Data sending method and device, electronic equipment and computer program product

The invention provides a data sending method and device, electronic equipment and a computer program product. The data sending method comprises the following steps: acquiring injection data for controlling a target spacecraft; obtaining the current virtual channel information of a transmission channel between the pass-by-pass routing spacecraft and the control target spacecraft, wherein the current virtual channel information comprises a pass-by-pass mode between the pass-by-pass routing spacecraft and the control target spacecraft and docking port information currently mounted on the control target spacecraft; on the basis of the data format of the on-behalf routing spacecraft, the current virtual channel identifier and the injection data, generating on-behalf injection data; and sending the transmission-on-behalf injection data to the control target spacecraft through the transmission-on-behalf routing spacecraft. According to the method, the problem that in the prior art, when a substitute transmission mod