Industrial Wireless Pulse Communication for Low-Power Signal Links
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Solution Overview
Problem
Wireless communication systems in industrial settings face issues such as high power consumption, interference, and multi-path fading, particularly in environments with metal objects and moving personnel, and require operator intervention for probe and base station recognition.
Innovation Solution
A wireless digital communication method using energy-efficient radio pulses with short durations and longer silence intervals, eliminating the need for a modulated carrier, and enabling self-recognition between probes and base stations through coordinated clock synchronization and accelerometer-assisted event detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a modulated carrier signal is used for wireless communication, then information can be transmitted, but power consumption is considerable
Solution Approach 1:
The patent applies periodic action by using discrete radio pulses transmitted at specific intervals rather than continuous carrier modulation. The communication system transmits information through periodically spaced pulses with defined durations and silence intervals, eliminating continuous power consumption while maintaining information transmission capability.
2Loss of information
If continuous carrier transmission is used, then information can be communicated, but interference occurs between coexisting wireless systems
Solution Approach 1:
The patent uses periodic pulse transmission with defined silence intervals between pulses and between different transmissions. This periodic structure creates temporal separation between communication events, allowing coexisting wireless systems to operate without continuous interference while still achieving reliable information communication.
3Reliability
If continuous electromagnetic field emission is used, then communication can occur, but multi-path fading produces areas of strong destructive interference
Solution Approach 1:
The patent extracts and eliminates the continuous carrier wave component from the communication signal. By removing the continuous electromagnetic field emission and using only discrete, short-duration radio pulses, the system eliminates the primary cause of multi-path fading and destructive interference patterns while maintaining communication reliability through pulse-based information encoding.
4Loss of information
If wireless communication protocol is used, then probe and base station can communicate, but operator intervention is required for recognition
Solution Approach 1:
The patent implements self-service through automatic recognition and pairing mechanisms. The probe and base station autonomously identify each other and establish communication without requiring operator intervention for recognition procedures. The system uses predefined identification protocols and automatic authentication to enable seamless wireless communication setup.
Data Source
AI summary
Wireless digital communication method for the communication between two electronic devices (3, 16) of an industrial apparatus (1), including—encoding each bit of information by a respective sequence of a certain number (N) of pulses (25) that alternate with a corresponding number (N−1) of silence intervals (26), each pulse having a pulse duration (TI) shorter than or equal to ns and said silence intervals having respective silence durations (TSj) longer than or equal to 30 ns—transmitting, by a first electronic device, a radio signal (RS) comprising a plurality of radio pulses corresponding to the sequence of pulses without modulating any radio carrier, and—receiving and decoding, by the other electronic device, said radio signal to obtain said bit of information. The method may include additional steps for exchanging information between the electronic devices according to which one of the electronic devices, while in a stand-by state, transmits a request message, waits for a reply message from the other electronic device (if and when some conditions are complied with) and, upon receiving the reply message, switches to an operating state in which the two electronic devices are communicatively coupled to each other.