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208results about How to "Implementation limit" patented technology

Medical wireless program control digital X-ray machine, wireless program control method thereof and special part

The invention relates to a medical wireless program control digital X-ray machine. The machine comprises X-ray generating equipment, a mobile wireless terminal, an electronic switch, a programmable control module and an X-ray detecting plate, wherein the electronic switch is connected with the programmable control module through a connecting module, the programmable control module is connected with the X-ray detecting plate, and the mobile wireless terminal is wirelessly connected with the programmable control module. By utilizing the medical wireless program control digital X-ray machine and a wireless program control method thereof, the exposure, image transmission and information transmission of a medical digital X-ray machine can be wirelessly controlled, and the wireless exposure control and wireless digital image data transmission of the medical digital X-ray machine can be realized, so that operating personnel is not limited by the distances and spaces of a hand brake cable and an image transmission cable when using the medical X-ray machine; the mobile wireless terminal of the medical digital X-ray machine is convenient to carry and flexible to install; and moreover, medical workers can be prevented from being hurt by X rays as far as possible when using the medical X-ray machine.
Owner:北京美智医疗科技有限公司

Function calling authentication and function calling method and device and authority information building method

The invention discloses a method for authentication of JsBridge function calling. The method comprises the steps of monitoring a functional calling request sent from APP, wherein information of a JsBridge function required by APP to call is contained in the function calling request, and the function calling request is used for calling the JsBridge function corresponding to the information of calling the JsBridge function; determining whether the APP has authority to call the JsBridge function corresponding to the information of the calling the JsBridge function or not according to the functioncalling request and the authority information corresponding to the APP after the function calling request is monitored, wherein the information of the JsBridge function authorized by the APP to callis stored in the authority information corresponding to the APP; and allowing the APP to call the JsBridge function when that the APP has authority to call the JsBridge function corresponding to the information of the JsBridge function is determined. The invention also discloses a device corresponding to the method, a JsBridge function calling method and device and an authority information building method. Therefore, the behavior of calling JsBridge by H5 is managed and limited, and the information safety and the running performance of a client are favorably improved.
Owner:ALIBABA GRP HLDG LTD

Cable winding disc

InactiveCN111204609AWinding effectContinuous and orderly winding and tilingFilament handlingControl theoryElectric cables
The invention relates to the field of tissue manufacturing equipment, in particular to a cable winding disc. The cable winding disc comprises a rack, a winding disc body rotationally arranged on the rack and used for winding a cable, a winding servo motor arranged on the rack and used for driving the winding disc body, and a guide device arranged on the rack, located in front of the winding disc body and used for guiding the cable, a sliding rail parallel to the axial direction of the winding disc is arranged at the position, in front of the winding disc, of the rack, the guiding device comprises an installation base capable of sliding along the sliding rail, a sliding driving device arranged on the rack and used for driving the installation base to slide, a clamping guiding wheel set arranged on the installation base and a guiding servo motor used for driving the clamping guiding wheel set to rotate, the clamping guiding wheel set comprises two guide wheels close to each other, arc-shaped guide grooves are formed in the circumferences of the guide wheels, and the arc-shaped guide grooves of the two guide wheels are matched to form a guide channel allowing the cable to pass through. According to the cable winging disc, the technical problems that cable winding tightness degree is inconsistent, and cables are stacked in a certain area are solved.
Owner:HENGAN (CHINA) PAPER IND CO LTD

Motor drive device, motor drive method and motor

ActiveCN104901593AImplementation limitSolve the problem of no-load speed regulationTorque ripple controlVector control systemsVoltage amplitudeMotor drive
The present invention relates to the technical field of motor control, and provides a motor drive device, a motor drive method and a motor. The motor drive device comprises a rotary converter, a position calculator, a speed calculation module and a speed controller; and also comprises a voltage limit calculation module performing voltage limit calculation on a speed controller output signal and then outputting a limiting voltage; a first subtracter used for obtaining a direct axis current difference; a current controller outputting a direct-axis voltage component; a quadrature-axis voltage generation module used for outputting a preset quadrature-axis voltage component; a voltage limitator performing voltage amplitude limiting and coordinate transformation on the direct-axis voltage component and the preset quadrature-axis voltage component and then outputting direct-axis voltage and quadrature-axis voltage; and a PWM controller for converting the direct-axis voltage and the quadrature-axis voltage into three-phase alternating-current voltage. The limiting voltage serves as a limit of a drive device output voltage and a quadrature-axis voltage component value is set, thereby realizing limitation of the quadrature-axis current, and thus realizing control of motor current.
Owner:GUANGDONG WELLING ELECTRIC MACHINE MFG +1

Aerial magnetic resonance underground water detecting device and method

ActiveCN109814161AReduce battery life requirementsReduce restrictionsDetection using electron/nuclear magnetic resonanceMagnetic resonance soundingAviation
The invention belongs to the field of aerial magnetic resonance sounding, and provides an aerial magnetic resonance underground water detecting device and method. The device comprises an aerial systemand a ground system, wherein the aerial system involves that an aerial magnetic resonance detection system main unit mounted on an aircraft is connected with an aerial magnetic resonance detection transmitting antenna and an aerial magnetic resonance signal receiving antenna through antenna towing cables; an aircraft noise acquisition antenna is connected with the aerial magnetic resonance detection system main unit; the ground system comprises a ground controller and a wireless information transceiver, wherein the ground controller sends coordinates and other detection information to the aerial magnetic resonance detection system main unit through the wireless information transceiver; the wireless information transceiver transmits information between the aerial system and the ground system. An airship, a helicopter and other aircrafts are utilized to carry a novel magnetic resonance underground water detector, and underground water in a surveying area is rapidly detected, thereby improving the detection efficiency; the limitation of the earth surface environment conditions on a magnetic resonance sounding method in the surveying area is also reduced, and the application range ofthe magnetic resonance sounding and water exploration method is further broadened.
Owner:JILIN UNIV

Lucky draw qualification determination method and device, server and storage medium

InactiveCN108022126AImplement sweepstakes eligibility restrictionsPromote good progressMarketingOperating systemTime quantum
The embodiment of the invention discloses a lucky draw qualification determination method and device, a server and a storage medium. The method comprises the steps of: receiving a lucky draw triggering request sent by a client; according to the lucky draw triggering request, determining whether a user account corresponding to the client and a machine identifier of a mobile terminal corresponding to the client participate in lucky draw in a preset time quantum or not; and if any one of the user account corresponding to the client and the machine identifier of the mobile terminal participates inthe lucky draw in the preset time quantum, returning feedback information of having no lucky draw qualification to the client to indicate the client to display prompting information of having participating in the lucky draw, if the user account corresponding to the client and the machine identifier of the mobile terminal corresponding to the client do not participate in the lucky draw in the preset time quantum, returning feedback information of having lucky draw qualification to the client to indicate the client to display a lucky draw link button for performing lucky draw. The method can determine lucky draw qualification to allow the lucky draw to be carried out well.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Low-power-consumption single-phase energy storage converter, control method and control system thereof

The invention discloses a low-power-consumption single-phase energy storage converter, a control method and a control system thereof. The low-power-consumption single-phase energy storage converter comprises an AC/DC converter module, a DC/DC converter module and an energy storage member. Single-phase AC current is connected with the input end of the AC/DC converter module. The output end of the AC/DC converter module is connected with the input end of the DC/DC converter module. The output end of the DC/DC converter module is connected with the energy storage member. The energy storage member comprises a first energy storage member and the second energy storage member which are connected in series. The cathode end of the first energy storage member is connected with the anode end of the second energy storage member. The invention provides the low-power-consumption single-phase energy storage converter for aiming at single-phase AC current. A unique topological structure which can realize redundancy and serial connection of a battery module is adopted for the DC/DC converter part, thereby reducing limitation to DC voltage fluctuation by the system. Furthermore full-time operation of the power switch of the DC/DC converter module in a high-frequency state is not required, thereby improving system efficiency in a relatively high manner and reducing power loss.
Owner:江苏林洋亿纬储能科技有限公司 +1

International roaming limiting method and system

The invention discloses an international roaming limiting method and system. The method comprises the following steps: sending a registration message to CSCF by a terminal, wherein the registration message comprises a service type and a terminal access state; if the CSCF judges the service type to be VoWiFi, judging whether the terminal access state is a cellular network mode or not; if the CSCF judges the terminal access state to be the cellular network mode, judging whether the terminal is allowed to roam in a roaming place or not according the acquired VLR information, if a fact that the terminal is allowed to roam in the roaming place is judged, allowing a VoWiFi service of the terminal to be registered, and if a fact that the terminal is not allowed to roam in the roaming place is judged, rejecting registration of the VoWiFi service of the terminal; and if the CSCF judges the terminal access state not to be the cellular network mode, judging whether the terminal is allowed to roamin the roaming place according to the acquired position information, if the fact that the terminal is allowed to roam in the roaming place is judged, allowing the VoWiFi service of the terminal to beregistered, and if the fact that the terminal is not allowed to roam in the roaming place is judged, rejecting the registration of the VoWiFi service of the terminal. The method disclosed by the invention realizes limitation of a VoWiFi roaming service.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD

Needle board moving mechanism of computer knitting flat knitting machine

InactiveCN101581005AReasonable structureAccurate and reliable displacementWeft knittingElectrical controlElectric machinery
The invention relates to a needle board moving mechanism of a computer knitting flat knitting machine, which belongs to the technical field of knitting machines. The needle board moving mechanism comprises a needle bed base, a motor base, a motor, a drawbar actuating device and a drawbar, wherein the drawbar actuating device comprises a first supporting seat, a second supporting seat, a g screw rod, a screw rod nut and a connecting block; the first supporting seat is fixed at one end of the needle bed base, the second supporting seat is fixed at the other end of the needle bed base, and the two supporting seats are parallel with each other; two ends of the screw rod are arranged on the first and the second supporting seats and are in driving connection with a driving device; the screw rod nut is arranged on the screw rod; the connecting block is fixed on the screw rod nut; the drawbar is fixedly connected with the connecting block; and the motor is electrically connected with an electric control device of the computer knitting flat knitting machine. The needle board moving mechanism has the advantages that the displacement of the needle board is accurate and reliable, and not only the motor can be protected but also the precision degree of the displacement of the needle plate is guaranteed.
Owner:JIANGSU JINLONG TECHNOLOGY CO LTD

Split-phase type low-power-consumption energy storage current transformer and control method and control system thereof

The invention discloses a split-phase type low-power-consumption energy storage current transformer and a control method and a control system thereof. The current transformer comprises an AC/DC transformation module, a DC/DC transformation module and energy storage bodies. Three-phase alternating current is connected with the input end of the AC/DC transformation module which has a four-wire star connection or three-wire delta connection structure. The output end of the AC/DC transformation module is connected with the input end of the DC/DC transformation module. The output end of the DC/DC transformation module is connected with the energy storage bodies. The energy storage bodies comprise a first energy storage body and a second energy storage body which are connected in series. The negative electrode end of the first energy storage body is connected with the positive electrode end of the second energy storage body. The DC/DC transformation part of the current transformer uses a creative topological structure capable of realizing redundancy and series connection of battery modules so as to reduce the limitation of the system for DC voltage fluctuation. Besides, the power switch of the DC/DC transformation module does not need to work in the high-frequency state in a full-time manner so that the efficiency of the system can be greatly enhanced and power loss can be reduced.
Owner:江苏林洋亿纬储能科技有限公司 +1
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