Presentation Transcript

1. Controls Uncovered

   Presented by FAB Controls Ltd
2. Introduction FAB Controls Ltd We are controls consultants, designers and commissioning service providers to the commercial lighting sector focusing on : Addressable lighting control systems Daylight saving Automated emergency testing. Jeremy Turner – Managing Director www.fabcontrols.co.uk
3. What am I here for? Today I am going to talk you through some of the ways we developed a campus wide lighting control system at the University of Bath. The University of Bath has over 15,000 students enrolled with over 25 % from outside the UK. The University is based on one large campus with many buildings in use 24 hours. In 2012 the university began an extensive campus investment program. FAB Controls have been instrumental in the development of a unified lighting control and management system. So how did we do it.
4. Campus Map
5. D A L I DALI – Digital Addressable Lighting Interface The key to managing a wide estate of light fittings is to be able to control and monitor them. DALI fits this need as its is possible to address each fitting and read back its status. With DALI each fitting is fed with an un switched 240 volts main supply and a two wire control cable. It’s theoretically possible to have up to 64 fittings on each control cable, but in practice we recommend no more than 50. The DALI control line supplies power and control on the same cable. Each device takes typically 1 or 2 mA.
6. Lighting & IT meet The University like many corporations already has an extensive computer network in place. Most large corporations are reluctant to allow non computer devices to connect to their core network. Our first challenge would be getting authorisation to connect a network lighting interface (NLI) to Baths core network. The network at the university is controlled by BUCS ( Bath University Computer Services). Due to the forward thinking approach of BUCS we were asked to supply a NLI for security testing by the network team. Our NLI passed the test. Problem 1 solved
7. Lets put it all together. FAB could now connect a NLI to the network. We already had a number of NLIs installed around the site as part of a trail phase. Due to increasing energy costs the university is rolling out LED Lighting. The university now specifies that all new fittings installed, will be equipped with DALI control gear. DALI allows for control of each fitting. DALI allows for monitoring of each fitting. Its is now technically possible to control each fitting any where on the campus. We now had a lot of information being generated and no easy way for this to be accessed by anyone.
8. Compliance In addition to general lighting an estate the size of the University of Bath has hundreds of emergency light fittings. All emergency light fittings must be tested. Bath carries out monthly function tests and annual duration tests. DALI allows for automated emergency testing. Prior to the installation of DALI all emergency tests would have to be carried out manually. FAB was asked “How do we manage all of these tests?”
9. Information is the key All Lighting faults and emergency tests at Bath are handled by the Estates team. With a large estate to manage and only a few maintenance engineers, its best to use their time effectively. Prior to the implementation of DALI. The estates team would have to wait for a fault to be reported before arranging resolution. There would always be a building some where that required an emergency test to be carried out. DALI allows for monitoring and control of each fitting, including fault status. If we could get the information out of the fittings and sent to the estates team we could make more efficient use of the maintenance engineers time. Most systems are designed for use inside one building. FAB was asked “How do we store all of this information?”
10. Challenges We have all ready solved the following: How to control and monitor each fitting How to get data back over the core network. We needed to solve the following problems: How to manage all of the emergency testing How to store all of the information DALI provides How to best distribute the information
11. Solution FAB worked with a software development company (Mvine) to develop a central Business Intelligence system (BI). The BI had to be simple to use and deliver information to a number of difference users. Key points: Comprehensive fault reporting Lighting Inventory Energy monitoring Automated Emergency testing
12. GREEN LUX
13. Questions & Answers www.fabcontrols.co.uk