CN114954575A - A vehicle-ground information transmission system and precise positioning method - Google Patents

A vehicle-ground information transmission system and precise positioning method Download PDF

Info

Publication number
CN114954575A
CN114954575A CN202210763209.8A CN202210763209A CN114954575A CN 114954575 A CN114954575 A CN 114954575A CN 202210763209 A CN202210763209 A CN 202210763209A CN 114954575 A CN114954575 A CN 114954575A
Authority
CN
China
Prior art keywords
information transmission
transmission unit
vehicle
ground
interface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202210763209.8A
Other languages
Chinese (zh)
Other versions
CN114954575B (en
Inventor
吴飞
雷杨
王洪军
商忠晟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanxi Runzefeng Technology Co ltd
Original Assignee
Ningbo Jijin Technology Development Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Jijin Technology Development Co ltd filed Critical Ningbo Jijin Technology Development Co ltd
Priority to CN202210763209.8A priority Critical patent/CN114954575B/en
Publication of CN114954575A publication Critical patent/CN114954575A/en
Application granted granted Critical
Publication of CN114954575B publication Critical patent/CN114954575B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/40—Handling position reports or trackside vehicle data
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/70—Details of trackside communication
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

本发明公开了一种车地信息传输系统及精确定位方法，包括：一体化车载读取器、定位器、固定信息传输单元和可变信息传输单元，所述一体化车载读取器安装在车体底部中央位置，所述定位器实时检测一体化车载读取器发出的无线能量信号强度，当检测到能量信号有效时输出列车到达信号至轨旁设备，所述固定信息传输单元和可变信息传输单元正常工作时不需要轨旁设备提供电源。该车地信息传输系统及精确定位方法，可为地面设备提供列车经过位置和停靠位置的准确信息，可为车载主机单元提供精确的列车定位信息，同时还可以通过无线方式传输地‑车信息，形成车载设备和地面设备之间的双向定位和信息交互，传递地面信号实时状态，提高了列控系统控制效率。

Figure 202210763209

The invention discloses a vehicle-ground information transmission system and a precise positioning method, comprising: an integrated vehicle-mounted reader, a locator, a fixed information transmission unit and a variable information transmission unit, wherein the integrated vehicle-mounted reader is installed on the vehicle The central position of the bottom of the body, the locator detects the strength of the wireless energy signal sent by the integrated on-board reader in real time, and outputs the train arrival signal to the trackside equipment when the energy signal is detected to be valid. The fixed information transmission unit and variable information The transmission unit does not require power from the trackside equipment for normal operation. The vehicle-ground information transmission system and the precise positioning method can provide ground equipment with accurate information of the train's passing position and parking position, and can provide the vehicle-mounted host unit with precise train positioning information, and can also transmit ground-vehicle information wirelessly. It forms two-way positioning and information exchange between on-board equipment and ground equipment, transmits the real-time status of ground signals, and improves the control efficiency of the train control system.

Figure 202210763209

Description

一种车地信息传输系统及精确定位方法A vehicle-ground information transmission system and precise positioning method

技术领域technical field

本发明涉及无线近场通信系统及精确定位方法技术领域，具体为一种车地信息传输系统及精确定位方法。The invention relates to the technical field of a wireless near field communication system and a precise positioning method, in particular to a vehicle-ground information transmission system and a precise positioning method.

背景技术Background technique

轨道交通中的列车运行位置经常是由欧标应答器传输系统、美标信标传输系统或者固定的轨道电路、计轴等设备通过地面发送位置信息或特定含义的信息对列车位置进行定位和信息传输；The running position of trains in rail transit is often transmitted by the European standard transponder transmission system, American standard beacon transmission system or fixed track circuit, axle counting and other equipment to locate and inform the train position by sending position information or information of specific meaning on the ground. transmission;

应答器传输系统和信标系统向车载设备提供位置信息，即列车可获取位置信息而地面设备不可获取列车行驶位置；轨道电路和计轴设备的定位信息只有地面设备可获取列车信息，列车并无法获取位置信息，并且定位不精确，上述定位都有一个共同特点都是通过传递的数据信息进行定位，并且都是单向定位。The transponder transmission system and the beacon system provide position information to the on-board equipment, that is, the train can obtain the position information, but the ground equipment cannot obtain the train running position; the positioning information of the track circuit and axle counting equipment can only be obtained by the ground equipment, but not the train. The location information is not accurate, and the positioning is not accurate. The above positioning has a common feature that the positioning is performed through the transmitted data information, and they are all one-way positioning.

所以需要针对上述问题进行改进，来满足市场需求。Therefore, it is necessary to improve the above problems to meet the market demand.

发明内容SUMMARY OF THE INVENTION

本发明的目的在于提供一种车地信息传输系统及精确定位方法，以解决上述背景技术中提出列车可获取位置信息而地面设备不可获取列车行驶位置；轨道电路和计轴设备的定位信息只有地面设备可获取列车信息，列车并无法获取位置信息，并且定位不精确，上述定位都有一个共同特点都是通过传递的数据信息进行定位，并且都是单向定位的问题。The purpose of the present invention is to provide a vehicle-ground information transmission system and a precise positioning method, so as to solve the problem in the above-mentioned background technology that the train can obtain the position information but the ground equipment cannot obtain the train running position; the positioning information of the track circuit and the axle counting equipment is only the ground The equipment can obtain the train information, but the train cannot obtain the position information, and the positioning is not accurate. The above positioning has a common feature that the positioning is carried out through the transmitted data information, and it is a one-way positioning problem.

为实现上述目的，本发明提供如下技术方案：一种车地信息传输系统及精确定位方法，包括：一体化车载读取器、定位器、固定信息传输单元和可变信息传输单元，所述一体化车载读取器安装在车车体底部中央位置，所述定位器实时检测一体化车载读取器发出的无线能量信号强度，当检测到能量信号有效时输出列车到达信号至轨旁设备，所述固定信息传输单元和可变信息传输单元正常工作时不需要轨旁设备提供电源，固定信息传输单元和可变信息传输单元的工作电源由一体化车载读取器以无线的方式提供；In order to achieve the above purpose, the present invention provides the following technical solutions: a vehicle-ground information transmission system and a precise positioning method, comprising: an integrated vehicle-mounted reader, a locator, a fixed information transmission unit and a variable information transmission unit, the integrated The integrated on-board reader is installed at the center of the bottom of the vehicle body. The locator detects the strength of the wireless energy signal sent by the integrated on-board reader in real time, and outputs the train arrival signal to the trackside equipment when the energy signal is detected to be valid. The fixed information transmission unit and the variable information transmission unit do not need the power supply provided by the trackside equipment when the fixed information transmission unit and the variable information transmission unit work normally, and the working power supply of the fixed information transmission unit and the variable information transmission unit is provided by the integrated vehicle-mounted reader in a wireless manner;

固定信息传输单元传输内部存储固定的线路速度、线路参数固定的信息；可变信息传输单元传输内部存储的默认报文信息或外部输入状态对应的报文信息，根据外部轨旁设备的状态选择对应存储区的报文；The fixed information transmission unit transmits the information with fixed line speed and fixed line parameters stored internally; the variable information transmission unit transmits the default message information stored in the internal storage or the message information corresponding to the external input state, and the corresponding information is selected according to the state of the external trackside equipment. messages in the storage area;

固定信息传输单元和可变信息传输单元只有和一体化车载读取器之间存在作用区域时才开始信息传输，一体化车载读取器发送地面设备所需的能量信号、接收地面信息传输单元发送的数据信息，同时将接收到的数据信息发送至车载主机单元，并能够根据车载主机单元的命令开启或停止探测地面信息传输单元的功能。The fixed information transmission unit and the variable information transmission unit start information transmission only when there is an active area between the integrated vehicle-mounted reader and the integrated vehicle-mounted reader. The integrated vehicle-mounted reader sends the energy signal required by the ground equipment and receives the transmission from the ground information transmission unit. At the same time, the received data information is sent to the on-board host unit, and the function of detecting the ground information transmission unit can be started or stopped according to the command of the on-board host unit.

优选的，所述定位器是采集一体化车载读取器发出的能量信号，以能量强度作为检测指标，从检测到能量信号开始直到能量信号消失，整个过程中持续输出过车信号作为定位信号，以干接点的方式输出。Preferably, the locator collects the energy signal sent by the integrated vehicle-mounted reader, and uses the energy intensity as the detection index. From the detection of the energy signal until the energy signal disappears, the vehicle passing signal is continuously output as the positioning signal in the whole process. Output as a dry contact.

优选的，所述可变信息传输单元，正常使用时不需要外部设备提供电源，通过接收一体化车载读取器发送的能量信号作为工作电源，当得到稳定的电源后开始工作，通过采集轨旁设备的输入状态选择对应存储区的报文，以无线的方式将该报文发送出去。Preferably, the variable information transmission unit does not require external equipment to provide power during normal use. It receives the energy signal sent by the integrated vehicle-mounted reader as the working power source, and starts to work when a stable power source is obtained. The input state of the device selects the message corresponding to the storage area, and sends the message wirelessly.

优选的，所述固定信息传输单元，正常使用时不需要外部设备提供电源，通过接收一体化车载读取器发送的能量信号作为工作电源，当得到稳定的电源后开始工作，以无线的方式发送存储在内部的报文信息。Preferably, the fixed information transmission unit does not require external equipment to provide power during normal use. It receives the energy signal sent by the integrated vehicle-mounted reader as the working power source, and starts to work when a stable power source is obtained, and transmits it in a wireless manner. Message information stored internally.

优选的，所述一体化车载读取器，正常工作时持续向地面辐射无线能量信号，用于激活地面设备，为地面设备提供工作电源，被动接收地面信息传输单元发送的上传链路信号，以能量强度作为检测指标，生成定位信号，接收和解调、解码上传链路信号，获得地面轨旁设备状态，将接收到的报文信息和位置信息通过总线通信方式和开关量模式发送至车载主机单元。Preferably, the integrated vehicle-mounted reader continuously radiates wireless energy signals to the ground during normal operation, which is used to activate ground equipment, provide working power for ground equipment, and passively receive the uplink signal sent by the ground information transmission unit to The energy intensity is used as the detection index to generate the positioning signal, receive, demodulate, and decode the uplink signal, obtain the status of the ground trackside equipment, and send the received message information and position information to the vehicle host through the bus communication method and the switch mode. unit.

优选的，所述一体化车载读取器与车载主机单元之间通过“X-B”接口进行连接，且“X-B”接口为有线接口，所述一体化车载读取器与地面设备之间通过“X-A”接口进行连接，且“X-A”接口为无线接口，所述可变信息传输单元和定位器与轨旁设备之间通过“X-C”接口和“X-D”接口进行连接，且“X-C”接口和“X-D”接口均为有线接口。Preferably, the integrated vehicle-mounted reader and the vehicle-mounted host unit are connected through an "X-B" interface, and the "X-B" interface is a wired interface, and the integrated vehicle-mounted reader and the ground equipment are connected through an "X-A" interface. " interface is connected, and the "X-A" interface is a wireless interface, the variable information transmission unit and the locator and the trackside equipment are connected through the "X-C" interface and the "X-D" interface, and the "X-C" interface and " X-D” interfaces are wired interfaces.

优选的，所述一体化车载读取器与地面设备之间的接口“X-A”采用电磁感应方式，用于地-车间的数据传输，还用于对地面信息传输单元内部报文进行读写操作，接口“X-A”在功能上分为以下3个子接口：Preferably, the interface "X-A" between the integrated vehicle-mounted reader and the ground equipment adopts electromagnetic induction, which is used for data transmission between ground and workshop, and is also used for reading and writing the internal messages of the ground information transmission unit. , the interface "X-A" is functionally divided into the following three sub-interfaces:

1)、接口“X-A1”是地面信息传输单元向一体化车载读取器传输上行链路数据报文的接口；上行链路磁场产生一种用于上行链路数据PSK的频率，载波频率为6.78MHz。载波频率偏移为6.78MHz±0.015MHz。数据平均数据速率为121.07×(1±5％)kbit/s。报文长度2字节，最大512位；1), the interface "X-A1" is the interface for the ground information transmission unit to transmit the uplink data message to the integrated vehicle reader; the uplink magnetic field generates a frequency for the uplink data PSK, the carrier frequency is 6.78MHz. The carrier frequency offset is 6.78MHz±0.015MHz. The average data rate of data is 121.07×(1±5%) kbit/s. The message length is 2 bytes, with a maximum of 512 bits;

2)、接口“X-A4”是一体化车载读取器向地面信息传输单元传输能量的接口，用以激活地面设备工作；能量信号为连续信号，磁场频率为125KHz±2kHz；2) The interface "X-A4" is the interface for the integrated vehicle-mounted reader to transmit energy to the ground information transmission unit to activate the ground equipment to work; the energy signal is a continuous signal, and the magnetic field frequency is 125KHz±2kHz;

3)、接口“X-A5”是采用电磁感应方式对固定信息传输单元的默认报文写入或对可变信息传输单元的各个存储分区报文写入的接口，且接口“X-A5”的写入过程通过专用的报文配置工具以无线的方式将报文写入固定信息传输单元或可变信息传输单元中的存储器，固定信息传输单元内部存储一条默认报文，可变信息传输单元存储多条报文，分别对应多个输入状态。3), the interface "X-A5" is the interface that uses electromagnetic induction to write the default message of the fixed information transmission unit or the message of each storage partition of the variable information transmission unit, and the interface "X-A5" During the writing process, the message is written wirelessly into the memory in the fixed information transmission unit or the variable information transmission unit through a dedicated message configuration tool. The fixed information transmission unit internally stores a default message, and the variable information transmission unit Store multiple messages corresponding to multiple input states.

优选的，定位信号是一体化车载读取器根据固定信息传输单元或可变信息传输单元发送的上传信号强度生成，一体化车载读取器通过信号的强度实现精确定位，从信号强度达到检测门限开始直到强度低于检测门限，这个超过检测门限的持续信号就是定位信号，持续的时间为定位时间，对应的物理作用区域为定位区域，定位区域的中心为绝对物理中心。一体化车载读取器连续经过两个地面信息传输单元后，根据两个绝对物理中心之间的时间和速度可以精确计算出列车的位置。Preferably, the positioning signal is generated by the integrated vehicle-mounted reader according to the strength of the upload signal sent by the fixed information transmission unit or the variable information transmission unit. Starting until the intensity is lower than the detection threshold, the continuous signal exceeding the detection threshold is the positioning signal, the duration is the positioning time, the corresponding physical action area is the positioning area, and the center of the positioning area is the absolute physical center. After the integrated on-board reader continuously passes through two ground information transmission units, the position of the train can be accurately calculated according to the time and speed between the two absolute physical centers.

优选的，定位信号是定位器根据一体化车载读取器发送的下传能量信号的强度生成，定位器通过信号的强度实现精确定位，从信号强度达到检测门限开始直到强度低于检测门限，这个超过检测门限的持续信号就是定位信号，持续的时间为定位时间，对应的物理作用区域为定位区域，定位区域的中心为绝对物理中心，该物理中心可作为列车到达定位器所在位置的精确坐标位置。Preferably, the positioning signal is generated by the locator according to the strength of the downlink energy signal sent by the integrated vehicle-mounted reader, and the locator realizes precise positioning through the strength of the signal, starting from the signal strength reaching the detection threshold until the strength is lower than the detection threshold, this The continuous signal that exceeds the detection threshold is the positioning signal, the duration is the positioning time, the corresponding physical action area is the positioning area, and the center of the positioning area is the absolute physical center, which can be used as the precise coordinate position of the train arriving at the position of the locator. .

优选的，信息传输通道是由一体化车载读取器通过或者停在地面信息传输单元上方时，地面设备与车载读取器之间构成的，地面信息传输单元接收到一体化车载读取器发出的能量信号后开始进入工作模式，将存储在固定信息传输单元中的默认报文或可变信息传输单元中的实时状态对应的报文以无线方式发送出去，系统具备探测地面信息传输单元功能、上行链路报文传输功能、数据传输延迟功能。Preferably, the information transmission channel is formed between the ground equipment and the vehicle-mounted reader when the integrated vehicle-mounted reader passes through or is parked above the ground information transmission unit, and the ground information transmission unit receives the transmission from the integrated vehicle-mounted reader. After receiving the energy signal, it starts to enter the working mode, and sends the default message stored in the fixed information transmission unit or the message corresponding to the real-time state in the variable information transmission unit wirelessly. The system has the function of detecting the ground information transmission unit, Uplink message transmission function, data transmission delay function.

与现有技术相比，本发明的有益效果是：Compared with the prior art, the beneficial effects of the present invention are:

1.该车地信息传输系统及精确定位方法可以实现轨旁设备对列车位置的精确定位，同时车载设备也可以根据地面设备发送的无线信号进行精确定位，及时传递精确位置信息，有利于提高列控系统的精确控制。1. The vehicle-ground information transmission system and precise positioning method can realize the precise positioning of the train position by the trackside equipment. At the same time, the vehicle-mounted equipment can also perform precise positioning according to the wireless signals sent by the ground equipment, and transmit the precise position information in time, which is conducive to improving the train speed. precise control of the control system.

2、该车地信息传输系统及精确定位方法可以进行地-车无线数据通信，传递地面信号实时状态，提高列控系统安全性。2. The vehicle-ground information transmission system and the precise positioning method can carry out ground-vehicle wireless data communication, transmit the real-time status of ground signals, and improve the safety of the train control system.

3、该车地信息传输系统及精确定位方法可以通过车载读取模块一体化设计，无独立的收发天线和对应的处理主机，具有成本低、系统简单的特点，并且符合射频识别系统工作频段。3. The vehicle-ground information transmission system and precise positioning method can be designed through the integrated design of the vehicle-mounted reading module, without independent transceiver antennas and corresponding processing hosts, with the characteristics of low cost and simple system, and in line with the working frequency band of the radio frequency identification system.

附图说明Description of drawings

图1是本发明的原理示意图；Fig. 1 is the principle schematic diagram of the present invention;

图2是本发明的地面信息传输单元启动时间示意图；2 is a schematic diagram of the start-up time of the ground information transmission unit of the present invention;

图3是本发明的定位器定位原理示意图；3 is a schematic diagram of the positioning principle of the locator of the present invention;

图4是本发明的一体化车载读取器定位原理示意图。FIG. 4 is a schematic diagram of the positioning principle of the integrated vehicle-mounted reader of the present invention.

图中：1、一体化车载读取器；2、定位器；3、固定信息传输单元；4、可变信息传输单元。In the figure: 1. Integrated vehicle-mounted reader; 2. Locator; 3. Fixed information transmission unit; 4. Variable information transmission unit.

具体实施方式Detailed ways

下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

请参阅图1-4，本发明提供一种技术方案：一种车地信息传输系统及精确定位方法，包括：一体化车载读取器1、定位器2、固定信息传输单元3和可变信息传输单元4，所述一体化车载读取器1安装在列车底部中央位置，所述定位器2实时检测一体化车载读取器1发出的无线能量信号强度，当检测到能量信号有效时输出列车到达信号至轨旁设备，所述固定信息传输单元3和可变信息传输单元4正常工作时不需要轨旁设备提供电源，固定信息传输单元3和可变信息传输单元4的工作电源由一体化车载读取器1以无线的方式提供；1-4, the present invention provides a technical solution: a vehicle-ground information transmission system and a precise positioning method, comprising: an integrated vehicle-mounted reader 1, a locator 2, a fixed information transmission unit 3 and variable information Transmission unit 4, the integrated on-board reader 1 is installed at the central position of the bottom of the train, the locator 2 detects the strength of the wireless energy signal sent by the integrated on-board reader 1 in real time, and outputs the train when the detected energy signal is valid When the signal arrives at the trackside equipment, the fixed information transmission unit 3 and the variable information transmission unit 4 do not need power supply from the trackside equipment when the fixed information transmission unit 3 and the variable information transmission unit 4 work normally. The vehicle-mounted reader 1 is provided in a wireless manner;

固定信息传输单元3传输内部存储固定的线路速度、线路参数固定的信息；可变信息传输单元4传输内部存储的默认报文信息或外部输入状态对应的报文信息，根据外部轨旁设备的状态选择对应存储区的报文；The fixed information transmission unit 3 transmits the information with fixed line speed and fixed line parameters stored inside; the variable information transmission unit 4 transmits the default message information stored in the interior or the message information corresponding to the external input state, according to the state of the external trackside equipment. Select the message corresponding to the storage area;

固定信息传输单元3和可变信息传输单元4只有和一体化车载读取器1之间存在作用区域时才开始信息传输，一体化车载读取器1发送地面设备所需的能量信号、接收地面信息传输单元发送的数据信息，同时将接收到的数据信息发送至车载主机单元，并能够根据车载主机单元的命令开启或停止探测地面信息传输单元的功能The fixed information transmission unit 3 and the variable information transmission unit 4 start information transmission only when there is an active area with the integrated vehicle-mounted reader 1. The integrated vehicle-mounted reader 1 transmits the energy signal required by the ground equipment and receives the ground equipment. The data information sent by the information transmission unit, and at the same time, the received data information is sent to the vehicle-mounted host unit, and the function of detecting the ground information transmission unit can be started or stopped according to the command of the vehicle-mounted host unit.

参照图1，所述定位器2是采集一体化车载读取器1发出的能量信号，以能量强度作为检测指标，从检测到能量信号开始直到能量信号消失，整个过程中持续输出过车信号作为定位信号，以干接点的方式输出；Referring to Figure 1, the locator 2 collects the energy signal sent by the integrated vehicle-mounted reader 1, and uses the energy intensity as the detection index. From the detection of the energy signal until the energy signal disappears, the vehicle-passing signal is continuously output during the whole process. The positioning signal is output in the form of dry contact;

参照图1，所述固定信息传输单元3，正常使用时不需要外部设备提供电源，通过接收一体化车载读取器1发送的能量信号作为工作电源，当得到稳定的电源后开始工作，以无线的方式发送存储在内部的报文信息；Referring to FIG. 1, the fixed information transmission unit 3 does not require external equipment to provide power during normal use. It receives the energy signal sent by the integrated vehicle-mounted reader 1 as a working power supply, and starts to work when a stable power supply is obtained. way to send the message information stored in the internal;

参照图1，所述可变信息传输单元4，正常使用时不需要外部设备提供电源，通过接收一体化车载读取器1发送的能量信号作为工作电源，当得到稳定的电源后开始工作，通过采集轨旁设备的输入状态选择对应存储区的报文，以无线的方式将该报文发送出去；Referring to FIG. 1, the variable information transmission unit 4 does not require external equipment to provide power during normal use. It receives the energy signal sent by the integrated vehicle-mounted reader 1 as a working power supply, and starts to work when a stable power supply is obtained. Collect the input state of the trackside equipment, select the message corresponding to the storage area, and send the message wirelessly;

参照图1，所述一体化车载读取器1，正常工作时持续向地面辐射无线能量信号，用于激活地面设备，为地面设备提供工作电源，被动接收地面信息传输单元发送的上传链路信号，以能量强度作为检测指标，生成定位信号，接收和解调、解码上传链路信号，获得地面轨旁设备状态，将接收到的报文信息和位置信息通过总线通信方式和开关量模式发送至车载主机单元；Referring to FIG. 1 , the integrated vehicle-mounted reader 1 continuously radiates wireless energy signals to the ground during normal operation, which is used to activate ground equipment, provide working power for ground equipment, and passively receive the uplink signal sent by the ground information transmission unit , take the energy intensity as the detection index, generate the positioning signal, receive and demodulate, decode the uplink signal, obtain the status of the ground trackside equipment, and send the received message information and position information to the Vehicle main unit;

参照图1，所述一体化车载读取器1与车载主机单元之间通过“X-B”接口进行连接，且“X-B”接口为有线接口，所述一体化车载读取器1与地面设备之间通过“X-A”接口进行连接，且“X-A”接口为无线接口，所述可变信息传输单元4和定位器2与轨旁设备之间通过“X-C”接口和“X-D”接口进行连接，且“X-C”接口和“X-D”接口均为有线接口；Referring to FIG. 1 , the integrated vehicle-mounted reader 1 and the vehicle-mounted host unit are connected through an “X-B” interface, and the “X-B” interface is a wired interface, and the connection between the integrated vehicle-mounted reader 1 and the ground equipment is The connection is made through the "X-A" interface, and the "X-A" interface is a wireless interface, the variable information transmission unit 4 and the positioner 2 and the trackside equipment are connected through the "X-C" interface and the "X-D" interface, and " X-C" interface and "X-D" interface are wired interfaces;

参照图1，所述一体化车载读取器1与地面设备之间的接口“X-A”采用电磁感应方式，用于地-车间的数据传输，还用于对地面信息传输单元内部报文进行读写操作，接口“X-A”在功能上分为以下3个子接口：Referring to Fig. 1, the interface "X-A" between the integrated vehicle-mounted reader 1 and the ground equipment adopts the electromagnetic induction method, which is used for data transmission between ground and workshop, and is also used for reading the internal messages of the ground information transmission unit. For write operations, the interface "X-A" is functionally divided into the following 3 sub-interfaces:

1、接口“X-A1”是地面信息传输单元向一体化车载读取器1传输上行链路数据报文的接口；上行链路磁场产生一种用于上行链路数据PSK的频率，载波频率为6.78MHz。载波频率偏移为6.78MHz±0.015MHz。数据平均数据速率为121.07×(1±5％)kbit/s。报文长度2字节标准型，最大512位；1. The interface "X-A1" is the interface for the ground information transmission unit to transmit the uplink data message to the integrated vehicle-mounted reader 1; the uplink magnetic field generates a frequency for the uplink data PSK, the carrier frequency is 6.78MHz. The carrier frequency offset is 6.78MHz±0.015MHz. The average data rate of data is 121.07×(1±5%) kbit/s. The message length is 2 bytes standard, with a maximum of 512 bits;

2、接口“X-A4”是一体化车载读取器1向地面信息传输单元传输能量的接口，用以激活地面设备工作；能量信号为连续CW信号，磁场频率为125KHz±2kHz；2. The interface "X-A4" is the interface for the integrated vehicle-mounted reader 1 to transmit energy to the ground information transmission unit to activate the ground equipment to work; the energy signal is a continuous CW signal, and the magnetic field frequency is 125KHz±2kHz;

3、接口“X-A5”是采用电磁感应方式对固定信息传输单元3的默认报文写入或对可变信息传输单元4的各个存储分区报文写入的接口，且接口“X-A5”的写入过程通过专用的报文配置工具以无线的方式将报文写入固定信息传输单元3或可变信息传输单元4中的存储器，固定信息传输单元3内部存储一条默认报文，可变信息传输单元4存储多条报文，分别对应多个输入状态；3. The interface "X-A5" is an interface for writing the default message of the fixed information transmission unit 3 or the message writing of each storage partition of the variable information transmission unit 4 by electromagnetic induction, and the interface "X-A5" The writing process of "" wirelessly writes the message into the memory in the fixed information transmission unit 3 or the variable information transmission unit 4 through a special message configuration tool, and the fixed information transmission unit 3 stores a default message inside, which can be The variable information transmission unit 4 stores a plurality of messages, respectively corresponding to a plurality of input states;

车地信息传输系统是一体化车载读取器1经过地面信息传输单元上方时，连接到轨旁设备的可变信息传输单元4应根据轨旁设备提供的状态选择对应存储区的报文，如果状态错误则输出错误状态报文，如果没有轨旁设备的状态信号时输出默认存储区的报文，固定信息传输单元3输出固定的、预先存储的报文，一体化车载读取器1将接口“X-A1”输入的上行链路数据过接口“X-B”发送给车载主机单元，同时还将探测到地面信息传输单元的信息以开关量的方式输出至车载主机单元，作为精确定位信号，当一体化车载读取器1经过地面信息传输单元时或之后，向车载主机单元提供探测到地面信息传输单元的信息，当它过定位器2时，定位器2向轨旁设备提供探测到一体化车载读取器1(列车)的信息，当一体化车载读取器1丧失探测地面信息传输单元功能时，向车载主机单元报告，一体化车载读取器1对接收到的地面信息传输单元传输的报文进行过滤，提供满足时延要求的已解码后的报文给车载主机单元，当一体化车载读取器1的参照标记经过地面信息传输单元参照标记之后不超过1m，车载读取器应已准备好该信息传输单元的报文信息；The vehicle-ground information transmission system is an integrated vehicle-mounted reader 1. When the vehicle-mounted reader 1 passes above the ground information transmission unit, the variable information transmission unit 4 connected to the trackside equipment should select the message corresponding to the storage area according to the state provided by the trackside equipment. If the status is wrong, the error status message will be output. If there is no status signal of the trackside equipment, the message of the default storage area will be output. The fixed information transmission unit 3 outputs the fixed and pre-stored message. The integrated vehicle reader 1 will interface The uplink data input by "X-A1" is sent to the on-board host unit through the interface "X-B", and the information detected by the ground information transmission unit is also output to the on-board host unit in the form of a switch as a precise positioning signal. When the integrated vehicle reader 1 passes through the ground information transmission unit or after, it provides the vehicle host unit with the information that the ground information transmission unit has been detected. When it passes through the locator 2, the locator 2 provides the trackside equipment with the integrated detection The information of the vehicle-mounted reader 1 (train), when the integrated vehicle-mounted reader 1 loses the function of detecting the ground information transmission unit, reports it to the vehicle-mounted host unit, and the integrated vehicle-mounted reader 1 transmits the received ground information transmission unit The message is filtered, and the decoded message that meets the delay requirement is provided to the on-board host unit. When the reference mark of the integrated on-board reader 1 passes through the reference mark of the ground information transmission unit within 1m, the on-board reader The message information of the information transmission unit should be prepared;

参照图1，定位信号是一体化车载读取器1根据固定信息传输单元3或可变信息传输单元4发送的上传信号强度生成，一体化车载读取器1通过信号的强度实现精确定位，从信号强度达到检测门限开始直到强度低于检测门限，这个超过检测门限的持续信号就是定位信号，持续的时间为定位时间，对应的物理作用区域为定位区域，定位区域的中心为绝对物理中心。一体化车载读取器1连续经过两个地面信息传输单元后，根据两个绝对物理中心之间的时间和速度可以精确计算出列车的位置；Referring to Figure 1, the positioning signal is generated by the integrated vehicle-mounted reader 1 according to the strength of the upload signal sent by the fixed information transmission unit 3 or the variable information transmission unit 4, and the integrated vehicle-mounted reader 1 can achieve precise positioning through the strength of the signal, from The signal strength reaches the detection threshold and starts until the strength is lower than the detection threshold. This continuous signal exceeding the detection threshold is the positioning signal, and the duration is the positioning time. The corresponding physical action area is the positioning area, and the center of the positioning area is the absolute physical center. After the integrated on-board reader 1 continuously passes through two ground information transmission units, the position of the train can be accurately calculated according to the time and speed between the two absolute physical centers;

参照图1，定位信号是定位器2根据一体化车载读取器1发送的下传能量信号的强度生成，定位器2通过信号的强度实现精确定位，从信号强度达到检测门限开始直到强度低于检测门限，这个超过检测门限的持续信号就是定位信号，持续的时间为定位时间，对应的物理作用区域为定位区域，定位区域的中心为绝对物理中心，该物理中心可作为列车到达定位器2所在位置的精确坐标位置；Referring to Figure 1, the positioning signal is generated by the locator 2 according to the strength of the downlink energy signal sent by the integrated vehicle-mounted reader 1. The locator 2 realizes precise positioning through the strength of the signal, starting from the signal strength reaching the detection threshold until the strength is lower than Detection threshold, this continuous signal exceeding the detection threshold is the positioning signal, the duration is the positioning time, the corresponding physical action area is the positioning area, and the center of the positioning area is the absolute physical center, which can be used as the train arriving at the location of the locator 2 The precise coordinate position of the location;

参照图1，信息传输通道是由一体化车载读取器1通过或者停在地面信息传输单元上方时，地面设备与车载读取器之间构成的，地面信息传输单元接收到一体化车载读取器1发出的能量信号后开始进入工作模式，将存储在固定信息传输单元3中的默认报文或可变信息传输单元4中的实时状态对应的报文以无线方式发送出去。系统具备探测地面信息传输单元功能、上行链路报文传输功能、数据传输延迟功能。Referring to Figure 1, the information transmission channel is formed between the ground equipment and the vehicle-mounted reader when the integrated vehicle-mounted reader 1 passes through or stops above the ground information transmission unit, and the ground information transmission unit receives the integrated vehicle-mounted reader. After the energy signal sent by the transmitter 1, it starts to enter the working mode, and sends the default message stored in the fixed information transmission unit 3 or the message corresponding to the real-time state in the variable information transmission unit 4 wirelessly. The system has the function of detecting the ground information transmission unit, the uplink message transmission function, and the data transmission delay function.

工作原理：如图1-4所示，在使用该车地信息传输系统及精确定位方法时，车地信息传输系统的车载设备和地面设备分别安装在列车底部中央位置和轨道中央位置，当一体化车载读取器1通过或者停在地面设备上方时，构成车载设备与地面设备之间的信息传输通道。一体化车载读取器1连续发送能量，不间断的探测地面信息传输单元，当一体化车载读取器1到达地面信息传输单元上方时，随着接近距离越来越小地面信息传输单元所获得的能量磁通量越来越大，当获得的磁通量达到φd1时地面信息传输单元开始工作。为了适应更大的列车行驶速度，地面信息传输单元应在Tu时间内发送可解调、解码的数据。固定信息传输单元3发送内部存储的默认报文，可变信息传输单元4根据外部输入的状态选择对应存储区的报文发送。当一体化车载读取器继续移动直至地面信息传输单元接收到的能量小于φd1时停止工作，在工作时间Tw内持续发送Te时间的报文。当一体化车载读取器1通过或者停在相应的地面定位器2上方时，构成车载设备与地面定位器2之间的定位通道，定位器2可以检测一体化车载读器发出的能量信号有无，输出对应状态的开关量信号至轨旁设备作为定位信号；Working principle: As shown in Figure 1-4, when the vehicle-ground information transmission system and precise positioning method are used, the vehicle-mounted equipment and ground equipment of the vehicle-ground information transmission system are respectively installed at the central position of the bottom of the train and the central position of the track. When the on-board reader 1 passes or stops above the ground equipment, it constitutes an information transmission channel between the on-board equipment and the ground equipment. The integrated vehicle-mounted reader 1 continuously transmits energy and continuously detects the ground information transmission unit. When the integrated vehicle-mounted reader 1 reaches the top of the ground information transmission unit, as the approaching distance becomes smaller and smaller, the ground information transmission unit obtains the information obtained by the ground information transmission unit. The energy of the magnetic flux is getting larger and larger, and the ground information transmission unit starts to work when the obtained magnetic flux reaches φd1. In order to adapt to the larger train speed, the ground information transmission unit should send demodulated and decoded data within Tu time. The fixed information transmission unit 3 sends the internally stored default message, and the variable information transmission unit 4 selects the message corresponding to the storage area to send according to the state of the external input. When the integrated vehicle-mounted reader continues to move until the energy received by the ground information transmission unit is less than φd1, it stops working, and continues to send messages of Te time within the working time Tw. When the integrated vehicle-mounted reader 1 passes or stops above the corresponding ground locator 2, it constitutes a positioning channel between the vehicle-mounted device and the ground locator 2. The locator 2 can detect that the energy signal sent by the integrated vehicle-mounted reader has No, output the switch signal of the corresponding state to the trackside equipment as the positioning signal;

一体化车载读取器1和地面定位器2通过信号的强度作为精确定位的数据来源，一体化车载读取器1数据来源是地面信息传输单元通过接口“X-A1”发送的上传信号的强度，地面定位器2数据来源是一体化车载读取器1通过接口“X-A4”发送的能量信号的强度，当车载读取器通过地面定位器2上方时，定位器2接收到的能量信号由弱变强再变弱共持续Ton时间，能量信号强度包络类似梯形状，当能量信号达到阈值电压Vth时开始输出定位信号给轨旁设备，作为列车到达指定位置的确认信号，此信号直至能量信号低于阈值电压Vth后停止，持续时间为Tc。如果一体化车载读取器1停在定位器2上方，则定位器2持续输出定位信号给轨旁设备，轨旁设备此时可根据该信号确认列车停在了指定位置，当车载读取器通过地面信息传输单元上方时，能量达到工作强度后地面信息传输单元开始工作发送上传信号，一体化车载读取器1收到的上传信号能量强度由弱变强再变弱共持续Ton时间，上传信号强度包络类似梯形状，当上传信号达到阈值电压Vth时开始产生定位信号，作为列车到达预定位置的确认信号，此信号直至能量信号低于阈值电压Vth后停止，持续时间为Tc，一体化车载读取器1取Tc时间的中点Center作为经过地面信息传输单元中心点的时间，两个地面信息传输单元的中心点时间差Tp就是经过两个地面信息传输单元的绝对时间差，结合车载主机单元传来的列车速度信息V可以精确定位列车位置，例如，如果经过第一个地面信息传输单元的位置为0米，那么经过第二个地面信息传输单元后列车可以精确计算出到达了V×Tp米的精确位置，这就是该车地信息传输系统及精确定位方法的特点。The integrated vehicle-mounted reader 1 and the ground locator 2 use the signal strength as the data source for precise positioning. The data source of the integrated vehicle-mounted reader 1 is the strength of the upload signal sent by the ground information transmission unit through the interface "X-A1" , the data source of the ground locator 2 is the strength of the energy signal sent by the integrated on-board reader 1 through the interface "X-A4". When the on-board reader passes over the ground locator 2, the energy signal received by the locator 2 From weak to strong and then weak for a total of Ton time, the energy signal strength envelope is similar to a trapezoid. When the energy signal reaches the threshold voltage Vth, it starts to output a positioning signal to the trackside equipment as a confirmation signal for the train to reach the designated position. The energy signal stops when it falls below the threshold voltage Vth for a duration of Tc. If the integrated on-board reader 1 stops above the locator 2, the locator 2 continues to output a positioning signal to the trackside equipment, and the trackside equipment can confirm that the train stops at the specified position according to the signal. When passing above the ground information transmission unit, after the energy reaches the working strength, the ground information transmission unit starts to work to send the upload signal, and the energy intensity of the upload signal received by the integrated vehicle reader 1 changes from weak to strong and then weak for a total of Ton time, uploading The signal strength envelope is similar to the trapezoid shape. When the upload signal reaches the threshold voltage Vth, a positioning signal starts to be generated as a confirmation signal for the train to arrive at the predetermined position. This signal stops until the energy signal is lower than the threshold voltage Vth, and the duration is Tc. The vehicle-mounted reader 1 takes the center point of the Tc time as the time passing through the center point of the ground information transmission unit, and the time difference Tp between the center points of the two ground information transmission units is the absolute time difference passing through the two ground information transmission units. The transmitted train speed information V can accurately locate the train position. For example, if the position passing through the first ground information transmission unit is 0 meters, then the train can accurately calculate that it has reached V×Tp after passing through the second ground information transmission unit. The precise location of the meter is the characteristic of the vehicle-ground information transmission system and precise positioning method.

尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A vehicle-to-ground information transfer system comprising: integration on-vehicle reader (1), locator (2), fixed information transmission unit (3) and variable information transmission unit (4), its characterized in that: the integrated vehicle-mounted reader (1) is installed at the central position of the bottom of a vehicle body, the locator (2) detects the strength of a wireless energy signal sent by the integrated vehicle-mounted reader in real time, when the energy signal is detected to be effective, a train arrival signal is output to trackside equipment, the trackside equipment is not required to provide a power supply when the fixed information transmission unit (3) and the variable information transmission unit (4) work normally, and the working power supply of the fixed information transmission unit (3) and the variable information transmission unit (4) is provided by the integrated vehicle-mounted reader (1) in a wireless mode;
the fixed information transmission unit (3) transmits information with fixed line speed and fixed line parameters stored inside; the variable information transmission unit transmits default message information stored inside or message information corresponding to an external input state, and selects a message of a corresponding storage area according to the state of the external trackside equipment;
the fixed information transmission unit (3) and the variable information transmission unit (4) start information transmission only when an action area exists between the fixed information transmission unit and the integrated vehicle-mounted reader (1), the integrated vehicle-mounted reader (1) sends energy signals required by ground equipment, receives data information sent by the ground information transmission unit, sends the received data information to the vehicle-mounted host unit, and can start or stop the function of detecting the ground information transmission unit according to the command of the vehicle-mounted host unit.
2. A vehicle-ground information transmission system according to claim 1, characterized in that: the locator (2) collects energy signals sent by the integrated vehicle-mounted reader (1), the energy intensity is used as a detection index, the vehicle passing signals are continuously output as locating signals in the whole process from the time of detecting the energy signals until the energy signals disappear, and the locating signals are output in a dry contact mode.
3. A vehicle-ground information transmission system according to claim 1, characterized in that: the fixed information transmission unit (3) does not need external equipment to provide power supply during normal use, receives an energy signal sent by the integrated vehicle-mounted reader (1) to serve as a working power supply, starts to work after obtaining a stable power supply, and sends message information stored in the fixed information transmission unit in a wireless mode.
4. A vehicle-ground information transmission system according to claim 1, characterized in that: the variable information transmission unit (4) does not need external equipment to provide power supply during normal use, and starts to work after obtaining a stable power supply by receiving an energy signal sent by the integrated vehicle-mounted reader (1) as a working power supply, and selects a message of a corresponding storage area by acquiring the input state of trackside equipment, and sends the message out in a wireless mode.
5. A vehicle-ground information transmission system according to claim 1, characterized in that: the integrated vehicle-mounted reader (1) continuously radiates wireless energy signals to the ground during normal work, is used for activating ground equipment, providing a working power supply for the ground equipment, passively receives uplink signals sent by a ground information transmission unit, takes energy intensity as a detection index, generates positioning signals, receives, demodulates and decodes the uplink signals, obtains the state of ground trackside equipment, and sends received message information and position information to a vehicle-mounted host unit through a bus communication mode and a switching value mode.
6. A vehicle-ground information transmission system according to claim 1, characterized in that: the integrated vehicle-mounted reader (1) is connected with the vehicle-mounted host unit through an X-B interface, the X-B interface is a wired interface, the integrated vehicle-mounted reader (1) is connected with ground equipment through an X-A interface, the X-A interface is a wireless interface, the variable information transmission unit (4), the positioner (2) and the trackside equipment are connected through an X-C interface and an X-D interface, and the X-C interface and the X-D interface are wired interfaces.
7. A vehicle-ground information transmission system according to claim 1, characterized in that: an interface X-A between the integrated vehicle-mounted reader (1) and ground equipment adopts an electromagnetic induction mode, is used for data transmission between a ground and a workshop and is also used for performing read-write operation on messages in a ground information transmission unit, and the interface X-A is functionally divided into the following 3 sub-interfaces:
1) the interface X-A1 is an interface for transmitting uplink data messages to the integrated vehicle-mounted reader (1) by the ground information transmission unit; the uplink magnetic field generates a frequency for uplink data PSK, the carrier frequency is 6.78MHz, the carrier frequency offset is 6.78MHz +/-0.015 MHz, the average data rate is 121.07 x (1 +/-5%) kbit/s, the message length is 2 bytes (standard type), and the maximum is 512 bits;
2) the interface X-A4 is an interface for transmitting energy from the integrated vehicle-mounted reader (1) to the ground information transmission unit, and is used for activating ground equipment to work; the energy signal is a Continuous (CW) signal, and the frequency of the magnetic field is 125KHz +/-2 kHz;
3) the interface X-A5 is an interface for writing default messages of the fixed information transmission unit (3) or writing messages of each storage partition of the variable information transmission unit (4) in an electromagnetic induction mode, the writing process of the interface X-A5 writes the messages into a memory in the fixed information transmission unit (3) or the variable information transmission unit (4) in a wireless mode through a special message configuration tool, one default message is stored in the fixed information transmission unit (3), and the variable information transmission unit (4) stores a plurality of messages which respectively correspond to a plurality of input states.
8. The accurate positioning method for the vehicle-ground information transmission comprises a positioning signal and an information transmission channel, and is characterized in that: the positioning signal is that the integrated vehicle-mounted reader (1) generates the integrated vehicle-mounted reader (1) according to the strength of an uploaded signal sent by the fixed information transmission unit (3) or the variable information transmission unit (4) to realize accurate positioning through the strength of the signal, the continuous signal exceeding the detection threshold is the positioning signal from the time the signal strength reaches the detection threshold until the strength is lower than the detection threshold, the continuous time is the positioning time, the corresponding physical action area is the positioning area, the center of the positioning area is an absolute physical center, and after the integrated vehicle-mounted reader (1) continuously passes through the two ground information transmission units, the position of the train can be accurately calculated according to the time and the speed between the two absolute physical centers.
9. The accurate positioning method for vehicle-ground information transmission according to claim 8, characterized in that: the positioning signal is generated by the positioner (2) according to the strength of a downlink energy signal sent by the integrated vehicle-mounted reader (1), the positioner (2) realizes accurate positioning through the strength of the signal, the continuous signal exceeding the detection threshold is the positioning signal from the moment the signal strength reaches the detection threshold until the strength is lower than the detection threshold, the continuous time is the positioning time, the corresponding physical action area is a positioning area, the center of the positioning area is an absolute physical center, and the physical center can be used as the accurate coordinate position of the position where the train reaches the positioner (2).
10. The accurate positioning method for vehicle-ground information transmission according to claim 9, characterized in that: the information transmission channel is formed between ground equipment and a vehicle-mounted reader when the integrated vehicle-mounted reader (1) passes through or stops above a ground information transmission unit, the ground information transmission unit starts to enter a working mode after receiving an energy signal sent by the integrated vehicle-mounted reader (1), and sends out a default message stored in a fixed information transmission unit (3) or a message corresponding to a real-time state in a variable information transmission unit (4) in a wireless mode.
CN202210763209.8A 2022-06-29 2022-06-29 Vehicle-ground information transmission system and accurate positioning method Active CN114954575B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210763209.8A CN114954575B (en) 2022-06-29 2022-06-29 Vehicle-ground information transmission system and accurate positioning method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210763209.8A CN114954575B (en) 2022-06-29 2022-06-29 Vehicle-ground information transmission system and accurate positioning method

Publications (2)

Publication Number Publication Date
CN114954575A true CN114954575A (en) 2022-08-30
CN114954575B CN114954575B (en) 2024-03-12

Family

ID=82967518

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210763209.8A Active CN114954575B (en) 2022-06-29 2022-06-29 Vehicle-ground information transmission system and accurate positioning method

Country Status (1)

Country Link
CN (1) CN114954575B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024078056A1 (en) * 2022-10-12 2024-04-18 沈阳铁路信号有限责任公司 Message controllable passive transponder and message sending method

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA817032B (en) * 1980-10-24 1982-11-24 Int Standard Electric Corp Inermittent data system
EP2974939A1 (en) * 2014-07-17 2016-01-20 Hitachi, Ltd. Train management system
CN107585181A (en) * 2017-08-11 2018-01-16 北京交通大学 A kind of train positioning system based on deep learning
CN109591854A (en) * 2018-11-26 2019-04-09 万菊仙 Train control monitoring method based on electric power Internet of Things
CN110588722A (en) * 2019-09-23 2019-12-20 北京全路通信信号研究设计院集团有限公司 Train positioning method, train positioning processing unit and beacon reading unit
CN111071304A (en) * 2019-12-28 2020-04-28 卡斯柯信号有限公司 Train-mounted speed measurement positioning system and method based on satellite
CN111422219A (en) * 2020-04-30 2020-07-17 北京和利时系统工程有限公司 Main lobe message identification method and device
CA3074977A1 (en) * 2019-04-12 2020-10-12 Thales Management & Services Deutschland Gmbh A method for safely and autonomously determining a position information of a train on a track
CN211765598U (en) * 2019-06-28 2020-10-27 成都九壹通智能科技股份有限公司 Tracking system based on subway train accurate positioning
CN211765597U (en) * 2019-06-28 2020-10-27 成都九壹通智能科技股份有限公司 Track circuit shunting fault detection system based on train accurate positioning
CN112429043A (en) * 2020-11-26 2021-03-02 北交智慧科技有限公司 Transponder system and transponder for a rail vehicle
CN112622980A (en) * 2020-11-18 2021-04-09 中国国家铁路集团有限公司 Response positioning system suitable for shunting locomotive
CN112671429A (en) * 2021-01-12 2021-04-16 山西润泽丰科技股份有限公司 Transponder transmission system
CN113602323A (en) * 2021-09-06 2021-11-05 陈建明 Method and system for realizing train occupation and integrity check and train control by using transponder
CN114435430A (en) * 2020-11-02 2022-05-06 比亚迪股份有限公司 Method, system, device and medium for compensating and correcting positioning error of transponder

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA817032B (en) * 1980-10-24 1982-11-24 Int Standard Electric Corp Inermittent data system
EP2974939A1 (en) * 2014-07-17 2016-01-20 Hitachi, Ltd. Train management system
CN107585181A (en) * 2017-08-11 2018-01-16 北京交通大学 A kind of train positioning system based on deep learning
CN109591854A (en) * 2018-11-26 2019-04-09 万菊仙 Train control monitoring method based on electric power Internet of Things
CA3074977A1 (en) * 2019-04-12 2020-10-12 Thales Management & Services Deutschland Gmbh A method for safely and autonomously determining a position information of a train on a track
CN211765597U (en) * 2019-06-28 2020-10-27 成都九壹通智能科技股份有限公司 Track circuit shunting fault detection system based on train accurate positioning
CN211765598U (en) * 2019-06-28 2020-10-27 成都九壹通智能科技股份有限公司 Tracking system based on subway train accurate positioning
CN110588722A (en) * 2019-09-23 2019-12-20 北京全路通信信号研究设计院集团有限公司 Train positioning method, train positioning processing unit and beacon reading unit
CN111071304A (en) * 2019-12-28 2020-04-28 卡斯柯信号有限公司 Train-mounted speed measurement positioning system and method based on satellite
CN111422219A (en) * 2020-04-30 2020-07-17 北京和利时系统工程有限公司 Main lobe message identification method and device
CN114435430A (en) * 2020-11-02 2022-05-06 比亚迪股份有限公司 Method, system, device and medium for compensating and correcting positioning error of transponder
CN112622980A (en) * 2020-11-18 2021-04-09 中国国家铁路集团有限公司 Response positioning system suitable for shunting locomotive
CN112429043A (en) * 2020-11-26 2021-03-02 北交智慧科技有限公司 Transponder system and transponder for a rail vehicle
CN112671429A (en) * 2021-01-12 2021-04-16 山西润泽丰科技股份有限公司 Transponder transmission system
CN113602323A (en) * 2021-09-06 2021-11-05 陈建明 Method and system for realizing train occupation and integrity check and train control by using transponder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
蒋海林;步兵;郜春海;唐涛;: "基于位置的CBTC系统无线局域网切换机制", 铁道学报, no. 10, 15 October 2011 (2011-10-15) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024078056A1 (en) * 2022-10-12 2024-04-18 沈阳铁路信号有限责任公司 Message controllable passive transponder and message sending method

Also Published As

Publication number Publication date
CN114954575B (en) 2024-03-12

Similar Documents

Publication Publication Date Title
CN112429042B (en) Train integrity detection device and method based on RFID technology
JP4370415B2 (en) Automatic train protection stop device for railway control using data communication (ATPS FOR CONTROLLING TRAIN USING DATA COMMUNICATION)
WO2021174764A1 (en) Transmission method and system for train arrival route information and train departure route information
CN112622980B (en) A response positioning system suitable for shunting locomotives
CN106515790B (en) A kind of auxiliary anti-collision early warning method based on bilateral round trip ranging
CN102393897A (en) Active RFID identification system and control method thereof for accurately reading boundary
CN114954575B (en) Vehicle-ground information transmission system and accurate positioning method
RU2452644C2 (en) System to determine railway haul unoccupancy
CN103171595A (en) Rail transit train rear-end prevention device based on pseudo-random code radio frequency distance measurement
CN109353378A (en) A kind of vehicle-mounted monitoring information transmission device of railway and its implementation
CN101364816A (en) Large capacity spot type answering machine
CN205427177U (en) Metal underground mine locomotive positioner
CN210982767U (en) Active responder system for simulating rail transit
CN209962112U (en) Derailment prediction and emergency processing system for monorail transport vehicle
CN205490541U (en) Remote recognition device
CN201839280U (en) 400kHz-800mHz hybrid communication device
CN108819988B (en) Initial positioning method of tramcar initial positioning system
CN102006092B (en) A 400kHz and 800MHz hybrid communication device and method
CN108068843A (en) A kind of secondary ranging for preventing collision method for early warning based on conflict avoidance
CN203338579U (en) Parking location monitoring device using surface acoustic wave tag
CN213594274U (en) Communication device for rail transit vehicle room
CN217643358U (en) Point type responder system based on railway sand table model
CN202159346U (en) Active RFID (Radio Frequency Identification Devices) system
CN103106416A (en) Low-frequency magnetic transmission communication reader for liquid and tag for the same
CN216943112U (en) Tramcar underground tunnel district positioner

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20250402

Address after: 10th Floor, Zhonghengjian Building, No. 36 Industrial Road, Taiyuan Xuefu Park, Shanxi Comprehensive Reform Demonstration Zone, Taiyuan City, Shanxi Province 030000

Patentee after: Shanxi runzefeng Technology Co.,Ltd.

Country or region after: China

Address before: 315000 room 7-1-703, No. 55, Fuye street, camel street, Zhenhai District, Ningbo City, Zhejiang Province

Patentee before: Ningbo Jijin Technology Development Co.,Ltd.

Country or region before: China