283results about How to "Comprehensive measurement" patented technology

The invention provides an intelligent control method, device and system. A plurality of sensors are arranged indoors and outdoors to be used for collecting indoor environment information, human body status information and outdoor environment information, and multisource information constituted by the information collected by different types of the sensors is input a pre-established preset neural network model. Because data input into the preset neural network model come from an indoor space and an outdoor space and are used for environment measurement and human body status measurement, measurement of the ambient environment information and the human body status information can be achieved in a diversification mode through the sensors. The multisource information of the sensors can be fused, the ambient environment of an air conditioner and human body status can be accurately measured, running status includes the human body comfort degree, an air conditioning system is controlled according to the human body comfort degree, and therefore people-oriented control over the air conditioner is achieved, and it is guaranteed that indoor temperature, humidity and wind force are always kept under the state which is optimally suitable for human body dwelling.

The invention discloses improved random forest algorithm based system and method for software fault prediction. The system comprises a data processing layer, a prediction model building layer and a fault predication layer. The method includes calculating a software project attribute set used for acquiring a training model to acquire a training data set of a software prediction model, and performing equalization to the training data set; building a prediction model according to an improved random forest algorithm; screening the model according to performance limiting of accuracy rate and recall ratio; and predicting a software project according to attribute set information of the to-be-predicted software project and a trained prediction model and displaying prediction results and the prediction model. The improved random forest algorithm based system and method for software fault prediction have the advantages of high prediction accuracy rate, performance stability and high execution efficiency, can evaluate whether a final software product reaches specified quality or meets expectation of a user or not, and can guide developers to formulate distribution strategies of software testing and formal verification resources.

The invention relates to a water quality multi-index detection method on the basis of an ultraviolet-visible absorption spectrum. The method comprises the following steps: (1) establishing a water quality algorithm model comprising each water quality index; (2) measuring to obtain the ultraviolet-visible absorption spectrum of the to-be-detected water; (3) calculating to obtain a primary calculation value of each water quality index in the to-be-detected water according to the water quality algorithm model and the ultraviolet-visible absorption spectrum of the to-be-detected water; (4) locally correcting the primary calculation value of each water quality index in the to-be-detected water to obtain a detection result corresponding to each water quality index; and (5) comparing the obtained detection result corresponding to each water quality index and relevant water quality standard of each water quality index, judging whether the to-be-detected water quality exceeds the standard or not and issuing an alarm. By measuring the ultraviolet-visible full-wavelength absorption spectrum of the detected water, combining with the water quality algorithm model and correction parameters, each water quality index in the water can be synchronously calculated. The method can be widely suitable for monitoring and alarming for various kinds of surface water, various kinds of sewage, drinking water, and for control of sewage and water supply treatment processes.

The invention provides a multiparameter water quality comprehensive analyzer, which is connected with an operation management center. The multiparameter water quality comprehensive analyzer comprises a power module connected with an external power supply, an energy storage module, of which the circuit is connected with the power module, a central control module connected with the power module, a sensor module connected with the central control module and a sensor cleaning module connected with the power module, the central control module and the sensor module. The multiparameter water qualitycomprehensive analyzer has the advantages that water quality parameters are measured by utilizing the measuring technology of a spectral analysis method, an ionic analysis method and the like withoutusing of chemical agents, so secondary pollution is prevented; in addition, the transmission mode and communication technology of a digitalized sensor fulfill the aims of multiparameter measurement, flexible configuration and intelligentized automatic management, and an energy storage device of the multiparameter water quality comprehensive analyzer can normally operate under the condition of no external power supply, so that the multiparameter water quality comprehensive analyzer is applied to the field monitoring environment conveniently.

The invention discloses an intelligent parking system suitable for a large-scale parking lot, comprising a vehicle classification navigation module, a parking space state determine module, a parking irregularity identification module, a parking space reservation module, a parking charging module, etc. The inlet of a parking lot and the inlet of each parking space are all provided with wireless sensor nodes. The system has small nodes, is very convenient to deploy and maintain, and can be directly installed at a current parking lot. The intelligent parking system allows drivers to obtain the parking states of a parking lot in advance so as to facilitate route planning, and mitigate traffic pressure, and meanwhile provides convenience for a parking lot attendant to get the picture of the parking lot states so as to reduce management manpower costs, and improve parking lot competitiveness.

The invention discloses a method and system for measuring the in-class concentration degree of students. The method comprises the steps that the concentration degrees of the students in multiple measurement links in class are calculated respectively via student terminals to obtain an accumulated value of the concentration degree of each student in the multiple measurement links; the accumulated values of different students are combined and calculated to obtain the percentage of the concentration degree of each student; and the concentration degree of each student is pushed to a teacher terminal and displayed. According to the method and system, the multiple measurement links are created to measure the in-class concentration degree of the students, the in-class concentration degree of the students is quantified and measured in the comprehensive, systematic, intelligent and feasible manner, and the method and system are conducive to deepening and popularizing of teaching practice; and the method is simple and effective, and a full-digital, informationized and intelligent measurement process is realized.

The invention provides a driving behavior processing method, a vehicle device, and a cloud server, belonging to the field of automobile electronic products. The driving behavior processing method includes that the vehicle device acquires the vehicle driving data, wherein the driving data includes the driving direction, the steering angle, the acceleration, the acceleration direction, and the driving speed of the vehicle corresponding position, the vehicle device transmits the acquired driving data to the cloud server to trigger the cloud server to generate a vehicle driving behavior report; and the vehicle driving behavior report generated by the cloud server is obtained and displayed. Compared with the prior art, the driving behavior processing method can be more comprehensively measure the driving data, so that the cloud side can analyze whether the driving behavior of the current vehicle is proper through the comprehensive driving data to form a driving behavior report, users can conveniently check their driving behaviors and timely correct the bad driving behaviors to prevent the danger.

The invention discloses a full-tensor magnetic field gradiometer based on the giant magnetic impedance effect. The full-tensor magnetic field gradiometer comprises an X-Y-direction gradiometer body, a Z-direction gradiometer body and signal leads. The X-Y-direction gradiometer body comprises a cross-shaped substrate and a giant magnetic impedance thin film, the Z-direction gradiometer body comprises a rectangular substrate and a giant magnetic impedance thin film, a junction point at the input end and a junction point at the output end of an electric bridge are connected with the signal leads, and the signal leads are arrayed symmetric with the geometric center of the whole gradiometer as the three-dimensional center. The full-tensor magnetic field gradiometer has the advantages of being high in accuracy, minimized, low in cost, wide in frequency response, rich in information and the like. Due to the design of preparing a three-dimensional structure through planar thin films, the problem of space consistency of the full-tensor magnetic field gradiometer based on the giant magnetic impedance thin films is solved, and the magnetic field gradient measuring sensor with the size at the chip level is designed for the first time.

The invention discloses a quick gap electromagnetic measurement method and a sensor device. The gap electromagnetic measurement sensor device suitable for any metal or non-metal material and the measurement method of the same are designed based on an electromagnetic induction principle. The sensor device consists of two thin metal sheets, a coil detecting thin plate, a holding rod, a fastener and a lead. The measurement method comprises two steps of calibration and actual measurement. The sensor device and the measurement method adopt an unique ferromagnetic micro-spring piece, namely the sensor device and the measurement method can adapt to gap detection of any material, have the important advantages of being high in measurement speed, precise in quantification and free of leak detection, can effectively replace conventional gap size measurement methods, quickly, precisely and comprehensively measure the gap size of workpieces and are suitable for gap measurement work of various metal or non-metal tubes, plates, bent workpieces and the like, and a detecting signal dynamic range and the linearity degree are improved well.

The invention relates to an overall health assessment method of an aero-engine under variable working conditions based on working condition identification and a Tanimoto distance. The aero-engine works in a complicated changing environment; the performance data do not present a declining tendency because of the changing work conditions of the engine in use; and thus an assessment result of a health assessment method based on a single model is not accurate. According to the invention, the method comprises: a current working condition state of an aero-engine is identified; according to the identified working condition, a corresponding health assessment model is selected and a health state of the system is assessed; and then health indexes under different working conditions are combined to obtain a health index sequence under a changing working condition. With the method, the interference of the working condition changing can be avoided; and thus a real health state of the aero-engine can be provided.

The present invention relates to a transmission line electromagnetic field and instantaneous inspection image acquisition device and method using an unmanned aerial vehicle. The image acquisition device includes: an electromagnetic field measurement unit acquiring an electromagnetic field exposure amount to measure a distance to a subject; an image acquisition unit for photographing with automatic adjustment using information obtained from the electromagnetic field measurement unit; a control unit obtaining image information via an image acquisition camera of the image acquisition unit; and a ground control system, wherein the electromagnetic field exposure amount acquired by the electromagnetic field measurement unit is used to adjust a focus of the image acquisition unit, thereby acquiring a precision image.

The invention discloses a wave pressure based method for measuring wave parameters and tide level of a sea-spanning bridge construction sea area. The method comprises specific steps as follows: step 1, a test point is selected in the construction sea area, a plurality of wave pressure sensors are annularly arranged on the outer surface of a steel pipe pile located in the test point at intervals, and the wave pressure sensors are located in the position 2-4 m lower than a mean water level of the low tide level; step 2, a wave pressure time travel curve corresponding to each wave pressure sensor is generated according to wave pressure values collected by the wave pressure sensor; step 3, one wave pressure sensor with the maximum wave pressure value in a certain time period is selected as a reference wave pressure sensor, and the wave pressure time-travel curve of the reference wave pressure sensor is taken as a reference wave pressure time-travel curve; step 4, the wave parameters and the tide level are calculated according to the reference wave pressure time-travel curve. The structure is simple, and the method is used for comprehensively measuring the wave parameters and the tide level.

The invention relates to a sentence semantic distance measurement method. The method comprises the following steps: firstly, carrying out word segmentation and stop word removal preprocessing on a sentence data set; selecting a word meaning similarity scheme, and setting a threshold value to execute normalization of synonymous words and synonymous words; then, calculating the vector space distanceof the two statements by combining smooth inverse frequency weighting and common component removal; measuring the word order distance of the two statements according to the out-of-order degree; calculating the semantic dependency distance of the two statements by combining the semantic dependency quintuple features; and finally, carrying out hybrid weighting calculation on the vector space distance, the word order distance and the semantic dependency distance. Measurement is from three dimensions of sentence vector representation, sentence word sequence and sentence component dependency, andfinally a final semantic distance is obtained in a weighted summation manner. A word level calculation means is utilized, and a sentence level operation idea is absorbed, and through introduction andcreative combination of a vector space distance, a word order distance and a semantic dependency distance, the semantic distance of the sentences is more comprehensively and reasonably measured.

The invention discloses a human body knee joint soft tissue pressure and track measurement system. The human body knee joint soft tissue pressure and track measurement system includes a measurement device and a display device; and the measurement device and the display device are in a communication connection. The measurement device includes a housing, a switch, a circuit board, a battery pack, and a thin film sensor; the switch, the battery pack and the thin film sensor are electrically connected to the circuit board; the circuit board and the battery pack are arranged outside the housing; the housing is provided with stress surfaces and the switch; the thin film sensor is arranged on the stress surfaces; the stress surfaces are half-moon-shaped inner concave arc stress surfaces; the housing is provided with a vertical column; the number of the stress surfaces is two, and the stress surfaces are symmetrically arranged at two sides of the vertical column; the circuit board is welded with a microprocessor and a blue-tooth module; and the microprocessor is electrically connected to the blue-tooth module.

The present invention discloses a device and a method for integrated protection and measurement and control for a ring main unit. The device comprises a CPU, wherein the CPU is connected with a communication module, a human-machine interface module, a protection module, a power module, a voltage and current sampling module and an entering module; the protection module comprises a sampling coil; the sampling coil is connected with the CPU; and the CPU communicates with an overcurrent protection soft strap, an overvoltage protection soft strap, a reclosing soft strap, a low-voltage protection soft strap, a zero-sequence direction soft strap, a bus grounding soft strap, a TV disconnection soft strap and an overload soft strap. The device and the method can flexibly achieve various protectionand measurement and control functions, and are suitable for line protection with various voltage grades.

The invention relates to a device for measuring the circumferential strain of a rock specimen. The device comprises a first fixed seat and a second fixed seat, wherein the first and second fixed seats are arranged on the two sides of the surface of the upper part of the cylindrical rock specimen to be measured respectively; a cambered force bearing plate is arranged at the bottom of the side, close to the second fixed seat, of the first fixed seat, the second fixed seat is mounted on the force bearing plate, and the first and second fixed seats are fixedly connected through an elastic connecting piece; the first and second fixed seats are tightly hooped on the periphery of the rock specimen to be measured through a hooping band; a linear displacement sensor is mounted on the first fixed seat, a circular deformation displacement pushrod is fixed on the second fixed seat, the linear displacement sensor points to the circular deformation displacement pushrod, and the detection end of the linear displacement sensor is pressed against the end part of the circular deformation displacement pushrod; the linear displacement sensor is externally connected with a background computer. The device has the advantages of simple structure, convenience for mounting, capability of comprehensively measuring the radial deformation of a rock and relatively high accuracy of a measurement result.

The invention provides a vehicle dimensional measurement system based on photoelectric induction and TOF technology. The vehicle dimensional measurement system comprises a control system, a light curtain detecting system and a frame, wherein the control system is in signal connection with the light curtain detecting system; the frame is provided with mirror-symmetrical walking mechanisms; each walking mechanism is provided with a distance detecting module; two distance detecting modules correspond to each other; each distance detecting module is in signal connection with the control system, and is configured to detect a distance from a corresponding position to the vehicle body, generate a distance signal and transmit the same to the control system; and the control system is configured todrive the waling mechanisms to synchronously move along the length direction of the vehicle, record the positional information of the walking mechanisms, determine the positions of the rear view mirrors of the vehicle according to the positional information and the distance signal, and generate vehicle width information. The vehicle dimensional measurement system can accurately measure the width dimensions of various parts of the vehicle body. Compared with an existing measurement system just capable of measuring the widest value of the vehicle body, the vehicle dimensional measurement systemis complete and comprehensive in measurement, and is suitable for various scenes that need to measure the actual dimension of the vehicle.

The present invention discloses a exploring tube sensor signal simulator in petroleum well drilling MWD system, which includes a constant voltage module and seven channel identical structure circuit, which are used to simulate seven channel signal of the sensor as OUTGX, OUTGY, OUTGZ, OUTMX, OUTMY, OUTMZ, OUTT, and each channel analog signals circuit includes a signal conditioning circuit and a follower. The present invention is provided with advantages like output signal of the sensor signal simulator stable, accuracy high, no restrict to external conditions like parameter correction, environment and calibration frame when testing the exploring tube circuit, can measure exploring tube circuit conveniently, accurately and fully, and enhance exploring tube circuit test efficiency.