Optical fiber energy supply based multi-point blasting system and operation method

Abstract

The invention provides an optical fiber energy supply based multi-point blasting system and an operation method. The optical fiber energy supply based multi-point blasting system comprises optical fibers, laser devices, photovoltaic cells, a pulse generator and priming devices. The pulse generator conducts modulation to output a programmable control pulse. The following laser devices receive the pulse signal, output optical pulse signals and transmit the optical pulse signals to the photovoltaic cells through the optical fibers. The photovoltaic cells convert the optical pulse signals into electric signals and transmit the electric signals to the priming devices through wires. The priming devices are triggered to detonate explosives in the priming devices. The optical fiber energy supply based multi-point blasting system controls the multiple priming devices through the multiple optical fibers so as to realize multi-point blasting. Moreover, the optical fibers are resistant to electromagnetic interference, and transmission interference between the different optical fibers is low. The optical fiber energy supply based multi-point blasting system can complete blasting in special environments (such as high-voltage resistant environments and high-intensity magnetic field interference environments) and has strong anti-interference performance.

Description

Technical field [0001] The invention relates to the technical field of multi-point blasting, in particular to a multi-point blasting system and working method based on optical fiber power supply. Background technique [0002] In the initial stage of bridge and mine construction, blasting devices are often used to perform multi-point blasting treatment on some mountainous areas with complex terrain and difficult to handle, so as to perform efficient and rapid terrain treatment on the construction site. However, the existing blasting devices and methods only use manual extension Explosive operations are carried out by means of explosive fuze or a timing device. The use of manual extension of explosive fuze requires consideration of environmental factors in the way of prolonging the fuze. The applicability is low. Timing device can only be used for a single operation and cannot be used repeatedly, resulting in greater loss. . [0003] Multi-point blasting technology is often used in ...

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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