Beispiel #1
0
        /// <summary>
        /// 获取称重数值
        /// </summary>
        /// <param name="receiveData"></param>
        /// <param name="paraInfo"></param>
        /// <returns></returns>
        public static double GetWeightData(string receiveData, ParaInfo paraInfo)
        {
            double retValue = 0;

            try
            {
                receiveData = receiveData.Replace(" ", "");
                byte[] receiveByte = StrCommon.GetByteArrayByHexStr(receiveData);
                if (receiveByte.Length == paraInfo.ReceiveDataLength)//首先判断接收数据字节数长度是否匹配
                {
                    string weightData = StrCommon.MidStrMain(receiveData, paraInfo.StartMark, paraInfo.EndMark);
                    if (!string.IsNullOrEmpty(weightData))
                    {
                        byte[] weightDataByte = StrCommon.GetByteArrayByHexStr(weightData);
                        if (weightDataByte.Length == paraInfo.WeightDataLength)
                        {
                            int retLength = weightDataByte.Length - paraInfo.WeightDataStartBit;
                            if (retLength > 0)
                            {
                                byte[] new_WeightDataByte = weightDataByte.Skip(paraInfo.WeightDataStartBit).Take(retLength).ToArray();
                                string retString;
                                if (paraInfo.WeightDataOrderMode == 0)//正序
                                {
                                    retString = StrCommon.HexToStr(StrCommon.GetHexStrByByteArray(new_WeightDataByte));
                                }
                                else//反序
                                {
                                    retString = StrCommon.HexToStrReverseOrder(StrCommon.GetHexStrByByteArray(new_WeightDataByte));
                                }
                                retValue = double.Parse(retString) * paraInfo.ConvertRatio;
                            }
                        }
                        else
                        {
                            Console.WriteLine("重量数据长度和配置重量数据长度不一致:" + weightData);
                        }
                    }
                }
                else
                {
                    Console.WriteLine("接收数据长度和配置接收数据长度不一致:" + receiveData);
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            return(retValue);
        }
Beispiel #2
0
        public TransHelper()
        {
            ParaInfo para = new ParaInfo
            {
                ReceiveDataLength   = 13,         //接收字节总长度
                StartMark           = "2B",       //开始字节  -  或
                EndMark             = "6B670D0A", //结束字节位置
                WeightDataLength    = 8,          //重量数据总长度
                WeightDataStartBit  = 0,          //起始位置
                WeightDataOrderMode = 0,          //0正序,1反序
                ConvertRatio        = 1,          //转换系数

                Port     = 3,
                Baudrate = 9600,
                DataBit  = 8,
                CheckBit = 0,
                StopBit  = 1,
            };

            Dictionary <int, string> endMarkDic   = StrCommon.GetDictByHexStr(para.EndMark);
            Dictionary <int, string> startMarkDic = StrCommon.GetDictByHexStr(para.StartMark);

            //SerialPortClient portClient = new SerialPortClient("COM" + para.Port, para.Baudrate.ToString(), para.CheckBit.ToString(), para.DataBit.ToString(), para.StopBit.ToString());
            SerialPortClient portClient = new SerialPortClient();

            portClient.ConnectionStatusChanged += SerialPort_ConnectionStatusChanged;
            portClient.SetPort("COM" + para.Port, para.Baudrate.ToString(), para.CheckBit.ToString(), para.DataBit.ToString(), para.StopBit.ToString());
            portClient.Connect();
            portClient.MessageReceived += new Action <List <byte> >(datapool =>
            {
                //匹配数据帧,此处以2B为帧头、6B670D0A为帧尾
                while (true)
                {
                    try
                    {
                        if (datapool.Count < para.ReceiveDataLength - 1)
                        {
                            break;
                        }
                        if (datapool.Count > 1000)
                        {
                            datapool.RemoveRange(0, datapool.Count);
                            break;
                        }

                        if (datapool[0] == StrCommon.GetByteArrayByHexStr(startMarkDic.Count > 0 ? startMarkDic[0] : "")[0])
                        {
                            for (int d = 0; d < startMarkDic.Count; d++)
                            {
                                if (datapool[d] == StrCommon.GetByteArrayByHexStr(startMarkDic[d])[0])
                                {
                                    datapool.RemoveAt(0);
                                }
                            }
                            continue;
                        }
                        int index = -1;//正确作法是记住上次最末尾的索引,避免重复匹配
                        for (int i = 0; i < datapool.Count - 1; i++)
                        {
                            if (datapool[i] == StrCommon.GetByteArrayByHexStr(endMarkDic.Count > 0 ? endMarkDic[0] : "")[0])
                            {
                                index = i;
                                break;
                            }
                        }
                        if (index != -1)
                        {
                            byte[] data = datapool.GetRange(0, index + endMarkDic.Count).ToArray();
                            datapool.RemoveRange(0, index + endMarkDic.Count);
                            //委托传值
                            string msg = StrCommon.GetHexStrByByteArray(data);
                            setWeightResultValue(GetWeightData(para.StartMark + msg, para));
                        }
                        else
                        {
                            break;
                        }
                    }
                    catch (Exception ex)
                    {
                        break;
                    }
                }

                #region back
                ////匹配数据帧,此处以2B为帧头、6B670D0A为帧尾
                //if (datapool.Count > 12)
                //{
                //    if (datapool[0] == StrCommon.GetByteArrayByHexStr(startMarkDic.Count > 0 ? startMarkDic[0] : "")[0])
                //    {
                //        for (int d = 0; d < startMarkDic.Count; d++)
                //        {
                //            if (datapool[d] == StrCommon.GetByteArrayByHexStr(startMarkDic[d])[0])
                //            {
                //                datapool.RemoveAt(0);
                //            }
                //        }
                //    }
                //    int index = -1;//正确作法是记住上次最末尾的索引,避免重复匹配
                //    for (int i = 0; i < datapool.Count - 1; i++)
                //    {
                //        if (datapool[i] == StrCommon.GetByteArrayByHexStr(endMarkDic.Count > 0 ? endMarkDic[0] : "")[0])
                //        {
                //            index = i;
                //            if (index != -1)
                //            {
                //                byte[] data = datapool.GetRange(0, index + endMarkDic.Count).ToArray();
                //                datapool.RemoveRange(0, index + endMarkDic.Count);
                //                //委托传值
                //                string msg = StrCommon.GetHexStrByByteArray(data);
                //                setWeightResultValue(GetWeightData(para.StartMark + msg, para));
                //                break;
                //            }
                //        }
                //    }
                //}
                #endregion
            });
        }