CN101949740A - Novel all-digital SF6 gas and micro water online monitor - Google Patents
Novel all-digital SF6 gas and micro water online monitor Download PDFInfo
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- CN101949740A CN101949740A CN 201010248228 CN201010248228A CN101949740A CN 101949740 A CN101949740 A CN 101949740A CN 201010248228 CN201010248228 CN 201010248228 CN 201010248228 A CN201010248228 A CN 201010248228A CN 101949740 A CN101949740 A CN 101949740A
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Abstract
The invention discloses a novel all-digital SF6 gas and micro water online monitor, which mainly comprises a CPU, and a digital temperature and humidity sensor and an independent address recognition terminal module which are connected with the CPU respectively. In the invention, the complexity of peripheral circuit processing and the volume of the circuit board are reduced greatly, the stability and reliability of equipment are improved, equipment are smaller and more easy to install and use, totally new independent address recognition terminal technology is introduced, the new functions are provided for the monitor, the use of other peripheral equipment in the process in which the monitor integrates an on-line monitoring system is reduced, the system is simpler, the integrated is more convenient, and the data query is more convenient and quicker.
Description
Technical field
The present invention relates to gas little water on-line monitoring device and monitoring technical field, specifically be meant the little water on-line monitoring of a kind of new type digital SF6 gas device.
Background technology
Sulfur hexafluoride (SF
6) be a kind of nontoxic, tasteless, colourless, do not have smell, non-flammable forming gas, have incomparable insulation characterisitic of general dielectric and arc extinguishing ability.Fill SF
6The electrical equipment floor area little, running noises is little, no fire hazard has greatly improved the safe reliability of electric equipment operation.And the notion of traditional transformer station has been broken in the application of gas-insulated metal-enclosed electrical equipment (GIS), and the development of compact, high voltage, the new-type transformer station of high capacity is achieved, and becomes the important channel that city net transformer station transforms.In recent years, SF
6Electrical equipment has at home and abroad obtained using widely, and demonstrates impayable superiority.
Along with the widespread usage of SF6 gas, also become important operating index for the status monitoring of SF6 gas in the high-voltage switch gear field.Relevant departments have formulated DL/T596-1996 " power equipment preventive trial rules ", GB/T8905-1996 industry rules such as " The guide for processing and measuring SF6 gas in power apparatuss " for the status monitoring of SF6 gas, requirement is monitored SF6 gas index of correlation, particularly density, temperature, micro-water content.
At present the SF6 gas monitor developed into by off-line type online, index of correlation that can real time on-line monitoring SF6 gas, and the application of certain limit has been arranged.But present SF6 gas on-line monitoring device has the following disadvantages:
1) portioned product adopts the sensor of output analog quantity (as: 4-20mA) electric signal, and after the analog signals processing with sensor output, with the output signal of simulating signal as monitor, signal is subjected to the electromagnetic interference (EMI) in the environment easily.
2) portioned product adopts the sensor of analog quantity, output signal after monitor is converted into digital signal by simulation A/D converter spare, because must increasing peripheral circuit, the use of analog device handles, cause the increase of equipment volume, increasing of circuit also causes equipment more to be subject to the interference of external electromagnetic signal, the stability of reduction equipment and reliability are if the not high accuracy of detection of equipment and the fiduciary level of yet causing of the design level of peripheral circuit is not high.
Present product all needs to use special data processing unit or intelligent cell to carry out data acquisition and processing at the scene the output signal of monitor, passes through communication Protocol Conversion, networking and teletransmission then to rear computer monitoring Platform Implementation Centralized Monitoring.Thereby the data that each monitor can only be indirectly inquired about by on-site data processing unit or intelligent cell in main control room and remote scheduling center realize directly obtaining the state of the SF6 air chamber of monitoring.Such monitor can not be directly as the absolute address equipment network because do not possess absolute address identification terminal (IAIT, Individual AddressIdentifiable Terminal) function.Adopt such monitor to carry out the system integration and not only bring the more work amount to engineering construction, also, cause whole monitoring system can not obtain equipment running status in real time, exactly because the interference of the complexity of system link or external environment condition causes the reduction of system stability.
Summary of the invention
The objective of the invention is to overcome the shortcoming and defect of above-mentioned prior art, the little water on-line monitoring of a kind of new type digital SF6 gas device is provided, this on-line monitoring device has significantly reduced complexity and circuit board volume that peripheral circuit is handled, when having improved the stability of equipment and reliability, realized the miniaturization of equipment, be easier to install and use; Introduced brand-new absolute address identification terminal technology, increased the function of monitor, reduced the use of monitor peripheral other equipment in being integrated in the process of line monitoring system simultaneously, system is simpler, integrated convenience, and data query is also more convenient.
Purpose of the present invention is achieved through the following technical solutions: the little water on-line monitoring of a kind of new type digital SF6 gas device mainly is made of CPU and the digitizing Temperature Humidity Sensor that links to each other with CPU respectively and absolute address identification terminal module.
The present invention also comprises the power module that all links to each other with CPU, digitizing Temperature Humidity Sensor and absolute address identification terminal module, thereby realizes used various modules are powered.
Described digitizing Temperature Humidity Sensor is integrated in the IC chip, and the digitizing Temperature Humidity Sensor fully contacts monitored SF6 gas, and all functions are finished in the IC chip, and the temperature and humidity value of output is a digitized signal.
Described digitizing Temperature Humidity Sensor comprises temperature sensing unit and humidity sensor unit, and temperature sensing unit and humidity sensor unit all are integrated in the IC chip, sensing unit fully contacts with monitored SF6 gas, and the signal that detects output becomes digital signal output at last through the AD sampling processing.
In sum, the invention has the beneficial effects as follows:
(1) the present invention has adopted the modular design of absolute address identification terminal, has realized the identification of the absolute address of equipment, makes equipment can use system under any communication protocol, realizes interconnecting of networking;
(2) the present invention is provided with power module, thereby realizes used various modules are powered.
(3) digitizing Temperature Humidity Sensor of the present invention is integrated in the IC chip, and simple in structure, antijamming capability is strong, and stability is high;
(4) the present invention has adopted high performance CPU to carry out data processing, and is reliable and stable;
(5) simplicity of design of the present invention, the product miniaturization, antijamming capability is strong, and stability is high;
(6) the present invention possesses absolute address identification and various communications protocols is changed, and can be used as independently that the network equipment optionally is connected in any communications network system, installs and uses very convenient;
Description of drawings
Fig. 1 is a theory diagram of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.
Embodiment:
As shown in Figure 1, the present invention mainly is made of CPU and the digitizing Temperature Humidity Sensor that links to each other with CPU respectively and absolute address identification terminal module, CPU, digitizing Temperature Humidity Sensor and absolute address identification terminal module all link to each other with power module, thereby realize used various modules are powered.
The digitizing Temperature Humidity Sensor adopts the IC design, be that the digitizing Temperature Humidity Sensor is integrated in the IC chip, the digitizing Temperature Humidity Sensor fully contacts monitored SF6 gas, and all functions are finished in the IC chip, and the temperature and humidity value of output is a digitized signal.Integrated high-precision temperature sensing unit, humidity sensor unit in the IC chip, sensing unit fully contacts with monitored SF6 gas, and the signal that detects output becomes digital signal output at last through the AD sampling processing.
CPU carries out numerical operation and data processing after receiving signal from the digitizing Temperature Humidity Sensor, obtains accurately measured value and exports to absolute address identification terminal module.
Absolute address identification terminal module functions is to finish the data that receive from CPU are encapsulated and handle, and gives devices allocation address, coding, packet encapsulation, and finishes the conversion of communication protocol; After realizing absolute address identification and communication Protocol Conversion, realize that by network connection and grid data transmit in real time.The characteristics of absolute address identification terminal module are to specify different geocoding modes according to actual needs, realize independently physical address, then data are communicated protocol conversion, realize PERCOM peripheral communication.Need to prove that geocoding can adopt toggle switch, but be not limited to use toggle switch, also can realize by software; The communication protocol of using can be used various communication protocols (as: RS485, CAN, IPV4, IPV6 etc., but be not limited to these) neatly, realizes by private communication chip or software.
The present invention is further detailed explanation below in conjunction with the system network environment of 16 bit address codings and IPV4:
Monitor equipment is with after monitored SF6 gas fully contacts, Temperature Humidity Sensor will detect the temperature and humidity of SF6 gas, detected value is transferred to CPU with digitized electric signal, CPU obtains temperature and humidity value accurately after by data processing, digitized mode sends absolute address identification terminal module to, absolute address identification terminal module is at first specified one 16 geocoding to equipment, then Monitoring Data is packaged into the packet of the IPV4 of standard according to the communications protocol format of IPV4 with address and measurement data packing, is connected the realization real-time Communication for Power with system in the mode of IP.Because the communication standard of standard compliant IPV4, adopted the IP address of standard, monitor equipment has unique absolute address identification code in whole network, become the absolute address identification terminal, any other equipment in network can be authorized to realize monitor equipment is carried out data read and data communication.
As mentioned above, just can realize the present invention preferably.
Claims (4)
1. the little water on-line monitoring of a new type digital SF6 gas device is characterized in that, mainly is made of CPU and the digitizing Temperature Humidity Sensor that links to each other with CPU respectively and absolute address identification terminal module.
2. the little water on-line monitoring of a kind of new type digital SF6 gas according to claim 1 device is characterized in that, also comprises the power module that all links to each other with CPU, digitizing Temperature Humidity Sensor and absolute address identification terminal module.
3. the little water on-line monitoring of a kind of new type digital SF6 gas according to claim 1 device is characterized in that described digitizing Temperature Humidity Sensor is integrated in the IC chip.
4. according to claim 1, the little water on-line monitoring of 2 or 3 described a kind of new type digital SF6 gases device, it is characterized in that described digitizing Temperature Humidity Sensor comprises temperature sensing unit and humidity sensor unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010248228 CN101949740A (en) | 2010-08-09 | 2010-08-09 | Novel all-digital SF6 gas and micro water online monitor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010248228 CN101949740A (en) | 2010-08-09 | 2010-08-09 | Novel all-digital SF6 gas and micro water online monitor |
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| CN101949740A true CN101949740A (en) | 2011-01-19 |
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| CN 201010248228 Pending CN101949740A (en) | 2010-08-09 | 2010-08-09 | Novel all-digital SF6 gas and micro water online monitor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157982A (en) * | 2011-03-31 | 2011-08-17 | 国电南瑞科技股份有限公司 | Intelligent terminal for power transformer |
| CN102393774A (en) * | 2011-09-29 | 2012-03-28 | 山西明佳电子技术有限公司 | Temperature and humidity monitoring terminal with adjustable communication port address |
| CN105136204A (en) * | 2015-09-11 | 2015-12-09 | 四川菲博斯科技有限责任公司 | On-line monitoring assessment system for micro-water content in transformer oil |
| CN105743605A (en) * | 2014-12-08 | 2016-07-06 | 深圳市科曼医疗设备有限公司 | Parameter module recognition method and device |
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| CN2651750Y (en) * | 2003-11-04 | 2004-10-27 | 常州市武进五菱柴油机有限公司 | Low-concentration SF gas realtime checker |
| CN101464671A (en) * | 2007-12-20 | 2009-06-24 | 郑召兴 | Apparatus and method for monitoring sulfur hexafluoride gas and its derived gas |
| CN101551277A (en) * | 2009-05-18 | 2009-10-07 | 胡业林 | Array type multipoint temperature monitoring system |
| CN101782614A (en) * | 2010-02-20 | 2010-07-21 | 中国科学院电工研究所 | Device for detecting breakdown of sulfur hexafluoride gas-insulated electrical equipment |
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2010
- 2010-08-09 CN CN 201010248228 patent/CN101949740A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2651750Y (en) * | 2003-11-04 | 2004-10-27 | 常州市武进五菱柴油机有限公司 | Low-concentration SF gas realtime checker |
| CN101464671A (en) * | 2007-12-20 | 2009-06-24 | 郑召兴 | Apparatus and method for monitoring sulfur hexafluoride gas and its derived gas |
| CN101551277A (en) * | 2009-05-18 | 2009-10-07 | 胡业林 | Array type multipoint temperature monitoring system |
| CN101782614A (en) * | 2010-02-20 | 2010-07-21 | 中国科学院电工研究所 | Device for detecting breakdown of sulfur hexafluoride gas-insulated electrical equipment |
Non-Patent Citations (1)
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| 《电子测量技术》 20100430 张宁等 SF6断路器微水在线监测系统的研究与设计 第33卷, 第4期 2 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157982A (en) * | 2011-03-31 | 2011-08-17 | 国电南瑞科技股份有限公司 | Intelligent terminal for power transformer |
| CN102393774A (en) * | 2011-09-29 | 2012-03-28 | 山西明佳电子技术有限公司 | Temperature and humidity monitoring terminal with adjustable communication port address |
| CN102393774B (en) * | 2011-09-29 | 2014-06-18 | 山西明佳电子技术有限公司 | Temperature and humidity monitoring terminal with adjustable communication port address |
| CN105743605A (en) * | 2014-12-08 | 2016-07-06 | 深圳市科曼医疗设备有限公司 | Parameter module recognition method and device |
| CN105743605B (en) * | 2014-12-08 | 2019-05-03 | 深圳市科曼医疗设备有限公司 | The recognition methods of parameter module and device |
| CN105136204A (en) * | 2015-09-11 | 2015-12-09 | 四川菲博斯科技有限责任公司 | On-line monitoring assessment system for micro-water content in transformer oil |
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Application publication date: 20110119 |