Automatic power down rebooting device

A power-down restart and automatic technology, applied in the direction of data reset device, etc., can solve the problem of cold reset and other problems, achieve the effect of reducing workload, convenient and flexible use, and improving work reliability

Inactive Publication Date: 2006-02-01
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is that the hardware watchdog circuit in the prior art can only generate hot reset when the CPU appears "crash" or "program flying" and other phenomena, and cannot generate cold reset. Electric reset device

Method used

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] figure 1 It is the circuit schematic diagram of the automatic power-down restart device proposed by the present invention; figure 2 yes figure 1 The specific circuit schematic diagram of the middle delay circuit C. Such as figure 1 and figure 2 As shown, the automatic power-down restart device proposed by the present invention includes microprocessor application equipment A, watchdog circuit B, microprocessor application equipment A and watchdog circuit B common ground, and the reset of microprocessor application equipment A terminal is connected with the output terminal of the watchdog circuit B; the output control terminal of the microprocessor application equipment A is connected with the input terminal of the watchdog circuit; the device also includes a delay circuit C and a relay D; the delay circuit C includes a counter tha...

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Abstract

An automatic restart ¿C up device from power failure adds a delay circuit and a relay on hardware equipped with watchdog circuit. It is feature as triggering relay to act for cutting off power input end of microprocessor application device after certain amount of reset pulse is detected by delay circuit, restoring relay to be original state for reswitching on microprocessor application device after a period of time.

Description

technical field [0001] The invention relates to the application field of microprocessors, in particular to a microprocessor restart technology. Background technique [0002] The power equipment and environment centralized monitoring system is used for remote measurement, remote signaling and remote control of various parameters, images, sounds, etc. Monitor its operating parameters in real time, diagnose and deal with faults, record and analyze relevant data, so as to realize a computer control system for centralized monitoring and centralized maintenance of equipment with fewer or unattended communication bureaus (stations). [0003] With the continuous development of microprocessor technology, the hardware design of power equipment and environment centralized monitoring system mostly uses the microprocessor as the main CPU, and is equipped with basic peripheral circuits such as memory, decoding circuit, reset circuit and A / D conversion circuit. And special circuits such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/24
Inventor 常国强
Owner ZTE CORP
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