Phone positioning error will only be the size of the coin
US developed a centimeter-level precision positioning system that can be used in mobile devices
Science and Technology Daily, Beijing, May 6 (Reporter Wang Xiaolong) American researchers have developed a positioning system with centimeter-level accuracy. Based on GPS signals, the system can increase the positioning accuracy of mobile devices such as mobile phones by hundreds of times at a lower cost, and the size of the error is reduced from the general size of the car to the size of the coin.
According to a report published in the professional magazine "GPS World", the centimeter-level accuracy has been applied in geological exploration and mapping, but these systems are often expensive and bulky, requiring huge antennas to work and cannot be applied. On a mobile device. The breakthrough in the new research is the development of a powerful, sensitive GPS receiver for mobile devices such as smartphones. Positioning with centimeter-level accuracy with these small devices was previously unimaginable. Researchers expect their software to reduce antenna manufacturing costs and make centimeter-accurate positioning on mobile devices economically viable.
Todd Humphries, chief researcher at the Department of Aeronautical Engineering and Engineering Mechanics at the University of Texas at Austin, who was responsible for the study, and his team spent six years manufacturing the specialized receiver, which they named "GRID." This device is capable of extracting the so-called carrier phase from a low cost antenna. GRID is currently running outside the phone, and researchers say it will eventually be integrated into the phone. They have built a low-cost system in the lab that uses GRID to increase the accuracy of cell phone positioning by a factor of 100.
This centimeter-scale GPS plus smartphone camera can also be used to quickly build 3D maps around itself, which will greatly expand the playable space of virtual reality games. Humphries said: "Imagine running a game with other gamers in the backyard of your home instead of sitting in front of the monitor. It must be very wonderful."
In addition, researchers believe that their technology can bring more convenience to people's daily lives. For example, centimeter-scale GPS may lead to better car networking technology and revolutionize car-to-car communication. If your car knows the exact location and speed of the car at the blind spot, you can react in advance to avoid collisions.
The emergence of centimeter-level positioning of civilian products is inevitable for technological development and market demand. The location information-based service (LBS) is a typical and streaming industry of the mobile Internet. Pushing the quality of information to the extreme is the inherent demand of the Internet + industry. As a device that provides basic data, fast and accurate is the core indicator of the inspection positioning system, and it also determines its role in the Internet ecosystem. If this study improves the positioning efficiency while improving the accuracy, it will bring a new service experience and business model. Perhaps, seeing the information in the Science and Technology Daily, many entrepreneurs have already begun to act.
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