Devices, systems, and methods for testing crash avoidance technologies
A Guided Soft Target (GST) system and method provides a versatile test system and methodology for the evaluation of various crash avoidance technologies. This system and method can be used to replicate the pre-crash motions of the CP in a wide variety of crash scenarios while minimizing physical risk, all while consistently providing radar and other sensor signatures substantially identical to that of the item being simulated. The GST system in various example embodiments may comprise a soft target vehicle or pedestrian form removably attached to a programmable, autonomously guided, self-propelled Dynamic Motion Element (DME), which may be operated in connection with a wireless computer network operating on a plurality of complimentary communication networks. Specific DME geometries are provided to minimize ride disturbance and observability by radar and other sensors. Computer controlled DME braking systems are disclosed as well as break-away and retractable antenna systems.
1. A break-away antenna system adapted for use with a Guided Soft Target, comprising:
an antenna adapted to mount to a soft body of a Guided Soft Target, the soft body removably attachable to a Dynamic Motion Element of the Guided Soft Target;
first antenna wiring extending from the antenna;
second antenna wiring extending from the Dynamic Motion Element;
a reattachable electrical connector adapted to electrically connect the first antenna wiring with the second antenna wiring sufficiently to maintain an uninterrupted electrical connection during normal use of the Guided Soft Target;
the reattachable electrical connector adapted to disconnect the first antenna wiring from the second antenna wiring without damage to the connector or the first or second antenna wiring when the soft body is suddenly removed from the Dynamic Motion Element due to the Guided Soft Target being impacted by a subject vehicle;
wherein the reattachable electrical connector and second antenna wiring is recessed below an exterior surface of the Dynamic Motion Element.
2. The break-away antenna system of claim 1 , wherein the antenna extends beyond an exterior surface of the soft body when the antenna is mounted to the soft body.
3. The break-away antenna system of claim 1 , further comprising a plurality of said antennas with a plurality of first antenna wiring extending therefrom, one or more of the reattachable electrical connectors adapted to electrically connect the plurality of first antenna wiring with the second antenna wiring.
4. The break-away antenna system of claim 1 , wherein slack is provided in the second antenna wiring.
5. The break-away antenna system of claim 1 , wherein the reattachable electrical connector comprises a standard BNC-type or TNC-type connector absent the locking structures normally present on such connectors.
6. The break-away antenna system of claim 5 , wherein the standard BNC-type or TNC-type connector comprises a smooth outer surface adapted to prevent catching on adjacent surfaces during impact.
7. A break-away antenna assembly adapted for use with a Guided Soft Target, comprising:
an antenna mounted to a soft body of a Guided Soft Target, the soft body removably attached to a Dynamic Motion Element of the Guided Soft Target;
first antenna wiring extending from the antenna;
second antenna wiring extending from the Dynamic Motion Element;
a reattachable electrical connector electrically connecting the first antenna wiring with the second antenna wiring sufficiently to maintain an uninterrupted electrical connection during normal use of the Guided Soft Target;
the reattachable electrical connector adapted to disconnect the first antenna wiring from the second antenna wiring without damage to the connector or the first or second antenna wiring when the soft body is suddenly removed from the Dynamic Motion Element due to the Guided Soft Target being impacted by a subject vehicle;
wherein the reattachable electrical connector and second antenna wiring is recessed below an exterior surface of the Dynamic Motion Element.
8. The break-away antenna assembly of claim 7 , wherein the antenna extends beyond an exterior surface of the soft body.
9. The break-away antenna assembly of claim 7 , further comprising a plurality of said antennas mounted to the soft body with a plurality of first antenna wiring extending therefrom, one or more of the reattachable electrical connectors electrically connecting the plurality of first antenna wiring with the second antenna wiring.
10. The break-away antenna assembly of claim 7 , wherein slack is provided in the second antenna wiring.
11. The break-away antenna assembly of claim 7 , wherein the reattachable electrical connector comprises a standard BNC-type or TNC-type connector absent the locking structures normally present on such connectors.
12. The break-away antenna assembly of claim 11 , wherein the standard BNC-type or TNC-type connector comprises a smooth outer surface adapted to prevent catching on adjacent surfaces during impact.