CN104422387A - Double-line laser measuring system and method - Google Patents
Double-line laser measuring system and method Download PDFInfo
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- CN104422387A CN104422387A CN201310369717.9A CN201310369717A CN104422387A CN 104422387 A CN104422387 A CN 104422387A CN 201310369717 A CN201310369717 A CN 201310369717A CN 104422387 A CN104422387 A CN 104422387A
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Abstract
The invention relates to a double-line laser measuring system and method, and is applied to measuring equipment which is equipped with a first laser sensor and a second laser sensor. When the measuring equipment only opens one of the laser sensors, the double-line laser measuring system establishes a single coordinate system for a valid scanning area of the laser sensor, performs coordinate fitting on measurement data collected by each laser sensor, and calculates a measurement result of an object to be measured based on a coordinate fitting relation. By implementation of the double-line laser measuring system provided by the invention, data fitting can be performed on the measurement data collected by each laser sensor according to the number and installation methods of the laser sensors, thereby improving the degree of accuracy of measurement of the object to be measured.
Description
Technical field
The present invention relates to a kind of measurement system and method, particularly about a kind of dual laser measurement system and method.
Background technology
In measurement equipment, one or more sensor is generally all installed and carries out dimension measurement for measuring targets, comprise the length of object under test, width, thickness, angle etc.For the measurement equipment using multiple sensor to measure, the data fitting that each sensor must be gathered just can be carried out measurement and be calculated under the same coordinate system, obtains the measurement of object under test.But different measurement equipments is according to the quantity of its sensor and mounting means, and the also difference of sensor image data coordinate, the method for therefore different pieces of information being carried out matching is also not quite similar, thus causes the final measurement of measuring targets to there is deviation.
Summary of the invention
In view of above content, be necessary to provide a kind of dual laser measurement system and method, a coordinate system can be set up respectively for each laser sensor be arranged in measurement equipment, the metric data gathered by each laser sensor carries out data fitting, and measures object under test based on coordinate fitting relation.
Described a kind of dual laser measurement system runs in measurement equipment, and this measurement equipment is provided with the first laser sensor and the second laser sensor.This dual laser measurement system comprises: initialization module, for the second effective scanning region in the first effective scanning region and the second laser sensor that obtain the first laser sensor, and decision content measurement equipment opens one of them or two laser sensor measuring targets measure; Establishment of coordinate system module, for when measurement equipment opens the first laser sensor and the second laser sensor simultaneously, be that the first coordinate system is set up in the first effective scanning region, be that the second coordinate system is set up in the second effective scanning region, using the first coordinate system as reference coordinate system, and rotation of coordinate parameter and the coordinate translation parameter of the second coordinate system are set; Coordinate fitting module, for the measurement data under the second coordinate system being carried out rotation of coordinate centered by the initial point of the second coordinate system according to rotation of coordinate parameter, and the measurement data under the second coordinate system is carried out coordinate translation to set up the coordinate fitting relation of the measurement data under the first coordinate system and the measurement data under the second coordinate system according to coordinate translation parameter; Measurement module, for utilize the metric data of the metric data of the first laser sensor collection and the second laser sensor collection to carry out according to the coordinate fitting relation set up measurement that coordinate measure calculates to produce object under test.
Described dual laser method for measurement is applied in measurement equipment, and this measurement equipment is provided with the first laser sensor and the second laser sensor.The method comprising the steps of: obtain the first effective scanning region of the first laser sensor and the second effective scanning region of the second laser sensor; Decision content measurement equipment be open one of them or two laser sensor measuring targets measure; When measurement equipment opens the first laser sensor and the second laser sensor simultaneously, be that the first coordinate system is set up in the first effective scanning region, and be that the second coordinate system is set up in the second effective scanning region; Using the first coordinate system as reference coordinate system, and rotation of coordinate parameter and the coordinate translation parameter of the second coordinate system are set; According to rotation of coordinate parameter, the measurement data under the second coordinate system is carried out rotation of coordinate centered by the initial point of the second coordinate system; Measurement data under second coordinate system is carried out coordinate translation to set up the coordinate fitting relation of the measurement data under the first coordinate system and the measurement data under the second coordinate system according to coordinate translation parameter; According to the coordinate fitting relation set up utilize the metric data of the metric data of the first laser sensor collection and the second laser sensor collection to carry out measurement that coordinate measure calculates to produce object under test.
Compared to prior art, dual laser measurement system of the present invention and method, when measurement equipment only opens one of them laser sensor, a single coordinate system is set up in effective scanning region for one of them laser sensor, and measures based on measuring targets under this single coordinate system.When measurement equipment opens multiple laser sensor simultaneously, then for a coordinate system set up respectively by each laser sensor be arranged in measurement equipment, the metric data gathered by each laser sensor carries out coordinate fitting, and calculates the measurement of object under test based on coordinate fitting relation.
Accompanying drawing explanation
Fig. 1 is the running environment schematic diagram of dual laser measurement system of the present invention preferred embodiment.
Fig. 2 is the process flow diagram of dual laser method for measurement of the present invention preferred embodiment.
Fig. 3 is for the schematic diagram of single coordinate system set up by single laser sensor.
Fig. 4 is the schematic diagram metric data of dual laser sensor collection being carried out data fitting.
Main element symbol description
Measurement equipment 1
Dual laser measurement system 10
Initialization module 101
Establishment of coordinate system module 102
Coordinate fitting module 103
Measurement module 104
First laser sensor 11
Second laser sensor 12
Memory device 13
Microprocessor 14
Object under test 2
Embodiment
Consulting shown in Fig. 1, is the running environment schematic diagram of dual laser measurement system 10 of the present invention preferred embodiment.In the present embodiment, described dual laser measurement system 10 is installed and is run in measurement equipment 1, and this measurement equipment 1 also include but not limited to, the first laser sensor 11, second laser sensor 12, memory device 13 and microprocessor 14.This dual laser measurement system 10 carries out data interaction by system bus and described first laser sensor 11, second laser sensor 12, memory device 13 and microprocessor 14.In the present embodiment, first laser sensor 11 and the second laser sensor 12 correlation (that is forward opposite) are arranged in measurement equipment 1, the laser that first laser sensor 11 and the second laser sensor 12 send separately can correlation in the pros and cons of object under test 2, front-back or face, left and right, thus intactly collect the metric data of object under test 2.
In the present embodiment, whether described dual laser measurement system 10 the first laser sensor 11 in decision content measurement equipment 1 and the second laser sensor 12 can be opened simultaneously measures object under test 2.As shown in Figure 3, if measurement equipment 1 opens one of them sensor (such as the first laser sensor 11), this dual laser measurement system 10 is that a single coordinate system XZ is set up in the effective scanning region of one of them sensor, and measures based on measuring targets 2 under this single coordinate system XZ.As shown in Figure 4, if measurement equipment 1 opens two sensors (such as the first laser sensor 11 and the second laser sensor 12) simultaneously, this dual laser measurement system 10 is arranged on the first laser sensor 11 in measurement equipment 1 for correlation and a coordinate system (such as the first coordinate system XZ and the second coordinate system X ' Z ') set up respectively by the second laser sensor 12, the metric data that first laser sensor 11 and the second laser sensor 12 gather is carried out coordinate fitting, and calculates the measurement of object under test 2 based on coordinate fitting relation.
In the present embodiment, described dual laser measurement system 10 comprises initialization module 101, establishment of coordinate system module 102, coordinate fitting module 103 and measurement module 104.Functional module alleged by the present invention refers to that a kind of microprocessor 14 that can be measured equipment 1 is performed and can complete the sequence of program instructions section of fixed function, and it is stored in the memory device 13 of measurement equipment 1.To be described specifically in the flowchart of fig. 2 about each functional module 101-104.
Consulting shown in Fig. 2, is the process flow diagram of dual laser method for measurement of the present invention preferred embodiment.In the present embodiment, described dual laser method for measurement is applied in measurement equipment 1, a coordinate system set up respectively by each laser sensor (such as the first laser sensor 11 and the second laser sensor 12) that can be arranged in measurement equipment 1 for correlation, the metric data gathered by each laser sensor carries out coordinate fitting, and based on coordinate fitting relation, the metric data gathered separately is carried out the measurement that coordinate measure calculates object under test 2.
Step S20, initialization module 101 initialization correlation is arranged on the first laser sensor 11 and the second laser sensor 12 on measurement equipment 1.When the first laser sensor 11 and second laser sensor 12 of use amount measurement equipment 1, initialization module 101 needs to carry out initialization of calibration for the sensitivity centre of the first laser sensor 11 and the second laser sensor 12.
Step S21, initialization module 101 obtains the first effective scanning region of the first laser sensor 11 and the second effective scanning region of the second laser sensor 12.Shown in figure 4, trapezoidal figure A above represents the first effective scanning region of the first laser sensor 11, and trapezoidal figure B below represents the second effective scanning region of the second laser sensor 12.
Step S22, initialization module 101 decision content measurement equipment 1 be open one of them or two laser sensor measuring targets 2 measure.If measurement equipment 1 is opened one of them laser sensor (the first laser sensor 11 as shown in Figure 3) measuring targets 2 and measured, then perform step S23 to S24; If measurement equipment 1 is opened two laser sensors (the first laser sensor 11 and the second laser sensor 12 as shown in Figure 4) measuring targets 2 and measured simultaneously, then perform step S25 to S29.
Step S23, establishment of coordinate system module 102 sets up a single coordinate system for one of them effective scanning region.Step S24, measurement module 104 utilizes one of them laser sensor measuring targets 2 to carry out measuring the measurement obtaining object under test 2 under this single coordinate system.As shown in Figure 3, establishment of coordinate system module 102 is that single coordinate system XZ is set up in the first effective scanning region of the first laser sensor 11, and now measurement equipment 1 only carries out in measurement based on measuring targets 2 under this single coordinate system XZ with the first laser sensor 11.Wherein, coordinate axis X represents the horizontal vector of parallel first laser sensor 11, and coordinate axis Z represents the vertical vector of vertical first laser sensor 11.
Step S25, establishment of coordinate system module 102 is that the first coordinate system is set up in the first effective scanning region, and is that the second coordinate system is set up in the second effective scanning region.As shown in Figure 4, when measurement equipment 1 uses the first laser sensor 11 and the second laser sensor 12 measuring targets 2 to carry out when measuring simultaneously, establishment of coordinate system module 102 is that the first effective scanning region A sets up the first coordinate system XZ, and is that the second effective scanning region B sets up the second coordinate system X ' Z '.
Step S26, the first coordinate system as with reference to coordinate system, and is arranged rotation of coordinate parameter and the coordinate translation parameter of the second coordinate system by establishment of coordinate system module 102.In the present embodiment, rotating vector required when described rotation of coordinate parameter is rotation the second coordinate system, it can be expressed as (± X ', ± Z ').Translation vector required when described coordinate translation parameter is translation the second coordinate system, it can be expressed as (a, b).
Step S27, the measurement data under the second coordinate system is carried out rotation of coordinate according to rotation of coordinate parameter by coordinate fitting module 103 centered by the initial point of the second coordinate system.As shown in Figure 4, when the measurement data of the second laser sensor 12 is expressed as (X ', Z ') under the second coordinate system, then, after rotation of coordinate being carried out to this measurement data (X ', Z '), be (-X ' ,-Z ').
Step S28, the measurement data under the second coordinate system is carried out coordinate translation to set up the coordinate fitting relation of the measurement data under the first coordinate system and the measurement data under the second coordinate system by coordinate fitting module 103 according to coordinate translation parameter.As shown in Figure 4, after the measurement data under the second coordinate system carries out rotation of coordinate (-X ' ,-Z '), then add and this postrotational measurement data carried out coordinate translation and obtain (-X '+a ,-Z '+b), coordinate fitting relation X=-X '+a can be obtained, Z=-Z '+b.This coordinate fitting relation has been reacted the metric data that the first laser sensor 11 and the second laser sensor 12 obtain and has all been used same coordinate system (such as the first coordinate system XZ) to represent, thus makes measurement equipment 1 complete the matching demand of dual laser metric data.
Step S29, the metric data that measurement module 104 utilizes the metric data of the first laser sensor 11 collection and the second laser sensor 12 to gather according to the coordinate fitting relation set up carries out the measurement that coordinate measure calculates to produce object under test 2.
Above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to above preferred embodiment to invention has been detailed description, those of ordinary skill in the art should be appreciated that and can modify to technical scheme of the present invention or be equal to the spirit and scope of replacing and should not depart from technical solution of the present invention.
Claims (10)
1. a dual laser measurement system, runs in measurement equipment, and this measurement equipment is provided with the first laser sensor and the second laser sensor, it is characterized in that, described dual laser measurement system comprises:
Initialization module, for the second effective scanning region in the first effective scanning region and the second laser sensor that obtain the first laser sensor, and decision content measurement equipment opens one of them or two laser sensor measuring targets measure;
Establishment of coordinate system module, for when measurement equipment opens the first laser sensor and the second laser sensor simultaneously, be that the first coordinate system is set up in the first effective scanning region, be that the second coordinate system is set up in the second effective scanning region, using the first coordinate system as reference coordinate system, and rotation of coordinate parameter and the coordinate translation parameter of the second coordinate system are set;
Coordinate fitting module, for the measurement data under the second coordinate system being carried out rotation of coordinate centered by the initial point of the second coordinate system according to rotation of coordinate parameter, and the measurement data under the second coordinate system is carried out coordinate translation to set up the coordinate fitting relation of the measurement data under the first coordinate system and the measurement data under the second coordinate system according to coordinate translation parameter;
Measurement module, for utilize the metric data of the metric data of the first laser sensor collection and the second laser sensor collection to carry out according to the coordinate fitting relation set up measurement that coordinate measure calculates to produce object under test.
2. dual laser measurement system as claimed in claim 1, is characterized in that, when measurement equipment opens one of them laser sensor, described establishment of coordinate system module is also for for setting up a single coordinate system in one of them effective scanning region.
3. dual laser measurement system as claimed in claim 2, it is characterized in that, when measurement equipment opens one of them laser sensor, described measurement module is also for based on utilizing one of them laser sensor measuring targets to carry out measuring the measurement obtaining object under test under described single coordinate system.
4. dual laser measurement system as claimed in claim 1, it is characterized in that, the first described laser sensor and the second laser sensor correlation are arranged in described measurement equipment.
5. dual laser measurement system as claimed in claim 1, it is characterized in that, the laser-correlation that the first described laser sensor and the second laser sensor send separately gathers the metric data of object under test respectively on the pros and cons of object under test, front-back or face, left and right.
6. a dual laser method for measurement, is applied in measurement equipment, and this measurement equipment is provided with the first laser sensor and the second laser sensor, and it is characterized in that, the method comprising the steps of:
Obtain the first effective scanning region of the first laser sensor and the second effective scanning region of the second laser sensor;
Decision content measurement equipment be open one of them or two laser sensor measuring targets measure;
When measurement equipment opens the first laser sensor and the second laser sensor simultaneously, be that the first coordinate system is set up in the first effective scanning region, and be that the second coordinate system is set up in the second effective scanning region;
Using the first coordinate system as reference coordinate system, and rotation of coordinate parameter and the coordinate translation parameter of the second coordinate system are set;
According to rotation of coordinate parameter, the measurement data under the second coordinate system is carried out rotation of coordinate centered by the initial point of the second coordinate system;
Measurement data under second coordinate system is carried out coordinate translation to set up the coordinate fitting relation of the measurement data under the first coordinate system and the measurement data under the second coordinate system according to coordinate translation parameter;
According to the coordinate fitting relation set up utilize the metric data of the metric data of the first laser sensor collection and the second laser sensor collection to carry out measurement that coordinate measure calculates to produce object under test.
7. dual laser method for measurement as claimed in claim 6, it is characterized in that, the method also comprises step: when measurement equipment opens one of them laser sensor, for a single coordinate system is set up in one of them effective scanning region.
8. dual laser method for measurement as claimed in claim 7, it is characterized in that, the method also comprises step: when measurement equipment opens one of them laser sensor, carries out measuring the measurement obtaining object under test based on utilizing one of them laser sensor measuring targets under described single coordinate system.
9. dual laser method for measurement as claimed in claim 6, it is characterized in that, the first described laser sensor and the second laser sensor correlation are arranged in described measurement equipment.
10. dual laser method for measurement as claimed in claim 6, it is characterized in that, the laser-correlation that the first described laser sensor and the second laser sensor send separately gathers the metric data of object under test respectively on the pros and cons of object under test, front-back or face, left and right.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310369717.9A CN104422387A (en) | 2013-08-22 | 2013-08-22 | Double-line laser measuring system and method |
| TW102131008A TW201514440A (en) | 2013-08-22 | 2013-08-29 | System and method for measuring objects using two lasers |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310369717.9A CN104422387A (en) | 2013-08-22 | 2013-08-22 | Double-line laser measuring system and method |
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| CN104422387A true CN104422387A (en) | 2015-03-18 |
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| CN201310369717.9A Pending CN104422387A (en) | 2013-08-22 | 2013-08-22 | Double-line laser measuring system and method |
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| TW (1) | TW201514440A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110192074A (en) * | 2016-12-12 | 2019-08-30 | 安赛乐米塔尔公司 | For measuring the method and apparatus for being intended to accommodate the abrasion of the refractory liner of container of molten metal |
| CN111504184A (en) * | 2020-04-22 | 2020-08-07 | 荆亮 | Calibration method and calibration system for double-line laser measurement |
-
2013
- 2013-08-22 CN CN201310369717.9A patent/CN104422387A/en active Pending
- 2013-08-29 TW TW102131008A patent/TW201514440A/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110192074A (en) * | 2016-12-12 | 2019-08-30 | 安赛乐米塔尔公司 | For measuring the method and apparatus for being intended to accommodate the abrasion of the refractory liner of container of molten metal |
| US11268766B2 (en) | 2016-12-12 | 2022-03-08 | Arcelormittal | Process and device for measuring wear of a refractory lining of a receptacle intended to contain molten metal |
| CN111504184A (en) * | 2020-04-22 | 2020-08-07 | 荆亮 | Calibration method and calibration system for double-line laser measurement |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201514440A (en) | 2015-04-16 |
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