CN207881652U - A kind of object edge feature detection device - Google Patents
A kind of object edge feature detection device Download PDFInfo
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- CN207881652U CN207881652U CN201820368291.3U CN201820368291U CN207881652U CN 207881652 U CN207881652 U CN 207881652U CN 201820368291 U CN201820368291 U CN 201820368291U CN 207881652 U CN207881652 U CN 207881652U
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Abstract
The utility model discloses a kind of object edge feature detection devices, are related to electronic technology field, which includes：Slave computer, Image Acquisition camera, network communication module, alarm module, memory module, lighting module, master controller and human-computer interaction module, slave computer is separately connected Image Acquisition camera, network communication module, alarm module, memory module and lighting module, slave computer is also established with master controller and is communicated to connect, and master controller connects human-computer interaction module；Image Acquisition camera is arranged with lighting module face, and object under test is arranged between Image Acquisition camera and lighting module；The device can precisely, high speed detection go out the edge feature of object under test, also have preferable stability for the object under test of thinner thickness, while can carry out data transmission with remote server, live real-time exhibition can also be carried out, usage scenario is compared with horn of plenty.
Description
Technical field
The utility model is related to electronic technology field, especially a kind of object edge feature detection device.
Background technology
Either in the production process of object or in detection identification process, edge feature detection is all more important
Link, such as in the detection process of the flaw of product edge during castings production, for another example on to serrated knife edge
In the detection identification process of tooth cutting edge of a knife or a sword on tooth cutting edge of a knife or a sword or plant leaf blade, it is directed to the detection of object edge feature, especially saw blade
In the actual production process of equal casting, manufacturing technique requirent usually requires the shape of sawtooth in predetermined range, then this
In the case of it is all higher to the detection speed of object edge feature and required precision.Current edge feature detection is typically to rely on people
What eye was completed, subjectivity and uncertainty are all higher, and detection speed and precision are also all poor, usually cannot be satisfied actual production
And detection demand.
Utility model content
The present inventor is regarding to the issue above and technical need, it is proposed that a kind of object edge feature detection device, the device
Can precisely, the edge feature for detecting object under test of height, particularly with being sawed in the spark plug and saw blade of thinner thickness
The detection of tooth is with good stability, can meet the requirement for detection speed and precision in actual production environment.
The technical solution of the utility model is as follows：
A kind of object edge feature detection device, the device include：Slave computer, Image Acquisition camera, network communication module,
Alarm module, memory module, lighting module, master controller and human-computer interaction module, Image Acquisition camera use telecentric lens, net
Network communication module is established network communication with server and is connect, memory module for storing data and external program, human-computer interaction mould
Block includes keyboard module and liquid crystal display；Slave computer be separately connected Image Acquisition camera, network communication module, alarm module,
Memory module and lighting module, slave computer are also established with master controller and are communicated to connect, and master controller connects human-computer interaction module；Figure
As acquisition camera and the setting of lighting module face, object under test is arranged between Image Acquisition camera and lighting module；Slave computer
Directional light irradiation object under test is sent out for controlling lighting module, slave computer is additionally operable to acquire determinand by Image Acquisition camera
The image of body, and the edge feature of object under test is determined based on machine vision technique according to the image of object under test, slave computer will
The edge feature of object under test is sent to master controller, and master controller is used for special by the edge of liquid crystal display measuring targets
Sign is shown, and slave computer, which is additionally operable to the edge feature of object under test is sent to server by network communication module, unites
Meter analysis.
Its further technical solution is that slave computer uses the processor of model TMS320VC5402, master controller to adopt
With the module of model RCM3100, slave computer is communicated with master controller by 8 HPI interfaces.
Its further technical solution is that memory module includes the first storage unit and the second storage unit, the first storage
For storing data, the second storage unit uses model to unit for storing external program, the first storage unit
The storage chip of IS64LV51216, the second storage unit use the storage chip of model SST39VF200A.
Its further technical solution is, alarm module includes monostable flipflop, buzzer and light emitting diode,
Positive triggering input terminal connection slave computer, the negative triggering input terminal of monostable flipflop are hanging, and the output end of monostable flipflop is logical
The base stage of resistance connecting triode, the anode of the emitter connection light emitting diode of triode are crossed, the cathode of light emitting diode connects
Ground, one end of the collector connection buzzer of triode, the other end of buzzer connect power end by pull-up resistor；Slave computer
For the triggering monostable flipflop driving buzzing when the edge feature for detecting object under test is not met with default edge feature
Device and light emitting diode send out alarm signal.
Its further technical solution is that device further includes watchdog module, and watchdog module connects slave computer, house dog
Module includes the hardware monitoring chip of model MAX1232, and watchdog module is for defeated to slave computer when an exception is detected
Go out reset signal, slave computer is reset according to reset signal.
The advantageous effects of the utility model are：
1, this application discloses a kind of object edge feature detection device, the Image Acquisition camera in the device and illumination mould
Block is correspondingly arranged, slave computer by the image of the collected object under test of Image Acquisition camera be based on machine vision technique precisely,
High speed detection goes out measured object edge contour, solves the problems, such as various caused by human eye detection.In addition, being respectively adopted
IS64LV51216 and SST39VF200A expands as data and external program, and slave computer can be facilitated to carry out a large amount of data meter
It calculates, to which the accuracy of detection of the device is increased to sub-pixel precision.The detection device can be widely applied to removable ring simultaneously
Border field, to a certain extent, not limited by regions, usage scenario is compared with horn of plenty.
2, the device uses light field collimated backlight lighting system, and there is no limit for the thickness of measuring targets, while can be convex
The edge contour information of aobvious object under test, makes the tooth cutting edge of a knife or a sword at edge become sharp keen, while can be to avoid traditional diffusing reflection thicker
Reflection shade is generated in tested object image, the detection particularly with sawtooth in the spark plug and saw blade of thinner thickness has well
Stability, fully meet in actual production environment accurately and rapidly requirement of real time,
3, the device can carry out data transmission with remote server, and point of data is carried out convenient for long-range server end
Analysis and statistics.
4, the device further includes liquid crystal display, which can show the edge feature of object under test and connect
The product related information of the related object under test of the server end feedback received, the real-time dimension of product is carried out convenient for Field Force
Shield.
Description of the drawings
Fig. 1 is the circuit structure diagram of object edge feature detection device disclosed in the present application.
Fig. 2 is the circuit interface figure of slave computer and master controller.
Fig. 3 is the setting schematic diagram of object under test.
Fig. 4 is the circuit diagram of alarm module.
Fig. 5 is the circuit diagram of watchdog module.
Specific implementation mode
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
This application discloses a kind of object edge feature detection device, which can be used for detecting the edge of object under test
Feature, object under test include the various objects such as plant leaf blade and serrated knife.The circuit structure diagram shown is please referred to Fig.1, the device
Including：Slave computer, Image Acquisition camera, network communication module, alarm module, memory module, lighting module, master controller and people
Machine interactive module, slave computer are separately connected Image Acquisition camera, network communication module, alarm module, memory module and illumination mould
Block, slave computer are also established with master controller and are communicated to connect, and master controller connects human-computer interaction module, and human-computer interaction module includes key
Disk module and liquid crystal display.It will be appreciated by persons skilled in the art that although applicant does not indicate, the device is practical
Further include that the power supply powered for modules unit and other necessary components, the application do not go to live in the household of one's in-laws on getting married to this when realization
It states.
Wherein, slave computer is using the stronger DSP of data-handling capacity (Digital Signal Processing, number letter
Number processing) chip realizes, use the chip model for the processor of TMS320VC5402 in the application.Master controller, which uses, to be had
The RCM3100 modules of keyboard module and liquid crystal display programmable interface, so as to connect keyboard module and liquid crystal display
It is convenient that the edge feature detected is controlled and shown.Slave computer passes through 8 HPI interfaces (HOST PORT with master controller
INTERFACE it) is communicated, interface diagram is as shown in Figure 2.The application by accuracy of detection due to being increased to sub-pix essence
Degree, therefore slave computer needs to carry out a large amount of data calculating, therefore the application carries out space expansion by memory module to slave computer
It fills, to improve speed and precision when whole device carries out edge feature detection.Optionally, memory module includes that the first storage is single
Member and the second storage unit, for storing data, the second storage unit is for storing external program, the application for the first storage unit
In the first storage unit use model IS64LV51216 SDRAM (Synchronous Dynamic Random Access
Memory, synchronous DRAM) storage chip progress data extending, the second storage unit is using model
Nand-flash (flash memory) storage chip of SST39VF200A carries out external program expansion.
Image Acquisition camera uses telecentric lens, Image Acquisition camera to be equipped with lighting module, and lighting module is used for
Measuring targets are illuminated, and Image Acquisition camera carries out Image Acquisition for measuring targets, and illumination is to influence Image Acquisition
An important factor for, because it directly affects the quality of image, the present apparatus uses light field collimated backlight lighting system structure, specifically
, the camera lens of Image Acquisition camera and lighting module face are arranged, object under test setting is in Image Acquisition camera and illumination mould
Between block, lighting module sends out directional light to object under test and Image Acquisition camera.This light field collimated backlight lighting system knot
Structure not only can generate reflection to avoid in Image Acquisition camera side, avoid after reflecting the shade of caused background parts, influence
Phase is divided, and traditional diffusing reflection can also be avoided to generate reflection shade, the parallel back of the body of the light field in the image of thicker object under test
There is no limit for the thickness of lighting system structure measuring targets, while can highlight the edge contour information of object under test, makes
Edge teeth's cutting edge of a knife or a sword becomes sharp keen.Lighting module can be a LED (Light Emitting Diode, light emitting diode) flat lamp
Group, the LED planar lamp group send out directional light；Alternatively, the lighting module may include point light source and convex lens, point light source setting exists
The focal point of convex lens, point light source send out directional light through convex lens, please refer to Fig.3 the schematic diagram shown.
Network communication module is embodied as the network card chip of a model DP8390, by slave computer in the network card chip
Each register is programmed control, it can be achieved that the network communication in LAN between long-range server is connect, to real
Existing data transmission.
Alarm module includes monostable flipflop, buzzer and light emitting diode, and monostable flipflop use can weigh
The monostable flipflop 74LS122 triggered again, the monostable flipflop include just triggering input terminal B1, B2, and negative triggering is defeated
Enter to hold A1, A2, the positive triggering input terminal B1 connections slave computer of the monostable flipflop, positive triggering input terminal B2 are hanging, and two negative
Triggering input terminal A1, A2 are grounded respectively, and the output end Q of the monostable flipflop passes through resistance R1Connecting triode Q1Base stage, three
Pole pipe Q1Emitter connection light emitting diode L anode, the cathode ground connection of light emitting diode L, triode Q1Collector connection
The other end of one end of buzzer BUZZER, buzzer BUZZER passes through pull-up resistor R2Connect power end VCC, the power end
VCC is provided by the power supply of the device.The circuit diagram shown is please referred to Fig.4, further includes that capacitance, resistance etc. are normal in alarm module
With circuit unit to ensure that the steady operation of the module, the application do not introduce this one by one.
The device further includes watchdog module, which is used to ensure that stablizing for whole device is transported using house dog mechanism
Row, please refers to the interface schema shown in Fig. 5, watchdog module includes the hardware monitoring chip of model MAX1232, house dog mould
Block connects slave computer, and the specially pin 6 of MAX1232 chips and pin 7 connects slave computer and fail when detecting program exception
When providing determining result, which generates reset signal (RESET) and exports to slave computer, and slave computer is according to weight
Confidence number reloads program.
The operation principle of the device is：
Object under test is arranged between Image Acquisition camera and lighting module, as shown in figure 3 above, slave computer control illumination
Module sends out directional light irradiation object under test, meanwhile, slave computer acquires object under test by Image Acquisition camera and is shone in directional light
Image under penetrating, slave computer determine the edge feature of object under test based on machine vision technique according to the image of object under test, by
In using back lighting, therefore the background of the image of collected object under test is white, foreground is black, need not carry out threshold
The contours extract of value, therefore the straightway and circular arc at Ramer algorithms extraction object under test edge are directly used, remove longer non-
Circular arc between saw blade edge line section and sawtooth obtains line segment and the direction on the front and back two sides of corresponding sawtooth, you can accurate
Detect the edge features such as the tooth cutting edge of a knife or a sword number, tooth cutting edge of a knife or a sword size and tooth sharp angle degree at object under test edge.It is also deposited in advance in slave computer
Default edge feature is contained, when the edge feature of the object under test detected is not met with default edge feature, in rising edge
The monostable flipflop persistently triggered in alarm module exports high level, and buzzer BUZZER and light emitting diode L are driven with this
It sends out alarm signal and realizes alarm.The edge feature of object under test can be sent to service by slave computer by network communication module
Device is for statistical analysis, meanwhile, slave computer can also receive the relevant information of the object under test of server feedback.Slave computer will
After the edge feature of object under test and the relevant information received are sent to master controller, master controller can pass through liquid crystal
The edge feature and relevant information for showing device measuring targets are shown, and real-time servicing is carried out convenient for Field Force.
Above-described is only the preferred embodiment of the application, and the utility model is not limited to above example.It can manage
Solution, those skilled in the art do not depart from the utility model spirit and design under the premise of directly export or associate other
It improves and changes, be considered as being included within the scope of protection of this utility model.
Claims (5)
1. a kind of object edge feature detection device, which is characterized in that described device includes：Slave computer, Image Acquisition camera, net
Network communication module, alarm module, memory module, lighting module, master controller and human-computer interaction module, described image acquire camera
Using telecentric lens, the network communication module is established network communication with server and is connect, and the memory module is for storing number
According to and external program, the human-computer interaction module include keyboard module and liquid crystal display；The slave computer is separately connected described
Image Acquisition camera, network communication module, alarm module, memory module and lighting module, the slave computer also with the master control
Device processed establishes communication connection, and the master controller connects the human-computer interaction module；Described image acquires camera and the illumination
Module face is arranged, and object under test setting is acquired in described image between camera and the lighting module；The slave computer is used for
It controls the lighting module and sends out the directional light irradiation object under test, the slave computer is additionally operable to acquire phase by described image
Machine acquires the image of the object under test, and is determined according to the image of the object under test based on machine vision technique described to be measured
The edge feature of the object under test is sent to the master controller, the master control by the edge feature of object, the slave computer
For being shown to the edge feature of the object under test by the liquid crystal display, the slave computer is additionally operable to lead to device processed
Crossing the network communication module, that the edge feature of the object under test is sent to the server is for statistical analysis.
2. the apparatus according to claim 1, which is characterized in that the slave computer uses the place of model TMS320VC5402
Device is managed, the master controller uses the module of model RCM3100, the slave computer to be connect by 8 HPI with the master controller
Mouth is communicated.
3. the apparatus according to claim 1, which is characterized in that the memory module is deposited including the first storage unit and second
Storage unit, for storing data, second storage unit is for storing external program for first storage unit, and described first
Storage unit uses the storage chip of model IS64LV51216, second storage unit to use model SST39VF200A
Storage chip.
4. the apparatus according to claim 1, which is characterized in that the alarm module includes monostable flipflop, buzzing
Device and light emitting diode, the positive triggering input terminal of the monostable flipflop connects the slave computer, negative triggering input terminal hangs
The output end of sky, the monostable flipflop passes through the base stage of resistance connecting triode, the emitter connection institute of the triode
The anode of light emitting diode, the cathode ground connection of the light emitting diode are stated, the collector of the triode connects the buzzer
One end, the other end of the buzzer connects power end by pull-up resistor；The slave computer is used to detect described wait for
The edge feature of survey object triggers the monostable flipflop when not met with default edge feature and drives the buzzer and institute
It states light emitting diode and sends out alarm signal.
5. the apparatus according to claim 1, which is characterized in that described device further includes watchdog module, the house dog
Module connects the slave computer, and the watchdog module includes the hardware monitoring chip of model MAX1232, the house dog
For exporting reset signal to the slave computer when an exception is detected, the slave computer carries out module according to the reset signal
Resetting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820368291.3U CN207881652U (en) | 2018-03-16 | 2018-03-16 | A kind of object edge feature detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820368291.3U CN207881652U (en) | 2018-03-16 | 2018-03-16 | A kind of object edge feature detection device |
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| CN207881652U true CN207881652U (en) | 2018-09-18 |
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| CN201820368291.3U Expired - Fee Related CN207881652U (en) | 2018-03-16 | 2018-03-16 | A kind of object edge feature detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085709A (en) * | 2019-05-05 | 2019-08-02 | 无锡职业技术学院 | A kind of LED image full-automatic counting statistical system |
| CN110672624A (en) * | 2019-10-22 | 2020-01-10 | 北京领邦智能装备股份公司 | Workpiece side imaging system, defect detection system and workpiece side imaging method |
-
2018
- 2018-03-16 CN CN201820368291.3U patent/CN207881652U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085709A (en) * | 2019-05-05 | 2019-08-02 | 无锡职业技术学院 | A kind of LED image full-automatic counting statistical system |
| CN110672624A (en) * | 2019-10-22 | 2020-01-10 | 北京领邦智能装备股份公司 | Workpiece side imaging system, defect detection system and workpiece side imaging method |
| CN110672624B (en) * | 2019-10-22 | 2022-03-15 | 北京领邦智能装备股份公司 | Workpiece side imaging system, defect detection system and workpiece side imaging method |
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Granted publication date: 20180918 |