CN104567688A - Method for automatically measuring width and height of object through laser - Google Patents
Method for automatically measuring width and height of object through laser Download PDFInfo
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- CN104567688A CN104567688A CN201410684812.2A CN201410684812A CN104567688A CN 104567688 A CN104567688 A CN 104567688A CN 201410684812 A CN201410684812 A CN 201410684812A CN 104567688 A CN104567688 A CN 104567688A
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Abstract
The invention discloses a method for automatically measuring the width and the height of an object through laser. The method comprises the following steps: calculating the maximum effective angle of a laser distance measuring sensor for side-to-side movement by using an angle sensor, calculating two effective side lengths corresponding to the calculated maximum effective angle, calculating the width of the object according to the calculated maximum effective angle and the two effective side lengths corresponding to the maximum effective angle, controlling the laser distance measuring sensor to move upwards and downwards at a certain time interval, continuously implementing the operation so as to obtain the width of the object when the laser distance measuring sensor moves upwards and downwards, and to furthermore obtain the maximum object width, and analyzing the distance, when moves upwards and downwards, of the laser distance measuring sensor, thereby obtaining the height of the object. The method is simple to operate and easy to realize.
Description
Technical field
The present invention relates to a kind of infrared laser ranging method, particularly relate to a kind of by the wide high method of laser automatic measuring amount object, belong to laser ranging field.
Background technology
Forming a concept among the consciousness of usual people, is exactly that precision measurement generally uses vernier caliper and milscale, then adopts three-dimensional during precision measurement; If fruit product is when about one meter or more than one meter, general people use meter ruler or Steel Ruler; These measuring methods otherwise just can only measure miscellaneous goods, however it is inaccurate to measure large product measurement result; The survey instruments such as meter ruler, Steel Ruler, vernier caliper and milscale can only simultaneously a kind of numerical value of one-shot measurement, two groups of data (wide, high) can not be shown simultaneously, precision when measuring in addition depends on the gimmick of people to a great extent, measuring accuracy error is very large, be exactly that automaticity is low in addition, inefficiency.Generally we can see height gauge on highway, and the instrument do not detected.
Along with the fast development of China's economy, expressway construction and transport by road scale are obtained for unprecedented development, and the vehicle overload overloading brought thus is also day by day serious.Overload transport can shorten the serviceable life of highway and bridge on the one hand, can cause the change of body shapes and the decline of vehicle performance on the other hand, forms the hidden trouble of traffic safety.At present, vehicle ultra-wide superelevation administers the important component part as overload remediation work, is mostly also in the artificial stage, surveys wide height primarily of staff's tape measure or bamboo pole, both added the workload of staff, again reduced work efficiency.
Such as application number is the one dynamically wide high detection instrument of unmanned control automatically of " 201320697849.X ", portal frame left mounting bracket, support is connected with computing machine, first port in computing machine one end and data collecting card is connected, the computing machine other end is connected with printer, data collecting card second port is connected with data source, above portal frame, crossbeam is installed, crossbeam is connected with fiber optic emitter, fiber optic emitter inside is provided with LD light source, horizontal spectrum absorbing sheet is connected with ground, horizontal spectrum absorbing sheet installed in front front sensor, sensor after installing on rear side of horizontal spectrum absorbing sheet, spectral absorption sheet in gantry embeds the inner side being installed on portal frame, cross rail top installs sun power sheet, and sun power sheet is connected with solar converter, and solar converter is connected with accumulator, and accumulator provides power supply for the dynamic wide high detection instrument of unmanned automatic control.Should
utility model existsmeasuring accuracy and metering system need further to be improved.
And for example application number is the wide high detection instrument of a kind of automobile of " 201320697489.3 ", portal frame left mounting bracket, support is connected with computing machine, computing machine one end is connected with data collecting card, the computing machine other end is connected with printer, above portal frame, crossbeam is installed, crossbeam is connected with fiber optic emitter, fiber optic emitter inside is provided with LD light source, horizontal spectrum absorbing sheet is connected with ground, horizontal spectrum absorbing sheet installed in front front sensor, sensor after installing on rear side of horizontal spectrum absorbing sheet, spectral absorption sheet in gantry embeds the inner side being installed on portal frame; Should
utility modelstructure is simple, and can realize accurately without the need to manually, automatically measure width and the height of automobile, and automatically open through out-of-date detector at automobile, when automobile leaves, this detector is closed automatically, economize energy; The wide high detection instrument of this automobile is provided with printer, the data through vehicle can be carried out statistics and form written information and print, also can print the information of single vehicle, but cost higher and measuring accuracy and mode need to be further improved.
Summary of the invention
Technical matters to be solved by this invention provides a kind of by the wide high method of laser automatic measuring amount object for the deficiency of background technology, and its method is simple, cost is lower and measuring accuracy is high, can be accurately calculated the wide height of object by infrared laser.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
By the wide high method of laser automatic measuring amount object, specifically comprise following steps:
Step 1, adopts laser range sensor to measure testee with swinging, and obtains laser range sensor and effectively takes measurement of an angle relative to the maximum of testee in swing process;
Step 2, obtain the distance value of initial effective measurement that laser range sensor obtains when once swinging measurement and at the end of the distance value effectively measured;
Step 3, according to maximum two distance values obtained with step 2 that effectively take measurement of an angle that step 1 obtains, calculates the width of object under test according to triangle theorem;
Step 4, control laser range sensor with certain hour spacing to move up and down, proceed step 1 to step 3 simultaneously, object width corresponding when showing that laser range sensor moves up and down, choose the width as testee that width value is maximum, the distance analysis moved up and down by laser range sensor draws the height of object, is shown height and the width of object under test by display unit in real time simultaneously.
As a kind of further preferred version by the wide high method of laser automatic measuring amount object of the present invention, described maximum effectively taking measurement of an angle is less than 180 °.
As a kind of further preferred version by the wide high method of laser automatic measuring amount object of the present invention, in step 1, described laser range sensor is LMS type double-pulse laser distance measuring sensor.
As a kind of further preferred version by the wide high method of laser automatic measuring amount object of the present invention, in step 1, adopt angular transducer to obtain laser range sensor effectively to take measurement of an angle relative to the maximum of testee in swing process.
As a kind of further preferred version by the wide high method of laser automatic measuring amount object of the present invention, in step 4, described display unit is LCD display.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1, the inventive method is simple, cost is lower and measuring accuracy is measured high than manpower;
2, the present invention can measure the wide and high of object automatically, saves manpower;
3, the present invention can calculate width and the height of object under test according to generating laser and laser pickoff move up and down and the swing effective angle that produces and effective electrical distance of correspondence thereof.
Embodiment
Below technical scheme of the present invention is described in further detail:
By the wide high method of laser automatic measuring amount object, specifically comprise following steps:
Step 1, adopts laser range sensor to measure testee with swinging, and obtains laser range sensor and effectively takes measurement of an angle relative to the maximum of testee in swing process;
Step 2, obtain the distance value of initial effective measurement that laser range sensor obtains when once swinging measurement and at the end of the distance value effectively measured;
Step 3, according to maximum two distance values obtained with step 2 that effectively take measurement of an angle that step 1 obtains, calculates the width of object under test according to triangle theorem;
Step 4, control laser range sensor with certain hour spacing to move up and down, proceed step 1 to step 3 simultaneously, object width corresponding when showing that laser range sensor moves up and down, choose the width as testee that width value is maximum, the distance analysis moved up and down by laser range sensor draws the height of object, is shown height and the width of object under test by display unit in real time simultaneously.
Wherein, described maximum effectively taking measurement of an angle is less than 180 °, in step 1, described laser range sensor is LMS type double-pulse laser distance measuring sensor, in step 1, adopt angular transducer to obtain laser range sensor effectively to take measurement of an angle relative to the maximum of testee in swing process, in step 4, described display unit is LCD display.
Laser, with advantages such as its high brightness, high directivity, high monochromaticities, is widely used in various fields of measurement.The modes such as infrared distance measurement is compared in laser ranging, ultrasonic ranging, have speed fast, real-time, obtain data precision high.Laser ranging technique is at automobile collision preventing, and building or vacant lot safety custody, the fields such as track traffic obtain applies widely.Fast in order to meet object wide high detection systematic survey speed, the requirement that measuring accuracy is high, also considers that system even can be worked at night at the environment that visibility is poor, the LMS type double-pulse laser distance measuring sensor that system selects German SICK company to produce.
LMS laser sensor is contactless high precision, the high-res external sensor of a kind of outdoor type, its principle of work is based on the measurement to the laser beam flight time, it sends laser pulse according to the time interval defined, and obtains the distance between testee by the timer time interval calculated between transponder pulse and received pulse.The motor of pulse laser beam through distance measuring sensor inside carries out up and down and the wide and height of side-to-side movement team object carries out scanning survey.
A kind of controller related to by the wide high method of laser automatic measuring amount object is AVR single chip, AVR single chip has prefetched instruction function, namely when an execution instruction, in advance next instruction is got into, call instruction can be performed within a clock period; Multiple accumulator type, data processing speed is fast; AVR single chip has 32 general purpose working registers, and being equivalent to has 32 viaducts, can fast passing; Response time is fast.AVR single chip has multiple fixing interrupt vector entry address, can respond interruption fast; AVR single chip power consumption is low.For typical power consumption situation, be 100nA when WDT closes, be more suitable for battery powered application apparatus; Minimum 1.8 V of some devices get final product work; AVR single chip security performance is good.
A kind of by the wide high method of laser automatic measuring amount object, angular transducer is adopted to calculate the maximum effective angle of laser range sensor side-to-side movement, the maximum effective angle calculated draws two the effective length of sides corresponding with it, the maximum effective angle calculated and corresponding with it two effective length of sides can draw the width of object, control laser range sensor with certain hour spacing to move up and down, proceed above operation simultaneously, object width corresponding when showing that laser range sensor moves up and down and then gather and draw largest object width, the distance analysis moved up and down by laser range sensor draws the height of object.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.Above embodiments of the present invention are explained in detail, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, makes a variety of changes under can also or else departing from the prerequisite of present inventive concept.
Claims (5)
1., by the wide high method of laser automatic measuring amount object, it is characterized in that: specifically comprise following steps:
Step 1, adopts laser range sensor to measure testee with swinging, and obtains laser range sensor and effectively takes measurement of an angle relative to the maximum of testee in swing process;
Step 2, obtain the distance value of initial effective measurement that laser range sensor obtains when once swinging measurement and at the end of the distance value effectively measured;
Step 3, according to maximum two distance values obtained with step 2 that effectively take measurement of an angle that step 1 obtains, calculates the width of object under test according to triangle theorem;
Step 4, control laser range sensor with certain hour spacing to move up and down, proceed step 1 to step 3 simultaneously, object width corresponding when showing that laser range sensor moves up and down, choose the width as testee that width value is maximum, the distance analysis moved up and down by laser range sensor draws the height of object, is shown height and the width of object under test by display unit in real time simultaneously.
2. according to claim 1ly a kind ofly to be it is characterized in that: in step 1 by the wide high method of laser automatic measuring amount object, described maximum effectively taking measurement of an angle is less than 180 °.
3. according to claim 1ly a kind ofly to be it is characterized in that: in step 1 by the wide high method of laser automatic measuring amount object, described laser range sensor is LMS type double-pulse laser distance measuring sensor.
4. according to claim 1ly a kind ofly to be it is characterized in that: in step 1 by the wide high method of laser automatic measuring amount object, adopt angular transducer to obtain laser range sensor and effectively take measurement of an angle relative to the maximum of testee in swing process.
5. according to claim 1ly a kind ofly to be it is characterized in that: in step 4 by the wide high method of laser automatic measuring amount object, described display unit is LCD display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410684812.2A CN104567688A (en) | 2014-11-25 | 2014-11-25 | Method for automatically measuring width and height of object through laser |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410684812.2A CN104567688A (en) | 2014-11-25 | 2014-11-25 | Method for automatically measuring width and height of object through laser |
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| CN104567688A true CN104567688A (en) | 2015-04-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848790A (en) * | 2015-06-03 | 2015-08-19 | 王录民 | Hand-held grain amount quick-measuring instrument |
| CN106679575A (en) * | 2016-12-29 | 2017-05-17 | 重庆交通大学 | System and method for detecting overheight and overwidth of vehicle based on laser calibration |
| CN106767450A (en) * | 2016-12-28 | 2017-05-31 | 重庆交通大学 | A kind of vehicle super-high ultra-wide detecting system and method demarcated based on function |
| CN108895968A (en) * | 2018-05-15 | 2018-11-27 | 天津杰泰高科传感技术有限公司 | vehicle measuring device and method |
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| JP2009115541A (en) * | 2007-11-05 | 2009-05-28 | Sharp Corp | Distance measuring instrument and distance measuring method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848790A (en) * | 2015-06-03 | 2015-08-19 | 王录民 | Hand-held grain amount quick-measuring instrument |
| CN106767450A (en) * | 2016-12-28 | 2017-05-31 | 重庆交通大学 | A kind of vehicle super-high ultra-wide detecting system and method demarcated based on function |
| CN106679575A (en) * | 2016-12-29 | 2017-05-17 | 重庆交通大学 | System and method for detecting overheight and overwidth of vehicle based on laser calibration |
| CN106679575B (en) * | 2016-12-29 | 2018-07-03 | 重庆交通大学 | A kind of vehicle super-high ultra-wide detecting system and method based on laser calibration |
| CN108895968A (en) * | 2018-05-15 | 2018-11-27 | 天津杰泰高科传感技术有限公司 | vehicle measuring device and method |
| CN108895968B (en) * | 2018-05-15 | 2020-08-25 | 天津杰泰高科传感技术有限公司 | Vehicle measuring device and method |
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Application publication date: 20150429 |