CN203375932U - Visual detection positioning device - Google Patents
Visual detection positioning device Download PDFInfo
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- CN203375932U CN203375932U CN201320498658.0U CN201320498658U CN203375932U CN 203375932 U CN203375932 U CN 203375932U CN 201320498658 U CN201320498658 U CN 201320498658U CN 203375932 U CN203375932 U CN 203375932U
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- signal processor
- positioning device
- visual detection
- detection positioning
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Abstract
The utility model discloses a visual detection positioning device which comprises a digital signal processor, an encoder, a proximity switch, and a rejecting device, wherein the proximity switch is perpendicular to a surface of a transmission belt so as to detect a hole position of the surface of the transmission belt. The encoder is mounted on a drive rotation shaft of the transmission belt; the output terminal of the proximity switch is electrically connected with one input terminal of the digital signal processor; the output terminal of the encoder is electrically connected with the other input terminal of the digital signal processor; and one output terminal of the digital signal processor is electrically connected with a control signal input terminal of the rejecting device. The visual detection positioning device is used for employing the encoder to cooperate with the general proximity switch for the position compensation, and for using the digital signal processor to complete the precise positioning for the pulse detection, differential calculation and other work.
Description
Technical field
The utility model patent belongs to the vision detection technology field, relates to especially a kind of visual detection positioning device.
Background technology
Because vision-based detection often is applied to accurate the detection, vision-based detection is high to the positioning requirements of workpiece, and the accuracy requirement of the information acquisition position of thereupon bringing improves greatly.Traditional Photoelectric Detection mode is subject to many-sided restriction while on detection and production line, doing position probing: 1) two are detected between the positions, hole and can't locate; 2) chain transmission, with the shake in transmission process, position, hole flase drop is had a strong impact on, mechanical precision is had relatively high expectations; 3) programmable logic controller (Programmable Logic Controller, PLC) sense cycle is longer, in the photoelectric code disk run up detects, the PLC frequency detecting is had relatively high expectations, and causes the PLC cost higher.
For addressing the above problem, research reliably, at a high speed, accurate locating device is significant to vision-based detection.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of visual detection positioning device, adopts scrambler to coordinate general approach switch to carry out position compensation, utilizes digital signal processor to carry out the work such as pulse detection, Difference Calculation and completes accurate location.
For achieving the above object, the utility model provides following technical scheme:
A kind of visual detection positioning device, comprise digital signal processor, scrambler, perpendicular to the travelling belt surface, approach switch and the device for eliminating with the position, hole on detection travelling belt surface be set, described scrambler is arranged on the drive shaft of driving-belt, the output terminal of described approach switch is electrically connected to an input end of described digital signal processor, the output terminal of described scrambler is electrically connected to another input end of described digital signal processor, and an output terminal of described digital signal processor is electrically connected to the control signal input end of device for eliminating.
Further, described approach switch is photo-electric, electromagnetic type or Hall-type position-detection sensor.
Further, described device for eliminating comprises actuating mechanism and for the control circuit module of control action mechanism action.
Further, the start equipment that described actuating mechanism is air-operated solenoid valve, motor electromagnetic valve or hydraulic buttery valve.
Further, described scrambler is connected with described drive shaft by coupling shaft, between described coupling shaft and drive shaft, is provided with shaft coupling.
The beneficial effects of the utility model are:
1, be applicable in commercial production, the testing processes such as vision-based detection, workpiece accurately be located, carry out the position segmentation compensation between the adjacent holes position that utilizes the pulse of scrambler to detect approach switch, utilize digital signal processor to carry out the work such as pulse detection, Difference Calculation and complete accurate location;
2, solve two and detected the problem that can't locate between the position, hole;
3, by the pulsewidth queue of using scrambler, the yardage between approach switch adjacent holes position is carried out to digital filtering, efficiently solve the chain transmission, with the shake in transmission process to position, hole flase drop problem, reduced the requirement of system to mechanical precision, implementation is reliably feasible, greatly reduces the pinpoint cost of realizing.
The accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearer, the utility model provides following accompanying drawing to describe:
The schematic diagram that Fig. 1 is the utility model visual detection positioning device embodiment;
Fig. 2 is the structural representation of the conveying device of employing the present embodiment visual detection positioning device.
Fig. 3 is the syndeton schematic diagram between scrambler and drive shaft;
The location queue segmentation compensation sequence chart of the visual detection positioning device that Fig. 4 is the present embodiment.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
As shown in Figure 1, be the schematic diagram of the utility model visual detection positioning device embodiment.The visual detection positioning device of the present embodiment, comprise digital signal processor 1, scrambler 3, perpendicular to travelling belt 12 surfaces, approach switch 2 and the device for eliminating 4 with the position, hole on detection travelling belt 12 surfaces be set, scrambler 3 is arranged on the drive shaft 10 of driving-belt 12, the output terminal of approach switch 2 is electrically connected to an input end of digital signal processor 1, the output terminal of scrambler 3 is electrically connected to another input end of digital signal processor 1, and an output terminal of digital signal processor 1 is electrically connected to the control signal input end of device for eliminating 4.
In concrete application example, digital signal processor 1 comprises take controller that the flush bonding processors such as single-chip microcomputer, DSP, FPGA are core and industrial control computer etc.; Approach switch 2 comprises the position-detection sensor that adopts photo-electric, electromagnetic type or Hall-type, is provided with pulse capture counting module 5, pulsewidth queue module 6, differential position computing module 7, start queue module 8, location comparison module 9 and action output module 14 in the digital signal processor 1 of the present embodiment.The approach switch 2 of the present embodiment is the photoelectric type position detecting sensor.
Device for eliminating 4 comprises action machine 4a structure and the control circuit module 4b moved for the 4a of control action mechanism, and control circuit module 4b is connected with digital signal processor 1 and receives the control signal from digital signal processor 1.Actuating mechanism 4 can be the start equipment of air-operated solenoid valve, motor electromagnetic valve or hydraulic buttery valve.
As shown in Figure 3, scrambler 3 is connected with drive shaft 10 by coupling shaft 11, is provided with shaft coupling 13 between coupling shaft 11 and drive shaft.
The principle of work of the visual detection positioning device of the present embodiment is as follows:
Utilize digital signal processor 1 as core processor, by it, the pulse of inner 5 pairs of scramblers 3 of pulse capture counting module input is gathered, the collection electric pulse of approach switch 2 detected simultaneously, the recurrent interval of collection is saved as to pulsewidth queue module 6.Utilize the digital signal processing function of digital signal processor 1, differential position computing module 7 in digital signal processor 1 carries out digital filtering by the pulsewidth queue of scrambler 3, the filtering result obtains the location between approach switch 2 adjacent holes positions of pulse width and segments compensation, thus the positional information between the adjacent holes position that acquisition approach switch 2 detects.Start queue module 8 and the result of calculation 6 of differential position computing module 6 are compared, location comparison module 9 is converted into current location by the result of calculation by differential position computing module 6, the start type of action that show current location should do corresponding to start queue module 8.By start output module 14, according to the result of calculation of above-mentioned start type, export final start instruction to control the action of device for eliminating 4, thereby complete the location work of whole collection and start.In concrete application example, digital signal processor 1 provides electric signal when calculating the product arrival assigned address that needs rejecting, and to the control circuit module, 4b sends steering order, to the control circuit module 4b control action 4a of mechanism action, completes Weeding.
As shown in Figure 4, after digital signal processor 1 collects the output pulse of scrambler 3, form a pulse train; After the input pulse that approach switch 2 detected, sequence is worked as to prepulse and carry out zero clearing, after this pulse train is numbered, have the pulse train of a scrambler 3 between two pulses that approach switch 2 gathers, this sequence numbering scope should be stabilized in an interval; Larger for Serial Number Range, exceed should be stable interval this sequence is cut, numbering is far from reaching next approach switch 2 pulses of wait of stable region sequence is augmented.So, the pulse train numbering average 100 that the scrambler 3 of take gathers is example, between band position, two holes of transmission, by 100 deciles, in apply accurately vision-based detection requirement position, can realize accurate location.
Above embodiment, yardage between adjacent holes position approach switch 2 measured by the pulsewidth queue of using scrambler 3 is carried out digital filtering, efficiently solve the chain transmission, with the shake in transmission process to position, hole flase drop problem, reduced the requirement of system to mechanical precision, implementation is reliably feasible, greatly reduces the pinpoint cost of realizing.
Finally explanation is, above preferred embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can make various changes to it in the form and details, and not depart from the utility model claims limited range.
Claims (5)
1. a visual detection positioning device, it is characterized in that: comprise digital signal processor (1), scrambler (3), approach switch (2) and the device for eliminating (4) of the position, hole to survey the travelling belt surface are set perpendicular to travelling belt (12) surface, described scrambler (3) is arranged on the drive shaft (10) of driving-belt (12), the output terminal of described approach switch (2) is electrically connected to an input end of described digital signal processor (1), the output terminal of described scrambler (3) is electrically connected to another input end of described digital signal processor (1), one output terminal of described digital signal processor (1) is electrically connected to the control signal input end of device for eliminating (4).
2. visual detection positioning device according to claim 1, it is characterized in that: described approach switch (2) is photo-electric, electromagnetic type or Hall-type position-detection sensor.
3. visual detection positioning device according to claim 1 and 2 is characterized in that: described device for eliminating comprises actuating mechanism and for the control circuit module of control action mechanism action.
4. visual detection positioning device according to claim 3, it is characterized in that: described actuating mechanism (4) is the start equipment of air-operated solenoid valve, motor electromagnetic valve or hydraulic buttery valve.
5. visual detection positioning device according to claim 1 is characterized in that: described scrambler (3) is connected with described drive shaft (10) by coupling shaft (11), is provided with shaft coupling (13) between described coupling shaft (11) and drive shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320498658.0U CN203375932U (en) | 2013-08-15 | 2013-08-15 | Visual detection positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320498658.0U CN203375932U (en) | 2013-08-15 | 2013-08-15 | Visual detection positioning device |
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| Publication Number | Publication Date |
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| CN203375932U true CN203375932U (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320498658.0U Expired - Lifetime CN203375932U (en) | 2013-08-15 | 2013-08-15 | Visual detection positioning device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007685A (en) * | 2014-03-21 | 2014-08-27 | 宁波巨匠自动化装备有限公司 | High-speed precise-positioning acquisition trigger card circuit and acquisition method |
-
2013
- 2013-08-15 CN CN201320498658.0U patent/CN203375932U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007685A (en) * | 2014-03-21 | 2014-08-27 | 宁波巨匠自动化装备有限公司 | High-speed precise-positioning acquisition trigger card circuit and acquisition method |
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Legal Events
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| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160616 Address after: 314121 Industrial Zone, Xitang Town, Jiashan County, Jiaxing, Zhejiang Patentee after: JIASHAN TLD INDUSTRIAL & TRADING Co.,Ltd. Address before: 310012 Zhejiang city of Hangzhou province Xihu District GUCUI Road No. 80, Zhejiang science and technology industrial building fifteen room 1501 Patentee before: HANGZHOU LIPO SCIENCE & TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20140101 |
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| CX01 | Expiry of patent term |