Cloud positioning system and method based on NB-IoT and Beidou

Abstract

The invention discloses a cloud positioning system and method based on NB-IoT and Beidou. The system comprises a Beidou satellite which is used for providing a high-precision positioning signal; internet-of-thing equipment which is used for calibrating time and downloading an initial position and Beidou satellite almanac data through an NB-IoT network; the NB-IoT network which is used for transmitting data; a cloud computing server which is used for receiving Beidou code phase data; and a cloud database which is used for storing internet-of-thing equipment information and a positioning calculation result, wherein the Beidou satellite and the internet-of-thing equipment are connected with the cloud computing server through the NB-IoT network, the cloud computing server is connected with thecloud database, and sends extremely small Beidou satellite code phase data to the cloud computing server through the NB-IoT, and the cloud computing server calculates the high-precision position of the equipment according to the Beidou satellite code phase, and the purpose of reducing the energy consumption of the internet-of-thing equipment through reducing the operation time of the Beidou module and the data transmission amount of the NB-IoT network is achieved.

Description

technical field [0001] The invention relates to the technical field of Beidou cloud positioning, in particular to a cloud positioning system and method based on NB-IoT and Beidou. Background technique [0002] The Internet of Everything is the development trend of the Internet of Things today. NB-IoT communication technology is the key technology to realize the Internet of Everything. Thousands of devices can be interconnected and managed through the BN network. NB-IoT communication technology is a wide-area narrowband Communication technology, its main advantages are large signal coverage and a large number of connected devices, but its data transmission rate is low, and it is suitable for scenarios where the amount of transmitted data is small and power consumption is strictly controlled. Most IoT applications need to know the location of the device Information, such as personnel management, vehicle management, animal husbandry management, etc., the current main outdoor posi...

AI Technical Summary

Problems solved by technology

Traditional Beidou positioning equipment needs at least 30 seconds to complete accurate positioning. For low-power devices, 30 seconds will cause a lot of energy consumption, which is not conducive to the long-term work of the equipment. Using the auxiliary ephemeris method for Beidou positioning, It can effectively reduce the positioning time, but the ephemeris data needs to be sent to the IoT device through the network, and the data volume will exceed 3 kilobytes. Frequent downloading of the auxiliary ephemeris data will also increase energy consumption and the first positioning time. IoT devices generally With the timing positioning method, the interval between two positionings in most application scenarios is long. The traditional IoT device Beidou positioning module needs at least 30 seconds to complete accurate positioning, which will cause great energy consumption and is not conducive to the long-term work of the device.

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