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- 1. An Introduction to Wireless Monitoring Systems By Daniel Scott Technical Development Manager ITM-Soil Group [email_address]
- 5. Goal of a Monitoring System 0001100111001 Operators, Engineers, Consulting Engineers, Risk Ans, Neural Networks Spread Sheet, Software, Web Based Manual, CAN, RS485/Short Haul Modems, TCP/IP Binary, Hex, ASCII Voltage, Current, Frequency, Count, Digital mm, Hz , N, Pa, V, A, Ω , °C Observer Presentation Transport Data Signal Sensor Physical Phenomenon
- 12. Why Wireless?
- 14. … disruptive environments Cabling sensors…
- 15. … machinery Cabling sensors…
- 16. … Problems with Safety … cable susceptible to damage Cabling sensors…
- 17. … Inter-Cable signal Interference Cabling sensors… … Cable Management … Complex Wiring Requirements … Difficult Access
- 18. … high cost of installation Cabling sensors…
- 21. Network Sensor Module (Node)
- 22. Network Sensor Module (Node) Sensors and nodes are put in place
- 23. Wireless Data Link The network collects, stores and shares sensor data
- 24. Network Gateway Wired Data Link Wireless Data Link A node is selected as the gateway Wired or wireless loggers are connected to the gateway
- 25. A data path may become blocked The network will reroute the data via a different node Network Gateway Wired Data Link Wireless Data Link
- 26. Network Gateway Rerouted Wireless Data Link Data are again rerouted when the obstruction is cleared This is a “Self Healing Network”
- 27. Network Gateway Wired Data Link Wireless Data Link Access to the network can be made from any node
- 28. Network Gateway If connection to the logger is lost… Data are stored within the network until connection with the logger is restored
- 29. Network Gateway When connection is restored, the logger can collect data from network
- 30. New wireless sensor nodes are installed in a nearby location The nodes are out of range of the working network … and a brick wall is in the way Placing two nodes as repeaters, the new sensors are able to connect to the existing network
- 31. Placing two nodes as repeaters, the new sensors are able to connect to the existing network
- 42. Network Sensor Module (Node)
- 43. Wireless Data Link Network Sensor Module (Node)
- 44. Network Sensor Module (Node) Wireless Data Link
- 45. Network Sensor Module (Node) Wireless Data Link
- 46. Network Sensor Module (Node) Wireless Data Link
- 47. Network Sensor Module (Node) Wireless Data Link
- 48. Network Sensor Module (Node) Wireless Data Link
- 49. Network Gateway Wireless Data Link
- 50. Network Gateway Wireless Data Link
- 53. Intelligent Wireless Sensors A Case Study
- 54. Flood Monitoring
- 55. Flood Monitoring
- 56. SOLID STATE PRESSURE TRANSDUCER
- 57. TRANSDUCER IS INSTALLED INTO SLOTTED HDPE TUBE…
- 58. … AND INSTALLED BELOW THE WATER
- 59. GPRS MODEM LOGGER IS USED TO STORE AND COMMUNICATE DATA…
- 60. … AND IS CONNECTED TO THE PRESSURE TRANSDUCER
- 61. AT NORMAL WATER LEVELS, DATA TRANSMSSIONS NEED ONLY TO BE SENT ONCE A DAY Data sent every day
- 62. WHEN WATER LEVEL RISES TO PRECONDITIONED LEVELS, THE SENSOR DATA CAN BE TRANSMITTED MORE OFTEN Data sent every 10 minutes
- 63. IF FLOOD CONDITIONS ARE DETECTED, ALARMS CAN BE SENT AND SENSOR DATA TRANSMITTED MORE FREQUENTLY Alarms sent and data transmitted every 2 minutes
- 65. The Future What do you want to do?