first induction coil transmits the collected information to the single-chip microcomputer U1. The single-chip microcomputer U1 outputs a signal to the alarm circuit and the display screen U2 according to the received signal. The alarm circuit sends out an audible and visual alarm. At the same time, the display screen U2 warns "Vehicles passing, no entry". Pedestrians are waiting on the island 10 at this time; the vehicle continues to move forward until it is collected by the second induction coil. After receiving the information, the single-chip microcomputer U1 outputs a signal to the audible and visual alarm circuit and the display screen U2, stops the audible and visual alarm and display, and pedestrians can enter lane 9 from the island 10, thereby crossing lane 9 to the island 10 on the other side.

[0043] During operation, when the second induction coil senses the vehicle and the third induction coil senses the vehicle, it is determined that the vehicle is reversing, and the single-chip microcomputer U1 continues to send warning information to the alarm circuit and the display screen U2, and the sound and light alarm and the display screen U2 are displayed until the first induction coil senses the vehicle information, and the single-chip microcomputer U1 stops sending warning information to the alarm circuit and the display screen U2.

[0044] The problem of vehicle reversing on the lane can be greatly solved by setting the third induction coil.

[0045] Embodiment 3, this embodiment is different from embodiment 1 in that: this embodiment is applicable to toll stations on expressways with heavy traffic. Multiple induction coils are laid along the direction of vehicle travel on the lane, and the spacing between adjacent induction coils is 1.5m; each induction coil is connected to a signal amplification circuit, and the signal is transmitted to the single-chip microcomputer U1 through the signal amplification circuit, and the single-chip microcomputer U1 sends a signal to the alarm circuit and the display screen U2.

[0046] In this way, as long as any induction coil collects vehicle information, the single-chip computer U1 will output a signal to the alarm circuit and the display screen U2 for warning, thus avoiding the problem that there are multiple vehicles on one lane and the single-chip computer U1 receives disordered signals from the first induction coil, the second induction coil and the third induction coil. When implemented, the situation of Example 1 is applicable to some highway toll stations with low traffic volume, where there is generally only one vehicle on the lane.

[0047] The situation of this embodiment is applicable to toll stations on expressways with heavy traffic volume. There may be multiple vehicles on the lanes of such toll stations, and there may even be a queue of vehicles.

[0048] The utility model discloses a safety warning device for a high-speed toll lane. The device is installed at a toll station on a highway to warn pedestrians walking between two islands. When a vehicle enters the lane, the device reminds pedestrians not to pass, thereby ensuring the safety of pedestrians and avoiding the situation where pedestrians are hit by vehicles.

Claims

1. A safety warning device for a high-speed toll lane, characterized in that: It includes a first induction circuit, a second induction circuit, a controller and an alarm circuit; the signal output ends of the first induction circuit and the second induction circuit are respectively connected to the signal input end of the controller, and the signal output end of the controller is connected to the alarm circuit; the first induction circuit and the second induction circuit both include induction coils, and the alarm circuit includes a speaker.

2. The high-speed toll lane safety warning device according to claim 1, characterized in that: The first induction circuit and the second induction circuit also include a signal amplification circuit, which includes a voltage follower and a voltage amplifier connected to the induction coil in sequence; the non-phase input terminal of the voltage follower is connected to the induction coil, the inverting input terminal of the voltage follower is connected to the output terminal of the voltage follower, the output terminal of the voltage follower is connected to the inverting input terminal of the voltage amplifier through a first resistor, the non-phase input terminal of the voltage amplifier is grounded, the output terminal of the voltage amplifier is connected to the inverting input terminal of the voltage amplifier, and the output terminal of the voltage amplifier is connected to the signal input terminal of the controller.

3. The high-speed toll lane safety warning device according to claim 2, characterized in that: The output end of the voltage amplifier is connected with a voltage regulator tube, the negative electrode of the voltage regulator tube is connected to the output end of the voltage follower, and the positive electrode of the voltage regulator tube is connected to the signal input end of the controller.

4. The high-speed toll lane safety warning device according to claim 3, characterized in that: The positive pole of the voltage regulator is connected to the signal input terminal of the controller through an optical coupler.

5. The high-speed toll lane safety warning device according to any one of claims 1 to 4, characterized in that: The alarm circuit also includes a second resistor, a transistor and a light emitting diode; the signal output end of the controller is connected to the base of the transistor through the second resistor, and the collector of the transistor is connected to a DC power supply through a speaker; at the same time, the DC power supply is connected to the positive electrode of the light emitting diode, and the negative electrode of the light emitting diode is connected to the collector of the transistor; the emitter of the transistor is grounded.

6. The high-speed toll lane safety warning device according to claim 5, characterized in that: The invention also comprises a box body, in which the controller is installed, and a digital quantity input port and a digital quantity output port are reserved on the box body.

7. The high-speed toll lane safety warning device according to claim 6, characterized in that: The first induction coil is located at the entrance of the toll channel, and the second induction coil is located at the exit of the toll channel; a third induction coil is arranged behind the second induction coil, and the third induction coil also transmits the collected signal to the controller.

8. The high-speed toll lane safety warning device according to claim 7, characterized in that: A proximity switch is arranged in front of the first induction coil and is located at the side of the toll channel; a signal output end of the proximity switch is connected to a signal input end of the controller.

9. The high-speed toll lane safety warning device according to claim 8, characterized in that: A mounting rod is provided on the side of the toll channel, and a proximity switch is installed on the mounting rod; a plurality of proximity switches are installed on the same mounting rod, and the plurality of proximity switches are distributed in sequence along the height direction of the mounting rod.

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