摘要
在灌溉远程自动控制系统中,数据通讯部分的工程投入,一般占工程总投入的50%以上。该文根据工程实践,从数据传输部分入手,将经济组网方式、无线半双工窄带高速数据通讯技术、先进的数据库访问连接技术以及错开水泵开关与数据采样、数据传输的时间等抗干扰技术措施,应用于地下水限量开采自动控制系统。有效地降低了工程造价,使灌溉远程自动控制系统的整体技术经济性能得到了显著提高。
In the remote automatic control irrigation system, the cost of data communication, generally accounts for 50% of the total input of the project. According to the practice of the engineering, starting from the part of data transmission, low cost network, wireless half duplex high-rate data communication based on narrowing the transmission bandwidth of radio channel, database ADO technique, and the anti-interference technology such as shunting the water pump switching time with the time of the data collection and communication and were applied to the automatic control system for groundwater limited exploration. The engineering construction price was lowered, and the technique economy of the whole system was remarkably improved.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2005年第z1期20-22,共3页
Transactions of the Chinese Society of Agricultural Engineering
基金
"863"项目(2001AA242111)
"十五"国家科技攻关项目(2001BA508B02)
"863"项目(2002AA2Z4241)
关键词
灌溉
地下水
远程控制
限量开采
组网方式
irrigation
groundwater
automatic control
limited exploration
network
