/ AsG/July 26, 2022 Guangzhou -- On July 21-22, 2022, the 11th China Power Equipment Condition Detection and Fault Diagnosis Technology Summit Forum and the 7th National Power Equipment Live Detection Technology Summit Forum was held in Changzhou.
Mr. Xiang Bin, CEO of Xi 'an Lianfengxunsheng, was invited to participate in the summit, together with the State Grid Company, China Southern Power Grid Company, Electric Power Academy, Grid Province Electric Power Company, Design Institute and other power industry leaders, Carry out in-depth exchanges on power equipment condition detection and fault diagnosis technology, live detection technology, intelligent high-voltage equipment, intelligent operation and maintenance, and explore the path of industry innovation and upgrading.Focusing on the theme of "Smarter equipment, more efficient operation and inspection, and more reliable power grid", Mr. Xiang Bin made a special report on the Application of machine Hearing Technology in the field of Equipment Condition Monitoring in the Power Industry based on his profound expertise in acoustics.
In the report, he introduced the principle and application basis of machine hearing technology for environmental sound perception in a simple way, and shared the recent breakthrough made by Lianfengxun sound team in the application of sound event detection/recognition, sound source localization, sound field imaging technology in the health status monitoring of power system equipment. As for the technical difficulties recognized by the industry, he proposed such feasible new ideas and development directions as "equipment fault occurrence mechanism + data dual drive to realize fault diagnosis based on voice print features, multi-dimensional improvement of noise reduction and anti-noise means, and independent realization of observation, hearing, inquiry and cutting by machines".
Conference at the same time, Xi 'an Lianfeng Xunsheng carried out the "handheld sound and light integrated detector" new product release.
The first domestic design and development of single-hand handheld comprehensive sound and light detection equipment into the public eye for the first time, "brilliant" amazed all the people.
This instrument, weighing only 890g, can not only carry out non-contact high-precision detection and positioning of the ultrasonic wave generated by partial discharge in the running state of electric power equipment, but also innovatively integrate infrared imaging and contact ultrasonic monitoring on this basis. It truly realizes the technical innovation of multi-sensor collaboration, multi-purpose of one machine and multi-dimensional co-detection of equipment faults.
Handheld audio-visual integrated detector, directly hit the industry pain points, effectively solve the traditional inspection method time-consuming and laborious, low efficiency, high requirements on the actual experience of operation and maintenance personnel, reliability is not guaranteed, data information is not inaccurate, can not timely and accurate report and other problems.
Based on the technical advantages of Lienfeng Xunsheng in microphone array and acoustic signal processing, the sound source location based on beamforming theory and the international leading ESR environmental sound target recognition technology are adopted to measure the sound location and sound radiation state of transmission, transformer and distribution equipment. Support 1KHz-48KHz ultra-wide band range, from audible sound to ultrasonic full coverage, effective measurement of sound field distribution and sound field cloud image and visible image superposition, sound field visualization.The infrared thermal imaging module detects infrared heat through non-contact, accurately quantifies the detected heat, and identifies the fault area by observing the thermal image.
Lianfeng Xun sound handheld sound and light integrated detector for steady or high transient sound sources, static or moving objects can obtain excellent detection results. For the daily inspection of the office release fault, it can realize the functions of remote, non-stopping, accurate fixed point, and visualization. Even if the power switch cabinet does not open the cabinet door, it can still clearly and accurately determine the position of the office in the switch cabinet.
It is widely applicable to all units of power transformation, power transmission and distribution. It has important practical significance for improving the efficiency and reliability of equipment operation and maintenance, collecting equipment data and prolonging the service life of equipment.
A new era often dawns with little fanfare but loud reminders.
< /p>Joint Fengxun sound, focus on the new trend of the industry, explore the path of science innovation, perfect technology to break the ice!
