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88results about How to "Improve the accuracy of judgment" patented technology

Intelligent glasses with blinking detection function and implementation method thereof

The invention discloses a pair of intelligent glasses with the blinking detection function and an implementation method of the intelligent glasses. The intelligent glasses comprise a glasses frame, a glasses bridge, eyeglasses, nose supports and glasses legs, wherein the nose supports and the glasses legs are respectively provided with a myoelectricity sensor; the glasses bridge is provided with a vibration reminder, and each glasses leg is provided with a myoelectricity signal processing device and a camera. The implementation method includes the following steps that 1, an eye change myoelectricity signal is collected through the myoelectricity sensors; 2, the collected myoelectricity signal is sent to a signal processing circuit for processing, and myoelectricity signal features are obtained; 3, the obtained myoelectricity signal features are compared with preset myoelectricity signal features, one-time blinking is judged if the obtained myoelectricity signal features are coincident with the preset myoelectricity signal features, and next judgment is carried if the obtained myoelectricity signal features are not coincident with the preset myoelectricity signal features; 4, the number of blinking times within a unit time is obtained, and the blinking frequency is obtained; 5, whether a user blinks abnormally or not is judged according to the blinking frequency, and the vibration reminder vibrates for reminding if it is judged that the user blinks abnormally. The intelligent glasses with the blinking detection function and the implementation method of the intelligent glasses can effectively protect the eyes in time.
Owner:GUANGZHOU HKUST FOK YING TUNG RES INST

Refrigeration anti-freezing protection control method and device for air conditioner and air conditioner

The invention provides a refrigeration anti-freezing protection control method and device for an air conditioner and the air conditioner. The control method comprises the following steps that after the air conditioner is started and is subjected to refrigeration operation, the temperature of an inner disk is acquired; whether the condition of entering an anti-freezing protection mode is met or notis judged according to the temperature of the inner disc; and if the condition of entering the anti-freezing protection mode is met, the air conditioner enters the anti-freezing protection mode, andthe operation state of an inner fan, a bypass control valve and a compressor is controlled according to the temperature of the inner disk, the exhaust temperature of the compressor of the air conditioner and a current wind gear of the inner fan of the air conditioner after the air conditioner enters the anti-freezing protection mode so as to prevent an indoor heat exchanger from freezing, whereinthe bypass control valve is arranged between the indoor heat exchanger and an outdoor heat exchanger. According to the refrigeration anti-freezing protection control method for the air conditioner, the evaporation temperature is improved through the adjustment of the air conditioner so as to achieve the defrosting purpose of an inner machine, frequent restart of the compressor is avoided, the pressure reduction and defrosting effects of the air conditioner are achieved.
Owner:NINGBO AUX ELECTRIC

Nuclear fuel subassembly video detection method and detection device

The invention discloses a nuclear fuel subassembly video detection method. The nuclear fuel subassembly video detection method comprises following steps: (1) distance calibration in a photographed area is carried out, and nuclear fuel subassembly video images are collected; (2) the video images are processed, displayed, and stored, two calibration points of distance calibration in the video images are determined, and a measuring area in the video images is acquired; (3) the size of the measuring area is calculated, wherein actual calibration distance Lb between the two calibration points is acquired, image calibration distance Np between the two calibration points in the video images is calculated, image defect size Nc in the measuring area in the video images is calculated, and actual defect size Lc of the measuring area is calculated and stored based on the actual calibration distance Lb, the image calibration distance Np, and the image defect size Nc. The nuclear fuel subassembly video detection method can be used for observing situations of nuclear fuel subassemblies via video images, calculating defect size in the nuclear fuel assemblies, accurately determining that whether deformation of the nuclear fuel subassemblies is caused, and determining deformation degree accurately.
Owner:CHINA NUCLEAR POWER TECH RES INST CO LTD +3

Patrol inspection method for power transmission line of power grid

The invention discloses a patrol inspection method for a power transmission line of a power grid. The patrol inspection method comprises the following steps: a camera takes video images of a power line or a pole in a flying patrol inspection line of an unmanned plane and transmits the video images to onboard communication equipment; the onboard communication equipment communicates with a plurality of ground control consoles to acquire position information of each ground control console, selects one ground control console closest to the unmanned plane at present according to different positions of different ground control consoles, and transmits the video images to the closest ground control console; the closest ground control console receives the video images, and judges damage to the power line and the pole of the power transmission line according to the video images; a background control center communicates with the multiple ground control consoles and is used for displaying the video images and a judgment result of each ground control console. According to the patrol inspection method, the accuracy of judging the damage to the power line and the pole of the power transmission line can be improved, measures can be conveniently taken in time, and safe operation of a power system is guaranteed.
Owner:南彦勃

Judging method of double-bus bus-coupled running mode

The invention discloses a judging method of a bus-coupled or segmented running mode in bus protection, which is characterized by comprising the following steps: (1) at the time of no fault, changing a bus-coupled CT from a non-current state into a current state, and under the condition that the running mode of bus-coupling is judged to be in a separated state, respectively adding the current of the bus-coupling into two buses to calculate difference currents; comparing an obtained calculating result with a calculating result when the running mode of the bus-coupling is judged to be in the separated state, and using the variation trend of the difference current for judging; (2) at the time of a fault, changing the bus-coupled CT from the non-current state into the current state, and under the condition that the running mode of the bus-coupling is judged to be in the separated state, turning off a differential outlet trip for a short period of time; and carrying out reasonable logical judgment through the changes of an SHJ node and a TWJ node of the bus-coupling and the differential condition action. The invention has high judge accuracy and cannot make an erroneous judgment on the mistake current or abnormal conditions of a bus-coupled current collection channel. An effective valve and a sampling value are adopted to carry out a compound judgment so as to make a complementation on judge accuracy and judge speed.
Owner:NANJING GUODIAN NANZI POWER GRID AUTOMATION

Adaptive adjustment method for landing detection threshold value of leveling supporting leg

ActiveCN104965411AImprove the accuracy of judgmentOvercome running current instabilityAdaptive controlSelf adaptiveCollection Time
The invention relates to an adaptive adjustment method for a landing detection threshold value of a leveling supporting leg, and the method comprises the steps: powering on; starting an automatic leveling system; sampling and storing a motor current at a T2 time interval through the controller after the leveling supporting leg extends out for T1, wherein the number of collection times is N; calculating a mean value A of N sampling values of the motor current; taking the sum of the mean value A and a fixed threshold value B as a landing detection threshold value at this moment; repeatedly carrying out steps 2, 3 and 4; enabling a new landing detection threshold value to be compared with the former landing detection threshold value: if the new landing detection threshold value is less than the former landing detection threshold value, the new landing detection threshold value is taken as the current landing detection threshold value, and the next step is carried out; or else, directly switching to the next step; judging whether the supporting leg is landed or not: switching to automatic leveling if the supporting leg is landed, or else returning to step 2. The method is higher in judgment accuracy, avoids false landing of the leveling supporting leg in a process of automatic leveling, is higher in feasibility, is easy to achieve engineering, and is low in implementation cost.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST

Secret-associated network information leakage risk monitoring method

The invention discloses a secret-associated network information leakage risk monitoring method. User operations are recorded in real time in each client, a complete behavior, that a file flows out ofthe client, of a user this time is recovered by taking the event that the file flows out of the client as a starting point, and then whether or not a single behavior has a leakage hazard is analyzed and judged in the client according to security level management provisions in a secret-associated network; and the behaviors of the various clients in the secret-associated network are uploaded to a behavior library of a server, all leakage hazard behaviors related to the behaviors of the clients are tracked and analyzed out, therefore, the secret-associated files are effectively prevented from flowing out of the secret-associated network, and leakage events are avoided. According to the method, the dilemma that current secret-associated network security protection means are powerless for the behaviors that malicious leakers leak secrets by using normal printing and burning ways is solved, and the defects of an existing monitoring method are overcome. The method is wider in monitoring coverage, higher in judgment accuracy rate and convenient for audit management of security protection personnel.
Owner:BEIJING INST OF CONTROL & ELECTRONICS TECH

Wearable fatigue driving monitoring system and method based on forehead electroencephalogram signals

The invention belongs to safe driving detection technology, and relates to wearable fatigue driving monitoring system and method based on forehead electroencephalogram signals. The system is capable of monitoring fatigue state of a driver in real time, high in judgment accuracy, timely in early warning and intervention, comfortable to wear and convenient to carry. The system comprises a forehead electroencephalogram signal acquisition module, a fatigue state identification module and a result feedback and intervention module which are sequentially connected and all arranged on a wearable headband, wherein the forehead electroencephalogram signal acquisition module is used to acquire the forehead electroencephalogram signals of the driver and transmit the acquired electroencephalogram signals to the fatigue state identification module in real time; the fatigue state recognition module is used to analyze the received electroencephalogram signals, carry out data preprocessing and featureextraction, perform fatigue state recognition by adopting an algorithm model obtained by off-line training and send recognition results to the result feedback and intervention module; and the result feedback and intervention module is used to remind and intervene the driver when receiving the fatigue state transmitted by the identification module.
Owner:SOUTH CHINA UNIV OF TECH

Old people nursing system and method

The invention relates to an old people nursing system and method. The old people nursing system comprises a sound positioning module, an image collection module, a processing module and a nursing device, wherein the sound positioning module performs sound collection on an image collection direction to obtain sound information, performs positioning on a sound production point of a user according tothe sound information to generate positioning information and imports the sound information into a sound tumble model for judgment to generate sound judgment information; the image collection moduleperforms image collection on the user in real time to obtain image information, and imports the image information into an image tumble model for judgment to generate image judgment information; the processing module generates tumble information when both the image judgment information and the image judgment information show that the user tumbles; and the nursing device moves according to the tumble information and the positioning information to a positioning area so as to help the user. Compared with the prior art, the old people nursing system can perform image collection and sound positioning, realize accurate judgment on whether the old people tumble or not and improve the judgment accuracy, and can also carry out temporary rescue through the nursing device.
Owner:桂林海威科技股份有限公司

Fault monitoring system for ultralong optical cable and method

The invention discloses a fault monitoring system for an ultralong optical cable and a method and belongs to the technical field of ultralong optical cable detection. The fault monitoring system for the ultralong optical cable disclosed by the invention comprises a first brillouin time domain detection system, a second brillouin time domain detection system, an uplink path optical fiber, a downlink path optical fiber and a plurality of optical repeaters arranged in all the sections of the uplink path optical fiber and the downlink path optical fiber, wherein the first brillouin time domain detection system and the second brillouin time domain detection system are used for emitting detection pulse light to the uplink path optical fiber and the downlink path optical fiber, collecting a backscattered brillouin light signal scattered by the detection pulse in the optical fiber channel and analyzing the monitoring data at each point on the optical fiber channel. According to the fault monitoring system for the ultralong optical cable and the method disclosed by the invention, the fault information at the abnormal point of the optical cable is analyzed by utilizing the original temperature and strain data acquired by the collected back scattered brillouin light signal, so that the high-precision fault positioning and diagnosis can be realized.
Owner:中光华研电子科技有限公司

Transaction risk control method and device

The invention provides a transaction risk control method and device. The transaction risk control method in the invention comprises the steps of: receiving a to-be-judged order of an account, obtaining historical transaction data corresponding to the account, then, after the fact that pre-set transaction attributes need to be statistical according to the historical transaction data is judged, extracting transaction attribute data corresponding to the pre-set transaction attributes in the to-be-judged order and the historical transaction data, generating to-be-judged model characteristics according to the transaction attribute data, inputting the to-be-judged model characteristics into a pre-set risk control model, so that a risk result is obtained, and finally, performing risk control on the to-be-judged order according to the risk result. According to the transaction risk control method and device provided by the invention, because the pre-set transaction attributes are transaction attributes that the difference value among corresponding transaction attribute data in a normal order and a fraud order is greater than a pre-set numerical value in a process of training the pre-set risk control model, the transaction attribute data input into the model can comprehensively reflect the to-be-judged order; and thus, the judgement accuracy of the risk control model is increased.
Owner:EASYLINK PAYMENT CO LTD

Multifunctional smart cat-eye system

The invention discloses a multifunctional smart cat-eye system. A light intensity analysis module is used for comparing a change curve of environmental light intensity data with a preset threshold curve, and a camera is activated when the change curve exceeds the preset threshold curve. A wide-angle optical anti-shake automatic rotation camera is adopted, and an external unit processor is used for controlling the power-on state of an electromagnetic coil (6) in order to rotate a lens. An electromagnetic coil power-on driving module is used for generating a corresponding electromagnetic coil power-on driving signal according to shooting target direction information, so that the aim of automatically rotating the lens according to a shooting target direction is fulfilled. Through adoption of the multifunctional smart cat-eye system, active focusing and capturing can be performed, and a physical rotation angle being 3 degrees is provided. A wide-angle convex lens is adopted, and an actual effective acquisition range is up to 170 degrees, so that a target image can be acquired effectively and completely. In conjunction with judgments on the changing situation of the light intensity and a target distance, the camera is activated when the light intensity drops suddenly and the target distance is relatively small, so that error judgments caused by turn-off of passage lights (the light intensity drops suddenly) and the like are avoided; the judgment accuracy is increased; and the judgment reliability is enhanced.
Owner:CHENGDU BILSUM SCI & TECH DEVCO
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