CN109579753A - A kind of effective on-line detecting system - Google Patents
A kind of effective on-line detecting system Download PDFInfo
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- CN109579753A CN109579753A CN201811526311.6A CN201811526311A CN109579753A CN 109579753 A CN109579753 A CN 109579753A CN 201811526311 A CN201811526311 A CN 201811526311A CN 109579753 A CN109579753 A CN 109579753A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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Abstract
A kind of effective on-line detecting system, including data acquisition module, detect route planning module, detect control module and detection alarm module, the data acquisition module is used to obtain the location information of workpiece surface test point to be detected, the detection route planning module is used to carry out detection route planning according to the location information of the test point of acquisition, the detection control module detects workpiece surface to be detected along the detection route planned for controlling detection contact, the detection alarm module is used to carry out early warning when detecting that workpiece surface to be detected is undesirable.The invention has the following beneficial effects: carrying out global detection route planning using test point of the improved ant group algorithm to workpiece surface to be detected, obtain shortest detection route, detection of obstacles is carried out in the global detection route planned, part detection route planning is carried out to test point according to testing result, to effectively avoid barrier in the detection process, effective on-line checking is realized.
Description
Technical field
The invention is related to processing detection field, and in particular to a kind of effective on-line detecting system.
Background technique
With the continuous development of the new and high technologies such as information technology, computer technology, modern electronic technology, especially technology collection
Universal and application, the machining center online measuring technique of technology grow up therewith.Machining center online measuring technique is to improve
One of Cutter Body Processing with Machining Center precision and the key technology of the degree of automation are area of computer aided matter in computer integrated manufacturing system
Measure the key technology of monitoring.
For above-mentioned status, the present invention provides a kind of effective on-line detecting system, is treated using improved ant group algorithm
The test point for detecting workpiece surface carries out global detection route planning, shortest detection route has been obtained, in the overall situation planned
Detection of obstacles is carried out in detection route, part detection route planning is carried out to test point according to testing result, thus detecting
Barrier is effectively avoided in the process, realizes effective on-line checking.
Summary of the invention
In view of the above-mentioned problems, the present invention is intended to provide a kind of effective on-line detecting system.
The purpose of the invention is achieved through the following technical solutions:
A kind of effective on-line detecting system, including data acquisition module, detection route planning module, detection control module
With detection alarm module, the data acquisition module is used to obtain the location information of workpiece surface test point to be detected, the inspection
Route planning module is surveyed to be used to carry out detection route planning, the detection control module according to the location information of the test point of acquisition
Workpiece surface to be detected is detected along the detection route planned for controlling detection contact, the detection alarm module
For carrying out early warning when detecting that workpiece surface to be detected is undesirable.
The invention the utility model has the advantages that being carried out using improved ant group algorithm to the test point of workpiece surface to be detected complete
Office's detection route planning, has obtained shortest detection route, has carried out detection of obstacles, root in the global detection route planned
Part detection route planning is carried out to test point according to testing result, so that barrier is effectively avoided in the detection process, it is real
Effective on-line checking is showed.
Detailed description of the invention
Innovation and creation are described further using attached drawing, but the embodiment in attached drawing does not constitute and appoints to the invention
What is limited, for those of ordinary skill in the art, without creative efforts, can also be according to the following drawings
Obtain other attached drawings.
Fig. 1 is schematic structural view of the invention；
Fig. 2 is present invention detection route planning modular structure schematic diagram.
Appended drawing reference:
Data acquisition module 1；Detect route planning module 2；Detect control module 3；Detect alarm module 4；Global detection
Planning unit 21；Detection of obstacles unit 22；Local inspection planning unit 23.
Specific embodiment
The invention will be further described with the following Examples.
Referring to Fig. 1, a kind of effective on-line detecting system of the present embodiment, including data acquisition module 1, detection route rule
Module 2, detection control module 3 and detection alarm module 4 are drawn, the data acquisition module 1 is for obtaining workpiece surface to be detected
The location information of test point, the detection route planning module 2 are used to be detected according to the location information of the test point of acquisition
Route planning, the detection control module 3 is for controlling detection contact along the detection route planned to workpiece table to be detected
Face is detected, and the detection alarm module 4 is used to carry out early warning when detecting that workpiece surface to be detected is undesirable.
Preferably, the location information includes the three-dimensional coordinate and Vector Message of measuring point to be checked.
Preferably, the detection route planning module 2 includes global detection planning unit 21,22 and of detection of obstacles unit
Local inspection planning unit 23, the global detection planning unit 21 are used to be carried out according to the location information of the test point of acquisition complete
Office's detection route planning, the detection of obstacles unit 22 are used to carry out barrier inspection to the global detection route planned,
The part inspection planning unit 23 is for carrying out part detection route planning according to the inspection result of barrier.
Preferably, the global detection planning unit 21 carries out global detection route planning using ant group algorithm, in ant colony
In algorithm, the initial information element in path is allocated, if the initial information element in path is τ between test point i and test point jij
(0), then τij(0) expression formula are as follows:
In formula, C is pheromones constant, lijIndicate the path length between test point i and test point j, NumiIndicate ant
In test point i selectable test point quantity in next step,Indicate the path length of test point i and selectable test point composition
Mean value, NumjIndicate ant selectable test point quantity of next step at test point j,Indicate test point j and selectable
The mean value of all path lengths of test point composition, δ is weight coefficient, and 0 < δ < 1.
For this preferred embodiment when initial information element distributes, shorter, subsequent path of adjusting the distance selects more path allocation
More initial information element, so that the advantage of the pheromone concentration in preferable path is just obviously got up at the beginning, increases
The chance that preferable path is selected, to avoid algorithm while increasing convergence speed of the algorithm and easily fall into local optimum
The defect of solution.
Preferably, the global detection planning unit 21 carries out global detection route planning using ant group algorithm, in ant colony
In algorithm, ant k determines its next step according to the remaining pheromone concentration on paths each in environment during looking for food
The direction of search, to be moved from test point i to test point j in t moment ant k, if being moved from test point i to test point j general
Rate are as follows:
In formula,Indicate that ant k selects the probability of test point j in test point i,Indicate ant k at test point i
Selectable detection point set, τij(t) pheromone concentration between t moment test point i and test point j on path, η are indicatedij
(t) local heuristic function is indicated, α and β respectively indicate τij(t) and ηij(t) influence degree to the probability entirely moved.
Preferably, in the ant group algorithm, a kind of new local heuristic function η is proposedij(t) calculation, specifically
Are as follows:
In formula,Indicate the mean value of all path lengths of test point j and selectable test point composition, lojIt indicates from
Path length of the initial point o to test point j, lijIndicate path length between test point i and test point j.
This preferred embodiment proposes a kind of new local heuristic function in probability selection function, has comprehensively considered detection
Point between path length and starting point to the path length between test point so that between test point path length it is shorter and
The shorter path of distance has biggish probability to be selected between starting point to test point, in addition, appropriate increase longer-range
From the probability that path is selected, so that algorithm is not easy to fall into locally optimal solution.
Preferably, the global detection planning unit 21 carries out global detection route planning using ant group algorithm, in ant
After completing one cycle, as the path length l between starting point o and target point gogIt is greater than(wherein,For institute in this circulation
Have the mean value of path length) when, then Pheromone update is not carried out to the paths, and when the road between starting point o and target point g
Electrical path length logIt is less than or equal toWhen, then Pheromone update is carried out to the paths, as the following formula to each cross-talk path of the paths
Pheromones be updated, specifically:
In formula, τij(t) pheromone concentration between t moment test point i and test point j on path, τ are indicatedij(t+1)
Indicate that the pheromone concentration between (t+1) moment test point i and test point j on path, ρ indicate pheromones residual factor,Indicate that ant k is remaining in the pheromone concentration between test point i and test point j on path, Q expression letter in this circulation
Cease the constant of plain intensity, lijIndicate the path length between test point i and test point j, NumjUnder indicating ant at the test point j
The selectable test point quantity of one step, NumiIndicate ant selectable test point quantity of next step at test point i.
This preferred embodiment only allow obtain relatively major path part ant carry out Pheromone update so that part compared with
The information content of major path increases, and accelerates convergence speed of the algorithm；In addition, drawing during the Pheromone update of every section of road
Having entered ant, selectable detection points are as Dynamic gene in next step in current detection point, when next step has more may be selected
When test point, that is, increase the pheromone amount of current path, to increase the diversity of understanding, avoids in the convergence for accelerating algorithm
While speed, caused by algorithm be easy precocious defect.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (6)
1. a kind of effective on-line detecting system, characterized in that including data acquisition module, detection route planning module, detection
Control module and detection alarm module, the data acquisition module are used to obtain the position letter of workpiece surface test point to be detected
Breath, the detection route planning module are used to carry out detection route planning, the inspection according to the location information of the test point of acquisition
It surveys control module to detect workpiece surface to be detected along the detection route planned for controlling detection contact, the inspection
Alarm module is surveyed to be used to carry out early warning when detecting that workpiece surface to be detected is undesirable.
2. a kind of effective on-line detecting system according to claim 1, characterized in that the location information includes to be checked
The three-dimensional coordinate and Vector Message of measuring point.
3. a kind of effective on-line detecting system according to claim 2, characterized in that the detection route planning module
It is used including global detection planning unit, detection of obstacles unit and local inspection planning unit, the global detection planning unit
Global detection route planning is carried out in the location information of the test point according to acquisition, the detection of obstacles unit is used for planning
Good global detection route carries out barrier inspection, the part inspection planning unit be used for according to the inspection result of barrier into
The detection route planning of row part.
4. a kind of effective on-line detecting system according to claim 3, characterized in that the global detection planning unit
Global detection route is planned using ant group algorithm, in ant group algorithm, the initial information element in path is allocated, if
The initial information element in path is τ between test point i and test point jij(0), then τij(0) expression formula are as follows:
In formula, C is pheromones constant, lijIndicate the path length between test point i and test point j, NumiIndicate that ant is being examined
The selectable test point quantity of measuring point i next step,Indicate the equal of the path length of test point i and selectable test point composition
Value, NumjIndicate ant selectable test point quantity of next step at test point j,Indicate test point j and selectable detection
The mean value of all path lengths of point composition, δ is weight coefficient, and 0 < δ < 1.
5. a kind of effective on-line detecting system according to claim 4, characterized in that the global detection planning unit
Global detection route is planned using ant group algorithm, in ant group algorithm, ant k is during looking for food, according in environment
Remaining pheromone concentration on each paths determines the direction of search of its next step, t moment ant k will be from test point i
It is moved to test point j, if the probability moved from test point i to test point j are as follows:
In formula,Indicate that ant k selects the probability of test point j in test point i,Indicate that ant k is optional at test point i
The detection point set selected, τij(t) pheromone concentration between t moment test point i and test point j on path, η are indicatedij(t)
Indicate local heuristic function, α and β respectively indicate τij(t) and ηij(t) influence degree to the probability entirely moved.
6. a kind of effective on-line detecting system according to claim 5, characterized in that in the ant group algorithm, mention
A kind of new local heuristic function η outij(t) calculation, specifically:
In formula,Indicate the mean value of the path length of test point i and selectable test point composition, lojIt indicates from starting point o to inspection
Path length between measuring point j, lijIndicate path length between test point i and test point j.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113447022A (en) * | 2020-03-24 | 2021-09-28 | 百德机械股份有限公司 | Path planning method and system for workpiece detection |
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