CN205880992U

CN205880992U - Coin identification system based on machine vision

Info

Publication number: CN205880992U
Application number: CN201620727804.6U
Authority: CN
Inventors: 乔雪; 王呛
Original assignee: NINGXIA CHENGYANG DIGITAL TECHNOLOGY Co Ltd
Current assignee: NINGXIA CHENGYANG DIGITAL TECHNOLOGY Co Ltd
Priority date: 2016-07-12
Filing date: 2016-07-12
Publication date: 2017-01-11
Anticipated expiration: 2026-07-12

Abstract

The utility model discloses a coin identification system based on machine vision, including electromagnetic signal detecting element, machine vision system unit, signal trigger unit, motion control system unit, PCI bus interface and PC, electromagnetic signal detecting element includes current vortex sensor and connected data collection card, and CCD camera and connected image acquisition card, signal trigger unit include photoelectricity signal modules and connected IO card, and the motion control system unit includes drive module, solenoid valve and the actuating mechanism who connects gradually, and data collection card, image acquisition card, IO card all are connected with PCI detecting element 2, and the IO card still is connected with drive module. The utility model discloses can realize discerning the coin high -speed, accurately, dynamic, especially the machine vision system unit its have powerful image recognition performance, effectively solved the not enough of prior art.

Description

A kind of coin recognizing method system based on machine vision

Technical field

This utility model relates to image identification technical field, particularly relates to a kind of coin recognizing method system based on machine vision System.

Background technology

Along with progress and the development of society, commerce and service sectors more and more uses coin-feed machine, people Coin-feed machine is provided on subway, public transport and the automatic vending machine that flow is bigger, not only greatly improves work efficiency, simultaneously Also the great convenience brought.Popularizing however as coin-feed machine, also brings opportunity to lawless person, leads Cause counterfeit money phenomenon to be on the rise, thus the Coin truth identification to coin-feed machine has required more and more higher.Existing coin is known It is several that other device generally includes mechanical type, piezoelectric type, condenser type, but mechanical type Coin identifying apparatus has, and volume is big, structure The feature complicated, cost performance is the highest, but and the different counterfeit money of the identical material of None-identified geometry, piezoelectric type coin is known Other device recognition speed is relatively slow, and the parameter of electronic component exists discreteness, needs to finely tune in use, and variations in temperature is to piezoelectricity The impact of formula Coin identifying apparatus is relatively big, and recognition efficiency is the highest, and condenser type Coin identifying apparatus is also due to the parameter of electronic component There is discreteness, and ambient temperature, humidity etc. are the biggest on the impact of condenser type Coin identifying apparatus, thus the most less make With.

Utility model content

Because the drawbacks described above of prior art, technical problem to be solved in the utility model is to provide a kind of based on machine The coin recognizing method system of device vision, to solve the deficiencies in the prior art.

For achieving the above object, this utility model provides a kind of coin recognizing method system based on machine vision, its feature It is: include electromagnetic signal detector unit, Vision Builder for Automated Inspection unit, signal trigger element and kinetic control system unit, institute State electromagnetic signal detector unit, Vision Builder for Automated Inspection unit, signal trigger element to be connected with PC by pci bus interface；Institute State electromagnetic signal detector unit and include current vortex sensor and connected data collecting card, described CCD camera and with it even The image pick-up card connect, described signal trigger element includes photosignal module and connected IO card, described motor control System unit includes driving module, electromagnetic valve and the actuator being sequentially connected with, described data collecting card, image pick-up card, IO Card is all connected with pci bus interface, and described IO card is also connected with driving module.

Above-mentioned a kind of based on machine vision coin recognizing method system, it is characterised in that: described electromagnetic signal detector unit Also include that Detecting of coin channel design, described Detecting of coin channel design include coin passage and be arranged on coin passage start bit The photocell put, the coil being fixed on both sides, coin road, and it is opened in the counterfeit money mouth of coin passage bottom, genuine note mouth, institute successively State and at counterfeit money mouth, be additionally provided with the bridge being connected with electric magnet.

Above-mentioned a kind of based on machine vision coin recognizing method system, it is characterised in that: described actuator is cylinder.

Above-mentioned a kind of based on machine vision coin recognizing method system, it is characterised in that: described data collecting card is PCI6010 data collecting card.

Above-mentioned a kind of based on machine vision coin recognizing method system, it is characterised in that: described image pick-up card is PCI1428 vision collecting card.

Above-mentioned a kind of based on machine vision coin recognizing method system, it is characterised in that: described CCD camera coordinates light source to enter Row data acquisition.

The beneficial effects of the utility model are:

This utility model is by electromagnetic signal detector unit, Vision Builder for Automated Inspection unit, signal trigger element and motion control The cooperation of system unit processed, can realize to coin high-speed, accurately, dynamically identify, especially Vision Builder for Automated Inspection unit It has powerful image recognition performance, can realize the degree of depth to coin, careful, identify accurately, efficiently solve existing skill The deficiency of art.

Below with reference to accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is made furtherly Bright, to be fully understood from the purpose of this utility model, feature and effect.

Accompanying drawing explanation

Fig. 1 is overall structure block diagram of the present utility model.

Fig. 2 is Detecting of coin channel design schematic diagram of the present utility model.

Fig. 3 is the structural representation of air cylinder of kinetic control system unit of the present utility model.

Detailed description of the invention

As it is shown in figure 1, a kind of coin recognizing method system based on machine vision, it is characterised in that: include that electromagnetic signal detects Unit 1, Vision Builder for Automated Inspection unit 2, signal trigger element 3 and kinetic control system unit 4, described electromagnetic signal detector unit 1, Vision Builder for Automated Inspection unit 2, signal trigger element 3 are connected with PC 6 by pci bus interface 5；Described electromagnetic signal detects Unit 1 includes current vortex sensor 11 and connected data collecting card 12, described CCD camera 21 and connected image Capture card 22, described signal trigger element 3 includes photosignal module 31 and connected IO card 32, described motor control system System unit 4 includes driving module 31, electromagnetic valve 32 and the actuator 33 being sequentially connected with, and described data collecting card 12, image are adopted Truck 22, IO card 32 are all connected with pci bus interface 5, and described IO card 32 is also connected with driving module 31.

In the present embodiment, described electromagnetic signal detector unit 1 also includes Detecting of coin channel design, and described Detecting of coin leads to Road structure includes coin passage and is arranged on the photocell 13 of coin passage original position, is fixed on the coil 14 of both sides, coin road, And it is opened in the counterfeit money mouth 16 of coin passage bottom, genuine note mouth 17 successively, it is additionally provided with and electric magnet at described counterfeit money mouth 16 The bridge 15 connected.

As in figure 2 it is shown, be wound with the tank shape ferrite of coil, as knowing coin coil, being fixed on both sides, coin road, coin is from line Through out-of-date between circle, causing coil impedance to change, the size of variable quantity is by coin-size, thickness, the concentrated expression of material.Photoelectricity Pipe is as the beginning flag of detection coin, and electric magnet provides different passage for genuine note and counterfeit money, during genuine note, and electric magnet action, Thering is provided bridge for coin, coin enters genuine note mouth, i.e. enters the vision-based detection of next stage.During counterfeit money, electric magnet is failure to actuate, directly Enter counterfeit money mouth.

In the present embodiment, described actuator 33 is cylinder.As it is shown on figure 3, owing to the thickness of coin is only 1.3- 2.4mm, can sort cylinder coin and change into sorting with valve.Its communication is directly carried out with PC by I/O plate, when coin warp When crossing conveyer belt to the photosignal module induction range of signal trigger element, photosignal module will be opened, thus electric Magnet valve accepts switching signal by I/O board, controls cylinder turnover gas and sorts coin.

In the present embodiment, described data collecting card 12 is PCI6010 data collecting card.

In the present embodiment, described image pick-up card 22 is PCI1428 vision collecting card.

In the present embodiment, described CCD camera 21 coordinates light source to carry out data acquisition.

Operation principle of the present utility model is:

Electromagnetic signal detector unit plays the effect of assisting in identifying, and does preliminary counterfeit money sorting, can remove those and genuine note Coin that material is different or other metal class coins, may be contained in that genuine note pattern-information is identical among these but material is different Coin, makees to ensure for next step image recognition；Vision Builder for Automated Inspection unit is core cell, including image acquisition, image procossing, Feature extraction and image recognition；Kinetic control system unit is after coin is identified, and Coin sorting is held by actuator to regulation In device；Signal trigger element is as the induction system of system, and when there being coin to pass through camera fields of view close to cylinder, it at once will letter Number send PC to by I/O board, thus according to this signal, PC can judge whether camera takes pictures, judge that cylinder is simultaneously No action.

Preferred embodiment of the present utility model described in detail above.Should be appreciated that the ordinary skill people of this area Member just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technology neck In territory, technical staff passes through logical analysis, reasoning or limited reality on the basis of existing technology according to design of the present utility model Test available technical scheme, all should be in the protection domain being defined in the patent claims.

Claims

1. a coin recognizing method system based on machine vision, it is characterised in that: include electromagnetic signal detector unit (1), machine Visual system unit (2), signal trigger element (3) and kinetic control system unit (4), described electromagnetic signal detector unit (1), Vision Builder for Automated Inspection unit (2), signal trigger element (3) are connected with PC (6) by pci bus interface (5)；Described electromagnetism is believed Number detector unit (1) includes current vortex sensor (11) and connected data collecting card (12), described CCD camera (21) and Connected image pick-up card (22), described signal trigger element (3) includes photosignal module (31) and connected IO card (32), described kinetic control system unit (4) includes driving module (31), electromagnetic valve (32) and the machine of execution being sequentially connected with Structure (33), described data collecting card (12), image pick-up card (22), IO card (32) are all connected with pci bus interface (5), described IO card (32) is also connected with driving module (31).

A kind of coin recognizing method system based on machine vision, it is characterised in that: described electromagnetic signal Detector unit (1) also includes that Detecting of coin channel design, described Detecting of coin channel design include coin passage and be arranged on hard The photocell (13) of coin passage original position, it is fixed on the coil (14) of both sides, coin road, and is opened in successively under coin passage The counterfeit money mouth (16) in portion, genuine note mouth (17), described counterfeit money mouth (16) place is additionally provided with the bridge (15) being connected with electric magnet.

A kind of coin recognizing method system based on machine vision, it is characterised in that: described actuator (33) it is cylinder.

A kind of coin recognizing method system based on machine vision, it is characterised in that: described data acquisition Card (12) is PCI6010 data collecting card.

A kind of coin recognizing method system based on machine vision, it is characterised in that: described image acquisition Card (22) is PCI1428 vision collecting card.

A kind of coin recognizing method system based on machine vision, it is characterised in that: described CCD camera (21) light source is coordinated to carry out data acquisition.