120 lines
2.2 KiB
C++
120 lines
2.2 KiB
C++
#include "Kernel\Sys.h"
|
|
#include "Kernel\TTime.h"
|
|
|
|
#include "Device\Port.h"
|
|
|
|
#include "ACZero.h"
|
|
|
|
ACZero::ACZero()
|
|
{
|
|
Period = 10000;
|
|
Width = 0;
|
|
Count = 0;
|
|
Last = 0;
|
|
}
|
|
|
|
ACZero::~ACZero()
|
|
{
|
|
if (Port.Opened) Close();
|
|
}
|
|
|
|
void ACZero::Set(Pin pin, byte invert)
|
|
{
|
|
if (pin == P0) return;
|
|
|
|
Port.HardEvent = true;
|
|
Port.Set(pin);
|
|
if (invert < 2) Port.Invert = invert;
|
|
Port.Press.Bind(&ACZero::OnHandler, this);
|
|
Port.UsePress();
|
|
}
|
|
|
|
bool ACZero::Open()
|
|
{
|
|
if (!Port.Open()) return false;
|
|
|
|
debug_printf("过零检测引脚探测: ");
|
|
|
|
// 等一次零点
|
|
Sys.Sleep(20);
|
|
if (Count > 0)
|
|
{
|
|
debug_printf("已连接交流电！\r\n");
|
|
}
|
|
else
|
|
{
|
|
debug_printf("未连接交流电！\r\n");
|
|
Port.Close();
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void ACZero::Close()
|
|
{
|
|
Port.Close();
|
|
}
|
|
|
|
void ACZero::OnHandler(InputPort& port, bool down)
|
|
{
|
|
if (!down)
|
|
{
|
|
Width = port.PressTime;
|
|
return;
|
|
}
|
|
|
|
auto now = Sys.Ms();
|
|
Count++;
|
|
|
|
// 每256*10ms修正一次周期
|
|
if (Last > 0 && (Count & 0xFF) == 0)
|
|
//if (Last > 0 && (Count & 0xFF) == 0)
|
|
{
|
|
// 两次零点
|
|
int ms = now - Last;
|
|
int us = ms * 1000;
|
|
|
|
// 零点信号可能有毛刺或者干扰，需要避开
|
|
//if (us <= Period / 2 || us >= Period * 2) return;
|
|
if (us <= (Period >> 1) || us >= (Period << 1)) return;
|
|
|
|
// 通过加权平均算法纠正数据
|
|
Period = (Period * 31 + us) / 32;
|
|
|
|
debug_printf("OnHandler us=%d Period=%d Width=%d \r\n", us, Period, Width);
|
|
}
|
|
|
|
Last = now;
|
|
}
|
|
|
|
// 等待下一次零点，需要考虑继电器动作延迟
|
|
bool ACZero::Wait(int usDelay) const
|
|
{
|
|
if (Count == 0 || Last == 0) return false;
|
|
|
|
// 计算上一次零点后过去的时间
|
|
int ms = Sys.Ms() - Last;
|
|
if (ms < 0 && ms > 40) return false;
|
|
|
|
// 4号继电器作为输出信号
|
|
static OutputPort sign(PA5);
|
|
sign != sign;
|
|
|
|
// 计算下一次零点什么时候到来
|
|
int us = Period - ms * 1000;
|
|
// 继电器动作延迟
|
|
us -= usDelay;
|
|
|
|
int d = Period;
|
|
while (us < 0) us += d;
|
|
while (us > d) us -= d;
|
|
|
|
debug_printf("ACZero::Wait 周期=%dus 等待=%dus Width=%dms Count=%d Last=%d \r\n", Period, us, Width, Count, (int)Last);
|
|
|
|
//Sys.Delay(us);
|
|
Time.Delay(us);
|
|
|
|
return true;
|
|
}
|