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Miniature reed switch from Coto Technology

06.05.2013

Coto Technology has been specializing in miniature electronics contacts for over 90 years. During the Design West Conference, an industry veteran announced the release of a new product called the RedRock RS-A-2515. The product is a sealed magnetically controlled contact (reed switch), which uses MEMS technology.

According to the manufacturer, RedRock RS-A-2515 is the smallest reed switch in the world. In numerical terms, the dimensions of the RedRock RS-A-2515 are 1,01 x 2,08 x 0,94 mm.

The advantages of the product, provided by the use of MEMS technology, in addition to its miniaturization, the company refers to the high similarity of the parameters of individual instances and high reliability.

The response sensitivity is 5-25 mT, which allows you to control the contact at a distance of up to 20 mm using a small magnet. The maximum continuous operating voltage of the RS-A-2515 is 100 V, the current is 50 mA (or 35 mA in the case of AC). Like other reed switches, the RedRock RS-A-2515 does not consume power, making it particularly suitable for battery powered devices.

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robot cheating robot 18.12.2012

Georgia Tech scientists have developed robots that can fool each other. They got the idea of development in the behavioral model of ordinary squirrels and birds. The research will find a practical application in future military developments. The work is published in IEEE Intelligent Systems.

A team of scientists led by Professor Ronald Arkin began with a biological study - they studied how squirrels behave when they collect acorns and hide them in their hiding places. When another squirrel can peep the hiding place, the animal changes its behavior. Instead of going to places where her supplies can actually be stored, she visits false caches, thus making it difficult to find the real ones. It was this model that scientists transferred to robots. If an enemy is present somewhere nearby, the robot can change its patrol strategy to deceive another robot or even humans. Thus, you can buy time before the arrival of reinforcements.

In addition, Arkin studied the behavior of birds that "bluff" in the face of danger - they pretend to be stronger than they are and even attack the enemy. Not only empirical data, but also a mathematical model proves that such deception is an effective strategy, the benefits of it outweigh the risk of being caught. And in a military operation, a robot that is itself threatened can just as effectively feign the ability to fight an adversary. Even if he is unable to actually defend himself, his actions can affect the enemy's intelligent technology - make it decide that the risk is unreasonably high. "Deception, if used at the right time, can minimize the threat," says Arkin.

Professor Arkin also points out that the expansion of technology beyond the military realm, where sometimes "everything is fair" can raise many ethical questions. He strongly recommends carefully considering how morally acceptable the results of research that have taught robots to cheat.

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