CN103162859A - Optical-fiber temperature measurement system in sealed power-distribution cabinet - Google Patents
Optical-fiber temperature measurement system in sealed power-distribution cabinet Download PDFInfo
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- CN103162859A CN103162859A CN201110412339.9A CN201110412339A CN103162859A CN 103162859 A CN103162859 A CN 103162859A CN 201110412339 A CN201110412339 A CN 201110412339A CN 103162859 A CN103162859 A CN 103162859A
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Abstract
Disclosed is an optical-fiber temperature measurement system in a sealed power-distribution cabinet. The optical-fiber temperature measurement system comprises optical-fiber grating temperature sensors arranged in the power-distribution cabinet. The optical-fiber grating temperature sensors are connected with a two-way light separator through a six-way light separator. The two-way separator is connected with a light analyzer through an optical-fiber splice closure. The light analyzer is connected with a sound-light alarm, a displayer, a temperature alarm and an internet device respectively. Each monitoring point is provided with one of the optical-fiber grating temperature sensors. The six-way light separator is connected with the six temperature sensors respectively. The sealed power-distribution cabinet with six monitoring points is connected to a main communication optical cable of the optical-fiber splice closure through the two-way light separator, and is connected to the light analyzer through a communication optical cable. The temperature in the power-distribution cabinet is displayed on the displayer by the light analyzer. The optical-fiber temperature measurement system in the sealed power-distribution cabinet has the advantages of being strong in anti-inference capacity, accurate in measurement and stable in operation.
Description
Technical field
The invention belongs to enclosure-type power distribution cabinet temperature measurement technology field, to provide temp measuring system for detection of its inside each point temperature for the enclosure-type power distribution cabinet, and be presented at the temperature value of surveying on operator's computer or on mobile device by various communications analysis equipment, the handled easily person carries out remote monitoring, is specifically related to a kind of enclosure-type power distribution cabinet internal optical fiber temp measuring system.
Background technology
in enclosure-type high-low voltage electric power distribution cabinet apparatus field, requirement due to the working environment of enclosure-type power distribution cabinet, therefore the working environment of power distribution cabinet is airtight, along with various electronic devices and components and cable aging, important electrical equipment and the contact point between cable can be because dusts, loosening, oxidation and cause contact resistance excessive and generate heat, and abnormal heating position can cause various potential safety hazards, but the sealing requirements due to the enclosure-type power distribution cabinet, the way that the person's of patrolling and examining routine is patrolled and examined is difficult to observe inner working condition, and because the inside temperature measuring equipment of routine is all contactless temperature measuring device, and be easy to be subjected to the interference of the environmental factors such as various electromagnetism or power distribution cabinet internal temperature height, therefore it is inaccurate thermometric to appear, the shortcoming of job insecurity.Therefore the enclosure-type power distribution cabinet being carried out accurately online real-time thermometric has become a kind of industry needing to demand the problem of solution urgently.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the purpose of this invention is to provide a kind of enclosure-type power distribution cabinet internal optical fiber temp measuring system, have the advantages that antijamming capability is strong, measure accurate and working stability.
To achieve these goals, the technical solution used in the present invention is: a kind of enclosure-type power distribution cabinet internal optical fiber temp measuring system, include the fiber-optical grating temperature sensor that is arranged in power distribution cabinet, grating temperature sensor is connected with two road light separators by six road light separators, two road light separators are connected with the light analyser by optical cable connecting box, and the light analyser is connected with audible-visual annunciator, display, temperature alarm and internet device respectively.
Described smooth analyser is arranged in control center with audible-visual annunciator, display, temperature alarm and internet device respectively.
Described fiber-optical grating temperature sensor is arranged on six temperature monitoring points of inside of enclosure-type power distribution cabinet uniformly.
Compared with prior art, the invention has the beneficial effects as follows:
set temperature monitoring point in the enclosure-type power distribution cabinet, each monitoring point is measured by the direct temperature that fiber-optical grating temperature sensor carries out contact, optical branching device with light signal by multichannel spreads out of power distribution cabinet by the optical fiber continued access box on communications optical cable, be sent to by main communications optical cable on the light analyser of control center, calculated the real time temperature of enclosure-type power distribution cabinet each point by the light analyser, and temperature value is shown on display by various softwares, and carry out the operation of controlling alarm lamp by software, can also be by on internet device the far-end computer or mobile device that are reflected to the supervisor that the temperature conditions in power distribution cabinet is real-time, because fiber grating of the present invention adopts wideband light source as modulated light wave, using in pairs the fiber grating that is cascaded, a conduct is with reference to grating, one as measuring grating, poor half less than reflection bandwidth of the foveal reflex optical wavelength of two fiber gratings is because enclosure-type distribution in-cabinet temperature changes, therefore cause light wave cycle and wavelength to change, the changing value of accounting temperature based on this.Therefore, have the advantages that antijamming capability is strong, measure accurate and working stability.
Description of drawings
Fig. 1 is system principle schematic diagram of the present invention.
Embodiment
As shown in Figure 1, a kind of enclosure-type power distribution cabinet internal optical fiber temp measuring system, include the fiber-optical grating temperature sensor 2 that is arranged in power distribution cabinet 1, grating temperature sensor 2 is connected with two road light separators 4 by six road light separators 3, two road light separators 4 are connected with light analyser 6 by optical cable connecting box 5, and light analyser 6 is connected with audible-visual annunciator 7, display 8, temperature alarm 9 and internet device 10 respectively.
Described smooth analyser 6 is arranged in control center with audible-visual annunciator 7, display 8, temperature alarm 9 and internet device 10 respectively.
Described fiber-optical grating temperature sensor is arranged on six temperature monitoring points of inside of enclosure-type power distribution cabinet uniformly, especially there is the position of potential safety hazard, answer emphasis that the monitoring point is set, the fiber-optical grating temperature sensor of contact is arranged on it, because fiber-optical grating temperature sensor is to adopt the electromagnetism etc. of therefore not being subjected to of the principle work of light reflection to affect, can adopt contact temperature-measuring.
Described two road light separators, six road light separators can couple together the fiber-optical grating temperature sensor of enclosure-type power distribution cabinet each monitoring point by optical cable, then are being connected on the light analyser of control center by the main communications optical cable of optical fiber continued access box.
The variation that described smooth analyser receives the luminous power that begins to calculate each check point of comparison after the light signal of each monitoring point draws temperature results, and temperature value is shown on the main screen display of control center, and signal is passed to each panalarm comprise audible-visual annunciator, temperature alarms etc. can also pass to the temperature value of measuring by internet device on supervisor's computer of far-end or on mobile device by the internet.
fiber grating adopts wideband light source as modulated light wave, using in pairs the fiber grating that is cascaded, a conduct is with reference to grating, one as measuring grating, poor half less than reflection bandwidth of the foveal reflex optical wavelength of two fiber gratings is because enclosure-type distribution in-cabinet temperature changes, cause light wave cycle and wavelength to change, so two poor changing of raster center reflection wavelength, the power that has directly affected flyback light changes, by the measurement of returning to power to this a pair of grating, can obtain measuring the raster center reflection wavelength with respect to the variation of reference grating foveal reflex wavelength difference, therefore the changing value of accounting temperature based on this, as shown in Figure 2, the variation of fiber grating reflection wavelength and temperature variation linear graph.
Principle of work of the present invention is:
set temperature monitoring point in the enclosure-type power distribution cabinet, each monitoring point is measured by the direct temperature that fiber-optical grating temperature sensor carries out contact, optical branching device with light signal by multichannel spreads out of power distribution cabinet by the optical fiber continued access box on communications optical cable, be sent to by main communications optical cable on the light analyser of control center, calculated the real time temperature of enclosure-type power distribution cabinet each point by the light analyser, and temperature value is shown on display by various softwares, and carry out the operation of controlling alarm lamp by software, can also be by on internet device the far-end computer or mobile device that are reflected to the supervisor that the temperature conditions in power distribution cabinet is real-time.
The above; only the embodiment of the inventive method; be not that the present invention is imposed any restrictions, the variation of every any simple modification of above embodiment being done according to technical solution of the present invention, structure replaces all still belonging in the protection domain of the technology of the present invention system.
Claims (3)
1. enclosure-type power distribution cabinet internal optical fiber temp measuring system, it is characterized in that, include the fiber-optical grating temperature sensor (2) that is arranged in power distribution cabinet (1), grating temperature sensor (2) is connected with two road light separators (4) by six road light separators (3), two road light separators (4) are connected with light analyser (6) by optical cable connecting box (5), and light analyser (6) is connected with audible-visual annunciator (7), display (8), temperature alarm (9) and internet device (10) respectively.
2. a kind of enclosure-type power distribution cabinet internal optical fiber temp measuring system according to claim 1, it is characterized in that, described smooth analyser (6) is arranged in control center with audible-visual annunciator (7), display (8), temperature alarm (9) and internet device (10) respectively.
3. a kind of enclosure-type power distribution cabinet internal optical fiber temp measuring system according to claim 1, is characterized in that, described fiber-optical grating temperature sensor (2) is arranged on six temperature monitoring points of inside of enclosure-type power distribution cabinet (1) uniformly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110412339.9A CN103162859A (en) | 2011-12-13 | 2011-12-13 | Optical-fiber temperature measurement system in sealed power-distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110412339.9A CN103162859A (en) | 2011-12-13 | 2011-12-13 | Optical-fiber temperature measurement system in sealed power-distribution cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN103162859A true CN103162859A (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110412339.9A Pending CN103162859A (en) | 2011-12-13 | 2011-12-13 | Optical-fiber temperature measurement system in sealed power-distribution cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131843A (en) * | 2017-07-11 | 2017-09-05 | 中国矿业大学 | A kind of colliery cage guide damage deformation on-line monitoring system and method based on optical fiber grating sensing |
-
2011
- 2011-12-13 CN CN201110412339.9A patent/CN103162859A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131843A (en) * | 2017-07-11 | 2017-09-05 | 中国矿业大学 | A kind of colliery cage guide damage deformation on-line monitoring system and method based on optical fiber grating sensing |
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Application publication date: 20130619 |