Abstract: A power conversion circuit includes a switching network, a control circuit, a filter circuit, and a direct current side circuit; and the filter circuit includes a first power inductor, a common mode choke, a first differential mode filter capacitor, a first common mode filter capacitor, and a second common mode filter capacitor. The first power inductor includes a first winding and a second winding, and the common mode choke includes a third winding and a fourth winding; a first end of the first winding and a first end of the second winding are separately connected to the switching network, a second end of the first winding and a second end of the second winding are respectively connected to a first end of the third winding and a first end of the fourth winding.

Abstract: A LiDAR performance detection method, a device, and a computer storage medium are provided. The method includes: acquiring a target signal in a target monitoring mode within a blanking interval; determining a measurement value in the target monitoring mode based on the target signal in the target monitoring mode within the blanking interval; and determining that the transceiver module of the LiDAR is abnormal when the measurement value in the target monitoring mode is not within a preset range.

Abstract: The present application discloses an abnormal field of view recognition method and device, a storage medium, and a MEMS LiDAR. The method includes respectively adjusting angles of a galvanometer in an X axis and a Y axis when the MEMS LiDAR is started; acquiring echo data from scanning a window at the adjusted angles of the galvanometer in the X axis and the Y axis; acquiring distances, from the echo data, between an upper edge, a lower edge, a left edge, and a right edge of the window and the MEMS LiDAR; and determining whether a field of view of the galvanometer is abnormal or not based on the distances between the upper edge, the lower edge, the left edge, and the right edge of the window and the MEMS LiDAR.

Abstract: The present application discloses a LiDAR occlusion detection method and apparatus, a storage medium, and a LiDAR. The method includes: obtaining detected echo data, obtaining distance information of each point in the echo data, comparing the distance information with a preset distance range, and in response to the distance information being within the preset distance range, determining that the LiDAR is occluded. In the present application, it can be detected in real time whether the LiDAR is occluded, without affecting transmittance of the LiDAR or increasing manufacturing costs of the LiDAR.

Abstract: Embodiments of this application disclose a laser ranging method, apparatus, and LiDAR, and pertain to the ranging field. The method includes: emitting a ranging laser signal; receiving a reflected laser signal formed after the ranging laser signal is reflected by a target object; determining a first measured distance value based on a time difference between an emitting time of the ranging laser signal and a receiving time of the reflected laser signal; determining a second measured distance value of an internal signal link; and obtaining an actual distance value of the target object based on the first measured distance value and the second measured distance value. In the embodiments of this application, stability of the measured actual distance value of the target object can be ensured when an environmental factor changes. Impact of the environmental factor on the laser ranging is reduced, and precision of the laser ranging is improved.

Abstract: A pair of pliers including an upper jaw, a lower jaw, two handles, and a pivot. The upper jaw and the lower jaw combine to form a gripping jaw capable of opening and closing. The upper jaw is in the shape of an inner arc, and the lower jaw is in the shape of an outer arc. The inner arc includes a concave hole, and the outer arc includes a convex member corresponding to the concave hole. The two handles are integrated with the upper jaw and the lower jaw, respectively, and fixed via the pivot to form a cross connection.

Abstract: A pair of pliers including an upper jaw, a lower jaw, two handles, and a pivot. The upper jaw and the lower jaw combine to form a gripping jaw capable of opening and closing. The upper jaw is in the shape of an inner arc, and the lower jaw is in the shape of an outer arc. The inner arc includes a concave hole, and the outer arc includes a convex member corresponding to the concave hole. The two handles are integrated with the upper jaw and the lower jaw, respectively, and fixed via the pivot to form a cross connection.

Abstract: A combination of a thin-walled metal pipe and a joint, including the thin-walled metal pipe, the joint, a sealing ring, and a socket ring. One end of the metal pipe is pressed by a pair of pliers to form a boss. One end of the joint is provided with an opening including a female thread for receiving the metal pipe. A step is disposed at the bottom of the opening. The socket ring comprises male thread corresponding to the female thread. The sealing ring and the socket ring are sleeved on the metal pipe and are separated by the boss. When the socket ring is screwed down, the female thread and the male thread cooperate with each other tightly, so that the socket ring leans against the boss and extrudes the sealing ring to press the step at the bottom of the opening to form a sealed combination.