Secure Beidou navigation chip and using method thereof

Abstract

The invention discloses a secure Beidou navigation chip, which can solve the problem of authenticity of a positioning data source fundamentally, makes logistics supervision more real and reliable, can effectively promote the application and practice of secure positioning in a logistics monitoring system, and has the advantages of small size, low power consumption and fast speed. The secure Beidou navigation chip comprises a Beidou chip, a security encryption chip, a terminal equipment main control chip and a communication module, wherein the Beidou chip and the security encryption chip are packaged into an integrated chip through SIP, and communicate with each other through a UART interface; the terminal equipment main control chip communicates with the integrated chip through an SPI interface; and navigation data sent by a satellite is received by the Beidou chip in the integrated chip through an antenna, the navigation data is sent to the security encryption chip through the UART interface for encryption, then sent to the terminal equipment main control chip through the SPI interface, and transmitted to a logistics monitoring platform through the communication module via the antenna. The invention further discloses a using method of the secure Beidou navigation chip.

Description

technical field [0001] The invention belongs to the technical field of position navigation and information security, and in particular relates to a safe Beidou navigation chip and a usage method. Background technique [0002] Existing location navigation is usually the unencrypted (plain text) positioning data output by the GPS module or the Beidou module directly collected by the mobile terminal equipment, which is prone to the problem of positioning data falsification. [0003] For positioning data falsification, a common solution is to separate the positioning chip and the encryption chip on the CPU chip of the terminal device, such as figure 1 As shown, the unencrypted positioning data is first transmitted to the main control chip of the terminal equipment, and the main control chip then calls the encryption chip to encrypt the positioning data and then wirelessly sends it to the logistics monitoring platform. Although this method avoids the positioning data during wirel...

AI Technical Summary

Problems solved by technology

[0006] 3. The size of the two chips is relatively large, the power consumption is relatively high, and the speed is relatively slow. It is not convenient to use in small battery-powered mobile terminals such as electronic locks and mobile phones.

Images