CN217953412U - Distributed optical fiber online measuring device for silt deposition rate of irrigation channel - Google Patents
Distributed optical fiber online measuring device for silt deposition rate of irrigation channel Download PDFInfo
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- CN217953412U CN217953412U CN202222232659.2U CN202222232659U CN217953412U CN 217953412 U CN217953412 U CN 217953412U CN 202222232659 U CN202222232659 U CN 202222232659U CN 217953412 U CN217953412 U CN 217953412U
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Abstract
The utility model discloses a distributing type optic fibre's irrigation canal silt siltation speed on-line measuring device relates to the silt siltation measurement field. The system comprises a three-pin organic glass bracket, a distributed optical fiber sensor, a power supply box, a light source pulse transmitter, a data real-time transmission transmitter and a data receiving terminal; the distributed optical fiber sensor is arranged on each support leg of the three-leg organic glass support, the light source pulse emitter and the data real-time transmission emitter are arranged at the top of the three-leg organic glass support, the power supply box is arranged on the shore and connected with the light source pulse emitter and the data real-time transmission emitter, and the data receiving terminal is used for receiving field monitoring data. The utility model discloses support and acquire the siltation rate data of a plurality of positions in same time quantum for monitoring data is representative. Furthermore, the utility model discloses utilize online real-time transmission technique, can in time provide data analysis and early warning decision-making for the administrator.
Description
Technical Field
The utility model relates to a silt siltation measurement technical field, the more specifically irrigation canal silt siltation speed on-line measuring device who relates to a distributing type optic fibre that says so.
Background
Irrigation canals are currently used for irrigation planting at home and abroad, and an important way for guaranteeing water for agricultural planting is provided. Silt siltation is a common phenomenon in the diversion process of irrigation canals. Silt siltation is an important environmental disaster problem in the operation process of rivers or irrigation canals at home and abroad at present, and directly influences the ecological system, navigation, irrigation and the like of the rivers or irrigation canals, so that the economy and the environment are damaged. In order to perfect early warning and dredging measures for sediment accumulation in a river channel and further prevent and treat environmental disaster problems caused by sediment accumulation, real-time monitoring of dynamic changes of sediment accumulation in the river channel is particularly necessary.
River sediment monitoring has been provided with devices such as buoy monitoring equipment, portable sedimentation depth measuring equipment, river runoff sediment measuring devices, and the like. The existing device provides a better solution for monitoring the river sediment, but still has certain defects: (1) The existing equipment is mainly used for measuring the sediment content, the sediment depth and the like of a river channel, but cannot obtain the sediment deposition rate information and cannot determine the sediment deposition speed and the early warning bit timeliness, (2) some equipment can automatically measure, but cannot monitor on line in real time and cannot provide the timeliness of data information; (3) Existing devices monitor or measure the location to a point that is not representative of a section of the river. In addition, related devices for monitoring silt accumulation in irrigation canals are rare, and therefore, how to accurately measure the silt accumulation rate is an urgent problem to be solved for those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an irrigation canal silt siltation speed on-line measuring device of distributing type optic fibre, the silt siltation speed of real-time on-line monitoring channel through the temperature, the pressure variation of distributed sensing optic fibre in the discontinuous measurement channel.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an online measuring device for the sedimentation rate of silt in an irrigation canal by using a distributed optical fiber comprises a three-pin organic glass bracket, a distributed optical fiber sensor, a power supply box, a light source pulse transmitter, a data real-time transmission transmitter and a data receiving terminal; the distributed optical fiber sensor is arranged on each support leg of the three-leg organic glass support, the light source pulse transmitter and the data real-time transmission transmitter are arranged at the top of the three-leg organic glass support, the power supply box is arranged on the shore and connected with the light source pulse transmitter and the data real-time transmission transmitter, and the data receiving terminal is used for receiving field monitoring data.
Optionally, the three-legged organic glass bracket includes three glass support legs and a connector, and each of the glass support legs is made of polymethyl methacrylate.
By adopting the technical scheme, the method has the following beneficial technical effects: each glass support leg is made of polymethyl methacrylate, the temperature change of the glass support leg is not obvious along with the change of the external temperature, and the glass support leg can effectively resist the temperature change caused by solar irradiation, water flow soaking and rain and snow weather, so that the temperature influence of the support legs on the distributed optical fiber sensor is reduced.
Optionally, the glass support leg is hollow cylindrical, and the bottom of the cylinder is sealed by a glass fiber membrane.
By adopting the technical scheme, the method has the following beneficial technical effects: the glass fiber membrane has water permeability, so that only water in the canal can enter the inside of the supporting leg, i.e. the temperature change of the internal sensing optical fiber only mainly comes from the influence of the canal filling water.
Optionally, the connector is provided with a support leg angle adjuster for adjusting an angle between the glass support leg and the central axis.
Optionally, the power supply box is a solar power supply box, and the solar power supply box comprises a solar panel and an energy storage and voltage stabilization power supply; and the solar panel is connected with the energy storage and voltage stabilization power supply.
Optionally, the optical fiber sensor further comprises a data storage, and the data storage is connected with the data real-time transmission transmitter and the distributed optical fiber sensor.
Can know via foretell technical scheme, compare with prior art, the utility model discloses an online measuring device of irrigation canals and ditches silt siltation rate of distributing type optic fibre has following profitable technological effect: adopt distributed optical fiber sensor, consider the information of a certain section three position of irrigation canal simultaneously, every position is through interior survey and two distributed optical fiber sensor's in the outside simultaneous monitoring and calculation to can acquire accurate silt siltation rate in time and space, and utilize online real-time transmission technique, in time for the administrator provide data analysis and early warning decision, if can use simultaneously in the upper and middle low reaches of irrigation canal can monitor the silt siltation of whole irrigation canal and make clear and definite early warning to quick siltation section or serious section of siltation for the administrator.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the combined structure of the three-legged organic glass bracket, the light source pulse transmitter and the data real-time transmission transmitter of the present invention;
FIG. 3 is a schematic structural view of the solar power box of the present invention;
the solar energy power supply comprises a solar panel 1, an energy storage and voltage stabilization power supply 2, a tripod organic glass support 3, a data receiving terminal 4, an external sensing optical fiber 5, a central shaft 6, a light source pulse transmitter 7, support legs 8, a data memory 9, a data real-time transmission transmitter 10, a line expansion device 11, an internal sensing optical fiber 12 and a support leg angle adjuster 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
The embodiment of the utility model discloses an online measuring device of distributed optical fiber for silt deposition rate of irrigation canals, as shown in fig. 1 and fig. 2, comprises a three-pin organic glass bracket 3, a distributed optical fiber sensor, a power supply box, a light source pulse transmitter 7, a data real-time transmission transmitter 10 and a data receiving terminal 4; wherein, place tripod organic glass support 3 in the irrigation canals, install distributed optical fiber sensor on every stabilizer blade of tripod organic glass support 3, at tripod organic glass support 3's top installation light source pulse transmitter 7 and data real-time transmission transmitter 10, the power supply box is placed on the bank, and the power supply box links to each other with light source pulse transmitter 7, data real-time transmission transmitter 10, data receiving terminal 4 for receive open-air monitoring data.
Furthermore, the three-legged organic glass bracket 3 comprises three glass support legs and a connector, each glass support leg 8 is made of polymethyl methacrylate, and along with the change of the external temperature, the temperature change of the material is not obvious, so that the temperature change caused by solar irradiation, water flow soaking and rain and snow weather can be effectively resisted, and therefore, the influence of the support legs on the temperature of the distributed optical fiber sensor is reduced.
Further, each leg 8 has a length of 1.5m, is hollow cylindrical, and has distributed optical fiber sensors (referred to as an inner sensing fiber 12 and an outer sensing fiber 5, respectively) disposed inside and outside the cylinder. The cylinder bottom is sealed with a glass fiber membrane having water permeability, so that only water in the canal can enter the inside of the supporting leg 8, i.e. the temperature change of the internal sensing optical fiber 12 mainly comes from the influence of canal water, while the temperature change of the external sensing optical fiber 5 comes from the combined action of canal water and sediments. The connector is made of stainless steel, and the material is resistant to chemical erosion. The upper part of the connector is provided with a leg angle adjuster 13 for adjusting the angle of the leg and the central axis, at which time the angle between the leg 8 and the central axis 6 is alpha.
In the present embodiment, the power supply box is a solar power supply box, as shown in fig. 3, the solar power supply box includes a solar panel 1 and an energy storage and voltage stabilization power supply 2; the solar panel 1 is connected with the energy storage and voltage stabilization power supply 2.
The device also comprises a data memory 9, wherein the data memory 9 is connected with a data real-time transmission emitter 10 and the distributed optical fiber sensor.
The utility model discloses a theory of operation does: as shown in fig. 1, all the components are connected, the solar power box is debugged to ensure stable power supply, and meanwhile, the distributed optical fiber sensor, the light source pulse emitter 7, the data real-time transmission emitter 10 and the indoor data receiving terminal 4 are debugged to ensure normal data transmission and reception.
And after the debugging of the components is finished, formally entering a working state. First, the solar power box starts to operate to supply power to other components. Secondly, the data real-time transmission transmitter 10, the indoor data receiving terminal 4 and the light source pulse transmitter 7 work simultaneously. Along with the flow of water flow and the accumulation of silt, the inner sensing optical fiber 12 and the outer sensing optical fiber 5 have different temperature and pressure changes at different times. The data obtained by the distributed optical fiber sensor is collected into the data storage 9, meanwhile, the data is sent by the data real-time transmission transmitter 10, and the indoor data receiving terminal 4 synchronously receives the data. The recording time interval of the distributed optical fiber sensor is 10 minutes, and a manager statistically analyzes data of three points (support legs) through the indoor data receiving terminal 4. For each point (leg), the final temperature spectrum corresponding to each detection time is represented by the temperature spectrum of the outer sensing fiber 5 minus the temperature spectrum of the inner sensing fiber 12 (so that the subtraction can remove the water temperature influence noise). The final pressure spectrum corresponding to each detection time is represented by the pressure spectrum of the external sensing optical fiber 5. The spectral line will change continuously with silt deposition, and considering that the support legs and the horizontal plane have a certain included angle, therefore, the thickness of silt is the corresponding length of the horizontal axis of the spectral line divided by sin (90-alpha). And finally, determining the silt deposition rate of the irrigation channel corresponding to each detection time, judging the silt deposition development trend and performing early warning decision in time.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. An online measuring device for the sedimentation rate of silt in an irrigation canal by using a distributed optical fiber is characterized by comprising a three-pin organic glass bracket, a distributed optical fiber sensor, a power supply box, a light source pulse transmitter, a data real-time transmission transmitter and a data receiving terminal; the distributed optical fiber sensor is arranged on each supporting leg of the three-leg organic glass support, the light source pulse transmitter and the data real-time transmission transmitter are arranged at the top of the three-leg organic glass support, the power supply box is arranged on the shore and connected with the light source pulse transmitter and the data real-time transmission transmitter, and the data receiving terminal is used for receiving field monitoring data.
2. The device for measuring the silt deposition rate in the irrigation canal of the distributed optical fiber according to claim 1, wherein the three-leg organic glass bracket comprises three glass legs and a connector, and each glass leg is made of polymethyl methacrylate.
3. The distributed optical fiber online measuring device for the silt deposition rate of the irrigation canal of the claim 2, wherein the glass support leg is a hollow cylinder, and the bottom of the cylinder is sealed by a glass fiber membrane.
4. The distributed optical fiber online measuring device for the silt deposition rate of the irrigation canals and the ditches according to claim 2, wherein a support leg angle adjuster is arranged on the connector and used for adjusting the angle between the glass support leg and the central shaft.
5. The distributed optical fiber online measuring device for the silt deposition rate of the irrigation canal of the claim 1, wherein the power supply box is a solar power supply box, and the solar power supply box comprises a solar panel and an energy storage and voltage stabilization power supply; and the solar panel is connected with the energy storage and voltage stabilization power supply.
6. The distributed optical fiber online measuring device for the silt deposition rate in irrigation canals, according to claim 1, further comprising a data storage, wherein the data storage is connected with the data real-time transmission transmitter and the distributed optical fiber sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222232659.2U CN217953412U (en) | 2022-08-24 | 2022-08-24 | Distributed optical fiber online measuring device for silt deposition rate of irrigation channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222232659.2U CN217953412U (en) | 2022-08-24 | 2022-08-24 | Distributed optical fiber online measuring device for silt deposition rate of irrigation channel |
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| CN217953412U true CN217953412U (en) | 2022-12-02 |
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| CN202222232659.2U Active CN217953412U (en) | 2022-08-24 | 2022-08-24 | Distributed optical fiber online measuring device for silt deposition rate of irrigation channel |
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| CN (1) | CN217953412U (en) |
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- 2022-08-24 CN CN202222232659.2U patent/CN217953412U/en active Active
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