Abstract: Disclosed are a device and method for detecting defects of a high-voltage cable cross-bonded grounding system. The method comprises: selecting a protective grounding box of a cross-bonded grounding system, respectively connecting a signal excitation coupler to A-phase, B-phase and C-phase coaxial cables of the protective grounding box, selecting a stable signal with a frequency different from a power frequency or a field interference frequency, and testing effective current values and phases responded by the A-phase, B-phase and C-phase coaxial cables when the stable signal with the frequency F1 is injected into the A-phase, B-phase and C-phase coaxial cables of the protective grounding box in a coupled manner; and obtaining resistances and inductances of branch circuits of the cable cross-bonded grounding system by calculation according to measurement data, and determining if the cable cross-bonded grounding system has a connection defect.

Abstract: A locating method and apparatus for a robot, and a computer-readable storage medium. The locating method includes: determining current possible pose information of the robot according to current ranging data collected by a ranging unit; determining, according to first current image data collected by an image collection unit, first historical image data matching with the first current image data, the first historical image data being collected by the image collection unit at a historical moment; obtaining first historical pose information of the robot at a moment when the first historical image data is collected; and in response to quantity of the current possible pose information being at least two pieces, matching the first historical pose information with each piece of the current possible pose information, and using matched current possible pose information as current target pose information.

Abstract: A combined platform for testing fireproof materials for cables includes a main frame for providing operating space; an air circulation system including a fresh air supply unit for supplying fresh air into the operating space and an exhaust gas treatment unit for treating the gas in the operating space under set conditions; an open flame system for providing an open flame for testing cables; a water circulation system for supplying water at least to the exhaust gas treatment unit and the operating space; and a control system for collecting at least the temperature and gas concentration in the operating space, and performing process control based on the collected results. The actual working conditions of scenarios such as fire-resistant cable tunnels and fire-resistant cable trenches can be simulated, and multiple tests such as combustion performance test and physical and chemical performance test can be carried out under various working conditions.

Abstract: Embodiments of the present disclosure provide a method for controlling an automatic cleaning device, an automatic cleaning device, and a non-transitory storage medium. The method includes: obtaining a position of a working region of the automatic cleaning device; obtaining a reference data associated with the working region based on the position of the working region; obtaining a current environment parameter of the working region; comparing the current environment parameter with the reference data to generate a comparing result; and controlling the automatic cleaning device based on the comparison result.

Abstract: A charging pile, a method and device for recognizing the charging pile are provided. The charging pile may include: a pile body having a side surface; a power interface provided on the side surface of the pile body to supply power for the autonomous cleaning device; an identification structure arranged on the side surface of the pile body to enable the autonomous cleaning device to recognize a position of the power interface and comprising a plurality of identification elements, each of the plurality of identification elements comprising at least one convex and at least one concave; wherein a retroreflection coefficient of any one of the at least one convex and the at least one concave is smaller than that of the other one of the at least one convex and the at least one concave and sufficient to form a retroreflected light recognizable by the autonomous cleaning device; and wherein at least one of the plurality of identification elements comprises a convex and a concave having mismatched specifications.

Abstract: A charging pile, a method and device for recognizing the charging pile are provided. The charging pile may include: a pile body having a side surface; a power interface provided on the side surface of the pile body to supply power for the autonomous cleaning device; an identification structure arranged on the side surface of the pile body to enable the autonomous cleaning device to recognize a position of the power interface and comprising a plurality of identification elements, each of the plurality of identification elements comprising at least one convex and at least one concave; wherein a retroreflection coefficient of any one of the at least one convex and the at least one concave is smaller than that of the other one of the at least one convex and the at least one concave and sufficient to form a retroreflected light recognizable by the autonomous cleaning device; and wherein at least one of the plurality of identification elements comprises a convex and a concave having mismatched specifications.