2. A microcontroller system with 50-KHz system clock is programmed to take a sensor reading every 2 minutes. The size of each reading is 4 MB, and it takes 120 ms to complete the reading. The reading is then analyzed to determine whether or not to turn an actuator on. The processing rate of the data is 500 KB/s and the actuation process requires 10,000 clock cycles. a. Determine the minimum and maximum sleep time and the corresponding utilization of the system. b. Determine the average theoretical power consumption if 5% of the sensor readings resulted in actuation. Assume the board consumes 0.29 W when active and 0.01 W when in sleep mode.
2. A microcontroller system with 50-KHz system clock is programmed to take a sensor reading every 2 minutes. The size of each reading is 4 MB, and it takes 120 ms to complete the reading. The reading is then analyzed to determine whether or not to turn an actuator on. The processing rate of the data is 500 KB/s and the actuation process requires 10,000 clock cycles. a. Determine the minimum and maximum sleep time and the corresponding utilization of the system. b. Determine the average theoretical power consumption if 5% of the sensor readings resulted in actuation. Assume the board consumes 0.29 W when active and 0.01 W when in sleep mode.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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Transcribed Image Text:2. A microcontroller system with 50-KHz system clock is programmed to take a sensor
reading every 2 minutes. The size of each reading is 4 MB, and it takes 120 ms to complete
the reading. The reading is then analyzed to determine whether or not to turn an actuator
on. The processing rate of the data is 500 KB/s and the actuation process requires 10,000
clock cycles.
a.
Determine the minimum and maximum sleep time and the corresponding
utilization of the system.
b. Determine the average theoretical power consumption if 5% of the sensor
readings resulted in actuation. Assume the board consumes 0.29 W when active
and 0.01 W when in sleep mode.
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