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158results about How to "Reduce testing costs" patented technology

Machine vision based real-time diagnosis method and system of vegetable leaf diseases

ActiveCN102334422Areal-time diagnosisReduce testing costs
The invention discloses a machine vision based real-time diagnosis method and system of vegetable leaf diseases. The system comprises a disease image acquiring hardware part and a real-time diagnosis software part, wherein the image acquiring hardware part consists of a lighting box, a light source bracket, a light source, a round hole at the top of a box body, a digital camera, a camera fixing rod, an optical lens, a polarizer, a box body side door, an objective table and a computer. The method comprises the following steps: acquiring the symptom image of the leaf disease of vegetable to be detected; carrying out image treatment and scab division by utilizing real-time diagnosis software; acquiring the characteristic indexes of scab, such as color, texture and shape; and carrying out real-time diagnosis on the vegetable leaf disease by utilizing a disease identification model. The real-time diagnosis method and system can be directly used for detecting diseases in filed, plastic houses or greenhouses so as to achieve the rapid, stable and real-time diagnosis of various vegetable leaf diseases; no chemical reagent is used, therefore detection cost is reduced and no environment pollution is caused. The real-time diagnosis method and system can be well applied to disease monitoring.
Owner:INST OF VEGETABLE & FLOWERS CHINESE ACAD OF AGRI SCI

Character defect detecting method of tire mold

ActiveCN105675626AImprove detection stabilityReduce testing costs
The invention discloses a character defect detecting method of a tire mold. The method comprises the following steps of S1, scanning the tire mold of a tire to be detected, collecting and obtaining a group of images, and obtaining the circular-arc-shaped profile of the outer side of the tire; S2, fitting the circle center and the radius of the circular-arc-shaped profile of the outer side of the tire, and then, positioning an image region of the tire mold of the tire as an ROI (region of interest) image to be tested; S3, classifying the ROI image; S4, selecting different methods for processing according to the classification of the ROI image, and obtaining a CAD (computer aided design) image block matched with each ROI image; S5, performing character recognition, and further performing defect judgment according to the character recognition result; S6, responding to the condition of the character defect existence judging result; returning the operation to execute the fourth step and the fifth step so as to select the judgment result with few character defects as the final result after secondary defect judgment. The character defect detecting method has the advantages that the detection stability is high; the detection cost is low; the detection accuracy is high; the false alarm rate is low; the application range is wide; the character defect detecting method can be widely applied to the field of tire mold detection.
Owner:GUANGDONG UNIV OF TECH

Connection failure detection method of power battery pack and battery management system

ActiveCN110116623Aavoid localized heatReduce testing costs
The invention relates to the technical field of automobile power batteries, and provides a connection failure detection method of a power battery pack and a battery management system. The problem thatjudgment and prevention cannot be carried out at the early stage of connection failure of a high-voltage bus in the power battery pack in the prior art is solved. The connection failure detection method of the power battery pack comprises the following steps that the total voltage of a battery cell in the power battery pack, the total voltage of the power battery pack, a working current and resistance parameters on the high-voltage bus of the power battery pack are acquired in real time; according to the total voltage of the battery core, the total voltage of the power battery pack, the workcurrent and the resistance parameters on the high-voltage bus of the power battery pack, the total contact resistance of a high-voltage bus connection point of the power battery pack is obtained; failure risk of high-voltage bus connection of the power battery pack is determined according to the total contact resistance and a preset threshold value. The connection failure detection method of the power battery pack and the battery management system are applicable to the judging process of high-voltage bus connection failure in the power battery pack.
Owner:SVOLT ENERGY TECHNOLOGY CO LTD

Combined portable PM2.5 sampling analysis device

The invention discloses a combined portable PM2.5 sampling analysis device. The combined portable PM2.5 sampling analysis device comprises a host, a PM2.5 sampling head, a temperature and humidity sensor and a modular filter membrane assembly, wherein the PM2.5 sampling head, the temperature and humidity sensor and the modular filter membrane assembly are mounted on the host; the host comprises a sampling head fixing seat, a heating module, a filter paper compressing mechanism, a gas inlet pipe, a gas inlet connecting assembly, a filter paper supporting platform, a receiver seat, a ray source receiver and paper feeding assemblies; the sampling head fixing seat, the heating module, the filter paper compressing mechanism, the gas inlet pipe and the gas inlet connecting assembly are sequentially connected; the filter paper supporting platform, the receiver seat and the ray source receiver are positioned below the gas inlet connecting assembly and are sequentially connected; the paper feeding assemblies are positioned at two sides of the filter paper supporting platform; the modular filter membrane assembly is mounted in the filter paper supporting platform. By virtue of the matching of the modular filter membrane assembly and the host, the combined portable PM2.5 sampling analysis device can be used for directly reading PM2.5 on line, and can also be used for weighing PM2.5 concentration by using a weighing method; meanwhile, a sample can be taken back to a laboratory for further component analysis; an overall instrument is convenient to carry, low in detection cost, easy to operate, small in labor workload, high in real-time monitoring efficiency and capable of analyzing and comparing data diversity.
Owner:QINGDAO ZHONGRUI INTELLIGENT INSTR

Safety detection method and equipment for intelligent terminal

ActiveCN110147675AReduce testing time andReduce testing costs
The invention discloses a safety detection method of an intelligent terminal. The safety detection method is applied to safety detection equipment, the method comprises the following steps that when establishing communication connection with an intelligent terminal to be detected by safety detection equipment through a universal connection device, the safety detection equipment can obtain data information in the to-be-detected intelligent terminal, a preset vulnerability rule base is used for detecting the data information, if a response message of the data information is received or a sensitive keyword is detected, it is indicated that the to-be-detected intelligent terminal has an information security risk, and a corresponding detection result is generated. The universal connecting device is provided with various types of data interfaces which can be connected with different types of intelligent terminals, so that one safety detection device can be used for carrying out safety detection on various intelligent terminals, the detection period is shortened, the detection cost is reduced, and the safety detection efficiency of the intelligent terminals is improved. Correspondingly, the safety detection equipment of the intelligent terminal disclosed by the invention also has the above technical effects.
Owner:杭州安恒车联网安全技术有限公司

Detergent concentration detection device for washing machine and detection method thereof

InactiveCN104122301Aavoid direct detectionReduce testing costs
The invention belongs to the field of concentration detection of solution ingredients, and particularly relates to a detergent concentration detection device for a washing machine and a detection method thereof. The detection device fully utilizes resources of the washing machine, takes a micro controller of the washing machines as a core, and then is configured with a sine wave alternating-current excitation source, a conductive cell, a signal processing circuit and a temperature compensation circuit; alternating-current voltage generated by the sine wave alternating-current excitation source is added to an electrode of the conductive cell; alternating-current signal current is generated in the conductive cell, is in direct proportion to conductivity of a detected solution, and is converted to be a direct-current voltage by current-voltage conversion as well as amplification and wave detection of the signal processing circuit; the temperature compensation circuit performs temperature compensation; finally, the concentration of a detergent is obtained by processing and conversion in the micro controller of the washing machine. According to the invention, the concentration of the detergent is obtained indirectly by measuring the conductivity of the solution, and the concentrations of detergents of different brands are in a favorable linear relationship with the conductivity especially within the concentration range of 0-0.15%.
Owner:JIANGNAN UNIV

Method for simultaneously detecting trifloxystrobin and metabolite trifloxystrobin acid residual in rice by LC-MS/MS (Liquid Chromatography-Tandem Mass Spectrometry)

The invention discloses a method for simultaneously detecting trifloxystrobin and metabolite trifloxystrobin acid residual in rice by LC-MS/MS (Liquid Chromatography-Tandem Mass Spectrometry). The method comprises the following steps: extracting a to-be-detected rice sample; salting out a sample extracting solution; adding sodium chloride in the sample extracting solution for salting out, oscillating and centrifuging; purifying the sample subjected to salting out and diluting with acetonitrile; simultaneously detecting the trifloxystrobin and the metabolite o trifloxystrobin acid in the sample analysis solution by using a UPLC-MS/MS (Ultra High Performance LC-MS/MS) method. According to the method disclosed by the invention, a rice test sample is extracted with water and an acetonitrile mixed solution containing formic acid, then is purified by a matrix solid-phase extraction technology, and is subsequently and simultaneously detected under a multi-reaction monitoring (MRM) mode by using the UPLC-MS/MS, so that the simultaneous detection efficiency is improved, and the simultaneous detection cost is reduced; the method has the advantages of low detection limit, high sensitivity, good repeatability and high addition standard recovery rate.
Owner:PLANT PROTECTION & QUALITY & SAFETY OF AGRI PRODS INST ANHUI ACAD OF AGRI SCI

Motor current detection method and system, stirrer and storage medium

PendingCN111983300Asave space in the overall structureReduce testing costs
The invention is suitable for the technical field of motor detection, and provides a motor current detection method and system, a stirrer and a storage medium, and the method comprises the steps thata main MCU carries out the zero point detection of a to-be-detected motor in real time so as to calculate the delay time, controls a silicon controlled rectifier to be in a cut-off state in the delaytime, and starts timing; when the main MCU judges that the timing time is equal to the delay time, an excitation signal and an interrupt detection signal are correspondingly sent to the silicon controlled rectifier and the slave MCU; the silicon controlled rectifier performs rotating speed excitation on the to-be-detected motor, the MCU generates event interruption to perform current sampling on the to-be-detected motor, and when the MCU judges that the change slope ratio of the sampling signal is smaller than the preset slope ratio, current sampling is stopped; the slave MCU sends the maximumcurrent estimation value to the main MCU; when the main MCU receives the maximum sampling current estimation value, serial port interruption is generated to obtain current estimation data; and the main MCU filters the current estimation data to obtain an average value. The problem that the detection process is too high due to the fact that a current loop is adopted for current detection is solved.
Owner:SHENZHEN TOPBAND
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