CN1285479C - Radio locomotive signal control device carried by locomotive - Google Patents
Radio locomotive signal control device carried by locomotive Download PDFInfo
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Abstract
The present invention discloses a locomotive-carried wireless locomotive signal control device, which comprises a locomotive-carried host machine, a signal display mechanism, a locomotive-carried inquiring device, a GPS satellite positioning device and a data transceiver, wherein the locomotive-carried host machine is connected with the data transceiver and the GPS satellite positioning device through RS-232 interfaces and is connected with the locomotive-carried inquiring device through an RS-485 interface. The signal display mechanism is connected with the locomotive-carried host machine through a cable, and a CPU minimal system circuit, a watch dog/reset circuit, a real time clock circuit, a display control circuit, a lighting circuit, a communication interface circuit, a data storage circuit and a data dump circuit are arranged in the locomotive-carried host machine. The present invention is used for forming a wireless locomotive signal system, the system can realize two-way wireless information communication among station control devices and locomotives, and the running automation levels of trains of China are greatly increased.
Description
Technical field
The present invention relates to a kind of control convenience, particularly a kind of installation is used to realize the signal control device of cab signal wireless penetration ON TRAINS, belongs to the railway signal technology field.
Background technology
China existing cab signal system mainly be based upon on the ground rail circuit base continous way or near the continous way signal system, be called the general-purpose locomotive signal system again.This system is sent to terrestrial information on the locomotive by the information in the induction track circuit, the transmission of its information is unidirectional carrying out, track circuit can be subjected to the influence of rail length, ballast resistance, weather and surrounding environment in addition, the speed of its data transmission is slow, and reliability can not get guaranteeing, can cause adverse influence to the safe operation of train.In addition, this system needs a large amount of outdoor facility and cable, and the working out of manual maintenance is quite big.Because the existence of these shortcomings in high speed rail system and abominable southwestern mountain area, the Qinghai-Tibet Platean of living condition, utilizes traditional track circuit to transmit cab signal and can not satisfy actual needs.
Universal day by day along with modern communication technology, wireless communication technology has obtained using in railway signal system, No. 89101269, Chinese patent " the complete compatible railway wireless dispatching system " that disclose for example, " a kind of railway running control system " that " control station of railway wireless system and this system " that discloses for No. 96102961 and application for a patent for invention disclose for No. 01128589.Wherein preceding two patents solve is wireless communication problems in the cab signal system, and the 3rd patent application solves the command scheduling problem in the cab signal system.They have only utilized the speech transmissions in the wireless communication technology, almost do not relate to data transmission, more do not relate to adopting wireless mode transmission railroad vehicle signaling data.
In addition, it is a kind of based on wireless railway signal system RETB that Siemens also provides, and it is primarily aimed at and only is provided with several simple stations, the magnitude of traffic flow be in, low monorail traffic, a kind of simple, economic solution is provided.Its improvement technically is mainly reflected in wireless technology and train-staff is combined, by being integrated into the train-staff treater continuous monitoring train operation in the interlocking equipment, for train provides comprehensive protection.
Summary of the invention
The object of the present invention is to provide a kind of later-model onboard wireless cab signal control setup.This device is by the autonomous stand-alone development of the applicant, and it is installed on the locomotive, with " wireless cab signal system station control setup " (number of patent application: 200320100237.4) constitute wireless cab signal system of the other exploitation of the applicant.This system can realize the two-way communication between station control setup and the locomotive.
For realizing above-mentioned goal of the invention, the present invention adopts following technical scheme:
A kind of onboard wireless cab signal control setup is used to constitute wireless cab signal system, it is characterized in that:
Described onboard wireless cab signal control setup comprises on-vehicle host, signal aspect and indication mechanism, vehicle-mounted requestor, gps satellite fixing aid and data radio station, wherein said on-vehicle host connects described data radio station and described gps satellite fixing aid by RS-232 interface, connect described vehicle-mounted requestor by the RS-485 interface, described signal aspect and indication mechanism links to each other with described on-vehicle host by cable;
Have CPU minimum system circuit, house dog/reset circuit, real time clock circuit, display control circuit, lamp circuit, communication interface circuit, data storage circuitry and data dump circuit in the described on-vehicle host;
Described house dog/reset circuit, data storage circuitry and data dump circuit directly link to each other with described CPU minimum system circuit, and described real time clock circuit, display control circuit, lamp circuit and communication interface circuit link to each other with described CPU minimum system circuit by system bus.
Onboard wireless cab signal control setup of the present invention is used to realize wireless cab signal system.This system adopts wireless channel to replace existing track circuit, can realize the bidirectional data transfers between locomotive and the ground, and data rate is fast, on performance considerably beyond present general-purpose locomotive signal system.Use this wireless cab signal system can improve the automatization level of China's train operation greatly.
Description of drawings
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the composition frame chart of this onboard wireless cab signal control setup.
Fig. 2 is the modular configuration diagram of onboard wireless cab signal main control system.
Fig. 3 is the functional block diagram of on-vehicle host.
Fig. 4 is the core cpu on the motherboard in the on-vehicle host, input/output interface, the schematic circuit diagram of data storage and data dump part.
Fig. 5 is the schematic circuit diagram of the part of the communication interface circuit on the motherboard in the on-vehicle host.
Fig. 6 is the schematic circuit diagram of the output driving circuit part of lighting a lamp on the motherboard in the on-vehicle host.
Fig. 7 is the schematic diagram of light a lamp the output feedback check circuit and the power control circuit of lighting a lamp on the motherboard in the on-vehicle host.
Fig. 8 is the schematic circuit diagram of display control board 1 in the on-vehicle host.
Fig. 9 is the schematic circuit diagram of display panel 1 in the on-vehicle host.
Figure 10 is the schematic circuit diagram of display panel 2 in the on-vehicle host.
Figure 11 is the main program flow chart of onboard wireless cab signal control setup.
Figure 12-1 and Figure 12-2 is the program flow diagram of on-vehicle host and station telecommunication.
Figure 13-1 and Figure 13-2 program flow diagram of communicating by letter with vehicle-mounted requestor for on-vehicle host.
Figure 14 carries out the program flow diagram of internal data dump work for on-vehicle host.
Figure 15 is the block diagram of the wireless cab signal system of this onboard wireless of use cab signal control setup.
The specific embodiment
As shown in Figure 1, this onboard wireless cab signal control setup is installed in the Electric Appliance Cabinet of locomotive, comprise on-vehicle host, vehicle-mounted requestor, be inserted in GPS GPS device and data radio station in the mainframe box, indication mechanism is arranged separately in inside and outside the driver's cab, links to each other with on-vehicle host by cable.On-vehicle host is connected with GPS global positioning satellite equipment with data radio station by RS-232 interface, is connected with vehicle-mounted requestor by the RS-485 interface.On-vehicle host receives row control signal from the station control setup by data radio station, receive successfully after, the loopback confirmation.On-vehicle host also receives simultaneously from the information of ground transponder with from the information of gps system, and the information such as train speed, position, responser numbering and mobile unit state that obtain are passed to the station control setup.In this cab signal control setup, data radio station has well-determined mailing address, can guarantee that like this signal of each locomotive can not obscured by the station control setup, avoids having an accident.
Above-mentioned vehicle-mounted requestor, GPS global positioning satellite equipment and data radio station all are existing mature equipment, are very common equipment in railway signal system as vehicle-mounted requestor, and data radio station can adopt commercial MDS4710C radio station, as prior art, just do not given unnecessary details at this.
On-vehicle host is a nucleus equipment of the present invention, and it has data handing concurrently, data communication and data display function.Fig. 2 is the modular configuration diagram of on-vehicle host.As shown in the figure, it is by motherboard, display control board 1, display control board 2, power panel, GPS plate, display panel 1 and display panel 2 formations such as (join by 34 core flat cables and display control board 1 and display control board 2 respectively, do not draw among the figure).
The effect of motherboard mainly contains: communicate by letter with vehicle-mounted requestor (1), receives the responser information of train process; (2) communicate by letter with vehicle radio station, receive the locomotive signal information that the radio locomotive signal ground control unit sends, and the position of train, speed, signal receipt, responser numbering, mobile unit state etc. are sent to ground control unit; (3) with the GPS board communications, information such as the train speed that reception GPS plate is sent here, position, and the responser information that will pass through notice GPS plate are so that carry out the adjustment of data.(4) data recording function; (5) data dump function;
The main effect of display control board 1 is: receive the display data that motherboard is sent here by data bus, after treatment, show the current time by charactron on display panel 1 and display panel 2, engine number, Station XXX, responser numbering, information such as the position of train, speed; Show various fault alarm information by LED.
The radical function of power panel is that the 110V direct supply on the locomotive is become direct current 48V and direct current 5V power supply; Wherein the 48V power supply offers lamp circuit, and the 5V power supply is as system power supply.
The radical function of GPS plate is to receive satellite positioning information, after handling through map match, sends train position, speed and time information to motherboard, and carries out mileage according to the responser information that motherboard is sent here and proofread and correct.The GPS plate belongs to independent system, does not repeat them here.
Fig. 3 is the functional block diagram of on-vehicle host, and it is by the CPU minimum system, house dog/reset circuit, real time clock circuit, display control circuit, lamp circuit, communication interface circuit, data storage circuitry, compositions such as data dump circuit.Cpu system is taken on the control task of whole on-vehicle host, and the CPU of employing is 8 micro controller system W77E58 of High Performance.Real time clock circuit shows that for data logging, information it is DS12C887 that temporal information, main chip are provided.The information that display control circuit is used to control on the on-vehicle host display panel shows, comprises the time, engine number, and Station XXX, the responser numbering, train position, train speed, status informations etc., its main chip are by keyboard/display chip 8279; The effect of lamp circuit is after the locomotive signal information process that CPU sends is latched amplification, the driving relay of lighting a lamp, thereby locomotive signal information is presented in the signal aspect and indication mechanism in the driver's cab, in addition, lamp circuit also is responsible for gathering the output of the relay of lighting a lamp, by sending CPU back to after the photoelectricity isolation, whether correct so that judgement is lit a lamp.The control of power supply of lighting a lamp also is to be finished by lamp circuit.Lamp circuit is mainly by 2 data latches 74HC373,2 driving amplifier MC1413,8 DS2Y-S-DC5V polar stick relays, 3 photoelectrical coupler TLP521-4,1 formation such as photoelectric switch AQV210EH.Data storage circuitry is mainly finished data recording function, and recorded content comprises: receive signal that station control sends and content and the time that sends the receipt signal; Train passes through a station, the time of responser; The service direction of train (on/descending); The thigh Taoist monastic name and the time at station is stopped or passed through to train; Cab signal transfer time; Situations such as breakdown of equipment record and equipment sound and light alarm, the main chip of this circuit is 2 AT45D161, total memory capacity can reach the 4M byte.The effect of data dump circuit is that the data dump of record is come out, and is handled and is analyzed by independent data processing software, and this circuit has adopted IC-card, and its main control chip is AT45D041, and capacity is the 512K byte.Communication interface circuit provides three road serial communication interfaces, i.e. the interface in on-vehicle host and radio station, and the interface of the interface of on-vehicle host and vehicle-mounted requestor and on-vehicle host and GPS, its main chip is two asynchronous serial communication interface chip 82C51.The input/output interface circuit has adopted a slice 82C55, and 16 tunnel outputs and 8 tunnel inputs are provided.
Fig. 4 to Fig. 7 is the schematic circuit diagram of motherboard.Fig. 4 is the schematic circuit diagram of core cpu, address decoding, input/output interface, clock circuit, data storage and data dump part on the motherboard.Fig. 5 is the schematic circuit diagram of the communication interface part on the motherboard.Fig. 6 is the schematic circuit diagram of the output driving circuit part of lighting a lamp on the motherboard.Fig. 7 is the schematic diagram of light a lamp the output feedback check circuit and the power control circuit of lighting a lamp on the motherboard.
In circuit shown in Figure 4, the core cpu part is by cpu chip W77E58 (N9), crystal oscillator (JT1), address latch 74HC373 (N3), bus driver 74HC245 (N10), program store 29EE010 (N6), data memory KM681000 (N7), the watchdog chip MAX705 compositions such as (N4) of holding concurrently resets.Wherein W77E58 is a performance-oriented and 8 compatible CMOS microprocessors of MCS-51 series, and its principal feature is: 1k SRAM in the 32k FLASH EPROM in the sheet, sheet; 256 byte RAM in the sheet, two full duplex asynchronous serial communication interface UART, programmable peripheral access speed, average instruction execution speed is 2.5 times of standard 8051 etc.On motherboard, P0 mouth and the P2 mouth of W77E58 work in the data/address bus multiplex mode.As the least-significant byte A0-A7 of address bus, P20-P27 provides the most-significant byte A8-A15 of address bus to P00～P07 after 74HC373 latchs; In addition, P00～P07 of W77E58 is after 74HC245 drives, as the data bus D0-D7 of system; MAX705 is a double chip that resets of house dog, it is used for the mode of operation of monitoring power voltage and microcontroller, the RESET pin becomes high level actv. RSTH signal after Schmidt trigger 74HC14 is reverse, insert the RESET pin of W77E58, this RSTH signal also is other chip simultaneously, comprise 82C55,82C51 etc. provide reset signal.The WDI pin of MAX705 connects the P1.0 pin of W77E58, and when program was normally moved, W77E58 (was not more than 1.6s) at regular intervals and sends a negative going pulse by the P1.0 pin to MAX705, so that remove the counting of MAX705.Behind program fleet, MAX705 can produce a reset signal because counting overflows, and makes system's restoring running to normal condition.(N1 N2) constitutes address decoding circuitry by two generic logic array chip GAL16V8D.High eight-bit A wire A8-A15 is after N1 decoding, be clock chip DS12C887 (CS_CLK) input/output interface chip 8255 (CS_8255), asynchronous communication serial interface chip 82C51 (CS_8251, CS_82511), data RAM chip KM681000 (CS_RAM) etc. provides chip selection signal.N2 is used for being reallocated in the road address that N1 distributes, and is the output buffers chip 74HC373 (being numbered A2) that lights a lamp, and the output feedback of lighting a lamp is checked cache chip 74HC373 (being numbered A1), and liquid crystal debugging interface (CS_LCD) etc. provides chip selection signal.(N8 N15) constitutes data storage circuitry, and AT45D161 adopts serial interface, and memory capacity is the 2M byte, and the separate double that to carry two capacity be 512 bytes is to the data buffer by two AT45D161.The serial clock signal SCK of N8 and N15, input serial data signal SI and serial data output signal S0 are respectively by the P1.5 of W77E58, and P1.6 and P1.7 provide, and chip selection signal CS_FLASH1, CS_FLASH2 is then provided by I/O chip 8255; The data dump circuit has adopted IC-card (N16), and its interface chip is AT45D041, and capacity is the 4M position; Real time clock circuit has adopted a slice DS12C887 (N11); But input/output interface adopts a slice programmable interface chip 82C55 (U25), and its A mouth and C mouth are defined as delivery port.Wherein, the A mouth is exported 8 road signals, and 8 LED that are used on the main control system plate panel show; The output signal of C mouth is respectively the reset signal IC_RST of IC-card, photoelectrical coupler punctures check control signal QCTRL, power supply photoelectric switch control signal 50_CTRL lights a lamp, buzzer phone control signal BZ_ON, the chip selection signal CS_FLASH1 of storage chip N8 and N15, the DE that transmits control signal of CS_FLASH2 and RS485 interface chip MAX1480B; And the B mouth is defined as input port, be used to receive train operation/signals such as down direction signal SX.
Shown in Figure 5 is the schematic diagram of motherboard communication interface circuit part, and the effect of this circuit mainly is to provide three serial communication interfaces.The RS232 interface that communicates between on-vehicle host and the vehicle radio station is made up of serial ports 0 (P30/RXD, P31/TXD pin) and the chip MAX232 (U20) of W77E58.MAX232 is a two-way driving/receptor, and inside comprises capacitive based voltage generator, the 5V power source conversion can be become meet the voltage class of EIA/TIA-232-E.The RS485 communication interface of on-vehicle host and vehicle-mounted requestor is by 82C51 (U2), 74HC02 (U4), crystal oscillator (JT2), 74HC4040 (U8), double contact pin (RP2), MAX1480 formations such as (U6).82C51 is an asynchronous serial communication interface chip able to programme, and its TxRDY pin and RxRDY pin meet a joint denial gate 74HC02, to W77E58 output interrupt signal; JT2 is that frequency is the horizontal crystal oscillator of 1.2288M, for 82C51 provides clock signal.74HC4040 is the binary counting chip, and it is by carrying out frequency division with the frequency of JT2, from Q4～corresponding 9600bps of Q7 pin output difference, 4800bps, 2400bps, the traffic rate of 1200bps.RP2 is double contact pin, can above-mentioned four kinds of different baud rates be set by wire jumper.MAX1480 carries the RS485 interface chip that photoelectricity is isolated; elements such as built-in high-frequency transformer, optocoupler; high voltage transient can be transferred on the electricity isolated layer in the isolating interface; because the high insulation resistance of isolation layer; can not produce the surge current of infringement property, play the effect of protection RS485 interface.The RS232 communication interface that communicates with the GPS plate is by 8251 (U3), U4, JT2, U8, formations such as RP1.RP1 is double contact pin, can above-mentioned four kinds of different baud rates be set by wire jumper.Because the GPS plate directly is inserted in the mainframe box, disturb lessly, so there is no need to adopt MAX232 to carry out level conversion.The serial ports 1 of W77E58 (P12/RXD1, P13/TXD1 pin) is used for debugging interface.
Fig. 6 is for the schematic diagram of the output driving circuit part of lighting a lamp on the motherboard, and mainly by a slice data latches 74HC373 (A2), (A5, A6), 8 DS2Y-S-DC5V polar stick relays (RL1～8) constitute two reverse drive amplifier MC1413.Principle of work is: the some modulating signal from W77E58 is delivered to data latches 74HC373 through data bus, after latching, deliver to reverse drive amplifier MC1413, carry out being used to drive back level corresponding D S2Y-S-DC5V polar stick relay after electric current amplifies, make it to pick up, thereby light corresponding signal lamp in the signal aspect and indication mechanism.
Fig. 7 is the schematic diagram of light a lamp the output feedback check circuit and the power control circuit part of lighting a lamp on the motherboard.Output feedback check circuit is by data latches 74HC373 (A1), and (A3 A4) waits composition to photoelectrical coupler TLP521-4.Whether principle of work is: the output signal of the relay R of lighting a lamp L1～8 is delivered to data latches A1 after photoisolator A3, A4 isolate, read back into W77E58 by data bus then, correct by its judgement output of lighting a lamp.Light a lamp power control circuit by photoelectric switch AQV210EH (B3), photoelectrical coupler TLP521-4 formations such as (B1).The 2nd pin of B3 is by the control of the mouth (50_CTRL) of I/O chip 82C55 (U25 among Fig. 4), when 50_CTRL is low level, and the photoelectric switch conducting, the 50V power supply of lighting a lamp is delivered to the loop that lights a lamp by the 4th pin of B3.When 50_CTRL was high level, photoelectric switch ended, thereby the power supply of lighting a lamp is disconnected.Before carrying out the relay switching, photoelectric switch need be disconnected, to reach protective relay, the purpose that prolongs its service life.When the on-vehicle host fault, also photoelectric switch must be disconnected, to ensure the safety of main frame.
Fig. 8 is the schematic circuit diagram of on-vehicle host display control board 1.Wherein U1 is programmable keyboard and display control chip 8279, and its reset circuit is made of R8 and C1, and its clock is provided by JT2 (frequency is 1M).8279 receive the display data that W77E58 sends here by data bus, behind coding, section code selection information is delivered to two 7 sections BCD decoder CD4511 (U2A, U2), position code selection information is delivered to a slice 4-16 decoder CD4514 (U3), by such connection, can make the maximum figure place showing of system reach 32.U4～U7 among the figure is reverse drive amplifier MC1413, is used for selecting signal to amplify the position that U3 sends.U9 is data latches 74HC373, is used to receive the alarm message that motherboard is sent, and forms 8 paths of LEDs control signals, is used to control corresponding fault alarm LED on the display panel.U8 is address decoder GAL16V8D, is used for the address decoding information that motherboard is sent is reallocated, and is U1, and U9 etc. provide chip selection signal.Socket JP1 and JP2 are 34 core sockets, are used for display control board 1 is connected with two display panels.
Fig. 9 is the schematic circuit diagram of display panel 1, and wherein A1～A4 is 4 common cathode charactrons, is respectively applied for the display machines license number, Station XXX, time and status information.BD1～BD8 is LED, is respectively applied for the various alarm messages of indication, as the radio station fault, and vehicle-mounted requestor fault, the GPS fault, memory device overflows, the output fault etc. of lighting a lamp.J1 is the 34 core sockets that are used for linking to each other with display control board.
Figure 10 is the schematic circuit diagram of display panel 2, and wherein A1～A4 is 4 common cathode charactrons, is respectively applied for to show train position (kilometer post) train position (rice), train speed and responser numbering.
Figure 11 is the main program flow chart of onboard wireless cab signal control setup.When beginning, serial port 0 to microprocessor W77E58 (is the P30/RXD of W77E58 among Fig. 4, the P31/TXD pin) and serial port 1 (being P12/RXD1 and the P13/TXD of W77E58 among Fig. 4) carry out initialization, corresponding traffic rate is respectively 9600bps and 19200bps.Carry out 8279 respectively thereafter,, the initial work of DS12C887,82C51 and 82C55 chip.Interrupt initialized work afterwards, wherein allowing serial ports 0 priority of interrupt is 0, and allowing the priority of external interrupt 0 is 1, and allowing the priority of external interrupt 1 is 0.After these a series of work were finished, initial work was finished.Open global interrupt then, enter an endless loop afterwards.The work of carrying out in this circulation comprises: go up the reading system time from real-time timepiece chip DS12C887, and from the GPS equipment reception information, refresh 8279 display buffer, judge whether to satisfy registration condition, if not, then begin the next round circulation, if, then close global interrupt, get in touch with ground control unit, apply for the registration of, after the registration, open string mouth 0 interrupts, the circulation of beginning next round.In cyclic process, interrupt taking place if having, then enter corresponding interrupt service routine, turn back in the circulation again after disposing.
Figure 12-1 and Figure 12-2 program flow diagram of communicating by letter with vehicle-mounted data radio station for on-vehicle host.Because this diagram of circuit is too big, so be divided into 2 pages of demonstrations.A among the figure represents the point of connection place of flow process shown in two width of cloth figure, and B represents to stop this program circuit.The work that on-vehicle host is communicated by letter with data radio station is that the serial ports 0 by micro controller system W77E58 interrupts realizing.Whether have no progeny in entering, close serial ports 0 earlier and interrupt, differentiating then is to receive to interrupt.If not, then reopen serial ports 0 and interrupt, return main program.Interrupt if receive, whether program is at first differentiated the information of receiving and is sent out by the station control setup.If then carry out Address Recognition.If belong to the information of this machine of issuing, then receive a Frame.In receiving course, character of every reception all will carry out overtime judgement.If recur receive time-out 5 times, then stop receiving.If Frame receives normal, and by verification and inspection, then from Frame, take out the information of lighting a lamp and connect car station track information, information is delivered to signal aspect and indication mechanism, control setup sends the information such as speed, position, mobile unit state of acknowledgement information and train earthward then, deposit the raw information that receives and the raw information of transmission in log buffer simultaneously, reopen serial ports 0 at last and interrupt, return main program.
Figure 13-1 and Figure 13-2 program flow diagram of communicating by letter with vehicle-mounted requestor for on-vehicle host.Because this diagram of circuit is too big, so divide 2 pages of demonstrations, A wherein and B represent two point of connection of flow process shown in two width of cloth figure respectively.On-vehicle host is to realize that by micro controller system W77E58 control asynchronous serial communication interface chip 82C51 (being the U2 among Fig. 5) interrupt signal of the generation of 82C51 connects W77E58 external interrupt 0 (being the P32/INT0 pin of N9 among Fig. 4) with communicating by letter of vehicle-mounted requestor.Therefore, signal procedure adopts external interrupt 0 to realize.Whether have no progeny in entering, at first close external interrupt 0, differentiating the character that receives then is 0xaa.If the working properly and train of then representing vehicle-mounted requestor then reopens external interrupt 0 not by responser, returns main program.If not, then receive 16 bytes continuously, put into the data buffer, then from this data buffering area searching with 0xff, 0xff, 0xff, 0x7e are 8 bytes of data head.Two bytes after the data head are the current responser numbering of passing through, and latter two byte is the CRC check value of responser numbering.If crc check passes through, then can handle at different responser numberings.If be the registration reply device that enters the station, the permission registered symbol then is set, number to GPS plate transponder beacon.If for nullifying responser, then remove and allow registered symbol, also number to GPS equipment transponder beacon.Whenever by a responser, all the numbering with responser sends to the GPS plate so that carry out the adjustment of data to train.After the responser information processing finishes, reopen external interrupt 0, return main program.
Figure 14 carries out the program flow diagram of internal data dump work for on-vehicle host.Data dumper is that the external interrupt 1 by micro controller system W77E58 realizes.Have no progeny in entering, at first judge the current station of whether having left of train, promptly whether stopped and the communicating by letter of station control setup.If do not leave the station, then proceed communication work; If train has left the station, then get the data in the log buffer, deposit data content in IC-card.
Figure 15 is the block diagram of the wireless cab signal system of this onboard wireless of use cab signal control setup.In this wireless cab signal system, on the station control setup is responsible for reaching in the control station/descending all trains that drive towards our station, its wireless digital broadcasting station and vehicle-mounted data radio station constitute wireless data transmission network in the lump, this network provides independently wireless channel for station control setup and onboard wireless cab signal control setup, guarantees to carry out between them two-way, continuous data communication.
When train is advanced to the station that the station control setup is installed, through installation in orbit near responser the time, vehicle-mounted requestor receives the information of ground near responser, then start on-vehicle host and vehicle radio station, the as prescribed mode is constantly sent log-on message to the circulation of station control setup, this information comprises contents such as destination address, source address, key, and up to also successfully being registered by the identification of station control setup, the station control setup sends till the confirmation.In registration process, on-vehicle host is constantly utilized the position of GPS information measurement train and the distance L x between the home signal board, and informs the station control setup.After the station control setup is received log-on message, finish registration, and send response message for onboard wireless cab signal control setup through validity and identity validation.Onboard wireless cab signal control setup after the registration just becomes a node in the wireless cab signal system network, the station control setup periodically sends control information to each onboard control device, as: colour light signal, station track information etc., the station control setup also can receive the information from on-vehicle control apparatus simultaneously, as: train speed, position, signal receipt, responser numbering and mobile unit state etc.After the departures responser is crossed in the train departures, onboard wireless cab signal control setup is revised mailing address automatically, for next stop registration ready, the station control setup then interrupt with this vehicle-mounted data radio station communicate by letter this onboard wireless cab signal control setup of cancellation in network.
Above-mentioned specific embodiment has been described in realization in order to demonstrate the invention.Should be understood that other variation of the present invention and modification it will be apparent to those skilled in the art that the present invention is not limited to the described specific embodiment.Therefore, at the true spirit of the disclosed content of the present invention and any/all modifications, variation or the equivalent transformation in the fundamental principle scope, all belong to claim protection domain of the present invention.
Claims (10)
1. an onboard wireless cab signal control setup is used to constitute wireless cab signal system, it is characterized in that:
Described onboard wireless cab signal control setup comprises on-vehicle host, signal aspect and indication mechanism, vehicle-mounted requestor, gps satellite fixing aid and data radio station, wherein said on-vehicle host connects described data radio station and described gps satellite fixing aid by RS-232 interface, connect described vehicle-mounted requestor by the RS-485 interface, described signal aspect and indication mechanism links to each other with described on-vehicle host by cable;
Have CPU minimum system circuit, house dog/reset circuit, real time clock circuit, display control circuit, lamp circuit, communication interface circuit, data storage circuitry and data dump circuit in the described on-vehicle host;
Described house dog/reset circuit, data storage circuitry and data dump circuit directly link to each other with described CPU minimum system circuit, and described real time clock circuit, display control circuit, lamp circuit and communication interface circuit link to each other with described CPU minimum system circuit by system bus.
2. onboard wireless cab signal control setup as claimed in claim 1 is characterized in that:
CPU in the described on-vehicle host in the CPU minimum system circuit is the W77E58 microprocessor, and as the least-significant byte address of system bus, the P20-P27 pin provides the most-significant byte address of system bus to its P00～P07 pin after address latch latchs; The P00 of described W77E58 microprocessor～P07 pin is after the bus driver chip for driving drives, as the data bus of system.
3. onboard wireless cab signal control setup as claimed in claim 2 is characterized in that:
Communication interface circuit in the described on-vehicle host provides three serial communication interfaces, wherein the RS-232 interface that communicates with described vehicle radio station is made up of the serial ports 0 and the two-way driving/receptor of described W77E58 microprocessor, the RS-485 interface that communicates with described vehicle-mounted requestor comprises asynchronous serial communication interface chip 82C51, joint denial gate, crystal oscillator, counting chip, double contact pin, carry the RS485 interface chip MAX1480 that photoelectricity is isolated, the RS-232 interface that communicates with described GPS equipment comprises 8251 chips, joint denial gate, crystal oscillator, counting chip, double contact pin.
4. onboard wireless cab signal control setup as claimed in claim 2 is characterized in that:
Described house dog/reset circuit adopts the MAX705 chip, and the RSTH signal that its RESET pin produces after Schmidt trigger is reverse inserts the RESET pin of described W77E58 microprocessor, so that reset signal to be provided; The WDI pin of described MAX705 chip also inserts the P1.0 pin of described W77E58 microprocessor.
5. onboard wireless cab signal control setup as claimed in claim 3 is characterized in that:
The traffic rate of RS-485 interface that communicates with described vehicle-mounted requestor and the RS-232 interface that communicates with described GPS equipment is provided with by the wire jumper of described double contact pin.
6. onboard wireless cab signal control setup as claimed in claim 1 is characterized in that:
Described display control circuit adopts 8279 chips, it receives the display data that described CPU minimum system circuit is sent here by data bus, behind coding, section code selection information is delivered to two 7 sections BCD decoder CD4511, position code selection information is delivered to a slice 4-16 decoder.
7. onboard wireless cab signal control setup as claimed in claim 2 is characterized in that:
It is 0 that described W77E58 microprocessor allows serial ports 0 priority of interrupt, and allowing the priority of external interrupt 0 is 1, and allowing the priority of external interrupt 1 is 0.
8. onboard wireless cab signal control setup as claimed in claim 2 is characterized in that:
Described W77E58 microprocessor externally interrupts 1 o'clock log-on data dump program(me).
9. onboard wireless cab signal control setup as claimed in claim 2 is characterized in that:
Described W77E58 microprocessor externally interrupts the signal procedure of startup in 0 o'clock and described vehicle-mounted requestor.
10. onboard wireless cab signal control setup as claimed in claim 2 is characterized in that:
Described W77E58 microprocessor starts the signal procedure with described data radio station when serial ports 0 interrupts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310101731 CN1285479C (en) | 2003-10-22 | 2003-10-22 | Radio locomotive signal control device carried by locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310101731 CN1285479C (en) | 2003-10-22 | 2003-10-22 | Radio locomotive signal control device carried by locomotive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1537771A CN1537771A (en) | 2004-10-20 |
| CN1285479C true CN1285479C (en) | 2006-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310101731 Expired - Fee Related CN1285479C (en) | 2003-10-22 | 2003-10-22 | Radio locomotive signal control device carried by locomotive |
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| Country | Link |
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| CN (1) | CN1285479C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070078574A1 (en) * | 2005-09-30 | 2007-04-05 | Davenport David M | System and method for providing access to wireless railroad data network |
| CN101353048B (en) * | 2008-09-04 | 2010-10-06 | 铁道部运输局 | Plug-in component equipment for locomotive communicating system |
| CN101917210A (en) * | 2010-07-16 | 2010-12-15 | 天津七一二通信广播有限公司 | Railway wireless train dispatching station radio |
| CN102143171A (en) * | 2011-03-21 | 2011-08-03 | 河南思维自动化设备有限公司 | Train operation monitoring device vehicle-mounted data replacement and installation system |
| CN102229344A (en) * | 2011-03-21 | 2011-11-02 | 河南思维自动化设备有限公司 | Radio shunting signal monitoring device for train station |
| CN102955438B (en) * | 2011-08-17 | 2017-04-26 | 秦皇岛天业通联重工科技有限公司 | Vehicular terminal of engineering machinery remote monitoring system |
| CN109765799B (en) * | 2018-12-25 | 2020-10-16 | 哈尔滨工业大学 | Serial port data receiving and transmitting method based on DSP and used for guidance control of vertical take-off and landing aircraft |
| CN111145609A (en) * | 2020-01-14 | 2020-05-12 | 北京智联友道科技有限公司 | Urban rail train control center simulation system and use method thereof |
-
2003
- 2003-10-22 CN CN 200310101731 patent/CN1285479C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1537771A (en) | 2004-10-20 |
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