CN111322960A - Real-time monitoring system and method for deformation of soft water draining platform for channel improvement - Google Patents

Abstract

The invention relates to a real-time monitoring system and a real-time monitoring method for deformation of a channel-renovating soft withered water draining platform based on distributed optical fibers, wherein the system comprises a distributed high-strength fixed-point optical cable, an optical fiber demodulator, a transmission control module, a data acquisition and analysis module and a solar power supply module; the distributed high-strength fixed-point optical cables are fixed on soft row arrangement below the rock blocks along with construction of the dry water platform and used for monitoring settlement deformation of the dry water platform in real time; the optical fiber demodulator is used for analyzing the optical signal of the sensing optical cable and sensing the settlement deformation of the dry water platform; the transmission control module is used for wirelessly transmitting the measurement data transmitted by the optical fiber demodulator to the data acquisition and analysis module, receiving the measurement command transmitted by the data acquisition and analysis module to control the measurement of the demodulator, and remotely realizing the timing and instant measurement of the deformation of the sensing cable by the optical fiber demodulator. By the monitoring system and the monitoring method, the settlement deformation condition of the dry water platform can be accurately monitored in real time.

Description

A real-time monitoring system and method for the deformation of a waterway remediation soft-body drainage platform

technical field

The invention relates to the technical field of waterway regulation, in particular to a real-time monitoring system and method for the deformation of a waterway regulation software platform based on distributed optical fibers.

Background technique

Soft row is a kind of river bottom anti-scour and silt-promoting measures formed by using geotextile to make a certain size arrangement and tie a fixed-shaped concrete block as a ballast block. At present, it is widely used in waterway regulation in the middle and lower reaches of the Yangtze River. In the project, especially the protection of river slopes in the middle and lower reaches of the Yangtze River, the protection of beach and the rear protection of various spur dams.

Each part of a typical soft bank protection project is composed of three main parts, which are the soft bank protection bottom, the low water platform and the gabion net bank protection in ascending order of elevation. The design elevation of the low-water platform is such that it is submerged by the water flow during the high water level period and is scoured by the water flow, and is exposed to the water surface in the low-water season. At the same time, the low-water platform is the junction area between the bank protection and the bottom protection project, so the stability of the low-water platform has a great impact on the overall stability of the soft-body drainage bank protection project.

At present, the waterway management department mainly relies on an annual on-site survey during the dry season to grasp the water damage of the soft drainage revetment (dry-water platform and the revetment above the dry-water platform). , this method cannot achieve accurate evaluation and real-time evaluation of the deformation and stability of the low-water platform, and the evaluation results of water damage and deformation have a certain hysteresis, which is not conducive to the timely maintenance of the soft body drainage and revetment works. Therefore, the present invention proposes a A distributed optical fiber-based real-time monitoring system and method for the deformation of a waterway regulation software platform for drainage of dry water can monitor the deformation of the platform in dry water in real time, so that the channel management department can timely carry out the operation and maintenance of the regulation software project for shore protection.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to aim at the deficiencies of the above-mentioned prior art, and to provide a real-time monitoring system for the deformation and deformation of a dry-water platform based on distributed optical fiber, which can monitor the deformation and settlement of a dry-water platform remotely, in real-time, and dynamically. method.

For achieving the above object, the technical scheme provided by the present invention is:

A real-time monitoring system for the deformation of a waterway regulation software based on a distributed optical fiber for a water drainage platform, comprising a distributed high-strength fixed-point optical cable, an optical fiber demodulator, a transmission control module, a data acquisition and analysis module, and a solar power supply module;

The distributed high-strength fixed-point optical cable is fixed on the soft body arrangement below the boulders with the construction of the dry platform, and is used for real-time monitoring of the settlement and deformation of the low-water platform. The distributed high-strength fixed-point optical cable is led to the shore and then intervened. Fiber demodulator;

The optical fiber demodulator is used to analyze the optical signal of the sensing optical cable, so as to sense the settlement deformation of the low-water platform, and the optical fiber demodulator transmits the measurement data obtained by the analytical measurement to the transmission control module;

The transmission control module transmits the measurement data from the optical fiber demodulator to the data acquisition and analysis module, and receives the measurement command sent by the data acquisition and analysis module, and then transmits the received measurement command to the optical fiber demodulator to realize Timing and real-time measurement of sensor cable deformation by optical fiber demodulator;

The solar power supply module is connected to the optical fiber demodulator and the transmission control module, and provides power for the optical fiber demodulator and the transmission control module.

Further, a high-strength temperature compensation optical fiber with the same length as the distributed high-intensity fixed-point optical fiber cable is arranged in parallel beside the distributed high-intensity fixed-point optical fiber cable, and both are finally led to the onshore intervention optical fiber demodulator.

Further, the distributed high-strength fixed-point optical fiber cable and the high-strength temperature compensation optical fiber are synchronously fixed on the soft body arrangement under the block stone along the length of the dry platform by means of clamps during the construction process.

Further, the clamp includes a clip, a gasket and a fixing bolt, and the clip has two raised bayonets, which are a strain optical cable fixing bayonet and a temperature compensation optical cable fixing bayonet respectively; the clip The plate is installed on the gasket, and the two ends of the clip and the gasket are installed and fixed by fixing bolts; reinforced strips are laid between the clip and the gasket, and the reinforced strips pass through the clip and the gasket. The gap between the spacers, the strain optic cable fixing bayonet and the temperature compensating optic cable fixing bayonet respectively fix the strain optic cable and the temperature compensating optic cable on the arrangement rib.

Further, the transmission control module has wireless receiving and transmitting terminals, and the transmission control module and the data acquisition and analysis module are connected by wireless signals to remotely realize the timing and real-time measurement of the deformation of the sensing optical cable by the optical fiber demodulator.

A method for real-time monitoring of the deformation of a waterway regulation software platform based on distributed optical fibers, comprising the following steps:

S1: After the construction and debugging of the real-time monitoring system is completed, use the data acquisition and analysis module to set the monitoring time and issue a measurement command;

S2: After the transmission control module receives the measurement command, it controls the optical fiber demodulator to measure the distributed high-strength fixed-point optical cable and the high-intensity temperature-compensated optical cable;

S3: After each optical fiber demodulator measurement is completed, the measurement data is transmitted to the data acquisition and analysis module through the transmission control module;

S4: The data acquisition and analysis module analyzes and calculates the received optical cable deformation data, obtains the settlement deformation amount of the low-water platform, and conducts real-time monitoring;

S5: During the operation of the entire real-time monitoring system, the optical fiber demodulator and the transmission control module are powered by the solar power supply module.

Compared with the prior art, the beneficial effects of the present invention are:

1) The method for monitoring the settlement and deformation of the waterway regulation software platform for low-water drainage proposed by the present invention can monitor the settlement and deformation of the low-water platform in real time and accurately;

2) The present invention can fill the technical shortcomings of real-time monitoring of settlement and deformation of the current waterway regulation software for drainage platforms, and has a promoting effect on the development of multi-source monitoring technology for the service status of inland waterway regulation buildings.

Description of drawings

FIG. 1 is a schematic diagram of the real-time monitoring system for the deformation of the waterway regulation software based on the distributed optical fiber of the present invention.

Figure 2 shows the cross-section of a typical dry platform and the location of the optical cable.

Figure 3 is a schematic view of the structure of the clamp.

FIG. 4 is a schematic view of the top-view structure of the clip.

FIG. 5 is a schematic top view of the structure of the gasket.

In the figure: 1-dry water platform, 2-high-intensity fixed-point optical cable, 3-high-intensity temperature compensation optical cable, 4-fiber demodulator, 5-transmission control module, 6-solar power supply module, 7-data acquisition and analysis module, 8- riprap layer of dry water platform, 9- software arrangement, 10- clip, 11- gasket, 12- fixing bolt, 13- temperature compensation optical cable fixing bayonet, 14- strain optic cable fixing bayonet, 15- Lay out stiffeners, 16-bolt holes.

Detailed ways

The present invention will be further described below in conjunction with specific embodiments.

A real-time monitoring system for the deformation of a waterway regulation software platform 1 based on distributed optical fibers, comprising a distributed high-strength fixed-point optical cable 2, an optical fiber demodulator 4, a transmission control module 5, a data acquisition and analysis module 7, and a solar power supply module 6 ;

The distributed high-strength fixed-point optical cable 2 is fixed on the soft-body arrangement 9 under the boulders with the construction of the dry-water platform 1, and is used for real-time monitoring of the settlement and deformation of the dry-water platform 1. The distributed high-strength fixed-point optical cable 2 After leading to the shore, intervene in the optical fiber demodulator 4;

The optical fiber demodulator 4 is used to analyze the optical signal of the sensing optical cable, so as to sense the settlement deformation of the low-water platform 1, and the optical fiber demodulator 4 transmits the measurement data obtained by the analytical measurement to the transmission control module. 5;

The transmission control module 5 transmits the measurement data from the optical fiber demodulator 4 to the data acquisition and analysis module 7, and receives the measurement order sent by the data acquisition and analysis module 7, and then transmits the received measurement order to the optical fiber solution. Modulator 4, to realize the timing and real-time measurement of the deformation of the sensing optical cable by the fiber demodulator 4;

The solar power supply module 6 is connected to the optical fiber demodulator 4 and the transmission control module 5 to provide power for the optical fiber demodulator 4 and the transmission control module 5 .

A high-strength temperature compensating optical fiber of the same length as the distributed high-strength fixed-point optical fiber cable 2 is arranged in parallel beside the distributed high-strength fixed-point optical fiber cable 2 , and both are finally led to the onshore intervention optical fiber demodulator 4 .

The distributed high-strength fixed-point optical cable 2 and the high-strength temperature compensation optical fiber are synchronously fixed along the length of the dry platform 1 along the length of the dry platform 1 , and are centrally fixed on the soft body arrangement 9 under the boulder.

The clamp includes a clip 10, a gasket 11 and a fixing bolt 12. The clip 10 has two raised bayonets, which are the strain optical cable fixing bayonet 14 and the temperature compensation optical cable fixing bayonet 13; The clip 10 is installed on the gasket 11, and both ends of the clip 10 and the gasket 11 are installed and fixed by fixing bolts 12; The arrangement reinforcement strips 15 pass through the gap between the clip 10 and the gasket 11, and the strain optical cable fixing bayonet 14 and the temperature compensation optical cable fixing bayonet 13 respectively fix the strained optical cable and the temperature compensation optical cable in the arrangement reinforcement. Article 15.

The strained optical cable fixing bayonet 14 is fixed with the distributed high-strength fixed-point optical cable 2 passing through it, and the temperature-compensating optical cable fixing bayonet 13 is fixed with the high-strength temperature-compensating optical fiber passing through it; The length and width of the clip 10 and the gasket 11 are the same, the width of the strained optical cable fixing bayonet 14 is the same as the diameter of the distributed high-strength fixed-point optical cable 2, and the height is 1-1.5mm smaller than the diameter of the distributed high-strength fixed-point optical cable 2, The height and width of the fixing bayonet 13 of the temperature-compensated optical fiber are the same as the diameter of the high-strength temperature-compensated optical fiber.

The transmission control module 5 has wireless receiving and transmitting terminals, and the transmission control module 5 is connected with the data acquisition and analysis module 7 through wireless signals to remotely realize the timing and real-time measurement of the deformation of the sensing optical cable by the optical fiber demodulator 4 .

A method for real-time monitoring of deformation of a waterway regulation software platform 1 based on distributed optical fibers, comprising the following steps:

S1: After completing the construction and debugging of the real-time monitoring system, use the data acquisition and analysis module 7 to set the monitoring time and issue a measurement command;

S2: After receiving the measurement command, the transmission control module 5 controls the optical fiber demodulator 4 to measure the distributed high-intensity fixed-point optical cable 2 and the high-intensity temperature compensation optical cable 3;

S3: after each measurement of the optical fiber demodulator 4 is completed, the measurement data is transmitted to the data acquisition and analysis module 7 via the transmission control module 5;

S4: The data acquisition and analysis module 7 analyzes and calculates the received optical cable deformation data, obtains the settlement deformation amount of the low-water platform 1, and performs real-time monitoring;

S5: During the operation of the entire real-time monitoring system, the optical fiber demodulator 4 and the transmission control module 5 are powered by the solar power supply module 6 .

The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Any person skilled in the art, without departing from the scope of the technical solution of the present invention, according to the technical essence of the present invention, Any simple modifications, equivalent replacements and improvements made in the above embodiments still fall within the protection scope of the technical solutions of the present invention.

Claims (7)

1. The utility model provides a channel renovation software drainage withered water platform deformation real-time monitoring system based on distributed optical fiber which characterized in that: the system comprises a distributed high-strength fixed-point optical cable, an optical fiber demodulator, a transmission control module, a data acquisition and analysis module and a solar power supply module;

the distributed high-strength fixed-point optical cables are fixed on soft body row arrangement below the rock blocks along with construction of the dry water platform and used for monitoring settlement deformation of the dry water platform in real time, and the distributed high-strength fixed-point optical cables are introduced into an optical fiber demodulator after being introduced to the shore;

the optical fiber demodulator is used for analyzing the optical signal of the sensing optical cable so as to sense the settlement deformation of the dry water platform, and the optical fiber demodulator transmits the measurement data obtained through analysis and determination to the transmission control module;

the transmission control module transmits the measurement data transmitted by the optical fiber demodulator to the data acquisition and analysis module, receives the measurement command transmitted by the data acquisition and analysis module, and transmits the received measurement command to the optical fiber demodulator, so that the optical fiber demodulator can measure the deformation of the sensing cable at regular time and in real time;

the solar power supply module is connected with the optical fiber demodulation instrument and the transmission control module and provides electric energy for the optical fiber demodulation instrument and the transmission control module.

2. The system for monitoring deformation of the withered water draining platform of the channel improvement software based on the distributed optical fibers in real time is characterized in that: and high-strength temperature compensation optical fibers with the same length as the distributed high-strength fixed point optical cable are parallelly distributed beside the distributed high-strength fixed point optical cable and are all finally led to an onshore intervention optical fiber demodulator.

3. The system for monitoring the deformation of the withered water draining platform of the channel improvement software based on the distributed optical fibers in real time is characterized in that: the distributed high-strength fixed-point optical cable and the high-strength temperature compensation optical fiber are synchronously fixed on the soft row below the block stone in the construction process along the length direction of the dry platform by using the clamp in the middle.

4. The system for monitoring deformation of the withered water draining platform of the channel improvement software based on the distributed optical fibers in real time is characterized in that: the fixture comprises a clamping piece, a gasket and a fixing bolt, wherein the clamping piece is provided with two raised bayonets, namely a strain optical cable fixing bayonet and a temperature compensation optical cable fixing bayonet, the clamping piece is arranged on the gasket, and the clamping piece and the two ends of the gasket are fixedly arranged through the fixing bolt.

5. The system for monitoring deformation of the withered water draining platform of the channel improvement software based on the distributed optical fibers in real time is characterized in that: the strain optical cable and the temperature compensation optical cable are respectively fixed on the arrangement reinforcing bars by the strain optical cable fixing bayonet and the temperature compensation optical cable fixing bayonet.

6. The system for monitoring deformation of the withered water draining platform of the channel improvement software based on the distributed optical fibers in real time is characterized in that: the transmission control module is provided with a wireless receiving end and a wireless transmitting end and is connected with the data acquisition and analysis module through wireless signals, so that the timing and the instant measurement of the deformation of the sensing cable by the optical fiber demodulator are realized remotely.

7. A real-time monitoring method for the deformation of a channel improvement software withered water draining platform based on distributed optical fibers is characterized by comprising the following steps: the real-time monitoring system for the deformation of the water-withering platform of the distributed optical fiber-based channel-renovating software comprises the following steps:

s1: after the construction and debugging of the real-time monitoring system are completed, setting monitoring time by using a data acquisition and analysis module and sending a measurement command;

s2: the transmission control module receives the measurement command and then controls the optical fiber demodulator to measure the distributed high-strength fixed-point optical cable and the high-strength temperature compensation optical cable;

s3: after the optical fiber demodulator finishes measuring each time, the measured data is transmitted to the data acquisition and analysis module through the transmission control module;

s4: the data acquisition and analysis module analyzes and calculates the received optical cable deformation data to obtain the settlement deformation of the dry platform and carries out real-time monitoring;

s5: in the operation process of the whole real-time monitoring system, the optical fiber demodulator and the transmission control module are powered by the solar power supply module.

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