A system for an autonomous vehicle, comprising: a master computing unit configured to generate a control signal for a vehicle chassis control system of the autonomous vehicle at least partially based on environmental information around the autonomous vehicle to control operations of the autonomous vehicle; a slave computing unit communicatively coupled to the master computing unit and configured to generate the control signal for the vehicle chassis control system of the autonomous vehicle at least partially based on the environmental information around the autonomous vehicle to control the operations of the autonomous vehicle in response to detecting a failure of the master computing unit; at least one lidar (116, 118) configured to acquire the environmental information around the autonomous vehicle; a switch communicatively coupled to the at least one lidar, the master computing unit, and the slave computing unit, and configured to provide the environmental information to the master computing unit and the slave computing unit for controlling the autonomous vehicle; and a plurality of independently operating positioning devices (112, 114) communicatively coupled to the switch, and configured to acquire positioning information of the autonomous vehicle and send the positioning information to the switch, wherein a first positioning device in the plurality of positioning devices (112, 114) has better performance than a second positioning device in the plurality of positioning devices (112, 114), and the second positioning device provides positioning service only when the first positioning device fails; wherein the switch is further configured to send the positioning information to the master computing unit and the slave computing unit. a master computing unit configured to generate a control signal for a vehicle chassis control system of the autonomous vehicle at least partially based on environmental information around the autonomous vehicle to control operations of the autonomous vehicle; a slave computing unit communicatively coupled to the master computing unit and configured to generate the control signal for the vehicle chassis control system of the autonomous vehicle at least partially based on the environmental information around the autonomous vehicle to control the operations of the autonomous vehicle in response to detecting a failure of the master computing unit; at least one lidar (116, 118) configured to acquire the environmental information around the autonomous vehicle; a switch communicatively coupled to the at least one lidar, the master computing unit, and the slave computing unit, and configured to provide the environmental information to the master computing unit and the slave computing unit for controlling the autonomous vehicle; and a plurality of independently operating positioning devices (112, 114) communicatively coupled to the switch, and configured to acquire positioning information of the autonomous vehicle and send the positioning information to the switch, wherein a first positioning device in the plurality of positioning devices (112, 114) has better performance than a second positioning device in the plurality of positioning devices (112, 114), and the second positioning device provides positioning service only when the first positioning device fails; wherein the switch is further configured to send the positioning information to the master computing unit and the slave computing unit.