[游戏促进科技活动的开展]游戏是儿童最喜欢的活动，它集自由性、趣味性、假想性和创造性于一体，这些属性与小学生的好奇、好玩、好动以及无忧无虑的年龄特征完全契合。因此，寓科学教育于游戏中，让小学生在...+阅读
The database can also be queried using a technique developed in Russia, known as the theory of inventive problem solving, or TRIZ. In essence, this is a set of rules that breaks down a problem into smaller parts, and those parts into particular functions that must be performed by ponents of the solution. Usually these functions are pared against a database of engineering patents, but Dr Vincent's team he substituted their database of “biological patents” instead. These are not patents in the conventional sense, of course, since the information will be ailable for use by anyone. By calling biomimetic tricks “biological patents”, the researchers are just emphasising that nature is, in effect, the patent holder.
One way to use the system is to characterise an engineering problem in the form of a list of desirable features that the solution ought to he, and another list of undesirable features that it ought to oid. The database is then searched for any biological patents that meet those criteria. So, for example, searching for a means of defying grity might produce a number of possible solutions taken from different flying creatures but described in engineering terms. “If you want flight, you don't copy a bird, but you do copy the use of wings and aerofoils,” says Dr Vincent.
He hopes that the database will store more than just blueprints for biological mechanisms that can be replicated u
sing technology. Biomimetics can help with software, as well as hardware, as the robolobster built by Dr Ayers demonstrates. Its physical design and control systems are both biologically inspired. Most current robots, in contrast, are deterministically programmed. When building a robot, the designers must anticipate every contingency of the robot's environment and tell it how to respond in each case. Animal models, however, provide a plethora of proven solutions to real-world problems that could be useful in all sorts of applications. “The set of behioural acts that a lobster goes through when searching for food is exactly what one would want a robot to do to search for underwater mines,” says Dr Ayers. It took nature millions of years of trial and error to evolve these behiours, he says, so it would be silly not to take advantage of them.
Although Dr Vincent's database will not be capable of providing such specific results as control algorithms, it could help to identify natural systems and behiours that might be useful to engineers. But it is still early days. So far the database contains only 2,500 patents. To make it really useful, Dr Vincent wants to collect ten times as many, a task for which he intends to ask the online munity for help. Building a repository of nature's cleverest designs, he hopes, will eventually make it easier and quicker for engineers to steal and reuse them.
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