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    Nowadays, people like to use mobile phones for navigation, but people often complain that navigation in viaducts often makes mistakes. For example, when on the viaduct, GPS says to turn right, but in fact there is no right exit on the right. This is mainly due to the misnavigation caused by the GPS's inability to determine whether you are on or under the bridge. Generally, the height of the upper and lower floors of the viaduct will be several meters to more than ten meters away, and the error of GPS may be dozens of meters, so it can be understood that the above things happen. If a pressure sensor is added to the mobile phone, it will be different. Its accuracy can be 1 meter, so that it can assist GPS to measure the height, and the problem of wrong navigation will be easily solved.

    Sencoch GZP absolute pressure series pressure sensor is a miniaturized digital gas pressure sensor with high accuracy and low current consumption. It has both pressure and temperature measurement characteristics and can be widely used in mobile devices such as sports wearable devices and mobile phones.