Circuit structure of intelligent traffic sign device

Abstract

The invention provides a circuit structure of an intelligent traffic sign device, which comprises a main control module, a sensor module, a power supply module, a display driving module, a communication module and a user interaction module, and is characterized in that the sensor module is connected with a first input end of the main control module, and the power supply module is connected with a second input end of the main control module; the communication module is connected with a third input end of the master control module, the user interaction module is connected with a fourth input end of the master control module, a first output end of the master control module is connected with the display driving module, and a second output end of the master control module is connected with the communication module. The circuit structure of the intelligent traffic sign device integrating the sensor, wireless communication and solar energy-lithium battery dual-mode power supply is provided, the environmental adaptability is high, and information is timely.

Description

Technical Field

[0001] The present invention relates to the field of intelligent traffic management, and in particular to the circuit structure of an intelligent traffic sign device. Background Art

[0002] Traditional traffic signs generally use a static display mode, which has the following major technical flaws: information lag, inability to dynamically adjust display content based on traffic flow, weather conditions, or emergencies, resulting in inefficient traffic diversion. Signs also have poor environmental adaptability, being easily affected by environmental factors such as wind and vibration, which can cause display orientation deviation (information readability decreases by 80% when the deviation angle is ≥5°). Summary of the Invention

[0003] The main purpose of the present invention is to overcome the above-mentioned defects in the prior art and propose a circuit structure of an intelligent traffic sign device that integrates sensors, wireless communications and solar-lithium battery dual-mode power supply, which has strong environmental adaptability and timely information.

[0004] The present invention adopts the following technical solutions:

[0005] The circuit structure of the intelligent traffic sign device includes: main control module, sensor module, power supply module, display driver module, communication module and user interaction module, specifically:

[0006] The sensor module is connected to the first input terminal of the main control module, the power supply module is connected to the second input terminal of the main control module, the communication module is connected to the third input terminal of the main control module, the user interaction module is connected to the fourth input terminal of the main control module, the first output terminal of the main control module is connected to the display driver module, and the second output terminal of the main control module is connected to the communication module.

[0007] Specifically, the main control module uses the ESP32-C3FN4 RISC-V architecture microcontroller, integrating a 2.4GHz RF front-end and low-power mode.

[0008] Specifically, the sensor module is an MPU6050 six-axis inertial measurement unit with a dynamic range of ±2000° / s.

[0009] Specifically, the power supply module is a Type-C interface input voltage of 5V, a lithium battery pack of 3.7V / 10000mAh ternary lithium battery cells, and a 12-bit ADC real-time sampling voltage divider circuit.

[0010] Specifically, the display driver module is a WS2812B full-color RGB LED array.

[0011] Specifically, the communication module adopts the Star Flash main channel and the Bluetooth backup channel.

[0012] Specifically, the user interaction module uses three mechanical buttons to support mode switching, brightness adjustment and fault reset.

[0013] From the above description of the present invention, it can be seen that compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention proposes a circuit structure of an intelligent traffic sign device, including: a main control module, a sensor module, a power supply module, a display driver module, a communication module and a user interaction module. Specifically: the sensor module is connected to the first input end of the main control module, the power supply module is connected to the second input end of the main control module, the communication module is connected to the third input end of the main control module, the user interaction module is connected to the fourth input end of the main control module, the first output end of the main control module is connected to the display driver module, and the second output end of the main control module is connected to the communication module. A circuit structure of an intelligent traffic sign device integrating sensors, wireless communication and solar-lithium battery dual-mode power supply is proposed, which has strong environmental adaptability and timely information. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A circuit diagram of a main control module of an intelligent traffic sign device provided by an embodiment of the present invention;

[0016] Figure 2 A circuit diagram of a sensor module provided in an embodiment of the present invention;

[0017] Figure 3 A circuit diagram of a power supply module provided in an embodiment of the present invention;

[0018] Figure 4 A circuit diagram of a display module and a communication module provided in an embodiment of the present invention;

[0019] Figure 5 This is a circuit diagram of a user interaction module provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] The present invention proposes a circuit structure of an intelligent traffic sign device, which integrates sensors, wireless communications, and solar-lithium battery dual-mode power supply, has strong environmental adaptability, and provides timely information.

[0022] The circuit structure of the intelligent traffic sign device includes: main control module, sensor module, power supply module, display driver module, communication module and user interaction module, specifically:

[0023] The sensor module is connected to the first input terminal of the main control module, the power supply module is connected to the second input terminal of the main control module, the communication module is connected to the third input terminal of the main control module, the user interaction module is connected to the fourth input terminal of the main control module, the first output terminal of the main control module is connected to the display driver module, and the second output terminal of the main control module is connected to the communication module.

[0024] like Figure 1 This is the circuit diagram of the main control module of the intelligent traffic sign device of the present invention; it specifically includes the following:

[0025] The ESP32-C3FN4 RISC-V architecture microcontroller integrates a 2.4GHz RF front-end and a low-power mode (deep sleep current ≤ 5μA). Based on the FreeRTOS real-time operating system, it implements multi-threaded task scheduling, including sensor data fusion (100Hz sampling frequency), display logic control, and communication protocol stack management.

[0026] like Figure 2 This is the circuit diagram of the sensor module, which uses the MPU6050 six-axis inertial measurement unit (IMU) with a dynamic range of ±2000° / s (gyroscope) and ±16g (accelerometer). A quaternion filtering-based fusion algorithm calculates the sign's two-dimensional attitude angles (pitch / roll) at a 100Hz sampling rate, ensuring rapid and accurate reporting of sign failures.

[0027] like Figure 3 This is the circuit diagram of the power supply module.

[0028] Type-C interface: input voltage 5V, compatible with AC emergency charging.

[0029] Lithium battery pack: 3.7V / 10000mAh ternary lithium battery (cycle life ≥500 times);

[0030] Voltage stabilization circuit: FP6276BXR-G1 boosts to 5V, AMS1117 steps down to 3.3V;

[0031] Power monitoring: 12-bit ADC real-time sampling voltage divider circuit, power display accuracy ±5%.

[0032] like Figure 4 Circuit diagram of the display module and communication module;

[0033] LED dot matrix: WS2812B full-color RGB LED array (8×8 layout), supports PWM dimming (frequency 1kHz), and has an adjustable brightness range of 0-255 levels.

[0034] Information screen: 0.96-inch SPI interface TFT-LCD, resolution 160×80.

[0035] Wireless Communication:

[0036] SparkLink protocol: 2.4GHz frequency band, using OFDM modulation and CSMA / CA collision avoidance mechanism, supports point-to-multipoint communication (maximum number of nodes ≥ 256), transmission delay <1ms, bit error rate <0.1% (@-85dBm), and coverage radius of 300m;

[0037] like Figure 5 This is the circuit diagram of the user interaction module, which supports local control and remote management: three mechanical buttons (contact life ≥ 100,000 times), supporting mode switching (manual / automatic), brightness adjustment, and fault reset. The networking module implements the Internet of Things function.

[0038] The present invention proposes a circuit structure of an intelligent traffic sign device, which includes: a main control module, a sensor module, a power supply module, a display driver module, a communication module and a user interaction module. Specifically: the sensor module is connected to the first input end of the main control module, the power supply module is connected to the second input end of the main control module, the communication module is connected to the third input end of the main control module, the user interaction module is connected to the fourth input end of the main control module, the first output end of the main control module is connected to the display driver module, and the second output end of the main control module is connected to the communication module. A circuit structure of an intelligent traffic sign device integrating sensors, wireless communication and solar-lithium battery dual-mode power supply is proposed, which has strong environmental adaptability and timely information.

[0039] The above is only a specific implementation of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. The circuit structure of the intelligent traffic sign device is characterized by: include: Main control module, sensor module, power supply module, display driver module, communication module and user interaction module, specifically: The sensor module is connected to the first input terminal of the main control module, the power supply module is connected to the second input terminal of the main control module, the communication module is connected to the third input terminal of the main control module, the user interaction module is connected to the fourth input terminal of the main control module, the first output terminal of the main control module is connected to the display driver module, and the second output terminal of the main control module is connected to the communication module.

2. The circuit structure of the intelligent traffic sign device according to claim 1 is characterized in that: The main control module uses the ESP32-C3FN4 RISC-V architecture microcontroller, integrated with a 2.4GHz RF front-end and low power consumption mode.

3. The circuit structure of the intelligent traffic sign device according to claim 1 is characterized in that: The sensor module is the MPU6050 six-axis inertial measurement unit with a dynamic range of ±2000° / s.

4. The circuit structure of the intelligent traffic sign device according to claim 1 is characterized in that: The power supply module is a Type-C interface input voltage of 5V, a lithium battery pack with a 3.7V / 10000mAh ternary lithium battery cell, and a 12-bit ADC real-time sampling voltage divider circuit.

5. The circuit structure of the intelligent traffic sign device according to claim 1 is characterized in that: The display driver module is a WS2812B full-color RGB LED array.

6. The circuit structure of the intelligent traffic sign device according to claim 1, characterized in that: The communication module uses Star Flash main channel and Bluetooth backup channel.

7. The circuit structure of the intelligent traffic sign device according to claim 1, characterized in that: The user interaction module uses three mechanical buttons to support mode switching, brightness adjustment and fault reset.

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