Remote Health Monitoring for Asset Management

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the connection would be waterproof. All web holes needed to support the installation of the thermal array were made in the field using a common magnetic drill. Two angles were connected to the web in front of the array to deflect debris during the installation of the pile and to protect the array from direct impact on the nose of the array during the driving procedure. Figure 5.11. Schematic diagram of prototype test pile. An LPC-350 Mini PC from Stealth Computer Corporation was purchased for the on-site data collection. It was selected due to its small footprint and because it has a serial connection, which was needed for data acquisition through our setup. Figure 5.12 shows the front panel of the mini PC. An on-site enclosure (data box) houses the computer data acquisition system. This data box includes the Mini PC, keyboard, mouse, monitor, and a small thermoelectric cooler. The system is power by typical 120 V AC power. Communication with the field data acquisition system is achieved using a cellular modem attached to the USB port of the stealth computer. The installation of the test pile was completed using a back-hoe to lift the pile and drive (push) it into the bed of Hinkson Creek. Initial installation of the pile in the creek bed revealed that bedrock was located at a depth of only about 18 inches in this portion of the creek. As a result, the creek bed was determined to not be a suitable location for the test pile. The test pile was removed from the creek bed and re-installed along the bank of the creek. In this configuration, shown in Figure 36
5.13, a portion of the pile is installed in sound soil, and the rest of the pile is exposed to ambient air conditions. This represents an installation scheme along a normally dry bank of a river that is only submerged during flood conditions. Figure 5.12. Photograph of Stealth computer used for data acquisition from temperature sensors. The pile was driven to refusal at this location. Approximately 18 in. of loose soil was placed around the top of the pile to level the bank and extend the portion of the test pile installed in the soil. This area of the creek is expected to flood regularly during high water events because the creek has steep, narrow banks, such that high water will occur with modest amounts of rainfall. The test pile was connected to the computer in the data box, and data stored on site as well as at a server on the MU campus. 37
Page 1 and 2: • • • • • • • • •
Page 3 and 4: FINAL REPORT RI07-002 Remote Health
Page 5 and 6: List of Figures Figure 2.1. Photogr
Page 7 and 8: Executive Summary This project expl
Page 9 and 10: States as a means of technology tra
Page 11 and 12: where the soil / water interface ex
Page 13 and 14: from a sensor, the micro-controller
Page 15 and 16: solder connections, simplify manufa
Page 17 and 18: Figure 3.5. Photonegative used for
Page 19 and 20: temperature changes that could be m
Page 21 and 22: Figure 3.11. Diagram of the 48 in.
Page 23 and 24: Two ceramic heatplates were used to
Page 25 and 26: stores the data at a specified rate
Page 27 and 28: TEMPERATURE(°C) 60 50 40 30 20 10
Page 29 and 30: 45 109 TEMPERATURE (ºC) 40 35 30 2
Page 31 and 32: 50 TEMPERATURE ( F) 50 55 60 65 70
Page 33 and 34: 5 Field Implementation of Technolog
Page 35 and 36: the array after the epoxy has been
Page 37 and 38: 33 91 31 TEMPERATURE (ºC) 29 27 25
Page 39 and 40: Figure 5.8. 3-D graph showing senso
Page 41: interval. A time interval of 15 min
Page 45 and 46: several days. Temperatures increase
Page 47 and 48: Where is the sample mean and n is
Page 49 and 50: The data can also be observed as a
Page 51 and 52: to select a different time period f
Page 53 and 54: 6 Conclusions This research has exp
Page 55 and 56: REFERENCES 1. Richardson, E.P.-O.,

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