CN203705083U - Optical fiber temperature measurement host - Google Patents
Optical fiber temperature measurement host Download PDFInfo
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- CN203705083U CN203705083U CN201320834808.0U CN201320834808U CN203705083U CN 203705083 U CN203705083 U CN 203705083U CN 201320834808 U CN201320834808 U CN 201320834808U CN 203705083 U CN203705083 U CN 203705083U
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- temperature
- optical fiber
- main frame
- light signal
- measurement main
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Abstract
The utility model provides an optical fiber temperature measurement host which adopts fiber-optic probes which are coupled to connectors in a high-tension switchgear, obtain corresponding temperature information of the connectors and store the temperature information in optical signals, and adopts an optical signal acquisition module to convert each optical signal to an electrical signal to sample temperature information. A display module is integrated in the fiber temperature detection host to display detailedly all the obtained temperature information to monitor the temperature. By applying optical fiber measurement to the measurement of the high-tension switchgear, the optical fiber temperature measurement host is resistant to electromagnetic interference, corrosion and lightning stroke, and can work in a severe environment. The integrated display module in the temperature measurement host enables the temperature measurement host to operate independently instead of depending on external display equipment.
Description
Technical field
The utility model relates to technical field of optical fiber sensing, relates in particular to a kind of optical fiber temperature-measurement main frame that is applicable to high-tension switch cabinet.
Background technology
The situations such as the connector of various contacts, bus bar, cable splice and the electrical equipment of high-tension switch cabinet inside is easy to occur loose contact, the bias of pegging graft is undesired.This will cause contact resistance excessive, under large electric current, this place's heating is serious, consequently connector temperature is abnormal, the oxidation of aggravation surface of contact, further increases contact resistance, forms vicious cycle, develop into after certain phase, can cause catastrophic failure, destroy the safe and reliable of power supply, this is the major failure form of high-tension switch cabinet.Therefore butt contact carries out real time temperature monitoring, finds in time the heat generating spot in switch cubicle, and the early prediction of realizing fault is very important for the guarantee security of the lives and property with warning.
More traditional thermometry comprises wireless temperature measurement technology, infrared temperature-test technology etc. at present.Because wireless temperature measurement and infrared temperature-test technology all adopt electronic sensor as on-the-spot sensing unit, spot sensor is charged, is easily subject to the impact of high-intensity magnetic field and high pressure, and long-term work is easily aging, brings potential safety hazard to equipment.Fiber Optic Pyrometer can be avoided the problems referred to above, but current optical fiber temperature-measurement mainly adopts optical cable, cannot realize the thermometric to special touch contact, and can only be used for remote thermometric.Therefore cannot be applicable to as the short distance of high-tension switch cabinet and so on and the temperature survey to special touch.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of method with optical fiber temperature-measurement, can be applied in the mini-system such as high-tension switch cabinet, and can realize the temperature survey to specific connector.
For solving the problems of the technologies described above, the utility model provides a kind of optical fiber temperature-measurement main frame that is applicable to a high-tension switch cabinet, and this optical fiber temperature-measurement main frame comprises:
At least one fibre-optical probe, for one of connecting in this high-tension switch cabinet connector to capture its temperature information and this temperature information is stored in to a light signal;
Light signal collection module, this temperature information that couples this at least one fibre-optical probe and captured to obtain it for this light signal of sampling; And
Display module, couples this light signal collection module, for showing this temperature information.
Further, described optical fiber temperature-measurement main frame more comprises a power module, is used to this optical fiber temperature-measurement main frame power supply.
Further, described light signal is a light modulating signal, and this light signal collection module comprises: light signal solution tuned plate, for receiving this light modulating signal and demodulating described temperature information; Temperature acquisition board, couples this light signal solution tuned plate, for storing described temperature information.
Further, described light signal solution tuned plate has multiple, is connected on described temperature acquisition board respectively by the mode of pegging graft.
Further, described light signal solution tuned plate comprises: one across resistance amplifying circuit, for described light modulating signal is carried out to opto-electronic conversion and amplification, to obtain a digital pulse signal; One processor, for digital pulse signal described in demodulation to obtain described temperature information.
Further, described optical fiber temperature-measurement main frame more comprises a communication interface board, for coupling an external unit so that described temperature information is exported.
Further, described external unit is a PC, for gathering and showing described temperature information.
Further, described communication interface board comprises: memory module, for store alarms temperature information; Real-time clock module, for showing current time; Temperature detecting module, for detection of the temperature of this high-tension switch cabinet cabinet; And ARM controller, for obtaining temperature the output of described alarm temperature information and high-tension switch cabinet cabinet.
Further, described optical fiber temperature-measurement main frame more comprises a relay module, for coupling an extraneous warning system, to report to the police during higher than a setting value when described temperature information.
Further, described fibre-optical probe be by coating technique by semiconductor material be evenly plated in fiber axis to xsect on, then form by ceramic pipe and aviation rubber seal dress.
Than prior art, the utility model provides a kind of optical fiber temperature-measurement main frame, adopt fibre-optical probe to couple connector in high-tension switch cabinet to obtain corresponding temperature information and to be stored in light signal, and adopt light signal collection module to carry out opto-electronic conversion the temperature information of therefrom sampling out to described light signal, in above-mentioned optical fiber temperature-measurement main frame, also integrated display module is to show that in detail the each temperature information obtaining is to monitor those temperature.Optical fiber measurement is applied to measurement high-tension switch cabinet, can anti-electromagnetic interference (EMI), burn into thunderbolt, and can under rugged surroundings, work, and display module is integrated in and in thermometric main frame, makes the described thermometric main frame can independent operating and do not rely on external display device.
Accompanying drawing explanation
Fig. 1 is the structural representation of thermometric main frame described in the utility model one embodiment.
Embodiment
Below in conjunction with the drawings and specific embodiments, the optical fiber temperature-measurement main frame the utility model proposes is described in further detail.According to the following describes and claims, advantage of the present utility model and feature will be clearer.It should be noted that, accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the object of aid illustration the utility model embodiment lucidly.
Please refer to Fig. 1, the present embodiment provides a kind of optical fiber temperature-measurement main frame, comprises fibre-optical probe 100, light signal collection module 200, power supply 300, relay 400, communication interface board 500 and display module 600.Each ingredient of above-mentioned optical fiber temperature-measurement main frame is integrated among a main frame, and each optical fiber temperature-measurement main frame thermometric show corresponding information separately also can be by multiple main frame networkings and by connecting outer PC thermometric.
Described fibre-optical probe 100 is attached to high-tension apparatus interior metal connector position, gathers the temperature of connector position.Fibre-optical probe 100 be by coating technique by semiconductor material be evenly plated in fiber axis to xsect on, then form by ceramic pipe and aviation rubber seal dress.It is 3 that each piece light signal collection module 200 connects multiple fibre-optical probe 100(the present embodiment).
Described light signal collection module 200 is divided into again two parts: light signal solution tuned plate 210, is used for receiving the light modulating signal that carries temperature information that fibre-optical probe 100 transmits, and is demodulated temperature data; It two is temperature acquisition boards 220, to store the temperature information demodulating, for example, can store in the RAM of an arm processor of himself.Described light signal solution tuned plate 210 is plugged on temperature acquisition board 220 as an independent module, has three light signal solution tuned plates 210 on the every light signal collection module 200 of the present embodiment, but not as limit.Each piece light signal solution tuned plate 210 has a passage to be used for transmitting temperature data, separates tuned plate three passages for three and is connected on temperature acquisition board three of 220 arm processor and interrupts on IO mouths.Wherein said arm processor is STM32.Each piece light signal collection module 200 has a RS485 interface chip to communicate by letter for carrying out RS485 with the external world, the uploading operation of the temperature data collecting.
Further, described power module 300 provides the power supply of 5V for whole system; Described display module 600 is TFT liquid crystal display.Described display module 600 obtains temperature data by inner RS485 interface from light signal collection module 200, then carries out full screen display.TFT liquid crystal display resolution is 320*240, and the capacity of display is large.In the time that the temperature of contact point exceedes the temperature of setting, the temperature of the interface display of display module 600 can become redness, the too high contact position of meeting displays temperature on interface simultaneously, and then link by the warning system in relay module 400 and an external world.
Communication interface board 500 is for coupling an external unit, and for example PC, with the temperature information output that optical fiber temperature-measurement main frame is recorded.Communication interface board 500 leaves two kinds of interfaces and is convenient to user's selection: Ethernet interface and RS485 interface.What these two kinds of interfaces adopted is all industrial Modbus agreement, a kind of employing be the implementation method of Modbus agreement on TCP; A kind of is the implementation method of Modbus on serial link.
Communication interface board 500 is loaded with memory module 510, real-time clock module 520, temperature detecting module 530, ARM controller 540.Wherein memory module 510 adopts ferroelectric memory, and reliability is high, and erasable number of times reaches 10,000,000,000 times, for store alarms temperature information; Real-time clock module 520 can show the current time; Temperature detecting module 530 adopts 1-wire digital temperature sensor ds18b20, as the detection of housing temperature.These information exchanges are crossed ARM controller 540 and are obtained, and are uploaded to PC by network or RS485 interface.
Describe specific implementation process of the present utility model in detail below in conjunction with Fig. 1.
One end of fibre-optical probe 100 is attached to the metal joint place of machine to be measured, and the other end is plugged on light signal collection module 200 by optical cable SC joint.Determine the quantity of light signal collection plate according to the quantity of measurement point.Fibre-optical probe 100 records temperature data and sends light modulating signal to light signal collection module 200 by the mode of PPM, light signal solution tuned plate 210 on light signal collection module 200 receives the light signal sending, what consist of PIN receiving tube and amplifier carries out opto-electronic conversion and amplification across resistance amplifying circuit 211 to signal, and by quadravalence Butterworth filtering noise, finally amplify through one-level again, the level of signal is amplified to 3.3V, low level is 0V, such PPM light modulating signal has just become string number pulse signal, this pulse train signal includes temperature information.Digital pulse signal carries out demodulation by processor 212, demodulating process is as follows: the IO mouth of processor 212 is configured to the interrupt mode with pull-up resistor input, edging trigger, opening timing device in the time that a negative edge arrives, then in the time that arriving, turns off rising edge timer, between mistiming be designated as T, and T/ pulsewidth obtains pulse number, pulse number is the temperature value of integer representation.After processor 212 gets temperature value, deposit its RAM in, after waiting external unit PC or display module 600 and sending data acquisition request, temperature data is sent out by the pattern of RS485 or network.
Further, in the time that outer PC or display module 600 need temperature data or alert data, send the instruction of obtaining temperature data or reporting to the police storage by the pattern of network or RS485, after light signal collection module 200 receives order, these data are uploaded according to predetermined rule.The data that receive show on PC or display module 600, and alert data is to carry out early warning with the form of heartbeat packet on PC, and relay module 400 is closed simultaneously, extraneous interlink warning.
Optical fiber temperature-measurement main frame that the utility model provides adopts fibre-optical probe 100 to couple connector in high-tension switch cabinet to obtain corresponding temperature information and to be stored in light modulating signal, and adopt light signal collection module 200 to carry out opto-electronic conversion the temperature information of therefrom sampling out to described light signal, in above-mentioned optical fiber temperature-measurement main frame, also integrated display module 600 is to show that in detail the each temperature information obtaining is to monitor those temperature.Optical fiber temperature-measurement is applied to measurement high-tension switch cabinet, can anti-electromagnetic interference (EMI), burn into thunderbolt, and can under rugged surroundings, work, and display module 600 is integrated in and in thermometric main frame, makes the described thermometric main frame can independent operating and do not rely on external display device.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to including these changes and modification.
Claims (9)
1. an optical fiber temperature-measurement main frame, is applicable to a high-tension switch cabinet, and described optical fiber temperature-measurement main frame comprises and is integrated in one:
At least one fibre-optical probe, one of connects in this high-tension switch cabinet connector, to capture its temperature information and this temperature information is stored in a light signal;
Light signal collection module, this temperature information that couples this at least one fibre-optical probe and captured to obtain it for this light signal of sampling; And
Display module, couples this light signal collection module, for showing this temperature information.
2. optical fiber temperature-measurement main frame as claimed in claim 1, is characterized in that: this optical fiber temperature-measurement main frame more comprises a power module for this optical fiber temperature-measurement main frame power supply, is arranged in described optical fiber temperature-measurement main frame.
3. optical fiber temperature-measurement main frame as claimed in claim 1, is characterized in that: described light signal is a light modulating signal, and this light signal collection module comprises:
Light signal solution tuned plate and the temperature acquisition board that couples this light signal solution tuned plate, described light modulating signal is demodulated described temperature information and is stored in described temperature acquisition board by described light signal solution tuned plate.
4. optical fiber temperature-measurement main frame as claimed in claim 3, is characterized in that: described light signal solution tuned plate has multiple, is connected on described temperature acquisition board respectively by the mode of pegging graft.
5. optical fiber temperature-measurement main frame as claimed in claim 3, is characterized in that: described light signal solution tuned plate comprises:
One across hindering amplifying circuit and coupling a described processor across resistance amplifying circuit, and described light modulating signal carries out opto-electronic conversion and amplify generating a digital pulse signal and generating described temperature information by described processor demodulation across resistance amplifying circuit by described.
6. optical fiber temperature-measurement main frame as claimed in claim 1, is characterized in that: this optical fiber temperature-measurement main frame more comprises a communication interface board, couples an external unit so that described temperature information is exported.
7. optical fiber temperature-measurement main frame as claimed in claim 6, is characterized in that: described external unit is a PC, for gathering and showing described temperature information.
8. optical fiber temperature-measurement main frame as claimed in claim 6, is characterized in that: this communication interface board comprises the memory module for store alarms temperature information; For showing the real-time clock module of current time; For detection of the temperature detecting module of this high-tension switch cabinet cabinet temperature; And ARM controller, for obtaining temperature the output of described alarm temperature information and high-tension switch cabinet cabinet;
Wherein, described memory module, real-time clock module, temperature detecting module and ARM controller are connected to each other.
9. optical fiber temperature-measurement main frame as claimed in claim 1, is characterized in that: more comprise a relay module, couple an extraneous warning system, to report to the police during higher than a setting value when described temperature information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320834808.0U CN203705083U (en) | 2013-12-16 | 2013-12-16 | Optical fiber temperature measurement host |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320834808.0U CN203705083U (en) | 2013-12-16 | 2013-12-16 | Optical fiber temperature measurement host |
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| CN203705083U true CN203705083U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320834808.0U Expired - Fee Related CN203705083U (en) | 2013-12-16 | 2013-12-16 | Optical fiber temperature measurement host |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104483039A (en) * | 2014-12-26 | 2015-04-01 | 苏州市龙源电力科技股份有限公司 | On-line optical fiber temperature monitoring system for switch cabinet |
-
2013
- 2013-12-16 CN CN201320834808.0U patent/CN203705083U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104483039A (en) * | 2014-12-26 | 2015-04-01 | 苏州市龙源电力科技股份有限公司 | On-line optical fiber temperature monitoring system for switch cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20151216 |
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| EXPY | Termination of patent right or utility model |