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首页> 外文会议>Proceedings of the Thirty-Second Annual Conference on Explosives and Blasting Technique vol.2 >SDI Electronic Detonator System: All Spiced Up!
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SDI Electronic Detonator System: All Spiced Up!

机译：SDI电子雷管系统：全部加香！

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This paper describes the circuit simulations based on SPICE of the SDI Electronic Detonator System at the system level. SDI is launching the Electronic Detonator System with a robust serial protocol exhibiting great ease in field usability and deployment. Programmable delay time with increment of 1 ms up to 10s is possible. Bus length of up to 2 km containing 1600 detonators can be utilized. This system was analyzed using SPICE simulations and an Excel-based firing model spreadsheet. The effects of wire diameter, resistivity, detonator leakage characteristics, blasting array topology (lumped, linearly distributed or branched) were simulated using the firing model. Such spreadsheet is instrumental in determining the blasting topology of any given detonator number and bus wire diameter or resistivity. Initial simulation results were interactively coupled back into making the serial protocol more robust during typical mining conditions. Extensive simulations were performed on a 2.4 GHz Pentium 4 PC with 2GB RAM using Altium Designer on Windows XP. The EIM (electronic ignition module), wires, connectors and blasting machine were incorporated into the system model. Macromodels based on hierarchical circuit entry were obtained by classifying the subsystem modules consisting of ASIC, detonator, branch and overall system. 1600 detonators spread out over 2 km of lead wires and 8 branches of 1 km long bus wires plus 104 km of legwires were simulated. The operating dc points plus transient analysis were performed; bus leakage simulations were also done to demonstrate the robustness of the SDI system. It is well known that in electronic blasting, leakage current can be very detrimental to system communications. Every event in the blasting machine sequence was modeled and studied. Good correlation was found between simulation and actual field test results.
机译：本文在系统级别上描述了基于SDI电子雷管系统SPICE的电路仿真。 SDI正在推出具有强大串行协议的电子雷管系统，该协议在现场使用和部署方面都非常容易。可编程的延迟时间可以增加1 ms，最多10s。可以使用包含1600个雷管的长达2 km的母线长度。使用SPICE仿真和基于Excel的点火模型电子表格分析了该系统。使用点火模型模拟了导线直径，电阻率，雷管泄漏特性，爆破阵列拓扑（集总，线性分布或分支）的影响。这种电子表格有助于确定任何给定雷管数和母线直径或电阻率的喷砂拓扑。最初的模拟结果以交互方式耦合回去，从而使串行协议在典型的采矿条件下更加可靠。使用Windows XP上的Altium Designer在具有2GB RAM的2.4 GHz Pentium 4 PC上进行了广泛的仿真。 EIM（电子点火模块），电线，连接器和喷砂机已合并到系统模型中。通过分类由ASIC，雷管，分支和整个系统组成的子系统模块，获得了基于分层电路入口的宏模型。 1600个雷管散布在2 km的导线上，并模拟了8个1 km长的母线分支和104 km的引线。进行了工作直流点和瞬态分析。还进行了总线泄漏仿真，以证明SDI系统的鲁棒性。众所周知，在电子喷砂中，泄漏电流可能对系统通信非常不利。对喷砂机序列中的每个事件进行建模和研究。在仿真与实际现场测试结果之间发现了良好的相关性。

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