CN103017657B - Dangerous target source size optical measurement method and device - Google Patents
Dangerous target source size optical measurement method and device Download PDFInfo
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- CN103017657B CN103017657B CN201210521497.2A CN201210521497A CN103017657B CN 103017657 B CN103017657 B CN 103017657B CN 201210521497 A CN201210521497 A CN 201210521497A CN 103017657 B CN103017657 B CN 103017657B
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- 238000003708 edge detection Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 18
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Abstract
The invention relates to and is applied to the non-contact size measurement field, particularly to a dangerous target source size optical measurement method and device. The dangerous target source size optical measurement method and device is provided to solve the problems of being dangerous or being not convenient to measure directly in the dangerous target source measurement in the prior art and has the advantages of being capable of achieving the remote and non-contact measurement of the dangerous target source, greatly reducing the danger of the dangerous source size measurement or being convenient to perform the indirect measurement of the dangerous target source, being capable of measuring the mobile dangerous target source, being high in measurement accuracy, being compact of the device and being capable of performing the field operation. L1, L2 and D are measured by the optical measurement device and the actual dangerous target source size is obtained after processing.
Description
Technical field
The present invention relates to noncontact dimension measurement field, especially a kind of for risk object Source size measuring method and device
.
Background technology
In fields such as industry, wild animal research, geologic prospecting, scientific researches, usually run into some dangerous matter sources, need to measure its yardstick, such as, measure the size of poisonous and harmful chemicals, or measure the information such as body length, height of certain dangerous animal in wild animal research.For the dimensional measurement of poisonous and harmful chemicals, the method usually adopted is that staff wears protective articles close-in measurement, although worn protective articles, but still there is certain danger; For dangerous animal, usually by close-in measurement after dangerous animal injecting anesthetic medicine, the little then still dangerous property of anesthesia amount, anesthesia amount may injure animal greatly, carrying out of influence research.Also need in other other field to use non-contact measurement, and the effective solution of neither one in prior art.
Summary of the invention
Technical matters to be solved by this invention is: in order to overcome in prior art for dangerous property in the measurement of risk object source or the inconvenient problem directly measured, a kind of risk object Source size measuring method and device are provided, this method and device can realize the remote non-contact measurement to risk object source, greatly reduce the danger of dangerous matter sources dimensional measurement or more conveniently carry out risk object source indirect inspection, also can measure for motion risk object source, and measuring accuracy is higher, device is compact, can operation in the wild.
The technical solution used in the present invention is as follows:
A kind of risk object Source size measuring method and device comprise
Step 1: form two laser faculas to surface, risk object source by launching two bundle parallel lasers, optical measuring device measures distance L1, the L2 of its end face to surface, risk object source, the spacing of the two bundle parallel lasers that described optical measuring device is launched is D, described two bundle parallel laser transmit directions are parallel with optical measuring device optical axis, then can draw the angle theta of risk object source and optical measuring device end face according to formula (1):
（１）
Step 2: risk object source data image signal and the laser facula signal being radiated at surface, risk object source are sent to processor by optical measuring device and carry out storage display;
Step 3: processor is by the distance d in the data image signal of the described collection of acquisition between two laser spot center points and measure data image signal risk object Source size s, calculates actual danger target source size S according to formula (2):
（2）
After processor stores display risk object source and is radiated at the laser facula data image signal on surface, risk object source in described step 2, squelch, image gradient, edge detection process are carried out to data image signal.
Also step 0 is comprised: trigger triggers optical measuring device work before described step 1.
Described optical measuring device comprises image collecting device, the first laser range finder, the second laser range finder, and described first laser range finder, the second laser range finder are connected with image collecting device respectively, and are positioned at image collecting device both sides; Distance between described first laser range finder and the second laser range finder optical axis is D; It is L1 that described first laser range finder records the first laser range finder end face to the distance on surface, risk object source; It is L2 that described second laser range finder records the second laser range finder end face to the distance on surface, risk object source; Described first laser range finder end face, the second laser range finder end face and image collecting device end face are positioned at same plane; Described first laser range finder, the second laser range finder Emission Lasers direction are parallel with image collecting device optical axis, optical measuring device optical axis refers to image collecting device optical axis, and described trigger triggers image collecting device in optical measuring device respectively, the first laser range finder, the second laser range finder work simultaneously.
Described image collecting device is ICCD video camera, the optical axis of what described image collecting device optical axis referred to is exactly ICCD video camera.
A kind of risk object Source size optical measuring device comprises
Optical measuring device, for measuring its distance relative to risk object source, and is sent to processor by the risk object source data image signal of acquisition and the representation of laser facula signal that is radiated at surface, risk object source and carries out data processing;
Trigger, for sending enable signal to optical measuring device, triggers optical measuring device work;
Processor, the picture signal exported for receiving optical measuring device is carried out image procossing according to described measuring method and is calculated risk object source physical size.
Described optical measuring device comprises image collecting device, the first laser range finder, the second laser range finder, and described first laser range finder, the second laser range finder are connected with image collecting device respectively, and are positioned at image collecting device both sides; Distance between described first laser range finder and the second laser range finder optical axis is D; It is L1 that described first laser range finder records the first laser range finder end face to the distance on surface, risk object source; It is L2 that described second laser range finder records the second laser range finder end face to the distance on surface, risk object source; Described first laser range finder end face, the second laser range finder end face and image collecting device end face are positioned at same plane; Described first laser range finder, the second laser range finder Emission Lasers direction are parallel with image collecting device optical axis, optical measuring device optical axis refers to image collecting device optical axis, and trigger triggers image collecting device in optical measuring device respectively, the first laser range finder, the second laser range finder work simultaneously.
Described image collecting device is ICCD video camera, the optical axis of what described image collecting device optical axis referred to is exactly ICCD video camera.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
A kind of risk object Source size measuring method and device are provided, this method and device can pass through the first laser range finder, the second laser range finder, image acquisition device signal realize remote non-contact measurement to risk object source through processor process, greatly reduce the danger of dangerous matter sources dimensional measurement or more conveniently carry out risk object source indirect inspection, also can measure for motion risk object source, and measuring accuracy is higher, device is compact, can operation in the wild.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is this measurement device schematic diagram.
Reference numeral 1-risk object source 2-processor 3-ICCD video camera
4-first laser range finder 5-second laser range finder 6-trigger.
Embodiment
All features disclosed in this instructions, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this instructions (comprising any accessory claim, summary and accompanying drawing), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
The design's related description
1, risk object source is given tacit consent in the design within the scope of image acquisition device field of view.
2, the average laser power of the first laser range finder, the second laser range finder can at mW to tens mW magnitudes.
3, in order to ensure measuring accuracy, the resolution of ICCD video camera should be not less than 1k × 1k.
Risk object source 1 data image signal and the representation of laser facula signal that is radiated at surface, risk object source are sent to processor by the ICCD video camera 4, in optical measuring device, the parameter value of distance L1, distance L2 sends to processor respectively by the first laser range finder, the second laser range finder, and distance D pre-deposits in processor as subsequent treatment is prepared.
5, image object size s, laser spot center distance d represent with pixel, wherein image object size s refers to certain boundary dimensions of the image through ICCD camera acquisition, if tiger size distance from the beginning to the end at a distance such as will be detected, then photographed all images of tiger by ICCD video camera, in the data image signal photographed, measure tiger distance from the beginning to the end then obtain image object size s.Laser spot center distance d refer to the first laser range finder, the second laser radiation instrument respectively Emission Lasers formed to risk object source two irradiate hot spots, then after the imaging of ICCD camera acquisition image, treated and calculate on image two distances of irradiating between spot center.
6, D/d represents the sampling rate of image collecting device.
7, the two spacing D restrainting parallel lasers that described optical measuring device is launched represent the identical meaning with the distance D between described first laser range finder and the second laser range finder optical axis.
8, processor control ICCD video camera is back to processor after acquisition image.
9, the first laser range finder end face refer to the first laser range finder near risk object source side to the surface of one end.
Embodiment one: a kind of risk object Source size measuring method comprises
Step 1: form two laser faculas to surface, risk object source by launching two bundle parallel lasers, optical measuring device measures distance L1, the L2 of its end face to surface, risk object source, the spacing of the two bundle parallel lasers that described optical measuring device is launched is D, described two bundle parallel laser transmit directions are parallel with optical measuring device optical axis, then can draw the angle theta of risk object source and optical measuring device end face according to formula (1):
（１）
Step 2: risk object source data image signal and the laser facula signal being radiated at surface, risk object source are sent to processor by optical measuring device and carry out storage display;
Step 3: processor is by the distance d in the data image signal of the described collection of acquisition between two laser spot center points and measure data image signal risk object Source size s, calculates actual danger target source size S according to formula (2):
（2）
Embodiment two: on embodiment one basis, after processor 2 stores display risk object source and is radiated at the laser facula data image signal on surface, risk object source in described step 2, squelch, image gradient, edge detection process are carried out to data image signal.
Embodiment three: on embodiment one or two basis, also comprises step 0 before described step 1: trigger triggers optical measuring device work.
Embodiment four: on embodiment one or three basis,
Described optical measuring device comprises image collecting device, the first laser range finder 4, second laser range finder 5, described first laser range finder 4, second laser range finder 5 is connected that (the first laser range finder, the second laser range finder and image collecting device are mechanically connected respectively with image collecting device, there is no Signal transmissions, just in order to ensure that the first laser range finder end face, the second laser range finder end face and image collecting device end face are at same plane.), and be positioned at image collecting device both sides; Distance between described first laser range finder 4 and the second laser range finder 5 optical axis is D; It is L1 that described first laser range finder 4 records the first laser range finder 4 end face to the distance on surface, risk object source 1; It is L2 that described second laser range finder 5 records the second laser range finder 5 end face to the distance on surface, risk object source 1; Described first laser range finder 4 end face, the second laser range finder 5 end face and image collecting device end face are positioned at same plane; Described first laser range finder 4, second laser range finder 5 Emission Lasers direction is parallel with image collecting device optical axis, optical measuring device optical axis refers to image collecting device optical axis, and described trigger triggers image collecting device in optical measuring device respectively, the first laser range finder, the second laser range finder work simultaneously.
Embodiment five: on embodiment four basis, described image collecting device is ICCD video camera 3.
Embodiment six: as shown in Fig. 1, on embodiment one basis, a kind of risk object Source size optical measuring device comprises optical measuring device, for measuring its distance relative to risk object source, and the risk object source data image signal of acquisition and the representation of laser facula signal that is radiated at surface, risk object source are sent to processor carry out data processing;
Trigger, for sending enable signal to optical measuring device, triggers optical measuring device work;
Processor, the picture signal exported for receiving optical measuring device is carried out image procossing according to described measuring method and is calculated risk object source physical size.
Embodiment seven: again on embodiment six basis, described optical measuring device comprises image collecting device, the first laser range finder, the second laser range finder, described first laser range finder, the second laser range finder are connected with image collecting device respectively, and are positioned at image collecting device both sides; Distance between described first laser range finder and the second laser range finder optical axis is D; It is L1 that described first laser range finder records the first laser range finder end face to the distance on surface, risk object source; It is L2 that described second laser range finder records the second laser range finder end face to the distance on surface, risk object source; Described first laser range finder end face, the second laser range finder end face and image collecting device end face are positioned at same plane; Described first laser range finder, the second laser range finder Emission Lasers direction are parallel with image collecting device optical axis, optical measuring device optical axis refers to image collecting device optical axis, and trigger triggers image collecting device in optical measuring device respectively, the first laser range finder, the second laser range finder work simultaneously.
Embodiment eight: on embodiment seven basis, described image collecting device is ICCD video camera.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (5)
1. a risk object Source size measuring method, is characterized in that comprising
Step 1: form two laser faculas to surface, risk object source by launching two bundle parallel lasers, optical measuring device measures distance L1, the L2 of its end face to surface, risk object source, the spacing of the two bundle parallel lasers that described optical measuring device is launched is D, described two bundle parallel laser transmit directions are parallel with optical measuring device optical axis, then can draw the angle theta of risk object source and optical measuring device end face according to formula (1):
（１）
Step 2: risk object source data image signal and the laser facula signal being radiated at surface, risk object source are sent to processor by optical measuring device and carry out storage display;
Step 3: processor is by the distance d in the data image signal of the described collection of acquisition between two laser spot center points and measure data image signal risk object Source size s, calculates actual danger target source size S according to formula (2):
（2）。
2. a kind of risk object Source size measuring method according to claim 1, after it is characterized in that in described step 2, processor stores display risk object source and is radiated at the laser facula data image signal on surface, risk object source, squelch, image gradient, edge detection process are carried out to data image signal.
3. a kind of risk object Source size measuring method according to claim 1, also comprises step 0 before it is characterized in that described step 1: trigger triggers optical measuring device work.
4. according to a kind of risk object Source size measuring method one of claims 1 to 3 Suo Shu, it is characterized in that described optical measuring device comprises image collecting device, the first laser range finder, the second laser range finder, described first laser range finder, the second laser range finder are connected with image collecting device respectively, and are positioned at image collecting device both sides; Distance between described first laser range finder and the second laser range finder optical axis is D; It is L1 that described first laser range finder records the first laser range finder end face to the distance on surface, risk object source; It is L2 that described second laser range finder records the second laser range finder end face to the distance on surface, risk object source; Described first laser range finder end face, the second laser range finder end face and image collecting device end face are positioned at same plane; Described first laser range finder, the second laser range finder Emission Lasers direction are parallel with image collecting device optical axis, optical measuring device optical axis refers to image collecting device optical axis, and described trigger triggers image collecting device in optical measuring device respectively, the first laser range finder, the second laser range finder work simultaneously.
5. a kind of risk object Source size measuring method according to claim 4, is characterized in that described image collecting device is ICCD video camera, the optical axis of what described image collecting device optical axis referred to is exactly ICCD video camera.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106168461B (en) * | 2016-01-18 | 2019-09-17 | 河南交通职业技术学院 | A kind of novel telemeasurement calibration instrument |
| CN107063174A (en) * | 2017-05-05 | 2017-08-18 | 杭州欧镭激光技术有限公司 | A kind of laser measuring device for measuring and its application process |
| CN112281208B (en) * | 2019-07-22 | 2022-04-05 | 隆基绿能科技股份有限公司 | A kind of liquid port distance determination method, device and single crystal furnace |
| CN111325793A (en) * | 2020-02-18 | 2020-06-23 | 江苏科技大学 | System and method for dynamically calibrating pixel size based on light spot in image measurement |
| CN112461133A (en) * | 2020-11-25 | 2021-03-09 | 深圳市施罗德工业集团有限公司 | Dimension measuring and calculating method and device, image detection device and readable storage medium |
| CN113814104B (en) * | 2021-07-30 | 2023-03-31 | 中材科技（邯郸）风电叶片有限公司 | Automatic roller coating equipment and roller coating control method for wind power blade |
| CN114063613A (en) * | 2021-10-25 | 2022-02-18 | 浙江小族智能科技有限公司 | Amusement vehicle and its control method, device, storage medium and terminal |
| CN114719762A (en) * | 2022-06-08 | 2022-07-08 | 煤炭科学技术研究院有限公司 | Method and device for detecting plane junction surface gap of explosion-proof equipment |
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| CN101793508A (en) * | 2010-03-23 | 2010-08-04 | 长春理工大学 | Device for measuring parallelism of transmission shaft and receiving shaft of laser distance measuring equipment based on focal plane scanning |
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| CN102305591A (en) * | 2011-08-17 | 2012-01-04 | 哈尔滨工业大学 | Multi-frequency synchronization phase laser ranging device and method based on dual-acousto-optic shift frequency |
| CN202974191U (en) * | 2012-12-07 | 2013-06-05 | 中国工程物理研究院流体物理研究所 | Dangerous-object source measuring apparatus |
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| US7542135B2 (en) * | 2007-06-06 | 2009-06-02 | Northrop Grumman Corporation | Device for inspecting countersunk holes |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793508A (en) * | 2010-03-23 | 2010-08-04 | 长春理工大学 | Device for measuring parallelism of transmission shaft and receiving shaft of laser distance measuring equipment based on focal plane scanning |
| CN101979960A (en) * | 2010-09-29 | 2011-02-23 | 南京信息工程大学 | A Leaf Area Measuring Device Based on Laser and Image |
| CN102305591A (en) * | 2011-08-17 | 2012-01-04 | 哈尔滨工业大学 | Multi-frequency synchronization phase laser ranging device and method based on dual-acousto-optic shift frequency |
| CN202974191U (en) * | 2012-12-07 | 2013-06-05 | 中国工程物理研究院流体物理研究所 | Dangerous-object source measuring apparatus |
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