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407results about How to "Implement feedback" patented technology

High-efficient logistic scheduling system and method

The invention relates to a high-efficient logistic scheduling system and method. The high-efficient logistic scheduling method comprises the following steps: a vehicle scheduling center confirms a vehicle, which meets information characteristic elements of cargos to be scheduled according to information of cargos to be scheduled, as a scheduling object; the vehicle scheduling center confirms a corresponding scheduling strategy according to the information of cargos to be scheduled so as to generate scheduling information; the vehicle scheduling center sends the scheduling information to a wireless vehicle terminal through a wireless communication module; the wireless vehicle terminal receives the scheduling information, and sends a reply of a driver to the vehicle scheduling center; and after a positive reply is received from the wireless vehicle terminal, the vehicle scheduling center sends the characteristic information of the present scheduling task undertaker to a client. The vehicle scheduling system disclosed by the invention comprises the vehicle scheduling center and the wireless vehicle terminal. By adoption of the high-efficient logistic scheduling system and method disclosed by the invention, the vehicle scheduling center can plan an optimal driving path and an optimal cargo loading vehicle, so that the transportation efficiency is improved, and the transportation cost is reduced.
Owner:SHENZHEN SEG SCI NAVIGATIONS CO LTD

Large-scale MIMO channel state information feedback method based on deep learning

The invention discloses a large-scale MIMO channel state information feedback method based on deep learning. The method comprises the following steps: firstly, carrying out two-dimensional discrete Fourier transform (DFT) on a channel matrix H-wave of MIMO channel state information in a spatial frequency domain on a user side, so that a channel matrix H which is sparse in an angle delay domain isobtained; secondly, constructing a model CsiNet comprising a coder and a decoder, wherein the coder belongs to the user side and is used for coding the channel matrix H into codons with a lower dimension, and the decoder belongs to a base station side and is used for reconstructing an original channel matrix estimation value H-arrow from the codons; thirdly, training the model CsiNet to obtain model parameters; fourthly, carrying out two-dimensional inverse DFT on a reconstructed channel matrix H-arrow which is output by the CsiNet, so that a reconstructed value of the original channel matrixH-wave in the spatial frequency domain is recovered; and finally, using the trained model CsiNet for compressed sensing and reconstruction of channel information. The method provided by the inventionhas the advantages that large-scale MIMO channel state information feedback expenditures can be reduced, and an extremely high channel reconstruction quality and an extremely high channel reconstruction speed can be achieved.
Owner:SOUTHEAST UNIV

Method and system for e-commerce transactions

The invention discloses a method and a system for e-commerce transactions. The method comprises the following steps that a buyer releases purchase order information through a buyer terminal, a network server automatically matches corresponding supplier information, a matched supplier feeds back quotation information to the network server according to the order information, and the buyer bargains with the corresponding supplier according to the quotation information to generate transaction order information; the network server prompts the supplier to update production schedule information in real time; the supplier updates the production schedule information and delivery schedule information in real time through the network server, the delivery schedule information comprises commodity inspection schedule, customs clearance schedule and logistics customs clearance and dispatch schedule, and the buyer and the supplier respectively feed back transaction evaluation information to the network server. The method and the system disclosed by the invention can carry out automatic identification, matching and schedule tracking and prompting on two parties of transactions, realize real-time updating, query and feedback of the transaction status, reduce the transaction risk and cost, and improve the working efficiency and success rate of transactions.
Owner:SHENZHEN HONGHAI IMPORTS & EXPORTS

Data transmission method in radio link control layer acknowledged mode

The invention provides a data transmission method in a radio link control layer acknowledged mode, which comprises the following steps: establishing a logical channel message queue for a logical channel between a transmitting side and a receiving side; when the transmitting side transmits data through a first logical channel, transmitting the data after packeting and segmenting the data; after the receiving side receives the data packets, analyzing the data packets which pass through the valid detection, storing the data packets in the receiving cache queue or resegmenting queue of a second logical channel according to the analysis result, updating the parameters of a receive window, and submitting the data packets after the data packets satisfy the requirements; desegmenting and depacketing the data packets submitted by a submission queue, submitting the recombined integrated service data unit to an upper layer, constructing a status report, and transmitting the status report to the transmitting side; and after the transmitting side receives and analyzes the status report, processing the status report, and retransmitting the data when detecting loss or transmitting errors in the previously transmitted data packets according to the status report.
Owner:北京中科晶上科技股份有限公司

Flexible tactile sensor array and array scanning system applied to same

The invention discloses a flexible tactile sensor array and an array scanning system applied to the same. The sensor array comprises a projection layer, an upper electrode layer, a middle layer and alower electrode layer, wherein the projection layer is provided with a plurality of projections arranged in an array; the upper electrode layer is provided with a plurality of electrodes and is connected with the projection layer; the middle layer is provided with a plurality of piezoresistive units and is connected with the upper electrode layer; each piezoresistive unit corresponds to each edgeof each projection one to one; the lower electrode layer is provided with a plurality of electrodes and is connected with the middle layer; and each electrode of the upper electrode layer and each electrode of the lower electrode layer are correspondingly interconnected with each piezoresistive unit of the middle layer. The flexible tactile sensor array disclosed by the invention is simple and reliable in production process and low in cost, meanwhile, overcomes the defect of poor flexibility of a conventional silicon-based tactile sensor, has higher sensitivity, is short in response time and can implement real-time detection and feedback on a contact force.
Owner:INST OF ELECTRONICS CHINESE ACAD OF SCI

Upper limb rehabilitation training method based on brain-computer interface and virtual reality technology

ActiveCN106621287AEffective motor imagery trainingLower decision thresholdGymnastic exercisingDiagnostic recording/measuringBrain computer interfacingData acquisition
The invention discloses an upper limb rehabilitation training method based on a brain-computer interface and a virtual reality technology. A patient wears an electrode cap and a pair of VR glasses, and a computer, an EEG amplifier and a smartphone are connected; the computer judges whether the patient is trained for the first time or not; if yes, EEG signals are collected, individualized classifier calibration is performed, and then one training is started; otherwise, one training is directly started; in the training process, the pair of VR glasses and the smartphone construct an upper limb training action scene for a first-person perspective for the patient, the patient controls motions of the upper limb in a virtual scene in real time through continuous exercise imagination practice, an BCI module in the computer automatically adjusts the classifier according to the current training effect of the patient; after training is finished, the classifier of the BCI module performs self-adaptation adjustment for next training, it is ensured that training difficulty adapts to the patient functional recovery situation, data collection does not need to be performed before each rehabilitation training for calibration, and time is shortened.
Owner:XI AN JIAOTONG UNIV

Testing system of cutting force and torque loading reliability of numerical control turret power knife rest

The invention discloses a testing system of cutting force and torque loading reliability of a numerical control turret power knife rest, which comprises a supporting part and a loading part. The supporting part comprises a numerical control turret power knife rest supporting part, a cutting force loading supporting part and a torque loading supporting part. The numerical control turret power knife rest supporting part is fixed at left side below a floor iron, and the torque loading supporting part is located at the right side below the floor iron. The loading part comprises a dynamic cutting force loading part, a cutting torque loading part and a loading bar. The dynamic cutting force loading part is connected with a rotating plate in the cutting force loading supporting part through a 2# sliding plate. The cutting torque loading part comprises an eddy current dynamometer and an elastic coupler. The eddy current dynamometer is installed on a 3# pedestal, the output end of the eddy current dynamometer is connected with the elastic coupler, the elastic coupler is connected with a right end key of the loading bar sleeved with a bearing loading unit, and the left end of the loading bar is fixedly connected with the right end of a power knife seat on the measured numerical control turret power knife rest.
Owner:JILIN UNIV

Quick phototyping by laser cladding layer height measuring device and closed-loop control method thereof

The invention discloses a quick phototyping by laser cladding layer height measuring device and a closed-loop control method thereof. The quick phototyping by laser cladding layer height measuring device comprises three laser 2D (two-dimensional) displacement sensors, a control unit, an upper computer and a display. According to the closed-loop control method, the three laser 2D displacement sensors are spaced at an included angle of 120 degrees and mounted around a cladding bit for measuring the height of the cladding layers on the side lines of a closed laser equilateral triangle around a molten metal bath; every laser 2D displacement sensor is provided with a sensor controller for converting CMOS (complementary metal-oxide-semiconductor) image signals into height data and transmitting the height data to a control unit via an Ethernet network; the control unit is used for processing the data collected by the three laser 2D displacement sensors, computing the height of cladding layer and feeding the height back to the upper computer; the display is used for in real time displaying the height date measured by the three laser 2D displacement sensors and the layer height data processed by the control unit. The quick phototyping by laser cladding layer height measuring device and the closed-loop control method thereof achieves real-time precise control of the single-layer lifting capacity of the cladding bit.
Owner:XI AN JIAOTONG UNIV

Multifunctional sensing flexible sensor and preparation method thereof

The invention belongs to the field of flexible sensors, and discloses a multifunctional sensing flexible sensor and a preparation method thereof. The sensor comprises a top electrode layer, a middle dielectric layer and a bottom electrode layer, wherein the top electrode layer and the bottom electrode layer are the same in structure, and each of the top electrode layer and the bottom electrode layer comprises a flexible base material and liquid metal inlaid in the base material; the middle dielectric layer is arranged between the top electrode layer and the bottom electrode layer, and a plurality of micron-sized holes are arranged in the middle dielectric layer; when the sensor bears the pressure, the tensile or is close to a conductor, the pressure, the tension or a distance between the conductor and the sensor can be obtained by measuring the change of the capacitance of the sensor; when the friction between an object to be measured and the top electrode layer occurs, the pressure applied to the top electrode by the object to be measured is obtained by measuring the change of the voltage in the top electrode layer. The invention also discloses a preparation method of the sensor.According to the multifunctional sensing flexible sensor and the preparation method thereof, the high-sensitivity and multifunctional measurement of the flexible sensor are realized by combining two sensing principles of capacitive sensing and friction power generation.
Owner:HUAZHONG UNIV OF SCI & TECH

Express way ramp traffic stream mergence guidance method and system based on roadside device

The invention discloses an express way ramp traffic stream mergence guidance method and system based on a roadside device. The method comprises that the roadside device acquires the real-time drivingspeed and the real-time position of a traffic stream in the artery of an express way and the real-time driving speed and the real-time position of a traffic stream in the ramp of the express way in real time, and feeds the data back to a monitoring center; when a vehicle reaches a ramp confluence trigger point, the monitoring center finds out an artery merging interval, calculates a condition whether the ramp vehicle can successfully merge with the artery; if a merging condition is satisfied, guides the ramp vehicle to the artery according to a calculation result and monitors the vehicle untilthe vehicle leaves a monitoring range. According to the acquired real-time data, the method provides sufficient clearance for the ramp vehicles to merge with the traffic stream in the artery, provides a driver with the specific merging time and the merging speed that should be reached so as to realize the fast and efficient guidance for the ramp vehicles to merge with the traffic stream in the artery. There is no need for the acquired vehicle to proactively provide information so as to improve the reliability and coverage of the method.
Owner:SOUTHEAST UNIV

Current working point giving system and method for permanent magnet alternating-current motor

The embodiments of the present invention disclose a current working point giving system and method for a permanent magnet alternating-current motor. The system comprises a pseudo model feedback system, a torque controller, a MTPA solution unit and a flux weakening working point switching unit; the pseudo model feedback system enables the current working point giving system for the permanent magnetalternating-current motor to be de-coupled from other control systems with the direct-axis current final given value and quadrature-axis current final given value of a previous control beat adopted as input, so that the bandwidth of the torque controller can be designed to be very high, and the feedback of the parameters and output torque estimated value of the permanent magnet motor can be realized; the torque controller can be used for achieving the fast and high-precision output of torques; the MTPA solution unit can be used for accurately calculating MTPA curves under different loads; andthe flux weakening working point switching unit can be used for achieving flux weakening control and MTPA control switching balance, a flux weakening control part can also be decoupled from the othercontrol systems, and therefore, flux weakening control response speed can be increased. With the system and method adopted, the current working point of the permanent magnet alternating-current motorcan be given quickly and effectively, and the full-working area control performance of the permanent magnet motor can be improved.
Owner:NEUSOFT REACH AUTOMOTIVE TECH SHANGHAI CO LTD

Quality control method, device and equipment for product assembly process

The invention discloses a quality control method, device and equipment for a product assembly process. The quality control method for the product assembly process comprises the following steps of constructing a digital twinning quality control model; acquiring the quality data of a physical workshop through the digital twinning quality control model; and calculating the change trend of the qualitydata at the next moment according to the state change of the quality data, and obtaining a calculation result. According to the embodiment of the invention, the digital twinning quality management and control model for the cooperative work of the physical workshop, a virtual workshop and a workshop production management system is constructed, so that the acquisition, analysis and feedback of thequality data in the assembly process are realized; the future change trend of the quality data is predicted according to the current state change of the quality data, an operator can be reminded to adjust the quality data in time, the quality data can be regulated and controlled within a reasonable range, the method, device and equipment is suitable for the discrete assembly process, and a new wayis provided for the complex product quality management and control.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Indicating and feedback method, system and apparatus of uplink control channel in multi-carrier wave system

The invention discloses an indicating method of an uplink control channel in a multi-carrier wave system. The method comprises the steps as follows: a network side distributes the one-to-one uplink control channel for downlink carrier wave occupied by a terminal; the network side sends the corresponding relation of the uplink control channel and a downlink control channel distributed for each terminal to the corresponding terminal and indicates the terminal to determine the uplink control channel of feedback information carrying continuous scheduling data according to the corresponding relation of the uplink control channel and the downlink control channel when the continuous scheduling data are received through the downlink carrier wave. Through the invention, the terminal can determine the uplink control channel which transmits the feedback information corresponding to the continuous scheduling data to the network side through the corresponding relation of the uplink control channelindicated by the network side and the downlink carrier wave occupied by the terminal. The invention also discloses a method, a network side apparatus, a terminal and a communication system for transmitting the feedback information.
Owner:DATANG MOBILE COMM EQUIP CO LTD

Processing method, device and system for channel quality indicator

The invention discloses a processing method, device and system for a channel quality indicator, and relates to the field of communications. In the application scenario that user equipment can only receive reference signals on a part of a system frequency band in one transmission time interval, CQI measuring and CQI feedback of the UE are achieved, and the using range of the CQI measuring and the using range of the CQI feedback of the UE are widened. The method includes the steps that according to a preset measuring interval, the UE measures the reference signals on an appointed non-current-lingering sub-band in the measuring interval, then CQI is calculated, the calculated CQI is fed back to a base station, the measuring interval is any appointed time quantum before the time when the CQI is fed back, and the base station will not perform dispatching downlink on the sub-band where the UE currently lingers in the measuring interval, wherein the sub-band where the UE lingers is a special working frequency band selected when the UE is initially connected in, or the working frequency band when the UE receives downlink data is defaulted without special instructions of the base station. The processing method, device and system for channel quality indicator is used for the CQI measuring and the CQI feedback in the scenario.
Owner:HUAWEI TECH CO LTD

Stress path full-automatic hydraulic servo control type rigid-flexible multifunctional triaxial apparatus

The invention discloses a stress path full-automatic hydraulic servo control type rigid-flexible multifunctional triaxial apparatus which comprises a loading frame, a double chamber pressure chamber, a base, a pressure head, a loading system, a data measurement and collection device and a control device, wherein the double chamber pressure chamber is arranged at the periphery of a sample, the pressure head and the base are respectively arranged at the upper end and the lower end of the sample, the loading frame is arranged at the outer side of the double chamber pressure chamber, the double chamber pressure chamber comprises an inner pressure chamber and an outer pressure chamber arranged at the periphery of the inner pressure chamber, the loading system is used for carrying out a loading test on the sample, the data measurement and collection device is used for collecting and measuring loading test data, and the control device is respectively connected with the loading system and the data measurement and collection device and used for controlling the loading system and acquiring the loading test data obtained by the data measurement and collection device. With the adoption of the stress path full-automatic hydraulic servo control type rigid-flexible multifunctional triaxial apparatus, accurate measurement of unsaturated soil volume deformation can be carried out.
Owner:INST OF MECHANICS - CHINESE ACAD OF SCI

Impeller-type energy feedback shock absorber

The invention relates to an impeller-type energy feedback shock absorber, which is mainly used in the technical field of vehicles. The impeller-type energy feedback shock absorber comprises a shock absorbing pressure cylinder, an energy conversion device and an auxiliary device, wherein the shock absorbing pressure cylinder comprises a cylinder body and a hollow piston rod; the energy conversion device comprises an impeller device, an output shaft, a coupling, a transmission, a flywheel and a power generator; and the auxiliary device comprises a sealing ring, a one-way valve and a fluid treatment device. When a vehicle runs, an uneven pavement enables the cylinder body and the piston rod of the shock absorber to move relatively to stimulate fluid in the cylinder body to flow back and forth between an upper chamber and a lower chamber. The flowing of the fluid is converted into one-way rotary motion through the impeller device, so as to drive the power generator to generate power. The impeller-type energy feedback shock absorber has the advantages that the axial size is small and the structure is more compact; the output driving direction is constant, the impact is reduced and the service life and the efficiency are improved; and the flow of a working medium in the reciprocating travel is high, work is done fully, the energy feedback effect is better and the energy feedback can be reliably realized under working conditions of high-frequency small amplitude and low-frequency large amplitude.
Owner:CHINA UNIV OF MINING & TECH
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