CN2481599Y - Failure oscilloscope radio calling and alarm device of railway train - Google Patents

Abstract

The utility model provides a failure oscilloscope radio calling and alarm device of railway train, comprising a data collecting circuit, a failure treatment circuit and a displaying circuit, wherein the failure treatment circuit is a single chip microcomputer or a computer processing circuit, the data collecting circuit is connected with an input end of the failure processing circuit via an A/D converting circuit, and an output end is connected with an alarming circuit and an IC card interface, and the real time monitor to the main air duct of train, the train duct, the A phase current, the B phase current, the C phase current, the supply voltage, the speed, etc is achieved at the same time, and radio paging alarming is launched when failure occurs, so the personnel concerned on the vehicle can receive the alarming information and remove the failure.

Description

Railroad train failure wave-recording radio call warning device

The utility model is a kind of device of the railway transportation train being monitored, handles, recorded ripple and fault radio call warning in real time.

Railway is the important vehicle of China, is undertaking nearly 90% the passenger and the transportation volume of goods, and thousands of passenger takes trip.How to guarantee the safe operation of train, be the responsibility of the railway department, for guaranteeing the operation of train " safe, comfortable, efficient ", most of in recent years train has all been installed warning device, but there are following shortcomings in existing warning device: monitoring channel is few, can only monitor a fault mostly; Can not monitor in real time; Type of alarm is single; Can not record trouble information.Because the existence of these deficiencies can not in time be found some faults, even can not be found, and become the potential safety hazard in the train operation, in addition accidents caused thus, bring threat for passenger's life, national wealth is sustained a loss.

The purpose of this utility model is, the iron train fault record ripple radio call warning device that provides a kind of and can monitor in real time the multinomial technical parameter of operating train, break down back radio call warning, failure wave-recording to put on record for fault.

Railroad train failure wave-recording radio call warning device, comprise data acquisition circuit, fault logic circuits and fault display circuit, it is characterized in that: described fault logic circuits is micro controller system or computer processing circuit, data acquisition circuit is connected to the input end of micro controller system or computer processing circuit through the A/D translation circuit, and the output interface of micro controller system or computing machine connects a failure alarm circuit and the IC-card interface circuit in order to IC-card record ripple respectively.

The utility model has realized that multiple faults monitors in real time, simultaneously train air main, train pipe, A phase current, B phase current, C phase current, power line voltage, speed etc. are monitored in real time, carrying out radio call when breaking down reports to the police, make train conductor or technical personnel can both receive alarm message Anywhere onboard, in time trouble-shooting.When breaking down, display routine shows the malfunction monitoring interface automatically, checks for technical personnel, and driving malfunction prompting LCD (redness) flashes simultaneously.Program is also carried out failure wave-recording with IC-card simultaneously, delivers to engineering department's analysis of failure for behind the train arrival, takes corresponding maintenance measures, also can put on record for fault.Man-machine interaction is set, can carries out fault monitoring and parameter setting, parameter setting can number be provided with system data, threshold values, call, and the user can be provided with correlation parameter according to the actual conditions of train, has so just increased the comformability of device to different trains.Behind train arrival, analysis of failure need be taken off IC-card if desired, reads the failure message of storing in the IC-card by card reader, and carries out failure analysis by software programming, comprises drawing fault waveform, trouble diagnosing and fault localization etc.If use Single Chip Microcomputer (SCM) system under the state of no worker monitor, to move, reduced the input of manpower.

Fig. 1 is the utility model functional block diagram;

Fig. 2 is the embodiment electrical schematic diagram.

Embodiment:

Railroad train failure wave-recording radio call warning device, comprise data acquisition circuit, fault logic circuits and fault display circuit, described fault logic circuits is micro controller system or computer processing circuit, its input end is connected to data acquisition circuit through the A/D translation circuit, and the output interface of micro controller system or computing machine also connects a failure alarm circuit and the IC-card interface circuit in order to IC-card record ripple.Described failure alarm circuit is a wireless transmission paging circuit.The present embodiment sensor uses through filtering and protective circuit input the quantitative data input passage of the air main pressure in the train operation, train tube pressure, A phase current, B phase current, C phase current, power line voltage information acquisition auto levelizer for micro controller system.Velocity information is input on the input port of device through being transformed to current signal after the counting machine collection; current signal is become the voltage signal of 0-5V through sample resistance; obtain the pulsation-free voltage signal through capacitance-resistance filter again; voltage signal is input to the A/D device and carries out the A/D conversion after the protection of transition diode limiting, obtain required digital signal.Single Chip Microcomputer (SCM) system or department of computer science's system program have judged whether fault, if fault is arranged, then warning device is finished following work: (1) sends to emitter with fault alarm information (being stored among the EPROM) by serial interface circuit, emitter is transformed to the POSAG sign indicating number automatically with the information of receiving, goes out through transmission antennas transmit.Like this, train conductor or inspection car personnel just can receive the failure message that emitter is sent by beeper; (2) failure message is recorded in the Wave data of fault (time ask and parameter value) on the IC-card by the IC-card interface circuit; (3) warning indicator lamp flicker, the display interface of LCD automatically switches to the fault monitoring picture, for the train conductor or pick up the car personnel and check.Carry out data acquisition next time and judgement then.

This device provides downtime (comprising year, month, day, hour, min, second) by external clock chip (having the power-off protection unit), and shows the current time in real time by LCD display.The power down protection unit of chip is used for depositing some important parameters, as alarming threshold value, notify from a phone call number, alarm times etc.Device receives the actuation of keys information of operating personal by keyboard interface circuit.The information that display interface circuit sends micro controller system is presented on the LCD display after treatment.Telltale is mainly used to the display system Control-Menu, comprises that parameter setup menu, fault check menu, in real time display menu and work at present time etc.

Introduce the principle of work of device below in conjunction with the electrical schematic diagram of device, because air main pressure, train tube pressure, A phase current, B phase current, C phase current, power line voltage information collecting method in the train operation are identical, so we are example with the data acquisition and the warning of the air main pressure acquisition passage (circuit in the frame of broken lines 1 among Fig. 2) of train, and the principle of work of device is described.The pressure sensor that with model is JYB-KO-KAG is the input end that the current signal of 4-20mA is input to device with the air main pressure acquisition of train, and current signal becomes the voltage signal of 0-5V through R6, and voltage signal is through R ₁₄And C ₈Filtering inference elimination and fluctuation, diode DA7, DA8 are limited in voltage signal in the 0-5V scope, the protection micro controller system.The steady safe voltage signal that will obtain at last is input on the AD mouth of micro controller system 80C552, carries out the A/D conversion by software control, is digital signal with analog signal conversion.Shield the needs of some passage in addition for satisfied customer requirement in some cases, be provided with the channel mask circuit, both circuit in the frame of broken lines in the schematic diagram 2, SWDIP-8 is a multiple way switch, multiple way switch is corresponding with air main pressure acquisition passage, train tube pressure acquisition channel, A phase current acquisition channel, B phase current acquisition channel, C phase current acquisition channel, power line voltage information acquisition passage, speed acquisition passage in the train operation respectively, as long as with corresponding switch opens in the multiple way switch, just corresponding channel mask can be fallen.

System software converses the pressure of train air main according to the voltage signal of input, and judges whether current pressure is normal.If normal, then just with the current pressure data display on display lcd.We can see that micro controller system is to give telltale by parallel data/address bus transmission display data, receives display data by control line WR, RD, select lines A15 control telltale from Fig. 2.The TM12864A Liquid Crystal Display (LCD) that the telltale of warning device selects for use carefree horse company to produce, this LCD is the 128*64 lattice type LCD, he has been integrated into all controllers, scanning circuit and display random access memory at the back side of liquid crystal display.The dot array data that shows character and Chinese character extracts by Zemo HER02000.

If pressure data mal, judge then which kind of fault appears in air main, and carry out following warning work: it is HY-2601A among Fig. 2 that data such as (1), the pressure data with air main, failure mode, downtime send to emitter by serial port, emitter sends to pager with these alarm messages, carry out radio call and report to the police, aerotron BG2 drives light-emitting diode D simultaneously ₂Luminous warning.Emitter is the paging transmitter that the permanent far away Electronics Co., Ltd. in Shenyang produces, and present embodiment emitter model is HY-2601A, and emitter adopts the RS232 interface, can be directly and the serial-port communication of micro controller system 80C552.Pager is changed crystal oscillator with railway system's general-duty pager and is obtained.

(2), by the IC-card interface circuit will be stored in the stack area fault before and after the pressure data of an end time record in the IC-card AT45D041.AT45D041 is the large-capacity memory card that atmel corp produces, and its storage medium is the FLASH memory device of low voltage, serial interface (SPI).Aerotron BG1 among Fig. 2 is used for detecting whether IC-card is arranged.Behind the train arrival, analysis of failure need be taken off IC-card if desired, reads the failure message of storing in the IC-card by card reader, and carries out failure analysis by software programming, comprises drawing fault waveform, trouble diagnosing and fault localization etc.

System time is provided by clock chip DS12887.DS12887 is connected with micro controller system by parallel data/address bus, CPU can visit external RAM way access it.DS12887 is the clock chip of American Dallas company.DS12887 adopts 24 pin dual-inline package (DIP), crystal oscillator, oscillating circuit, charge circuit and the chargeable lithium cell etc. of chip is encapsulated in together the integrated chip of a thickening of top composition of chip.Its charge circuit charges automatically during power on circuitry, and abundance once electricity can be for chip operation half a year, can guarantee during normal operation that data can not lose within 10 years.It has complete clock, alarm clock reaches calendar function in 2100 and can select 12 hours systems or the timing of 24 hours systems; the morning, afternoon, week, fast time operation are arranged; functions such as leap year automatic compensation have the low-power consumption RAM that 14 clock-control registers and 114bit use as power down protection.Can satisfy the standby requirement that reaches 24 hours most.

System software is stored among the EPROM (27128), and EPROM is by parallel expansion bus mouth P2 mouth, P0 mouth and 80C552 bonded assembly.Wherein the P2 mouth is as the high address bus.And the P0 mouth is low order address bus and multiplexed data bus, so adopt time-sharing format when transmitting, the data of output least-significant byte address, and then transmission earlier.But the address must remain unchanged when external memory is carried out read-write operation, and this just need select for use address latch to come latch address.Address latch chip commonly used at present has: 74LS273,74LS373,8282,74LS573 etc.Here we come latch address with 74LS573.

According to the requirement of device man-machine interaction, need the design keyboard, be used for operating Control-Menu and input parameter.Based on the needs of system software, need four buttons of design altogether, comprise reset key, Menu key, function key F1 and F2.According to the product styling requirement, button is designed the touch key-press that there is sense of touch the position, both guaranteed the reliability and the leak tightness of button, elegant in appearance again.

According to the requirement of each device of system, related to altogether+12V ,+24V ,+power line voltage of 5V.Wherein ,+voltage of 12V powers to projector; + 24V power supply is for the sensor power supply; + 12V ,+each device power supply on 5V (VCC) power circuit board.Because the current stability that commercially available power module provides is not fine, can produce little fluctuation with electrical network, thus should add capacitor filtering, to guarantee to provide comparatively stable, accurate power supply.

In addition, because the particularity of speed sensor, speed signal can not be gathered with said method.We can see the acquisition method of speed signal in Fig. 2, speed sensor SP-20 is continuous sinusoidal waveform with the speed signal collection, M331 transfers sinusoidal waveform to square wave with comparator C, be input to the interrupt counter mouth of micro controller system 80C552, system software goes out the speed of train according to the frequency computation part of square wave.

Gather the current sensor of current signal and can use the KP800A type, voltage sensor can be used the KV100A type.Diode D ₁It is power light.74LS245,74LS573 are interface circuits.

Consider that the vibration in the train operation is bigger, microcomputer system can not be in this environment reliability service, in addition, microcomputer system needs the special messenger to monitor, safeguard that cost performance is lower, drops into bigger.Therefore present embodiment has been selected Single Chip Microcomputer (SCM) system for use.Also can do fault logic circuits with computer system, its principle is the same.

Claims (2)

1, a kind of railroad train failure wave-recording radio call warning device, comprise data acquisition circuit, fault logic circuits and fault display circuit, it is characterized in that: described fault logic circuits is micro controller system or computer processing circuit, data acquisition circuit is connected to the input end of micro controller system or computer processing circuit through the A/D translation circuit, and the output interface of micro controller system or computing machine connects a failure alarm circuit and an IC-card interface circuit respectively.

2, railroad train failure wave-recording radio call warning device according to claim 1, it is characterized in that: described failure alarm circuit is a wireless transmission paging circuit.

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