Smart grid security has many facets, ranging over a spectrum from resisting attacks aimed at supervisory and control systems, to end user privacy concerns while monitored by the utility enterprise. This multi-faceted problem also includes vulnerabilities that arise from deployment of local cyber-physical attacks at a smart metering location, with a potential to a) manipulate the measured energy...

In view of the low seeding efficiency and precision seeders used for Brassica chinensis in China, a new double-row pneumatic metering device was designed, fabricated, evaluated. With characteristics small size high sphericity seeds mind, structure key dimensions plate were determined, force analysis seed-filling process carried out. The negative pressure (NP), angular velocity (AV) plate, cone ...

To realize the real-time monitoring of cotton precision seeding operation process and improve intelligence level planters, based on automatic color matching detection technology visualization technology, this study designs a system for sowing quality planters. The is double-silo turntable type vertical disc hole seed metering device as research carrier, composed missed module module. Among them...

Wireless communications and device miniaturization are enabling pervasive scenarios where the limited resource availability and the wide heterogeneity of access terminals make crucial to provide mechanisms and tools for the dynamic adaptation of Quality of Service (QoS). Particularly in case of very resource-consuming services QoS levels should be downscaled to fit the specific characteristics ...

In order to solve the problems of domestic and foreign vegetable precision metering devices that easily damage seeds have low seeding efficiency poor qualification rate, this paper designs a one-machine for two-row pneumatic combination seeder, which is mainly composed mechanism honeycomb mechanism. The other components theoretical analysis working process combined seed device clarifies minimum...