CN201555658U - Railway contact net vibration performance test device - Google Patents
Railway contact net vibration performance test device Download PDFInfo
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- CN201555658U CN201555658U CN2009202780892U CN200920278089U CN201555658U CN 201555658 U CN201555658 U CN 201555658U CN 2009202780892 U CN2009202780892 U CN 2009202780892U CN 200920278089 U CN200920278089 U CN 200920278089U CN 201555658 U CN201555658 U CN 201555658U
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- railway contact
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Abstract
The utility model provides a railway contact net vibration performance test device which includes a sensor module, a data acquisition module, a wireless data transmission module and a power supply module, wherein the sensor module is arranged on a contact line of the railway contact net and used for measuring the vibration performance parameter of the railway contact net when a locomotive passes through; the data acquisition module is used for communicating with the sensor module, acquiring the vibration performance parameter of the railway contact net when the locomotive passes through, and performing analog-to-digital conversion to the vibration performance parameter of the railway contact net when the locomotive passes through; the wireless data transmission module is used for communicating with the data acquisition module, and sending out the vibration performance parameter of the railway contact net when the locomotive passes through after the analog-to-digital conversion; and the power supply module is used for supplying power to the sensor module, the data acquisition module, and the wireless data transmission module. The utility model realizes the railway contact net vibration performance test, and provides the technical equipment for ensuring the safety of railway transportation.
Description
Technical field
The utility model relates to railway territory, relates in particular to a kind of railway contact line vibration performance proving installation.
Background technology
Along with the needs of China Express Railway, Line for Passenger Transportation construction and operation, improve the operational reliability of contact net, the safety of guarantee tractive power supply system, become an important ring of doing safety of railway traffic well.For estimating the runnability of high speed contact net, what guarantee that contact net has good safe condition and a bow net well is subjected to the fluidity energy, railway administration department requires the vibration performance of contact net when bullet train moves detected in real time, dynamic property and safety in operation to contact net are assessed, and whether the operation characteristic of estimating the high speed contact net satisfies the service requirement of bullet train.
Because train high-speed cruising, pantograph and osculatory are in the high-speed slide Frotteurism, the upper lifting force of pantograph plays incentive action to the vertical vibration of osculatory, cause the vertical vibration of osculatory, raising along with train speed, pantograph upthrust be subjected to aerodynamic influence increasing, thereby cause the vibration of osculatory more and more violent.The violent vibration of osculatory causes the pantograph-catenary current collection state deteriorating, particularly influenced seriously by stream to the motor train unit bouble-bow, simultaneously, if the Oscillation Amplitude of osculatory is excessive, causes accident between pantograph easily, influences railway operation safety.
For accurately estimating the runnability of contact net, the newly-built high-speed railway of China, Line for Passenger Transportation are in the combined test stage, all need maximum lifting amount (peak swing), the vibration frequency of osculatory, vibration damping coefficient, the osculatory wave propagation coefficient of osculatory are tested, estimating the performance of high speed contact net, for the examination of high-speed railway, open and operation provides technical basis.
The equipment of test railway contact line vibration performance also is a blank at present.
The utility model content
The utility model embodiment provides a kind of railway contact line vibration performance proving installation, measures to realize the railway contact line runnability.
On the one hand, the utility model embodiment provides a kind of railway contact line vibration performance proving installation, said apparatus comprises: sensor assembly, be arranged on the osculatory of above-mentioned railway contact line, be used to measure above-mentioned railway contact line locomotive by the time the vibration performance parameter; Data acquisition module is used for and the sensor module communication, obtain above-mentioned railway contact line locomotive by the time the vibration performance parameter, and to above-mentioned railway contact line locomotive by the time the vibration performance parameter carry out analog to digital conversion; Wireless data transmission module is used for and above-mentioned data acquisition module communication, with above-mentioned by the railway contact line locomotive after the analog to digital conversion by the time the vibration performance parameter send by wireless mode; Power module is used for the sensor module, above-mentioned data acquisition module and the power supply of above-mentioned wireless data transmission module.
Technique scheme has following beneficial effect: because adopt the railway contact line vibration performance proving installation of sensor measurement, wireless transmission, measure so realized the railway contact line runnability, for guaranteeing the technical equipment of safety of railway traffic.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of railway contact line vibration performance of the utility model embodiment proving installation structural representation;
Fig. 2 is a kind of railway contact line vibration performance of the utility model application example proving installation structural representation;
Fig. 3 is a kind of railway contact line vibration performance of the utility model application example proving installation software flow design drawing.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one:
As shown in Figure 1, be a kind of railway contact line vibration performance of the utility model embodiment proving installation structural representation, said apparatus comprises:
Wireless data transmission module 103 is used for and above-mentioned data acquisition module communication, with above-mentioned by the railway contact line locomotive after the analog to digital conversion by the time the vibration performance parameter send by wireless mode;
Optionally, said apparatus can also comprise: Data Receiving and processing module 105, be used for and above-mentioned wireless data transmission module 103 communications, receive above-mentioned wireless data transmission module 103 by wireless mode send above-mentioned by the railway contact line locomotive after the analog to digital conversion by the time the vibration performance parameter, and handle.Optionally, above-mentioned Data Receiving and processing module 105 can be for portable or fixed.Optionally, above-mentioned wireless mode can comprise GPRS public network mode.Optionally, the sensor module 101 can be arranged on the section of osculatory of above-mentioned railway contact line, be used for the above-mentioned railway contact line locomotive of real-time synchro measure by the time the vibration performance parameter.Above-mentioned section can comprise one or more of the following section of osculatory of above-mentioned railway contact line: span centre, anchor point, overlap or line trouble.Above-mentioned data acquisition module 102, above-mentioned wireless data transmission module 103, above-mentioned power module 104 can be arranged on the bracket of above-mentioned railway contact line.Above-mentioned power module 104 can comprise solar panels and the battery on the bracket that is arranged at above-mentioned railway contact line.The sensor module 101 can comprise following one or more: acceleration transducer, displacement transducer, strain transducer.Above-mentioned data acquisition module 102 can comprise AD μ C812 single-chip microcomputer.
Above-mentioned utility model embodiment technical scheme is measured so realized the railway contact line runnability because adopt the railway contact line vibration performance proving installation of sensor measurement, wireless transmission, for guaranteeing the technical equipment of safety of railway traffic.
Embodiment two:
The utility model technical issues that need to address are: the testing apparatus of high speed contact net vibration performance is provided, makes it have up and down at 350km/h that strong, the many measurement point of test performance distributes, test data can be carried out real-time radio transmission and characteristics with low cost in the applied to high-speed railway touching net test.
Technical solution of the present utility model is: the real-time measuring equipment of high speed contact net vibration performance multiple spot, and be characterized in: it comprises the sensor assembly of being made up of displacement, strain, acceleration; Data acquisition module; Wireless data transmission module and power module, Data Receiving and processing module are formed.
Described sensor assembly places on the osculatory, described data acquisition module, wireless data transmission module and power module place on the contact net bracket, above-mentioned several sections all is on the high voltage platform of 25kV, described Data Receiving and processing module are portable mode, can on-the-spot portable use, also can place office and testing laboratory to use.
The utility model compared with prior art has following advantage: 1, this testing apparatus contact net vibration parameters such as vibration displacement, acceleration, strain etc. under can the various operating conditions of continuous coverage bullet train.2, each unit performance of contact net vibration performance proving installation is independent, is convenient to safeguard and upgrading to have good Electro Magnetic Compatibility and stability.3, proving installation can carry out multiple spot layout (for example 16 sections) on contact net, measures simultaneously, and different section is carried out the while Measurement and analysis.4, test data reaches ground receiving system by wireless network or GPRS public network, has avoided the use of the high-low pressure spacer assembly in the traditional measurement.5, adopt solar cell, device can long-term continuous coverage.6, can descend operate as normal in the condition of round-the-clock (daytime, night, wind, rain, snow, mist).
Safety of railway traffic can be tested, identify and estimate, be guaranteed to the utility model high speed contact net vibration performance proving installation to applied to high-speed railway touching net.
As shown in Figure 2, be a kind of railway contact line vibration performance of the utility model application example proving installation structural representation, this applied to high-speed railway touching net vibration performance measurement mechanism mainly is made up of sensor, data acquisition module, wireless data transmission module, power modules such as displacement, acceleration, strains, can also select to comprise Data Receiving and processing module in addition.It mainly measures the vibration parameters of osculatory: the lifting amount of the vibration acceleration of osculatory, the bending strain of osculatory and osculatory.Introduce each ingredient and function below in detail:
(1) design of survey sensor and selecting for use
Acceleration transducer: capacitance acceleration transducer, the advantage of this sensor is: 1) overload capacity is strong, and the maximum overload capacity is 3000g; 2) output signal grade height; 3) antijamming capability is strong; 4) be easy to install.
Displacement transducer: the stay-supported displacement transducer is adopted in the measurement to osculatory lifting amount, and this kind sensor carries restoring device, the response frequency height.
Strain transducer: adopt the method for pasting foil gauge at the osculatory end face, resistance strain gage is formed strain transducer.The characteristics of this sensor are a lateral bending curved strain; Stretching and compressive strain have been eliminated; Has temperature compensation function.
Synchronism detection high speed contact net reaches the osculatory vibration parameters of 16 sections in real time.
(2) data acquisition module
Data acquisition module is made up of signal conditioning circuit and data acquisition process part (comprising AD μ C812 single-chip microcomputer and data buffer), and the core of data acquisition process part is wherein finished by AD μ C812 single-chip microcomputer.It consists of: self-alignment 12 of one 85 μ s switching time of passage and precision are approached A/D converter, two 12 D/A converter, flash/electricity of 8KB one by one and are wiped the kernel of program storage, 640 byte flash/electric obliterated data storer, 80C52 single-chip microcomputer.Other some critical function modules comprise: DMA (the Direct Memory Access between WatchDog Timer and power supply monitor, A/D converter and the data-carrier store; the direct memory visit) circuit, memory protection circuit, SPI (Serial Peripheral interface; Serial Peripheral Interface) and I2C (Inter-IntegratedCircuit, twin wire universal serial bus) bus interface.One of AD μ C812 advantage is integrated complete programmable a, self calibration, high-precision Analog Data Acquisition System.Another advantage of AD μ C812 is that it has adopted flash/electrically-erasable memory, is aided with the loader and the debugging software that include, makes Design of device, programming, debugging easy.In addition, its quiet CPU operation and free time and power-down mode all are vital performance for battery powered measuring and controlling equipment.
(3) wireless data transmission module:
1) little emissive power: the emissive power of maximum (1W).
2) (Industrial Scientific Medical, this frequency range (2.4～2.4835GHz) mainly is the open industry of giving, and use in science, three fields of medical science) frequency range frequency of operation need not to apply for frequency to ISM.Carrier frequency frequency 429-438MHz.
3) high anti-jamming capacity and low error rate.Based on the modulation system of FSK (Frequency-shift keying, frequency shift keying), adopt the efficient communication agreement, error rate BER (Bit Error Rate, the bit error rate) is 10
-5～10
-6
4) long transmission distance.Under the sighting distance situation, antenna height＞3 meter, reliable transmission separation＞3000m.
5) communication baud rate of 9600bps.
6) low-power consumption and sleep mode.Received current＜20mA, transmitter current＜650mA, electric current only is＜20uA (baud rate=1200bps) during dormancy.
(4) power module
Adopt battery+solar buoy charging modes, solar panels and battery are installed on the contact net bracket, solar panels charge the battery, and have guaranteed the electric power supply of measurement mechanism, have avoided the traditional measurement device by the problem of low-pressure side to the power supply of 25kV side simultaneously.
(5) device principle of work
Displacement, acceleration and strain transducer are installed in contact net anchor point and span centre, data acquisition module, wireless data transmission module and power module are installed in contact net bracket place, data acquisition module is gathered from sensor signal with the 10K sampling rate, when locomotive by the time data acquisition module with locomotive by the time before and after each a period of time sampled data automatically (need not human intervention) dump to the data buffer, and send to ground by wireless data transmission module, the data buffer can preserve No. 7 locomotives by the time sampled data, can obtain sampled data in the data buffer at any time by wireless data transmission module.
(6) measurement mechanism hardware design main points
The hardware configuration of whole device is simple: the simple hardware construction design makes the functional reliability of whole device and antijamming capability all greatly improve.
EMC Design: electromagnetic compatibility problem is quite outstanding at electrified railway traction power supply system, as the device of on the contact net of 25kV, implementing to measure, it very easily is subjected to extraneous electromagnetic interference (EMI), and the electromagnetic compatibility problem of device is directly connected to the accuracy of the reliability of measurement mechanism, stability and measurement result.The major measure that this device EMC Design is taked is: the selection of earthing mode; The employing of low-pass filter and digital filtering; The inhibition that width of cloth blackberry lily is disturbed; Device in the entry design of signal conditioning circuit the peak value amplitude limiter circuit; The inhibition that power supply disturbs.
Data Receiving and processing module can be on-the-spot portable, also can place office or testing laboratory, receive on-the-spot test data in real time by the GPRS public network.
Described measurement mechanism can multibreak synchronous real-time measurement, and test data can real-time Transmission, also can download by wireless system afterwards.Test data both can be passed through the wireless system on-site transfer, can pass through GPRS public network remote transmission and control again, was fit to the measurement and the control of many circuits of railway and a plurality of measuring points.
(7) software design of measurement mechanism
The software of controller is write by Keil uVision3 compiler and is formed, software flow as shown in Figure 3, be a kind of railway contact line vibration performance of the utility model application example proving installation software flow design drawing: after device powers on, at first carry out initialization, register and I/O port are provided with, carry out self-check program then, from detecting the open external interrupt in errorless back, because device software adopts interrupt mode, reduced rate request, can make the measurement sequential of signal accurately reliable again device.Judge it is that sampling is interrupted or communication disruption then: if sampling is interrupted, then the vibration performance supplemental characteristic of the described railway contact line that will measure advances buffer memory, judge whether then be described railway contact line locomotive by the time the vibration performance supplemental characteristic, if, then, interrupt at last returning with this data storage; If communication disruption is then handled sending by the trip of communication disruption handling procedure, interrupt at last returning.AD μ C812 has the characteristics at system programmable, do not need special-purpose programmable device write-in program, as long as ADM202 links to each other it with the serial port of computing machine with the serial port level transferring chip, operation just downloads and can wipe program storage to flash/electricity that program writes AD μ C812, so can carry out online program debug.Simultaneously also can be with its resource in support, be used for realizing between the multimachine communication or and upper machine communication mutually.
(8) apparatus features
Simple in structure, adopt highly integrated chip to simplify circuit, dwindled the volume of device, be convenient to installation and processing.Easy to operate, device is finished collection, the storage of data fully automatically and is sent under unmanned condition of intervening.Motion is reliable, and anti-jamming capacity is strong, can not produce misoperation, and self-protection function is arranged when the fluctuation of contact net interference voltage is big.Applied widely, need not change the structure of hardware and software, as long as be provided with according to actual needs and externally do simple change on the mode of connection and can realize functions such as data acquisition, transmission.High speed contact net vibration performance measurement mechanism can be advantageously used in the data acquisition and the transmission of contact net high-pressure side, to obtaining the operation data of contact net, improve the vital role that has of pantograph-catenary current collection quality, minimizing accident between pantograph, the excellent popularization using value is arranged.This measurement mechanism also may be used on the long-term measurement of railway key facility, as the approaching facilities and equipment of personnel such as contact net in bridge, tunnel inconvenience.The utlity model has the integration test performance strong, can measure in real time and characteristics with low cost.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct related hardware to finish by program, described program can be stored in the computer read/write memory medium, this program is when carrying out, comprise above-mentioned all or part of step, described storage medium, as: ROM/RAM, disk, CD etc.
Above-described embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is an embodiment of the present utility model; and be not used in and limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. railway contact line vibration performance proving installation is characterized in that described device comprises:
Sensor assembly is arranged on the osculatory of described railway contact line, be used to measure described railway contact line locomotive by the time the vibration performance parameter;
Data acquisition module is used for and described sensor assembly communication, obtain described railway contact line locomotive by the time the vibration performance parameter, and to described railway contact line locomotive by the time the vibration performance parameter carry out analog to digital conversion;
Wireless data transmission module is used for and described data acquisition module communication, with described by the railway contact line locomotive after the analog to digital conversion by the time the vibration performance parameter send by wireless mode;
Power module is used for described sensor assembly, described data acquisition module and the power supply of described wireless data transmission module.
2. railway contact line vibration performance proving installation according to claim 1 is characterized in that described device also comprises:
Data Receiving and processing module are used for and described wireless data transmission module communication, receive described wireless data transmission module by wireless mode send described by the railway contact line locomotive after the analog to digital conversion by the time the vibration performance parameter, and handle.
3. as railway contact line vibration performance proving installation as described in the claim 2, it is characterized in that,
Described Data Receiving and processing module are portable or fixed.
4. as railway contact line vibration performance proving installation as described in claim 2 or 3, it is characterized in that,
Described wireless mode comprises GPRS public network mode.
5. railway contact line vibration performance proving installation according to claim 1, it is characterized in that, described sensor assembly is arranged on the section of osculatory of described railway contact line, be used for the described railway contact line locomotive of real-time synchro measure by the time the vibration performance parameter.
6. as railway contact line vibration performance proving installation as described in the claim 5, it is characterized in that,
Described section comprises one or more of the following section of osculatory of described railway contact line: span centre, anchor point, overlap or line trouble.
7. railway contact line vibration performance proving installation according to claim 1 is characterized in that described data acquisition module, described wireless data transmission module, described power module are arranged on the bracket of described railway contact line.
8. railway contact line vibration performance proving installation according to claim 1 is characterized in that described power module comprises solar panels and the battery on the bracket that is arranged at described railway contact line.
9. railway contact line vibration performance proving installation according to claim 1 is characterized in that, described sensor assembly comprise following one or more: acceleration transducer, displacement transducer, strain transducer.
10. railway contact line vibration performance proving installation according to claim 1 is characterized in that described data acquisition module comprises AD μ C812 single-chip microcomputer.
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| CN2009202780892U CN201555658U (en) | 2009-12-15 | 2009-12-15 | Railway contact net vibration performance test device |
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| CN2009202780892U CN201555658U (en) | 2009-12-15 | 2009-12-15 | Railway contact net vibration performance test device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710756A (en) * | 2012-05-18 | 2012-10-03 | 中国铁道科学研究院基础设施检测研究所 | Detection data real-time synchronization method and processing method of overhead line system |
| CN106500825A (en) * | 2016-10-19 | 2017-03-15 | 国网河南省电力公司电力科学研究院 | A kind of electric power pylon vibration displacement real-time monitoring system |
| CN106525219A (en) * | 2016-10-19 | 2017-03-22 | 国网河南省电力公司电力科学研究院 | Tower material vibration displacement real time monitoring method for power transmission iron tower |
| CN108917585A (en) * | 2018-09-11 | 2018-11-30 | 中铁高铁电气装备股份有限公司 | A kind of contact network key components monitoring system and detection method |
| CN109612711A (en) * | 2018-12-29 | 2019-04-12 | 北京天高科科技有限公司 | Electrification railway contact net bracket loosened screw monitors system |
| CN110207810A (en) * | 2018-02-28 | 2019-09-06 | 常州路航轨道交通科技有限公司 | Axle box vibration detecting system |
| CN110617878A (en) * | 2019-10-31 | 2019-12-27 | 南京林业大学 | Railway contact net vibration frequency detection device |
| CN111311591A (en) * | 2020-03-07 | 2020-06-19 | 西南交通大学 | Method for detecting lifting amount of high-speed railway contact net |
| CN113701877A (en) * | 2021-08-27 | 2021-11-26 | 中铁建电气化局集团第三工程有限公司 | Vibration monitoring method for overhead line system |
| CN113919403A (en) * | 2021-12-15 | 2022-01-11 | 中铁建电气化局集团第三工程有限公司 | Method and device for detecting abnormity of contact line in contact network |
| CN114323240A (en) * | 2021-12-03 | 2022-04-12 | 中铁第一勘察设计院集团有限公司 | Device and method for monitoring running state of contact net positioner |
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2009
- 2009-12-15 CN CN2009202780892U patent/CN201555658U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710756A (en) * | 2012-05-18 | 2012-10-03 | 中国铁道科学研究院基础设施检测研究所 | Detection data real-time synchronization method and processing method of overhead line system |
| CN102710756B (en) * | 2012-05-18 | 2015-06-10 | 中国铁道科学研究院基础设施检测研究所 | Detection data real-time synchronization method and processing method of overhead line system |
| CN106500825A (en) * | 2016-10-19 | 2017-03-15 | 国网河南省电力公司电力科学研究院 | A kind of electric power pylon vibration displacement real-time monitoring system |
| CN106525219A (en) * | 2016-10-19 | 2017-03-22 | 国网河南省电力公司电力科学研究院 | Tower material vibration displacement real time monitoring method for power transmission iron tower |
| CN110207810A (en) * | 2018-02-28 | 2019-09-06 | 常州路航轨道交通科技有限公司 | Axle box vibration detecting system |
| CN110207810B (en) * | 2018-02-28 | 2021-11-30 | 常州路航轨道交通科技有限公司 | Axle box vibration detection system |
| CN108917585A (en) * | 2018-09-11 | 2018-11-30 | 中铁高铁电气装备股份有限公司 | A kind of contact network key components monitoring system and detection method |
| CN109612711A (en) * | 2018-12-29 | 2019-04-12 | 北京天高科科技有限公司 | Electrification railway contact net bracket loosened screw monitors system |
| CN110617878A (en) * | 2019-10-31 | 2019-12-27 | 南京林业大学 | Railway contact net vibration frequency detection device |
| CN110617878B (en) * | 2019-10-31 | 2024-04-19 | 南京林业大学 | Railway contact net vibration frequency detection device |
| CN111311591A (en) * | 2020-03-07 | 2020-06-19 | 西南交通大学 | Method for detecting lifting amount of high-speed railway contact net |
| CN113701877A (en) * | 2021-08-27 | 2021-11-26 | 中铁建电气化局集团第三工程有限公司 | Vibration monitoring method for overhead line system |
| CN114323240A (en) * | 2021-12-03 | 2022-04-12 | 中铁第一勘察设计院集团有限公司 | Device and method for monitoring running state of contact net positioner |
| CN113919403A (en) * | 2021-12-15 | 2022-01-11 | 中铁建电气化局集团第三工程有限公司 | Method and device for detecting abnormity of contact line in contact network |
| CN113919403B (en) * | 2021-12-15 | 2022-02-25 | 中铁建电气化局集团第三工程有限公司 | Method and device for detecting abnormity of contact line in contact network |
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Owner name: LOCOMOTIVE + CAR RESEARCH INSTITUTE, CHINA ACADEMY Effective date: 20120716 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120716 Address after: 100081 Beijing city Haidian District Daliushu Road No. 2 Co-patentee after: Locomotive & Car Research Institute, China Academy of Railway Sciences Patentee after: China Academy of Railway Sciences Address before: 100081 Beijing city Haidian District Daliushu Road No. 2 Patentee before: Locomotive & Car Research Institute, China Academy of Railway Sciences |
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| CX01 | Expiry of patent term |
Granted publication date: 20100818 |
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