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Multitask software watchdog acquiring method

A technology of software watchdog and implementation method, applied in the direction of instrument, error detection/correction, calculation, etc., can solve the problem of GPRS monitoring terminal not working normally

Inactive Publication Date: 2014-12-10
中国东方电气集团有限公司
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AI Technical Summary

Problems solved by technology

[0003] However, in actual industrial applications such as photovoltaic power plants, wind farms and other industrial sites, the harsh physical environment and various electromagnetic interferences may cause the GPRS monitoring terminals arranged on the industrial sites to fail to work normally, that is, the reliability of the industrial sites for GPRS monitoring terminals sexually demanding

Method used

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  • Multitask software watchdog acquiring method

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Embodiment Construction

[0022] A high-reliability GPRS monitoring terminal of the present invention will be further described below in conjunction with the accompanying drawings.

[0023] Such as figure 1 As shown, a kind of high reliability GPRS monitoring terminal that this example involves, its hardware circuit includes embedded microcontroller, GPRS wireless communication module, power module, GPRS power management module, memory module, input and output module, hardware watchdog and Indicator light; Among them, the GPRS wireless communication module is connected with the embedded microcontroller through the serial port, the GPRS power management module is connected with the embedded microcontroller through the general IO port, and the power module is connected with the embedded microcontroller and the GPRS power management module respectively , the embedded microcontroller is also connected with the storage module, the input and output module, the hardware watchdog and the indicator light, and t...

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Abstract

The invention particularly discloses a multitask software watchdog acquiring method. A multitask software watchdog is composed of software watchdog subprograms of tasks and a dog feeding subprogram of the multitask software watchdog. The software watchdog subprogram of each task is mainly in charge of initialization of a software watchdog of the task and used for updating a counter of the software watchdog of the task in a major cycle. The dog feeding subprogram of the multitask software watchdog is used for checking whether the software watchdog of each task is over time or not in a system clock period, and a system is reset through a hardware watchdog if only the software watchdog of a certain task is over time. According to the method, the multitask software watchdog is acquired and it is guaranteed that the system can not come to a halt caused by strong external interference.

Description

technical field [0001] The invention relates to the technical field of wireless communication, and specifically discloses a method for realizing a multi-task software watchdog. Background technique [0002] In harsh industrial applications such as photovoltaic power plants and wind farms, in order to ensure the reliable operation of on-site devices, remote monitoring of these devices is required. GPRS is one of the most important data transmission methods in IoT applications, and has been widely used in industrial automation, smart grid, smart transportation, smart home, logistics, hydrology, meteorology and other industries. Using GPRS technology can easily build a remote intelligent monitoring system for field equipment to meet the needs of users. On the one hand, equipment manufacturers can easily realize long-term monitoring and remote upgrading of equipment operation status through this monitoring system, so as to realize remote maintenance of equipment, continuously i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/00
Inventor 徐立强张帆尚留记肖唐杰董娜吴建东
Owner 中国东方电气集团有限公司
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