CN111928891A - Large-span line vibration monitoring device and monitoring method - Google Patents
Large-span line vibration monitoring device and monitoring method Download PDFInfo
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- CN111928891A CN111928891A CN202010716042.0A CN202010716042A CN111928891A CN 111928891 A CN111928891 A CN 111928891A CN 202010716042 A CN202010716042 A CN 202010716042A CN 111928891 A CN111928891 A CN 111928891A
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- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention provides a large-span line vibration monitoring device and a monitoring method, which comprise the following steps: the device comprises an ultrasonic wind speed and direction sensor, a hollow shell, a temperature sensor, an accelerometer and a communication unit, wherein the temperature sensor, the accelerometer and the communication unit are arranged in the shell; the shell is fixed on the extra-high voltage or large-span lead; the ultrasonic wind speed and direction sensor is arranged above the shell; the ultrasonic wind speed and direction sensor, the temperature sensor and the accelerometer are all connected with the communication unit; the temperature sensor is used for acquiring the temperature of the lead; the ultrasonic wind speed and direction sensor is used for acquiring wind speed and direction; the accelerometer is used for acquiring the vibration acceleration of the lead; the communication unit is in communication connection with the remote server and is used for realizing data communication between the vibration monitoring device and the remote server; the ultrasonic wind speed and direction sensor, the temperature sensor and the accelerometer are integrated in one device, so that the aerodynamic force, the temperature and the vibration response of the wire can be synchronously measured at the same time.
Description
Technical Field
The invention relates to the technical field of monitoring and preventing breeze vibration of overhead transmission lines, in particular to a large-span line vibration monitoring device and a monitoring method.
Background
The breeze vibration amplitude exceeds the warning value, which can cause fatigue damage of some circuit components, such as fatigue strand breakage of the ground wire, fatigue damage or abrasion of hardware fittings, spacers and pole tower components, and the like. Especially, the vibration energy of wind to the ground wire is greatly increased due to the continuous increase of the section, tension, height of a suspension point and span of a lead of an extra-high voltage and large-span line, and the vibration intensity is far higher than that of a common line and serious. Due to the characteristic of breeze vibration, high frequency and small amplitude, the wind vibration is difficult to find in the operation and maintenance of the line and has certain concealment. The line wear and even fatigue and strand breakage are usually discovered, and at the moment, serious harm is brought to the safe operation of a power grid. In recent years, the problem of breeze vibration of power transmission lines is more prominent, and the safe operation of the power transmission lines, particularly large-span lines, is seriously threatened.
The vibration frequency and amplitude of the lead, the pneumatic load and the temperature are main parameters for evaluating the breeze vibration state and risk evaluation of the power transmission line. In order to obtain the breeze vibration condition of the ground wire, the vibration level is currently mainly evaluated by measuring the vibration amplitude and frequency. The existing breeze vibration monitoring device has the following limitations:
1) the monitoring variable is mainly the response quantity of acceleration, displacement and the like, and the monitoring of wind load is lacked;
2) the monitoring duration of the breeze vibration of the ground wire is mainly short-term monitoring due to system power consumption and a line energy taking means;
3) anemorumbometers and breeze vibration used for monitoring part of wind fields cannot be synchronously monitored by adopting a single monitoring device (the anemorumbometers are arranged on a tower, and a vibrating device is arranged on a guide wire);
4) the synchronous monitoring device for aerodynamic force, lead temperature and vibration response is lacked.
Disclosure of Invention
In order to solve the above-mentioned deficiencies in the prior art, the present invention provides a large span line vibration monitoring device, comprising: the device comprises an ultrasonic wind speed and direction sensor (3), a hollow shell, a temperature sensor (5), an accelerometer (6) and a communication unit, wherein the temperature sensor (5), the accelerometer (6) and the communication unit are arranged in the shell;
the shell is fixed on the extra-high voltage or large-span lead; the ultrasonic wind speed and direction sensor (3) is arranged above the shell;
the ultrasonic wind speed and direction sensor (3), the temperature sensor (5) and the accelerometer (6) are all connected with the communication unit;
the temperature sensor (5) is used for acquiring the temperature of the lead; the ultrasonic wind speed and direction sensor (3) is used for collecting wind speed and direction; the accelerometer (6) is used for acquiring the vibration acceleration of the lead; the communication unit is in communication connection with the remote server and is used for realizing data communication between the vibration monitoring device and the remote server.
Preferably, the communication unit is specifically configured to: and sending the wire temperature collected by the temperature sensor (5), the wind speed and direction collected by the ultrasonic wind speed and direction sensor (3) and the wire vibration acceleration collected by the accelerometer (6) to a remote server.
Preferably, the vibration monitoring device further includes: the data acquisition and storage unit and the CPU computing unit are connected with each other;
the data acquisition and storage unit is also respectively connected with the wind speed and direction sensor (3), the temperature sensor (5) and the accelerometer (6), and the CPU calculation unit is connected with the communication unit;
the data acquisition and storage unit is used for acquiring and storing the wire temperature acquired by the temperature sensor (5), the wind speed and direction acquired by the ultrasonic wind speed and direction sensor (3) and the vibration acceleration acquired by the accelerometer (6);
the CPU computing unit is used for processing the wind speed and the wind direction and the vibration acceleration stored in the data acquisition and storage unit to obtain the aerodynamic force, the vibration displacement and the dynamic bending strain of the wire;
the communication unit is used for sending the wire temperature, the wire aerodynamic force, the vibration displacement and the dynamic bending strain to the remote server.
Preferably, the housing includes: an upper case (1) and a lower case (2);
the upper shell (1) is positioned above the lower shell (2); the upper shell (1) and the lower shell (2) are connected through bolts;
the ultrasonic wind speed and direction sensor (3) is arranged above the upper shell (1);
the temperature sensor (5) is arranged in the upper shell (1);
the accelerometer (6), the communication unit, the data acquisition and storage unit and the CPU calculation unit are arranged in the lower shell.
Preferably, the housing further comprises: a floating snap ring (11) and a fixed snap ring (12);
the floating clamping ring (11) and the fixed clamping ring (12) are arranged between the upper shell (1) and the lower shell (2) in parallel;
the fixed clamping ring (12) is fixedly connected with the lower shell (2), and the floating clamping ring (11) is in sliding connection with the lower shell (2) and is used for adjusting the distance between the floating clamping ring (11) and the fixed clamping ring (12);
the floating clamp ring (11) and the fixed clamp ring (12) are both of arch structures which are separated from each other up and down, and the arch structures are used for a lead to pass through and fix the lead;
hollow grooves are formed in the floating clamping ring (11) and the fixed clamping ring (12);
the number of the accelerometers (6) is 2, and the accelerometers are respectively arranged in the hollow-out grooves of the floating clamping ring (11) and the fixed clamping ring (12).
Preferably, the housing further comprises: a first stop device (13) and a second stop device (14);
the first limiting device (13) and the second limiting device (14) are respectively arranged on two sides of the floating clamping ring (11);
the lower shell (2) is provided with a strip-shaped bolt hole, and the first limiting device (13) and the second limiting device (14) are fixed on the strip-shaped bolt hole through bolts;
the bolt can slide on the bolt hole of rectangular shape under not hard up state, drives first stop device (13) and second stop device (14) and slides, and then adjusts the interval of floating snap ring (11) and fixed snap ring (12).
Preferably, the distance between the floating clamping ring (11) and the fixed clamping ring (12) is 85-95 mm.
Preferably, a microstrip antenna (9) is further arranged on the upper shell (1);
the microstrip antenna (9) is connected with the communication unit.
Preferably, an elastic rubber column (10) is further arranged in the upper shell (1);
one end of the rubber column (10) is connected with the upper shell (1), and the other end of the rubber column extrudes the temperature sensor (5) to be in contact connection with the lead.
Preferably, the device further comprises a battery module (8) and a plurality of solar panels (4);
the battery module (8) is respectively connected with the solar panel (4) and the communication unit; the battery module (8) is arranged in the lower shell (2);
the solar cell panel (4) is arranged on the outer wall of the lower shell (2) and the top of the ultrasonic wind speed and direction sensor (3).
Preferably, an electromagnetic shielding shell made of an electromagnetic shielding material is further arranged outside the battery module (8).
Preferably, the exterior of the microstrip antenna (9) is encapsulated by a non-shielding waterproof material.
Preferably, the temperature sensor (5) is a platinum resistance temperature sensor.
Preferably, the accelerometer (6) adopts a 3-axis accelerometer or a 3-axis gyroscope compound 6-axis MEMS accelerometer.
Preferably, the communication unit adopts an NB-IOT communication mode.
Based on the unified design idea, the invention also provides a large-span line vibration monitoring method, which comprises the following steps:
installing a large-span line vibration monitoring device on an extra-high voltage or large-span lead;
the temperature of a lead is measured by using a temperature sensor (5), the wind speed and direction are measured by using an ultrasonic wind speed and direction sensor (3), and the vibration acceleration of the lead is measured by using an accelerometer (6); and transmitted to the remote server using the communication unit.
Compared with the closest prior art, the invention has the beneficial effects that:
1. the invention provides a large-span line vibration monitoring device and a monitoring method, which comprise the following steps: the device comprises an ultrasonic wind speed and direction sensor (3), a hollow shell, a temperature sensor (5), an accelerometer (6) and a communication unit, wherein the temperature sensor (5), the accelerometer (6) and the communication unit are arranged in the shell; the shell is fixed on the extra-high voltage or large-span lead; the ultrasonic wind speed and direction sensor (3) is arranged above the shell; the ultrasonic wind speed and direction sensor (3), the temperature sensor (5) and the accelerometer (6) are all connected with the communication unit; the temperature sensor (5) is used for acquiring the temperature of the lead; the ultrasonic wind speed and direction sensor (3) is used for collecting wind speed and direction; the accelerometer (6) is used for acquiring the vibration acceleration of the lead; the communication unit is in communication connection with the remote server and is used for realizing data communication between the vibration monitoring device and the remote server; the ultrasonic wind speed and direction sensor, the temperature sensor and the accelerometer are integrated in one device, so that the aerodynamic force, the temperature and the vibration response of the wire can be synchronously measured at the same time.
Drawings
FIG. 1: the apparatus structure of the invention;
FIG. 2: appearance diagram of the device of the invention;
FIG. 3: internal view of the apparatus of the present invention;
FIG. 4: the snap ring structure of the invention;
FIG. 5: a method flow diagram of the present invention;
reference numerals:
the device comprises an upper shell, a lower shell, a 3-ultrasonic wind speed and direction sensor, a 4-solar panel, a 5-temperature sensor, a 6-accelerometer, a 7-main control circuit board, a 8-battery module, a 9-microstrip antenna, a 10-rubber column, a 11-floating snap ring, a 12-fixed snap ring, a 13-first limiting device and a 14-second limiting device.
Detailed Description
For better understanding of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
The invention provides a large-span line vibration monitoring device, as shown in fig. 1, comprising: the device comprises an ultrasonic wind speed and direction sensor 3, a hollow shell, a temperature sensor 5, a plurality of accelerometers 6 and a main control circuit board 7, wherein the temperature sensor 5, the plurality of accelerometers and the main control circuit board are arranged in the shell;
the shell is fixed on the extra-high voltage or large-span lead; the ultrasonic wind speed and direction sensor 3 is arranged above the shell;
the ultrasonic wind speed and direction sensor 3, the temperature sensor 5 and the accelerometer 6 are all connected with the main control circuit board 7;
the main control circuit board 7 is connected with a remote server;
and the main control circuit board 7 processes the wire temperature acquired by the temperature sensor 5, the wind speed and the wind direction acquired by the ultrasonic wind speed and wind direction sensor 3 and the wire vibration acceleration acquired by the accelerometer 6 to obtain the aerodynamic force, the vibration displacement and the dynamic bending strain of the wire and sends the aerodynamic force, the vibration displacement and the dynamic bending strain of the wire to the remote server.
The main control circuit board 7 includes: the data acquisition and storage unit, the CPU calculation unit and the communication unit are connected with each other;
the data acquisition and storage unit is used for acquiring and storing the wire temperature acquired by the temperature sensor 5, the wind speed and direction acquired by the ultrasonic wind speed and direction sensor 3 and the vibration acceleration acquired by the accelerometer 6;
the CPU computing unit is used for processing the wire temperature, the wind speed and the wind direction and the vibration acceleration acquired by the data acquisition and storage unit to obtain the aerodynamic force, the vibration displacement and the dynamic bending strain of the wire;
and the communication unit sends the wire temperature, the wire aerodynamic force, the vibration displacement and the dynamic bending strain to a remote server.
The main control circuit board 7 of the present invention may also only include a communication unit; the obtained and stored wire temperature collected by the temperature sensor 5, the wind speed and direction collected by the ultrasonic wind speed and direction sensor 3 and the vibration acceleration collected by the accelerometer 6 are sent to a remote server, and the server processes the wind speed and direction collected by the ultrasonic wind speed and direction sensor 3 and the vibration acceleration collected by the accelerometer 6 to obtain the aerodynamic force, the vibration displacement and the dynamic bending strain of the wire.
An algorithm for calculating aerodynamic force of the conducting wire according to wind speed and wind direction and an algorithm for calculating vibration displacement and dynamic bending strain according to vibration acceleration are embedded in the CPU calculation unit.
As shown in fig. 2, the housing includes: an upper case 1 and a lower case 2;
the upper shell 1 is positioned above the lower shell 2;
the ultrasonic wind speed and direction sensor 3 is arranged above the upper shell 1;
the temperature sensor 5 is arranged in the upper shell 1;
the accelerometer 6 and the main control circuit board 7 are arranged in the lower shell;
the upper casing 1 and the lower casing 2 are connected by bolts.
As shown in fig. 3, the housing further includes: a floating snap ring 11 and a fixed snap ring 12;
the floating snap ring 11 and the fixed snap ring 12 are arranged between the upper shell 1 and the lower shell 2 in parallel;
the fixed snap ring 12 is fixedly connected with the lower shell 2, and the floating snap ring 11 is connected with the lower shell 2 in a sliding manner and used for adjusting the distance between the floating snap ring 11 and the fixed snap ring 12;
as shown in fig. 4, the floating snap ring 11 and the fixed snap ring 12 are both arch structures separated from each other in the up-down direction, and the arch structures are used for a lead to pass through and fix the lead;
hollow grooves are formed in the floating clamping ring 11 and the fixed clamping ring 12;
the number of the accelerometers 6 is 2, and the accelerometers are respectively arranged in the hollow-out grooves of the floating clamp ring 11 and the fixed clamp ring 12.
The housing further includes: a first stop device 13 and a second stop device 14;
the first limiting device 13 and the second limiting device 14 are respectively arranged at two sides of the floating snap ring 11;
the lower shell 2 is provided with a strip-shaped bolt hole, and the first limiting device 13 and the second limiting device 14 are fixed on the strip-shaped bolt hole through bolts;
the bolt can slide on the bolt hole of rectangular shape under not hard up state, drives first stop device 13 and second stop device 14 and slides, and then adjusts the interval of floating snap ring 11 and fixed snap ring 12.
The distance between the floating snap ring 11 and the fixed snap ring 12 is 85 mm-95 mm.
The upper shell 1 is also provided with a microstrip antenna 9;
the microstrip antenna 9 is connected with the communication unit.
An elastic rubber column 10 is also arranged in the upper shell 1;
one end of the rubber column 10 is connected with the upper shell 1, and the other end of the rubber column extrudes the temperature sensor 5 to be in contact connection with a lead.
The device further comprises a battery module 8 and a plurality of solar panels 4;
the battery module 8 is respectively connected with the solar panel 4 and the main control circuit board 7; the battery module 8 is disposed in the lower case 2;
the solar cell panel 4 is arranged on the outer wall of the lower shell 2 and the top of the ultrasonic wind speed and direction sensor 3.
And electromagnetic shielding shells made of electromagnetic shielding materials are respectively arranged outside the main control circuit board 7 and the battery module 8.
The exterior of the microstrip antenna 9 is encapsulated by a non-shielding waterproof material.
The temperature sensor 5 is a platinum resistance temperature sensor.
The accelerometer 6 adopts a 3-axis accelerometer or a 6-axis MEMS accelerometer compounded by a 3-axis gyroscope.
The communication unit adopts an NB-IOT communication mode.
Specifically, a stride across circuit vibration monitoring devices greatly comprises separable upper casing 1, lower casing 2, ultrasonic wave wind speed sensor 3, solar cell panel 4, temperature sensor 5, accelerometer 6, main control circuit board 7, battery module 8, microstrip antenna 9.
The device body comprises last casing 1 and casing 2 down, and the material of going up casing 1 and casing 2 down is anodic aluminum oxide, and the casing passes through bolted connection from top to bottom, and chamfer and smooth processing are carried out in order to reduce the corona to the surface.
The top of the upper shell 1 of the device is provided with an ultrasonic wind speed and direction sensor 3 and a microstrip antenna 9, and the inside of the upper shell is provided with a temperature sensor 5.
The device is characterized in that a floating clamp ring 11 and a fixed clamp ring 12 are arranged in a lower shell, the clamp rings are of arch structures separated from each other from top to bottom, hollow grooves are formed in the lower portions of the clamp rings, 1 acceleration sensor 6 is arranged in each groove, and the distance between the two acceleration sensors is 89 mm.
The device is characterized in that a main control circuit board 7 and a battery module 8 are arranged in a lower shell 2 of the device, the main control circuit board comprises a data acquisition and storage unit, a CPU (central processing unit) calculation unit and a communication unit, and the main control circuit board is used for acquiring, storing, operating and communicating data of the wind speed, direction, temperature and acceleration sensors.
The device is connected with a lead through a floating snap ring 11 and a fixed snap ring 12, and a rubber elastic protective layer is arranged at the contact part of the inside of the snap ring and the lead.
The utility model discloses a device, including fixing snap ring 12 and lower casing 2, floating snap ring 11 utilizes first stop device 13 and second stop device 14 to install the location when the installation, and first stop device 13 and second stop device 14 utilize the bolt fastening on casing 2 down, guarantee that two accelerometers 6 intervals are 89mm when the device installation, and after the installation was accomplished, the dead slot of the usable 2 bottoms of casing of first stop device 13 and second stop device 14 was withdrawn from to floating snap ring 11 both sides respectively, and the release is spacing to floating snap ring 11.
The floating clamp ring 11 is only connected with the main control circuit board 7 through a flexible shielding signal wire after being released by the first limiting device 13 and the second limiting device 14, and the whole device is only fixed with a lead through the fixed floating clamp ring 12, so that the influence of the measuring device on the vibration characteristic of the 89mm section of lead to be measured is reduced.
And electromagnetic shielding shells made of electromagnetic shielding materials are wrapped outside the main control circuit board 7 and the battery module 8.
Two solar cell panels 4 are arranged outside the lower shell 2 of the device, and a round solar cell panel 4 is arranged at the top of the ultrasonic sensor and used for charging the battery module 8.
The bottom of the lower shell of the device is provided with a drain hole.
The temperature sensor 5 is connected with the upper shell 1 through the rubber column 10, and the rubber column 10 can provide certain pre-pressure for the temperature sensor 5 when being installed, so that a good contact surface between the temperature sensor 5 and a lead is ensured.
The temperature sensor 10 is preferably a platinum resistance temperature sensor.
The microstrip antenna 9 is packaged by a non-shielding waterproof material and is arranged in the groove of the upper shell.
The accelerometer 6 is mainly used for measuring the vibration response of the conducting wire, and a 6-axis MEMS accelerometer compounded by a 3-axis accelerometer and a 3-axis gyroscope is preferred.
The communication unit on the main control circuit board 7 preferably adopts an NB-IOT communication mode.
And an algorithm for measuring the displacement and the dynamic bending strain of the wire according to the acceleration and calculating the aerodynamic force and the vibration frequency based on the wind speed on the surface of the wire is embedded in the CPU calculation module.
The device makes up the current situation that at present, wind speed and vibration monitoring devices are rarely measured on the wires at the same time, is more intelligent and low in power consumption compared with the traditional breeze vibration monitoring devices, can meet the requirement of long-term continuous measurement, and can simultaneously realize the synchronous measurement of aerodynamic force, temperature and vibration response of the wires.
Example 2
The invention provides a large-span line vibration monitoring method, as shown in fig. 5, comprising the following steps:
installing a large-span line vibration monitoring device on an extra-high voltage or large-span lead;
the temperature sensor 5 is used for measuring the temperature of the lead, the ultrasonic wind speed and direction sensor 3 is used for measuring the wind speed and direction, and the accelerometer 6 is used for measuring the vibration acceleration of the lead; and transmitted to the remote server using the communication unit.
Specifically, a temperature sensor 5 of the large-span line vibration monitoring device is used for measuring the temperature of the lead, an ultrasonic wind speed and direction sensor 3 of the large-span line vibration monitoring device is used for measuring the wind speed and the wind direction, and an accelerometer 6 of the large-span line vibration monitoring device is used for measuring the vibration acceleration of the lead;
and a main control circuit board 7 of the large-span line vibration monitoring device is used for processing the temperature of the lead measured by the temperature sensor 5, the wind speed and the wind direction measured by the ultrasonic wind speed and wind direction sensor 3 and the vibration acceleration of the lead measured by the accelerometer 6 to obtain the aerodynamic force, the vibration displacement and the dynamic bending strain of the lead and sending the aerodynamic force, the vibration displacement and the dynamic bending strain of the lead to a remote server.
Utilize main control circuit board 7 of striding across circuit vibration monitoring devices greatly to handle the wire temperature that temperature sensor 5 measured and the wind speed wind direction that ultrasonic wave wind speed wind direction sensor 3 measured and the wire vibration acceleration that accelerometer 6 measured and obtain wire aerodynamic force, vibration displacement and move the bending strain and send for distal end server, include:
the data acquisition and storage unit of the main control circuit board 7 acquires and stores the wire temperature acquired by the temperature sensor 5, the wind speed and direction acquired by the ultrasonic wind speed and direction sensor 3 and the vibration acceleration acquired by the accelerometer 6;
the CPU computing unit of the main control circuit board 7 processes the wind speed and direction acquired by the ultrasonic wind speed and direction sensor 3 and the vibration acceleration acquired by the accelerometer 6 to obtain the aerodynamic force, vibration displacement and dynamic bending strain of the lead;
and the communication unit of the main control circuit board 7 sends the wire temperature acquired by the temperature sensor 5 and the wire aerodynamic force, vibration displacement and dynamic bending strain obtained by the processing of the CPU calculation unit to a remote server.
Specifically, the method for monitoring the vibration of the long-span line comprises the following steps:
mounting the device on an extra-high voltage or large-span lead;
the built-in wind speed and direction sensor 3 is adopted to measure the wind speed and the wind direction on the surface of the wire, the built-in accelerometer 6 is adopted to measure the vibration acceleration of the wire, and the vibration acceleration is collected by the collecting unit and stored in the storage unit;
the method comprises the steps of calculating aerodynamic force, vibration displacement and dynamic bending strain of a lead by adopting an algorithm embedded in a CPU (central processing unit) calculation module arranged in the device, and storing a calculation result into a storage unit;
the communication module built in the device of the invention is adopted to send the original measurement data and the calculation result to the background server periodically.
According to the method, the device is arranged on the lead, so that automatic measurement, collection, storage, calculation and transmission from the breeze vibration wind load of the lead to the vibration response can be realized.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are included in the scope of the claims of the present invention which are filed as the application.
Claims (16)
1. A large span line vibration monitoring device, comprising: the device comprises an ultrasonic wind speed and direction sensor (3), a hollow shell, a temperature sensor (5), an accelerometer (6) and a communication unit, wherein the temperature sensor (5), the accelerometer (6) and the communication unit are arranged in the shell;
the shell is fixed on the extra-high voltage or large-span lead; the ultrasonic wind speed and direction sensor (3) is arranged above the shell;
the ultrasonic wind speed and direction sensor (3), the temperature sensor (5) and the accelerometer (6) are all connected with the communication unit;
the temperature sensor (5) is used for acquiring the temperature of the lead; the ultrasonic wind speed and direction sensor (3) is used for collecting wind speed and direction; the accelerometer (6) is used for acquiring the vibration acceleration of the lead; the communication unit is in communication connection with the remote server and is used for realizing data communication between the vibration monitoring device and the remote server.
2. The large span line vibration monitoring device of claim 1, wherein the communication unit is specifically configured to: and sending the wire temperature collected by the temperature sensor (5), the wind speed and direction collected by the ultrasonic wind speed and direction sensor (3) and the wire vibration acceleration collected by the accelerometer (6) to a remote server.
3. A large span line vibration monitoring device as defined in claim 1, wherein said vibration monitoring device further comprises: the data acquisition and storage unit and the CPU computing unit are connected with each other;
the data acquisition and storage unit is also respectively connected with the wind speed and direction sensor (3), the temperature sensor (5) and the accelerometer (6), and the CPU calculation unit is connected with the communication unit;
the data acquisition and storage unit is used for acquiring and storing the wire temperature acquired by the temperature sensor (5), the wind speed and direction acquired by the ultrasonic wind speed and direction sensor (3) and the vibration acceleration acquired by the accelerometer (6);
the CPU computing unit is used for processing the wind speed and the wind direction and the vibration acceleration stored in the data acquisition and storage unit to obtain the aerodynamic force, the vibration displacement and the dynamic bending strain of the wire;
the communication unit is used for sending the wire temperature, the wire aerodynamic force, the vibration displacement and the dynamic bending strain to the remote server.
4. A large span line vibration monitoring device as defined in claim 3 wherein said housing comprises: an upper case (1) and a lower case (2);
the upper shell (1) is positioned above the lower shell (2); the upper shell (1) and the lower shell (2) are connected through bolts;
the ultrasonic wind speed and direction sensor (3) is arranged above the upper shell (1);
the temperature sensor (5) is arranged in the upper shell (1);
the accelerometer (6), the communication unit, the data acquisition and storage unit and the CPU calculation unit are arranged in the lower shell.
5. The large span line vibration monitoring device of claim 4 wherein said housing further comprises: a floating snap ring (11) and a fixed snap ring (12);
the floating clamping ring (11) and the fixed clamping ring (12) are arranged between the upper shell (1) and the lower shell (2) in parallel;
the fixed clamping ring (12) is fixedly connected with the lower shell (2), and the floating clamping ring (11) is in sliding connection with the lower shell (2) and is used for adjusting the distance between the floating clamping ring (11) and the fixed clamping ring (12);
the floating clamp ring (11) and the fixed clamp ring (12) are both of arch structures which are separated from each other up and down, and the arch structures are used for a lead to pass through and fix the lead;
hollow grooves are formed in the floating clamping ring (11) and the fixed clamping ring (12);
the number of the accelerometers (6) is 2, and the accelerometers are respectively arranged in the hollow-out grooves of the floating clamping ring (11) and the fixed clamping ring (12).
6. The large span line vibration monitoring device of claim 5 wherein said housing further comprises: a first stop device (13) and a second stop device (14);
the first limiting device (13) and the second limiting device (14) are respectively arranged on two sides of the floating clamping ring (11);
the lower shell (2) is provided with a strip-shaped bolt hole, and the first limiting device (13) and the second limiting device (14) are fixed on the strip-shaped bolt hole through bolts;
the bolt can slide on the bolt hole of rectangular shape under not hard up state, drives first stop device (13) and second stop device (14) and slides, and then adjusts the interval of floating snap ring (11) and fixed snap ring (12).
7. A vibration monitoring device for a long span line according to claim 5, characterized in that the distance between the floating snap ring (11) and the fixed snap ring (12) is 85 mm-95 mm.
8. A large span line vibration monitoring device according to claim 4, characterized in that the upper casing (1) is further provided with a microstrip antenna (9);
the microstrip antenna (9) is connected with the communication unit.
9. A large span line vibration monitoring device according to claim 4, characterized in that the upper shell (1) is provided with an elastic rubber column (10);
one end of the rubber column (10) is connected with the upper shell (1), and the other end of the rubber column extrudes the temperature sensor (5) to be in contact connection with the lead.
10. A large span line vibration monitoring device according to claim 4, characterized in that the device further comprises a battery module (8) and a plurality of solar panels (4);
the battery module (8) is respectively connected with the solar panel (4) and the communication unit; the battery module (8) is arranged in the lower shell (2);
the solar cell panel (4) is arranged on the outer wall of the lower shell (2) and the top of the ultrasonic wind speed and direction sensor (3).
11. A large span line vibration monitoring device according to claim 10, wherein said battery module (8) is externally provided with an electromagnetic shielding case made of an electromagnetic shielding material.
12. A large span line vibration monitoring device according to claim 9, wherein the microstrip antenna (9) is externally encapsulated by a non-shielding waterproof material.
13. A large span line vibration monitoring device as claimed in claim 1, wherein said temperature sensor (5) is a platinum resistance temperature sensor.
14. A large span line vibration monitoring device according to claim 1, wherein said accelerometer (6) is a 3-axis accelerometer or a 3-axis gyroscope complex 6-axis MEMS accelerometer.
15. The device of claim 2, wherein the communication unit is configured to communicate using NB-IOT communication.
16. A method for monitoring vibration of a long-span line is characterized by comprising the following steps:
installing a large-span line vibration monitoring device on an extra-high voltage or large-span lead;
the temperature of a lead is measured by using a temperature sensor (5), the wind speed and direction are measured by using an ultrasonic wind speed and direction sensor (3), and the vibration acceleration of the lead is measured by using an accelerometer (6); and transmitted to the remote server using the communication unit.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353862A (en) * | 2021-12-09 | 2022-04-15 | 中国电力科学研究院有限公司 | Transmission line ground wire galloping monitoring and alarming device and alarming method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353862A (en) * | 2021-12-09 | 2022-04-15 | 中国电力科学研究院有限公司 | Transmission line ground wire galloping monitoring and alarming device and alarming method |
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