CN218937445U - Multi-parameter monitoring device for large-span line - Google Patents
Multi-parameter monitoring device for large-span line Download PDFInfo
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- CN218937445U CN218937445U CN202120253557.1U CN202120253557U CN218937445U CN 218937445 U CN218937445 U CN 218937445U CN 202120253557 U CN202120253557 U CN 202120253557U CN 218937445 U CN218937445 U CN 218937445U
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Abstract
The utility model provides a multi-parameter monitoring device for a large-span line, which comprises the following components: the wind speed sensor comprises a shell, a wind speed sensor (4) fixed outside the shell, a data acquisition device and a data processing module, wherein the data acquisition device and the data processing module are positioned inside the shell; the data processing module is respectively connected with the wind speed sensor (4) and the data acquisition device, and is used for calculating the data acquired by the wind speed sensor (4) and the data acquisition device to obtain a breeze vibration evaluation result, and uploading the evaluation result to the server. According to the technical scheme provided by the utility model, the data acquisition device and the wind speed sensor are arranged in the same device, so that the synchronous monitoring of wind speed and breeze vibration is realized.
Description
Technical Field
The utility model relates to the field of parameter monitoring, in particular to a multi-parameter monitoring device for a long-span line.
Background
The breeze vibration amplitude of the large-span line exceeds the warning value, and fatigue damage of line parts, such as fatigue strand breakage of a ground wire, fatigue damage or abrasion of hardware fittings, spacing bars and tower components, is easily caused. Especially, the continuous increase of the section, tension, hanging point height and span of the lead wire of the large-span line leads to the great increase of the vibration energy of wind to the lead wire and the ground wire, and the vibration intensity is far superior to that of the common line. The vibration characteristics of breeze vibration high frequency and micro amplitude cause the damage of the circuit to have certain concealment, and the damage is difficult to be found in the operation and maintenance of the circuit. Usually, the line wear and even fatigue strand breakage are discovered, and the line wear and even fatigue strand breakage cause serious damage to the safe operation of the power grid. In recent years, the problem of breeze vibration of the power transmission line is more prominent, and the safe operation of the power transmission line, particularly a large-span line, in China is seriously threatened.
The vibration frequency and amplitude of the lead, the wind field and the temperature are main parameters for the breeze vibration state evaluation and risk evaluation of the power transmission line. In order to obtain breeze vibration conditions of the conductive wires, vibration levels are currently evaluated mainly by measuring vibration amplitudes and frequencies. The existing breeze vibration monitoring device has the following limitations: 1) The monitoring variables mainly comprise acceleration, displacement and the like, and the synchronous wind field monitoring of the ground wire position is lacked; 2) The continuous monitoring time length of the breeze vibration of the ground wire is limited by the power consumption of the system and the energy taking means of the circuit, and mainly comprises short-term monitoring; 3) The device for synchronously monitoring wind speed, temperature and vibration response of the wind field of the ground wire is absent.
Disclosure of Invention
Aiming at the problems that monitoring variables in the prior art mainly comprise acceleration, displacement and the like, synchronous wind field monitoring is lacked, continuous monitoring duration of breeze vibration of a ground wire is limited by energy taking means of system power consumption and short-term monitoring is mainly carried out, the utility model provides a multi-parameter monitoring device of a large-span line, which comprises the following components:
the wind speed sensor comprises a shell, a wind speed sensor (4) fixed outside the shell, a data acquisition device and a data processing module, wherein the data acquisition device and the data processing module are positioned inside the shell;
the data processing module is respectively connected with the wind speed sensor (4) and the data acquisition device, and is used for calculating the data acquired by the wind speed sensor (4) and the data acquisition device to obtain a breeze vibration evaluation result, and uploading the evaluation result to the server.
Preferably, the shell comprises an upper device shell (1) and a lower device shell (2) which are hinged at one side;
the wind speed sensor (4) is fixed on the upper shell (1) of the device.
Preferably, a fixed clamping ring (7) and a movable clamping ring (6) are arranged on the lower shell (2) of the device;
the distance between the fixed clamping ring (7) and the movable clamping ring (6) is 80-90 mm;
the fixed clamping ring (7) and the lower shell (2) of the device are integrally designed;
the lower shell (2) of the device is provided with a hole;
the bolts pass through holes arranged on the lower shell (2) of the device to fix the movable clamping ring (6) on the lower shell (2) of the device.
Preferably, the data acquisition device includes: a temperature sensor (11) and an acceleration sensor (8);
the lower parts of a fixed clamping ring (7) and a movable clamping ring (6) of the lower shell (2) of the device are provided with hollow grooves;
the acceleration sensor (8) is arranged in the hollowed-out groove;
the temperature sensor (11) is in contact with the wire through a spring.
Preferably, the data processing module includes: the CPU computing unit and the communication unit are connected with each other;
the CPU calculation unit is used for calculating wire amplitude, dynamic bending strain, wind speed and vibration frequency according to data acquired by the wind speed sensor (4) and the acceleration sensor (8);
the communication unit is used for transmitting the wire amplitude, the dynamic bending strain, the wind speed and the vibration frequency calculated by the CPU calculation unit to the server in a wireless communication mode.
Preferably, the data processing module further comprises a data acquisition and storage unit for data storage.
Preferably, the power supply module is further included.
Preferably, the power module further includes: and the solar cell panel is connected with the power module.
Preferably, the communication unit adopts a microstrip antenna.
Preferably, the shell is a chamfer smooth shell.
Preferably, the movable clamping ring (6) comprises an arch structure which is separated up and down;
holes connected through shaft pins are symmetrically arranged at one end of the arch-shaped structures which are separated up and down, and the other end of the arch-shaped structures are connected through hinges.
Preferably, the fixed clamping ring (7) comprises an upper half part and a lower half part which are hinged at one end;
a hole is formed in the other end of the upper half part; the lower shell of the device is provided with a hole corresponding to the hole of the upper half part;
the shaft pin passes through the hole of the upper half part and the corresponding hole on the lower shell to fix the upper half part and the lower shell of the device;
the lower half is designed integrally with the device lower housing (2).
Preferably, a conductive rubber protection layer (13) is arranged on the inner side of the fixed clamping ring (7).
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a multi-parameter monitoring device for a large-span line, which comprises the following components: the wind speed sensor comprises a shell, a wind speed sensor (4) fixed outside the shell, a data acquisition device and a data processing module, wherein the data acquisition device and the data processing module are positioned inside the shell; the data processing module is respectively connected with the wind speed sensor (4) and the data acquisition device, and is used for calculating the data acquired by the wind speed sensor (4) and the data acquisition device to obtain a breeze vibration evaluation result, and uploading the evaluation result to the server. According to the technical scheme provided by the utility model, the data acquisition device and the wind speed sensor are arranged in the same device, so that the synchronous monitoring of wind speed and breeze vibration is realized.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the device of the present utility model;
FIG. 2 is a schematic view of the internal structure of the device of the present utility model;
FIG. 3 is a schematic view of a movable clasp of the device of the present utility model;
FIG. 4 is a schematic cross-sectional view of the apparatus of the present utility model;
FIG. 5 is a schematic cross-sectional view of a temperature sensor in the apparatus of the present utility model;
FIG. 6 is a flow chart of a method for monitoring multiple parameters of a large-span line according to the present utility model;
the device comprises a 1-device upper shell, a 2-device lower shell, a 3-solar cell panel, a 4-wind speed sensor, a 5-microstrip antenna, a 6-movable clamping ring, a 7-fixed clamping ring, an 8-acceleration sensor, a 9-main control circuit board, a 10-battery module, an 11-temperature sensor, a 12-spring and a 13-conductive rubber protective layer.
Detailed Description
The utility model mainly aims to overcome the defects in the prior art, and provides a multi-parameter monitoring device and a multi-parameter monitoring method for a large-span line with low power consumption, miniaturization and high integration level by utilizing an impeller anemometer and an accelerometer-based vibration measuring technology and by designing an intensive circuit and embedding an edge algorithm into a microprocessor, so that synchronous measurement and calculation from a wind field to response of the large-span and extra-high voltage line breeze vibration are realized, and field data support is provided for line breeze vibration disaster early warning, state evaluation and risk evaluation.
In order to achieve the above object, the present utility model is achieved by the following technical scheme: a large-span line multi-parameter monitoring device, as shown in fig. 1 and 4, comprising: the wind speed sensor comprises a shell, a power supply module, a wind speed sensor 4, a data acquisition device and a data processing module, wherein the wind speed sensor 4, the data acquisition device and the data processing module are respectively connected with the power supply module; the wind speed sensor 4 is fixed outside the shell; the data acquisition device and the data processing module are positioned in the shell;
the data processing module is respectively connected with the wind speed sensor 4 and the data acquisition device and is used for calculating and communicating the data acquired by the wind speed sensor 4 and the data acquisition device.
The wind speed sensor 4 adopts an impeller wind speed sensor, so that the wind load is monitored; the data processing module adopts a main control circuit board.
The device consists of an upper device shell 1, a lower device shell 2, an impeller wind speed sensor 4, a solar panel 3, a temperature sensor 11, an acceleration sensor 8, a main control circuit board 9, a battery module 10 and a microstrip antenna 5 which are connected through hinges.
The shell consists of an upper device shell 1 and a lower device shell 2, wherein the shell is made of anodic aluminum oxide, the upper device shell 1 and the lower device shell 2 are connected through a hinge on one side of the shell, and the outer surface of the shell is subjected to chamfering and smoothing treatment to reduce corona.
An impeller wind speed sensor 4 and a microstrip antenna 5 are arranged at the top of the upper shell 1 of the device, and a wire temperature sensor 11 is arranged in the device, as shown in fig. 5.
As shown in fig. 2, a fixed snap ring 7 and a movable snap ring 6 are arranged inside the lower casing 2 of the device, the fixed snap ring 7 and the lower casing 2 of the device are integrally designed, the movable snap ring 6 is of an arch structure which is separated from each other up and down as shown in fig. 3, hollow grooves are formed in the lower parts of the movable snap ring 6 and the fixed snap ring 7, 1 acceleration sensor 8 is respectively arranged in each hollow groove, and the distance between the two acceleration sensors 8 is 80-90 mm.
The device lower shell 2 is internally provided with a main control circuit board 9 and a battery module, wherein the main control circuit board 9 consists of a data acquisition and storage unit, a CPU (Central processing Unit) calculation unit and a communication unit and is used for acquiring, storing, operating and communicating data of the wind speed, wire temperature and wire vibration acceleration sensor 8.
The device is connected with a wire through a movable clamp ring 6 and a fixed clamp ring 7, and a conductive rubber protection layer 13 is arranged at the contact part between the inner parts of the movable clamp ring 6 and the fixed clamp ring 7 and the wire.
The main control circuit board 9 and the battery module are externally wrapped with electromagnetic shielding shells made of electromagnetic shielding materials.
A solar panel 3 is arranged outside the upper shell 1 of the device and is used for charging a battery module, so that long-term monitoring can be realized.
The bottom of the lower shell 2 of the device is provided with a drain hole.
The temperature sensor 11 is preferably a platinum resistance temperature sensor.
The microstrip antenna 5 is encapsulated by a non-shielding waterproof material and is arranged in a groove of the upper shell 1 of the device.
The acceleration sensor 8 is mainly used for measuring the vibration response of a wire, and is preferably a 3-axis accelerometer and 3-axis gyroscope combined 6-axis MEMS accelerometer.
The communication unit on the main control circuit board 9 preferably adopts a 4G communication mode.
The CPU calculation module is embedded with an algorithm for obtaining the amplitude of the wire according to acceleration data integration, calculating the dynamic bending strain and calculating the wind speed and vibration frequency based on the wind speed of the surface of the wire.
Example 2:
as shown in fig. 6, the multi-parameter monitoring method for the large-span line includes:
collecting data by a wind speed sensor 4 fixed outside the shell and a data collecting device positioned inside the shell;
and the data processing module positioned in the shell is used for calculating the acquired data to obtain a breeze vibration evaluation result.
Preferably, the data processing module located inside the housing calculates the collected data to obtain a breeze vibration evaluation result, and uploads the evaluation result to the server, which includes:
the CPU calculation unit of the data processing unit calculates the wire amplitude, the dynamic bending strain, the wind speed and the vibration frequency according to the data acquired by the wind speed sensor (4) and the acceleration sensor (8);
and the communication unit of the data processing unit transmits the wire amplitude, the dynamic bending strain, the wind speed and the vibration frequency calculated by the CPU calculation unit to the server in a wireless communication mode.
Preferably, the data are collected by a wind speed sensor 4 fixed outside the housing and a data collection device located inside the housing, comprising:
the wind speed of the surface of the wire is collected and measured by a wind speed sensor 4 fixed outside the shell, the vibration acceleration of the wire is measured by an acceleration sensor of the data collecting device, the temperature of the surface of the wire is collected by a temperature sensor 11, and the collected data is transmitted to the data processing unit.
The wind speed sensor 4 fixed outside the shell and the data acquisition device positioned inside the shell acquire data, and the wind speed sensor further comprises: and storing the acquired data and sending the data to a background server.
The utility model provides a multi-parameter monitoring method for a large-span line, which specifically comprises the following steps:
s1, installing the device on an extra-high voltage or large-span wire;
s2, measuring the wind speed of the surface of the lead by adopting the built-in impeller wind speed sensor, measuring the vibration acceleration of the lead by adopting the built-in MEMS acceleration sensor, collecting the vibration acceleration by the collecting unit, and storing the vibration acceleration into the storage unit;
s3, calculating wind speed, amplitude frequency and dynamic bending strain of the lead by adopting an algorithm embedded in a CPU calculation module arranged in the device, and storing a calculation result into a storage unit;
s4, the communication module built in the device of the utility model is adopted to send the original measurement data and the calculation result to the background server regularly.
The utility model provides a multi-parameter monitoring device and a multi-parameter monitoring method for a large-span line, which make up the current situation that wind speed and vibration devices are measured on wires at the same time at present, and compared with the traditional breeze vibration monitoring device, the multi-parameter monitoring device is more intelligent and has low power consumption, can meet the requirement of long-term continuous measurement, and can simultaneously realize synchronous measurement of wind speed, temperature and vibration response of the wires.
The utility model provides a multi-parameter measuring device and a multi-parameter measuring method for a large-span line, which can realize automatic measurement, collection, storage, calculation and transmission from a wire breeze vibration wind field to a vibration response by installing the device on a wire.
Example 3:
as shown in fig. 1-5, the device comprises an upper device shell 1, a lower device shell 2, a solar cell panel 3, an impeller wind speed sensor 4, a microstrip antenna 5, a movable clamping ring 6, a fixed clamping ring 7, an accelerometer 8, a main control circuit board 9, a battery module 10 and a temperature sensor 11, which are connected through hinges.
The shell consists of an upper shell 1 and a lower shell 2 of the device, wherein the shell is made of anodic aluminum oxide, the upper shell and the lower shell are connected through a hinge, and the outer surface of the upper shell and the lower shell is subjected to chamfering and smoothing treatment to reduce corona.
A solar panel 3, an impeller wind speed sensor 4 and a microstrip antenna 5 are arranged on the top of the upper shell 1 of the device.
The device is characterized in that a fixed clamping ring 7 and a movable clamping ring 6 are arranged in the lower shell 2 of the device, the movable clamping ring is of an arch structure which is separated up and down, hollow grooves are formed in the lower parts of the two clamping rings, 1 acceleration sensor 8 is respectively arranged in each groove, and the distance between the two acceleration sensors is 80-90 mm.
The device lower shell 2 is internally provided with a main control circuit board 9 and a battery module 10, wherein the main control circuit board 9 is provided with a data acquisition and storage unit, a CPU (Central processing Unit) calculation unit and a communication unit, and is used for acquiring, storing, operating and communicating data of wind speed, temperature and acceleration sensors.
The device is connected with a wire through two movable clamping rings 6 and a fixed clamping ring 7, and conductive rubber 13 protective layers are arranged at the contact parts between the inner parts of the movable clamping rings 6 and the fixed clamping rings 7 and the wire.
The lower half part of the fixed snap ring 7 is integrally designed with the lower device shell 2, the movable snap ring 6 is fixed on the lower device shell 2 through bolts by utilizing bottom holes during installation, the distance between the two acceleration sensors 8 during installation of the device is ensured to be fixed (can be set to any value of 80-90 mm), after the installation is completed, the bolts are withdrawn, the limit of the movable snap ring is released, and the movable snap ring 6 can vibrate freely in a hollow groove formed by the upper device shell 1 and the lower device shell 2.
The movable clamp ring 6 is connected with the main control circuit board 9 only through a flexible signal wire after the bolts are released, and the whole device is fixed with the lead only through the fixed clamp ring 7, so that the influence of the measuring device on the vibration characteristics of the lead to be measured is reduced.
The main control circuit board 9 and the battery module 10 are externally wrapped with electromagnetic shielding shells made of electromagnetic shielding materials.
The bottom of the lower shell 2 of the device is provided with a drain hole.
The temperature sensor 11 is contacted with the wire through the spring 12, the spring 12 can give a certain pretightening force to the temperature sensor 11 during installation, good contact between the temperature sensor 11 and the wire is ensured, and the temperature sensor 11 can adapt to different wire diameters.
The temperature sensor 11 is preferably a platinum resistance temperature sensor.
The microstrip antenna 5 is encapsulated by a non-shielding waterproof material and is arranged in a groove of the upper shell 1 of the device.
The acceleration sensor 8 is mainly used for measuring the vibration response of a wire, and is preferably a 3-axis accelerometer and 3-axis gyroscope combined 6-axis MEMS accelerometer.
The communication unit on the main control circuit board 9 preferably adopts a 4G communication mode.
The CPU calculation module is embedded with an algorithm for obtaining the amplitude of the wire according to acceleration data integration, calculating the dynamic bending strain and calculating the wind speed and vibration frequency based on the wind speed of the surface of the wire.
The impeller wind speed sensor and the acceleration sensor are arranged in one device, so that the synchronous monitoring of wind speed and breeze vibration can be realized;
the impeller wind speed sensor, the acceleration sensor and the temperature sensor are arranged in the device, so that the synchronous monitoring of wind speed, temperature and vibration response of the surface of the lead is realized, and breeze vibration can be accurately monitored according to monitoring data.
The foregoing is illustrative of the present utility model and is not to be construed as limiting thereof, but rather as providing for the use of additional embodiments and advantages of all such modifications, equivalents, improvements and similar to the present utility model are intended to be included within the scope of the present utility model as defined by the appended claims.
Claims (7)
1. A large span line multiparameter monitoring device comprising: the wind speed sensor comprises a shell, a wind speed sensor (4) fixed outside the shell, a data acquisition device and a data processing module, wherein the data acquisition device and the data processing module are positioned inside the shell;
the data processing module is respectively connected with the wind speed sensor (4) and the data acquisition device, and is used for calculating the data acquired by the wind speed sensor (4) and the data acquisition device to obtain a breeze vibration evaluation result, and uploading the evaluation result to the server;
the shell comprises an upper device shell (1) and a lower device shell (2) which are connected with one side in a hinged manner;
the wind speed sensor (4) is fixed on the upper shell (1) of the device;
a fixed clamping ring (7) and a movable clamping ring (6) are arranged on the lower shell (2) of the device;
the distance between the fixed clamping ring (7) and the movable clamping ring (6) is 80-90 mm;
the fixed clamping ring (7) and the lower shell (2) of the device are integrally designed;
the lower shell (2) of the device is provided with a hole;
the bolts penetrate through holes formed in the lower device shell (2) to fix the movable clamping ring (6) on the lower device shell (2);
the data acquisition device comprises: a temperature sensor (11) and an acceleration sensor (8);
the lower parts of a fixed clamping ring (7) and a movable clamping ring (6) of the lower shell (2) of the device are provided with hollow grooves;
the acceleration sensor (8) is arranged in the hollowed-out groove;
the temperature sensor (11) is contacted with the lead through a spring;
the data processing module adopts a main control circuit board.
2. The large cross-line multi-parameter monitoring device of claim 1, wherein the data processing module comprises: the CPU computing unit and the communication unit are connected with each other;
the CPU calculation unit is used for calculating wire amplitude, dynamic bending strain, wind speed and vibration frequency according to data acquired by the wind speed sensor (4) and the acceleration sensor (8);
the communication unit is used for transmitting the wire amplitude, the dynamic bending strain, the wind speed and the vibration frequency to the server in a wireless communication mode.
3. The large cross-line multi-parameter monitoring device of claim 2, wherein the data processing module further comprises a data acquisition storage unit for data storage.
4. The large-span line multiparameter monitoring device of claim 2, wherein the communication unit employs a microstrip antenna.
5. The large span line multiparameter monitoring device according to claim 1, characterized in that the movable clasp (6) comprises an arch-shaped structure separated up and down;
holes connected through shaft pins are symmetrically arranged at one end of the arch-shaped structures which are separated up and down, and the other end of the arch-shaped structures are connected through hinges.
6. The large span line multiparameter monitoring device according to claim 1, characterized in that the fixed clasp (7) comprises an upper half and a lower half hinged at one end;
a hole is formed in the other end of the upper half part; the lower shell of the device is provided with a hole corresponding to the hole of the upper half part;
the shaft pin passes through the hole of the upper half part and the corresponding hole on the lower shell to fix the upper half part and the lower shell of the device;
the lower half is designed integrally with the device lower housing (2).
7. The multi-parameter monitoring device for the large-span line according to claim 1, wherein a conductive rubber protection layer (13) is arranged on the inner side of the fixed clamping ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120253557.1U CN218937445U (en) | 2021-01-29 | 2021-01-29 | Multi-parameter monitoring device for large-span line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120253557.1U CN218937445U (en) | 2021-01-29 | 2021-01-29 | Multi-parameter monitoring device for large-span line |
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| Publication Number | Publication Date |
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| CN218937445U true CN218937445U (en) | 2023-04-28 |
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| CN202120253557.1U Active CN218937445U (en) | 2021-01-29 | 2021-01-29 | Multi-parameter monitoring device for large-span line |
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2021
- 2021-01-29 CN CN202120253557.1U patent/CN218937445U/en active Active
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