2results about How to "Improve troubleshooting capabilities" patented technology

The utility model discloses a kind of control systems of soft ground cleaning robot, including main control module, CAN bus drive unit, motor drive unit and power module;The CAN bus drive unit is connected by CAN transceiver chip CAN communication interface of the main control module;The motor drive unit is composed of opto-coupler isolation circuit and H bridge drive circuit;The opto-coupler isolation circuit includes opto-coupler chip, and the input end of opto-coupler chip is connected with the PWM signal end output by main control module;The H bridge drive circuit includes half bridge drive chip and two power MOSFET tubes;The output end of opto-coupler chip is connected with the input end of half bridge drive chip, and the output end of half bridge drive chip is connected with the gate of power MOSFET tube, and the source and drain of two power MOSFET tubes constitute H bridge upper and lower bridge arms, and the midpoint of bridge arm is connected direct current brush motor.The utility model can realize multi-motor precision control, and have the advantages of low complexity, high integration.

The application provides a kind of distribution terminal single-phase ground fault research and judgment capability test method and system based on true type test platform, builds encrypted wireless communication environment and terminal hardware detection system, constructs the true type test field of adjustable network frame and grounding mode and selects overhead-cable hybrid test line;In the middle section, end and overhead-cable transition node of line, set up collaborative fault point, trigger multiple types of single-phase ground fault through fault simulation device, after collecting terminal response data, by master station according to the quantitative evaluation of differentiated scoring and multidimensional ranking rule realizes the quantitative evaluation of research and judgment capability.The application also constructs the test system containing six functional units, realizes the systematic and standardized test of distribution terminal single-phase ground fault research and judgment performance under highly realistic environment, solves the problems that traditional test and field working condition are disconnected, single in assessment dimension and lack of objectivity in evaluation, provides reliable basis for equipment selection, algorithm optimization and distribution network fault handling capability improvement.