34results about How to "Accurate detection and judgment" patented technology

The invention relates to an intelligent filtering tissue box. The intelligent filtering tissue box comprises a tissue box body (1), a tissue box bottom plate (2), a top plate (4), at least one spring (5), a distance measuring sensor (8), a control module (6) , a power supply (7), a voice alarming module (9) and a filtering circuit (10), wherein the power supply (7), the voice alarming module (9) and the filtering circuit (10) are respectively connected with the control module (6); the top plate (4) is arranged above the tissue box bottom plate (2) through the springs (5) and is positioned in the tissue box body (1); and the distance measuring sensor (8) is arranged at the edge of the upper surface of the top plate (4). Through an upward force of the springs (5) on the top plate (4), a tissue under an extracted tissue can be fed into a tissue extracting opening (3) in time, and a user can use the tissue later conveniently. Moreover, by the distance measuring sensor (8), whether tissues in the tissue box run out or not can be detected, the user can be reminded of adding tissues, and tissue extracting efficiency of the tissue box is guaranteed effectively.

The invention discloses a source tracking system using lithologic geochemical genes, and belongs to the field of geological sample detection tracking systems. The source tracking system is characterized in that the geochemical genes represent the characteristics of the relative change trend of the content between elements of geological samples, and different geological samples have different geochemical genes, so the geochemical genes can be utilized to identify the geological samples. However, due to the complexity of the geological action, the geochemical properties of the elements may change in some special geological environments, resulting in a change trend among the elements, i.e., the geochemical genes of geological samples with the same source may change within a certain range (i.e., the variability of the genes).

The invention discloses an automatic detecting and adjusting system for the surge of a centrifugal compressor. The automatic detecting and adjusting system comprises a compressor body, an adjusting valve, a noise analyzer, a PLC, a gas inlet pipeline and an exhaust pipeline. The adjusting valve and the compressor are connected in parallel. The noise analyzer is connected with the compressor body.The PLC is connected with the noise analyzer, the adjusting valve and the compressor body. The decibels and frequency of noise produced by the compressor body are judged through the noise analyzer, and if the surge condition is met, the noise analyzer gives out an alarm signal, and the alarm signal is transmitted to the PLC. After the PLC detects the alarm signal, the PLC gives out a signal, the adjusting valve is opened to an initial opening degree A, at this moment, gas flow of the exhaust pipeline arrives at the gas inlet pipeline, the compressor body stops surge, then, the PLC sends out asignal, and the opening degree of the adjusting valve is gradually decreased till the adjusting valve is completely closed.

The invention discloses a method for detecting people in a vehicle, which comprises the following steps: receiving vehicle body communication bus message information, and analyzing the information to obtain the vehicle action state; using a millimeter wave radar sensor to collect data in the vehicle; corresponding to different vehicle actions The state uses the in-vehicle data collected by the millimeter-wave radar sensor to calculate the confidence level; classify the confidence level and determine the threshold value of each level; determine the detection confidence level of different vehicle action states according to the corresponding threshold value, and according to the confidence level Determine the condition of the occupants of the vehicle. The millimeter-wave radar technology provided by the present invention, combined with the vehicle's detection of multiple cycles at different stages, improves the high reliability of the detection of the remaining occupants in the vehicle, and uses the innovative calculation method of confidence, which greatly reduces the number of missed reports, The probability of false alarms, and can accurately detect and judge the location of the left occupant in the car. And through SMS, telephone, vehicle sound and light alarm and other ways to remind.

The invention discloses a washing machine control method and a washing machine. The washing machine is provided with a turbidity sensor for detecting water turbidity and a conductivity sensor for detecting water conductivity. According to the washing machine control method, conductivity of clear water is detected before washing is carried out, conductivity and a turbidity value of rinsing water are detected at the same time at every rinsing stage after washing is carried out, a conductivity variable quantity is calculated according to the measured conductivity of clear water and conductivity of rinsing water, and rinsing is stopped when the turbidity value and the conductivity variable quantity are both lower than the corresponding set threshold value. During every rinsing, the washing machine can automatically detect and calculate turbidity of rinsing water and conductivity changes of rinsing water, judge whether clothes are rinsed clean according to turbidity and conductivity changes of rinsing water and stop working in time after the clothes are rinsed clean to save water and electricity. The washing machine can automatically add rinsing frequency if the washing machine detects that the clothes are not rinsed clean when the rinsing frequency reaches the set value, so that residual stains, detergents and softeners are reduced, and the purpose of healthy laundry is achieved.

The invention provides a safety helmet quality detection system and detection method based on time-domain transient analysis. The detection system comprises a main control module, a pressure signal acquisition and conversion module, an A / D converter, a memory and a liquid crystal display screen. The detection method is characterized in that, by recording force values of all force process, and carrying out differential algorithm analysis on stress waveform thereof, a slope change process of the whole waveform is obtained, and if the slope change value is large, there is a sudden change in the force value, so that products, which seem qualified but are actually not qualified, are analyzed. According to the scheme, in the process of safety helmet puncture test, rapid and accurate detection and judgment can be realized, misdiagnosis can be prevented, and waveform and judgment parameters are displayed visually on a liquid crystal screen; and the detection method is stable and reliable and high in accuracy, overcomes limit of traditional thinking and has a wide popularization and practical value.

The invention relates to a novel automatic transmission gear shift switch fault detection device, including a gear shift lever driving device, a gear shift switch, a gear shift lever and a controller.The gear shift lever driving device is connected with a motor shaft core, the bottom of the gear shift lever driving device is provided with a gear shift lever meshing groove, the gear shift lever onthe gear shift switch meshes with the gear shift lever meshing groove, the gear shift switch is electrically connected with the controller through a wiring terminal plug. The design of the inventionadopts the gear shift lever driving device which is simple in structure and low in cost to replace a vehicle-mounted gear shift operating mechanism, a gear driving device is mounted on the motor shaftcore, the gear shift lever connected with a gear switch is driven according to a gear shift angle requirement to realize gear switching, at the same time, a PLC is utilized to collect gear switch status signals and perform detection and judgment, and the novel automatic transmission gear shift switch fault detection device has the characteristics of accurate and visual fault judgment, high detection efficiency, and good transplantability which facilitates synchronization with other test items.

The invention relates to a method for gathering foreign DNA in a transgenosis product, which comprises the following steps that: 1) extracting DNA of the transgenosis product; 2) adding buffer solution and nucleic acid probe marked with biotin in the DNA extract liquid obtained in the step 1), and degenerating, annealing and cooling the mixture to the room temperature after uniformly mixing the solution; 3) adding magnetic beads with the surface being marked with Streptavidin into the solution obtained in the step 2), adsorbing the magnetic beads in a magnetic field after uniformly mixing thesolution, and utilizing buffer solution to wash the magnetic beads; 4) arranging the magnetic beads obtained in the step 3) in the buffer solution, heating the buffer solution to more than 80 DEG C, maintaining the temperature for a period of a time, and taking the upper clean liquid to obtain the gather foreign DNA fragment. The method can effectively improve the abundance of the foreign DNA in the DNA solution to be detected, can more correctly detect and judge whether the crops or food contains the transgenosis composition of micro proportion, has rapid detection time, is free from requiring particular reagent material, and has low cost.

The invention relates to a detergent putting controller. The controller is simple in structure and reliable in control. The controller is provided with a detergent storage tank (1) and a liquid conveying channel (2) with an opened inner end and an opened outer end, an inner port of the liquid conveying channel is communicated with the detergent storage tank, a flow sensor (4) and an extraction device (5) are arranged on the liquid conveying channel from the inner port to an outer port in sequence, and the flow sensor is connected with a microprocessor CPU (41). The microprocessor is provided with a program. The program comprises the steps that the extraction device is started to extract detergent in the detergent storage tank, the number Pn of pulse signals of the flow sensor in every unittime is recorded, then the number of pulse signals which are recorded for the current time is compared with that of the pulse signals which are recorded for the last time, if the number of pulse signals is increased, it is judged that the detergent in the detergent storage tank is insufficient, and then the alarm is given to remind a user to add the detergent. The detergent putting controller canbe used as an automatic detergent putting device of a washing machine.

The invention discloses a biochemical reactor for bacterial colonies in ship ballast water, relating to the technical fields of ocean shipping and offshore oil engineering. The biochemical reactor concretely comprises a shell and a rotator; a fluid in a main region forms a pressure difference under the centrifugal action of the rotator so that a fluid in a bacterial colony region generates a one-way flowing characteristic; and meanwhile, bacterial colonies in ballast water only move outwards through small filtering holes under the action of a tangential rotational flow of a fluid such as luciferase and an adjuvant outside the rotator, while fluids such as luciferase, fluorescein and an adjuvant outside the rotator cannot permeate or enter the rotator, then, low-concentration bacteria in the ballast water are gathered towards the main region, bacteria ATP can be sufficiently mixed with the luciferase and the adjuvant in the main region, then biochemical reaction is carried out, and bright light is emitted for realizing the detection of a photoelectric sensor, so that the amount of the bacterial colonies is qualitatively judged. Due to the adoption of the structure, a biological membrane in the traditional reactor is not needed to be maintained and replaced, the economic efficiency and reliability of equipment are improved, and meanwhile, the cost is greatly reduced.

The invention provides an on-line leakage detecting method of a gas cutting-off system. A pressure switch is arranged on a gas pipeline between an electric butterfly valve and an electric glass valve; the electric butterfly valve is connected with a bypass solenoid valve in parallel through gas path; an exhaust solenoid valve is connected on the pipeline between the electric butterfly valve and the pressure switch; the other end of the exhaust solenoid valve is communicated with air. By adopting the method provided by the invention, the leakage of the electric butterfly valve and the electricglass valve is detected on line and judged when the gas is cut off by the gas cutting-off system; the installation is easy and convenient, the operation is reliable, and the detection and judgment are exact and in time. In the detection process, the internal leakage (leakage of the electric butterfly valve) and the external leakage (the leakage of the electric glass valve) of the gas cutting-off system are detected and judged exactly. The problems that the traditional gas cutting-off system cannot detect and judge the leakage on line are solved effectively. In this way, the method of the invention is helpful to reduce the safety accident incidence and improve the production efficiency in metallurgical enterprises.

The invention discloses a safe driving system and method capable of preventing drunk driving and fatigue driving. The safe driving system comprises an alcohol tester, a microprocessor, a camera and an after-locking relay. The alcohol tester is used for sending a camera infrared ray instruction to the microprocessor, testing the alcohol concentration of a driver at the same time, displaying the tested alcohol concentration test value and sending the tested alcohol concentration test value to the microprocessor. The camera is used for starting shooting video under the control of the microprocessor and transmitting the shot camera video to the microprocessor. The microprocessor is used for obtaining the judgment result that whether drunk driving exists, obtaining the identification results that whether the installation direction of the microprocessor is changed, whether the driver is substituted and whether fatigue driving exists and sending an infrared signal to the after-locking relay. The after-locking relay is used for being controlled to be on and off according to the infrared signal. According to the safe driving system and method capable of preventing drunk driving and fatigue driving, whether the driver has drunk driving and fatigue driving can be judged, the phenomena of false blowing, cheating and substitution of the driver in the midway are avoided, and the practicability is high.

The invention discloses a steam generation device and aims to provide a steam generation device provided with a water shortage detection device. The water shortage detection device judges precisely, has low cost, quick response and a long service life, and can remind a user to clean heating tubes so as to avoid heating without water. The embodiment of the invention provides the steam generation device which comprises a water distribution valve (1) and the heating tubes (2) which are transparent or partially transparent at the lower part, wherein the lower end of a lower electrode (21) of eachheating tube (2) is provided with a light-emitting device (111) and a light sensitive element (121); and light emitted by the light-emitting device (111) is refracted by at least one of the heating tubes (2) and then reaches the light sensitive element (121) without passing through an axle center of the heating tube (2). The invention also discloses a household electric steam box which comprises the steam generation device.

The invention discloses a system for detecting and locating a faulty heating point of substation electrical equipment through an infrared array. The system comprises a plurality of infrared probe groups correspondingly arranged near a plurality of pieces of electrical equipment. Each infrared probe group includes at least one infrared probe. The system further comprises a signal processing system connected with the infrared probes. The infrared probes in corresponding positions in each infrared probe group face the same direction, and part or all of the infrared probes point to the electrical equipment in corresponding positions. The signal processing system judges whether there is a faulty heating point and the position of the electrical equipment where a faulty heating point is located according to infrared energy transmitted by the infrared probes. In addition, the invention discloses a corresponding method. The influence of infrared background noise can be suppressed effectively. Detection error can be reduced greatly. Whether there is a faulty heating point can be detected and judged in real time and accurately, and the position of a faulty heating point can be located. Safe and reliable operation of an unattended substation can be guaranteed.

The invention relates to the fields of laser technology and electromagnetic ultrasound, in particular to a method for detecting the bonding force of laser shock waves based on electromagnetic ultrasound technology. In the present invention, the detection device is composed of an electromagnetic induction coil, a black tape, an EMAT electromagnetic ultrasonic transducer, a natural strong magnet, a coil, a high-energy laser, and a comprehensive detection system; The coil is converted into an induced voltage signal in the EMAT electromagnetic ultrasonic transducer. The entire detection device and method have a simple structure, simple operation, fast and accurate detection and judgment, and are applicable to online detection of laser shock wave bonding force of non-conductive materials such as carbon fiber composite materials, ceramics, special coatings / films, etc.

The invention relates to an overhead wire grounding fault locating method for the power distribution network. An overhead wire grounding fault detecting system for the power distribution network comprises power distribution wires, a command center and grounding detecting devices. A plurality of pylons are arranged on 10kV distribution wires between transformer substations at intervals, and the grounding detecting devices are uniformly arranged on the power distribution wires between the transformer substations. The overhead wire grounding fault locating method includes steps of (1) grounding of the power distribution wires; (2) unbalancing of zero-sequence current; (3) transmitting signals to the command center through a signal transmitting module by a processor; (4) displaying at the command center; (5) acquiring accurate fault position. The system adopted in the detecting method is simple in structure, low in equipment cost, easy to erect and implement and accurate to detect and judge. Besides, interferences of branch circuits and the like are avoided, locating and judging time can be effectively shortened, labor is saved, fault maintenance time is greatly shortened, and consumption and loss of power equipment are reduced.