病房呼叫系统摘要英文翻译

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病房呼叫系统摘要英文翻译

Calling device for each hospitalized people are very important, especially for those in need of nurses during hospitalization is often the patient, calling device for hospital is also important, it can indirectly determining hospital can provide to the patient's quality of service, but because of the limited number of hospital nursing staff, nurses do not always guarantee stay in every patient side, sickbed calling system can make the patient in the critical moment and timely contact a doctor or a nurse, so as to receive timely treatment and nursing. It has a perfect function of Sickbed Calling System, for a high quality service of the hospital, is very important.The system is based on AT89S51single chip microcomputer Sickbed Calling system. The system mainly comprises a main control circuit, a call button, LED digital tube display circuit and the voice prompt circuit, can be achieved between patients and medical personnel information, patient around without a doctor but in need of nursing time can be timely informed of the medical staff, physicians can also through the system to accurately determine which beds patients in need of care. The most outstanding advantage is the preferred option, the first time to do the most in need of help for help

病房呼叫系统设计我们已经设计好了但是有一个要求无法达到怎么

进入161计数：555每隔1秒发出一个脉冲，151的输入有一个或多个输入为1，利用161的计数功能用一个555电路作为信号发生器（输出方波），此方波进入计数器74LS161（或相同功能的），161输出的前3位进8选1数字选择器（74LS151）,151的8个输入端接病房来的信号（开关接通电压5V，不接为0V，但不能为空，可以采用下拉电阻），输出端接锁存器锁存输入clk，用它去控制存器锁存输入CLK，记下了房号，经译码器送数码管显示，输出接4线7段译码器，后接数码管。工作原理，以此类推，8秒选择完成返回1号房。151的输出是按时间选择出的房号，4位或8位均可，在第一秒时选择1号房，2秒时选择2号房，8秒一个循环。当病房有人按下开关时。锁存器输入接161的前3位...

病房呼叫系统设计要求：7个病人用的开关单个按时LED显示号数

用一个555电路作为信号发生器（输出方波），此方波进入计数器74LS161（或相同功能的），161输出的前3位进8选1数字选择器（74LS151）,151的8个输入端接病房来的信号（开关接通电压5V，不接为0V，但不能为空，可以采用下拉电阻），输出端接锁存器锁存输入CLK,4位或8位均可。锁存器输入接161的前3位，输出接4线7段译码器，后接数码管。

工作原理：555每隔1秒发出一个脉冲，进入161计数，8秒一个循环。当病房有人按下开关时，151的输入有一个或多个输入为1，利用161的计数功能，在第一秒时选择1号房，2秒时选择2号房，以此类推，8秒选择完成返回1号房。151的输出是按时间选择出的房号，用它去控制存器锁存输入CLK，记下了房号，经译码器送数码管显示。显示时间由555决定。