CN103593058A - Internet-of-things-based security keypad and ATM (automated teller machine) - Google Patents
Internet-of-things-based security keypad and ATM (automated teller machine) Download PDFInfo
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- CN103593058A CN103593058A CN201310366914.5A CN201310366914A CN103593058A CN 103593058 A CN103593058 A CN 103593058A CN 201310366914 A CN201310366914 A CN 201310366914A CN 103593058 A CN103593058 A CN 103593058A
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Abstract
The invention discloses an internet-of-things-based security keypad and an ATM (automated teller machine). The internet-of-things-based security keypad comprises a circuit board, a microcontroller, at least ten nixie tubes, keys, a buzzer, a power supply, a reset circuit and a data interface. The nixie tubes are respectively connected with the microcontroller through a nixie tube drive chip. The keys are as many as the nixie tubes. The sequence of the keys can vary in real time, only a user and a system know the true password, operations are facilitated for users, acquiring the password of the user is difficult for surrounding people or cameras, and security of the passwords is improved greatly.
Description
Technical field
The present invention relates to safety equipment, especially a kind of safety keyboard and ATM based on Internet of Things.
Background technology
At present, the input keyboard of ATM in bank is all the QWERTY keyboard of 4 * 4 forms, because the position of each digital keys on keyboard is fixing inconvenient, if do not blocked, other people or the camera on side obtain the password of knowing that user inputs very much, arrange and just can know password by user's mode of operation.So existing keyboard causes user's account number cipher to exist the danger of being stolen by people.
There are at present a lot of ATM that baffle plate has been installed, very inconvenient but this device causes user to operate; In addition, even if there is baffle plate, by observing user's finger motion posture and direction, still may obtain password.
Summary of the invention
Goal of the invention: the present invention will provide a kind of safety keyboard based on Internet of Things, to address the above problem.
Technical scheme: a kind of safety keyboard based on Internet of Things, comprise circuit board, be arranged on microcontroller on circuit board, and be arranged on circuit board and the charactron being connected with microcontroller, button, hummer, power supply, reset circuit and data-interface; Described charactron is at least 10, and each charactron is connected with microcontroller by digital pipe driving chip respectively; The quantity of described button equals the quantity of charactron.
Button is touch key-press, little button or soft keyboard.Described microcontroller is AT89C51.Described reset circuit is MAX813L.Described digital pipe driving chip is SN74ls164N.Described data-interface is RS232 interface.Described safety keyboard also comprises level transferring chip MAX232CPE.Described power supply is 5V direct supply.Described safety keyboard also comprises for controlling the control knob of charactron state.
Beneficial effect: button of the present invention order changes in real time, only has user and system just to know real password, has not only facilitated user's operation, and people around or camera be difficult to obtain user's password, greatly strengthened the security of account password.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention;
Fig. 2 is the schematic diagram of keyboard of the present invention under a certain state;
Fig. 3 is the schematic diagram of keyboard of the present invention under another state.
Embodiment
As shown in Figure 1 to Figure 3, the safety keyboard that the present invention is based on Internet of Things mainly comprises following several large parts: circuit board, be arranged on microcontroller AT89C51, charactron, button, hummer, 5V direct supply, reset circuit MAX813L, level transferring chip MAX232CPE and RS232 data-interface on circuit board; Charactron is at least 10, and each charactron is connected with microcontroller by digital pipe driving chip SN74ls164N respectively; The quantity of button equals the quantity of charactron; Button is touch key-press, little button or soft keyboard.
Keyboard, by the sortord of programmed control charactron array, changes once every predetermined time, or by a certain signal, is triggered the change of charactron keyboard array.
For example, the operating process of a certain safety keyboard is as follows, and user inserts card, and terminating machine detects after card, refreshes the arrangement mode of charactron, and points out the duration of this group charactron, and user inputs password and carries out next step operation in official hour.If exceeded schedule time, again refresh charactron, again operation.In other embodiments, terminating machine can detect and store the input message in different time sections, and security performance is better.In other embodiments, safety keyboard also comprises that user can control the array of display of charactron at any time by this button, more convenient to operate for controlling the control knob of charactron state.
As shown in Figures 2 and 3, the numeric sorting mode on charactron constantly changes, the position that people at one's side of user or camera cannot judge a certain concrete digital place, thus cannot be according to the password of user's mode of operation judgement user input.Security performance is stronger than common keyboard.
Claims (10)
1. the safety keyboard based on Internet of Things, is characterized in that, comprises circuit board, is arranged on microcontroller on circuit board, and is arranged on circuit board and the charactron being connected with microcontroller, button, hummer, power supply, reset circuit and data-interface; Described charactron is at least 10, and each charactron is connected with microcontroller by digital pipe driving chip respectively; The quantity of described button equals the quantity of charactron.
2. the safety keyboard based on Internet of Things as claimed in claim 1, is characterized in that, button is touch key-press, little button or soft keyboard.
3. the safety keyboard based on Internet of Things as claimed in claim 1 or 2, is characterized in that, described microcontroller is AT89C51.
4. the safety keyboard based on Internet of Things as claimed in claim 1 or 2, is characterized in that, described reset circuit is MAX813L.
5. the safety keyboard based on Internet of Things as claimed in claim 1 or 2, is characterized in that, described digital pipe driving chip is SN74ls164N.
6. the safety keyboard based on Internet of Things as claimed in claim 1 or 2, is characterized in that, described data-interface is RS232 interface.
7. the safety keyboard based on Internet of Things as claimed in claim 6, is characterized in that, also comprises level transferring chip MAX232CPE.
8. the safety keyboard based on Internet of Things as claimed in claim 7, is characterized in that, described power supply is 5V direct supply.
9. the safety keyboard based on Internet of Things as claimed in claim 1, is characterized in that, described safety keyboard also comprises for controlling the control knob of charactron state.
10. an ATM, comprise support, Card Reader mechanism and keyboard, it is characterized in that, described keyboard comprises circuit board, be arranged on microcontroller on circuit board, and be arranged on circuit board and the charactron being connected with microcontroller, button, hummer, power supply, reset circuit and data-interface; Described charactron is at least 10, and each charactron is connected with microcontroller by digital pipe driving chip respectively; The quantity of described button equals the quantity of charactron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310366914.5A CN103593058A (en) | 2013-08-21 | 2013-08-21 | Internet-of-things-based security keypad and ATM (automated teller machine) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310366914.5A CN103593058A (en) | 2013-08-21 | 2013-08-21 | Internet-of-things-based security keypad and ATM (automated teller machine) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103593058A true CN103593058A (en) | 2014-02-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310366914.5A Pending CN103593058A (en) | 2013-08-21 | 2013-08-21 | Internet-of-things-based security keypad and ATM (automated teller machine) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103593058A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0263652A2 (en) * | 1986-10-06 | 1988-04-13 | Brother Kogyo Kabushiki Kaisha | Input device |
| US20060132331A1 (en) * | 2004-12-22 | 2006-06-22 | Lg Electronics Inc. | Apparatus and method for decoding a key press |
| CN1831727A (en) * | 2005-03-09 | 2006-09-13 | 上海新虹伟信息技术有限公司 | Disordered keyboard with visual-angle limit for cryptographic input |
| CN201111222Y (en) * | 2007-06-08 | 2008-09-03 | 北京工业大学 | Intelligent safety keyboard |
-
2013
- 2013-08-21 CN CN201310366914.5A patent/CN103593058A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0263652A2 (en) * | 1986-10-06 | 1988-04-13 | Brother Kogyo Kabushiki Kaisha | Input device |
| US20060132331A1 (en) * | 2004-12-22 | 2006-06-22 | Lg Electronics Inc. | Apparatus and method for decoding a key press |
| CN1831727A (en) * | 2005-03-09 | 2006-09-13 | 上海新虹伟信息技术有限公司 | Disordered keyboard with visual-angle limit for cryptographic input |
| CN201111222Y (en) * | 2007-06-08 | 2008-09-03 | 北京工业大学 | Intelligent safety keyboard |
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Application publication date: 20140219 |