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49results about How to "Fast data exchange" patented technology

Intermittent induction voltage-withstanding test device and test method for inter-turn insulation test of iron-core electric reactor

PendingCN107045097AMeet the pressure test requirementsFast data exchangeTesting dielectric strengthEngineeringPhase angle
The invention relates to an intermittent induction voltage-withstanding test device and test method for inter-turn insulation test of an iron-core electric reactor. The test device comprises a controller, an inverter circuit, a chopper circuit and a detection circuit. The controller is connected with a display circuit and is connected with the inverter circuit and the chopper circuit by a drive module; and the detection circuit includes a voltage detection circuit and a current detection circuit, both of which are connected to the controller. In addition, the test method includes: the controller applies a voltage signal of a test voltage to two ends of a tested electric reactor; the controller carries out sampling on a practical voltage and a practical current of a test piece by the detection circuit and a phase difference between a sampling voltage and a sampling current is calculated; voltage boosting is carried out on the tested piece and a phase different after voltage boosting is measured and is used as a standard phase difference; and the phase difference and the standard phase difference are compared to determine the performance of insulation of the tested electric reactor. Therefore, a phase angle relation of the voltage and current can be analyzed and the quality of the tested piece can be evaluated in real time.
Owner:HARBIN UNIV OF SCI & TECH

Method for controlling an impeller-type thread laying device, impeller-type thread laying device, and winding machine

ActiveCN107848726AAchieve tiltRealize rounded side edgesFilament handlingImpellerYarn
The invention relates to a method (100) for controlling a thread laying device comprising two impellers (26, 28) which can be driven in opposite directions in order to move a thread to be wound on a rotating spool back and forth between two turning points (U1, U2) along the spool longitudinal axis by means of a traversing movement with a target traversing stroke width (Hs) of the thread laying device, said target traversing stroke width differing from a base traversing stroke width (HN). According to the invention, each impeller (26, 28) being moved in the idle traversing stroke, i.e. each idle traversing stroke impeller (26, 28), is first accelerated or braked to an overcompensation angular speed (Voc) in the idle traversing stroke interval (TL) of the impeller, said overcompensation angular speed being determined on the basis of a theoretical constant compensation angular speed (Vc) required to transfer the thread in the next turning point (U1, U2) of the traversing movement of the thread. The impeller is then moved at its specified operating angular speed (Vw) in order to receive the thread from the other impeller (26, 28) guiding the thread at the operating angular speed (Vw) in the next turning point (U1, U2) of the traversing movement of the thread. The invention further relates to a thread laying device and to a winding machine comprising such a thread laying device.
Owner:SSM萨罗瑞士麦特雷有限公司

Dual-substrate three-dimensional heterogeneous integrated chip and preparation method thereof

The application provides a dual-substrate three-dimensional heterogeneous integrated chip and a preparation method thereof. The dual-substrate three-dimensional heterogeneous integrated chip includes:a first chip including a first substrate, a first active region layer, a first storage layer, a first metal layer, a first dielectric layer, and at least one first through hole, wherein the first substrate, the first active region layer, the first storage layer, the first metal layer, and the first dielectric layer are successively stacked and connected and the at least one first through hole isdisposed inside the first dielectric layer; a second chip including a second substrate, a second storage layer, a second dielectric layer, and at least one second through hole, wherein the second substrate, the second storage layer and the second dielectric layer are successively stacked and connected, at least one second through hole is disposed inside the second dielectric layer, and the first dielectric layer and the second dielectric layer are stacked and connected; and a conductive channel connecting the inside and the outside of the dual-substrate three-dimensional heterogeneous integrated chip, and used as an input end or an output end of the dual-substrate three-dimensional heterogeneous integrated chip.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI

Three-dimensional heterogeneous integrated chip and preparation method thereof

The application provides a three-dimensional heterogeneous integrated chip and a preparation method thereof. The three-dimensional heterogeneous integrated chip includes a first chip and a second chip. The first chip includes a first substrate, a first active region layer, a first metal layer, a first dielectric layer and a first through hole. The first substrate, the first active area layer, thefirst metal layer, and the first dielectric layer are successively stacked and connected. The first through hole is disposed inside the first dielectric layer. The first through hole is connected to the outside of the first metal layer and the outside of the first dielectric layer. The second chip includes a second substrate, a first storage layer, a second dielectric layer, and a second through hole. The first storage layer is connected to the second substrate. The second dielectric layer is connected to the first storage layer. The second through hole is disposed inside the second dielectriclayer. The second through hole is connected to the outside of the second storage layer and the outside of the second dielectric layer. A first conductive channel is disposed inside the first chip. One end of the first conductive channel is connected to the first metal layer, the other end of the first conductive channel is connected to the outside of the first substrate. The first conductive channel is used as an input terminal or an output terminal of the second chip.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI

Electric power storehouse asset management system based on RFID

The invention discloses an electric power storehouse asset management system based on RFID, and relates to the technical field of electronic information. A traditional electric power measurement assetmanagement system is difficult to adapt to the development of modern large power grids. The system comprises a warehouse-in and warehouse-out management module, an inventory management module and anauthority management module. The warehouse-in and warehouse-out management module collects equipment information based on RFID, and comprises warehouse-in and warehouse-out information collection andwarehouse-in information collection based on RFID. The warehouse-in and warehouse-out management module is connected with the inventory management module to share information; and the authority management module is connected with the warehouse-in and warehouse-out management module and the inventory management module to manage the authority of the user. According to the technical scheme, multi-directional comprehensive management tracking of wareshell, ex-warehouse delivery, verification and the like of the electric power metering assets is carried out based on RFID; the metering asset management capability is improved, the flow direction and the use condition of the device are tracked in real time, a provincial linkage verification, storage and distribution system is achieved, a large amount of manpower and material resource cost is saved, and efficient, high-energy and quick electric power metering asset management is achieved.
Owner:浙江武义电气安装工程有限公司 +1

Virtual network disk device based on embedded system technology and application of virtual network disk device

The invention provides a virtual network disk device based on an embedded system technology and the application of the virtual network disk device. The virtual network disk device at least comprises a virtual module, a plurality of data transmission modules and a multi-channel mixed transmission processing module. The virtual module is used for virtualizing the network disk device which the virtual module belongs to into a device capable of exchanging data with a user device when the virtual network disk device which the virtual module belongs to is connected with the user device. Each data transmission module carries out data transmission with a multi-channel server based on at least one data transmission mode, and data transmission modes adopted in the data transmission modules are different. The multi-channel mixed transmission processing module is used for determining data to be transmitted based on the data exchange with the user device and splitting the data to be transmitted into corresponding subdata based on the available data transmission modules, and the available data transmission modules transmit the corresponding subdata to the multi-channel server to achieve multi-channel mixed transmission. Accordingly, the user data can be flexibly and rapidly uploaded conveniently.
Owner:上海高骏科技有限公司

Vehicle alarm and control system based on car networking

The invention belongs to the technical field of car networking, and discloses a vehicle alarm and control system based on car networking. A camera monitoring module is arranged, the monitored image, vehicle state, sports information, entertainment audio and video and alarm information are transmitted to an RFID radio frequency recognizing module through a car networking module, data exchanging anddownloading with a network center are conducted, and emergency rescue is conducted in emergency. The vehicle alarm and control system is clear and reasonable in structure and complete in function; when an alarm is given, an emergency rescue module can conduct processing the first time, and in cooperation with the collection of the vehicle internal monitoring image, vehicle state data and vehiclemovement trajectory information, the rescue success rate is increased; the audio and video entertainment is achieved, audios and videos can be downloaded and played at any time, the entertainment is increased, object tracking and data exchanging can be rapidly conducted through the RFID radio frequency recognizing module, recognizing work can be conducted without artificial interference in varioussevere environments, the application range is wider, and the vehicle alarm and control system has great popularization significance and value.
Owner:CHONGQING IND POLYTECHNIC COLLEGE

Near field payment connection and data exchange method and system

ActiveCN104978655BNear-field payment stabilityNear field payment is reliableNear-field transmissionPayment architectureComputer terminalData exchange
The present invention provides a near-field payment connection and data exchange method and system. The method includes: 1) When it is detected that the distance between the mobile terminal with Bluetooth function and the Bluetooth payment peripheral is less than the near-field judgment start boundary threshold, execute Step 2); 2) Establish a Bluetooth connection when it is determined that the distance between the mobile terminal and the Bluetooth payment peripheral tends to decrease; 3) It is detected that the distance between the mobile terminal and the Bluetooth payment peripheral is less than the first payment boundary threshold , send a prompt message to the Bluetooth payment peripheral to confirm the corresponding payment; 4) exchange payment data; 5) disconnect the Bluetooth connection after judging that the data exchange is completed. The present invention integrates the time-consuming Bluetooth search, connection, data exchange, and Bluetooth disconnection with user actions by setting corresponding thresholds and according to the threshold judgment mechanism, so as to realize stable and reliable near-field payment of mobile terminals with Bluetooth functions , Fast and convenient connection and data exchange.
Owner:上海智向信息科技有限公司

Controller, control system and control method of hydraulic machine movement on basis of Ethernet

The invention provides a controller, a control system and a control method of hydraulic machine movement on the basis of Ethernet. A logic circuit conversion unit is connected with a digital signal processor, data exchange between the logic circuit conversion unit and the digital signal processor are achieved through interruption control, an Ethernet control bus, a data bus and an address bus in a digital signal processor (DSP) is connected into a field programmable gata array (FPGA), the logic circuit conversion unit and an Ethernet data communication module achieve parallel data exchange between the Ethernet data communication module and the logic circuit conversion unit, the logic circuit conversion unit enables control words to be wrote in analog to digital (A / D) through a single program initiation (SPI) bus, and electric isolation is performed through a digital quantity isolation circuit at the period. An external voltage signal is converted into a 12-bit high precision digital signal through A / D conversion, a serial digital signal experiencing the digital quantity isolation is transmitted to the logic circuit conversion unit through the SPI bus, the digital signal is transmitted to the digital quantity isolation by the logic circuit conversion unit through the SPI bus, and the serial digital signal is converted into an analog quantity signal through the D / A, and the analog quantity signal is output after being amplified.
Owner:TIANJIN UNIV
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