CN105758552B - A remote optical fiber cable temperature detection and alarm method - Google Patents
A remote optical fiber cable temperature detection and alarm method Download PDFInfo
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- CN105758552B CN105758552B CN201610111973.1A CN201610111973A CN105758552B CN 105758552 B CN105758552 B CN 105758552B CN 201610111973 A CN201610111973 A CN 201610111973A CN 105758552 B CN105758552 B CN 105758552B
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- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
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Abstract
本发明提供的一种远程光纤电缆温度检测报警系统和方法，如果被监测电缆发生故障，故障点温度升高，则会导致光信号在感温光缆的传输过程中衰耗过大，最终导致在感温光缆的光信号输出端采集的收光光功率非正常大幅度下降，通过监测发光光功率和收光光功率的数据情况，来判断被监测电缆是否存在故障，对激光器、感光信件及信号处理技术要求较低，后期维护技术简单，有效寿命长，监测距离长且成本较低，便于推广使用。
The invention provides a remote optical fiber cable temperature detection and alarm system and method. If the monitored cable fails and the temperature at the fault point rises, the optical signal will be attenuated too much during the transmission process of the temperature-sensing optical cable, which will eventually lead to The received optical power collected by the optical signal output end of the temperature-sensing optical cable drops abnormally and greatly. By monitoring the data of the emitting optical power and the received optical power, it is judged whether the monitored cable is faulty. The processing technology requirements are low, the post-maintenance technology is simple, the effective life is long, the monitoring distance is long and the cost is low, which is easy to promote and use.
Description
The application is the divisional application application No. is 201410322402.3；
The applying date of original application are as follows: on July 8th, 2014；
The denomination of invention of original application are as follows: remote fiber cable temperature detects alarm system and method.
Technical field
The present invention relates to power cable thermometry fields, specifically, the present invention relates to a kind of remote fiber cable temperature
Degree detection alarm system and method.
Background technique
With the progress of the integrated planning of China city and construction, urban inner overhead transmission line is gradually by power cable institute's generation
It replaces.Power cable is substantially laid by way of direct-burried, trombone slide or pipeline, and national grid 5OOKV cable is whole
It is laid using tunnel, the main system of laying of 66KV-220KV cable is tunnel and comb, the main system of laying of 10KV-35KV cable
For comb and direct-burried, this, which is just resulted in, is difficult to carry out intuitive walkaround inspection to the operating condition of power cable, to emerged in operation
Failure be also difficult to monitor and position.Power cable is general before breaking down and in failure all can be along with local temperature
Raising, temperature be react power cable operating condition important parameter, therefore to the temperature monitoring of power cable be monitoring electricity
Power cable operating condition ensures the important means of power cable safe operation.
Temperature of Power Cables monitoring method commonly used in the prior art has: temperature sensing cable formula temp measuring system, mainly by temperature-sensitive
Cable is laid on tested power cable surface, and when temperature is more than critical temperature value, temperature sensing cable short circuit issues temperature alarming letter
Breath, but its monitoring distance is short, and vulnerable to electromagnetic interference, the work of system installation maintenance is inconvenient, and equipment is easy to damage；Temperature sensor is surveyed
Warm system is mainly needing the power cable position monitored to lay the temperature sensors such as thermistor, is passing through temperature sensor pair
The temperature of power cable carries out branch monitoring, but each temperature sensor needs separate cabling within the system, and wiring is complicated, and
It is easily affected by environment, and function needs often verification, and system link is more, and later maintenance amount is big；Cable duct temperature smog alarm system
System, mainly lays temperature and smoke alarm unit to emphasis monitoring section domain in cable duct, can only subtract after power cable kindling
Light accident range effect, cannot fundamentally prevent, reduce the generation of the fire incident of power cable；Rose in recent years based on
The temperature-measuring system of distributed fibers of Raman scattering uses optical fiber effectively to overcome electricity as the carrier of transmission and transducing signal
The interference of Force system medium-high magnetic field, uses optical fibers as the sensing and transmitting medium of temperature information, can measure along fiber lengths
Temperature change.Temperature-measuring system of distributed fibers based on Raman scattering needs to monitor reflected stokes light and instead this
Lentor light is simultaneously isolated, and since the signal strength of stokes light and anti-Stokes light is faint, results in this system pair
Laser, sensor devices and signal processing technology are more demanding, and later maintenance technology is complicated, and Acceptable life is relatively short,
Price is higher, and monitoring distance is short etc., greatly limits its popularization and use.
Summary of the invention
For this purpose, technical problem to be solved by the present invention lies in the existing distributed optical fiber temperature measurement system based on Raman scattering
It unites more demanding to laser, sensor devices and signal processing technology, later maintenance technology is complicated, and Acceptable life is relatively
Short, price is higher, and monitoring distance is short etc., greatly limits its popularization and use, to propose a kind of remote fiber cable temperature inspection
Observe and predict alert system and method.
In order to solve the above technical problems, technical scheme is as follows:
A kind of remote fiber cable temperature detection alarm system, comprising: temperature sensing optical cable, cable temperature alarm, server
And monitor terminal, in which:
Temperature sensing optical cable, the temperature sensing optical cable are laid jointly with monitored cable, and every temperature sensing optical cable that need to be monitored
The complete path channels with optical signal input and light signal output end are formed, the temperature sensing optical cable is increased with temperature and sent out
Raw fibre loss；
Cable temperature alarm includes:
Control module, for controlling optical module, communication module and alarm module；
Optical module, including light transmitting terminal and optical receiving end, the smooth transmitting terminal are connected with the optical signal input, receive
The instruction of the control module issues optical signal to the optical signal input；The optical receiving end and the light signal output end
It is connected, for receiving the optical signal of the light signal output end output；Meanwhile optical module receives the instruction of the control module and adopts
The optical signal that the luminous optical power and the light signal output end for collecting the optical signal issued to the optical signal input export
Light optical power is received, and the luminous optical power of acquisition and receipts light optical power data are sent to control module；
Communication module, the instruction for receiving the control module will be in the luminous optical power and the receipts light optical power data
Reach server；
Alarm module receives the alarm command that control module is sent, alarms monitored cable；
Working power, for powering to the cable temperature alarm；
Server stores and judges the luminous optical power and receive light optical power data, stores in the server
It states luminous optical power and the receipts light optical power data and whether sends the matching relationship of alarm command, if being unsatisfactory for preset alarm
Condition does not send alarm command then, if meeting preset alarm condition, alarm command is sent to monitor terminal and by described
Communication module is sent to the control module；
Monitor terminal receives the alarm command that server is sent, alarms monitored cable.
A kind of remote fiber cable temperature detects alarm system, and the temperature sensing optical cable and the monitored cable are flat
It goes and closely lays.
A kind of remote fiber cable temperature detects alarm system, the temperature sensing optical cable and the monitored cable root
It is repeatedly parallel back and forth according to demand and closely lay.
A kind of remote fiber cable temperature detects alarm system, further includes optical time domain reflectometer, for being supervised
After survey cable breaks down, the specific location to break down is determined.
A kind of remote fiber cable temperature detects alarm system, and the working power is that mutual inductor takes electricity and storage
Module is set to the periphery of monitored cable, for taking electricity from monitored cable and being transformed into direct current energy storage.
A kind of remote fiber cable temperature detects alarm system, and the communication module is wireless communication module.
A kind of remote fiber cable temperature detects alarm system, and the alarm module is sound and light alarm module, uses
In sending sound and light alarm signal.
A kind of remote fiber cable temperature detection alarm method, includes the following steps:
S01: temperature sensing optical cable and monitored cable are laid jointly, and every temperature sensing optical cable formation that need to be monitored has
The complete path channels of optical signal input and light signal output end, the temperature sensing optical cable increase with temperature and optical fiber occur and damages
Consumption；
S02: the interval predetermined time issues optical signal to the optical signal input, and the optical signal is through the temperature sensing optical cable
After transmission, exported in the light signal output end；Acquire the luminous optical power of the optical signal issued to the optical signal input
With the receipts light optical power of the optical signal of light signal output end output；
S03: the collected luminous optical power and the receipts light optical power data are uploaded to server；
S04: server stores and judges the luminous optical power and receives light optical power data, is stored in the server
The luminous optical power and the receipts light optical power data with whether send the matching relationship of alarm command, if being unsatisfactory for default report
Alert condition, then do not send alarm command, if meeting preset alarm condition, alarm command be sent to monitor terminal and cable temperature
Spend the control module of alarm；
S05: monitor terminal receives the alarm command that the server is sent, and alarms monitored cable；Meanwhile it reporting
Alarm device receives the alarm command that the control module is sent, and alarms monitored cable.
A kind of remote fiber cable temperature detects alarm method, temperature sensing optical cable described in the step S01 and institute
It states monitored cable in parallel and closely lays.
A kind of remote fiber cable temperature detects alarm method, the temperature sensing optical cable and the monitored cable root
According to needing repeatedly parallel back and forth and closely lay.
A kind of remote fiber cable temperature detection alarm method further includes breakdown maintenance people after step S05
The step of member determines the specific location to break down using optical time domain reflectometer.
A kind of remote fiber cable temperature detects alarm method, further includes: passes through work electricity in above process
Source is powered.
A kind of remote fiber cable temperature detects alarm method, further includes being arranged mutually in the periphery of monitored cable
Sensor takes electricity from monitored cable and is transformed into the step of direct current energy storage is to as working power.
A kind of remote fiber cable temperature detects alarm method, and the step S03 is specially using wireless communication
Mode the collected luminous optical power and the receipts light optical power data are uploaded to server.
A kind of remote fiber cable temperature detects alarm method, which is characterized in that in the step S05, alarm
Device alarms to monitored cable by the way of sound-light alarm.
The above technical solution of the present invention has the following advantages over the prior art:
(1) a kind of remote fiber cable temperature detection alarm system and method provided by the invention, by temperature sensing optical cable and quilt
Monitoring cable is laid jointly, and every temperature sensing optical cable that need to be monitored is formed with optical signal input and light signal output end
Complete path channels；Optical signal is sent to the optical signal input of temperature sensing optical cable；It acquires defeated to the optical signal of temperature sensing optical cable
Enter the receipts light optical power of the optical signal of the luminous optical power for the optical signal that end issues and the light signal output end output of temperature sensing optical cable
And it is uploaded to server；Server stores and judges the luminous optical power and receives light optical power data, if meeting preset alarm
Condition, then be sent to monitor terminal and control module for alarm command, and alarm command is sent to warning device by control module；Prison
Control terminal and warning device receive alarm command, alarm monitored cable.A kind of remote fiber electricity provided by the invention
Cable temperature detecting alarm system and method, if monitored cable breaks down, fault point temperature is increased, then will lead to optical signal
Attenuation is excessive in the transmission process of temperature sensing optical cable, eventually leads to the receipts light light function in the light signal output end acquisition of temperature sensing optical cable
The improper sharp fall of rate, by monitoring the data cases of shine optical power and receipts light optical power, to judge monitored cable
Lower to the requirement of laser, photosensitive mail and signal processing technology with the presence or absence of failure, later maintenance is technically simple, service life
Life length, monitoring distance is long and cost is relatively low, convenient for promoting the use of.
(2) a kind of remote fiber cable temperature detection alarm system and method provided by the invention, by temperature sensing optical cable and quilt
Monitoring cable is parallel and closely lays, so that the temperature change of temperature sensing optical cable and the temperature change of monitored cable are protected as far as possible
It has held unanimously, ensure that the accuracy of monitoring, while facilitating later use optical time domain reflectometer and positioning to fault point；It will
Temperature sensing optical cable is repeatedly parallel back and forth as needed with monitored cable and closely lays, convenient for meeting the cable of different thicknesses degree
Monitoring requirements.
(3) a kind of remote fiber cable temperature detection alarm system and method provided by the invention, are monitoring cable hair
After raw failure, breakdown maintenance personnel carry optical time domain reflectometer, the specific location to break down are determined, so that the positioning of fault point
It is convenient and accurate, simultaneously as it is accurately fixed just to need to carry out using optical time domain reflectometer only after monitored cable breaks down
Position, has saved cost.
(4) a kind of remote fiber cable temperature detection alarm system and method provided by the invention, are supervised by being set to
The mutual inductor for surveying cable periphery takes electricity from monitored cable and is transformed into direct current energy storage to make as working power
With, be not necessarily to peripheral hardware working power, be convenient to use.
(5) a kind of remote fiber cable temperature detection alarm system and method provided by the invention, using wireless communication
Collected luminous optical power and receipts light optical power data are uploaded to server by mode, reduce the cumbersome of wiring.
(6) a kind of remote fiber cable temperature detection alarm system and method provided by the invention, using sound-light alarm
Mode alarms to monitored cable, so that alarm is more eye-catching and is easy to find, finds convenient for breakdown maintenance personnel.
Detailed description of the invention
In order to make the content of the present invention more clearly understood, it below according to specific embodiments of the present invention and combines
Attached drawing, the present invention is described in further detail, wherein
Fig. 1 is a kind of structural block diagram of remote fiber cable temperature detection alarm system of one embodiment of the invention；
Fig. 2 is a kind of cable fault positioning of remote fiber cable temperature detection alarm system of one embodiment of the invention
OTDR test chart；
Fig. 3 is a kind of normal cable OTDR of remote fiber cable temperature detection alarm system of one embodiment of the invention
Test curve；
Fig. 4 be one embodiment of the invention a kind of remote fiber cable temperature detection alarm system cable there are hot spots
OTDR test curve；
Fig. 5 is a kind of cable fault of remote fiber cable temperature detection alarm system of one embodiment of the invention and sense
The OTDR test curve of warm interruption of optical cables；
Fig. 6 is a kind of cable temperature alarm of remote fiber cable temperature detection alarm system of one embodiment of the invention
The structural block diagram of device；
Fig. 7 is a kind of flow chart of remote fiber cable temperature detection alarm method of one embodiment of the invention.
Specific embodiment
Embodiment 1
Shown in Figure 1, a kind of remote fiber cable temperature as one embodiment of the invention detects alarm system, packet
It includes: temperature sensing optical cable, cable temperature alarm, server and monitor terminal, in which:
Temperature sensing optical cable, the temperature sensing optical cable are laid jointly with monitored cable, and every temperature sensing optical cable that need to be monitored
The complete path channels with optical signal input and light signal output end are formed, the temperature sensing optical cable is increased with temperature and sent out
Raw fibre loss.Temperature sensing optical cable can be thermally sensitive special optical cable, be also possible to the common of additional temperature-sensitive physical device
Optical cable need to meet as the temperature rises, and temperature-sensitive physical device causes the curvature variation of optical cable, so as to cause optical cable hair
Raw bending loss.Temperature sensing optical cable can be placed outside monitored cable, can also be built in monitored cable, i.e., temperature sensing optical cable is in electricity
Power cable produce when be laid on inside cable, by by the optical fiber of the one or both ends of temperature sensing optical cable as desired into
Row welding then can form complete path channels in monitoring side.
Cable temperature alarm includes:
Control module, for controlling optical module, communication module and alarm module；Control module sends to optical module and instructs,
So that the optical mode block gap predetermined time issues optical signal, and acquire shine optical power and receipts light optical power data；Control module to
Communication module sends instruction, so that communication module completes the transmission of data；Control module sends to alarm module and instructs, so that report
Alert module alarms to monitored cable.
Optical module, including light transmitting terminal and optical receiving end, the smooth transmitting terminal are connected with the optical signal input, receive
The instruction of the control module issues optical signal to the optical signal input；The optical receiving end and the light signal output end
It is connected, for receiving the optical signal of the light signal output end output；Meanwhile optical module receives the instruction of the control module and adopts
The optical signal that the luminous optical power and the light signal output end for collecting the optical signal issued to the optical signal input export
Light optical power is received, and the luminous optical power of acquisition and receipts light optical power data are sent to control module；
Communication module, the instruction for receiving the control module will be in the luminous optical power and the receipts light optical power data
Reach server；
Alarm module receives the alarm command of control module transmission, alarms monitored cable；
Working power, for powering to the cable temperature alarm.
Server stores and judges the luminous optical power and receive light optical power data, stores in the server
It states luminous optical power and the receipts light optical power data and whether sends the matching relationship of alarm command, if being unsatisfactory for preset alarm
Condition does not send alarm command then, if meeting preset alarm condition, alarm command is sent to monitor terminal and by described
Communication module is sent to the control module；
Monitor terminal receives the alarm command that server is sent, alarms monitored cable.Monitor terminal can be
The equipment such as mobile phone or display screen, for receiving the alarm command of server transmission, whenever and wherever possible convenient for cable monitoring personnel
Know the operating condition of monitored cable, while the information such as preset alert if can be written to server in monitor terminal.
A kind of remote fiber cable temperature provided by the invention detects alarm system, if monitored cable breaks down,
Fault point temperature increases, then it is excessive to will lead to optical signal attenuation in the transmission process of temperature sensing optical cable, eventually leads in temperature-sensitive light
The improper sharp fall of receipts light optical power of the light signal output end acquisition of cable, by monitoring shine optical power and receipts light light function
The data cases of rate, to judge monitored cable with the presence or absence of failure, to the requirement of laser, photosensitive mail and signal processing technology
Lower, later maintenance is technically simple, and useful life is long, and monitoring distance is long and cost is relatively low, convenient for promoting the use of.
Embodiment 2
A kind of remote fiber cable temperature as one embodiment of the invention detects alarm system, in above-described embodiment 1
On the basis of, the temperature sensing optical cable is parallel with the monitored cable and closely lays so that the temperature change of temperature sensing optical cable with
The temperature change of monitored cable maintains unanimously as far as possible, ensure that the accuracy of monitoring, while facilitating later use
Optical time domain reflectometer positions fault point.
The temperature sensing optical cable and the monitored cable are repeatedly parallel back and forth according to demand and closely lay, can be according to being supervised
The fineness and difference monitoring requirements of survey cable lay a plurality of temperature sensing optical cable in monitored cable surface in parallel, meet a variety of
Demand is easy to use.By at one end or both ends according to demand to different temperature sensing optical cables or with temperature sensing optical cable optical fiber carry out
Introduced details can then form a complete path channels.
Embodiment 3
A kind of remote fiber cable temperature as one embodiment of the invention detects alarm system, in above-described embodiment 2
On the basis of, it further include optical time domain reflectometer, for determining the specific position broken down after monitored cable breaks down
It sets.After monitoring that cable breaks down, breakdown maintenance personnel carry optical time domain reflectometer and reach scene, according to cable temperature report
The alarm signal that alert device issues, finds out suspected malfunctions cable, and the light of the temperature sensing optical cable laid jointly with suspected malfunctions cable is believed
The optical module of number input terminal and light signal output end and cable temperature alarm disconnects, while testing the light with optical time domain reflectometer
Road.
As a kind of specific implementation, as shown in Fig. 2, fixed for the cable fault that single-circuit temperature sensing optical cable lays mode
Position OTDR test chart, OTDR curve is as shown in figure 3, in B point, step decline is by a small margin in figure under typical non-failure conditions
Due to causing in Fig. 2 to the corresponding splice loss, splice attenuation in b point of two temperature sensing optical cables, C point peak value is since temperature sensing optical cable endpoint is to light
Fresnel reflection caused by；When d point breaks down cable in Fig. 2, causes when the temperature is excessively high, then will lead to the loss of the point
Increase, being reacted on OTDR curve is exactly a step decline by a relatively large margin, as shown in D point in Fig. 4 curve；When cable exists
D point in Fig. 2 is by external force destruction etc., and when temperature sensing optical cable being caused to interrupt, reaction is exactly that optical signal interrupts in OTDR curve, such as
In Fig. 5 curve shown in D point；So passing through the distance position for the available improper attenuation point of OTDR curve for being tested temperature sensing optical cable
Confidence breath, carries out judgement position of failure point in combination with cable length, then can find fault point and handle it.
A kind of remote fiber cable temperature provided in this embodiment detects alarm system so that the positioning of fault point it is convenient and
Accurately, simultaneously as just needing to be accurately positioned using optical time domain reflectometer only after monitored cable breaks down, section
About cost.
Embodiment 4
A kind of remote fiber cable temperature as one embodiment of the invention detects alarm system, any in above-mentioned 1-3
On the basis of embodiment, the working power is that mutual inductor takes electricity and memory module, is set to the periphery of monitored cable, is used for
Electricity is taken from monitored cable and is transformed into direct current energy storage.
As other implementations, the working power can be the condition that meets lead-acid accumulator or directly will be common
Alternating current is changed into the direct current of the condition of satisfaction, is able to achieve the function of the working power.
A kind of remote fiber cable temperature provided in this embodiment detects alarm system, without external device as work electricity
Source is easy to use.
Embodiment 5
A kind of remote fiber cable temperature as one embodiment of the invention detects alarm system, any in above-mentioned 1-4
On the basis of embodiment, the communication module is wireless communication module.
As specific implementation, the wireless communication module can be GPRS communication module, 3G communication module, 4G communication
Module etc., as long as being able to achieve luminous optical power that optical power acquisition module is sent and receiving light optical power data and be uploaded to service
The function of device.
A kind of remote fiber cable temperature provided in this embodiment detects alarm system, and module will acquire by wireless communication
To luminous optical power and receive light optical power data be uploaded to server, reduce the cumbersome of wiring.
Embodiment 6
A kind of remote fiber cable temperature as one embodiment of the invention detects alarm system, any in above-mentioned 1-5
On the basis of embodiment, the alarm module is sound and light alarm module, for issuing sound and light alarm signal, so that alarm is more awake
Mesh and it is easy to find, is found convenient for breakdown maintenance personnel.
Shown in Figure 6 as a kind of specifically used mode, the control module of the cable temperature alarm can be
MCU after the cable temperature alarm can also have key and display, key to reach scene for troubleshooting personnel, is closed
Alarm signal is closed, display can show that the real time temperature situation of current cable, the communication module include wire communication module
And wireless communication module, two kinds of communication modes are set, are easy to use.
Embodiment 7
Shown in Figure 7, a kind of remote fiber cable temperature as one embodiment of the invention detects alarm method, packet
Include following steps:
S01: temperature sensing optical cable and monitored cable are laid jointly, and every temperature sensing optical cable formation that need to be monitored has
The complete path channels of optical signal input and light signal output end, the temperature sensing optical cable increase with temperature and optical fiber occur and damages
Consumption.Temperature sensing optical cable can be thermally sensitive special optical cable, is also possible to the ordinary optical cable of additional temperature-sensitive physical device, need to expire
As the temperature rises, temperature-sensitive physical device causes the curvature variation of optical cable to foot, bends damage so as to cause the optical cable
Consumption.Temperature sensing optical cable can be placed outside monitored cable, can also be built in monitored cable, i.e. temperature sensing optical cable is raw in power cable
It has been laid on inside cable when production, by the way that the optical fiber of the one or both ends of temperature sensing optical cable is carried out welding as desired,
Then complete path channels can be formed in monitoring side.
S02: the interval predetermined time issues optical signal to the optical signal input, and the optical signal is through the temperature sensing optical cable
After transmission, exported in the light signal output end；Acquire the luminous optical power of the optical signal issued to the optical signal input
With the receipts light optical power of the optical signal of light signal output end output.
S03: the collected luminous optical power and the receipts light optical power data are uploaded to server.
S04: server stores and judges the luminous optical power and receives light optical power data, is stored in the server
The luminous optical power and the receipts light optical power data with whether send the matching relationship of alarm command, if being unsatisfactory for default report
Alert condition, then do not send alarm command, if meeting preset alarm condition, alarm command be sent to monitor terminal and cable temperature
Spend the control module of alarm.
S05: monitor terminal receives the alarm command that the server is sent, and alarms monitored cable；Meanwhile it reporting
Alarm device receives the alarm command that the control module is sent, and alarms monitored cable.
A kind of remote fiber cable temperature provided by the invention detects alarm method, if monitored cable breaks down,
Fault point temperature increases, then it is excessive to will lead to optical signal attenuation in the transmission process of temperature sensing optical cable, eventually leads in temperature-sensitive light
The improper sharp fall of receipts light optical power of the light signal output end acquisition of cable, by monitoring shine optical power and receipts light light function
The data cases of rate, to judge monitored cable with the presence or absence of failure, to the requirement of laser, photosensitive mail and signal processing technology
Lower, later maintenance is technically simple, and useful life is long, and monitoring distance is long and cost is relatively low, convenient for promoting the use of.
Embodiment 8
A kind of remote fiber cable temperature as one embodiment of the invention detects alarm method, in above-described embodiment 7
On the basis of, temperature sensing optical cable described in the step S01 is parallel with the monitored cable and closely lays, so that temperature sensing optical cable
Temperature change and the temperature change of monitored cable maintain as far as possible unanimously, ensure that the accuracy of monitoring, while just
Later use optical time domain reflectometer fault point is positioned.
The temperature sensing optical cable and the monitored cable are repeatedly parallel back and forth according to demand and closely lay, can be according to being supervised
The fineness and difference monitoring requirements of survey cable lay a plurality of temperature sensing optical cable in monitored cable surface in parallel, meet a variety of
Demand is easy to use.By at one end or both ends according to demand to different temperature sensing optical cables or with temperature sensing optical cable optical fiber carry out
Introduced details can then form a complete path channels.
Embodiment 9
A kind of remote fiber cable temperature as one embodiment of the invention detects alarm method, in above-described embodiment 8
On the basis of, it further include that breakdown maintenance personnel determine the specific position broken down using optical time domain reflectometer after step S05
The step of setting.After monitoring that cable breaks down, maintenance personal carries optical time domain reflectometer and reaches scene, according to cable temperature
The alarm signal that alarm issues, finds out suspected malfunctions cable, by the light of the temperature sensing optical cable laid jointly with suspected malfunctions cable
The optical module of signal input part and light signal output end and cable temperature alarm disconnects, while should with optical time domain reflectometer test
Optical path.
A kind of remote fiber cable temperature provided in this embodiment detects alarm method so that the positioning of fault point it is convenient and
Accurately, simultaneously as just needing to be accurately positioned using optical time domain reflectometer only after monitored cable breaks down, section
About cost.
Embodiment 10
A kind of remote fiber cable temperature as one embodiment of the invention detects alarm method, any in above-mentioned 7-9
On the basis of embodiment, it is powered by working power for the above equipment in this method.
Embodiment 11
A kind of remote fiber cable temperature as one embodiment of the invention detects alarm method, in above-described embodiment 10
On the basis of, further include that mutual inductor is set in the periphery of monitored cable, takes electricity from monitored cable and be transformed into direct current
The step of power storage is to as working power.
As other implementations, the working power can be the condition that meets lead-acid accumulator or directly will be common
Alternating current is changed into the direct current of the condition of satisfaction, is able to achieve the function of the working power.
A kind of remote fiber cable temperature provided in this embodiment detects alarm method, by the periphery of monitored cable
Mutual inductor is set, working power is provided, be not necessarily to external device, is easy to use.
Embodiment 12
A kind of remote fiber cable temperature as one embodiment of the invention detects alarm method, any in above-mentioned 7-11
On the basis of embodiment, the step S03 be specially using wireless communication by the way of by the collected luminous optical power with
The receipts light optical power data are uploaded to server.
As specific implementation, the communication can communicate for GPRS communication, 3G communication, 4G etc., as long as
It is able to achieve collected luminous optical power and receives light optical power data and be uploaded to the function of server.
A kind of remote fiber cable temperature provided in this embodiment detects alarm method, will adopt through wireless communication
The luminous optical power and receipts light optical power data collected is uploaded to server, reduces the cumbersome of wiring.
Embodiment 13
A kind of remote fiber cable temperature as one embodiment of the invention detects alarm method, any in above-mentioned 7-12
On the basis of embodiment, the step S05 specifically alarms to monitored cable by the way of sound-light alarm, such alarm
Method makes alarm more eye-catching and is easy to find, finds convenient for breakdown maintenance personnel.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610111973.1A CN105758552B (en) | 2014-07-08 | 2014-07-08 | A remote optical fiber cable temperature detection and alarm method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410322402.3A CN104142186B (en) | 2014-07-08 | 2014-07-08 | Remote optical fiber cable temperature detection and alarm system |
| CN201610111973.1A CN105758552B (en) | 2014-07-08 | 2014-07-08 | A remote optical fiber cable temperature detection and alarm method |
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| CN102928740A (en) * | 2012-11-06 | 2013-02-13 | 江苏省电力公司无锡供电公司 | Intelligent collection type fault diagnosis and on-line temperature measuring system |
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| KR101143223B1 (en) * | 2010-06-11 | 2012-05-18 | 삼현컴텍(주) | Apparatus for monitoring combustion of sole flue in coke oven and method for the same |
| CN201780648U (en) * | 2010-07-23 | 2011-03-30 | 北京交通大学 | Tunnel fire prevention monitoring system based on distributed fiber bragg grating sensor |
| US20120078534A1 (en) * | 2010-09-29 | 2012-03-29 | Selker John S | Use of Optical Fiber for Distributed Monitoring of Machinery |
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| CN102840928B (en) * | 2012-08-22 | 2015-11-04 | 中国电力科学研究院 | A kind of on-line temperature monitoring system for OPPC and monitoring method thereof |
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| CN201628593U (en) * | 2010-02-09 | 2010-11-10 | 上海波汇通信科技有限公司 | Data correction device of distributed optical fiber temperature sensing system |
| CN102928740A (en) * | 2012-11-06 | 2013-02-13 | 江苏省电力公司无锡供电公司 | Intelligent collection type fault diagnosis and on-line temperature measuring system |
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