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83results about How to "Various detection methods" patented technology

Intelligent rail state patrolling device and method

The invention relates to an intelligent rail state patrolling device and method. The patrolling device comprises a camera shooting unit, a control unit and a data analyzing and processing unit, wherein the camera shooting unit comprises a light source, a liner camera and a laser displacement sensor; the light source is used for providing illumination; the liner camera takes photos and collects rail plane image data under the control of the control unit; the laser displacement sensor collects rail vertical direction displacement data under the control of the control unit; the data analyzing and processing unit receives the collected rail plane image data and the rail vertical direction displacement data under the control of the control unit, and a 3D modeling technology is adopted to perform data synthetizing on the rail plane image data and the rail vertical direction displacement data to form a rail perspective mold, so that a three-dimensional perspective drawing of real rail state is output, and patrolling is convenient. According to the patrolling device provided by the invention, the rail plane image data and rail vertical direction displacement data are collected at the same time, and a manner of a mold is adopted to restore the complete and continuous real rail state, so that the efficiency, the accuracy and the reliability of rail patrolling are improved.
Owner:北京鹰路科技有限公司

Drill hole gas extraction laboratory simulation system and method

The invention discloses a drill hole gas extraction laboratory simulation system which comprises a drill hole simulation pipe, a hole sealing slip casting system, a gas pressure simulation loading system, a gas detector, a sound emission system and a computer; the two ends inside the drill hole simulation pipe are provided with plug simulation structures, a plurality of crack simulation holes areformed in the wall of the drill hole simulation pipe, a crack simulation pipe is connected to each crack simulation hole, and a gas leakage detection switch is connected to each crack simulation pipe;the hole sealing slip casting system comprises a slip casting pipe, a slip returning pipe, a slip casting handle and a slip casting pressure gauge; the gas pressure simulation loading system comprises a vacuum pump, a gas tank, a vacuum pressure gauge, a vacuumizing switch, a gas tank switch, a gas pressure gauge and a gas extraction switch. The invention further discloses a drill hole gas extraction laboratory simulation method and a hole sealing material sealing performance testing method. The on-site situation can be truly simulated, little manpower and material resources consumed by experiments are consumed, the experiment effect is good, the experiment result accuracy is high, and practicability is high.
Owner:XIAN UNIV OF SCI & TECH

Software abnormality detection method and apparatus

The present invention discloses a software abnormality detection method and apparatus, and belongs to the technical field of computers. The method comprises: when the software is running normally, if the terminal is detected in a resource idle state currently, carrying out abnormality detection on all the files contained in the software based on at least two detection algorithms; when the software is abnormal, determining the crash process when the abnormality occurs to the software, and obtaining a call stack of the crash process, wherein the call stack records files called in the crash process; and when there is file with wrong attribute information in the called files, determining abnormality files exist in the files called in the crash process, and carrying out abnormality detection on all the files contained in the software based on at least two detection algorithms. According to the method and apparatus disclosed by the present invention, different strategies are used to detect the files contained in the software under different scenarios of normal and abnormal running of the software, and the abnormality detection is based on at least two detection algorithms, so that the detection manners are diverse and relatively flexible, functions are rich, intelligence is relatively excellent, and the effect is good.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Multi-spectral counterfeit bank note detection system and method

The invention discloses a multi-spectral counterfeit bank note detection system and method. The detection system comprises a linear array light source system and a linear array detection system. A multi-spectral light source is installed in the linear array light source system, a photoelectric detector used for detecting wide-band light intensity signals is integrated inside the linear array detection system, light emitted by the multi-spectral light source is irradiated on the surface of a bank note and is reflected or transmitted by the bank note to reach the linear array detection system, and the photoelectric detector inside the linear array detection system converts the light intensity signals into electrical signals and sends the electrical signals to an upper computer. The detection method comprises the steps that the multi-spectral linear light source scans the bank note, a multi-spectral reflection or transmission image is obtained, the spectral image of the bank note to be detected and a spectral image of a true bank note are compared, and bank note identification is accomplished. The multi-spectral counterfeit bank note detection system and method can well recognize illegally modified or altered bank notes and spliced bank notes, and are more accurate in recognition compared with the prior art.
Owner:广州智清电子科技有限公司

Intelligent glasses

The invention discloses intelligent glasses. The intelligent glasses comprise an inclination detection unit, an alarm unit and a control unit, wherein the inclination detection unit is used for detecting the inclination degree of the intelligent glasses so that an inclination angle can be obtained; the alarm unit is used for giving out an alarm signal; the control unit is connected with the inclination detection unit and the alarm unit and used for judging whether the inclination angle is greater than a preset angle threshold value or not, and when the inclination angle is greater than the preset angle threshold value, the control unit controls the alarm unit to give out the alarm signal. The intelligent glasses can be directly worn on the head of a student, the space of a desk or a chair does not need to be occupied, and the intelligent glasses are not limited by the height of the desk or the chair and are convenient to use; in addition, the inclination detection unit is adopted, therefore the precise inclination angle can be detected, the intelligent glasses are not limited to only height detection, and thus the intelligent glasses have the advantages of being wide in detection range and high in alarm accuracy; in addition, the intelligent glasses further have the advantages of being simple in structure, convenient to carry, low in cost and easy to apply and popularize.
Owner:LE SHI ZHI ZIN ELECTRONIC TECHNOLOGY (TIANJIN) LTD

Multi-exploration geophysical field parallel acquisition system and method

InactiveCN109116442AVarious detection methodsImprove the efficiency of exploration and constructionGeological measurementsMulti fieldPhysical field
The invention discloses a multi-exploration geophysical parallel acquisition system and method, and relates to the technical field of geophysical exploration. The system comprises a control host, an intelligent electromagnetic emission device, multiple intelligent acquisition devices, a major line and multiple sensor receiving devices. The intelligent acquisition devices receive the working mode and the acquisition parameters issued by the control host. The intelligent electromagnetic emission device receives the physical field emission mode and the emission parameters issued by the control host. The intelligent acquisition devices are connected with the sensor receiving devices through the major line. The intelligent acquisition devices can acquire any signal of electric method, earthquake, transient electromagnetic, magnetotelluric and radio wave signals. The multi-exploration geophysical field parallel acquisition system and method have the advantages that the system integrating multiple geophysical exploration methods is realized, the observation system is arranged in one step, multi-field parallel acquisition is realized by exciting the physical field in one step, the detection methods are diverse and the exploration construction efficiency can be greatly enhanced.
Owner:ANHUI HUIZHOU GEOLOGY SECURITY INST

Fe-MOFs chemiluminescence-fluorescence double-response immunosensor

The invention discloses a Fe-MOFs chemiluminescence-fluorescence double-response immunosensor. The immunosensor comprises detection antibodies and a paper chip; the detection antibodies are labeled byFe-MOFs; the detection regions of the paper chip are connected with capture antibodies; the non-specific sites of the paper chip are sealed through a sealing agent; and the Fe-MOFs are a metal organic frame material formed by Fe<3+> and 2-aminobenzene-1,4-dicarboxylic acid. According to the immunosensor disclosed by the invention, the Fe-MOFs are used as signal molecules, have relatively high stability and have relatively good water solubility; and in addition, the material not only has fluorescent performance, but also can catalyze a luminal-H2O2 chemiluminiscence system to generate chemiluminiscence. When the immunosensor disclosed by the invention is used for immunoreaction, two modes of the signal output of the detection result of the immunosensor can be provided, in particular, detection can be performed through either a fluorescence method or a chemiluminescence method, the two detection modes can be flexibly selected, and therefore, detection modes can be enriched, and the useof the two modes can further improve the accuracy of the detection result.
Owner:SHAANXI NORMAL UNIV

Laboratory simulation method for borehole gas drainage and test method for sealing performance of hole sealing materials

The invention discloses a method for simulating a borehole gas drainage laboratory, which comprises the following steps: 1. preparation in the early stage of the experiment; 2. prefabricating a plug simulation structure and forming a grouting space; 3. injecting grout into the borehole simulation pipe to simulate sealing hole, and the acoustic emission signal data used to study the crack plugging situation is collected by the acoustic emission system; four, test the negative pressure pumping ability; five, detect the influence of gas leakage at different positions of the drilling simulation pipe on the gas concentration of the drainage; the present invention Also disclosed is a method for testing the airtightness of the sealing material, including the steps: 1. Preparation in the early stage of the experiment; 2. Prefabricating the plug simulation structure and forming a grouting space; 3. Injecting the sealing material into the drilling simulation pipe and observing the cracks Blockage; 4. Test the negative pressure capacity. The invention can truly simulate on-site conditions, requires less manpower and material resources for experiments, has good experiment effects, high accuracy of experiment results, and strong practicability.
Owner:XIAN UNIV OF SCI & TECH

Detection system for remotely monitoring people in elevator and trapped person monitoring system

The invention discloses a detection system for remotely monitoring people in an elevator. The detection system comprises a signal acquisition mechanism, an elevator Internet of Things terminal and an elevator Internet of Things platform, the signal acquisition mechanism comprises a plurality of voice and infrared sensors and a plurality of weighing sensors, and the voice and infrared sensors are installed at the four corners of a ceiling of an elevator car so as to detect voice signals and infrared signals in the car; the weighing sensors are installed at the four corners of the car bottom so as to detect load signals in the elevator; and the elevator internet-of-things terminal obtains the voice signals, infrared signals and load signals and transmits the signals to the elevator internet-of-things platform, and the elevator internet-of-things platform judges whether a person exists in the elevator or not according to the three signals so as to generate a person-in determining signal. Whether a person exists or not is judged through the voice and infrared sensors at the four corners of the ceiling and the weighing sensors at the four corners of the car bottom, the detection modes are diversified, and the detection accuracy is high. The invention further discloses a corresponding monitoring system for remotely monitoring people trapped in the elevator.
Owner:IFE ELEVATORS
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