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.

A wireless IC tag 1 attached to or embedded in a concrete structural object 11 including a ferroelectric memory using a ferroelectric having a power source unit for receiving a radio wave from outside and for generating an electric current by resonating with the radio wave and an antenna unit for carrying out wireless communication in a predetermined frequency bandwidth, a temperature sensor 4, a Ph sensor 5, and a distortion sensor 6 which are mounted on a substrate 2. At least any one of temperature data of the structural object measured by the temperature sensor 4, hydrogen-ion exponent data of the structural object measured by the Ph sensor 5, and distortion data of the structural object measured by the distortion sensor 6 is saved in the ferroelectric memory.

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 discloses a measuring method and system for single-side osteal damage of the human body. The corresponding osteal form at the uninjured side serves as a template, a 3D osteal CT image of the uninjured side is overturned to form a mirror image, and a 3D osteal CT image of the injured side is subtracted from the mirror image to obtain the accurate form of osteal defect at the injured side; and the parameters including the maximal length, width, depth and spatial position of the osteal defect position are measured to make comprehensive evaluation for the osteal defect of the injured side. Model reconstruction and 3D measurement are realized for single-side osteal defect of human body, the osteal defect can be evaluated accurately and comprehensively, and the method and system have great significance in effectively reducing the post-operation recurrence rate caused by the osteal defect.

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 discloses a vehicle test environment information collection system in an altitude environment, and relates to the field of automotive test equipment. An analog signal acquisition module and a temperature acquisition module are connected with a corresponding sensor in a test environment information measuring unit, the temperature acquisition module is further connected with a corresponding sensor in a vehicle information measuring unit, and vehicle information and test environment information are acquired to achieve measurement of an analog signal and a temperature signal; a wireless data receiving module is connected with a corresponding sensor in a wheel state measuring unit, and tyre pressure and tyre temperature data are acquired; a GPS information measuring unit acquires information of latitude and longitude, vehicles, vehicle acceleration and altitude; and the acquired data are all converted to CAN data packets, and the CAN data packets are transmitted to a mainframe computer through a CAN bus and a USB to CAN communication module. According to the vehicle test environment information collection system in the altitude environment, the number of needed instruments is reduced, operating processes of the instruments are simplified, and operation errors are reduced.

The invention discloses a software evolution evaluation method based on code loop complexity measurement. The method includes the steps of firstly, conducting code parse on a to-be-evaluated software source code to generate an abstract syntax tree; secondly, by calculating the number of determination nodes in the abstract syntax tree, conducting the code loop complexity measurement by the three levels of a method level, a class level and a system level; finally, conducting threshold comparison assessment on the metric of the method level and the class level. According to the method, after acquiring the code loop complexity metric of each software version, the loop complexity before and after software evolution is compared and analyzed to locate the change position of complexity and analyze the reason of complexity changes through code change detection. The evaluation method can not only automatically parse the source code to evaluate the loop complexity of the code by various aspects of software and make an early warning for modules and methods with excessive complexity, but also locate the position which causes the complexity changes in evolution, and analyze the causes of the changes to provide reference bases for software evolution evaluation.

The invention discloses a ground-air-combined multifunctional high-precision rapid geomagnetic information measuring device and measuring method. The device includes ground earth magnetic field information measuring parts and an aerial suspension type high-precision rapid earth magnetic field information measuring part. The plurality of ground parts are arranged along a measuring line to be used for measuring information such as an earth surface magnetic field, and the aerial suspension type high-precision rapid earth magnetic field information measuring part is loaded on a flying platform and has a certain height from the ground to be used for measuring information such as an aerial earth magnetic field. The ground parts sends measured information to the aerial suspension type high-precision rapid earth magnetic field information measuring part through wireless communication, overall information data measured on the ground and in the air are transmitted to a satellite network through a satellite communication terminal to a ground monitoring query terminal. The ground-air-combined multifunctional high-precision rapid geomagnetic information measuring device provided by the invention has the beneficial effects of high precision, rapidness and high efficiency and multi-parameter measurement in earth magnetic field measurement through ground-air organic combination, combines earth magnetic field measurement, cartographic information and a GIS, has good system intelligence advancement, and has an advantage of long-term measurement of geomagnetic information of a region with complex terrain.

The invention provides a vertical storage tank safety system, comprising a target set at least including a reference target set; a total station measuring unit used for measuring the reference coordinates of targets in the reference target set; a three dimensional laser scanning unit used for scanning a surface of the storage tank to be scanned and the reference target so as to obtain the storage tank point cloud data on the surface of the storage tank to be scanned, and the target point cloud data of targets in the target set, and sending the data to a data processing unit; and the data processing unit used for generating the deformation data of the storage tank to be detected according to the reference coordinates, storage tank point cloud data and target point cloud data. The vertical storage tank safety system can obtain storage tank geometrical deformation details in a relatively comprehensive way.

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 invention discloses an antenna correlation testing method and an antenna correlation testing system. The system comprises a base station simulator, a tested terminal, testing equipment and control equipment, wherein the base station simulator is used for configuring testing parameters for a plurality of antennae of the tested terminal and informing the tested terminal of the testing parameters; the tested terminal is used for receiving the testing parameters from the base station simulator and transmitting a radio frequency signal on each antenna by utilizing the testing parameter corresponding to each antenna; the testing equipment is used for receiving the radio frequency signal which is transmitted on each antenna by the tested terminal and measuring amplitude and / or phase position of the radio frequency signal which is transmitted on each antenna; and the control equipment is used for obtaining the measuring result of the amplitude and / or the phase position from the testing equipment and calculating the antenna correlation according to the measuring result of the amplitude and / or the phase position. In the embodiment of the invention, the measuring accuracy and the testing efficiency can be improved greatly.

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 dedicated cushion plate for measuring a friction stir welding temperature field. The dedicated cushion plate for measuring the friction stir welding temperature field comprises a cushion body main body and a groove formed in the lower surface of the cushion plate main body. Multiple through holes are formed in the groove. Thermoelectric couples are arranged in the through holes. Temperature measuring ends of the thermoelectric couples penetrate through the through holes and arranged at temperature measuring points of a welded workpiece. Under the condition that the requirements for clamping of trial plates of different thickness and size are met, measuring the temperature field in a friction stir welding process is achieved and the requirements of different temperature measuring points are met so that achieving comprehensive, reliable and accurate measuring of the friction stir welding temperature field and surface features are possible. The problem that welding joint is not well formed due to sagging of plastic materials at a butt joint of welding parts in the welding process is effectively solved so that welding quality is ensured. The dedicated cushion plate for measuring the friction stir welding temperature field is simple in structure, convenient to manufacture, strong in practicality and suitable for friction stir welding of different materials and different welding sizes and measuring of the friction stir welding temperature field under the condition that size matching is ensured.

The invention provides a device and method for testing the noise immunity of a power frequency magnetic field of an electric energy meter. The device comprises a 0.02 level standard equipment cabinet, an exciting current source and an automatic coil overturning device. The automatic coil overturning device comprises a proximate matter frame, a motor driving device, an electric energy meter rotating mechanism and an electromagnetic coil. The exciting current source is placed on the bottom layer of the automatic coil overturning device. An automatic power frequency magnetic field detecting coil module is placed inside the automatic coil overturning device. The method includes the steps that (1) a working power supply is supplied to the electric energy meter by a 0.02 level power source, and the electric energy meter is placed on a tray; (2) electricity is supplied to the coil by the exciting source; (3) the coil is driven by a motor to rotate; (4) test data are uploaded to a computer, so that a test is completed. According to the device and method, the degree of automation is high, the reliability of the test data is greatly improved, the automation verification of the electric energy meter can be achieved, manual intervention is needless, the test data are accurate and reliable, and the performance is stable.

The invention relates to a combustible gas explosion venting harm effect testing device and an analytical method. The device comprises a harm effect parameter collecting device, an explosion device and a data collecting device. Disadvantages of shortages of existing combustible gas explosion venting harm effect research devices and methods are overcome, the combustible gas explosion venting harm effect testing device is reasonable in design, convenient to operate and capable of measuring corresponding parameters of pressure at any position of an external space of a pressure container and jet flames after explosion venting of combustible gas comprehensively and accurately, and also the harm effect analytical method is built. The device and the method can be widely used in dangerousness analyses such as shock waves and jet flames of petrochemical industry production devices after explosion venting of the combustible gas under an actual working condition, and have remarkable effects on anti-explosion safety design, personnel protection and the like.

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.

An on-orbit car wheel lathe being capable of processing multiunit wheels simultaneously relates to a machine tool, comprises a main transmission system, a hydraulic system and a tool support system and is characterized in that the hydraulic system, the main transmission system and the tool support system are all placed on a plane lathe body thereof; the plane lather body is the foundation structure element of the machine tool; a rolling stock to be processed is drawn into the plane lathe body from rail steels; the main transmission system comprises a motor, a belt pulley, and a cardan spindle unit; the hydraulic system comprises a hydraulic station, an ail line, and a hydraulic pressure axle box supporting centering device; every group of wheel pair tool support system comprises two groups of tool rests. The on-orbit car wheel lathe processes a plurality of groups of wheel pairs simultaneously, which can obviously increase processing working performance, and simultaneously as each wheel pair is located on the same processing benchmark platform, the geometric dimension difference among the wheel pairs of the same lathe body (or the same bogie) can be increased.

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.