A method for facilitating cooperation between humans and remote vehicles comprises creating image data, detecting humans within the image data, extracting gesture information from the image data, mapping the gesture information to a remote vehicle behavior, and activating the remote vehicle behavior. The corresponding secondary battery has a housing defining an accommodation chamber for accommodating a power generation portion, an opening portion formed in the housing, a stopper body closing the opening portion, and a coupling portion formed around the opening portion. The received satellite signals are processed into two separate frequency bands. This accurate low frequency output signal may be used to maintain long-term timing accuracy in host devices during sleep modes of operation. Driving information for each driver and each service route is analyzed based on the data recorded in the collected removable memory. By controlling the operational speed of the pump, the level of the separated liquid within the separator can be controlled without the need for control valves.