Satellite Bluetooth Low Energy Direct-to-Device Transmission
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Solution Overview
Problem
Existing mechanisms are inadequate for quickly and directly transmitting relevant information to populations affected by critical situations, especially in areas without ground telecommunications infrastructure, due to congestion and inefficiencies in satellite data processing and transmission.
Innovation Solution
A satellite-based device using Bluetooth Low Energy (BLE) communication protocol to broadcast information directly to ground terminals, employing a directional antenna and pre-compensating for the Doppler effect, allowing for efficient transmission of secondary information without requiring ground infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If information is transmitted through ground stations and terrestrial networks, then existing infrastructure can be utilized, but the infrastructure becomes congested and saturated during critical situations
Solution Approach 1:
The patent extracts the information transmission function from the terrestrial network infrastructure and relocates it to satellite-based Bluetooth Low Energy direct-to-device communication. This removes the dependency on congested ground stations and cellular networks, enabling reliable communication during critical situations when terrestrial infrastructure is saturated or damaged.
Solution Approach 2:
The patent introduces satellite-based Bluetooth Low Energy as an intermediary communication layer between observation satellites and mobile terminals. This intermediary bypasses the traditional ground station relay, providing a resilient communication path that operates independently of terrestrial network status.
2Measurement precision
If observation satellites acquire large volumes of information, then coverage and precision improve, but transmission delay increases and information becomes obsolete
Solution Approach 1:
The patent extracts critical information processing from ground stations and moves it to on-board satellite systems. By performing analysis and selection of critical information directly on the satellite, the system eliminates the time delay associated with transmitting all raw data to ground stations for processing, thereby reducing overall transmission delay while maintaining high observation precision.
3Adaptability or versatility
If traditional satellite communication uses ground stations for information relay, then existing protocols can be used, but the communication chain becomes complex and vulnerable to infrastructure failure
Solution Approach 1:
The patent extracts the communication function from the complex ground station infrastructure and implements direct satellite-to-device Bluetooth Low Energy communication. This simplifies the communication chain by eliminating intermediate ground stations and terrestrial network components, reducing system complexity while maintaining compatibility with standard mobile terminals through widely deployed Bluetooth technology.
4Area of stationary object
If satellites transmit information using traditional high-power methods, then transmission range is sufficient, but energy consumption increases and existing terminal compatibility is limited
Solution Approach 1:
The patent changes the transmission parameters by using Bluetooth Low Energy's optimized modulation and coding schemes instead of traditional high-power satellite communication methods. This enables sufficient transmission range for emergency communication while significantly reducing energy consumption, and the technology leverages existing low-power terminal capabilities already deployed in mobile devices.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables rapid and resilient communication of critical information to mobile terminals, bypassing ground infrastructure issues and ensuring timely alerts in disaster scenarios, even in areas with poor coverage.
Implementation Method 1
a directional antenna adapted to transmit a signal carrying said information in a broadcast cone, with a transmission power greater than or equal to a few Watts in a frequency band between 2.4 and 2.8 GHZ
Implementation Method 2
processing means for analyzing said primary information in order to detect within said primary information a situation corresponding to a criterion
Data Source
AI summary
A device capable of being installed on a satellite, comprising telecommunication means for broadcasting information directly to at least one telecommunication terminal on the ground. The information is broadcast according to a Bluetooth Low Energy protocol, and in AD mode. The device can be used in particular for an Earth observation satellite.