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Penn State - Sponsored Senior Design Project - EE 403W
Faculty Advisor: Tim Wheeler
Sponsor Contact: Ted Graef
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Penn State - Sponsored Senior Design Project - EE 403W Faculty Advisor: Tim Wheeler Sponsor Contact: Ted Graef
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Team ICS:
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Project Statement Traffic counters are placed in many locations to collect data for counting and classifying traffic over a period of time. Currently, the operator must visit the unit to download the traffic data. Many times when the operator goes to collect the data, the counter is vandalized and/or the tubes are missing. This interferes with the study and makes the data unusable. In order to correct this problem we will design a system that will monitor operation of the traffic counting device and alert the operator in the event of a problem.
Design Criteria
Our Solution
Our design will not be to change the existing traffic
counter, but instead be an attachment that can be used on different models of
counters. The monitor will use the tubes as an input as does the traffic
counter. This input will be obtained by branching off the existing tubes, using
a t-connection, and attaching them to the monitor in the same manner as the
counter. Inside the joint connector of the tubes will be the sensor for the
monitor. This sensor will be the same one used in the traffic counter, the piezo
sensor. It will receive a signal from the tubes and report it to the
microcontroller. Both of the time constraints (Idle Time, Single Signal Time) and the Single Signal Count can be set by the operator. A third error that the monitoring system checks for is the tampering of both the traffic counter and the monitoring system. This is done by using a tilt sensor to monitor the vibration of the monitoring system and will notify the operator if the monitoring system has excess movement/shaking for more than 2 minute. The movement of both the traffic counter and monitoring system will trigger this error because they are connected. The Remote Traffic Counter Monitoring System will use 7-seven segment LED displays and push button to interface with the user, so the user can select different setting and the sensitivity of the monitor. Four 7-seven segment displays will display all the necessary outputs, like the number of date it has operated, the current time, the number of hours allow for the piezo sensors to be idle before sending an error, the limited number of single signal allow, and the times that the single signal count is valid before it resets. All of the output mentioned above can be set by the user using the two push buttons, one for selecting the different display and the other for changing its level. By selection different levels, the operator can adjust the sensitivity of the errors for different traffic patterns, making the Remote Traffic Counter Monitoring System flexible in many traffic environments. (Click on picture to enlarge)
Parts Used(Click on parts # to view datasheet)
Utilities
ICS Contact Information
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