Who is Harvard? Harvard is a well established, privately owned and UK based, manufacturer of electronic products. Harvard develops and manufactures Ballasts, Drivers and Light Engines. It is also importantly a developer of software products. The market sector is lighting and the reach global. Electronic hardware in the form of ballasts for the traditional discharge lamp market has been part of the business since the early days. The advent of LED technology saw a rapid expansion into LED drivers which today represents the biggest single contribution to revenue. This is complemented with the capability to design and produce LED light engines. It is in the field of software that Harvard is an undisputed leader. Harvard pioneered outdoor wireless control for street lighting. Today, in the UK alone LeafNut manages more than 500,000 street lights. Two years ago Harvard introduced a completely new indoor wireless control system called EyeNut. It is ground breaking in what it does and what it offers. This PowerPoint introduces Harvard and provides an overview of the EyeNut system.
Who is Harvard?
Who is Harvard?
Who is Harvard?
Who is Harvard?
What is EyeNut?
What is EyeNut?
What is EyeNut? EyeNut is a wireless control and monitoring system for interior lighting. EyeNut provides Users complete control of their lighting asset. EyeNut controls energy usage and thus enables reduction of carbon emissions. EyeNut is infinitely customisable. EyeNut works in existing buildings and is ideal for retrofit LED installations. EyeNut works in new buildings and is a no brainer for incorporation into a new LED lighting system. EyeNut saves money
What is EyeNut? EyeNut requires a central server or Hub. This is hosted in the so called Cloud thus providing improved security, stability, accessibility, and flexibility. The Hub reduces installation time and the hardware units required. This also enables access to software and firmware updates as they occur. The Hub can host any number of Gateways with each Gateway supporting 500 devices. Gateways may be in different locations thus the system is designed to operate across multiple sites. The Hub also hosts the user interface and reports and analyses data from the installation. Multiple users can access the system simultaneously.
What is EyeNut? The Gateway represents the local (on site) point of control. It will handle up to 500 devices. It operates using the 2.4GHz ZigBee protocol making it compatible with a wide variety of lighting equipment. Connection is to the mains supply and to the Internet via the conventional Ethernet RJ45 connector.
What is EyeNut? The Adaptor [1] is the interface between EyeNut and the driver (which is still required) controlling the various luminaires. It converts the wireless signal into DALI, 0-10V & 1-10V outputs. Each Adaptor can run up to 12 compatible drivers. The EyeNut Driver [2] combines Adaptor and Driver into the one housing and thus simplifies the install. A third option is available using a compact Dongle [3] when the Harvard CL Series 33W driver is either being installed or retro-fitted. The resulting interface creates the monitoring function. Switching is now enabled as well as dimming from 1-100%. There is an on-board metering chip to provide energy management, actual power consumption and savings identification. 1 2 3
EyeNut Sensor What is EyeNut? The Sensor is the means by which ambient light and occupancy levels are detected and communicated. The device uses the functionality within EyeNut to make changes and thus savings including daylight harvesting. Commercially available sensors conforming to the ZigBee Home & Building Automation profiles can connected to the EyeNut system
EyeNut Sensor What is EyeNut? The Switch comes in 4 versions, 1, 2, 3 button plus a twin button dimmer switch. It operates wirelessly using the ZigBee protocol. It is powered by 2 AAA batteries has a range of up to 50 metres and can be mounted in any plane.
What is EyeNut? The User Interface provides remote and direct access to the lighting asset. This can be by PC, laptop or Tablet. A single site can be monitored and controlled. Multiple sites can be compared.
Example: Chemist Store Sheffield England
The Mapping Tool permits the import of an image of the space concerned. A view of the lighting points is overlaid and via the profiling feature the lighting can be organised into groups e.g. ambient, accent, perimeter etc..
The Mapping Tool permits the import of an image of the space concerned. A view of the lighting points is overlaid and via the profiling feature the lighting can be organised into groups e.g. ambient, accent, perimeter etc..
Lighting Zone Existing Power Consumption New (LED) Power consumption Perimeter 88W 58W Aisle 56W 12W Accent 112W 32W Ambient 70W 29W Lighting Zones controlled independently Sensors in each zone measuring occupancy Time schedule layers the lighting in response to occupancy Time schedule for staff training, stocking, cleaning etc.
The results Combined Lighting kw 40 35 30 25 20 15 10 5 0 00:00 06:00 12:00 18:00 00:00 Time Before control With control
kw The results Combined Lighting 40 35 30 25 20 15 10 5 0 00:00 06:00 12:00 18:00 00:00 Time Power Consumption/day Before LED Conversion After LED Conversion With EyeNut Results: 5.6W per M² 1500KWH 580KWH 330KWH Two year payback for EyeNut Before control With control
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