六 模拟控制室
本系统可用DP-668 实验仪模拟产生控制室数据。DP-668 实验仪具有模拟控制室温/湿度变化、自修改温/湿度SV 值以及报警等功能。其模拟温/湿度变化算法如下:
extern unsigned char code RoomID = 1; /* 房间 ID */
extern float RoomTemp = 0; /* 房间温度 */
extern float RoomHumi = 0; /* 房间湿度 */
。..
float code RoomTempTab[] = {
19.0, 19.2, 19.4, 19.6, 19.8,
20.0, 20.2, 20.4, 20.6, 20.8,
21.0, 21.2, 21.4, 21.6, 21.8,
21.8, 21.6, 21.4, 21.2, 21.0,
20.8, 20.6, 20.4, 20.2, 20.0,
19.8, 19.6, 19.4, 19.2, 19.0
};
float code RoomHumiTab[] = {
55.0, 55.5, 56.0, 56.5,
57.0, 57.5, 58.0, 58.5,
59.0, 59.5, 60.0, 60.5,
61.0, 61.5, 62.0, 62.5,
63.0, 63.5, 64.0, 64.5
};
void main(void)
{
unsigned int idata i, j;
。..
while (1)
{
/* 模拟温/湿度变化 */
RoomTemp = RoomTempTab[j % (sizeof (RoomTempTab)/sizeof(RoomTempTab[0]))];
RoomHumi = RoomHumiTab[j++ % (sizeof (RoomHumiTab)/sizeof(RoomHumiTab[0]))];
。..
}
}
本系统也可用任一款ZLGCAN 接口卡和PC 组成的系统来模拟产生控制室数据,基于ZLGCAN 通用函数接口编程,同样具有模拟控制室温/湿度变化、自修改温/湿度SV 值以及报警等功能。其模拟温/湿度变化算法(VC 示范)如下:
float m_dwTemp[8];// 房间1 6 及风道1 2 的温度
float m_dwHumi[8];// 房间1 6 及风道1 2 的湿度
。..
static double i;
i += 0.1;
m_dwTemp[0] = (float)sin(i + 0.0) + 20;
m_dwTemp[1] = (float)sin(i + 0.1) + 20;
m_dwTemp[2] = (float)sin(i + 0.2) + 20;
m_dwTemp[3] = (float)sin(i + 0.3) + 20;
m_dwTemp[4] = (float)sin(i + 0.4) + 20;
m_dwTemp[5] = (float)sin(i + 0.5) + 20;
m_dwTemp[6] = (float)sin(i + 0.6) + 20;
m_dwTemp[7] = (float)sin(i + 0.7) + 20;
m_dwHumi[0] = (float)cos(i + 0.0) + 60;
m_dwHumi[1] = (float)cos(i + 0.1) + 60;
m_dwHumi[2] = (float)cos(i + 0.2) + 60;
m_dwHumi[3] = (float)cos(i + 0.3) + 60;
m_dwHumi[4] = (float)cos(i + 0.4) + 60;
m_dwHumi[5] = (float)cos(i + 0.5) + 60;
m_dwHumi[6] = (float)cos(i + 0.6) + 60;
m_dwHumi[7] = (float)cos(i + 0.7) + 60;
。..
责任编辑:gt
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