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SYSTEM AND METHOD FOR MONITORING UNEXPECTED POWER LOSS AND ENSURING MINIMAL DATA LOSS FOR AN INDUSTRIAL EMBEDDED SYSTEM USING A LINUX OPERATING SYSTEM

IP.com Disclosure Number: IPCOM000243918D
Publication Date: 2015-Oct-28
Document File: 5 page(s) / 95K

Publishing Venue

The IP.com Prior Art Database

Abstract

The present invention provides a technique for monitoring unexpected power loss and also ensuring minimal data loss and data corruption for an industrial embedded system using a Linux operating system The method prompts a power loss monitoring hardware to trigger an interrupt if there is power loss detection As a result the method minimizes data loss upon the loss of power The industrial embedded system becomes fully operational once the power is resumed

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SYSTEM AND METHOD FOR MONITORING UNEXPECTED POWER LOSS AND ENSURING MINIMAL DATA LOSS FOR AN INDUSTRIAL EMBEDDED SYSTEM USING A LINUX OPERATING SYSTEM

BACKGROUND

The present invention relates generally to power management techniques and more particularly to a system and method for monitoring unexpected power loss and also ensuring minimal data loss and data corruption for an industrial embedded system using a Linux operating system.

Nowadays, industrial embedded system widely utilizes Linux Operating System (OS) and there arises a need for an efficient and reliable power management system. The efficient and reliable power management system can mitigate potential data loss and also enables fast recovery due to unexpected conditions, such as, unexpected power loss, brownouts and poor power quality, among others.

State of the art industrial embedded systems, utilizing Linux operating system, are unable to handle unexpected power failures. This is due to fact that Linux OS has an orderly shutdown procedure. The industrial embedded system is remotely located, and under such circumstances, the orderly shutdown becomes difficult. Furthermore, under such instances, the state of the art industrial embedded system are not capable of handling the unexpected power failure conditions and thereby unable to resume normal operation. As a result, the state of the art industrial embedded systems are unable to ensure an orderly shutdown during the unexpected power loss and recovery.

It would be desirable to have a system and method for monitoring unexpected power loss and also ensuring minimal data loss for the industrial embedded system using a Linux operating system.

BRIEF DESCRIPTION OF DRAWINGS

Figure 1 depicts a schematic diagram of a power management circuit according to present invention.

DETAILED DESCRIPTION


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The present invention provides a system and method for monitoring unexpected power loss and also ensuring minimal data loss for an industrial embedded system using a Linux operating system (OS).

Figure 1 depicts a schematic diagram of a power management circuit according to present invention.

Figure 1

The power management circuit includes a voltage regulator (1). The voltage regulator supplies an input power (VIN). The voltage regulator also provides a signal known as a power good signal to a processor (9). The power good signal monitors voltage regulation levels of the voltage regulator. The processor (9) is a Linux operating system processor.

The power management circuit also includes a super capacitor charger and power fail monitor
(3). The super capacitor charger and power fail monitor has two modes of operation, such as, a normal mode (also called a first mode) and a backup mode (also called a second mode).


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The first mode which is normal mode is utilized if the input power (VIN) is above a normal power fail input (PFI) threshold voltage. The PFI threshold voltage is externally programme...