CN205880122U - Railway link up line cord running state monitoring devices - Google Patents
Railway link up line cord running state monitoring devices Download PDFInfo
- Publication number
- CN205880122U CN205880122U CN201620904154.8U CN201620904154U CN205880122U CN 205880122 U CN205880122 U CN 205880122U CN 201620904154 U CN201620904154 U CN 201620904154U CN 205880122 U CN205880122 U CN 205880122U
- Authority
- CN
- China
- Prior art keywords
- signal
- low
- speed
- connects
- outfan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model provides a railway link up line cord running state monitoring devices, belongs to the railway and link up line cord on -line monitoring field. Include that it link up line cord, casing and electrical unit, its characterized in that to be surveyed the railway: setting up high -speed signal acquisition unit, low -speed signal acquisition unit and processing system in the casing, setting up high frequency sensor and low frequency sensor respectively at the iron shielded layer earthing conductor who is link up the line cord by the survey railway, high -speed signal acquisition unit and low -speed signal acquisition unit are connected respectively to the output of high frequency sensor and low frequency sensor, and processing system's power port is connected to electrical unit's output. To " the retrieval trouble " before the cable damage, implement online early warning, the power supply department of being convenient for in advance or have planned maintenance, avoids because of cable sudden failure causes the power failure, the adverse effect that reduces the economic loss that causes because of having a power failure and bring enterprise's production and people life, enhancing power supply reliability.
Description
Technical field
This utility model belongs to railway run-through circuit on-line monitoring of cable field, a kind of railway run-through circuit electricity
Cable monitoring running state device.
Background technology
Through track on railway is used for directly can for railway each station electric horn interlocking apparatus and the offer of interval self-closing signaling point
Lean on, the power circuit of uninterrupted power source.
The application of railway run-through circuit cable monitoring running state technology is one of effective means realizing repair based on condition of component,
Line early warning is to detect the running status of cable under working voltage, actual response cable insulation level.Oversheath is exhausted
Edge status monitoring is to utilize circulation value on steel armour, judges cable jacket state of insulation.And utilize mechanics of communication to carry in real time
Inspection declaration is repaiied and related personnel, i.e. reaches scheduled overhaul before accident, it is to avoid fault spread and unnecessary economic loss.
Utility model content
According to above deficiency of the prior art, the purpose of this utility model is to provide one to realize railway run-through circuit
Cable monitoring running state, for transient state earth fault and the oversheath fault of cable, proposes the running status prison of a kind of cable
Survey device, the transient state earth fault before railway run-through circuit cable is damaged, real-time online early warning, it is simple to power supply department in advance or
Planned maintenance, it is to avoid because cable catastrophic failure causes power failure.By the power current of in real time monitoring cable metal sheath and
Variable quantity, can find the insulation fault of cable metal sheath in time.
This utility model solves its technical problem the technical scheme is that railway run-through circuit cable running status prison
Survey device, including tested railway run-through circuit cable, housing and power subsystem, it is characterised in that: high speed signal is set in housing
Collecting unit, low speed signal collecting unit and processing system, the metal screen layer ground connection at tested railway run-through circuit cable is led
Body is respectively provided with the outfan of high frequency sensors and low-frequency sensor, high frequency sensors and low-frequency sensor and connects letter at a high speed respectively
Number collecting unit and low speed signal collecting unit, the outfan of power subsystem connects the power port of processing system.
High-speed signal acquisition unit includes signal conditioner A, high-speed a/d converter and high-speed comparator, and low speed signal is adopted
Collection unit includes that signal conditioner B and low-speed a/d converter, described processing system include FPGA, dynamic memory and process
Device, the outfan of high frequency sensors connects the input of signal conditioner A, and the outfan of signal conditioner A is respectively by a high speed
A/D converter and high-speed comparator connect the signal input part of FPGA, and the outfan of low-frequency sensor connects signal conditioner B's
Input, the outfan of signal conditioner B connects the signal input part of FPGA, the data terminal of FPGA by low-speed a/d converter
Arranging connection memorizer, its outfan connects the data terminal of processor.Low-frequency sensor is low-frequency current sensor, its cutoff frequency
Rate is 50Hz.High frequency sensors is High Frequency Current Sensor, and its cut-off frequency is not less than 2MHz.Described high-speed signal acquisition unit
Sample frequency be not less than 2MHz.
Wherein preferred version is:
The communication terminal of described processor connects network by Ethernet chip.By Ethernet by data with network communication
Mode uploads to host computer.User is except monitoring in addition to running status on unit, it is also possible to collected by network, single tune
With, analyze and process.
The input of described processing system arranges transformer substation voltage collecting unit, described transformer substation voltage collecting unit
It is included at the open delta of substation bus bar secondary side PT and voltage sensor, signal conditioner C and A/D converter, A/D are installed
Transducer connects the signal input part of FPGA.Voltage sensor gathers substation bus bar secondary side PT open delta voltage signal,
Carry out Gain tuning through signal conditioning circuit and give A/D converter.
This utility model railway run-through circuit cable monitoring running state device is had the beneficial effect that by quilt
The metal screen layer earth conductor surveying railway run-through circuit cable arranges this device, it is achieved that
1, the railway run-through online fault pre-alarming of circuit cable can be realized, and trouble point distance can be explicitly indicated；
2, railway run-through circuit cable jacket insulation state monitoring can be realized；
3, the change of supply transformer residual voltage can be monitored, to reduce device rate of false alarm；
4, do not change the cable method of operation and structure, be not take up existing system resource, cable grounding conductor is installed height
Frequently current sensor and low-frequency current sensor, safe and reliable；
5, device has GPS communication, networking communication, data exchange and the function uploaded, can be as railway power supply host computer
System platform front end monitoring device uses, flexible configuration.
Accompanying drawing explanation
Fig. 1 high-speed signal acquisition of the present utility model and the functional-block diagram of data handling system；
The inside functional-block diagram of FPGA embodiment in Fig. 2；
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiment of the present utility model is described further:
Embodiment 1:
As shown in Figure 1 and Figure 2, railway run-through circuit cable monitoring running state device, including tested railway run-through circuit electricity
Cable, housing and power subsystem, arrange high-speed signal acquisition unit, low speed signal collecting unit and processing system, at quilt in housing
The metal screen layer earth conductor surveying railway run-through circuit cable is respectively provided with high frequency sensors and low-frequency sensor, high frequency sensing
The outfan of device and low-frequency sensor connects high-speed signal acquisition unit and low speed signal collecting unit respectively, power subsystem defeated
Go out end and connect the power port of processing system.
High-speed signal acquisition unit includes signal conditioner A, high-speed a/d converter and high-speed comparator, and low speed signal is adopted
Collection unit includes that signal conditioner B and low-speed a/d converter, described processing system include FPGA, dynamic memory and process
Device, the outfan of high frequency sensors connects the input of signal conditioner A, and the outfan of signal conditioner A is respectively by a high speed
A/D converter and high-speed comparator connect the signal input part of FPGA, and the outfan of low-frequency sensor connects signal conditioner B's
Input, the outfan of signal conditioner B connects the signal input part of FPGA, the data terminal of FPGA by low-speed a/d converter
Arranging connection memorizer, its outfan connects the data terminal of processor.
The communication terminal of processor connects network by Ethernet chip.By Ethernet by data with on network communication mode
Pass to host computer.User is except monitoring in addition to running status on unit, it is also possible to collected by network, single call, analyzes
And process.
The outfan of railway power supply master system platform arranges display and buzzer.Can read intuitively data and
Reminding alarm.
FPGA i.e. FPGA gate array, including high-speed a/d interface, threshold logic control, dynamic RAM interface,
Command register and processor interface, its modular structure mode is common prior art.During use, high-speed a/d interface connects height
The outfan of speed A/D converter, threshold logic controls to connect high-speed comparator, and dynamic memory interface (DMI) connects dynamic memory
DRAM, processor interface connects the input of processor.
Operation principle and the process of use:
On the metal screen layer earth conductor of railway run-through circuit cable run, through High Frequency Current Sensor, access
One High Frequency Current Sensor and low frequency (50Hz) current sensor, on-line early warning monitoring dress is received in the output of this sensor
Putting, this monitoring device is made up of ultra high speed signal collection, low speed signal collection and data handling system etc..
The cut-off frequency collected by the high frequency sensors electro-magnetic transient signal more than 2MHz, is carried out through signal conditioning circuit
Gain tuning and low-pass filtering give high speed analog-to-digital conversion and high-speed comparator.The cut-off frequency collected by low-frequency sensor is
The low frequency power frequency component of 50Hz, carries out Gain tuning and low-pass filtering gives low speed analog digital conversion through signal conditioning circuit.Existing
Decide whether to start high speed analog-to-digital conversion and storage according to the output of high-speed comparator under the control of field programmable logic gate array, in
Central processor obtains data effective information by interruption, through algorithm process, by Ethernet by data with network communication mode
Upload to host computer.
Embodiment 2:
On the basis of embodiment 1, the input of processing system arranges transformer substation voltage collecting unit, described transformer station
Voltage acquisition unit be included at the open delta of substation bus bar secondary side PT install voltage sensor, signal conditioner C and
A/D converter, A/D converter connects the signal input part of FPGA.Gathered substation bus bar secondary side PT by voltage sensor to open
Mouth triangular voltages signal, carries out Gain tuning through signal conditioning circuit and gives A/D converter.
Processor and the setting of FPGA mentioned in this utility model, input, store and use, for common computer specialty
Personnel are grasped.
Claims (4)
1. railway run-through circuit cable monitoring running state device, including tested railway run-through circuit cable, housing and power supply list
Unit, it is characterised in that: high-speed signal acquisition unit, low speed signal collecting unit and processing system are set in housing, at tested ferrum
The metal screen layer earth conductor of the through line cord in road is respectively provided with high frequency sensors and low-frequency sensor, high frequency sensors and
The outfan of low-frequency sensor connects high-speed signal acquisition unit and low speed signal collecting unit, the outfan of power subsystem respectively
Connect the power port of processing system.
Railway run-through circuit cable monitoring running state device the most according to claim 1, it is characterised in that: described height
Velocity signal capturing unit includes that signal conditioner A, high-speed a/d converter and high-speed comparator, low speed signal collecting unit include
Signal conditioner B and low-speed a/d converter, described processing system includes FPGA, dynamic memory and processor, high frequency sensing
The outfan of device connects the input of signal conditioner A, the outfan of signal conditioner A respectively by high-speed a/d converter and
High-speed comparator connects the signal input part of FPGA, and the outfan of low-frequency sensor connects the input of signal conditioner B, signal
The outfan of conditioner B connects the signal input part of FPGA by low-speed a/d converter, and the data terminal of FPGA arranges connection storage
Device, its outfan connects the data terminal of processor.
Railway run-through circuit cable monitoring running state device the most according to claim 2, it is characterised in that: described place
The communication terminal of reason device connects network by Ethernet chip.
Railway run-through circuit cable monitoring running state device the most according to claim 1, it is characterised in that: described place
The input of reason system arranges transformer substation voltage collecting unit, and described transformer substation voltage collecting unit is included in substation bus bar
Installing voltage sensor, signal conditioner C and A/D converter at the open delta of secondary side PT, A/D converter connects FPGA's
Signal input part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620904154.8U CN205880122U (en) | 2016-08-17 | 2016-08-17 | Railway link up line cord running state monitoring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620904154.8U CN205880122U (en) | 2016-08-17 | 2016-08-17 | Railway link up line cord running state monitoring devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205880122U true CN205880122U (en) | 2017-01-11 |
Family
ID=57704804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620904154.8U Active CN205880122U (en) | 2016-08-17 | 2016-08-17 | Railway link up line cord running state monitoring devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205880122U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950474A (en) * | 2017-03-22 | 2017-07-14 | 哈红 | The upkeep operation method of railway automatic blocking line |
| CN107238498A (en) * | 2017-08-01 | 2017-10-10 | 四川霄云航空科技有限公司 | A kind of device for turboshaft engine vibration monitoring data |
| CN107345928A (en) * | 2017-08-28 | 2017-11-14 | 云南神谷科技股份有限公司 | A kind of soil pH value sensor with metal electrode |
| CN109119979A (en) * | 2018-10-25 | 2019-01-01 | 西南交通大学 | A kind of cable fault protective device and its guard method |
| CN112782540A (en) * | 2020-12-29 | 2021-05-11 | 国网辽宁省电力有限公司鞍山供电公司 | High-voltage cable on-line monitoring and fault point positioning device |
| CN114236315A (en) * | 2021-12-23 | 2022-03-25 | 国网山东省电力公司烟台供电公司 | Submarine cable running state monitoring device and monitoring method thereof |
-
2016
- 2016-08-17 CN CN201620904154.8U patent/CN205880122U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950474A (en) * | 2017-03-22 | 2017-07-14 | 哈红 | The upkeep operation method of railway automatic blocking line |
| CN106950474B (en) * | 2017-03-22 | 2019-09-27 | 保定钰鑫电气科技有限公司 | The upkeep operation method of railway automatic blocking line |
| CN107238498A (en) * | 2017-08-01 | 2017-10-10 | 四川霄云航空科技有限公司 | A kind of device for turboshaft engine vibration monitoring data |
| CN107345928A (en) * | 2017-08-28 | 2017-11-14 | 云南神谷科技股份有限公司 | A kind of soil pH value sensor with metal electrode |
| CN109119979A (en) * | 2018-10-25 | 2019-01-01 | 西南交通大学 | A kind of cable fault protective device and its guard method |
| CN112782540A (en) * | 2020-12-29 | 2021-05-11 | 国网辽宁省电力有限公司鞍山供电公司 | High-voltage cable on-line monitoring and fault point positioning device |
| CN114236315A (en) * | 2021-12-23 | 2022-03-25 | 国网山东省电力公司烟台供电公司 | Submarine cable running state monitoring device and monitoring method thereof |
| CN114236315B (en) * | 2021-12-23 | 2023-12-29 | 国网山东省电力公司烟台供电公司 | Submarine cable running state monitoring device and monitoring method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205880122U (en) | Railway link up line cord running state monitoring devices | |
| CN212207527U (en) | Transformer on-line monitoring device based on multi-source information fusion | |
| CN203070069U (en) | Integrated monitoring system for power cable tunnel | |
| CN209102839U (en) | Movable type cable monitors prior-warning device on-line | |
| CN106291201A (en) | The lightning monitoring of a kind of lightning protection box and deterioration state monitoring system and method | |
| CN106093720A (en) | High-voltage cable state monitoring system based on protective grounding case and its implementation | |
| CN204177907U (en) | Distribution Network Frame ceases to be busy running status record ripple and fault diagnosis system | |
| CN206460129U (en) | Exchange insulation detection device | |
| CN205880105U (en) | Power cable integrated monitoring platform | |
| CN203241076U (en) | Distributed online ring main unit monitoring device | |
| CN207335915U (en) | A kind of cable monitoring system | |
| CN101819244A (en) | On-line early warning method of failure of cross-linked polyethylene power cable | |
| CN103323655B (en) | Non-contact alternating current and direct current crosstalk online detecting device and non-contact alternating current and direct current crosstalk online detecting method | |
| CN103389437A (en) | Device and method for monitoring shielding current of secondary control cable of transformer substation in real time | |
| CN205038280U (en) | Direct current current conversion station earthing pole on -line monitoring system | |
| CN204575733U (en) | A kind of high-tension cable sheath grounding current on-line monitoring system | |
| CN104061849B (en) | Winding deformation on-line detecting system based on transformator overvoltage signal and response | |
| CN105445633A (en) | High-voltage cable protective layer loop current multi-state monitoring device | |
| CN205844461U (en) | A kind of inside switch cabinet high pressure equipment partial discharge monitoring system | |
| CN104730978A (en) | Real-time data collection distributed type integration system based on big data | |
| CN202814597U (en) | High-voltage power transmission line temperature measuring system | |
| CN105277903A (en) | Method for performing remote monitoring on UPS | |
| CN104020393B (en) | A kind of with electrical network one-phase short-circuit current Fault Locating Method | |
| CN207036976U (en) | Lightning protection facility intelligent online monitoring system | |
| CN207074258U (en) | Monitor the device of communication base station and electric power power supply state |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |