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881results about How to "Solve usability" patented technology

Impact ground pressure split source comprehensive early-warning method of coal mine

ActiveCN102628373AEffective monitoring and early warningAddress abuseMining devicesNoise monitoringMonitoring system
The invention discloses an impact ground pressure split source comprehensive early-warning method of a coal mine which is capable of carrying out split source monitoring early warning by aiming at different load sources of induced impact ground pressure from different space ranges. The method comprises the steps of: installing a microquake monitoring system, a rock noise monitoring system and a mining-induced stress on-line monitoring system; respectively setting the warning threshold value of each monitoring system; collecting and analyzing the monitoring result data of each monitoring system; respectively calculating the weight value occupied by each monitoring system according to the relative importance degree of each monitoring system in the impact ground pressure early warning and the danger level corresponding to the monitoring result data of each monitoring system; comprehensively calculating the monitoring result data of each monitoring system and the weight value of the corresponding monitoring system to obtain the comprehensive early-warning result data; and judging whether the comprehensive early-warning result data exceeds the preset impact ground pressure damager level or not, if so, carrying out the warning, and if not, avoiding the warning. The method has the advantages that missing warning and error warning can be avoided, the operability is high, and in addition, labor and material sources can be saved.
Owner:TIANDI SCI & TECH CO LTD

Optimization method for speaking time of barrage in live website

The invention discloses an optimization method for a speaking time of a barrage in a live website. The optimization method comprises the following steps: receiving a barrage request transmitted by a user who successfully logins to a website studio; judging whether the user has a permission to speak according to the barrage request; if so, then judging the identity of the user according to the barrage request; when the identity of the user is an uncommon user, then transmitting an inform that the speaking time is unlimited to the user, and displaying a barrage content corresponding to the barrage request; when the identity of the user is a common user, then judging whether the user is a top user of the website studio according to the barrage request; and if so, then setting a corresponding limited speaking time for the user according to the ranking condition of the user in the website studio. The optimization method for the speaking time of the barrage in the live website provided by the invention can solve the technical problems in an existing barrage live broadcast platform that malicious users occupy a display area of the whole reviews, thus the use and access of normal users are interfered, and the speaking time of users with a higher contribution degree is limited and the degree of participation of the users is affected.
Owner:WUHAN DOUYU NETWORK TECH CO LTD

Smart home and socialized service control system

The invention discloses a smart home and socialized service control system which can achieve automatic control on smart household electrical appliances and is simple and convenient to operate. The system comprises at least one smart central control device and multiple controlled terminals, wherein the controlled terminals include a household communication device and the smart household electrical appliances. The smart central control device further comprises an instruction receiving module for receiving preset instruction setting information, an instruction storage module for storing the instruction setting information received by the instruction receiving module, and a central processing module, wherein each instruction setting information includes trigger conditions for control instructions, controlled terminal identifications receiving the control instructions and instruction contents included by the control instructions, and the central processing module is used for judging whether the trigger conditions of the control instructions included by the instruction setting information stored in the instruction storage module are met or not, and sending the control instructions including the corresponding instruction contents to the corresponding controlled terminals when the trigger conditions are met.
Owner:杨坤华

Household gas cooker wireless monitoring system

The invention discloses a household gas cooker wireless monitoring system which comprises a controller, a wireless transceiver module, a gas cooker ON-state detection unit for real-time detection of the ON state of a gas cooker, an inflammable gas concentration detection unit for real-time detection of the concentration of inflammable gas around the gas cooker, a remote wireless communication terminal for bidirectional communication through the wireless transceiver module and the controller, a clock circuit for automatic statistics of continuous working time of the gas cooker, a hand-operated parameter setting unit, an alarm unit, a solenoid electric valve, and a display unit; the solenoid electric valve is mounted at a gas supply pipe mounted at a gas inlet of the monitored gas cooker, and both the ON/OFF state and the opening degree of the solenoid electric valve are controlled by the controller. The invention is simple in structure, convenient for wiring, simple in operation, high in intelligentization degree, and good in application effect, and can solve the defects of low automation and intelligentization degrees, inconvenient usage and operation, indispensability of personal on-site hand-operated control by users, incapability of realizing remote intelligent monitoring, and the like for current gas cookers.
Owner:XIAN KUOLI MACHANICAL & ELECTRICAL TECH

Advanced pre-splitting method for lump coal mining

The invention discloses an advanced pre-splitting method for lump coal mining. The method with carbon dioxide pre-splitting and hydraulic fracturing combined is adopted, advanced pre-splitting of a working face is carried out on a coal layer needing mining in a multi-segmental mode from near to far in the advancing direction of the coal layer working face. The advanced pre-splitting method for every segment comprises the first step of hole drilling, wherein pre-splitting drill holes are drilled in the current pre-split segment; the second step of carbon dioxide pre-splitting, wherein a carbon dioxide pre-splitting device is installed in each drilled pre-splitting drill hole, the drill holes are sealed, and then pre-splitting is initiated; the third step of installation water injection pipes, wherein each pre-splitting drill hole is internally provided with one high pressure water injection pipe, and the holes are sealed; the fourth step of hydraulic fracturing, wherein water is injected into the pre-splitting drill holes through the high pressure water injection pipes to carry out hydraulic fracturing. According to the method, steps are simple, design is reasonable, the method is easy to implement and good in use effect, the problems that an existing deep hole blasting pre-splitting method is not safe, serious in pollution, high in investment cost, poor in use effect and the like are effectively solved, and the lump coal rate of a fully mechanized coal mining face is improved effectively.
Owner:XIAN UNIV OF SCI & TECH

Modularly integrated satellite dynamics simulation testing system and method

A modular and integrated satellite dynamics simulation test system and method, the system is used for the ground simulation test of the small satellite attitude and orbit control system, the small satellite dynamics simulation test system is based on modular construction, including measurement and control upper computer and real-time lower computer . The measurement and control upper computer is a general-purpose computer, which runs the human-computer interaction software of the simulation system; the real-time lower computer includes the chassis, controller, digital signal acquisition and output card, analog signal acquisition and output card, RS‑422 communication card, CAN communication card, power supply Card, interface box, real-time lower computer except the chassis and interface box, all functional module boards are integrated based on the PXI bus, and the lower computer controller runs dynamics simulation calculation software. In addition to the interface box of the real-time lower computer, other modules are integrated inside the chassis. The upper computer and the lower computer are connected through Ethernet, and communicate based on the TCP/IP protocol, and carry out the interaction of operation instructions, collected data and simulation data. The present invention is applied to the simulation test of the attitude-orbit control system of the small satellite, which improves the integration and scalability of the small-satellite attitude-orbit control simulation test equipment, and the deployment of the equipment is simple and fast.
Owner:AEROSPACE DONGFANGHONG SATELLITE

Movable connector with self-locking device

ActiveCN102354854ASolve the lack of locking deviceAddress reliabilityCoupling device detailsLocking mechanismSelf locking
The invention discloses a movable connector with a self-locking device. The movable connector is characterized in that a plug mounting board is provided with a guide post pair; locking grooves with annular structures are arranged on the guide posts; a socket mounting board arranged on a movable seat is provided with a guide cylinder pair and a locking mechanism; the locking mechanism comprises a pair of symmetrically arranged locking claw; one end of the locking claw is a lock hook; the side wall of the locking mechanism close to the guide cylinder is provided with a window adaptive with the lock hook; when the movable connector is connected and locked, the lock hook passes through the window, and the end part of the lock hook is located in the locking grooves on the guide posts. By usingthe movable connector, the problems that the movable connector is lack of a locking device and the connection reliability is weak, and the connector is not convenient to use because that the connector is locked or unlocked with the aid of tools in the prior art, can be effectively solved. The movable connector provided by the invention is stable in connection and good in reliability, can be self-locked after the connector is plugged, and can be unlocked without any tools, thus, the use is very convenient.
Owner:杭州泰宏新能源技术有限公司

Fuel battery-based emergency power generation vehicle

The invention discloses a fuel battery-based emergency power generation vehicle. The vehicle comprises a vehicle body and is characterized in that: a hydrogen supply module, a fuel battery system, a high-power boost DC/DC converter, a DC/AC inverter and a distribution box are arranged on the vehicle body and electrically connected in turn; a secondary battery pack is connected between the high-power boost DC/DC converter and the DC/AC inverter through a low-power bidirectional DC/DC converter which is connected in parallel with the high-power boost DC/DC converter and the DC/AC inverter; a start-stop switch module, a 24V DC/DC converter and the input end of a 12V DC/DC converter are also connected in parallel between the low-power bidirectional DC/DC converter and the secondary battery pack; the start-stop switch module is connected with a control panel; the 24V DC/DC converter and the output end of the 12V DC/DC converter are connected with a monitoring module respectively; and the monitoring module is also connected with the hydrogen supply module, the fuel battery system, the high-power boost DC/DC converter and the start-stop switch module respectively. The fuel battery-based emergency power generation vehicle has the advantages of simple structure, convenient use and capacity of effectively solving the problems of high noise, easy environmental pollution and the like in the prior art by using hydrogen energy sources.
Owner:KUSN FUERSAI ENERGY

Fractal and composite right/left-handed transmission line-based miniature double-frequency microstrip rat-race coupler

ActiveCN102130662AEasy to processOvercoming the disadvantage of adjustment troubleMultiple-port networksCoupling devicesMiniaturizationEngineering
The invention discloses a fractal and composite right/left-handed transmission line-based miniature double-frequency microstrip rat-race coupler, which consists of four composite right/left-handed transmission line (CRLH TL) braches and four input/output ports, wherein the four CRLH TL branches are sequentially connected end to end, and have a Koch fractal structure respectively; the four input/output ports are connected between every two adjacent branches respectively, and are used for connecting small A type (SMA) joints; the four branches comprise three CRLH TL branches with completely identical circuit parameters and the CRLH TL branch with different circuit parameters, namely, the four branches comprise three transmission line branches which realize +90 degrees and -90 degrees on the frequency bands of fL and fH respectively and the transmission line branch which realizes -90 degrees and -270 degrees on the frequency bands of fL and fH respectively; and each of the four branches is formed by concatenating two CRLH TL units. The fractal and composite right/left-handed transmission line-based miniature double-frequency microstrip rat-race coupler is rationally designed, convenient to realize, good in using effects, highly accuracy and widely applicable, and can effectively solve the problems of complex method, poor using effects, large volume, incapability of really working in a double-frequency mode and the like of the conventional double-frequency rat-race coupler.
Owner:许河秀

Method of intelligently switching hard decoding to soft decoding to play video in mobile terminal

The invention discloses a method of intelligently switching hard decoding to soft decoding to play a video in a mobile terminal. The method comprises the steps of demultiplexing an initial audio and video format to obtain a target audio and video; capturing video description information and video stream data of the target audio and video; filtering proper profile and level attributes according tovideo stream information, and performing soft decoding on improper profile and level attributes by using FFmpeg; searching a proper hard decoder name according to the video stream information, if proper hard decoder name is not found, performing soft decoding by using FFmpeg; creating a hard decoder according to hard decoding name, if creation fails, performing soft decoding by using FFmpeg; decoding audio data by using default FFmpeg; decoding the data stream data by using the hard decoder, and if decoding fails, performing soft decoding by using FFmpeg again; and rendering decoding data to play the target video, if play fails, performing soft decoding by using FFmpeg again. In the prior art, hard decoding cannot be used preferentially to support multiple multimedia video formats and multiple stream media protocols in Android. The method solves the above problem, lowers CPU use ratio in play and slows down power consumption by CPU in play.
Owner:HUNAN HAPPLY SUNSHINE INTERACTIVE ENTERTAINMENT MEDIA CO LTD
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