What does the circuit_breaker mean in commander.cpp

PX4 Autopilot Multicopter 🛸
1

I’m a novice，when i read the code in commander.cpp i find something like :

// CIRCUIT BREAKERS
status_flags.circuit_breaker_engaged_power_check = false;
status_flags.circuit_breaker_engaged_airspd_check = false;
status_flags.circuit_breaker_engaged_enginefailure_check = false;
status_flags.circuit_breaker_engaged_gpsfailure_check = false;

what does the circuit_breaker mean?is it something about hardware?
Thanks！

2

Yes,your thinking is right.
The circuit breaker check is used to check whether we can arm.

1 Like
3

Circuit Breakers are Softflags you will find in the Parameterlist. This is used to allow the User to enable/disable some security/safety Checks that are used for Arming. i.e. you can permit Arming when a USB Cable is attached, or permit Arming even if there is a Problem with the GPS.

1 Like
4

Thanks for the reply ,it 's really helpful.

5

Thank you.your explain is so clear! thank you.