A seismologist is calibrating 8 AI-based sensors arranged in a circular array. If each sensor must communicate with its two nearest neighbors and the connection between adjacent sensors uses 0.75 watts, what is the total power consumption for all bidirectional connections? - Parker Core Knowledge

Understanding the Context

Digital Seismic Monitoring: A Growing Trend in Geoscience

Across the US, interest in smart sensor arrays is rising as climate and natural hazard awareness grows. From earthquake-prone regions to urban infrastructure planning, deploying resilient, AI-powered sensing networks has become a practical priority. This context explains why innovations in sensor coordination—like circular arrays communicating via low-power links—draw growing attention. Calibrating multiple nodes to function as a unified system underscores the meticulous effort behind reliable environmental monitoring.

Key Insights

Connecting the Circle: Calculating Total Power Usage

The circular setup involves 8 sensors, each exchanging data bidirectionally with two immediate neighbors. Because connections are mutual, a sensor-to-sensor link is counted only once to avoid double-counting. With 8 nodes and two connections per sensor, the total directed links total 16—but each physical link represents a unique bidirectional connection shared between two devices.

Since each link consumes 0.75 watts during active operation, total power consumption stands at:
8 sensors × 2 neighbors = 16 directional links → counted once → effective 8 unique connections.
8 × 0.75 watts = 6 watts total power used.

Why Do These Connections Matter in Seismic Calibration?

Final Thoughts

Efficient communication isn’t just about saving energy—it’s critical for real-time data integrity. In seismic monitoring, sensors must swiftly relay slight ground movements across the array, allowing precise pattern recognition and early warning calculations. Low-power connectivity ensures power sustainability, especially in remote or difficult-to-access sites,