Algorithm A3. LRSC

Input: code; Dc; Dd; Obtain()//Get identification code information module { Get(code)$\to$Dc//Get Dc } Check()//Check module {    Get(Ds)//Get Ds    Verity(Dc)//Verify Dc } Renew()//Update identification code information module {    Addition(Dd)//Add the data of this link and update the QR code information } Storage()//Memory module {    Transfer(SDSC,VDSC)//Call SDSC,VDSC perform data upload }