A self-powered wireless pedestrian intersection traffic guidance lamp device

Abstract

The utility model relates to traffic signal equipment technical field, and disclose a kind of self-generating wireless pedestrian intersection traffic direction lamp device, including pedestrian button device and receiving end;The pedestrian button device includes button body, and self-generating module, rectifier voltage stabilizing module and sending end circuit module are arranged in the button body;The input of self-generating module is electrically connected with the rectifier voltage stabilizing module, and the output of rectifier voltage stabilizing module is electrically connected with the sending end circuit module, and the sending end circuit module is powered, and the self-generating wireless pedestrian intersection traffic direction lamp device, through button pressing linkage self-generating, without external power supply or battery, completely save the work of line laying and battery replacement, reduce maintenance cost while avoiding environmental pollution caused by battery abandonment;433.92MHz wireless communication is used by sending end and receiving end, without laying signal line, applicable to temporary intersection, old intersection reconstruction and other scenes, reduce installation cost.

Description

Technical Field

[0001] This utility model relates to the field of traffic signal equipment technology, specifically a self-generating wireless pedestrian traffic guidance light device. Background Technology

[0002] At urban pedestrian intersections, especially during peak hours such as school dismissal times and shopping mall rush hours, conflicts between pedestrians and vehicles can easily lead to safety accidents. To address this issue, existing technologies typically use traffic guidance lights in conjunction with pedestrian buttons: when a pedestrian presses the button, the traffic guidance light flashes, prompting passing vehicles to stop and give way. Once the pedestrian has safely crossed the street, the guidance light stops flashing, and vehicles can then resume traffic, effectively reducing the risk of pedestrians and vehicles vying for road space.

[0003] However, existing traffic light devices use external power supplies, requiring the laying of dedicated power lines. If there is no nearby power interface at the intersection, the cost of laying the lines is high, the construction period is long, and it is greatly restricted by the site environment such as roads and green belts. Some existing devices use battery power, which requires regular disassembly and replacement of batteries (usually every 1-3 months). The maintenance frequency is high and the labor cost is high. If maintenance is not timely, the device is prone to failure and becomes a decoration, failing to guarantee pedestrian safety. In view of this, we propose a self-generated wireless pedestrian traffic light device for intersections. Utility Model Content

[0004] The purpose of this invention is to provide a self-generating wireless pedestrian traffic guidance light device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-generating wireless pedestrian intersection traffic guidance light device, including a pedestrian button device and a receiver; The pedestrian button device includes a button body, which contains a self-generating module, a rectifier and voltage regulator module, and a transmitting circuit module. The self-generating module is electrically connected to the input terminal of the rectifier and voltage regulator module, and the output terminal of the rectifier and voltage regulator module is electrically connected to the transmitting circuit module to supply power to the transmitting circuit module. The button body is provided with a pressable button K1. The button K1 is mechanically linked with the self-generating module, and when the button K1 is pressed, it can trigger the trigger key S1 of the transmitting end circuit module. The transmitting circuit module includes a transmitting chip CMT2150L and an antenna ANT1. The RFIN pin of the transmitting chip CMT2150L is connected to the antenna ANT1 and is used to transmit an OOK modulated signal. The receiving end includes a receiving housing, inside which a receiving circuit module and an MCU control module are disposed, and outside the receiving housing is a traffic guidance light; the receiving circuit module includes a receiving chip CMT2210LC and an antenna ANT2, the output terminal of the receiving chip CMT2210LC is electrically connected to the input terminal of the MCU control module, and the output terminal of the MCU control module is electrically connected to the traffic guidance light for controlling the flashing of the traffic guidance light.

[0006] Optionally, the self-generating module is a coil assembly, which includes a coil and a fixed magnet; when the button K1 is pressed, it drives the coil to move linearly along the axis of the fixed magnet, cutting the magnetic lines of force to generate AC current with a peak voltage of 3-5V.

[0007] Optionally, the rectifier and voltage regulator module includes four 1N4001 rectifier diodes, a current-limiting resistor R2, a Zener diode D6, a capacitor C1, and a generating capacitor C2. The four rectifier diodes form a full-wave rectifier circuit. The current-limiting resistor R2 has a resistance of 1kΩ. The Zener diode D6 is a TL431 with a voltage regulation of 3.3V. The capacitor C1 is 100μF / 16V, and the capacitor C2 is 0.1μF. The output terminal of the full-wave rectifier circuit is connected in series with the current-limiting resistor R2 and the Zener diode D6. The capacitors C1 and C2 are connected in parallel across the Zener diode D6 to form a voltage regulation and filtering circuit, outputting 3.3V DC.

[0008] Optionally, the transmitting chip CMT2150L operates at a frequency of 433.92MHz and uses the 1527 encoding format; the receiving chip CMT2210LC operates at a frequency of 433.92MHz, which is matched with the transmitting chip CMT2150L, ​​and has a receiving sensitivity of -110dBm.

[0009] Optionally, the receiver housing is further provided with a time adjustment component, which includes a button S2 and indicator lights D7, D8, and D9, all of which are green LEDs. The button S2 is electrically connected to the I / O port of the MCU control module, and the indicator lights D7, D8, and D9 are electrically connected to the output terminal of the MCU control module through 100Ω current-limiting resistors. The MCU control module has three preset traffic guidance light flashing times: 1 minute, 2 minutes, and 3 minutes. Pressing the button S2 can switch the flashing time level, and the indicator light of the corresponding level will light up.

[0010] Optionally, a transistor Q1, model S8050, is connected in series between the MCU control module and the traffic guide light. The base of transistor Q1 is electrically connected to the output terminal of the MCU control module through a 1kΩ current-limiting resistor, the collector is electrically connected to the anode of the traffic guide light, and the emitter is grounded. When the MCU control module outputs a high level, transistor Q1 is turned on, and the traffic guide light flashes; when it outputs a low level, transistor Q1 is turned off, and the traffic guide light is turned off.

[0011] Optionally, the transmitting circuit module further includes an indicator light D4, which is a red LED. The anode of the indicator light D4 is connected to the output terminal of the rectifier and voltage regulator module through a 100Ω current-limiting resistor, and the cathode is connected to the status output pin of the transmitting chip CMT2150L. When the transmitting chip CMT2150L is working, the indicator light D4 is lit, indicating that the button operation has been triggered.

[0012] Compared with the prior art, this utility model provides a self-generating wireless pedestrian intersection traffic guidance light device, which has the following beneficial effects: 1. This self-generating wireless pedestrian traffic light device generates its own power by pressing a button, eliminating the need for an external power source or battery. This completely eliminates the need for wiring and battery replacement, reducing maintenance costs and avoiding environmental pollution caused by discarded batteries. The transmitter and receiver use 433.92MHz wireless communication, eliminating the need for signal lines. It is suitable for temporary intersections, renovations of old intersections, and other scenarios, reducing installation costs.

[0013] 2. This self-generated wireless pedestrian traffic guidance light device supports three levels of flashing time adjustment from 1 to 3 minutes, which can be flexibly set according to the pedestrian flow and road width at the intersection to ensure the safety of pedestrians crossing the street in different scenarios. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the circuit structure of the self-generating module and the rectifier and voltage regulator module of this utility model; Figure 2 This is a schematic diagram of the receiving end circuit structure of this utility model; Figure 3 This is a schematic diagram of the transmitting circuit module structure of this utility model. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1-3 As shown, this utility model provides a technical solution: a self-generating wireless pedestrian intersection traffic guidance light device, including a pedestrian button device and a receiver; The pedestrian button device includes a button body, which contains a self-generating module, a rectifier and voltage regulator module, and a transmitting circuit module. The self-generating module is electrically connected to the input terminal of the rectifier and voltage regulator module, and the output terminal of the rectifier and voltage regulator module is electrically connected to the transmitting circuit module to supply power to the transmitting circuit module. The button body is equipped with a pressable button K1. Button K1 is mechanically linked to the self-generating module, and when button K1 is pressed, it can trigger the trigger key S1 of the transmitting circuit module. The self-generating module is a coil assembly, which includes a coil and a fixed magnet. When button K1 is pressed, it drives the coil to move linearly along the axis of the fixed magnet, cutting the magnetic lines of force to generate AC current with a peak voltage of 3-5V.

[0017] The transmitting circuit module includes a transmitting chip CMT2150L and an antenna ANT1. The RFIN pin of the transmitting chip CMT2150L is connected to the antenna ANT1 for transmitting OOK modulated signals. The transmitting chip CMT2150L operates at a frequency of 433.92MHz and uses the 1527 encoding format. The receiving chip CMT2210LC operates at the same frequency as the transmitting chip CMT2150L, ​​which is 433.92MHz, and has a receiving sensitivity of -110dBm.

[0018] The receiver includes a receiver housing containing a receiver circuit module and an MCU control module. A traffic guide light is located outside the receiver housing. The receiver circuit module includes a receiver chip CMT2210LC and an antenna ANT2. The output of the CMT2210LC is electrically connected to the input of the MCU control module, and the output of the MCU control module is electrically connected to the traffic guide light to control its flashing. A time adjustment component is also located outside the receiver housing, consisting of a button S2 and indicator lights D7, D8, and D9, all of which are green LEDs. Button S2 is electrically connected to the I / O port of the MCU control module, and indicator lights D7, D8, and D9 are each electrically connected to the output of the MCU control module through a 100Ω current-limiting resistor. The MCU control module has preset flashing times of 1 minute, 2 minutes, and 3 minutes. Pressing button S2 switches between flashing time levels, and the corresponding indicator light illuminates.

[0019] The rectifier and voltage regulator module includes four 1N4001 rectifier diodes, a current-limiting resistor R2, a Zener diode D6, a capacitor C1, and a generating capacitor C2. The four rectifier diodes form a full-wave rectifier circuit. The current-limiting resistor R2 has a resistance of 1kΩ. The Zener diode D6 is a TL431 with a voltage regulation of 3.3V. The capacitor C1 is 100μF / 16V, and the capacitor C2 is 0.1μF. At the output of the full-wave rectifier circuit, the current-limiting resistor R2 and the Zener diode D6 are connected in series. The capacitors C1 and C2 are connected in parallel across the Zener diode D6 to form a voltage regulation and filtering circuit, outputting 3.3V DC.

[0020] The MCU control module is connected in series with the traffic light via a transistor Q1, which is an S8050. The base of transistor Q1 is electrically connected to the output of the MCU control module through a 1kΩ current-limiting resistor, the collector is electrically connected to the anode of the traffic light, and the emitter is grounded. When the MCU control module outputs a high level, transistor Q1 is turned on, and the traffic light flashes; when the output is low, transistor Q1 is turned off, and the traffic light is turned off.

[0021] The transmitting circuit module also includes indicator light D4, which is a red LED. The anode of indicator light D4 is connected to the output terminal of the rectifier and voltage regulator module through a 100Ω current-limiting resistor, and the cathode is connected to the status output pin of the transmitting chip CMT2150L. When the transmitting chip CMT2150L is working, indicator light D4 is lit, indicating that the button operation has been triggered.

[0022] The coil is made of enameled copper wire with 500 turns and an inner diameter of 10mm; the antenna ANT1 is a PCB printed antenna with a length of 17cm and is compatible with the 433.92MHz frequency band; the MCU control module uses a microcontroller of model STM32F030F4P6.

[0023] As one application of this embodiment: When a pedestrian needs to cross the street, the self-generating module, the rectifier and voltage regulator module, and the pedestrian button device press button K1: Button K1 drives the coil 111 of the self-generating module 11 to move along the axis of the fixed magnet 112 via a connecting rod, cutting the magnetic lines of force to generate 3-5V AC power; after the AC power is rectified by the full wave rectifier and voltage regulator module 12 (D1-D4), current limited by R2, voltage regulated by D6, and filtered by C1-C2, it outputs 3.3V DC power to power the transmitting circuit module 13; When button K1 is pressed all the way down, it triggers the trigger key S1, activating the CMT2150L transmitter chip. The trigger signal is encoded into an OOK modulated signal using the 1527 encoding format and transmitted through antenna ANT1 at a frequency of 433.92MHz. At the same time, the status indicator D4 lights up, indicating to pedestrians that "operation has been triggered". The power generated by a single press can sustain the CMT2150L for 1-2 seconds, ensuring complete signal transmission.

[0024] The receiving end receives signals from the transmitting end in real time. The working process is as follows: The CMT2210LC receiving chip of the receiving circuit module 21 receives the OOK modulated signal through the antenna ANT2. After decoding, the trigger signal is transmitted to the MCU control module 22 through the DATA1 pin. After receiving the trigger signal, the MCU outputs a high level to the base of the transistor Q1. Q1 is turned on, and the traffic guide light 23 starts to flash, prompting vehicles to stop and give way. The flashing time of the guide light is determined by the currently set gear (e.g., if D8 is currently lit, it corresponds to 2 minutes). The MCU's internal timer starts counting. After the countdown ends, the MCU outputs a low level, Q1 is turned off, the traffic guide light 23 stops flashing, and vehicles resume traffic. If it is necessary to adjust the flashing time, press the button S2 on the receiving end. Each press switches the gear, and the corresponding indicator light (D7 / D8 / D9) lights up. The MCU automatically saves the current gear.

[0025] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A self-generating wireless pedestrian intersection traffic guidance light device, characterized in that, Includes pedestrian button devices and receivers; The pedestrian button device includes a button body, which contains a self-generating module, a rectifier and voltage regulator module, and a transmitting circuit module. The self-generating module is electrically connected to the input terminal of the rectifier and voltage regulator module, and the output terminal of the rectifier and voltage regulator module is electrically connected to the transmitting circuit module to supply power to the transmitting circuit module. The button body is provided with a pressable button K1. The button K1 is mechanically linked with the self-generating module, and when the button K1 is pressed, it can trigger the trigger key S1 of the transmitting end circuit module. The transmitting circuit module includes a transmitting chip CMT2150L and an antenna ANT1. The RFIN pin of the transmitting chip CMT2150L is connected to the antenna ANT1 and is used to transmit an OOK modulated signal. The receiving end includes a receiving housing, inside which a receiving circuit module and an MCU control module are disposed, and outside the receiving housing is a traffic guidance light; the receiving circuit module includes a receiving chip CMT2210LC and an antenna ANT2, the output terminal of the receiving chip CMT2210LC is electrically connected to the input terminal of the MCU control module, and the output terminal of the MCU control module is electrically connected to the traffic guidance light for controlling the flashing of the traffic guidance light.

2. The self-generating wireless pedestrian traffic guidance light device according to claim 1, characterized in that, The self-generating module is a coil assembly, which includes a coil and a fixed magnet. When the button K1 is pressed, it drives the coil to move linearly along the axis of the fixed magnet, cutting the magnetic lines of force to generate AC current with a peak voltage of 3-5V.

3. The self-generating wireless pedestrian traffic guidance light device according to claim 1, characterized in that, The rectifier and voltage regulator module includes four sets of rectifier diodes, a current-limiting resistor R2, a Zener diode D6, a capacitor C1, and a capacitor C2. The four sets of rectifier diodes form a full-wave rectifier circuit. The output terminal of the full-wave rectifier circuit is connected in series with the current-limiting resistor R2 and the Zener diode D6. The capacitors C1 and C2 are connected in parallel across the Zener diode D6 to form a voltage regulator and filter circuit, which outputs 3.3V DC.

4. The self-generating wireless pedestrian traffic guidance light device according to claim 1, characterized in that, The transmitting chip CMT2150L operates at a frequency of 433.92MHz and uses the 1527 encoding format; the receiving chip CMT2210LC operates at the same frequency of 433.92MHz as the transmitting chip CMT2150L, ​​and has a receiving sensitivity of -110dBm.

5. A self-generating wireless pedestrian traffic guidance light device according to claim 1, characterized in that, The receiver housing is also equipped with a time adjustment component, which includes a button S2 and indicator lights D7, D8, and D9. The button S2 is electrically connected to the I / O port of the MCU control module, and the indicator lights D7, D8, and D9 are electrically connected to the output terminal of the MCU control module through 100Ω current-limiting resistors. The MCU control module has three preset traffic guide light flashing times of 1 minute, 2 minutes, and 3 minutes. Pressing the button S2 can switch the flashing time level, and the indicator light of the corresponding level will light up.

6. A self-generating wireless pedestrian traffic guidance light device according to claim 1, characterized in that, A transistor Q1 is connected in series between the MCU control module and the traffic guide light. The base of the transistor Q1 is electrically connected to the output terminal of the MCU control module through a 1kΩ current-limiting resistor, the collector is electrically connected to the anode of the traffic guide light, and the emitter is grounded. When the MCU control module outputs a high level, the transistor Q1 is turned on, and the traffic guide light flashes; when it outputs a low level, the transistor Q1 is turned off, and the traffic guide light is turned off.

7. A self-generating wireless pedestrian traffic guidance light device according to claim 1, characterized in that, The transmitting circuit module also includes an indicator light D4; the anode of the indicator light D4 is connected to the output terminal of the rectifier and voltage regulator module through a 100Ω current-limiting resistor, and the cathode is connected to the status output pin of the transmitting chip CMT2150L; when the transmitting chip CMT2150L is working, the indicator light D4 is lit, indicating that the button operation has been triggered.

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