Chain of custody information for cargo transportation units

1. A system comprising:

at least one processor configured to:

receive an image captured by a camera of a first cargo transportation unit (CTU) in response to an activation of the camera, the activation of the camera of the first CTU responsive to an event;

determine based on the image an identifier of an entity that owns, operates, or has access to the first CTU or a second CTU; and

log the identifier of the entity in chain of custody information stored in a storage medium.

2. The system of claim 1 , wherein the activation of the camera of the first CTU is responsive to the event occurring at the first CTU.

3. The system of claim 2 , wherein the event comprises a detection of movement of a door of the first CTU.

4. The system of claim 2 , wherein the event comprises a detection of a change in movement of the first CTU.

5. The system of claim 4 , wherein the change in movement of the first CTU comprises the first CTU starting to move, the first CTU stopping, or the first CTU vibrating.

6. The system of claim 1 , wherein the activation of the camera is responsive to the second CTU triggering the first CTU to activate the camera of the first CTU.

7. The system of claim 6 , wherein the second CTU triggering the first CTU to activate the camera of the first CTU is based on use of wireless communication between the first CTU and the second CTU.

8. The system of claim 1 , wherein the image captured by the camera comprises an image of a person accessing the first CTU or the second CTU.

9. The system of claim 1 , wherein image captured by the camera comprises an image of information indicating a name of the entity that owns or operates the second CTU.

10. The system of claim 1 , wherein the determining based on the image of the identifier of the entity is based on text processing in the image.

11. The system of claim 1 , wherein the determining based on the image of the identifier of the entity is based on facial image processing in the image.

12. A method comprising:

receiving, by a system comprising a processor, an image captured by a camera of a first cargo transportation unit (CTU) in response to an activation of the camera, the activation of the camera of the first CTU responsive to an output of a sensor;

determining, by the system, based on the image an identifier of an entity that owns, operates, or has access to the first CTU or a second CTU; and

storing, by the system, chain of custody information containing the identifier of the entity in a storage medium.

13. The method of claim 12 , wherein the sensor is part of the first CTU.

14. The method of claim 12 , wherein the output of the sensor indicates movement of a door of the first CTU.

15. The method of claim 12 , wherein the output of the sensor indicates a change in movement of the first CTU.

16. The method of claim 12 , wherein the activation of the camera is responsive to the second CTU triggering the first CTU to activate the camera of the first CTU.

17. The method of claim 12 , wherein the determining based on the image of the identifier of the entity is based on text processing in the image.

18. The method of claim 12 , wherein the determining based on the image of the identifier of the entity is based on facial image processing in the image.

19. A non-transitory machine-readable storage medium storing instructions that upon execution cause a system to:

receive an image captured by a camera of a first cargo transportation unit (CTU) in response to an activation of the camera, the activation of the camera of the first CTU responsive to an event;

determine based on the image an identifier of an entity that owns, operates, or has access to the first CTU or a second CTU; and

log the identifier of the entity in chain of custody information stored in a storage medium.

20. The non-transitory machine-readable storage medium 19 , wherein the event is indicated by an output of a sensor on the first CTU or another CTU.