摘要
当前招标采购的工作量成倍增加,招标的种类增多,规范化操作难度大,因而设计了封闭式评标基地,建立智能化评标体系,基于ZigBee形成MESH网络,网络协调器建立无线网络,路由节点加入网络并扩展网络覆盖范围。采用无载波的脉冲无线电超宽带技术实现高精度定位,实时显示评标人员位置信息,并对存在的不规范活动进行报警。位置探测器的节点设备采用CC2530芯片,射频收发器集成在主控芯片中,优化射频电路匹配天线的输入阻抗。实验结果显示,本研究评标基地的无线网络数据传输速率最快,将实验样本数据传输到展示层显示使用时间最短。
The workload of current bidding and procurement has increased exponentially, the types of bidding have increased, and standardized operation is difficult. This study designs a closed bid evaluation base, establishes an intelligent bid evaluation system, forms a MESH network based on ZigBee, and a network coordinator establishes a wireless network. The routing node joins the network and expands the network coverage. Carrier-free pulse radio ultra-wideband technology realizes high-precision positioning, real-time display of bid evaluation personnel location information, and alarms for irregular activities. The node equipment of the position detector uses the CC2530 chip, and the radio frequency transceiver is integrated in the main control chip to optimize the radio frequency circuit to match the input impedance of the antenna. The experimental results show that the wireless network data transmission rate of the bid evaluation base of this research is the fastest, and the experimental sample data are transmitted to the display layer to show the shortest usage time.
作者
刘利平
林俊昌
李远景
谢钢
赵文彬
阮亮
LIU Liping;LIN Junchang;LI Yuanjing;XIE Gang;ZHAO Wenbin;RUAN Liang(China Southern Power Grid Supply Chain Group Co.,Ltd.,Guangzhou 510000,China)
出处
《微型电脑应用》
2023年第2期84-88,共5页
Microcomputer Applications
关键词
评标基地
智能系统
网络协调器
MESH网络
超宽带定位
bid evaluation base
intelligent system
network coordinator
MESH network
ultra wide-band positioning
