init

device/SerialPort/PowerMeter.cpp

@@ -0,0 +1,105 @@
+#include "PowerMeter.h"
+
+
+PowerMeter* PowerMeter::uniqueInstanceMach = nullptr;
+PowerMeter* PowerMeter::uniqueInstanceLight = nullptr;
+
+PowerMeter* PowerMeter::MachInstance()
+{
+    if (!uniqueInstanceMach) {
+        uniqueInstanceMach = new PowerMeter();
+    }
+    return uniqueInstanceMach;
+}
+PowerMeter* PowerMeter::LightInstance()
+{
+    if (!uniqueInstanceLight) {
+        uniqueInstanceLight = new PowerMeter();
+    }
+    return uniqueInstanceLight;
+}
+
+PowerMeter::PowerMeter()
+{
+
+}
+PowerMeter::~PowerMeter()
+{
+
+}
+
+//int PowerMeter::GetValue(char *data, unsigned short data_len,float * Value)
+int PowerMeter::GetValue(float * Value)
+{
+    int ret;
+    char cmd[50];
+    char revBuf[50] = {0};
+    ::EnterCriticalSection(&mCsRead);
+
+
+    memset(revData,0,4096);
+    sprintf_s(cmd, "$POW\r\n");
+    ret = SendCmd(reinterpret_cast<char*>(cmd), strlen(cmd) ,reinterpret_cast<unsigned char*>(revData), &revDataLen);
+    if (ret == 0)
+    {
+        //revData[strlen(revData) - 2] = 0;
+        memcpy_s(revBuf,50,revData,strlen(revData));
+        for (int i=0;i<(int)strlen(revData);i++)
+        {
+            if ((revData[i] == '\r') || (revData[i] == '\n'))
+                revBuf[i] = 0;
+        }
+        *Value = convert(revBuf);
+    }
+    ::LeaveCriticalSection(&mCsRead);
+    return ret;
+}
+float PowerMeter::convert(char *num)
+{
+    //printf("开始转换%s\n", num);
+    float num1 = 0.0, num2 = 0.0;
+    int sign = 1;
+    int exp = 1, cishu = 0;
+    //表示e后面是正号还是负号，正号为1，负号为-1
+    //cishu表示是几次饭
+    char *p = num;
+    if (*p == '-') {
+        sign = -1;
+        p++;
+        //如果小数是复数
+    }
+    while (isdigit(*p)) {
+        num1 = num1 * 10 + *p - '0';
+        p++;
+        //小数点前面的部分
+    }
+    //printf("num1:%f\n", num1);
+    float i = 0.1;
+    p++;
+    while (isdigit(*p)) {
+        num2 += i * (*p - '0');
+        i *= 0.1;
+        p++;
+    }
+    //小数点后面的部分
+    //printf("num2:%f\n", num2);
+    if (*p == 'e' || *p == 'E')
+        p++;
+    if (*p == '-') {
+        exp = -1;
+        p++;
+    }
+    else if (*p == '+')p++;
+
+    while (*p != '\0') {
+        cishu = cishu * 10 + *p - '0';
+        p++;
+    }
+    //printf("cishu:%d\n", cishu);
+    float result = sign * (num1 + num2);
+    if (exp == -1) i = 0.1;
+    else i = 10;
+    for (int j = 0; j < cishu; j++) result *= i;
+    return result;
+
+}