288results about How to "Reduce the chance of misjudgment" patented technology

The invention provides a method, system and device for testing a wireless local area network (WLAN). In the method, a station (STA) used for test is adopted to scan neighboring access points (AP) and send the identification information of scanned APs to connected access controllers (AC); the ACs send data acquisition commands to corresponding APs according to a test request sent by the STA used for test; according to the data acquisition commands, the APs return network performance state data collected and counted by the APs to the ACs, wherein the state data comprises transmission performance data reflecting that the AP transmits a data massage in the process of operation, abnormal state data and the number of the STAs corresponding to the APs and the transmission performance data of theSTAs; and statistics is carries out on the network state performance data of the APs by the ACs according to the preset statistic policy, so as to obtain the current operation state of the WLAN. In the invention, the current operation state of the WLAN is tested without adding hardware equipment, thus the hardware cost is reduced and the probability of misjudgment is lowered.

The invention provides an earphone device, comprising a casing, a transmitter/receiver, a processor and a plurality of sensors, wherein the processor is electrically connected with the transmitter/receiver and arranged in the casing, the transmitter/receiver is arranged in the casing to receive a trigger signal and communicate with a mobile communicator, the sensors are arranged on the casing and electrically connected with the processor. When the processor is driven by a trigger signal to start the sensors, the processor receives a check signals sent by the sensors, and selectively confirms wear mode accoriding to the check signals and a plurality of preset values relative to the sensors.

The invention discloses a device and a method for optimizing an execution plan and based on practice testing. The device comprises a data base device and an optimizing device based on the practice testing, wherein the data base device and the optimizing device are connected with each other. The data base device is used for obtaining data storage of a relational data base, optimizing sentences of a structured query language (SQL), and executing the execution plan. The optimizing device based on the practice testing is used for receiving a traditional optimized execution plan based on cost and output by the data base device and returning the execution plan tested by practice to the data base device. The device and the method for optimizing the execution plan and based on the practice testing are an improved measure of an optimizing method based on cost, can effectively reduce judge error rate of channel bus output (CBO) in complex and versatile data environments without increasing system expenditure and enable the generated execution plan to be the optimal execution plan in reality, thereby improving stability of the system.

The invention discloses a device for preventing myopia and cervical spondylosis, which comprises a data acquisition module (1), a main control module (2), a warning module (3) and a power module (4), wherein the data acquisition module (1) is connected with the main control module (2); the main control module (2) is connected with the warning module (3); the power module (4) is used for supplying power and managing charging for the device; each module receives and sends data or instructions through a data bus; and the main control module (2) determines the using state of a user by processing the data acquired by the acquisition module and the dependence and training data of a posture and motion decision tree algorithm. The device determines whether to give a warning or not by performing logic operation on different configurable standard data and the acquired data in different using states. The device not only can judge the using state of the user, but also adjusts the standard parameter for warning according to different using state of the user, so that the false warning rate is low; and in addition, the device can further realize different functions according to the choice of the user so as to be wide in application range.

The invention discloses a recognizing and verifying method and system for an anagram. The method has the following beneficial effects: an anagram library can be expanded through the pronunciation and character pattern expansion, and thus the quantity of the anagrams in the anagram library can be increased, the quality can be improved, and the misjudgement probability can be decreased; a training sample is used for training context probability, thus the misjudgement probability in semantic verification of the anagram can be further decreased, and moreover, the accuracy can be improved; the training sample is updated based on the verification result, so that the automatic updating performance of algorithm can be improved, and as a result, a concept base for the semantic verification can be expanded; as the accumulation of the verification results, the misjudgement probability continuously decreases. The recognizing and verifying system comprises an acquiring unit, an anagrammatizing training unit, a recognizing unit and a semantic verification unit. The system has the same beneficial effects as the method.

The invention provides a detection method for determining alteration of shooting background and an image processing device; wherein the method comprises the following steps: determining a background identification area in a background reference image; identifying an imaging area of a feature in source background in the background reference image by the background identification area; using the current frame image to obtain a contrast image of the background reference image; contrasting an image in the background identification area in the background reference image with the image in corresponding area in the contrast image to obtain a contrast result; according to the contrast result, detecting whether the shooting background in the current frame image conforms to the source background, if yes, determining the shooting background unaltered; otherwise, determining the shooting background altered. The technical proposal provided by the embodiment of the invention can effectively reduce the false detection probability on whether the shooting background is alters or not.

The present invention relates to a power system transient voltage stability evaluation method based on voltage time sequence trajectory, belonging to the field of power system stability analysis and evaluation. The method comprises: first simulating various faults of the power system in each operation mode to obtain a simulation sample set; extracting the voltage sub-time-sequence with the highest correlation with the category of the power system state from the voltage sequences of all the simulation samples as the standard voltage time sequence trajectory; calculating the distances from the trajectory to all simulated samples to form a standard distance dataset; using the standard voltage time sequence trajectory and the standard distance data set as input, and the state of the power system as output; training to obtain an SVM classification model; when the power system encounters a temporary state fault, obtaining the voltage time sequence in real time, calculating the distance between the standard voltage time sequence trajectory to the voltage time sequence; and inputting the support vector machine model and outputting the real-time power system state evaluation result by the model. The method of the invention can reliably monitor and evaluate the transient voltage stability of the power system on-line.

The invention discloses an anti surge control method and device. An outlet pressure value, an inlet pressure value and an inlet flow rate are obtained; a coordinate of a working point is calculated according to the outlet pressure value, the inlet pressure value and the inlet flow rate; when a deviation of the working point coordinate occurs, and a differential of a working point offset to time is calculated ; according to the differential of a working point offset to time, the deviation of an anti surge control line is calculated and the position of the anti surge control line is revised; according to the revised surge control line, whether the working point is in a surge area is judged; when the working point is in the surge area, an anti surge control signal is output for conducting an anti surge control. The embodiment of the invention references a differential response processing method, successfully solves the problem of the working point disturbance and reduces the probability and risk of misjudgment.

The embodiment of the invention discloses a data transmission control method and a data transmission control device, which is used for improving reliability of a blacklist filtration technology and lowering misjudgment rate. The method of the embodiment of the invention comprises the following steps that: a data message carrying an address of a host sent by the host is received; whether the host meets a filtering condition or not is judged according to the data message; if so, whether the address of the host is in a credible address list or not is judged; if so, the data message is responded and corresponding operation is carried out. The embodiment of the invention also provides the data transmission control device. The embodiment of the invention can effectively improve the reliability of the blacklist filtration technology and lower the misjudgment rate.

The invention discloses a noise estimating method, a key optimizing method and a system thereof. The method includes the following steps: an initial noise average value of a sound spectrogram is estimated, and an initial elimination threshold value is determined according to the noise average value; wild value elimination processing is carried out for at least one time, so as to eliminate sound spectrogram data larger than the elimination threshold value; after the wild value elimination processing every time, the noise average value is estimated again, so as to determine the elimination threshold value of the next wild value elimination processing; finally, the noise average value estimated the last time is set as a noise estimating result. In the invention, at least one wild value elimination processing is added in the conventional noise estimation so as to eliminate abnormal values with larger amplitude in an original noise curve, and the noise average value is estimated again after the wild value elimination processing so as to carry out the subsequent calculating process.

The invention discloses a method for inquiring and updating a Bloom filter based on a tree structure. The method comprises the following steps of: storing a data set which is in a certain scale or contains corresponding characteristic data in a tree Bloom filter; reading in the data set to be inquired or updated; inquiring and updating elements of the Bloom filter based on the tree structure; and outputting an inquiry and updating result. By applying the method disclosed by the invention, misjudgement probability can be greatly reduced, the time of an inquiry and updating operation is reduced, the expandability of the Bloom filter is enhanced, guarantee is provided for network data storage and inquiry by members of the data set, and the method can be applied to data member detection in the data set and can be widely applied to a database, a network and a distributed system. The method for inquiring and updating the Bloom filter based on the tree structure is characterized by comprising the following steps of: 1) storing a data set which is in a certain scale or contains corresponding characteristic data in a tree Bloom filter; 2) reading in the data set to be inquired or updated; 3) inquiring and updating elements of the Bloom filter based on the tree structure; and 4) outputting an inquiry and updating result. The method for inquiring and updating the Bloom filter based on the tree structure according to the claim 1 is characterized in that the step for inquiring and updating the Bloom filter based on the tree structure comprises: firstly: performing Hash calculation to the data members by using a Hash function; secondly: performing model operation to the obtained Hash value, obtaining a '1' position of a bit of a first layer position '1' at the next layer leaf node; thirdly: counting the bit which is configured as '1' before the bit already configured as '1', obtaining an insertion position of the leaf node at the next leaf node; fourthly: inquiring or updating the leaf node at the corresponding position according to the obtained index data at the Bloom filter at a middle layer; and fifthly: inquiring or updating the bit number configured as '1' before the corresponding bit of the uplink layer in the last layer, and finding out the corresponding counter in the last layer.

The invention discloses an illumination system for optical detection, detection system and method using the same. A first illuminating light ray is projected right in the direction to a detection area and two channels of a second light ray are projected biasedly to the detection area. Two channels of a third illuminating light ray illuminate the detection zone at maximum large projection angles. The wavelength of the third illuminating light ray is shorter than those of the first light ray and the second illuminating light ray. A colored linear scanning camera outputs optical image data of different light spectra so that defect can be detected. The mixed images are then cut off by light spectra color frequency to identify oxidation of a circuit board and dust on the circuit board. The third illuminating light ray is further provided with a strengthened ability to identify defects in an optical image, therefore, reducing the error rate of the detection system when it performs detection work.

The invention discloses a vehicle-mounted live-action navigation system. The vehicle-mounted live-action navigation system comprises a live-action image acquisition module, an image analysis processing module, a GPS (Global Positioning System) module, 2D (Two Dimensional) map navigation software, a navigation data service module, an image superposing processing module and a display module, wherein the 2D map navigation software is used for acquiring position data through the GPS module and transmitting generated navigation data to the navigation data service module; the live-action image acquisition module is connected with the image analysis processing module; the image superposing processing module is used for carrying out image superposing processing on image data of the image analysis processing module and the navigation data of the navigation data service module and transmitting processed data to the display module for carrying out live-action navigation display. The invention further provides a vehicle-mounted live-action navigation method. The vehicle-mounted live-action navigation system and method, disclosed by the invention, provide navigation information based on a live-action image for users and are convenient for users to use; the driving safety is facilitated and the erroneous judgment probability of the users is reduced; the vehicle-mounted live-action navigation system and method have popularization and application value.

The invention provides an anti-peeping method and device for a display interface, a storage medium and a terminal device. The method includes the steps of in response to startup of an application in the display interface, turning on a front-mounted camera to obtain an image; obtaining positions of the human face pupils in a preset visual area according to the obtained image; according to the obtained positions of the human face pupils, determining whether or not a user corresponding to the human face pupils is a user who peeps a screen; when the user corresponding to the human face pupils is the user who peeps the screen, determining whether or not changes of the human face corresponding to the human face pupils meet peeping standards; if yes, determining that there is a peeping behavior;if not, determining that there is no peeping behaviors; when it is determined that there is a peeping behavior, controlling the application to be displayed in an anti-peeping mode. By adopting the anti-peeping method and device for the display interface, the storage medium and the terminal device, the accuracy of discriminating the peeping behaviors in a densely populated area is effectively improved, and the probability of misjudgment is decreased.

The invention discloses an airport arrival and departure passenger identification and passenger situation analysis method based on mobile phone signaling data. By means of mobile phone signaling data,detailed identification of travel identities of users is achieved through four steps of airport area mobile phone user list extraction, airplane travel related user list extraction, airplane travel related user whole-city range mobile phone signaling data reading and preprocessing and airport arrival and departure passenger identification, and then airport arrival and departure passenger quantityis analyzed, and passenger flow attribute characteristics are mined. The identification process only needs to know the regional positions of the first mobile phone signaling data and the last mobilephone signaling data of the current day of the user; t the travel identity of the user is accurately judged by the aid of the middle regional position, passenger flow volume, passenger flow attributes, sources, directions and other passenger condition characteristics of airport arrival and departure passengers are further analyzed, and auxiliary decisions are provided for passenger flow managementand transport organization of large-scale comprehensive hubs such as airports. The method is low in misjudgment probability and is less influenced by abnormal data interference.

The invention relates to a wire clamp special for testing of a transformer. The wire clamp comprises two wire clamp bodies, a bolt penetrating through the two wire clamp bodies and fixing the two wire clamp bodies, and a spring. Installation grooves are respectively formed in the inner sides of the clamping head ends of the two wire clamp bodies. Clamping piece fixing holes and wiring piece fixing holes are formed in the lower portions of the installation grooves. Transformer direct current resistance testing specialized clamping pieces of the same structure or transformer breaker loop resistance testing specialized clamping pieces of the same structure are respectively assembled in the two installation grooves and are fixed in the installation grooves through the clamping piece fixing holes and the wiring piece fixing holes. The wiring piece fixing holes fix wiring pieces at the same time, and wiring screws on the wiring pieces are fixedly connected with wires. By adopting a split structure, the wire clamp is simple in structure and convenient to install, and can improve the accuracy of test data, shorten the test time and lower the misjudgment probability after being used.

The invention provides an automatic glass descending device used when an automobile falls into water or wades in deep water and a control method thereof, and belongs to the technical field of automobile safety. The device and the method mainly solve the emergency escape problem of a driver and passengers when the automobile falls into water or wades in deep water. The device mainly comprises a detection module, a control module, an execution module, a warning signal lamp and a standby power supply, wherein the detection module is composed of a pressure sensor, the pressure sensor of the detection module detects a water pressure signal and transmits the signal to the control module, the control module carries out data conversion and comparison and transmits the signal to the warning signal lamp and the execution module through two circuits, and the standby power supply can provide power in a short time when a storage battery of the automobile fails. The automatic glass descending device can provide an emergency escape channel for the driver and the passengers in the automobile falling into the water or wading in the deep water in the first time, avoid the dangers that a glass lifter fails due to faults of the storage battery and circuits when the automobile falls into water, water pressure is too large and an automobile door cannot be opened, and improve safety of the automobile.

The application discloses a method and a device for risk control. First, reference accounts satisfying preset conditions and non-reference accounts not satisfying the preset conditions are determinedfrom all accounts; then, the variable values of the reference accounts and the non-reference accounts in a preset feature dimension are determined; and next, the risk control parameters of each non-reference account are determined through a plurality of clusters obtained by clustering the variable values of the reference accounts according to the distance between the variable value of the non-reference account and the center of each cluster, in order to carry out risk control. The method of the application reduces the probability of missing judgment while reducing misjudgment. By using the clusters obtained by clustering, the features corresponding to each reference account can be reflected accurately. Therefore, the risk to each non-reference account can be controlled according to the distance between each non-reference account and the center of each cluster. Moreover, the preset feature dimension can cover a large amount of behavior. Resources are fully utilized. The efficiency of risk control is improved. The cost of risk control is reduced.

The invention discloses a relevant sinusoidal signal detection method and device. According to the relevant sinusoidal signal detection method, a first sinusoidal signal is sampled, a normal zero crossing point of the first sinusoidal signal is confirmed, and a first preset interval moment delayed after the normal zero crossing point is determined as an extreme value moment of the first sinusoidal signal, thereby confirming the instantaneous value of a second sinusoidal signal corresponding to the extreme value moment. When an interference signal is generated, a wave peak or a wave trough can be definitely generated in a corresponding position, that is, the differential coefficient in the corresponding position can meet the judgment condition of a differential detection method; as the wave peak and the wave trough are not directly detected in the relevant sinusoidal signal detection method, the influence of fake wave peaks and fake wave troughs caused by the interference signal to the detection accuracy can be effectively avoided, and the requirement on the smoothness of the signal is low. Therefore, by adopting the relevant sinusoidal signal detection method, the rate that the peak waves and the peak troughs are wrongly judged is greatly reduced, the anti-interference property is improved, the detection accuracy is improved, the requirement on the smoothness of the signal is reduced, good universality is achieved, and the problems of the prior art are solved.

The invention relates to a word line leakage detecting method, a system and a storage media of a Nor type flash memory device, and particularly discloses a self detection method, a detection system and the storage media capable of being read by a computer of the leakage in a word line. A high voltage supply unit and a voltage detector connected with the word line originally existing in the flash device can be utilized, the high voltage supply unit applies test signals to the selected word line, the voltage detector detects the voltage signals of the word line, and when the voltage signals are inferior to the test signals, the word line is in electric leakage by comparing the test signals with the voltage signals.

The invention provides an NVM bad block recognition processing and error correcting method based on a heterogeneous mixing memory and further provides an NVM bad block recognition processing and error correcting method based on the heterogeneous mixing memory.The method comprises the steps that in a self-checking process, data in each address unit in a block of an NVM is detected, if data obtained after read data is calculated is different from data obtained after reading data obtained through operation and written into the address unit, it is judged that the block is a bad block; if data obtained after read data is calculated is different from data obtained after reading data obtained through operation and written into the address unit, it is judged that the block is a good block.The read data is calculated and then written into the same address, the bad block in the NVM can be recognized, the misjudgment probability is reduced, and reliability and integrity of data in the NVM memory are guaranteed.

The invention discloses a laser coding method for automatically positioning products, comprising a workbench, on which a conveyor belt and a control assembly are arranged, a bracket platform is arranged above the conveyor belt, and the lower bottom surface of the bracket platform is sequentially arranged along the conveying direction of the conveyor belt for positioning. component, laser generator and detection component, a display component is arranged above the support platform, and the positioning component, laser generator, detection component, display component and conveyor belt are respectively connected with the control component. The invention solves the problem in the prior art that the position of the workpiece cannot be positioned during coding and marking, resulting in missing or crooked marking, and provides a laser marking method for automatically positioning products. When it is applied, the laser head is first positioned by visual positioning. Accurately positioned at the marked place, only one person is required to complete the work of marking and testing. You can mark or code on the device. After marking or coding is completed, the device will immediately use visual inspection to verify the mark. or code is correct.