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89 results about "Body orientation" patented technology

Pedestrian navigation device and pedestrian navigation method based on inertial sensor

The invention discloses a pedestrian navigation device based on an inertial sensor. The pedestrian navigation device comprises a microprocessor, a three-axis acceleration sensor, a three-axis gyroscope, a three-axis magnetometer and a wireless communication module, wherein the three-axis acceleration sensor, the three-axis gyroscope, the three-axis magnetometer and the wireless communication module are respectively connected with the microprocessor; the microprocessor is used for receiving data collected by the three-axis acceleration sensor, the three-axis gyroscope and the three-axis magnetometer and uploading the data to a PC (Personal Computer) through the wireless communication module. The invention further discloses a pedestrian navigation method based on the pedestrian navigation device. The pedestrian navigation method comprises a step stage detection algorithm, a foot and body orientation estimation algorithm and an extended Kalman filter algorithm. The complexity of calculation is greatly reduced while the accuracy is guaranteed, and a condition that the requirement of timeliness can be met is guaranteed without consuming a large amount of hardware power consumption in a practical environment.
Owner:JIANGSU TOYOU RES INST OF INFORMATION INTELLIGENCE & TECH

Device and a method for detecting the danger of a person drowning

A device and a method are disclosed for detecting the danger of a person drowning in a body of water. The device includes a breast belt and a life jacket. The breast belt has at least one physiological condition sensor affixed thereto while the life jacket has an expandable chamber connected to a compressed gas supply via an activating mechanism. As the compressed gas enters the expandable chamber, the life jacket increases in buoyancy. The life jacket also has a water contact sensor, a global positioning system device, first and second body orientation sensors, a transmitter which is capable of sending a signal to a remote receiver, and a control unit capable of receiving real time signals from each of the sensors and evaluating and comparing the real time signals against corresponding ranges of preset acceptable values to determine if the person wearing the life jacket is in danger of drowning. The control unit is capable of forwarding a signal to both the activating mechanism and to the transmitter when a signal from the water contact sensor indicates the person is in the water and the real time signals from the other sensors are outside of corresponding ranges of preset acceptable values. The signal to the activating mechanism opens the compressed gas supply while the signal to the transmitter is relayed to the remote receiver which sounds an audible alarm.
Owner:JUERGEN PULS

Vehicle, parking control method and device

The invention discloses a vehicle, a parking control method and device. The method comprises the following steps of obtaining the parking capacity data of a driver and the environmental information around the vehicle, controlling the vehicle to be parked into the current parking space when the current parking space is available according to the parking capability data and the environmental information, detecting the nearest distance between the vehicle and the surrounding obstacles in the process of controlling the vehicle to be parked in the current parking space, controlling a braking systemof the vehicle for braking and controlling a drive motor of the vehicle to output 0 torque according to the fact that a collision risk exists in the current trajectory and if the nearest distance equal to or less than the preset distance threshold. According to the method, by detecting the nearest distance between the vehicle and the surrounding obstacles in real time, the vehicle running trajectory is predicted according to the vehicle body orientation, steering and gear so as to predict the collision cut risk, the braking system is controlled timely to take the braking measures and controla power system to disconnect the power output, the occurrence of the collision cut is effectively avoid, and the safety and practicability of the vehicle are greatly improved.
Owner:BEIJING ELECTRIC VEHICLE

Super large-scale stope large-diameter, deep-hole and high-stage open stope subsequent backfilling mining method

The invention discloses a super large-scale stope large-diameter, deep-hole and high-stage open stope subsequent backfilling mining method, wherein the method comprises the following steps: (1) actualmining scheme: vertical ore body orientation of ore blocks is arranged, the ore blocks are divided into ore rooms and ore pillars, the ore rooms and the ore pillars are arranged at intervals, double-middle-section continuous actual mining is adopted to divide a stope into two middle sections, and an actual mining method of middle section drilling rock separation, double-middle section continuousore dropping, bottom ore drawing structure sharing and subsequent primary filling is adopted; (2) accurate mining; (3) patio cutting; (4) drilling rock blasting; (5) ore drawing; and (6) filling. Themethod has the beneficial effects the super-large-scale stope has the advantages of small mining and cutting engineering quantity and large stope mining quantity; the stope is divided into two middlesections, rock drilling is performed, reduction of the technical difficulty of deep-hole rock drilling in the stope is facilitated, and the rock drilling efficiency of the stope is improved; with adopting of double-middle-section continuous ore dropping and bottom mine drawing structure sharing, the method has the advantages of increasing the production capacity of a single stope, reducing the mining-cutting cost and improving the actual mining efficiency and the like.
Owner:ANHUI TONGGUAN (LUJIANG) MINING CO LTD

Water survival system and a method for detecting the danger of a person drowning

A water survival system and a method are disclosed for detecting the danger of a person drowning in a body of water. The water survival system includes a breast belt and a life jacket. The breast belt has at least one physiological condition sensor affixed thereto while the life jacket has an expandable chamber connected to a compressed gas supply via an activating mechanism. As the compressed gas enters the expandable chamber, the life jacket increases in buoyancy. The life jacket also has a water contact sensor, a global positioning system device, first and second body orientation sensors, a transmitter which is capable of sending a signal to a remote receiver, and a control unit capable of receiving real time signals from each of the sensors and evaluating and comparing the real time signals against corresponding ranges of preset acceptable values to determine if the person wearing the life jacket is in danger of drowning. The control unit is capable of forwarding a signal to both the activating mechanism and to the transmitter when a signal from the water contact sensor indicates the person is in the water and the real time signals from the other sensors are outside of corresponding ranges of preset acceptable values. The signal to the activating mechanism opens the compressed gas supply while the signal to the transmitter is relayed to the remote receiver which sounds an audible alarm.
Owner:JUERGEN PULS

Method and device for view angle adjustment in virtual environment, equipment and readable storage medium

The invention discloses a method and device for view angle adjustment in a virtual environment, equipment and a readable storage medium, and relates to the field of virtual environments. The method comprises the following steps ofdisplaying a first picture generated byobserving the virtual environment in a first view angle direction, wherein a virtual object has a body orientation in the virtual environment; receiving triggering operation on a view angle adjustment control; acquiring movement data of a terminal; adjusting the first view angle direction to a second view angle direction according to the movement data; and displaying a second picture generated by observing the virtual environment in the second view angle direction, wherein the body orientation of the virtual object is unchanged. By arranging the view angle adjustment control, when the triggering operation of the view angle adjustment control is received, the movement data of the terminal is acquired, the view angle direction of observation is adjusted according to the movement data, and the orientation of the virtual object is not changed, so that a user does not shield the picture generated by observing the virtual environment due to the adjustment operation of observation in other view angle directions, and the accuracy and efficiency of observing the virtual environment are improved.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Actual measurement device and method of ultrahigh earth-rock dam internal 3D deformation

The invention discloses an actual measurement device and method of ultrahigh earth-rock dam internal 3D deformation. Multi-edged stainless steel plate is buried in some parts that need to be monitored in internal dam, and a vector line body is anchored in the center of the stainless steel plate. The downstream of the line body monitoring facility installs in a wedge-shaped sectional view room inserted in the downstream surface of the dam. A GNSS receiving antenna is installed in the roof and a two-axis inclinometer is installed in four corners of baseboard to acquire 6D shift of the house. The upper wall of the house is reserved for the wide seam for introducing the vector line body that tensions by a fixed pulley and a weight. The angle is measured by the line body orientation measurement device. The line body axial elongation is measured by coaxial swirling potentiometer type displacement meter in a fixed pulley and axial distribution temperature correction is considered. The internal dam 3D deformation can be gained by combining a sensor measurement value and a level-3 coordinate. The device and method has the advantages of high measurement accuracy, good stability and high reliability.
Owner:NANJING AUTOMATION INST OF WATER CONSERVANCY & HYDROLOGY MINIST OF WATER RESOURCES +1
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