CN208636819U - A kind of encryption electromagnetic screen - Google Patents
A kind of encryption electromagnetic screen Download PDFInfo
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- CN208636819U CN208636819U CN201821008541.9U CN201821008541U CN208636819U CN 208636819 U CN208636819 U CN 208636819U CN 201821008541 U CN201821008541 U CN 201821008541U CN 208636819 U CN208636819 U CN 208636819U
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- encryption
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- electromagnetic screen
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- electromagnetic
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- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000036410 touch Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The utility model discloses a kind of encryption electromagnetic screens, it includes shell, electromagnetic induction plate and control panel, it is provided with IIC interface, encryption chip on the control panel and touches chip, the touch chip is connect with the encryption chip, the encryption chip is connect with the IIC interface, and the output end of the electromagnetic induction plate is connect with the touch chip.The utility model is encrypted by encryption chip to model is touched, so that the security performance of electromagnetic screen greatly improves, in addition encryption chip is arranged on control panel this practicability, so that electromagnetic screen inner space is compact, convenient electromagnetic screen does further embedded design.The utility model is widely used in encryption technology field as a kind of encryption electromagnetic screen.
Description
Technical field
The utility model relates to encryption technology field more particularly to a kind of encryption electromagnetic screens.
Background technique
Electromagnetic screen products-hardware structure currently on the market is all similar, be mainly achieved in that in LCD module internal or
Outside increases the circuit coil antenna plate of a particular topology, and antenna plate emits signal by one piece and inductive signal changes function
Control panel is connected with master control borad, and when work, circuit coil antenna plate can generate low coverage magnetic field, corresponding when time writer is close
Magnetic field at pen tip can change, and the coordinate and pressure sensitivity of pen tip are transmitted according to the particular algorithm inside this variation and control panel
Etc. parameters.
Equally, with Electronic Development, the service terminals such as finance, E-Government input the conventional entity keyboard of password
Also develop to the dummy keyboard direction realized with touch screen, electromagnetic screen captures rapidly finance, resistance government affairs with its high precision
Equal markets, and the business such as traditional finance, E-Government generally require very high safety, ensure information security, and it is existing
Electromagnetic screen has no encryption.
Utility model content
In order to solve the above-mentioned technical problem, it is high that the purpose of the utility model is to provide a kind of security performances, and stability is good
Encrypt electromagnetic screen.
The technical scheme adopted by the utility model is a kind of encryption electromagnetic screen comprising shell, electromagnetic induction plate and
Control panel is provided with IIC interface, encryption chip on the control panel and touches chip, the touchs chip and the encryption core
Piece connection, the encryption chip are connect with the IIC interface, and the output end of the electromagnetic induction plate and the touch chip connect
It connects.
Further, the touch chip is equipped with UART1 interface, and the encryption chip is equipped with UART2 interface, the UART1
Interface is connect with the UART2 interface.
It further, further include AD conversion module, the touch chip is connected by AD conversion module and the encryption chip
It connects.
Further, the model HW_0868 for touching chip.
Further, the model AS508H192 of the encryption chip.
Further, one of DES, 3DES, SM3, SM4 Encryption Algorithm is stored in the encryption chip.
The beneficial effects of the utility model are: the utility model is encrypted by encryption chip to model is touched, so that
The security performance of electromagnetic screen greatly improves, and in addition encryption chip is arranged on control panel this practicability, so that in electromagnetic screen
Portion's spaces compact, convenient electromagnetic screen do further embedded design.
Detailed description of the invention
Specific embodiment of the present utility model is described further with reference to the accompanying drawing:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the circuit block diagram in the utility model on control panel.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
As shown in Figure 1, a kind of encryption electromagnetic screen comprising shell 1, electromagnetic induction plate 2 and control panel 3.
With reference to Fig. 2, be provided on the control panel 3 IIC interface, encryption chip and touch chip, the touchs chip and
The encryption chip connection, the encryption chip are connect with the IIC interface, the output end of the electromagnetic induction plate and the touching
Touch chip connection.
Further preferred embodiment, the touch chip are equipped with UART1 interface, and the encryption chip is equipped with UART2
Interface, the UART1 interface are connect with the UART2 interface.
It is further used as preferred embodiment, further includes AD conversion module, the touch chip passes through AD conversion mould
Block is connect with the encryption chip.
In the present embodiment, model HW_0868, the HW_0868 chip for touching chip is based on Han Wang electromagnetism skill
The control chip of art.It is with SPI/I2C/UART/USB bus interface, USB full speed controller/PHY and 320byte buffering
Area, 3 interrupt endpoints.It can provide more easily input solution by time writer.Support 2 to 100 inches of screen
Curtain can be applied to drawing board, tablet computer, Electronic Paper and electric paper book, flat-panel monitor, mobile phone, net book etc..The encryption
The model AS508H192 of chip.32 security kernels support various states close and international standard algorithm comprehensively, support a variety of add
Decryption mode creates SQI interface, supports data encrypting and deciphering, supports multilingual character library, supports UTF8/GBK character set, has
SPI/I2C/UART/USB bus interface.It is medium that DES, 3DES, SM3, SM4 Encryption Algorithm can be stored in the encryption chip.
After collection pen is contacted with electromagnetic induction plate, touches chip and incude resulting analogue data, it is then internal to carry out data
AD conversion is digital signal, issues encryption chip by UART interface.Encryption chip receives touch chip and is transmitted through the data come
Afterwards, after internal progress encription algorithms approved by the State Password Administration Committee Office, data are transferred to application apparatus (Electronic Paper, tablet computer by the IIC interface of encryption chip
Etc.).It realizes and touches encryption.
It is to be illustrated to the preferable implementation of the utility model, but the invention is not limited to the reality above
Example is applied, those skilled in the art can also make various equivalent variations without departing from the spirit of the present invention
Or replacement, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.
Claims (6)
1. a kind of encryption electromagnetic screen comprising shell, electromagnetic induction plate and control panel, it is characterised in that: on the control panel
It is provided with IIC interface, encryption chip and touches chip, the touch chip is connect with the encryption chip, the encryption chip
It is connect with the IIC interface, the output end of the electromagnetic induction plate is connect with the touch chip.
2. encryption electromagnetic screen according to claim 1, it is characterised in that: the touch chip is equipped with UART1 interface, described
Encryption chip is equipped with UART2 interface, and the UART1 interface is connect with the UART2 interface.
3. encryption electromagnetic screen according to claim 1 or 2, it is characterised in that: it further includes AD conversion module, the touch
Chip is connect by AD conversion module with the encryption chip.
4. encryption electromagnetic screen according to claim 3, it is characterised in that: the model HW_0868 for touching chip.
5. encryption electromagnetic screen according to claim 4, it is characterised in that: the model AS508H192 of the encryption chip.
6. encryption electromagnetic screen according to claim 5, which is characterized in that be stored in the encryption chip DES, 3DES,
One of SM3, SM4 Encryption Algorithm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821008541.9U CN208636819U (en) | 2018-06-28 | 2018-06-28 | A kind of encryption electromagnetic screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821008541.9U CN208636819U (en) | 2018-06-28 | 2018-06-28 | A kind of encryption electromagnetic screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208636819U true CN208636819U (en) | 2019-03-22 |
Family
ID=65735709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821008541.9U Active CN208636819U (en) | 2018-06-28 | 2018-06-28 | A kind of encryption electromagnetic screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208636819U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116484412A (en) * | 2023-06-25 | 2023-07-25 | 深圳市上融科技有限公司 | A Passive Electromagnetic Touch Screen Handwritten Signature Encryption Algorithm, Media and Storage Device |
-
2018
- 2018-06-28 CN CN201821008541.9U patent/CN208636819U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116484412A (en) * | 2023-06-25 | 2023-07-25 | 深圳市上融科技有限公司 | A Passive Electromagnetic Touch Screen Handwritten Signature Encryption Algorithm, Media and Storage Device |
| CN116484412B (en) * | 2023-06-25 | 2024-03-22 | 深圳市上融科技有限公司 | Encryption algorithm, medium and storage device for handwriting signing of passive electromagnetic touch screen |
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