CN201148164Y

CN201148164Y - Data acquisition, transmission and processing apparatus for railway CTC system

Info

Publication number: CN201148164Y
Application number: CNU2008200571510U
Authority: CN
Inventors: 何福忠
Original assignee: Casco Signal Ltd
Current assignee: Casco Signal Ltd
Priority date: 2008-04-10
Filing date: 2008-04-10
Publication date: 2008-11-12
Anticipated expiration: 2018-04-10

Abstract

The utility model relates to a data collection, transmission and processing device used in a railway CTC system. The device comprises a mother board which is a circuit board, and the circuit board comprises four asynchronous high speed serial ports, an Ethernet card, an CAN 2.0 standard communication port, a serial port photoelectric isolation circuit, a serial port anti-surge circuit, an anti-surge protection circuit of a network interface and a protection circuit of a +5V working power; a CPU module which integrates an Ethernet interface, a RS32 serial port and a graphics processing unit; a man-machine interaction module comprising a liquid crystal display and a membrane keyboard, and a machine case comprising an inner independent power supply. The CPU module is arranged on the mother board. The mother board is arranged inside the machine case. The man-machine interaction module is arranged outside the machine case body. Comparing with the prior technique, the utility model solves the problems that the external device interfaces in the railway signal system increases day by day, data processing volume becomes larger and larger, message switching becomes networking, intelligent and the requirement of man-machine interaction becomes simple, etc.

Description

A kind of data acquisition transmission and the equipment of handling that is used for railway CTC system

Technical field

The utility model relates to intelligent self-discipline centralized traffic control (CTC) system that disperses of railway, particularly a kind of data acquisition transmission and the equipment of handling (making station control is concentrated the self-discipline machine) that is used for the CTC system.

Background technology

A new generation disperses self-discipline centralized traffic control system (being called for short FZK-CTC), be under the new situation in the railway great-leap-forward development, computer technology, the communication technology, signalling technique is highly developed and the basis of DMIS system successful implementation on, a kind of later-model train traffic control that puts forward and signal control equipment also will bring a kind of new management pattern of organization of transportation efficiently simultaneously.The FZK-CTC of a new generation will carry out to the transportation management pattern of organization that structural rearrangement, function heavily draw, divide the work to reset, the post resets, and can realize that at the intermediate station that does not have passenger-cargo operation train traffic control is unmanned.After the cancellation of the relevant post of intermediate station train traffic control,, management close, operation-related according to specialty directly, rational principle is set, original post, function and mode of operation are adjusted again and are divided.

The FZK-CTC of a new generation has adopted the theory of disperseing self-discipline, promptly finish Core Features such as route gather, collision detection, control output by the station system, therefore, the station scheme Design of FZK-CTC is extremely crucial in whole a new generation disperses to restrain oneself the centralized traffic control system.

It is the station nucleus equipment that a new generation disperses self-discipline centralized traffic control system that making station control is concentrated self-discipline machine (being called for short LiRC), and its hardware belongs to special-purpose industrial grade computer equipment, at aspects such as reliability, data-handling capacities strict guarantee is arranged.The operating system of station self-discipline machine then is the real-time multi-task operating system of specific customization, in the software design, guarantee efficient, succinct, tight, and through complete comprehensive test.

The self-discipline machine scheme of at present domestic several big arterial railway signalling set producer has their own characteristics each, difference is bigger, probably can be divided into following three types: the one, adopt the special-purpose industrial computer scheme of cPCI structure; The 2nd, adopt common desk-top industrial computer scheme; The 3rd, the special machine scheme of employing particular design.The advantage of preceding two kinds of schemes is that available, ready-made resource is abundanter, and domestic industrial computer product is batch manufacturing, and optional leeway is bigger.Owing to directly select ready-made industrial computer hardware platform for use, the input on hardware just can be fewer during product development.So main energy only need be placed in the software development, thereby the single-piece development progress can be than comparatively fast.Simultaneously, when the market situation of system product was very not bright and clear, because hardware development is few, dropped into just fewer early stage self, is convenient to carry out cost control.Certainly, it also is very tangible adopting the shortcoming of special-purpose industrial computer of cPCI and general industrial computer, the one, and the industrial computer product is difficult to satisfy fully the applied environment and the functional requirement of railway signal system.The railway signal system interface device is many, and interface standard is different; The 2nd, signalling set is among the forceful electric power magnetic environment throughout the year, and is very high to electromagnetic compatibility requirements.Therefore, adopt general-duty industrial computer hardware platform scheme, aspect these two of the electromagnetic protections of Interface design and interface, run into great challenge.In addition, telltale is as the important component part of man-machine interaction, and is when adopting general-duty industrial computer hardware platform, because supporting liquid crystal or CRT monitor need take the bigger area of rack usually, very inconvenient when using at the scene.

Under above-mentioned background, the development goal of centralized traffic control self-discipline machine of new generation just seems clearer and more definite: at first be the requirement of wanting to satisfy systemic-function, this is realized by application software system that mainly the self-discipline machine provides hardware interface and operating system platform; The 2nd, at the complex electromagnetic environment that reality is faced, need provide the measure of certain actv. electromagnetic protection; The 3rd, need dexterity human-computer interaction interface easily.

Summary of the invention

The purpose of this utility model is exactly to provide a kind of reliable and stable the data acquisition transmission and the equipment of handling that are used for railway CTC system for the defective that overcomes above-mentioned prior art existence.

The purpose of this utility model can be achieved through the following technical solutions: a kind of data acquisition transmission and the equipment of handling that is used for railway CTC system is characterized in that this equipment comprises:

(1) motherboard, be a circuit card, comprise on this circuit card four asynchronous high-speed serial ports, Ethernet card, one road CAN2.0 standard traffic mouth, serial ports photoelectric isolating circuit, serial ports anti-surge circuit, network interface anti-surge protection circuit and+protective circuit of 5V working power;

(2) CPU module, this CPU module is integrated Ethernet interface, RS32 serial ports and graphic process unit;

(3) human-computer interaction module comprises Liquid Crystal Display (LCD) and membrane keyboard;

(4) cabinet comprises inner independent current source;

Described CPU module is located on the motherboard, and described motherboard is located in the cabinet, and described human-computer interaction module is located at the cabinet casing outside.

But the RS232/422/485 wire jumper is selected in described four asynchronous high-speed serial ports.

Described motherboard also comprises LED indicating circuit, the power supply circuit of liquid crystal display of additional function.

Compare problem such as the utility model has solved that interface is increasing in the railway signal system, data processing amount increases day by day, information exchange networkization and intellectuality, man-machine interaction requirement are simple and direct with original technology.

Description of drawings

Fig. 1 is a kind of data acquisition transmission of railway CTC system and structural representation of the equipment of handling of being used for of the utility model;

Fig. 2 is a kind of data acquisition transmission of railway CTC system and the human-computer interaction module and thin film circuit scheme drawing of the equipment of handling of being used for of the utility model;

Fig. 3 is a kind of data acquisition transmission of railway CTC system and structural representation of the motherboard NPCMB of the equipment of handling of being used for of the utility model.

The specific embodiment

Embodiment 1

As shown in Figure 1, a kind of data acquisition transmission and the equipment of handling that is used for railway CTC system of the utility model, this equipment mainly is made up of following components: (1) motherboard 2, it is a custom-designed circuit card, isa bus by the PC104 structure on this piece circuit card is expanded, designed and comprised four asynchronous high-speed serial ports (but the RS232/422/485 wire jumper is selected), compatible Ethernet card (10M) of NE2000 and one road CAN2.0 standard traffic mouth, in order to improve the antijamming capability of circuit card, increased corresponding serial ports photoelectric isolating circuit, the serial ports anti-surge circuit, the anti-surge protection circuit of network interface and+protective circuit of 5V working power etc., also have the LED indicating circuit of additional function in addition, power supply circuit of liquid crystal display etc.; (2) based on the CPU module 3 of PC104 structure, this CPU module plate integrated 10/100M Base-T Ethernet interface and high performance graphics treater.Basic function comprises: the 64-bit microprocessor of GEODE 300M X86 compatibility, board memory 128M SDRAM, SVGA, LCD flat panel display interface device, support PC/AT keyboard, PS/2 mouse, two USB, floppy drive, EIDE hard disk and CF cards, in the lump two serial connections mouthful, at plate 10/100M BaseT Ethernet interface, real-time clock (power-down protection is arranged) etc.; (3) human-computer interaction module 4LCD LCDs is the information demonstration and the man-machine interaction center of entire equipment, show by software programming and LCD, can offer the user to a large amount of operation real time informations of system with figure, literal or digital form, the operation of combination film keyboard realizes the actv. man-machine interaction; (4) cabinet 1 is used to protect the in-to-in circuit card, in order to avoid be subjected to such as outer damages such as static, collisions, the independent current source that includes can be accomplished between the equipment effective separation isolator, surge protection circuits such as in-to-in serial ports, network interface realize that by housing casing connects the earth, also are the good carriers of interface (as DB9) on man-machine interface (LCD Liquid Crystal Display (LCD) and membrane keyboard) and the rear panel; Software platform adopts the flush type LINUX operating system of custom-made, by suitably reducing, forms size, operating system special-purpose, that simplify about an about 50M on Free Software R EDHAT 7.2 version bases.The graphics driver engine of human-computer interaction interface is selected homemade free software MiniGUI for use.By writing the mode of mirror image, this operating system is write on the electric board (DiskOnChip).After the device power-up, the mode that the user can be by FTP is imported application program or configuration file in the electric board operating system, also can operate or control equipment or application program by the mode of TELNET.

Cabinet 1 machine shell adopts aluminium alloy box, surface to do melanism and handles, and adopts the requirement of putting on the shelf of whole detachable modular mode, size conforms standard industry rack on the structure.

As shown in Figure 2, the front end of complete machine is human-computer interaction interface (TFT-LCD Liquid Crystal Display (LCD) and a thin film circuit etc.), the limit that keeps left be the TFT-LCD Liquid Crystal Display (LCD) of a 320*240 dot matrix, the centre is a membrane keypad, the right is the LED display lamp.Membrane keypad is connected with host circuit board by printed wire with the LED display lamp, realizes the input of manual command and the output of machine information under the cooperation of application software.

Host circuit is made up of two parts: based on the CPU module 3 and the motherboard NPCMB of PC104 structure.CPU module 3 is selected general-duty PC104 product for use, in order to adapt to the driving needs of 320*240TFT Liquid Crystal Display (LCD), has done some special processings on BIOS.This CPU module 3 plate integrated 10/100MBase-T Ethernet interface and high performance graphics treater.Basic function comprises: the 64-bit microprocessor of GEODE 300M X86 compatibility, board memory 128M SDRAM, SVGA, LCD flat panel display interface device, support PC/AT keyboard, PS/2 mouse, two USB, floppy drive, EIDE hard disk and electric board DiskOnChip, in the lump two serial connections mouthful, at plate 10/100M BaseT Ethernet interface, real-time clock (power-down protection is arranged) etc.

As shown in Figure 3; motherboard NPCMB; isa bus extended mode by PC 104; four asynchronous high-speed serial ports (RS232/422/485 can wire jumper select) have been designed; the compatible Ethernet card (10M) of NE2000; one road CAN2.0 interface etc.; in order to realize highly reliable anti-electromagnetic interference; in corresponding Position Design the serial ports photoelectric isolating circuit; the serial ports anti-surge circuit; the protective circuit of+5V working power; two network interface (10M; a 10/100M) surge protection circuit etc.; design simultaneously has the membrane keyboard interface circuit of allocation function; the LED indicating circuit; power supply circuit of liquid crystal display etc.; the rear socket of motherboard NPCMB adopts the DIN41612 of two male 96 pins, and all external interface circuits of circuit card all pick out by wiring mode from these two males.

Operating system in the main frame is selected the free software (SuSE) Linux OS for use, on the basis of Redhat 7.2 versions, reduce through suitable, form about an about 50M operating system of simplifying of size, the EXT3 file system can prevent the operating system collapse when system's sudden power.The graphics engine of human-computer interaction interface is selected homemade free software MiniGUI for use.By the mode of writing mirror image the good operating system of customization is write on the electric board (DiskOnChip).After the device power-up, the user can be imported application program or configuration file in the electric board operating system by the FTP mode, also can be by after the TELNET mode register system equipment or application program being operated or controlled.

Claims

1. data acquisition transmission and the equipment of handling that is used for railway CTC system is characterized in that this equipment comprises:

(4) cabinet comprises inner independent current source;

2. a kind of data acquisition transmission and the equipment of handling that is used for railway CTC system according to claim 1 it is characterized in that, but the RS232/422/485 wire jumper selected in described four asynchronous high-speed serial ports.

3. a kind of data acquisition transmission and the equipment of handling that is used for railway CTC system according to claim 1 is characterized in that described motherboard also comprises LED indicating circuit, the power supply circuit of liquid crystal display of additional function.