Quick charging method for energy-storage capacitors of electronic detonators

Abstract

The invention discloses a quick charging method for energy-storage capacitors of electronic detonators. The method comprises the following steps: controlling the output voltage of a bus in a control host in two stages by the control hosts: in the first stage, increasing the bus output voltage from 0V to a safe voltage V1 gradually, and under the safe voltage V1, controlling the electronic detonators to charge energy-storage capacitors therein to increase the voltage from 0V to the V1 so as to detect whether the electronic detonators are normal or not; in the second stage, increasing the bus output voltage from V1 to an initiation voltage V2 gradually, under the voltage V2, adopting a closed-loop charging control method for charging all the electronic detonators in a network at the same time so as to achieve charging to the electronic detonators, and when the control host and the electronic detonators are networked, the control host quickly accomplishes an initiation operation procedure after confirming the functions of all the electronic detonators in thenetwork; and during an initiation process, all the electronic detonators in a network enter into a relatively dangerous ready initiating preparation state, the time for the ready initiating preparation state is relatively short, and the occurrences of safety accidents are effectively reduced.

Description

technical field [0001] The invention relates to a fast charging method for an energy storage capacitor of an electronic detonator, which belongs to the technical field of electronic detonators. Background technique [0002] At present, in the detonation process of parallel-connected electronic detonators, the control host needs to charge the energy storage capacitor in the electronic detonator through two busbars before sending out the detonation command; due to the limited output power of the boost circuit in the control host, when the electronic detonator in the network After the number of detonators exceeds a certain number, all the electronic detonators connected in parallel to the two busbars output by the initiator, that is, the control host, will charge too much current at the same time, which will easily damage the booster circuit. way of charging. There are many charge-by-shot charging processes for charging the energy storage capacitor, but there are mainly the fo...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a fast charging method and device for an energy storage capacitor of an electronic detonator, so as to solve the problems in the above-mentioned prior art that the charging time is too long and that the electronic detonator is in a relatively dangerous high-voltage state for too long before detonation. , to overcome the deficiencies of the existing technology

Images