CN104833874A - Module used for electrical parameter measurement of electrical equipment - Google Patents
Module used for electrical parameter measurement of electrical equipment Download PDFInfo
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- CN104833874A CN104833874A CN201510161255.0A CN201510161255A CN104833874A CN 104833874 A CN104833874 A CN 104833874A CN 201510161255 A CN201510161255 A CN 201510161255A CN 104833874 A CN104833874 A CN 104833874A
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Abstract
The invention relates to a module used for electrical parameter measurement of electrical equipment. The module comprises an acquisition module and a processing module. The acquisition module and the processing module are connected in a communication manner through RS232 and RS 485 communication protocols. The acquisition module is formed by sensors with acquisition functions, an A/D converter, a single-chip microcomputer, and an RS232/RS485 drive circuit. The A/D converter is formed by a plurality of A/D conversion modules which are connected in parallel. Electric signals acquired by the sensors are converted to digital signals through the A/D converter, and the A/D converter transmits the digital signals to a single-chip microcomputer processing unit. The output signals of the single-chip microcomputer processing unit and the A/D converter realize asynchronous communication through a communication processing module. The single-chip microcomputer processing unit processes digital signals, and the digital signals are transmitted to the processing module through the RS232/RS485 drive circuit. The module can measure electric parameters and humiture parameters of power distribution equipment, and mainly realizes functions of electric quantity statistics, electric condition monitoring, alarm, statistics and recording of electrical equipment. The module is a precise intelligent power distribution device serving a distribution room or a communication data machine room.
Description
Technical field
The present invention relates to a kind of electric power data monitoring equipment, be a kind of module for electrical equipment electric parameter measurement specifically, belong to power equipment equipment technical field.
Background technology
Electric power is the main energy sources in people's daily life and commercial production, plays very important effect in modern society.Along with the progressively foundation of China's electricity market and perfect, electric system becomes increasingly complex, and in electric system, particularly in In the distribution system of low voltage, the use of non-linear, impact load, brings serious harm to the quality of power supply of electric system in a large number.The progress of industrial expansion, science and technology, power industry is to Large Copacity future development, enterprise's productive technology management constantly proposes new requirement to industrial electrical accurate-metering, energy-saving and cost-reducing is one of outstanding feature of modern industry progress, improve electric energy effective rate of utilization, comprehensive monitoring and improvement are carried out to the quality of power supply, has become problem in the urgent need to address.Realize the comprehensive regulation to the quality of power supply, just must realize on-line analysis and the Real-Time Monitoring of the quality of power supply, to understand the level of the quality of power supply.
For the electric system of the electrical equipment of different field, need the monitoring device designing a kind of multi-functional electrical equipment parameter, not only want to detect in real time by the parameters of electric power important to humiture and voltage and current etc., also need that there is complete communication function simultaneously.
Summary of the invention
Technical matters to be solved by this invention is, for the shortcoming that above prior art exists, a kind of module for electrical equipment electric parameter measurement is proposed, not only want to detect in real time important parameters of electric power such as the humiture of electrical equipment electrical quantity and voltage and currents, also need that there is complete communication function simultaneously.
The technical scheme that the present invention solves above technical matters is: provide a kind of module for electrical equipment electric parameter measurement, comprise acquisition module and processing module, and described acquisition module is connected by the communication of RS232 and RS485 communications protocol with between processing module; Described acquisition module forms by having the sensor of acquisition function, A/D converter, single-chip microcomputer and RS232/RS485 driving circuit, described A/D converter is made up of multiple A/D modular converter be arranged in parallel, described sensor converts by described A/D converter the electric signal collected to digital signal, again by described A/D converter by digital data transmission to single-chip microcomputer processing unit, the output signal of described single-chip microcomputer processing unit realizes asynchronous communication by Communication processing module and described A/D converter; Described single-chip microcomputer processing unit is sent to processing module by RS232/RS485 driving circuit again by after digital signal processing.
Further restriction technical scheme provided by the invention, the aforesaid module for electrical equipment electric parameter measurement, described processing module is embedded processing platform, the monitoring software of this processing platform adopts B/S structure, and provides the apparatus 32 road I/O interfaces, 2 road RS232/RS485 intelligent interface inputs, owing to having built the unification monitor supervision platform based on TCP/IP in processing platform, later stage only progressively need add sensor, just progressively can complete power, electrical quantity and environment, security and gate inhibition, the Centralized Monitoring of each system such as video image, by adopting TCP/IP mode, in GPRS/CDMA broadband wireless network, in wired or wireless LAN net, in VPN virtual net etc., control point can rise with supervision and management center and Database easily and contact, with lower cost, to the power distribution room power-equipment of extensively distribution, environment, security fire-fighting, video images etc. realize unification monitor supervision platform.
The aforesaid module for electrical equipment electric parameter measurement, described sensor comprises Temperature Humidity Sensor, current transformer, voltage transformer (VT) and Boolean value output sensor, described voltage transformer (VT) adopts model PT5481 series voltage mutual inductor, because electric current and voltage circuit all have employed mutual inductor, the electrical isolation of asking really realizing supply line and metering circuit improves the anti-electromagnetic interference capability of whole measuring system and the reliability of measuring system; Described current transformer adopts CTx series mini current transformer, and electric current is than 60A/20mA 50Hz class of accuracy 0.1 grade of nominal load 10 Ω; Temperature Humidity Sensor adopts SHT10 sensor, and Temperature Humidity Sensor, signal are amplified process by this sensor, A/D conversion, I2C bus are all on one chip integrated, can directly be connected with interface microcontroller.
The aforesaid module for electrical equipment electric parameter measurement, described A/D converter adopts 4 16 tunnel 8 bit pad ADC0816; Described single-chip microcomputer adopts AT89352.
The aforesaid module for electrical equipment electric parameter measurement, described RS232 driving circuit adopts MAX232 process chip; Described RS485 driving circuit adopts MAX435 process chip.
Further, the aforesaid module for electrical equipment electric parameter measurement, described Communication processing module adopts 74WC154D chip; Single chip circuit is also connected with reset circuit and temperature sensor signal circuit.
Beneficial effect of the present invention: the present invention can to the measurement of controller switching equipment electrical quantity and humiture parameter, main realization is added up the electricity of electrical equipment, electricity condition monitoring, report to the police, statistics and the function such as record, one that be one is switchgear building or the service of communication data machine room accurate intelligentized power distribution equipment.
Accompanying drawing explanation
Fig. 1 is the middle acquisition module road schematic diagram of the embodiment of the present invention 1.
Fig. 2 is circuit diagram of the present invention.
Embodiment
embodiment 1
The present embodiment provides a kind of module for electrical equipment electric parameter measurement, comprises acquisition module and processing module, and described acquisition module is connected by the communication of RS232 and RS485 communications protocol with between processing module;
Acquisition module forms by having the sensor of acquisition function, A/D converter, AT89352 single-chip microcomputer and RS232/RS485 driving circuit, A/D converter is made up of the 16 tunnel 8 bit pad ADC0816 modular converters that four are arranged in parallel, sensor converts by A/D converter the electric signal collected to digital signal, again by A/D converter by digital data transmission to AT89352 single-chip microcomputer processing unit, the output signal of AT89352 single-chip microcomputer processing unit realizes asynchronous communication by 74WC154D Communication processing module and A/D converter; AT89352 single-chip microcomputer processing unit is sent to processing module by RS232/RS485 driving circuit again by after digital signal processing, and RS232 driving circuit adopts MAX232 process chip; RS485 driving circuit adopts MAX435 process chip; Processing module is embedded processing platform, and the monitoring software of this processing platform adopts B/S structure, and provides the apparatus 32 road I/O interfaces, 2 road RS232/RS485 intelligent interface inputs; Single chip circuit is also connected with reset circuit and temperature sensor signal circuit.The sensor of the present embodiment comprises Temperature Humidity Sensor, current transformer, voltage transformer (VT) and Boolean value output sensor, voltage transformer (VT) adopts model PT5481 series voltage mutual inductor, current transformer adopts CTx series mini current transformer, and Temperature Humidity Sensor adopts SHT10 sensor.
The signal of collection is connected 1-12 stitch and the 38-40 stitch of 16 8 the ADC0816 modular converters in tunnel that four are arranged in parallel by the sensor of the present embodiment by signal wire, signal after treatment exports by the 24-31 stitch of ADC0816 modular converter the 32-39 stitch connecing AT89352 single-chip microcomputer, the 21-23 stitch output signal of AT89352 single-chip microcomputer to be connected with the 33-36 stitch of ADC0816 modular converter by 74WC154D Communication processing module and to realize asynchronous communication, the signal of AT89352 single-chip microcomputer exports stitch and is connected with MAX435 process chip with the MAX232 process chip in RS232/RS485 driving circuit respectively, MAX232 process chip signal output interface RS232 communication interface is set, at MAX435 process chip signal output interface, RS485 communication interface is set, the 1-2 stitch of AT89352 single-chip microcomputer is connected with SHT10 temperature sensor, 9 stitch of AT89352 single-chip microcomputer are connected with reset circuit.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (9)
1. for a module for electrical equipment electric parameter measurement, comprise acquisition module and processing module, it is characterized in that: described acquisition module is connected by the communication of RS232 and RS485 communications protocol with between processing module;
Described acquisition module forms by having the sensor of acquisition function, A/D converter, single-chip microcomputer and RS232/RS485 driving circuit, described A/D converter is made up of multiple A/D modular converter be arranged in parallel, described sensor converts by described A/D converter the electric signal collected to digital signal, again by described A/D converter by digital data transmission to single-chip microcomputer processing unit, the output signal of described single-chip microcomputer processing unit realizes asynchronous communication by Communication processing module and described A/D converter; Described single-chip microcomputer processing unit is sent to processing module by RS232/RS485 driving circuit again by after digital signal processing.
2. as claimed in claim 1 for the module of electrical equipment electric parameter measurement, it is characterized in that: described processing module is embedded processing platform, the monitoring software of this processing platform adopts B/S structure, and provides the apparatus 32 road I/O interfaces, 2 road RS232/RS485 intelligent interface inputs.
3., as claimed in claim 1 for the module of electrical equipment electric parameter measurement, it is characterized in that: described sensor comprises Temperature Humidity Sensor, current transformer, voltage transformer (VT) and Boolean value output sensor.
4. the module for electrical equipment electric parameter measurement according to claim 1 or 3, is characterized in that: described A/D converter adopts 4 16 tunnel 8 bit pad ADC0816; Described single-chip microcomputer adopts AT89352.
5. the module for electrical equipment electric parameter measurement according to claim 3, is characterized in that: described voltage transformer (VT) adopts model PT5481 series voltage mutual inductor, and described current transformer adopts CTx series mini current transformer.
6. the module for electrical equipment electric parameter measurement according to claim 3, is characterized in that: Temperature Humidity Sensor adopts SHT10 sensor.
7. the module for electrical equipment electric parameter measurement according to claim 1, is characterized in that: described RS232 driving circuit adopts MAX232 process chip; Described RS485 driving circuit adopts MAX435 process chip.
8. the module for electrical equipment electric parameter measurement according to claim 1, is characterized in that: described Communication processing module adopts 74WC154D chip.
9. the module for electrical equipment electric parameter measurement according to claim 1, is characterized in that: described single chip circuit is also connected with reset circuit and temperature sensor signal circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510161255.0A CN104833874A (en) | 2015-04-07 | 2015-04-07 | Module used for electrical parameter measurement of electrical equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510161255.0A CN104833874A (en) | 2015-04-07 | 2015-04-07 | Module used for electrical parameter measurement of electrical equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110392091A (en) * | 2019-03-06 | 2019-10-29 | 苏州工业职业技术学院 | A/D capture card based on NB-iot technology |
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| CN204065355U (en) * | 2014-09-11 | 2014-12-31 | 国家电网公司 | Primary cut-out coil intelligent detection device |
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| CN2685880Y (en) * | 2004-03-31 | 2005-03-16 | 湖南远能电力发展有限公司 | Sulfur hexafluoride gas on-line monitoring apparatus in high-voltage electrical equipment |
| CN2773762Y (en) * | 2005-03-30 | 2006-04-19 | 成都振中电气有限公司 | Monitoring protector of substation |
| WO2008058420A1 (en) * | 2006-11-13 | 2008-05-22 | Bingren Zhou | Remote monitoring management system of electric power device |
| CN201323472Y (en) * | 2008-12-19 | 2009-10-07 | 潍坊北大青鸟华光通信技术有限公司 | Distribution transformer monitoring device |
| CN202351395U (en) * | 2011-11-03 | 2012-07-25 | 杭州高电科技有限公司 | Device for testing dynamic property of circuit breaker |
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| CN110392091A (en) * | 2019-03-06 | 2019-10-29 | 苏州工业职业技术学院 | A/D capture card based on NB-iot technology |
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Application publication date: 20150812 |