9results about How to "Improve the realization effect" patented technology

This invention relates to the field of speech recognition technology, specifically a spoken pronunciation correction and evaluation method. The method includes: constructing an audio time-series sequence containing multiple phonemes based on the standard text spoken by the user; comparing the audio features corresponding to different phonemes in the audio time-series sequence based on the standard pronunciation of each phoneme to locate the pronunciation deviation position corresponding to each phoneme; if the current phoneme has a pronunciation deviation position, performing contextual scene analysis on the pronunciation deviation position by combining the duration, interval, and tone of the preceding and following phonemes to determine the deviation type in the current phoneme's context; identifying the user's abnormal pronunciation patterns; and configuring correction weights for each abnormal pronunciation pattern based on the difference feature values ​​between any two abnormal pronunciation patterns, and determining the correction direction corresponding to each phoneme according to the correction weights of the abnormal pronunciation patterns. This achieves targeted and efficient spoken pronunciation correction.

The application relates to an acceleration method of an SM3 cryptographic hash algorithm and an instruction set processor, wherein the acceleration method is based on an SM3 extension instruction set, parallel pipeline and instruction level parallel technology are adopted to accelerate the execution of the SM3 cryptographic hash algorithm; the SM3 extension instruction set adopts a RISC architecture, and comprises an SM3 message word extension instruction and an SM3 working variable word iteration update instruction; the SM3 message word extension instruction adopts a multi-message word parallel extension algorithm to accelerate an SM3 message extension function; the SM3 working variable word iteration update instruction adopts a multi-round iteration fusion algorithm to accelerate an SM3 iteration compression function. The instruction set processor supports the SM3 message word extension instruction and the SM3 working variable word iteration update instruction to be executed in a pipeline mode, and the delay is 1 beat and 5 beats respectively. The application can significantly improve the speed of the processor in executing the SM3 cryptographic hash algorithm.

The present disclosure relates to a communication method, a communication device, a communication system and a storage medium. The communication method comprises: a terminal sending first information to a network device, or sending second information to the network device; wherein the first information is used for requesting to establish a bearer for a first service, and the second information is used for requesting to re-establish or recover a bearer for the first service. In this way, the establishment, re-establishment or recovery of a bearer required by the terminal to implement a service can be completed in time, thereby improving the implementation effect of the service.

This utility model discloses a disposable snap-on trouser-style diaper, which has a longitudinal center line, a transverse fold line, a front piece, a back piece, and a crotch area, wherein the crotch area connects the front and back pieces. The trouser-style diaper includes: a lining layer facing the body, an outer cover layer, and an absorbent core, wherein a breathable bottom film layer is disposed between the outer cover layer and the absorbent core. It also includes a fastening system and a self-illuminating indicator, wherein the self-illuminating indicator is located at at least one of the following: fasteners at the earpiece, a front waistband at the front piece, the breathable bottom film layer or the outer cover layer, and their components. This allows for visual cues sufficient for caregivers to operate the diaper in dark environments at low cost and without significant changes to the manufacturing process, which helps to enhance product competitiveness.

A server, a lifesaving system, a method, and a program. The server (10) has a determination unit (315), an acquisition unit (302), and a selection unit (325). A determination unit (315) determines whether or not a life-saving activity is necessary for the employee (EP1). The acquisition unit (302) acquires predetermined information from an employee database (25) including personal information of a plurality of constituent personnel of a predetermined organization. The prescribed information is information relating to the suitability of the lifesaving activity for each of the plurality of constituent persons. When the determination unit (315) determines that the lifesaving activity is necessary, the selection unit (325) selects a lifesaving person instructed to perform the lifesaving activity on the employee (EP1) from among the plurality of constituent persons in accordance with the prescribed information.

The invention provides a multi-level coordinated compensation reactive power optimization method and device based on second-order cone relaxation, and relates to the technical field of power distribution network loss reduction. The method comprises the steps that a reactive power optimization power flow mathematical model of a power distribution network is acquired, and the power distribution network comprises a main station side, a switching station and a power distribution room; an objective function of the reactive power optimization power flow mathematical model is constructed based on power data of a master station side, a switching station and a power distribution room, and penalty factors in the objective function comprise node voltage out-of-limit parameters and charging reactive power reverse transmission parameters; and optimizing the reactive power optimization power flow mathematical model based on a second-order cone relaxation algorithm to obtain a multi-level coordinated compensation reactive power optimization strategy of the power distribution network. According to the method, the reactive power optimization power flow mathematical model of the power distribution network is obtained, reactive power compensation is carried out on the power distribution network at the main station side, the switching station and the power distribution station, the distribution uniformity of reactive power in the power distribution network is improved, and the voltage stability of the power distribution network is further improved.

The application relates to a dv / dt tolerance test circuit and method for a power device, which comprises a gate large-current driving circuit and a main circuit; the main circuit comprises MOS3, a device to be tested, a driving pulse generator V GS , a capacitor C2, resistors R G and R4, and a high-voltage direct-current voltage source V2; the gate large-current driving circuit is connected with the gate of MOS3, is used for controlling the fast turn-on and turn-off of MOS3, clamping the gate voltage of MOS3 at a safe value, and adjusting the size of dv / dt of the main circuit; at the moment of the turn-on of MOS3, one end of the capacitor C2 is forced to be grounded, so that the voltage across the capacitor C2 is rapidly applied to the device to be tested, and then a large dv / dt pulse voltage is generated. The application has higher reliability, the size of the dv / dt pulse voltage can be adjusted, the observation mode of indirect measurement has low precision requirement on the test equipment, the cost of the test equipment can be greatly reduced, and the realizability is high.

The invention belongs to the technical field of rescue well positioning result stability evaluation. The invention provides a rescue well positioning result stability evaluation method based on a Raida criterion. According to the embodiment of the invention, for the situation that the accuracy of data stability evaluation is not high due to the fact that the singular value exists in the distance result obtained by the optimization algorithm in the accident well positioning algorithm by using the improved Bezier model, the singular value of the distance result obtained by the optimization algorithm is eliminated by using the Raida criterion; and carrying out stability evaluation on the rejected data group. According to the method, the wrong optimal result is judged to a certain extent and is eliminated, so that the data of the optimal result is more reasonable. According to the method, the implementation volume is small, the implementation effect is high, manual secondary judgment on result data is not needed, and the processing speed of partial optimization algorithm results is increased. According to the method, related statistical physical quantities are combined, stability analysis is carried out on the processed data, and the stability result is visual and accurate.

This invention discloses a method and system for Wi-Fi backscatter covert communication utilizing the FCS (Focus Cross Section) characteristic, belonging to the field of wireless communication. The implementation method of this invention is as follows: the transmitting tag encodes covert information into location information, and based on the location information containing the covert information encoding, generates an intentional error during the backscattering of the Wi-Fi signal. After demodulating the Wi-Fi backscattered signal, the receiving end uses the FCS characteristic to determine the location of the intentional error, and demodulates the covert information according to the covert information encoding, thus realizing Wi-Fi backscatter covert communication using the FCS characteristic. By encoding the covert information into intentional error location information at the transmitting end, the amount of covert information carried in the Wi-Fi data packet containing the covert information is increased, thereby improving the throughput of covert communication. This invention also discloses a system for implementing the aforementioned method for Wi-Fi backscatter covert communication utilizing the FCS characteristic.