耀华仪表A9数据解析(C#)
耀华仪表A9 数据解析，磨蹭一中午，终于把他解析出来了，测试了一下午感觉很完美，在这里分享给大家；废话不说，直接贴代码；顺便给大家推荐一个开源称重软件，git 码云地址：https://gitee.com/jinhengliuyafei/2022.git ， 谢谢大家支持；
///
/// 缓存
///
List
///
/// 缓存
///
List
///
/// 仪表数据解析
///
/// 串口数据
///
public string DataConvert(byte[] data)
{
string weightVal = string.Empty;
buffData.AddRange(data);
if (buffData.Count < 12) return weightVal;
int startFlag = buffData.LastIndexOf(2);
int endFlag = buffData.LastIndexOf(3);
if (startFlag >= 0 && 0 < endFlag && startFlag < endFlag)
{
//截取一帧数据
var tmpData = buffData.GetRange(startFlag, endFlag - startFlag + 1);
if (tmpData.Count < 12 || tmpData.Count >12) return weightVal;
buffData.Clear();
//判断符号
string flag = string.Empty;
if (tmpData[1] == 45) //45的ascii符号是 -；
{
flag = "-";
}
//读取中间6个字节的数据
string value = string.Empty;
byte[] arr = new byte[6];
int j = 0;
for (int i = 2; i < 8; i++)
{
arr[j] = tmpData[i];
j++;
}
string num = Encoding.ASCII.GetString(arr);
//读取小数位
byte[] arrDot = new byte[1];
arrDot[0] = tmpData[8];
int dot = 0;
int.TryParse(Encoding.ASCII.GetString(arrDot), out dot);
int len = num.Length - dot;
if (len <= 0) return string.Empty;
string num1 = num.Substring(0, len);
string num2 = num.Substring(num.Length - dot, dot);
string result = flag + num1 + "." + num2;
//校验
byte[] checkData = new byte[12];
for (int i = 0; i < tmpData.Count && i < 12; i++)
{
checkData[i] = tmpData[i];
}
var heightResult = HeightBitValidate(checkData);
var lowResult = LowBitValidate(checkData);
if (heightResult == tmpData[9] && lowResult == tmpData[10])
{
weightVal = result;
}
}
return weightVal;
}
///
/// 高位验证
///
///
///
public static int HeightBitValidate(byte[] data)
{
byte[] height = new byte[8];
if (data.Length == 12 && data[0] == 2)
{
int i = 0;
for (int index = 1; index < 9; index++)
{
height[i] = (byte)((data[index]) >> 4);
i++;
}
}
int tmp = 0;
for (int i = 0; i < height.Length; i++)
{
tmp = tmp ^ height[i];
}
if (tmp <= 9)
{
tmp += 48;
}
else
{
tmp += 55;
}
return tmp;
}
///
/// 低位验证
///
///
///
public static int LowBitValidate(byte[] data)
{
byte[] height = new byte[8];
if (data.Length == 12 && data[0] == 2)
{
int i = 0;
for (int index = 1; index < 9; index++)
{
height[i] = (byte)((data[index]) << 4);
i++;
}
}
int tmp = 0;
for (int i = 0; i < height.Length; i++)
{
tmp = tmp ^ height[i];
}
tmp = tmp >> 4;
if (tmp <= 9)
{
tmp += 48;
}
else
{
tmp += 55;
}
return tmp;
}