Description
The camera power model is a custom Power Node Model that simulates power consumption for a Camera payload. It draws power from the electrical circuit specifically when an image is captured, allowing for realistic simulation of camera operations in a spacecraft Power Bus.
Example Use Cases
- Camera Power Simulation: Model the power draw when a spacecraft camera captures images, providing realistic power consumption patterns during imaging operations.
Module Implementation
The Camera Model accepts two additional configuration parameters over the base Power Node Model:
Standby Power:The power (in Watts per second) that the camera will draw when idle.Capture Power:The power (in Watts) that the camera will draw when capturing an image.
For every simulation tick, the power model adjusts the resistance of the model to draw the specified power from the circuit based on the Voltage In to the model. This power draw is increased by the Capture Power for every Image capture that occurred.
Internally, the camera power model uses the component’s resistor to achieve the desired power draw. The resistance is adjusted according to the Power Law:
Where is the combined Standby Power and CapturePower in Watts for the tick, is the voltage in the circuit, and is the resistance in Ohms.
Assumptions/Limitations
- N/A