CN113163005A - Intelligent transportation operation and maintenance monitoring and data management and control system based on edge calculation - Google Patents
Intelligent transportation operation and maintenance monitoring and data management and control system based on edge calculation Download PDFInfo
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- CN113163005A CN113163005A CN202110404523.2A CN202110404523A CN113163005A CN 113163005 A CN113163005 A CN 113163005A CN 202110404523 A CN202110404523 A CN 202110404523A CN 113163005 A CN113163005 A CN 113163005A
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Abstract
The invention discloses an intelligent traffic operation and maintenance monitoring and data management and control system based on edge calculation. The system comprises: the edge service unit, the communication transmission supervision unit, the power supply and distribution supervision unit, the display management and control unit and the integrated case management and control module. The invention brings data management, power supply and distribution and transmission communication of the intelligent traffic terminal equipment of the traffic intersection into a system, realizes real-time monitoring of the running state of the intelligent traffic terminal equipment of the traffic intersection, processing and storage of running data, restoration and alarm of system faults and interactive transmission and central uploading of traffic intersection information through the edge service unit, provides fast processing capability based on intersection nodes for traffic management, realizes data exchange and control by taking the intersection as the node, relieves network transmission pressure, reduces delay of data processing, releases the calculation and storage burden of a central computer room intelligent traffic comprehensive control platform, and avoids management vacancy and data loss when the intelligent traffic comprehensive control platform of the central computer room has communication faults.
Description
Technical Field
The invention relates to the technical field of intelligent traffic, in particular to an intelligent traffic operation and maintenance monitoring and data management and control system based on edge calculation.
Background
At present, most of traditional intelligent traffic operation maintenance monitoring and control modes adopt a centralized processing mode, intersection intelligent traffic terminal equipment is directly connected to a central machine room through a network, the operation states of all equipment and collected data are uniformly centralized to a central computing and storing platform, and the operation of the intersection traffic is managed and controlled by utilizing the super computing and storing capacity built in the center.
However, with the increasing of various intelligent traffic terminal devices at traffic intersections and the performance improvement, the computing and storing capacity of the center needs to be improved continuously, and the network bandwidth from the intersection to the center needs to be increased. Meanwhile, the existing centralized processing mode also needs to ensure real-time exchange of data between the central machine room intelligent traffic comprehensive control platform and the intelligent traffic terminal equipment at the intersection, so that safe and stable operation of a transmission network is ensured. In addition, when the intelligent traffic comprehensive management and control platform of the central machine room cannot be connected with the intelligent traffic terminal equipment, the traditional mode cannot accurately distinguish the power supply problem or the communication problem, and often causes repeated work of maintenance personnel and delay of the maintenance work. Therefore, it is necessary to provide an intelligent transportation operation and maintenance monitoring and data management and control system based on edge calculation to solve the above problems.
Disclosure of Invention
The invention aims to provide an intelligent traffic operation and maintenance monitoring and data management and control system based on edge calculation, and aims to solve the problems that once a network fault occurs in the existing intelligent traffic operation, maintenance and management mode, a central machine room intelligent traffic comprehensive management and control platform cannot manage intelligent traffic terminal equipment of an intersection, the traffic problem occurring in a network fault period cannot be solved in time, and when the central machine room intelligent traffic comprehensive management and control platform cannot be connected with the intelligent traffic terminal equipment of the intersection, whether the power supply problem or the communication problem cannot be accurately distinguished, so that the repeated work of maintenance personnel and the delay of the maintenance work are caused.
The invention provides an intelligent traffic operation and maintenance monitoring and data management and control system based on edge calculation, which comprises: the edge service unit, the communication transmission supervision unit, the power supply and distribution supervision unit, the display management and control unit and the integrated case management and control module are arranged; the edge service unit is respectively connected with the communication transmission supervision unit, the power supply and distribution supervision unit, the display management and control unit and the integrated case management and control module; the power supply and distribution supervision unit is respectively connected with a signal control system, an electronic police system, a video monitoring system and an acquisition and release system of the intersection; the communication transmission monitoring unit is respectively connected with the signal control system, the electronic police system, the video monitoring system and the acquisition and release system;
the power supply and distribution monitoring unit is used for monitoring and managing the power supply use states of the signal control system, the electronic police system, the video monitoring system and the collection and distribution system in all weather;
the communication transmission supervision unit is used for acquiring data information of the signal control system, the electronic police system, the video monitoring system and the acquisition and release system in real time, is in communication connection with the intelligent traffic comprehensive management and control platform of the central machine room, and is in communication connection with the communication transmission supervision units in the intelligent traffic operation and maintenance monitoring and data management and control systems at the upstream and downstream intersections;
the display management and control unit is used for carrying out interactive management operation on the system and carrying out display management on an external screen;
the integrated chassis management and control module is used for monitoring the internal environment of the intelligent traffic operation and maintenance monitoring and data management and control system based on edge calculation and the patrol condition of a maintainer in real time, and simultaneously realizing door opening and closing control and alarm management;
the edge service unit is used for monitoring and recording the running conditions of each intelligent traffic terminal device at the intersection in all weather, performing self-repairing control and alarm management on the faults of the intelligent traffic terminal devices, cleaning, analyzing, fusing, storing and distributing data provided by a signal control system, an electronic police system, a video monitoring system, a collecting and releasing system of the intersection and intelligent traffic operation and maintenance monitoring and data management and control systems of upstream and downstream intersections, and performing intelligent optimization control on traffic signals of the intersection.
Optionally, the communication transmission monitoring unit is configured to establish a communication connection with the intelligent traffic operation and maintenance monitoring and data management and control system at the upstream and downstream intersections in a wired or wireless manner; and transmitting the data information of the current intersection to the intelligent traffic operation and maintenance monitoring and data control systems of the upstream and downstream intersections, so that the intelligent traffic operation and maintenance monitoring and data control systems of the upstream and downstream intersections perform analysis and calculation according to the data information, and optimizing and adjusting the traffic operation scheme of the intersection in real time.
Optionally, the data information includes: traffic signal timing information, traffic running congestion information and OD information.
Optionally, the communication transmission monitoring unit is configured to implement data transparent transmission with the central machine room intelligent transportation comprehensive control platform through a communication link between the intelligent transportation operation and maintenance monitoring and data control system at the upstream and downstream intersections and the data control system when direct communication between the intelligent transportation operation and maintenance monitoring and data control system and the central machine room intelligent transportation comprehensive control platform fails.
Optionally, the communication transmission monitoring unit is configured to transmit the fault information to the terminal of the maintenance manager through 4G communication or 5G communication when the intelligent transportation operation and maintenance monitoring and data management and control system and the central machine room intelligent transportation comprehensive management and control platform are in communication fault.
Optionally, the display management and control unit includes: the method comprises the steps of (1) touching an interactive display screen and an LED propaganda display screen; the touch interactive display screen is used for providing information display and interactive management operation modes for a manager during system configuration management, and the LED propaganda display screen is used for providing traffic propaganda information and traffic prompt warning information.
Optionally, the communication transmission monitoring unit is configured with a network electrical port or a network optical port, a 4G communication interface or a 5G communication interface, a wireless correlation interface, a bluetooth interface, a DSRC interface, a serial port, and a Beidou or GPS communication interface.
Optionally, the power supply and distribution supervision unit is configured with an external power supply access master gate, an automatic reclosing switch, a multi-path remote switch socket, a lightning protection monitoring module, a traffic signal output monitoring module, an overrun intelligent control module, a backup uninterruptible power supply and a lithium iron battery.
Optionally, the integrated chassis management and control module is configured with an on-off door control module, an patrol monitoring module, an environment monitoring module and an alarm management module.
The invention has the following beneficial effects: the invention provides an intelligent traffic operation and maintenance monitoring and data management and control system based on edge calculation, which comprises: the edge service unit, the communication transmission supervision unit, the power supply and distribution supervision unit, the display management and control unit and the integrated case management and control module. The invention adopts a highly integrated integration design, uniformly brings data management, power supply and distribution and transmission communication of all intelligent traffic terminal equipment at a traffic intersection into a system, and realizes monitoring and control of the running state, power supply and distribution and data communication of each intelligent traffic terminal equipment. The invention realizes real-time monitoring of the running state of the intelligent traffic terminal equipment of the traffic intersection, processing and storing of running data, repairing and alarming of system faults, interactive transmission of traffic intersection information and central uploading through the edge service unit. The invention provides the rapid processing capability based on the intersection node for traffic management, realizes data exchange and control by taking the intersection as the node, and compared with the management mode that intelligent traffic terminal equipment is directly connected with the intelligent traffic comprehensive management and control platform of the central machine room, the invention can effectively reduce the network transmission pressure, reduce the delay of data processing, release the burden of central calculation and storage, and avoid management vacancy and data loss when the intelligent traffic terminal equipment and the intelligent traffic comprehensive management and control platform of the central machine room are in communication failure.
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In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any inventive exercise.
Fig. 1 is a schematic application environment diagram of an intelligent transportation operation and maintenance monitoring and data management and control system based on edge computing according to an embodiment of the present invention.
Fig. 2 is a schematic composition diagram of an intelligent transportation operation and maintenance monitoring and data management and control system based on edge calculation according to an embodiment of the present invention.
Illustration of the drawings: 1-an edge service unit; 2-a communication transmission supervision unit; 3-power supply and distribution supervision unit; 4-displaying a management and control unit; 5-integrating a case management and control module; 100-an intelligent transportation operation and maintenance monitoring and data management and control system; 200-a central machine room intelligent traffic comprehensive control platform; 41-LED propaganda display screen; 42-touch interactive display screen.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1 and 2, in order to overcome the disadvantages of the traditional centralized processing method of intelligent transportation, the present invention provides an intelligent transportation operation and maintenance monitoring and data management and control system based on edge computing, which integrates an edge service unit 1, a communication transmission supervision unit 2, a power supply and distribution supervision unit 3, a display management and control unit 4, and an integrated chassis management and control module 5 (hereinafter referred to as an intelligent transportation operation and maintenance monitoring and data management and control system 100).
The intelligent transportation operation and maintenance monitoring and data management and control system 100 is installed at a traffic intersection, and the intelligent transportation operation and maintenance monitoring and data management and control system 100 at different intersections (such as the intersection 1 and the intersection 2. the intersection N in fig. 1) can communicate with the central machine room intelligent transportation comprehensive management and control platform 200.
The edge service unit 1 is connected with the communication transmission supervision unit 2, the power supply and distribution supervision unit 3, the display management and control unit 4 and the integrated chassis management and control module 5 respectively. The power supply and distribution supervision unit 3 is respectively connected with a signal control system, an electronic police system, a video monitoring system and a collection and release system of the intersection. The communication transmission monitoring unit 2 is also respectively connected with the signal control system, the electronic police system, the video monitoring system and the collection and release system. The signal control system, the electronic police system, the video monitoring system and the collecting and releasing system of the intersection and the intelligent traffic terminal equipment contained in the system are all the prior art. The invention adopts a high integration mode and adopts the size of a standard cabinet to integrate all units in a special outdoor cabinet.
In this embodiment, the edge service unit 1 is configured to perform all-weather monitoring and recording on the operation conditions of each intelligent traffic terminal device at an intersection, perform self-repair control and alarm management on the faults of the intelligent traffic terminal devices, perform cleaning, analysis, fusion, storage and distribution on data provided by a signal control system, an electronic police system, a video monitoring system, a collection and distribution system at the intersection, and an intelligent traffic operation and maintenance monitoring and data management and control system at an upstream intersection and a downstream intersection, and perform intelligent optimization control on traffic signals at the intersection.
Specifically, the edge service Unit mainly includes a Central Processing Unit (abbreviated as CPU), a Graphics Processing Unit (abbreviated as GPU), a Memory (Memory), a Storage (Storage), and other supporting components, the edge service Unit stores a computer program and loads a supporting operating system and a database, and the computer program is executed by the Central Processing Unit to implement part or all of the steps in the edge service Unit workflow of the intelligent transportation operation and maintenance monitoring and data management and control system based on edge computing provided by the present invention, so as to implement access management, power management, communication management, data management, security management, control management, and the like of each Unit of the intelligent transportation operation and maintenance monitoring and data management and control system 100, and mainly complete acquisition, maintenance, and application data information of the intelligent transportation terminal device at the intersection, Storing and managing, and sending control commands of fault repair, fault alarm, signal timing optimization and the like after analyzing and processing relevant information.
In this embodiment, the communication transmission supervision unit 2 is used for collecting data information of the signal control system, the electronic police system, the video monitoring system and the collection and release system in real time, and is in communication connection with the intelligent transportation comprehensive management and control platform of the central machine room, and is in communication connection with the communication transmission supervision units in the intelligent transportation operation and maintenance monitoring and data management and control systems at the upstream and downstream intersections.
Specifically, the communication transmission monitoring unit 2 may establish a communication connection with the intelligent transportation operation and maintenance monitoring and data control system 100 at the upstream and downstream intersections in a wired or wireless manner, and transmit the data information of the current intersection to the intelligent transportation operation and maintenance monitoring and data control system 100 at the upstream and downstream intersections, so that the intelligent transportation operation and maintenance monitoring and data control system 100 at each upstream and downstream intersection performs analysis and calculation according to the data information, optimizes and adjusts the transportation operation scheme at its own intersection in real time, and effectively improves the traffic efficiency. The data information may specifically include: traffic signal timing information, traffic operation congestion information, and travel (OD) information. The intelligent transportation operation and maintenance monitoring and data management and control system 100 can also be directly connected to the central machine room intelligent transportation comprehensive management and control platform 200 to realize the uploading and downloading of data information.
In addition, the communication transmission supervision unit 2 can also realize data transmission with the central machine room intelligent transportation comprehensive control platform through a communication link between the intelligent transportation operation and maintenance monitoring and data control system of the upstream and downstream intersections when the direct communication between the intelligent transportation operation and maintenance monitoring and data control system 100 and the central machine room intelligent transportation comprehensive control platform 200 fails. The communication transmission supervision unit 2 may also transmit the fault information to the terminal of the maintenance manager through 4G communication or 5G communication in the case of a communication fault between the intelligent transportation operation and maintenance monitoring and data management and control system 100 and the central machine room intelligent transportation comprehensive management and control platform 200.
Specifically, the Communication transmission monitoring unit 2 may be configured with a network electrical port or a network optical port, a 4G Communication interface or a 5G Communication interface, a wireless correlation interface, a bluetooth interface, a Dedicated Short Range Communication (DSRC) interface, a serial port, and a beidou or Global Positioning System (GPS) Communication interface. The network electric port or the network optical port mainly realizes the communication connection between each intelligent traffic terminal device at the intersection and the intelligent traffic comprehensive control platform 200 of the central machine room. The 4G communication interface or the 5G communication interface mainly ensures that fault information can be transmitted in time under the condition of communication faults of the intelligent transportation comprehensive control platform 200 of the central machine room. The wireless correlation interface can realize communication connection between the intelligent traffic operation and maintenance monitoring and data management and control system 100 of the upstream and downstream nodes. The bluetooth interface may provide access to a specially configured intelligent transportation terminal device. The DSRC interface provides a communication link for vehicle-road cooperation, the serial port provides an input and output interface for special control and professional protocols of intelligent traffic terminal equipment, and the Beidou or GPS communication interface provides positioning information and clock calibration of a system.
In the present embodiment, the power supply and distribution supervision unit 3 is used for monitoring and managing the power supply use states of the signal control system, the electronic police system, the video monitoring system and the collection and distribution system in all weather. The power supply and distribution supervision unit 3 can be specifically configured with an external power supply access master gate, an automatic reclosing switch, a multi-path remote switch socket, a lightning protection monitoring module, a traffic signal output monitoring module, an overrun intelligent control module, a backup uninterruptible power supply, a large-capacity lithium iron battery and other components.
Specifically, the power supply and distribution supervision unit 3 has the functions of voltage and current monitoring and alarming, network restart control and backup power supply, the output end of the power supply and distribution supervision unit is respectively connected with the power supply input ends of each device in the system and each intelligent traffic terminal device at the intersection, the monitoring and management of each power supply are realized, and the normal operation of key devices is guaranteed under the condition of external power supply faults. The traffic signal output monitoring module is connected with the lamp control output end of the traffic signal controller, so that power supply monitoring of each traffic signal lamp is realized, and fault alarm information is sent in time when relevant faults occur.
In the present embodiment, the display management unit 4 is used for interactive management operations of the system, and display management of the external screen.
Specifically, the display management and control unit 4 includes a touch interaction display screen 42 and an LED advertisement display screen 41. The touch interactive display screen 42 is used for providing information display and interactive management operation mode for system configuration management for a manager, the LED propaganda display screen 41 is used for providing traffic propaganda information and traffic prompt warning information, and information which needs to be displayed by some traffic managers.
In this embodiment, the integrated chassis management and control module 5 is used for monitoring the internal environment and the maintainer patrol condition of the intelligent transportation operation and maintenance monitoring and data management and control system based on edge calculation in real time, and simultaneously realizes door opening and closing control and alarm management.
Specifically, the integrated chassis management and control module 5 is configured with a switch door control module, a patrol monitoring module, an environment monitoring module and an alarm management module. The door opening and closing control module can ensure that the authorized personnel only allow the cabinet to be opened, and the door opening can also be realized through remote control. The patrol monitoring module is used for recording patrol maintenance time and times of the operation and maintenance professionals on the road junction equipment, and is convenient for managers to check the maintainers. The environment monitoring module is used for monitoring the temperature and humidity and the water invasion condition in the cabinet in real time, and when the environment condition exceeds the allowable range, the system is informed to execute corresponding treatment measures, so that the safe use of the equipment is guaranteed. When receiving the relevant alarm information, the alarm management module adopts different alarm modes according to different grades, can prompt the alarm information through an audible and visual alarm and an LED propaganda display screen, and can also directly transmit the alarm information to a corresponding management department or manager.
The intelligent traffic operation and maintenance monitoring and data management and control system based on edge computing adopts edge computing technology, provides fast processing capacity based on intersection nodes for traffic management, realizes data exchange and control by taking intersections as nodes, can effectively reduce network transmission pressure, reduce data processing delay, release calculation and storage burden of the central computer room intelligent traffic comprehensive management and control platform, can avoid management vacancy and data loss when the intelligent traffic terminal equipment and the central computer room intelligent traffic comprehensive management and control platform are in communication failure compared with the traditional management mode of directly connecting intelligent traffic terminal equipment to the central computer room intelligent traffic comprehensive management and control platform, and realizes data transparent transmission with the central computer room intelligent traffic comprehensive management and control platform through communication links with upstream and downstream intersections. And under the condition of communication faults with the central machine room intelligent transportation comprehensive management and control platform, fault information is sent to operation and maintenance management personnel through a 4G or 5G communication module. The invention can accurately judge the fault problem of the intelligent traffic terminal equipment at the intersection by monitoring and managing power supply and distribution and communication data, and can realize the self-repairing function of simple faults by the control modes of automatic restart and power-off reset, thereby improving the use efficiency of the intelligent traffic terminal equipment and reducing the workload of maintenance personnel.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention.
Claims (9)
1. The utility model provides an intelligent transportation operation and maintenance monitoring and data management and control system based on edge calculation which characterized in that includes: the edge service unit, the communication transmission supervision unit, the power supply and distribution supervision unit, the display management and control unit and the integrated case management and control module are arranged; the edge service unit is respectively connected with the communication transmission supervision unit, the power supply and distribution supervision unit, the display management and control unit and the integrated case management and control module; the power supply and distribution supervision unit is respectively connected with a signal control system, an electronic police system, a video monitoring system and an acquisition and release system of the intersection; the communication transmission monitoring unit is respectively connected with the signal control system, the electronic police system, the video monitoring system and the acquisition and release system;
the power supply and distribution monitoring unit is used for monitoring and managing the power supply use states of the signal control system, the electronic police system, the video monitoring system and the collection and distribution system in all weather;
the communication transmission supervision unit is used for acquiring data information of the signal control system, the electronic police system, the video monitoring system and the acquisition and release system in real time, is in communication connection with the intelligent traffic comprehensive management and control platform of the central machine room, and is in communication connection with the communication transmission supervision units in the intelligent traffic operation and maintenance monitoring and data management and control systems at the upstream and downstream intersections;
the display management and control unit is used for carrying out interactive management operation on the system and carrying out display management on an external screen;
the integrated chassis management and control module is used for monitoring the internal environment of the intelligent traffic operation and maintenance monitoring and data management and control system based on edge calculation and the patrol condition of a maintainer in real time, and simultaneously realizing door opening and closing control and alarm management;
the edge service unit is used for monitoring and recording the running conditions of each intelligent traffic terminal device at the intersection in all weather, performing self-repairing control and alarm management on the faults of the intelligent traffic terminal devices, cleaning, analyzing, fusing, storing and distributing data provided by a signal control system, an electronic police system, a video monitoring system, a collecting and releasing system of the intersection and intelligent traffic operation and maintenance monitoring and data management and control systems of upstream and downstream intersections, and performing intelligent optimization control on traffic signals of the intersection.
2. The intelligent transportation operation and maintenance monitoring and data management and control system based on edge computing as claimed in claim 1, wherein the communication transmission supervision unit is configured to establish communication connection with the intelligent transportation operation and maintenance monitoring and data management and control system at the upstream and downstream intersections in a wired or wireless manner; and transmitting the data information of the current intersection to the intelligent traffic operation and maintenance monitoring and data control systems of the upstream and downstream intersections, so that the intelligent traffic operation and maintenance monitoring and data control systems of the upstream and downstream intersections perform analysis and calculation according to the data information, and optimizing and adjusting the traffic operation scheme of the intersection in real time.
3. The intelligent transportation operation and maintenance monitoring and data management and control system based on edge calculation as claimed in claim 2, wherein the data information comprises: traffic signal timing information, traffic running congestion information and OD information.
4. The intelligent transportation operation and maintenance monitoring and data management and control system based on edge computing as claimed in claim 1, wherein the communication transmission supervision unit is configured to implement data transparent transmission with the central machine room intelligent transportation integrated control platform through a communication link between the intelligent transportation operation and maintenance monitoring and data management system at an upstream intersection and the intelligent transportation operation and maintenance monitoring and data management system at a downstream intersection in case that direct communication between the intelligent transportation operation and maintenance monitoring and data management and control system and the central machine room intelligent transportation integrated control platform fails.
5. The intelligent transportation operation and maintenance monitoring and data management and control system based on edge computing as claimed in claim 1, wherein the communication transmission supervision unit is configured to transmit fault information to the maintenance manager terminal through 4G communication or 5G communication in case of a communication fault between the intelligent transportation operation and maintenance monitoring and data management and control system and the central machine room intelligent transportation comprehensive management and control platform.
6. The intelligent transportation operation and maintenance monitoring and data management and control system based on edge calculation as claimed in claim 1, wherein the display management and control unit comprises: the method comprises the steps of (1) touching an interactive display screen and an LED propaganda display screen; the touch interactive display screen is used for providing information display and interactive management operation modes for a manager during system configuration management, and the LED propaganda display screen is used for providing traffic propaganda information and traffic prompt warning information.
7. The intelligent transportation operation and maintenance monitoring and data management and control system based on edge computing as claimed in claim 1, wherein the communication transmission supervision unit is configured with a network electric port or a network optical port, a 4G communication interface or a 5G communication interface, a wireless correlation interface, a bluetooth interface, a DSRC interface, a serial port, and a Beidou or GPS communication interface.
8. The intelligent transportation operation and maintenance monitoring and data management and control system based on edge computing of claim 1, wherein the power supply and distribution supervision unit is configured with an external power access bus, an automatic reclosing lock, a multi-path remote switch socket, a lightning protection monitoring module, a traffic signal output monitoring module, an over-limit intelligent control module, a backup uninterruptible power supply and a lithium iron battery.
9. The intelligent transportation operation and maintenance monitoring and data management and control system based on edge computing as claimed in claim 1, wherein the integrated chassis management and control module is configured with an on-off door control module, a night patrol monitoring module, an environment monitoring module and an alarm management module.
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| CN115065964B (en) * | 2022-07-07 | 2023-09-08 | 西安电子科技大学 | Directional release method for vehicle accident information |
| CN116938288A (en) * | 2023-09-15 | 2023-10-24 | 济南良博信息技术有限公司 | Traffic equipment supervision method, equipment and medium based on power line carrier communication |
| CN116938288B (en) * | 2023-09-15 | 2023-12-08 | 济南良博信息技术有限公司 | Traffic equipment supervision method, equipment and medium based on power line carrier communication |
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Application publication date: 20210723 |