High-reliability and high-precision electronic detonator detonation system and method

Abstract

The invention relates to the technical field of initiating explosive devices and discloses a high-reliability and high-precision electronic detonator detonation system and method. The system comprises an MCU control circuit, a communication circuit, a boosting and detonating circuit, an energy storage and electric discharge capacitor, an ignition device detecting circuit and a time synchronization algorithm. The energy storage and electric discharge capacitor and the ignition device detecting circuit are in signal connection with the MCU control circuit to be used for continuously detecting a detonation key device in an electronic detonator, the energy storage and electric discharge capacitor and an ignition device, detection means to detect whether the devices keep a normal working state or not before detonation, a detonation instruction can be sent out only when the working state is normal, the phenomenon of misfire detonation caused by device breakdown when the detonation instruction is sent out can be eradicated, and reliability of detonation of the electronic detonator is ensured. According to the time synchronization algorithm, by means of main and auxiliary clocks of a detonating primer and the electronic detonator, bi-directional data communication is carried out, by means of a delay responding mechanism, time synchronization precision of the sub-microsecond level is achieved, and time precision of electronic detonator detonation is improved.

Description

technical field [0001] The invention relates to the technical field of pyrotechnics, and relates to a high-reliability and high-precision electronic detonator detonation system and method. Background technique [0002] Electronic detonators, also known as digital electronic detonators, digital detonators or industrial digital electronic detonators, are electric detonators that use electronic control modules to control the detonation process. The electronic detonator detonation system basically consists of an electronic detonator and a detonator; the detonator is used to control the programming and trigger detonation of the entire blasting network. [0003] The general concern of blasting users, especially electronic detonator users, is still reliability. In the prior art, the electronic detonator is detonated before the detonation network is connected to the communication detection of the electronic detonator. The above detection refers to the detection of whether the commu...

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Problems solved by technology

In the prior art, the electronic detonator is detonated before the detonation network is connected to the communication detection of the electronic detonator. The above detection refers to the detection of whether the communication between the electronic detonator and the detonator through the foot wire is normal and whether the ignition device is connected. It is impossible to know the energy storage discharge of the key device for detonation. Whether the parameters of the capacitor and the ignition device are normal, and between the above detection and the detonation operation, there are detonator installation and wiring and the installation process of explosives. Since the detonation operations are all in the field and the working environment is complicated, it is easy to correct them during the operation. The electronic detonator is squeezed and dropped, and the detonator is damaged, but after the detonation network is connected, the detonation system does not detect the key components of the detonation, the energy storage discharge capacitor and the design of the ignition device, so that when the above-mentioned components are damaged, the detonation continues to be detonated online. During the operation, the electronic detonator "refused to explode" occurred, and the high reliability of the electronic detonator could not be achieved.

At the same time, the electronic detonator is used for blasting operations, and the time accuracy is required to be above 1ms. However, in the existing technology, the bus baud rate is low and it is difficult to meet the high-precision requirements after the detonation command is issued.

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