Device for detecting highway pavement icing distribution

Abstract

The utility model relates to the technical field of road icing monitoring, in particular to a device for detecting highway pavement icing distribution, which comprises a monitoring module, a controller and a communication module, and the controller is respectively connected with the monitoring module and the communication module. The monitoring module comprises a sensor module, a vehicle monitoring module and a camera module, and the sensor module, the vehicle monitoring module and the camera module are respectively connected with the controller; the vehicle monitoring module is started according to a control signal of the controller, records the number of vehicles in a period and transmits the number to the controller; and the camera module is started according to a control signal of the controller and transmits shot video data to the controller for road icing judgment. The road icing monitoring device solves the technical problem that an alarm signal sent by an existing road icing monitoring device cannot reflect icing severity, traffic flow and other conditions so as to assist workers in making a deicing scheme.

Description

Technical Field

[0001] This utility model relates to the field of road icing detection technology, and more specifically, to a device for detecting the distribution of icing on highway surfaces. Background Technology

[0002] Road icing is a phenomenon that occurs under low-temperature weather conditions. When the temperature drops below the freezing point of water, water accumulated on the road surface or water from melting snow will freeze into ice.

[0003] First, icy conditions significantly reduce road surface friction. When a vehicle is in motion, the tires rely on friction with the road surface to accelerate, decelerate, and steer. Insufficient friction makes the vehicle prone to loss of control. For example, braking distance increases significantly; a distance that would allow for immediate stopping on a dry surface may require several times that on an icy surface. Second, icy roads affect vehicle handling. Drivers need precise steering to maintain the vehicle's direction. However, on icy surfaces, vehicles may deviate from their intended path, making precise control difficult even for experienced drivers. This is especially true on highways, where high speeds and icy conditions can easily lead to traffic accidents.

[0004] In existing technologies, a single camera is typically used to monitor road icing. This not only results in a small monitoring range but also leads to device aging due to prolonged operation and increased operating costs. Furthermore, when multiple road sections experience icing, staff need to devise de-icing plans. However, the alarm signals sent to the monitoring center by ordinary road icing monitoring devices cannot provide staff with information about the specific situation on-site, such as the severity of icing and traffic flow.

[0005] Therefore, it is of great significance to address the technical problem of how existing road icing monitoring devices cannot reflect the severity of icing and traffic flow in order to assist staff in developing de-icing plans. Utility Model Content

[0006] The purpose of this application is to provide a device for detecting the distribution of icing on highway surfaces, which solves the technical problem that the alarm signals sent by existing road icing monitoring devices cannot reflect the severity of icing and traffic flow, thus failing to assist staff in formulating de-icing plans.

[0007] To solve the above-mentioned technical problems, the solution adopted in this application is as follows:

[0008] This utility model provides a device for detecting the distribution of icing on highway surfaces, comprising a monitoring module, a controller, and a communication module, wherein the controller is connected to the monitoring module and the communication module respectively; characterized in that: the monitoring module includes a sensor module, a vehicle monitoring module, and a camera module, wherein the sensor module, the vehicle monitoring module, and the camera module are respectively connected to the controller;

[0009] The sensor module is used to monitor the environment and transmit the collected data to the controller;

[0010] The vehicle monitoring module is activated according to the control signal from the controller, records the number of vehicles within a period, and transmits it to the controller;

[0011] The camera module is activated according to the control signal from the controller, and transmits the captured video data to the controller for road icing determination.

[0012] In some embodiments, the vehicle monitoring module includes an infrared module and a statistics module. The input terminal of the statistics module is connected to the infrared module and the controller, respectively, and the output terminal of the statistics module is connected to the controller.

[0013] The infrared module is used to monitor passing vehicles;

[0014] The statistics module counts the number of vehicles passing through within a period based on the signal output by the infrared module, and sends the result signal to the controller.

[0015] In some embodiments, the statistics module includes a timing module and a counting module. The input terminal of the timing module and the first input terminal of the counting module serve as the input terminals of the statistics module, and the first and second output terminals of the timing module and the second and third input terminals of the counting module are connected to the output terminal of the timing module, which serves as the output terminal of the statistics module.

[0016] In some embodiments, the timing module includes a field-effect transistor (FET), a pulse generator, and a first counter. The gate of the FET is set as the input terminal of the timing module, the drain of the FET is connected to a power supply, and the source of the FET, the reset terminal of the pulse generator, and the reset terminal of the first counter are connected and an output terminal is set thereas as one output terminal of the timing module. The clock signal receiving terminals of the pulse generator and the first counter are connected, and the output terminal of the first counter is used as a second output terminal of the timing module.

[0017] In some embodiments, the counting module includes a second counter and an AND gate. One input terminal and two input terminals of the AND gate serve as one input terminal and two input terminals of the counting module, respectively. The output terminal of the AND gate is connected to the clock signal receiving terminal of the second counter. The reset terminal of the second counter is set as the three input terminals of the counting module, and the output terminal of the second counter is set as the output terminal of the counting module.

[0018] In some embodiments, the infrared module includes an infrared emitting circuit and an infrared receiving circuit. The output terminal of the infrared receiving circuit serves as the output terminal of the infrared module. When the infrared receiving circuit receives infrared light emitted by the infrared emitting circuit, it sends a control signal to the statistics module.

[0019] In some embodiments, the sensor module includes a temperature sensor and a humidity sensor, and the output terminals of the temperature sensor and the humidity sensor are respectively connected to the controller.

[0020] In some embodiments, the camera module includes two sets of cameras, which are respectively connected to the controller; both sets of cameras are of model OV2640.

[0021] In some embodiments, a display module is also included, which is connected to the controller.

[0022] The technical solution of this application has at least the following advantages and beneficial effects:

[0023] 1. This utility model expands the monitoring range of road icing by setting up two cameras, and strengthens the comprehensive monitoring capability of road icing phenomena, especially for some special road sections.

[0024] 2. This utility model compares the environmental data transmitted by the sensor module with a first threshold and a second threshold. Exceeding the first threshold indicates a possible road icing. At this time, the vehicle monitoring module is activated to statistically determine the number of vehicles. If there are many vehicles, it indicates high road usage. Activating the camera to monitor road icing prevents traffic accidents caused by icy roads and ensures road traffic safety and smooth flow. Comparing the environmental data with the second threshold indicates a very high risk of road icing. In this case, the controller directly activates the camera to obtain timely information about the road surface condition. When multiple devices send alarm signals to the monitoring center through the controller, staff can formulate de-icing and alarm plans based on the urgency of the alarm signals sent by the controller. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the signal flow of this utility model;

[0026] Figure 2 This is the circuit diagram of the statistical module of this utility model;

[0027] Figure 3 This is a circuit diagram of the infrared receiver of this utility model;

[0028] Figure 4 This is the infrared emitting circuit diagram of this utility model;

[0029] Figure 5 This is the circuit diagram of the temperature detection module in Embodiment 2.

[0030] Figure 6 This is the circuit diagram of the humidity detection module in Embodiment 2. Detailed Implementation

[0031] 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.

[0032] 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.

[0033] Example 1

[0034] Please refer to Figures 1-4This utility model provides a device for detecting the distribution of icing on highway surfaces, which is the same as the prior art, including a monitoring module, a controller, and a communication module, with the controller connected to the monitoring module and the communication module respectively;

[0035] The controller determines whether the road is icy based on the received environmental data; the environmental data received by the controller is transmitted to the monitoring center through the communication module.

[0036] It should be noted that the controller model is ZYNQ-7010; the communication module model is SIM300C.

[0037] This embodiment also includes a display module, which is connected to the controller and is used to display the environmental data collected by the monitoring module to remind the driver of icy road conditions; the display module includes a display screen, which in this embodiment is an OLED display screen.

[0038] Unlike existing technologies, the monitoring module includes a sensor module, a vehicle monitoring module, and a camera module, which are all connected to the controller.

[0039] The sensor module is used to monitor the environment and transmit the collected data to the controller;

[0040] The vehicle monitoring module is activated by the controller's control signal, records the number of vehicles within a period, and transmits it to the controller.

[0041] The camera module is activated by the control signal from the controller, transmitting the captured video data to the controller for road icing detection.

[0042] The sensor module includes a temperature sensor and a humidity sensor. The output terminals of the temperature sensor and the humidity sensor are respectively connected to the controller. In this embodiment, the temperature sensor is model STS4L and the humidity sensor is model SHT40I-HD1F.

[0043] The camera module includes two sets of cameras, each of which is connected to the controller; in this embodiment, both sets of cameras are model OV2640.

[0044] It should be noted that this utility model expands the monitoring range of road icing by setting up two cameras, especially for some special road sections, and strengthens the comprehensive monitoring capability of road icing phenomena; the special road sections include, but are not limited to, tunnel exits or entrances.

[0045] The vehicle monitoring module includes an infrared module and a statistics module. The input of the statistics module is connected to the infrared module and the controller, respectively, and the output of the statistics module is connected to the controller.

[0046] Infrared module, used to monitor passing vehicles;

[0047] The statistics module counts the number of vehicles passing through within a period based on the signal output by the infrared module, and sends the result signal to the controller.

[0048] Furthermore, the statistics module includes a timing module and a counting module. The input terminal of the timing module and the first input terminal of the counting module serve as the input terminals of the statistics module, respectively. The first and second output terminals of the timing module are connected to the second and third input terminals of the counting module. The output terminal of the timing module serves as the output terminal of the statistics module.

[0049] The timing module includes a field-effect transistor (FET), a pulse generator, and a first counter. The gate of the FET is set as the input terminal of the timing module, and the drain of the FET is connected to the power supply. The source of the FET, the reset terminal of the pulse generator, and the reset terminal of the first counter are connected and set as the output terminal of the timing module. The clock signal receiving terminals of the pulse generator and the first counter are connected, and the output terminal of the first counter is set as the second output terminal of the timing module.

[0050] The counting module includes a second counter and an AND gate. The first and second inputs of the AND gate serve as the first and second inputs of the counting module, respectively. The output of the AND gate is connected to the clock signal receiving terminal of the second counter. The reset terminal of the second counter is set as the third input of the counting module, and the output of the second counter is set as the output of the counting module.

[0051] Furthermore, the statistical module includes a field-effect transistor Q3, a pulse generator U1, a first counter U2, an AND gate U3, a second counter U4, a polarized capacitor C1, a general-purpose capacitor C2, a transistor Q4, and resistors R5, R6, R7, R8, R9, and R10.

[0052] The timing module includes a field-effect transistor Q3, a pulse generator U1, a first counter U2, a polarized capacitor C1, a general-purpose capacitor C2, and resistors R5, R6, R7, R8, and R9; the counting module includes an AND gate U3, a second counter U4, a transistor Q4, and a resistor R10.

[0053] Specifically, one end of resistor R5 is connected to the power supply, and the other end of resistor R5, one end of resistor R6, and the drain of field-effect transistor Q3 are connected together. The other end of resistor R6 is grounded. The gate of field-effect transistor Q3 is set as the A_IN input terminal. The source of field-effect transistor Q3, one end of resistor R8, pin 4 of pulse generator U1, pin 1 of counter U2, and pin 2 of AND gate U3 are connected together. The other end of resistor R8 is grounded. Pin 8 of pulse generator U1 is connected to one end of resistor R7 and is connected to the power supply. Pin 7 of pulse generator U1, the other end of resistor R7, and one end of resistor R9 are connected together. Pin 2 of pulse generator U1, pin 6 of pulse generator U1, the other end of resistor R9, and the positive terminal of polarized capacitor C1 are connected together. Pin 3 of pulse generator U1 is connected to pin 2 of the first counter U1. Pin 5 of pulse generator U1 is connected to one end of ordinary capacitor C2. The other end of ordinary capacitor C2, pin 1 of pulse generator U1, and the positive terminal of polarized capacitor C1 are connected together. The negative terminal of capacitor C1 is connected to and grounded; pins 3, 4, 5, 6, and 8 of the first counter U2 are connected to and grounded; pins 7, 9, 10, and 16 of the first counter U2 are connected to and connected to the power supply; pin 15 of the first counter U2 is connected to the base of transistor Q4; the collector of transistor Q4, one end of resistor R10, and pin 1 of the second counter U4 are connected; the other end of resistor R10 is connected to the power supply; the emitter of transistor Q4 and pins 3, 4, 5, 6, and 8 of the second counter U4 are connected to and grounded; pin 2 of the second counter U4 is connected to pin 4 of AND gate U3; pin 5 of AND gate U3 and pins 7, 9, 10, and 16 of the second counter U4 are connected to and connected to the power supply; pin 15 of the second counter U4 is set as the A_OUT output terminal; pin 1 of AND gate U3 is set as the FR_IN input terminal; pin 3 of AND gate U3 is grounded.

[0054] It should be noted that transistor Q4 is an NPN type; field-effect transistor Q3 is an NMOS transistor; pulse generator U1 is model NE555DR; first counter U2 and second counter U4 are both model 74LS161; AND gate is model SN74AHC1G08DBVR.

[0055] It should be noted that the A_IN input terminal is connected to the controller pin, the FR_IN input terminal is connected to the infrared module, and the A_OUT output terminal is connected to the controller pin.

[0056] The infrared module includes an infrared emitting circuit and an infrared receiving circuit. The output terminal of the infrared receiving circuit serves as the output terminal of the infrared module. When the infrared receiving circuit receives the infrared light emitted by the infrared emitting circuit, it sends a control signal to the statistics module.

[0057] Furthermore, the infrared emitting circuit includes resistors R1 and R2, and infrared emitting diodes D1 and D2;

[0058] Specifically, one end of resistor R1 is connected to one end of resistor R2 and connected to a power source. The other end of resistor R1 is connected to the anode of infrared emitting diode D1, and the other end of resistor R2 is connected to the anode of infrared emitting diode D2. The cathodes of infrared emitting diode D1 and infrared emitting diode D2 are connected to ground.

[0059] It should be noted that both infrared emitting tubes D1 and D2 are model L314EIR1C.

[0060] Furthermore, the infrared receiving circuit includes resistors R3 and R4, an infrared receiving tube Q1, and a field-effect transistor Q2;

[0061] Specifically, one end of resistor R3 is connected to the drain of field-effect transistor Q2 and connected to the power supply. The gate of field-effect transistor Q2, the other end of resistor R3, and the collector of infrared receiver Q1 are connected. The emitter of infrared receiver Q1 is connected to one end of resistor R4 and grounded. The other end of resistor R4 is connected to the source of field-effect transistor Q2, and the FR_OUT output terminal is set here.

[0062] It should be noted that the infrared receiver Q1 is model DY-PT204B-A5; the transistor Q2 is a PNP transistor.

[0063] It should be noted that the FR_OUT output terminal is connected to the FR_IN input terminal.

[0064] To facilitate understanding, the workflow of this utility model is now described:

[0065] The sensor module collects ambient temperature and humidity data in real time and transmits it to the controller. The controller compares the received data. If the data exceeds the first threshold, it outputs a control signal to the vehicle monitoring module. The timing module in the vehicle monitoring module starts timing, and the infrared module starts to identify the number of vehicles passing by and transmits the data to the counting module for statistics.

[0066] If the vehicle monitoring module detects that the number of vehicles reaches or exceeds the set value within the time period of the timing module, it sends a control signal to the camera module through the controller to start the camera module to monitor road icing. At the same time, the controller sends an alarm signal to the monitoring center through the communication module.

[0067] If the vehicle monitoring module detects that the number of vehicles has not reached or exceeded the set value within the time period measured by the timing module, the controller sends an alarm signal to the monitoring center through the communication module.

[0068] If the data received by the controller exceeds the second threshold, the controller outputs a control signal to the camera module to directly activate the camera for road icing monitoring. At the same time, the controller sends an alarm signal to the monitoring center through the communication module.

[0069] It should be noted that in this utility model, environmental data is compared with a first threshold. If the data exceeds the first threshold, it indicates that there is a possibility of road icing. At this time, the vehicle monitoring module is activated to statistically determine whether there are many vehicles. If there are many vehicles, it means that the road usage rate is high. At this time, the camera is activated to monitor the road icing phenomenon in order to prevent traffic accidents caused by road icing during vehicle driving and to ensure road traffic safety and smoothness.

[0070] The environmental data is compared with a second threshold. If the data exceeds the second threshold, it means that the risk of road icing is very high. In this case, the controller directly activates the camera to monitor and obtain information about the condition of the road surface in a timely manner.

[0071] It should be noted that when multiple devices send alarm signals to the monitoring center through the controller, staff can formulate de-icing and alarm plans based on the urgency of the alarm signals sent by the controller.

[0072] This invention also includes a power supply module, which is used to supply power to the above-mentioned modules.

[0073] It should be noted that all of the above electronic components are available for purchase in domestic and international markets.

[0074] Example 2

[0075] The difference between this embodiment 2 and embodiment 1 is that the sensor module is also equipped with a temperature detection module and a humidity detection module;

[0076] The temperature detection module is used to compare the ambient temperature data with the first temperature threshold and the second temperature threshold, and send the comparison result signal to the controller to start the vehicle monitoring module or the camera module.

[0077] It should be noted that, as Figure 5 As shown, comparator U6 is used to compare the ambient temperature data with the first temperature threshold. The control signal output by the TEM_OUT1 output terminal indicates that the ambient temperature data exceeds the first temperature threshold. Comparator U7 is used to compare the ambient temperature data with the second temperature threshold. The control signal output by the TEM_OUT2 output terminal indicates that the ambient temperature data exceeds the second temperature threshold.

[0078] The humidity detection module is used to compare the ambient humidity data with the first and second humidity thresholds, and send the comparison result signal to the controller to activate the vehicle monitoring module or the camera module.

[0079] It should be noted that, as Figure 6 As shown, comparator U8 is used to compare the ambient humidity data with the first humidity threshold. The control signal output by HUM_OUT1 indicates that the ambient humidity data exceeds the first humidity threshold. Comparator U9 is used to compare the ambient humidity data with the second threshold. The control signal output by HUM_OUT2 indicates that the ambient humidity data exceeds the second humidity threshold.

[0080] 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 device for detecting the distribution of icy road surface of highway, comprising a monitoring module, a controller, a communication module, the controller is connected with the monitoring module and the communication module respectively; characterized in that: The monitoring module comprises a sensor module, a vehicle monitoring module and a camera module, which are connected to the controller respectively; The sensor module is used for monitoring the environment and transmitting the collected data to the controller; The vehicle monitoring module is started according to the control signal of the controller, records the number of vehicles in a period and transmits the number to the controller; The camera module is started according to the control signal of the controller, transmits the video data shot to the controller for road icing judgment.

2. The device for detecting the distribution of icy road surface of a highway according to claim 1, wherein, The vehicle monitoring module comprises an infrared module and a statistical module, the input ends of the statistical module are connected to the infrared module and the controller respectively, and the output end of the statistical module is connected to the controller. The infrared module is used for monitoring the passing vehicles. The statistical module counts the number of passing vehicles in a period according to the signal output by the infrared module and sends the result signal to the controller.

3. A device for detecting the distribution of icy road surface on a highway according to claim 2, characterized in that, The statistical module comprises a timing module and a counting module, the input end of the timing module and one input end of the counting module are used as the input ends of the statistical module, one output end and the second output end of the timing module are connected to the second input end and the third input end of the counting module, and the output end of the timing module is used as the output end of the statistical module.

4. The device for detecting the distribution of icy road surface of a highway according to claim 3, characterized by, The timing module comprises a field effect tube, a pulse generator and a first counter, the gate of the field effect tube is used as the input end of the timing module, the drain of the field effect tube is connected to a power supply, the source of the field effect tube, the reset end of the pulse generator and the reset end of the first counter are connected and used as the output end of the timing module, the clock signal receiving end of the pulse generator and the clock signal receiving end of the first counter are connected, and the output end of the first counter is used as the second output end of the timing module.

5. The device for detecting the distribution of icy road surface of a highway according to claim 3, characterized by, The counting module comprises a second counter and an AND gate, one input end and the second input end of the AND gate are used as one input end and the second input end of the counting module, the output end of the AND gate and the clock signal receiving end of the second counter are connected, the reset end of the second counter is used as the third input end of the counting module, and the output end of the second counter is used as the output end of the counting module.

6. The device for detecting the distribution of icy road surface of a highway according to claim 2, characterized by, The infrared module comprises an infrared emitting circuit and an infrared receiving circuit, the output end of the infrared receiving circuit is used as the output end of the infrared module, and the infrared receiving circuit sends a control signal to the statistical module when the infrared receiving circuit receives the infrared light emitted by the infrared emitting circuit.

7. The device for detecting the distribution of icy road surface of a highway according to claim 1, wherein The sensor module comprises a temperature sensor and a humidity sensor, the output end of the temperature sensor and the output end of the humidity sensor are connected to the controller respectively.

8. The device for detecting the distribution of icy road surface of a highway according to claim 1, wherein The camera module comprises two groups of cameras, and the two groups of cameras are connected to the controller respectively; the models of the two groups of cameras are both OV2640.

9. The device for detecting the distribution of icy road surface of a highway according to claim 1, wherein, The display module is also included and connected to the controller.

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