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37results about How to "Avoid false results" patented technology

Resolving power measuring device and resolving power evaluation method for three-generation dim light image intensifier

The invention discloses a resolving power measuring device and a resolving power evaluation method for a three-generation dim light image intensifier, and belongs to the field of optical measurement and metering. The resolving power measuring device is characterized by consisting of a light source component, a resolving power target, a collimator tube, an imaging objective lens, a test camera obscura, a charge coupled device (CCD) camera and a computer. The resolving power evaluation method comprises the following steps of: imaging the resolving power target irradiated by a standard light source to a fluorescent screen by using a measured image intensifier; converting into a frame image of a target line by using the CCD camera, and transmitting into the computer; successively processing asingle frame image of the target line by using a normalized cross correlation model and an optical modulation degree model through internal image processing software of the computer to acquire a single frame processing result; and analyzing multi-frame processing results and performing corresponding supplement operation to acquire a final resolving power evaluation result. By the device and the method, the problem of objective evaluation during resolving power measurement of the three-generation dim light image intensifier is solved; and the device and the method can be popularized to other measurement fields such as an intensified charge coupled device (ICCD) measurement field and the like where resolving power is required to be objectively evaluated, and have wide application prospects.
Owner:CHINA NORTH IND NO 205 RES INST

Internet of Things data processing method and device, and Internet of Things system

The invention provides an Internet of Things data processing method and device, and an Internet of Things system the method. The method comprises the following steps of acquiring a data identifier corresponding to collected Internet of Things data, wherein the Internet of Things data is collected by a first Internet of Things device; sending an identity verification request message containing identity verification information of the first Internet of Things device and the data identifier to each second Internet of Things device in the Internet of Things in order to enable each second internetof things device to verify the identity verification information according to the respective corresponding block chain, wherein the block chain comprises identity verification information of the legalInternet of Things devices in the Internet of Things; when identity verification passing response messages exceeding a preset proportion are received, generating a new block comprising the data identifier in the block chain corresponding to the first Internet of Things device; and writing the Internet of Things data, the data identifier and the block number of the new block into a database. According to the Internet of Things data processing method and device, and the Internet of Things system, the authenticity and the reliability of the Internet of Things data can be improved.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD

Electrochemical biosensor and manufacturing method thereof

The invention provides an electrochemical biosensor and a manufacturing method thereof. The biosensor has a front side conducting layer on the front side of a base plate and a back side conducting layer on the back side of the base plate, wherein the front side conducting layers and the back side conducting layers are different; a front side reagent block and a back side reagent block which are different are also arranged on the base plate; two cover plates respectively cover the front side reagent block and the back side reagent block; the front side reagent block and the back side reagent block comprise at least one enzyme reacting with a sample and an electron mediator respectively; the front side conducting layer is provided with three electrodes; the back side conducting layer is provided with two electrodes. According to the manufacturing method, the conducting layers are formed on the front side and the back side of the base plate through printing or magnetron sputtering; insulation layers are printed on the conducting layers; the front side and back side reagent blocks are put in the front end grooves of the insulation layer; the cover plates are attached onto the surfaces of padding layers pasted with the insulation layer and the reagent blocks. The electrochemical biosensor is used for testing two ingredients in the same sample; the blood collection of a user is reduced; the electrochemical biosensor is applicable to the detection of items of glucose, uric acid, cholesterin and the like; the electrode numbers of the front side and back side conducting layers are different, so that the recognition is easy and a test instrument can be conveniently and correctly inserted.
Owner:URIT MEDICAL ELECTRONICS CO LTD

Device and method for checking blank of cup of biochemical analysis meter

The invention discloses a device and method for checking blank of a cup of a biochemical analysis meter. The device consists of a reaction disc, reaction cups, a cleaning mechanism, an optical mechanism, a data acquisition system, a main control mechanism and a mechanism controller. The plurality of reaction cups are sequentially fixedly arranged around the circumference of the reaction disc, the cleaning mechanism, the optical mechanism, the data acquisition system and the main control mechanism are arranged around the reaction disc, the optical mechanism is arranged on and is connected with the data acquisition system, the data acquisition system is connected with the main control mechanism, and the mechanism controller is connected with the reaction disc and the cleaning mechanism. The method comprises the following steps of: firstly, automatically cleaning the reaction cups; secondly, obtaining blank values of the reaction cups; and thirdly judging abnormality of the blank values of the reaction cups. The device and the method for checking the blank of the cup of the biochemical analysis meter, disclosed by the invention, have the beneficial effects of fastness, accuracy, and prevention on error results in a test to obtain the accurate result.
Owner:DIRUI MEDICAL TECH CO LTD

Lag track correlative fusion method, system and application based on random distance

The present invention belongs to the technical field of radars or similar systems special for application, and discloses a lag track correlative fusion method, system and application based on a randomdistance. The concrete flows of the method comprise: inputting a first-class reference track and multiple other-class tracks; selecting windows with sizes of n; calculating the lag correlation; finding a track set meeting the correlation threshold value; performing verification of the random distance for the track correlation in the set; determining the correlative track and performing track fusion; and calculating the incidence relation between the tracks with lag correlation, ranking the incidence relation, finding the track with the maximum incidence relation and taking the track with themaximum incidence relation as an correlative track, and employing a least square method to start fusion from the track lag moment. The lag track correlative fusion method, system and application basedon the random distance are high in classification precision and low in operation time complexity, can effectively solve the fusion problem of lag and interrupted tracks in the track correlation fusion, can improve the track correlation correction and effectively improve the integration of target feature portrayal description through fusion.

Map generation method, positioning method and system, and computer readable storage medium

The invention provides a map generation method, a positioning method and system and a computer readable storage medium. The map generation method comprises the steps of aligning a visual positioning map to a spatial geographic coordinate system, and calculating position information of each key frame in the spatial geographic coordinate system; and calculating azimuth angle information of each key frame relative to the spatial geographic coordinate system by using the position information and the main optical axis so as to obtain orientation information of the key frames. The map positioning method comprises the following steps: acquiring second attribute information and image features of a to-be-positioned image; removing the key frames larger than the screening radius to obtain screened first key frames; screening out a second key frame from the visual positioning map based on orientation information of an image to be positioned and the key frame orientation information; and screening out a third key frame from the key frames based on the image features. According to the method, the error rate caused by image retrieval in the visual map positioning process can be reduced while rapid positioning is carried out by using fewer map key frames.
Owner:SHICHEN INFORMATION TECH SHANGHAI CO LTD

Intelligent correction anti-interference high-precision salinity detector

PendingCN109115837AAvoid contact with the inner wall of the containerIngenious structural designMaterial resistanceInterference resistanceBody contact
The invention discloses an intelligent correction anti-interference high-precision salinity detector. The intelligent correction anti-interference high-precision salinity detector comprises a shell, acircuit board, a display screen, a control key and three arc metal bodies, wherein the outer circumferential surface of the front end of the shell is provided with a recessed groove, the three arc metal bodies are embedded into an exposed opening of the recessed groove and are completely lower than the outer circumferential surface of the front end of the shell; when in detection, the phenomenonthat the arc metal body contacts the inner wall of a container can be completely prevented, the problem of the traditional detector that whether detection ring contacts the inner wall of the containerneeds to be always watched can be prevented, the interference resistance is high, and the detection precision is high; and meanwhile, a first salinity value and a second salinity value are correspondingly acquired by virtue of a first salinity detection module and second salinity detection module in the circuit board, whether the two groups of data are in a designed range can be determined by virtue of intelligent analysis, two groups of data can be acquired by virtue of one-step insertion detection for comparison, the accuracy of the detection value can be effectively ensured, the display error result is avoided, the detection procedures are also simplified, and the detection efficiency is improved at the same time.
Owner:东莞市盛山电子科技有限公司

Resolving power evaluation method for three-generation dim light image intensifier

The invention discloses a resolving power measuring device and a resolving power evaluation method for a three-generation dim light image intensifier, and belongs to the field of optical measurement and metering. The resolving power measuring device is characterized by consisting of a light source component, a resolving power target, a collimator tube, an imaging objective lens, a test camera obscura, a charge coupled device (CCD) camera and a computer. The resolving power evaluation method comprises the following steps of: imaging the resolving power target irradiated by a standard light source to a fluorescent screen by using a measured image intensifier; converting into a frame image of a target line by using the CCD camera, and transmitting into the computer; successively processing asingle frame image of the target line by using a normalized cross correlation model and an optical modulation degree model through internal image processing software of the computer to acquire a single frame processing result; and analyzing multi-frame processing results and performing corresponding supplement operation to acquire a final resolving power evaluation result. By the device and the method, the problem of objective evaluation during resolving power measurement of the three-generation dim light image intensifier is solved; and the device and the method can be popularized to other measurement fields such as an intensified charge coupled device (ICCD) measurement field and the like where resolving power is required to be objectively evaluated, and have wide application prospects.
Owner:CHINA NORTH IND NO 205 RES INST

One-step method fluid detection cup

The invention relates to the technical field of fluid detection, and discloses a one-step method fluid detection cup aiming at the problems of complex liquid detection process and detection result deviation in the prior art, which comprises a cup cover, a nested inner cup, an outer cup and multi-item joint detection cards, wherein a clamping boss is arranged at the upper end of the nested inner cup; a liquid drainage hole is formed in the bottom part of the nested inner cup; a limiting plastic piece is arranged on the outer side of the nested inner cup, the outer cup is arranged on the outer side of the nested inner cup in a sleeving mode, the inner side of the upper end of the outer cup is clamped with the outer side of the clamping boss, the outer side of the upper end of the outer cup is detachably connected with the cup cover, a detection cavity is formed between the nested inner cup and the outer cup, and the limiting plastic piece is provided with the multi-item joint detection cards. The inner and outer cup nested structure designed in the invention can directly separate the measured fluid, reduce the detection operation difficulty and improve the detection efficiency; and through the three multi-item joint detection cards on the detection cup, one specimen can be used for simultaneously detecting not less than multiple detected objects, so that the one-step method fluiddetection cup is convenient and efficient.
Owner:HANGZHOU ALLTEST BIOTECH
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