Adaptive Wireless Solutions Ltd Company Overview

1. Adaptive Wireless Solutions Ltd Company Overview

2. Adaptive Wireless Solutions • Specialists in monitoring and control solutions using wireless mesh sensor networks for over 8 years • Offer systems integration and equipment supply for numerous wireless and wired technologies driven by customer requirements • Distributor for ECOMM and Wireless Sensors in UK and Europe • Certified System Partner for HMS Industrial Networks (Netbiter) in UK • Can help you integrate and manage your data gathering, monitoring and control activities • Complete solution design, supply and support • Wireless technology consulting and advice • Programme and project management • Technical and wireless architecture design • Equipment and software supply from multiple vendors • Integration with other systems • Installation and commissioning • Maintenance and Support

3. Customers and Projects • We have had enquiries and projects in BMS extension, energy management, industrial plants, IT environments, and related monitoring and control applications in a wide cross-section of industries from commercial offices, universities and colleges, hotels and apartment complexes to warehousing, recycling plants, food companies and national utilities. • Customers in UK, Ireland, Italy, Netherlands, Belgium, Hungary, Israel, Saudi Arabia BOMBARDIER

4. Business Advantages of Mesh Radio Up to 90% lower installed costs Lower cost of required equipment and supplies Much quicker installation = less on-site time and less disruption Monitor and control in: harsh environments (lots of metal and interference) “wire unfriendly” situations where wires are difficult or undesirable Low cost and speedy retrofit to existing buildings, equipment and processes Monitors mobile or rotating equipment Easy optimisation of sensor position in process for a better result Cost-effective diagnostics in uncertain or temporary situations Multiple sensor types with standard wireless nodes on a single network Remote, ‘PC-less’, monitoring from anywhere on the internet Economic and operational advantages vs. wired sensors

5. Gateway Mesh node Sensing node Wireless Network Types Older, less flexible, less reliable technologies • Direct Connection • Wire replacement • Point to point, highly specific • Engineered to suit application • Star • One central routing and control point • Single-hop - point to multi-point • All data flows through central point • Mesh • Multiple data paths • Multi-hop • Can operate as star or hybrid star/mesh • Self configuring, self healing • Highly flexible, highly reliable Newer, more flexible, more reliable technology

6. Operational Advantages of Mesh • Transmit Around Equipment • More robust • More flexible • Extend Network Range • More robust • More capable • Multiple Pathways • Stronger connectivity • Self-Healing, Self-Managing Secondary Primary Out of Range Primary

7. Core Mesh Wireless Product Ranges

9. ECOMM direct integration with Modbus meters • The following electricity meter types are currently supported by direct integration via Modbus RS485 connection to the ECOMM WC21 radio unit • Schneider E 5600 • Schneider ION 8600 • Schneider PM 710/750 • Schneider PM 9C • Schneider ION 6200 • Carlo Gavazzi EM24 • Veris H 8036 • EIG Shark 100 • Continental Controls Wattnode • Other meter types can be added as needed (at a modest cost)

11. Remote Monitoring and Control

12. Solution Architecture – Netbiter remote monitoring Wireless range to cover large sites, highly reliable digital mesh radio, not affected by interference. Scales from 1 to 100’s of points. Netbiter transfers data off-site to Netbiter Argos remote monitoring portal. Web API available to integrate data to other applications Remote off-site monitoring using Netbiter Argos Netbiter is Modbus TCP proxy Wireless mesh Gateway Typical Sensors and I/O devices Battery and/or line powered Temperature sensor Temperature and humidity Occupancy, door contact Light Pulse counting Dry contact inputs Up to 32 inputs per radio: contact, NTC, 0-5V, 0-20mA Relay and analogue outputs Multi-stage thermostat controller Modbus RTU bridge

13. Although we specialise in mesh radio we also use GSM/GPRS and Narrowband radio systems when needed to meet customer requirements

14. Typical Solution Architecture Overview (1)

15. Typical Solution Architecture Overview (2)

16. Example Projects

17. Application example – Westfield Shopping Mall BMS integration for temperature control 55,000 Sq Metres on two floors with Atrium 49 Air handling units on roof 1 Wireless network 18 Mesh repeaters 30 Sensing nodes Ambient Temperature input to HVAC zone controls via Modbus TCP Installed in 2 days to resolve critical operating requirement £6,100 equipment cost

18. Application example – Large Data Centre Monitoring Solution Console Other Viewers 7,500 Sq Metres 4 Floors Phase 1 - 2008 6 Wireless Sub-networks 22 Mesh repeaters 178 Sensing nodes Ambient TRH Phase 2 - 2009 100 additional TRH sensors on two floors 4 more wireless sub-networks Phase 3 - 2010 Being planned now Electrical Power Chilled water Floor 3 Floor 2 Control Room Viewers Primary Server Main Mission Critical Data Centre Floor 1 Basement Common Ethernet Network Remote Business Continuity Centre Secondary Server Remote Disaster Recovery Centre Secondary Console

19. BMS / SCADA Integration • We have supplied systems to clients providing integration to existing BMS’ and SCADA / software systems via: • Modbus TCP and RTU • Direct analogue and digital connection • ODBC, OPC and SQL connection • BMS’ that have been integrated with our systems include: • Trend • Siemens • Schneider • Andover Controls/TAC • Honeywell • Priva • Numerous SCADA systems have also been integrated

20. Network Performance and Reliability

21. Industrial Wireless Sensor Networks Industrial WSN OEM Adoption Inhibitors Source: ON World, Inc.

22. Building Automation Wireless Sensor Networks Commercial Building WSN Adoption Inhibitors Source: ON World, Inc.

23. Wireless Sensor Network Reliability RF Interference • Common interference sources: • Multipath interference • Occurs when the RF signal interferes with itself • Reflections off surfaces of all types • Can interfere with original signal and even cancel it out • Interference with other transmitters • ISM band 2.4 Ghz wireless is increasingly common • Signals can be affected by other sources • Data slows down (more retries) or even stops • A good way to avoid it is to ‘frequency-hop’ • Examples of other transmitters in the 2.4 GHz band can be WiFi nodes, microwaves, cordless phones, Bluetooth devices, RFID, and other wireless sensor networks. • How can it be avoided?

24. INTERFERENCE Signal strength NOISE FLOOR 2.40GHz 2.48GHz frequency Wireless Sensor Network Reliability Interference Avoidance • Typical methods: • Direct Sequence Spread Spectrum (DSSS) modulation • Part of the IEEE802.15.4 radio standard • Spreads the signal over a wider bandwidth • Reduces the chance of blocking the whole signal • Frequency-Hopping Spread Spectrum (FHSS) modulation • NOT part of the IEEE802.15.4 radio standard • Uses a range of base frequencies • Transmitter and receiver periodically hop to a new frequency • Acts more like a narrowband radio for very short intervals • Very unlikely that all channels in the band are interfered • Dynamic channel hopping • Not a modulation technique • Enhances simple FHSS modulation by dynamically detecting persistently busy channels and avoiding them • The best mesh radio systems use all three techniques

25. Wireless Sensor Network Protocols How do they affect performance? • Two main options: • Carrier Sense Multiple Access • Collision-based protocol • Uses collision-avoidance (CA) or collision detection (CD) • Most WSN protocols use CA to avoid network overhead • Network communication is not time-synchronised • Pseudo-random ‘Back-off and re-try’ mechanisms are used • Collisions within the network escalate as networks get larger • ZigBee is based on this CSMA-CA approach • Time Synchronised Protocols • These minimise or avoid collisions and transmission re-tries • Time synchronisation allows the use of channel-hopping • TDMA (Time Division Multiple Access) is an example • Also called ‘slotted’ protocols because each device has a ‘time slot’ • The benefits of synchronised traffic and channel-hopping are: • Better performance (fewer collisions/retries) • Increased battery life (fewer retries) • Better interference avoidance (channel-hopping) • The most sophisticated systems use adaptive dynamic channel-hopping

26. Application Application Interface Network Layer Data Link Layer MAC Layer MAC Layer PHY Layer IEE 802.15.4 Proprietary Application Protocol Standards? • 802.15.4-based market offerings are differentiated by proprietary protocol stacks with different design goals • Network layers of the protocol • are not standardised • There are many trade-offs in protocol design • There is room for several feature-specific protocol variants using the IEEE 802.15.4 base standard • It is important that hardware remains 802.15.4 compliant • ‘Standard protocols’, if they ever become available, will not mean that proprietary protocols become obsolete or unnecessary. • ZigBee is not a standard and has serious reliability and performance limitations in industrial and commercial environments. ZigBee equipment from different vendors does not interoperate – one of the key goals of a standard.

27. Contact Details Adaptive Wireless Solutions Ltd 91 High Street Prestwood Great Missenden HP16 9ER Tel:+44 (0) 1494 865992 www.adaptive-wireless.co.uk Nick Baker Director Mobile: 07968 352875 nbaker@adaptive-wireless.co.uk Skype: adaptivewireless