Sensor Verification – VeChain ToolChain® Help Center

Result Code

Code	Message
200	Success
201	Oprerator time out
2002	Parameter error
2003	Server error
2004	Chip output error
2005	No latitude and longitude information
401	Chip loses connection
60001	Parameter is null
200000091	User Cancel

Every time you read data through nfc, you need to open NFC first, then issue an instruction to read the data (you can issue multiple commands) and then close NFC.


  //open nfc
  VeChainNFCSDK.openNFC()

  // send command
  // ...  Can send multiple commands

  //close nfc
  VeChainNFCSDK.invalidateNFC ()

Read configuration information of chip operation

//open nfc
VeChainNFCSDK.openNFC()

//send command
 VeChainNFCSDK.readConfig { (response,errorCode) in
    if errorCode == ErrorCode.SuccessCode
    {
        print("success")
    }
    
    //close nfc
    VeChainNFCSDK.invalidateNFC ()
}

Get write chip configuration information verification code

The configuration information of temperature, humidity or acceleration should be set before the chip works to ensure that it is the same chip and verified by the verification code. Read the verification code as follows:

//open nfc
VeChainNFCSDK.openNFC()

//send command
 VeChainNFCSDK.readVerifyCode { (response, errorCode) in
    
    if code == ErrorCode.SuccessCode
    {
        print("success")
    }
    close nfc
    VeChainNFCSDK.invalidateNFC ()
}

Setting up Chip Work Configuration

//open nfc
VeChainNFCSDK.openNFC()

//send command
VeChainNFCSDK.setupConfig(configModel:WriteConfigModel) {(response,errorCode) in

    if (errorCode == ErrorCode.SuccessCode)
    {
        print("success")
    }
    
    //close nfc
    VeChainNFCSDK.invalidateNFC ()
}

WriteConfigModel:

public var verifyCode:Int = 0 // verified by the verification code

public var account:String = "" // the account modifies config

public var isTempEnable:Bool = false // Whether the temperature acquisition function is on.

public var interval:Int = 0 // Temperature acquisition interval (minute), greater than or equal to 1.

public var startDelay:Int = 0 // Delay time (minute), greater than or equal to 0.

public var runningTime:Int = 0 // Running time (minute), 0 to unlimited time.

public var validMinimum:Float = 0.0 // Minimum Temperature (°c) Accurate 1-digit decimal, not lower than -40.

public var validMaximum:Float = 0.0 // Maximum Temperature (°c) Accurate 1-digit decimal，not higher than 85.

public var isHumidityEnable:Bool = false // Whether the humidity acquisition function is on.

public var humidityInterval:Int = 0 // Humidity acquisition interval (minute), greater than or equal to 1.

public var humidityStartDelay:Int = 0 // Delay time (minute), greater than or equal to 0.

public var humidityRunningTime:Int = 0 // Running time (minute), 0 to unlimited time.

public var isAccelerateEnable:Int = false // Whether the Acceleration acquisition function is on.

Read the collected temperature, humidity and acceleration data

 VeChainNFCSDK.openNFC()
 
 VeChainNFCSDK.readSensorData() { (sensorDataModel,errorCode) in
                  
    if (errorCode == ErrorCode.SuccessCode)
    {
        print("success")
    }         
                             
     VeChainNFCSDK.invalidateNFC()
}

SensorCollectionDataModel description


    public var  tempGroupSize:Int = 0 //Number of compression of temperature data 
    public var  humidityGroupSize:Int = 0 //Number of humidity data compressed
    public var  accGroupSize:Int = 0 //Number of acceleration data compression
    
    public var  tempDataList:Array<Any> = Array<Any>()
    public var  tempTimeList:Array<Any> = Array<Any>()
    public var  tempHash:Array<Any> = Array<Any>()
    
    public var  humidityDataList:Array<Any> = Array<Any>()
    public var  humidityTimeList:Array<Any> = Array<Any>()
    public var  humidityHash:Array<Any> = Array<Any>()
    
    public var  accelerateDataList:Array<Any> = Array<Any>()
    public var  accelerateTimeList:Array<Any> = Array<Any>()
    public var  accelerateHash:Array<Any> = Array<Any>()
    
    public var config:String = ""//Hexadecimal string

    public var configModel:ConfigDataModel  = ConfigDataModel() //

ConfigDataModel description

      public var  isTempEnable:Bool = false //Is the temperature measurement on
       public var  interval:Int = 0//Unit minute
       public var  startDelay:Int = 0//Unit minute
       public var  runningTime:Int = 0//Unit minute
       public var  validMinimum:Float = 0.0//Actual value*10
       public var  validMaximum:Float = 0.0//Actual value*10
       public var  accuracy:Int = 0//Temperature data storage accuracy

       public var  isHumidityEnable:Bool = false  //Is the humidity measurement on
       public var  humidityInterval:Int = 0 //Humidity measurement interval,Unit minute
       public var  humidityStartDelay:Int = 0 //Unit minute
       public var  humidityRunningTime:Int = 0 //Unit minute

       public var  isAccelerateEnable:Bool = false //Is the accelerate measurement on

       public var  configTime:Int = 0//Positioning accuracy,Unit meters
       public var  status:Int = 0
       public var  account:String = ""

        public var  configLongitude:Float = 0.0//(Actual value*1000000);
        public var  configLatitude:Float = 0.0//(Actual value*1000000);
       public var  configLocationAccuracy:Int = 0//Positioning accuracy,Unit meters

       public var  isStop:Bool = false //Whether the chip is suspended
       public var  isTemperatureStop:Bool = false //Whether temperature acquisition is stopped
       public var  isHumidityStop:Bool = false //Whether humidity acquisition is stopped
       public var  isAccelerateStop:Bool = false //Whether acceleration acquisition is stopped
       
       public var  isTemperatureFull:Bool = false //Whether temperature data is full
       public var  isHumidityFull:Bool = false //Whether humidity data is full
       public var  isAccelerateFull:Bool = false //Whether accelerate data is full
       
       public var  isSupportTemperature:Bool = false 
       public var  isSupportHumidity:Bool = false 
       public var  isSupportAcceleration:Bool = false 
   

       public var uid:String = ""//Hexadecimal string
       public var vid:String = ""//Hexadecimal string
       public var saltNo:String = ""//Hexadecimal string
        
       public var remainingRunTime:Float = ""//Calculated battery runtime
       public var battery:Int = ""//Battery percentage 0 ～ 100

       public var  currentTime:Int = 0 // 'current' as in: when the response class was created
       public var  correctionFactor:Double = 0.0 //correction factor

Verification of chip collection data

SDK is used to verify whether the data is true and reliable, or whether the data has been modified.If the data is not true or modified, the validation return failure

    let verifyModel = VerifyDataModel()
    verifyModel.data = self.sensorDataModel.dataList
    verifyModel.signature = self.sensorDataModel.signature
        
    switch opType {
        case .readTemperature:                    
                verifyModel.groupSize = String(self.sensorDataModel.tempGroupSize)
            
        case .readHumidity:
                verifyModel.groupSize = String(self.sensorDataModel.humidityGroupSize)
                
        case .readAcceleration:
                verifyModel.groupSize = String(self.sensorDataModel.accGroupSize)
        default:
            break
    }
        
    verifyModel.uid = self.sensorDataModel.uid
    verifyModel.vid = self.sensorDataModel.vid
    verifyModel.saltNo = self.sensorDataModel.saltNo
    verifyModel.config = self.sensorDataModel.config

    VeChainNFCSDK.verfiyHash(verifyModel:verifyModel) { (code) in
           
        if code == ErrorCode.SuccessCode{                    
            TAlert.show(type: .info, text: "checkhash success")
        }else{
            TAlert.show(type: .info, text: "checkhash fail")
        }
    }