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60results about How to "Guaranteed real-time availability" patented technology

Method and device for tracing online video target

The invention relates to a method and device for tracing an online video target. The method comprises the following steps that image characteristics of a start frame in an online video are obtained and an initial background model is established; an image of a next frame is obtained; compared with the initial background model and the image of the next frame, so that a comparison result is obtained, and the initial background model is updated according to the comparison result; a foreground image is obtained and a foreground target is extracted; target characteristics are obtained through the online learning method and the foreground target is located so that the position information of the foreground target can be obtained; the position of the foreground target is marked and an image of a next frame after the marking is conducted is output; all the output image of the next frames are combined so that the moving trajectory of the foreground target can be obtained. According to the method for tracing the online video target, a real-time monitored video is processed, the target is traced at the first time, the phenomenon that the target is traced after all original video images are obtained is avoided, the instantaneity and effectiveness of data are guaranteed, and influence on the accuracy rate after multiple targets intersect and are blocked in an existing tracing mode is avoided.
Owner:INST OF INFORMATION ENG CHINESE ACAD OF SCI

Control method and control device of air conditioner and air conditioner

The invention provides a control method and control device of an air conditioner and the air conditioner. The control method of the air conditioner comprises the steps that whether a temperature detecting device of the air conditioner works normally or not is judged; when it is judged that the temperature detecting device does not work normally, the current running parameter of the air conditioner is detected, and a database prestored in the air conditioner is searched for target outdoor temperature corresponding to the current running parameter according to the current running parameter; the real-time running frequency of a compressor of the air conditioner is controlled according to the target outdoor temperature. According to the technical scheme, the situation that due to the fact that the temperature detecting device breaks down, and the outdoor temperature at this moment cannot be acquired, the real-time running frequency of the compressor cannot be effectively adjusted, and the air conditioner cannot work normally can be avoided, and meanwhile the situation that due to the fact that the running frequency of the compressor exceeds the highest compressor running frequency corresponding to the estimated outdoor temperature value, the service life of the air conditioner is shortened is avoided.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1

Traffic security early warning method of traffic control system on highway

The invention relates to a traffic security early warning method of a traffic control system on a highway; vehicle detectors are arranged on the highway; the vehicle detectors of all the vehicles are connected with computers so as to lead the computers to obtain output data of the vehicle detectors periodically and establish a data storage list of the vehicle detectors and a security early warning proposal list. After receiving an information packet, the data in the security early warning proposal list is removed; the data storage list of the vehicle detectors is updated according to the content of the received information packet; all data units in the data storage list of the vehicle detectors are searched one by one; key up stream and downstream vehicle detectors meeting the condition are determined; the time and position of possible occurrence of traffic accidents are calculated according the current collected data of the key stream and downstream vehicle detectors and writing the time and the position are written into the security early warning proposal list; if the security early warning proposal list does not have data in the period, the security early warning is not released; or early warning is released to the highway management department according to the time and the position of possible occurrence of traffic accidents in the security early warning proposal list; therefore, periodic and cycle early warning is executed.
Owner:SOUTHEAST UNIV

New energy vehicle and insulation detection method and system thereof

ActiveCN107015127ARealization of insulation detectionImprove insulation detection speedTesting dielectric strengthVery high resistance measurementsVoltage amplitudeCapacitance
The application discloses a new energy vehicle and an insulation detection method and a system thereof. The method comprises the following steps: inputting an original injection pulse to a new energy vehicle, and collecting a pulse signal currently output by the new energy vehicle to get a real-time recovery pulse; judging whether the voltage amplitude of the real-time recovery pulse is beyond a measurable range, and if the voltage amplitude of the real-time recovery pulse is beyond the measurable range, adjusting the voltage correspondingly to enable the voltage amplitude of the real-time recovery pulse fall into the measurable range; and judging whether the influence of the current voltage of a Y capacitor on the real-time recovery pulse can be neglected, and if the influence of the current voltage of the Y capacitor on the real-time recovery pulse can be neglected, determining a shortest pulse signal time for completing insulation detection, taking the time as the pulse time period of the current injection pulse, inputting an injection pulse corresponding to the pulse time period to the pulse input end, collecting a recovery pulse corresponding to the injection pulse, and calculating the value of insulation resistance according to the injection pulse and the recovery pulse. The insulation detection speed of new energy vehicles can be improved.
Owner:深蓝汽车科技有限公司

Algorithm and key library generation and updating method

The invention provides an algorithm and key library generation and updating method, and belongs to the technique of computer network communication and the field of information security. The method comprises the steps of generating an algorithm and key library through configuration of a safe management system, wherein the algorithm and key library is composed of an algorithm serial number, an algorithm, a key serial number, a key and a strategy identifier; calculating an increment factor according to the algorithm and key library and the initial version of the algorithm and key library, and issuing the increment factor to an encryption/decryption server; and generating the new version of the algorithm and key library by the encryption/decryption server through PCode operation according to the increment factor and the initial version of the algorithm and key library. The initial version of the algorithm and key library provided by the method is encrypted and then is stored in a database, the security is high and the storage quantity is high. According to the method, the increment factor can be generated randomly; the algorithm and key library can be updated flexibly; the algorithm and key library is safe and reliable; even if a key is intercepted by an attacker; data information contents will not be leaked; the cracking difficulty is increased; the security of data information transmission and user privacy is improved; and the method is high in popularization and implementation value.
Owner:咪付(深圳)科技有限公司

Fatigue driving early warning method and system based on threshold system

The invention relates to a fatigue driving early warning method and system based on a threshold system. The method comprises the following steps: collecting video data containing a driver face image and driver heart rate data in real time; carrying out data processing to respectively obtain eye behavior data and a heart rate index; carrying out data analysis, to be specific, according to a presetthreshold system, acquiring an eye behavior evaluation result and a heart rate index evaluation result; combining the eye behavior evaluation result with the heart rate index evaluation result to obtain a corresponding fatigue evaluation result; if the fatigue evaluation result indicates a critical or fatigue state, outputting a corresponding early warning control instruction; and if the fatigue evaluation result indicates a normal state, not outputting the early warning control instruction. Compared with the prior art, the provided method has the following advantages: the fatigue evaluation result can be accurately obtained in real time by collecting the eye behavior data and the heart rate data of the driver and based on the corresponding threshold value system; and the early warning device is combined to realize effective early warning of fatigue driving, so that high driving safety is guaranteed.
Owner:TONGJI UNIV

Method and system for reading article recommendation based on big data

ActiveCN106503050AAccurate readingReading article recommendation is accurateSpecial data processing applicationsData scienceKnowledge level
The invention relates to a method and system for reading article recommendation based on big data. Based on a big data approach and according to reading behavior data of a large number of students, such as states and behavior characteristics during reading, and states and behavior characteristics after the reading, an article selection model is generated; input characteristic data of a student individual is collected; reading materials are recommended for the student individual in a targeted manner based on the article selection model; through correlation with expressions, environmental factors and so forth during student reading, the student's knowledge level and homework completion situations can be further correlated, so that influences of external factors and the student individual's study situations on the student reading can be obtained; and meanwhile, the student individual is also taken as a sample to generate the article selection model, so the more accurate article recommendation can be achieved. The invention also provides a recommendation result detection mechanism, wherein reading results of the student are detected; the detection result is used to reflect recommendation accuracy; cyclic iteration of the article section model can be carried out; and real-time effectiveness of the article recommendation can be ensured.
Owner:耀灵人工智能(浙江)有限公司

High output MR damper

InactiveCN101215860BIncrease the proportion of effective lengthGuaranteed real-time availabilityShock proofingMaster cylinderEffective length
The invention discloses a magneto-rheological damper which has high output, wherein a master cylinder barrel is connected with an upper and a lower end covers of the master cylinder, a piston rod of the master cylinder is inserted in the steel cylinder of the master cylinder through a sealing ring which is arranged on the end cover of the main cylinder, the invention also comprises an auxiliary cylinder inner barrel which is communicated with the master cylinder barrel through an upper and a lower channels, an auxiliary cylinder outer barrel which is sleeved on the auxiliary cylinder inner barrel, a plurality of auxiliary cylinder piston slabs and permanent-magnet slabs which are alternately sleeved on an auxiliary cylinder piston rod, the auxiliary cylinder piston rod is inserted in the auxiliary cylinder inner barrel through an auxiliary cylinder end cover, and a groove is opened on the auxiliary cylinder inner barrel and an excitation coil is winded on the groove. The damper greatlyimproves the proportion of the effective length under the condition that the whole length of the damping channel is determined, basically realizes that the full damping channel is effective, which are larger one time than the traditional shearing valve type magneto-rheological damper with the same size, and simultaneously the damper has great anti-settlement performance and fail-safe performance.
Owner:TIANJIN UNIV

High-voltage display early warning system for static electricity removing device

The invention discloses a high-voltage display early warning system for a static electricity removing device. The system comprises a circuit, wherein the circuit comprises an input protection device,an ion ionization conversion device, an ion output impedance conversion device, an ionization sampling device, an ionization output moisture-resistant and dust-resistant device, an isolation amplification device, a filtering and impedance matching device, an MCU processing device, a high-voltage display device and an early warning display device; the input protection device comprises an input overcurrent EMI protection device, the input protection device is electrically connected with the ion ionization conversion device, the ion ionization conversion device is electrically connected with theion output impedance conversion device, and the ion output impedance conversion device is electrically connected with the ionization sampling device; and the high-voltage display device and the earlywarning display device are both electrically connected with the MCU processing device. The system has the advantages of being good in dust resistance and moisture resistance, high in reliability, goodin safety performance and the like.
Owner:深圳联合净界科技有限公司

Dynamic image processing system and image processing method

ActiveCN110336963AProcessing rate changesProcessing rate changes in real timeTelevision system detailsColor television detailsImaging processingProcessor register
The invention discloses a dynamic image processing system and an image processing method, the dynamic image processing system comprises an image sensor and an FPGA connected with each other, the imagesensor comprises a register module and an image generation module, the image generation module is used for generating an image, and M register modes are stored in the register module; the FPGA comprises a clock module, a configuration module and a receiving and processing module, the receiving and processing module is used for receiving the image sent by the image generation module and processingthe image, M clock modes are stored in the clock module, and M configuration modes are stored in the configuration module, wherein the M register modes, the M clock modes and the M configuration modes are in one-to-one correspondence. The invention provides a dynamic image processing system and an image processing method. The FPGA and the image sensor are dynamically configured, and the transmission frame rate of the image sensor and the processing rate of the FPGA are sequentially changed in an extremely short time under the action of the configuration module in the FPGA, so that the processing capacity of the FPGA for the image sensor is improved.
Owner:SHANGHAI INTEGRATED CIRCUIT RES & DEV CENT +1

Service restoration method and system in Gigabit Passive Optical Network (GPON)

The invention discloses a service restoration method in a Gigabit Passive Optical Network (GPON). The service restoration method includes: S1 judging the variety of Management Information Banks (MIBs), and entering S2 if the MIBs are built locally, or entering S3 if the MIBs are built by an Optical Line Terminal (OLT), or entering S6 if the MIBs are extended Virtual Local Area Network (VLAN) marked operation configuration data or have multicast operational attributes; S2 storing the MIBs to MIB global variables; S3 judging whether to restore the MIBs in the message creating or arrangement format, entering S4 if the MIBs are restored in the message creating format, or entering S5 if the MIBs are restored in the message arrangement format; S4 restoring the MIBs in the message creating format; S5 restoring the MIBs in the message arrangement format; S6 updating the global variables one by one circularly and performing arrangement restoration; S7 updating logic code values of the MIB global variables in a database. The invention further discloses a service restoration system in the GPON. The service restoration method and system improve data restoration accuracy and avoid data loss.
Owner:宋易霄

Real-time communication platform based on processor sub-core and virtual machine

InactiveCN103957233BMeet real-time communication requirementsHigh-precision real-time clock functionSoftware simulation/interpretation/emulationSynchronising arrangementReal-time communicationVirtual machine
The invention relates to the technical field of networks, and discloses a real-time communication platform based on processor nucleus dividing and a virtual machine, for providing a real-time communication capability for a distributed system composed of a Windows operation system, a TCP / IP protocol and an Ethernet. The real-time communication platform comprises a subsystem running on a time correction master node and a subsystem running on a time correction slave node, wherein the former comprises a real-time communication protocol stack master station module, a time synchronization algorithm master station module and an RTX equipment driving module; and the later comprises a VMM module, a real-time protocol stack slave station module and a time synchronization algorithm slave station module which support a real-time virtual communication machine. According to the invention, real-time and determined transmission of data can be finished by use of the real-time communication platform; the data real-time validity among applications is guaranteed, and support is provided for real-time data interaction of the distributed system; and on the basis of real-time communication, a high-precision real-time clock function is provided, through a built-in time correction mechanism, system-level high precision time is provided, the clock consistency of each node in the distributed system is guaranteed, and a consistent time scale is provided for the distributed system.
Owner:HARBIN INST OF TECH

Non-perception user load interactive adjustment system

The invention discloses a non-perception user load interaction adjustment system, which comprises a user load acquisition device, a power grid terminal, an adjustment module and an energy storage device, wherein the user load acquisition device is installed on a line of a user ammeter side, is used for acquiring an electrical load of a user and is connected with the power grid terminal, the powergrid terminal is used for controlling the adjustment module to adjust the power transmitted to the user according to the power load of the user, the adjustment module controls the energy storage device to store energy on the power grid side or discharge electricity on the user side according to the received instruction, the energy storage device comprises a moving device, an energy storage box anda fire extinguishing system, and the energy storage box is installed on the moving device. According to the invention, user electricity load information is acquired through a user load acquisition device, so that a power grid is enabled to master the user electricity situation at the first time, the user load can be further adjusted in advance, and the user loss can be reduced; and through a fault detection device, the fault type is detected accurately, the device is simple, and the detection range is wide.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER CO LTD JIAXING POWER SUPPLY CO
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