The monitoring content of signal equipment monitoring system mainly includes two types: one is switching value; The other is analog.
The monitoring contents of (1) switch mainly include: console button circuit, console indicator circuit and combined frame relay.
(2) The test contents of analog quantity mainly include: power screen voltage, switch machine, track voltage, frequency shift transmitter, cable insulation, power supply to floor drain current, etc.
Microcomputer monitoring is a software control system of computer monitoring, which is of great significance to safe production and scientific management. Centralized monitoring is one of the active monitoring methods in drug clinical safety research. It is defined as a detailed record of the adverse drug reactions and drug utilization in a certain period (months or years) in a hospital or region, so as to explore the occurrence law of adverse drug reactions.
Requirements for setting current alarm for microcomputer monitoring
The voltage within 1. 10V and the DC current within 5A are detected by 5 1 single chip microcomputer and displayed on 1602 LCD.
2. Accuracy of voltage and current, 0. 1V and 0.1a..
3. A high-power resistor is used as a dummy load to generate a detection current.
4. Set the threshold of current and voltage by pressing the key. If the detected voltage exceeds the set threshold, the buzzer will give an alarm and the green light will be on. Microcomputer is a computer system with microprocessor as the central processor.