3results about How to "Avoid False Alarm Situations" patented technology

The application belongs to the technical field of new energy, and particularly relates to a new energy vehicle driving loss monitoring system and a control method. The method obtains the switch state of a loss switch of a new energy vehicle. The switch state of the loss switch is a first switch state when the loss switch is operated by a driver, and is a second switch state otherwise. The first switch state is opposite to the second switch state. When the switch state of the loss switch is the second switch state and the second switch state lasts for a first time, the driving state of the driver is a driving loss state. If the driving state of the driver is the driving loss state, an alarm information is transmitted. Since the monitoring process is based on the loss switch signal, the monitoring process is simple, and the monitoring efficiency is high. Moreover, the cost of the loss switch is greatly reduced compared with a camera.

The present invention provides a radar-based kick signal recognition method, radar, storage medium and automobile, the method comprising: obtaining point cloud information of echo signals; for each frame of point cloud, calculating the feature mean of the points in the frame of point cloud whose distance dimension features meet preset conditions, and storing it in a feature mean matrix; dividing the detection area of ​​the radar in the angle dimension into grids, and determining the centroid position according to the angle range of each grid and the angle dimension feature mean of each frame of point cloud; if the centroid position is located in the detection area and the speed dimension feature mean of each frame of point cloud is located in the preset speed range, extracting the distance dimension feature mean of each frame of point cloud in the feature mean matrix to obtain a distance dimension array; judging whether a kick target is detected according to the distance dimension array. Through the above scheme, the present application can comprehensively identify kick signals according to the angle dimension features, speed dimension features and distance dimension features of the point cloud information, avoid false alarms, and improve the recognition accuracy of kick signals.

The application discloses a power special safety isolation fence for preventing mistaken entry into a live area, relates to the technical field of power protection isolation and smart grid, and is characterized in that a plurality of middle convex counter clamping plates are equidistantly arranged between two fixed support frames, a plurality of middle convex joint plates are equidistantly arranged between the two fixed support frames, a developing torsion spring is welded at the middle of one end of the plurality of middle convex counter clamping plates and the plurality of middle convex joint plates, joint torsion springs are welded at both sides of the one end of the plurality of middle convex counter clamping plates and the plurality of middle convex joint plates, and a multi-hole middle limiting plate is clamped at one end of the developing torsion spring. The fence is adjusted by itself, and a warning linkage is cooperated with an outward expansion component, so that the distance of protection is expanded without increasing the number of fences, the actual protection cost is reduced, a person who breaks in is warned by cooperating with a contact alarm component and an environment exploration component, and a background staff member is fed back in time, so that the mistaken entry into a live environment is avoided, and the actual isolation protection effect is improved.