组态软件中功能模块设计

本文针对矿井综合监控系统的需求,研究了矿用组态软件中最具普遍意义的功能模块的设计方法.     

Digital Solution to Mining Image Monitor System

The thesis describes an advanced digital solution to mining digital image monitor system,which makes up the shortage of the traditional mining analog image monitor. It illustrates the system components and how to choose the encoder bandwidth of the system. The problem of image multicast and its solution in LAN are also discussed.     

矿井无线电波防爆安全发射功率研究

5G,5.5G,WiFi6,WiFi7,UWB,ZigBee等矿井移动通信系统及人员和车辆定位系统等发射的大功率无线电波有点燃瓦斯和煤尘的风险。因此,需要合理设置防爆无线电设备发射的无线电波防爆安全功率阈值,限制防爆无线电设备发射的无线电波功率。欧洲标准CLC/TR 50427:2004《Assessment of inadvertent ignition of flammable atmospheres by radio-frequency radiation-Guide》规定了爆炸性气体环境中无线电波防爆安全接收点火功率阈值,但缺少无线电波防爆安全发射功率阈值的内容。国家标准GB/T 3836.1—2021《爆炸性环境第1部分：设备通用要求》和国际标准IEC 60079-0:2017《Explosive atmospheres-Part 0:Equipment-General requirements》虽然有无线电波防爆安全发射功率阈值的相关规定,但错误地将欧洲标准CLC/TR 50427:2004中的无线电波防爆安全接收点火功率阈值修改为无线电波防爆安全发射功率阈值,大大降低了爆...     

矿井无线传输通用截止频率的研究

分析了我国矿井工作面及巷道的无线传输通用截止频率，得出了全矿井无线传输通用截止频率为２４６ＭＨＺ的结论。     

Image mathematical morphology and image restoration application in detecting underground bin level

By using image recognition technology, the underground bin level can be detdcted. The bin image is noised by vibration, atomy, backgroun and so on. The image estoration and image mathematical morphology were used based on neural network.A modified Hopfield network was presented for image restoration. The greed algorithm ith n-simultaneous updates and apartially asynchronous algorithm were combined, improving convergence and avoiding synchronization penalties. Mathematical morphology as widely applicated in digital image processing. The basic idea of mathematical morphology is to use construction element measure image morphology for solving understand problem. Presented advanced Cellular neural network that forms MMCNN equation to be suit for mathematical morphology filter. It gave the theory of MMCNN dynamic extemt and stable state. It was evidenced that arrived mathematical morphology filter through steady of dynamic precess in definite condition. The results of implementation were applied in detecting undergroug bin level.     

DSP极低码率的远程视频监控系统

笔者以TI的低成本DSP芯片F206为例,介绍了一种基于此芯片的极低码率双绞线视频图像监控系统,包括它的整体方案,及实现时的一些难点解析。实践表明:此系统经济、实用且具有广播能力。     

爆炸性环境用单片机应用系统的设计方法

简述了在有爆炸危险的煤矿环境中，单片机应用系统设计工作要考虑的技术性能指标确定、电气防爆型式的选择、硬件功能的划分、芯片的选择、抗干扰及电气防爆设计等方面的内容。其中。以大量篇幅介绍了由空间、电源和通道因素引起干扰的具体防护措施。