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46results about How to "Prevent crashes" patented technology

Control system used for variable-frequency-driving scraper conveyor

InactiveCN104291086ASolve the real-time monitoring functionPrevent crashesConveyorsControl devices for conveyorsElectricityTransportation capacity
The invention relates to a control system used for a variable-frequency-driving scraper conveyor, in particular to a scraper conveyor conveying system capable of carrying out variable frequency control by means of position signals of a coal mining machine and real-time coal transportation amount signals of the scraper conveyor. The control system can obtain operation frequency signals of an anti-explosion frequency converter in a designed programmed algorithm according to signals provided by a weighing sensor, a recognition sensor and a lower computer signal collection controller, and a controller of the anti-explosion frequency converter controls operation of an anti-explosion motor through the signals. By means of the control system, the problem that variable-frequency-driving scraper conveyor cannot adjust transportation capacity in real time according to load characteristics is solved, the scraper conveyor can adjust transportation capacity according to comprehensive operation conditions of a work face so that the variable-frequency-driving scraper conveyor can form a closed-loop variable frequency speed governing operation system. The automation degree of the comprehensive mechanized coal mining face can be improved and electricity consumed due to mining can be saved.
Owner:CHINA COAL ZHANGJIAKOU COAL MINING MACHINERY

Method for keeping real-time online of scoring system based on mobile communication network

The invention relates to a method for keeping the real-time online of a scoring system based on mobile communication network. The mobilephone system is additionally provided with an automatic reconnection sub-thread outside a user operation main thread which is in charge of processing user operations; the automatic reconnection sub-thread is in charge of intermittently checking whether the mobilephone is disconnected or not, and if the mobilephone is disconnected, a wireless network is automatically reconnected; outputted data of the user operation main thread and the automatic reconnection sub-thread is respectively connected to the internet by a wireless communication module to realize data exchange with a server; and when the user operation main thread and the automatic reconnection sub-thread simultaneously use the wireless communication module, a thread lock is applied to the thread which firstly uses the wireless communication module, and the other thread waits for the occurrence of the idle state of the wireless communication module. The method can keep the real-time online of the scoring system, and reduces the generation of misoperation, dead halt and locking, thereby increasing the reliability and the accuracy of data transmission and being more convenient to use.
Owner:大连三通科技发展有限公司

Signal processing method and electronic equipment

The invention provides a signal processing method and electronic equipment. The method comprises the steps of detecting whether the electronic equipment enters a target state or not, wherein the target state is standby or sleep or power off; when the electronic equipment enters the target state, producing a target control signal; controlling a power supply module to supply power for a voltage regulation module controller through the target control signal so as to realize power-on reset of the voltage regulation module controller, and controlling the power supply module to stop supplying power for the voltage regulation module controller after the power-on reset of the voltage regulation module controller is completed. According to the signal processing method and the electronic equipment provided by the invention, when the electronic equipment enters the target state, the voltage regulation module controller is initialized based on the target control signal, so that when the electronic equipment enters the normal starting state, the voltage regulation module controller can provide the required voltage for a processor, the occurrence of the phenomenon of system halted is avoided, meanwhile, an alternating current power line has no need to be plugged manually, and the user experience is better.
Owner:LENOVO (BEIJING) CO LTD

Incoming call bullet screen system and method of centralized management of enterprise communication

ActiveCN106412240AQuick way to get contactsThe method of obtaining the address book is accurateCalling susbscriber number recording/indicationTransmissionAddress bookCentralized management
The invention relates to the field of communication, and particularly relates to an incoming call bullet screen system and method of centralized management of enterprise communication. The system comprises a server and a client, wherein the server is used for: when an enterprise authorizes an incoming call bullet screen request, and when the client is in address book data of the enterprise, sending compressed enterprise address book data to the client, and judging whether an incoming call user is in the enterprise address book data; and the client is used for decompressing the enterprise address book data sent by the server, and extracting and displaying the enterprise address book data according to the number of the incoming call user, when the server judges that the incoming call user is in the enterprise address book data. According to the incoming call bullet screen system and method provided by the invention, an address book can be inquired quickly, the use is convenient, the safety is high, the manner of acquiring the address book is simple, the cost is low, and caller ID of the enterprise address book data can be realized.
Owner:AKSU PREFECTURE BRANCH OF CHINA MOBILE GRP XINJIANG +5

Security-sandbox-based USB key cryptographic algorithm detecting system

The invention discloses a security-sandbox-based USB key cryptographic algorithm detecting system. The security-sandbox-based USB key cryptographic algorithm detecting system comprises a USB key equipment hardware layer, a USB key equipment driving layer, a cryptographic algorithm interface layer, a cryptographic algorithm detection engine layer and a user interface layer. The USB key equipment hardware layer is used for supplying hardware support to the USB key equipment driving layer. The USB key equipment driving layer is used for supplying driving support to the cryptographic algorithm interface layer. The cryptographic algorithm interface layer is used for implementing a cryptographic algorithm computing function according to a test case. The cryptographic algorithm detection engine layer is used for generating test case data and analyzing computation results. The user interface layer is used for inputting detection parameters, outputting detection results and providing operation tips for a detector. The security-sandbox-based USB key cryptographic algorithm detecting system has the advantages of high stability, robustness and detection degree and the like, and the problems that a traditional detecting system is fixed in test case, long in consumed period and hard to adapt to scene evidence obtaining and crime scene analysis are solved.
Owner:SHANGHAI JIAO TONG UNIV

Data packet transmission system and method

The invention discloses a data packet transmission system and method. The system comprises a mobile terminal and an external device. The mobile terminal comprises a first application processor, a first modulator-demodulator with a built-in virtual subscriber identity module, a first radio frequency module, and an entity subscriber identity module connected with the first modulator-demodulator. The external device comprises a second application processor, a second modulator-demodulator and a second radio frequency module. When the first application processor receives a data packet obtaining request sent by the second application processor, through the preset interface, the first application processor extracts a corresponding data packet from the virtual or entity subscriber identity module, splits the data packet and adds the same identification information to the split sub-data packets, so the sub-data packets are cached to a temporary buffer of the preset interface and the second application processor extracts the sub-data packets from the buffer and combines the sub-data packets according to the same identification information. According to the system and method, the problem that the terminal is crashed due to an excessively high capacity value in the data packet transmission process is avoided.
Owner:NUBIA TECHNOLOGY CO LTD

Tablet computer

The invention is applicable to the field of driver test devices, in particular to a vehicle-mounted computer used for a motor vehicle driving test system, comprising an upper computer substrate and alower computer processing substrate, a GPS substrate, a video substrate, an audio module, a 3G module, a power supply module and a memory module connected with the upper computer substrate. The host computer substrate is an ARM processor, and the GPS template is used for positioning the position information of the motor vehicle driving test. The video substrate is used for recording the in-vehiclemonitoring information. The audio module is use for realizing man-machine language interaction with drive test personnel; the 3G module is use for connecting wireless network to carry out driving t communication; the lower computer processing board collects the motor vehicle information for the upper computer board through the peripheral connected data acquisition interface. The tablet computer has small power consumption, small volume, is easy to be compatible, easy to install, has motor vehicle installation versatility, and performs board splitting processing on information via a data collection interface and makes judgment on a driving trajectory directly through combination with built-in GPS information.
Owner:湖南冯河大龙山茶业有限公司

A smart cryptographic key cryptographic algorithm detection system based on a security sandbox mechanism

The invention discloses an intelligent cryptographic key cryptographic algorithm detection system based on a security sandbox mechanism, which includes a USB Key device hardware layer, a USB Key device driver layer, a cryptographic algorithm interface layer, a cryptographic algorithm detection engine layer, and a user interface layer. The USB Key device hardware layer is used to provide hardware support for the USB Key device driver layer; the USB Key device driver layer provides driver support for the cryptographic algorithm interface layer; the cryptographic algorithm interface layer is used to complete the cryptographic algorithm calculation function according to the test case; The cryptographic algorithm detection engine layer is used to generate test case data and analyze calculation results; the user interface layer is used to provide the detection party with input detection parameters, output detection results and operation prompts. The invention overcomes the problems of fixed test cases, long consuming period and difficulty in adapting to on-site evidence collection and on-site analysis in traditional detection and testing, and has the advantages of high stability, strong robustness, strong detection strength and the like.
Owner:SHANGHAI JIAOTONG UNIV

High-stability video monitor used for visual angle blind zone of school bus

The invention discloses a high-stability video monitor used for a visual angle blind zone of a school bus. Video cameras are mounted on the right front side and the right back side of the school bus; a video signal is connected to a display in the front of a driving platform through a high-anti-interference video line; a display interface is divided into display pictures of the front and the back of the school bus, so that a driver can clearly observe actual outside conditions of the right front side and the right back side of the bus body, the visual angle blind zone is eliminated, the school bus can be driven excellently and safely, and bus crash and pedestrian accidents are prevented effectively; the monitor is provided with a lightning protection measure, main bus body metal components, a chassis and a fuel tank are electrically and reliably connected through a ground lead, and a grounded discharge cable is mounted, so that the oil and gas spontaneous combustion caused by friction and static electricity is prevented; the monitor adopts an ultrawide-range voltage-stabilized source and an industrial grade electron component, even though voltage of a storage battery is reduced substantially, the stable operation of the video monitor can be also guaranteed, and 'blank screen' during starting and working of the school bus is prevented; and the blind zone monitor further can be used for cars, buses, coaches, trucks, urban slag conveying vehicles and other vehicles, and even serves as a necessary mandatory monitor for safe driving of the school bus and other vehicles.
Owner:陈友余

A signal processing method and electronic device

The invention provides a signal processing method and electronic equipment. The method comprises the steps of detecting whether the electronic equipment enters a target state or not, wherein the target state is standby or sleep or power off; when the electronic equipment enters the target state, producing a target control signal; controlling a power supply module to supply power for a voltage regulation module controller through the target control signal so as to realize power-on reset of the voltage regulation module controller, and controlling the power supply module to stop supplying power for the voltage regulation module controller after the power-on reset of the voltage regulation module controller is completed. According to the signal processing method and the electronic equipment provided by the invention, when the electronic equipment enters the target state, the voltage regulation module controller is initialized based on the target control signal, so that when the electronic equipment enters the normal starting state, the voltage regulation module controller can provide the required voltage for a processor, the occurrence of the phenomenon of system halted is avoided, meanwhile, an alternating current power line has no need to be plugged manually, and the user experience is better.
Owner:LENOVO (BEIJING) LTD
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