Digital electronic detonator chip based on double-wire bus and control method

Abstract

The invention relates to a digital electronic detonator chip based on a double-wire bus and a control method. The chip adopts the non-polar and one-leader-multiple-follower half-duplex type double-wire bus with communication and power supply functions, and communication of an amplitude and pulse width modulation modes is supported; during pulse width modulation communication, a downlink communication standard pulse width value can be configured according to needs, and a uplink communication standard pulse width value is fixed; the chip comprises all the function modules for completing the detonation operation and a communication instruction set, a charging voltage value can be externally configured; the chip control method is composed of 'detonator chip information injection and detonatorchip on-site detonation'; and through the mode, the digital electronic detonator chip and the control method can meet requirements and practical application demands of the latest Chinese public security industry standard, namely the 'Industrial Electronic Detonator Information Management General Rule(GA1531-2018) ', the anti-interference performance and the communication safety reliability are improved, the application scene is expanded, the configurability and the detonation safety of the chip are improved, the control process is standardized, improper operation is avoided, and the comprehensive cost is reduced.

Description

technical field [0001] The invention relates to the technical field of digital electronic detonators, in particular to a digital electronic detonator chip and a control method based on a two-wire bus. Background technique [0002] With the development of microelectronics technology, digital technology, encryption technology, etc., digital electronic detonators (hereinafter referred to as electronic detonators or detonators) have been rapidly developed and applied. Development Direction and Goals (Draft for Comments)” mentioned in the notice that “the proportion of electronic detonators will reach 100% by the end of 2025”, improving the safety, reliability, accuracy and environmental protection of blasting, and reducing the overall cost. [0003] Relevant national ministries, commissions, and bureaus have formulated corresponding industry standards and implementation rules. For example, the Ministry of Public Security of China issued and implemented the "General Rules for Inf...

AI Technical Summary

Problems solved by technology

[0004] However, there are some deficiencies in the technology of the existing digital electronic detonator control chip (hereinafter referred to as the detonator that contains digital electronic detonator chip). For example, the detonation energy is "low voltage and low energy". Sensitive drug heads must be used, which increases the production cost. , the application scenario has limitations; the charging voltage is not configurable, which limits the expansion of the application scenario; even if the clock can be calibrated online, the on-chip clock frequency accuracy is not high, resulting in large timing errors and affecting the precise blasting effect; the maximum anti-DC voltage is only 60V ; There are few safety measures, such as no emergency discharge command; it does not support pulse width modulation communication mode and the downlink standard pulse width value can be configured; the bus communication distance is limited, and the communication is greatly disturbed by the environment; the control method does not conform to the latest "Industrial Electronic Detonator Information Injection General Rules (GA1531-2018)" requirements, etc.

Images