A wireless heterogeneous sensor networks (WHSNs) is a kind of wireless sensor networks (WSNs), each sensor may have different sensing units. Sensing nodes can simultaneously monitor different attributes, such as various temperature, brightness, humidity, and so on. MUQC use the changes in number of sensing units and sensing units to adjust the probability of on mode and off mode. After several rounds, the operational number of sensors to achieve the desired number of targets. The result showed that MUQC can effectively schedule the activity of each sensing unit on each sensor to completely cover the targets of interest and turn on the sensing attributes of the sensors in the appropriate round.
The purpose of this study is to describe a practical mobile e-invoice system which can be applied by physical retail channels, managed by the users and accessed via the internet. During the checkout part of the operational procedure, the cashier scans the customer's identification card. The transaction details are delivered through the system to a rear-end data base. The record of process details forms the foundation of the database of stored information. Customers are immediately able to check on the details of current transactions through their cell phone connections. Technological development has made the expansion of such an ergonomics system for the manufacturing and service industries possible. Such a system could provide several functions designed to increase the users' conveniences and enjoyment.
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