6 results about "Step count" patented technology

The invention discloses a method and a system for accelerometer and gyroscope- based step counter for virtual reality navigation The method (300) includes capturing (302) a movement data of a user (106) wearing a head mounted display (HMD) device (102), filtering (304) the movement data captured using a sensor (206) to attenuate a noise generated along with the movement data to get a filtered data and analysing (306) the filtered data to determine if the filtered data is within a predefined threshold. The method further includes calculating (308) a step count if the filtered data is within the predefined threshold and increasing (310) a virtual step based on the step count calculated to mirror a real-world movement of the user (106) in a virtual environment.

This invention discloses an indoor positioning method based on LTE signal fingerprint matching and nearest neighbor observations constrained by PDR (Progressive Directional Recognition), belonging to the field of indoor navigation and positioning technology. The method first performs step count detection, step length estimation, and heading estimation based on MEMS sensor output to obtain PDR positioning results. Then, it uses the PDR positioning results and an indoor map to estimate LTE signal propagation model parameters online, quickly constructing a fingerprint database, and obtaining location observations through fingerprint matching. Simultaneously, it utilizes the peak variation pattern of the LTE signal RSRP (Regressive Range Recognition Point) to identify antenna positions using peak detection and threshold constraints, extracting nearest neighbor position, step length, and heading observations. Finally, it employs unscented Kalman filtering to fuse the PDR results and the aforementioned observations in different scenarios. This invention requires no prior data, can adapt to changes in environment and equipment, and combines low cost with high accuracy, making it suitable for indoor pedestrian positioning.

This disclosure relates to methods for measuring one or more physiological signals while the user is engaged in a predetermined activity. Exemplary predetermined activities can include activities such as walking, climbing stairs, biking, and the like. The physiological measurements can include, but are not limited to, heart rate signals. The physiological measurements may be affected by the predetermined activity, so the system may be configured to employ one or more criteria prior to measuring physiological information to minimize the effects. The one or more criteria can include, but are not limited to, an inter-sampling waiting time, continuous motion criteria, predetermined activity criteria, a post-physiological measurement amount of time, and a confidence value. The continuous motion criteria can be based on the type of predetermined activity. For example, walking may have walking state criteria and a step count criteria.

To provide a monitoring device for a passenger conveyor step, enabling more assured determination of the presence or absence of damage of each moving step of a passenger conveyor.SOLUTION: A monitoring device for passenger conveyor step 100 according to the present disclosure is installed in a machine room 20 of an escalator, and comprises an imaging apparatus 110, an illuminating device 111 that illuminates an imaging range, and a processing device 120, the processing device 120 has a processing unit capable of determining the presence or absence of damage of each step 4 on the basis of image data of each step 4 obtained from imaging data captured by the imaging apparatus 110, and the processing unit performs binarization processing on the image data to generate inspection data, and determines the presence or absence of damage of each step on the basis of the inspection data.SELECTED DRAWING: Figure 4

This application discloses a step counting calibration method, apparatus, and electronic device. The method includes: acquiring cadence data and step count data; continuously monitoring whether the cadence has entered a stable state based on the cadence data; determining a calibration time window when the duration of the stable cadence reaches a first preset duration; calculating a reference step count within the calibration time window based on the cadence data; calculating the original step count within the calibration time window based on the step count data; and performing step counting calibration based on the difference between the reference step count and the original step count. This solution can effectively improve the accuracy of step counting statistics in practical applications.

The utility model relates to sensor technical field, especially step counting sensor circuit structure, including main control module, motion sensing circuit, dynamic storage module and power management unit, motion sensing circuit includes inertia measurement unit and the interrupt signal output end for awakening main control module under the working condition that connect in main control module data input end, the slice selection end electricity of dynamic storage module is connected in the interrupt signal output end of motion sensing circuit, the power management unit is equipped with charging circuit and is used for the linear voltage stabilizing unit of main control module, motion sensing circuit, dynamic storage module stable power supply, the utility model aims at reducing circuit power consumption, improves the continuous working time to improve data storage extension ability.