A watchdog monitoring system and monitoring method thereof

Abstract

The invention discloses a watchdog monitoring system, which comprises more than one single-chip microcomputer, a watchdog monitoring circuit, more than one serial interface for receiving data sent by the single-chip computer, more than one switching switch and a controller. A single-chip microcomputer is connected with a number storage for storing number data information, and each serial interface is connected with the detection terminal of the watchdog monitoring circuit through a switch, and the watchdog monitoring circuit is connected with a timer for monitoring timing device and the first counter used to provide the reference time for the watchdog monitoring circuit, the reset pins of the watchdog monitoring circuit are respectively connected to the reset terminal of the single-chip microcomputer, the single-chip microcomputer is electrically connected to the controller, and the controller is also electrically connected to the switch, The controller is connected with a second counter for counting switching times of the switch. The invention also discloses a watchdog monitoring method. The invention improves monitoring efficiency.

Description

technical field [0001] The invention relates to the technical field of monitoring systems, in particular to a watchdog monitoring system and a monitoring method thereof. Background technique [0002] With the development of single-chip microcomputer technology and the increasingly mature manufacturing process, the application field of single-chip microcomputer has been continuously expanded. However, due to the poor anti-interference ability of single-chip microcomputer, especially in some places with harsh conditions and high noise, it often occurs that the single-chip microcomputer is affected by external interference. And lead to crash phenomenon, causing the system not to work properly. [0003] At present, setting the watchdog circuit is an important way to prevent the single-chip computer from crashing and improve the anti-interference ability of the single-chip computer system. Watchdog, also called watchdog timer, is a timer circuit, generally has one input, called ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a watchdog monitoring system and monitoring method thereof, to solve the problem of low monitoring efficiency in the above-mentioned background technology

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