WARNING DEVICE FOR A WARNING DEVICE DEPLOYMENT SYSTEM

1 . A warning device for a warning device deployment system for an autonomous vehicle, the warning device comprising:

a tetrahedron frame having four triangular faces, the tetrahedron frame defining an expanded shape of the warning device;

at least one reflective material on the tetrahedron frame, wherein the warning device is self-expandable such that the warning device is compactable to a reduced volume when the warning device is stored in the warning device deployment system and expandable to the expanded shape when the warning device is deployed from the warning device deployment system.

2 . The warning device of claim 1 , wherein the warning device is made from a viscoelastic material.

3 . The warning device of claim 1 , wherein the tetrahedron frame includes a base such that the warning device stands upright from the base in the expanded shape.

4 . The warning device of claim 3 , wherein the base is weighted to provide stability for the warning device when the warning device is deployed from the warning device deployment system.

5 . The warning device of claim 4 , wherein the base has one or more weights disposed therein.

6 . The warning device of claim 5 , wherein the one or more weights are disposed in one or more vertices of the base.

7 . The warning device of claim 1 , further including a magnet disposed in the warning device such that the warning device is picked up by a corresponding magnet of the warning device deployment system.

8 . A warning device deployment system for an autonomous vehicle, the warning device deployment system comprising:

one or more warning device deployment mechanisms attached to the autonomous vehicle; and

one or more warning devices stored in the one or more warning device deployment mechanisms, the one or more warning devices being deployed from the one or more warning device deployment mechanisms, the one or more warning devices comprising:

a tetrahedron frame having four triangular faces, the tetrahedron frame defining an expanded shape of the one or more warning devices;

at least one reflective material on the tetrahedron frame, wherein the one or more warning devices are self-expandable such that the one or more warning devices are compactable to a reduced volume when the one or more warning devices are stored in the one or more warning device deployment mechanisms and expandable to the expanded shape when the one or more warning devices are deployed from the one or more warning device deployment mechanisms.

9 . The warning device deployment system of claim 8 , wherein the one or more warning devices are made from a viscoelastic material.

10 . The warning device deployment system of claim 8 , wherein the tetrahedron frame includes a base such that the one or more warning devices stand upright from the base in the expanded shape.

11 . The warning device deployment system of claim 10 , wherein the base is weighted to provide stability for the one or more warning devices when the one or more warning devices are deployed from the one or more warning device deployment mechanisms.

12 . The warning device deployment system of claim 11 , wherein the base has one or more weights disposed therein.

13 . The warning device deployment system of claim 12 , wherein the one or more weights are disposed in one or more vertices of the base.

14 . The warning device deployment system of claim 8 , wherein the one or more warning device deployment mechanisms include a magnet disposed therein, and the one or more warning devices include a magnet disposed therein such that the one or more warning devices are picked up by the magnet of the one or more warning device deployment mechanisms.

15 . An autonomous vehicle comprising:

one or more warning device deployment mechanisms attached to the autonomous vehicle; and

one or more warning devices stored in the one or more warning device deployment mechanisms, the one or more warning devices being deployed from the one or more warning device deployment mechanisms, the one or more warning devices comprising:

a tetrahedron frame having four triangular faces, the tetrahedron frame defining an expanded shape of the warning device;

at least one reflective material on the tetrahedron frame, wherein the one or more warning devices are self-expandable such that the one or more warning devices are compactable to a reduced volume when the one or more warning devices are stored in the one or more warning device deployment mechanisms and expandable to the expanded shape when the one or more warning devices are deployed from the one or more warning device deployment mechanisms.

16 . The autonomous vehicle of claim 15 , wherein the one or more warning devices are made from a viscoelastic material.

17 . The autonomous vehicle of claim 15 , wherein the tetrahedron frame includes a base such that the one or more warning devices stand upright from the base in the expanded shape.

18 . The autonomous vehicle of claim 17 , wherein the base is weighted to provide stability for the one or more warning devices when the one or more warning devices are deployed from the one or more warning device deployment mechanisms.

19 . The autonomous vehicle of claim 18 , wherein the base has one or more weights disposed therein.

20 . The autonomous vehicle of claim 19 , wherein the one or more weights are disposed in one or more vertices of the base.