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35results about How to "Easy for remote transfer" patented technology

Teletransmission-based embedded fiber bragg grating monitoring system

The invention relates to a teletransmission-based embedded fiber bragg grating monitoring system. The system comprises a broadband light source, an optical circulator, a fiber bragg grating sensor array, a wavelength demodulation module, a central control unit, a data transmission module and a power supply control module. The broadband light produced by the broadband light source enters an input port of the optical circulator and then enters the fiber bragg grating sensor array through an output port of the optical circulator; an optical signal reflected by a grating array is fed into the wavelength demodulation module, and the wavelength demodulation module demodulates the optical signal into an electrical signal; the central control unit acquires and processes the signal in real time through application software for processing fiber bragg grating data, and automatically stores an original signal and calculated measured physical information, and the data transmission module transmits the information of a monitoring point to a numerical control center through a wireless public network; and the power supply control module controls the switch-on and switch-off of a relay through a singlechip, so that on-off of the power supplies of all the parts is controlled and the aim of reducing power consumption is fulfilled.
Owner:CENT FOR HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CGS

Ultrasonic sludge concentration online monitoring device

The invention discloses an ultrasonic sludge concentration online monitoring device, which includes an ultrasonic emission circuit, an ultrasonic emission transducer, an ultrasonic receiving transducer, an ultrasonic receiving circuit, a temperature sensor, a temperature measurement circuit, a microprocessor, a serial communication circuit, a current signal output circuit, a 3G communication module and a fixation frame. The 3G communication module is connected to the microprocessor. The ultrasonic sludge concentration online monitoring device provided by the invention adopts an ultrasonic monitoring method, has strong anti-interference performance, can accurately acquire relevant monitoring data, and analysis and calculation are carried out by the microprocessor to obtain the sludge concentration. The test result of the microprocessor is transmitted to a monitoring center timely and effectively through the 3G communication module to perform analysis and make corresponding decision, and real-time monitoring can be comprehensively and continuously conducted on dynamic change of the sludge concentration. The adopted 3G communication module is a wireless communication network system, which is convenient for field layout and remote transmission, and the monitoring result can be expressed visually.
Owner:中山欧麦克仪器设备有限公司

Urban alarm situation monitoring system based on IoT (Internet of Things)

The invention relates to an urban alarm situation monitoring system based on the IoT (Internet of Things), which comprises a central server. The central server is connected with a manager mobile phone, a cloud server and a LoRa gateway; the LoRa gateway is connected with an urban monitoring terminal; the urban monitoring terminal is connected with a power supply module; the LoRa gateway comprisesan embedded microprocessor; the embedded microprocessor is connected with an RS485 serial port, a second LoRa radio frequency transceiving module and a network communication module; the urban monitoring terminal comprises an MCU; the MCU is connected with a camera, a temperature monitoring module, a humidity detection module, an air quality detection module, a first LoRa radio frequency transceiving module, a positioning module, a state indication lamp, a power supply interface and an alarm button; the power supply module comprises a power supply switching module; the power supply switching module is connected with a high power lithium battery and a municipal power supply interface; and the high power lithium battery is connected with a solar panel assembly and a wind power generation assembly. The urban alarm situation monitoring system has the advantages of safety, reliability, convenience in information remote transmission and convenience in alarm situation disposal.
Owner:河南汇纳科技有限公司

Wide-range hydraulic pressure type sedimentation observation instrument based on round elastic metal membrane

The invention discloses a wide-range hydraulic pressure type sedimentation observation instrument based on a round elastic metal membrane and relates to an earth sedimentation observation instrument. The sedimentation observation instrument is characterized in that a probe (30) is connected with a water storage tank (10) through a flexible plastic water pipe (20) and a flexible plastic air pipe (60) and is connected with a data acquisition instrument (50) through a signal cable (40); the probe (30) comprises a cover plate (3A), a shell (3B), a water through hole (3C), a round elastic metal membrane (3D), a displacement sensor (3E), an air through hole (3F) and a wire through hole (3G). By utilizing the round elastic metal membrane with a novel structure as a key element, the sedimentation observation instrument has the characteristics of wide linear measurement range, high measurement accuracy, long-term performance stability and the like; the sedimentation observation instrument can be used for carrying out multi-point settlement observation, and external common interference factors such as temperature and water evaporation can be filtered by virtue of the differential performance of the sedimentation observation instrument, so that the observation accuracy is improved.
Owner:武汉地震工程研究院有限公司

LoRa-based remote control method for remote controller

InactiveCN108932830AAvoid mishandling controlsGuarantee the normal working processTransmission systemsRadio frequencyFingerprint
The invention relates to a LoRa-based remote control method for a remote controller, which includes: 1) establishing information connection between the remote controller and a plurality of controlledterminals; 2) sending command information to the controlled terminals by the remote controller, then analyzing the received command information and transmitting the information to an executing deviceby the controlled terminals. The remote controller for the method includes: a remote controller comprising a MCU, which is connected with a control key, a fingerprint identification module, a voiceprint recognition module, a first LoRa radio frequency transceiving module, a status indicator lamp, a display module, and a power supply module; the remote controller is connected to a plurality of controlled terminals through the LoRa wireless network. The method is low in power consumption, is convenient to use, has great safety and is advantaged in one-to-many control.
Owner:河南汇纳科技有限公司

Intelligent accounting file storage system based on radio frequency identification

PendingCN108741752ARealize automatic scanning recognitionRealize proofreadingBook cabinetsTransmission systemsWorkloadComputer science
The invention discloses an intelligent accounting file storage system based on radio frequency identification. The system comprises a cabinet and a tag reader. The cabinet body is divided into three boxes with relatively fixed spaces by longitudinal brackets and transverse partition plates; the three boxes include the closed file box, the financial information box and the seal storage box, and electronic tags are bonded to the surfaces of the boxes respectively; each electronic tag includes a chip, antennas and a substrate, and the antennas and the chips are fixed to the substrates through organic adhesive polymers; each antenna is composed of a rectangular part, a bent part and a chip connecting part, and the rectangular parts and the corresponding bent parts are symmetrically distributedon the left and right sides with the corresponding chip connecting parts as the centers. A special antenna circuit is designed, the performance of the electronic tags is improved, and the system is suitable for various accounting file management application occasions; the electronic tags and the tag reader are utilized to achieve automatic scanning identification, proofreading and marking of accounting files, the intelligent operation is fast and convenient, the precision is greatly improved, and the workload of financial staff is significantly reduced.
Owner:常熟京常智能科技有限公司

Construction and application of multi-dimensional coupling-superposition composite color mixing model and gradient chromatography matrix algorithm

The invention relates to construction and application of a multi-dimensional coupling superposition composite color mixing model and a gradient chromatography matrix algorithm. The method comprises the steps: adopting a brand-new digital color matching logic design, constructing a pigment discrete color mixing model and a visualization algorithm of color mixing chromatography thereof, obtaining a serialized chromatography by changing a blending ratio, and taking the serialized chromatography as a basis for color spinning color design, so the digital virtual color matching of the colored yarn is realized, digital virtual color matching of the colored yarn is realized, in practical application, a standard color mixing chromatography can be constructed by combining and mixing five primary color fibers such as yellow, cyan, fuchsin, black and white, a reference basis can be provided for color matching of the colored yarn, and a digital model of pigment color matching is specifically constructed; constructing an algorithm and chromatographic big data of serialized mixed chromatography based on pigment blending, including a complete hue based on pigment color blending and a full chromatographic system with different lightness and saturability; and constructing a color gradient mode and gradient chromatography big data based on pigment blending. Compared with a traditional color matching scheme, the method has the advantages that the obtained color ratio is visual, the color mixing and matching efficiency is high, the consumed time is short, related information is convenient for remote transmission, and the working efficiency of actual chromatographic construction is improved.
Owner:YUYUE HOME TEXTILE

Wireless intelligent data transmission system and method for micro-seismic monitoring

The invention relates to a wireless intelligent data transmission system and method for micro-seismic monitoring, belongs to the technical field of micro-seismic monitoring, and solves the problems ofhigh data storage pressure and high communication traffic cost of the existing micro-seismic monitoring data transmission system. The method comprises the steps of collecting on-site micro-seismic monitoring signals in real time through AD sampling; carrying out signal detection on the on-site micro-seismic monitoring signals by using a threshold judgment and statistical judgment method to obtaincomplete micro-seismic signals; performing fast Fourier transform on the complete micro-seismic signals, and performing spectral analysis on the result after the fast Fourier transform to obtain a signal dominant frequency; performing low-pass filtering processing on the result after the Fourier transform according to the signal dominant frequency to obtain filtered micro-seismic signals; according to the signal frequency, performing data extraction on the filtered micro-seismic signals; and transmitting the signals after data extraction to a monitoring center. According to the method, the data storage pressure of the monitoring center is effectively reduced, and the communication traffic cost is reduced.
Owner:贵州正厦工程检测技术咨询有限公司

Temperature equalizing controller

The invention discloses a temperature equalizing controller, which comprises a single chip, a temperature measuring unit, a temperature control output unit and a keystroke-type input unit, wherein the temperature measuring unit, the temperature control output unit and the keystroke-type input unit are connected with the single chip; and the temperature equalizing controller is characterized in that: a temperature value inputted by the keystroke-type input unit is used as a temperature set value, an on-site temperature value which is measured by the temperature measuring unit in real time is used as a temperature feedback value, a proportion integral differential (PID) control is introduced, a PID parameter is obtained according to a temperature error signal between the temperature set value and the temperature feedback value, the single chip transmits a relevant control signal according to the PID parameter to control the on-site temperature through the temperature control output unit. Due to the adoption of the temperature equalizing controller, the on-site temperature can be measured in real time, the on-site temperature can be adjusted according to the temperature measuring situation and a manual setup situation, the manual setup is completed by operating the keystrokes, and the optimized control of the temperature controller can be realized.
Owner:青岛沈源水务科技有限公司

Fiber photoelastic effect based larger-area sound monitoring system

The invention belongs to the technical field of safety monitoring, in particular to a fiber photoelastic effect based larger-area sound monitoring system. The system comprises a remote demodulation terminal, full fiber sensing terminals in an area to be monitored and a transmission optical cable for connecting the demodulation terminal with the full fiber sensing terminals, wherein a large quantity of full fiber sensing terminals can be multiplexed on the transmission optical cable. In the invention, sensing fibers in the full fiber sensing terminals are used for extracting various sound signals in surrounding environment, and the transmission optical cable is utilized to acquire the information and returning the information to the demodulation terminal; and through corresponding analysis and processing, the information is really restored to realize the real-time monitoring of various sound signals in a large-range area to be monitored. The system mainly comprises passive fiber devices without comprising any electronic components, has no radiant electromagnetic waves, cannot be influenced by electromagnetic interference and is suitable for the fields of military affairs, public security, security, safety production, disaster prevention and control, and the like.
Owner:FUDAN UNIV

Online monitoring device for low-voltage distribution network

The invention discloses an online monitoring device for a low-voltage distribution network, and belongs to the field of online monitoring of the current of the low-voltage distribution network. The device is characterized by comprising a shell and a control circuit fixed in the shell, wherein the control circuit comprises an analog-digital conversion module, a central processing module and a communication module; the output end of the analog-digital conversion module is connected to the input end of the central processing module; an input and output port of the central processing module is connected to the communication module in a bidirectional manner; the communication module is simultaneously connected to a monitoring master station in a bidirectional manner; wireless communication is arranged between the communication module and the monitoring master station; a current acquisition module is further arranged; the current acquisition module comprises a Rogowski coil and an integral circuit; and the Rogowski coil is arranged on a bus of the distribution network, and the output end of the Rogowski coil is connected to the input end of the analog-digital conversion module through the integral circuit. According to the online monitoring device for the low-voltage distribution network, the wireless communication is realized with the monitoring master station, and the remote transmission of data of the bus of the low-voltage distribution network is facilitated.
Owner:孙淑馨
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