CN200958942Y

CN200958942Y - Bank note pachometer

Info

Publication number: CN200958942Y
Application number: CN 200620093634
Authority: CN
Inventors: 柳长庆; 赵同光; 于盛忠
Original assignee: Individual
Current assignee: Julong Co Ltd
Priority date: 2006-10-13
Filing date: 2006-10-13
Publication date: 2007-10-10
Anticipated expiration: 2016-10-13

Abstract

The utility model discloses a paper money thickness inspecting device which comprises a single chip, an ultrasonic survey device and an execution device. The picking head of the ultrasonic survey device is connected with the signal input end of the central processing unit through an amplitude limit device and an amplifier. The digital quantity output end of the central processing unit is connected with the sending head of the ultrasonic signal survey device through a power oscillator; the digit output end of the central processing unit which is internally provided with a paper money thickness survey procedure is connected with the execution device. The utility model has the advantages of rapid survey, high degree of precision and can realize intelligentization of paper money thickness survey so as to improve work efficiency and survey precision.

Description

A kind of bank note measuring thickness device

Technical field

The utility model relates to a kind of paper currency sorting equipment, specifically a kind of ultrasound wave that utilizes: according to the different bank note measuring thickness devices that detect paste of the thickness of bank note diverse location.

Background technology

In daily life and business activity, because bank note is impaired easily in the field of circulation, people often paste the back with impaired bank note with book paper slip or adhesive tape and continue to use.In addition, because the appearance of adulterium coin (counterfeit money a kind of, this counterfeit money often is to connect perhaps overlapping stickup with adhesive tape), so financial department needs these bank note are detected in the bank note management.Past is to carry out go-on-go by mechanical measuring thickness device, and broken bank note and counterfeit money that branch is detected reclaim.This mechanical measuring thickness device is to utilize two running rollers that are oppositely arranged in the mode of contact bank note to be carried out thickness measuring, react the thickness of bank note by the mechanical distance of two running rollers, because mechanical measuring thickness device complex structure, and must contact just energy measurement with bank note, owing to paste very book, have only about 0.1mm again, use the mechanical means thickness measuring as adhesive tape thickness, be difficult to guarantee the accuracy of measurement, thereby have poor reliability, loss height and the low problem of precision.

The utility model content

For overcoming above-mentioned deficiency, the purpose of this utility model is to provide a kind of bank note measuring thickness device that can measure banknote thickness in the noncontact mode quickly and accurately.

For achieving the above object, the technical solution adopted in the utility model is:

The utlity model has single-chip microcomputer, ultrasonic detection device and actuating unit, reception head in the ultrasonic detection device is connected to the signal input part of the central processing unit of single-chip microcomputer through amplitude limiter and amplifier, the digital quantity output terminal of central processing unit links to each other with emitting head in the ultrasonic signal pick-up unit through power oscillator, the digital output end of central processing unit is connected to actuating unit, and there is bank note thickness measuring control program this central processing unit inside.

Emitting head in the described ultrasonic signal pick-up unit and reception head are many groups; Described actuating unit is a paper currency sorter.

The utlity model has following beneficial effect and advantage:

1. measuring speed is fast, and the accuracy height can be realized the intellectuality of bank note thickness measuring.Because the utility model has adopted the principle of ultrasonic thickness test, in the noncontact mode bank note is measured, even adhesive tape as thin as a wafer also can detect exactly, thereby has improved measuring accuracy;

2. high efficiency.The utility model is changed traditional mechanical thickness measuring mode, utilize single-chip microcomputer that detection signal is discerned, and control executing mechanism detects bank note, can dynamically detect the bank note that has paste, every bank note has only 0.03 second through the time of ultrasonic detection device, has improved work efficiency.

Description of drawings

Fig. 1 is the utility model measuring process synoptic diagram;

Fig. 2 is the utility model electrical schematic diagram.

Embodiment

As shown in Figure 1 and Figure 2, the utlity model has single-chip microcomputer and ultrasonic detection device, emitting head in the present embodiment in the ultrasonic detection device and reception head adopt 16 groups, be respectively the 1st～16 emitting head ULT1～ULT16 and the 1st～16 and receive a ULT17～ULT32, parallel being oppositely arranged in the position of the horizontal process of bank note, every group of received head is corresponding with emitting head, and distance is 1～8mm (present embodiment all adopts 5mm), and bank note passes through between reception head and emitting head; The output signal that receives head is delivered to the signal input part MER of the central processing unit U7 of single-chip microcomputer after amplitude limiter (present embodiment adopts the slicer of being made up of diode D1, D2) and amplifier U5A, the amplification of U5B two-stage, digital quantity output terminal P0.6, the P0.7 of central processing unit U7 link to each other with all emitting heads through power oscillator, present embodiment adopts two drivers, and each driver is a ultrasonic signal more than the 40KHz for 8 emitting heads provide frequency simultaneously; Digital output end P1.4, P1.6, the P1.7 of central processing unit U7 also are connected to actuating unit, and the actuating unit of present embodiment is for driving the rotary magnet of fork action; There is control program this central processing unit U7 inside.

The course of work of the present utility model is:

After the utility model powers on, digital quantity output terminal P0.6 by the central processing unit U7 of single-chip microcomputer, P0.7 controls two power oscillators respectively, simultaneously the ultrasonic signal of certain energy is delivered to the 1st～16 emitting head ULT1～ULT16, when bank note at emitting head and receive between the head through out-of-date, hyperacoustic amplitude and phase place can change, energy has decay, the thickness difference of bank note, then Shuai Jian degree is also different, the 1st～16 receives a ULT17～ULT32 with the signal circulation output under the selection control of traffic pilot at central processing unit U7 that receives, pass through amplitude limit more respectively, after amplifying, secondary delivers to the analog signals input end P0.2 of central processing unit U7, be stored in control program among the central processing unit U7 according to this simulating signal analysis, whether judge this banknote thickness unusual, thereby identify the bank note that has paste, and by the digital output end P1.4 of central processing unit U7, P1.6, P1.7 sends pulse signal and gives rotary magnet, drives fork by this rotary magnet this detected bank note that has paste is launched.

The utility model penetrates the thickness that amplitude behind the bank note and phase-changing signal are measured bank note by detecting ultrasound wave, at bank note fast through out-of-date, detect paste such as thin as a wafer paper slip, adhesive tape by the noncontact mode with very fast response speed, improved the accuracy of measuring speed and measurement effectively.

The utility model can be used as an independent device and uses, and also can be installed in the various paper currency sorters.

Claims

1. bank note measuring thickness device, it is characterized in that: have single-chip microcomputer, ultrasonic detection device and actuating unit, reception head in the ultrasonic detection device is through amplitude limiter and amplifier (U5A, U5B) be connected to the signal input part (P0.2) of the central processing unit (U7) of single-chip microcomputer, digital quantity output terminal (the P0.6 of central processing unit (U7), P0.7) link to each other with emitting head in the ultrasonic signal pick-up unit through power oscillator, digital output end (the P1.4 of central processing unit (U7), P1.6, P1.7) be connected to actuating unit, there is bank note thickness measuring control program this central processing unit (U7) inside.

2. by the described bank note measuring thickness device of claim 1, it is characterized in that: emitting head in the described ultrasonic signal pick-up unit and reception head are many groups.

3. by the described bank note measuring thickness device of claim 1, it is characterized in that: described actuating unit is a paper currency sorter.