A system for signal transmission, comprising: a receiving device (140, 1200) configured to execute a forward transmission from a plurality of acquisition devices (130A,130B,130C,130D) to the receiving device (140,1200) and a reverse transmission from the receiving device (140, 1200) to the plurality of acquisition devices (130A,130B,130C,130D), wherein the receiving device (140,1200) includes: an obtaining module configured to receive, via a transmission medium, a composite multimedia signal in the forward transmission during a first time division, wherein the composite multimedia signal is encoded in a frame format, the frame format including an active zone and a blanking zone and the composite multimedia signal being associated with a plurality of multimedia signals acquired by the plurality of acquisition devices (130A,130B,130C,130D); a control module; and; a transmission module configured to transmit, via the transmission medium one or more control signals to one or more target acquisition devices (130A,130B,130C,130D) of the plurality of acquisition devices (130A,130B,130C,130D) in the reverse transmission during a second time division wherein the second time division corresponds to a predetermined section of the blanking zone and is within the first time division. a receiving device (140, 1200) configured to execute a forward transmission from a plurality of acquisition devices (130A,130B,130C,130D) to the receiving device (140,1200) and a reverse transmission from the receiving device (140, 1200) to the plurality of acquisition devices (130A,130B,130C,130D), wherein the receiving device (140,1200) includes: an obtaining module configured to receive, via a transmission medium, a composite multimedia signal in the forward transmission during a first time division, wherein the composite multimedia signal is encoded in a frame format, the frame format including an active zone and a blanking zone and the composite multimedia signal being associated with a plurality of multimedia signals acquired by the plurality of acquisition devices (130A,130B,130C,130D); a control module; and; a transmission module configured to transmit, via the transmission medium one or more control signals to one or more target acquisition devices (130A,130B,130C,130D) of the plurality of acquisition devices (130A,130B,130C,130D) in the reverse transmission during a second time division wherein the second time division corresponds to a predetermined section of the blanking zone and is within the first time division. an obtaining module configured to receive, via a transmission medium, a composite multimedia signal in the forward transmission during a first time division, wherein the composite multimedia signal is encoded in a frame format, the frame format including an active zone and a blanking zone and the composite multimedia signal being associated with a plurality of multimedia signals acquired by the plurality of acquisition devices (130A,130B,130C,130D); a control module; and; a transmission module configured to transmit, via the transmission medium one or more control signals to one or more target acquisition devices (130A,130B,130C,130D) of the plurality of acquisition devices (130A,130B,130C,130D) in the reverse transmission during a second time division wherein the second time division corresponds to a predetermined section of the blanking zone and is within the first time division.