CN101799966B - Information theft-preventing protecting device of financial self-service equipment and working method thereof - Google Patents
Information theft-preventing protecting device of financial self-service equipment and working method thereof Download PDFInfo
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- CN101799966B CN101799966B CN2010101211105A CN201010121110A CN101799966B CN 101799966 B CN101799966 B CN 101799966B CN 2010101211105 A CN2010101211105 A CN 2010101211105A CN 201010121110 A CN201010121110 A CN 201010121110A CN 101799966 B CN101799966 B CN 101799966B
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Abstract
The invention discloses an information theft-preventing protecting device of financial self-service equipment and a working method thereof. The device comprises a shell, a laser distance measuring module, a control module and an interface module, wherein the laser distance measuring module, the control module and the interface module are installed in the shell; the optical axis of the laser distance measuring module aligns to a card reader on the financial self-service equipment and the periphery thereof; a circuit of the laser distance measuring module is electrically connected with the control module and the interface module sequentially; and the interface module is electrically connected with an external alarm system. When the device is operated, firstly, a precise distance parameter value between an installation point and a card reader of a laser emitting device is measured and used as an alarm distance parameter threshold value; then, measuring light beams are periodically projected to the periphery of the card reader, and the judgment is carried out according to the received measuring distance parameter and the preset early warning time parameter. When the measuring distance value exceeds the alarm distance parameter threshold value, the physical state or form at the periphery of the card reader is changed, and the alarm is given according to the set situation. The invention can effectively eliminate the phenomena of false alarm and missing alarm without changing the self-service equipment.
Description
Technical field
The present invention relates to a kind of information safety protector, specifically is a kind of automatic teller machine (ATM, CDM), bank card information theft-preventing protecting device on the Possums such as terminal of paying the fees that is installed in.
Background technology
At present, whether the antitheft card technique on the Possums such as existing ATM generally adopts variety of way to survey the Possum card reader has foreign matter (as stealing the card device) to exist on every side, generally adopts three kinds of methods, is example below with the ATM, and other Possum is similar:
1, utilizes the principle of reflection of infrared light, on ATM, be positioned at card reader and get through unthreaded hole on every side, outwards launch infrared light through light hole, then judge existence robber card device if any blocking from Possum inside.
This method shortcoming is and must on ATM, punches, and destroys the ATM prototype structure, wrong report will occur as long as there is foreign matter (dust etc.) to block factors such as light hole or ambient light variation, and rate of false alarm is high; In case walking around light hole when the installation of card device occurring stealing will occur failing to report.
2, electricity, changes of magnetic field situation and normal condition are relatively stolen the card device if any electricity, magnetic field abnormality juding for existence on every side to utilize magnetic field strength transducer or electromagnetic field intensity sensing equipment to survey the ATM card reader.
This method and the method 1 the same short-range detecting technology that belongs to also must be beaten mounting hole on ATM, change the ATM prototype structure, if ATM is a metal shell, detecting devices just must be external, itself just becomes a potential safety hazard; This method, can be failed to report again if turn down detection sensitivity as long as there is the object that can change magnetic field intensity to exist and will report by mistake on every side from principle, and the sensitivity adjustment yardstick is difficult to hold.
3, the image that utilizes image processing techniques to analyze the ATM card reader is found out characteristics, compares with original card reader image, steals the card device if any then judging unusually to exist.
This method is responsive to the brightness of image, and is very high to the image definition requirement, therefore causes very high rate of false alarm; Disadvantage is not have antiforge function, and is alike then can't differentiate if the robber who installs blocks device outward appearance and original card reader, will produce seriously and fail to report.
Summary of the invention
Technical matters to be solved by this invention provides a kind ofly can be eliminated wrong report and fail to report phenomenon, and the information theft-preventing protecting device that need not to change Possum is installed, and this information theft-preventing protecting device can telecommute, good concealment, and reliability is high.In addition, the present invention also provides the method for work of the information theft-preventing protecting device of financial self-service equipment, adopts this method can realize noncontact, the safety case of long-range detection financial self-service equipment.
The information theft-preventing protecting device of financial self-service equipment of the present invention; Its financial self-service equipment the place ahead that is installed in separated by a distance; This device comprises shell and laser ranging module, control module and interface module in the enclosure is installed; Be provided with optical window with laser ranging module correspondence position on the said shell; Card reader on the optical axis alignment financial self-service equipment of laser ranging module and on every side, the circuit of laser ranging module is electrically connected with control module and interface module successively, and interface module is electrically connected with extraneous warning system.Above-mentioned laser ranging module is preferably phase type laser ranging module.
In addition, the present invention also provides the method for work of the information theft-preventing protecting device of above-mentioned financial self-service equipment, and it may further comprise the steps:
Original state: the laser beam emitting device projection measuring beam that at first uses the fixed position is to the card reader of financial self-service equipment and carry out multiple point distance measurement on every side; Round phasometer based on measuring beam is calculated parameter two-way time; And be converted into the mounting points of laser beam emitting device and the accurate distance parameter value between the card reader, and with this parameter value as the alarm distance parameter threshold;
Duty: laser beam emitting device throws measuring beam by certain cycle around the card reader of financial self-service equipment, and judges based on the measuring distance parameter of receiving, when the measuring distance value does not exceed the alarm distance parameter threshold, keeps current state; When the measuring distance value has exceeded the alarm distance parameter threshold; Illustrate that variation has taken place for physical state or form around the card reader; Then send alarm signal to control module; And add up continuing time of fire alarming, surpassed the pre-warning time parameter threshold of setting if continue the time of fire alarming statistics, then control module is outwards sent alarm command and early warning alarm signal through interface module; Surpassed the time of fire alarming parameter of setting if continue the time of fire alarming statistics, then control module is outwards sent alarm command and alarm signal through interface module.
The present invention is because utilize phase type laser ranging module to realize high-precision laser multiple point distance measurement, and measuring accuracy reaches 0.5mm; Can around card reader, form the lasing safety net,, not only be provided with conveniently because equipment is installed in Possum the place ahead certain distance; Good concealment; And need not to destroy Possum, the installation site is flexible, can be installed in the distance of 0.05 meter to 20 meters of ATM card reader; In addition, the laser optical path of this device not only investigative range is big, and is difficult for affected by environment and electromagnetic interference (EMI), the problem that efficiently solves the legacy equipment wrong report and fail to report.
Next solves the spoofing problem in the image discriminating, because adopted the laser high-precision multiple point distance measurement, only if the robber who installs blocks device thickness less than 0.5mm otherwise equally can be identified.
Description of drawings
Fig. 1 is the synoptic diagram of installation site of the present invention;
Fig. 2 is a workflow diagram of the present invention;
Fig. 3 is that structure of the present invention is seen figure.
Embodiment
As shown in Figure 1, the present invention is installed in the preceding body of wall shelter of Possum (like the ATM ATM), and the direction of adjustment equipment is incident upon around the automatic teller machine card reader Laser Measurement bundle of equipment.Fig. 2 is a workflow diagram of the present invention; Be specially: after the system start-up; The laser ranging module is carried out initialization; Send the indication laser beam to the position of card reader, calculate parameter two-way time of measuring beam, and be converted into anti-robber and block the mounting points of system and the distance parameter value between the card reader according to the round phasemeter of indication light beam.The laser ranging module sends in the control module this parameter as the alarm distance parameter threshold.After initial alarm threshold value configures; Control module is sent to the laser ranging module by certain cycle and is measured instruction; And judge according to the measuring distance parameter of receiving, when the measuring distance value that is sent to control module when the laser ranging module has exceeded initial alarm threshold value, explain that variation has taken place for the physical state of card reader or form; Change anti-robber and blocked the distance between system and the card reader; This moment, control module was added up continuing time of fire alarming, had surpassed the pre-warning time parameter threshold if continue the time of fire alarming statistics, and control module is promptly sent alarm command and early warning alarm signal through interface module to outside panalarm; Surpassed the time of fire alarming parameter if continue the time of fire alarming statistics; Then send alarm command and alerting signal to outside panalarm by interface module; Interface module is sent alerting signal through RJ45 and RS232 interface to panalarm; Thereby make the duty personnel of bank in time find the unusual of card reader, machinery or the artificial fault of investigation, the safe and reliable operation of assurance ATM ATM card reader.
As shown in Figure 3, hardware components of the present invention mainly is made up of interface module, control module and laser ranging module, the principle explanation:
1, phase type laser ranging module
The phase type laser ranging is to use 10MHz-300MHz; Laser beam is carried out amplitude modulation(PAM) and measured the phase delay that the light modulated round trip is produced; According to light wavelength, the distance of this phase delay representative that converts is measured bright dipping through coming and going the required time of measured point with indirect method.
If the light modulated angular frequency is ω, the phase delay that round trip produces on distance B to be measured is Δ φ, and then corresponding time t can be expressed as:
t＝(Δφ)/ω
Because existing phase-detection technology can't detect integer π, so effectively phase difference φ is that the round tested distance of signal once produces the not enough π part of phase delay.
Tested distance B can be expressed as
D＝(c*t)/2
D＝(c*(Δφ/ω))/2
D＝(c*Δφ)/(2*ω)
D＝(c*Δφ)/(4*π*f)
D＝(c/(4*π*f))*Δφ
In the formula:
ω: the angular frequency of modulation signal, ω=2 π f.
Δ φ: signal comes and goes tested distance and once produces the not enough π part of phase delay.
Under given modulation and standard atmosphere condition; Frequency c/ (4 π f) is a constant; The measurement of distance became the measurement of fraction part that survey line comprises measurement and the not enough half-wavelength of half-wavelength number and promptly surveyed N or φ this moment; Since modern age precise machine machining with wireless electrical measurement mutually the technology development, made the measurement of φ reach very high precision.
In order to record the phase angle φ of not enough π, can measure through diverse ways, using maximum usually is to postpone to survey mutually to survey mutually with numeral, the short distance laser range finder all adopts numeral survey facies principle to try to achieve φ at present.
2, control module
The laser ranging module is initiatively sent work state information to control module after initialization is accomplished, control module is judged according to parameter preset after receiving the work state information of range finder module, and made corresponding actions according to judged result control interface module.
3, interface module
Interface module is made up of RJ45, RS232, sends relevant information according to the instruction of control module.
Native system production standard, testing and control project is accurate, and selected metering system is the phase type laser range finder, meets the advanced theory of high precision range observation, and decoration structure features simple design is reasonable, and performance sensitive is superior.It rationally utilizes the high precision and the accurate positioning property of laser measurement system; The strict card reader space on every side that covers of measuring beam; The lasing safety net precision that forms reaches 0.5mm, has broken the measurement function limitation that traditional anti-robber blocks the anti-system of stealing secret information, the validity and the sensitivity that have obviously improved system.Compare existing all kinds of anti-robber's card techniques, both can prevent that the camouflage in the image analysis method from failing to report, the method for measuring with electromagnetic field measurements than infrared light again has stronger antijamming capability, reports and fail to report problem by mistake thereby thoroughly solve.Simultaneously native system is laid flexibly, realizes that hidden being prone to control, and need not direct increase additional equipment on atm device, does not influence the conventional installation procedure of atm device.System adopts low power dissipation design, and its source current is less than 100mA under 12V supply voltage condition.Adopt ISO9000 production quality control operation simultaneously, reduce environmental pollution.
Claims (1)
1. the method for work of the information theft-preventing protecting device of a financial self-service equipment; Described information theft-preventing protecting device; Its financial self-service equipment the place ahead that is installed in separated by a distance; This device comprises shell and laser ranging module, control module and interface module in the enclosure is installed, and is provided with optical path with laser ranging module correspondence position on the said shell, the card reader on the optical axis alignment financial self-service equipment of laser ranging module and on every side; The circuit of laser ranging module is electrically connected with control module and interface module successively, and interface module is electrically connected with extraneous warning system; It is characterized in that may further comprise the steps:
State is set: the laser ranging module projection measuring beam that at first uses predeterminated position is to the card reader of financial self-service equipment and carry out multiple point distance measurement on every side; Round phasometer based on measuring beam is calculated parameter two-way time; And be converted into the preset of laser ranging module and the accurate distance parameter value between the card reader, and with this parameter value as the alarm distance parameter threshold;
Duty: the laser ranging module is throwed measuring beam by certain cycle around the card reader of financial self-service equipment, and judges based on the measuring distance value of receiving, when the measuring distance value does not exceed the alarm distance parameter threshold, keeps current state; When the measuring distance value has exceeded the alarm distance parameter threshold; Illustrate that variation has taken place for physical state or form around the card reader; Then send alarm signal to control module; And add up continuing time of fire alarming, surpassed the pre-warning time parameter threshold of setting if continue the time of fire alarming statistics, then control module is outwards sent alarm command and early warning alarm signal through interface module; Surpassed the time of fire alarming parameter of setting if continue the time of fire alarming statistics, then control module is outwards sent alarm command and alarm signal through interface module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101211105A CN101799966B (en) | 2010-03-10 | 2010-03-10 | Information theft-preventing protecting device of financial self-service equipment and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101211105A CN101799966B (en) | 2010-03-10 | 2010-03-10 | Information theft-preventing protecting device of financial self-service equipment and working method thereof |
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| CN101799966A CN101799966A (en) | 2010-08-11 |
| CN101799966B true CN101799966B (en) | 2012-05-02 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506721B (en) * | 2011-11-07 | 2014-05-28 | 中南大学 | Laser-based deformation displacement measurement method |
| CN103280033A (en) * | 2013-05-28 | 2013-09-04 | 周文静 | Light-control prompting ATM |
| CN103280031A (en) * | 2013-05-28 | 2013-09-04 | 周文静 | Light-control accuracy ATM |
| EP2897112B1 (en) * | 2014-01-17 | 2019-03-06 | Wincor Nixdorf International GmbH | Method and apparatus for the prevention of false alarms in monitoring systems |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0580297A2 (en) * | 1992-07-22 | 1994-01-26 | Ici Americas Inc. | Anti-theft device |
| CN1227344A (en) * | 1998-02-23 | 1999-09-01 | 亚洲光学股份有限公司 | Laser range finding method and device |
| CN101405774A (en) * | 2006-03-23 | 2009-04-08 | 吉尔巴科股份公司 | A device for checking the regularity of the operation of automatic payment terminals |
| CN201359747Y (en) * | 2009-03-03 | 2009-12-09 | 盐城师范学院 | Safety warning system of ATM equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7726557B2 (en) * | 2002-12-16 | 2010-06-01 | Peregrin Technologies, Inc. | Currency dispense and control system with anti-theft features |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0580297A2 (en) * | 1992-07-22 | 1994-01-26 | Ici Americas Inc. | Anti-theft device |
| CN1227344A (en) * | 1998-02-23 | 1999-09-01 | 亚洲光学股份有限公司 | Laser range finding method and device |
| CN101405774A (en) * | 2006-03-23 | 2009-04-08 | 吉尔巴科股份公司 | A device for checking the regularity of the operation of automatic payment terminals |
| CN201359747Y (en) * | 2009-03-03 | 2009-12-09 | 盐城师范学院 | Safety warning system of ATM equipment |
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