Shanghai Roye Electric Co., Ltd.

Alcatel Lucent

Chinese Academy of Sciences

Mettler-toledo Gmbh

State Grid Shanghai Municipal Electric Power Company

Bing He

Haiyong Jin

Min Chang

Zhengcao Guo

Tiexin Xia

Haiming Liao

Enlin Wang

Wei Zhang

Jun Zhou

Ming Zhang

Hong Iris Zhu

Chao Sun

Jun Zhu

Xuejun Zhang

Changlin Wang

Haibo Zhang

Zhijun Yuan

Yu Lei

Weijun Chen

Fanfeng Zu

Yuhao Li

Xiping Sheng

Yunwei Lu

Juergen Stoetzer-Bradler

Carsten Waitzmann

Libo Luo

Quanxiu Liu

Xiaoli Shen

Yiming Fan

Menghao Wu

Yunfeng Qi

Ren Ye

Xing Miao

Lingjing Hu

Jiaying Mao

Hong Zhu

Provided are an adaptive control electromagnetic induction energy harvesting method and system for a power transmission line. The method includes acquiring a first electromagnetic induction electromotive force based on an electromagnetic induction energy harvesting device secured to the power transmission line; when the first electromagnetic induction electromotive force is less than an operating electromagnetic induction electromotive force, controlling the electromagnetic induction energy harvesting device to adaptively control a magnetic core unit to perform extension or retraction in a coil unit based on the first electromagnetic induction electromotive force to obtain a second electromagnetic induction electromotive force; performing filtering and rectification processing and voltage conversion processing on at least one of the first electromagnetic induction electromotive force or the second electromagnetic induction electromotive force to obtain an electromagnetic induction output voltage; and performing powering processing or charging processing on an electrical device based on the electromagnetic induction output voltage.

Adaptive control electromagnetic induction energy harvesting method and system for a power transmission line

The application provides a modification of gas density relay, a gas density relay with online self-check function and its check method for high-voltage and medium-voltage electrical equipment. The gas density relay includes a gas density relay body, a gas density sensor, a pressure regulating mechanism, a valve, an online check contact signal sampling unit and an intelligent control unit. The pressure is increased or decreased by the pressure regulating mechanism to enable the contact action of the gas density relay body. The contact action is transmitted to the intelligent control unit through the online check contact signal sampling unit. The intelligent control unit detects the alarm and/or blocking contact signal operating value and/or return value of the gas density relay body according to the density value of the contact action; the check of the gas density relay can be completed without maintenance personnel on site. It has remote reading function to realize free maintenance and significantly improve the reliability of the power grid and the work efficiency, as well as reduces the O&M cost.

Transformation method for gas density relay, and gas density relay having online self-check function and check method thereof

A device for realizing the splicing of an array fiber and a large-size quartz end cap comprises a carbon dioxide laser, a light splitter, a light beam shaper, a high reflectivity mirror, an image detection module, an array fiber and a carrier thereof, a large-size quartz end cap and a carrier thereof, a stepping motor, a thermodetector, and a computer; a laser beam emitted by the carbon dioxide laser is divided into two light beams through a light splitter, after the two light beams respectively pass through the beam shaper and the high reflectivity mirror, two strip-shaped light spots with uniform power density are integrally formed to heat a splicing face of the large-size quartz end cap, a uniform temperature field of a target splicing area is achieved through indirect heating and heat conduction.

Device and method for splicing array optical fiber with large-size quartz end cap

The application provides an electrical system with online sampling and check function and its check method for high-voltage and medium-voltage electrical equipment, including electrical equipment, gas density relay, gas density sensor, valve, pressure regulating mechanism, online check contact signal sampling unit and intelligent control unit. The pressure is increased or decreased by the pressure regulating mechanism to enable the contact action of the gas density relay of electrical equipment. The contact action is transmitted to the intelligent control unit through the online check contact signal sampling unit. The intelligent control unit detects the alarm and/or blocking contact signal operating value and/or return value according to the density value of the contact action; the check of the gas density relay can be completed without maintenance personnel on site, which greatly improves the reliability of the power grid and the work efficiency, and reduces the O&M cost. At the same time, it also realizes the mutual self-inspection between gas density relay and gas density sensor, and further realizes the maintenance-free.

Electrical system with on-line sampling verification function and verification method thereof

A high anti-vibration gas density monitor is provided, including a monitor enclosure, a signal control mechanism, and an indication value display mechanism independent from the signal control mechanism which are provided in the monitor enclosure. The signal control mechanism includes at least one corrugated pipe, a sealed compensation chamber, a signal generator, and a signal regulation mechanism. The corrugated pipe is perpendicular to a side wall of a control casing. The monitor enclosure includes an independent sealed compartment used to mount the indication value display mechanism. The sealed compartment is filled with anti-vibration oil, or is hermetically filled with gas. The indication value display mechanism includes a Bourdon tube, a base, an end holder, a movement, a pointer, and a dial.

High anti-vibration gas density monitor

An apparatus and method for measuring the horizontal position uses a gas bubble in a bubble level. The gas bubble is in a cylindrical sealed housing that is partially filled with liquid. At least two light-emitting devices are used to illuminate the gas bubble and an inner bottom surface of the bubble level. A corresponding number of receiving devices are used to receive the light that is either reflected by the inner bottom surface or is reflected and refracted by the gas bubble. The amount of light received is translated into an electrical signal and is sent to a processing unit to calculate the position of the gas bubble. The light-emitting devices and the receiving devices are disposed in an alternating manner at the periphery of the cylindrical sealed housing.

Bubble level and apparatus containing a bubble level

A translation device includes a receiver, a processor and a transmitter. The receiver is configured to receive packets from a first party designated for a second party, the received packets including parameters associated with the first party. The processor is configured to translate the parameters of the received packets to form translated packets such that the parameters of the translated packets are associated with the device. The transmitter is configured to transmit the translated packets to the second party.

Real-time transport protocol (RTP) source translator

Growing community of inventors

Shanghai, China

Bing He