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Method and device for data exchange via radio channel between train locomotive and stationary relay station

Method and device for data exchange via radio channel between train locomotive and stationary relay station
IPC classes for russian patent Method and device for data exchange via radio channel between train locomotive and stationary relay station (RU 2476342):
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Method to determine location of running rail vehicle Method to determine location of running rail vehicle / 2248293
Invention relates to methods of location of running trains. According to proposed method, computer is installed, for instance, on locomotive, and information on region along which tracks are laid and fixed reference points with known coordinates are introduced into computer memory. Locomotive is furnished additionally with photosensor, for instance, video camera by means of which video shooting of contact system locks is provided. Information is supplied with resolution sufficient to recognize intersection of contact system lock and contact system proper. Analog-to-digital video signal converter takes picture from video camera, provides numbering of picture and transmission of picture into computer where picture is compared with lock mask. If result of comparing is positive, value of variable responsible for storing ordinal number of lock of contact system on said route is increased and, basing on obtained number, data are selected by point of route.

FIELD: transport.

SUBSTANCE: invention relates to railway ACS, remote control and communication systems. Proposed method consists in transfer of data to locomotive in preset time interval. Before data exchange, current coordinates of locomotive are compared with those of preset registration points. In case they comply, train number signal is transmitted to stationary relay station. Received signal is used to load train number into data base to define the number of temporary free slot for data transfer from locomotive. Data on said slot is transmitted to locomotive and, thereafter, it is used for train motion data transmission to stationary relay station. Data exchange is synchronised by time markers from satellite navigation system. Data exchange device comprises stationary set composed of radio modem, registration signal receiver, and the following units: satellite navigation unit, unit of controlled and uncontrolled objects, control and interface unit, memory of train numbers and unit for definition of temporary slot number. Besides, proposed device comprises locomotive set including registration signal generator, radio modem, complex locomotive safety device, and the following units: temporary slot numbers storage, satellite navigation unit, control and interface unit.

EFFECT: continuous control over train situation.

2 cl, 2 dwg

 

The invention relates to the field of railway automatics, telemechanics and communication and can be used to exchange information between the locomotive and stationary equipment in the systems of automatic tone circuits, centralized placement of equipment Autolock and overlapping radio channels.

The known method and device for remote control of locomotives using radio signals containing the remote programming by which the operator sends the address information to the radio transmitter locomotives and sets a special address in the remote control system (EP No. 1344703, B61L 3/12, 2004). The disadvantage of this method and device is the lack of automation in the assignment of addresses and the possibility of errors when manually assigning addresses and, as a consequence, low safety remote control locomotives.

A well-known system of train control using radio signals and the method of gathering information, in which the operative field information is stored and transmitted on a moving train in the area of the base stations (JP No. 3851834, B61L 25/06, 2007). The disadvantage of this method and system is to transmit the information only in the coverage area of base stations, thus failing the operational management of train nausem the train route.

There is a method of data transmission to the radio receiver rail vehicle, wherein the computing device is written to the command with the call number, station name and time of arrival at the station, the coincidence of which he is calling the radio in his room (DE NO. 19842304, B61L 25/00, 2001). The disadvantage of this method is the lack of information transfer during the entire travel route of the vehicle.

A device for radio control the movement of trains on the route containing a stationary control station with the Central unit, which provides information about employment path, and a stationary transceiver device and installed on the locomotive the locomotive transceiver device for communicating with control and indicator device (DE NO. 19931967, B61L 25/02, B61L 25/00, 2002). The disadvantage of this device is the lack of information about the state of the traffic lights, there is no full information about the train situation on the part of the railroad.

The closest technical solution is a way of sharing information over the air between a train locomotive and stationary point, which consists in the exchange of data packets on a train situation on the stretch formed on the stationary point, and Pak is Tami data about movement parameters, formed on a train locomotive, and transfer to a train locomotive data packets is performed in a predetermined time interval, the device information exchange between train locomotive and stationary paragraph contains a stationary set, consisting of a radio (radio), block controlled and managed objects that are connected to stationary data processor (computer), and locomotive kit consists of a wireless modem (radio), integrated locomotive safety devices connected to the unit sensors (coils), described in the patent for the automatic locomotive signaling (RU # 2394715, B61L 3/20, 2009). The disadvantage of this technical solution is the lack of data about the parameters of the movement of the train from the locomotive to a stationary point, which does not allow for continuous monitoring of train situation on the stretch and movement parameters of trains to ensure optimal spacing after running the trains.

The technical result of the invention lies in the fact that the introduced traits allow permanent monitoring of the train situation on the stretch and movement parameters of the train to ensure the optimal distance between after reaching trains and improve without the security of their movement.

The technical result of the invention is achieved in that in the method of sharing information over the air between a train locomotive and stationary point, which consists in the exchange of data packets on a train situation on the stretch formed on the stationary point, and packet data traffic generated on-Board the locomotive, and transfer to a train locomotive data packets is performed in a predetermined time interval, according to the invention prior to the exchange of information on train locomotive in motion compare the current geographic coordinate location of the train locomotive with a pre-specified geographic coordinates of the registration point and at their coincidence transmit a registration signal that carries information about the number trains, at the stationary point, where the adopted signal write the number of a train in the database and determine the number of free time slots for data transmission from a train locomotive, then the information about the assigned number of a time slot to transmit on a train locomotive, then the allocated time slot is used for transmission to a stationary point of the packet data train movement, and synchronization when exchanging data packets carried out by time stamp, accept the t satellite navigation system, while the device of the communication channel between a train locomotive and stationary item that contains a stationary set, consisting of a radio unit are controlled and managed objects that are connected to stationary data processor, and locomotive kit consists of a wireless modem, integrated locomotive safety device, connected to the sensor unit, according to the invention in a stationary set is entered serially connected unit satellite navigation, a stationary control unit and mates, the receiver signal reception, the memory block of the train number, the block number determination of a time slot, the output of which is connected to the second input of the stationary control unit and mates, first and second inputs/outputs of which are connected to the outputs/inputs respectively of stationary data processor and radio, and in the locomotive kit entered the block of storage room in time slots and connected in series block satellite navigation, driver signal reception and the locomotive control unit and mates, the first and second inputs/outputs of which are connected to the outputs/inputs, respectively, of a radio modem and integrated locomotive safety devices, an additional output which through the block storage rooms time the data slots connected to the second input of the locomotive control unit and mates, the third input of which is connected to the second output unit satellite navigation.

A comparison of the claimed technical solution with analogues and prototype allowed us to establish compliance with the conditions of patentability of "novelty" and "inventive step", because this solution is not known and is not obvious from the prior art.

The proposed solution is industrially applicable, as may be implemented with existing technology. Therefore, the proposed solution meets the criteria for patentability.

The timing of transmission and reception stationary and locomotive modems is shown in Fig.1.

Landline modems CM1 and CM2 transmission of data packets on a train locomotive carried out at predetermined time intervals t1 and t2, the duration of 500 MS.

Registration locomotive modems when joining the train at the site of the approximation is carried out in a time interval t9, t10, duration 100 MS.

Locomotive radio modems transmit data packets on hospitals is carried out in the selected time intervals 1...15 each train on the transmission, duration of 100 MS.

Message from landline modems contains shared (broadcast) and the address part, the following continuous the VNO in one package. The maximum message length landline modems is 240 bytes. The length of the common part is fixed at 40 bytes. The length of the address of the variable part depends on the number of trains on the route and is 10 bytes for each train. Message from the locomotive has a fixed length of not more than 20 bytes. With the locomotive passed two kinds of messages: information and registration request.

Figure 2 shows a structural diagram of a device implementing the method of sharing information over the air between a train locomotive and stationary item.

The device of the communication channel between a train locomotive and stationary item that contains a stationary set 1, consisting of unit 2, unit 3 are controlled and managed objects that are connected to stationary data processor 4, and the locomotive kit 5 consisting of a radio modem 6, integrated locomotive device 7 security, with the connected unit 8 sensors, stationary set 1 is entered serially connected unit 9 satellite navigation, stationary unit 10 controls and pairing, the receiver 11 of the signal reception block 12 numbers of trains, block 13 determine the number of time slots, the output of which is connected to the second input of the stationary block 10 management and pairing, the first and second inputs/outputs of which are connected to the outputs/inputs respectively of stationary data processor 4 and radio 2, and in the locomotive kit 5 entered in block 14 of storage room in time slots and connected in series block 15 satellite navigation, driver 16 signal reception and locomotive unit 17 controls and mating the first and second inputs/outputs of which are connected to the outputs/inputs, respectively, of a radio modem 6 and integrated locomotive device 7 security, an additional output which through the block 14 storage room in time slots connected to the second input of the locomotive unit 17 controls and interface, a third input which is connected to the second output unit 15 satellite navigation.

The device information exchange over the air between a train locomotive and stationary point is as follows.

On a train locomotive 5 in block 15 satellite navigation when driving compare the current geographic coordinate location of the train locomotive with a pre-specified geographic coordinates of the registration point. At their coincidence with the first output unit 15 satellite navigation transmit a start signal to the input of the shaper 16 signal reception. The signal output from the imaging unit 16 through the locomotive unit 17 controls and mates and unit 6 train locomotive 5 enters the channel. The radio signal via radio modem 2 stationen the point 1, stationary unit 10 controls and pairing enters the receiver 11 signal reception stationary point 1. Signal reception carries information about the number, type of train and the number of the route. According to the signal write the received data train in the database unit 12 numbers of trains. In block 13 with regard to the sequence of previously received data to determine an available time slot for data transmission from the train locomotive. Information about the assigned number of a time slot from the output of the unit 13 through the stationary unit 10 controls and mates and unit 2 stationary paragraph 1 is passed to a train locomotive 5. Via radio modem 6 train locomotive 5, the locomotive control unit and the coupling 17, the integrated locomotive safety device 7 security number is assigned a time slot is passed to the block 14 storing a number of time slots. Allocated time slot used for transmission from a train locomotive 5 on the stationary paragraph 1 of data packets on the parameters of the movement of the train.

Stationary data processor 4 stationary points 1 collects data on the status of the unit 3 are controlled and managed objects at this stage, fixing a consistent occupation and liberation train track circuits and the lights burning at traffic lights. This data is output to fixed data processor 4 in synchronous points in time are transmitted to a train locomotive 5. Synchronization when exchanging data packets carried out by time stamp received from a satellite navigation system, unit 9 satellite navigation on a stationary unit 1 and unit satellite navigation 15 on a train locomotive 5.

Integrated locomotive safety device 7 safety of train locomotive 5 collects data on the status of the block 8 sensors on the engine, locking position, speed and direction of movement of the train. The data output integrated locomotive device 7 is placed on a stationary item 1.

The technical result of the invention lies in the fact that the introduced traits allow permanent monitoring of the train situation on the lines and parameters of trains to ensure optimal spacing after reaching trains and increase the security of their movement.

1. The way of sharing information over the air between a train locomotive and stationary point, which consists in the exchange of data packets on a train situation on the stretch formed on the stationary point and the packet data traffic generated on-Board the locomotive, and transfer to a train locomotive data packets is carried out in a pre-determined time interval, characterized in that prior to the exchange details what Razia on a train locomotive in motion compare the current geographic coordinate location of the train locomotive with a pre-specified geographic coordinates of the registration point and at their coincidence transmit a registration signal that carries information about the number of a train, at a stationary point, where the adopted signal write the number of a train in the database and determine the number of free time slots for data transmission from a train locomotive, then the information about the assigned number of a time slot to transmit on a train locomotive, then the allocated time slot is used for transmission to a stationary point of the packet data train movement, and synchronization when exchanging data packets carried out by time stamp received from a satellite navigation system.

2. The device of the communication channel between a train locomotive and stationary item that contains a stationary set, consisting of a radio unit are controlled and managed objects that are connected to stationary data processor, and locomotive kit consists of a wireless modem, integrated locomotive safety device, connected to the sensor unit, characterized in that the stationary set is entered serially connected unit satellite navigation, a stationary control unit and mates, the receiver signal reception, the memory block of the train number, the block number determination of a time slot, the output of which is connected to in Oromo input stationary control unit and mates, the first and second inputs/outputs of which are connected to the outputs/inputs respectively of stationary data processor and radio, and in the locomotive kit entered the block of storage room in time slots and connected in series block satellite navigation, driver signal reception and the locomotive control unit and mates, the first and second inputs/outputs of which are connected to the outputs/inputs, respectively, of a radio modem and integrated locomotive safety devices, an additional output which through the block storage rooms time slots connected to the second input of the locomotive control unit and coupling the third input of which is connected to the second output unit satellite navigation.

 

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