CN201724968U - Voltage collector - Google Patents
Voltage collector Download PDFInfo
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- CN201724968U CN201724968U CN2010201523776U CN201020152377U CN201724968U CN 201724968 U CN201724968 U CN 201724968U CN 2010201523776 U CN2010201523776 U CN 2010201523776U CN 201020152377 U CN201020152377 U CN 201020152377U CN 201724968 U CN201724968 U CN 201724968U
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- voltage
- acquisition device
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Abstract
The utility model relates to voltage collector, which comprises a core module, an analog-to digital conversion module, an LED display module, a serial device and a computer, wherein the core module is respectively electrically connected with the analog-to-digital module and the LED display module, the output end of the analog-to-digital module is connected with the computer through the serial device, an external voltage is converted into digital quantity through the analog-to-digital module to be displayed on the LED display module, and a voltage value is transmitted to the computer through the serial device. The utility model has the advantages that the voltage collector has characteristics of low voltage, low energy consumption, high integration and the like, has advantages of high efficiency, simple structure and low cost, is easy to realize, and can be widely applied.
Description
Technical field
The utility model relates to a kind of voltage acquisition device.
Background technology
Along with the fast development of observation and control technology, be that the data acquisition system (DAS) of core has accounted for dominant position with the embedded computer in measurement and control area.Data acquisition system (DAS) be with collection in worksite to data handle, transmit, operation such as demonstration, storage.The major function of data acquisition system (DAS) is that simulating signal is become digital signal, and analyzes, handles, stores and show.
All control in TT﹠C system now and the instrument and meter with microprocessor or computing machine.Microprocessor and Computer Processing all be digital signal, and the external world mostly is an analog quantity, data acquisition system (DAS) just becomes the bridge that computing machine and the external world are got in touch, and is the important step in TT﹠C system and the instrument and meter.And modern scientific research, commercial production, communications and transportation, clinical medicine etc. propose more and more higher requirement to the data acquisition system, and high-speed, high precision, to measure under dynamic condition be the developing direction of data acquisition system (DAS).
So-called voltage acquisition device is used for gathering voltage.The utility model is based on the voltage acquisition device of microprocessor.Develop one and external voltage can be converted to the voltage acquisition device of by serial port magnitude of voltage being passed to PC behind the digital quantity by A/D converter.
The utility model content
The purpose of this utility model provides a kind of voltage acquisition device, after based on microprocessor external voltage being gathered, is converted to digital quantity by the A/D modular converter, again this magnitude of voltage is transferred to computing machine.
To achieve these goals, the utility model provides a kind of voltage acquisition device, is characterized in, comprises nucleus module, analog-to-digital conversion module, charactron display module, serial equipment and computing machine;
Above-mentioned nucleus module is connected with charactron display module circuit with analog-to-digital conversion module respectively;
The output terminal of described charactron display module connects computing machine by serial equipment;
External voltage is presented at after analog-to-digital conversion module is converted to digital quantity on the charactron display module, by serial equipment magnitude of voltage is transferred to computing machine.
Above-mentioned voltage acquisition device, wherein, nucleus module is the 89c51 single-chip microcomputer.
Above-mentioned voltage acquisition device, wherein, analog-to-digital conversion module is the ADC0809 chip.
Above-mentioned voltage acquisition device, wherein, serial equipment is serial interface circuit MAX232.
Above-mentioned voltage acquisition device, wherein, the CLK signal that the exportable analog-to-digital conversion module of nucleus module needs when carrying out analog to digital conversion.
The utility model compared with prior art, its advantage is:
1. super low-power consumption:, have characteristics such as low-voltage, low-power consumption and high integration because this voltage acquisition device has adopted embedded microprocessor;
2. efficient height, simple in structure: this voltage acquisition device efficient height, only use several chips or element to realize;
3. be easy to realize: this voltage acquisition device is easy to realize that expense is low, can widespread use.
Description of drawings
Fig. 1 is the structured flowchart of the voltage acquisition device that provides of the utility model.
Embodiment
Below in conjunction with Fig. 1, describe preferred embodiment of the utility model in detail.
As shown in Figure 1, Fig. 1 is the structured flowchart of the voltage acquisition device that provides of the utility model.A kind of voltage acquisition device comprises nucleus module 1, analog-to-digital conversion module 2, charactron display module 3, serial equipment 4 and computing machine 5.Nucleus module 1 is connected with charactron display module 3 circuit with analog-to-digital conversion module 2 respectively, the output terminal of charactron display module 3 connects computing machine 5 by serial equipment 4, external voltage is presented at after analog-to-digital conversion module 2 is converted to digital quantity on the charactron display module 3, by serial equipment 4 magnitude of voltage is transferred to computing machine 5.
Nucleus module 1 is the 89c51 single-chip microcomputer.
The 89C51 single-chip microcomputer is compatible fully with the external pin and the order set of 8051/8751/8031 chip of early stage Intel, has only substituted ROM/EPROM with Flash ROM.
A complete computing machine should be made up of arithmetical unit, controller, storer and I/O interface.
1. CPU (central processing unit)
CPU is the core of single-chip microcomputer, is the control and the command centre of single-chip microcomputer, is made up of parts such as arithmetical unit and controllers.
(1) arithmetical unit
Arithmetical unit comprises a unit ALU that can carry out 8 arithmetical operations and logical operation, 8 working storage 1 (TMP1), working storage 2 (TMP2), 8 totalizer ACC, register B and program status register PSW etc.
(2) controller
Controller comprises programmable counter PC, order register IR, command decoder ID, oscillator and timing circuit etc.
2. storer
Flash ROM and RAM two classes are arranged in the 89C51 sheet, and they have separately independently memory address space, and are very inequality with the memory configurations mode of general microcomputer.
(1) program storage
89C51 sheet internal program memory span is 4kb, and the address is used to the form constant of the program of depositing from 0000H.
(2) data-carrier store
Data-carrier store is 128 bytes in the 89C51 sheet, and the address is 00H-7FH, is used to deposit the temporary and data buffering of intermediate result, the data of computing etc.
In the RAM of 128 bytes, there are 32 byte units can be appointed as work register.This is with general microprocessor difference, and 89C51 ram in slice and work register come unified addressing in the formation.
The inner a plurality of special function registers such as SP, DPTR, PCON, IE and IP in addition of 89C51 single-chip microcomputer, they also address in a formation with 128 byte RAM, and the address is 80H-FFH.In this 128 byte ram cell 21 special function registers are arranged, these special function registers also comprise P0-P3 mouth latch
3.I/O interface
89C51 has 48 bit parallel interface, i.e. P0-P3 with outside exchange message.They all are accurate bidirectional ports, and each port respectively has 8 I/O lines, but all I/O.4 latchs of P0-P3 mouth can be used as general special function register to the I/O mouth and come addressing with the RAM unified addressing.
Except that 48 bit parallel mouths, programmable complete two serial ports altogether of 89c51 utilize P3.0 and P3.1, can realize and external serial communication.
Analog-to-digital conversion module 2 is ADC0809 chips.ADC0809 is by one 8 road analogue quantity switch, address latch and code translator, and one 8 road A/D converter and a ternary output latch are formed.But 8 analog channels of multi-way switch gating allow 8 tunnel analog quantity timesharing input, and shared A/D converter is changed.Ternary output lock device is used to latch the digital quantity that A/D converts, and when the OE end is high level, just can take the data that convert away from ternary output latch.
Serial equipment 4 is serial interface circuit MAX232.
The voltage acquisition device that the utility model provides is used for gathering voltage, at first, carries out the A/D conversion by the ADC0809 chip.Because the ADC0809 chip needs clock signal when carrying out the A/D conversion, and the clock of the ADC0809 of this moment is to be connected on the P3.3 port of 89c51 single-chip microcomputer, so use for the ADC0809 chip from the p3.3 clock signal.Data through after the A/D conversion are presented on the charactron by 89c51.By serial ports data are sent to computing machine at last, so just finished the overall process of voltage acquisition.
Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple modification of the present utility model with to substitute all will be conspicuous.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (4)
1. a voltage acquisition device is characterized in that, comprises nucleus module (1), analog-to-digital conversion module (2), charactron display module (3), serial equipment (4) and computing machine (5);
Described nucleus module (1) is connected with charactron display module (3) circuit with analog-to-digital conversion module (2) respectively;
The output terminal of described charactron display module (3) connects computing machine (5) by serial equipment (4);
External voltage is presented at after analog-to-digital conversion module (2) is converted to digital quantity on the charactron display module (3), by serial equipment (4) magnitude of voltage is transferred to computing machine (5).
2. voltage acquisition device as claimed in claim 1 is characterized in that, described nucleus module (1) is the 89c51 single-chip microcomputer.
3. voltage acquisition device as claimed in claim 1 is characterized in that, described analog-to-digital conversion module (2) is the ADC0809 chip.
4. voltage acquisition device as claimed in claim 1 is characterized in that, described serial equipment (4) is serial interface circuit MAX232.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201523776U CN201724968U (en) | 2010-04-08 | 2010-04-08 | Voltage collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201523776U CN201724968U (en) | 2010-04-08 | 2010-04-08 | Voltage collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201724968U true CN201724968U (en) | 2011-01-26 |
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ID=43493308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201523776U Expired - Fee Related CN201724968U (en) | 2010-04-08 | 2010-04-08 | Voltage collector |
Country Status (1)
| Country | Link |
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| CN (1) | CN201724968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105629806A (en) * | 2014-10-28 | 2016-06-01 | 江苏绿扬电子仪器集团有限公司 | Four-path data acquisition system based on single-chip microcomputer |
-
2010
- 2010-04-08 CN CN2010201523776U patent/CN201724968U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105629806A (en) * | 2014-10-28 | 2016-06-01 | 江苏绿扬电子仪器集团有限公司 | Four-path data acquisition system based on single-chip microcomputer |
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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: 20110126 Termination date: 20110408 |