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57results about How to "Less disturbed" patented technology

Dynamic positioning method and device based on UWB and laser ranging combination

The invention discloses a dynamic positioning method and device based on UWB and laser ranging combination and belongs to dynamic positioning methods and devices. The dynamic positioning device comprises an ultra-wide band (UWB) wireless communication sensors, a UWB positioning label, laser ranging sensors, an upper computer and a POE interchanger. An ultra-wide band (UWB) wireless communication sensor station is arranged in an area to be detected, the laser ranging sensors are installed on and fixed to the ultra-wide band (UWB) wireless communication sensors, the UWB positioning label is fixed to a target to be detected, and the ultra-wide band (UWB) wireless communication sensors and the laser ranging sensors are connected with the upper computer through the POE interchanger. According to the dynamic positioning method and device based on the UWB and laser ranging combination, the laser ranging sensors are arranged on the ultra-wide band (UWB) wireless communication sensors respectively, so that the relative distance between every two adjacent ultra-wide band (UWB) wireless communication sensors is obtained, in this way, the coordinates of the ultra-wide band (UWB) wireless communication sensors can be re-determined or corrected after the ultra-wide band (UWB) wireless communication sensors are moved, and thus the requirement for dynamic positioning is met. The dynamic positioning method and device based on the UWB and laser ranging combination have the advantages that the dynamic positioning method based on the UWB and laser ranging combination is adopted, positioning is accurate, safety and reliability are guaranteed, installation is easy, and operation is convenient.
Owner:CHINA UNIV OF MINING & TECH

Ultrasonic measured and controlled water distributing device

The invention relates to an ultrasonic measured and controlled water distributing device which solves the difficult problems of complicated allocation operation, low efficiency, limited application and the like existing in the prior art. The ultrasonic measured and controlled water distributing device comprises a sleeve pipe, a centralizer, a water-plugging packer, an ultrasonic measured and adjusted water distributor, a ball seat, a screen pipe and a screwed plug and is technically characterized in that underground ultrasonic communication units which are connected with a measurement and adjustment control unit are arranged in the ultrasonic measured and adjusted water distributor in the sleeve pipe, the measurement and adjustment control unit is respectively connected with an ultrasonic flow sensor, a pressure sensor, a temperature sensor and a regulating water nozzle driven by a micromotor, and each underground ultrasonic communication unit is respectively communicated with a ground ultrasonic communication unit by adopting ultrasonic encoding to realize data information transmission between the underground and the ground ultrasonic communication units and automatically finish the regulation on the water injection quantity of each water injection layer. The ultrasonic measured and controlled water distributing device has reasonable structural design, accurate water distribution quantity, no influence from the increase of the water injection layers and widened application range, and realizes that the distributed water flow is directly measured through wireless control by utilizing an ultrasonic communication technology.
Owner:杨忠芳

Current sensor for electric vehicle and detecting method by means of same

The invention provides a current sensor for an electric vehicle. The current sensor comprises a Hall element. The Hall element is electrically connected with a voltage signal collector in an interactive mode, the output end of the voltage signal collector is connected with the input end of a microprocessor, and the working power of the microprocessor and the working power of the voltage signal collector are both provided by a power circuit. The invention further provides a method for detecting currents of a power battery by means of the current sensor. According to the current sensor and the detecting by means of the current sensor, the Hall element is adopted to produce a magnetic field around an energized conductor, wherein the magnetic field is in direct proportion to the currents of the power battery, the currents of the current-carrying conductor are indirectly measured through the method of measuring Hall potentials, and therefore the purposes of detecting the total currents of the power battery and charging and discharging states of the power battery are achieved. The processing amount of the microprocessor is reduced, the circuit structure is simple, interference to voltage signals is small, and a detected value is relatively precise.
Owner:ANHUI ANKAI AUTOMOBILE

Mountain highway icing environment early warning system and method

The invention discloses a mountain highway icing environment early warning system. The system is composed of the following functional systems connected to a communication system, namely an informationmonitoring and acquisition system, an information processing system, a decision support system, an information release system and an evaluation system. A meteorological information monitoring and acquisition sensor, a pavement condition information monitoring and acquisition sensor and a traffic flow detection sensor are integrated together, and are arranged in the most unfavorable low temperature environment sections of a mountain highway, so that the defects that an existing highway meteorological monitoring station is not adapted to the road region environment difference, emergency and regionality. Meteorological information, pavement condition information, and traffic flow information data are acquired in real time to provide a data support for the information processing system. The decision support system comprehensively determines a relatively optimal safety management countermeasure by giving consideration to safety, traffic level and economic indicators based on an analysis result of the information processing system, the safety management countermeasure is transmitted to the site for release through the information release system, and finally the safe and efficient operation of icy roads is realized.
Owner:郭忠印 +2

Safe spelter smelting furnace

InactiveCN105018743AAvoid damageEfficient smeltingSpelterCombustion chamber
The invention relates to a safe spelter smelting furnace. The safe spelter smelting furnace comprises a vertical furnace body. Multiple layers of combustion chambers are arranged in the vertical furnace body. The combustion chamber on each layer is provided with nozzles used for injecting gas or air. A plurality of smelting tanks are arranged in the combustion chamber on each layer. The openings of the smelting tanks are all formed in the outer wall of the vertical furnace body. Two flues are further arranged in the vertical furnace body and located at the two ends of each combustion chamber respectively. The two flues are communicated with the two ends of each combustion chamber respectively. A first electromagnetic valve is arranged at the communication position of each flue and each combustion chamber. Two second electromagnetic valves are arranged at smoke outlets of the two flues respectively. Pressure sensors are arranged in the two flues respectively. A main control system is arranged on the outer wall of the vertical furnace body. The two pressure sensors are connected with the main control system through lines. The main control system is connected with the two second electromagnetic valves through lines. Air pressure can be adjusted automatically, in this way, damage to the smelting furnace is avoided, the service life is prolonged, and the safety is improved.
Owner:龙桂山

Underground engineering surrounding rock stability multi-physical-field monitoring and early warning system and method

The invention discloses an underground engineering surrounding rock stability multi-physical-field monitoring and early warning system and method. The system comprises an underground monitoring subsystem and a ground monitoring and early warning subsystem. The underground monitoring subsystem comprises a multi-physical-field sensing system, a monitoring substation and an industrial looped network.The ground monitoring and early warning subsystem comprises a multi-physical-field data acquisition and storage system, a remote data real-time processing and analysis system and an intelligent earlywarning system; the multi-physical-field sensing system is connected with the monitoring substation, and the monitoring substation is connected with the industrial looped network through a communication optical fiber and a network communication master station, or the monitoring substation is connected with the industrial looped network through a 5G micro base station and a 5G core base station insequence; the industrial looped network is connected with the multi-physical-field data acquisition and storage system, the multi-physical-field data acquisition and storage system is connected withthe remote data real-time processing and analysis system in a wireless mode, the remote data real-time processing and analysis system is connected with the intelligent early warning system, the manualworkload is effectively reduced, the intelligent degree is high, and the real-time performance is high.
Owner:ANHUI UNIV OF SCI & TECH

Sludge and sludge soil sample collecting and sampling device

The invention discloses a sludge and sludge soil sample collecting and sampling device. The device comprises a sampling cylinder formed by fastening two semicircles; the lower end of the sampling cylinder is provided with a lower external thread to be connected with an annular sampler bottom edge or to be in threaded connection with the annular sampler bottom edge through a strain gauge mounting cylinder in threaded connection; the upper end of the sampling cylinder is provided with an upper external thread to be in threaded connection with a connecting cylinder; the upper end of the connecting cylinder is in threaded connection with an exhaust device internally provided with a piston rod and provided with an exhaust hole in a side wall; a coupling for connecting a driving device is arranged at the upper end of the exhaust device; a conical piston body at the lower end of the piston rod is located at an opening in the bottom of the exhaust device; and a matched conical surface is formed at the opening in the bottom of the exhaust device. According to the device, a commonly used small drilling machine can be used as a driving force, and sampling can be carried out in a relatively shallow sludge area by manual driving; and an original sampling mode is changed into a pure static pressure mode from a rotary static pressure mode, so that primary disturbance is reduced.
Owner:天津市水务规划勘测设计有限公司

Mountain highway rainfall environment early warning system and method

The invention discloses a mountain highway rainfall environment early warning system. The system is formed by an information monitoring and acquisition system, an information processing system, a decision support system, an information release system and an evaluation system which are connected to a communication system. In the invention, a meteorological information monitoring and acquisition sensor, a road condition information monitoring and acquisition sensor, and a traffic flow detection sensor are integrated into one body and are arranged in the typical section position of a highway in amountain area. The defects of current highway meteorological monitoring station and road domain environment differences, burstiness and area disharmony are effectively overcome. Meteorological information, road surface condition information, and traffic flow information data are collected in real time and data support is provided for an information processing system. According to the analysis result of the information processing system, the decision support system considers safety, a traffic level and an economic index, comprehensively determines a relatively optimal safety management countermeasure, and transmits to the site for releasing through the information release system. The safe and high-efficient operation of a pavement under a rainfall environment is finally realized.
Owner:郭忠印 +2

Free triiodothyronine measurement kit and fabrication method thereof

The invention discloses a free triiodothyronine measurement kit and a fabrication method thereof, and belongs to the technical field of vitro inspection. By the free triiodothyronine measurement kit,the technical problems of long reaction time, slow measurement speed, narrow of linear range and hook effect easy to generate of the prior art when a tested substance is high in concentration are solved. The kit comprises the following reagents of a solid-phase reagent 1 and a liquid-phase reagent, wherein the solid-phase reagent R1 is a suspension liquid including a T3 analogue-coated paramagnetism microsphere, the liquid-phase reagent R2 is a suspension liquid including an acridinium ester labeled T3 antibody, the paramagnetism microsphere in the R1 is Fe3O4 with a surface wrapped by a carboxyl active group, and the particle size of the paramagnetism microsphere is 0.1-5 micrometers. With the free triiodothyronine measurement kit and the fabrication method thereof, provided by the invention, free triiodothyronine in blood/plasma is quantitatively detected by a chemiluminescence immunity analysis method, the kit has the advantages of high sensitivity, rapid detection, wide linear range, low cost and the like and is simple and convenient to operate, and automation is facilitated.
Owner:DIRUI MEDICAL TECH CO LTD

Low-power-consumption wireless smoke alarm device

The present invention discloses a low-power-consumption wireless smoke alarm device and belongs to the sensing, detection and safety alarm technical field. The low-power-consumption wireless smoke alarm device comprises a micro control unit, a smoke sensor, a data acquisition module, an alarm circuit, a switching quantity control circuit, a micro power wireless module and a power source module; the micro control unit is connected with the data acquisition module, the power source module, the switching quantity control circuit, the alarm circuit and the micro power wireless module; and the dataacquisition module is connected with the smoke sensor. According to the low-power-consumption wireless smoke alarm device, the micro control unit which adopts a Cortex M3 architecture is used to perform control, and therefore, a low power consumption mode and an A/D conversion function can be realized; an ion type MQ-2 smoke sensor module is adopted as the smoke sensor, and therefore, high sensitivity is realized, and early warning can be realized more quickly; and the wireless analysis and warning of the device are realized through the micro power wireless module, and therefore, data are more sensitive than data obtained through a manual mode, and reaction time is decreased, and the debugging efficiency of the warning is improved, and safety is enhanced.
Owner:南京市嘉隆电气科技股份有限公司

A method of monitoring grinding wheel wear and grinding burn by using grinding force

The invention discloses a method for monitoring grinding wheel wear and grinding burn by using a grinding force, and belongs to the technical field of monitor and control of machining processes. The method comprises the following steps of acquiring discrete-time series of a grinding force signal in real time, extracting important characteristic parameters, such as kurtosis, waveform index, pulse index, amplitude-frequency spectrum kurtosis, amplitude-frequency spectrum pulse index, and amplitude-frequency spectrum cumulative probability, of the grinding force signal through time-domain or frequency-domain analysis, identifying different wear degrees of a grinding wheel, and overhauling the blunt grinding wheel in time; during a steady-state grinding stage, extracting an average amplitude of a tangential grinding force or a frequency spectrum centroid of a power spectrum in real time, and controlling the grinding burn. According to the method provided by the invention, the grinding force online monitoring and real-time signal processing are combined, so that the intelligent monitoring and controlling on grinding wheel-workpiece grinding contact status, grinding wheel wear condition, grinding burn and the like in a whole grinding processing process can be realized; the method for monitoring the grinding wheel wear and grinding burn by using the grinding force has various advantages that the antijamming capability is high, the operation is simple, the programming realization is convenient, the intellectualization is realized and the like.
Owner:ACADEMY OF ARMORED FORCES ENG PLA

A kind of early warning system and method for icing environment of mountain expressway

The invention discloses an early warning system for icing environment on a mountainous expressway, which is composed of the following functional systems connected by a communication system, an information monitoring and acquisition system, an information processing system, a decision support system, an information release system and an evaluation system. Meteorological information monitoring and acquisition sensors, road surface condition information monitoring and acquisition sensors, and traffic flow detection sensors are integrated and arranged in the most unfavorable low-temperature environment section of mountainous expressways, which effectively overcomes the differences, suddenness and Regional incompatibility defects. Collect meteorological information, road condition information and traffic flow information data in real time to provide data support for the information processing system. Based on the analysis results of the information processing system, the decision support system comprehensively determines the relatively optimal safety management countermeasures based on the analysis results of the information processing system, taking into account safety, traffic level and economic indicators, and transmits them to the site through the information release system for release, finally realizing safe and efficient operation on icy roads .
Owner:郭忠印 +2
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