CN105825596A - Dustproof reminding circuit and method for infrared sensor in ATM (Automatic Teller Machine) - Google Patents
Dustproof reminding circuit and method for infrared sensor in ATM (Automatic Teller Machine) Download PDFInfo
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- CN105825596A CN105825596A CN201610154765.XA CN201610154765A CN105825596A CN 105825596 A CN105825596 A CN 105825596A CN 201610154765 A CN201610154765 A CN 201610154765A CN 105825596 A CN105825596 A CN 105825596A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F19/00—Complete banking systems; Coded card-freed arrangements adapted for dispensing or receiving monies or the like and posting such transactions to existing accounts, e.g. automatic teller machines
- G07F19/20—Automatic teller machines [ATMs]
- G07F19/201—Accessories of ATMs
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- Accounting & Taxation (AREA)
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention discloses a dustproof reminding circuit and method for an infrared sensor in an ATM (Automatic Teller Machine). The dustproof reminding circuit for the infrared sensor in the ATM comprises a MCU (Microprogrammed Control Unit), a constant-current driving module, a warning module, an infrared emitting module, an infrared receiving module and an ADC (Analog Digital Converter) module. The method comprises: a step A, after powering on, by the MCU, setting that a default current provides a current signal to the infrared receiving module; a step B, by the infrared receiving module, receiving a photoelectric signal from the infrared emitting module, converting the photoelectric signal into an ADC value by the ADC module, and transmitting the ADC value to the MCU; a step C, by the MCU, judging whether the infrared sensor is shielded through comparing the ADC value, and giving an alarm to the warning module so as to prompt maintenance personnel to carry out maintenance. According to the dustproof reminding circuit and method for the infrared sensor in the ATM, which are disclosed by the invention, a design size of a control circuit of the sensor can be reduced, data stability of the sensor is reinforced, and dustproof reminding is achieved. As the dustproof reminding circuit and method for the infrared sensor in the ATM, the invention is widely applicable to the field of the ATM.
Description
Technical field
The present invention relates to ATM field, particularly relate to a kind of ATM mid-infrared pickup dust-proofing alert circuit and method.
Background technology
In ATM system, widely distributed infrared photoelectric sensor.These sensors are distributed in each passage and storage position.At ATM core inner, the sum of various photoelectric sensors is more than 200.The difference in functionalitys such as these photoelectric sensors have record bank note running orbit, banknote movement velocity, just look like the eyes of ATM.Infrared sensor is exactly one of which, and common infrared sensor type is more, and its common drive circuit is circuit as shown in Figure 1.In Fig. 1, Emitter connects the transmitting terminal of opposite type sensor, and Detector connects receiving terminal.Certain simulation value can be obtained by pull-up resistor R2, be sent to MCU process through ADC conversion.The forward drive current of transmitting terminal Emitter is If, and receiving terminal is Ic after receiving photoelectric current amplification.Ic has impact to the collection value size of ADC.The size of Ic is affected by And if distance simultaneously, and concrete condition is with reference to Fig. 2 forward current If-Ic oscillogram, Fig. 3 transmitting terminal and receiving terminal distance D-Ic oscillogram.Can draw from Fig. 2 and Fig. 3, the size of If to Ic is directly proportional, its ratio is affected by distance, the most remote arrival current Ic is the least for distance, and owing to the infrared sensor quantity in ATM is many, and position is different, make the huge circuit of circuit scale complicated, in daily ATM uses, sensor easy dust stratification dirt, affect the susceptiveness of infrared sensor.
Summary of the invention
In order to solve above-mentioned technical problem, it is an object of the invention to provide a kind of design on control circuit scale that can reduce sensor, strengthen sensing data stability, the ATM mid-infrared pickup dust-proofing alert circuit of dust-proof early warning and method.
The technical solution adopted in the present invention is: a kind of ATM mid-infrared pickup dust-proofing alert circuit, it includes MCU, constant-current driven module, alarm module, infrared transmission module, infrared receiving module and ADC, the outfan of described MCU is connected with constant-current driven module and alarm module respectively, the outfan of described infrared receiving module is connected with the input of ADC, the outfan of described constant-current driven module is connected with the input of infrared transmission module, the outfan of described ADC is connected with the input of MCU
Described constant-current driven module has multiple outfan, and it is for providing driving electric current to infrared transmission module；
Described MCU controls the output size of current of constant-current driven module according to the output signal of ADC；
Described alarm module is used for reporting an error, and points out artificial treatment.
Further, described constant-current driven module TLC5941 chip, described TLC5941 chip has 16 output ports, and the output current class of each output port is each grade 1mA, and maximum is adjustable to 63mA.
Further, 10 ADC that described MCU uses gather signal, and ADC value scope is between 0-1024.
Further, described infrared transmission module includes no less than an infrared transmitting tube, and described infrared transmitting tube is connected with the outfan of constant-current driven module.
Further, described infrared receiving module includes no less than an infrared receiving tube, and each of which infrared receiving tube is connected with the input of MCU by ADC the most respectively.
Additionally, another aspect of the present invention, it is provided that a kind of video recording device, comprising: a kind of ATM mid-infrared pickup dust-proofing based reminding method, described method includes:
Step A: after the power-up, MCU arranges acquiescence electric current and provides current signal to infrared receiving module；
Step B: infrared receiving module receives from the photosignal of infrared transmission module, and be converted into ADC value by ADC and be transferred to MCU；
Step C:MCU, by according to ADC value, controls infrared transmission module and drives electric current or judge whether infrared sensor is blocked, and send alarm to alarm module, and prompting maintenance personnel safeguard.
Further, described step C includes:
C1: if ADC value is less than 200, illustrating not to be blocked, dust is less, it is possible to use；
C2: if greater than 200, then increase the driving electric current 1mA of infrared transmission module, if the driving electric current of infrared transmission module < 50mA, MCU again read off ADC to contrasting, until normally；If the driving electric current of infrared transmission module > 50mA, then stop increasing electric current, reported an error by alarm module, point out artificial treatment.
The invention has the beneficial effects as follows: the present invention can reduce the design on control circuit scale of sensor, strengthen sensing data stability, in terms of power consumption, it is also possible to control flexibly, the purpose of energy-conserving and environment-protective can be reached, can dust-proof remind simultaneously.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described further:
Fig. 1 is common infrared emission sensor drive driving circuit；
Fig. 2 is forward current If-photoelectric current Ic oscillogram；
Fig. 3 is transmitting terminal and receiving terminal distance D-Ic oscillogram；
Fig. 4 is the structural representation of a specific embodiment of the present invention；
Fig. 5 is the circuit theory diagrams of a specific embodiment of the present invention；
Fig. 6 is the circuit theory diagrams of another specific embodiment of the present invention；
Fig. 7 is the flow chart of the present invention.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.
As described in Figure 4, a kind of ATM mid-infrared pickup dust-proofing alert circuit, it includes MCU, constant-current driven module, alarm module, infrared transmission module, infrared receiving module and ADC, the outfan of described MCU is connected with constant-current driven module and alarm module respectively, the outfan of described infrared receiving module is connected with the input of ADC, the outfan of described constant-current driven module is connected with the input of infrared transmission module, the outfan of described ADC is connected with the input of MCU
Described constant-current driven module has multiple outfan, and it is for providing driving electric current to infrared transmission module；
Described MCU controls the output size of current of constant-current driven module according to the output signal of ADC；
Described alarm module is used for reporting an error, and points out artificial treatment.
Its operation principle is: exports different driving electric currents by constant-current driven module, and is used for driving infraluminescence pipe by this driving electric current, thus greatly reducing the scale of drive circuit, and ensure that homeostasis and stability that electric current drives.
Being further used as preferred embodiment, described alarm module is the display screen of ATM, is used for showing miscue information.
Being further used as preferred embodiment, described constant-current driven module TLC5941 chip, described TLC5941 chip has 16 outfans, and current class is each grade 1mA, and maximum is adjustable to 63mA.
Being further used as preferred embodiment, 10 ADC that described MCU uses gather signal, and ADC value scope is between 0-1024.
Being further used as preferred embodiment, described infrared transmission module includes no less than an infrared transmitting tube, and described infrared transmitting tube is connected with the outfan of constant-current driven module.
Being further used as preferred embodiment, described infrared receiving module includes no less than an infrared receiving tube, and each of which infrared receiving tube is connected with the input of MCU by ADC the most respectively.
As shown in Figure 5, in figure, U3 is constant-current driving scalable chip U3, and its pin BLANK, XLAT, SCLK, SIN, MODE, GSCLK, XERR are connected with MCU pin.U3 can regulate 64 current classes, regulates reference current grade according to R4, and the current class of design is 1mA at present.Chip U3 has 16 outfans, and each outfan can be designed to different driving electric currents, and is used for driving infraluminescence pipe by this driving electric current.Thus greatly reducing the scale of drive circuit, and ensure that homeostasis and stability that electric current drives.
As shown in Figure 6, owing to the number of sensors in ATM is many, and there is the sensor that positional distance is identical.Then can use the type of drive of Fig. 6, described infrared receiving tube takes position connection of connecting, and so designs and can reduce the quantity of cable and reduce cost.
The present invention contributes to promoting the reliability of ATM, reduces ATM manufacturing cost.In terms of power consumption, it is also possible to control flexibly, the purpose of energy-conserving and environment-protective can be reached.
Additionally, another aspect of the present invention, it is provided that a kind of video recording device, comprising: a kind of ATM mid-infrared pickup dust-proofing based reminding method, described method includes:
Step A: after the power-up, MCU arranges acquiescence electric current and provides current signal to infrared receiving module.
Step B: infrared receiving module receives from the photosignal of infrared transmission module, and be converted into ADC value by ADC and be transferred to MCU.
Step C:MCU is by contrast ADC value, it is judged that whether infrared sensor is blocked, and sends alarm to alarm module, and prompting maintenance personnel safeguard.
Being further used as preferred embodiment, described step C includes:
C1: if ADC value is less than 200, illustrating not to be blocked, dust is less, it is possible to use；
C2: if greater than 200, then increase the driving electric current 1mA of infrared transmission module, if the driving electric current of infrared transmission module < 50mA, MCU again read off ADC to contrasting, until normally；If the driving electric current of infrared transmission module > 50mA, then stop increasing electric current, reported an error by alarm module, point out artificial treatment.
As shown in Figure 5 and Figure 6, all can be considered closed-loop control system.After machine powers on, machine can carry out sensor self-checking function by the device in Fig. 4.MCU controls U3, opens first to OUT0 road constant flow channel corresponding for transmitting terminal Emitter1, and receiving terminal Detector1 receives optical signal, and is translated into corresponding level value by pull-up resistor, and this signal then accesses at ADC and is acquired.The ADC signal collected carrying out contrast judge, its judged result can be used for regulation and drives the current class of electric current If.The current class of U3 is each grade 1mA, and maximum is adjustable to 63mA.
As it is shown in fig. 7, after the power-up, MCU arranges acquiescence electric current, reads ADC value.If ADC value is less than 200, illustrating not to be blocked, dust is less, it is possible to use；If greater than 200, then increase And if drive electric current 1mA.If If < 50mA, MCU again reads off ADC to contrasting, until normally.If If > 50mA, then stopping increasing electric current, report an error artificial treatment.
It is above the preferably enforcement of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement on the premise of spirit of the present invention, and deformation or the replacement of these equivalents are all contained in the application claim limited range.
Claims (7)
1. an ATM mid-infrared pickup dust-proofing alert circuit, it is characterized in that: it includes MCU, constant-current driven module, alarm module, infrared transmission module, infrared receiving module and ADC, the outfan of described MCU is connected with constant-current driven module and alarm module respectively, the outfan of described infrared receiving module is connected with the input of ADC, the outfan of described constant-current driven module is connected with the input of infrared transmission module, the outfan of described ADC is connected with the input of MCU
Described constant-current driven module has multiple outfan, and it is for providing driving electric current to infrared transmission module；
Described MCU controls the output size of current of constant-current driven module according to the output signal of ADC；
Described alarm module is used for reporting an error, and points out artificial treatment.
ATM mid-infrared pickup dust-proofing alert circuit the most according to claim 1, it is characterized in that: described constant-current driven module TLC5941 chip, described TLC5941 chip has 16 output ports, the output current class of each output port is each grade 1mA, and maximum is adjustable to 63mA.
ATM mid-infrared pickup dust-proofing alert circuit the most according to claim 2, it is characterised in that: 10 ADC that described MCU uses gather signal, and ADC value scope is between 0-1024.
ATM mid-infrared pickup dust-proofing alert circuit the most according to claim 2, it is characterised in that: described infrared transmission module includes that, no less than an infrared transmitting tube, described infrared transmitting tube is connected with the outfan of constant-current driven module.
ATM mid-infrared pickup dust-proofing alert circuit the most according to claim 3, it is characterized in that: described infrared receiving module includes no less than an infrared receiving tube, each of which infrared receiving tube is connected with the input of MCU by ADC the most respectively.
6. an ATM mid-infrared pickup dust-proofing based reminding method, it is characterised in that: described method includes:
Step A: after the power-up, MCU arranges acquiescence electric current and provides current signal to infrared receiving module；
Step B: infrared receiving module receives from the photosignal of infrared transmission module, and be converted into ADC value by ADC and be transferred to MCU；
Step C:MCU, by according to ADC value, controls infrared transmission module and drives electric current or judge whether infrared sensor is blocked, and send alarm to alarm module, and prompting maintenance personnel safeguard.
ATM mid-infrared pickup dust-proofing based reminding method the most according to claim 6, it is characterised in that: described step C includes:
C1: if ADC value is less than 200, illustrating not to be blocked, dust is less, it is possible to use；
C2: if greater than 200, then increase the driving electric current 1mA of infrared transmission module, if the driving electric current of infrared transmission module < 50mA, MCU again read off ADC to contrasting, until normally；If the driving electric current of infrared transmission module > 50mA, then stop increasing electric current, reported an error by alarm module, point out artificial treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610154765.XA CN105825596A (en) | 2016-03-16 | 2016-03-16 | Dustproof reminding circuit and method for infrared sensor in ATM (Automatic Teller Machine) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610154765.XA CN105825596A (en) | 2016-03-16 | 2016-03-16 | Dustproof reminding circuit and method for infrared sensor in ATM (Automatic Teller Machine) |
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| CN105825596A true CN105825596A (en) | 2016-08-03 |
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| CN201610154765.XA Pending CN105825596A (en) | 2016-03-16 | 2016-03-16 | Dustproof reminding circuit and method for infrared sensor in ATM (Automatic Teller Machine) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107885272A (en) * | 2017-11-27 | 2018-04-06 | 昆明理工大学津桥学院 | Card reader photoelectric sensor antidusting regulating circuit |
| CN114220241A (en) * | 2021-12-28 | 2022-03-22 | 上海上实龙创智能科技股份有限公司 | Smoke-sensitive ash deposition detection method based on infrared emission frequency and duty ratio waveform |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0593660A (en) * | 1991-10-02 | 1993-04-16 | Hitachi Ltd | Voice guidance method |
| CN200990113Y (en) * | 2006-08-14 | 2007-12-12 | 北京神州金信科技有限公司 | ATM discharging currency module control system apparatus |
| CN101464523A (en) * | 2007-12-21 | 2009-06-24 | 纳蒂卢斯晓星公司 | Automatic compensation method of sensor |
| CN201845376U (en) * | 2010-11-03 | 2011-05-25 | 吴卫 | Paper currency detection circuit |
| CN102081822A (en) * | 2011-01-30 | 2011-06-01 | 安徽天和弱电电子系统工程有限公司 | Automatic teller machine (ATM) intelligent identification system |
| US20120024944A1 (en) * | 2010-07-29 | 2012-02-02 | Lg N-Sys Inc. | Medium processing apparatus, medium processing method, and financial device |
-
2016
- 2016-03-16 CN CN201610154765.XA patent/CN105825596A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0593660A (en) * | 1991-10-02 | 1993-04-16 | Hitachi Ltd | Voice guidance method |
| CN200990113Y (en) * | 2006-08-14 | 2007-12-12 | 北京神州金信科技有限公司 | ATM discharging currency module control system apparatus |
| CN101464523A (en) * | 2007-12-21 | 2009-06-24 | 纳蒂卢斯晓星公司 | Automatic compensation method of sensor |
| US20120024944A1 (en) * | 2010-07-29 | 2012-02-02 | Lg N-Sys Inc. | Medium processing apparatus, medium processing method, and financial device |
| CN201845376U (en) * | 2010-11-03 | 2011-05-25 | 吴卫 | Paper currency detection circuit |
| CN102081822A (en) * | 2011-01-30 | 2011-06-01 | 安徽天和弱电电子系统工程有限公司 | Automatic teller machine (ATM) intelligent identification system |
Non-Patent Citations (2)
| Title |
|---|
| 《最新常用集成块快速查速用手册》编写组: "《最新常用集成块快速查速用手册》", 30 June 2010, 机械工业出版社 * |
| 马丽等: "一种直下式LED背光源的设计", 《现代显示》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107885272A (en) * | 2017-11-27 | 2018-04-06 | 昆明理工大学津桥学院 | Card reader photoelectric sensor antidusting regulating circuit |
| CN107885272B (en) * | 2017-11-27 | 2023-12-19 | 昆明理工大学津桥学院 | Photoelectric sensor dust-proof voltage regulating circuit for card reader |
| CN114220241A (en) * | 2021-12-28 | 2022-03-22 | 上海上实龙创智能科技股份有限公司 | Smoke-sensitive ash deposition detection method based on infrared emission frequency and duty ratio waveform |
| CN114220241B (en) * | 2021-12-28 | 2023-11-10 | 上海上实龙创智能科技股份有限公司 | Smoke sensation ash accumulation detection method based on infrared emission frequency and duty cycle waveform |
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Application publication date: 20160803 |