CN102642542A - Rolling stock data acquisition device based on Ethernet - Google Patents

Abstract

The invention discloses a rolling stock data acquisition device based on an Ethernet, which comprises a master control module, an Ethernet module, a UART (universal asynchronous receiver transmitter) module, an A/D (analog/digital) module, an AIO (asynchronous input/output) module, an MVB (multifunction vehicle bus) module, a circuit protection module and a working power module. The vehicular Ethernet with an M12 interface is used for large volume data conversion and transmission, and the data acquisition device can receive various standard sensor signals and RS485 and MVB data. By the aid of the rolling stock data acquisition device, state and failure information of various components and equipment on trains can be effectively acquired, converted and integrated in various network control environments of various rolling stocks, and accordingly driving safety of the rolling stocks is reliably guaranteed.

Description

A kind of rolling stock data acquisition unit based on ethernet

Technical field

The present invention relates to a kind of vehicle carried data collecting device, specifically is a kind of rolling stock data acquisition unit based on ethernet.

Background technology

Railway transportation is one of main transportation mode of China, along with the continuous expansion of railway coverage, the stability of locomotive equipment has been had requirements at the higher level.Along with China railways speed raising several times; Locomotive and high speed train safety, reliable and efficient operation are had higher requirement; Problems such as locomotive and high speed train maintenance means backwardness and service ability deficiency also expose gradually; And the common recognition that addresses this problem is exactly to gather the operational factor at the multiple position of vehicle-mounted major part and fault in locomotive and the high speed train operational process in real time, and in real time with these data transmission to ground data center, by fault localization system the data that obtained is analyzed, judged; Thereby ensure locomotive and high speed train traffic safety, improve the automation and the intellectuality of track traffic total system.

At present, the obtain manner of China's rolling stock status data is more single.Usually the data acquisition modes that is adopted on the train be to utilize traditional vehicle bus to carry out data transmission, its transfer rate is low, has been difficult to satisfy the requirement to the Large Volume Data information transfer.Therefore, need set up a kind of data acquisition platform, utilize high speed, the high bandwidth characteristics of ethernet, can satisfy the requirement of on rolling stock, carrying out large capacity data acquisition fully based on ethernet network.

Summary of the invention

The objective of the invention is deficiency to existing rolling stock data acquisition transmitting device; A kind of rolling stock data acquisition unit based on ethernet is provided; Collection ethernet network and data acquisition are the synthetic information acquisition device of one, can actv. integration locomotive on the status data of distinct device, different bus.Through each mobile unit fault recognition rate of raising rolling stock, thus the reliability of guarantee train operation.

The technical scheme that the present invention solves the problems of the technologies described above is following:

A kind of rolling stock data acquisition unit based on ethernet; Hereinafter to be referred as device, it is characterized in that device is made up of main control module, ethernet module, UART module, A/D module, AIO module, MVB module, ISP debugging module, circuit protection module and working power module.

Be provided with main control module in the device, it comprises CPU and real-time clock, flash memory, RAM and ISP interface, on main control module, is embedded with A/D module and circuit protection module; The front panel of device is provided with AIO module, ethernet module, UART module, MVB module and working station indicator; The side panel of device is provided with the working power module.

The annexation of each module: main control module is connected with A/D module, MVB module, UART module, AIO, ethernet module, ISP debugging module, circuit protection module and working power module respectively.

The function of above-mentioned each module is following:

The effect of main control module is the work of coordinating between other each modules; The UART module is used to be connected other rolling stock mobile unit with the MVB module, and obtains the master data information of other mobile unit; The effect of AIO module provides the analog end Data Input Interface, direct connection rolling stock equipment room microcomputer external connection terminal cashier's office in a shop, the operational factor of collection rolling stock major part; It is to carry out the simulate data conversion that the A/D module mainly acts on, and is digital signal with the analog signal conversion that collects; The effect of ethernet module is for main control module provides ethernet network interface, through the configuration network address, makes device have the ability of Ethernet data transmitting-receiving; The circuit protection module mainly provides the defencive function of circuit; Mainly comprise the overvoltage and the under-voltage protection of the overload protection and the input voltage of incoming signal; When incoming signal or input voltage did not meet the demands, the circuit protection module can prevent that each module is impaired with other module short circuit; The main effect of ISP debugging module is for main control module debugging interface to be provided; The working power module is used for power supply to each module of whole device being provided.

Advantage of the present invention:

One aspect of the present invention is obtained the status information of different mobile units on the rolling stock in real time through analog input port, RS-485 serial ports and MVB module; For example kilometer post, speed, axle temperature, the parameter of electric machine, and the various sensor signals that collect in the external connection terminal of equipment room microcomputer cabinet etc.; The rolling stock real time monitoring apparatus that through main control module and ethernet module the data that collect is utilized vehicle-mounted ethernet network to send to have Ethernet interface on the other hand; Make the rolling stock real time monitoring apparatus can obtain more comprehensive rolling stock operation conditions; Fault to rolling stock possibly occur is carried out early warning, thereby has ensured the traffic safety of rolling stock.

Description of drawings

Fig. 1 is an integral structure scheme drawing of the present invention.

Fig. 2 is a module connection diagram of the present invention.

Among the figure: main control module 1, A/D module 2, UART module 3, ethernet module 4, ISP debugging module 5, MVB module 6, AIO module 7, circuit protection module 8, working power module 9.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment, technical scheme of the present invention is done further explanation.

Structure of the present invention such as Fig. 1, shown in Figure 2.

Shown in Figure 1, this front panel based on the rolling stock data acquisition unit of ethernet is provided with UART module 3, ethernet module 4, ISP debugging module 5, MVB module 6, AIO module 7.UART module 3 respectively is provided with a DB9 type interface with MVB module 6, and ethernet module 4 is provided with a D type 4 M12 interfaces of encoding, and ISP debugging module 5 adopts 10 core interfaces, and AIO module 7 is provided with one 8 core interface.The front panel of device also is provided with working station indicator.Main control module 1 is set in the device, on main control module, is embedded with A/D module 2 and circuit protection module 8.The side panel of device is provided with working power module 9, and its input voltage is DC 110V.

Shown in Figure 2; A kind of rolling stock data acquisition unit based on ethernet is made up of main control module 1, A/D module 2, UART module 3, ethernet module 4, ISP debugging module 5, MVB module 6, AIO module 7, circuit protection module 8 and working power module 9.

The annexation of each module: main control module 1 is connected with A/D module 2, UART module 3, ethernet module 4, ISP debugging module 5, MVB module 6, AIO module 7, circuit protection module 8 and working power module 9 respectively.

The function of each module is following:

The effect of main control module 1 is the work of coordinating between other each modules; The 2 main effects of A/D module are to carry out the simulate data conversion, are digital signal with the analog signal conversion that collects; UART module 3 is used to be connected other rolling stock mobile unit with MVB module 6, and obtains the master data information of other mobile unit; The effect of ethernet module 4 is for main control module provides ethernet network interface, through the configuration network address, makes device have the ability of Ethernet data transmitting-receiving; The main effect of ISP debugging module 5 is for main control module debugging interface to be provided; The effect of AIO module 7 provides the analog end Data Input Interface, direct connection rolling stock equipment room microcomputer external connection terminal cashier's office in a shop, the operational factor of collection rolling stock major part; Circuit protection module 8 mainly provides the defencive function of circuit; Mainly comprise the overvoltage and the under-voltage protection of the overload protection and the input voltage of incoming signal; When incoming signal or input voltage did not meet the demands, the circuit protection module can prevent that each module is impaired with other module short circuit; The DC 110V power source conversion that working power module 9 is used for input is the needed power supply of each module of whole device.

Embodiment 1

As shown in Figure 2, the CPU of main control module 1 adopts the AT89S52 processor chips of atmel corp, the work of connected each module of co-operative control.AIO module 7 comprises 8 analog quantity input interfaces; Peripheral circuit by ICL7109 chip, MAX308 chip and front-end filtering is formed; The constituent apparatus acquisition module, direct connection rolling stock equipment room microcomputer external connection terminal cashier's office in a shop, the operational factor of collection rolling stock major part.UART module 3 is used known RS-485 serial interface standard communication; By AT89S52 chip integrated UART interface and MAX485E chip; And known RS-485 peripheral circuit composition, with vehicle-mounted other devices communicatings of rolling stock, receive the basic operation information of rolling stock that other equipment collect.Ethernet module 4 is supported the ethernet communication protocol of standard; H1102, H1164 network interface by ENC28J60 network interface chip, Pulse company protect the SACC-DSIV-M12FSD-4CON-L90 M12 ethernet connector of voltage transformer, Phoenix company to form; Be connected with trouble-shooter with rolling stock real-time status monitoring, make rolling stock real-time status monitoring and trouble-shooter can obtain more comprehensive failure-free rolling stock operation conditions with M12 Ethernet interface.MVB module 6 is made up of MVB communication controller MVBC01 and known peripheral circuit, is used for the communication between other mobile units on the rolling stock, receives the basic operation information of rolling stock that other equipment with rail vehicle EBI MVB collect.Working power module 5 is made up of known power circuit, and being used for provides power supply to each module of whole device.

Regularly inquire about AIO module 5, UART module 3 and MVB module 6 obtains the data of gathering on each module and the vehicle bus to main control module 1; And through ethernet module 4 information is sent to vehicle-mounted ethernet network through the simple network protocol encapsulation, for rolling stock real-time status monitoring and the trouble-shooter with Ethernet interface provides comprehensive rolling stock running state and failure message.

Claims (2)

1. rolling stock data acquisition unit based on ethernet; Hereinafter to be referred as device, it is characterized in that device is made up of main control module, ethernet module, UART module, A/D module, AIO module, MVB module, ISP debugging module, circuit protection module and working power module;

Be provided with main control module in the device, it comprises CPU and real-time clock, flash memory, RAM and ISP interface, on main control module, is embedded with A/D module and circuit protection module; The front panel of device is provided with AIO module, ethernet module, UART module, MVB module, ISP debugging module and working station indicator; The side panel of device is provided with the working power module;

The annexation of each module: main control module is connected with A/D module, MVB module, UART module, AIO module, ethernet module, ISP debugging module, circuit protection module and working power module respectively.

2. a kind of rolling stock data acquisition unit based on ethernet according to claim 1 is characterized in that the function of said each module is following:

The effect of main control module is the work of coordinating between other each modules; The UART module is used to be connected other rolling stock mobile unit with the MVB module, and obtains the master data information of other mobile unit; The effect of AIO module provides the analog end Data Input Interface, direct connection rolling stock equipment room microcomputer external connection terminal cashier's office in a shop, the operational factor of collection rolling stock major part; It is to carry out the simulate data conversion that the A/D module mainly acts on, and is digital signal with the analog signal conversion that collects; The effect of ethernet module is for main control module provides ethernet network interface, through the configuration network address, makes device have the ability of Ethernet data transmitting-receiving; The circuit protection module mainly provides the defencive function of circuit; Mainly comprise the overvoltage and the under-voltage protection of the overload protection and the input voltage of incoming signal; When incoming signal or input voltage did not meet the demands, the circuit protection module can prevent that each module is impaired with other module short circuit; The main effect of ISP debugging module is for main control module debugging interface to be provided; The working power module is used for power supply to each module of whole device being provided.

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