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38results about How to "Suitable for wide use" patented technology

Indoor positioning device and method based on inertial guidance and radio frequency identification

The invention discloses an indoor positioning device based on inertial guidance and radio frequency identification. The device comprises a positioning terminal, a radio frequency transmitting module and a server, wherein the positioning terminal comprises a three-dimensional accelerometer, a three-axis gyroscope, a radio frequency signal receiver, a wireless communication module, a microprocessor and a shell, the three-dimensional accelerometer and the three-axis gyroscope are fixed in the shell, the axis Z of the shell is vertical upwards, the communication main line of the three-dimensional accelerometer is connected with the microprocessor, the three-axis gyroscope and a three-dimensional accelerometer coordinate are in coincidence, the communication main line of three-axis gyroscope is connected with the microprocessor, the radio frequency signal receiver and the wireless communication module are respectively fixed on two sides of the inner part of the shell, and the communication main line of the radio frequency signal receiver is communicated with the microprocessor. The invention further discloses an indoor positioning method based on the inertial guidance and radio frequency identification. The indoor positioning technology related in the invention has the advantages of being high in positioning accuracy, not affected by indoor complex structures and electromagnetic interference, low in cost and the like.
Owner:KINGSHORE NEW RESOURCES ELECTRIC JIANGSU

Power transmission line covered ice monitoring device based on rotation reference conductor

The invention provides a power transmission line covered ice monitoring device based on a rotation reference conductor. The power transmission line covered ice monitoring device at least comprises the reference conductor, a hanging support and a tension sensor. The reference conductor can be rotationally connected with the tension sensor. The tension sensor is fixedly connected with the hanging support. An ice melting unit is arranged in the reference conductor. The reference conductor rotates under the actions of wind force and covered ice gravity so that uniform cylindrical covered ice can be formed on the surface of the reference conductor; the tension sensor is utilized for monitoring the weight of the covered ice to carry out simulated monitoring on the covered ice of a power transmission line, the covered ice of the power transmission line can be effectively monitored, the effect of the environment on the monitoring result is effectively avoided, and the covered ice monitoring accuracy can be greatly improved.
Owner:CHONGQING UNIV +1

Management circuit for self-powered microprocessor protection device microprocessor

A management circuit for a self-powered microprocessor protection device microprocessor comprises a watchdog circuit, a power monitoring and resetting circuit and a logic enabling circuit, wherein the logic enabling circuit is connected with the output end of the watchdog circuit and the output end of the power monitoring and resetting circuit. When the power monitoring and resetting circuit outputs effective power signals and the watchdog circuit outputs resetting signals, resetting signals of the microprocessor are output. Resetting false operation generated in the power-on and power-off processes of an external power source are avoided. Resetting false operation caused by delayed resetting when a general watchdog circuit is used after the power is connected can be avoided. The power monitoring and resetting circuit is connected with the microprocessor and provides effective signals, synchronous with the watchdog circuit, of the external power source, real-time monitoring of the state of the external power source and synchronizing of the watchdog circuit can be achieved by the microprocessor, and false operation due to the fact that the microprocessor can not forecast the state of the watchdog circuit can be avoided. Based on the synchronous signals, active peripheral circuit management is achieved, and the power consumption is reduced.
Owner:浙江知祺电力自动化有限公司

Self-adjusting yield-increasing greenhouse

InactiveCN111937650AIncreased sensitivity to thermal deformationPrecise control processClimate change adaptationGreenhouse cultivationPhotosynthesisAgricultural engineering
The invention discloses a self-adjusting yield-increasing greenhouse, and belongs to the technical field of agricultural planting equipment. The self-adjusting yield-increasing greenhouse comprises agreenhouse body and a greenhouse roof connected with the top end of the greenhouse body, wherein the outer sides of the greenhouse body and the greenhouse roof are wrapped with PE films, and a supporting cross rod is fixed at the joint between the greenhouse body and the greenhouse roof; and a diluted hydrochloric acid storage barrel is fixed to the inner top of the shed roof, a liquid outlet pipeis connected to the bottom end of the diluted hydrochloric acid storage barrel, a liquid distribution pipe is connected to the lower side wall of the supporting cross rod, the liquid outlet pipe is arranged in correspondence to to a water inlet of the liquid distribution pipe, and a liquid outlet control mechanism is connected between the liquid outlet pipe and the liquid distribution pipe. Carbon dioxide generated by reaction in spherical air bags can be used for promoting photosynthesis of plants in the greenhouse, and ammonium chloride in the spherical air bags is brought out to fertilizeland when the carbon dioxide is sprayed out so that growth of the plants in the greenhouse can be promoted, and the purpose of effectively increasing the yield is achieved; and the whole process can be self-adjusted, the whole device is simple in structure and low in cost, and the device is suitable for wide-range use.
Owner:刘学亮

Green plant windbreaking plate structure based on wind power generation

The invention discloses a green plant windbreaking plate structure based on wind power generation, and relates to the technical field of natural disaster protection. The green plant windbreaking platestructure based on wind power generation comprises a windbreaking plate frame, a windbreaking plate, functional side columns and a connection blocking frame, wherein side rotating frames are arrangedon the top of the windbreaking plate frame, two sides of the windbreaking plate frame are arranged to correspond to the functional side columns, the connection blocking frame is installed between thefunctional side columns, the functional side columns and the connection blocking frame can be continuously arranged, a wind power rotating shaft is installed on the connection blocking frame, and wind power fan blades are arranged on the top of the wind power rotating shaft. The green plant windbreaking plate structure based on wind power generation is provided, the problem that for existing large-area green plant cultivation, there are no structure devices capable of automatically protecting a whole park against strong wind on a large scale when the strong wind comes is solved, the device can be automatically started in windy weather, and can be controlled through remote commands, and no external power supplies or wires are needed, so that installation positions are unlimited.
Owner:海外远景(北京)科技有限公司

Oil field construction technology by means of biological surfactant

The invention relates to an oil field construction technology by means of a biological surfactant. The construction technology comprises the steps that on the condition that 20-22 Mpa pressure is applied to a ground well hole, after it is guaranteed that piecing and leaking do not occur, prepad fluid of which the concentration is 2.5-3.0 wt.% is injected into an oil well, and the usage amount is 5-7 cubic meters; then treating fluid of which the concentration is 2.0-2.2 wt.% is injected into the oil well, the usage amount is calculated by the formula Q=pi(r^2).h.phi, wherein Q is the total liquid amount, r represents the treating radius, h represents the effective thickness of the oil well, and phi represents the porosity; finally, waste water is adopted to replace the fluid, and the usage amount is 5-10 cubic meters; after the well is shut down for at least 72 h, a construction tubular column is put out, and well completion is achieved after an original production tubular column is put down. The biological surfactant used in the construction technology has the advantages that the extremely high capacity of releasing all solid surface hydrocarbon (oil) is achieved, secondary pollution cannot be caused to the stratum, disorder cannot be caused to a crude oil dehydration and sewage treatment system, and the oil production can be greatly improved; in addition, the construction technology is convenient to operate, safe and reliable, and suitable for wide-range usage.
Owner:SUZHOU ZFA NEW ENERGY TECH CO LTD

Drainage pipeline centralized dredging device and dredging method thereof

The invention relates to the technical field of dredging devices, in particular to a drainage pipeline centralized dredging device and a dredging method thereof. The dredging device comprises a drainage pipeline, a sludge collecting assembly and an intercepting assembly, and the sludge collecting assembly is perpendicularly communicated with the drainage pipeline; the intercepting assembly is arranged in the sludge collecting assembly, and the top end of the intercepting assembly extends into the drainage pipeline; and the dredging method comprises the steps that 1, centralized dredging wellsare arranged in the drainage pipeline at intervals, and steel wire brushes are arranged in the centralized dredging wells; 2, sludge falls into the wells under the action of gravity, and long and thingarbage such as hair and plastic bags is wound on the steel wire brushes under the action of water flow; 3, well lids are opened regularly, and impurities in the centralized sludge wells are cleanedin a centralized manner; and 4, the well lids are covered. According to the device, impurities such as the sludge, the garbage bags, the hair and the like can be effectively and intensively cleaned, the structure is simple, and the production cost is low.
Owner:NINGBO UNIV

Vehicle gas circuit control device and control method

PendingCN114834376AExtend your lifeMaintain inflation and deflation characteristicsPositive displacement pump componentsPipeline systemsSystem pressureEngineering
The invention discloses a vehicle gas path control device and method. The control device comprises a control module, a gas processing module, a gas storage module, a gas pressure sensor module, a display module and a plurality of air pipelines. When the system pressure is larger than a certain value, the unloading valve is opened, the pressure of the pressure switch loop is increased, the pressure switch is opened, the air compressor electromagnetic valve is driven, and the air compressor is disengaged to stop inflating; on the contrary, when the system pressure is smaller than a certain value, the chassis controller controls the air compressor to be engaged to start inflating; when regeneration is needed, the unloading valve and the regeneration valve are opened, and water impurities in the pipeline and the dryer are filtered; the controller sets different threshold values for regeneration, inflation and inflation stopping according to the working condition of the vehicle, under the condition that the requirement for safe gas use of the vehicle is met, the reverse towing working condition is reasonably utilized for more inflation, energy recovery is achieved, and oil consumption is reduced; and in addition, the auxiliary starting function can be achieved, and the starting performance of the whole vehicle is improved.
Owner:SINO TRUK JINAN POWER

Dynamic below-knee prosthesis with continuous flexible toe joint

The invention relates to dynamic below-knee prosthesis with a continuous flexible toe joint. The dynamic below-knee prosthesis is characterized by comprising a whole sole, a toe joint and a below-knee prosthesis; and the toe joint comprises a motor arranged on the whole sole through a support, the motor is connected with a connecting rod through a driving mechanism, the other end of the connecting rod is rotationally connected with a pressing block, the pressing block is placed on the top surface of the front end of the whole sole, and the below-knee prosthesis is fixedly connected or hinged to the top surface of the rear part of the whole sole. The dynamic below-knee prosthesis has the advantages of high movement coherence, capability of being independently installed or replaced and capability of providing continuous flexible power for movement of a shank of a user, and can be widely applied to various amputees of different degrees.
Owner:北京工道风行智能技术有限公司

Modularized harmonic drive numerical control rotary table

The invention discloses a modularized harmonic drive numerical control rotary table which comprises a harmonic speed reduction part, a power supply part, a hydraulic brake part, an auxiliary output part and a fixing shell. The harmonic speed reduction part, the power supply part, the hydraulic brake part and the auxiliary output part are all arranged on the fixing shell. The harmonic speed reduction part comprises a harmonic speed reducer, an input shaft, a transmission flange, an output shaft and an output disc, wherein the harmonic speed reduction part is arranged on the fixing shell, the input shaft and the transmission flange are both arranged on the harmonic speed reducer, and the output shaft is arranged on the transmission flange. The power supply part comprises a protective shell, a motor, a transmission part and a tensioning part, wherein the protective shell, the motor and the tensioning part are all arranged on the fixing shell. The transmission device is reasonable in structural design, simple in structure, high in transmission precision, large in bearing capacity and rigidity, long in service life, high in transmission efficiency, simple in manufacturing process, low in manufacturing cost, free of regular back clearance adjustment and suitable for being used in a large range.
Owner:江苏开璇智能科技有限公司
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