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418results about How to "Control consumption" patented technology

Secure wireless leak detection system

Supervised wireless leak detection system, having a leak detection sensor unit, capable of transmitting a uniquely coded signal in response to a detected leak, a supervised wireless valve control transceiver unit having a receiver, capable of receiving said uniquely coded signal, and a transmitter for feeding the uniquely coded signal within the system, a valve shut-off mechanism in communication with said valve control transceiver unit said valve shut-off mechanism having a motor attached to a valve, said motor creating a rotation pulse used to close and open said valve, and a processor having an electronic circuitry containing sensor(s), detecting said motor rotation pulse count during a motorized valve closure or open process. Said processor functions in a setup process to memorize (learn) said motor rotation pulse count, required, to close and or to open the valve. Wherein said processor upon receipt of said uniquely coded signal in response to a detected leak, applies power to the motor to close the valve, the motor controlled to stop turning the valve in response to a processor received motor rotation pulse count number, substantially equal to a previously stored number needed to close or open said valve. A digital, voice, or SMS text message phone dialer is add to dispatch the detected leak signals, and notify monitoring personnel supervised system operation, end provide user access to turn on or off a valve(s) from a remote location(s).
Owner:RUGGIERI MONICA L +1

A preparation method of high-performance sintered NdFeB with low dysprosium content

The invention discloses a method for preparing sintered NdFeB with low dysprosium (Dy) content and high performance; the method comprises the following steps of: sputtering and plating the Dy element on the surface of jet mill powder by using the powder plate technology based on magnetron sputtering on the basis of preparing NdFeB powder, and then sufficiently dispersing the Dy element to micron-sized NdFeB crystal particles by dispersing the Dy element at high temperature in the sintering and tempering process, thereby achieving the effect of improving magnetic performance of the sintered NdFeB. Compared with the introduction of the Dy element in the proportioning process of the prior art, the method disclosed by the invention has the advantages: the low dysprosium content and high performance is limited in the nano-size by adopting the physical gas-phase deposition, the consumption quantity of the Dy element during the production process is controlled effectively and the preparationof sintered NdFeB with low dysprosium content and high performance is realized. Compared with the sintered NdFeB of the same components prepared by the traditional casting and powder metallurgy process, both the intrinsic coercivity and the maximum magnetic energy product of the sintered NdFeB rare-earth permanent magnetic material obtained according to the invention are improved obviously; compared with the sintered NdFeB with the same performance prepared by the traditional casting and powder metallurgy process, the dosage of the dysprosium element is reduced remarkably. The method can be widely applicable to producing and manufacturing sintered NdFeB with high performance.
Owner:NANJING UNIV OF SCI & TECH +1

Block chain system consensus method and device based on improved clustering algorithm

The invention discloses a block chain system consensus method and device based on an improved clustering algorithm. The invention relates to the field of block chains. The method comprises the following steps: enabling the first clustering center node to receive a plurality of requests, packaging the plurality of requests into blocks; broadcasting to the subconsensus cluster to which the subconsensus cluster belongs for consensus; if the block passes the consensus, enabling the block to pass the consensus, broadcasting the blocks to a backbone consensus cluster for consensus; if the consensusof the backbone consensus cluster is passed, enabling each clustering center node to digitally sign and broadcast the block; packaging the received digital signature set and the block into a submission message, broadcasting the submission message to a sub-consensus cluster to which the submission message belongs, receiving the submission message by each non-clustering center node, verifying the digital signature set, and if the transaction content of the block is verified and executed, storing the block in a chain. According to the block chain system consensus based on the improved clusteringalgorithm, the communication frequency and the data transmission amount required by single consensus are reduced, and the working efficiency of the whole block chain system is greatly improved.
Owner:SICHUAN UNIV

Secure wireless leak detection system

A method utilizing a wireless leak detection and prevention system, used for preventing property damage and personal injury caused by liquid or gas leak. The system comprised of a wireless, battery operated apparatus having sensor(s) incorporated with an RF transmitter, used for detecting liquid or gas leaks, and transmits signal(s) to a wireless valve shutoff control unit. The valve shutoff control unit containing an RF transceiver and a processor designed to receive the detected signals and activate a supervised solenoid or motorized valve shut-off mechanism to stop the detected leak. In a preferred embodiment of the invention, the wireless valve control unit is connected to a motor, which is mounted on manual shutoff valve. Wherein the valve control unit activates the motor to produce torque to turn the valve towards a close position in response to a received detected leak signal from a sensor. An electronic or electromechanical circuitry is provided, to detect motor or gear turn cycles. The motor rotation is being controlled by the valve control unit processor, which stops motor rotation in response to a detected preset number of motor turn cycles. A digital, voice, SMS text message phone dialer is add to dispatch the detected leak signals, and notify monitoring personnel of the supervised system operation status. And provide user access to turn on or off a valve(s) from a remote location.
Owner:RUGGIERI MONICA L +1
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