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    The design of an electric fence monitoring system : a thesis presented in partial fulfilment of the requirements for the degree of Master of Technology in Production Technology at Massey University
    (Massey University, 1996) Adamson, Paul Robert
    This thesis presents the design of an Electric Fence Monitoring System (EFMS) which detects and announciates fence malfunctions indicating operational ineffectiveness. The EFMS consists of a master unit and up to sixteen slave units. Each slave unit monitors a single remote point on the fence. Slave units gain their power from the electric fence pulse itself. They use a unique transmission algorithm to transmit the peak electric fence voltage, to the master unit. The electric fence wire is used to convey this transmission. The master unit uses a non-linear switched capacitor filter with variable gain control, to detect the slave unit transmissions. This unit displays the peak voltage at each monitored point and allows the setting of alarm trigger points. This thesis includes modelling of the electric fence energiser and typical electric fence line, and the detailed design of the two units that makeup the EFMS.
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    A new breed : wired for success : redefining the possibilities of solar powered electric fence energizers.
    (Massey University, 2014) Marks, Nicholas R
    Gallagher, world renowned for their electric fencing innovations, requested ways to develop their solar powered energizer range. The intent of this project was to work with Gallagher product specialists to identify key market gaps and use them to develop a conceptual design proposal for a new solar charged, battery powered electric fence energizer. Industrial design literature investigations provided a foundation for this project and specific methods were used to identify and utilize key information from the Gallagher product and energizer range and Gallagher’s competition. Other strategic research areas included; context of energizer use, common energizer issues, market gaps/opportunities, ergonomic principles, safety aspects, manufacturing guidelines and relevant state of the art technologies. The core research methods used to support the investigation and consider industrial design and business requirements were; market analysis, ethnography, surveys, informal expert interviews and focus group meetings with Gallagher departmental managers. Structured concept generation, test rigs, mock-ups, models, iterated design development and CAD renderings ensued. A potential market gap was discovered through these explorations where isolated farm blocks needed electric fencing, but had no mains power. The unit needed to be semiportable, yet had to have the potential power to supply the equivalent of mains powered energizer capabilities. Solar powered technology has widened the scope for design to solve this scenario, which provided the starting point for initial design concepts. The product was required to solve issues and objectives (functionality), be intuitive, easy to use and practical (usability), and appeal to the target market (desirability). The final design proposal is a modular energizer unit which allows the end user to customize the system to suit their individual needs. This investigation aimed to fulfil Gallagher’s brief to expand their solar powered energizer range, and uncover any other potential product opportunities in the market.