WO2018086156A1 - Multifunctional vehicle node and vehicle network constructed using same - Google Patents
Multifunctional vehicle node and vehicle network constructed using same Download PDFInfo
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- WO2018086156A1 WO2018086156A1 PCT/CN2016/106899 CN2016106899W WO2018086156A1 WO 2018086156 A1 WO2018086156 A1 WO 2018086156A1 CN 2016106899 W CN2016106899 W CN 2016106899W WO 2018086156 A1 WO2018086156 A1 WO 2018086156A1
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- the present invention relates to the field of in-vehicle monitoring and communication, and more particularly to a multifunctional in-vehicle node and an in-vehicle network constructed using an in-vehicle node.
- the sensor module and the GPS module are respectively used for sensing the vehicle interior environment information and the vehicle location information, and both of them are bidirectionally connected with the MCU module, and the MCU module wakes up the sensor module and the GPS module and configures related parameters, and the sensor module and the GPS module will The sensing information is transmitted to the MCU module;
- FIG. 4 is a schematic structural diagram of an RFID module of the in-vehicle node shown in FIG. 1;
- FIG. 6 is a schematic structural diagram of an in-vehicle network constructed by using an in-vehicle node according to the present invention.
- the GPS module U03 is bidirectionally connected with the MCU module U04, the MCU module U04 wakes up the GPS module U03 and configures relevant parameters; the GPS module U03 is used to receive the GPS position information of the monitored vehicle and transmit the information to the MCU module U04.
- the MCU module U04 is respectively connected to the RFID module U05 and the Bluetooth module U06, and the MCU module U04 wakes up the RFID module U05 and the Bluetooth module U06 and configures related parameters, and transmits the received GPS position information and the vehicle internal environment information to the RFID module U05.
- the Bluetooth module U06 and wirelessly communicate with external devices through the EPC protocol and the Bluetooth protocol, respectively.
- the GPS module U03 in the in-vehicle node U0 includes a GPS chip U031 and a GPS antenna UO32.
- the GPS antenna U032 operates at a frequency of 1575 MHz.
- the GPS chip U031 of the present invention uses a UBLOX NEO-6M chip and is bidirectionally connected to the MCU module.
- the TCP/IP packet is transmitted to the server U6 via the Internet and stored in the database U7.
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Abstract
A multifunctional vehicle node and a vehicle network constructed using the same. The vehicle node is for collecting position information of a monitored vehicle and internal environment information of the vehicle. The vehicle node comprises a power module, a sensor module, a GPS module, an MCU module, an RFID module and a Bluetooth module. The sensor module and the GPS module are for sensing vehicle environment information and vehicle position information. The vehicle network comprises the vehicle node, a GPS satellite, an RFID reader, a gateway, a smart phone, the Internet, a server and a database. The vehicle node separates sensed information into two paths. The sensed information transmitted by one of the paths passes through the RFID reader, the gateway and the Internet to the server and is stored in the database; the sensed information transmitted by the other path passes through the smart phone and the Internet to the server and is stored in the database. The present invention provides functions of GPS positioning, vehicle environment sensing, positioning of a vehicle in an underground garage, as well as antitheft and ETC functions.
Description
本发明涉及车载监测和通信领域，更具体的说是涉及一种多功能的车载节点及使用车载节点构建的车载网络。The present invention relates to the field of in-vehicle monitoring and communication, and more particularly to a multifunctional in-vehicle node and an in-vehicle network constructed using an in-vehicle node.
随着经济社会发展，人民生活水平提高，到2015年底，我国的汽车保有量达到1.72亿辆，对智能车载节点的需求也越来越强烈。申请号为201310024322.5，公开号为103944948A《对车载网络进行配置的方法和智能车载终端》发明了一种车载网络终端，但是该终端仅仅是一个通信装置，可以实现不同车载终端之间的通信。申请号为201510023930.3，公开号为104601701《车载网络设备和车载网络实现方法》发明了一种车载网络设备用于接收移动网络信号，并将移动网络信号转换为WIFI信号，以提供无线网络热点服务。申请号为201410709223.5，公开号为104506207A《一种车载网络通信设备》发明了一种车载网络通信设备，具有WIFI热点功能和4G上网功能，能够连接4G网络，并将4G信号通过WIFI热点分享给车内用户。With the economic and social development, the people's living standards have improved. By the end of 2015, China's car ownership has reached 172 million, and the demand for intelligent vehicle-mounted nodes has become stronger and stronger. The application number is 201310024322.5, the publication number is 103944948A, the method for configuring the in-vehicle network, and the intelligent vehicle terminal. Invented an in-vehicle network terminal, but the terminal is only a communication device, and communication between different in-vehicle terminals can be realized. The application number is 201510023930.3, and the publication number is 104601701 "In-vehicle network device and vehicle network implementation method". An in-vehicle network device is invented for receiving a mobile network signal and converting the mobile network signal into a WIFI signal to provide a wireless network hotspot service. The application number is 201410709223.5, the publication number is 104506207A, "An In-vehicle Network Communication Device", which invents an in-vehicle network communication device with WIFI hotspot function and 4G Internet access function, which can connect 4G network and share 4G signals to the car through WIFI hotspots. Internal user.
上述车载终端都没有实现对车载内部环境的实时监测。其次GPS技术是目前主流的汽车定位方式，但当汽车在地下车库中，GPS信号无法接收时，汽车的定位和防盗也成为一个难题。None of the above-mentioned vehicle-mounted terminals realize real-time monitoring of the vehicle interior environment. Secondly, GPS technology is currently the mainstream car positioning method, but when the car is in the underground garage, the GPS signal can not be received, the positioning and anti-theft of the car has become a problem.
发明内容Summary of the invention
本发明所要解决的问题是，克服上述背景技术的不足，提供一种多功能的车载节点及使用车载节点构建的车载网络。The problem to be solved by the present invention is to overcome the deficiencies of the above background art, and to provide a multifunctional vehicle-mounted node and an in-vehicle network constructed using the vehicle-mounted node.
本发明解决其技术问题采取的技术方案是：
The technical solution adopted by the present invention to solve the technical problems thereof is:
一种多功能的车载节点，包括电源模块、传感器模块、GPS模块、MCU模块、RFID模块和蓝牙模块。A multifunctional vehicle-mounted node includes a power module, a sensor module, a GPS module, an MCU module, an RFID module, and a Bluetooth module.
所述电源模块可以采用锂电池或车载电源，电源模块用于给传感器模块、GPS模块、MCU模块、RFID模块和蓝牙模块提供能量；The power module may be a lithium battery or a vehicle power supply, and the power module is used to provide energy to the sensor module, the GPS module, the MCU module, the RFID module, and the Bluetooth module;
所述传感器模块和GPS模块分别用于感知车载内部环境信息和车辆位置信息，它们都与MCU模块双向连接，MCU模块对传感器模块和GPS模块进行唤醒操作并配置相关参数，传感器模块和GPS模块将感知信息传送给MCU模块；The sensor module and the GPS module are respectively used for sensing the vehicle interior environment information and the vehicle location information, and both of them are bidirectionally connected with the MCU module, and the MCU module wakes up the sensor module and the GPS module and configures related parameters, and the sensor module and the GPS module will The sensing information is transmitted to the MCU module;
所述MCU模块分别与RFID模块和蓝牙模块相连，MCU模块对RFID模块和蓝牙模块进行唤醒和相关参数配置，并将接收到的车辆位置信息和车载内部环境信息传送到RFID模块和蓝牙模块；The MCU module is respectively connected to the RFID module and the Bluetooth module, and the MCU module wakes up the RFID module and the Bluetooth module and configures related parameters, and transmits the received vehicle location information and the vehicle internal environment information to the RFID module and the Bluetooth module;
所述RFID模块将MCU模块传送的数据信息打包成符合EPC协议的EPC数据包，并通过EPC协议与RFID阅读器无线通信；The RFID module packages the data information transmitted by the MCU module into an EPC data packet conforming to the EPC protocol, and wirelessly communicates with the RFID reader through the EPC protocol;
所述蓝牙模块将MCU模块传送的数据信息打包成符合蓝牙协议的IEEE 802.15.1数据包，通过IEEE 802.15.1协议与智能手机实现信息交互。The Bluetooth module packages the data information transmitted by the MCU module into an IEEE 802.15.1 data packet conforming to the Bluetooth protocol, and implements information interaction with the smart phone through the IEEE 802.15.1 protocol.
进一步，所述车载节点中的传感器模块包括温湿度传感器、3轴加速度传感器和CO传感器。Further, the sensor module in the in-vehicle node includes a temperature and humidity sensor, a 3-axis acceleration sensor, and a CO sensor.
所述温湿度传感器用于感知车载内部温度信息和湿度信息；The temperature and humidity sensor is configured to sense vehicle internal temperature information and humidity information;
所述3轴加速度传感器用于感知车辆的颠簸震动信息；The 3-axis acceleration sensor is used to sense bumpy vibration information of the vehicle;
所述CO传感器用于感知车载内部空气中CO的浓度信息；The CO sensor is configured to sense concentration information of CO in the vehicle interior air;
不失一般性地，本发明中温湿度传感器和3轴加速度传感器分别采用TI HDC1000和ADXL346芯片，它们的通信方式为I2C总线，因此温湿度传感器和3轴加速度传感器均通过I2C总线与MCU模块双向连接，MCU模块对温湿度传感器和3轴加速度传感器进行唤醒操作并配置相关参数，温湿度传感器和3轴加速度传感器把感知的信息传送至MCU模块；CO传感器采用FIGARO TGS2442型号的传感器，该传感器为模拟传感器,MCU模块通过GPIO口对其进行唤醒和参数配置，其感知CO浓度信息后，将数据送至MCU模块中的ADC进行模拟-数字转
换。Without loss of generality, the temperature and humidity sensor and the 3-axis acceleration sensor of the present invention respectively use TI HDC1000 and ADXL346 chips, and their communication mode is I 2 C bus, so the temperature and humidity sensor and the 3-axis acceleration sensor pass through the I 2 C bus. The MCU module is bidirectionally connected. The MCU module wakes up the temperature and humidity sensor and the 3-axis acceleration sensor and configures relevant parameters. The temperature and humidity sensor and the 3-axis acceleration sensor transmit the sensed information to the MCU module. The CO sensor uses the FIGARO TGS2442 model sensor. The sensor is an analog sensor. The MCU module wakes up and parameterizes it through the GPIO port. After sensing the CO concentration information, it sends the data to the ADC in the MCU module for analog-to-digital conversion.
进一步，所述车载节点中GPS模块包括GPS芯片和GPS天线。Further, the GPS module in the in-vehicle node includes a GPS chip and a GPS antenna.
所述GPS天线的工作频率为1575MHz；The operating frequency of the GPS antenna is 1575 MHz;
所述GPS芯片与MCU模块双向连接，不失一般性地，本发明中的GPS芯片采用UBLOX NEO-6M芯片。The GPS chip is bidirectionally connected to the MCU module, and the GPS chip of the present invention uses the UBLOX NEO-6M chip without loss of generality.
进一步，所述车载节点中RFID模块包括RFID芯片和RFID天线。所述RFID天线的工作频率为915MHz。不失一般性地，本发明中所述RFID芯片采用FUJITSU MB97R804A。Further, the RFID module in the in-vehicle node includes an RFID chip and an RFID antenna. The RFID antenna operates at a frequency of 915 MHz. Without loss of generality, the RFID chip described in the present invention employs FUJITSU MB97R804A.
进一步，所述车载节点中蓝牙模块包括蓝牙芯片和蓝牙天线。所述蓝牙天线的工作频率为2.4GHz。不失一般性地，本发明中所述蓝牙芯片采用NORDIC NRF51822。Further, the Bluetooth module in the in-vehicle node comprises a Bluetooth chip and a Bluetooth antenna. The Bluetooth antenna operates at a frequency of 2.4 GHz. Without loss of generality, the Bluetooth chip described in the present invention uses NORDIC NRF51822.
一种使用如前所述车载节点构建的车载网络，包括车载节点、GPS卫星、RFID阅读器、网关、智能手机、互联网、服务器和数据库。An in-vehicle network constructed using an on-board node as described above, including an in-vehicle node, a GPS satellite, an RFID reader, a gateway, a smart phone, the Internet, a server, and a database.
所述RFID阅读器和智能手机均与车载节点双向连接；所述车载节点用于完成被监测车辆的位置信息和车载内部环境信息的采集，并将信息分为两路，第一路打包为符合RFID通信协议的EPC数据包，传送至RFID阅读器；第二路打包为符合蓝牙协议的IEEE 802.15.1数据包，传送至智能手机；The RFID reader and the smart phone are both connected to the in-vehicle node in two directions; the in-vehicle node is configured to complete the collection of the position information of the monitored vehicle and the in-vehicle internal environment information, and divide the information into two paths, and the first road is packaged to meet the requirements. The EPC data packet of the RFID communication protocol is transmitted to the RFID reader; the second channel is packaged into an IEEE 802.15.1 data packet conforming to the Bluetooth protocol, and transmitted to the smart phone;
所述RFID阅读器与网关双向连接，RFID阅读器将接收到的EPC数据包传送至网关；The RFID reader is bidirectionally connected to the gateway, and the RFID reader transmits the received EPC data packet to the gateway;
所述网关与互联网通过以太网通信方式相连，并将接收到的EPC数据包按照TCP/IP相关协议的规定，重新打包成符合以太网标准的数据格式；The gateway is connected to the Internet by means of Ethernet communication, and the received EPC data packet is repackaged into a data format conforming to the Ethernet standard according to the provisions of the TCP/IP related protocol;
所述智能手机与互联网通过3G/4G网络相连，并将IEEE 802.15.1数据包重新打包为符合TCP/IP协议的数据包；The smart phone and the Internet are connected through a 3G/4G network, and the IEEE 802.15.1 data packet is repackaged into a data packet conforming to the TCP/IP protocol;
TCP/IP数据包通过互联网传送到服务器，并被存储到数据库中；
TCP/IP packets are transmitted to the server over the Internet and stored in the database;
相反，智能手机可以通过互联网和服务器查询数据库中的历史数据，并根据需要对车载节点发送命令；服务器也可以通过互联网、网关和RFID阅读器对车载节点发送命令。Instead, the smartphone can query the historical data in the database through the Internet and the server, and send commands to the in-vehicle node as needed; the server can also send commands to the in-vehicle node through the Internet, the gateway, and the RFID reader.
应用于地下停车场时，RFID阅读器可固定放置在地下停车场中。When applied to an underground parking lot, the RFID reader can be placed in an underground parking lot.
本发明之多功能的车载节点具有功能多的特点，可以满足车辆的多种需要，具体功能如下：The multifunctional vehicle-mounted node of the invention has the characteristics of multiple functions and can meet various needs of the vehicle. The specific functions are as follows:
(1)用于定位车辆实时GPS位置信息。(1) Used to locate real-time GPS position information of the vehicle.
(2)用于实时监测车载内部环境信息。(2) Used to monitor the internal environment information of the vehicle in real time.
(3)支持蓝牙和RFID两种通信方式。(3) Support Bluetooth and RFID communication methods.
(4)因为本发明之多功能的车载节点支持RFID通信方式，所以具有ETC(Electronic Toll Collection,不停车电子收费系统)终端的功能。(4) Since the multifunctional in-vehicle node of the present invention supports the RFID communication method, it has the function of an ETC (Electronic Toll Collection) terminal.
(5)在地下停车场中，GPS信号非常微弱，无法满足车辆定位的需求。RFID室内定位方法刚好可以做到室内的准确定位。本发明中的RFID模块可以实现车辆与固定放置在停车场中的RFID阅读器之间的通信，完成车辆在地下停车场中的定位，具有防盗功能。(5) In the underground parking lot, the GPS signal is very weak and cannot meet the needs of vehicle positioning. The RFID indoor positioning method can just achieve accurate indoor positioning. The RFID module of the present invention can realize communication between the vehicle and an RFID reader fixedly placed in the parking lot, complete positioning of the vehicle in the underground parking lot, and has an anti-theft function.
图1为本发明之多功能的车载节点的结构示意图；1 is a schematic structural view of a multi-function vehicle-mounted node according to the present invention;
图2为图1所示车载节点的传感器模块的结构示意图；2 is a schematic structural view of a sensor module of the in-vehicle node shown in FIG. 1;
图3为图1所示车载节点的GPS模块的结构示意图；3 is a schematic structural diagram of a GPS module of the in-vehicle node shown in FIG. 1;
图4为图1所示车载节点的RFID模块的结构示意图；4 is a schematic structural diagram of an RFID module of the in-vehicle node shown in FIG. 1;
图5为图1所示车载节点的蓝牙模块的结构示意图；5 is a schematic structural diagram of a Bluetooth module of the in-vehicle node shown in FIG. 1;
图6为本发明之使用车载节点构建的车载网络的结构示意图。FIG. 6 is a schematic structural diagram of an in-vehicle network constructed by using an in-vehicle node according to the present invention.
以下结合附图和实施例对本发明作进一步说明。The invention will be further described below in conjunction with the drawings and embodiments.
参照图1，本发明之多功能的车载节点U0包括电源模块U01、传感器模块U02、GPS模块U03、MCU模块U04、RFID模块UO5和蓝牙模块U06。Referring to FIG. 1, the multifunctional vehicle-mounted node U0 of the present invention includes a power module U01, a sensor module U02, a GPS module U03, an MCU module U04, an RFID module UO5, and a Bluetooth module U06.
电源模块U01给传感器模块U02、GPS模块U03、MCU模块U04、
RFID模块UO5和蓝牙模块U06提供能量。本发明中电源模块U01可以为锂电池或车载电源。The power module U01 is given to the sensor module U02, the GPS module U03, the MCU module U04,
The RFID module UO5 and the Bluetooth module U06 provide energy. In the present invention, the power module U01 can be a lithium battery or a vehicle power supply.
传感器模块U02与MCU模块U04双向连接，MCU模块U04对传感器模块U02进行唤醒操作，并配置相关参数；传感器模块U02用于监测车载内部环境信息，并将信息传输到MCU模块U04中。The sensor module U02 is bidirectionally connected with the MCU module U04, the MCU module U04 wakes up the sensor module U02, and configures relevant parameters; the sensor module U02 is used to monitor the internal environment information of the vehicle and transmit the information to the MCU module U04.
GPS模块U03与MCU模块U04双向连接，MCU模块U04对GPS模块U03进行唤醒操作，并配置相关参数；GPS模块U03用来接收被监测车辆的GPS位置信息，并将信息传输到MCU模块U04中。The GPS module U03 is bidirectionally connected with the MCU module U04, the MCU module U04 wakes up the GPS module U03 and configures relevant parameters; the GPS module U03 is used to receive the GPS position information of the monitored vehicle and transmit the information to the MCU module U04.
MCU模块U04分别与RFID模块U05和蓝牙模块U06相连，MCU模块U04对RFID模块U05和蓝牙模块U06进行唤醒和相关参数配置，并将接收到的GPS位置信息和车载内部环境信息传送到RFID模块U05和蓝牙模块U06中，并分别通过EPC协议和蓝牙协议与外部设备无线通信。The MCU module U04 is respectively connected to the RFID module U05 and the Bluetooth module U06, and the MCU module U04 wakes up the RFID module U05 and the Bluetooth module U06 and configures related parameters, and transmits the received GPS position information and the vehicle internal environment information to the RFID module U05. And the Bluetooth module U06, and wirelessly communicate with external devices through the EPC protocol and the Bluetooth protocol, respectively.
参照图2，车载节点U0中的传感器模块U02包括温湿度传感器U021、3轴加速度传感器U022和CO传感器U023。温湿度传感器U021用于感知车载内部的温度和湿度信息，3轴加速度传感器U022用于感知车辆的颠簸震动信息，CO传感器U023用于感知车载内部空气中CO的浓度信息。Referring to FIG. 2, the sensor module U02 in the in-vehicle node U0 includes a temperature and humidity sensor U021, a 3-axis acceleration sensor U022, and a CO sensor U023. The temperature and humidity sensor U021 is used to sense temperature and humidity information inside the vehicle, the 3-axis acceleration sensor U022 is used to sense the bump vibration information of the vehicle, and the CO sensor U023 is used to sense the concentration information of the CO in the vehicle interior air.
不失一般性地，本发明中温湿度传感器U021和3轴加速度传感器U022分别采用TI HDC1000和ADXL346芯片，它们的通信方式为I2C总线，因此温湿度传感器U021和3轴加速度传感器U022与MCU模块U04通过I2C总线双向连接，MCU模块U04对温湿度传感器U021和3轴加速度传感器U022进行唤醒操作并配置相关参数，温湿度传感器U021和3轴加速度传感器U022把感知的信息传送至MCU模块U04。Without loss of generality, the temperature and humidity sensor U021 and the 3-axis acceleration sensor U022 of the present invention respectively use TI HDC1000 and ADXL346 chips, and their communication mode is I 2 C bus, so the temperature and humidity sensor U021 and the 3-axis acceleration sensor U022 and MCU module U04 is bidirectionally connected through the I 2 C bus. The MCU module U04 wakes up the temperature and humidity sensor U021 and the 3-axis acceleration sensor U022 and configures relevant parameters. The temperature and humidity sensor U021 and the 3-axis acceleration sensor U022 transmit the sensed information to the MCU module U04. .
不失一般性地，本发明中CO传感器U023采用FIGARO TGS2442型号的传感器，该传感器为模拟传感器。因此MCU模块U04通过GPIO口对其进行唤醒和参数配置，其感知CO浓度信息后，将数据送至MCU模块U04中的ADC进行模拟-数字转换。
Without loss of generality, the CO sensor U023 of the present invention employs a sensor of the FIGARO TGS2442 model, which is an analog sensor. Therefore, the MCU module U04 wakes up and configures the parameters through the GPIO port. After sensing the CO concentration information, the data is sent to the ADC in the MCU module U04 for analog-to-digital conversion.
参照图3，车载节点U0中的GPS模块U03包括GPS芯片U031和GPS天线UO32。GPS天线U032的工作频率为1575MHz。不失一般性地，本发明中的GPS芯片U031采用UBLOX NEO-6M芯片，与MCU模块双向连接。Referring to FIG. 3, the GPS module U03 in the in-vehicle node U0 includes a GPS chip U031 and a GPS antenna UO32. The GPS antenna U032 operates at a frequency of 1575 MHz. Without loss of generality, the GPS chip U031 of the present invention uses a UBLOX NEO-6M chip and is bidirectionally connected to the MCU module.
参照图4，车载节点U0中的RFID模块U05包括RFID芯片U051和RFID天线UO52。RFID天线U052的工作频率为915MHz。不失一般性地，本发明中的RFID芯片采用FUJITSU MB97R804A。Referring to FIG. 4, the RFID module U05 in the in-vehicle node U0 includes an RFID chip U051 and an RFID antenna UO52. The RFID antenna U052 operates at 915 MHz. Without loss of generality, the RFID chip of the present invention employs FUJITSU MB97R804A.
参照图5，车载节点U0中的蓝牙模块U06包括蓝牙芯片U061和蓝牙天线UO62。蓝牙天线U062的工作频率为2.4GHz。不失一般性地，本发明中的蓝牙芯片采用NORDIC NRF51822。Referring to FIG. 5, the Bluetooth module U06 in the in-vehicle node U0 includes a Bluetooth chip U061 and a Bluetooth antenna UO62. The Bluetooth antenna U062 operates at 2.4 GHz. Without loss of generality, the Bluetooth chip of the present invention uses NORDIC NRF51822.
本发明之多功能的车载节点具有以下功能：The multifunctional vehicle-mounted node of the present invention has the following functions:
(1)因为节点上集成了GPS模块，该车载节点可以用于定位车辆实时GPS位置信息。(1) Since the GPS module is integrated on the node, the in-vehicle node can be used to locate the real-time GPS position information of the vehicle.
(2)因为节点上集成了多种传感器，该车载节点可以用于实时监测车载内部环境信息。(2) Because a variety of sensors are integrated on the node, the in-vehicle node can be used to monitor the internal environment information of the vehicle in real time.
(3)因为节点上集成了蓝牙模块和RFID模块，该车载节点支持蓝牙和RFID两种通信方式。(3) Because the Bluetooth module and the RFID module are integrated on the node, the vehicle node supports Bluetooth and RFID communication modes.
(4)因为节点上集成了RFID模块，该车载节点具有ETC(Electronic Toll Collection,不停车电子收费系统)终端的功能。(4) Since the RFID module is integrated on the node, the in-vehicle node has the function of an ETC (Electronic Toll Collection) terminal.
(5)在地下停车场中，GPS信号非常微弱，无法满足车辆定位的需求。RFID室内定位方法刚好可以做到室内的准确定位，本发明中的RFID模块可以实现车辆与固定放置在停车场中的RFID阅读器之间的通信，完成车辆在地下停车场中的定位，具有很好的防盗功能。(5) In the underground parking lot, the GPS signal is very weak and cannot meet the needs of vehicle positioning. The RFID indoor positioning method can just achieve accurate indoor positioning. The RFID module of the present invention can realize communication between the vehicle and the RFID reader fixedly placed in the parking lot, and complete the positioning of the vehicle in the underground parking lot, which has a very Good anti-theft function.
参照图6，本发明之使用如前所述车载节点构建的车载网络，包括车载节点U0、GPS卫星U1、RFID阅读器U2、网关U3、智能手机U4、互联网U5、服务器U6和数据库U7。Referring to FIG. 6, the in-vehicle network constructed by the in-vehicle node according to the present invention includes an in-vehicle node U0, a GPS satellite U1, an RFID reader U2, a gateway U3, a smart phone U4, an Internet U5, a server U6, and a database U7.
车载节点U0用于完成被监测车辆的位置信息和车载内部环境信息的采集，并将信息分为两路，第一路打包为符合RFID通信协议的EPC数据包，传送至RFID阅读器U2；第二路打包为符合蓝牙协议的
IEEE 802.15.1数据包，传送至智能手机U4。The vehicle node U0 is used to complete the collection of the position information of the monitored vehicle and the internal environment information of the vehicle, and divide the information into two paths, and the first road is packaged into an EPC data packet conforming to the RFID communication protocol, and transmitted to the RFID reader U2; Two-way packaged to comply with the Bluetooth protocol
The IEEE 802.15.1 packet is transmitted to the smartphone U4.
RFID阅读器U2与网关U3相连，EPC数据包传送至网关U3。网关U3与互联网U5通过以太网通信方式相连，并将接收到的EPC数据包重新按照TCP/IP相关协议的规定，重新打包成符合以太网标准的数据格式。The RFID reader U2 is connected to the gateway U3, and the EPC data packet is transmitted to the gateway U3. The gateway U3 and the Internet U5 are connected by Ethernet communication, and the received EPC data packet is repackaged into a data format conforming to the Ethernet standard according to the provisions of the TCP/IP related protocol.
智能手机U4与互联网U5通过3G/4G网络相连，并将IEEE 802.15.1数据包重新打包为符合TCP/IP协议的数据包。The smartphone U4 and the Internet U5 are connected through a 3G/4G network, and the IEEE 802.15.1 data packet is repackaged into a TCP/IP-compliant data packet.
TCP/IP数据包通过互联网传送到服务器U6，并被存储到数据库U7中。The TCP/IP packet is transmitted to the server U6 via the Internet and stored in the database U7.
相反，智能手机U4可以通过互联网U5和服务器U6查询数据库U7中的历史数据，并根据需要对车载节点U0发送命令；服务器U6也可以通过互联网U5、网关U3和RFID阅读器U2对车载节点发送命令。In contrast, the smartphone U4 can query the historical data in the database U7 through the Internet U5 and the server U6, and send commands to the in-vehicle node U0 as needed; the server U6 can also send commands to the in-vehicle node through the Internet U5, the gateway U3, and the RFID reader U2. .
本领域的技术人员可以对本发明进行各种修改和变型，倘若这些修改和变型在本发明权利要求及其等同技术的范围之内，则这些修改和变型也在本发明的保护范围之内。A person skilled in the art can make various modifications and variations to the present invention, and these modifications and variations are also within the scope of the present invention as long as they are within the scope of the present invention.
说明书中未详细描述的内容为本领域技术人员公知的现有技术。
The contents not described in detail in the specification are prior art known to those skilled in the art.
Claims (6)
- 一种多功能的车载节点，其特征在于，包括电源模块、传感器模块、GPS模块、MCU模块、RFID模块和蓝牙模块；A multifunctional vehicle-mounted node, comprising: a power module, a sensor module, a GPS module, an MCU module, an RFID module, and a Bluetooth module;所述电源模块采用锂电池或车载电源，电源模块用于给传感器模块、GPS模块、MCU模块、RFID模块和蓝牙模块提供能量；The power module uses a lithium battery or a vehicle power supply, and the power module is used to provide energy to the sensor module, the GPS module, the MCU module, the RFID module, and the Bluetooth module;所述传感器模块和GPS模块分别用于感知车载环境信息和车辆位置信息，它们都与MCU模块双向连接，MCU模块对传感器模块和GPS模块进行唤醒操作并配置相关参数，传感器模块和GPS模块将感知信息传送给MCU模块；The sensor module and the GPS module are respectively used for sensing vehicle environment information and vehicle location information, and both are bidirectionally connected with the MCU module, and the MCU module wakes up the sensor module and the GPS module and configures related parameters, and the sensor module and the GPS module will sense Information is transmitted to the MCU module;所述MCU模块分别与RFID模块和蓝牙模块相连，MCU模块对RFID模块和蓝牙模块进行唤醒和相关参数配置，并将接收到的车辆位置信息和车载内部环境信息传送到RFID模块和蓝牙模块；The MCU module is respectively connected to the RFID module and the Bluetooth module, and the MCU module wakes up the RFID module and the Bluetooth module and configures related parameters, and transmits the received vehicle location information and the vehicle internal environment information to the RFID module and the Bluetooth module;所述RFID模块将MCU模块传送的数据信息打包成符合EPC协议的EPC数据包，并通过EPC协议与RFID阅读器无线通信；The RFID module packages the data information transmitted by the MCU module into an EPC data packet conforming to the EPC protocol, and wirelessly communicates with the RFID reader through the EPC protocol;所述蓝牙模块将MCU模块传送的数据信息打包成符合蓝牙协议的IEEE 802.15.1数据包，通过IEEE 802.15.1协议与智能手机实现信息交互。The Bluetooth module packages the data information transmitted by the MCU module into an IEEE 802.15.1 data packet conforming to the Bluetooth protocol, and implements information interaction with the smart phone through the IEEE 802.15.1 protocol.
- 根据权利要求1所述的多功能的车载节点，其特征在于，传感器模块包括温湿度传感器、3轴加速度传感器和CO传感器；The multifunctional vehicle-mounted node according to claim 1, wherein the sensor module comprises a temperature and humidity sensor, a 3-axis acceleration sensor, and a CO sensor;所述温湿度传感器用于感知车载内部温度信息和湿度信息；The temperature and humidity sensor is configured to sense vehicle internal temperature information and humidity information;所述3轴加速度传感器用于感知车辆的颠簸震动信息；The 3-axis acceleration sensor is used to sense bumpy vibration information of the vehicle;所述CO传感器用于感知车载内部空气中CO的浓度信息。The CO sensor is used to sense the concentration information of CO in the vehicle interior air.
- 根据权利要求1所述的多功能的车载节点，其特征在于，GPS模块包括GPS芯片和GPS天线，所述GPS天线的工作频率为1575MHz；所述GPS芯片与MCU模块双向连接。 The multifunctional vehicle-mounted node according to claim 1, wherein the GPS module comprises a GPS chip and a GPS antenna, the GPS antenna operating at a frequency of 1575 MHz; and the GPS chip is bidirectionally connected to the MCU module.
- 根据权利要求1所述的多功能的车载节点，其特征在于，RFID模块包括RFID芯片和RFID天线，所述RFID天线的工作频率为915MHz。The multifunctional vehicle-mounted node according to claim 1, wherein the RFID module comprises an RFID chip and an RFID antenna, and the RFID antenna operates at a frequency of 915 MHz.
- 根据权利要求1所述的多功能的车载节点，其特征在于，蓝牙模块包括蓝牙芯片和蓝牙天线，所述蓝牙天线的工作频率为2.4GHz。The multifunctional vehicle-mounted node according to claim 1, wherein the Bluetooth module comprises a Bluetooth chip and a Bluetooth antenna, and the Bluetooth antenna operates at a frequency of 2.4 GHz.
- 一种使用如权利要求1-5任一项所述多功能的车载节点构建的车载网络，其特征在于，包括车载节点、GPS卫星、RFID阅读器、网关、智能手机、互联网、服务器和数据库；An in-vehicle network constructed using the multi-function vehicle-mounted node according to any one of claims 1 to 5, comprising: an in-vehicle node, a GPS satellite, an RFID reader, a gateway, a smart phone, an internet, a server, and a database;所述RFID阅读器和智能手机均与车载节点双向连接；所述车载节点用于完成被监测车辆的位置信息和车载内部环境信息的采集，并将信息分为两路，第一路打包为符合RFID通信协议的EPC数据包，传送至RFID阅读器；第二路打包为符合蓝牙协议的IEEE 802.15.1数据包，传送至智能手机；The RFID reader and the smart phone are both connected to the in-vehicle node in two directions; the in-vehicle node is configured to complete the collection of the position information of the monitored vehicle and the in-vehicle internal environment information, and divide the information into two paths, and the first road is packaged to meet the requirements. The EPC data packet of the RFID communication protocol is transmitted to the RFID reader; the second channel is packaged into an IEEE 802.15.1 data packet conforming to the Bluetooth protocol, and transmitted to the smart phone;所述RFID阅读器与网关双向连接，RFID阅读器将接收到的EPC数据包传送至网关；The RFID reader is bidirectionally connected to the gateway, and the RFID reader transmits the received EPC data packet to the gateway;所述网关与互联网通过以太网通信方式相连，并将接收到的EPC数据包按照TCP/IP相关协议的规定，重新打包成符合以太网标准的数据格式；TCP/IP数据包通过互联网传送到服务器，并被存储到数据库中；The gateway is connected to the Internet via Ethernet communication, and the received EPC data packet is repackaged into a data format conforming to the Ethernet standard according to the TCP/IP related protocol; the TCP/IP data packet is transmitted to the server through the Internet. And stored in the database;所述智能手机与互联网通过3G/4G网络相连，并将IEEE 802.15.1数据包重新打包为符合TCP/IP协议的数据包；TCP/IP数据包通过互联网传送到服务器，并被存储到数据库中；The smart phone and the Internet are connected through a 3G/4G network, and the IEEE 802.15.1 data packet is repackaged into a data packet conforming to the TCP/IP protocol; the TCP/IP data packet is transmitted to the server through the Internet and stored in the database. ;所述智能手机通过互联网和服务器查询数据库中的历史数据，并根据需要对车载节点发送命令；The smart phone queries historical data in the database through the Internet and the server, and sends a command to the in-vehicle node as needed;所述服务器通过互联网、网关和RFID阅读器对车载节点发送命令。 The server sends commands to the in-vehicle node via the Internet, a gateway, and an RFID reader.
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