A smart traffic monitoring circuit system

Abstract

This invention relates to an intelligent traffic monitoring circuit system, comprising a road traffic status acquisition module, a data transmission module, an early warning execution module, a central processing module, a power management module, and a BeiDou timing and positioning module. The road traffic status acquisition module employs a triaxial accelerometer and a temperature and humidity sensor. This intelligent traffic monitoring system detects road vibration signals to determine whether a collision has occurred on the road, thereby clarifying the road traffic status and alerting following vehicles to avoid collisions via voice and flashing warnings.

Description

Technical Field

[0001] This invention belongs to the field of road traffic condition monitoring technology, specifically an intelligent traffic monitoring circuit system. Background Technology

[0002] With rapid economic development and an increase in vehicles, traffic problems are becoming increasingly serious. If a collision occurs ahead and following vehicles cannot avoid it in time, a chain reaction accident can easily occur, escalating the overall situation. However, using image acquisition methods to assess road traffic conditions is costly in terms of hardware investment, data volume, and traffic flow. Furthermore, after assessing road traffic conditions using image acquisition methods, warning signals must be provided to following vehicles.

[0003] In addition, when some vehicles break down on the road, a warning triangle should be placed 150 meters behind the vehicle. However, many drivers do not keep the warning triangle ready at all times, which leads to vehicles behind not being able to avoid collisions in time. Therefore, an intelligent traffic monitoring circuit system is proposed. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the shortcomings of the prior art described above, this application provides an intelligent traffic monitoring circuit system to solve the defects in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an intelligent traffic monitoring circuit system, comprising a road traffic status acquisition module, a data transmission module, an early warning execution module, a central processing module, a power management module, and a Beidou timing and positioning module;

[0007] The road traffic status acquisition module uses a triaxial accelerometer ADXL362 and a temperature and humidity sensor DHT11 to collect road vibration, temperature and humidity signals.

[0008] The central processing module includes a central processing unit circuit, which uses a single-chip microcomputer STM32L431RCT6, and is connected to the acquisition module to process sensor signals;

[0009] The data transmission module includes a data transmission circuit containing a 4G communication chip SIM7600CE and a LoRa radio frequency chip E28-2G4T12S, which is used to interact with the cloud server and the early warning terminal.

[0010] The early warning execution module includes an early warning circuit, which contains a voice broadcast circuit YX6100 and an LED driver circuit BCX56-16, for outputting audible and visual alarm signals;

[0011] The power management module, including the power circuit, provides 12V, 5V and 3.3V power to each module;

[0012] The Beidou timing and positioning module includes a synchronization clock circuit, which uses the BD-UM220 chip to achieve clock synchronization and device position tracking.

[0013] The road traffic status acquisition module, data transmission module, early warning execution module, and BeiDou timing and positioning module are electrically connected to the central processing module, and the power management module is integrated into the road traffic status acquisition module, data transmission module, early warning execution module, central processing module, and BeiDou timing and positioning module.

[0014] As a preferred technical solution for an intelligent traffic monitoring circuit system, the triaxial accelerometer model ADXL362 is used to detect road vibration information, and the temperature and humidity sensor model DHT11 is used to detect the temperature and humidity of the road.

[0015] As a preferred technical solution for an intelligent traffic monitoring circuit system, the data transmission module adopts the 4G wireless communication protocol and the LoRA wireless communication protocol for data transmission.

[0016] The 4G wireless communication protocol enables data transmission through a data SIM card and is mainly used for data interaction between the central processing unit in the intelligent traffic monitoring system circuit and the cloud server.

[0017] The LoRA wireless communication protocol is used to realize data interaction between the central processing unit in the intelligent traffic monitoring system circuit and the voice alarm circuit and the flashing alarm circuit. The LoRA wireless communication protocol uses an E28-2G4T12S radio frequency chip.

[0018] As a preferred technical solution for intelligent traffic monitoring circuit systems, a microcontroller is used as the central processing unit. The chip uses an internal crystal oscillator, and the microcontroller model is STM32L431RCT6.

[0019] As a preferred technical solution for an intelligent traffic monitoring circuit system, the power management module further includes a 12V power module, a 5V power module, and a 3.3V power module;

[0020] The 12V power module can be powered by an external 12V power source, or by an external solar panel and a lithium battery. The lithium battery uses 18650 cells and is configured with 2 parallel and 4 series connections to form a 12V power supply.

[0021] The 5V power module has a 12V input and uses an LM2594-5.0 power conversion chip to output 5V, which mainly powers the LoRA communication module.

[0022] The 3.3V power module has a 5V input and uses an AMS1117-3.3 power conversion chip to output 3.3V, which mainly powers the central processing unit module, vibration signal acquisition module and temperature and humidity signal acquisition module.

[0023] As a preferred technical solution for an intelligent traffic monitoring circuit system, the Beidou timing and positioning module receives Beidou timing signals through a Beidou timing chip, thereby achieving clock synchronization between the monitoring motherboard and the flashing alarm module circuit and the voice alarm module circuit in the intelligent traffic monitoring system circuit.

[0024] The Beidou timing chip can receive the longitude and latitude of the location of the intelligent traffic monitoring system circuit to prevent the intelligent traffic monitoring system equipment from being lost. The Beidou timing chip is model BD-UM220.

[0025] As a preferred technical solution for an intelligent traffic monitoring circuit system, the early warning execution module includes a voice alarm module circuit and a flashing alarm module circuit;

[0026] The voice alarm module circuit uses a YX6100 voice broadcast module chip, which has a loud voice broadcast volume and high power. It also uses a TLP206A optocoupler to convert the 3.3V signal to a 12V signal.

[0027] The voice alarm module circuit broadcasts messages including "Accident ahead, be careful to avoid it", "Slippery road in rainy weather, slow down", "Fog ahead, be careful to slow down" and "Icy road ahead, slow down".

[0028] The flashing alarm module uses yellow, red, and blue LED lights; rain warning uses a yellow flashing light; fog warning uses alternating yellow and green flashing lights; crosswind warning uses a constant yellow light; road icing warning uses red and yellow flashing lights; road maintenance warning uses red and blue flashing lights; and vehicle collision warning uses red and yellow flashing lights.

[0029] The flashing alarm module uses a BCX56-16 MOSFET to drive the yellow, red, and blue LED lights.

[0030] The beneficial effects of the intelligent traffic monitoring circuit system of the present invention are as follows: the intelligent traffic monitoring system detects road vibration signals to determine whether a collision has occurred on the road, thereby clarifying the road traffic status, and then reminding following vehicles to avoid the collision in time through voice alarms and flashing alarms. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0032] Figure 1 Connection diagram for each module;

[0033] Figure 2 This is a LoRA communication circuit diagram;

[0034] Figure 3 For power supply circuit Figure 1 ;

[0035] Figure 4 For power supply circuit Figure 2 ;

[0036] Figure 5 Circuit diagram of the BeiDou time synchronization system;

[0037] Figure 6 This is the circuit diagram for the flashing alarm LED driver.

[0038] Figure 7 For voice alarm circuit Figure 1 ;

[0039] Figure 8 For voice alarm circuit Figure 2 ;

[0040] Figure 9 Central processing unit circuit Figure 1 ;

[0041] Figure 10 Central processing unit circuit Figure 2 ;

[0042] Figure 11 Central processing unit circuit Figure 3 ;

[0043] Figure 12 Central processing unit circuit Figure 4 ;

[0044] Figure 13 This is a circuit diagram for vibration signal detection.

[0045] Attached reference numerals: 101, Road traffic status acquisition module; 103, Data transmission module; 104, Early warning execution module; 102, Central processing module; 106, Power management module; 105, Beidou timing and positioning module. Detailed Implementation

[0046] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0047] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0048] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0049] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0050] like Figures 1-13 As shown, the present invention proposes an intelligent traffic monitoring circuit system, including a road traffic status acquisition module 101, a data transmission module 103, an early warning execution module 104, a central processing module 102, a power management module 105, and a Beidou timing and positioning module 106.

[0051] The road traffic status acquisition module 101 uses a triaxial accelerometer ADXL362 and a temperature and humidity sensor DHT11 to acquire road vibration, temperature and humidity signals.

[0052] The central processing module 102 includes a central processing unit circuit, which adopts a single-chip microcomputer STM32L431RCT6, connects to the acquisition module and processes sensor signals;

[0053] Data transmission module 103 includes a data transmission circuit, which includes a 4G communication chip SIM7600CE and a LoRa radio frequency chip E28-2G4T12S, for interacting with cloud servers and early warning terminals.

[0054] The early warning execution module 104 includes an early warning circuit, which includes a voice broadcast circuit YX6100 and an LED driver circuit BCX56-16, for outputting audible and visual alarm signals.

[0055] The power management module 105 includes a power circuit that provides 12V, 5V and 3.3V power to each module;

[0056] The Beidou timing and positioning module 106 includes a synchronization clock circuit, which uses a BD-UM220 chip to achieve clock synchronization and device position tracking.

[0057] The road traffic status acquisition module 101, data transmission module 103, early warning execution module 104, and Beidou timing and positioning module 106 are electrically connected to the central processing module 102, and the power management module 105 is electrically connected to the road traffic status acquisition module 101, data transmission module 103, early warning execution module 104, central processing module 102, Beidou timing and positioning module 106, and central processing module 102, respectively.

[0058] The road traffic status acquisition circuit is used to collect road vibration information, temperature information, and humidity information;

[0059] The data transmission circuit is used to transmit road vibration signals, traffic status signals, and control signals.

[0060] The warning circuit is used to release flashing alarm signals and voice alarm signals to the driver to remind the driver of road traffic conditions;

[0061] The central processing unit circuit is used to process signals and determine road traffic conditions;

[0062] The power supply circuit is used to supply power to the circuitry of the intelligent traffic detection system.

[0063] The synchronous clock circuit is used to synchronize the clocks of circuits distributed at both ends of the road.

[0064] The specific implementation method is as follows: once a vehicle experiences a parking malfunction and needs to be parked on the road, the driver can impact the intelligent traffic monitoring system equipment to detect vibration signals and issue voice alarm signals and flashing alarm signals to remind following vehicles to avoid it in time.

[0065] Example 1: Highway Deployment:

[0066] Hardware installation: Monitoring nodes are symmetrically arranged every 500 meters and fixed to the inside of the guardrail (1.2 meters above the ground).

[0067] Parameter configuration:

[0068] Vibration threshold: Z-axis acceleration > 0.5g for 3 seconds;

[0069] Communication cycle: 4G data upload interval is 2 minutes, LoRa command is transmitted in real time;

[0070] Test results:

[0071] Accident identification accuracy: 96.7% (test sample of 200 cases);

[0072] System standby power consumption: 2.8W, peak power consumption: 15W.

[0073] Example 2: Urban Intersection Upgrade Solution

[0074] Add an RS485 interface to connect to the traffic light controller;

[0075] When an accident is detected, the red light is forcibly switched and the surrounding warning terminals are triggered.

[0076] Implementation results:

[0077] Cost reduction: Single-node hardware cost < 800 yuan (compared to image processing solutions > 3000 yuan);

[0078] Improved response time: From event occurrence to alert triggering <300ms;

[0079] Preventing equipment loss: The system automatically locks when the BeiDou positioning data deviation exceeds 200 meters.

[0080] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0081] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An intelligent traffic monitoring circuitry characterized by, It includes a road traffic status acquisition module (101), a data transmission module (103), an early warning execution module (104), a central processing module (102), a power management module (105), and a Beidou timing and positioning module (106). The road traffic status acquisition module (101) uses a triaxial accelerometer and a temperature and humidity sensor; The central processing module (102) uses a microcontroller; The data transmission module (103) includes a 4G communication chip and a LoRa radio frequency chip; The early warning execution module (104) includes a voice broadcast circuit and an LED driving circuit; The Beidou timing and positioning module (106) uses a chip, which includes a power conversion chip; The road traffic status acquisition module (101), data transmission module (103), early warning execution module (104), and Beidou timing and positioning module (106) are electrically connected to the central processing module (102), and the power management module (105) is electrically connected to the road traffic status acquisition module (101), data transmission module (103), early warning execution module (104), central processing module (102), Beidou timing and positioning module (106), and central processing module (102), respectively.

2. The intelligent traffic monitoring circuitry of claim 1, wherein, The triaxial accelerometer, model ADXL362, is used to detect road vibration information, and the temperature and humidity sensor, model DHT11, is used to detect the temperature and humidity of the road.

3. The intelligent traffic monitoring circuitry of claim 1, wherein, The data transmission module (103) adopts the 4G wireless communication protocol and the LoRA wireless communication protocol for its data transmission protocol; The 4G wireless communication protocol enables data transmission through a data SIM card and is mainly used for data interaction between the central processing unit in the intelligent traffic monitoring system circuit and the cloud server. The LoRA wireless communication protocol is used to realize data interaction between the central processing unit in the intelligent traffic monitoring system circuit and the voice alarm circuit and the flashing alarm circuit. The LoRA wireless communication protocol uses an E28-2G4T12S radio frequency chip.

4. The intelligent traffic monitoring circuitry of claim 1, wherein, The microcontroller serves as the central processing unit. This chip uses an internal crystal oscillator, and the microcontroller model is STM32L431RCT6.

5. The intelligent traffic monitoring circuitry of claim 1, wherein, The power management module (105) also includes a 12V power module, a 5V power module and a 3.3V power module; The 12V power module can be powered by an external 12V power source, or by an external solar panel and a lithium battery. The lithium battery uses 18650 cells and is configured with 2 parallel and 4 series connections to form a 12V power supply. The 5V power module has a 12V input and uses an LM2594-5.0 power conversion chip to output 5V, which mainly powers the LoRA communication module. The 3.3V power module has a 5V input and uses an AMS1117-3.3 power conversion chip to output 3.3V, which mainly powers the central processing unit module, vibration signal acquisition module and temperature and humidity signal acquisition module.

6. The intelligent traffic monitoring circuitry of claim 1, wherein, The Beidou timing and positioning module (106) receives Beidou timing signals through the Beidou timing chip, thereby synchronizing the clocks of the monitoring motherboard, flash alarm module circuit, and voice alarm module circuit in the intelligent traffic monitoring system circuit. The Beidou timing chip can receive the longitude and latitude of the location of the intelligent traffic monitoring system circuit to prevent the intelligent traffic monitoring system equipment from being lost. The Beidou timing chip is model BD-UM220.

7. The intelligent traffic monitoring circuitry of claim 6, wherein, The early warning execution module includes a voice alarm module circuit and a flashing alarm module circuit; The voice alarm module circuit uses a YX6100 voice broadcast module chip, which has a loud voice broadcast volume and high power. It also uses a TLP206A optocoupler to convert the 3.3V signal to a 12V signal. The voice alarm module circuit broadcasts messages including "Accident ahead, be careful to avoid it", "Slippery road in rainy weather, slow down", "Fog ahead, be careful to slow down" and "Icy road ahead, slow down". The flashing alarm module uses yellow, red, and blue LED lights; rain warning uses a yellow flashing light; fog warning uses alternating yellow and green flashing lights; crosswind warning uses a constant yellow light; road icing warning uses red and yellow flashing lights; road maintenance warning uses red and blue flashing lights; and vehicle collision warning uses red and yellow flashing lights. The flashing alarm module uses a BCX56-16 MOSFET to drive the yellow, red, and blue LED lights.

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