Please select the most similar patent number from A, B, C and D. Which number is?
Provided is a remote control. The remote control comprises: a main body, an antenna assembly and a connection assembly, wherein the antenna assembly is movably connected to the main body by means of the connection assembly, such that the antenna assembly can be switched between an accommodated state and a first unfolded state; when in the accommodated state, the antenna assembly is located at a first position relative to the main body, and when in the first unfolded state, the antenna assembly is located at a second position relative to the main body; and when the antenna assembly moves to a first predetermined position relative to the main body, the connection assembly can automatically drive the antenna assembly to move to the first position or the second position. The embodiments of the present application have the beneficial effects of switching of an antenna assembly state being more convenient and quicker, and the antenna assembly being able to maintain the current state and being able to be automatically reset after being accidentally touched.
A: Embodiments of the invention disclose an antenna, a peripheral circuit, an antenna system, and a signal processing method. The method of the embodiments of the invention comprises: providing a first layer antenna, a second layer antenna, a first probe, a second probe, a first connector, and a second connector, wherein main bodies of the first layer antenna and the second layer antenna are respectively attached with a circular micro-strip patch, and the circular micro-strip patch attached to the first layer antenna is provided therein with a first feed network and a second feed network; connecting the first layer antenna to the first probe and the second probe via the first feed network and the second feed network; and connecting the first layer antenna to the first connector and the second connector, wherein the connection positions of the first connector and the first probe with the first layer antenna correspond to each other, and the connection positions of the second connector and the second probe with the first layer antenna correspond to each other.
B: An antenna assembly, a remote controller (1000) and a remote control system (10). A drawing structure (300) of the remote controller (1000) is movably connected to a device body (100), so as to adjust the distance between an antenna main body (200) and the device body (100); one end of a feeder line (400) is electrically connected to the antenna main body (200), and the other end of the feeder line is electrically connected to an electronic device; and in the process in which the antenna main body (200) is close to or far away from the device body (100), the extension length of the feeder line (400) relative to a line body storage structure (500) is changed.
C: The invention provides a radar and a movable apparatus having same, wherein the radar comprises: a base; an antenna assembly disposed above the base, the antenna assembly being rotatable around a rotating shaft relative to the base; a driving mechanism disposed on the base, a rotating component of the driving mechanism being fixedly connected to the antenna assembly to drive the antenna assembly to rotate around the rotating shaft; and a counter-weight member disposed on the antenna assembly such that the center of gravity of the antenna assembly is close to the rotating shaft, wherein when the rotating component of the driving mechanism drives the antenna assembly to rotate, the counter-weight member rotates together with the antenna assembly, so that the antenna assembly stably rotates around the rotating shaft. By arranging the counter-weight member on the antenna assembly, the center of gravity of the antenna assembly is close to a certain rotating shaft, so that the antenna assembly always rotates around the rotating shaft, thereby ensuring the balance of the rotation of the antenna assembly and avoiding the influence of the imbalance of the rotation of the antenna assembly on the orientation diagram thereof, such that the performance of the antenna assembly is optimized.
D: Disclosed in the embodiments of the present application is a control method, used for a first device; said first device has at least two antennas; each antenna is connected to an independent RF module; said method comprises: by means of said at least two antennas, the first device receiving a first RF signal sent by a second device; by means of analyzing data related to said first RF signal, determining position information of the first device relative to the second device; on the basis of said relative position information, controlling the first device to follow the second device, maintaining a preset positional relationship of the first device relative to the second device. The embodiments of the present application also disclose a control device used for a first device, a control device used for a second device, a control system, and a control method used for the second device.
Answer: B