A monitoring and identifying device for highway pavement icing

Abstract

The utility model relates to road icing detection technical field, concretely relates to a kind of monitoring identification device for highway pavement icing, including monitoring module, microprocessor, communication module, microprocessor is connected with monitoring module, communication module respectively;Monitoring module includes primary monitoring module, signal trigger module, secondary monitoring module, the output end of primary monitoring module, microprocessor is connected to the input end of signal trigger module respectively, the output end of signal trigger module and the control end of secondary monitoring module are connected;Primary monitoring module, secondary monitoring module are connected with microprocessor respectively;Signal trigger module, according to the signal of primary monitoring module or microprocessor to start secondary monitoring module.The utility model classifies and opens monitoring module, for the traditional pavement icing monitoring device, solve the technical problem of the power waste and equipment aging loss caused by the continuous work of monitoring equipment when there is no icing in road section.

Description

Technical Field

[0001] This utility model relates to the field of road icing detection technology, and more specifically, to a monitoring and identification device for highway road surface icing. Background Technology

[0002] When temperatures drop to 0 degrees Celsius or below, water on road surfaces or melted snow will freeze. This phenomenon is common from November to April of the following year, especially in northern my country where road icing is frequent. Road icing poses numerous hazards, particularly impacting traffic safety. For vehicles, icy roads significantly reduce the friction between tires and the road surface, resulting in a substantial increase in braking distance and making vehicles more prone to skidding and loss of control. This risk is exacerbated on highways, where vehicle speeds are higher, significantly increasing the incidence of traffic accidents.

[0003] A publicly disclosed Chinese utility model patent, titled "A Monitoring and Identification Device for Highway Road Surface Icing" (publication number CN205881175U), includes a processor, a monitoring camera, a temperature sensor, and a humidity sensor. Image information acquired by the monitoring camera is transmitted to the processor, which then combines this data with data from the temperature and humidity sensors to comprehensively determine the road surface icing condition. While this utility model patent can monitor road surface icing in real time and effectively provide early warnings, the monitoring devices, including the temperature sensor, humidity sensor, and camera, are constantly operational. If the road section remains icy for an extended period, the monitoring equipment will continuously consume power, increasing operating costs and potentially causing aging and wear and tear on the equipment. Summary of the Invention

[0004] The purpose of this application is to provide a monitoring and identification device for highway road surface icing, which solves the technical problems of energy waste and equipment aging and wear caused by the continuous operation of monitoring equipment when there is no icing on the road.

[0005] To solve the above-mentioned technical problems, the solution adopted in this application is as follows: This utility model provides a monitoring and identification device for highway road surface icing, comprising a monitoring module, a microprocessor, and a communication module, wherein the microprocessor is connected to the monitoring module and the communication module respectively; characterized in that: the monitoring module includes a primary monitoring module, a signal triggering module, and a secondary monitoring module, wherein the output terminal of the primary monitoring module and the microprocessor are respectively connected to the input terminal of the signal triggering module, and the output terminal of the signal triggering module is connected to the control terminal of the secondary monitoring module; the primary monitoring module and the secondary monitoring module are respectively connected to the microprocessor; The primary monitoring module is used to monitor changes in ambient temperature and humidity and to make a preliminary judgment on road icing conditions; The signal triggering module activates the secondary monitoring module based on the signal from the primary monitoring module or the microprocessor. The secondary monitoring module is used to further monitor road icing conditions.

[0006] In some embodiments, the signal triggering module includes a first judgment module and a start module. The input terminal of the first judgment module serves as the input terminal of the signal triggering module, the output terminal of the first judgment module is connected to the input terminal of the start module, and the output terminal of the start module serves as the output terminal of the signal triggering module. The first judgment module is used to judge the control signal output by the primary monitoring module or the microprocessor; The startup module starts the secondary monitoring module according to the control signal sent by the first judgment module.

[0007] In some embodiments, the first determination module includes an OR gate, wherein the input terminal of the OR gate serves as the input terminal of the first determination module, and the output terminal of the OR gate serves as the output terminal of the first determination module.

[0008] In some embodiments, the startup module includes a transistor and a resistor. The base of the transistor serves as the input terminal of the startup module, the emitter of the transistor is grounded, the collector of the transistor is connected to a power supply through a resistor, and an output terminal is provided at the connection between the collector of the transistor and the resistor as the output terminal of the startup module.

[0009] In some embodiments, the primary monitoring module includes a sensor module, a second judgment module, and an analog-to-digital converter. The output terminal of the sensor module, the output terminal of the microprocessor for transmitting the sampling frequency, and the input terminal of the second judgment module are connected together. The output terminal of the second judgment module, the input terminal of the microprocessor for receiving control signals, and the input terminal of the analog-to-digital converter are connected together. The analog-to-digital converter and the microprocessor are connected together. The second judgment module is used to judge the control signal output by the sensor module and the sampling frequency signal transmitted by the microprocessor.

[0010] In some embodiments, the second judgment module includes an AND gate and an XOR gate. The two inputs of the AND gate and one input of the XOR gate are both inputs of the second judgment module. The output of the AND gate is connected to the two inputs of the XOR gate, and the output is set here as the output of the second judgment module. The output of the XOR gate is connected to the analog-to-digital converter.

[0011] In some embodiments, the analog-to-digital converter is of model ADC0832CCN.

[0012] In some embodiments, the sensor module includes a humidity sensor and a temperature sensor, and the output terminals of the temperature sensor and the humidity sensor are respectively connected to the input terminal of the second judgment module.

[0013] In some embodiments, the secondary monitoring module includes a camera module, wherein the camera module is model OV2640.

[0014] In some embodiments, the microprocessor is an STM32F407ZET6.

[0015] The technical solution of this application has at least the following advantages and beneficial effects: 1. The present invention provides a graded monitoring module, which includes a primary monitoring module, a microprocessor, and a secondary monitoring module. When the environmental data collected by the primary monitoring module exceeds a threshold, the secondary monitoring module is activated to further monitor the road icing phenomenon, thereby preventing the monitoring equipment from continuously working when there is no icing on the road, which would lead to energy waste and equipment aging and wear. 2. The primary monitoring module includes a sensor module, and the secondary monitoring module includes a camera module. The microprocessor periodically receives and processes the environmental data collected by the sensor module. If the microprocessor determines that the environmental data exceeds the threshold, it activates the camera module to monitor the road icing. If the sensor module detects that both temperature and humidity exceed the threshold during the time when the microprocessor is not receiving environmental data, it automatically activates the camera module to monitor the road icing, ensuring that the monitoring of road icing is never missed at any time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the signal flow direction of this utility model; Figure 2 This is the circuit diagram of the first judgment module of this utility model; Figure 3 This is the circuit diagram of the second judgment module of this utility model; Figure 4 This is the circuit diagram of the temperature sensor of this utility model; Figure 5This is a circuit diagram of the humidity sensor of this utility model; Figure 6 This is the interface circuit diagram of the camera module of this utility model. Detailed Implementation

[0017] 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.

[0018] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. The terms "center," "upper," "lower," "inner," and "outer," indicating orientation or positional relationships based on the orientation or positional relationships shown in the figures, or the orientation or positional relationships commonly used when the product is in use, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation on this application. It should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0019] Example 1 Please refer to Figures 1-6 This utility model provides a monitoring and identification device for highway road surface icing, which is the same as the prior art, including a monitoring module, a microprocessor, and a communication module, with the microprocessor connected to the monitoring module and the communication module respectively.

[0020] The monitoring module is used to collect environmental data; The microprocessor is used to process the environmental data sent by the monitoring module and compare it with the threshold data. If the microprocessor determines that the environmental data exceeds the threshold data, the microprocessor sends an alarm signal to the monitoring center through the communication module. In this invention, the microprocessor is an STM32F407ZET6.

[0021] The communication module is used to transmit environmental data and alarm signals processed by the microprocessor to the monitoring center; In this embodiment, the communication module is model SIM300C.

[0022] Unlike existing technologies, the monitoring module includes a primary monitoring module, a signal triggering module, and a secondary monitoring module. The output terminal of the primary monitoring module and the microprocessor are respectively connected to the input terminal of the signal triggering module, and the output terminal of the signal triggering module is connected to the control terminal of the secondary monitoring module. The primary monitoring module and the secondary monitoring module are respectively connected to the microprocessor. The primary monitoring module is used to monitor changes in ambient temperature and humidity and to make a preliminary assessment of road icing conditions. The signal triggering module activates the secondary monitoring module based on signals from the primary monitoring module or the microprocessor. The secondary monitoring module is used to further monitor road icing conditions.

[0023] The signal triggering module includes a first judgment module and a start module. The input terminal of the first judgment module serves as the input terminal of the signal triggering module, and the output terminal of the first judgment module is connected to the input terminal of the start module. The output terminal of the start module serves as the output terminal of the signal triggering module. The first judgment module is used to judge the control signal output by the primary monitoring module or the microprocessor. The startup module starts the secondary monitoring module based on the control signal sent by the first judgment module.

[0024] Furthermore, the first judgment module includes an OR gate, with the input of the OR gate serving as the input of the first judgment module and the output of the OR gate serving as the output of the first judgment module; The startup module includes a transistor and a resistor. The base of the transistor serves as the input terminal of the startup module, the emitter of the transistor is grounded, the collector of the transistor is connected to the power supply through the resistor, and the connection between the collector of the transistor and the resistor is set as the output terminal of the startup module.

[0025] Furthermore, the signal triggering module includes an OR gate U4, a transistor Q2, and resistors R4, R5, and R6; The system includes: a control signal for setting the humidity threshold; an F_IN input connected to pin PF4 of the microprocessor, used to receive the sampling frequency transmitted by the microprocessor; a CON_OUT output connected to pin PA1 of the microprocessor, outputting a control signal indicating that environmental data enables road icing to the microprocessor; a CLK input connected to pin PA0 of the microprocessor, used to receive the clock signal provided by the microprocessor; and an IO input / output pin connected to pin PG0 of the microprocessor, used to output the digital signal after analog-to-digital conversion to the microprocessor and for the microprocessor to transmit control signals to select the analog-to-digital conversion channel.

[0026] The secondary monitoring module includes a camera module, model OV2640; such as Figure 6 As shown, the camera module's interface U9 is used to connect to the microprocessor and the signal triggering module; Specifically, pin 1 of interface U9 is connected to capacitor C4 and grounded; pin 2 of interface U9 is connected to the other end of capacitor C4 and connected to the power supply; pin 3 of interface U9 is connected to microprocessor pin PB7; pin 4 of interface U9 is connected to microprocessor pin PD6; pin 5 of interface U9 is connected to microprocessor pin PA4; pin 6 of interface U9 is connected to microprocessor pin PD7; pin 7 of interface U9 is connected to microprocessor pin PG15; pin 8 of interface U9 is connected to microprocessor pin PE6; pin 9 of interface U9 is connected to microprocessor pin PE5; and so on. Pin 10 of interface U9 is connected to pin PB6 of the microprocessor; pin 11 of interface U9 is connected to pin PC11 of the microprocessor; pin 12 of interface U9 is connected to pin PC9 of the microprocessor; pin 13 of interface U9 is connected to pin PC8 of the microprocessor; pin 14 of interface U9 is connected to pin PC7 of the microprocessor; pin 15 of interface U9 is connected to pin PC6 of the microprocessor; pin 16 of interface U9 is connected to pin PA6 of the microprocessor; pin 17 of interface U9 is connected to pin PA8 of the microprocessor; and pin 18 of interface U9 is connected to the CAM_OUT output terminal of the signal trigger module.

[0027] It should be explained that when pin 18 of the camera module's interface U9 receives a high level, the camera enters sleep mode; when it receives a low level, the camera enters working mode.

[0028] To facilitate understanding, the workflow of this utility model is now described: The temperature and humidity sensors begin monitoring the ambient temperature; the camera module is in sleep mode. Under normal circumstances, the microprocessor collects environmental data at a set frequency and compares the environmental data within the microprocessor to see if it exceeds a threshold. If it does not exceed the threshold, each module works normally, and the microprocessor sends the environmental data to the monitoring center through the communication module. If the environmental data exceeds the threshold, the microprocessor outputs a control signal to the CAM_OUT output terminal. At this time, the OR gate U4 outputs a high level to the base of the transistor Q2, the transistor Q2 is turned on, and the CAM_OUT outputs a low level to the camera module, releasing the camera from sleep mode and starting to identify road icing conditions. If the temperature sensor and humidity sensor detect that the environmental data both exceed the threshold, the temperature sensor and humidity sensor send control signals to the TEM_IN and HUM_IN input terminals of AND gate U1, respectively. At this time, AND gate U1 outputs a high level, and CON_OUT outputs a high level to the microprocessor and camera module, respectively. At the same time, pin 1 of XOR gate U2 receives a high level, and XOR gate U2 outputs a high level to the base of transistor Q1, turning on transistor Q1. CAM_OUT outputs a low level to the camera module, releasing the camera from sleep mode and starting to identify road icing conditions. When the camera module detects road icing, the microprocessor sends an alarm signal to the monitoring center via the communication module.

[0029] It should be noted that the purpose of outputting a control signal when both the temperature and humidity sensors detect that the environmental data exceeds the threshold is to prevent a sudden drop in temperature that could lead to icing during the period when the microprocessor is not collecting environmental data.

[0030] It should be noted that this embodiment also includes a power module, which is connected to the microprocessor, monitoring module and communication module respectively; the power module is existing technology and will not be described in detail here.

[0031] It should be noted that all of the above electronic components are available for purchase in domestic and international markets.

[0032] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art will fully understand how to implement the technical solution of this utility model based on the above description. The scope of this utility model is defined by the appended claims.

Claims

1. A monitoring and identification device for highway road surface icing, comprising a monitoring module, a microprocessor, and a communication module, wherein the microprocessor is connected to the monitoring module and the communication module respectively; characterized in that: The monitoring module includes a primary monitoring module, a signal triggering module, and a secondary monitoring module. The output terminal of the primary monitoring module and the microprocessor are respectively connected to the input terminal of the signal triggering module, and the output terminal of the signal triggering module is connected to the control terminal of the secondary monitoring module. The primary monitoring module and the secondary monitoring module are respectively connected to the microprocessor. The primary monitoring module is used to monitor changes in ambient temperature and humidity and to make a preliminary judgment on road icing conditions; The signal triggering module activates the secondary monitoring module based on the signal from the primary monitoring module or the microprocessor. The secondary monitoring module is used to further monitor road icing conditions; The primary monitoring module includes a sensor module, a second judgment module, and an analog-to-digital converter. The output terminal of the sensor module, the output terminal of the microprocessor for transmitting the sampling frequency, and the input terminal of the second judgment module are connected together. The output terminal of the second judgment module, the input terminal of the microprocessor for receiving control signals, and the input terminal of the analog-to-digital converter are connected together. The analog-to-digital converter and the microprocessor are connected together. The second judgment module is used to judge the control signal output by the sensor module and the sampling frequency signal transmitted by the microprocessor.

2. The monitoring and identification device for highway road surface icing according to claim 1, characterized in that, The signal triggering module includes a first judgment module and a start module. The input terminal of the first judgment module serves as the input terminal of the signal triggering module. The output terminal of the first judgment module is connected to the input terminal of the start module, and the output terminal of the start module serves as the output terminal of the signal triggering module. The first judgment module is used to judge the control signal output by the primary monitoring module or the microprocessor; The startup module starts the secondary monitoring module according to the control signal sent by the first judgment module.

3. The monitoring and identification device for highway road surface icing according to claim 2, characterized in that, The first judgment module includes an OR gate, the input of which serves as the input of the first judgment module, and the output of which serves as the output of the first judgment module.

4. The monitoring and identification device for highway road surface icing according to claim 2, characterized in that, The startup module includes a transistor and a resistor. The base of the transistor serves as the input terminal of the startup module, the emitter of the transistor is grounded, the collector of the transistor is connected to the power supply through the resistor, and an output terminal is set at the connection between the collector of the transistor and the resistor as the output terminal of the startup module.

5. A monitoring and identification device for highway road surface icing according to claim 1, characterized in that, The second judgment module includes an AND gate and an XOR gate. The two inputs of the AND gate and one input of the XOR gate are both inputs of the second judgment module. The output of the AND gate is connected to the two inputs of the XOR gate, and the output is set here as the output of the second judgment module. The output of the XOR gate is connected to the analog-to-digital converter.

6. A monitoring and identification device for highway road surface icing according to claim 1, characterized in that, The analog-to-digital converter is model ADC0832CCN.

7. A monitoring and identification device for highway road surface icing according to claim 1, characterized in that, The sensor module includes a humidity sensor and a temperature sensor, and the output terminals of the temperature sensor and the humidity sensor are respectively connected to the input terminal of the second judgment module.

8. A monitoring and identification device for highway road surface icing according to claim 1, characterized in that, The secondary monitoring module includes a camera module, the model of which is OV2640.

9. A monitoring and identification device for highway road surface icing according to claim 1, characterized in that, The microprocessor is an STM32F407ZET6.

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