Priming control method for electronic detonator priming circuit

Abstract

The invention provides a method for controlling the priming of the priming circuit of an electronic detonator. The method comprises a priming control process of the priming circuit of the electronic detonator on one hand and a priming control process of the electronic detonator on the other hand. Firstly, the priming device carries out pre-firing control process to the electronic detonator, sendsa pre-firing instruction to a detonator in an accurate condition, and places a pre-firing finish marker on the detonator after receiving pre-firing response information sent back by the detonator. Then, when the external priming cancelling information is received, the priming device enters an priming cancelling condition, sends a safe discharging instruction to the detonator, and places a pre-firing un-finish marker on the detonator; when receives external continuing priming information, the priming device enters a continuing priming condition, and carries out priming instruction sending process, and the detonator enters firing process as soon as a correct priming instruction is received. The technical scheme realizes the control over the synchronicity of the priming processes of the priming circuit of the electronic detonator, thereby improving the accuracy of priming intervals controlled by the priming circuit.

Description

technical field [0001] The invention relates to the technical field of pyrotechnics application, in particular to a synchronous detonation control method for an electronic detonator detonation network. Background technique [0002] In the 1980s, Japan, Australia, Europe and other developed countries began to study electronic detonator technology. With the rapid development of electronic technology, microelectronic technology and information technology, electronic detonator technology has made great progress. In the late 1990s, electronic detonators began to be put into application testing and marketing. [0003] As the core component of the electronic detonator, the performance of the electronic detonator control chip directly affects the performance of the electronic detonator. The electronic detonator control chip given in the patent application documents 200820111269.7 or 200820111270.X and the patent ZL03156912.9 realizes the two-wire non-polarity connection of the ele...

AI Technical Summary

Problems solved by technology

Since the clock frequency of the RC oscillator has a large discreteness, and the time required for each detonator to identify and process instructions depends on the clock frequency of the internal RC oscillator of each detonator, so this direct to each The detonation control scheme in which the detonator sends a global detonation command will lead to poor start synchronization of the delay modules in the electronic detonators, which will affect the control accuracy of the detonation interval of the entire blasting network

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