CN-122028033-A - High-safety anti-interference encrypted navigation communication weather sounding module method and system convenient for secondary development

CN122028033ACN 122028033 ACN122028033 ACN 122028033ACN-122028033-A

Abstract

The invention discloses a high-safety anti-interference encrypted navigation communication weather sounding module convenient for secondary development and a system thereof, and relates to the technical field of embedded systems, internet of things safety communication and radio frequency circuit design. The invention reduces the research and development threshold and period, innovatively adopts the SAW filter technology to effectively inhibit the in-band interference of wireless emission harmonic waves to the navigation frequency band, ensures the stability and reliability of positioning and communication in a complex electromagnetic environment, simultaneously greatly saves the PCB area and BOM cost of a terminal product by virtue of integrated stamp hole packaging design, and accelerates the product marketing process.

Inventors

LI XIN
Ma Peiqiang
GUO QIYUN
ZHAO PEITAO
LIANG JIAXIANG
XIA YUANCAI
LUO HAOWEN

Assignees

中国气象局气象探测中心

Dates

Publication Date: 20260512
Application Date: 20260129

Claims (10)

1. A high-safety anti-interference encrypted navigation communication weather sounding module method convenient for secondary development is characterized by comprising the following steps of, Presetting a unique subkey by adopting an SoC chip according to a secure encryption main control unit; Receiving satellite signals and generating positioning information by using a navigation positioning unit, and transmitting data to a security encryption main control unit through a serial interface; According to the wireless communication unit, the encrypted data packet is transmitted back to the ground station in a wireless mode, and the ground station is transmitted to the center platform through a network; the harmonic suppression filter circuit and the power management unit are integrated on a PCB which is packaged by a stamp hole.
2. The method for a weather sounding module for high-safety anti-interference encrypted navigation communication convenient for secondary development as claimed in claim 1, wherein the SoC chip comprises an SoC chip adopting built-in SM2, SM3 and SM4 algorithm hardware acceleration engines, and the SoC chip is used for having a safety key storage area; the secure encryption main control unit comprises a secure chip and a main control MCU function through a secure key storage area, a GPIO, UART, I-C, SPI, ADC peripheral interface is provided, the peripheral interface is led out through a stamp hole, and at the moment, a user is connected with various sensors and executes custom business logic to support secondary development.
3. The method for a high-safety anti-interference encrypted navigation communication weather sounding module convenient for secondary development as claimed in claim 2, wherein the high-safety anti-interference encrypted navigation communication weather sounding module comprises an end-to-end safety data stream, a radio frequency optimization scheme and a hierarchical key management and end-to-end safety data stream; the end-to-end safety data flow comprises the steps of collecting sensor data through a peripheral interface, receiving positioning information sent by a navigation positioning unit, calling a hardware engine of a national encryption algorithm, and encrypting and checking the integrity of the converged data packet; And sending the encrypted data packet to the wireless communication unit through the serial port, and transmitting the encrypted data packet to the cloud.
4. The method for a weather sounding module for high security anti-interference encrypted navigation communication convenient for secondary development as set forth in claim 3, wherein the security encryption main control unit, the navigation positioning unit, the wireless communication unit, the harmonic suppression filter circuit and the power management unit are core unit functions, and the core unit functions are integrated on a PCB (printed circuit board) packaged by a stamp hole.
5. The method for a weather sounding module for encrypted navigation communication with high safety and anti-interference capability convenient for secondary development as set forth in claim 4, wherein the RF optimization scheme comprises integrating a primary SAW filter after a RF transmitting link power amplifier of the wireless communication unit; The primary surface acoustic wave filter is used for filtering secondary or third harmonic waves generated by a wireless transmitting frequency band.
6. The method for a weather sounding module for high security anti-interference encrypted navigation communication convenient for secondary development as set forth in claim 5, wherein said hierarchical key management and end-to-end secure data stream comprises a hierarchical key management system employing master keys and sub-keys; The hierarchical key management system comprises key generation and presetting, data encryption and transmission and data decryption.
7. The method for conveniently secondarily developing the high-safety anti-interference encrypted navigation communication weather sounding module according to claim 6, wherein the key generation and presetting comprises the steps of generating a globally unified master key by a data center in a production stage of the high-safety anti-interference encrypted navigation communication weather sounding module, storing the master key, distributing an identification ID to each high-safety anti-interference encrypted navigation communication weather sounding module, using a national secret SM3 or KDF algorithm as a key derivation function, taking the master key and the identification ID of the high-safety anti-interference encrypted navigation communication weather sounding module as inputs, obtaining a uniquely-derived subkey, and presetting the subkey and the identification ID of the module in a safe storage area of a safe encryption master control unit in a safe environment; The data encryption and transmission comprises the steps that when the high-safety anti-interference encryption navigation communication weather sounding module works, a safety encryption main control unit collects sensor and positioning data through an external interface, a national encryption algorithm hardware engine is called by the main control unit, a unique subkey preset in the main control unit is used for encrypting and checking the integrity of a data packet, and the encrypted data packet and an identification ID of the high-safety anti-interference encryption navigation communication weather sounding module are transmitted to a cloud data center through a wireless network; After the cloud data center receives the data, the identification ID of the high-safety anti-interference encrypted navigation communication weather sounding module is analyzed, the master key and the identification ID which are stored safely are used as input, a KDF algorithm which is the same as that of the high-safety anti-interference encrypted navigation communication weather sounding module is adopted, the sub key corresponding to the high-safety anti-interference encrypted navigation communication weather sounding module is recalculated, the calculated sub key is used for decrypting the received encrypted data, and the integrity is verified and the original plaintext information is obtained.
8. The method of the weather sounding module for the encrypted navigation communication with high safety and anti-interference capability, which is convenient for secondary development, according to claim 7, is characterized in that the formula of the unique subkey is as follows: Wherein, the Representing the unique sub-key of the module, Representing the global master key and, A unique identifier representing the module is provided, A deterministic algorithm based on the national secret SM3 or standard key derivation function is represented.
9. The method for the weather sounding module for the high-safety anti-interference encrypted navigation communication convenient for secondary development of claim 8, wherein the deterministic algorithm based on the national secret SM3 or the standard key derivation function comprises integrity check tag generation logic based on the national secret SM3 algorithm, and the integrity check tag is generated through the national secret SM3 algorithm, wherein the specific formula is as follows: Wherein, the The indication of the integrity check tag is made, Representing the sensor and positioning raw data, Representing a time stamp.
10. The high-safety anti-interference encrypted navigation communication weather sounding module system convenient for secondary development is based on the high-safety anti-interference encrypted navigation communication weather sounding module method convenient for secondary development as set forth in any one of claims 1-9, and is characterized by comprising, The secure encryption main control unit is used for presetting a unique subkey by adopting an SoC chip; The navigation positioning unit is used for receiving satellite signals and generating positioning information, and transmitting data to the security encryption main control unit through the serial interface; the wireless communication unit is used for transmitting the encrypted data packet back to the ground station in a wireless mode, and the ground station transmits the encrypted data packet to the center platform through a network The harmonic suppression filter circuit and the power management unit are integrated on a PCB which is packaged by a stamp hole.

Description

High-safety anti-interference encrypted navigation communication weather sounding module method and system convenient for secondary development Technical Field The invention relates to the technical fields of embedded systems, internet of things safety communication and radio frequency circuit design, in particular to a high-safety anti-interference encryption navigation communication weather sounding module method and system convenient for secondary development. Background With the exacerbation of global climate change and the frequent occurrence of extreme weather events, meteorological observations, particularly high-altitude image detection, are increasingly playing a role in disaster prevention and reduction, numerical weather forecast and climate research. The weather sounding system is used as a core means for acquiring the key parameters of the atmospheric vertical section such as temperature, pressure, humidity, wind and the like, and is rapidly developed towards the direction of intelligence, networking and high reliability. Meanwhile, the Internet of things and the embedded security technology are deeply fused, so that the requirements on the security, the integrity and the real-time performance of sounding data are continuously improved, and the social requirement on a new generation sounding module which has high security protection capability and strong anti-interference performance and is easy to integrate and develop is urgent. The existing integrated module scheme focuses on function stacking, often ignores EMC problems in the system, causes that performance cannot reach expectations in practical application, is difficult to effectively filter harmonic interference close to carrier frequency by conventional simple filtering means, and cannot effectively solve radio frequency interference problems in the system while ensuring high safety and easy development. Disclosure of Invention The invention is provided in view of the problems existing in the existing high-safety anti-interference encrypted navigation communication weather sounding module which is convenient for secondary development. Therefore, the invention aims to solve the problem that the radio frequency interference inside the system cannot be effectively solved while ensuring high safety and easy development. In order to solve the technical problems, the invention provides the following technical scheme: in a first aspect, an embodiment of the present invention provides a method for a weather sounding module for high security anti-interference encrypted navigation communication, which is convenient for secondary development, and includes, according to a security encryption main control unit, presetting a unique subkey by using an SoC chip; Receiving satellite signals and generating positioning information by using a navigation positioning unit, and transmitting data to a security encryption main control unit through a serial interface; According to the wireless communication unit, the encrypted data packet is transmitted back to the ground station in a wireless mode, and the ground station is transmitted to the center platform through a network; the harmonic suppression filter circuit and the power management unit are integrated on a PCB which is packaged by a stamp hole. As a preferred scheme of the high-safety anti-interference encryption navigation communication weather sounding module method convenient for secondary development, the invention comprises that the SoC chip comprises an SoC chip adopting built-in national secret SM2, SM3 and SM4 algorithm hardware acceleration engines, and the SoC chip is used for having a safety key storage area; the secure encryption main control unit comprises a secure chip and a main control MCU function through a secure key storage area, a GPIO, UART, I-C, SPI, ADC peripheral interface is provided, the peripheral interface is led out through a stamp hole, and at the moment, a user is connected with various sensors and executes custom business logic to support secondary development. The invention relates to a method for a high-safety anti-interference encrypted navigation communication weather sounding module which is convenient for secondary development, and the method comprises the following steps of an end-to-end safety data stream, a radio frequency optimization scheme and a hierarchical key management and end-to-end safety data stream; the end-to-end safety data flow comprises the steps of collecting sensor data through a peripheral interface, receiving positioning information sent by a navigation positioning unit, calling a hardware engine of a national encryption algorithm, and encrypting and checking the integrity of the converged data packet; And sending the encrypted data packet to the wireless communication unit through the serial port, and transmitting the encrypted data packet to the cloud. The high-safety anti-interference encryption navigation communication weather sounding mod