7/9/2007 AIIT Summer Course - D# 1 Wireless Embedded Systems and Networking Lab Day 1: Part 2: Build a self-organized mesh over a physical extent. Lab.

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Presentation transcript:

7/9/2007 AIIT Summer Course - D# 1 Wireless Embedded Systems and Networking Lab Day 1: Part 2: Build a self-organized mesh over a physical extent. Lab Assistant: Jaein Jeong University of California, Berkeley

7/9/2007AIIT Summer Course - D#2 Deploying Sensor Nodes Discuss as a group where to place your nodes in the lab and in its vicinity. Identify interesting places to sense. In addition to the environmental sensors, you can imagine adding open/close sensors, tilt, or other inputs. Draw a rough sketch of the floor plan of the space that you will cover and indicate where you will place the nodes. Use all but one of the nodes, so we one set aside for later. Discuss what you will be able to observe through the sensors. Discuss what you think the wireless connectivity will be among the nodes. Discuss how you think information will get routed to the server.

7/9/2007AIIT Summer Course - D#3 Sketch Upload your sketch, either by scanning it in or by rendering it in PowerPoint or your favorite drawing program to create a jpeg.

7/9/2007AIIT Summer Course - D#4 Placing nodes Select up to 5 nodes to place at the intended spots in your lab space. –Continue to use an accelerated rate. For each one –name it in your network –Place it at the point of interest. –Place its representative at the corresponding point on your map.

7/9/2007AIIT Summer Course - D#5 Check all the nodes Observe whether all the nodes are part of the mesh. Are any missing?

7/9/2007AIIT Summer Course - D#6 Connectivity Study the connectivity by going to the connectivity page. Study the map view. What is routing through which? Go to the list view. See the RSSI and link quality.

7/9/2007AIIT Summer Course - D#7 Site Survey Run a site survey from each of the nodes.

7/9/2007AIIT Summer Course - D#8 Connectivity and Mesh Routing Discuss how the connectivity compares to your expectations. Discuss how the mesh routing to the server compares to your expectations. Network too sparse => add a node to fill it in. Network too shallow => extend with a node farther out.

7/9/2007AIIT Summer Course - D#9 Reliability Use the reliability page. Reset the reliability statistics. Let it go for a bit.

7/9/2007AIIT Summer Course - D#10 Mobility, Obstruction and Connectivity Move nodes around, move them on the map. See how the connectivity remains. Try to obstruct it and see how the routing changes.

7/9/2007AIIT Summer Course - D#11 Energy Status Go to the energy page and see the duty cycle. Adjust the sample rate to something more typical, more typical, say 300s.

7/9/2007AIIT Summer Course - D#12 Lab wrap up. Place nodes where they can run over night. Verify that the network is robust. Turn on data warehouse. Reset stats. Let them run till tomorrow.