CN102565519A - Wireless direct-current high-voltage digital microammeter - Google Patents
Wireless direct-current high-voltage digital microammeter Download PDFInfo
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- CN102565519A CN102565519A CN2010106103450A CN201010610345A CN102565519A CN 102565519 A CN102565519 A CN 102565519A CN 2010106103450 A CN2010106103450 A CN 2010106103450A CN 201010610345 A CN201010610345 A CN 201010610345A CN 102565519 A CN102565519 A CN 102565519A
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Abstract
The invention discloses a wireless direct-current high-voltage digital microammeter, which comprises a current and voltage conversion module, a low pass filter, an analog-to-digital conversion module, a single-chip digital signal processing module, a liquid crystal display and a 433-MHz wireless data transmission module, wherein the current and voltage conversion module is used for converting an input current signal into a voltage signal, the low pass filter is electrically connected with the input end of the current and voltage conversion module and used for removing noise, the analog-to-digital conversion module is connected with the output end of the filter and used for converting analog into digital, the single-chip digital signal processing module is electrically connected with the output end of the analog-to-digital conversion module and used for processing a digital signal output by the analog-to-digital conversion module, the liquid crystal display is electrically connected with the single-chip digital signal processing module and used for displaying a current value in real time, and the 433-MHz wireless data transmission module is electrically connected with the single-chip digital signal processing module. By utilizing a 433-MHz wireless communication frequency and advanced power management algorithm, the microammeter has long continuous working time and is high in intelligence, stability and usability.
Description
Technical field
The present invention relates to a kind of microampere meter, the wireless high-voltage digital microampere meter of particularly a kind of high intelligence, high stability and high ease for use belongs to the electrical Instrument technology field.
Background technology
On high-tension side microampere meter of the prior art, mainly adopt following several kinds of communication modes:
1, at measured object one end the current measurement value display screen is set; Operating personnel observe through telescope and show numerical value; Because operating personnel need regulate the duty or the measurement mechanism of measured object according to observation value simultaneously, and this kind mode of operation has limited operating personnel's work difficulty undoubtedly;
2, gather conversion of signals become light signal, use optical fiber communication;
3, adopt infrared transmission, but, influence transmission quality because of the light pollution that receives sunshine easily when this kind mode is used out of doors because contain the infrared ray composition in the sunshine;
Above-mentioned several method can not satisfy the existing requirement that requires high intelligence, high stability and high ease for use aspect aspect measuring stability and the ease for use.
Summary of the invention
Technical matters to above-mentioned existence the objective of the invention is: the wireless high-voltage digital microampere meter that has proposed a kind of high intelligence, high stability and high ease for use.
Technical solution of the present invention is achieved in that a kind of wireless high-voltage digital microampere meter, comprise be used for the current signal of input convert the current/voltage modular converter of voltage signal to, the low-pass filter that is used to remove noise that is electrically connected with the output terminal of described current/voltage modular converter, be connected with the output terminal of described wave filter be used for analog-to-digital conversion module, and described analog-to-digital conversion module output terminal be electrically connected be used to handle analog-to-digital conversion module (the single-chip digital signal processing module handled of the digital signal of output, and described single-chip digital signal processing module be electrically connected and be used for showing in real time the LCD of current value and the 433MHz wireless data transfer module that is electrically connected with described single-chip digital signal processing module.
Because the utilization of technique scheme, the present invention compared with prior art has advantage:
Wireless high-voltage digital microampere meter of the present invention; Use the 433MHz wireless communication frequency, use digital data transmission and introduce CRC check mechanism; Guarantee correctness, the advanced power management algorithm of use that data are sent; Make microampere meter have longer stream time, thereby reach high intelligence, high stability and high ease for use.
Description of drawings
Below in conjunction with accompanying drawing technical scheme of the present invention is described further:
Fig. 1 is the little fundamental diagram by table of wireless high direct voltage numeral of the present invention;
Fig. 2 is the little application synoptic diagram by table of wireless high direct voltage numeral of the present invention;
Wherein: 1, current/voltage modular converter; 2, low-pass filter; 3, analog-to-digital conversion module; 4, signal processing module; 5, LCD; 6, wireless data transfer module; 7, surveillance equipment; 8, detected element.
Embodiment
Be depicted as a kind of wireless high-voltage digital microampere meter of the present invention like accompanying drawing 1,2, comprise be used for the current signal of input convert the current/voltage modular converter 1 of voltage signal to, the low-pass filter 2 that is used to remove noise that is electrically connected with the output terminal of described current/voltage modular converter 1, be connected with the output terminal of described wave filter 2 be used for analog-to-digital conversion module 3, with described analog-to-digital conversion module 3 output terminals be electrically connected be used to handle single-chip digital signal processing module 4 that digital signal that analog-to-digital conversion module 3 exports handles, and described single-chip digital signal processing module 4 be electrically connected and be used for showing in real time the LCD 5 of current value and the 433MHz wireless data transfer module 6 that is electrically connected with described single-chip digital signal processing module 4.The signal that wireless data transfer module 6 transfers out can monitored device 7 receive, and shows through the liquid crystal indicator on the watch-dog 7, judges for the user of service.
Circuit diagram in the accompanying drawing 2 partly is the testing circuit of detected element 8.
The present invention program uses faraday's equipotential cage screen method measuring principle; Use digital data transmission and introduce CRC check mechanism.
Because the utilization of technique scheme, the present invention compared with prior art has advantage:
Wireless high-voltage digital microampere meter of the present invention; Use the 433MHz wireless communication frequency, use digital data transmission and introduce CRC check mechanism; Guarantee correctness, the advanced power management algorithm of use that data are sent; Make microampere meter have longer stream time, thereby reach high intelligence, high stability and high ease for use.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (1)
1. wireless high-voltage digital microampere meter is characterized in that: comprise be used for the current signal of input convert the current/voltage modular converter (1) of voltage signal to, the low-pass filter that is used to remove noise (2) that is electrically connected with the output terminal of described current/voltage modular converter (1), be connected with the output terminal of described wave filter (2) be used for analog-to-digital conversion module (3), being electrically connected with described analog-to-digital conversion module (3) output terminal is used to handle single-chip digital signal processing module (4) that digital signal that analog-to-digital conversion module (3) exports handles, and described single-chip digital signal processing module (4) be electrically connected LCD (5) that is used for showing in real time current value and the 433MHz wireless data transfer module (6) that is electrically connected with described single-chip digital signal processing module (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106103450A CN102565519A (en) | 2010-12-28 | 2010-12-28 | Wireless direct-current high-voltage digital microammeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106103450A CN102565519A (en) | 2010-12-28 | 2010-12-28 | Wireless direct-current high-voltage digital microammeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102565519A true CN102565519A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106103450A Pending CN102565519A (en) | 2010-12-28 | 2010-12-28 | Wireless direct-current high-voltage digital microammeter |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997004373A1 (en) * | 1995-07-21 | 1997-02-06 | Philips Electronics N.V. | A voltage reference arrangement, a voltameter, a battery voltage detection arrangement, and a wireless communication device |
| CN1269510A (en) * | 1999-04-02 | 2000-10-11 | 刘诚韬 | High-precision high-isolating current detection method |
| CN2636251Y (en) * | 2003-06-20 | 2004-08-25 | 武汉科技大学 | Voltage/current on-line monitor |
| WO2007045682A1 (en) * | 2005-10-21 | 2007-04-26 | Areva T & D Uk Limited | A sampling module and a method of sampling one or more analogue characteristics of a power transmission system |
| CN1972146A (en) * | 2006-10-11 | 2007-05-30 | 北京必创科技有限公司 | A wireless data acquisition and processing method and its system |
| CN201681099U (en) * | 2010-02-20 | 2010-12-22 | 苏州市职业大学 | Multifunctional electric energy meter |
| CN202041576U (en) * | 2010-12-28 | 2011-11-16 | 苏州华电电气股份有限公司 | Wireless DC high-voltage digital microammeter |
-
2010
- 2010-12-28 CN CN2010106103450A patent/CN102565519A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997004373A1 (en) * | 1995-07-21 | 1997-02-06 | Philips Electronics N.V. | A voltage reference arrangement, a voltameter, a battery voltage detection arrangement, and a wireless communication device |
| CN1269510A (en) * | 1999-04-02 | 2000-10-11 | 刘诚韬 | High-precision high-isolating current detection method |
| CN2636251Y (en) * | 2003-06-20 | 2004-08-25 | 武汉科技大学 | Voltage/current on-line monitor |
| WO2007045682A1 (en) * | 2005-10-21 | 2007-04-26 | Areva T & D Uk Limited | A sampling module and a method of sampling one or more analogue characteristics of a power transmission system |
| CN1972146A (en) * | 2006-10-11 | 2007-05-30 | 北京必创科技有限公司 | A wireless data acquisition and processing method and its system |
| CN201681099U (en) * | 2010-02-20 | 2010-12-22 | 苏州市职业大学 | Multifunctional electric energy meter |
| CN202041576U (en) * | 2010-12-28 | 2011-11-16 | 苏州华电电气股份有限公司 | Wireless DC high-voltage digital microammeter |
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Application publication date: 20120711 |