CN202331360U - Communication conversion module for keyboard - Google Patents
Communication conversion module for keyboard Download PDFInfo
- Publication number
- CN202331360U CN202331360U CN2011204440977U CN201120444097U CN202331360U CN 202331360 U CN202331360 U CN 202331360U CN 2011204440977 U CN2011204440977 U CN 2011204440977U CN 201120444097 U CN201120444097 U CN 201120444097U CN 202331360 U CN202331360 U CN 202331360U
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- China
- Prior art keywords
- communication
- keyboard
- conversion module
- bus
- module
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a communication conversion module for a keyboard. The communication conversion module comprises a keyboard input unit, a data processing controller and a communication module, wherein the communication module is a CAN (controller area network) bus communication module, information is input by the keyboard input unit, and then, the information is processed by the data processing controller, and then the CAN bus communication module outputs a CAN signal. The communication conversion module for the keyboard uses the transmission technology of a CAN protocol, data volume transmitted in a system is small, and the transmission speed is fast, in comparison with the conventional 485 transmission and 323 protocol transmission modes, the interference rejection of the communication conversion module is improved obviously, and the communication conversion module is easily suitable for a system with CAN bus communication.
Description
Technical field
The utility model relates to a kind of mining communication modular converter, specifically, relates to a kind of keyboard and uses the communication modular converter
Background technology
What present mining communication modes was the most frequently used is 485 communication modes or 232 communication modes, but 485 communication modes or 232 communication modes have many shortcomings, and signal has polar requirement; Communication bus must chain type connect, and can not tree-shapedly connect; Signal amplitude is little, and peak value has only several volts at zero point, and poor anti jamming capability must be used shielded cable; Traffic rate is low, and ten kilometers cable communication standards only have 1200 bauds or the like.
The utility model content
The utility model has designed a kind of small data quantity to the data mode of universal keyboard, and the keyboard of high-speed transfer is used the communication modular converter.
The utility model keyboard is used the communication modular converter; Comprise keyboard input block, data processing controller, communication module; It is characterized in that communication module is the CAN bus communication module; Behind keyboard input block input information, handle through data processing controller, via CAN bus communication module output CAN signal.
Preferably, the output module of CAN bus adopts the CAN bus to isolate transceiver.
The utility model adopts the transmission technology of CAN agreement; It is little that system transmits data volume, but transfer rate is fast, compares than traditional 485 transmission and 232 agreement load modes; Antijamming capability is significantly improved, and very easily is applicable to the system with CAN bus communication.
Description of drawings
Fig. 1 is the electrical schematic diagram of the utility model keyboard with the communication modular converter.
Embodiment
The utility model keyboard is used the communication modular converter, and is as shown in Figure 1, and matrix keyboard adopts the mode of traditional rank scanning; Behind the keyboard input information, handle, draw the numerical value that needs transmission through data processing controller CPU; The CAN protocol interface that is had through data processing controller CPU then; Be sent to the CAN bus module, through the output terminal output CAN signal of CAN bus, the output module of CAN bus adopts the CAN bus to isolate transceiver.
On the structure, change design patent and adopt encapsulation technology, realized the interference of external conditions such as protection against the tide.
Claims (2)
1. a keyboard is used the communication modular converter; Comprise keyboard input block, data processing controller, communication module; It is characterized in that communication module is the CAN bus communication module; Behind keyboard input block input information, handle through data processing controller, via CAN bus communication module output CAN signal.
2. keyboard according to claim 1 is used the communication modular converter, it is characterized in that, the output module of CAN bus adopts the CAN bus to isolate transceiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204440977U CN202331360U (en) | 2011-11-11 | 2011-11-11 | Communication conversion module for keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204440977U CN202331360U (en) | 2011-11-11 | 2011-11-11 | Communication conversion module for keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202331360U true CN202331360U (en) | 2012-07-11 |
Family
ID=46443333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204440977U Expired - Lifetime CN202331360U (en) | 2011-11-11 | 2011-11-11 | Communication conversion module for keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202331360U (en) |
-
2011
- 2011-11-11 CN CN2011204440977U patent/CN202331360U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 266400 2299 Hai Xi Road, Huangdao District, Qingdao, Shandong Patentee after: Huaxia Tianxin intellectual property Limited by Share Ltd Address before: 266000 No. 176 Haixi Road, Jiaonan economic and Technological Development Zone, Qingdao, Shandong Patentee before: Qingdao Tianxin Electric Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |