A vehicle-mounted comprehensive detection system for highway traffic meteorology

Abstract

The application relates to a vehicle-mounted highway traffic meteorological detection system which comprises a meteorological detection module, a road condition inspection module, a video image acquisition module, a network communication module, a main control module, a display module and a power supply module; the meteorological detection module is used for fixed-point detection of meteorological elements when visibility obstacles such as rain and fog occur; the road condition inspection module is used for mobile detection of road surface conditions, road surface temperature and position coordinates; the video image acquisition module is used for acquisition of on-site images; the network communication module is used for data exchange and transmission; the display module is used for display of various types of data of the system; the main control module is used for control of working states of various module sub-devices and processing and storage of data; and the power supply system is used for power supply of various modules. The application realizes quick integration of traffic meteorological mobile detection data into an existing meteorological business information network through vehicle mechanical deployment, and can be applied to road traffic severe weather monitoring and early warning, meteorological emergency guarantee service and scientific experimental research.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of meteorological observation, in particular to a vehicle-mounted highway traffic meteorological detection system. BACKGROUND

[0002] With the continuous growth of highway mileage, road traffic safety risks are intertwined and superimposed, especially the occurrence of low visibility, low temperature freezing and other weather, which greatly affects the travel experience and traffic efficiency, and puts forward higher requirements for road traffic adverse weather monitoring and early warning work.

[0003] The traditional traffic meteorological observation method is mainly based on station construction, and traffic meteorological stations are constructed at the observation sites along the road to automatically monitor the local wind direction, wind speed, air temperature, humidity, rainfall, visibility and the like. However, due to natural, economic and other conditions, the construction interval of traffic meteorological stations is usually not less than ten or even dozens of kilometers, resulting in local thick fog and road dark ice missing, which seriously cannot meet the demand of road traffic early warning disposal for fine meteorological monitoring. Therefore, in order to improve the meteorological emergency support capability of highway emergencies, and prevent the adverse effects caused by thick fog, snow and freezing and other adverse weather, it is urgent to realize the mobile and continuous observation of highway traffic meteorological disasters, and improve the comprehensive monitoring capability of road traffic adverse weather. SUMMARY

[0004] In order to respond to the road traffic adverse weather monitoring and early warning and the on-site meteorological emergency support service of emergencies, the present application provides a vehicle-mounted highway traffic meteorological detection system.

[0005] The vehicle-mounted highway traffic meteorological detection system provided by the present application comprises a meteorological detection module, a road condition inspection module, a video image acquisition module, a network communication module, a main control module, a display module and a power supply module; the meteorological detection module is used for fixed-point detection of meteorological elements when visibility obstacles such as rain and fog occur; the road condition inspection module is used for mobile detection of road surface conditions, road surface temperature and position coordinates; the video image acquisition module is used for acquisition of on-site images; the network communication module is used for exchange and transmission of data; the display module is used for display of various data of the system; the main control module is used for control of working states of each module and sub-device, and processing and storage of data; and the power supply system is used for power supply of each module.

[0006] Through the above technical scheme, the meteorological elements are detected by the meteorological detection module, including atmospheric temperature, relative humidity, wind speed and direction, visibility, raindrop spectrum, fogdrop spectrum, etc., the road surface temperature, the dry, wet, ice, snow state and the corresponding position information of the road surface are measured by the road condition inspection system; the weather live and the image of the highway surface can be collected by the video image acquisition module; the communication of each module and the transmission of data can be realized through the network communication module; it can be applied to road traffic severe weather monitoring and early warning, meteorological emergency support service and scientific experiment research.

[0007] Optionally, the meteorological detection module includes an automatic weather station, a visibility meter, a raindrop spectrometer and a fogdrop spectrometer; the automatic weather station, the visibility meter, the raindrop spectrometer and the fogdrop spectrometer are connected with a serial server, the serial server is connected with a switch, and the switch is connected with the main control module to send data into the main control module.

[0008] Through the above technical scheme, the automatic weather station is used to observe temperature, atmospheric pressure, humidity, wind speed, wind direction and other conventional meteorological elements; the visibility meter is used to measure the atmospheric extinction coefficient and output the atmospheric visibility; the raindrop spectrometer is used to measure the diameter and speed of the precipitation particles and other parameters, and the extinction coefficient of the raindrop particles is calculated from the raindrop spectrum; the fogdrop spectrometer is used to measure the particle size, number concentration and water content of the fogdrop particles and other microphysical structures, and the extinction coefficient of the fogdrop particles is calculated from the fogdrop spectrum; the comprehensive monitoring capability of the visual range obstacle can be further improved, and the basic research data for the disaster-causing mechanism analysis of low visibility is provided.

[0009] Optionally, the road condition inspection module includes a road surface state sensor, a road surface temperature sensor, a temperature and humidity probe and a GNSS receiver; the road surface state sensor, the road surface temperature sensor, the temperature and humidity probe and the GNSS receiver are connected with the main control module.

[0010] Through the above technical scheme, the dry, wet, ice, snow state of the road surface is detected by the road surface state sensor; the road surface temperature data is measured by the road surface temperature sensor; the air temperature and humidity are collected by the temperature and humidity probe, and the dew point temperature is calculated as an auxiliary judgment of whether the road surface is condensation or frosting; the longitude, latitude and altitude position information are collected by the GNSS receiver; the mobile monitoring capability of the road condition can be further improved, which is helpful for the investigation of the road icing hidden danger section.

[0011] Optionally, the power supply module includes a distribution box power supply system and a chassis power supply system; the distribution box power supply system supplies power for the meteorological detection module and the UPS power distribution circuit; the chassis power supply system supplies power for the road condition inspection module and the UPS power distribution circuit; the UPS power distribution circuit supplies power for the video image acquisition module, the network communication module, the display module and the main control module.

[0012] Through the technical scheme, the power distribution box power supply system adopts external power supply to supply power to the weather detection module; the chassis power supply adopts the vehicle-mounted storage battery to supply power, and is suitable for supplying power to the road condition inspection module during driving.

[0013] Optionally, the power distribution box power supply system comprises a power supply aperture and a power distribution box, the power supply aperture is used for connecting a commercial power cable or an oil machine cable, the power distribution box is connected with the power supply aperture, and the power distribution box is used for supplying power to the weather detection module and the UPS power distribution circuit.

[0014] Through the technical scheme, the commercial power cable or the oil machine cable is connected through the power supply aperture, so that the commercial power or the power generated by the oil machine can be connected, and power supply management is performed through the power distribution box.

[0015] Optionally, the UPS power distribution circuit comprises a UPS host, a UPS battery pack and a power adapter board, and the power adapter board is connected with each device of the video image acquisition module, the network communication module, the display module and the main control module.

[0016] Through the technical scheme, the video image acquisition module, the network communication module, the display module and the main control module are powered through the output UPS power adapter board, so that the stability of power supply can be ensured, and sudden power failure during use of the device is prevented.

[0017] Optionally, the video image acquisition module comprises a vehicle roof pan-tilt camera and a vehicle tail rear network camera.

[0018] Through the technical scheme, the pan-tilt camera is used in cooperation with the weather detection module, and the rear network camera is used in cooperation with the road condition inspection module; during fixed-point observation, live images of rain, fog and other visual obstacles are acquired through the pan-tilt camera; during mobile observation, road surface images are acquired through the rear network camera.

[0019] Optionally, the display module comprises a plurality of displays, and each display is connected with the main control module through a VGA matrix.

[0020] Through the technical scheme, the main control module is connected with each display through the VGA matrix, and different information can be sent to different displays for display.

[0021] Optionally, the network communication module comprises a 4G router, a serial server, a switch, a desktop information box and an external signal aperture, and the 4G router is connected with the switch through the serial server.

[0022] Through the technical scheme, by arranging the 4G router, the detected data can be sent back to the monitoring center through the 4G router for display.

[0023] Optionally, the external signal ports include a VGA interface, a serial port interface, and a network interface; the VGA interface is connected to a VGA matrix, the serial port interface is connected to a serial server, and the network interface is connected to a switch.

[0024] The above technical solution facilitates external data input by providing external signal ports that include VGA, serial, and network interfaces.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The vehicle-mounted highway traffic meteorological detection system of this application can be deployed by vehicles to independently complete traffic meteorological detection tasks, make up for the lack of density of traffic meteorological stations along the road, and further improve the comprehensive monitoring capability of severe road traffic weather.

[0027] 2. The vehicle-mounted highway traffic meteorological detection system of this application has multiple power supply methods, including mains power, generator, chassis and UPS, which can not only complete the mobile detection task of the low power road condition inspection module, but also meet the fixed-point observation requirements of the high power meteorological detection module.

[0028] 3. The vehicle-mounted highway traffic meteorological detection system of this application achieves simultaneous acquisition of multiple elements from different detection devices and comprehensive display of multi-source data through the connection and interaction between the serial port server, switch, main control module and VGA matrix, enabling emergency response personnel to make traffic meteorological service decisions and judgments while in the vehicle. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the system connection according to an embodiment of this application.

[0030] Figure 2 This is a connection diagram of the power supply system of the distribution box according to an embodiment of this application.

[0031] Figure 3 This is a connection diagram of the UPS power distribution circuit according to an embodiment of this application.

[0032] Figure 4 This is a connection diagram of the chassis power supply system according to an embodiment of this application. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0034] Reference Figure 1The embodiment of the application discloses a vehicle-mounted highway traffic meteorological detection system, which comprises a meteorological detection module, a road condition inspection module, a video image acquisition module, a network communication module, a main control module, a display module and a power supply module. The meteorological detection module is used for fixed-point detection of meteorological elements when visual range obstacles such as rain and fog occur; the road condition inspection module is used for mobile detection of road surface conditions, road surface temperature and position coordinates; the video image acquisition module is used for acquisition of on-site images; the network communication module is used for data exchange and transmission; the display module is used for display of various types of data of the system; the main control module is used for control of working states of each module sub-device and processing and storage of data; and the power supply system is used for power supply of each module.

[0035] The meteorological detection module comprises an automatic weather station, a visibility meter, a raindrop spectrometer and a fogdrop spectrometer, the automatic weather station, the visibility meter, the raindrop spectrometer and the fogdrop spectrometer are connected to a serial port server through serial ports, the serial port server is connected to a switch through a network port, and the switch is connected to the main control module, that is, an industrial computer, through a network port. The automatic weather station adopts Vaisala WXT520 and is used for observing atmospheric temperature, air pressure, humidity, wind direction and wind speed; the visibility meter adopts Vaisala PWD52 and can continuously measure atmospheric visibility of 10-35000 meters and automatically judge whether there is precipitation and identify weather phenomena such as rain, snow and fog. The raindrop spectrometer adopts OTT Parsivel2 and is used for measuring parameters such as precipitation particle diameter, speed, distribution density, rain intensity and cumulative rainfall; and the fogdrop spectrometer adopts DMT FM120 and is used for continuously measuring microphysical structures such as particle diameter, number concentration and water content of fogdrop particles in real time. The meteorological detection module is suitable for fixed-point detection, generally collects physical elements affecting visibility in a service area or a toll station, improves the emergency monitoring capability of visual range obstacles, and also provides basic research data for a low-visibility prediction algorithm.

[0036] The road condition inspection module comprises a road surface state sensor, a road surface temperature sensor, a temperature and humidity probe and a GNSS receiver; the road surface state sensor, the road surface temperature sensor, the temperature and humidity probe and the GNSS receiver are connected with the industrial computer III of the main control module. The road surface state sensor is used for detecting whether there is water or ice crystal component on the road surface; the road surface temperature sensor is used for measuring road surface temperature data; the temperature probe is used for measuring air temperature and humidity data and calculating dew point temperature as auxiliary judgment of whether the road surface is dewy or frosted; and the GNSS receiver is used for collecting position information such as longitude, latitude and altitude. The road condition inspection module is suitable for mobile detection, collects road surface conditions, road surface temperature and position coordinates in the process of driving, can help to investigate road icing hidden danger sections, and provides operation guidance for maintenance personnel to spread snow-melting agent.

[0037] The video image acquisition module comprises a roof pan-tilt camera and a rear network camera, the pan-tilt camera is used in combination with the weather detection module to acquire live images of weather such as rain and fog at a fixed point, and the rear network camera is used in combination with the road condition inspection module to acquire images of the road surface in movement, and the rear network camera is directly connected to the industrial computer III.

[0038] The hard disk recorder in the display module is connected to the pan-tilt camera to store the acquired live images, and is connected to the main display through an HDMI interface, in addition, the hard disk recorder is also connected to the VGA matrix through a VGA interface. The VGA matrix has three output sources, which are the main display, the auxiliary display I and the auxiliary display II, at the same time, the VGA matrix is also connected to the industrial computer I and the industrial computer II of the main control module as the input source of the video, so that the monitoring information of different detection devices can be sent to the main display or the auxiliary display at the same time, and the synchronous display of multi-source data is realized, which facilitates the traffic meteorological service decision-making of the emergency support personnel in the vehicle.

[0039] The display module further comprises a tablet computer, the tablet computer is provided with a road condition inspection display software and is connected to the industrial computer III through Bluetooth. During the movement detection, the operator can query the position of the vehicle, the dew point temperature, the road surface temperature and the road surface state of the position and directly see the spatial distribution of the road surface temperature of the collected road section through the handheld tablet in the cab.

[0040] The network communication module comprises a 4G router, a serial server, a switch, a desktop information box and an external signal port. The 4G router is connected to the switch through the serial server to realize the connection between the vehicle-mounted system and the Internet, and the data and images detected by the system can be transmitted back to the upper monitoring center for real-time display.

[0041] The signal port is arranged on the outside of the vehicle wall, the external signal port comprises a VGA interface, a serial interface and a network interface, the VGA interface is connected to the VGA matrix, the serial interface is connected to the serial server, and the network interface is connected to the switch. By arranging the external signal port comprising the VGA interface, the serial interface and the network interface, the expansibility of the system is enhanced, and other newly added detection instruments can also be connected to the vehicle-mounted system through the signal port.

[0042] The desktop information box is arranged on the inside of the vehicle wall, the desktop information box is provided with fixed network interfaces and VGA interfaces, which are connected to the system through the switch and the VGA matrix respectively, the fixed network interfaces and the VGA interfaces on the desktop information box are used to connect video conference equipment, so that the operator can conveniently communicate with the outside world through multimedia information such as video and audio, and realize the upward and downward transmission of instructions and the on-site office command. At the same time, the desktop information box is also provided with a socket.

[0043] When conducting fixed-point detection of visibility obstacles such as rain and fog, the weather detection module, video image acquisition module, network communication module, display module, and main control module are generally activated, powered by a power distribution box system, as per [reference needed]. Figure 2 and Figure 3 The power supply system of the distribution box includes a power outlet and a distribution box. The power outlet is used to connect the mains power cable or the generator cable, and the distribution box is connected to the power outlet.

[0044] The power port has two power supply options: mains power cable and generator cable. In cases where the vehicle-mounted highway traffic meteorological detection system cannot obtain mains power, it can generate electricity independently in an emergency by configuring a generator. The power port is also equipped with a grounding terminal. The system equipment is connected to the grounding copper busbar inside the vehicle through a grounding wire, and then connected to the grounding pile outside the vehicle through the grounding terminal to ensure reliable grounding of the system.

[0045] The distribution box is a power input / output control unit, equipped with input power voltage indication, output power frequency indication, a main power switch, and branch circuit switches. The distribution units include lighting, engine compartment lighting, vehicle air conditioning, roof-mounted exhaust fans, sockets on the desktop information box, the boom for the automatic weather station, UPS power distribution circuits, and weather detection modules. Operators can independently turn power on and off for specific distribution units as needed.

[0046] The UPS power distribution circuit includes the UPS main unit, UPS battery pack, and power adapter board. The power adapter board connects to the UPS main unit and supplies power to the video image acquisition module, network communication module, display module, and main control module by outputting current from the UPS battery pack. The connection diagram of the UPS power distribution circuit is shown below. Figure 3 As shown, a UPS is used to power the industrial control unit, switches, routers, serial servers, VGA matrix, monitors, cameras, and other equipment. When accepting fixed-point observation transfers or switching to mobile detection missions, it is not necessary to shut down the entire vehicle-mounted system. Only the power supply of the four meteorological detection modules needs to be turned off, while the other equipment remains in normal working condition, enabling the system to quickly respond to mobile deployment requirements.

[0047] When mobile sensors detect road conditions and temperature, the road condition inspection module, video image acquisition module, network communication module, display module, and main control module are typically activated, powered by the chassis power supply system. (Refer to...) Figure 4 The chassis power supply system includes a car battery and a chassis power supply control box connected to the car battery. To protect the chassis battery and facilitate overload protection and control of various loads, the chassis power supply control box controls the power supply of the road condition inspection module, the support leg control box and the UPS power distribution circuit through a circuit breaker.

[0048] The direct current of the automobile storage battery is supplied to the chassis power supply control box to directly supply power to the road surface state sensor, the road surface temperature sensor, the temperature and humidity probe and the GNSS receiver, and the rear network camera, the industrial computer III, the switch, the router, the serial server and other devices used in cooperation with the road condition inspection module for mobile collection are supplied with power through the UPS power distribution circuit.

[0049] When the vehicle-mounted highway traffic weather detection system needs to carry out long-term field fixed-point observation tasks, the electric support legs can be adjusted downward to the ground through the control keyboard to realize the balanced support of the whole vehicle, thereby reducing the load of the vehicle suspension system and the tire.

[0050] The embodiments of the specific implementation are the preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A vehicle-mounted highway traffic meteorological detection system, characterized in that: The application relates to a meteorological detection module, a road condition inspection module, a video image acquisition module, a network communication module, a main control module, a display module and a power supply module; the meteorological detection module is connected with the main control module and is used for fixed-point detection of meteorological elements when a visual obstacle occurs; the road condition inspection module is connected with the main control module and is used for mobile detection of road surface conditions, road surface temperatures and position coordinates; the video image acquisition module is used for collecting on-site images; the network communication module is used for data exchange and transmission; the display module is used for displaying various types of data of the system; the main control module is used for controlling the working states of various module sub-devices and processing and storing data; the power supply module is used for supplying power to various modules; the meteorological detection module comprises an automatic weather station, a visibility instrument, a raindrop spectrometer and a fogdrop spectrometer; the automatic weather station, the visibility instrument, the raindrop spectrometer and the fogdrop spectrometer are all connected with a serial port server; the serial port server is connected with a switch; the switch is connected with the main control module; data is sent into the main control module; the road condition inspection module comprises a road surface state sensor, a road surface temperature sensor, a temperature and humidity probe and a GNSS receiver; the road surface state sensor, the road surface temperature sensor, the temperature and humidity probe and the GNSS receiver are connected with the main control module; the power supply module comprises a distribution box power supply system and a chassis power supply system; the distribution box power supply system supplies power for the meteorological detection module and a UPS power distribution circuit; the chassis power supply system supplies power for the road condition inspection module and the UPS power distribution circuit; the distribution box power supply system comprises a power supply hole and a distribution box; the power supply hole is used for connecting a commercial power cable or an oil machine cable; the distribution box is connected with the power supply hole; the UPS power distribution circuit comprises a UPS host, a UPS battery pack and a power adapter plate; the power adapter plate is connected with the UPS host and supplies power for various devices of the video image acquisition module, the network communication module, the display module and the main control module; the video image acquisition module comprises a vehicle roof pan-tilt camera and a vehicle tail rear network camera.

2. The vehicle-mounted highway weather detection system according to claim 1, wherein: The display module comprises a plurality of displays; each display is connected with the main control module through a VGA matrix.

3. The vehicle-mounted highway weather detection system according to claim 1, wherein: The network communication module comprises a 4G router, a serial port server, a switch, a desktop information box and an external signal hole; the 4G router is connected with the switch through the serial port server.

4. The vehicle mounted highway weather detection system of claim 3 wherein: The external signal hole comprises a VGA interface, a serial port interface and a network interface; the VGA interface is connected with the VGA matrix; the serial port interface is connected with the serial port server; and the network interface is connected with the switch.

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