CN103913598A - Calibration system for vehicle velometer - Google Patents
Calibration system for vehicle velometer Download PDFInfo
- Publication number
- CN103913598A CN103913598A CN201210591829.4A CN201210591829A CN103913598A CN 103913598 A CN103913598 A CN 103913598A CN 201210591829 A CN201210591829 A CN 201210591829A CN 103913598 A CN103913598 A CN 103913598A
- Authority
- CN
- China
- Prior art keywords
- measuring instrument
- vehicle speed
- speed measuring
- flat
- vehicle
- 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.)
- Pending
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
Disclosed is a calibration system for a vehicle velometer. The calibration system includes a computer, a flat-panel display and a vehicle-velometer fixing support. The vehicle-velometer fixing support is fixedly arranged right ahead the flat-panel display. A display interface of the computer is connected with the flat-panel display. The computer includes a communication interface with is connected with a data output interface of the vehicle velometer. The vehicle velometer is arranged in the vehicle-velometer fixing support. The calibration system for the vehicle velometer uses the computer to generate moving reflected light signals on the flat-panel display and then the signals are provided to the vehicle velometer for measurement so that the reflected light signals can be strengthened and measurement errors can be reduced. The moving speed of the reflected light signals measured by the vehicle velometer and the practical moving speed of the light signals are compared so that speed measurement errors of the vehicle velometer can be obtained. The calibration system for the vehicle velometer is capable of setting the moving speed of the reflected light signals and accurately obtaining the practical moving speed of the reflected light signals so that errors are reduced significantly; and at the same time, the size is small and the structure is simple.
Description
Technical field:
The present invention relates to physical field, relate in particular to the collimation technique of vehicle speed measuring instrument, particularly, for calibrating the technology of vehicle speed measuring instrument, concrete is a kind of calibration system of vehicle speed measuring instrument.
Background technology:
Available technology adopting vehicle speed measuring instrument carrys out the speed of measuring vehicle, in vehicle speed measuring instrument, include photoelectric sensor, vehicle speed measuring instrument is with vehicle mobile, photoelectric sensor detects the reflected light signal of the speckle image on road surface, utilize processor in vehicle speed measuring instrument to reflected light signal identify, processing and computing, thereby obtain the translational speed of photoelectric sensor with respect to road surface, obtain the speed of vehicle.Available technology adopting simulation moving pavement device is calibrated vehicle speed measuring instrument, simulation moving pavement device is made up of synchronous cog belt and one group of synchromesh gear, on the outer surface of synchronous cog belt, be provided with Christmas tree pattern, synchromesh gear is driven by motor, synchromesh gear is provided with photoelectric encoder, the photoelectric sensor of vehicle speed measuring instrument obtains the light signal of Christmas tree pattern from the outer surface of synchronous cog belt, measure the linear velocity of synchronous cog belt, again with synchromesh gear on the actual linear velocity comparison of the synchronous cog belt that provides of photoelectric encoder, obtain the range rate error of vehicle speed measuring instrument.Because synchronous cog belt is driven by mechanical hook-up, travelling speed is non-constant, and testing result error is larger, because photoelectric sensor requires the plane of reflection of 100 centimetres of 80 cm x, therefore the width of synchronous cog belt is larger, causes simulation moving pavement device volume large, complex structure.
Summary of the invention:
The object of this invention is to provide a kind of calibration system of vehicle speed measuring instrument, the calibration system of described this vehicle speed measuring instrument will solve in prior art that simulation moving pavement device testing result error is large, large, the baroque technical matters of volume.
The calibration system of this vehicle speed measuring instrument of the present invention comprises a computing machine, a flat-panel monitor and a vehicle speed measuring instrument fixed support, wherein, described vehicle speed measuring instrument fixed support is fixedly installed on the dead ahead of described flat-panel monitor, the display interface of described computing machine is connected with flat-panel monitor, computing machine includes a communication interface, described communication interface is connected with the data output interface of vehicle speed measuring instrument, vehicle speed measuring instrument is arranged in vehicle speed measuring instrument fixed support, utilize computing machine on flat-panel monitor, to produce a mobile graphics, the brightness of described mobile graphics is higher than all the other viewing areas of flat-panel monitor, utilize computing machine to read the translational speed of the mobile graphics that vehicle speed measuring instrument records, and the translational speed of the mobile graphics of the translational speed recording and computing machine working control is compared.
Further, the viewing area of described flat-panel monitor is greater than 100 centimetres of 80 cm x.
Further, described flat-panel monitor is fixedly installed on a display bracket, and described display bracket is relative fixing with vehicle speed measuring instrument fixed support.
Principle of work of the present invention is: computing machine is lighted a figure on flat-panel monitor, and move this figure by constant speed to a direction, the photoelectric sensor of vehicle speed measuring instrument obtains the light signal of figure from flat-panel monitor front, measure the translational speed of figure, be sent to again computing machine, the actual speed comparison of itself and figure being moved by computing machine, can obtain the range rate error of vehicle speed measuring instrument.
The present invention and prior art contrast, and its effect is actively with obvious.The present invention utilizes computing machine on flat-panel monitor, to produce mobile reflected light signal, offering vehicle speed measuring instrument measures, can strengthen reflected light signal, reduce measuring error, the actual speed comparison that the translational speed of the reflected light signal that vehicle speed measuring instrument is recorded and light signal move, can obtain the range rate error of vehicle speed measuring instrument.The present invention can constant reflected light signal translational speed, and accurately obtain the actual speed that reflected light signal moves, greatly reduced error, meanwhile, volume is little, simple in structure.
Accompanying drawing explanation:
Fig. 1 is the schematic diagram of the calibration system of the vehicle speed measuring instrument in the present invention.
Embodiment:
Embodiment 1:
As shown in Figure 1, the calibration system of vehicle speed measuring instrument of the present invention, comprise a computing machine 1, a flat-panel monitor 2 and a vehicle speed measuring instrument fixed support 3, wherein, described vehicle speed measuring instrument fixed support 3 is fixedly installed on the dead ahead of described flat-panel monitor 2, the display interface of described computing machine 1 is connected with flat-panel monitor 2, computing machine 1 includes a communication interface, described communication interface is connected with the data output interface of vehicle speed measuring instrument 4, vehicle speed measuring instrument 4 is arranged in vehicle speed measuring instrument fixed support 3, utilize computing machine 1 on flat-panel monitor 2, to produce a mobile graphics, the brightness of described mobile graphics is higher than all the other viewing areas of flat-panel monitor 2, utilize computing machine 1 to read the translational speed of the mobile graphics that vehicle speed measuring instrument 4 records, and the translational speed of the mobile graphics of the translational speed recording and computing machine 1 working control is compared.
Further, the viewing area of described flat-panel monitor 2 is greater than 100 centimetres of 80 cm x.
Further, described flat-panel monitor 2 is fixedly installed on a display bracket 5, and described display bracket 5 is relative fixing with vehicle speed measuring instrument fixed support 3.
The principle of work of the present embodiment is: computing machine 1 is lighted a figure on flat-panel monitor 2, and move this figure by constant speed to a direction, the photoelectric sensor of vehicle speed measuring instrument 4 obtains the light signal of figure from flat-panel monitor 2 fronts, measure the translational speed of figure, be sent to again computing machine 1, the actual speed comparison of itself and figure being moved by computing machine 1, can obtain the range rate error of vehicle speed measuring instrument 4.
Claims (3)
1. the calibration system of a vehicle speed measuring instrument, comprise a computing machine, a flat-panel monitor and a vehicle speed measuring instrument fixed support, it is characterized in that: described vehicle speed measuring instrument fixed support is fixedly installed on the dead ahead of described flat-panel monitor, the display interface of described computing machine is connected with flat-panel monitor, computing machine includes a communication interface, described communication interface is connected with the data output interface of vehicle speed measuring instrument, vehicle speed measuring instrument is arranged in vehicle speed measuring instrument fixed support, utilize computing machine on flat-panel monitor, to produce a mobile graphics, the brightness of described mobile graphics is higher than all the other viewing areas of flat-panel monitor, utilize computing machine to read the translational speed of the mobile graphics that vehicle speed measuring instrument records, and the translational speed of the mobile graphics of the translational speed recording and computing machine working control is compared.
2. the calibration system of vehicle speed measuring instrument as claimed in claim 1, is characterized in that: the viewing area of described flat-panel monitor is greater than 100 centimetres of 80 cm x.
3. the calibration system of vehicle speed measuring instrument as claimed in claim 1, is characterized in that: described flat-panel monitor is fixedly installed on a display bracket, and described display bracket is relative fixing with vehicle speed measuring instrument fixed support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210591829.4A CN103913598A (en) | 2012-12-31 | 2012-12-31 | Calibration system for vehicle velometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210591829.4A CN103913598A (en) | 2012-12-31 | 2012-12-31 | Calibration system for vehicle velometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103913598A true CN103913598A (en) | 2014-07-09 |
Family
ID=51039436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210591829.4A Pending CN103913598A (en) | 2012-12-31 | 2012-12-31 | Calibration system for vehicle velometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103913598A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426584A (en) * | 2017-02-14 | 2018-08-21 | 厦门雅迅网络股份有限公司 | The calibration method of automobile multisensor |
| CN110412314A (en) * | 2019-07-25 | 2019-11-05 | 金华市蓝海光电技术有限公司 | A kind of tachymeter calibrating installation |
| CN111433705A (en) * | 2017-12-05 | 2020-07-17 | 日本电产株式会社 | Moving body and transfer robot |
-
2012
- 2012-12-31 CN CN201210591829.4A patent/CN103913598A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426584A (en) * | 2017-02-14 | 2018-08-21 | 厦门雅迅网络股份有限公司 | The calibration method of automobile multisensor |
| CN108426584B (en) * | 2017-02-14 | 2022-02-01 | 厦门雅迅网络股份有限公司 | Calibration method for multiple sensors of automobile |
| CN111433705A (en) * | 2017-12-05 | 2020-07-17 | 日本电产株式会社 | Moving body and transfer robot |
| CN110412314A (en) * | 2019-07-25 | 2019-11-05 | 金华市蓝海光电技术有限公司 | A kind of tachymeter calibrating installation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103344258B (en) | Servo system of electro-optic theodolite performance testing device and method of testing | |
| CN201110756Y (en) | Apparatus for measuring continuous vertical deflection / displacement | |
| EA201301322A1 (en) | DEVICE FOR MEASURING THE SPEED AND POSITION OF A VEHICLE MOVING ALONG THE DIRECTIONAL TRAILER, METHOD AND RELATED COMPUTER SOFTWARE PRODUCT | |
| CN104534953A (en) | Method for measuring three-dimensional relative displacement through guyed displacement sensors | |
| CN104344818A (en) | Vertical detection device and method | |
| FR2905456B1 (en) | OPTICAL DETECTION DEVICE FOR POSITIONING AND / OR ORIENTATION OF OBJECTS AND DETECTION METHODS THEREFOR. | |
| CN104929024A (en) | Road surface evenness detector and road surface evenness measuring method | |
| CN204202558U (en) | A kind of inversion type picture size detects and measurement mechanism | |
| CN103900490A (en) | Device and method for detecting ovality of tyre | |
| CN103913598A (en) | Calibration system for vehicle velometer | |
| CN204064249U (en) | Tyre surface machine vision length measuring apparatus | |
| CN108132058A (en) | Digital Photogrammetric System on-line displacement measurement calibrates for error device and method | |
| CN103630098B (en) | The non-contact detection method of straight-line displacement platform Motion Parallel degree | |
| CN102353520B (en) | Delay amount measuring method applied for fiber delay line measuring system and realization apparatus thereof | |
| CN104005324A (en) | Pavement texture information detection system | |
| GB201009586D0 (en) | Imaging apparatus and method | |
| CN102914414A (en) | Vibration measuring instrument based on Android platform mobile phone and detection method thereof | |
| CN205245996U (en) | Fume chamber window height measurement system | |
| CN203054004U (en) | Calibration apparatus for vehicle tachymeter | |
| CN102621553B (en) | Method for positioning obstacle distance and assistant driving system adopting method | |
| CN102322821B (en) | Equipment and method for automatically measuring water escape nappe shape in hydraulic model test | |
| Tang et al. | Research on displacement measurement of disk vibration based on machine vision technique | |
| GB2512005A (en) | Coordinate measurement machines with removable accessories | |
| CN104655027A (en) | Small height detection method and system | |
| CN105180887A (en) | Wide span beam deflection deformation measuring method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140709 |