CN-122001086-A - Intelligent pulley for line engineering overhead line construction and monitoring method

CN122001086ACN 122001086 ACN122001086 ACN 122001086ACN-122001086-A

Abstract

The invention discloses an intelligent pulley for line engineering overhead line construction and a monitoring method, which relate to the technical field of line engineering overhead line construction and comprise an intelligent pulley device which is arranged on an erected wire, and a remote monitoring terminal which is in wireless communication connection with the intelligent pulley device, wherein the intelligent pulley device is used for collecting wire length change data and self data of the wire in real time and calculating a real-time sag value of the wire based on a preset mechanical model to wirelessly transmit the real-time sag value to the remote monitoring terminal.

Inventors

XU WEI
KANG XIAO
TONG JIE
XUE DAOJUN
ZHU LI

Assignees

徐威

Dates

Publication Date: 20260508
Application Date: 20260121

Claims (9)

1. The intelligent pulley for line engineering overhead line construction is characterized by comprising the following components: The intelligent pulley device is arranged on the erected wire; The remote monitoring terminal is in wireless communication connection with the intelligent pulley device; The intelligent pulley device is used for collecting line length change data and self data of the wire in real time, calculating a real-time sag value of the wire based on a preset mechanical model, and wirelessly transmitting the real-time sag value to the remote monitoring terminal; The remote monitoring terminal is used for receiving and displaying the real-time sag value and sending an alarm signal when the real-time sag value exceeds a preset safety threshold.
2. The intelligent pulley for line engineering stringing construction according to claim 1, wherein the intelligent pulley device comprises: a carriage body; the travelling wheel is rotatably arranged on the trolley frame body and used for rolling and advancing on the lead; the rotary shaft of the metering encoder is coupled with the rotary shaft of the travelling wheel and is used for converting rotary displacement of the travelling wheel into an electric pulse signal so as to meter the length of a wire passing through the pulley; The inclination angle sensor is fixedly arranged on the trolley frame body and is used for measuring the real-time inclination angle of the trolley frame body relative to the horizontal plane; the main control module is respectively and electrically connected with the metering encoder and the inclination sensor, and is used for receiving the electric pulse signals and the inclination data and calculating a real-time sag value according to the input environmental parameters; the wireless communication module is connected with the main control module and used for sending the real-time sag value to the remote monitoring terminal; And the power supply module is used for supplying power to the metering encoder, the inclination angle sensor, the main control module and the wireless communication module.
3. The intelligent pulley for line engineering stringing construction according to claim 2, wherein the intelligent pulley device further comprises an elastic pressing mechanism, and the elastic pressing mechanism comprises: The mounting bracket is fixedly arranged on the trolley frame body; The compression wheel is rotatably installed on the installation bracket through a rotating shaft; and the elastic piece is arranged between the rotating shafts of the pressing wheels of the mounting bracket and is used for applying elastic force to the pressing wheels.
4. The intelligent pulley for line engineering overhead line construction of claim 2, wherein the main control module comprises an embedded microprocessor and a memory unit, wherein the memory unit stores a sag calculation program, and the sag calculation program is configured to execute the following steps: Receiving line length increment data from a metering encoder and inclination angle data from an inclination angle sensor; Receiving calculation parameters input by a user through a remote monitoring terminal, wherein the calculation parameters at least comprise horizontal span of a crossing gear, height difference between hanging points and weight of a lead in unit length; based on the line length increment data, the dip angle data and the calculation parameters, utilizing a catenary equation or a parabolic equation to iteratively solve or directly calculate the tension and the real-time sag value of the wire in the gear; And sending the calculated real-time sag value to a wireless communication module.
5. The intelligent pulley for line engineering overhead line construction of claim 2, wherein the main control module is further configured to perform the steps of: Simultaneously running a fast calculation model based on a parabolic equation and an accurate verification model based on a catenary equation; When the altitude difference angle is smaller than or equal to a preset angle threshold value, adopting a sag value output by the rapid calculation model as the real-time sag value; And when the altitude difference angle is larger than the preset angle threshold, starting the accurate verification model to compensate and correct the quick calculation result, and taking the corrected result as the real-time sag value.
6. The intelligent pulley for line engineering overhead line construction of claim 2, wherein the main control module further comprises an environment monitoring module, the environment monitoring module is integrated on the pulley frame body or connected with the main control module through a cable, and the environment monitoring module comprises at least one of the following sensors: the wind speed and direction sensor is used for monitoring the wind speed at the pulley; A temperature sensor for monitoring an ambient temperature; the humidity sensor is used for monitoring the ambient humidity; the main control module is also configured to send the environment monitoring data and the real-time sag value to a remote monitoring terminal or dynamically compensate the sag calculation model based on the environment monitoring data.
7. The intelligent pulley for line engineering stringing construction according to claim 2, wherein the wireless communication module is a LoRa long-distance wireless communication chip or module, and the power supply module comprises a rechargeable lithium battery pack and a solar charging plate, wherein the solar charging plate is arranged outside the pulley frame body and charges the lithium battery pack.
8. The intelligent pulley for line engineering overhead line construction of claim 1, wherein the remote monitoring terminal is provided with monitoring software, the monitoring software provides a graphical user interface, and the interface comprises: the main display area dynamically displays the real-time sag values in the form of numbers and real-time curves; The parameter setting area is used for inputting and modifying the calculated parameters and the safety alarm threshold value; The data recording area is used for storing and replaying the historical sag data and alarm events; And the equipment state area is used for displaying the battery electric quantity, the communication signal strength and the sensor state of the intelligent pulley device.
9. A method for monitoring an intelligent pulley for line engineering overhead line construction, which is characterized by comprising the following steps of: step one, installing the intelligent pulley device on a wire in a wire crossing gear needing sag monitoring; Inputting the calculated parameters and the safety alarm threshold value through a remote monitoring terminal; Starting the intelligent pulley device to move along with the wire in the wire-erecting traction process, and starting to acquire wire length data and attitude data in real time; Step four, the main control module of the intelligent pulley device calculates the sag value of the wire in real time according to the acquired data and the input calculation parameters; Step five, the intelligent pulley device sends the calculated real-time sag value to a remote monitoring terminal through a wireless communication module; And step six, the remote monitoring terminal receives and displays the real-time sag value, continuously judges whether the sag value exceeds a safety alarm threshold, and immediately triggers an audible and visual alarm if the sag value exceeds the safety alarm threshold.

Description

Intelligent pulley for line engineering overhead line construction and monitoring method Technical Field The invention relates to the technical field of line engineering overhead line construction, in particular to an intelligent pulley for line engineering overhead line construction and a monitoring method. Background Along with the rapid development of power grid construction, line engineering increasingly spans railway, expressway, important transmission channels and other 'special spanning' working conditions, in the construction, sag of a wire is a core control parameter, and the sag is too large, so that the safety distance is insufficient, and serious power grid safety accidents and social influence are caused. At present, the traditional sag control method mainly depends on manual operation and experience judgment, and intelligent equipment capable of being deeply fused with an overhead line pulley and realizing whole-course autonomous monitoring does not exist yet. The prior art mainly has the following limitations: The precision depends on manpower, the traditional method mainly depends on theodolite observation and naked eye judgment of constructors, the measurement result is obviously influenced by the observation experience and the field sight condition, and the method is difficult to adapt to special crossing construction with high precision and high safety requirements. The monitoring lacks continuity, namely the traditional mode can only carry out intermittent spot check, and continuous and dynamic sag monitoring can not be realized for the whole wire-erecting process, so that the safety risk can not be found and early warned in real time. The environment adaptability is insufficient, manual observation is difficult to develop under the conditions of rain, snow, fog, night or complex terrains, the construction safety and efficiency are seriously affected, and the requirements of all-weather and all-terrain modern construction cannot be met. Disclosure of Invention The invention aims to provide an intelligent pulley for line engineering overhead construction and a monitoring method thereof, which are used for solving the problem that the intelligent, real-time and accurate control cannot be realized aiming at wire sag in the prior art. In order to achieve the purpose, the invention provides the following technical scheme that the intelligent pulley for line engineering overhead line construction comprises: The intelligent pulley device is arranged on the erected wire; The remote monitoring terminal is in wireless communication connection with the intelligent pulley device; The intelligent pulley device is used for collecting line length change data and self data of the wire in real time, calculating a real-time sag value of the wire based on a preset mechanical model, and wirelessly transmitting the real-time sag value to the remote monitoring terminal; The remote monitoring terminal is used for receiving and displaying the real-time sag value and sending an alarm signal when the real-time sag value exceeds a preset safety threshold. Further, the intelligent pulley device includes: a carriage body; the travelling wheel is rotatably arranged on the trolley frame body and used for rolling and advancing on the lead; the rotary shaft of the metering encoder is coupled with the rotary shaft of the travelling wheel and is used for converting rotary displacement of the travelling wheel into an electric pulse signal so as to meter the length of a wire passing through the pulley; The inclination angle sensor is fixedly arranged on the trolley frame body and is used for measuring the real-time inclination angle of the trolley frame body relative to the horizontal plane; the main control module is respectively and electrically connected with the metering encoder and the inclination sensor, and is used for receiving the electric pulse signals and the inclination data and calculating a real-time sag value according to the input environmental parameters; the wireless communication module is connected with the main control module and used for sending the real-time sag value to the remote monitoring terminal; And the power supply module is used for supplying power to the metering encoder, the inclination angle sensor, the main control module and the wireless communication module. Further, the intelligent pulley device also comprises an elastic pressing mechanism, and the elastic pressing mechanism comprises: The mounting bracket is fixedly arranged on the trolley frame body; The compression wheel is rotatably installed on the installation bracket through a rotating shaft; and the elastic piece is arranged between the rotating shafts of the pressing wheels of the mounting bracket and is used for applying elastic force to the pressing wheels. Further, the main control module comprises an embedded microprocessor and a storage unit, wherein the storage unit stores a sag calculation program, and the sag calculati