Shulou(Shulou.com)11/24 Report--

CTOnews.com March 30 news, in view of the inaccurate positioning in the tunnel industry, Amap announced that it has recently launched a new smartphone tunnel navigation solution, based on the self-developed VDR inertial navigation enhanced positioning (hereinafter referred to as VDR inertial navigation enhancement) technology, which can greatly improve the positioning accuracy and success rate in the long tunnel, and ensure the navigation reliability and experience of users in this complex scene.

According to reports, in the past, due to the masking of satellite signals, mobile phone navigation usually used "inertial navigation" technology to guide users in tunnels, and its basic principle was to use the direction and speed of the vehicle to calculate the instantaneous position. in order to achieve continuous autonomous positioning. However, because the calculation process is a cumulative process, the positioning error will accumulate with the extension of time, and can only determine the relative position and heading. When dealing with longer and more complex tunnels, the accuracy will decline greatly, resulting in untimely positioning, drift, or even complete loss.

Amap said that his self-developed VDR inertial navigation enhanced positioning technology integrates mobile phone sensors, road network, mobile network, satellite and other elements for mixed real-time operation, resulting in higher accuracy and stability results, in order to deal with the positioning inaccuracy caused by weak single satellite signal. Even when driving into a long tunnel, users can use their smartphones to get a more timely and accurate location in the tunnel, so as to prevent errors caused by unable to respond in time when there is a fork in the tunnel. Amap can even understand the current real-time and accurate driving speed to prevent violations such as speeding.

Amap official said that Gaode tunnel navigation has supported more than 600 tunnels nationwide, including Shanghai's Bund Tunnel, Renmin Road Tunnel, Hangzhou's Zizhi Tunnel, Wenyi Tunnel, etc., and will gradually cover all tunnel sections across the country. This feature is automatically activated when users drive to a supported tunnel route during navigation, and CTOnews.com partners can experience whether it is accurate or not.

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