CN210822295U

CN210822295U - Vehicle-mounted safety maintenance communication platform based on LTE-R network

Info

Publication number: CN210822295U
Application number: CN201920473457.2U
Authority: CN
Inventors: 刘文元; 徐钧
Original assignee: Tianjin Huaze Ruiwei Information Technology Co ltd
Current assignee: Tianjin Huaze Ruiwei Information Technology Co ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2020-06-23
Anticipated expiration: 2029-04-10

Abstract

The utility model relates to a communication platform is maintained to on-vehicle safety based on LTE-R network, including DC110V electrical unit, LTE transmission unit, the control unit, satellite positioning unit, exchange interface unit, early warning unit and extension unit. The utility model has the advantages that: the platform is connected with the existing wireless communication locomotive platform (CIR) of the locomotive through a network cable to perform necessary data transmission and interaction, acquire information such as speed, kilometer marks, running lines and the like of running trains, register identities to a central server after logging in a network to acquire IP addresses, send train position information to the central server, and display alarm information issued by the central server through an operation display terminal (MMI) of the locomotive platform and store the alarm information locally.

Description

Vehicle-mounted safety maintenance communication platform based on LTE-R network

Technical Field

The utility model relates to a train protection alarm system especially relates to a vehicle-mounted safety maintenance communication platform based on LTE-R network and implementation method thereof.

Background

The train protection alarm is one of important special services of China railway, and plays an irreplaceable role in ensuring the safe operation of the train. In recent years, railway communication networks are rapidly developed, the coverage construction of a full-line LTE-R private network is completed on some local railways, and all locomotives are also configured with CIR locomotive platforms based on the LTE-R technology. Along with the high-speed development of railway communication, an efficient train protection alarm system is always lacked, so that the train operation protection is enhanced, the safe and stable operation of the train is ensured, the operation safety of line patrol personnel and line constructors is improved, and the occurrence of collision accidents of the train and the operators is avoided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defects in the prior art, and provides a vehicle-mounted safety maintenance communication platform based on an LTE-R network and an implementation method thereof, which can improve the railway safety, prevent accidents such as collision between a running train and operating personnel, and simultaneously can automatically send train approaching early warning information to adjacent line operating personnel to prompt the operating personnel to approach the train for avoiding,

the utility model discloses a realize through following technical scheme:

a vehicle-mounted safety maintenance communication platform based on an LTE-R network comprises a DC110V power supply unit, an LTE transmission unit, a control unit, a satellite positioning unit, an exchange interface unit, an early warning unit and an extension unit, wherein the power supply unit supplies power to other units; the LTE transmission unit is connected with an LTE-1800MHz private network and is in communication connection with the inside of other units; the control unit controls other units and sends locomotive information to the expansion unit; the satellite positioning unit adopts a CAN bus access platform and a GPS/Beidou dual-mode satellite receiving module to externally output satellite positioning information and communicate with other units; the exchange interface unit adopts an M12 interface to realize data communication with the CIR, and other units communicate; the early warning unit is connected with the server through a network and is connected with the exchange interface unit; the expansion unit reserves 5 expansion slots on the vehicle-mounted safety maintenance platform.

According to the technical scheme, preferably, the LTE transmission unit comprises a CPU, an LTE module, a SIM card circuit, a CAN interface, an SD card, an audio converter, a single chip microcomputer, a reset circuit, and an ethernet interface, wherein the CPU controls the LTE module to log on the network and complete all service logics by using an industrial ARM core board with a main frequency of 1G and a memory of 512M; the LTE module is an LTE network access unit, and the core CPU is communicated with the LTE module through a USB interface; the SIM card circuit consists of an SIM card socket, an SIM card and other resistance-capacitance devices, and the LTE module realizes data communication with the SIM card through the SIM card circuit; the CAN interface realizes the internal communication between the main control unit and other units; the SD card is used for system programming and data storage thereof; the audio converter mainly converts the difference of the audio signals into single end or vice versa; the singlechip realizes serial port extension of the core board and carries out communication through CMOS/RS422 level conversion; when the main control software is abnormal and the periodic pulse cannot be output, the reset circuit outputs a reset signal by the reset chip to realize system restart; the ethernet interface implements internal data ethernet transport.

The utility model has the advantages that: the platform is connected with the existing wireless communication locomotive platform (CIR) of the locomotive through a network cable to perform necessary data transmission and interaction, acquire information such as speed, kilometer marks, running lines and the like of running trains, register identities to a central server after logging in a network to acquire IP addresses, send train position information to the central server, and display alarm information issued by the central server through an operation display terminal (MMI) of the locomotive platform and store the alarm information locally.

Drawings

Fig. 1 shows a system composition diagram of an embodiment of the present invention.

Fig. 2 shows an LTE transmission unit hardware block diagram according to an embodiment of the present invention.

Fig. 3 shows a hardware block diagram of a control, switching or early warning unit of an embodiment of the invention.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.

As shown in the figure, the embodiment discloses a vehicle-mounted safety maintenance communication platform based on an LTE-R network, which includes a DC110V power supply unit, an LTE transmission unit, a control unit, a satellite positioning unit, an exchange interface unit, an early warning unit, and an extension unit, wherein the power supply unit supplies power to other units; the LTE transmission unit is connected with an LTE-1800MHz private network and is in communication connection with the inside of other units; the control unit controls other units and sends locomotive information to the expansion unit; the satellite positioning unit adopts a CAN bus access platform and a GPS/Beidou dual-mode satellite receiving module to externally output satellite positioning information and communicate with other units; the exchange interface unit adopts an M12 interface to realize data communication with the CIR, and other units communicate; the early warning unit is connected with the server through a network and is connected with the exchange interface unit; the expansion unit reserves 5 expansion slots on the vehicle-mounted safety maintenance platform.

According to the above embodiment, the onboard safety maintenance communication platform is preferably directly mountable in a standard 19 inch cabinet, 3U in height.

According to the above embodiment, preferably, the LTE transmission unit includes a CPU, an LTE module, a SIM card circuit, a CAN interface, an SD card, an audio converter, a single chip microcomputer, a reset circuit, and an ethernet interface, where the CPU uses an industrial ARM core board with a main frequency 1G and a memory 512M to control the LTE module to log in a network and complete all service logics; the LTE module is an LTE network access unit, and the core CPU is communicated with the LTE module through a USB interface; the SIM card circuit consists of an SIM card socket, an SIM card and other resistance-capacitance devices, and the LTE module realizes data communication with the SIM card through the SIM card circuit; the CAN interface realizes the internal communication between the main control unit and other units; the SD card is used for system programming and data storage thereof; the audio converter mainly converts the difference of the audio signals into single end or vice versa; the singlechip realizes serial port extension of the core board and carries out communication through CMOS/RS422 level conversion; when the main control software is abnormal and the periodic pulse cannot be output, the reset circuit outputs a reset signal by the reset chip to realize system restart; the ethernet interface implements internal data ethernet transport.

According to the above embodiment, preferably, the core CPU employs LPC4357, and CAN provide a USB interface, a CAN interface, a LAN interface, and the like to the outside, thereby implementing functions such as data interaction, reset control, status monitoring, and storage.

According to the embodiment, the implementation method of the vehicle-mounted safety maintenance communication platform based on the LTE-R network is preferably disclosed, wherein a power supply unit is responsible for converting DC110V into DC13.8V and supplying the DC13.8V to other units in a host; the LTE transmission unit is responsible for providing a wireless transmission channel of the LTE-1800MHz private network and realizing internal communication with the main control unit and other units; the control unit controls and configures other units, detects and judges the working state and information of each slot unit in the system, and simultaneously sends locomotive related information to the expansion unit; the satellite positioning unit adopts a CAN bus access platform and a GPS/Beidou dual-mode satellite receiving module to externally output satellite positioning information and communicate with other units; the exchange interface unit provides Ethernet exchange resource, adopts M12 interface to realize data communication with CIR, provides Ethernet data exchange channel for the expansion unit to receive CIR service data, and transfers it to relative unit; after the early warning unit is powered on, user information is registered to the server through the network, position information is sent to the server at regular time, and meanwhile, approaching early warning information sent by the server is received, read and forwarded to the exchange interface unit for processing; the expansion unit reserves 5 expansion slots on the vehicle-mounted safety maintenance platform, and each slot provides DC13.8V power supplies, a CAN interface, an Ethernet interface and other necessary detection signals for the expansion unit.

According to the embodiment, the power supply unit preferably adopts an integral power supply module, so that the power supply unit is convenient to disassemble, assemble and maintain, the working temperature meets-25-70 ℃, and the relevant requirements of the iron standard on the vehicle-mounted power supply are met.

According to the above embodiment, preferably, the control unit is mainly responsible for performing necessary control and configuration, detection, and judgment on the operating state and information of each slot unit in the system for other units (such as the LTE transmission unit), and simultaneously sends locomotive-related information, such as the locomotive number, the train number, the position information, the kilometer sign information, the operating speed, and the like, to the extension unit.

According to the above embodiment, the expansion unit preferably reserves 5 expansion slots on the vehicle-mounted security maintenance platform in consideration of future equipment requirements, and each slot will provide DC13.8V power supplies, a CAN interface, an ethernet interface, and other necessary detection signals for the expansion unit.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a vehicle-mounted safety maintenance communication platform based on LTE-R network which characterized in that: comprises a DC110V power supply unit, an LTE transmission unit, a control unit, a satellite positioning unit, a switching interface unit, an early warning unit and an extension unit, wherein

The power supply unit supplies power to the LTE transmission unit, the control unit, the satellite positioning unit, the exchange interface unit, the early warning unit and the extension unit;

the LTE transmission unit is connected with an LTE-1800MHz private network and is in communication connection with the control unit, the satellite positioning unit, the exchange interface unit, the early warning unit and the expansion unit;

the control unit controls the DC110V power supply unit, the LTE transmission unit, the satellite positioning unit, the exchange interface unit and the early warning unit and sends locomotive information to the expansion unit;

the satellite positioning unit adopts a CAN bus access platform and a GPS/Beidou dual-mode satellite receiving module to externally output satellite positioning information and is communicated with the DC110V power supply unit, the LTE transmission unit, the control unit, the exchange interface unit, the early warning unit and the extension unit;

the exchange interface unit realizes data communication with the CIR by adopting an M12 interface and communicates with the DC110V power supply unit, the LTE transmission unit, the control unit, the satellite positioning unit, the early warning unit and the expansion unit;

the early warning unit is connected with the server through a network and is connected with the exchange interface unit;

and 5 expansion slots are reserved on the vehicle-mounted safety maintenance platform by the expansion unit.

2. The vehicle-mounted safety maintenance communication platform based on the LTE-R network as claimed in claim 1, wherein: the LTE transmission unit comprises a CPU, an LTE module, a SIM card circuit, a CAN interface, an SD card, an audio converter, a singlechip, a reset circuit and an Ethernet interface, wherein

The CPU adopts an industrial ARM core board with a main frequency 1G and a memory 512M to control the LTE module to log in the network and complete all service logics;

the LTE module is an LTE network access unit, and the core CPU is communicated with the LTE module through a USB interface;

the LTE module realizes data communication with the SIM card through the SIM card circuit;

the CAN interface realizes internal communication between the main control unit and the CPU, the LTE module, the SIM card circuit, the SD card, the audio converter, the singlechip, the reset circuit and the Ethernet interface;

the SD card is used for system programming and data storage thereof;

the audio converter mainly converts the difference of the audio signals into single end or vice versa;

the singlechip realizes serial port extension of the core board and carries out communication through CMOS/RS422 level conversion;

when the main control software is abnormal and the periodic pulse cannot be output, the reset circuit outputs a reset signal by the reset chip to realize system restart;

the ethernet interface implements internal data ethernet transport.