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 an additional configuration parameter over the base Power Node Model:
Capture Power:The power (in Watts) that the camera will draw when capturing an image.
When the camera is triggered to capture an image, 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 occurs only during the image capture event and returns to baseline afterward.
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 CapturePower in Watts, is the voltage in the circuit, and is the resistance in Ohms.
Assumptions/Limitations
- The power model only draws power during image capture events