US-20260125006-A1 - SYSTEM AND METHOD FOR PROVIDING COMMUNICATION BETWEEN DEVICES OF VEHICLE USING INTRA-VEHICULAR NETWORK

US20260125006A1US 20260125006 A1US20260125006 A1US 20260125006A1US-20260125006-A1

Abstract

A communication system and method for providing communication between one or more physical devices of a vehicle using an intra-vehicular network is disclosed. The system includes a conductive medium, and a processor. The conductive medium includes a plurality of signal conductors, and floating reference/ground conductors. Plurality of signal conductors configured with an Electro-Quasistatic (EQS) field generate an Electro-Quasistatic (EQS) signal from a source device. The plurality of signal conductors configured to forward the generated EQS signal to a destination device via the conductive medium using the EQS field. Further, the floating reference/ground conductors are configured outside the conductive medium to receive the forwarded EQS signal from the source device via the EQS field. The floating reference/ground conductors configured to establish a communication channel between the source device and the destination device. Furthermore, the processor is configured to select a mode of communication between the source device and the destination device.

Inventors

David Yang
Shreyas Sen
Shovan Maity

Assignees

Quasistatics Inc.

Dates

Publication Date: 20260507
Application Date: 20241104

Claims (20)

1 . A communication system for providing communication between one or more devices of a vehicle using an intra-vehicular network comprising: a source device of a vehicle, comprising a first communication module, wherein the vehicle comprises a conductive medium, and wherein the first communication module comprises: a signal conversion unit configured to convert a digital signal associated with the source device into one of an electric field and an electromagnetic wave suitable for transmission via the conductive medium; a destination device of the vehicle comprising a second communication module, wherein the second communication module comprises: a signal reception unit configured to receive a transmitted signal via the conductive medium and convert the received signal into the digital signal associated with the destination device; a conductive medium comprising a metal chassis of the vehicle, wherein the conductive medium enables communication between the first communication module and the second communication module, comprising: a plurality of signal conductors configured to: generate an Electro-Quasistatic (EQS) signal from the source device, and forward the generated EQS signal to the destination device via the conductive medium using a EQS field; and a floating reference conductors configured outside the conductive medium to: receive the forwarded EQS signal from the source device via the EQS field, and establish a communication channel between the source device and the destination device; and a control unit communicatively coupled to the source device and the destination device configured to: adjust the positioning of the plurality of signal conductors and the floating reference conductors to select between a wide-range communication mode and a short-range secure communication mode based on operational requirements of the vehicle; select a mode of communication between the source device and the destination device based on at least one of a distance between the source device and the destination device, a size of the plurality of signal conductors, and a location of the destination device, wherein the modes are selectively activated based on the dimensions of the vehicle chassis to optimize a communication frequency and minimize voltage loss within the vehicle; and tune the operational frequency of the modes based on the size of conductive boundaries within a vehicle chassis to optimize communication performance.
2 . The communication system of claim 1 , wherein the Electro-Quasistatic (EQS) fields coupled to the vehicle chassis is within a frequency range of 0.1 MHz to 1 GHz, and resonant cavity modes formed by the conductive walls of the vehicle chassis are within a frequency range of 0.1 MHz to 10 GHz.
3 . The communication system of claim 1 , wherein the mode comprises at least one of a capacitive return path mode, and a waveguide communication mode, wherein the modes create localized high-intensity field regions and regions of destructive interference, regions with constructive interference with communication optimized by selecting destination device positions within the vehicle, wherein the mode comprises one of a Electro Quasi-Static (EQS) field mode and an electromagnetic wave (EM) resonant cavity mode for communication based on predefined conditions, wherein the EQS field mode enables low-frequency communication through electric field coupling within the metal chassis, and the resonant cavity mode enables high-frequency communication by exciting electromagnetic waves in the conductive medium, wherein the vehicle chassis acts as a waveguide.
4 . The communication system of claim 1 , wherein configuration of the floating reference conductors enables one of a bi-phasic and galvanic-like behaviour causing a localized concentration of electric field intensity around the floating reference conductors, wherein the configuration provides a secure communication channel by creating localized regions of field intensity.
5 . The communication system of claim 1 , wherein communication is established using a voltage mode, wherein when the region of interest aligns with a maximum node of the standing wave a channel voltage loss of less than 40 dB is achieved.
6 . The communication system of claim 3 , wherein in the EM resonant cavity mode, the control unit is configured to: generate the electromagnetic waves within the conductive boundaries of the vehicle chassis; and form a standing wave pattern within a cavity defined by vehicle chassis dimensions, wherein a field intensity exhibits sharp drop-off at the conductive boundaries of the vehicle chassis.
7 . The communication system of claim 1 , wherein the floating reference conductors is positioned closer to an outer surface of the vehicle chassis.
8 . The communication system of claim 1 , wherein the conductive medium comprises at least one of at least one of a resistive, a capacitive, and an inductive impedances.
9 . The communication system of claim 1 , wherein in the resonant cavity mode, the control unit is configured to: excite the vehicle chassis at specific discrete frequencies determined by a dispersion relation of the vehicle chassis and conductive boundaries; and wherein the dimensions of the vehicle chassis define available resonant modes to transmit data at the specific discrete frequencies.
10 . The communication system of claim 1 , wherein the EQS fields are confined to a specific distance from the surface of the vehicle chassis.
11 . The communication system of claim 1 , wherein the control unit is configured to maintain a ground isolation via floating ground capacitive coupling.
12 . The communication system of claim 1 , wherein the modes are established by confining the electromagnetic waves within conductive walls of the vehicle chassis, wherein the vehicle chassis is excited as a resonant cavity, wherein the communication system comprises an electrical antenna configured to induce resonant electromagnetic behaviour within the vehicle chassis.
13 . The communication system of claim 1 , wherein the positioning of the plurality of signal conductors and the floating reference conductors are optimized to control the electric field characteristics.
14 . The communication system of claim 1 , wherein the resonance frequency of the source device is adjusted based on the materials present within the vehicle, wherein the materials exhibit an electric permeability greater than 1, thereby causing a shift in the resonance frequency to a lower value to adapt an operating frequency in response to varying electromagnetic properties of an internal environment.
15 . A method for providing communication between one or more physical devices of a vehicle using an intra-vehicular network comprising: generating, by a plurality of signal conductors, an Electro-Quasistatic (EQS) signal from a source device; establishing, by a conductive medium, a communication channel between the source device and a destination device; adjusting, by the processor, the positioning of the signal conductors and the floating reference conductors to select between a wide-range communication mode and a short-range secure communication mode based on operational requirements of the vehicle; selecting, by the processor, a mode of communication between the source device and the destination device based on at least one of a distance between the source device and the destination device, a size of the plurality of signal conductors, and a location of the destination device, wherein the modes are selectively activated based on the dimensions of the vehicle chassis to optimize a communication frequency and minimize voltage loss within the vehicle; and tuning, by the processor, the operational frequency of the resonant cavity modes based on the size of the conductive boundaries within the vehicle chassis to optimize communication performance.
16 . The method of claim 15 , wherein the mode comprises at least one of a capacitive return path mode, and a waveguide communication mode, wherein the modes create localized high-intensity field regions and regions of destructive interference, regions with constructive interference with communication optimized by selecting destination device positions within the vehicle, wherein the mode comprises one of a Electro Quasi-Static (EQS) field mode and an electromagnetic wave (EM) resonant cavity mode for communication based on predefined conditions, wherein the EQS field mode enables low-frequency communication through electric field coupling within the metal chassis, and the resonant cavity mode enables high-frequency communication by exciting electromagnetic waves in the conductive medium, wherein the vehicle chassis acts as a waveguide.
17 . The method of claim 15 , wherein in the EM resonant cavity mode, the method comprises: generating, by the processor, the electromagnetic waves within the conductive boundaries of the vehicle chassis; and forming, by the processor, a standing wave pattern within a cavity defined by vehicle chassis dimensions, wherein a field intensity exhibits sharp drop-off at the conductive boundaries of the vehicle chassis.
18 . The method of claim 15 , wherein the floating reference conductors is positioned closer to an outer surface of the vehicle chassis.
19 . The method of claim 15 , wherein the conductive medium comprises at least one of resistive, capacitive, and inductive.
20 . A non-transitory computer-readable medium comprising machine-readable instructions that are executable by a processor to: generate an Electro-Quasistatic (EQS) signal from a source device; establish a communication channel between the source device and a destination device; adjust the positioning of the signal conductors and the floating reference/ground conductors to select between a wide-range communication mode and a short-range secure communication mode based on the operational requirements of the vehicle; select a mode of communication between the source device and the destination device based on at least one of a distance between the source device and the destination device, a size of the plurality of signal conductors, and a location of the destination device, wherein the modes are selectively activated based on the dimensions of the vehicle chassis to optimize a communication frequency and minimize voltage loss within the vehicle; and tune the operational frequency of the resonant cavity modes based on the size of the conductive boundaries within the vehicle chassis to optimize communication performance.

Description

FIELD OF INVENTION Embodiments of the present disclosure relate to the field of wireless communication system and more particularly relates to a system and method for providing communication between devices of vehicle using an intra-vehicular network. BACKGROUND In traditional wireless communication systems, data transmission predominantly relies on radio frequency (RF) electromagnetic (EM) radiation. RF EM methods have been optimized for efficient data transfer through air, offering significant advantages in free-space applications. However, when RF EM waves interact with mediums densely packed with conductors—such as the chassis of a vehicle, aircraft, or ship—these methods encounter substantial channel losses. Additionally, RF EM waves radiate indiscriminately, making the signals vulnerable to interception, which could pose security risks in sensitive applications. Some prior arts illustrate the potential of EQS communication for human applications, such as EQS-based data transfer for wearable devices, but do not extend these concepts to vehicles, aircraft, or maritime settings where ground-isolated communication is essential. Other prior arts explore quasi-static communication using magnetic fields rather than electric fields. These solutions rely on magnetic quasi-static fields with near-zero electric field variation, distinguishing them from EQS-based systems, which operate primarily with electric fields and negligible magnetic interference. Additional prior arts describe vehicle-to-everything (V2X) communication systems for data transfer between vehicles and surrounding infrastructure, leveraging internet-based or RF EM-based techniques to facilitate inter-vehicle communication. However, these methods focus primarily on inter-vehicle communication and external data collection. They do not address the need for secure, efficient, and low-loss intra-vehicle communication, nor do they employ near-field techniques tailored to confined, conductive environments within vehicles. The need for a secure, low-loss communication channel within confined conductive spaces remains unmet by existing wireless communication technologies, particularly within the automotive, maritime, and aviation industries. Hence, there is a need for an advanced to a communication system for providing communication between physical devices of vehicle using an intra-vehicular network, in order to address the aforementioned issues. SUMMARY This summary is provided to introduce a selection of concepts, in a simple manner which is further described in the detailed description of the disclosure. This summary is neither intended to identify key or essential inventive concepts of the subject matter nor to determine the scope of the disclosure. In accordance with an embodiment of the present disclosure, a communication system for providing communication between one or more physical devices of a vehicle using an intra-vehicular network is disclosed. The communication system includes a conductive medium, and a processor. Further, the conductive medium includes a plurality of signal conductors, and floating reference/ground conductors. Further, the plurality of signal conductors are configured with an Electro-Quasistatic (EQS) field to generate an Electro-Quasistatic (EQS) signal from a source device. Further, the plurality of signal conductors are configured to forward the generated EQS signal to a destination device via the conductive medium using the EQS field. Further, the floating reference/ground conductors are configured outside the conductive medium to receive the forwarded EQS signal from the source device via the EQS field. Further, the floating reference/ground conductors are configured to establish a communication channel between the source device and the destination device. Further, the processor is configured to adjust the positioning of the signal conductors and the floating reference/ground conductors to select between a wide-range communication mode and a short-range secure communication mode based on the operational requirements of the vehicle. Further, the processor is configured to select a mode of communication between the source device and the destination device based on at least one of a distance between the source device and the destination device, a size of the plurality of signal conductors, and a location of the destination device. The modes are selectively activated based on the dimensions of the vehicle chassis to optimize a communication frequency and minimize voltage loss within the vehicle. Further, the processor is configured to tune the operational frequency of the resonant cavity modes based on the size of the conductive boundaries within the vehicle chassis to optimize communication performance. Further, in another aspect of the embodiment of the present disclosure the communication system includes a method for providing communication between one or more physical devices of a vehicle using an intra-vehicular ne