CN201095374Y - Track circuit for computer network - Google Patents
Track circuit for computer network Download PDFInfo
- Publication number
- CN201095374Y CN201095374Y CNU2007201822831U CN200720182283U CN201095374Y CN 201095374 Y CN201095374 Y CN 201095374Y CN U2007201822831 U CNU2007201822831 U CN U2007201822831U CN 200720182283 U CN200720182283 U CN 200720182283U CN 201095374 Y CN201095374 Y CN 201095374Y
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Abstract
The utility model discloses a track circuit of the computer network. The track circuit comprises a host computer used for transmitting control commands/receiving and replying data, a communication main board used for transmitting/receiving data and connected with the host computer through a first CAN bus of an air control network, a transmitting main board used for transmitting data signals and connected with a second CAN bus, a power amplifying main board used for amplifying the data signals and connected with the transmitting main board, and a steel rail connected with the power amplifying main board; the steel rail is connected with an attenuation isolation unit used for receiving signals and adjusting amplitude, the attenuation isolation unit is connected with a receiving board, and the receiving board is connected with the communication main board through the second CAN bus. The track circuit of the computer network in the utility model has the advantages that the track circuit can meet the requirement of data transmission between the train and the area control center, the line connection is simple, and the data transmission capacity is high.
Description
Technical field
The utility model relates to field of computer technology, is meant a kind of track circuit of computer network especially.
Background technology
In the vehicle in modern times, track train obtains more and more widely application as the main trip vehicle, as train, subway, light rail etc.
Track train can receive the control signal of control center in operational process, by the scheduling of control signal realization to train.When train is dispatched, can judge the situation that takies on each station rail, transmit control signal by the result after judging by track circuit (TC:Track Circuit) equipment.
In present track circuit, data transmission between train and the control center adopts the relay coded system, promptly uses a plurality of safety type relays, utilizes the two-valued function data of relay to make up, obtain various information, in order to the various operating datas and the status information of expression train operation.The quantity of information that adopts the relay coded system to produce is less, can not provide complete control data for train.
These control datas need be gathered the node of relay, and each information needs to gather a group relay node at least, and the various complexity of cabling, swinging cross occurs very easily, and interface is more, is prone to problems such as bad contact.
The utility model content
In view of this, the utility model is to provide a kind of track circuit of computer network, to solve above-mentioned relay track circuit cabling complexity, to be prone to the problem of swinging cross.
For addressing the above problem, the utility model provides a kind of track circuit of computer network, comprise: be used for the main frame that data are replied in transmitting control commands/reception, described main frame is used to send/receive the communication mainboard of data by the total wire joint of Zone control network the one CAN, described communication mainboard is used to send the transmission mainboard of data-signal by the total wire joint of the 2nd CAN, described transmission mainboard connects the power amplifier mainboard that is used for amplified data signal, and described power amplifier mainboard connects rail;
Described rail connects the attenuation isolated location that is used for received signal and adjusting range, and described attenuation isolated location is connected with dash receiver, and described dash receiver is by the described communication mainboard of the total wire joint of described the 2nd CAN.
Preferably, the quantity of a described CAN bus, the 2nd CAN bus is two or more.
Preferably, also comprise: with the redundant each other bonded assembly standby host of described main frame, the slave board of communicating by letter with the redundant each other bonded assembly of described communication mainboard sends slave board with the redundant each other bonded assembly of described transmission mainboard, with the redundant each other bonded assembly power amplifier of described power amplifier mainboard slave board.
Preferably, the quantity of described dash receiver is redundant each other two.
Preferably, two CPU of data check are provided with or/and dash receiver adopts each other for described main frame, communication mainboard, transmission mainboard.
Preferably, two CPU of data check are provided with or/and dash receiver adopts each other for described standby host, communication slave board, transmission slave board.
Preferably, described redundant each other bonded assembly main frame and standby host are installed in the same area control center.
Preferably, described redundant each other bonded assembly communication mainboard is with in the slave board of communicating by letter is installed in same communication unit.
Preferably, described redundant each other bonded assembly sends mainboard and sends slave board and is installed in the same transmitting element; Described power amplifier mainboard, power amplifier slave board are installed in the same power amplifier unit.
Preferably, described superfluous each other She's bonded assembly dash receiver is installed in the same receiving element.
The track circuit of computer network in the utility model can satisfy the data transmission between train and the Regional Control Center, and the circuit connection is simple, comprises primary, spare redundant each other bonded assembly equipment, has guaranteed the safe transmission of data; Can adopt two CPU to be provided with on each primary, spare equipment and carry out data handing simultaneously, and the data after the checking treatment, guarantee the correctness of data handing.
Description of drawings
Fig. 1 is the constructional drawing of embodiment one;
Fig. 2 is the constructional drawing of embodiment two.
The specific embodiment
For clearly demonstrating the track circuit of the computer network in the utility model, provide preferred embodiment below and be described with reference to the accompanying drawings.
Referring to Fig. 1, Fig. 1 is the constructional drawing of the utility model embodiment one, in this embodiment, the track circuit of computer network comprises: the Regional Control Center that main frame is installed, described main frame is connected to communication unit M by Zone control network C AN bus and communication unit 1, each communication unit connects the other transmission/reception facilities 1 of rail respectively to the other transmission/reception facilities N of rail by the CAN bus, and wherein, the communication board in the communication unit is realized the data transmission between other transmission/reception facilities of rail and the main frame.
Comprise in the other transmissions/reception facilities of each rail: transmitting element, and described transmitting element bonded assembly power amplifier unit, wherein, transmission board will be sent to power board from the data of communication board, transfer to rail by power board; The attenuation isolated location, with described attenuation isolated location bonded assembly receiving element, described attenuation isolated location connects rail, and dash receiver is judged orbit occupancy or idle condition and state is sent to communication unit by the CAN bus.
The track circuit of aforementioned calculation machine network is sent data and receives data from rail to rail by the host computer control of Regional Control Center in the course of the work.When main frame sends the car controlling data, earlier data are sent to communication board 1 to communication board M by the CAN bus, each communication board carries out CRC check and coding redundancy with data, and being sent to each transmission board of its bonded assembly by the CAN bus, each transmission board is sent to power board with data to carry out being transferred to rail behind the power gain; Simultaneously, the attenuation isolated location transfers to dash receiver after with the signal adjusting range of collecting on the rail, by the CAN bus orbital data is sent to communication board by dash receiver, and communication board carries out being sent to main frame by the CAN bus behind CRC check and the coding redundancy.These orbital datas mainly comprise the taking of track circuit, idle, status information.
In embodiment one, power board mainly comprises power amplifier.Because the signal on the rail is stronger, is not suitable for dash receiver and handles.Therefore, the attenuation isolated location is mainly signal adjustment circuit; Main frame, communication board, transmission board, dash receiver are a CPU job, but because the security requirement of track circuit is higher, for improving the safety of signal data, also can adopt two CPU work; For example, all adopt two CPU at main frame, communication board, transmission board, the dash receiver of Regional Control Center, in the process of data transmission/reception, two CPU can compare the data that will send/receive, when relatively more consistent, and transmission/reception data, more inconsistent, resend/receive data.
Because the track circuit in the utility model is mainly used in the middle of the Train Control, therefore, for guaranteeing that any mistake can not appear in data transmission safety, each equipment also can adopt active and standby redundant fashion to realize, and adopt two or more CAN bus to work simultaneously, when sending data, send to simultaneously on two or more the CAN bus, CAN bus from any normal operation during reception receives data, and the constructional drawing of this implementation is referring to Fig. 2.
In this embodiment, the equipment of Regional Control Center adopts main frame, two equipment redundancy work of standby host, main frame, standby host all are connected between the communication mainboard of communication unit M, communication slave board by CAN bus A, CAN bus B and communication unit 1, main frame, standby host are worked simultaneously, but have only main frame that data are sent on CAN bus A and the CAN bus B simultaneously; Communication mainboard, communication slave board are worked simultaneously, but have only communication mainboard externally to send/receives data, and communication mainboard is once break down, and the slave board of communicating by letter can externally send/receive data.
Wherein, the communication mainboard of each communication unit, communication slave board link to each other with transmission mainboard, transmission slave board, dash receiver A, the dash receiver B of the other transmission/reception facilities of each rail by CAN bus 1, CAN bus 2, in the course of normal operation, communication mainboard, communication slave board, transmission mainboard, transmission slave board are worked simultaneously, but have only communication mainboard, transmission mainboard to carry out data transmission by CAN bus 1, CAN bus 2, only after communication mainboard, transmission mainboard broke down, communication slave board, transmission slave board just carried out data transmission by CAN bus 1, CAN bus 2.
Dash receiver can adopt one, also can adopt two to work simultaneously, as the dash receiver A in the present embodiment, dash receiver B, do not distinguish active and standby, as long as any one dash receiver judgement track clear then communication unit think track clear.
In this embodiment, transmission mainboard, transmission slave board are installed in the transmitting element, and connect power amplifier mainboard, the power amplifier slave board of power amplifier unit respectively; Dash receiver A, dash receiver B are installed in the receiving element, and connect the attenuation isolated location.
By above-mentioned primary, spare setting, this computer network track circuit in the course of the work, host apparatus, stand-by facility are all worked simultaneously, and the data of transmission/reception are handled.After if host apparatus breaks down, stand-by facility is work automatically.Thereby interrupting appears in the data transmission of avoiding occurring between train and the Regional Control Center.
Car controlling command information after Regional Control Center will be encoded is sent to the other transmission/reception facilities of rail by communication unit; Or by the data of communication unit reception from the other transmission/reception facilities of rail.After primary, spare equipment receives two data on the CAN bus, do not carry out data relatively,, other one tunnel bus is only played the monitoring effect as long as the data that correctly receive on any one tunnel bus think that then data are effective.The reliability of data comes dual assurance by superfluous She of coding and transfer check on arbitrary bus.Transmit identical data on the redundant bus, guarantee the normal operation of communication network, realize electrical isolation between the bus.If do not have data on other one tunnel bus, perhaps there is data check sign indicating number on one tunnel bus to make mistakes and then will provides warning.
Communication cycle on CAN bus A, the B is fixed, and is initiated by the main frame transmission synchronization frame of Regional Control Center.Synchronizing signal on the bus can make redundant standby host input and output synchronous, thus guarantee one of Information Monitoring make peace output signal synchronously.It between two synchronization frames a communication cycle.After Regional Control Center sends synchronization frame, begin to send the car controlling order data of coding, order data has comprised all the car controlling data in its compass of competency, other transmission/the reception facilities of rail is after receiving synchrodata, postback the taking of other equipment state service data of rail in its compass of competency and track circuit, idle information, all data exchanges are finished in one-period.
Communication cycle on bus CAN1, the CAN2 is fixed, and send synchronization frame by the CPU of the communication mainboard of communication unit and initiate, between two synchronization frames a communication cycle.After the communication mainboard of communication unit sends synchronization frame,, issue the other transmission/reception facilities of corresponding rail successively by orbit number the car controlling order at the control center, district after handling through subpackage.In addition, after the other transmission/reception facilities of rail is received synchronization frame, postback the taking of respective rail circuit, idle information; Simultaneously, transmitting element, receiving element postback the plant maintenance information of self respectively, and all data exchanges are finished in one-period.
The communication slave board of communication unit is synchronized with mainboard, receives the maintenance information of the taking of track circuit, idle information and the other transmissions/reception facilities of rail and handles, but do not send the car controlling order data to the other transmission/reception facilities of rail.
Because the CAN2.0B bus protocol, provides priority control according to the heading code address difference of node, so data collision can not take place on the bus.By configuration, can support point-to-point transmission and broadcast transmission (synchronization frame) function to heading code.In order to ensure the real-time requirement, the people is the online conflict of avoiding data, and the information that system has increased control bus transmits time slot and handles, i.e. time of using greater than actual data transfer on the bus of communication cycle.In addition, CAN bus real-time has very strong wrong identification and processing capacity, and arbitrary network passage or node failure can not cause loss of data, can not influence the normal operation of system's miscellaneous equipment.In above-mentioned two embodiment, Regional Control Center and communication unit bonded assembly CAN bus are a CAN bus; The bonded assembly bus is the 2nd CAN bus in communication unit and transmitting element, the receiving element.
Describe the track circuit of the computer network in the utility model above in detail; track circuit for the computer network of being set forth among each embodiment of the utility model; all within spirit of the present utility model and principle; any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1, a kind of track circuit of computer network, it is characterized in that, comprise: be used for the main frame that data are replied in transmitting control commands/reception, described main frame is used to send/receive the communication mainboard of data by the total wire joint of Zone control network the one CAN, described communication mainboard is used to send the transmission mainboard of data-signal by the total wire joint of the 2nd CAN, described transmission mainboard connects the power amplifier mainboard that is used for amplified data signal, and described power amplifier mainboard connects rail;
Described rail connects the attenuation isolated location that is used for received signal and adjusting range, and described attenuation isolated location is connected with dash receiver, and described dash receiver is by the described communication mainboard of the total wire joint of described the 2nd CAN.
2, track circuit according to claim 1 is characterized in that, the quantity of a described CAN bus, the 2nd CAN bus is two or more.
3, track circuit according to claim 1, it is characterized in that, also comprise: with the redundant each other bonded assembly standby host of described main frame, the slave board of communicating by letter with the redundant each other bonded assembly of described communication mainboard, send slave board with the redundant each other bonded assembly of described transmission mainboard, with the redundant each other bonded assembly power amplifier of described power amplifier mainboard slave board.
4, track circuit according to claim 1 is characterized in that, the quantity of described dash receiver is redundant each other two.
5, track circuit according to claim 1 is characterized in that, two CPU of data check are provided with or/and dash receiver adopts each other for described main frame, communication mainboard, transmission mainboard.
6, track circuit according to claim 3 is characterized in that, two CPU of data check are provided with or/and dash receiver adopts each other for described standby host, communication slave board, transmission slave board.
7, track circuit according to claim 3 is characterized in that, described redundant each other bonded assembly main frame and standby host are installed in the same area control center.
8, track circuit according to claim 3 is characterized in that, described redundant each other bonded assembly communication mainboard is with in the slave board of communicating by letter is installed in same communication unit.
9, track circuit according to claim 3 is characterized in that, described redundant each other bonded assembly sends mainboard and sends slave board and is installed in the same transmitting element; Described power amplifier mainboard, power amplifier slave board are installed in the same power amplifier unit.
10, track circuit according to claim 4 is characterized in that, described redundant each other bonded assembly dash receiver is installed in the same receiving element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201822831U CN201095374Y (en) | 2007-11-16 | 2007-11-16 | Track circuit for computer network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201822831U CN201095374Y (en) | 2007-11-16 | 2007-11-16 | Track circuit for computer network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201095374Y true CN201095374Y (en) | 2008-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201822831U Expired - Fee Related CN201095374Y (en) | 2007-11-16 | 2007-11-16 | Track circuit for computer network |
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| CN (1) | CN201095374Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310870A (en) * | 2011-05-16 | 2012-01-11 | 铁道部运输局 | ZPW-2000A track circuit system |
| CN103600754A (en) * | 2013-12-02 | 2014-02-26 | 北京铁路信号有限公司 | Track circuit code sending system |
| CN107942645A (en) * | 2017-10-19 | 2018-04-20 | 北京全路通信信号研究设计院集团有限公司 | Control system |
| CN107968702A (en) * | 2017-10-19 | 2018-04-27 | 北京全路通信信号研究设计院集团有限公司 | Control system |
| CN107979486A (en) * | 2017-10-19 | 2018-05-01 | 北京全路通信信号研究设计院集团有限公司 | Control system |
| CN107994977A (en) * | 2017-10-19 | 2018-05-04 | 北京全路通信信号研究设计院集团有限公司 | Control system |
| CN108205305A (en) * | 2016-12-20 | 2018-06-26 | 比亚迪股份有限公司 | Train network control system and method based on CAN |
| CN111142012A (en) * | 2020-04-03 | 2020-05-12 | 北京全路通信信号研究设计院集团有限公司 | Testing device and testing method for track circuit communication interface board |
| CN111301482A (en) * | 2020-05-15 | 2020-06-19 | 北京全路通信信号研究设计院集团有限公司 | 1+1 redundant track circuit system of transmitter suitable for ordinary railway |
| CN113328887A (en) * | 2021-05-28 | 2021-08-31 | 卡斯柯信号有限公司 | Load board testing system and method based on M-LVDS bus |
-
2007
- 2007-11-16 CN CNU2007201822831U patent/CN201095374Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310870A (en) * | 2011-05-16 | 2012-01-11 | 铁道部运输局 | ZPW-2000A track circuit system |
| CN103600754A (en) * | 2013-12-02 | 2014-02-26 | 北京铁路信号有限公司 | Track circuit code sending system |
| CN103600754B (en) * | 2013-12-02 | 2015-12-09 | 北京铁路信号有限公司 | A kind of track circuit signaling system |
| CN108205305A (en) * | 2016-12-20 | 2018-06-26 | 比亚迪股份有限公司 | Train network control system and method based on CAN |
| CN108205305B (en) * | 2016-12-20 | 2020-05-19 | 比亚迪股份有限公司 | Train network control system and method based on CAN |
| CN107942645B (en) * | 2017-10-19 | 2020-09-29 | 北京全路通信信号研究设计院集团有限公司 | Control system |
| CN107994977A (en) * | 2017-10-19 | 2018-05-04 | 北京全路通信信号研究设计院集团有限公司 | Control system |
| CN107979486A (en) * | 2017-10-19 | 2018-05-01 | 北京全路通信信号研究设计院集团有限公司 | Control system |
| CN107968702A (en) * | 2017-10-19 | 2018-04-27 | 北京全路通信信号研究设计院集团有限公司 | Control system |
| CN107942645A (en) * | 2017-10-19 | 2018-04-20 | 北京全路通信信号研究设计院集团有限公司 | Control system |
| CN111142012A (en) * | 2020-04-03 | 2020-05-12 | 北京全路通信信号研究设计院集团有限公司 | Testing device and testing method for track circuit communication interface board |
| CN111142012B (en) * | 2020-04-03 | 2020-07-31 | 北京全路通信信号研究设计院集团有限公司 | Testing device and testing method for track circuit communication interface board |
| CN111301482A (en) * | 2020-05-15 | 2020-06-19 | 北京全路通信信号研究设计院集团有限公司 | 1+1 redundant track circuit system of transmitter suitable for ordinary railway |
| CN111301482B (en) * | 2020-05-15 | 2020-09-29 | 北京全路通信信号研究设计院集团有限公司 | 1+1 redundant track circuit system of transmitter suitable for ordinary railway |
| CN113328887A (en) * | 2021-05-28 | 2021-08-31 | 卡斯柯信号有限公司 | Load board testing system and method based on M-LVDS bus |
| CN113328887B (en) * | 2021-05-28 | 2022-07-12 | 卡斯柯信号有限公司 | Load board testing system and method based on M-LVDS bus |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING QUANLU COMMUNICATION SIGNALS RESEARCH AND Free format text: FORMER NAME: BEIJING QUANLU COMMUNICATION SIGNAL RESEARCH DESIGN INST. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 100073, Beijing, Fengtai District Huayuan one mile No. 18 building Patentee after: Beijing Quanlu Communication Signals Research and Design Institute Co., Ltd. Address before: 100073, Beijing, Fengtai District Huayuan one mile No. 18 building Patentee before: Beijing Quanlu Communication Signal Research Design Inst. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080806 Termination date: 20141116 |
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| EXPY | Termination of patent right or utility model |