| Vizion allows for each Node to be individually controlled. There are three different triggers to turning streetlights on and off: | |
| • | Time Activation - The streetlight turns on/off (and to any dim levels programmed within the time profile) at specific times. Each day of the week can be programmed separately allowing a very flexible control regime to be established |
| • | Solar Clock - Activation The streetlight turns on and off under the control of a solar clock built in to the Collector. Offsets can be programmed into both the switch on and off times. Timed part-night or part night multiple stage dimming can also be programmed with daily time profiles allowing day-dependant control regimes. |
| • | Photocell Activation - The streetlight turns on and off under the control of a photocell built-in to the Collector. Timed part-night or part night multiple stage dimming can also be programmed with daily time profiles allowing highly flexible control regimes. |
| You can define up to eight different Time Profiles. Each allows for up to twelve different switching operations separately programmable for each day of the week. For each switching operation you can select either: | |
| • | ON (Lamp at 100%) |
| • | ON (Lamp at 75%) |
| • | ON (Lamp at 50%) |
| • | OFF |
| Dimming can’t be achieved using a NEMA Node, it is only possible with a ZEBC electronic ballast and a Ballast Node. | |
| Time Profiles are used in combination with the activation type to produce the required switching regimes. | |
| Given the suitable combination of activation type and Time Profile it is simple to produce advanced time profiles to accommodate the actual lighting need, without having to ‘over-light’ for the majority of the time to achieve the ‘peak’ demands. |
| In combination with ‘Photocell’ or ‘Solar-Clock’ activations it is possible to produce control regimes that turn the lamp on at dusk, and then implement a part-night multi-stage dimming scheme with different switching times on Monday-Friday than the weekend (or any other combinations of days of the week). Late night shopping can easily be accommodated by applying a different time-profile for Thursday (for example). It is this power and flexibility that allows for very specific control regimes to be developed. |
| One of the fundamental issues for the future deployment of any CMS is scalability. The whole architecture of Vizion is built around scalability and ease of extending schemes without having to re-engineer the existing installation. |
| Vizion is designed for operating from 2 to over 200,000 lights on the same ‘Vizion Host’. To add additional lights (fitted with suitable Nodes) to a system it is simply a matter of installing the lights, adding their details to the system and either associating them with an existing Collector (if there is capacity on that Collector) or installing appropriate new Collectors around the scheme. |
| The scaling of the Vizion Host is addressed by Zodion as part of our Service level Agreement. |
| Vizion CMS has the benefit of complete interoperability with other WiMAC products. This ensures that you have the security of supply, peace of mind and freedom of choice to select your products from any compatible supplier. The WiMAC protocol communicates on multiple radio channels to provide secure and reliable communication between the Collector and Nodes. |
| Vizion offers a comprehensive range of system services enabling you to manage your street lighting network. Routine system reporting includes details of: | |
| • | Predictive and actual lamp faults |
| • | Ballast faults |
| • | Communication faults |
| • | Poor power factor (NEMA Node) |
| • | Environmental details (sunrise/sunset/temperature etc) |
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| The energy usage of each street light can be accessed via the Power Consumption Reporting service. This allows you to monitor the energy usage of the street lighting installation. In addition the Vizion Host produces the necessary control and event files to fulfil the requirements laid down by Elexon to allow the output of the system to be accepted into settlement. For a further explanation about acceptance of CMS into settlement please see the following article. |
| Please provide link to explanatory document |
| Control regimes can be quickly and easily modified, this provides for a flexible approach to unexpected events. The event could take several forms from a concert, local peak in crime, traffic diversion, to a sudden steep rise in energy costs requiring implementation of a more aggressive regime. |
| New regimes can be implemented by simply updating individual Time Profiles, and if applicable Activation Types or applying existing Profiles to the streetlighting inventory either individually, or in groups. The changes are implemented by updating the Collectors, which in turn update the Nodes. |
| From this it can be seen that changes can be made in a few moments and implemented in a few hours. |
