CN202210333U - Optical fiber temperature sensing system of fire hazard monitoring system - Google Patents
Optical fiber temperature sensing system of fire hazard monitoring system Download PDFInfo
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- CN202210333U CN202210333U CN2011203509161U CN201120350916U CN202210333U CN 202210333 U CN202210333 U CN 202210333U CN 2011203509161 U CN2011203509161 U CN 2011203509161U CN 201120350916 U CN201120350916 U CN 201120350916U CN 202210333 U CN202210333 U CN 202210333U
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- temperature sensing
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Abstract
The present utility model relates to an optical fiber temperature sensing system of a fire hazard monitoring system. The optical fiber temperature sensing system comprises a temperature sensor, a one-chip microcomputer control circuit, an optical fiber modulator, an optical fiber demodulator connected with the optical fiber modulator through an optical fiber, a data concentrator, and a central control unit for judging whether measured temperature exceeds a preset scope or not, and the central control unit is connected with a host computer through a communication interface. When in work, an optical fiber type temperature-measuring module is used for converting temperature signals measured by the temperature sensor to optical signals and transmitting to an optical fiber temperature-measuring terminal host through optical fibers, and the host computer is used for monitoring temperature status of various monitoring points remotely. As optical fiber transmission is adopted, the signals are not easy to be influenced by arc inside a high voltage switch cabinet and are not easy to be interfered, Moreover, the optical fibers are non-conducting, electric leakage of the high voltage switch cabinet is not easily caused, thus safety of the optical fiber temperature-measuring terminal host can be ensured, and the reliability is high. The optical fiber temperature sensing system can be used for supporting networking operation of 256 optical fiber temperature-measuring terminal hosts and the host computer, and the coverage area of temperature monitoring is enlarged.
Description
Technical field
The utility model relates to a kind of fiber temperature sensing system of fire monitoring system.
Background technology
The reason of fire of electrical fire mainly contains following several kinds: 1, electric leakage; 2, short circuit; 3, overload.The electrical fire that is finally caused by the power equipment heating is all accounting for the ratio more than 60% in the electrical fire; In addition, the leakage current fault that is caused by impaired, the humid environment of insulation etc. (and caused by the leakage current electric spark) is occupied the ratio more than 10% again in the cause of electrical fire.
When on the impaired circuit of insulation and the leakage current to 300 that produces～during 500mA, breakage will produce the spark discharge phenomenon with contiguous earth conductor.At this moment, combustible and fire goods around the electric spark that discharges can ignite easily, thereby the fire failure of causing.Even, there is not inflammable, combustible existence on every side, the impaired area that the spark discharge that leakage current produces can be quickened to insulate equally makes the damaged points rapid charing of insulation course on every side to become inflammable object, and is on fire by spark ignition again.
Temperature-sensing system complex structure of the prior art, transmission range are shorter, and transmission course is subject to disturb, so its reliability is lower.Because measurand is heavy current installation such as high-tension switch cabinet often, how to guarantee contact temperature detects in the high-tension switch cabinet security and reliability, be those skilled in the art's technical barrier to be solved.
The utility model content
The fiber temperature sensing system of the fire monitoring system that the utility model technical matters to be solved provides that a kind of simple in structure, temperature data transmission is not subject to disturb, security and reliability are higher.
For solving the problems of the technologies described above; The utility model provides a kind of fiber temperature sensing system of fire monitoring system, comprising: the temperature signal output terminal of temperature sensor, the single chip machine controlling circuit that links to each other with the temperature signal output terminal of temperature sensor, single chip machine controlling circuit links to each other be used for digital signal convert into light signal fiber optic modulator, convert light signal into the optical fiber detuner of digital signal, the data concentrator that links to each other with the data output end of optical fiber detuner, being used to of linking to each other with the data output end of data concentrator through optical fiber being used for of linking to each other with the light signal output end of fiber optic modulator and judge that measured temperature is whether above the central control unit of preset range; The temperature signal output terminal of central control unit links to each other with the host computer that is used for remote monitoring through communication interface.
The utlity model has positive effect: in (1) the utility model, the optical fiber type temperature measurement module temperature signal that temperature sensor is measured converts light signal into through Optical Fiber Transmission to optical fiber temperature-measurement end host.Owing to adopt Optical Fiber Transmission therebetween, be not subject to the influence of the electric arc etc. in the high-tension switch cabinet, so be not subject to disturb.In addition, optical fiber itself is non-conductive, is difficult for causing the high-tension switch cabinet electric leakage, thereby has guaranteed the safety of optical fiber temperature-measurement end host, so its reliability is higher.(2) this fiber temperature sensing system can continuous monitoring the running temperature of equipment contact, can confirm the degree of superheat of joint, contact, when overtemperature takes place, sending the indication of reporting to the police.Temperature sensor is installed on the charged position in the equipment (like the interface up and down of isolating switch and disconnecting link); The digital panel meter of monitor main frame demonstrates the temperature value of each charged contact; And can temperature value be passed to host computer through the RS-485 interface and be for further processing, realize the concentrated monitoring of device temperature.
Description of drawings
Fig. 1 is the structured flowchart of fiber temperature sensing system of the fire monitoring system of embodiment 1.
Embodiment
See Fig. 1, the fiber temperature sensing system of the fire monitoring system of present embodiment comprises: the temperature signal output terminal of temperature sensor 1, the single chip machine controlling circuit 2 that links to each other with the temperature signal output terminal of temperature sensor 1, single chip machine controlling circuit 2 links to each other be used for digital signal convert into light signal fiber optic modulator 3, convert light signal into the optical fiber detuner 4 of digital signal, the data concentrator 5 that links to each other with the data output end of optical fiber detuner 4, being used to of linking to each other with the data output end of data concentrator 5 through optical fiber 11 being used for of linking to each other with the light signal output end of fiber optic modulator 3 and judge that measured temperature is whether above the central control unit 6 of preset range; The temperature signal output terminal of central control unit 6 links to each other with the host computer that is used for remote monitoring 10 through communication interface 8.
The temperature of central control unit 6 shows that output terminal is connected with the display circuit 9 that is used for real-time displays temperature value.
The alarm signal output ends of said central control unit 6 is connected with and is used for the warning output circuit 7 of reporting to the police when temperature surpasses preset range recording.Said temperature sensor 1 is located on the interface up and down or the charged contact in the switch cubicle in interface up and down, handpiece Water Chilling Units loop of interface up and down, the blower fan circuit breaker of interface up and down, the three stage load service entrance switch isolating switchs of switchgear building incoming line cabinet isolating switch.Said optical fiber 11 is for having the multimode optical fiber of protective sleeve.
Said communication interface 8 is RS-485 industrial bus interface or RJ-45 interface.
Said temperature sensor 1, single chip machine controlling circuit 2 and fiber optic modulator 3 constitute the optical fiber type temperature measurement modules; Said optical fiber detuner 4, data concentrator 5, central control unit 6, warning output circuit 7, communication interface 8 and display circuit 9 constitute the optical fiber temperature-measurement end hosts; 1-6 optical fiber type temperature measurement module links to each other through the multimode optical fiber with protective sleeve with 1 optical fiber temperature-measurement end host.
Claims (1)
1. the fiber temperature sensing system of a fire monitoring system is characterized in that comprising: the temperature signal output terminal of temperature sensor (1), the single chip machine controlling circuit (2) that links to each other with the temperature signal output terminal of temperature sensor (1), single chip machine controlling circuit (2) links to each other be used for digital signal convert into light signal fiber optic modulator (3), convert light signal into the optical fiber detuner (4) of digital signal, the data concentrator (5) that links to each other with the data output end of optical fiber detuner (4), being used to of linking to each other with the data output end of data concentrator (5) through optical fiber (11) being used for of linking to each other with the light signal output end of fiber optic modulator (3) and judge that measured temperature is whether above the central control unit (6) of preset range; The temperature signal output terminal of central control unit (6) links to each other with the host computer that is used for remote monitoring (10) through communication interface (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203509161U CN202210333U (en) | 2011-09-19 | 2011-09-19 | Optical fiber temperature sensing system of fire hazard monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203509161U CN202210333U (en) | 2011-09-19 | 2011-09-19 | Optical fiber temperature sensing system of fire hazard monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202210333U true CN202210333U (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203509161U Expired - Fee Related CN202210333U (en) | 2011-09-19 | 2011-09-19 | Optical fiber temperature sensing system of fire hazard monitoring system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202210333U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208163A (en) * | 2013-04-09 | 2013-07-17 | 西安博康电子有限公司 | Optical fiber temperature measuring technology-based security monitoring system |
| 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 |
| CN103712713A (en) * | 2013-12-16 | 2014-04-09 | 上海华魏光纤传感技术有限公司 | Optical fiber temperature measurement host |
| CN106502293A (en) * | 2016-12-27 | 2017-03-15 | 安徽理工大学 | A kind of windowfree workshop of enterprise intelligent management apapratus |
-
2011
- 2011-09-19 CN CN2011203509161U patent/CN202210333U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208163A (en) * | 2013-04-09 | 2013-07-17 | 西安博康电子有限公司 | Optical fiber temperature measuring technology-based security monitoring system |
| CN103208163B (en) * | 2013-04-09 | 2015-09-16 | 西安博康电子有限公司 | A kind of safety monitoring system based on Fiber Optic Pyrometer |
| 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 |
| CN103712713A (en) * | 2013-12-16 | 2014-04-09 | 上海华魏光纤传感技术有限公司 | Optical fiber temperature measurement host |
| CN103712713B (en) * | 2013-12-16 | 2017-01-04 | 江西华神智能物联技术有限公司 | Optical fiber temperature measurement host |
| CN106502293A (en) * | 2016-12-27 | 2017-03-15 | 安徽理工大学 | A kind of windowfree workshop of enterprise intelligent management apapratus |
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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: 20120502 Termination date: 20120919 |