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319results about How to "Reduce standby time" patented technology

UE power saving method and system thereof

The invention discloses a user equipment (UE) power saving method and a system thereof. The method comprises the following steps: UE sends a request message of entering into a power saving state to an evolved Node B (eNB) and requests to modify self configuration; the eNB receives the request message and indicates the UE to enter into the power saving state; the UE executes a corresponding operation according to indication of the eNB and enters into the power saving state. Through the method and the system of the invention, problems of waste of electric quantity of a cell of the UE and shortening of standby time caused by that the UE monitors physical downlink control channel (PDCCH) and other unnecessary data transmission excessively when a network application and a service are finished are solved.
Owner:ZTE CORP

Non-contact three-dimensional optical measuring head and method for in-situ measurement of numerical control machine

The invention discloses a non-contact three-dimensional optical measuring head and a non-contact three-dimensional optical measuring method for in-situ measurement of a numerical control machine, which are characterized in that: the non-contact three-dimensional optical measuring head consists of an image measuring system and a focus positioning system. The non-contact three-dimensional optical measuring method comprises the following steps of: firstly, making a focus judgment on the image measuring system by using an astigmatism method, determining a measuring plane, positioning the non-contact three-dimensional optical measuring head in a Z-axis direction at the same time and acquiring a Z-axis direction positioning value of a surface characteristic point of a workpiece; secondly, performing two-dimensional image measurement on basic geometric elements, of the workpiece, on the measuring plane by using a surface measuring method in image projection measurement to obtain two-dimensional plane coordinate values of the surface characteristic point of the workpiece; and finally, combining the two-dimensional plane coordinate values with the Z-axis direction positioning value to obtain the three-dimensional coordinate values of the surface characteristic point of the workpiece. The non-contact three-dimensional optical measuring head and the non-contact three-dimensional optical measuring method can effectively perform high-precision in-situ measurement of the geometric size of the workpiece processed by the numerical control machine, shorten the manufacturing period of products effectively and guarantee product quality.
Owner:HEFEI UNIV OF TECH

High-density printed circuit board (PCB) test machine and method

The invention provides a high-density printed circuit board (PCB) test machine comprising a material platform, PCB clamping sampling mechanisms, an automatic material feeding and discharging device, a test clamp and a central controller. Due to the combination of the operation of the automatic material feeding and discharging device and the control of the alignment of the PCB clamping sampling mechanisms and the test clamp, the PCB can be tested automatically, and the PCB test capacity, precision and efficiency of the high-density PCB test machine can be greatly improved. The invention also provides a high-density PCB test method based on the high-density PCB test machine. Due to the unified material loading and the combination of the two PCB clamping sampling mechanisms, the two PCB clamping sampling mechanisms can collect the images of the PCBs thereon at the same time and feed back the collected images of the PCBS to the central controller to test the alignment of the two PCB clamping sampling mechanisms and the test clamp. Due to the timely material unloading and the material reloading after the test of two PCB clamping sampling mechanisms and the test clamp, the standby time of the test clamp is shorted to the maximum extent, the whole test process is standardized, and the test efficiency is ensured.
Owner:SHENZHEN MASONE ELECTRONICS

Heat-pump water heater with dual water tanks and heating method thereof

The invention discloses a heat-pump water heater with dual water tanks and a heating method thereof. The heat-pump water heater with dual water tanks comprises a compressor, a condenser, a liquid storage device, a drying filter, a throttle device, an evaporator, a gas-liquid separator, a heat-storing water tank, a heating water tank, a reversing device and the like, wherein the reversing device periodically changes the flow direction of water in the heating water tank and the condenser, so that cold water in the heating water tank flows through the condenser to and fro and is gradually heated to a preset temperature; the heated hot water is transferred from the heating water tank to the heat-storing water tank and stored for users to use; cold water is simultaneously supplemented into the heating water tank in the transfer process and continuously heated to the preset temperature after the supplement is finished; and cold water is simultaneously supplemented into the hot water of the heat-storing tank during use. The insides of the heating water tank and the heat-storing water tank are in float rolling sleeve structures which are used for isolating the cold water from the hot water in the water tanks, thereby effectively reducing the irreversible heat loss inside the water tanks of an air source heat-pump water heater; in addition, the invention has the advantages of high efficiency, convenient installation and running, high safety, wide application range and the like.
Owner:NANJING UNIV OF SCI & TECH

Automatic yarn feeding device for full-automatic hank mercerizing machine

The invention discloses an automatic yarn feeding device for a full-automatic hank mercerizing machine, which improves the automation degree and production efficiency of the full-automatic hank mercerizing machine and improves the working conditions. The automatic yarn feeding device comprises a sliding table, an upright post, a swing arm and a yarn support tube bracket; a sliding table seat and a mechanism borne by the sliding table seat can enter or exit along the axis direction of a mercerizing roll to feed or discharge yarns for the mercerizing roll; the swing arm can rotate front and back 180 degrees on a horizontal plane to replace mercerized and non-mercerized yarns; and yarn bracket of the swing arm is provided with yarn support tubes, and the upper and lower opposite yarn support tubes form a group. During feeding yarns, the two yarn support tubes are inserted into the outer edge of the mercerizing roll in an opposite state and rotate 180 degrees in a reverse state, the unprocessed yarns fall on the mercerizing roll, and the yarn support tubes are retracted and separated from the mercerizing roll. During discharging the yarns, the two yarn support tubes are reversely inserted between the mercerizing rolls and rotate 180 degrees in an opposite state, the mercerized yarns fall on the yarn support tubes, and the yarn support tubes are retracted and separated from the mercerizing rolls.
Owner:SHANDONG TONGJI ELECTROMECHANICAL

Cylinder body turnover type cleaning machine

The invention discloses a cylinder body turnover type cleaning machine which comprises a base, wherein a revolution cleaning frame is mounted on the base in a rotating manner, the revolution cleaning frame is in power connection with a revolution driving device, a cleaning working area is arranged on one side of the revolution cleaning frame, two working positions which are driven by rotation of the revolution cleaning frame to alternately enter into the cleaning working area are arranged on the revolution cleaning frame, a cylinder body turnover bracket is mounted on the revolution cleaning frame in a rotating manner, the cylinder body turnover bracket is in power connection with a turnover driving device, and a cylinder body fixing and clamping device is arranged between the cylinder body turnover bracket and a cylinder body; and a cylinder body cleaning device is mounted in the cleaning working area. Driven by the rotation of the resolution cleaning frame, the two working positions can alternately enter into the cleaning working area, the standby time is reduced and the production efficiency is improved; and the cylinder body is clamped on the cylinder body turnover bracket on the two working positions, the cylinder body turnover bracket can drive the cylinder body to overturn, all the surfaces of the cylinder body can be conveniently cleaned, the heavy and trivial manual turnover operation can be avoided, and the production efficiency is also greatly improved.
Owner:潍坊浩泰机械有限责任公司

Site yield statistical method for multi-site parallel test

The invention discloses a method for determining the state of testing hardware by using statistical test data in the process of testing a wafer of an integrated circuit. The test data generated in the process of testing the wafer reflects the physical parameter of each chip, the function of an internal module, a manufacturing process of each chip, and the state of the testing hardware in the testing process. By a site yield statistical method for a multi-site parallel test, whether the state of the testing hardware in the testing process is defective or not is checked. By the method, the yield of each site is obtained through the statistical induction of massive test data, and specific bin value distribution is obtained, so that the failure cause of the testing hardware can be quickly found, solution measures are taken, and test quality is ensured.
Owner:BEIJING CHIPADVANCED
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