Multi-protocol access device based on FPGA

The invention provides a multi-protocol access device based on a field programmable gate array (FPGA), which belongs to the field of internet of things systems, and comprises an interface layer, a protocol layer and a control layer, the interface layer is connected with an external radio frequency module, and a data packet is transmitted between the external radio frequency module and the protocol layer; the protocol layer performs effective load packaging and protocol abstraction on the data packet, transmits the data packet to the control layer, receives a feedback instruction of the control layer, processes the effective load after packaging and protocol abstraction into the data packet, and transmits the data packet to the interface layer; and the control layer transmits the effective data load to the processor, receives a processor control instruction and issues a feedback instruction to the protocol layer. Dynamic access and control of the radio frequency modules based on various communication protocols