CN204465537U - Petroleum pipeline optical cable inquiry unit - Google Patents
Petroleum pipeline optical cable inquiry unit Download PDFInfo
- Publication number
- CN204465537U CN204465537U CN201520007844.9U CN201520007844U CN204465537U CN 204465537 U CN204465537 U CN 204465537U CN 201520007844 U CN201520007844 U CN 201520007844U CN 204465537 U CN204465537 U CN 204465537U
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- optical cable
- signal
- chip
- inquiry unit
- module
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- 230000003287 optical effect Effects 0.000 title claims abstract description 78
- 239000003208 petroleum Substances 0.000 title abstract 2
- 238000004891 communication Methods 0.000 claims abstract description 29
- 238000012545 processing Methods 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 230000001427 coherent effect Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 8
- 230000003321 amplification Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 241000209094 Oryza Species 0.000 description 9
- 235000007164 Oryza sativa Nutrition 0.000 description 9
- 235000009566 rice Nutrition 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 4
- 239000013307 optical fiber Substances 0.000 description 4
- 238000000253 optical time-domain reflectometry Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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Abstract
The utility model provides a petroleum pipeline optical cable inquiry unit, include: the light source module is used for inputting coherent light to the first end of the communication optical cable; the reflecting module is connected with the light source module through a second end of the communication optical cable and is used for reflecting the coherent light; the photoelectric detection device is connected with the first end of the communication optical cable and used for receiving an interference optical signal and converting the interference optical signal into an electric signal; and the signal processing module is connected with the photoelectric detection equipment and is used for demodulating the reflected electric signal. Through the utility model discloses can interfere principle and elasto-optic effect according to laser, demodulate the processing through the interference signal that the michelson interferometer that constitutes jointly this equipment and communication optical cable returns, extract vibration information, realize seeking the optical cable route to can give audio-visual demonstration or audio output.
Description
Technical field
The utility model relates to a kind of oil pipeline optical cable inquiry unit, particularly relates to a kind of oil pipeline optical cable inquiry unit based on Michelson's interferometer.
Background technology
Monomode fiber, as the basic module of communications optical cable, has extremely low attenuation coefficient and cheap price advantage, is therefore widely used in the communications field.Under normal conditions, communications optical cable is normal with laying oil pipeline.When improving data or keep in repair after communications optical cable is completed, usually need the resource inspection carrying out optical cable, namely search the route of optical cable.And optical cable is at the scene usually bunchy distribution, numerous optical cable mixes.To accurately find out required optical cable in optical cable upon mixing and there is very large difficulty.And the maintenance time of communications optical cable is of great value, because the communications optical cable long inconvenience caused maintenance time and loss are very large.Keep in repair necessary Optical Cable as communications optical cable, more play a significant role in saving time.
Current Optical Cable is generally realized by the rice mark of OTDR equipment and optical cable self.Wherein, OTDR equipment is used for the length of line condition in test optical fibre cables optical fiber and optical fiber.Can be observed with or without breakpoint and obvious loss point in optical fiber by OTDR equipment, and determine the optical length of this core fibre.And the length of institute's light-metering fibre is generally 1.005 times of optical cable physical length.The rice mark of the optical cable of wanted route can be calculated according to completion information along the line.Check the rice mark information of numerous optical cable again according to this information, just can find out required optical cable, and carry out next step maintenance of the perfect of completion information or optical cable.
Existing optical cable census method needs to be equipped with complete completion information, and not available for the optical cable construction of this mode just under some advance works or particular surroundings.Owing to needing the test result in conjunction with OTDR equipment and verifying required optical cable by the rice mark of optical cable self, so it is complete to need the rice mark on optical cable surface to retain, can not heavy wear, but in the communications optical cable of pipeline construction, the situation of rice mark wearing and tearing is very common.In this case, cause difficulty will to the route of optical cable, thus delay the maintenance time of optical cable, cause unnecessary economic loss.
Utility model content
The purpose of this utility model is to provide a kind of oil pipeline optical cable inquiry unit, in order to solve the complete type of completion information and to the not convenient technical problem such as requirement of optical cable rice mark integrality.
The technical solution of the utility model is to provide a kind of oil pipeline optical cable inquiry unit, comprising:
Light source module, for the first end input coherent light to communications optical cable;
Reflecting module, is connected with second end of described light source module by communications optical cable, for reflecting described coherent light;
Photoelectric detection equipment, is connected with the first end of described communications optical cable, for receiving interference light signal and described interference light signal being converted to the signal of telecommunication;
Signal processing module, is connected with described photoelectric detection equipment, for carrying out demodulation process to the described signal of telecommunication.
In the utility model one embodiment, also comprise:
Display module, is connected with described signal processing module, for being exported by Query Result.
In the utility model one embodiment, described display module exports in the mode of Audio and Video.
In the utility model one embodiment, also comprise:
Pre-amplification circuit, between described photoelectric detection equipment and described signal processing module, for amplifying and filtering process the described signal of telecommunication.
In the utility model one embodiment, also comprise:
Described communications optical cable carries out being connected and fixing with described light source module and described reflecting module with wire jumper by flange.
In the utility model one embodiment, described pre-amplification circuit comprises: A/D chip, fpga chip and D/A chip, described A/D chip is connected on described fpga chip, described fpga chip is connected on D/A chip, for analog signal is converted to digital signal, and described digital signal is converted to analog signal by described D/A chip.
Can according to laser interference principle and elasto-optical effect by the utility model, the interference signal returned by the Michelson's interferometer jointly formed this equipment and communications optical cable carries out demodulation process, extract vibration information, realize searching Optical Cable, and display intuitively or audio frequency output can be provided.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is the structured flowchart of the utility model based on the optical cable inquiry unit of Michelson's interferometer;
Fig. 2 is the structured flowchart of signal processing circuit in the utility model one embodiment;
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the utility model embodiment is described in further details.At this, schematic description and description of the present utility model for explaining the utility model, but not as to restriction of the present utility model.
The utility model provides a kind of oil pipeline optical cable inquiry unit, comprising:
Light source module 10, for the first end input coherent light to communications optical cable 40;
Reflecting module 50, is connected with second end of described light source module 10 by communications optical cable 40, for reflecting described coherent light;
Photoelectric detection equipment 61, is connected with the first end of described communications optical cable 40, for receiving described interference light signal and described interference light signal being converted to the signal of telecommunication;
Signal processing module 60, is connected with described photoelectric detection equipment 61, for carrying out demodulation process to the described signal of telecommunication of reflection.
In the utility model one embodiment, also comprise:
Display module 70, is connected with described signal processing module 60, for being exported by described Query Result.
In the utility model one embodiment, described display module 70 exports in the mode of Audio and Video.
In the utility model one embodiment, also comprise:
Pre-amplification circuit 62, between described photoelectric detection equipment 61 and described signal processing module 60, for amplifying and filtering process the described signal of telecommunication.
In the utility model one embodiment, also comprise:
Described communications optical cable 40 carries out being connected and fixing with described light source module 10 and described reflecting module 50 with wire jumper by flange.
In the utility model one embodiment, described pre-amplification circuit comprises: A/D chip 630, fpga chip 631 and D/A chip 632, described A/D chip 630 is connected on described fpga chip 631, described fpga chip is connected on D/A chip, for analog signal is converted to digital signal, and described digital signal is converted to analog signal by described D/A chip 632.
The oil pipeline optical cable inquiry unit provided by the utility model, can according to laser interference principle and elasto-optical effect, the interference signal returned by the Michelson's interferometer jointly formed this equipment and communications optical cable carries out demodulation process, extract vibration information, realize searching Optical Cable, and display intuitively or audio frequency output can be provided.
Below in conjunction with a specific embodiment, the utility model is specifically described, but it should be noted that this specific embodiment is only to describe the utility model better, do not form improper restriction of the present utility model.
Embodiment 1
Fig. 1 is an embodiment of the optical cable inquiry unit based on Michelson's interferometer.This optical cable inquiry unit comprises: light source module 10, the narrow linewidth light sent by light source module 10 after point Light coupling devices 12 is divided into the two bundle coherent lights of 50:50, and from one end input of the communications optical cable 40 distributing frame of on-the-spot (or far-end), wherein, one end of communications optical cable 40 is connected with light source module 10 with flange 30 respectively by wire jumper 20, and at the other end of communications optical cable 40 by flange 30, wire jumper 20, be connected with the reflection unit 52 in reflecting module 50, they and reflection unit 52 form Michelson's interferometer jointly.
Photoelectric detection equipment 61 receives the interference light signal that reflecting module 50 is reflected back, and interference light signal is converted to the signal of telecommunication, and pre-amplification circuit 62 amplifies and filtering process the signal of telecommunication after conversion.Then, this signal is resolved by signal processing circuit 63, and by the result after resolving with the mode display translation of Audio and Video to display module 7.
Fig. 2 is the structured flowchart of signal processing circuit in the utility model one embodiment.Pre-amplification circuit 62 is connected on the corresponding pin of fpga chip 631, fpga chip is connected on D/A chip, for the analog signal received is converted to digital signal after A/D chip 630, in fpga chip 631, its energy information is asked for received signal, the result of calculating is converted to analog signal by D/A chip 632, then passes through connected display module 70 and show.
In the present embodiment, the FPGA631 in this circuit also can change the digit chip such as DSP or single-chip microcomputer into, and its control action is identical.
In the present embodiment, described signal transacting and display circuit also can be realized by capture card and computer or single board computer and display, and its effect is identical.
The utility model tool has the following advantages:
1). structure is simple, and cost is low, easy to operate, only needs vibration optical cable just can realize optical cable generaI investigation function, can save the plenty of time;
2). be applicable to the occasion of optical cable rice mark serious wear, still accurately can find the route of optical cable in this case, therefore without the need to complete construction handbook, and without the need to manually calculating Distance geometry on-the-spot testing rice mark;
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; and be not used in restriction protection range of the present utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (6)
1. an oil pipeline optical cable inquiry unit, is characterized in that, comprising:
Light source module, for the first end input coherent light to communications optical cable;
Reflecting module, is connected with second end of described light source module by communications optical cable, for reflecting described coherent light;
Photoelectric detection equipment, is connected with the first end of described communications optical cable, for receiving interference light signal and described interference light signal being converted to the signal of telecommunication;
Signal processing module, is connected with described photoelectric detection equipment, for carrying out demodulation process to the described signal of telecommunication.
2. oil pipeline optical cable inquiry unit according to claim 1, is characterized in that, also comprise:
Display module, is connected with described signal processing module, for being exported by Query Result.
3. oil pipeline optical cable inquiry unit according to claim 2, it is characterized in that, described display module exports in the mode of Audio and Video.
4. oil pipeline optical cable inquiry unit according to claim 1, is characterized in that, also comprise:
Pre-amplification circuit, between described photoelectric detection equipment and described signal processing module, for amplifying and filtering process the described signal of telecommunication.
5. oil pipeline optical cable inquiry unit according to claim 1, is characterized in that, also comprise:
Described communications optical cable carries out being connected and fixing with described light source module and described reflecting module with wire jumper by flange.
6. oil pipeline optical cable inquiry unit according to claim 4, it is characterized in that, described pre-amplification circuit comprises: A/D chip, fpga chip and D/A chip, described A/D chip is connected on described fpga chip, described fpga chip is connected on D/A chip, for analog signal is converted to digital signal, and described digital signal is converted to analog signal by described D/A chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007844.9U CN204465537U (en) | 2015-01-07 | 2015-01-07 | Petroleum pipeline optical cable inquiry unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520007844.9U CN204465537U (en) | 2015-01-07 | 2015-01-07 | Petroleum pipeline optical cable inquiry unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204465537U true CN204465537U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520007844.9U Expired - Fee Related CN204465537U (en) | 2015-01-07 | 2015-01-07 | Petroleum pipeline optical cable inquiry unit |
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| CN (1) | CN204465537U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104601222A (en) * | 2015-01-07 | 2015-05-06 | 中国石油天然气股份有限公司 | Petroleum pipeline optical cable inquiry unit |
-
2015
- 2015-01-07 CN CN201520007844.9U patent/CN204465537U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104601222A (en) * | 2015-01-07 | 2015-05-06 | 中国石油天然气股份有限公司 | Petroleum pipeline optical cable inquiry unit |
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|---|---|---|---|
| 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: 20150708 |
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| CF01 | Termination of patent right due to non-payment of annual fee |