CN206832944U - A kind of bow net arcing detection means - Google Patents
A kind of bow net arcing detection means Download PDFInfo
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- CN206832944U CN206832944U CN201720784183.XU CN201720784183U CN206832944U CN 206832944 U CN206832944 U CN 206832944U CN 201720784183 U CN201720784183 U CN 201720784183U CN 206832944 U CN206832944 U CN 206832944U
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- bow net
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Abstract
The utility model discloses a kind of bow net arcing detection means, including optical system and sensor-based system；Optical system, which includes shell, filter lens and optical fiber, sensor-based system, includes photoelectric sensor and drive amplification circuit；The output end of drive amplification circuit sets current sensor and signal processing module；The output end output digit signals of signal processing module, and it is configured with memory.The utility model intercepts the ultraviolet filtered out in natural light by the filter lens of optical system, arclight can be produced when allowing bow net and contact net to occur offline and corresponding ultraviolet leads to filtering lens, optical system is electric arc photoimaging and amplifies in the end of optical system, make ultraviolet light coupled into optical fibres, the signal accuracy that finally passes on photoelectric sensor can be made higher；It can solve the problem that solar irradiation detects the problem of disturbing to bow net arcing.
Description
Technical field
It the utility model is related to locomotive pantograph net detection technique field, and in particular to a kind of bow net arcing detection means.
Background technology
With the continuous speed-raising and development of China's electric railway, the pantograph contact line relation under fast state（Pantograph and contact
Dynamic relationship of the net under high-speed motion）To ensureing that electric railway safe operation is more and more important.And bow net arcing is bow
One of most important index of gateway system, therefore there is very important actual meaning to bow net arcing timing, quantitative real-time detection
Justice.
Traditional bow net arcing detection is mainly detected by Ultraviolet sensor, infrared thermography detects or ultraviolet imagery
Instrument detects.Detected using Ultraviolet sensor, usually due to being disturbed by the ultraviolet light in sunshine, wrong report, rate of failing to report are very big.
Detected using infrared thermography, it is usually because small by then passing through detection temperature change come indirect detection bow net arcing
Temperature change unobvious caused by bow net arcing and missing inspection；When ultraviolet imager detects, to bow under static or lower-speed state
The timing of net arcing, the effect that quantitatively detects are more satisfactory, when ultraviolet imager is on the train installed in high-speed cruising, due to by
To the influence of the factors such as train vibration, the obvious and long-term vibration at high speed of accuracy of detection decline greatly reduces ultraviolet
The service life of imager.At the same time, with current manufacturing technology, the manufacturing cost of ultraviolet imager is very high, in industry
Field is also unsuitable to promote the use of on a large scale.
Utility model content
The purpose of this utility model is to provide a kind of bow net arcing detection means.
For the above-mentioned purpose, a kind of bow net arcing detection means is provided in one embodiment of the present utility model, including
Optical system and sensor-based system；
Optical system includes shell, and the front end of shell is provided with the filter lens of interception natural light ultra-violet bands；Shell
Rear end is provided with optical fiber, and the ultraviolet light of filtered lens can be coupled into optical fiber；The lower end of shell is provided with base,
Base is used for fixed optical system；
Sensor-based system includes being connected to detect the photoelectric sensor of ultraviolet light and by photo-sensor signal with optical fiber
Amplify the drive amplification circuit of simultaneously output pulse signal；The output end of drive amplification circuit is provided with the electric current of detection current strength
Sensor and the signal processing module that pulse signal is converted to data signal；The output end output numeral of signal processing module
Signal, and it is configured with memory.
Preferably, it is convex lens to filter lens, and the ultra-violet bands of the natural light of filter lens interception are 280 ± 5nm.
Preferably, enclosure is vacuum, and the upper end of shell is provided with traversing head.
Preferably, enclosure and the ultraviolet coupling at the focal length of filter lens with saturating filtering lens are stretched into one end of optical fiber
Close, the other end of optical fiber runs through the tail end of shell.
Preferably, photoelectric sensor is ultraviolet electric transducer, and ultraviolet electric transducer includes photomultiplier, light
Electric multiplier tube is connected with optical fiber.
Preferably, signal processing module includes shaping circuit, filter circuit and analog to digital conversion circuit.
In summary, the utility model has advantages below：
The utility model intercepts the ultraviolet filtered out in natural light by the filter lens of optical system, allows bow net and contact
Net can produce arclight when occurring offline and corresponding ultraviolet leads to filtering lens, and optical system is electric arc photoimaging and amplifies
In the end of optical system, make ultraviolet light coupled into optical fibres, the signal accuracy that finally passes on photoelectric sensor can be made higher；
It can solve the problem that solar irradiation detects the problem of disturbing to bow net arcing.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model one embodiment；
Fig. 2 is the schematic diagram of optical system in the utility model one embodiment.
Wherein, 1, shell；2nd, lens are filtered；3rd, optical fiber；4th, base；5th, traversing head.
Embodiment
The utility model provides a kind of bow net arcing detection means, including optical system and sensor-based system.Optical system
Effect be to intercept and filter out the ultraviolet frequency range of natural light so that the ultraviolet light into optical fiber and sensor-based system is that bow net is sent
Electric arc in the ultraviolet light that carries, the ultraviolet optical frequencies of bow net differs with the ultraviolet frequency range in natural light, so can be just
In the ultraviolet for filtering out natural light, the influence of natural light middle-ultraviolet lamp wave band can be so reduced.
Optical system includes shell 1, and shell can be in cylindrical, and enclosure is vacuum, can allow the biography of light
Broadcast better reliability.The upper end of shell is provided with traversing head 5, can be easy to be directed at bow net when installing optical system.
The front end of shell is provided with the filter lens 2 of interception natural light ultra-violet bands；It is preferred that filter lens are convex lens, filter is saturating
The ultra-violet bands of the natural light of mirror interception are 280 ± 5nm；Convex lens are advantageous to the focusing of light, by setting suitable position
Putting can be easy in light coupling optical fiber 3.
The rear end of shell is provided with optical fiber 3, and the ultraviolet light of filtered lens can be coupled into optical fiber, here can
The ultraviolet light enough passed through refers to the ultraviolet optical frequencies that bow net is sent；One end of optical fiber stretches into enclosure and in the focal length of filter lens
Place and the ultraviolet coupling of saturating filtering lens, the other end of optical fiber run through the tail end of shell.The lower end of shell is provided with base 4,
Base is used for fixed optical system；Such as optical system is fixed at the top of locomotive by base.
Sensor-based system includes being connected to detect the photoelectric sensor of ultraviolet light and by photo-sensor signal with optical fiber
Amplify the drive amplification circuit of simultaneously output pulse signal.The output end of drive amplification circuit is provided with the electric current of detection current strength
Sensor and the signal processing module that pulse signal is converted to data signal；The output end output numeral of signal processing module
Signal, and it is configured with memory.
In optimal enforcement example of the present utility model, photoelectric sensor is ultraviolet electric transducer, and ultraviolet photoelectric senses
Device includes photomultiplier, and photomultiplier is connected with optical fiber.Signal processing module includes shaping circuit, filter circuit and mould
Number change-over circuit, pulse signal are converted into modulus signal after shaping, filtering, and carry out the inspection of electric current in this process
Survey, analyze current strength and arc characteristic.
The operation principle of bow net arcing detection means of the present utility model is：Processing and photoelectric sensing by optical system
The reception of device, in the embedded processing analysis system processes with exterior arrangement, so as to detect the arcing between bow net.
Specific method is：Using non-contact detection method, applied optics system and ultraviolet light photo sensor, light is utilized
The blind principle of light of spectrum is caught to bow net electric arc, then carries out respective handling simultaneously to the information of collection using embedded system
Arc characteristic is analyzed, point occurs so as to position electric arc.Detection means is cut by ultraviolet light needed for the convergence of specific optical system
The ultraviolet light of 280 ± 5nm wave bands is taken, on the photomultiplier ultra-violet light transmission caused by electric arc to photoelectric sensor；It is ultraviolet
Light converts optical signals to pulsed current signal by photoelectric sensor and drive amplification circuit.
The utility model can be based on TI6000 series DSP modules, build data acquisition unit and signal processing unit,
Shaping and filtering are carried out to obtained pulsed current signal, current strength and size are analyzed, so as to analyze arc characteristic.Profit simultaneously
The basic data of test point train operation is obtained with TAX casees or GPRS, positioning arcing occurs point, provides every kilometer of arcing rate.
Finally, stored record correlation arc data.
Although being described in detail with reference to accompanying drawing to specific embodiment of the present utility model, should not be construed as pair
The restriction of the protection domain of this patent.In the scope described by claims, those skilled in the art are without creative labor
The dynamic various modification and variation that can be made still belong to the protection domain of this patent.
Claims (6)
- A kind of 1. bow net arcing detection means, it is characterised in that：IncludingOptical system and sensor-based system；The optical system includes shell, and the front end of shell is provided with the filter lens of interception natural light ultra-violet bands；Shell Rear end is provided with optical fiber, and the ultraviolet light of filtered lens can be coupled into optical fiber；The lower end of the shell is provided with Base, the base are used for fixed optical system；The sensor-based system includes being connected to detect the photoelectric sensor of ultraviolet light and by photo-sensor signal with optical fiber Amplify the drive amplification circuit of simultaneously output pulse signal；The output end of the drive amplification circuit is provided with detection current strength Current sensor and the signal processing module that pulse signal is converted to data signal；The output end of the signal processing module Output digit signals, and it is configured with memory.
- 2. bow net arcing detection means as claimed in claim 1, it is characterised in that：The filter lens are convex lens, the filter The ultra-violet bands of the natural light of lens interception are 280 ± 5nm.
- 3. bow net arcing detection means as claimed in claim 1, it is characterised in that：The enclosure is vacuum, described The upper end of shell is provided with traversing head.
- 4. bow net arcing detection means as claimed in claim 1, it is characterised in that：Enclosure is stretched into one end of the optical fiber And the ultraviolet coupling at the focal length of filter lens with saturating filtering lens, the other end of optical fiber run through the tail end of shell.
- 5. bow net arcing detection means as claimed in claim 1, it is characterised in that：The photoelectric sensor is ultraviolet photoelectric Sensor, the ultraviolet electric transducer include photomultiplier, and the photomultiplier is connected with optical fiber.
- 6. bow net arcing detection means as claimed in claim 1, it is characterised in that：The signal processing module includes shaping electricity Road, filter circuit and analog to digital conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720784183.XU CN206832944U (en) | 2017-06-30 | 2017-06-30 | A kind of bow net arcing detection means |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720784183.XU CN206832944U (en) | 2017-06-30 | 2017-06-30 | A kind of bow net arcing detection means |
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| Publication Number | Publication Date |
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| CN206832944U true CN206832944U (en) | 2018-01-02 |
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| CN201720784183.XU Active CN206832944U (en) | 2017-06-30 | 2017-06-30 | A kind of bow net arcing detection means |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444700A (en) * | 2018-12-29 | 2019-03-08 | 北京交通大学 | Bow net arc method for measuring and system |
| RU2697181C1 (en) * | 2018-04-11 | 2019-08-12 | Юрий Георгиевич Семёнов | Method of optical recording of current take-up failures |
| RU2708571C1 (en) * | 2019-03-25 | 2019-12-10 | Юрий Георгиевич Семёнов | Method for determination of current collection hazard |
| RU2735161C1 (en) * | 2020-06-16 | 2020-10-28 | Юрий Георгиевич Семёнов | Method for temperature determination of degree of danger of current take-off violation (version 2) |
| RU2735197C1 (en) * | 2020-06-15 | 2020-10-28 | Юрий Георгиевич Семёнов | Method for temperature determination of degree of danger of current take-off violation (version 1) |
| CN113295145A (en) * | 2021-05-20 | 2021-08-24 | 株洲中车时代电气股份有限公司 | System and method for detecting operation state of pantograph-catenary |
| CN114812903A (en) * | 2022-05-20 | 2022-07-29 | 无锡铁安轨道交通科技有限公司 | Bow net pressure 360-degree dynamic detection system for motor car |
-
2017
- 2017-06-30 CN CN201720784183.XU patent/CN206832944U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2697181C1 (en) * | 2018-04-11 | 2019-08-12 | Юрий Георгиевич Семёнов | Method of optical recording of current take-up failures |
| CN109444700A (en) * | 2018-12-29 | 2019-03-08 | 北京交通大学 | Bow net arc method for measuring and system |
| RU2708571C1 (en) * | 2019-03-25 | 2019-12-10 | Юрий Георгиевич Семёнов | Method for determination of current collection hazard |
| RU2735197C1 (en) * | 2020-06-15 | 2020-10-28 | Юрий Георгиевич Семёнов | Method for temperature determination of degree of danger of current take-off violation (version 1) |
| RU2735161C1 (en) * | 2020-06-16 | 2020-10-28 | Юрий Георгиевич Семёнов | Method for temperature determination of degree of danger of current take-off violation (version 2) |
| CN113295145A (en) * | 2021-05-20 | 2021-08-24 | 株洲中车时代电气股份有限公司 | System and method for detecting operation state of pantograph-catenary |
| CN114812903A (en) * | 2022-05-20 | 2022-07-29 | 无锡铁安轨道交通科技有限公司 | Bow net pressure 360-degree dynamic detection system for motor car |
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