Bluetooth tire pressure detection system and operating method thereof

Abstract

The present invention provides a Bluetooth tire pressure monitoring system and its operating method. A Bluetooth auxiliary receiver is added to a conventional Bluetooth tire pressure monitoring system at a location separate from the Bluetooth host, and is connected to the Bluetooth host and the Bluetooth tire pressure detector. The Bluetooth tire pressure detector utilizes the characteristic of transmitting detected tire information to the Bluetooth host and the Bluetooth auxiliary receiver, respectively. The Bluetooth auxiliary receiver then transmits the received tire information to the Bluetooth host for multiple verifications. This method ensures the integrity of the Bluetooth host's data and is not easily lost due to factors such as distance, and can be effectively used on large motor vehicles.

Description

Technical Field

[0001] The invention relates to a Bluetooth-connected motor vehicle tire pressure detection system and an operating method thereof. Background Art

[0002] In modern times, many vehicles in China are equipped with tire pressure monitoring systems (TPMS) to enable drivers to monitor the condition of their tires in real time, preventing sudden blowouts or insufficient tire pressure that could affect driving safety. These systems typically consist of tire pressure sensors mounted on the vehicle's rims and a host computer inside the vehicle. Each TPMS reads the tire's air pressure or other preset parameters, such as tire temperature and humidity, over a period of time and transmits the readings to the host computer. If any TPMS detects an abnormal reading, the system generates an alarm to alert the driver, providing a warning and reducing the risk of accidents.

[0003] The connection methods commonly used by manufacturers in tire pressure monitoring systems on the market are cable connections or antenna-based wireless connections. This method increases the cost and weight of the vehicle body. Therefore, some manufacturers have developed tire pressure monitoring systems using Bluetooth connections. This method has relative advantages in terms of operation and assembly difficulty. It is not only low-cost and has minimal impact on the weight of the vehicle body, but also greatly improves the convenience of connecting each tire. Unlike previous technologies, there is no need to go back to the factory to burn the tire pressure detector of each tire. Therefore, compared with previous methods, its applicability has been improved.

[0004] While this method offers improved applicability, its accuracy and efficiency are sometimes questionable due to the limited Bluetooth connection distance and occasional information loss during Bluetooth transmission. This is particularly common in large, multi-wheeled vehicles, or those where the tires are a long distance from the Bluetooth host. Consequently, Bluetooth-connected tire pressure monitoring systems are rarely used in large vehicles.

[0005] Therefore, if the above situation can be optimized and improved, the accuracy of the Bluetooth-connected tire pressure monitoring system can be effectively improved, and the applicability of the Bluetooth-connected tire pressure monitoring system can be broadened. Summary of the Invention

[0006] The primary technical problem addressed by the present invention is to overcome the aforementioned shortcomings of the prior art by providing a Bluetooth tire pressure monitoring system and operating method thereof. This system adds a Bluetooth auxiliary receiver to a conventional Bluetooth tire pressure monitoring system, located separately from the Bluetooth host. The receiver is connected to the Bluetooth host and the Bluetooth tire pressure monitor. The Bluetooth tire pressure monitor utilizes the characteristic of transmitting detected tire information to both the Bluetooth host and the Bluetooth auxiliary receiver. The Bluetooth auxiliary receiver then actively or passively transmits the received tire information to the Bluetooth host. This multiple verification method ensures the integrity of the Bluetooth host's data and reduces the risk of data loss.

[0007] The technical solution adopted by the present invention to solve its technical problem is:

[0008] A Bluetooth tire pressure monitoring system includes a Bluetooth tire pressure monitor, a Bluetooth host, and a Bluetooth auxiliary receiver. The Bluetooth tire pressure monitor includes a signal transmission module and a sensing module. The sensing module transmits sensed tire information to the signal transmission module. The Bluetooth tire pressure monitor establishes Bluetooth pairing with one or more of the Bluetooth host and the Bluetooth auxiliary receiver, and transmits the tire information to one or more of the Bluetooth host and the Bluetooth auxiliary receiver via the signal transmission module. The Bluetooth host also includes a data transmission and reception module and a control module. The data transmission and reception module is responsible for collecting the tire information transmitted by the Bluetooth tire pressure monitor.

[0009] In addition, the Bluetooth auxiliary receiver is paired with the Bluetooth host. The Bluetooth auxiliary receiver includes a main control module, which is responsible for collecting tire information sent by the Bluetooth tire pressure detector and further includes the function of transmitting the tire information to the data transmission and receiving module.

[0010] In order to solve the problem, the present invention further provides an operating method of a Bluetooth tire pressure monitoring system, which includes the following steps: a transmission step 1, a transmission step 2, an analysis and backup step, a calling step, a forwarding step, and a confirmation step.

[0011] The first transmission step refers to the Bluetooth auxiliary receiver entering the device (Peripheral) mode in the BLE (Bluetooth Low Energy) standard protocol, pairing with the Bluetooth host, and then pairing and connecting with the Bluetooth tire pressure monitor.

[0012] Transmission step 2 refers to the action of the Bluetooth auxiliary receiver entering the host mode of the BLE (Bluetooth Low Energy) standard protocol after transmission step 1 is completed, and the Bluetooth host and Bluetooth auxiliary receiver synchronously receive the tire information transmitted by the Bluetooth tire pressure monitor.

[0013] The analysis and backup step means that after completing the transmission step 2, the Bluetooth auxiliary receiver stores and backs up the tire information transmitted by the Bluetooth tire pressure monitor, and the Bluetooth host will analyze whether the Bluetooth tire pressure monitor has transmitted the tire information completely. If it is complete, it will enter the confirmation step; if there is any missing information, it will enter the call step.

[0014] The calling step refers to the action of instructing the Bluetooth auxiliary receiver to transfer the backed-up tire information via the Bluetooth connection if the Bluetooth host finds that the tire information obtained is incomplete during the analysis and backup step.

[0015] The transfer step refers to the action of the Bluetooth auxiliary receiver receiving the command after the calling step is completed, calling the backed-up tire information and transferring it to the Bluetooth host via the Bluetooth connection.

[0016] Finally, the confirmation step refers to if the Bluetooth host confirms the tire information received in the analysis and backup step is complete or the backed-up tire information has been transferred to the Bluetooth host in the transfer step, the Bluetooth host will then confirm the tire information and perform subsequent application actions. After completing the confirmation step, the Bluetooth tire pressure monitoring system will wait for the next transmission step one to start.

[0017] In order to solve the problem, the present invention further provides an operating method of a Bluetooth tire pressure detection system, which includes the following steps: transmission step one, transmission step two, transmission step three, analysis step and confirmation step, wherein transmission step one refers to the Bluetooth auxiliary receiver entering the device mode in the BLE standard protocol and performing Bluetooth pairing and connection with the Bluetooth host.

[0018] Transmission step 2 refers to the action of the Bluetooth auxiliary receiver entering the host mode of the BLE standard protocol after transmission step 1 is completed, the Bluetooth host and the Bluetooth auxiliary receiver synchronize the Bluetooth connection to the Bluetooth tire pressure monitor, and obtain tire information from the Bluetooth tire pressure monitor.

[0019] The third transmission step refers to the action of the Bluetooth auxiliary receiver transmitting the tire information received from the Bluetooth tire pressure monitor to the Bluetooth host via the Bluetooth connection.

[0020] The next analysis step means that after completing the transmission step 3, the Bluetooth host analyzes all received tire information and confirms whether there is any abnormal movement.

[0021] The last step is the confirmation step, which refers to the Bluetooth host reconfirming and subsequently using the tire information transmitted in the transmission step three. After completing the confirmation step, the Bluetooth tire pressure monitoring system will wait for the next transmission step one to be started.

[0022] The beneficial effect of the present invention is that a Bluetooth auxiliary receiver is additionally added to a general Bluetooth tire pressure monitoring system at a location different from the Bluetooth host, and is connected to the Bluetooth host and the Bluetooth tire pressure detector. The characteristic of the Bluetooth tire pressure detector in transmitting the detected tire information is utilized to transmit it to the Bluetooth host and the Bluetooth auxiliary receiver respectively. The Bluetooth auxiliary receiver then actively or passively transmits the received tire information to the Bluetooth host. This multiple verification method can ensure that the data of the Bluetooth host is complete and not easily lost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and examples.

[0024] Figure 1 This is a system architecture diagram of the present invention.

[0025] Figure 2 This is a detailed system architecture diagram of the first operating method of the present invention.

[0026] Figure 3 This is a flow chart of the first operating method of the present invention.

[0027] Figure 4 This is a detailed system architecture diagram of the second operating method of the present invention.

[0028] Figure 5 This is a flow chart of the second operating method of the present invention.

[0029] Figure 6 Schematic diagram of the positioning system of the present invention.

[0030] Description of the numbers in the figure:

[0031] Bluetooth tire pressure monitor: 1

[0032] Message sending module: 11

[0033] Sensing module: 12

[0034] Bluetooth host: 2

[0035] Data transmission and reception module: 21

[0036] Control modules: 22

[0037] Bluetooth auxiliary receiver: 3

[0038] Main control module: 31

[0039] Transfer step 1: S10

[0040] Transmission step 2: S11

[0041] Analyze backup steps: S12

[0042] Calling step: S13

[0043] Transfer step: S14

[0044] Confirmation step: S15

[0045] Transfer step 1: S20

[0046] Transmission step 2: S21

[0047] Transmission step three: S22

[0048] Analysis step: S23

[0049] Confirmation step: S24 DETAILED DESCRIPTION

[0050] The present invention is described in detail below using embodiments in conjunction with the accompanying drawings. The figures used herein are for illustration and auxiliary description purposes only and may not necessarily reflect the actual proportions and precise configurations of the present invention after implementation. Therefore, the proportions and configurations of the figures should not be used to limit the scope of the present invention in actual implementation. This is to be noted.

[0051] like Figures 1 to 5 As shown, the present invention is a Bluetooth tire pressure monitoring system, which includes a Bluetooth tire pressure detector 1, a Bluetooth host 2, and a Bluetooth auxiliary receiver 3. The Bluetooth tire pressure detector 1 includes a message sending module 11 and a sensing module 12. The sensing module 12 transmits the sensed tire information to the message sending module 11. The Bluetooth tire pressure detector 1 performs Bluetooth pairing with any one or more of the Bluetooth host 2 and the Bluetooth auxiliary receiver 3, and transmits the tire information to any one or more of the Bluetooth host 2 and the Bluetooth auxiliary receiver 3 through the message sending module 11.

[0052] Moreover, if Figures 1 to 5 As shown, the Bluetooth host 2 includes a data transmission and reception module 21 and a control module 22 . The data transmission and reception module 21 is responsible for collecting tire information sent by the Bluetooth tire pressure detector 1 .

[0053] In addition, if Figures 1 to 5 As shown, the Bluetooth auxiliary receiver 3 is Bluetooth-matched with the Bluetooth host 2 . The Bluetooth auxiliary receiver 3 includes a main control module 31 . The main control module 31 is responsible for collecting tire information sent by the Bluetooth tire pressure detector 1 . The main control module 31 further includes the function of transmitting the tire information to the data transmission and receiving module 21 .

[0054] In actual use, such as Figures 1 to 5As shown, the user needs to install the Bluetooth tire pressure monitor 1 on the wheel rim and pair it with the Bluetooth host 2 installed in the vehicle. Then, the user needs to install the Bluetooth auxiliary receiver 3 on the vehicle and pair it with the Bluetooth host 2 to use the accurate and convenient Bluetooth tire pressure monitoring system.

[0055] Furthermore, the Bluetooth host 2 includes the function of running the host identity in the BLE (Bluetooth Low Energy) standard protocol, or running both the host identity and the peripheral identity at the same time.

[0056] Furthermore, the Bluetooth auxiliary receiver 3 includes the function of simultaneously running both the host (Host) and the device (Peripheral) identities in the BLE standard protocol.

[0057] Furthermore, the Bluetooth tire pressure monitor 1 includes the function of operating a peripheral device in the BLE standard protocol, or operating both the host and peripheral devices simultaneously, and has the function of transmitting tire information via broadcast packets.

[0058] Furthermore, the control module 22 includes a function of confirming the integrity of the tire information from the data transmission and reception module 21 and whether it exceeds a safety value.

[0059] Furthermore, the Bluetooth host 2 includes a display module. When the control module 22 confirms that the tire information is complete, the control module 22 transmits the tire information to the display module. The display module is used to connect to a display to display the tire information.

[0060] The embodiments of the present invention are described in further detail below. The present invention provides two operating methods, wherein the first method is as follows: Figures 1 to 3 As shown, the following steps are included: a transmission step 1 S10, a transmission step 2 S11, an analysis and backup step S12, a call step S13, a transfer step S14 and a confirmation step S15.

[0061] The transmission step 1 S10 refers to the Bluetooth auxiliary receiver 3 entering the device (Peripheral) mode in the BLE (Bluetooth Low Energy) standard protocol, pairing with the Bluetooth host 2 and then performing Bluetooth pairing and connection with the Bluetooth tire pressure monitor 1.

[0062] The second transmission step S11 refers to the action in which the Bluetooth auxiliary receiver 3 enters the host mode of the BLE (Bluetooth Low Energy) standard protocol after the completion of the first transmission step S10, and the Bluetooth host 2 and the Bluetooth auxiliary receiver 3 synchronously receive the tire information transmitted by the Bluetooth tire pressure monitor 1.

[0063] The analysis and backup step S12 means that after completing the transmission step 2 S11, the Bluetooth auxiliary receiver 3 stores and backs up the tire information transmitted by the Bluetooth tire pressure monitor 1, and the Bluetooth host 2 will analyze whether the Bluetooth tire pressure monitor 1 has transmitted the tire information completely. If it is complete, it will enter the confirmation step S15. If there is any missing, it will enter the call step S13.

[0064] The calling step S13 indicates that if the Bluetooth host 2 finds that the tire information obtained in the analyzing and backing up step S12 is incomplete, it will instruct the Bluetooth auxiliary receiver 3 to transfer the backed up tire information via the Bluetooth connection.

[0065] Then the transfer step S14 means that after the call step S13 is completed, the Bluetooth auxiliary receiver 3 receives the command and calls the

[0066] The backup tire information is transferred to the Bluetooth host 2 via Bluetooth connection.

[0067] Finally, the confirmation step S15 indicates whether the Bluetooth host 2 has received the tire information in the analysis and backup step S12 completely or

[0068] After the tire information backed up in step S14 is transferred to the Bluetooth host 2, the Bluetooth host 2 confirms the tire information.

[0069] After completing the confirmation step S15, the Bluetooth tire pressure monitoring system will wait for the next transmission step S10 to start.

[0070] like Figure 4 and Figure 5 As shown, Figure 4 The solid arrow in the middle indicates the direction of tire information transmission, and the dotted line indicates the execution path of the Bluetooth tire pressure monitoring system after the control module 22 determines whether the tire information is complete. The second method provided by the present invention includes the following steps: a transmission step 1 S20, a transmission step 2 S21, a transmission step 3 S22, an analysis step S23, and a confirmation step S24. Transmission step 1 S20 refers to the Bluetooth auxiliary receiver 3 entering the device mode of the BLE standard protocol and performing Bluetooth pairing and connection with the Bluetooth host 2.

[0071] The second transmission step S21 refers to the action of the Bluetooth auxiliary receiver 3 entering the host mode of the BLE standard protocol after the completion of the first transmission step S20, the Bluetooth host 2 and the Bluetooth auxiliary receiver 3 synchronize the Bluetooth connection with the Bluetooth tire pressure monitor 1, and obtain tire information from the Bluetooth tire pressure monitor 1.

[0072] The transmission step three S22 refers to the action of the Bluetooth auxiliary receiver 3 transmitting the tire information received from the Bluetooth tire pressure monitor 1 to the Bluetooth host 2 via the Bluetooth connection.

[0073] Next, the analysis step S23 refers to the Bluetooth host 2 analyzing all received tire information after completing the transmission step S22 and confirming whether there is any abnormal movement.

[0074] Finally, the confirmation step S24 is performed. The confirmation step S24 refers to the Bluetooth host 2 performing reconfirmation and subsequent use according to the tire information transmitted in the transmission step S22. After completing the confirmation step S24, the Bluetooth tire pressure monitoring system will wait for the next transmission step S20 to be started.

[0075] In addition, the Bluetooth tire pressure monitoring system of the present invention further includes a positioning function. The main control module 31 of the Bluetooth auxiliary receiver 3 can determine the location of the Bluetooth tire pressure monitoring device 1 by locating any one or more of the distance, angle, and signal strength between itself and the Bluetooth tire pressure monitoring device 1. Through user operation, it helps the control module 22 of the Bluetooth host 2 understand the wheel position where the Bluetooth tire pressure monitoring device 1 is located for information detection. This method allows the Bluetooth host 2 to easily locate the wheel position and serial number without the need for factory burning as in previous technologies, greatly improving user convenience and the applicability of the Bluetooth tire pressure monitoring system.

[0076] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A method for operating a Bluetooth tire pressure monitoring system, characterized in that: The following steps are involved: Transmission step 1: The Bluetooth auxiliary receiver enters device mode, pairs with the Bluetooth host, and then pairs with the Bluetooth tire pressure monitor; Transmission step 2: After the transmission step 1 is completed, the Bluetooth auxiliary receiver enters the host mode, and the Bluetooth host and the Bluetooth auxiliary receiver synchronously receive the tire information transmitted by the Bluetooth tire pressure detector; In the analysis and backup step, after completing the second transmission step, the Bluetooth auxiliary receiver stores and backs up the tire information transmitted by the Bluetooth tire pressure monitor, and the Bluetooth host analyzes whether the tire information transmitted by the Bluetooth tire pressure monitor is complete. If the information is complete, the confirmation step is entered; if the information is missing, the call step is entered; In the calling step, if the Bluetooth host finds that the backed-up tire information is incomplete during the analyzing and backing-up step, it will instruct the Bluetooth auxiliary receiver to forward the backed-up tire information via the Bluetooth connection; a forwarding step, after the calling step is completed, the Bluetooth auxiliary receiver receives the command and calls the backed-up tire information to forward it to the Bluetooth host via the Bluetooth connection; and the confirmation step, if the tire information received by the Bluetooth host in the analysis and backup step is complete or the backup tire information has been transferred to the Bluetooth host in the transfer step, the Bluetooth host then confirms the tire information; After completing the confirmation step, the Bluetooth tire pressure monitoring system will wait for the next transmission step 1.

2. A Bluetooth tire pressure monitoring system, characterized in that: The operating method of the Bluetooth tire pressure monitoring system according to claim 1 is used, wherein the Bluetooth tire pressure monitoring system includes a Bluetooth tire pressure detector, a Bluetooth host, and a Bluetooth auxiliary receiver, wherein the Bluetooth tire pressure detector includes a message sending module and a sensing module, and the sensing module transmits the sensed tire information to the message sending module. The Bluetooth tire pressure detector performs Bluetooth pairing with the Bluetooth host and the Bluetooth auxiliary receiver, and transmits the tire information to the Bluetooth host and the Bluetooth auxiliary receiver through the message sending module; The Bluetooth host includes a data transmission and reception module and a control module. The data transmission and reception module is responsible for collecting tire information sent by the Bluetooth tire pressure detector; The Bluetooth auxiliary receiver is Bluetooth-matched with the Bluetooth host, and includes a main control module. The main control module is responsible for collecting tire information sent by the Bluetooth tire pressure detector, and the main control module further includes a function of transmitting tire information to the data transmission and receiving module.

3. The Bluetooth tire pressure monitoring system according to claim 2, characterized in that: The control module includes a function of confirming the integrity of the tire information of the data transmission and reception module and whether it exceeds the safety value.

4. The Bluetooth tire pressure monitoring system according to claim 2, characterized in that: The Bluetooth host further includes a display module, and the display module is used to connect to a display to display tire information.

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