Signal distribution to and/or from controllers in vehicle
A system in a vehicle for distributing signals to controllers comprises: an advanced driver assistance system (ADAS) controller configured for controlling an ADAS of the vehicle; an infotainment controller configured for controlling an infotainment system of the vehicle; a sensor device; and a switch, the switch being powered by power over coaxial from the ADAS controller or the infotainment controller, the switch configured for distribution of a first signal from the sensor device to either of the ADAS controller or the infotainment controller.
1 . A system in a vehicle for distributing signals to controllers, the system comprising:
an advanced driver assistance system (ADAS) controller configured for controlling an ADAS of the vehicle;
an infotainment controller configured for controlling an infotainment system of the vehicle;
a sensor device; and
a switch, the switch being powered by power over coaxial from the ADAS controller or the infotainment controller, the switch configured for distribution of a first signal from the sensor device to either of the ADAS controller or the infotainment controller.
2 . The system of claim 1 , wherein the sensor device comprises a camera of the vehicle.
3 . The system of claim 2 , wherein the sensor device comprises multiple cameras distributed around the vehicle and directed towards surroundings of the vehicle, and wherein the system further comprises multiple switches, each for a corresponding one of multiple isolated channels for the multiple cameras.
4 . The system of claim 2 , wherein the camera includes a serializer configured to perform serialization that generates the first signal.
5 . The system of claim 2 , wherein the system is configured to operate in a sentry mode, wherein in the sentry mode the ADAS controller is turned off, and wherein in the sentry mode the infotainment controller provides the power over coaxial to the switch, and the switch distributes the first signal to the infotainment controller.
6 . The system of claim 5 , further comprising a display device in the vehicle, wherein the infotainment controller is configured to generate a second signal for the display device in the sentry mode, the second signal based on the first signal from the camera.
7 . The system of claim 1 , wherein the switch comprises at least one selected from the group consisting of a radiofrequency switch, a semiconductor device, a digital switch, a multiplexer, a demultiplexer, or a mechanical switch.
8 . The system of claim 1 , wherein the switch is separate from the ADAS controller and from the infotainment controller.
9 . The system of claim 1 , wherein the switch is integrated into the ADAS controller, and wherein the infotainment controller is interfaced to the ADAS controller.
10 . The system of claim 1 , wherein the switch is integrated into the infotainment controller, and wherein the ADAS controller is interfaced to the infotainment controller.
11 . The system of claim 1 , wherein the switch is integrated into the sensor device.
12 . The system of claim 1 , wherein the switch is configured so that:
i) whichever one of the ADAS controller or the infotainment controller provides the power over coaxial to the switch, the switch distributes the first signal to that one of the ADAS controller or the infotainment controller; and
ii) in case both of the ADAS controller and the infotainment controller simultaneously provide the power over coaxial to the switch, the switch has a prioritization to distribute the first signal to only one of the ADAS controller or the infotainment controller.
13 . The system of claim 12 , wherein the prioritization is to distribute the first signal to the ADAS controller.
14 . The system of claim 12 , wherein the prioritization is to distribute the first signal to the infotainment controller.
15 . The system of claim 1 , further comprising an interface between the ADAS controller and the infotainment controller, wherein the ADAS controller is configured to provide a second signal via the interface for receipt by the infotainment controller without the second signal passing through the switch.
16 . A system in a vehicle for distributing signals from controllers, the system comprising:
an advanced driver assistance system (ADAS) controller configured for controlling an ADAS of the vehicle;
an infotainment controller configured for controlling an infotainment system of the vehicle;
a display device; and
a switch, the switch being powered by power over coaxial from the ADAS controller or the infotainment controller, the switch configured for distribution of a first signal from either of the ADAS controller or the infotainment controller to the display device.
17 . The system of claim 16 , wherein the switch comprises at least one selected from the group consisting of a radiofrequency switch, a semiconductor device, a digital switch, a multiplexer, a demultiplexer, or a mechanical switch.
18 . The system of claim 16 , wherein the switch is separate from the ADAS controller and from the infotainment controller.
19 . The system of claim 16 , wherein the switch is integrated into the ADAS controller, and wherein the infotainment controller is interfaced to the ADAS controller.
20 . The system of claim 16 , wherein the switch is integrated into the infotainment controller, and wherein the ADAS controller is interfaced to the infotainment controller.
21 . The system of claim 16 , wherein the switch is configured so that:
i) whichever one of the ADAS controller or the infotainment controller provides the power over coaxial to the switch, the switch distributes the first signal, generated by that one of the ADAS controller or the infotainment controller, to the display device; and
ii) in case both of the ADAS controller and the infotainment controller simultaneously provide the power over coaxial to the switch, the switch has a prioritization to distribute the first signal, generated by that one of the ADAS controller or the infotainment controller, to the display device.