CN202102003U - High-speed anti-interference speed detector - Google Patents
High-speed anti-interference speed detector Download PDFInfo
- Publication number
- CN202102003U CN202102003U CN2011201664317U CN201120166431U CN202102003U CN 202102003 U CN202102003 U CN 202102003U CN 2011201664317 U CN2011201664317 U CN 2011201664317U CN 201120166431 U CN201120166431 U CN 201120166431U CN 202102003 U CN202102003 U CN 202102003U
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- light
- optical fiber
- speed
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Abstract
The utility model discloses a high-speed anti-interference speed detector which comprises a speed sensor, an optical fiber transmission loading connection line and a photoelectric conversion box, wherein the photoelectric conversion box is connected to the speed sensor by the optical fiber transmission loading connection line, the speed sensor is connected to the axle of a vehicle, and the photoelectric conversion box is electrically connected to a vehicle monitoring device. The high-speed anti-interference speed detector has the technical effects of realizing conversion from speed signals into optical pulse signals by adopting a mechanical drive principle, utilizing mechanical devices inside the sensor and continuously stopping and conducting the transmission path of a light source. In addition, optical fibers are adopted for signal transmission, and external electromagnetic interference can not cause interference on light signal transmitted inside the optical fibers. The light signal is sent to the monitoring device through the photoelectric conversion box, thus being capable of obtaining an accurate speed detection value.
Description
Technical field
The utility model relates to a kind of device that is used for the machines vehicle speed, the anti-interference speed detector of particularly a kind of high speed.
Background technology
The speed detector that present common locomotive, EMUs adopt mainly contains the speed pickup of three types of photoelectricity class, Hall class and magnetoelectricity classes etc.Above-mentioned various speed detection sensor all has application according to different environments for use.But to bullet train, its electromagnetic environment is very complicated, has multiple interference.Interference source influences above-mentioned speed pickup through all approach, causes rate signal unusual, even the scaling loss watch-dog.Simultaneously when but the interfering frequency on the rate signal line is in the monitoring sensing range, moment the speed that arrives of monitoring and detection just high than actual speed, cause the velocity jump of detection, cause testing result inaccurate.
The utility model content
In order to solve existing locomotive speed pick-up unit inaccurate technical matters of testing result under the condition of bullet train electromagnetism situation complicacy, the utility model provides a kind of can still can guarantee the testing result anti-interference speed detector of high speed accurately under the situation of electromagnetism inclement condition.
In order to realize above-mentioned technical purpose; The technical scheme of the utility model is; The anti-interference speed detector of a kind of high speed comprises speed pickup, Optical Fiber Transmission get on the bus line and optic/electro converter box, and described optic/electro converter box is connected to speed pickup through the Optical Fiber Transmission line of getting on the bus; Described speed pickup is connected to the axletree of vehicle, and described optic/electro converter box is electrically connected to the supervising device of vehicle.
The anti-interference speed detector of described a kind of high speed; Described speed pickup comprises and is used to connect axletree and with axletree web member, light sensor and the lenticular lenses of axletree rotation; Described light sensor comprises light emitted end and light source receiving end; Described lenticular lenses is the light tight plate with the identical and uniform light hole of spacing of a plurality of sizes; Lenticular lenses is connected to axletree through the axletree web member and with the axletree rotation, the light emitted end of described light sensor and light source receiving end are mounted to the both sides of lenticular lenses respectively.
The anti-interference speed detector of described a kind of high speed; Described Optical Fiber Transmission is got on the bus and is comprised that light emitted optical fiber and light source receive optical fiber in the line; One end of described light emitted optical fiber is connected to the output terminal of optic/electro converter box; The other end is connected to the light emitted end of light sensor, and an end of described light source reception optical fiber is connected to the input end of optic/electro converter box, and the other end is connected to the light source receiving end of light sensor.
The anti-interference speed detector of described a kind of high speed; Described optic/electro converter box comprises power circuit, illuminating circuit, light receiving circuit, small-signal filter amplification circuit, voltage comparator circuit, level-conversion circuit and signal output apparatus; Described power circuit is connected to illuminating circuit and light receiving circuit respectively; Described light receiving circuit, small-signal filter amplification circuit, voltage comparator circuit, level-conversion circuit and signal output apparatus are connected successively; Illuminating circuit also is connected to light emitted optical fiber, and light receiving circuit also is connected to light source and receives optical fiber.
The technique effect of the utility model is, through adopting mechanical drive principle, utilizes the mechanical hook-up of sensor internal, and the obstruct that does not stop is the travel path of conducting light source again, realizes converting rate signal into light pulse signal synchronously.Adopt optical fiber to carry out the signal transmission simultaneously, outside electromagnetic interference (EMI) can not cause interference to the light signal of inside of optical fibre transmission.Light signal can obtain speed detected value accurately through giving supervising device behind the optic/electro converter box.
Below in conjunction with accompanying drawing the utility model is described further.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the synoptic diagram of the utility model measuring principle;
Fig. 3 is the installation site synoptic diagram of the utility model light sensor and lenticular lenses;
Fig. 4 is the circuit diagram of the utility model optic/electro converter box;
Wherein, 1 is speed pickup, and 2 are the Optical Fiber Transmission line of getting on the bus, and 3 is optic/electro converter box, and 4 is the axletree web member, and 5 is light sensor, and 6 is lenticular lenses, and 7 is the light emitted end, and 8 is the light source receiving end, and 9 is light emitted optical fiber, and 10 is that light source receives optical fiber.
Embodiment
Referring to Fig. 1, optic/electro converter box 3 is connected to speed pickup 1 through the Optical Fiber Transmission line 2 of getting on the bus, and speed pickup 1 is connected to the axletree of vehicle through axletree web member 4, and optic/electro converter box 3 is electrically connected to the supervising device of vehicle.Get on the bus line 2 of Optical Fiber Transmission adopts the plastic optical fiber of high flexibilities, low bending radius, high reliability to carry out the transmission of light source.Adopt this scheme not only to avoid occurring silica fibre frangible, frangible and problem that bending radius is high, can use professional equipment to carry out installation and maintenance simultaneously, brought convenience for maintenance, dismounting etc.
Referring to Fig. 2, Fig. 3, optic/electro converter box 3 emits beam through illuminating circuit, and light is sent to the light emitted end 7 of light sensor 5 through get on the bus light emitted optical fiber 9 in the line 2 of Optical Fiber Transmission; Light emitted end 7 sends light; Lenticular lenses 6 is rotated with axletree, and when the light hole on the lenticular lenses 6 went to light sensor 5, light can expose to the light source receiving end 8 of light sensor 5; Behind the light hole turn-off, light is promptly intercepted.Light source receiving end 8 receives the light receiving circuit that optical fiber 10 transfers to optic/electro converter box 3 with the light that receives through light source.
Referring to Fig. 4; Power circuit in the optic/electro converter box 3 is that illuminating circuit and light receiving circuit provide power supply; After light receiving circuit is accepted light,, convert light signal into pulse electrical signal through small-signal filter amplification circuit, voltage comparator circuit, level-conversion circuit and signal output apparatus; And the pulse electrical signal signal sent the supervising device of vehicle, the speed that can accomplish locomotive detects.
Claims (4)
1. anti-interference speed detector of high speed; It is characterized in that; Comprise speed pickup, Optical Fiber Transmission get on the bus line and optic/electro converter box; Described optic/electro converter box is connected to speed pickup through the Optical Fiber Transmission line of getting on the bus, and described speed pickup is connected to the axletree of vehicle, and described optic/electro converter box is electrically connected to the supervising device of vehicle.
2. the anti-interference speed detector of a kind of high speed according to claim 1; It is characterized in that; Described speed pickup comprises and is used to connect axletree and with axletree web member, light sensor and the lenticular lenses of axletree rotation; Described light sensor comprises light emitted end and light source receiving end; Described lenticular lenses is the light tight plate with the identical and uniform light hole of spacing of a plurality of sizes, and lenticular lenses is connected to axletree through the axletree web member and with the axletree rotation, the light emitted end of described light sensor and light source receiving end are mounted to the both sides of lenticular lenses respectively.
3. the anti-interference speed detector of a kind of high speed according to claim 2; It is characterized in that; Described Optical Fiber Transmission is got on the bus and is comprised that light emitted optical fiber and light source receive optical fiber in the line, and an end of described light emitted optical fiber is connected to the output terminal of optic/electro converter box, and the other end is connected to the light emitted end of light sensor; One end of described light source reception optical fiber is connected to the input end of optic/electro converter box, and the other end is connected to the light source receiving end of light sensor.
4. the anti-interference speed detector of a kind of high speed according to claim 3; It is characterized in that; Described optic/electro converter box comprises power circuit, illuminating circuit, light receiving circuit, small-signal filter amplification circuit, voltage comparator circuit, level-conversion circuit and signal output apparatus; Described power circuit is connected to illuminating circuit and light receiving circuit respectively; Described light receiving circuit, small-signal filter amplification circuit, voltage comparator circuit, level-conversion circuit and signal output apparatus are connected successively, and illuminating circuit also is connected to light emitted optical fiber, and light receiving circuit also is connected to light source and receives optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201664317U CN202102003U (en) | 2011-05-24 | 2011-05-24 | High-speed anti-interference speed detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201664317U CN202102003U (en) | 2011-05-24 | 2011-05-24 | High-speed anti-interference speed detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202102003U true CN202102003U (en) | 2012-01-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201664317U Expired - Lifetime CN202102003U (en) | 2011-05-24 | 2011-05-24 | High-speed anti-interference speed detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202102003U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439526A (en) * | 2013-08-28 | 2013-12-11 | 宁波南车时代传感技术有限公司 | Optical fiber type speed sensor for rail transit |
| CN104360096A (en) * | 2014-12-08 | 2015-02-18 | 丹东华信测控技术有限公司 | Speed measuring device capable of utilizing optical fiber transmission |
| CN109965776A (en) * | 2017-12-23 | 2019-07-05 | 天佑电器（苏州）有限公司 | Driving device and burnisher |
| CN110865201A (en) * | 2019-12-12 | 2020-03-06 | 长沙楠车电气设备有限公司 | Optical fiber rotating speed sensor |
| TWI798804B (en) * | 2021-08-31 | 2023-04-11 | 陳冠名 | Laser jammer and implementation method thereof |
-
2011
- 2011-05-24 CN CN2011201664317U patent/CN202102003U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439526A (en) * | 2013-08-28 | 2013-12-11 | 宁波南车时代传感技术有限公司 | Optical fiber type speed sensor for rail transit |
| CN104360096A (en) * | 2014-12-08 | 2015-02-18 | 丹东华信测控技术有限公司 | Speed measuring device capable of utilizing optical fiber transmission |
| CN109965776A (en) * | 2017-12-23 | 2019-07-05 | 天佑电器（苏州）有限公司 | Driving device and burnisher |
| CN110865201A (en) * | 2019-12-12 | 2020-03-06 | 长沙楠车电气设备有限公司 | Optical fiber rotating speed sensor |
| TWI798804B (en) * | 2021-08-31 | 2023-04-11 | 陳冠名 | Laser jammer and implementation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |
|
| CX01 | Expiry of patent term |