Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

82results about How to "Reduce energy transfer" patented technology

Low-energy consumption sleeping monitoring method synchronous relative to time of wireless sensor network

The invention relates to a low-energy consumption sleeping monitoring method synchronous relative to time of a wireless sensor network. The traditional method is high in energy consumption. The method in the invention comprises the following steps: in the stage of creating a relative synchronization table at a new node, broadcasting addition request network packets by the new node firstly to obtain synchronizing information of a neighbourhood node; then estimating clock skew, and linearly fitting multigroup of synchronization information of the neighbourhood node to estimate clock drift; and finally saving the sleeping period of the neighbourhood node, the estimated clock skew and the clock drift into the relative synchronization table; and in the stage of prediction and transmission of data packets of the node, realizing relative synchronization with a target node by the node according to the created relative synchronization table, then predicting the waking time at the next time according to the sleeping period of the node, setting a transmission timer, and finally transmitting data packets by a short permeable when the transmission timer is triggered. According to the invention, the energy overhead for sending the data packets by the node can be saved, and the idle time of a transmitting node is reduced, and the sleeping time of the transmitting node is increased.
Owner:HANGZHOU DIANZI UNIV

Method for controlling structural acoustic transmission on basis of combined type vibration isolation device

The invention discloses a method for controlling structural acoustic transmission on the basis of a combined type vibration isolation device. The method includes steps of S1, determining the required combined type vibration isolation device according to parameters of isolated mechanical equipment; S2, vertically placing the isolated mechanical equipment on the combined type vibration isolation device; S3, adjusting the weight of a middle counterweight of the combined type vibration isolation device; S4, adjusting the natural frequency of the combined type vibration isolation device so that the natural frequency of the combined type vibration isolation device is lower than the structural vibration acoustic transmission frequency generated during operation of the isolated mechanical equipment; and S5, fixing the isolated mechanical equipment. The method has the advantages that propagation of noise of high-frequency structure is controlled by a combined type vibration isolation system, the vibration isolation device is arranged between the isolated mechanical equipment and a carrying foundation, performance parameters of upper and lower vibration isolators, a damper and the middle counterweight are matched with one another, the middle counterweight absorbs energy, and the spring and rubber isolators effectively isolate vibration, so that energy transmission of the structural noise is reduced, and the structural acoustic transmission of mechanical vibrating equipment is efficiently isolated.
Owner:STATE GRID CORP OF CHINA +2

Contacting point damping method between flex circuit and pivot housing

The present invention for a disk drive is a damping feature applied to the contact area between the flexible circuit and the pivot housing, reducing the resonance energy transferred from the flexible circuit to the pivot housing. This invention reduces the direct energy transfer from the flexible circuit to the pivot house by applying a damping feature as embodied by damping material on the flexible circuit or pivot housing at the point at which they make contact or by adding a damper to the flexible circuit re-routing tip area between the pivot housing and the flexible circuit. The damping feature absorbs the resonance energy from the flexible circuit to the damping feature material and reduces the energy transferred from the flexible circuit to the pivot housing.
Owner:SEAGATE TECH LLC

Video SoftCast method based on residual distributed compressed sensing

The invention discloses a video SoftCast method based on residual distributed compressed sensing, and belongs to the technical fields of video encoding-decoding and wireless transmission. The method comprises the steps of encoding at a transmitting end, channel transmission and decoding at a receiving end. At the transmitting end, a video sequence is read and blocked, and video blocks are observed in order to obtain observed values of frames; in an image group, the observed values of reference frames are subtracted from the observed values of non-reference frames respectively in order to obtain residual observed values; the residual observed values and the observed values of the reference frames are averagely allocated to a plurality of data packets; and meanwhile, energy allocation is performed on the observed value in the packets, so that energy distortions are minimized. During the channel transmission, the data packets are subjected to simple constellation mapping, and input into an orthogonal frequency division multiplexing (OFDM) channel to be transmitted to a decoding end. At the decoding end, users obtain different quantities of observed values according to acceptance capabilities of the users. An initial solution is obtained according to the observed values and an observation matrix; Wiener filtering is performed; multi-direction motion estimation and motion compensation are performed with correlation among videos; an SPL algorithm is used for updating; and repeated iteration is performed till the end of decoding. The different users recover different video qualities by decoding according to actually-accepted data packets.
Owner:TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Lever mechanisms for Anti-phase mode isolation in MEMS tuning-fork structures

A MEMS resonator includes two resonating masses having an anti-phase and in-phase resonance mode, each mode having a resonance frequency, and an anti-phase resonance levering system coupled to the two resonating masses to stiffen and / or dampen the in-phase resonance mode while leaving the anti-phase resonance mode compliant. This effectively raises the in-phase resonance frequency above the anti-phase resonance frequency, and potentially creates a large frequency separation between the two resonance modes. This reduces the energy transfer between the two modes, allowing for robustness to external acceleration, because the in-phase mode is of a higher frequency. The anti-phase resonance levering system is disposed between the two resonating masses as an internal levering mechanism, or is disposed around the two resonating masses as an external levering mechanism.
Owner:RGT UNIV OF CALIFORNIA

Isolation rings for use with musical instruments and equipment

A resilient isolation ring member is provided for reducing a transfer of energy from a percussion instrument to a support surface supporting a percussion instrument. The isolation ring member comprises a donut-shaped main body having a top surface and a bottom surface; and a central aperture provided in the donut-shaped main body, wherein the central aperture provided in the donut-shaped main body defines an hour-glass opening in the main body. The hour-glass opening is preferably tapered to have a smallest diameter at a central portion of the main body and larger diameters at a top and a bottom of the body. The combination of a support foot for a percussion instrument and a resilient isolation ring member reduces a transfer of energy from the percussion instrument to a support surface supporting the percussion instrument.
Owner:PEARL DRUMS

Pulmonary vein isolation balloon catheter

PendingUS20200008869A1Facilitate transfer of energyMitigates energy transferCatheterSurgical instruments for heatingCardiologyBiomedical engineering
The instant disclosure relates to electrophysiology catheters for tissue ablation within a cardiac muscle. In particular, the instant disclosure relates to an electrophysiology ablation balloon catheter with conductive and non-conductive surfaces for focusing ablation energy at a desired portion of pulmonary vein tissue.
Owner:ST JUDE MEDICAL CARDIOLOGY DIV

High-pressure plunger pump with energy recycling function

The invention discloses a high-pressure plunger pump with an energy recycling function and relates to the technical field of hydraulic energy recycling. The problem that many energy transmission links exist in the energy recycling process is solved. The high-pressure plunger pump with the energy recycling function comprises an outer shell and a cylinder body, wherein the outer shell comprises two end covers and a shell body with a through hole; the cylinder body is arranged in the through hole of the shell body; a swash plate is arranged between the cylinder body and one of the end covers; cylinder holes are formed in the cylinder body in a circumferential array; a plunger and sliding shoe assembly is arranged in each cylinder hole; the outer shell is provided with a fluid inlet and a fluid outlet which communicate with the cylinder holes; a fluid channel is arranged on the cylinder body; a hydraulic cavity is formed between each plunger and sliding shoe assembly and the inner wall of the corresponding cylinder hole and communicates with the fluid channel; the outer shell is provided with a recycling inlet and a recycling outlet which communicate with the fluid channel. The high-pressure plunger pump with the energy recycling function is mainly applied to high-pressure fluid equipment for industrial production to achieve the functions like recycling energy of waste high-concentration sea water in reverse-osmosis seawater.
Owner:WOER TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products