CN105551252A - Traffic state acquisition roadside device facing vehicle networking application - Google Patents
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Abstract
本发明公开一种面向车联网应用的交通状态采集的路侧设备，包括：主控模块，根据人机接口模块、同级和/或上级交互控制模块的内部、同级和/或上级工作指令控制其他各模块，转发交通状态数据；DSRC控制模块，与移动车辆进行数据交互；同级交互控制模块，与其他路侧设备进行数据交互；上级交互控制模块，与交管中心服务器进行数据交互；数据处理与存储模块，对主控模块转发的交通状态数据进行数据处理和/或存储；人机接口模块，接收交通管理人员的内部工作指令。本发明实现路侧设备与车载设备、交管中心的通信集成。
The invention discloses a roadside device for traffic state collection oriented to the application of the Internet of Vehicles, comprising: a main control module, according to the internal, same-level and/or superior-level work instructions of the man-machine interface module, the same-level and/or superior-level interactive control module Control other modules and forward traffic status data; DSRC control module, for data interaction with mobile vehicles; same-level interactive control module, for data interaction with other roadside equipment; upper-level interactive control module, for data interaction with the traffic management center server; data The processing and storage module processes and/or stores the traffic status data forwarded by the main control module; the man-machine interface module receives internal work instructions from traffic management personnel. The invention realizes the communication integration of the roadside equipment, the vehicle equipment and the traffic control center.
Description
技术领域technical field
本发明涉及智能交通领域。更具体地，涉及一种面向车联网应用的交通状态采集的路侧设备。The invention relates to the field of intelligent transportation. More specifically, it relates to a roadside device for traffic state collection for Internet of Vehicles applications.
背景技术Background technique
车联网技术是车内网、车际网、互联网的融合。是以车内网、车际网和互联网为基础，按照约定的通信协议和数据交互标准，在V2X(X为车、路、人、互联网等)之间，进行无线通信和信息交换的大系统网络，是能够实现智能动态信息服务和车辆智能化控制的一体化网络。The Internet of Vehicles technology is the integration of intra-vehicle network, inter-vehicle network and Internet. It is a large system for wireless communication and information exchange between V2X (X is vehicles, roads, people, Internet, etc.) The network is an integrated network that can realize intelligent dynamic information services and intelligent control of vehicles.
车联网的出现是在目前城市汽车保有量不断增加，城市交通拥挤、交通事故频发、交通环境恶化的背景下，为解决道路交通的安全、高效，环保问题而提出的涉及状态采集、数据通信、数据处理和应用等不同领域的一大类技术。The emergence of the Internet of Vehicles is the current urban car ownership is increasing, urban traffic congestion, frequent traffic accidents, traffic environment deterioration background, in order to solve the problem of road traffic safety, efficiency, environmental protection involving state acquisition, data communication A large class of technologies in different fields such as data processing, data processing and applications.
车联网主要设备包括车载设备和路侧设备，车载设备和路侧设备采用无线通信方式交互数据。目前还没有面向车联网的路侧设备的统一标准，处于研究和开发阶段。现有路侧设备的通信集成度和应用集成度不高。The main equipment of the Internet of Vehicles includes vehicle-mounted equipment and roadside equipment, and the vehicle-mounted equipment and roadside equipment use wireless communication to exchange data. At present, there is no unified standard for roadside equipment for the Internet of Vehicles, which is still in the research and development stage. The communication integration and application integration of existing roadside equipment are not high.
因此，需要提供一种面向车联网应用的交通状态采集的路侧设备。Therefore, it is necessary to provide a roadside device for collecting traffic status for Internet of Vehicles applications.
发明内容Contents of the invention
本发明的目的在于提供一种面向车联网应用的交通状态采集的路侧设备，通过串口接入现有的线圈传感器；通过ZigBee协议接入具有短程无线通信能力的地埋式或高架式交通流监测用的传感器，如地磁传感器；通过基于IEEE802.11p的车载无线通信标准(WAVE，WirelessAccessinVehicularEnvironment)与移动或静止车辆的车载设备进行数据交互；通过GPRS/GSM/3G/4G或者Ethernet网络等有线和无线通信方式与其他路侧设备或交通管理中心进行数据交互。The purpose of the present invention is to provide a roadside device for traffic state collection oriented to the application of the Internet of Vehicles, which is connected to the existing coil sensor through the serial port; connected to the buried or elevated traffic flow with short-range wireless communication capabilities through the ZigBee protocol Sensors for monitoring, such as geomagnetic sensors; data interaction with vehicle-mounted equipment of moving or stationary vehicles through the IEEE802.11p-based vehicle wireless communication standard (WAVE, Wireless Access in Vehicular Environment); Data exchange with other roadside equipment or traffic management center by means of wireless communication.
为达到上述目的，本发明采用下述技术方案：To achieve the above object, the present invention adopts the following technical solutions:
一种面向车联网应用的交通状态采集的路侧设备，该路侧设备包括：主控模块、DSRC控制模块、数据处理与存储模块、人机接口模块、同级交互控制模块和上级交互控制模块；A roadside device for traffic state collection oriented to the application of the Internet of Vehicles, the roadside device includes: a main control module, a DSRC control module, a data processing and storage module, a human-machine interface module, a peer interaction control module and a superior interaction control module ;
主控模块，根据人机接口模块、同级交互控制模块和/或上级交互控制模块发送的内部工作指令、同级工作指令和/或上级工作指令控制设备中其他各模块的工作，接收和/或转发交通状态数据；The main control module controls the work of other modules in the device according to the internal work instructions sent by the man-machine interface module, the interactive control module at the same level and/or the interactive control module at the upper level, the work order at the same level and/or the work order at the upper level, and receives and/or or forward traffic status data;
DSRC控制模块，在主控制模块的交互指令的控制下与移动车辆的车载设备进行数据交互；接收车载设备的车辆状态数据并转发到主控模块中，并向车载设备转发来自主控模块的交通状态数据；The DSRC control module performs data interaction with the on-board equipment of the mobile vehicle under the control of the interactive command of the main control module; receives the vehicle status data of the on-board equipment and forwards it to the main control module, and forwards the traffic data from the main control module to the on-board equipment status data;
同级交互控制模块，在主控制模块的交互指令的控制下与其他路侧设备进行数据交互，接收其他路侧设备的交通状态数据和/或同级工作指令并转发到主控模块中，并向其他路侧设备发送来自主控模块的交通状态数据和/或同级工作指令；The interactive control module at the same level performs data interaction with other roadside equipment under the control of the interactive command of the main control module, receives the traffic status data and/or work instructions of the same level of other roadside equipment and forwards them to the main control module, and Send traffic status data from the main control module and/or work instructions at the same level to other roadside equipment;
上级交互控制模块，在主控制模块的交互指令的控制下与交管中心服务器进行数据交互，接收交管中心服务器发送的交通状态数据和/或上级工作指令并转发到主控模块中；并接收主控模块转发的交通状态数据，转发到交管中心服务器；The upper-level interactive control module, under the control of the interactive command of the main control module, performs data interaction with the traffic management center server, receives the traffic status data and/or upper-level work instructions sent by the traffic management center server and forwards them to the main control module; and receives the main control The traffic status data forwarded by the module is forwarded to the traffic management center server;
数据处理与存储模块，根据主控模块发送的数据处理指令和/或存储指令对主控模块转发的交通状态数据进行数据处理和/或存储；The data processing and storage module performs data processing and/or storage on the traffic state data forwarded by the main control module according to the data processing instruction and/or storage instruction sent by the main control module;
人机接口模块，接收交通管理人员的内部工作指令和调试指令并转发到主控模块中，显示指令执行结果。The man-machine interface module receives the internal work instructions and debugging instructions of the traffic management personnel and forwards them to the main control module, and displays the execution results of the instructions.
优选地，所述DSRC控制模块通过基于IEEE802.11p的WAVE标准与车辆进行数据交互。Preferably, the DSRC control module performs data interaction with the vehicle through the WAVE standard based on IEEE802.11p.
优选地，数据处理与存储模块进行的数据处理包括初始数据处理、奇异点剥离、数据特征提取、移动车辆状态分析和路侧交通信息融合分析、路侧交通流参数提取、路侧交通状态参数获取、路侧交通状态判别、路侧交通状态预测等。Preferably, the data processing performed by the data processing and storage module includes initial data processing, singular point stripping, data feature extraction, moving vehicle state analysis and roadside traffic information fusion analysis, roadside traffic flow parameter extraction, roadside traffic state parameter acquisition , roadside traffic state discrimination, roadside traffic state prediction, etc.
优选地，该设备还包括：Preferably, the device also includes:
串口控制模块，在主控制模块的采集指令的控制下采集线圈传感器数据并转发到主控模块中。The serial port control module collects coil sensor data under the control of the collection command of the main control module and forwards it to the main control module.
优选地，该设备还包括：Preferably, the device also includes:
ZigBee控制模块，适应短程低功耗无线传输模块的控制，在主控制模块的采集指令的控制下基于IEEE802.15.4协议采集路侧无线传感器数据并转发到主控模块中。The ZigBee control module is adapted to the control of the short-range low-power wireless transmission module. Under the control of the acquisition command of the main control module, it collects roadside wireless sensor data based on the IEEE802.15.4 protocol and forwards it to the main control module.
优选地，该设备还包括：Preferably, the device also includes:
传感器输入控制模块，设置模拟量、数字量和脉冲量传感器输出对应的信号调理电路，在主控制模块的采集指令的控制下采集模拟量、数字量和脉冲量传感器数据并转发到主控模块中The sensor input control module sets the signal conditioning circuit corresponding to the output of analog, digital and pulse sensors, collects analog, digital and pulse sensor data under the control of the acquisition command of the main control module and forwards them to the main control module
本发明的有益效果如下：The beneficial effects of the present invention are as follows:
(1)本发明所述技术方案覆盖目前路侧信号采集的主要数据传输类型，包括串口、Ethernet、GPRS、3G/4G、DSRC和ZigBee等。覆盖了目前交通管理和信息采集的所有通信类型。(1) The technical solution of the present invention covers the main data transmission types of current roadside signal collection, including serial port, Ethernet, GPRS, 3G/4G, DSRC and ZigBee. Covers all communication types for current traffic management and information collection.
(2)本发明所述技术方案适应车联网不同应用的无线传输，在车联网中路侧设备或移动车辆(汽车)间进行数据通信，采用基于IEEE802.11p的WAVE标准。这些工作由下级交互控制模块承担。该模块可以独立工作，也可以与其他模块集成工作，覆盖车联网中车路通信的主要应用。(2) The technical solution of the present invention is suitable for wireless transmission of different applications of the Internet of Vehicles, and performs data communication between roadside equipment or mobile vehicles (automobiles) in the Internet of Vehicles, and adopts the WAVE standard based on IEEE802.11p. These tasks are undertaken by the lower-level interactive control module. This module can work independently or integrated with other modules, covering the main applications of vehicle-road communication in the Internet of Vehicles.
(3)本发明所述技术方案具有在线融合、分析、处理的功能，本发明所述技术方案设置了数据处理与存储模块，能够在线融合多源异构传感器信息、在线特征提取、在线分析与计算，能够在实时性条件下实现复杂的融合、分析算法。可以获得全面的移动车辆状态和路侧交通信息、路侧交通流参数、路侧交通状态参数、路侧交通状态判别结果、路侧交通状态预测结果等信息。(3) The technical solution of the present invention has the functions of online fusion, analysis, and processing. The technical solution of the present invention is provided with a data processing and storage module, which can online integrate multi-source heterogeneous sensor information, online feature extraction, online analysis and Computing can realize complex fusion and analysis algorithms under real-time conditions. It can obtain comprehensive moving vehicle status and roadside traffic information, roadside traffic flow parameters, roadside traffic state parameters, roadside traffic state discrimination results, roadside traffic state prediction results and other information.
(4)本发明所述技术方案能够实现附近路侧设备组网，并于交管部门进行数据交互，路侧设备可以通过合适的通信方式与其他路侧设备组网和数据交互，还可以与上级交管部门进行数据交互。(4) The technical scheme of the present invention can realize the networking of nearby roadside equipment, and carry out data interaction with the traffic control department. The roadside equipment can form a network and data interaction with other roadside equipment through a suitable communication method, and can also communicate with the superior The traffic management department conducts data exchange.
附图说明Description of drawings
下面结合附图对本发明的具体实施方式作进一步详细的说明。The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
图1示出面向车联网应用的交通状态采集的路侧设备的结构示意图。Fig. 1 shows a schematic structural diagram of a roadside device for traffic state collection for Internet of Vehicles applications.
具体实施方式detailed description
为了更清楚地说明本发明，下面结合优选实施例和附图对本发明做进一步的说明。附图中相似的部件以相同的附图标记进行表示。本领域技术人员应当理解，下面所具体描述的内容是说明性的而非限制性的，不应以此限制本发明的保护范围。In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.
如图1所示，本实施例提供的面向车联网应用的交通状态采集的路侧设备包括：主控模块、下级交互控制模块、数据处理与存储模块、人机接口模块、同级交互控制模块和上级交互控制模块；As shown in Figure 1, the roadside equipment for traffic state collection oriented to Internet of Vehicles applications provided by this embodiment includes: a main control module, a lower-level interactive control module, a data processing and storage module, a human-machine interface module, and a peer interactive control module Interact with the superior control module;
主控模块，根据人机接口模块、同级交互控制模块和/或上级交互控制模块发送的内部工作指令、同级工作指令和/或上级工作指令控制设备中其他各个模块的工作，接收和/或转发交通状态数据，管理并调度装置的资源，根据人机接口模块的输入确定工作流程；根据同级交互控制模块和上级交互控制模块的指令解析结果进行确定工作方案；完成与DSRC控制模块进行交互采集移动车辆状态数据；The main control module controls the work of other modules in the device according to the internal work instructions sent by the man-machine interface module, the interactive control module at the same level and/or the interactive control module at the upper level, the work instructions at the same level and/or the work instructions at the upper level, and receives and/or Or forward traffic status data, manage and dispatch device resources, and determine the work flow according to the input of the human-machine interface module; determine the work plan according to the instruction analysis results of the interactive control module at the same level and the interactive control module at the upper level; complete the communication with the DSRC control module Interactive collection of mobile vehicle status data;
DSRC控制模块，在主控制模块的交互指令的控制下与移动车辆进行数据交互；根据接收移动车辆的车辆状态数据的优先级申请与主控模块进行数据交互，报告紧急情况。DSRC控制模块，以适应高速移动环境的短程无线传输模块的控制，通过基于IEEE802.11p的WAVE标准或其他能实现高速移动环境下数据通信的载体与车辆进行数据交互。该模块接收车载设备的车辆状态数据，并将车载设备的车辆状态数据转发到主控模块中；并向车载设备转发来自主控模块的交通状态数据。The DSRC control module performs data interaction with the mobile vehicle under the control of the interaction command of the main control module; it performs data interaction with the main control module according to the priority application for receiving the vehicle status data of the mobile vehicle, and reports an emergency. The DSRC control module is adapted to the control of the short-range wireless transmission module in the high-speed mobile environment, and performs data interaction with the vehicle through the WAVE standard based on IEEE802.11p or other carriers that can realize data communication in the high-speed mobile environment. The module receives the vehicle state data of the vehicle equipment, and forwards the vehicle state data of the vehicle equipment to the main control module; and forwards the traffic state data from the main control module to the vehicle equipment.
同级交互控制模块，在主控制模块的交互指令的控制下与其他路侧设备进行数据交互，采用GPRS、3G/4G或Ethernet网进行通信，通信的范围主要是附近的其他路侧设备。该模块接收其他路侧设备的交通状态数据和/或同级工作指令，并将其他路侧设备的交通状态数据和/或同级工作指令转发到主控模块中；并向其他路侧设备发送来自主控模块的交通状态数据和/或同级工作指令。The interactive control module at the same level performs data interaction with other roadside equipment under the control of the interactive command of the main control module, and uses GPRS, 3G/4G or Ethernet network for communication. The communication range is mainly other nearby roadside equipment. This module receives the traffic status data and/or work orders of the same level of other roadside equipment, and forwards the traffic status data and/or work orders of the same level of other roadside equipment to the main control module; and sends them to other roadside equipment Traffic status data and/or peer work orders from the master control module.
上级交互控制模块，在主控制模块的交互指令的控制下与交管中心服务器间数据交互，采用Ethernet网进行通信。该模块接收上级(交管中心服务器)发送的数据和/或上级工作指令，并将上级(交管中心服务器)发送的数据和/或上级工作指令转发到主控模块中；并接收主控模块转发的交通状态数据，经过Ethernet网发送到上级(交管中心服务器)。The superior interactive control module, under the control of the interactive command of the main control module, exchanges data with the server of the traffic management center, and uses the Ethernet network for communication. This module receives the data and/or the superior work order sent by the superior (traffic management center server), and forwards the data and/or superior work order sent by the superior (traffic management center server) to the main control module; and receives the data forwarded by the main control module The traffic status data is sent to the superior (traffic management center server) through the Ethernet network.
数据处理与存储模块，根据主控模块发送的数据处理指令对主控模块转发的交通状态数据进行数据处理，数据处理包括初始数据处理、奇异点剥离、数据特征提取、移动车辆状态分析和路侧交通信息融合分析、路侧交通流参数提取、路侧交通状态参数获取、路侧交通状态判别、路侧交通状态预测等；根据主控模块发送的存储指令对主控模块转发的交通状态数据进行存储。The data processing and storage module performs data processing on the traffic state data forwarded by the main control module according to the data processing instructions sent by the main control module. Data processing includes initial data processing, singular point stripping, data feature extraction, moving vehicle state analysis and roadside Traffic information fusion analysis, roadside traffic flow parameter extraction, roadside traffic state parameter acquisition, roadside traffic state discrimination, roadside traffic state prediction, etc.; according to the storage instructions sent by the main control module, the traffic state data forwarded by the main control module is processed storage.
人机接口模块，接收交通管理人员的内部工作指令和调试指令，并将内部工作指令和调试指令转发到主控模块中；将相关结果显示或通过合适传输方式传输。The man-machine interface module receives internal work instructions and debugging instructions from traffic management personnel, and forwards the internal work instructions and debugging instructions to the main control module; displays relevant results or transmits them through appropriate transmission methods.
其中in
该设备还包括：The device also includes:
串口控制模块，采用RS232或RS485方式，用于对路侧设备的调试、软件升级等工作；或者在主控制模块的采集指令的控制下与线圈传感器的控制接口进行数据交互，采集线圈传感器数据并将线圈传感器数据转发到主控模块中。The serial port control module adopts RS232 or RS485 mode, which is used for debugging and software upgrading of roadside equipment; or performs data interaction with the control interface of the coil sensor under the control of the collection command of the main control module, collects the data of the coil sensor and Forward the coil sensor data to the main control module.
ZigBee控制模块，适应短程低功耗无线传输模块的控制，在主控制模块的采集指令的控制下基于IEEE802.15.4协议采集路侧无线传感器数据，并将路侧无线传感器数据转发到主控模块中。The ZigBee control module is adapted to the control of the short-range low-power wireless transmission module. Under the control of the acquisition command of the main control module, it collects roadside wireless sensor data based on the IEEE802.15.4 protocol, and forwards the roadside wireless sensor data to the main control module. .
传感器输入控制模块，该模块设置三类传感器输出对应的信号调理电路，即模拟量、数字量和脉冲量。该模块在主控制模块的采集指令的控制下将某些在总线以外的关键路侧传感器(模拟量、数字量和脉冲量传感器)的传感器数据，并将采集到的传感器数据转发到主控模块中，以便监测关键的物理量。该模块为可选择模块。Sensor input control module, this module sets the signal conditioning circuit corresponding to the output of three types of sensors, namely analog quantity, digital quantity and pulse quantity. Under the control of the acquisition command of the main control module, the module will transfer the sensor data of some key roadside sensors (analog, digital and pulse sensors) outside the bus, and forward the collected sensor data to the main control module in order to monitor key physical quantities. This module is an optional module.
主控模块，还与ZigBee控制模块进行数据交互采集路侧无线传感器数据、与传感器输入控制模型进行数据交互采集模拟量、数字量和脉冲量传感器数据、与串口控制模块进行数据交互采集线圈传感器数据。The main control module also performs data interaction with the ZigBee control module to collect roadside wireless sensor data, performs data interaction with the sensor input control model to collect analog, digital and pulse sensor data, and performs data interaction with the serial port control module to collect coil sensor data .
交通状态数据包括车辆状态数据和交通流数据，交通流数据包括路侧交通信息、线圈传感器数据，路侧无线传感器数据，模拟量、数字量和脉冲量传感器的数据等。Traffic status data includes vehicle status data and traffic flow data, traffic flow data includes roadside traffic information, coil sensor data, roadside wireless sensor data, analog, digital and pulse sensor data, etc.
电源与辅助模块，将地面电源变换为设备中各个模块需要的电压等级，进行稳流设计，保证电源的功率输出，进行电磁兼容设计，保证路侧设备在各种环境下稳定正常工作。The power supply and auxiliary module convert the ground power supply to the voltage level required by each module in the equipment, carry out steady current design to ensure the power output of the power supply, and carry out electromagnetic compatibility design to ensure the stable and normal operation of roadside equipment in various environments.
本实施例通过WAVE标准与车辆的车载设备进行数据交互，直接得到车辆状态或交通流数据；通过ZigBee与路侧无线传感器进行数据通信；通过有线或无线方式与附近路侧设备进行组网；通过串口与线圈传感器进行数据采集。本实施例提供的路侧设备覆盖了路侧绝大部分的传感器类型和传输方式。This embodiment carries out data interaction with the on-board equipment of the vehicle through the WAVE standard, and directly obtains the vehicle state or traffic flow data; carries out data communication with the roadside wireless sensor through ZigBee; carries out networking with nearby roadside equipment through wired or wireless mode; through Serial port and coil sensor for data acquisition. The roadside equipment provided in this embodiment covers most types and transmission modes of roadside sensors.
显然，本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定，对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动，这里无法对所有的实施方式予以穷举，凡是属于本发明的技术方案所引伸出的显而易见的变化或变动仍处于本发明的保护范围之列。Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those of ordinary skill in the art can also make It is impossible to exhaustively list all the implementation modes here, and any obvious changes or changes derived from the technical solutions of the present invention are still within the scope of protection of the present invention.
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