船舶电气英语The display terminal CRT can display message including Chinese character .Allowing for the seamy weather around the ship ,the system adopts the display terminal in stead of general CRT.The sonic alarm can give general alerting signa
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船舶电气英语The display terminal CRT can display message including Chinese character .Allowing for the seamy weather around the ship ,the system adopts the display terminal in stead of general CRT.The sonic alarm can give general alerting signa
船舶电气英语
The display terminal CRT can display message including Chinese character .Allowing for the seamy weather around the ship ,the system adopts the display terminal in stead of general CRT.
The sonic alarm can give general alerting signal and urgent alerting signal .The other counter in INTEL 8253 generates the frequency of alerting signal .The counter is initialized to Working-Mode Tree .Its output port can send square wave of different frequency by virtue of initial value imported .The visual alarm can provide alarm level of different color and blink rate under the control of the program.
In order to make the system work formally in seamy condition,much interference-free means has been adopted .For example,floating ground of host engine,double-section filter,and double-stage isolation and isolating amplification,in addition to selection of interference-free electronic component .
2 Software analysis
船舶电气英语The display terminal CRT can display message including Chinese character .Allowing for the seamy weather around the ship ,the system adopts the display terminal in stead of general CRT.The sonic alarm can give general alerting signa
CRT显示器的显示终端可以显示信息,包括汉字.该系统采用了在普通CRT显示器取而代之显示终端,即使船舶周围天气不好也可以使用.
声音报警可提供一般警报信号和紧急警报信号.在英特尔8253其他反生成的警报信号的频率.计数器被初始化工作模式树.它的输出端口可以通过发送方的初值凭借不同频率波.视觉警报可以在程序的控制报警不同颜色和闪烁的利率水平.
为了使该系统在恶劣条件下正常工作,无干扰的方法已获得通过.举例来说,浮动地面主机发动机,双段过滤器,双级隔离和隔离放大,加上无干扰选择电子元件.
有点难度哦,仅供参考