CN201096542Y - Optical fibre type temperature on-line monitoring system - Google Patents
Optical fibre type temperature on-line monitoring system Download PDFInfo
- Publication number
- CN201096542Y CN201096542Y CNU2007201559884U CN200720155988U CN201096542Y CN 201096542 Y CN201096542 Y CN 201096542Y CN U2007201559884 U CNU2007201559884 U CN U2007201559884U CN 200720155988 U CN200720155988 U CN 200720155988U CN 201096542 Y CN201096542 Y CN 201096542Y
- Authority
- CN
- China
- Prior art keywords
- temperature
- alarm unit
- display alarm
- optical fiber
- monitoring system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Alarm Systems (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model belongs to the electric power equipment online monitoring technical field, in particular relates to an optical fiber temperature online monitoring system of the high voltage switch cabinet. The structure of the system includes a plurality of high voltage contact temperature-measuring units and a single display alarm unit; the high voltage contact temperature-measuring unit comprises a semiconductor temperature sensor which is connected with the measured point directly; the output end of the semiconductor temperature sensor is connected with the input end of a microprocessor whose output end is connected with an optical signal modulation module which is connected with an optical demodulation module of the display alarm unit; the output end of the optical demodulation module is connected with the interface wire of a singlechip of the display alarm unit; the singlechip is connected with a remote computer which is equipped with a data communication management software. The optical fiber temperature online monitoring system has the advantages that the integral performance of the system is good; the temperature measurement of the temperature-measuring device is accurate; the system has high electric safety and reliability; the data management system has comprehensive data management function towards the historical temperature data.
Description
Technical field
The utility model belongs to power equipment on-line temperature monitoring technical field, is specifically related to a kind of high-tension switch cabinet optical fiber type temperature online monitoring system.
Background technology
The high-tension switch cabinet of generating plant, transformer station is important electric equipment.In the long-time running process of high-tension switch cabinet, because positions such as contact in the switch cubicle and bus row junction generate heat greatly because of aging or contact resistance become, cause contact or busbar junction temperature to raise, make contact resistance further become big thereby produce more heat, form vicious cycle and finally cause fire failure to cause fault.Overheated and the major accident such as the fire that causes and large-area power-cuts of too much cause switch cubicle just once took place in power plant and transformer station in recent years.Therefore predict the running status of switch cubicle in advance, confirm the switch cubicle temperature in allowed limits, become and take precautions against the key that this type of accident produces.
Contact running temperature in the high-tension switch cabinet detects has certain degree of difficulty, mainly is that common temp measuring method can not use because of the high pressure in the cabinet, the narrow and small and closed state in space.As common temp measuring method, mainly adopt thermopair, thermal resistance equitemperature sensing element to realize that these temperature sensors all need the plain conductor transmission signals, owing to can't guarantee insulating property, thus the contact temperature that can't be applied in the high-tension switch cabinet is measured.And adopt infrared non-contact temperature measuring, and be subject to environment and electromagnetic interference (EMI) on every side, and need manually-operated, realize that the cost of on-line monitoring is too high, realize that difficulty is big.
Though existing high-tension switch cabinet optical fiber temperature-measurement device can be finished in-cabinet temperature and measure, but its function singleness can't carry out the preservation of historical data and have access to, do not possess the remote data transmission function yet, therefore can't finish the Centralized Monitoring of many temperature measuring equipments.
Summary of the invention
The purpose of this utility model is to provide a kind of on-line measurement of high-tension switch cabinet inner contact or busbar line temperature and optical fiber type temperature online monitoring system of data transmission, demonstration and preservation realized at the defective of existing high-tension switch cabinet temperature measuring equipment existence.
The technical solution of the utility model is as follows: a kind of optical fiber type temperature online monitoring system, comprise a plurality of high-voltage contact temperature measuring unit and single display alarm unit, the high-voltage contact temperature measuring unit comprises the semiconductor temperature sensor that directly contacts with the measured point, the output terminal of semiconductor temperature sensor is connected with the input end of microprocessor, the output terminal of microprocessor connects the light signal modulation module, the light signal modulation module links to each other with the optical modulator module of display alarm unit, the output terminal of optical modulator module is connected with single-chip microcomputer mouth line in the display alarm unit, and single-chip microcomputer is connected with the far-end computer that the data communication management software is housed.
Aforesaid optical fiber type temperature online monitoring system wherein, is connected by multimode optical fiber between the optical modulator module of light signal modulation module and display alarm unit.
Aforesaid optical fiber type temperature online monitoring system, wherein, the single-chip microcomputer of display alarm unit adopts RS485 serial communication interface and the far-end computer that the data communication management software is housed to form communication network.
The beneficial effects of the utility model are as follows: monitoring system can be directly installed on temperature probe point for measuring temperature and carry out temperature survey continuously, use optical fiber to carry out data transmission, therefore measurement mechanism has high reliability and security, be not subjected to environment and electromagnetic interference (EMI) on every side, integral working is good, the cost performance height.Simultaneously, the data management software complete function of system, stable, can be good at solving the problem that existing thermometric instruments data can't preserve and safeguard.
Description of drawings
Fig. 1 is a fundamental diagram of the present utility model.
Embodiment
As shown in Figure 1, the optical fiber type temperature online monitoring system comprises a plurality of high-voltage contact temperature measuring unit and single display alarm unit, the structure of each temperature measuring unit is identical, forms by semiconductor temperature sensor, single-chip microcomputer, light signal modulation module and battery two parts.Battery provides working power for other all components and parts in the unit, and semiconductor temperature sensor directly contacts with the measured point.The I/O mouth (input end) of microprocessor is connected with the output terminal of semiconductor temperature sensor and directly reads temperature value, another I/O mouth (output terminal) of microprocessor connects the light signal modulation module, and temperature measurement data carries out arriving temperature display unit by Optical Fiber Transmission after the optical modulation.The light signal modulation module links to each other by multimode optical fiber with the optical modulator module of display alarm unit, the output terminal of optical modulator module is connected with single-chip microcomputer mouth line in the display alarm unit, single-chip microcomputer is connected with the far-end computer that the data communication management software is housed, and forms communication network by RS485 serial communication interface and far-end computer.Temperature display unit has light signal demodulation, RS485 communication and LCD Presentation Function, shows by LCD screen after can and being converted to temperature data to the light signal demodulation, can receive the querying command that the data management computing machine issues simultaneously, upload the data to computing machine.
The temperature sensor of described high-voltage contact temperature measuring unit uses DS18B20, and single-chip microcomputer is STC12LE5410, and the light signal modulation module adopts HFBR-1414T, and working power is used the battery of 3.6V.The power end of DS18B20 connects I/O mouth 12 pin of single-chip microcomputer, and 13 pin of STC12LE5410 connect the data terminal of DS18B20, and 7 pin of STC12LE5410 are connected with the input end of optical modulator module and import data to it through resistance.
Described display alarm unit microprocessor is used the AT89S8252 chip, and the light signal demodulation module adopts HFBR-2412R, and the RS485 communication chip adopts 65LBC184.The P2 mouth of microprocessor links to each other with LCD display, and the P0 mouth is connected with the output terminal of optical fiber demodulation module, and RXD, TXD are connected with the communication chip corresponding end, I/O mouth 2 pin control end taking alarm.The reset terminal of the termination processor that resets of hardware monitoring chip MAX1232.
Data management system is that a cover runs on the application software on the computing machine, can receive the communication data and the demonstration in real time that are sent by many temperature measuring equipments, and regularly temperature value is kept in the database.Operations such as data management software can be inquired about the temperature data after preserving, deletes, reparation.Application software adopts the C Plus Plus establishment, and database management tools is SQLSERVER 2000.
The principle of work of optical fiber type on-line monitoring system is: the temperature measurement unit of temperature measuring equipment directly is installed on the high-tension switch cabinet hot-line connector, make the direct contact measurement point of temperature sensor, this unit is owing to adopted little power consumption technology, therefore can adopt battery as power supply, temperature data delivers to that optical modulator module converts light signal to after display unit is delivered in the fiber medium transmission.Optical fiber has fabulous electrical insulation properties, can bend to different shapes as required in switch, and light signal is not subjected to the interference of environment and peripheral electromagnetic field.Light signal is delivered to the display unit of device, temperature value is shown after being reduced into electric signal by the optical modulator module, thereby realizes the on-line measurement of high-voltage contact.Simultaneously display unit surpasses permissible value to temperature and judges, can send alerting signal by warning circuit in case find that temperature is too high.Display unit can be sent to computing machine by the RS485 network with data.Utilize the data management software of computing machine, the data in real time of uploading of many temperature measuring equipments at scene can be shown and preserved with the form of database file, can the remote control temperature measuring equipment remove and report to the police.
Claims (3)
1. optical fiber type temperature online monitoring system, it is characterized in that: comprise a plurality of high-voltage contact temperature measuring unit and single display alarm unit, the high-voltage contact temperature measuring unit comprises the semiconductor temperature sensor that directly contacts with the measured point, the output terminal of semiconductor temperature sensor is connected with the input end of microprocessor, the output terminal of microprocessor connects the light signal modulation module, the light signal modulation module links to each other with the optical modulator module of display alarm unit, the output terminal of optical modulator module is connected with single-chip microcomputer mouth line in the display alarm unit, and single-chip microcomputer is connected with the far-end computer that the data communication management software is housed.
2. optical fiber type temperature online monitoring system as claimed in claim 1 is characterized in that: be connected by multimode optical fiber between the optical modulator module of light signal modulation module and display alarm unit.
3. optical fiber type temperature online monitoring system as claimed in claim 1 or 2 is characterized in that: the single-chip microcomputer of display alarm unit adopts RS485 serial communication interface and the far-end computer that the data communication management software is housed to form communication network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201559884U CN201096542Y (en) | 2007-07-05 | 2007-07-05 | Optical fibre type temperature on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201559884U CN201096542Y (en) | 2007-07-05 | 2007-07-05 | Optical fibre type temperature on-line monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201096542Y true CN201096542Y (en) | 2008-08-06 |
Family
ID=39923595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201559884U Expired - Fee Related CN201096542Y (en) | 2007-07-05 | 2007-07-05 | Optical fibre type temperature on-line monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201096542Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930869A (en) * | 2010-08-17 | 2010-12-29 | 安徽鑫龙电器股份有限公司 | High-voltage vacuum breaker with contact temperature measurement function and temperature measurement method thereof |
| CN102288310A (en) * | 2011-07-11 | 2011-12-21 | 北京合纵科技股份有限公司 | Device for measuring temperature of cable joint |
| CN102412090A (en) * | 2011-08-05 | 2012-04-11 | 安徽鑫龙电器股份有限公司 | Breaker for online monitoring of vacuum degree of vacuum arc extinguish chamber and monitoring method thereof |
| CN102636273A (en) * | 2012-03-25 | 2012-08-15 | 河南省电力公司安阳供电公司 | Switch node temperature monitoring system of distribution room |
| CN103487166A (en) * | 2013-09-30 | 2014-01-01 | 常熟市明阳电器安装工程有限公司 | Electric device temperature monitoring system |
| CN103728040A (en) * | 2013-11-15 | 2014-04-16 | 成都市宏山科技有限公司 | Device for detecting temperature of inside of switch cabinet on basis of thermal couple |
| CN106197724A (en) * | 2016-07-02 | 2016-12-07 | 江苏江城电气有限公司 | A kind of high pressure enclosed busbar temperature on-line monitoring device based on Fibre Optical Sensor |
-
2007
- 2007-07-05 CN CNU2007201559884U patent/CN201096542Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930869A (en) * | 2010-08-17 | 2010-12-29 | 安徽鑫龙电器股份有限公司 | High-voltage vacuum breaker with contact temperature measurement function and temperature measurement method thereof |
| CN102288310A (en) * | 2011-07-11 | 2011-12-21 | 北京合纵科技股份有限公司 | Device for measuring temperature of cable joint |
| CN102412090A (en) * | 2011-08-05 | 2012-04-11 | 安徽鑫龙电器股份有限公司 | Breaker for online monitoring of vacuum degree of vacuum arc extinguish chamber and monitoring method thereof |
| CN102636273A (en) * | 2012-03-25 | 2012-08-15 | 河南省电力公司安阳供电公司 | Switch node temperature monitoring system of distribution room |
| CN103487166A (en) * | 2013-09-30 | 2014-01-01 | 常熟市明阳电器安装工程有限公司 | Electric device temperature monitoring system |
| CN103728040A (en) * | 2013-11-15 | 2014-04-16 | 成都市宏山科技有限公司 | Device for detecting temperature of inside of switch cabinet on basis of thermal couple |
| CN106197724A (en) * | 2016-07-02 | 2016-12-07 | 江苏江城电气有限公司 | A kind of high pressure enclosed busbar temperature on-line monitoring device based on Fibre Optical Sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201096542Y (en) | Optical fibre type temperature on-line monitoring system | |
| CN104597398B (en) | Intelligent plug-pull type breaker and its monitoring early-warning system | |
| CN204854975U (en) | Cubical switchboard temperature on -line monitoring system | |
| CN202648804U (en) | High voltage contact and bus on-line temperature measuring device | |
| CN203465023U (en) | Power cable insulation fault on-line monitoring system based on single-chip microcomputer | |
| CN103398740A (en) | Real-time on-line monitoring device for monitoring abnormal operation of switch cabinet | |
| CN203745860U (en) | Ring main unit cable joint temperature monitoring system | |
| CN203102580U (en) | Wireless temperature measuring system | |
| CN107702819A (en) | A kind of temperature monitoring system based on fiber Bragg grating sensor | |
| CN207502077U (en) | Cable temperature monitoring device | |
| CN202350949U (en) | Switch cabinet fiber grating temperature measuring system | |
| CN202562652U (en) | Online temperature measurement and alarm device of transformer substation high-tension switch cabinet | |
| CN202562638U (en) | Hose clamp type on-line temperature rise monitoring device | |
| CN204269234U (en) | A kind of temperature measurement on-line device for high-voltage switch cabinet of transformer substation | |
| CN208968682U (en) | A kind of wireless temperature measuring device of high-tension cable | |
| CN204373809U (en) | A kind of watchband type passive and wireless temperature measurement on-line device | |
| CN203191085U (en) | High voltage equipment temperature monitoring system used for electric power inspection | |
| CN203629690U (en) | ZigBee-based high-tension switch cabinet wireless temperature measurement system | |
| CN203629700U (en) | Wireless temperature measuring device | |
| CN207379630U (en) | A kind of temperature monitoring system based on fiber Bragg grating sensor | |
| CN203908587U (en) | Optical cable splice box temperature and humidity wireless detecting system | |
| CN202189111U (en) | Wireless temperature measurement system of high voltage switch contacts | |
| CN203465012U (en) | Passive, wireless and hierarchical-distribution power transformation switch cabinet temperature measurement online monitoring system | |
| CN203534728U (en) | Safety monitoring system of power supply distribution unit sockets | |
| CN109916523A (en) | A kind of switchgear cable vault heating accident monitors system and method |
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: 20080806 |