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A roller system including a frame, a plurality of arm assemblies configured to apply a force to a surface, each arm assembly including an arm pivotably connected to the frame and a roller assembly pivotably connected to the arm and having a plurality of rollers configured to engage with the surface,

A roller system including a frame, a plurality of arm assemblies configured to apply a force to a surface, each arm assembly including an arm pivotably connected to the frame and a roller assembly pivotably connected to the arm and having a plurality of rollers configured to engage with the surface, and a pressure distribution system configured to adjust the force applied to the surface by at least one of the plurality of arm assemblies.

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1. A roller system comprising: a frame configured to be pushed by a host vehicle;a plurality of arm assemblies configured to apply force to a surface, wherein the applied force is independent of a weight of the host vehicle, each arm assembly including: an arm pivotably connected to the frame; anda

1. A roller system comprising: a frame configured to be pushed by a host vehicle;a plurality of arm assemblies configured to apply force to a surface, wherein the applied force is independent of a weight of the host vehicle, each arm assembly including: an arm pivotably connected to the frame; anda roller assembly pivotably connected to the arm and having a plurality of rollers configured to engage with the surface; anda pressure distribution system configured to adjust the force applied to the surface by each of the plurality of arm assemblies independently of the weight of the host vehicle, wherein the pressure distribution system comprises:a pressure source;a plurality of pneumatic circuits, each pneumatic circuit including a manifold and one or more pneumatic pistons connected to the manifold; anda switch having a plurality of positions for selectively connecting each pneumatic circuit with the pressure source, wherein each switch position corresponds to a different pneumatic circuit, and wherein the switch is configured to automatically cycle through each position at least once a second;wherein each pneumatic piston of the pressure distribution system is connected to an arm assembly and configured to apply a force on the arm assembly when its respective pneumatic circuit is connected to the pressure source by the switch. 2. The roller system of claim 1, wherein the rollers are configured to roll over the surface and detonate a land mine positioned along or under the surface. 3. The roller system of claim 1, wherein the rollers of a roller assembly are arranged in one or more rows. 4. The roller system of claim 3, wherein the rollers are arranged in two or more rows, each row having one or more rollers. 5. The roller system of claim 4, wherein the rows are substantially parallel. 6. The roller system of claim 4, wherein at least two of the rows have the same number of rollers. 7. The roller system of claim 4, wherein each sequential row has a greater number of rollers. 8. The roller system of claim 4, wherein the rollers in a first row are staggered in relation to the rollers in a second row. 9. The roller system of claim 8, wherein a distance between adjacent rollers in the first row is equal to or less than the width of a roller in the second row. 10. The roller system of claim 1, wherein two or more rollers of a roller assembly have different axes of rotation. 11. The roller system of claim 1, wherein the rollers of a roller assembly are arranged in a substantially triangular configuration. 12. The roller system of claim 1, wherein each roller assembly includes three rollers. 13. The roller system of claim 1, wherein the roller assembly is configured to pivot relative to the arm in at least one vertical plane. 14. The roller system of claim 1, wherein the roller assembly is configured to rotate about an axis of rotation that is substantially perpendicular to a longitudinal axis of the arm. 15. The roller system of claim 1, wherein side-to-side motion of the roller assembly relative to the arm is limited. 16. The roller system of claim 1, wherein the arm is configured to pivot relative to the frame in at least one vertical plane. 17. The roller system of claim 1, wherein the arm assemblies are arranged substantially in a row along a portion of the frame. 18. The roller system of claim 1, wherein the arm assemblies are arranged substantially parallel to each other. 19. The roller system of claim 1, wherein the pressure distribution system is configured to increase the force applied by at least one of the arm assemblies to the surface. 20. The roller system of claim 1, wherein the pressure distribution system is configured to apply a force sequentially to each of the arm assemblies. 21. The roller system of claim 1, wherein the pressure distribution system includes a strut connected to at least one of the plurality of arm assemblies. 22. The roller system of claim 21, wherein the strut is extendible. 23. The roller system of claim 21, wherein the pressure distribution system includes a pressure source configured to pressurize the strut. 24. The roller system of claim 23, wherein the pressure source comprises at least one of a compressor, pump, and gas cylinder. 25. The roller system of claim 23, wherein the pressure distribution system further includes an accumulator in communication with the pressure source. 26. The roller system of claim 21, wherein the pressure distribution system includes a plurality of struts, each of the plurality of struts connected to a different arm assembly. 27. The roller system of claim 26, wherein at least two of the plurality of struts are in fluid communication with each other. 28. The roller system of claim 27, wherein each of the plurality of struts is in fluid communication with each other. 29. The roller system of claim 26, wherein the pressure distribution system includes a manifold and wherein at least two of the plurality of struts are connected to the manifold. 30. The roller system of claim 21, wherein the strut comprises a piston. 31. The roller system of claim 30, wherein the piston is configured to pivot an arm assembly relative to the frame in response to a change in fluid pressure within the piston. 32. The roller system of claim 1, wherein the pressure distribution system is a closed pneumatic system. 33. The roller system of claim 1, wherein the switch is configured to connect each pneumatic circuit with the pressure source one at a time. 34. The roller system of claim 1, wherein the frame is configured to be connected to a vehicle. 35. The roller system of claim 34, wherein the frame is pivotably connected to the vehicle. 36. The roller system of claim 1, wherein the frame includes a side member and a first transverse member removably connected to the side member, the first transverse member having a length and being positioned substantially perpendicular to the side member. 37. The roller system of claim 1, wherein the roller system is configured to allow the number of arm assemblies to be adjusted. 38. The roller system of claim 1, wherein each roller includes a closeable inlet.