CN201867799U - Analog quantity output module - Google Patents
Analog quantity output module Download PDFInfo
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- CN201867799U CN201867799U CN2010206612899U CN201020661289U CN201867799U CN 201867799 U CN201867799 U CN 201867799U CN 2010206612899 U CN2010206612899 U CN 2010206612899U CN 201020661289 U CN201020661289 U CN 201020661289U CN 201867799 U CN201867799 U CN 201867799U
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Abstract
The utility model relates to an analog quantity output module which comprises a power supply, a microprocessor, a CAN (Controller Area Network) bus unit, a photoelectric isolating circuit, at least one D/A conversion circuit and a voltage/current conversion circuit corresponding to each D/A conversion circuit, wherein a microcontroller is communicated and connected with an external main controller through the CAN bus unit, each signal output terminal of the microcontroller is connected with a signal input terminal of the D/A conversion circuit through a corresponding photoelectric isolating circuit, and a signal output terminal of the D/A conversion circuit is connected with a corresponding signal input terminal of the voltage/current conversion circuit. The analog quantity output module is used for receiving and processing the digital quantity signal, the remote digital quantity signal can be transmitted to the microprocessor and converted into an analog quantity signal, the processing to the remote signal is further realized, and the signal anti-jamming capability is high; meanwhile, the analog quantity output module is easily interfaced with the computer; and the whole module adopts a modular design, and the functional module is miniaturized and standardized, so that the configuration is convenient, and the replacement and the maintenance are convenient.
Description
Technical field
The utility model relates to a kind of data outputting module, relates in particular to a kind of analog output module.
Background technology
What microprocessor received in the existing data outputting module generally is the analog signals that acquisition module sent, and plan amount transmission range is short, and signal is disturbed easily; In addition, existing output module can't carry out interface with computing machine.
The utility model content
The purpose of this utility model provides a kind of analog output module, to solve the problem that existing output module is brought.
For achieving the above object, the utility model adopts following technical scheme: a kind of analog output module, comprise power supply, microprocessor, the CAN bus unit, photoelectric isolating circuit, at least one D/A change-over circuit and the voltage corresponding with each D/A change-over circuit, described microcontroller is used for being connected with the communication of external piloting control system device by the CAN bus unit, each signal output part of microcontroller is connected with the signal input part of D/A change-over circuit by corresponding photoelectric isolating circuit, and the signal output part of described D/A change-over circuit is connected with the respective signal input end of voltage.
This analog output module also comprises eeprom memory, and this eeprom memory links to each other with described microprocessor.
Be connected with watchdog circuit on the described microprocessor.
Described microprocessor is an embedded controller.
Analog output module of the present utility model receives handles digital quantity signal, can deliver to microprocessor to far digital quantity signal and convert analog signals to, realizes the processing of distant signal, and the signal antijamming capability is strong; Be easy to simultaneously and computer interface, can be converted to current signal to the digital signal of computing machine output, remove to control some actuators and finish robotization control; Whole module adopts modular design, functional module miniaturization standardization, and configuration is convenient, is convenient to change and maintenance; Can export analog signals by data bus; Carrying load ability by force can be with the load of 0-300 Ω; Adopt photoelectric isolation technology, PORT COM, microprocessor, output channel are isolated fully.
This module can export 8 the tunnel simultaneously, and two core communication cables are only adopted in transmission, can save a large amount of cables and reduce system cost.
Description of drawings
Fig. 1 is the schematic diagram of the utility model analog output module.
Embodiment
Below in conjunction with specific embodiment the utility model is done further introduction.
Being illustrated in figure 1 as the utility model analog output module is 8 passages, 4～20mA signal output module, comprise power supply, microprocessor, CAN bus module, photoelectric isolating circuit, D/A modular converter and voltage/current modular converter, the whole working power that provides is provided power supply unit, microcontroller adopts embedded controller, it is 8 single-chip microcomputers, be the core cell of whole module, finish the function of whole module according to program.Embedded controller is connected with the communication of external piloting control system device by the CAN bus unit, each signal output part of embedded controller is connected with the signal input part of D/A change-over circuit by corresponding photoelectric isolating circuit, and the signal output part of D/A change-over circuit is connected with the signal input part of the respective channel of voltage.
In addition, for making the module data storage more convenient, this analog output module also comprises eeprom memory, and this eeprom memory links to each other with embedded controller, is used for storage parameter is set, and outage also can forever be preserved; The watchdog circuit that connection is set on the embedded controller further guarantees the stability of whole module work; Photoelectric isolating circuit the antijamming capability that has strengthened output module is set.Power interface circuit provides working power for module, and the operating voltage of microprocessor is 5V.
Analog output module of the present utility model adopts microprocessor, and the CAN bus unit is responsible for and the external unit communication, receives the external communication signal, and it is controlled by flush bonding processor.The CAN bus connects external bus, the data of reception acquisition module are also delivered to microprocessor to data and are carried out data processing, microprocessor becomes voltage signal to digital quantity by the D/A change-over circuit, the current signal that is transformed into 4-20mA by voltage/current is exported again, has realized intelligent control and data automatic collecting.
This module has following advantage: whole module adopts modularized design, functional module miniaturization standardization, and configuration is convenient, is convenient to change and maintenance; Can export analog signals by data/address bus; Carrying load ability by force can be with the load of 0-300 Ω; Adopt photoelectric isolation technology, PORT COM, microprocessor, output channel are isolated fully.
Claims (4)
1. analog output module, it is characterized in that: comprise power supply, microprocessor, CAN bus unit, photoelectric isolating circuit, at least one D/A change-over circuit and the voltage corresponding with each D/A change-over circuit, described microcontroller is used for being connected with the communication of external piloting control system device by the CAN bus unit, each signal output part of microcontroller is connected with the signal input part of D/A change-over circuit by corresponding photoelectric isolating circuit, and the signal output part of described D/A change-over circuit is connected with the respective signal input end of voltage.
2. analog output module according to claim 1 is characterized in that: this analog output module also comprises eeprom memory, and this eeprom memory links to each other with described microprocessor.
3. analog output module according to claim 1 and 2 is characterized in that: be connected with watchdog circuit on the described microprocessor.
4. analog output module according to claim 3 is characterized in that: described microprocessor is an embedded controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206612899U CN201867799U (en) | 2010-12-15 | 2010-12-15 | Analog quantity output module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206612899U CN201867799U (en) | 2010-12-15 | 2010-12-15 | Analog quantity output module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201867799U true CN201867799U (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206612899U Expired - Fee Related CN201867799U (en) | 2010-12-15 | 2010-12-15 | Analog quantity output module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201867799U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103336477A (en) * | 2013-07-15 | 2013-10-02 | 贵州大学 | Analog output module based on CAN bus |
| CN103903412B (en) * | 2014-03-28 | 2017-04-12 | 哈尔滨工程大学 | CAN (Controller Area Network) bus to 4-20mA data signal conversion device for NOx sensor |
| CN106681230A (en) * | 2017-02-28 | 2017-05-17 | 北京桑德新环卫投资有限公司 | Signal collecting device for sanitation vehicles |
| CN107918325A (en) * | 2017-12-05 | 2018-04-17 | 中国电子信息产业集团有限公司第六研究所 | Multi-channel analog acquisition card |
-
2010
- 2010-12-15 CN CN2010206612899U patent/CN201867799U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103336477A (en) * | 2013-07-15 | 2013-10-02 | 贵州大学 | Analog output module based on CAN bus |
| CN103903412B (en) * | 2014-03-28 | 2017-04-12 | 哈尔滨工程大学 | CAN (Controller Area Network) bus to 4-20mA data signal conversion device for NOx sensor |
| CN106681230A (en) * | 2017-02-28 | 2017-05-17 | 北京桑德新环卫投资有限公司 | Signal collecting device for sanitation vehicles |
| CN107918325A (en) * | 2017-12-05 | 2018-04-17 | 中国电子信息产业集团有限公司第六研究所 | Multi-channel analog acquisition card |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20121215 |