CN217931811U - Rail insulation integrated test recorder based on GPS time synchronization - Google Patents
Rail insulation integrated test recorder based on GPS time synchronization Download PDFInfo
- Publication number
- CN217931811U CN217931811U CN202222651489.1U CN202222651489U CN217931811U CN 217931811 U CN217931811 U CN 217931811U CN 202222651489 U CN202222651489 U CN 202222651489U CN 217931811 U CN217931811 U CN 217931811U
- Authority
- CN
- China
- Prior art keywords
- measurement
- gps signal
- rail insulation
- storage unit
- module
- 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
Images
Landscapes
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The utility model provides an insulating integrated test record appearance of rail based on GPS to time, including a host computer and two from the machine, the host computer with from machine wireless communication, the intelligence of host computer observes and controls storage unit A and is connected to time module A, LCD display A and rail insulation test major loop with GPS signal respectively, GPS signal receiving antenna A with GPS signal is connected to time module A, rail insulation test major loop and two measurement cable A connects, the intelligence of following the machine observes and controls storage unit B respectively with GPS signal is connected to time module B, LCD display B, rail insulation test follows return circuit and two measurement cable B connects. The utility model discloses showing and improving rail insulation test precision and test accuracy, having simplified the insulating test procedure of rail, having promoted rail insulation test efficiency, reduced the human cost of rail insulation test.
Description
Technical Field
The utility model belongs to rail insulation test field, in particular to rail insulation integrated test record appearance based on GPS to time.
Background
Based on the advantages of energy conservation, environmental protection, convenient travel and promotion of urban economic life development, urban rail transit develops rapidly in more and more cities, and in order to meet the increasing passenger transportation demand, the passenger capacity of trains and the departure density of trains are increased day by day. The high density and the heavy load of the train bring the problem of the increase of stray current, and the problem of the corrosion of the stray current to metal pipelines along the track traffic is increasingly prominent. In the urban rail transit direct-current traction power supply system, steel rails are used as negative backflow in most domestic projects, and the magnitude of stray current is in decisive relation with the insulation of the steel rails to the ground. Therefore, the regular insulation test of the steel rail and the timely understanding of the insulation state of the steel rail to the ground are one of the important measures for reducing the stray current leakage.
In the existing urban rail transit direct-current power supply system, the steel rail insulation test is mainly based on the method and the process for testing the steel rail insulation resistance according to the national standard or the European standard, and the method has the following defects:
1. the traditional steel rail insulation resistance test method is complicated and complex, and because the steel rails are usually tested by hundreds of meters or even 1000 meters, testers are scattered and far away from each other, and communication among the testers is inconvenient.
2. The traditional steel rail insulation resistance test is difficult to filter out environmental stray current, so that a real test result cannot be accurately reflected.
3. The traditional steel rail insulation resistance test process consumes time and labor, the test efficiency is lower, and the labor cost is higher.
4. Various data in the traditional steel rail insulation resistance test process need to be read by naked eyes, and certain measurement errors exist.
5. In the traditional steel rail insulation resistance test process, all data records need to be recorded manually, and data recording errors are difficult to avoid.
6. The more scattered measuring instrument and the mixed and disorderly wiring that traditional rail insulation resistance test related are not friendly enough to tester use and measure.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the technical problem who exists among the prior art, provide an insulating integrated test record appearance of rail based on GPS to time, show and improve rail insulation test precision and test accuracy, simplified the insulating test procedure of rail, retrench and integrated rail insulation test instrument, promoted rail insulation test efficiency, improved the insulating test data record of rail and the efficiency of statistics, reduced the human cost of rail insulation test.
The utility model adopts the technical proposal that: a rail insulation comprehensive test recorder based on GPS time synchronization comprises a host and two slave machines, wherein the host is in wireless communication with the slave machines,
the main machine comprises a GPS signal receiving antenna A, a GPS signal time setting module A, an intelligent measurement and control storage unit A, a lithium battery A, an LCD display A, a measuring cable A and a steel rail insulation testing main loop, wherein the intelligent measurement and control storage unit A is respectively connected with the GPS signal time setting module A, the LCD display A and the steel rail insulation testing main loop, the lithium battery A is respectively connected with the intelligent measurement and control storage unit A, the GPS signal time setting module A and the steel rail insulation testing main loop, the GPS signal receiving antenna A is connected with the GPS signal time setting module A, the steel rail insulation testing main loop is connected with two measuring cables A,
the slave machine comprises a GPS signal receiving antenna B, a GPS signal time synchronization module B, an intelligent measurement and control storage unit B, a lithium battery B, an LCD display B, a measurement cable B and a steel rail insulation test slave loop, wherein the intelligent measurement and control storage unit B is respectively connected with the GPS signal time synchronization module B, the LCD display B and the steel rail insulation test slave loop, the lithium battery B is respectively connected with the intelligent measurement and control storage unit B and the GPS signal time synchronization module B, the GPS signal receiving antenna B is connected with the GPS signal time synchronization module B, the steel rail insulation test slave loop is connected with the measurement cable B.
Further, rail insulation test major loop includes static switch, current-limiting resistor, shunt, current transmitter, voltage transmitter A, anodal measurement port A and negative pole measurement port A, anodal measurement port A, static switch, current-limiting resistor, shunt, lithium cell A and negative pole measurement port A are established ties in proper order, current transmitter's input side with the shunt is connected, its output side with intelligence is observed and controled memory cell A and is connected, voltage transmitter A's input side with anodal measurement port A, negative pole measurement port A are connected, its output side with intelligence is observed and controlled memory cell A and is connected, anodal measurement port A connects by the test rail through measuring cable A, negative pole measurement port A is through measuring cable A ground connection.
Furthermore, the steel rail insulation test secondary loop comprises a voltage transmitter B, a positive electrode measurement port B and a negative electrode measurement port B, the input side of the voltage transmitter B is connected with the positive electrode measurement port B and the negative electrode measurement port B, the output side of the voltage transmitter B is connected with the intelligent measurement and control storage unit B, and the positive electrode measurement port B and the negative electrode measurement port B are respectively connected with a tested steel rail through measurement cables B.
Furthermore, the intelligent measurement and control storage unit A and the intelligent measurement and control storage unit B are the same in structure and respectively comprise a CPU, a power supply module, an input module, an output module, a storage and an external interface, the CPU is respectively connected with the power supply module, the input module, the output module, the storage and the external interface, and the power supply module is connected with the output module.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
1. the utility model discloses automatic measurement record data has promoted the efficiency of test, has simplified the wiring of test, has also reduced the required manpower of test, reduces the human cost.
2. The utility model discloses the measuring result does not receive artificial influence, has promoted the precision and the degree of accuracy of test greatly.
3. The utility model discloses can eliminate environment stray current, can accurately reflect true test result, improve the degree of accuracy of rail insulation resistance test greatly.
4. The utility model discloses a components and parts, spare part be standard type, have small, and the wiring is simple, advantages such as easy to use, its test and use are nimble, both can indoor use, also can outdoor use.
Drawings
FIG. 1 is a schematic view of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a host according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a slave according to an embodiment of the present invention;
fig. 4 is the utility model discloses storage unit A's structural schematic is observed and controled to intelligence.
In the figure: the system comprises a host computer, a slave computer, a 3-tested steel rail, 101-GPS signal receiving antennas A,102-GPS signal time setting modules A, 103-intelligent measurement and control storage units A, 104-lithium batteries A,105-LCD displays A, 106-static switches, 107-current limiting resistors, 108-current dividers, 109-current transmitters, 110-voltage transmitters A, 111-positive electrode measurement ports A, 112-negative electrode measurement ports A,201-GPS signal receiving antennas B,202-GPS signal time setting modules B, 203-intelligent measurement and control storage units B, 204-lithium batteries B,205-LCD displays B, 206-voltage transmitters B, 207-positive electrode measurement ports B, 208-negative electrode measurement ports B,1031-CPU, 1032-power modules, 1033-input modules, 1033-output modules, 1035-memories and 1036-external interfaces.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The embodiment of the utility model provides an insulating integrated test record appearance of rail based on GPS to time, as shown in fig. 1 to fig. 4, it includes a host computer 1 and two from machine 2, host computer 1 with from machine 2 wireless communication.
As shown in fig. 2, the host 1 includes a GPS signal receiving antenna a101, a GPS signal time synchronization module a102, an intelligent measurement and control storage unit a103, a lithium battery a104, an LCD display a105, a measurement cable a, and a steel rail insulation test main loop, the intelligent measurement and control storage unit a103 is respectively connected to the GPS signal time synchronization module a102, the LCD display a105, and the steel rail insulation test main loop, the lithium battery a104 is respectively connected to the intelligent measurement and control storage unit a103, the GPS signal time synchronization module a102, and the steel rail insulation test main loop, and the GPS signal receiving antenna a101 is connected to the GPS signal time synchronization module a 102. The LCD display screen A is used for displaying information such as clocks, measurement data and the like. The main steel rail insulation test loop comprises a static switch 106, a current limiting resistor 107, a shunt 108, a current transducer 109, a voltage transducer A110, an anode measurement port A111 and a cathode measurement port A112, wherein the anode measurement port A111, the static switch 106, the current limiting resistor 107, the shunt 108, a lithium battery A104 and the cathode measurement port A112 are sequentially connected in series, the input side of the current transducer 109 is connected with the shunt 108, the output side of the current transducer is connected with the intelligent measurement and control storage unit A103, the input side of the voltage transducer A110 is connected with the anode measurement port A111 and the cathode measurement port A112, the output side of the voltage transducer is connected with the intelligent measurement and control storage unit A103, the anode measurement port A111 is connected with a tested steel rail 3 through a measurement cable A, and the cathode measurement port A112 is grounded through a measurement cable A. The lithium battery a104 supplies power to the main unit 1.
As shown in fig. 3, the slave machine 2 includes a GPS signal receiving antenna B201, a GPS signal time synchronization module B202, an intelligent measurement and control storage unit B203, a lithium battery B204, an LCD display B205, a measurement cable B, and a steel rail insulation test slave loop, the intelligent measurement and control storage unit B203 is connected to the GPS signal time synchronization module B202, the LCD display B205, and the steel rail insulation test slave loop respectively, the lithium battery B204 is connected to the intelligent measurement and control storage unit B203 and the GPS signal time synchronization module B202 respectively, and the GPS signal receiving antenna B201 is connected to the GPS signal time synchronization module B202. The steel rail insulation test secondary loop comprises a voltage transmitter B206, an anode measurement port B207 and a cathode measurement port B208, the input side of the voltage transmitter B206 is connected with the anode measurement port B207 and the cathode measurement port B208, the output side of the voltage transmitter B206 is connected with the intelligent measurement and control storage unit B203, and the anode measurement port B207 and the cathode measurement port B208 are respectively connected with a tested steel rail 3 through measurement cables B. The lithium battery B204 supplies power to the slave 2.
As shown in fig. 4, the intelligent measurement and control storage unit a103 includes a CPU1031, a power module 1032, an input module 1033, an output module 1034, a memory 1035, and an external interface 1036, where the CPU1031 is connected to the power module 1032, the input module 1033, the output module 1034, the memory 1035, and the external interface 1036, respectively, and the power module 1032 is connected to the output module 1034. The three groups of interfaces of the input module 1033 are respectively connected with the GPS signal time setting module a102, the current transducer 109 and the voltage transducer a 110; the power module 1032 is connected with the lithium battery A104; one of the external interfaces 1036 is connected to the LCD display a105, and the other is used for data export; one set of interfaces of the output module 1034 is connected to the static switch 106, and the other set of interfaces is reserved. The intelligent measurement and control storage unit B203 and the intelligent measurement and control storage unit A103 have the same structure. However, the input module 1033 of the intelligent measurement and control storage unit B203 is only connected to the GPS signal timing module B202 and the voltage transmitter B206, one group of interfaces of the input module 1033 is standby, two groups of interfaces of the output module 1034 are both standby, and the power supply module 1032 is connected to the lithium battery B204; one of the external interfaces 1036 is connected to the LCD display B205, and the other is used for data export.
As shown in fig. 1, a rail 3 to be tested is selected, the length of the rail is 1000m, and 10m of each extension is arranged at the two ends of the rail 3 to be tested for voltage measurement from a machine 2. The anode measurement port A111 of the host 1 is connected with the tested steel rail 3 through a measurement cable A, and the cathode measurement port A112 is connected with the ground through the measurement cable A; one slave machine 2 is connected with two ends of a10 m section of the extension of the left end of the tested steel rail 3 through a measuring cable B; the other slave machine 2 is connected with both ends of the 10 m-section extending from the right end of the tested steel rail 3 through a measuring cable B.
The GPS signal time setting module A102 of the host 1 sends out a GPS signal through the GPS signal receiving antenna A101, and the GPS signal time setting module B202 of the slave 2 receives the GPS signal through the GPS signal receiving antenna B201, so that the clock correction of the host 1 and the slave 2 through the GPS signal is realized, and the clock synchronization of the host 1 and the slave 2 is realized. The main machine 1 injects voltage U into the tested steel rail 3 0 And current I 0 The intelligent measurement and control storage unit A103 controls the on-off of the static switch 106 through a preset measurement time interval, such as 3s on and 5s off. Voltage U 0 Measured by a voltage transmitter A110, current I 0 The data measured by the current transducer 109 is stored in the intelligent measurement and control storage unit a103. The two slave machines 2 respectively measure the voltage difference between two ends of the 10m steel rail extending from the left end and the voltage difference between two ends of the 10m steel rail extending from the right end through the voltage transducer B206 thereof at preset measuring time intervals. For the sake of convenience of distinction, Δ U is used for measurement data of the left slave 2 when the static switch 106 is closed 1 The measured data of the slave 2 on the right side is shown by DeltaU 2 Δ U 'represents the measurement data of the left slave 2 when the static switch 106 is turned off' 1 Delta U 'for measurement data of the slave 2 on the right side' 2 And (4) showing. Delta U 'when the static switch 106 is theoretically open' 1 And delta U' 2 Is zero, but due to the objective presence of ambient stray currents, 'Delta U' 1 And delta U' 2 Often have a certain value and therefore need to be filtered out. Actual value of the measurement data of the left-hand slave 2 is Δ U 1 -△U’ 1 The actual value of the measured data of the slave 2 on the right is Δ U 2 -△U’ 2 . Because the length of the steel rail is 10 meters r10 When the current is known, the left rail flows out current I 1 =(△U 1 -△U’ 1 )/ R r10 (ii) a The current flowing out of the right rail is I 2 =(△U 2 -△U’ 2 )/ R r10 (ii) a Finally obtaining the insulation resistance R of the steel rail ru = U 0 /( I 0 - I 1 -I 2 )。
In order to ensure the accuracy of the measurement result, multiple sets of measurement data when the static switch 106 is closed and measurement data when the static switch 106 is opened can be obtained through measurement for a period of time.
The utility model discloses a GPS signal check-up time, ensure that host computer 1 and the clock from machine 2 strictly keep unanimous all the time, then host computer 1 is to selected length by test rail 3 (usually 1000 meters) injection test current, and measure injection voltage numerical value and current numerical value according to the time interval of setting for and store inside the device, and measure by the voltage difference numerical value of 3 epitaxial sections of test rail and store inside the device at every same moment from machine 2, derive whole actual measurement's data through external interface 1036 at last, calculate the insulation resistance by test rail 3.
The present invention has been described in detail with reference to the embodiments, but the embodiments are only exemplary embodiments of the present invention and should not be considered as limiting the scope of the present invention. The protection scope of the present invention is defined by the claims. Technical scheme, or technical staff in the field is in the utility model technical scheme's inspiration under the utility model discloses a substantial and protection scope, design similar technical scheme and reach above-mentioned technological effect, perhaps to the impartial change that application scope was made and improve etc. all should still belong to the utility model discloses a patent covers within the protection scope.
Claims (4)
1. The utility model provides a rail insulation integrated test record appearance based on GPS time setting which characterized in that: comprises a master machine and two slave machines, wherein the master machine is in wireless communication with the slave machines,
the main machine comprises a GPS signal receiving antenna A, a GPS signal time setting module A, an intelligent measurement and control storage unit A, a lithium battery A, an LCD display A, a measuring cable A and a steel rail insulation testing main loop, wherein the intelligent measurement and control storage unit A is respectively connected with the GPS signal time setting module A, the LCD display A and the steel rail insulation testing main loop, the lithium battery A is respectively connected with the intelligent measurement and control storage unit A, the GPS signal time setting module A and the steel rail insulation testing main loop, the GPS signal receiving antenna A is connected with the GPS signal time setting module A, the steel rail insulation testing main loop is connected with two measuring cables A,
the slave machine comprises a GPS signal receiving antenna B, a GPS signal time synchronization module B, an intelligent measurement and control storage unit B, a lithium battery B, an LCD display B, a measurement cable B and a steel rail insulation test slave loop, wherein the intelligent measurement and control storage unit B is respectively connected with the GPS signal time synchronization module B, the LCD display B and the steel rail insulation test slave loop, the lithium battery B is respectively connected with the intelligent measurement and control storage unit B and the GPS signal time synchronization module B, the GPS signal receiving antenna B is connected with the GPS signal time synchronization module B, the steel rail insulation test slave loop is connected with the measurement cable B.
2. The integrated test recorder of rail insulation based on GPS time pairing of claim 1, wherein: the rail insulation test major loop includes that static switch, current-limiting resistor, shunt, current transmitter, voltage transmitter A, anodal measurement port A and negative pole measure port A, anodal measurement port A, static switch, current-limiting resistor, shunt, lithium cell A and negative pole measure port A and establish ties in proper order, current transmitter's input side with the shunt is connected, its output side with the intelligent measurement and control memory cell A is connected, voltage transmitter A's input side with anodal measurement port A, negative pole measure port A and connect, its output side with the intelligent measurement and control memory cell A is connected, anodal measurement port A connects by the test rail through measuring cable A, the negative pole is measured port A and is passed through measuring cable A ground connection.
3. The integrated test recorder of rail insulation based on GPS time pairing of claim 1, wherein: the steel rail insulation test slave loop comprises a voltage transmitter B, a positive electrode measurement port B and a negative electrode measurement port B, wherein the input side of the voltage transmitter B is connected with the positive electrode measurement port B and the negative electrode measurement port B, the output side of the voltage transmitter B is connected with the intelligent measurement and control storage unit B, and the positive electrode measurement port B and the negative electrode measurement port B are respectively connected with a tested steel rail through measurement cables B.
4. The integrated test recorder of rail insulation based on GPS time pairing of claim 1, wherein: the intelligent measurement and control storage unit A and the intelligent measurement and control storage unit B are identical in structure and respectively comprise a CPU, a power module, an input module, an output module, a storage and an external interface, the CPU is respectively connected with the power module, the input module, the output module, the storage and the external interface, and the power module is connected with the output module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222651489.1U CN217931811U (en) | 2022-10-10 | 2022-10-10 | Rail insulation integrated test recorder based on GPS time synchronization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222651489.1U CN217931811U (en) | 2022-10-10 | 2022-10-10 | Rail insulation integrated test recorder based on GPS time synchronization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217931811U true CN217931811U (en) | 2022-11-29 |
Family
ID=84174306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222651489.1U Active CN217931811U (en) | 2022-10-10 | 2022-10-10 | Rail insulation integrated test recorder based on GPS time synchronization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217931811U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116068277A (en) * | 2023-03-06 | 2023-05-05 | 北京全路通信信号研究设计院集团有限公司 | Insulation resistance testing device and method for mechanical insulation joint in station |
-
2022
- 2022-10-10 CN CN202222651489.1U patent/CN217931811U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116068277A (en) * | 2023-03-06 | 2023-05-05 | 北京全路通信信号研究设计院集团有限公司 | Insulation resistance testing device and method for mechanical insulation joint in station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106840258A (en) | The full state electromagnetic environment monitoring system of wide area and method based on multi-parameter synergic monitoring | |
| CN109541300A (en) | A kind of the Analysis of energy metering instrument and its application method of count by time sharing | |
| CN217931811U (en) | Rail insulation integrated test recorder based on GPS time synchronization | |
| CN207114693U (en) | A kind of hybrid ranging system for monitoring transmission line malfunction | |
| CN105004918A (en) | Acquisition device for operation energy consumption data of urban rail transit train | |
| CN208399604U (en) | A kind of power quality compares standard measuring equipment online | |
| CN106680706A (en) | Electric life prediction and health state online monitoring device of converter breaker | |
| CN102981473B (en) | On-road impact vibration wireless real-time monitoring system of large electric power item | |
| CN202057728U (en) | Wide-range high-precision quick test device for direct-current resistance | |
| CN206863116U (en) | Direct current multifunctional electric energy meter | |
| CN205920203U (en) | Lithium cell detection device that ages | |
| WO2012083720A1 (en) | Real-time online monitoring devices for electromagnetic environment | |
| CN106124909A (en) | A kind of electric energy detection metering system | |
| CN202903233U (en) | Low-temperature type buried oil and gas pipeline parameter automatic monitoring system | |
| CN103439554B (en) | A kind of data readback and storage device and system thereof | |
| CN103676840A (en) | Multi-energy supply cleaning vehicle circuit control system | |
| CN201434887Y (en) | On-line monitoring unit for secondary loop voltage drop | |
| CN106952460A (en) | Intelligent electric meter long-distance meter-reading system | |
| CN204374358U (en) | Distribution line intelligent trouble Precise Position System | |
| CN2779412Y (en) | Multi-channel measurement device for AC/DC interference in pipeline | |
| CN201909813U (en) | Intelligent multifunctional high-voltage megohmmeter | |
| CN101592683A (en) | Three-phase electronic multi-rate electric energy meter | |
| CN107884653B (en) | Electricity inspection equipment for extensible module | |
| CN206074795U (en) | The online checking system of electric power meter networking | |
| CN201974485U (en) | Power frequency electromagnetic data real-time online monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |