SMART TIRE-PRESSURE SENSING SYSTEM WITH PROTECTION MECHANISM AND PROTECTION METHOD THEREOF

• US 20120262285A1
• Filed: 04/14/2011
• Published: 10/18/2012
• Est. Priority Date: 04/14/2011
• Status: Abandoned Application

• Current Assignee: Oro-Tek Co., Ltd.
• Original Assignee: Oro-Tek Co., Ltd.
• Inventors: HO, Kuei-Chi, Chen, Hsin-Chieh
• Application Number:
  US13/086,953
• Publication Number:
  US 20120262285A1
• Time in Patent Office: Days
• US Class Current: 340/442
• CPC Class Codes: B60C 23/0455 Transmission control of wireless signals
• CPC Class Codes: B60C 23/0462 Structure of transmission protocol
• CPC Class Codes: B60C 23/0472 to manually allocate ID codes or mounting positions, e.g. by service technicians
• CPC Class Codes: B60C 23/0484 Detecting an ongoing tyre inflation

Abstract

A smart tire-pressure sensing system with a protection mechanism and a protection method thereof are disclosed. The smart tire-pressure sensing system has at least one host and at least one tire-pressure sensor preprogrammed with multiple encoding systems. The tire-pressure sensor is configured to select one of the encoding systems during an installation period according to a code identification signal so as to establish a signal communication with the host, and to be locked from switching among the encoding systems after a signal locking period since the establish a signal communication is established, so as to prevent the installed tire-pressure sensor from being interfered with or getting reset unintentionally, thereby securing the signal communication between the tire-pressure sensor and the host.

Claims

1. A smart tire-pressure sensing system with a protection mechanism, the smart tire-pressure sensing system comprising at least one host and at least one tire-pressure sensor, and the tire-pressure sensor being installed in a tire to be monitored and being preprogrammed with a plurality of encoding systems, so that the tire-pressure sensor is capable of selecting one of the encoding systems during an installation period according to a code identification signal corresponding to the host and thereby establishing a signal communication with the host, and then transmitting a measured value of a tire pressure of the tire to the host, wherein after a signal locking period since the signal communication between the tire-pressure sensor and the host is established, the tire-pressure sensor is locked from switching among the encoding systems.

2. The smart tire-pressure sensing system of claim 1, further comprising a restorer for sending a recovery signal to the tire-pressure sensor.

3. A protection method for a smart tire-pressure sensing system, the smart tire-pressure sensing system comprising at least one host and at least one tire-pressure sensor, the tire-pressure sensor being preprogrammed with a plurality of encoding systems, and the protection method comprising steps of:

a) installing the tire-pressure sensor onto a tire to be monitored;

b) inflating the tire to make a tire pressure thereof greater than a preset threshold, so as to enter the tire-pressure sensor into an installation process;

c) sending a code identification signal corresponding to the host to the tire-pressure sensor during an installation period;

d) making the tire-pressure sensor receive the code identification signal and select one of the encoding systems according to the code identification signal so as to establish the signal communication between the tire-pressure sensor and the host; and

e) if the tire-pressure sensor has never detected the tire pressure of the tire to be monitored as lower than the preset threshold over a signal locking period, entering the tire-pressure sensor into a locking process wherein the tire-pressure sensor is locked from switching among the encoding systems.

4. The protection method of claim 3, wherein the step c) the code identification signal is sent to the tire-pressure sensor by the host.

5. The protection method of claim 4, wherein the host transmits the code identification signal to the tire-pressure sensor through a wireless transmitter.

6. The protection method of claim 3, wherein in the step c) the code identification signal is sent to the tire-pressure sensor by a code identifying tool.

7. The protection method of claim 3, wherein the tire-pressure sensor after entering the installation process and undergoing the installation period stop a function of answering to the code identification signal to switch among the encoding systems.

8. The protection method of claim 3, wherein the signal communication between the tire-pressure sensor and the host is wireless for transmitting the measured value of the tire pressure of the tire to the host.

9. The protection method of claim 3, wherein when the tire-pressure sensor detects that the measured value of the tire pressure of the tire is lower than the present threshold during the signal locking period, the tire-pressure sensor recovers a function of answering to the code identification signal to switch among the encoding systems.

10. The protection method of claim 3, further comprising a recovery process:

wherein a restorer sending a recovery signal to the tire-pressure sensor that has entered the locking process, so to restart and enter the tire-pressure sensor into the installing process.