Abstract: A method comprising: acquiring a predetermined policy, the predetermined policy being a policy of a wireless connection between a wireless probe and a host device; according to the predetermined policy, controlling the wireless probe to selectively connect to one host device from at least two host devices, each of the at least two host devices at least having a component for wirelessly connecting to the wireless probe; controlling the wireless probe to transmit ultrasonic waves to a target object and receive echoes based on the ultrasonic waves to obtain ultrasonic echo signals; and controlling the wireless probe or the host device connected to the wireless probe to process the ultrasonic echo signals to obtain target ultrasonic data of the target object, and displaying the target ultrasonic data by the host device connected to the wireless probe.

Abstract: A shareable battery pack for a portable ultrasonic apparatus, a trolley, a power supply system, and a portable ultrasonic system. The trolley can be connected to the portable ultrasonic apparatus and/or the shareable battery pack to supply power so as to extend operation time. Alternatively, the trolley is used to support the portable ultrasonic apparatus and/or the shareable battery pack without supplying power to extend operation time. In an embodiment, the shareable battery pack can be removed from the trolley, and then be fixedly connected to the portable ultrasonic apparatus to form an integral unit and serve as an external battery for the portable ultrasonic apparatus. Such design enables the portable ultrasonic apparatus to have extended operation time without relying on the trolley and requires only one shareable battery pack in special situations, thereby enhancing convenience of use.