CN206991538U - Monitoring and maintenance system for frequency shift modulated track circuit trackside equipment - Google Patents
Monitoring and maintenance system for frequency shift modulated track circuit trackside equipment Download PDFInfo
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- CN206991538U CN206991538U CN201720795180.6U CN201720795180U CN206991538U CN 206991538 U CN206991538 U CN 206991538U CN 201720795180 U CN201720795180 U CN 201720795180U CN 206991538 U CN206991538 U CN 206991538U
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- extension set
- monitoring
- track circuit
- frequency shift
- collection
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Abstract
It the utility model is related to a kind of monitoring and maintenance system for frequency shift modulated track circuit trackside equipment, the system includes the collection extension set being located outside and the communication module and maintenance terminal positioned at interior, described collection extension set one end is connected by the standby electricity cable of frequency shift modulated track circuit with communication module, the other end is connected with the trackside resonance matching unit in frequency shift modulated track circuit trackside equipment, the communication module is connected by CAN with maintenance terminal, and the quantity and the quantity of trackside resonance matching unit of the collection extension set match.Compared with prior art, the utility model have the advantages that monitoring and maintenance facilitate, be easily achieved, on equipment under test without influence and save cost.
Description
Technical field
Trackside monitoring is the utility model is related to, is tieed up more particularly, to a kind of monitoring for frequency shift modulated track circuit trackside equipment
Protecting system.
Background technology
With widely using for ZPW-2000 type non-insulated track circuits, electricity business safeguard unit to track circuit system can
Maintainability proposes requirements at the higher level, monitoring collection point and acquisition range to track circuit, by collection of the conventional needle to interior, expands
Open up outdoor trackside.Because ZPW-2000 frequency shift modulated track circuits outdoor equipment is away from signal box, trackside does not have power supply, trackside
Collecting device power line can not possibly separately spread cable and individually move trackside to from interior, cause electricity business to safeguard that unit is carried out to trackside equipment
Maintenance efficiency is low, and the fault handling time of trackside equipment is longer, easily causes prolonged failure delay, even results in
The generation of D class accidents.
Patent CN201620449431 proposes a kind of monitoring system for trackside signalling arrangement outside railway room, passes through confession
Power supply, outdoor trackside signalling arrangement collector, PLC protocol converters, communication interface extension set and the realization pair of Centralizing inspection station machine
The monitoring of trackside signalling arrangement outside railway room, but although this monitoring system improves failure Deal with Time, but the side gathered
Formula is voltage acquisition, and voltage sensor is directly parallel to main equipment, probably causes the circuit of main equipment to be joined during failure
Number changes, and influences main equipment normal work.
Utility model content
The purpose of this utility model is to provide a kind of monitoring for frequency shift modulated track circuit trackside equipment regarding to the issue above
Maintenance system.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of monitoring and maintenance system for frequency shift modulated track circuit trackside equipment, the system include the collection being located outside
Extension set and the communication module and maintenance terminal positioned at interior, the collection standby electricity of the extension set one end by frequency shift modulated track circuit
Cable is connected with communication module, and the other end is connected with the trackside resonance matching unit in frequency shift modulated track circuit trackside equipment, described
Communication module is connected by CAN with maintenance terminal, the quantity and the quantity of trackside resonance matching unit of the collection extension set
Match.
The collection extension set includes centre path current sensor, the centre path current sensor and trackside resonance matching list
Transmitting terminal cable side, the receiving terminal cable side of member connect with rail lead-out wire.
The connected mode of the collection extension set includes Y-connection mode or bus connecting mode.
The communication module includes communication extension set and outdoor-monitoring communication processor, and the communication extension set divides with collection respectively
Machine is connected with outdoor-monitoring communication processor, and the outdoor-monitoring communication processor is connected with maintenance terminal.
The communication extension set includes power subsystem, communications controller and RS485 Transmit-Receive Units, the power subsystem point
It is not connected with communications controller and RS485 Transmit-Receive Units, the communications controller passes through standby electricity cable and collection
Extension set connects.
The power subsystem include exchange isolating transformer, it is described exchange isolating transformer respectively with external power supply, communicate
Transmission control unit (TCU) connects with RS485 Transmit-Receive Units.
The RS485 Transmit-Receive Units include RS485 drivers.
The outdoor-monitoring communication processor includes embedded-type ARM control chip and is arranged on embedded-type ARM control core
RS485 interfaces, CAN interface, Ethernet interface and USB interface on piece, the RS485 interfaces are connected with communication extension set,
The CAN interface is connected with maintenance terminal.
The collection signal that the outdoor-monitoring communication processor also includes being used to show collection extension set networks with collection extension set
First display screen of state, and the storage card to save historical data.
The maintenance terminal includes host computer, and the host computer is provided with the collection signal for being used for showing collection extension set with adopting
Collection extension set enters the second display screen of net state.
Compared with prior art, the utility model has the advantages that：
(1) by communication module and maintenance terminal disposed within, cooperated with the collection extension set of outdoor, and outdoor
Collection extension set and indoor communication module are attached by ZPW-2000 shift frequencies track standby electricity cable in itself, this
Connected mode solves the problems, such as that trackside collecting device power line can not possibly separately spread cable and individually move trackside, Er Qiezhi to from interior
The supply lines and data line that use the cable in stock of frequency shift modulated track circuit as collection extension set are connect, greatlys save cost,
Practical performance is strong.
(2) collecting unit uses centre path current sensor non-direct contact frequency shift modulated track circuit, is originally set so as to ensure that
Standby trackside resonance matching unit transmitting terminal, receiving terminal cable side electric current and the rail of can gathering is drawn line current and not set to tested
It is standby to impact.
(3) gathering the connected mode of extension set includes Y-connection mode or bus connecting mode, can be according to actual conditions
Independently selected, using flexible, it is easy to accomplish.
(4) voltage can be divided into by the communication extension set in communication module by the exchange isolating transformer inside power subsystem
Two groups of outputs, one group is transferred to communications controller, and another group is transferred to RS485 Transmit-Receive Units, realizes high efficiency power, carries
High power supplying efficiency, saves cost.
(5) RS485 interfaces, the CAN that outdoor-monitoring communication processor includes ARM control chips and is arranged on chip are total
Line interface, Ethernet interface and USB interface, the smooth data of communication extension set and maintenance terminal can be realized by above-mentioned interface
Transmitting-receiving, and by USB interface, outdoor-monitoring communication processor can be upgraded, ensure that the stability of communication.
(6) outdoor-monitoring communication processor also includes the first display screen and storage card, can be shown by the first display screen
The environment temperature for entering net state and the collection amplitude of signal, carrier frequency, low frequency and test point of collection extension set, can be with by storage card
Above-mentioned data are preserved, are easy to staff to check historical information at any time.
(7) maintenance terminal includes host computer, and host computer is provided with second display screen, can gather entering for extension set with real-time display
Net state and the environment temperature for gathering the amplitude of signal, carrier frequency, low frequency and test point, while can be looked into real-time display according to user
See the collection extension set data and curves of regulation display.
The displaying of data is can be achieved in (8) first display screens and second display screen, and all collection extension sets of record trackside are adopted
Collect data, by setting two display screens, on the one hand can aid in whether compare gathered data content consistent, so as to send out in time
Existing system problem, on the other hand also allows for the data that attendant checks collection in different location, convenient function is strong.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of communication extension set；
Fig. 3 is the structural representation of collection extension set；
Wherein, 1 is maintenance terminal, and 2 be communication module, and 3 be collection extension set, and 21 be outdoor-monitoring communication processor, and 22 are
Communicate extension set, and 221 be RS485 Transmit-Receive Units, and 222 be power subsystem, and 223 be communications controller, and 31 be termination power, and 32
It is signal transmission unit for power supply, 33,34 be MCU controllers, and 35 be DSP signal processors, and 36 be sample circuit, and 37 are
Centre path current sensor, 38 be digital thermometer, and 39 be toggle switch, and 331 be electric force carrier transmission line, and 332 be that CAN is total
Line, 333 be RS485 buses.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with the utility model
Implemented premised on technical scheme, give detailed embodiment and specific operating process, but guarantor of the present utility model
Shield scope is not limited to following embodiments.
A kind of monitoring and maintenance system for frequency shift modulated track circuit trackside equipment is present embodiments provided, including is located outside
Collection extension set 3 and the communication module 2 and maintenance terminal 1 positioned at interior, collection extension set 3 one end pass through frequency shift modulated track circuit
Standby electricity cable is connected with communication module 2, and the other end connects with the trackside resonance matching unit in frequency shift modulated track circuit trackside equipment
Connect, communication module 2 is connected by CAN with maintenance terminal 1, gathers the quantity of extension set 3 and the number of trackside resonance matching unit
Amount matches.
Wherein, collection extension set 3 includes centre path current sensor, centre path current sensor and trackside resonance matching unit
Transmitting terminal cable side, receiving terminal cable side connects with rail lead-out wire.The connected mode of collection extension set 3 includes Y-connection side
Formula or bus connecting mode.Communication module 2 includes communication extension set 22 and outdoor-monitoring communication processor 21, and communication extension set 22 is distinguished
It is connected with collection extension set 3 and outdoor-monitoring communication processor 21, outdoor-monitoring communication processor 21 is connected with maintenance terminal 1.It is logical
Letter extension set 22 includes power subsystem 222, communications controller 223 and RS485 Transmit-Receive Units 221, power subsystem 222 respectively with
Communications controller 223 and RS485 Transmit-Receive Units 221 connect, and communications controller 223 passes through standby electricity cable and collection
Extension set 3 connects.Power subsystem 222 include exchange isolating transformer, exchange isolating transformer respectively with external power supply, communications
Controller 223 and RS485 Transmit-Receive Units 221 connect.RS485 Transmit-Receive Units 221 include the enhanced RS485 drivings with isolation
Device, the RS485 drivers are used from transmission circuit.Outdoor-monitoring communication processor 21 include embedded-type ARM control chip and
RS485 interfaces, CAN interface, Ethernet interface and the USB interface being arranged on embedded-type ARM control chip, RS485 connect
Mouth is connected with communication extension set 22, and CAN interface is connected with maintenance terminal 1.Outdoor-monitoring communication processor 21 also includes being used for
The collection signal of display collection extension set 3 enters the first display screen of net state, and the storage to save historical data with collection extension set 3
Card.Maintenance terminal 1 includes host computer, and host computer is provided with the collection signal for being used to show collection extension set 3 and networked with collection extension set 3
The second display screen of state.
The system realized according to said structure is as shown in figure 1, it can be seen that the system is used for ZPW-2000 tracks
Circuit, the several modules mainly included are collection extension set 3, communicate extension set 22, outdoor-monitoring communication processor 21 and maintenance terminal
1, wherein maintenance terminal 1, outdoor-monitoring communication processor 21, communication extension set 22 is placed on interior, and collection extension set 3 is placed on outdoor.Room
External monitor communication processor 21 is connected with communication extension set 22, and is connected with maintenance terminal 1, and communication extension set 22 connects with collection extension set 3
Connect.
Wherein, extension set 3 is gathered by 5 centre path current sensor pincers in trackside resonance matching unit transmitting terminal, reception
End cable side electric current and rail lead-out wire, the sampled resistance of electric current are nursed one's health after being converted to voltage signal, AD conversion, DSP solutions
Code goes out fsk signal amplitude, carrier frequency, low frequency signal, and decoding data is SPI data by SPI interface forwarding, and ARM control chips are same
When read temperature sensor data, outdoor ZPW-2000 track circuits standby electricity cable is output to after repacking.
Communication module 2 includes communication extension set 22 and outdoor-monitoring communication processor 21, and communication extension set 22 passes through ZPW-2000
Track circuit standby electricity cable is connected with collection extension set 3.The extension set 22 that communicates includes power subsystem 222, communications controller
223rd, RS485 Transmit-Receive Units 221, power subsystem 222 are connected with communications controller 223, at the same with RS485 Transmit-Receive Units
221 connections.Communication extension set 22 is simultaneously outdoor trackside collection point that is up, descending, entering the station, be outbound, sending, receiving 8 directions
Machine 3 provides 220V exchanges input or the input of 300V direct currents, wherein No. 4 power subsystem 222,4 communications controllers 223,4 tunnels
RS485 Transmit-Receive Units 221 are arranged in a communication extension set 22, and 8 direction equipment need 2 communication extension sets 22 altogether.Outdoor-monitoring
Communication processor 21 is connected with communication extension set 22 using the RS485 interfaces isolated, the communications control in control communication extension set 22
The data transmit-receive of device 223 processed, the data storage of reception in TF card, data are forwarded to maintenance terminal 1 after repacking, and
Real-time display goes out all collection extension sets 3 and enters net state and the data message of collection on 4.3 inches of liquid crystal display.Outdoor-monitoring communicates
Processor 21, which has, checks the functions such as historical record, modification date-time, can upgrade software by USB interface.Outdoor-monitoring
Communication processor 21 uses CAN or Ethernet with the interface of maintenance terminal 1.Maintenance terminal 1 includes host computer.System is working
When, maintenance terminal 1 receives the data of outdoor-monitoring communication processor 21, and real-time display goes out all collections point in ZPW-2000 sections
The working condition of machine 3, and in failure alarm.The extension set 22 that communicates is arranged in the high Standard Machine cages of 19 inches of wide 3U.Outdoor prison
Communication processor 21 is surveyed to be arranged in the high Standard Machine cages of 19 inches of wide 2U.
In the present embodiment, the collection extension set 3 of proposition, current signal is mainly gathered by centre path current sensor, but
It is that the concrete structure of the collection extension set 3 includes：Signal acquisition module, it is connected with track circuit, for the signal to track circuit
It is acquired and sampling processing；Signal transmission module, it is connected with signal acquisition module, for the letter for gathering signal acquisition module
Number transmit to the external world；Power supply 32, is connected with signal acquisition module and signal transmission module respectively, for for signal acquisition mould
Block and signal transmission module power supply.
Wherein, signal acquisition module includes：Signal acquisition sensor, is connected with track circuit, for track circuit
Signal is acquired；Sample circuit 36, it is connected with signal acquisition sensor, the signal for being gathered to signal acquisition sensor enters
Row sampling；DSP signal processors 35, it is connected respectively with sample circuit 36 and signal transmission module, for being obtained to sample circuit 36
The sampled signal arrived carries out signal transacting.Signal acquisition sensor includes centre path current sensor 37, centre path current sensing
Device 37 is connected with track circuit and sample circuit 36 respectively.Sample circuit 36 includes a/d converter and multiple sampling channels, sampling
The quantity of passage and the quantity of signal acquisition sensor match, sampling channel respectively with signal acquisition sensor and a/d converter
Connection, a/d converter are connected with DSP signal processors 35.Sampling channel include sampling resistor, voltage-stabiliser tube, in-phase amplification circuit and
Low pass filter, the sampling resistor are connected with low pass filter, and the voltage-stabiliser tube is respectively with low pass filter and with mutually amplification
Circuit connects.Signal transacting includes data filtering and fsk signal decodes.Signal transmission module includes：Signal transmission unit 33, use
Transmitted in the signal for gathering signal acquisition module to the external world；Signal transmission control unit, respectively with signal acquisition module and letter
Number transmission unit 33 connects, for transmitting-receiving of the control signal transmission unit 33 to signal.Signal transmission unit 3 includes power carrier
Transmission line 331, CAN 332 or RS485 buses 333.Signal transmission control unit includes：MCU controllers 34, respectively with letter
Number acquisition module and signal transmission unit 33 connect, for transmitting-receiving of the control signal transmission unit 33 to signal；Toggle switch 39,
It is connected with MCU controllers 34, the transmission means for switching signal transmission unit 33；Digital thermometer 38, with MCU controllers 34
Connection, for feeding back ambient temperature to MCU controllers 34.Device also includes termination power 31, and termination power 31 is transmitted with signal
Module is connected thereto when using electric force carrier transmission line.
The structure for the collection extension set realized according to said structure to the modules in figure as shown in figure 3, retouch below
State：Be sample circuit 36 first, there is 8 passages in the present embodiment inside sample circuit 36, each passage have 5V voltage-stabiliser tube,
In-phase amplification circuit and low pass filter, 8 passages, which are connected to one, has 8 passage DAS, and built-in 16, bipolarity inputs, together
The a/d converter of sampling is walked, using same phase discharge circuit, at utmost reduces the influence to current sensor sample resistance value, by
In sampling voltage≤1V, signal needs to amplify, and sample resistance selects 0.1% precision.DSP signal processors 35 are completed AD and adopted
Sample, data filtering, fsk signal decoding, the work of data transfer.MCU controllers 34, MCU controls are transmitted data to by SPI interface
The transmitting-receiving of the control signal transmission unit 33 of device 34 processed, SPI interface receive the decoded data of DSP.DSP program is placed in MCU,
By SPI interface when upper electric, the program that FLASH inside MCU be present is transferred in DSP internal memories.To distinguish each site address,
One serial ports is used to write ID number into FLASH.The temperature of data temperature meter is read and write by monobus mode simultaneously.Signal transmits
Unit 33 uses the optional module of veneer, can insert power line carrier module or CAN drive module according to scene needs or RS485 is total
Line drive module.Module control signal is determined by the position of toggle switch 39.Power line carrier module supporting bus type, star network are opened up
Flutter structure.To make power carrier signal should not be interfered to ZPW-2000 equipment, plc communication frequency point ranges should 30kHz with
On.± 5V, 3.3V, 1.2V needed for the offer signal acquisition module of power supply 32 and signal transmission module.To avoid collection point
Machine starting current causes greatly power supply chip overcurrent protection, from maximum operating currenbt 3A power supply chip.Termination power 31 receives
The transmission and reception of power carrier signal, there is provided lightning protection, avoid signal attenuation, isolate with remote feeding power system.Toggle switch 39
According to the module configuration parameter of scene selection, MCU controllers 34 provide different control signals according to the state of toggle switch 39.
The course of work of the device is as follows：Centre path current sensor 37 transmits the signal of collection to sample circuit first
36, common transport to a/d converter is entered after sample circuit 36 is sampled by multiple sampling channels to the signal of each sensor
Row analog-to-digital conversion, and the signal after conversion is transmitted to DSP signal processors 35, carry out data by DSP signal processors 35
After filtering and fsk signal decoding, then transmit to signal transmission control unit, the MCU controllers of signal transmission control unit 34
Transmission means is selected according to the setting of toggle switch 39, after MCU controllers 34 read the data of toggle switch 39, according to reading result
It is the serial ports corresponding with transmission means by the pin configuration of the control module of MCU controllers 34, so that signal transmission is single
First 33 pairs of signals are received and dispatched, and the transmitting-receiving approach of signal transmission unit 33 can be electric force carrier transmission line 331, CAN 332
Or one kind in RS485 buses 333, selected according to actual conditions, in the case of CAN and RS485 buses, MCU
The direct control signal transmission unit of controller realizes the transmitting-receiving of signal, under the transmission means of power carrier, MCU controllers according to
The clock of setting, control signal transmission unit realize that the periodic transmission of signal is sent with signal amplitude jump, with communicating point
Machine is communicated.The collection extension set can select a variety of different transmission means, and signal transmits by setting toggle switch 39
Select a kind of configuration in unit in three kinds of modes of electric force carrier transmission, RS485 transmission or CAN transmission every time, significantly
The volume of collection extension set is reduced, while also saves the manufacturing cost of collection extension set, so as to save monitoring and maintenance system
Cost.
Claims (10)
1. a kind of monitoring and maintenance system for frequency shift modulated track circuit trackside equipment, it is characterised in that the system includes being located at
Outdoor collection extension set and the communication module and maintenance terminal positioned at interior, described collection extension set one end pass through shift frequency track electricity
The standby electricity cable on road is connected with communication module, the other end and the trackside resonance matching unit in frequency shift modulated track circuit trackside equipment
Connection, the communication module are connected by CAN with maintenance terminal, the quantity and trackside resonance matching list of the collection extension set
The quantity of member matches.
2. the monitoring and maintenance system according to claim 1 for frequency shift modulated track circuit trackside equipment, it is characterised in that institute
Stating collection extension set includes centre path current sensor, the transmitting terminal of the centre path current sensor and trackside resonance matching unit
Cable side, receiving terminal cable side connect with rail lead-out wire.
3. the monitoring and maintenance system according to claim 1 for frequency shift modulated track circuit trackside equipment, it is characterised in that institute
Stating the connected mode of collection extension set includes Y-connection mode or bus connecting mode.
4. the monitoring and maintenance system according to claim 1 for frequency shift modulated track circuit trackside equipment, it is characterised in that institute
Stating communication module includes communication extension set and outdoor-monitoring communication processor, and the communication extension set is respectively with gathering extension set and outdoor prison
Communication processor connection is surveyed, the outdoor-monitoring communication processor is connected with maintenance terminal.
5. the monitoring and maintenance system according to claim 4 for frequency shift modulated track circuit trackside equipment, it is characterised in that institute
Stating communication extension set includes power subsystem, communications controller and RS485 Transmit-Receive Units, and the power subsystem passes with communicating respectively
Defeated controller is connected with RS485 Transmit-Receive Units, and the communications controller is connected by standby electricity cable with collection extension set.
6. the monitoring and maintenance system according to claim 5 for frequency shift modulated track circuit trackside equipment, it is characterised in that institute
State power subsystem include exchange isolating transformer, it is described exchange isolating transformer respectively with external power supply, communications controller
Connected with RS485 Transmit-Receive Units.
7. the monitoring and maintenance system according to claim 5 for frequency shift modulated track circuit trackside equipment, it is characterised in that institute
Stating RS485 Transmit-Receive Units includes RS485 drivers.
8. the monitoring and maintenance system according to claim 4 for frequency shift modulated track circuit trackside equipment, it is characterised in that institute
Stating outdoor-monitoring communication processor includes embedded-type ARM control chip and the RS485 being arranged on embedded-type ARM control chip
Interface, CAN interface, Ethernet interface and USB interface, the RS485 interfaces are connected with communication extension set, the CAN
Interface is connected with maintenance terminal.
9. the monitoring and maintenance system according to claim 4 for frequency shift modulated track circuit trackside equipment, it is characterised in that institute
The collection signal that stating outdoor-monitoring communication processor also includes being used to show collection extension set enters the first of net state with collection extension set
Display screen, and the storage card to save historical data.
10. the monitoring and maintenance system according to claim 1 for frequency shift modulated track circuit trackside equipment, it is characterised in that
The maintenance terminal includes host computer, and the host computer is provided with the collection signal for being used to show collection extension set and entered with collection extension set
The second display screen of net state.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720795180.6U CN206991538U (en) | 2017-07-03 | 2017-07-03 | Monitoring and maintenance system for frequency shift modulated track circuit trackside equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720795180.6U CN206991538U (en) | 2017-07-03 | 2017-07-03 | Monitoring and maintenance system for frequency shift modulated track circuit trackside equipment |
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| CN206991538U true CN206991538U (en) | 2018-02-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221149A (en) * | 2017-07-03 | 2017-09-29 | 上海铁路通信有限公司 | Monitoring and maintenance system for frequency shift modulated track circuit trackside equipment |
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2017
- 2017-07-03 CN CN201720795180.6U patent/CN206991538U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221149A (en) * | 2017-07-03 | 2017-09-29 | 上海铁路通信有限公司 | Monitoring and maintenance system for frequency shift modulated track circuit trackside equipment |
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