34 results about "Barometer" patented technology

The utility model belongs to the technical field of barometers, and particularly relates to a barometer which comprises a meter shell, an air inlet, a meter cover, a dial plate and a pointer, the air inlet is arranged on the meter shell, air transmits pressure to a piston through the air inlet, the piston converts the air pressure into linear displacement, and the pointer is arranged on the meter shell. The piston transmits power to the gear output piece through the two-stage transmission mechanism, the gear output piece is connected with the pointer and drives the pointer to deflect on the dial plate, the piston is further connected with a reset piece, and the reset piece acts on the piston and provides pressure opposite to gas acting force. By means of a two-stage transmission mechanism composed of the double sector gears, the rack frame and the cylindrical gear, tiny linear displacement of the piston is amplified and converted into remarkable deflection of the pointer, the detection sensitivity of tiny air pressure changes is remarkably improved, the reading range is expanded, and reading is more accurate and visual.

The application belongs to the field of aero-engine whole machine test, and particularly relates to a reference end pressure stabilizing device of a gas pressure measuring instrument. The device comprises a stabilizing box and a stabilizing plate, and an adapter joint is installed on the box cover. The first end of the first adapter joint is connected with an atmospheric pressure sensor through a first gas pipe, and the second end of the first adapter joint is communicated with the inside of the stabilizing box. The first end of the second adapter joint is connected with the reference end of the gas pressure measuring instrument through a second gas pipe, and the second end of the second adapter joint is communicated with the inside of the stabilizing box. The first end of the third adapter joint is communicated with the outside environment through a third gas pipe, and the second end of the third adapter joint is communicated with the inside of the stabilizing box through a fourth gas pipe. The stabilizing plate is installed in the inside of the stabilizing box, and divides the inside space of the stabilizing box into multiple local spaces which are communicated with each other. The application can make the atmospheric pressure measurement not affected by the engine test state, and the reference end pressure of the gas pressure measuring instrument and the pressure of the atmospheric pressure sensor are kept consistent.

A rotary wing drone communicates its altitude (determined by an onboard GPS receiver) and an air pressure (from multiple onboard barometers) to a ground station which has a known height above sea leve

The invention discloses a control method and device of an aviation temperature control box, a storage medium and an aircraft take-off and landing process recognition device, and relates to the technical field of information processing, the control method of the aviation temperature control box is applied to the aircraft take-off and landing process recognition device, and the aircraft take-off and landing process recognition device is fixed to the aviation temperature control box. The aircraft take-off and landing process identification device comprises an inertial measurement unit and a barometer. The method comprises the following steps: reading preset configuration parameters; acquiring acceleration data measured by the inertial measurement unit and an air pressure value detected by the barometer; compensating the acceleration data through the configuration parameters to obtain compensated acceleration data; calculating the free acceleration of the aviation temperature control box according to the compensation acceleration data; determining the current flight stage of the aircraft according to the free acceleration and the air pressure value; and controlling the aviation temperature control box according to the current flight stage. Through a dual-confirmation scheme of the IMU and the barometer, the probability of state error identification of the airplane can be reduced, and the control effect of the aviation temperature control box is improved.

The utility model provides a calibration and test integrated device in a barometer production process, and belongs to the technical field of detection equipment. The problem that an existing barometer is tedious in calibration and testing is solved. The calibration and test integrated device used in the barometer production process comprises a main box body, the main box body is provided with a test unit connected with the main box body and used for testing, the main box body is further provided with a control unit connected with the main box body and matched with the test unit, and the main box body is further provided with a calibration unit connected with the main box body and matched with the test unit. And the adjusting unit is matched with the testing unit and the control unit and is used for regulation and control. The utility model has the advantage of improving the detection efficiency.

The application discloses a cumulative climbing height calculation method and device, electronic equipment and a storage medium. The method comprises the following steps: obtaining a height average deviation value in a static state; obtaining an environment air pressure value in a motion initial state to obtain a first height value; obtaining a real-time air pressure value at a certain moment in the motion to obtain a second height value; obtaining a real-time difference value according to the difference between the first height value and the second height value; comparing and judging through the calculation between the real-time difference value, the height average deviation value and a motion update threshold, and updating the first height value. The application can avoid the problem that the climbing value is abnormally large due to the accumulation of the static noise of the barometer when the climbing value is calculated, and the climbing value in the up-and-down fluctuation section will not be ignored, so that the accurate accumulation can be achieved. Meanwhile, when the noise of the barometer is calculated, the noise characteristics are independently calculated by a single barometer, and the calculation precision is further optimized.

The utility model discloses a sensitive reaction wind-water dust fall linkage device, which belongs to the technical field of wind-water linkage dust fall, and adopts the technical scheme that the sensitive reaction wind-water dust fall linkage device comprises a wind-water dust fall linkage device body, a water pressure gauge, a barometer, a switch, an air inlet pipe and a water inlet pipe, the wind-water dust fall linkage device body is placed at the top of a supporting plate, a supporting mechanism is arranged on the left side of the supporting plate, and a limiting mechanism is arranged at the bottom of the supporting plate; the problems that most existing wind-water dust-falling linkage devices need to be fixed through four external bolts, when the wind-water dust-falling linkage devices need to be overhauled, the wind-water dust-falling linkage devices need to be disassembled after the four bolts are disassembled, the four external bolts need to be re-installed for re-installation of the wind-water dust-falling linkage devices, and the maintenance cost is high are solved. The disassembly and maintenance of the wind-water dust fall linkage device are time-consuming and labor-consuming, and a connecting pipeline is inconvenient to support.

The utility model discloses a kind of ring main unit, it is related to ring main unit technical field, including cabinet, first fixed block is fixedly installed in cabinet two sides, spring is fixedly connected between pressing plate and the gas storage box, spring is located the outside of movable rod, the outside of first fixed block is equipped with multiple second heat dissipation holes, the outside of gas guide pipe is fixedly connected with protective frame, the bottom of gas storage box is fixedly connected with air inlet pipe.The utility model gas storage box, barometer and unique structure design can accurately judge the saturation state of drying agent, replace drying agent in time, according to replacement time, absorption water vapor weight etc. Data, accurately analyze environmental humidity, and then accurately adjust drying agent filling amount, avoid waste and drying deficiency, greatly improve drying efficiency, maintain the stable drying environment inside cabinet, in addition, fan auxiliary acceleration air flow, further reduce the water vapor content inside cabinet, synergistic drying agent improves overall drying effect.

The utility model belongs to the technical field of barometers, and particularly relates to a barometer capable of being quickly connected, which comprises a barometer body and further comprises a barometer body, an air pressure connecting pipe is mounted at the bottom of the barometer body in a penetrating manner, an air pressure fitting sleeve is fixedly sleeved outside the air pressure connecting pipe, and a mounting pipeline is fixedly mounted at the bottom of the air pressure connecting pipe. The barometer comprises a barometer body, the barometer body is provided with a mounting pipeline, the bottom of the mounting pipeline is provided with a mounting top pipeline in a penetrating manner, the bottom of the mounting top pipeline is fixedly provided with a mounting bottom threaded pipeline, the exterior of the mounting bottom threaded pipeline is fixedly sleeved with a rubber clamping ring, and the barometer body measures the pressure change of atmosphere or internal gas and converts the pressure change into a readable value. The sensitive element in the barometer body generates elastic deformation under the action of pressure, and the deformation is conducted to the pointer through the switching mechanism of the movement in the barometer to cause the pointer to rotate, so that a measured pressure value is indicated on the dial.

The embodiment of the invention provides an altitude record generation method and device and electronic equipment. According to the embodiment of the invention, when the altitude record needs to be generated, the air pressure fluctuation time period and the non-air pressure fluctuation time period are determined from the stored air pressure data, and the reference altitude is determined by using the electronic map elevation information corresponding to the non-air pressure fluctuation time period and the global navigation satellite system information; according to the reference altitude and the air pressure data of the time period, determining an altitude record of a non-air pressure fluctuation time period; and determining the altitude record of the air pressure fluctuation time period by fitting the electronic map elevation information corresponding to the air pressure fluctuation time period with the global navigation satellite system information. According to the embodiment of the invention, the air pressure data is corrected by combining the electronic map elevation information with the global navigation satellite system information, so that the situation that the height of the barometer is calibrated only according to the unstable global navigation satellite system information is avoided, and the error of the generated altitude record is reduced.

Methods, systems, and devices for calibrating a barometer of a client device. A server computer accesses historical data including location data, and atmospheric pressure data collected from a plurality of client devices over a period of time. An equation system defined by the historical data is solved. The equation system has a plurality of unknown parameters, the plurality of unknown parameters comprising a barometer bias of a first client device among the plurality of client devices. The first client device is calibrated using the barometer bias.

An air gauge includes at least one nozzle arranged to expel gas into a gap between the nozzle and a surface and also includes at least one tap for communicating a pressure in the gap to a pressure sensor, wherein the nozzle and the gap are displaced from one another to mitigate the effects of turbulence from the nozzle on the magnitude of the pressure communicated by the tap.

The invention discloses a meteorological station pose monitoring system and method based on a GNSS and an IMU. The system comprises a positioning time service module GNSS, a pose sensing unit IMU and a main control unit. The IMU serves as a low-power-consumption trigger at the same time, and when the system is in a dormant state, only the IMU is in operation; when the inclination angle is detected to exceed a preset threshold value, the IMU wakes up other units; the main control unit integrated edge calculation module constructs a space-time constraint error model of the GNSS, the IMU and the barometer by setting a sliding window which is not less than three times of the maximum sampling period of the sensor, iteratively corrects the IMU accumulated drift and the barometer temperature drift through error feedback, and then determines the fusion confidence coefficient based on the error reciprocal and weights the fusion confidence coefficient. And finally, fusing multi-source data in the window to generate a pose result. And the pose monitoring precision is improved.

A method for providing navigation information by a navigation sensing device including an absolute positioning source providing three-dimensional absolute position data including an absolute altitude value, an Inertial Measurement Unit providing inertial data, in particular accelerations and angular rates, and a barometer sensor providing a pressure measurement. The method includes processing the inertial data and the absolute position data to obtain two-dimensional position information, in particular longitude and latitude, and processing the pressure measurement and the absolute position data to obtain an altitude estimate.

The utility model discloses a high-precision low-altitude meteorological sensor calibration device, and relates to the field of sensor calibration. The air pressure calibrator comprises an air pressure calibrator main board, the upper surface of the air pressure calibrator main board comprises a micrometering valve, one end of the micrometering valve is connected with a universal joint, the other end of the universal joint is connected with a micrometering valve knob, the micrometering valve can be operated by rotating the micrometering valve knob, and a support is arranged at the lower end of the micrometering valve knob. According to the high-precision low-altitude meteorological sensor calibration device, the fine adjustment valve is arranged on the main board of the air pressure calibrator, and the universal joint is used for connecting the fine adjustment valve knob, so that an operator can conveniently operate the fine adjustment valve by rotating the knob, the flexibility and convenience of operation are greatly improved, and meanwhile, the operation efficiency is improved. The support at the lower end of the micro-metering valve knob can be horizontally placed when the micro-metering valve knob does not work, so that the adjusting precision is prevented from being influenced by shaking of the knob during operation, and the stability of micro-metering operation in the calibration process is ensured.

The invention relates to the field of numerical simulation optimization, in particular to a marine ranch-oriented storm surge disaster numerical simulation optimization method. The method comprises the steps that the boundary and the initial still water level of a marine ranch are obtained, the geographic space of the marine ranch is discretized into a rectangular grid layout, meteorological grid point data of the marine ranch are obtained, the total water level increment is calculated through a wind pressure wind field physical driving water level increment calculation algorithm, and the updated water level is obtained; and based on the updated water level, introducing a similarity weight mechanism of storm path projection, performing local enhancement correction on a water level field in storm surge simulation to obtain a water level after weight correction, and outputting a water level spatial distribution map. The problem that most of traditional storm surge disaster numerical simulation optimization methods neglect the dynamic adjustment effect of wind speed changes on sea surface roughness and wind resistance is solved; the effect of'inverted barometer 'is neglected, and air pressure change cannot be dynamically responded; and the regulation and control effect of geographic space factors on the simulated water level field cannot be accurately reflected.

The invention provides a measurement height correction method and device based on double barometer dynamic compensation, and relates to the technical field of height measurement, and the method comprises the steps: setting an air pressure integration module which comprises a plurality of first barometers and second barometers; when a first operation user performs height operation, the relative position is detected in real time, a reference first barometer corresponding to a second barometer is determined, a double-barometer compensation group is constructed according to the reference first barometer and the second barometer, and measurement height correction is performed on the double-barometer compensation group through a differential pressure-height weighted fusion algorithm. And outputting a measurement height correction result. The technical problem that the height measurement error is large due to the fact that most of existing barometers depend on barometers at fixed points to conduct comparison measurement correction and lack of an intermediate verification link in the prior art is solved, the multiple barometers are arranged at different known heights, the matched reference barometers are determined to conduct multi-source compensation correction, and the measurement accuracy is improved. And the accuracy of height measurement is improved.

The invention discloses a motion analysis system and method based on boot-mounted multi-sensor fusion, and relates to the technical field of motion analysis. Comprising a sensor module, the sensor module serves as a data acquisition end, and the sensor module comprises an inertial measurement unit which comprises a three-axis gyroscope and a three-axis accelerometer and is used for measuring the angular velocity and the acceleration of foot equipment in a three-dimensional space in real time; the distance sensing unit adopts an active detection technology, and adopts one or more of flight time laser ranging, ultrasonic ranging or millimeter wave radar to be matched; and the barometer is used for measuring the ambient atmospheric pressure, estimating the relative change of the height through the change of the atmospheric pressure, and providing auxiliary information for height estimation. The device is convenient to mount, is directly fixed to existing foot equipment based on modular design, and does not affect the sports performance; the posture precision is high, foot actions are directly measured, and the posture error is controlled within 3 degrees in combination with distance constraint.

The invention discloses a control method for safe landing of an unmanned aerial vehicle in a barometer data abnormal state, and relates to an unmanned aerial vehicle barometer fixed-height control algorithm based on a double-ring cascade PID (Proportion Integration Differentiation) with an outer ring as a height ring and an inner ring as a speed ring. The height measurement value of the height ring and the speed measurement value of the speed ring are fusion height H fusion and fusion speed V fusion which are obtained by taking the relative height H, measured by a barometer, of the unmanned aerial vehicle as an observation value and fusing IMU data of the unmanned aerial vehicle through a Kalman filtering algorithm respectively; the control method is not easily influenced by fluctuation of the barometer, the accelerator of the unmanned aerial vehicle can be more stably and linearly controlled, the possibility of full-amplitude fluctuation of the accelerator is reduced, then the stability and robustness of landing of the unmanned aerial vehicle are improved, the problem that the target speed cannot be reached due to large-amplitude up and down lifting of the unmanned aerial vehicle and light load of the unmanned aerial vehicle is solved, and the unmanned aerial vehicle landing speed is improved. The control method can be unified in the automatic landing mode to simplify the control logic and improve the control robustness.

The utility model relates to the technical field of barometers, and discloses a barometer with an installation protection device, which comprises an air pipe, the side wall of the air pipe is fixedly provided with one end of a connecting pipe, the other end of the connecting pipe is fixedly provided with one end of a protection box, and the other end of the protection box is rotatably provided with a box door. An electronic barometer is arranged in the protection box, and an air pressure assembly is arranged in the protection box. According to the barometer with the installation protection device, in order to prevent an electronic barometer from influencing work when the working state is abnormal, the barometer is provided with an air pressure assembly, when the pressure intensity changes, an elastic pipe is extruded by the pressure intensity, the input pipe, the elastic pipe, a connecting rod, a driven rod, a first gear, a second gear and a pointer are matched, and the pressure intensity change amplitude is displayed on a dial plate; and a worker observes to know the air pressure condition, so that the influence caused by the damage of electronic components is better prevented, and the working efficiency is improved.

A shipborne meteorological observation device disclosed by the present invention comprises a supporting seat and a meteorological sensor, the meteorological sensor is arranged above the supporting seat, the meteorological sensor comprises an anemometer, a temperature and humidity sensor and a barometer, and a ventilation shutter cover is arranged outside the temperature and humidity sensor. A wind power adjusting assembly is further arranged between the ventilation shutter cover and the temperature and humidity sensor, the wind power adjusting assembly comprises an adjusting cover, the adjusting cover comprises an upper fixing ring and a lower fixing ring, a plurality of fixed arc-shaped rods are fixedly arranged between the upper fixing ring and the lower fixing ring at intervals, and a plurality of movable arc-shaped rods are slidably arranged between the upper fixing ring and the lower fixing ring; wind shielding cloth is arranged between the fixed arc-shaped rod and the movable arc-shaped rod. The reading accuracy of the temperature and humidity sensor can be improved.

This invention discloses a barometer error calibration method based on a pressure field, comprising the following steps: S1, performing drift suppression and cross-consistency calibration on the original height observation data of the tag barometer and anchor barometer to obtain the cross-calibration height of each anchor barometer; S2, constructing a time-varying pressure field model for each anchor barometer to solve for the pressure plane value at the horizontal position of the tag barometer, thereby obtaining the residual between the drift compensation height of the tag barometer and the pressure plane; S3, estimating and updating the height offset of the tag barometer online based on the time-varying pressure field model to obtain the tag barometer pressure height correction amount; S4, using the tag barometer pressure height correction amount to correct and update the drift-suppressed tag barometer pressure height, and outputting the elevation result. This method can effectively suppress errors caused by barometer drift and changes in ambient pressure, improve the stability and accuracy of elevation estimation, and has good robustness and adaptability.

The invention belongs to the technical field of pressure detection, and particularly relates to a pressure detection device of a steam energy storage tank, which comprises a mounting plate, a pressure guide pipe communicated with the steam energy storage tank is fixedly inserted and sleeved on the mounting plate, a barometer is fixedly arranged at the upper end of the pressure guide pipe, and the pressure guide pipe and the barometer are detachably connected through a flange connecting assembly. The device further comprises an adjustable damping mechanism, a sealing keeping mechanism, a steam charging and discharging dynamic feedback mechanism, a pressure change follow-up regulation and control mechanism, a pressure speed change follow-up regulation and control mechanism and a PLC. The pressure change speed is determined based on the steam charging and discharging speed in the steam energy storage tank, the damping coefficient is adjusted, the barometer installation sealing performance is optimized according to pressure and temperature changes caused by steam charging and discharging, the pressure transmission speed and stability can be balanced, it is ensured that the barometer installation sealing performance is always in the optimal state, and the service life of the barometer is prolonged. Therefore, damage to monitoring accuracy of the barometer and leakage risks caused by rapid pressure change are avoided.

The embodiment of the invention discloses a blockage detection method for a barometer, and the method comprises the steps: obtaining the barometer which is provided with a heating part; starting the heating part to a heating temperature, and collecting output data of the barometer within a preset time; the heating part is closed, P1 = P Max-P Min is calculated, P Max is the maximum value of the output data of the barometer within the preset time, and P Min is the minimum value of the output data of the barometer within the preset time; the collection and calculation steps are repeated at least twice, P2, P3... Pn are obtained, and n is a positive integer; and if more than half of P1, P2, P3... Pn is greater than a first preset threshold value, judging that the air hole of the barometer is blocked. Therefore, the built-in heating part of the barometer can be used for actively applying temperature excitation, detection can be completed by analyzing air pressure response fluctuation, and physical contact with an air hole or interruption of normal work of the barometer is not needed in the whole process.

The application provides a method for mixed height measurement by using an inertial navigation device, a barometer and GPS, three heights are jointly input into a three-in-one Kalman filter to obtain Kalman filter heights between each other, and the output height of the Kalman filter is obtained by averaging; then, the output height of the Kalman filter is used to obtain three height errors by subtracting inertial height, barometric height and GPS height, and then the prior variance data of the Kalman filter is adjusted according to the errors; the observation variance data of the Kalman filter is adjusted according to the integral values of the three height errors; finally, the inertial comprehensive error is formed by comparing the three-in-one height comprehensive signal with the inertial compensation height, then the non-linear transformation is carried out, and the feedback compensation is carried out to the inertial acceleration and inertial velocity signals to carry out the correction compensation integration, and the inertial compensation height signal is formed as the final output of the three-in-one combined Kalman filter height measurement method.

This invention provides a barometer-assisted GNSS / INS positioning quality control method and system for urban environments. By constructing a joint altitude reference benchmark for INS and barometers, the strong coupling dependency between GNSS and INS is broken. A multi-level closed-loop quality control mechanism is used to identify and suppress anomalies in raw GNSS observations, ambiguity resolution, and the final positioning results. Sensor error correction maintains the long-term stability of the auxiliary source. Precisely embedding barometer vertical constraints within a loosely coupled framework significantly enhances the observability of the altitude direction. Even in scenarios with severely degraded GNSS signals, such as urban canyons, under overpasses, and tunnel entrances / exits, this invention can still provide continuous and robust lane-level navigation results, meeting the stringent application requirements for high-reliability and high-precision positioning in autonomous vehicles, intelligent connected terminals, and UAV inspection platforms.

The application discloses a weather station pose monitoring system and method based on GNSS and IMU, and the system comprises a positioning and timing module GNSS, an attitude sensing unit IMU and a main control unit; the IMU simultaneously serves as a low-power trigger, and only the IMU is running when the system is in a dormant state; when it is detected that the inclination exceeds a preset threshold, the IMU wakes up other units; the main control unit integrates an edge computing module, a sliding window with a time length not less than 3 times of a maximum sampling period of a sensor is set, a space-time constraint error model of the GNSS, the IMU and a barometer is constructed, the IMU cumulative drift and the barometer temperature drift are iteratively corrected through error feedback, fusion confidence is determined based on error reciprocals and is weighted, and finally multi-source data is fused to generate a pose result in the window. The precision of pose monitoring is improved.

The utility model belongs to the field of barometers, and particularly relates to a barometer with a quick-release structure, which comprises a barometer main body and a mounting rack, the outer wall of the barometer main body is fixedly connected with a positioning insertion block, the mounting rack is provided with a quick-release assembly, the quick-release assembly comprises a quick-release seat, the outer wall of the mounting rack is fixedly connected with a quick-release seat, and the quick-release seat is fixedly connected with the positioning insertion block. An inserting groove is formed in the quick release seat, and the inner wall of the quick release seat is in sliding connection with a curved surface sliding block. According to the barometer with the quick release structure, the pressure plate is pressed downwards, so that related parts can be easily pushed to enable the curved surface slide block to leave the insertion groove, at the moment, the positioning insertion block of the barometer main body can be conveniently inserted into the insertion groove, and after the pressure plate is loosened, the installation can be completed by using the reset of the spring. The whole process is simple and rapid to operate, compared with a traditional installation mode, installation time and labor cost are greatly saved, and the air pressure gauge is particularly suitable for working scenes where air pressure gauges need to be installed and replaced frequently.

The invention relates to the technical field of mooring unmanned aerial vehicles, and discloses a method and system for correcting the height of a barometer of a mooring unmanned aerial vehicle, and the method comprises the following steps: collecting initial data, and calculating the initial height of a vehicle-mounted device and the ground; according to the airborne initial height and the ground initial height, a ground initial air pressure height reference value is obtained through calculation; receiving an air pressure value and a temperature value of the ground barometer, and calculating the measurement height of the ground barometer; calculating a height correction coefficient according to the initial ground height and the height measured by the ground barometer; and measuring the height through a computer-mounted barometer, and calculating the corrected barometric altitude of the unmanned aerial vehicle in combination with the height correction parameters. According to the method, the ground initial barometric altitude reference value is calculated and stored before the unmanned aerial vehicle takes off, and the real-time altitude correction coefficient is calculated by using the real-time data of the ground barometer in the flight process. The correction mechanism based on the ground fixed reference effectively compensates height measurement drift of the airborne barometer caused by long-time slow change of the atmospheric environment.

The invention discloses portable automatic meteorological station equipment based on six meteorological elements, and relates to the technical field of meteorological monitoring, and the equipment comprises a backpack type waterproof packaging box, and an MEMS sensor, a tipping bucket rain gauge, an integrated mainboard and a structural support which are disposed in the backpack type waterproof packaging box. The MEMS sensor comprises a silicon piezoresistive barometer, a digital temperature and humidity sensor and an ultrasonic wind speed and direction sensor; a data acquisition unit and a wireless communication unit which are connected with each other are integrated on the integrated mainboard; the data acquisition unit is used for acquiring data of the MEMS sensor and the tipping bucket rain gauge; the structure support is used for erecting the MEMS sensor, the tipping bucket rain gauge and the integrated mainboard at an observation site. According to the invention, portable flexible automatic monitoring in specific scenes such as field temporary scientific investigation and temporary meteorological observation along a power transmission line can be satisfied.