Once a wireless sensor chip can be produced at a low cost, there are some maneuverability to countless such chips connected to a well-designed building infrastructure. Ahmed predicts: "Ultimately, we'll be able to use sensors to mimic nature." Just as our senses and the nervous system continually send information to the brain that allows us to make various decisions, the processor within the building management system can accept and process Data from thousands of sensors, and issue appropriate instructions to various subsystems. Building management systems can perform many new functions by combining user information. Building users can tell the system some information, such as when they come back, which security mechanisms to use, or which rooms need ventilation. Sensors of all kinds ensure that the management system always knows when the toilets need to be serviced, where the corrosive substances are being released, or where people are gathering. Many sensors installed in buildings are often used to convey various types of information to buildings. At present, Siemens scientists are working on how to combine the many sensor functions into a compact chip. For a long time, sensors could not be widely used in building systems because of their expensive price. However, a large number of ongoing studies have led to the fact that today's sensors are smaller, more affordable and more flexible to use, such as the carbon dioxide sensors developed by Siemens. At the Siemens Research Institute in Munich, Germany, physicist Rainer Strzoda walked into his workspace and wanted to check if the air-conditioning system was working properly. However, to get the job done, he just needs to look at a small installation on the wall. Today, the laser sensor prototype developed by Siemens scientists detected 400 ppm of carbon dioxide. "If we're in an environment that contains only 380ppm of carbon dioxide, that would be good data," says Strzoda. "Because the data shows that the current indoor carbon dioxide content is only slightly higher than outdoors." The remaining One day, as Strzoda and his colleagues continued to research and discuss the findings, indoor CO 2 levels gradually rose to about 600 700 ppm. Indoor carbon dioxide levels have risen dramatically just because the working scientists breathe. In fact, the environment in which Strzoda and his colleagues live is still relatively good. The air in most of the world's offices and meeting rooms has a carbon dioxide level of over 1,000ppm. In such an environment, people begin to feel tired, uncomfortable and unable to concentrate. At present, most buildings still do not have carbon dioxide sensors installed, but Dr Maximilian Fleischer, head of the Strzoda research group, predicts that the situation will soon improve. His research team has developed a number of inventions on the sensor, these inventions have been successfully applied to Siemens new products. With as many as 160 patents filed under the Fleischer name, he deserves to be one of Siemens' most inventive inventors. Sensors for detecting light and temperature are now widely used. Gas sensor is a micro-electromechanical system (MEMS), which is a relatively new research. The MEMS here consists of a silicon chip and an oxide layer. These laser sensors are still in the initial stages of research and development and are still on the market for some time.
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Sensors applied to intelligent buildings Building systems also have life