A multi-point blasting system and working method based on optical fiber energy supply

Abstract

The invention provides a multi-point blasting system and working method based on optical fiber power supply, including optical fiber, laser, photovoltaic cell, pulse generator and detonation device. The pulse generator modulates and outputs a programmable pulse, and the subsequent laser receives the pulse. Pulse signal and output optical pulse signal, and then transmit to photovoltaic cell through optical fiber, photovoltaic cell converts optical pulse signal into electrical signal, transmits it to detonating device through wire, triggers detonating device to detonate explosives inside detonating device. The control of multiple detonating devices is accomplished through multiple optical fibers, thereby realizing multiple-point blasting. Because the optical fiber is resistant to electromagnetic interference, and the transmission interference between different optical fibers is low, blasting can be completed in special environments (such as anti-high-voltage electricity, strong magnetic field interference), and has strong anti-interference.

Description

technical field [0001] The invention relates to the technical field of multi-point blasting, in particular to a multi-point blasting system and a working method based on optical fiber energy supply. Background technique [0002] In the initial stage of construction of bridges and mines, blasting devices are often used to carry out multi-point blasting treatment on some mountainous areas with complex and difficult terrain, so as to carry out efficient and rapid terrain treatment of the construction site. However, the existing blasting devices and methods only use artificial extension. Explosive fuzes or setting timing devices are used for blasting operations. The way of manually extending explosive fuzes requires consideration of environmental factors on the way to extend the fuzes, and the applicability is low. The use of timing devices can only be used for a single operation and cannot be reused, resulting in large losses. . [0003] Multi-point blasting technology is also...

AI Technical Summary

Problems solved by technology

[0004] The existing blasting operation methods are greatly affected by the environment. For example, in the environment of high voltage or strong magnetic field, the transmission of electric wires will be subject to strong electromagnetic interference, which is prone to accidental blasting; moreover, the transmission loss of electric wires is high, and it is difficult to To achieve long-distance, high-precision multi-point blasting, the applicability is low; therefore, there is an urgent need for a multi-point blasting system that is resistant to electromagnetic interference, high precision, and strong applicability

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