Method and circuit for electronic detonator communication bus arbitration protocol

Abstract

The invention discloses a method for an electronic detonator communication bus arbitration protocol, and provides a hardware circuit design scheme required for realizing the method, so that a manual registration process before blasting operation is omitted. The bus arbitration method has the characteristics of low bus signal change frequency, and stable reliability, and is suitable for non-polar connection, and namely, arbitration can be achieved no matter what polarity of bus voltage is. According to the hardware circuit design scheme, the influence of distribution parameters like line resistance on current and voltage is fully considered, and the hardware circuit design scheme has very high adaptability. The problems that existing electronic detonator network communication needs manual registration and is poor in reliability are solved.

Description

technical field [0001] The invention belongs to the field of electronic detonator communication, in particular to a method and circuit for electronic detonator communication bus arbitration in two-wire parallel network communication, especially suitable for two-wire communication between parallel networked electronic detonator and special detonating equipment , can be widely used in civil blasting equipment industry. Background technique [0002] Electronic detonator technology has been developed for nearly 30 years. China started relatively late in this area, but has made considerable progress over the past ten years. The market share in the national industrial electric detonator has grown rapidly, and it is expected to become the main replacement product in the next few years. At present, more than a dozen domestic electronic detonator products have their own technical advantages, and there is no uniform standard, nor does any one have an overwhelming technical advantage,...

AI Technical Summary

Problems solved by technology

[0027] In order to overcome the shortcomings of the existing electronic detonator network communication that requires manual registration and poor reliability, the present invention provides a bus arbitration for electronic detonator communication that eliminates the manual registration process before blasting operations, has low bus signal change frequency, and is stable and reliable. method, and give the hardware circuit required to realize the method

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