130results about How to "High accuracy of test results" patented technology

The invention discloses a breast tissue segmentation method comprising the steps that multiple section images including breast tissues are inputted, and the skin line of the breasts and the lung tissues are determined according to grayscale information of the pixel points in the section images; the detection range of the section images along an axial direction and the left and right feature points of the breast tissues are determined according to the position of the skin line or the lung tissues, wherein the detection range includes the initial layer, intermediate layer and stop layer section times; the chest wall line of the intermediate layer section is determined, and the chest wall line of the section images apart from the intermediate layer section in the detection range is determined according to the continuity of the chest wall line of the intermediate layer section and the chest wall line of the adjacent layer sections; and the segmentation result of the breast tissues is acquired according to the skin line, the chest wall line, the left feature point and the right feature point in the detection range. According to the technical scheme, the position of the chest wall line of the breast tissues can be accurately and rapidly determined so as to realize automatic segmentation of the breast tissues.

The embodiment of the invention discloses a detection method and device of a DNS tunnel. The method includes: obtaining domain name system (DNS) request data, wherein fields of each piece of DNS request data include request time, client IP, a domain name, a primary domain name and a request packet size; using a white-list, a black-list, a gray-list and threat intelligence information of the primary domain name in the DNS request data to detect the DNS request data, generating black-list alarming information when the DNS request data are determined as of the DNS tunnel, and generating gray-listalarming information when the DNS request data are determined as of a suspected DNS tunnel; and receiving a confirmation instruction of a user on whether the generated gray-list alarming informationis of misjudgment, and adding the generated gray-list alarming information to the black-list if according to the confirmation instruction, it is determined that the generated gray-list alarming information is not of misjudgment. The embodiment of the invention can realize detection of the DNS tunnel, detection speed is high, and detection result accuracy is high.

The invention discloses a diet intelligent recommending and matching system based on physique and big data, and a method thereof. The system comprises the components of an image acquisition module, aphysique image preprocessing module, a physique characteristic extracting module, a central processing module, a characteristic detecting module, a physique migration learning module, a network training module, a manual input module, a camera, a food image preprocessing module , a food characteristic extracting module, a food migration learning module, a wireless transmission module, a display terminal, a storage module, a timely updating unit and a system evaluation module. The system can regularly perform multiple times of detection on human body image information which is uploaded by a user, and furthermore generates a physique development trend by a traditional Chinese medicine intelligent detecting system according to a detecting result and performs early-warning. Furthermore the eaten food of the user is acquired in real time through the image acquisition module. After automatic matching between the acquired food image and the user physique, a guiding suggestion is generated foraiming at a fact whether the food affects the population with different physiques and the eating amount.

The invention discloses a pulse cycle life test method of a nickel-metal hydride battery for an electric automobile. The method includes the steps: 1 discharging residues in the battery; 2 testing capacity of the battery; 3 testing internal direct-current resistance; 4 discharging residues in the battery; 5 circularly charging; 6 circularly discharging; 7 circularly charging; 8 circularly discharging; 9 circulating the seventh step and the eighth step for 100 times; 10 discharging residues in the battery; 11 testing internal direct-current resistance; 12 discharging residues in the battery; 13 testing capacity of the battery; 14 testing internal direct-current resistance; 15 discharging residues in the battery to finish test. The pulse circulation life test method is reasonable in design, strict in conception, high in test result accuracy and suitable for popularization and application and effectively solves the problems that an existing electric automobile battery pulse circulation life test method is low in test result accuracy and efficiency and high in cost investment, cannot improve water electrolysis in electrolyte solution and the like.

Aspects of the disclosure relate to augmented reality devices for generating a composite scene including a real-world test environment and an augmented reality overlay visually representing a test area of the environment. Some devices can include wearable displays for displaying an overlay to a user, and other devices can include projectors for illuminating the test environment with the overlay.

The invention belongs to the analytical instrument, and discloses a high-pressure constant flow pump for a single lobe of a liquid phase chromatograph. Output pressure of the prior high-pressure constant flow pump of the liquid phase chromatograph fluctuates to influence the test result of samples. A step motor (1) of the invention drives a worm (6) and a worm wheel (7) to rotate through a synchronous belt (3); an end face of a worm-wheel shaft (8) is provided with a lobe (9); a curve line on the lobe (9) pushes two bilaterally symmetrical plunger rods (10) to move back and forth; a spring (13) is arranged in a pump body (12), and elasticity of the spring (13) pushes the plunger rods (10) to move back; and a liquid inlet and a liquid outlet of the pump body (12) are provided with an inlet check valve (11) and an outlet check valve (14). By adopting a single lobe to drive two plungers, the invention solves long-standing technical problem of output flux and pressure fluctuation in the high-pressure constant flow pump of the liquid phase chromatograph. The invention has advantages of stable pressure and small fluctuation of output liquid, small volume, easy assembly and simple operation.

The invention provides a method and a system of cognitive radio spectrum sensing based on a Gabor algorithm. The method of the cognitive radio spectrum sensing based on the Gabor algorithm comprises the following steps: step 101: sensing the conduction of sampling processing of detected continuous signals received by a user through the Gabor algorithm to obtain a discrete-time signal; step 102: calculating the Gabor coefficient of the discrete-time signal and obtaining the module value of the Gabor coefficient to be used as the energy of the detected signal; step 103: if the module value of the obtained Gabor coefficient is larger than a pre-set judging threshold, judging that a main user exists in the detected frequency range; if the module value of the obtained Gabor coefficient is smaller than the pre-set judging threshold, judging that no main user exists in the detected frequency range. When the Shannon principle is adopted for sampling, the Gabor algorithm is combined, and the sampling adopting the Gabor algorithm needs to meet that TOmega<=2pi or MN<=N1, T is a time sampling period and Omega is a frequency sampling period. On the basis of traditional energy detection, the Gabor algorithm is imported for improving the detection accuracy of the main user, , the method of the cognitive radio spectrum sensing based on the Gabor algorithm can effectively improve the accuracy of a detection result especially in low signal to noise ratio.

The invention discloses a video area removal tampering detection method and device. According to the method, the GIN network model of the seven-layer structure is constructed, the GIN network model istrained and optimized, the video data set to be detected is input into the optimized GIN network model to be detected, the detection result is high in accuracy and applicability, and the technical problems that an existing video tamper detection method is not high in detection accuracy and low in applicability are solved.

The invention discloses a test bench for a microwave power divider. The test bench comprises a cavity, a circuit board, a positioning plate and a tabletting spring perch. The upper end surface of the cavity is provided with an opening and is fixedly connected with a base. Inside the cavity, a circuit board and a positioning plate are successively and fixedly arranged from bottom to top. The circuit board is connected with a monitoring device via a lead. The positioning plate is provided with a groove for placing a microwave power divider. The tabletting spring perch is fixedly connected with the cavity and is provided with an elastically restorable and expandable pressing rod. The pressing rod is right facing the groove. According to the technical scheme of the invention, the microwave power divider is placed in the groove of the positioning plate, and a to-be-measured device is pressed by the elastically restorable and expandable pressing rod. The bottom pin of the device is in contact with the circuit board. Under the buffering effect of the elastically restorable and expandable pressing rod, the device is prevented from being damaged. The test bench for the microwave power divider is safe and reliable in testing, and ensures the good contact of a microwave radio-frequency transformer with a soldering pad on the test bench. Meanwhile, the power attenuation is reduced. Moreover, the test bench is simple in structure, convenient to install and lossless to devices, thus being applicable to the testing operation on products in mass production.

The invention provides a yarn strength measurement method. The measurement method comprises steps as follows: yarn is put on a pulling device and pulled with the pulling device, and the maximum tension of the pulled yarn is detected with a stress sensor; a yarn material is mounted on the pulling device, water is sprayed to the surface of the yarn material, the yarn is pulled with the pulling device after the yarn is wetted, and the maximum tension of the wetted yarn is detected with the stress sensor; the yarn is sent to a baking oven to be heated and then mounted on the pulling device, and the strength of the heated yarn is detected with the stress sensor. The strength of normal yarn, wetted yarn and high-temperature yarn is sequentially tested, the yarn in different work environment is detected, the accuracy of the detection result of the yarn is improved, and the detection efficiency is improved.

The invention discloses a method for waking up a mobile phone by using the proximity sensing mode when the mobile phone is charged, comprising the following steps: arranging at least one proximity sensor on the mobile phone; setting the threshold of the proximity signal strength which can generate the interrupt signal; collecting the non-contact type operation of the user in real time by the proximity sensor; comparing the collected proximity signal strength with the threshold when the proximity signal is collected, and sending interrupt commands to a central processor by the proximity sensor if the proximity signal strength is more than or equal to the threshold; and making the central processor send a control command to control a wake-up module to wake up the mobile phone. The traditional key-pressing type wake-up mode is replaced, and the damage to the press key due to long-time pressing can be avoided effectively. The non-contact type mode is adopted in the whole process, and the sensor is safe and convenient to use and not easy to be worn so that the service life of the sensor is guaranteed. The method has the characteristics of high detection result accuracy and high reliability and can ensure that the use experience of the user can be improved effectively.

The invention discloses an automatic testing method and device, electronic equipment and a readable storage medium. The method comprises the following steps: analyzing a dependency relationship of a target project, and establishing a flow access path tree of the target project; obtaining an interface access sequence of the target project according to the traffic access path tree; obtaining a flowratio of each interface access sequence according to the access flow of the target project; and according to a preset test flow value, selecting a target access sequence from the interface access sequences, and carrying out an automatic regression test on the target access sequence. Therefore, the technical problems that an existing automatic testing method is poor in testing result accuracy, highin labor cost and the like are solved. The beneficial effects of improving the accuracy of the test result and reducing the labor cost are achieved.

The invention provides a creatinine detection kit and a use method thereof. The kit comprises a reagent R1 and a reagent R2, wherein the reagent R1 comprises creatinase, sarcosine oxidase, peroxidase,ascorbic acid oxidase, 2, 4, 6-tribromo-3-hydroxybenzoic acid and 3, 5-dichloro-2-hydroxybenzenesulfonic acid; and the reagent R2 comprises creatinase, peroxidase, potassium ferrocyanide and 4-aminoantipyrine. The creatinine detection kit provided by the invention can resist interference of etamsylate with the concentration of 300mg/L (the highest blood concentration) or below in a to-be-detectedsample, has a wider linear range (0-6000 millimoles/L), is applicable to detection of samples with high creatinine content and can correctly evaluate renal functions of surgical patients.

The invention provides a gravitational acceleration filtering method based on stationary point detection. The method comprises steps of fixing a six-axis sensor on a to-be-detected target; acquiring and inputting tri-axial acceleration data and tri-axial angular speed data; carrying out error processing; based on moving stationary points, segmenting movement; projecting beginning and end stationary points of data of each section of the movement, and filtering gravitational acceleration of each section of the movement so as to obtain two sections of different tri-axial linear acceleration; according to distribution characteristics of accuracy of the two sections of different linear acceleration, distributing weight and carrying out fitting so as to obtain the final tri-axial linear acceleration; and outputting the tri-axial linear acceleration after the filtering of the gravitational acceleration. According to the invention, an acceleration detection method based on the gravitational acceleration filtering method based on stationary point detection is adopted. The precision of detection results is high and the method and the device are highly applicable and can be widely applied inresearch of object movement by use of an acceleration sensor.

Provided is a method for measuring the pressure of a constant-volume quick inflation/deflation air cavity. In the constant-volume quick inflation/deflation process, gas mass flow and pressure data of an entrance of a container are detected in real time, the obtained data through detection is subjected to the averaging processing, and the pressure value of the inside of the container is obtained in the mode that the obtained data is substituted to the calculation formula of the pressure in the container in the inflation or deflation process. The method is good in realizability, and can be applied to occasions where pressure in the container needs to be accurately measured online in the constant-volume quick inflation/deflation process.

The invention provides an intersection point expose two serial-connected adjacent crossing rotary axes coplane degree detection device. The device comprises a detection component and a displacement sensor, wherein the detection component comprises a connecting piece which is arranged on the lower surface of a rear rotary shaft component rotator of a detected object, a three-dimensional movement fine tuning mechanism, a bent plate and a standard sphere; and the displacement sensor comprises an X-directional displacement sensor, a Z-directional displacement sensor and a Y-directional displacement sensor, the three displacement sensors are arranged along normal directions of X, Z and Y coordinate directions of the standard sphere respectively, and probes of the three displacement sensors arealigned to the body of the standard sphere along the normal line of the spherical surface. The invention also discloses an intersection point expose two serial-connected adjacent crossing rotary axescoplane degree detection method, which realizes coplane degree detection of two serial-connected adjacent crossing rotary axes of a detected component with an included angle theta of an arbitrary value by utilizing the detection device, and the accuracy of the detection result is remarkably improved.

The invention relates to a water pressure resistance test device and test method for seam sealing glue. The device comprises a test table, a concrete sample layer, a fixed frame, a transparent pressure barrel, a water injection pressurizing device, and a counting cup, wherein the bottom of the transparent pressure barrel is provided with an exhaust valve communicated with the inner cavity of the transparent pressure barrel, the water injection pressurizing device comprises a booster pump and a water convey pipe, a water injection valve is installed in the center of the bottom of the transparent pressure barrel, the concrete sample layer comprises two rectangular concrete plates and a sealing glue layer between the two concrete plates, the fixed frame comprises a bottom plate, the center ofthe bottom plate is provided with a rectangular through hole, two ends of the through hole are separately provided with a limit block, two sides of the bottom plate are provided with a block plate separately, and the center of the surface of the test table is provided with an observation port. The water pressure resistance test device for the seam sealing glue has advantages of simple structure,repeated use for tests, low cost, high operability, and high accuracy of test results.

The invention discloses an obstacle detection method, apparatus and device, and a computer readable storage medium. The method comprises the steps of obtaining first feature information of a 2D detection box and second feature information of a point cloud cluster in the 2D detection box; obtaining a target point cloud cluster corresponding to the 2D detection box according to the first feature information and the second feature information; and according to the first position information of the target point cloud cluster, obtaining second position information of an obstacle in the 2D detectionframe. The technical problem of low accuracy of an obstacle detection result is solved.

The invention belongs to the technical field of application of artificial intelligence to grain storage, and particularly relates to a granary grain storage quantity parallel detection method, which comprises the following steps of: firstly, generating virtual data samples according to real data samples by adopting a mixed data generation method, and then inputting the virtual data samples into parallel detection models, wherein a primary layer adopts decomposition condition fuzzy reasoning to perform feature extraction, realizing virtual and real data feature interaction through a feature sharing layer, realizing multi-layer feature extraction according to target function design, and then outputting the grain quantity through a regression layer; in order to further improve the generalization ability, adopting an interval type-2 fuzzy integrated virtual-real interaction parallel detection model, and finally outputting an interval type-2 fuzzy reasoning system driven by real data. The granary grain storage quantity parallel detection method is high in detection result precision and high in model generalization capability, and has important technical application and popularization values.

The invention discloses a wheel-rail force strain gage fast and precise positioning device. The wheel-rail force strain gage fast and precise positioning device is used for accurately determining the arrangement position of a strain gage on a wheel-rail in a wheel-rail research experiment. The positioning device is composed of two calibration plates which are in mirror symmetry and include a left calibration plate 10 and a right calibration plate 20; the calibration plates have the same contour structure as the rail web and rail bottom of a tested wheel-rail; calibration holes corresponding to the rail web and rail bottom of the tested wheel-rail are formed in the calibration plates; centering holes used for observing positioning to realize correct arrangement of the calibration plates are formed at the middle portions of the bottom surfaces of the calibration plates; and the tops of the left calibration plate 10 and the right calibration plate 20 are provided with clamping mechanisms 30 for realizing the connection of the two calibration plates. With the positioning device of the invention adopted, the calibration holes can be accurately positioned, and the steel rail strain gauge can be bonded fast and conveniently, and the position of the strain gauge can be precise, and working efficiency and the accuracy of test results can be improved.