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Controller for Non-Volatile Memories and Methods of Operating the Memory Controller

A non-volatile memory system (3) is proposed consisting of a first non-volatile flash memory (5) having a plurality of blocks, each block having a plurality of pages, each block being erasable and each page being programmable, and a second non-volatile random access memory (23) having a plurality of randomly accessible bytes. The second non-volatile memory (23) stores data for mapping logical blocks to physical blocks and status information of logical blocks. Each logical block has an associated physical page pointer stored in the second non-volatile memory (23) that identifies the next free physical page of the mapped physical block to be written. The page pointer is incremented after every page write to the physical block, allowing all physical pages to be fully utilized for page writes. Furthermore, a method of writing and reading data is disclosed whereby the most recently written physical page associated with a logical address is identifiable by the memory system without programming flags into superseded pages, or recording time stamp values in any physical page or block of the first non-volatile memory (5). Furthermore, a method is provided for a logical block to be mapped to two physical blocks instead of one to provide additional space for page writes, resulting in reduction in page copy operations, thereby increasing the performance of the system.
Owner:CHANG CHEE KENG

Controller for non-volatile memories and methods of operating the memory controller

A non-volatile memory system (3) is proposed consisting of a first non-volatile flash memory (5) having a plurality of blocks, each block having a plurality of pages, each block being erasable and each page being programmable, and a second non-volatile random access memory (23) having a plurality of randomly accessible bytes. The second non-volatile memory (23) stores data for mapping logical blocks to physical blocks and status information of logical blocks. Each logical block has an associated physical page pointer stored in the second non-volatile memory (23) that identifies the next free physical page of the mapped physical block to be written. The page pointer is incremented after every page write to the physical block, allowing all physical pages to be fully utilized for page writes. Furthermore, a method of writing and reading data is disclosed whereby the most recently written physical page associated with a logical address is identifiable by the memory system without programming flags into superseded pages, or recording time stamp values in any physical page or block of the first non-volatile memory (5). Furthermore, a method is provided for a logical block to be mapped to two physical blocks instead of one to provide additional space for page writes, resulting in reduction in page copy operations, thereby increasing the performance of the system.
Owner:CHANG CHEE KENG

Alkali activated solidification and stabilization treatment method of refuse incineration fly ash

The invention relates to an alkali activated solidification and stabilization treatment method of refuse incineration fly ash. The method comprises the following steps of: A: carrying out a pretreatment on the refuse incineration fly ash; B, then adding water and heavy metal stabilizing agents and fully stirring so as to fully integrate soluble heavy metals in the fly ash with the heavy metal stabilizing agents and then realizing a mineralization stability; C, adding alkali activating agents into fly ash slurry after finishing the B step and fully stirring; D, carrying out a heating treatment on a water bath after finishing the C sep, controlling a heating temperature and a heating time, and aperiodically stirring so as to uniformly heat the fly ash slurry materials; and E, finally shaping and maintaining the mixed materials so as to further blockade mineralized heavy metals in the fly ash and simultaneously solidify dioxin in the fly ash, and finally realizing the harmless solidification and stabilization of the fly ash. According to the method provided by the invention, the gelling reaction of the fly ash is generated by using the alkali activating agents to activate the fly ash activity only on a base of regulating the fly ash activity, and the double-effect stabilization of the fly ash is obtained by simultaneously supplementing the heavy metal stabilizing agents; moreover, the method has the advantages of low cost, good effect, low increase-volume rate and no secondary pollution.
Owner:深圳市龙岗区东江工业废物处置有限公司

Industrial robot capturing method based on monocular camera and three-dimensional force sensor

The invention discloses an industrial robot capturing method based on a monocular camera and a three-dimensional force sensor. The method comprises the steps that the monocular camera and the industrial robot are calibrated, and the three-dimensional force sensor is initialized; the monocular camera acquires an object image, an upper computer conducts image processing and calculates the position information of an object, the robot is controlled to move to a position above the object according to the position information, and then the robot moves downwards vertically till making contact with the object to be captured; the three-dimensional force sensor senses the contact force information between the tail end of the robot and the surface of the object, the upper computer controls the industrial robot to stop moving according to contact force information and calculates the pose increment of the tail end of the robot, the posture of the robot is adjusted according to the pose increment till a pneumatic sucker at the tail end of the robot is attached to the plane of the object to be captured, and the pneumatic sucker acts to achieve capturing. By the adoption of the method, objects placed obliquely in a messy mode can be captured, and complexity of camera calibration and object space pose estimation is reduced.
Owner:HUAZHONG UNIV OF SCI & TECH

Method for synthesizing allyl polyether-type high-performance water reducing agent

The invention relates to a synthetic method for an allyl polyether-type high efficiency water reducing agent, belonging to the field of water reducing agent. The synthetic method utilizes allyl polyoxyethylene ether monomer, maleic-anhydride, and a mixture with one or more of (methyl) sodium allylsulfonate, 2-acryl amide-2-methylpropanesulfonic acid, itaconic acid, acrylic acid and acrylamide for obtaining polyether-type high efficiency water reducing agent by initiating one-step polymerization through inorganic peroxides in water solution system, the final structure of the water reducing agent comprises no ester bond, carboxyl, amide, sulfonic group and other functional groups. The synthetic method for an allyl polyether-type high efficiency water reducing agent has the advantages of having applicability for various concrete constructions; having simple and easy process control and non-pollution; resolving the disadvantages of lower polymerization activity of allyl polyether monomer, and resolving the ubiquitous low temperature crystallization problem of allyl polyether-type high performance water reducing agent; and realizing obtaining higher dispersity and preserving degree in low-dosage, particularly, having good dispersion performance on the condition of extremely low water cement ratio.
Owner:ZHEJIANG LAOHUSHAN BUILDING MATERIALS

Intelligent self-propelled sprayer based on image processing

The invention discloses an intelligent self-propelled sprayer based on image processing. The intelligent self-propelled sprayer comprises a frame, a chassis, a power mechanism, a transmission mechanism, two caterpillar band walking mechanisms, a spraying mechanism and a control system. The frame is fixed above the chassis, the power mechanism and the transmission mechanism are installed on the chassis, and the two caterpillar band walking mechanisms are installed on the two sides of the chassis respectively; the spraying mechanism is installed on the frame and comprises a pesticide storage tank, a pesticide conveying system, a nozzle bearing platform, a centrifugal pump and a stepping motor, and an output shaft of the stepping motor is connected with the nozzle bearing platform in a driving mode and drives the nozzle bearing platform to rotate; the control system comprises an image collecting device and a master controller, the image collecting device is installed at the front end of the frame, and the master controller obtains image information of the front of the sprayer through the image collecting device, obtains information of a region to be sprayed through analysis according to the image information, and controls the power mechanism, the centrifugal pump and the stepping motor to act according to the information of the region to be sprayed.
Owner:ANHUI AGRICULTURAL UNIVERSITY

Physical simulation test device and method for convergence of debris flows into rivers

The invention relates to a physical simulation test device and method for convergence of debris flows into rivers. A horizontal low end of a first debris flow tributary ditch groove, a horizontal low end of a second debris flow tributary ditch groove, a horizontal low end of a debris flow main ditch forming region groove and a horizontal high end of a debris flow main ditch circulation region groove are fixedly connected through movable rubber tapes, a rainfall simulation device is also arranged, a variable-width river main channel groove and a reservoir are arranged on a movable support device, a water outlet of the reservoir is connected with one end of the variable-width river main channel groove, the other end of the variable-width river main channel groove is connected with a triangular weir, and a horizontal high end of the debris flow main ditch circulation region groove is communicated with the side surface of the variable-width river main channel groove through a debris flow main ditch accumulation region groove. With the adoption of the physical simulation test device and method, debris flow outbreak and convergence processes can be simulated, effects of factors such as different solid matter sources, slope angles, river water flow velocities, debris flow accumulation regions, river channel intersection corners and the like on convergence (blockage) of debris flows into rivers can be studied, and the operation is convenient.
Owner:SOUTHWEST PETROLEUM UNIV
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