I think folks here are misunderstanding what I am trying to say above. The system seems it, at least the sensors will and then they send the image to the modul

I think folks here are misunderstanding what I am trying to say above. The system seems it, at least the sensors will and then they send the image to the module that processes this and runs the algorithm to detect that its a stationary object and that it needs to hit the brakes. Then the signal needs to be sent to the module that brakes. Being a real time system, all of these need to happen within a time window for the brakes to be applied at the right time. Its possible that because of some resource constraints or poor programming/design one of the steps in the chain is not triggered and so the system did not brake.