Transportation means control method and electronic device

Patent metadata

Field	Value
Publication number	US-12464329-B2
Application number	US-202118250974-A
Country	US
Kind code	B2
Filing date	Sep 3, 2021
Priority date	Oct 30, 2020
Publication date	Nov 4, 2025
Grant date	Nov 4, 2025

Abstract

An electronic device is located in a transportation means and includes an ECU, a first and a second short-distance wireless communication module, wherein between which a distance is a first distance. When no interference, the second short-distance wireless communication module receives a first message broadcast by the first short-distance wireless communication module. When interference, the second short-distance wireless communication module does not receive the first message, and sends a notification message to the ECU; and the ECU indicates the first short-distance wireless communication module to increase a transmit power until the second short-distance wireless communication module receives the first message. Therefore, the first message can be received only when a distance between a mobile device and the transportation means is less than or equal to the first distance, so as to send a first response message, so that the electronic device controls the transportation means to perform a specific function.

First claim

What is claimed is:

1 . A transportation device, wherein the transportation devices comprises an electronic device, and the electronic device comprises:
a processor; a memory, wherein the memory is coupled to the processor; a first short-distance wireless communication module, wherein the first short-distance wireless communication module is connected to the processor, the first short-distance wireless communication module is fixedly disposed at a first location of the transportation device, and the first short-distance wireless communication module is configured to broadcast a first message at a first transmit power at a first periodicity; a second short-distance wireless communication module, wherein the second short-distance wireless communication module is connected to the processor, the second short-distance wireless communication module is fixedly disposed at a second location of the transportation device, the first location and the second location are different locations of the transportation device, the second short-distance wireless communication module is at a first distance from the first short-distance wireless communication module, the second short-distance wireless communication module is configured to listen for the first message at a second periodicity; and a computer program, wherein the computer program is stored in the memory, and when the computer program is executed by the processor, the electronic device is enabled to perform the following steps: after the second short-distance wireless communication module does not receive the first message within the second periodicity,
sending, by using the second short-distance wireless communication module, a first notification message to the processor;
after receiving, by the processor, the first notification message, controlling, by the processor, the first short-distance wireless communication module to increase a transmit power until the second short-distance wireless communication module receives the first message within the second periodicity;
receiving, by the first short-distance wireless communication module, a first response message of a mobile device; and in response to receiving the first response message, controlling, by the processor, the transportation device to perform a specific function, wherein the second periodicity is greater than or equal to the first periodicity, and the first response message is a response to the first message from the mobile device.

2 . The transportation device of claim 1 , wherein the electronic device further comprises a third short-distance wireless communication module fixedly disposed on the transportation device, the first short-distance wireless communication module is at a second distance from the third short-distance wireless communication module, the second distance is greater than the first distance, and before the receiving, by the first short-distance wireless communication module, the first response message of the mobile device, the electronic device is further enabled to perform the following steps:
after the third short-distance wireless communication module receives the first message within a third periodicity,
sending, by using the third short-distance wireless communication module, a second notification message to the processor; and
after receiving, by the processor, the second notification message, controlling, by the processor, the first short-distance wireless communication module to reduce the transmit power until the third short-distance wireless communication module does not receive the first message within the third periodicity, wherein
the third periodicity is greater than or equal to the first periodicity.

3 . The transportation device of claim 1 , wherein before the first short-distance wireless communication module receives the first response message of the mobile device, the electronic device further performs the following steps:
after the second short-distance wireless communication module receives the first message within the second periodicity,
comparing a signal strength of the received first message with a preset signal strength, wherein the preset signal strength is a signal strength of the first message received by the second short-distance wireless communication module when there is no interference and when the first short-distance wireless communication module transmits at the first transmit power;
sending, by the second short-distance wireless communication module, a third notification message to the processor when the signal strength of the received first message is greater than the preset signal strength; and
after receiving the third notification message, controlling, by the processor, the first short-distance wireless communication module to reduce the transmit power until the signal strength of the received first message is equal to or less than the preset signal strength.

4 . The transportation device of claim 1 , wherein the electronic device further comprises a fourth short-distance wireless communication module, and before the first short-distance wireless communication module broadcasts the first message at the first transmit power based on the first periodicity, the electronic device further performs the following steps:
broadcasting, by using the fourth short-distance wireless communication module, a second message; receiving a pairing request message of the mobile device; and in response to receiving the pairing request message, broadcasting, by using the fourth short-distance wireless communication module, a pairing response message to the mobile device, to complete pairing with the mobile device.

5 . The transportation device of claim 4 , wherein after the electronic device completes the pairing with the mobile device, the electronic device further performs the following steps:
receiving an authentication request message of the mobile device, wherein the authentication request message comprises a digital key, and using the digital key to verify permission of the mobile device to control the transportation device to perform the specific function; and in response to the verifying permission, broadcasting, by using the fourth short-distance wireless communication module, an authentication response message to the mobile device, to complete authentication on the mobile device.

6 . The transportation device of claim 4 , wherein a transmit power of the second message broadcasted by the fourth short-distance wireless communication module is greater than a transmit power of the first message broadcasted by the first short-distance wireless communication module, or the fourth short-distance wireless communication module is the first short-distance wireless communication module.

7 . The transportation device of claim 4 , wherein the first message comprises an identifier of the first short-distance wireless communication module, the second message comprises an identifier of a fourth communication module of the electronic device, the pairing request message comprises verification information of the mobile device and the identifier of the fourth communication module, the pairing response message comprises security code used for pairing with the mobile device and the identifier of the fourth communication module of the electronic device, the first short-distance wireless communication module, the third short-distance wireless communication module, and the fourth communication module establish a connection to the mobile device through any one of wireless fidelity, Wi-Fi, Bluetooth, and ZigBee.

8 . A transportation device control method, wherein the transportation device comprises an electronic device, the electronic device comprises: a processor; a memory coupled to the processor

Assignees

• Huawei Tech Co Ltd

Inventors

• Zhong Feng

Classifications

• H04W8/005

  Discovery of network devices, e.g. terminals · CPC title

• H04W4/80 Primary

  Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication · CPC title

• H04W76/14

  Direct-mode setup · CPC title

• G07C2209/63

  Comprising locating means for detecting the position of the data carrier, i.e. within the vehicle or within a certain distance from the vehicle · CPC title

• H04W52/245

  taking into account received signal strength · CPC title