Programmable electronic detonator control chip and its control flow

Abstract

The invention provides a programmable electronic detonator control chip which comprises a bridge rectifier circuit, an ignition control circuit, an energy management module, a communication interface circuit, a power management circuit, a nonvolatile memory, a clock circuit and a logic control circuit, wherein, the logic control circuit comprises a programmable delay module, an input / output interface, a serial communication interface, a prescaler and a central processing unit (CPU). The invention further provides the control flow of the chip, which comprises the following steps: the programmable delay module is initialized, and the ignition control circuit is caused to be in an ignition prohibition state; the CPU reads electronic detonator identity codes in the nonvolatile memory; the prescaler is initialized, namely a predetermined frequency division value is written in the prescaler; the CPU waits to receive an instruction sent out by an external device; and then CPU executes a write delay process when receiving a write delay instruction, and executes an ignition process when receiving an ignition instruction. Therefore, the invention provides an electronic detonator control chip which can program delay time.

Description

technical field [0001] The invention relates to the technical field of pyrotechnics manufacture, in particular to the further improvement of the implementation mode of the electronic delay of the electronic detonator control chip. 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 ZL03156912.9, patent application documents 200820111269.7 and 200820111270.X realizes the two-wire non-polarit...

AI Technical Summary

Problems solved by technology

Due to the limitation of sections, the number of sections of such detonators is difficult to meet the application requirements of large-scale differential blasting engineering

[0007]3. Since there is a delay in the detonator, when laying out the blasting network, the detonator and the blasting hole must correspond one by one, otherwise it will lead to the failure of the blasting process

This leads to procurement complexity and waste of product

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