A low cost display, alarm and control circuit for distributed computer monitoring and control system

Introduces the method of the low cost display, alarm and control circuit for a distributed computer monitoring and control system. This circuit has the characteristic of making full use of the hardware resource, flexibility and low cost. The method is not only useful for distributed computer monitoring and control system but also can be used for an intelligent instrument to reduce its cost and reduce its volume. The case study on a coalmine distributed computer monitoring and control system shows the high efficiency and low cost of this method.