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89results about How to "Strong extension function" patented technology

Epidemic preventing and controlling system for detecting and searching people with abnormal temperatures

InactiveCN101999888APay attention to the epidemic situation in real timeEffective prevention and control informationDiagnostic recording/measuringSensorsScheduling instructionsComputer module
The invention discloses an epidemic preventing and controlling system for detecting and searching people with abnormal temperatures. The system comprises an information acquisition processing module, a communication processing module and a terminal processing module. The information acquisition processing module consists of an infrared detector, a camera and an information acquisition processor, wherein the infrared detector is used for acquiring face temperature information; the camera is used for acquiring face video information; and the information acquisition processor is used to perform motion target division and profile extraction on the face temperature information and the face video information so as to obtain information of people with abnormal temperatures. The communication processing module is used for transmitting the information of the people with the abnormal temperatures to the terminal processing module. The terminal processing module performs real-time dynamic searching of the people with abnormal temperatures in a monitored area and can send scheduling instruction information for giving an epidemic prompt and tracking people and the like. The system of the invention can monitor and recognize the people with abnormal temperatures in the monitored area and accordingly make a correct response and give good warning for coming epidemics, so that even epidemics outbreak, the people with abnormal temperatures can be found at first time and the epidemic preventing efficiency is improved as high as possible.
Owner:BEIHANG UNIV

Notebook computer docking station

The invention discloses a notebook computer docking station which comprises a host box. A supporting plate for placing a notebook computer is fixed on the host box and provided with a positioning and fixing device which is used for rapidly positioning, clamping and fixing the notebook computer on the supporting plate and is connected with a connector corresponding to a signal output port of the notebook computer, and the connector is aligned to and inserted in the signal output port of the notebook computer after the notebook computer is positioned and fixed on the supporting plate. The notebook computer docking station has the advantages of rapidly positioning the notebook computer, being accurately and reliably abutted with the output port of the notebook computer, being capable of firmly fixing the notebook computer and having prominent anti-vibration and anti-impact capabilities and extended performance.
Owner:深圳市研祥智慧科技股份有限公司

Well logging power graph method and device

The present invention relates to oil well output liquid measuring power graph method and device. Oil well liquid output is measured through analysis of the 3D vibration of oil pumping rod column, oil pipe column and liquid column and the time relationship of their displacement, speed, strain, stress and load, research of the mutual coupling of the force and displacement of these three sys, acquiring oil well relating data with load and displacement sensors, and computer treatment to calculate the effective stroke of the oil pump. Meanwhile, the present invention also performs the diagnosis and analysis of oil well work state and the remote monitoring of oil well.
Owner:PETROCHINA CO LTD

Testing device and method for defocused spot and color bias of optical system

The invention relates to a testing device and method for the defocused spot and the color bias of an optical system, wherein the device comprises a monochromator, a target wheel, a collimator, a rotary table, a CCD (Charge-Coupled Device) micro-measuring unit and an acquisition and control computer; the monochromator, the target wheel, the collimator and the CCD micro-measuring unit are sequentially positioned on the same optical axis; the rotary table is used for arranging the tested optical system and the CCD micro-measuring unit; and the rotary table, the monochromator and the CCD micro-measuring unit are all connected with the acquisition and control computer. The invention can be used for effectively testing the defocused-spot diameters and the color biases of various optical systemswithin different wavelength ranges and well ensures the imaging quality of the optical systems.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI

Greenhouse dripping and irrigating locale monitoring system based on wireless embedded technology

The invention discloses a greenhouse dripping and irrigating locale monitoring system based on a wireless embedded technology. A wireless capturing information node, a greenhouse locale wireless controller and a wireless control information node are formed into a star-shaped monitoring network; the wireless capturing information node transmits an environment parameter to the greenhouse locale wireless controller; the greenhouse locale wireless controller immediately displays and transmits a control order to the wireless control information node; and the wireless control information node drives a valve to move after receiving the control order. The greenhouse locale wireless controller transmits data to a mobile phone user through the GPRS / GSM network, and transmits the data to a central controller through various modes such as the Internet, the USB and the bus. The system abundantly makes full use of the advantages of a ZigBee short distance free wireless network and a GPRS / GSM long distance billing network, is more efficient with the embedded technology, greatly improves the monitoring function of the greenhouse locale, improves the irrigating efficiency, increases the crop yield, increases the yield for the user, and is suitable for the popularization and the application in large range.
Owner:ZHEJIANG UNIV

Residual error network-based detection method for four types of damage of conveyer belt

The invention discloses a residual error network-based detection method for four types of damage of a conveyer belt. The method comprises the steps of recording a conveyer belt running video; extracting picture samples from the video and performing preprocessing; dividing a training data set and a test data set; constructing a residual error network and performing training by using the training data set; performing assessment by using the test data set; and performing a series of processes of real-time detection on the conveyer belt by using the residual error network meeting the requirements,thereby real-time detection of the four types of the damage, including "tear", "scratch", "chamfered edges" and "holes", of the conveyer belt. According to the method, the detection of the four typesof the damage of the conveyer belt is realized through the video, so that complicated work due to use of a large amount of sensor detection apparatuses is avoided and the cost is reduced; and an identification network is constructed by using the residual error network, so that the network training precision is improved and the identification error rate is reduced.
Owner:ANHUI UNIV OF SCI & TECH

An experimental instrument and method for automatic control principle

This invention relates to one experiment device and method of automatic control principles, which comprises the following parts: one PC with LabView function module as virtual wave display and virtual signal generator function after connection with main module; one set of same function module to form each process of parts needed; one main module composed of switch power, AD / DA module and series communication module to generate source signal to it and to convert the module into analogue signal to form experiment box for digital signal to PC machine into digital signals.
Owner:SUNYARD SYST ENG CO LTD

Automatic detecting system and method for extension behavior of Firefox browser

The invention belongs to the software function detection technique, and discloses an automatic detecting system for extension behavior of a Firefox browser, which utilizes an extraction extension line of the instrumentation Firefox browser. The system comprises a browser instrumentation module (101), an extension downloading module (102), a testing site module (103), an extension information extraction module (104), an event simulation module (105), an injection object tracking module (106), a control module (107), and an extension downloading storage vault (108). Compared with the prior art, in order to know the traditional browser expansion behavior, the invention further provides a proper security policy to reduce the extension use risk of the browser, so that the user can own great freedom degree during applying the extension on the premise of guaranteeing the security. Effective judgment reference is provided for judging whether safety threat exist in the inside extension of the browser, that is, the advantages that the Firefox owns great extension function and high humanization degree are fully exerted on the basis of security.
Owner:TIANJIN UNIV

Distortion tester

The invention relates to a distortion tester comprising a rotary table, a light source and a micro imaging system, wherein the light source and the micro imaging system are arranged on the same optical axis and are arranged on two sides of the rotary table. The invention provides a distortion tester which has high measurement precision, high efficiency, stable structure and expandable function.
Owner:陕西光电子先导院科技有限公司

Electromyographic signal and inertia information synchronous collection device

The invention provides an electromyographic signal and inertia information synchronous collection device which comprises a multi-information collection sensor, an embedded microprocessing system, a wireless multi-platform application interface, a power module and a data application platform, wherein the multi-information collection sensor transfers the electromyographic information and inertia information collected in real time to the embedded microprocessing system through a signal synchronous input interface; and the electromyographic information and inertia information are further optimized by the microprocessing system and transmitted to the data application platform through the wireless multi-platform interface in a wireless communication way. The device provided by the invention has a series of advantages such as stable communication signal, strong expansion function, light weight and easiness in carrying and operation and can be effectively adapted to the real-time synchronous collection of electromyographic signal and inertia information in motion; and meanwhile, the device meets the needs for wireless data receiving and treatment of multiple data application platforms such as PC and mobile phone at the same time, and provides great convenience to the clinical research of the collaborative operation way of limbs of human body in motion.
Owner:YANSHAN UNIV

Electroencephalogram, myoelectricity and inertial information synchronous acquisition device

Provided is anelectroencephalogram, myoelectricity and inertial information synchronous acquisition device. The device comprises a multi-information synchronous acquisition sensor, an embedded micro-processing system, a wireless transmission communication interface, a data receiving platform and a power module. The multi-information synchronous acquisition sensor acquires a synchronous electroencephalogram signal, a myoelectricity signal andinertial information in real time, the signalsare sent to the embedded micro-processing system through signal conditioning such as preamplification, activefiltering,post-amplification and the like, the micro-processing system conducts A / D converting and optimizing treatment on the electroencephalogram signal, the myoelectricity signaland the inertial information, and the signalsare wirelessly transmitted to the data receiving platform through the wireless transmission communication interface. The device has the advantages of multi-signal acquisition, wireless transmission, stable communication, strong expandability, portability, easy operation and the like, can be used for real-time synchronous acquisition of the electroencephalogram signal, the myoelectricity signal and the inertial information in the movement, meets the data receiving and processing requirementsof data application platforms such as PC, mobile phone and the like, and provides great convenience for human body motion posture analyses, function evaluation, brain-computer interface researches and application fields.
Owner:YANSHAN UNIV

Data migration method and device

Embodiments of the invention provide a data migration method and device, and relates to the technical field of computers. The method comprises the following steps of: receiving a migration task of migrating data in a first system into a second system; and calling each upper interface corresponding to the migration task, and calling bottom-layer operation interfaces of the first system and the second system by each upper interface through an abstract interface class so as to migrate the data of the first system to the second system. According to the method and device, bidirectional data transmission and migration can be carried out between any two data terminals, and bidirectional data transmission and migration can be realized between any data terminal which comprises cloud storage products, which do not support data migration, such as Baidu object storage and Jinshan object storage and any other data terminal.
Owner:ALIBABA GRP HLDG LTD

An intelligent biological characteristic identification system based on cloud computing

An intelligent biological characteristic identification system based on cloud computing of the invention comprises an acquisition system arranged on a client side, a template generation system and a general control system. The intelligent biological characteristic identification system based on cloud computing also comprises a comparison system and a biological characteristic database storing biological characteristics which are arranged on a cloud server. A system in a chip completes characteristic acquisition, template generation and general control. An upgrade configuration interface is reserved for a plurality of biological characteristic acquisition devices. The intelligent biological characteristic identification system is simple, but the function is powerful. The biological characteristic database and the comparison are completed on the cloud server. According to the system, the construction cost of the biological characteristic identification system is substantially reduced; and biological characteristic identification can be rapidly popularized to enter a civilian security field, and social stabilization is protected. Biological characteristic identification in a plurality of modes can raise the security and accuracy of personal identity authentication, and improve the security degree of security guard. The biological characteristic identification in the plurality of modes gives consideration to populations, whose certain biological characteristics temporarily loss efficacy or permanently lose efficacy.
Owner:BEIJING HENGTEL TECH DEV

Reconfigurable embedded type innovation training method and platform

The invention provides a reconfigurable embedded teaching and innovation training method and platform. A core board plate part and a plurality of common innovation modules matched according to innovation requirement; master and slave modules can be matched at will according to verification type training and innovation requirements, training equipment adopts 'gridding' layout, and a 'block building type' innovation training mode is realized. Under the condition that the modules are not seriously damaged, the training equipment does not need to be eliminated, low cost is realized, and innovation training can be provided for courses such as singlechip system design, computer interface technology, embedded system design and practical training of Internet of things; and cost performance, openness and expansibility are good, and functional modules can be conveniently added and reduced as required for carrying out innovation. The reconfigurable embedded teaching and innovation training method and platform have the advantages that layout of modules of each part is reasonable, a training module is comprehensive, 'zero' maintenance is basically realized, and requirements of verification type, design type, comprehensive and innovation type training can be met.
Owner:TIANJIN BAIFENBAI INFORMATION TECH

Electric vehicle charging station and application method thereof

The invention relates to an electric vehicle charging station and an application method thereof. The charging station a PLC (programmable logic controller) and a plurality of numbered charging modules connected to the PLC. The PLC is further connected with a man-machine interaction interface and a fee collecting identification read-write device. The single-chip micro-computer of each charging module is connected with a relay group through a photoelectric coupler group and then connected with a plurality of charging sockets, and each charging socket has a special number. When one relay is on, the charging socket corresponding to the relay is communicated with a power supply. The current and voltage sampling circuit output end connected to the output end of each relay is connected into the corresponding single-chip microcomputer. The application method includes: the battery of user is connected to one selected charging socket, the PLC allows the charging socket to be electrified temporality and calculates the fee needed for charging the battery, and charging can be performed after the user pays the fee. The PLC controls the charging process, power off and alarming are achieved during overcurrent or undervoltage, and the charging is stopped automatically when the charging of the battery is completed. The electric vehicle charging station has the advantages that the station is stable and reliable in operation and high in interference resistance, the user can complete fee paying and charging in a self-service manner, stations of different scales can be built, and the station is easy to expand.
Owner:广西怀钰科技有限公司

Element of interior orientation and distortion tester

The invention relates to an element of interior orientation and a distortion tester applied to a digital navigation camera. The distortion tester comprises a light source, a rotary table and a parallel light pipe, wherein the parallel light pipe is positioned between the light source and the rotary table and arranged on the same optical axis with the light source. The invention provides an element of interior orientation and a distortion tester with simple structure, convenient operation and high precision.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI

Intelligent cabinet control unit

The invention relates to an intelligent cabinet control unit which comprises a control mainboard, a human-machine interaction module, an indoor temperature-humidity sensor and an outdoor temperature-humidity sensor, wherein the human-machine interaction module, the indoor temperature-humidity sensor and the outdoor temperature-humidity sensor are respectively electrically connected with the control mainboard, the control mainboard comprises a single-chip microcomputer, a power supply module, an alternating-current power supply detection module, a CPLD (Complex Programmable Logic Device), an A / D (Analog / Digital) conversion module, an intelligent control output module, an alarm output module, a storage module and a communication module with a plurality of communication interfaces; the single-chip microcomputer is respectively electrically connected with the alternating-current power supply detection module, the CPLD, the A / D conversion module and the storage module; the CPLD is respectively electrically connected with the intelligent control output module, the alarm output module and the communication module; and the indoor temperature-humidity sensor and the outdoor temperature-humidity sensor are respectively connected with the A / D conversion module. The intelligent cabinet control unit integrates core elements of the single-chip microcomputer and the CPLD, and has the advantages of high integration, powerful expansion function and simple circuit.
Owner:LANZHOU HAIHONG TECH

Bladder volume measuring device, and implementation method of the same

ActiveCN106562794AConvenient quantitative measurementPrecision radiotherapyUltrasonic/sonic/infrasonic diagnosticsInfrasonic diagnosticsImaging processingUltrasonic imaging
The invention relates to an implementation method of bladder volume measurement. The implementation method of bladder volume measurement includes the steps: control of a whole machine; control of probe scanning; control of emission and reception of ultrasonic signals; control of image processing and ultrasonic imaging; according to the obtained image information, drawing the boundary two dimensional coordinates of a plurality of bladder sections, converting the two dimensional coordinates of all the boundary points of each section into three dimensional coordinates, and enabling the three dimensional coordinates to employ OpenGL to establish a 3D bladder model; equally dividing the 3D bladder model into n layers from top to bottom, wherein n is the ultrasonic depth of the bladder; and calculating the area of each layer, and accumulating the areas to obtain the volume of the bladder. The invention also relates to a ladder volume measuring device. The bladder volume measuring device, and the implementation method of the same can conveniently measure the bladder volume without pain, thus reducing iatrogenic urinary system infection, reducing the pain caused by frequent conduit insertion and being convenient to operate, and can preferably control filling of bladder for pelvic cavity tumour radiotherapy, thus positioning accurately for pelvic cavity tumour radiotherapy and achieving accurate radiotherapy effect.
Owner:重庆康超医疗科技股份有限公司

Indoor thermal comfort detection system

The invention relates to an indoor thermal comfort detection system. According to the system, high-precision sensors are used for acquiring the air velocity, air temperature, air humidity and mean radiation temperature, and indoor thermal comfort evaluation is performed by selecting an appropriate metabolic rate and a clothing thermal resistance value and comprehensively considering a variety of environmental parameters. The system comprises an information acquisition module, an information core module, a communication module, an information processing module and a piece of information analysis software, wherein the information acquisition module includes the high-precision sensors. The precision of signal acquisition is high, the speed is high, and the extension function is strong; wireless communication is adopted, the power consumption is low, and the mobility is high; and a principal computer has a clear interface and is high in operability, storage is easy, and the principal computer software is a piece of green software.
Owner:CHINA HOUSEHOLD ELECTRIC APPLIANCE RES INST

FPGA-based integrated communication interface

InactiveCN105117361AReliable and stable communication performanceSimple communication performanceElectric digital data processingCommunication interfaceComputer module
The invention discloses an FPGA-based integrated communication interface. The FPGA-based integrated communication interface comprises an FPGA chip, a communication switching module and a communication interface assembly, wherein the input end of the FPGA chip is connected with an RJ45 interface; the input end of the RJ45 interface is connected with the output end of the communication switching module; the input end of the communication switching module is connected with the output end of the communication interface assembly; the output end of the FPGA chip is connected with an FPGA interface; an A / D converter is arranged at the joint of the FPGA chip and the FPGA interface; the output end of the FPGA chip is connected with a storage chip; the input end of the storage chip is connected with a storage chip driving power supply which is used for driving the storage chip to work; and the communication interface assembly consists of an RS232 serial communication circuit, an Ethernet communication circuit, a USB interface module, a Bluetooth module and an RS485 communication circuit. The FPGA-based integrated communication interface provided by the invention is high in integrity, good in design flexibility, strong in extended function, reliable and stable in communication performance and high in speed.
Owner:LIAONING TECHNICAL UNIVERSITY

Wireless data read-write acquisition handset and electronic bill system

The invention relates to the technical field of the application of the internet of things, in particular to a wireless data read-write acquisition handset 1 and an electronic bill system 2. The wireless data read-write acquisition handset and the electronic bill system are provided with a plurality of functions of positioning navigation, radio frequency reading, wireless communication, quick print, message promoting sending, weighing and the like, can be in wireless connection to web / internet to perform real-time wireless data transmission and can also be connected with a third party device [such as a personal computer (PC)] to perform data transmission. The electronic bill system is provided with a built-in chip, an alarming system and a fixed bar code, and can perform information read-write interchange with the handset. The wireless data read-write acquisition handset and the electronic bill system can be applied in multiple businesses of logistics, medicine, detection and the like, have the advantages of being powerful, high in integrity, efficient and energy saving, capable of being reutilized, low-carbon and environment friendly and the like and have great application values and market prospects.
Owner:范欣

Method of implementing alarm for power-off of base station

The invention discloses a method for warning of power cut-off, which includes the following steps: the pre-defined text is sent to the alarm controller of the base-station when power is off, and then the controller reports the received text. Furthermore, the text can also be sent repeatedly and the length and data can be defined as different one from the normal message. The method initiatively sends the specified alarm on cut-off power repeatedly via the existing physical links, which improves the real-time nature of the system, reliability, anti-interference performance and high-speed response. In addition, the invention has characters such as simple interface, flexible definition of news, expanded functionality, low cost etc.
Owner:ZTE CORP

Base station outdoor standard cabinet monitoring device

The invention relates to a base station outdoor standard cabinet monitoring device, which comprises a control main board, and a man-machine interaction module and an intermediate relay module which are respectively and electrically connected with the control main board, wherein the control main board comprises a single-chip microcomputer, a power supply module, a mains supply detection module, a complex programmable logic device (CPLD), a switching quantity signal input monitoring module, an alarm output module and a communication module. The power supply module is respectively and electrically connected with the single-chip microcomputer, the mains supply detection module, the CPLD, the switching quantity signal input monitoring module, the alarm output module and a storage module; the single-chip microcomputer is respectively and electrically connected with the CPLD, the communication module and the storage module; and the CPLD is respectively and electrically connected with the switching quantity signal input monitoring module, the alarm output module and the mains supply detection module. Since core elements such as the single-chip microcomputer and CPLD are integrated, the base station outdoor standard cabinet monitoring device has the advantages of high integration level, powerful extension function and simple line.
Owner:LANZHOU HAIHONG TECH

Hybrid detecting device for alternating-current voltage and direct-current voltage of wind power converter

The invention discloses a hybrid detecting device for an alternating-current voltage and a direct-current voltage of a wind power converter, and the hybrid detecting device comprises an alternating-current and direct-current high-voltage sampling circuit, a conditioning circuit, an RC (resistor-capacitor) filter circuit and an AD (analog-digital) converting circuit, which are connected in sequence, wherein the alternating-current and direct-current high-voltage sampling circuit is used for detecting the alternating-current voltage and the direct-current voltage of the wind power converter; the conditioning circuit is used for filtering high-frequency interference out from a sampled signal and is separated from a control system; the RC filter circuit is used for filtering out the high-frequency interference of the system and reducing burrs of a waveform; the AD converting circuit is used for converting an analog signal which is output after passing through the RC filter circuit into a digital signal; the AD converting circuit outputs the signal to a CPU (central processing unit) to process the signal; the CPU controls an executor to execute a processing result; and the conditioning circuit is further connected with a signal indicating lamp for indicating that a wind power converter system begins working. The invention aims at providing the hybrid detecting device for the alternating-current voltage and the direct-current voltage of the wind power converter, by using the hybrid detecting device, the detection of the alternating-current voltage and the detection of the direct-current voltage are integrated, and the simultaneous detection of various voltages in different amplitude ranges is achieved.
Owner:GUANGDONG MINGYANG LONGYUAN POWER ELECTRONICS

Electric vehicle charging system and application method thereof

The invention discloses an electric vehicle charging system and an application method thereof. The main control module of the charging system is connected with a plurality of charging modules with identification numbers in a wired or wireless manner, and further connected with a human-computer interaction interface and a charging identification reader-writer. The single chip of each charging module is connected with a plurality of charging output ends with specific numbers by use of driving optical couplers and relays. Once a relay is connected, the corresponding charging output end of the relay is connected with a power source. The output end of a current / voltage sampling circuit which is connected with the output end of each relay is connected to the single chip of the corresponding charging module. The application method comprises the following steps: the battery of a user is connected to the selected charging output end, a main control module enables the charging output end to be electrified temporarily, the charging fee needed by the battery is calculated, and then the user pays before charging. The main control module is used for monitoring the charging process, gives an alarm on abnormal circuit opening and an alarm on overcurrent or undervoltage power failure, and controls automatic stop after full charging. The electric vehicle charging system is stable and reliable in operation and high in anti-jamming capability; the user can complete paid charging through self-service; the system can be established into stations of different scales and is easy to expand.
Owner:江苏琦龙科技有限公司

Conductive liquid volume and flow detecting device

The invention discloses a conductive liquid volume and flow detecting device which comprises a microcontroller module, a flow sensor, a signal conditioning circuit, a display module and a power supply module, wherein the flow sensor is connected with the microcontroller module through the signal conditioning circuit, the display module is connected with the microcontroller module, and the power supply module supplies power to the microcontroller module, the flow sensor, the signal conditioning circuit and the display module. The conductive liquid volume and flow detecting device is high in measuring precision, stability and reliability. A magnetic field is generated by output excitation signal driving the excitation coils of the flow sensor, the induction electrodynamic potential output by the flow sensor is acquired and processed, and the volume and flow of the conductive liquid is accurately calculated.
Owner:WUXI CITY CHONGAN DISTRICT TECH ENTREPRENEURSHIP SERVICE CENT

Beidou intelligent vehicle terminal

The invention provides a Beidou intelligent vehicle terminal that can timely and automatically clean a camera lens and is suitable for transport vehicles. The Beidou intelligent vehicle terminal includes a Beidou vehicle terminal host, an automobile driving parameter acquisition module, a camera, a power supply and a case. The Beidou intelligent vehicle terminal is characterized in that: it also includes an automatic lens cleaning device for keeping the camera lens clean. The automatic lens cleaning device comprises an air collection port, an air pipe and an air outlet. The air collection port is a bell mouth, the big mouth end of the air collection port is towards the vehicle head, and the small mouth end is connected to the air pipe. The air inlet of the air collection port is provided with a filter net. The air pipe is mounted on the vehicle body, the air pipe is provided with a dust exhaust hole, which is provided with an electrostatic dust collector, and the air outlet of the air pipe is towards the camera lens.
Owner:南宁市锋威科技有限公司

Test platform and test method for flexible direct-current transmission power supply module

The invention discloses a test platform and a test method for a flexible direct-current transmission power supply module. The test platform comprises an HMI touch screen. The HMI touch screen is connected with the PLC main controller; a digital quantity input interface and a digital quantity output interface of the power distribution and control unit are connected with a digital quantity output interface and a digital quantity input interface of the PLC main controller; a high-voltage input interface of the power distribution and control unit is connected with a high-voltage output interface of the program-controlled high-voltage source; a high-voltage output interface of the power distribution and control unit is connected with a high-voltage input interface of the to-be-tested module; ahigh-voltage input interface of the voltage transmitter is connected with a direct-current side high-voltage output interface of the to-be-tested module; an analog quantity output interface of the voltage transmitter is connected with an analog quantity input interface of the PLC main controller; a slave station interface of the FPGA core board is connected with a master station interface of the PLC master controller, an AC sampling input interface of the FPGA core board is connected with an AC output interface of a module to be tested, and a high voltage control interface of the program control high voltage source is connected with an output interface of the PLC master controller. The invention discloses a working method of the test platform.
Owner:TBEA XIAN ELECTRIC TECH +1

Reservoir flow velocity measurement method based on pressure sensor

The invention discloses a reservoir flow velocity measurement method based on a pressure sensor, which belongs to the field of automatic control and flow velocity measurement. A water tank, a tap, a pressure sensor, a DC voltage-stabilizing power supply, a serial port, an MSP430F149 microprocessor, a data processing algorithm, a 12864 liquid crystal display, a PC and the like are included, wherein the water tank is used for storing water; the tap is used for controlling on and off of a water flow; the pressure sensor is placed at the bottom part of the water tank for sensing changes of liquid level pressure inside the water tank and transmitting the acquired pressure data to the MSP430F149 microprocessor; through the corresponding data processing algorithm, gross errors are removed, accurate AD data are obtained, liquid level height information and flow velocity information are finally converted and displayed on the 12864 liquid crystal display; the DC voltage-stabilizing power supply provides power for each module; and by using the serial port, the height information and the flow velocity information are displayed on an upper computer of the PC. Thus, the purposes of measuring the liquid level height and the flow velocity of the reservoir at the same time by using the pressure sensor are realized.
Owner:XIAN UNIV OF POSTS & TELECOMM +1
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