CN201740514U - Device for measuring distance between two points - Google Patents
Device for measuring distance between two points Download PDFInfo
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- CN201740514U CN201740514U CN2010202325452U CN201020232545U CN201740514U CN 201740514 U CN201740514 U CN 201740514U CN 2010202325452 U CN2010202325452 U CN 2010202325452U CN 201020232545 U CN201020232545 U CN 201020232545U CN 201740514 U CN201740514 U CN 201740514U
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- image capture
- capture device
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Abstract
The utility model relates to the field of measuring device technology, in particular to a device for measuring the distance between two points. The device comprises an image collecting equipment, a length sensor and a processor, wherein the image collecting equipment can move between the two points to be measured and can collect the images of the two points to be measured so as to obtain the position coordinate data when the image collecting equipment collects the two points respectively; the length sensor can obtain the relative position coordinate data of the two points in an image collecting frame; and the distance of the two points can be operated by the processor according to the position coordinate data; the position coordinate data can be measured precisely; the operated distance data result has high precision; during the measuring process, the image and the position data can be collected when the points to be measured appear in the image collecting frame of the image collecting equipment; during the operation, the precision is not required; the image collecting equipment can be moved manually or by an instrument; therefore, the device can be operated conveniently and be used for measuring quickly, and is more effective to the long-distance measurement.
Description
Technical field:
The utility model relates to the measurement mechanism technical field, particularly measures the device of distance between two points.
Background technology:
Distance all is important information for numerous areas such as commercial production or home entertaining, and the mode of multiple mensuration distance is arranged in the prior art.For example, survey instruments such as the simplest employing ruler carry out the hand dipping distance, and perhaps by sending infrared ray, ultrasound wave, laser etc., the mode of echo and transmitted wave mistiming or phase differential of measuring is measured distance.But, adopt survey instrument such as ruler to measure the mode of distances, need people's manual operations, waste of manpower, and efficient is lower, is not easy to operation, and the distance of measuring when longer precision lower; And the mode of measuring distances such as employing emission infrared ray, ultrasound wave, laser need transmit and receive device accordingly, and these devices are general bigger, complex structure, it is all very inconvenient to carry placement, and, also need more hardware circuit, implement also relatively difficulty.
The utility model content:
The purpose of this utility model is to provide a kind of device of measuring the measurement distance between two points quick, easy to operate, that measuring accuracy is high at the deficiencies in the prior art.
For achieving the above object, the utility model adopts following technical scheme:
Measure the device of distance between two points, it includes the linear transducer that can move and tested point be carried out image capture device, measurement and the acquisition image capture device position data of image acquisition between two tested points, and being used for Flame Image Process and computing obtains 2 processors in image acquisition frame position data to be measured, image capture device is connected with processor signal by signal transmssion line respectively with linear transducer.
It also includes and the linear transducer parallel linear guides, and image capture device is slidingly connected on the line slideway.
It includes two orthogonal linear transducers.
Described linear transducer is the grating chi.
Described image capture device is the CCD/CMOS imageing sensor.
Described image capture device is one, and image capture device can move between two tested points.
Described image capture device also can be two, tested point of the corresponding collection of each image capture device.
The utility model beneficial effect is: the utility model includes image capture device, linear transducer, processor, image capture device is connected with processor signal by signal transmssion line respectively with linear transducer, image capture device can move between two tested points and tested point is carried out image acquisition, obtain the image capture device position coordinate data when gathering at 2 respectively, and linear transducer can obtain 2 relative position coordinates data in the image acquisition frame, utilize processor calculating to draw 2 distance according to these position coordinate datas, these position coordinate datas can accurately measure, the range data that generates is the precision height as a result, when measuring, only needing tested point just to appear in the image acquisition frame of image capture device can images acquired and position data, there is not accuracy requirement during operation, can manually or with apparatus move image capture device, easy to operate, measure fast, more effective to the measurement of long distance.
Description of drawings:
Fig. 1 is a principle schematic of the present utility model;
Fig. 2 is the principle schematic of another embodiment of the utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described, see shown in Figure 1, measure the device of distance between two points, include the linear transducer 2 that can between two tested points, move and tested point be carried out image capture device 1, measurement and acquisition image capture device 1 position data of image acquisition, and being used for Flame Image Process and computing obtains 2 processors 3 in image acquisition frame position data to be measured, image capture device 1 is connected with processor 3 signals by signal transmssion line respectively with linear transducer 2.Linear transducer 2 can be grating chi or other sensor, and image capture device 1 can adopt CCD/CMOS imageing sensor or other camera.
The utility model can be the frame mode of one-dimensional measurement, sets anchor point A at section start to be measured, sets anchor point B in end.Image capture device 1 is defined as the x direction of principal axis at A point and the mobile direction of B point, the x direction of principal axis is provided with linear transducer 2, image capture device 1 can move along the x direction of principal axis, can obtain the position data of image capture device 1 on the x direction of principal axis by linear transducer 2.On the x direction of principal axis line slideway 4 can be set, line slideway 4 is parallel with linear transducer 2, and image capture device 1 is slidingly connected on the line slideway 4, and image capture device 1 slides along line slideway 4 can guarantee accuracy requirement, slides steadily.
Utilize the method for the frame mode measurement distance between two points of above-mentioned one-dimensional measurement to be:
1, in image capture device 1, be reference body definition x ' y ' axial coordinate plane with the image acquisition frame of image capture device 1, make the x ' direction of principal axis on x ' y ' axial coordinate plane parallel, if not parallel can aligning by the mode of correction with the x direction of principal axis.
2, image capture device 1 is moved to A point place, the A point is appeared in the image acquisition frame, obtain the position numerical value x of image capture device 1 on the x direction of principal axis by linear transducer 2
A, carry out image acquisition by 1 pair of A point of image capture device, utilize processor 3 calculation process to obtain A point position coordinates (x with respect to x ' y ' axial coordinate plane in the image acquisition frame
A', y
A').
3, image capture device 1 is moved to B point place, the B point is appeared in the image acquisition frame, obtain the position numerical value x of image capture device 1 on the x direction of principal axis by linear transducer 2
B, carry out image acquisition by 1 pair of B point of image capture device, utilize processor 3 calculation process to obtain B point position coordinates (x with respect to x ' y ' axial coordinate plane in the image acquisition frame
B', y
B').
Wherein, image capture device can also can be two for one, the A point is carried out the image capture device 1 of image acquisition and can be same image capture device with the image capture device 1 that the B point is carried out image acquisition, 1 pair of A point of image capture device carries out moving to the B point after the image acquisition and carries out image acquisition; The A point is carried out the image capture device 1 of image acquisition and the image capture device 1 that the B point is carried out image acquisition and also can be two image capture devices independently, when x ' y ' axial coordinate plane of two image capture devices 1 of definition, can x ' y ' axial coordinate of two image capture devices 1 be complementary by the mode of proofreading and correct.
4, therefore, on the x direction of principal axis, the offset data of image capture device 1 when the A point moves to the B point is: x direction of principal axis offset x=x
B-x
A, promptly image capture device 1 is when the A point moves to the B point, and the side-play amount of true origin on the x direction of principal axis on x ' y ' axial coordinate plane is Δ x.
In x ' y ' axial coordinate plane, the station-keeping data between when B point and A point is: x ' direction of principal axis offset x '=x
B'-x
A', y ' direction of principal axis offset y '=y
B'-y
A'.
Utilize processor 3 to use following formula to determine distance between B point and the A point
The direction definition x direction of principal axis that the utility model moves with image capture device 1, image acquisition frame with image capture device 1 is reference body definition x ' y ' axial coordinate plane, utilize image capture device 1 respectively two tested points to be carried out image acquisition, obtain image capture device 1 position coordinates on the x direction of principal axis when gathering at 2 respectively, obtain 2 position coordinateses in the image acquisition frame simultaneously with respect to x ' y ' axial coordinate plane, determine 2 distance according to these position coordinate datas, these position coordinate datas can accurately measure, the range data that generates is the precision height as a result, when measuring, only needing tested point just to appear in the image acquisition frame of image capture device 1 can images acquired and position data, there is not accuracy requirement during operation, can manually or with apparatus move image capture device 1, easy to operate, measure fast, more effective to the measurement of long distance.
As another embodiment of the present utility model, see shown in Figure 2ly, different with a last embodiment is, the utility model can be the frame mode of two-dimensional measurement, sets anchor point A at section start to be measured, sets anchor point B in end.The plane that image capture device 1 is moved is defined as xy axial coordinate plane, x direction of principal axis and y direction of principal axis on xy axial coordinate plane respectively are provided with linear transducer 2, image capture device 1 can move in xy axial coordinate plane, can obtain the position data of image capture device 1 with respect to xy axial coordinate plane by linear transducer 2.
Utilize the method for the frame mode measurement distance between two points of above-mentioned two-dimensional measurement to be:
1, in image capture device 1, image acquisition frame with image capture device 1 is reference body definition x ' y ' axial coordinate plane, make the x ' direction of principal axis on x ' y ' axial coordinate plane parallel with the x direction of principal axis on xy axial coordinate plane, y ' the direction of principal axis on x ' y ' axial coordinate plane is parallel with the y direction of principal axis on xy axial coordinate plane, if not parallel can aligning by the mode of proofreading and correct.
2, image capture device 1 is moved to A point place, the A point is appeared in the image acquisition frame, obtain the position coordinates (x of image capture device 1 with respect to xy axial coordinate plane by linear transducer 2
A, y
A), carry out image acquisition by 1 pair of A point of image capture device, utilize processor 3 calculation process to obtain A point position coordinates (x with respect to x ' y ' axial coordinate plane in the image acquisition frame
A', y
A').
3, image capture device 1 is moved to B point place, the B point is appeared in the image acquisition frame, obtain the position coordinates (x of image capture device 1 with respect to xy axial coordinate plane by linear transducer 2
B, y
B), carry out image acquisition by 1 pair of B point of image capture device, utilize processor 3 calculation process to obtain B point position coordinates (x with respect to x ' y ' axial coordinate plane in the image acquisition frame
B', y
B').
Wherein, image capture device can also can be two for one, promptly the A point is carried out the image capture device 1 of image acquisition and can be same image capture device with the image capture device 1 that the B point is carried out image acquisition, 1 pair of A point of image capture device carries out moving to the B point after the image acquisition and carries out image acquisition; The A point is carried out the image capture device 1 of image acquisition and the image capture device 1 that the B point is carried out image acquisition and also can be two image capture devices independently, when x ' y ' axial coordinate plane of two image capture devices 1 of definition, can x ' y ' axial coordinate of two image capture devices 1 be complementary by the mode of proofreading and correct.
4, therefore, in xy axial coordinate plane, image capture device 1 offset data with respect to xy axial coordinate plane when the A point moves to the B point is: x direction of principal axis offset x=x
B-x
A, y direction of principal axis offset y=y
B-y
A, promptly image capture device 1 is when the A point moves to the B point, and the true origin on x ' y ' axial coordinate plane is (Δ x, Δ y) with respect to the side-play amount on xy axial coordinate plane.
In x ' y ' axial coordinate plane, the station-keeping data between when B point and A point is: x ' direction of principal axis offset x '=x
B'-x
A', y ' direction of principal axis offset y '=y
B'-y
A'.
Utilize processor 3 to use following formula to determine distance between B point and the A point
The plane definition xy axial coordinate plane that the utility model moves with image capture device 1, image acquisition frame with image capture device 1 is reference body definition x ' y ' axial coordinate plane, utilize image capture device 1 respectively two tested points to be carried out image acquisition, obtain image capture device 1 respectively when gathering at 2 with respect to the position coordinates on xy axial coordinate plane, obtain 2 position coordinateses in the image acquisition frame simultaneously with respect to x ' y ' axial coordinate plane, determine 2 distance according to these position coordinate datas, these position coordinate datas can accurately measure, the range data that generates is the precision height as a result, when measuring, only needing tested point just to appear in the image acquisition frame of image capture device 1 can images acquired and position data, there is not accuracy requirement during operation, can manually or with apparatus move image capture device 1, easy to operate, measure fast, more effective to the measurement of long distance.
The above only is preferred embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (7)
1. measure the device of distance between two points, it is characterized in that: it includes the linear transducer that can carry out image capture device, the measurement of image acquisition to two tested points respectively and obtain the image capture device position data, and being used for Flame Image Process and computing obtains 2 processors in image acquisition frame position data to be measured, image capture device is connected with processor signal by signal transmssion line respectively with linear transducer.
2. the device of measurement distance between two points according to claim 1 is characterized in that: it also includes and the linear transducer parallel linear guides, and image capture device is slidingly connected on the line slideway.
3. the device of measurement distance between two points according to claim 1 is characterized in that: it includes two orthogonal linear transducers.
4. the device of measurement distance between two points according to claim 1 is characterized in that: described linear transducer is the grating chi.
5. the device of measurement distance between two points according to claim 1 is characterized in that: described image capture device is the CCD/CMOS imageing sensor.
6. according to the method for any described measurement distance between two points of claim 1-5, it is characterized in that: described image capture device is one, and image capture device can move between two tested points.
7. according to the method for any described measurement distance between two points of claim 1-5, it is characterized in that: described image capture device is two, tested point of the corresponding collection of each image capture device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202325452U CN201740514U (en) | 2010-06-21 | 2010-06-21 | Device for measuring distance between two points |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202325452U CN201740514U (en) | 2010-06-21 | 2010-06-21 | Device for measuring distance between two points |
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| CN201740514U true CN201740514U (en) | 2011-02-09 |
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| CN2010202325452U Expired - Fee Related CN201740514U (en) | 2010-06-21 | 2010-06-21 | Device for measuring distance between two points |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962746A (en) * | 2012-11-07 | 2013-03-13 | 陕西理工学院 | Roller way grinding and positioning device for ball screw nut |
| CN103808278A (en) * | 2014-03-06 | 2014-05-21 | 西安电子科技大学 | Measurement system and measurement method for optical fibre morphology |
| CN104390654A (en) * | 2014-11-28 | 2015-03-04 | 奇瑞商用车（安徽）有限公司 | Speed-measuring and distance-measuring instrument for car |
| CN105841622A (en) * | 2016-05-04 | 2016-08-10 | 中国建筑第八工程局有限公司 | Steel wire rope cable force test method and device |
| CN107957245A (en) * | 2017-12-29 | 2018-04-24 | 江苏宏宝锻造股份有限公司 | Engine link dimension measuring device and its measuring method based on machine vision |
| CN110941001A (en) * | 2019-12-23 | 2020-03-31 | 北京讯腾智慧科技股份有限公司 | Positioning data acquisition method, system, terminal and storage medium in complex environment |
-
2010
- 2010-06-21 CN CN2010202325452U patent/CN201740514U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962746A (en) * | 2012-11-07 | 2013-03-13 | 陕西理工学院 | Roller way grinding and positioning device for ball screw nut |
| CN103808278A (en) * | 2014-03-06 | 2014-05-21 | 西安电子科技大学 | Measurement system and measurement method for optical fibre morphology |
| CN104390654A (en) * | 2014-11-28 | 2015-03-04 | 奇瑞商用车（安徽）有限公司 | Speed-measuring and distance-measuring instrument for car |
| CN105841622A (en) * | 2016-05-04 | 2016-08-10 | 中国建筑第八工程局有限公司 | Steel wire rope cable force test method and device |
| CN107957245A (en) * | 2017-12-29 | 2018-04-24 | 江苏宏宝锻造股份有限公司 | Engine link dimension measuring device and its measuring method based on machine vision |
| CN110941001A (en) * | 2019-12-23 | 2020-03-31 | 北京讯腾智慧科技股份有限公司 | Positioning data acquisition method, system, terminal and storage medium in complex environment |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20120621 |