Aiming at the problem that some hospitals have different data transmission and communication modes

resulting in many types of data formats

that affect data receiving and processing

and at the same time

data transmission security has defects.A variety of communication modes

such as WiFi

LoRa

RS485 and USB

are designed in the sensing node to encrypt the data through elliptic curve cryptography(ECC)algorithm encryption and upload it to the fog node for receiving and fusion processing of multi-source heterogeneous network data

store it in the SQLite database and transmit it to the Ali cloud server.The test results show that the multi-communication sensing node device can upload data to the fog node

and the fog node can realize the functions of heterogeneous network data fusion processing

analysis

display

storage and forwarding

which saves network bandwidth

and ECC algorithm encryption ensures the security of data transmission.