基于开关矩阵的多通道信号切换设备研制  

Development of Multi-channel Signal Switching Device Based on Switch Array

作　　者：龚靖傑 邓哲[1] 王家乐[1] 张永亮[1] 张梦妍[1] GONG Jingjie;DENG Zhe;WANG Jiale;ZHANG Yongliang;ZHANG Mengyan(Beijing Institute of Structure and Environment Engineering,Beijing 100076,China)

机构地区：[1]北京强度环境研究所,北京100076

出　　处：《计算机测量与控制》2021年第7期264-268,共5页Computer Measurement &Control

摘　　要：为提高多通道信号系统的硬件资源利用率和信道切换效率,使用AD75019型宽信号范围模拟开关矩阵为核心设计了一款信号切换设备;设备支持外接电源和内置电池的双电源供电模式,并可通过触摸式液晶屏完成通道间连接状态的配置,确保了设备使用的便利性和灵活性;同时接口采用了高密度接插件进一步减小了设备的体积和重量,提高了产品的便携性;测试试验证明,信号切换设备实现了32输入至32输出通道之间任意组合的连接和切换,且配置完成后的通道切换响应时间小于100 ms,使用该设备避免了多通道信号系统中整理线缆和插拔接口的工作,能够显著的提高系统的信道切换效率和配对可靠性,可广泛应用于大型测量、控制和试验系统中。To improve hardware resource utilization and channel switching efficiency of multi-channel signal system,a signal switching device using wide signal range analog switch array AD75019 as core component has been designed.This device supports dual power supply mode of external power source and built-in rechargeable battery,and can configure connection state between channels through touch liquid crystal display screen,which ensure convenience and flexibility of the device.Meanwhile,a high density connector is used to further reduce device’s volume and weight,which also improve portability of the product.Test result shows that any connection and switch between 32 input channels to 32 output channels can be made by this signal switching device,and channel switching response time is less than 100 ms after completing the channels connection configuration.This device can avoid works of sorting out cables and plug/unplug interfaces in multi-channel signal system,which significantly improve channel switching efficiency and pairing reliability of the system.This device can be widely used in large-scale measurement,control and test systems.

关 键 词：开关矩阵 多通道信号系统 便携式 AD75019芯片 信号切换 双电源模式 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]