A solar paneled wall that pays for itself and one that sees underground just two of the roughly 200 ideas submitted for President Donald Trumps border wall.

Bidding for the project closed earlier this week. More than 30 companies in Arizona are looking for a piece of the multi-billion dollar project.

DarkPulse Technologies Inc. is a company that believes technology is the answer. DarkPulse teamed up with other companies to submit a bid that includes ballistic resistant concrete capable of repelling a tank attack. But the secret weapon in their wall is sensors that can detect an attack, or even an attempt to climb or tunnel under the wall.

If anyone comes up to the wall, tries to climb it, go through it, tunnel under it, border patrol is going to know, said Dennis OLeary, CEO of DarkPluse Technologies. The technology is such that it could detect movement in the soil.

OLeary said the company uses fiber wire embedded in the wall itself and ground around the wall. Pressure sensitive fiber can actually produce an image of any attempted attack, climbing attempt or tunnel. The image return looks similar to thermal imaging and can be relayed to border agents in real time. It will determine the point of the problem with accuracy within a few millimeters. So we would actually see them coming up to the sensor area. We would be able to detect them crossing the wall. We would see them where they end up on the other side and then you just have your team of guys waiting there for them to pop through on the surface, said OLeary.

OLeary said his fiber technology would only add $400 million to the overall cost of the wall. Projections for that cost range from $12 billion to $36 billion.

The administration expects to pick design finalists by June.

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Arizona company details border wall pitch centered on technology - ABC15 Arizona