CN204317744U - A kind of electronic coin penny bank - Google Patents
A kind of electronic coin penny bank Download PDFInfo
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- CN204317744U CN204317744U CN201420788571.1U CN201420788571U CN204317744U CN 204317744 U CN204317744 U CN 204317744U CN 201420788571 U CN201420788571 U CN 201420788571U CN 204317744 U CN204317744 U CN 204317744U
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- 230000005693 optoelectronics Effects 0.000 claims abstract description 49
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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Abstract
The utility model provides a kind of electronic coin penny bank, the diameter of optoelectronic switch to different coin is utilized to detect, thus to dropping into wherein 1 yuan, 5 jiaos, the coin of 1 edged surface value carries out identifying and can demonstrate the electronic coin penny bank of total amount, comprises Detecting of coin module, power module, governor circuit module, display module.Detecting of coin module comprises detection raceway groove and the first optoelectronic switch, the second optoelectronic switch, the 3rd optoelectronic switch, the 4th optoelectronic switch.Power module is powered to Detecting of coin module, governor circuit module and display module, Detecting of coin module detects the coin dropped into wherein, and the detection signal input governor circuit module that will produce, governor circuit module processes detection signal and processing result information is transferred to display module.
Description
Technical field
The utility model relates to a kind of electronic coin penny bank, is that one utilizes optoelectronic switch to identify coin, and can shows the electronic coin penny bank of coin total amount.
Background technology
Coin system due to China has compared with other countries that material difference is large, Currency Type is many, version is many and the feature such as the casting parameter differences of the coin of the same race of each version is large, causes no small difficulty to coin recognizing method.At present, the coin value that China mainly circulates is 1 yuan, 5 jiaos, three kinds of face amounts such as 1 jiao.
The coin value method of identification adopted both at home and abroad at present has image method, current vortex sensor method etc.
Image method is the feature for different coin image, using the not bending moment of coin image for feature is as input, applies the identification of various coin denominations of BP neural fusion.But for the coin that can normally circulate, recognition effect is better, when coin face is stained be difficult to resolution to naked eyes time, image method is just difficult to be competent at.
Current vortex sensor method is that current vortex sensor utilizes eddy current effect to carry out work, the multiple physical quantity that body surface is metallic conductor can be measured non-contactly, have that structure is simple, frequency response range is wide (from zero to hundreds of kilohertz), highly sensitive measure linear scope large (300 μm one 1000 μm), small volume, not by the feature such as impact of the media such as greasy dirt.Current vortex sensor method comprises frequency detecting method, amplitude detection method, phase-detection method.
Frequency detecting method utilizes the parameter such as material, thickness of two-way current vortex sensor to coin to detect, and improves the recognition detection rate of coin.Simultaneously, for eliminating the different impact on frequency measurement of coin initial velocity, adopt least square fitting algorithm, getting coin by the characteristic frequency corresponding to average time in coin road is standard value, coin was compared with average time by the time between coin road detection zone, and the characteristic frequency recorded is converted into coin with average time by the characteristic frequency value between detection zone according to least square fitting straight line, and this value is compared with characteristic frequency standard value, thus differentiate the true and false of coin.
From the introduction to low frequency transmission-type electromagnetic sensor principle, can learn, when putting into tested metallic plate in two coils, current vortex is created in metallic plate, due to the backwardness of current vortex phase place, the induced potential of induction coil and the phase difference of driving voltage is finally caused to change, and for the conductor of different materials, the change difference to some extent of phase place.Therefore, the discriminating to coin can also be realized by the phase difference detecting induced voltage and driving voltage.The phase information of driving voltage and induced voltage must being gathered in this way, in order to obtain the data signal being beneficial to controller process, also having to pass through analog-to-digital conversion.Higher to the requirement of data sampling, in order to reach higher precision, also there is very high requirement to analog-to-digital conversion.Therefore, realize the Coin identifying apparatus of high-accuracy in this way, required cost is larger.
Utility model content
The utility model provides a kind of discrimination high, the electronic coin penny bank that cost is low, can identify the coin of input wherein 1 yuan, 5 jiaos, 1 edged surface value and show the total amount inserted coin.For solving the problem, the utility model provides a kind of diameter of optoelectronic switch to different coin that utilize and detects, thus to the electronic coin penny bank that coin currency value identifies.
The electronic coin penny bank that the utility model provides, comprise Detecting of coin module, power module, governor circuit module, display module, Detecting of coin module comprises detection raceway groove and the first optoelectronic switch, the second optoelectronic switch, the 3rd optoelectronic switch, the 4th optoelectronic switch.Power module is powered to Detecting of coin module, governor circuit module and display module, Detecting of coin module detects the coin dropped into wherein, and the detection signal input governor circuit module that will produce, governor circuit module processes detection signal and processing result information is transferred to display module.
Preferably, detecting raceway groove inner width is 5mm.
Preferably, the first optoelectronic switch, the second optoelectronic switch, the 3rd optoelectronic switch, the 4th optoelectronic switch are infrared emission count detection sensor.Export high level when the long 25mm of infrared emission count detection sensor, wide 25mm, high 16mm, signal export acquiescence low level, light beam is blocked, groove width is 15mm, comprises LM393 chip, the infrared head of correlation.The height of the first optoelectronic switch, the second optoelectronic switch, the 3rd optoelectronic switch, the 4th optoelectronic switch distance detection Channel Trench is followed successively by 15mm, 16 mm, 18mm, 21mm.
Preferably, control circuit module comprises STC89C52 single-chip microcomputer, also comprises 74LS04 NOT gate chip, and the high level signal that sensor is inputted main control module 3 by 74LS04 NOT gate chip is converted into low level.
Preferably, display module adopts 1602 character mode lcds.
The utility model simple structure, and the parts that each functional module adopts are matured product stable and reliable for performance, therefore discrimination is high, and cost is lower.
Accompanying drawing explanation
Fig. 1 is system principle diagram
Fig. 2 is the front view of Detecting of coin module;
Fig. 3 is the top view of Detecting of coin module;
Fig. 4 is infrared emission Fundamentals of Sensors figure;
Fig. 5 is circuit system schematic diagram;
Fig. 6 is main program flow for displaying figure;
Fig. 7 is INTO service routine flow chart;
Fig. 8 interrupts flow chart.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
Power module 2 is powered to Detecting of coin module 1, governor circuit module 3 and display module 4 as shown in Figure 1, Detecting of coin module 1 detects the coin dropped into wherein, and the detection signal input governor circuit module 3 that will produce, governor circuit module 3 pairs of detection signals process and processing result information are transferred to display module 4.
As shown in Figure 2, the first optoelectronic switch 11, second optoelectronic switch 12, the 3rd optoelectronic switch 13, the 4th optoelectronic switch 14 are infrared emission count detection sensor.During use, for easy to operate, Detecting of coin module 1 is angled with horizontal plane, and coin is pressed direction shown in figure and dropped into.First optoelectronic switch 11 is used for detecting the presence or absence of coin, during due to the coin of different denominations will be made by detecting, sensor all has high level output, and 1 jiao, 5 jiaos, the diameter of 1 yuan of coin is respectively 19mm, 20.5mm, 25mm, thus the height of this optoelectronic switch distance groove must be less than the diameter (15mm) of minimum coin, second to the 4th optoelectronic switch is used for detecting the size of coin value, for making 1 jiao, 5 jiaos, when 1 yuan of coin is by detecting, just corresponding in the second to a 4th optoelectronic switch optoelectronic switch output state changes, second optoelectronic switch 12 is the sense switch of 1 jiao, 3rd optoelectronic switch 13 is the sense switch of 5 jiaos, 4th optoelectronic switch 14 is the sense switch of 1 yuan.All optoelectronic switches all adopt infrared emission count detection sensor, high level is exported when the long 25mm of this sensor, wide 25mm, high 16mm, signal export acquiescence low level, light beam is blocked, groove width is 15mm, and comprise LM393 chip, the infrared head of correlation, schematic diagram as shown in Figure 4.
16mm, 18mm, 21mm is followed successively by by the height of coin diameter large I determination corresponding light electric switch distance groove.Consider that the detection range of optoelectronic switch and Detecting of coin are by the stability in direction during raceway groove, detect channel width and are designed to 5mm.
Adopt STC89C52 single-chip microcomputer as main control chip in governor circuit module 3,1602 character mode lcds are adopted in display module (4), because infrared emission count detection sensor signal output acquiescence low level, light beam export high level when being blocked, and STC89C52 interface microcontroller is low level triggering, so need increase a NOT gate chip (74LS04) infrared emission count detection sensor signal is converted to low level, circuit system schematic diagram as shown in Figure 5.
SCM program shows storage coin value and stores the functions such as data when mainly realizing Detecting of coin, its main program flow: first SCM system initializes, then the data reading coin statistics in E2PROM also show, and be finally etc. to be interrupted, flow chart as shown in Figure 6.
Fig. 7 is INTO service routine flow chart, and INTO sequence triggers the mark as there being coin to pass through detection, and its service routine mainly completes judges coin value, coin amount of money statistics etc. to the second to the 4th optoelectronic switch output signal level.
The output of the first optoelectronic switch is connected to the external interrupt 0(INTO of single-chip microcomputer), as the external interrupt signal of single-chip microcomputer, often kind of coin is producing interrupt signal when the first optoelectronic switch detects, as the mark passed through with or without coin, the output of the second to the 4th optoelectronic switch is connected to three I/O mouths of single-chip microcomputer.Can be determined it is the coin of which kind of face amount by the state of inquiring about 3 I/O mouths, flow chart as shown in Figure 8.
The part that the utility model is not specifically introduced all can adopt ripe functional module of the prior art.
Be more than the preferred implementation of the utility model, it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these apparent replacement forms all belong to protection domain of the present utility model.
Claims (7)
1. an electronic coin penny bank, comprise Detecting of coin module (1), power module (2), governor circuit module (3), display module (4), it is characterized in that: described Detecting of coin module comprises the first optoelectronic switch (11), the second optoelectronic switch (12), the 3rd optoelectronic switch (13), the 4th optoelectronic switch (14) that detect raceway groove (15) and be located at detection raceway groove (15) top successively; Described power module is connected with Detecting of coin module, governor circuit module and display module respectively, the signal output part of Detecting of coin module connects the signal input part of governor circuit module, by the detection signal input governor circuit module produced, the signal output part of governor circuit module connects the signal input part of display module, is shown by the Detection Information after integrated treatment by display module.
2., according to electronic coin penny bank described in claim 1, it is characterized in that: described detection raceway groove (15) inner width is 5mm.
3., according to electronic coin penny bank described in claim 1, it is characterized in that: described first optoelectronic switch (11), the second optoelectronic switch (12), the 3rd optoelectronic switch (13), the 4th optoelectronic switch (14) are infrared emission count detection sensor.
4. according to electronic coin penny bank described in claim 3, it is characterized in that: the height of described first optoelectronic switch (11), the second optoelectronic switch (12), the 3rd optoelectronic switch (13), the 4th optoelectronic switch (14) distance detection raceway groove (15) groove is followed successively by 15mm, 16 mm, 18mm, 21mm.
5., according to electronic coin penny bank described in claim 1, it is characterized in that: described governor circuit module (3) comprises STC89C52 single-chip microcomputer.
6., according to the arbitrary described electronic coin penny bank of claim 1,3,5, it is characterized in that: described governor circuit module (3) comprises 74LS04 NOT gate chip; The high level signal that sensor is inputted main control module by described 74LS04 NOT gate chip is converted into low level.
7., according to electronic coin penny bank described in claim 1, it is characterized in that: described display module (4) comprises 1602 character mode lcds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420788571.1U CN204317744U (en) | 2014-12-15 | 2014-12-15 | A kind of electronic coin penny bank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420788571.1U CN204317744U (en) | 2014-12-15 | 2014-12-15 | A kind of electronic coin penny bank |
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| Publication Number | Publication Date |
|---|---|
| CN204317744U true CN204317744U (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420788571.1U Active CN204317744U (en) | 2014-12-15 | 2014-12-15 | A kind of electronic coin penny bank |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105146878A (en) * | 2015-08-06 | 2015-12-16 | 上海斐讯数据通信技术有限公司 | Intelligent saving pot |
| CN105768431A (en) * | 2014-12-15 | 2016-07-20 | 魏晓慧 | Electronic coin storage tank |
-
2014
- 2014-12-15 CN CN201420788571.1U patent/CN204317744U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105768431A (en) * | 2014-12-15 | 2016-07-20 | 魏晓慧 | Electronic coin storage tank |
| CN105146878A (en) * | 2015-08-06 | 2015-12-16 | 上海斐讯数据通信技术有限公司 | Intelligent saving pot |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160214 Address after: 516007, Huizhou, Guangdong province Huicheng district on the South Bank of the horse village cold pit Patentee after: Huizhou College Address before: 516002 Guangdong city of Huizhou Province East Sunshine Holiday Garden D3 building 701 reachall Patentee before: Wei Xiaohui |