Electric power network instrumentation control method

A power network and instrument technology, applied in the field of power network instrument control, can solve problems such as non-recovery and program flying out, and achieve the effect of reducing hardware requirements and costs, and simplifying software design

Inactive Publication Date: 2007-09-26
上海德力西集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the program may “fly out” and cannot be restored when the “watchdog” circuit

Method used

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  • Electric power network instrumentation control method

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Embodiment Construction

[0017] In the field of instrumentation technology, especially in the field of power network instrument control technology, watchdog design technology is often used to make the system return to the normal program as soon as possible when it encounters interference. The software password method is adopted to ensure that the communication data is correct. The use of false interrupt measures makes the perfect application of watchdog technology. The inventor has found in decades of practical application that when the interrupt program runs out of the main program due to interference, normal work cannot be resumed without false interrupt measures.

[0018] The so-called interrupt program means that it must be given priority to respond to emergencies in the system or events that require real-time response. To do this, a "priority structure" is set up in the program, which must follow the following 2 basic rules:

[0019] 1. A low-priority interrupt can be interrupted by a high-prio...

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Abstract

This invention discloses one power network meter control method in apparatus field, which comprises the following steps: a, in start, connecting power; b, initiating it; c, false interrupting; d, main programming; e, judging whether the operation is normal, if yes, then going for step d; f, if not, then resetting the program back to step b.

Description

technical field [0001] The invention relates to the field of instruments and meters, in particular to a method for controlling electric network instruments. Background technique [0002] With the rapid development and maturity of electronic technology, computer technology, and network communication technology, various industries such as electric power, steel, petrochemical, and large-scale machinery and equipment are in urgent need of new intelligent instruments, especially in energy management systems, network instruments It is an essential key instrument. [0003] In the conventional design of the existing power network instrument, the "watchdog" circuit is generally used to solve the fault problem of program flying out. However, for the problem of program flying out due to interference when the interrupt program is executed, the "watchdog" circuit cannot completely solve the problem of program recovery, and sometimes it cannot be recovered at all. Although the probabili...

Claims

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Application Information

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IPC IPC(8): G05B19/04G05B15/02
Inventor 陆顺云
Owner 上海德力西集团有限公司
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