An integrated tire sensor

Abstract

The application discloses an integrated tire sensor arranged in a vehicle tire and used for collecting integrated tire sensor data including tire temperature and pressure data, and comprises a master control chip, a tire temperature and pressure sensor, power supply electronics, a near-field activation module and a near-field communication module. The near-field activation module comprises a low-frequency antenna and a driving chip, the low-frequency antenna is connected with the driving chip, the driving chip is connected with the master control chip, and the near-field activation module sends an activation electric signal to the master control chip through the low-frequency antenna after receiving an external specific signal, so that the integrated tire sensor is activated to enter a working state, and re-enters a dormant state after a set time. The integrated tire sensor provided by the application is activated by an external specific signal when needed, and is kept in a dormant state by default when not needed, so that the working time of the integrated tire sensor is reduced, and the energy-saving effect is achieved.

Description

Technical Field

[0001] This application provides an integrated tire sensor, relating to the field of tire temperature and pressure monitoring technology. Background Technology

[0002] Existing direct tire temperature and pressure sensors are usually installed inside the tire and are in operation throughout their entire life cycle, which increases the energy consumption and potential for failure of the tire temperature and pressure sensors. Utility Model Content

[0003] The technical problem this application aims to solve is how to reduce the energy consumption and operating frequency of tire temperature and pressure sensors.

[0004] To address the aforementioned technical problems, this application provides an integrated tire sensor, installed inside a vehicle tire, for collecting tire temperature and pressure data. The integrated tire sensor includes a main control chip, a tire temperature and pressure sensor, power supply electronics, a near-field activation module, and a near-field communication module. The power supply electronics are connected to the main control chip to supply power to the integrated tire sensor. The main control chip is connected to the tire temperature and pressure sensor to collect tire temperature and pressure data. The near-field activation module includes a low-frequency antenna and a driver chip. The low-frequency antenna is connected to the driver chip, which is connected to the main control chip. After receiving a specific external signal through the low-frequency antenna, the driver chip sends an activation electrical signal to the main control chip, thereby activating the integrated tire sensor and putting it into working condition. The near-field communication module is connected to the main control chip for transmitting integrated tire sensor data externally.

[0005] Preferably, the integrated tire sensor further includes a rotation direction indicator sensor, which outputs a first signal and a second signal that are different for forward rotation and reverse rotation, respectively.

[0006] Preferably, the rotation direction indicator sensor is an electronic gyroscope or an inertial measurement sensor.

[0007] Preferably, the vehicle is a bus or a truck.

[0008] Preferably, the vehicle includes and is equipped with tires.

[0009] Preferably, the low-frequency antenna of the near-field activation module is a 125KHz antenna.

[0010] Preferably, the near-field communication module is a 433MHz module.

[0011] The integrated tire sensor provided in this application uses a near-field activation module, which enters the working state by receiving a specific external signal and re-enters sleep mode after a set time. It is activated by a specific external signal when needed and remains in sleep mode when not needed, thereby reducing the working time of the integrated tire sensor and achieving energy saving. Attached Figure Description

[0012] Figure 1 A schematic diagram of the integrated tire sensor structure provided in this application;

[0013] Figure 2 This is the circuit schematic of the near-field activation module;

[0014] Figure 3 Schematic diagram of the power supply circuit for the electronic power supply;

[0015] Figure 4 This is the circuit schematic of the near-field communication module;

[0016] Explanation of reference numerals in the attached figures:

[0017] Main control chip 111, rotation direction indicator sensor 112, tire temperature and tire pressure sensor 113, power supply electronics 114, near field activation module 115, near field communication module 116. Detailed Implementation

[0018] To make this application more apparent and understandable, various exemplary embodiments will be described below. These examples are non-limiting and should be understood as illustrating aspects of the broader application of the apparatus, system, and method. These embodiments can be varied and substituted with equivalents without departing from the spirit and scope of this application. Furthermore, various variations can be made to adapt to specific circumstances, materials, material compositions, processing types, processing actions, or steps to suit the purpose, content, or scope of this application. All such variations will be within the protection scope of this application.

[0019] Any materials, dimensions, or quantities described in the overview or detailed description are merely examples and are not intended to limit the subject matter of this application. Furthermore, the various implementations of the embodiments described herein are complementary rather than purely alternating, unless otherwise stated. In other words, implementations from one embodiment can be freely combined with implementations from other embodiments, as will readily be apparent to those skilled in the art, unless these implementations are stated to be used only as substitutions.

[0020] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] Example

[0023] The integrated tire sensor provided in this embodiment is an energy-saving sensor. It enters the working state after external activation, collects sensing data for a set time, and then enters sleep mode, awaiting the next activation. See also... Figure 1 The integrated tire sensor includes a main control chip 111, a tire temperature and pressure sensor 113, a power supply electronics 114, a near-field activation module 115, and a near-field communication module 116.

[0024] The system includes a power supply module 114 connected to the main control chip 111 to power the integrated tire sensor; the main control chip 111 is connected to the rotation direction indicator sensor 112 and the tire temperature and pressure sensor 113 to collect the rotation direction indicator sensor signal and the tire temperature and pressure data to form the integrated tire sensor data; the near-field activation module 115 includes a low-frequency antenna and a driver chip, the low-frequency antenna is connected to the driver chip, and the driver chip is connected to the main control chip 111. After receiving a specific external signal through the low-frequency antenna, the near-field activation module 115 sends an activation electrical signal to the main control chip 111, thereby activating the integrated tire sensor to enter the working state; and the near-field communication module 116 is connected to the main control chip 111 to transmit the integrated tire sensor data to the outside.

[0025] The integrated tire sensor provided in this application uses a near-field activation module, which enters the working state by receiving a specific external signal and re-enters sleep mode after a set time. It is activated by a specific external signal when needed and remains in sleep mode when not needed, thereby reducing the working time of the integrated tire sensor and achieving energy saving.

[0026] For example, the low-frequency antenna of the near-field activation module is a 125KHz antenna; the near-field communication module is a conventional 433MHz module.

[0027] It is understood that the tire temperature and tire pressure sensor can be an integrated tire temperature sensor + tire pressure sensor or a separate tire temperature sensor and a separate tire pressure sensor. For example, the tire pressure sensor can use a pressure sensor chip of model FXTH8715116T1 or a pressure sensor chip of model SIC700A, and the tire temperature sensor can use a temperature-sensitive resistor. The tire temperature and tire pressure sensors involved in the embodiments of this application are all direct use of existing products, and the embodiments of this application do not involve improvements to the tire temperature and tire pressure sensors.

[0028] In a further embodiment, the integrated tire sensor provided in this application also includes a rotation direction indicator sensor 112. The rotation direction indicator sensor 112 employs an electronic gyroscope or an inertial measurement sensor, such as an electronic gyroscope of model SSZ030CG or an inertial measurement sensor of model M-G370PDT0. The rotation direction indicator sensor 112 can output different first and second signals for different rotation directions, thus the tire rotation direction can be determined by the first or second signal. Furthermore, in the scenario of parallel tire mounting, initially all tires are installed with the integrated tire sensor in the same orientation. When the tires are mounted side-by-side, the outer tire and the inner tire are mounted in opposite directions. During driving, the rotation direction indicator sensor in the outer tire and the rotation direction indicator sensor in the inner tire output exactly different first and second signals. Therefore, by adding a rotation direction indicator sensor to the integrated tire sensor, the specific tire can be determined based on the first and second signals for parallel tire mounting.

[0029] For example, the main control chip uses a conventional microprocessor. See the circuit schematic of the near-field activation module. Figure 2 See the schematic diagram of the power supply electronic circuit. Figure 3 The near-field communication module is a standard 433MHz module; see the circuit schematic for details. Figure 4 .

[0030] Compared with existing tire temperature and pressure sensors, the integrated tire sensor provided in this application embodiment adds a near-field activation module and a rotation direction indicator sensor, thereby realizing an energy-saving mode of activating to enter the working state and sleeping for a set working time, and also realizing the function of rotation direction sensing.

[0031] The above description is merely a preferred embodiment of this application and does not constitute any limitation on this application in any form or substance. It should be noted that those skilled in the art can make several improvements and additions without departing from this application, and these improvements and additions should also be considered within the scope of protection of this application. Any modifications, alterations, and equivalent variations made by those skilled in the art based on the disclosed technical content without departing from the content and scope of this application are equivalent embodiments of this application. Furthermore, any equivalent changes, alterations, and variations made to the above embodiments based on the essential technology of this application still fall within the scope of the technical solution of this application.

Claims

1. An integrated tire sensor, disposed within a vehicle tire, for collecting integrated tire sensor data including tire temperature and tire pressure data, characterized in that, It includes a main control chip, tire temperature and pressure sensors, power supply electronics, a near-field activation module, and a near-field communication module; the power supply electronics connect to the main control chip to power the integrated tire sensors; the main control chip connects to the tire temperature and pressure sensors to collect tire temperature and pressure data; The near-field activation module includes a low-frequency antenna and a driver chip. The low-frequency antenna is connected to the driver chip, and the driver chip is connected to the main control chip. After receiving a specific external signal through the low-frequency antenna, the near-field activation module sends an activation electrical signal to the main control chip, thereby activating the integrated tire sensor to enter the working state. The near-field communication module connects to the main control chip and is used to transmit integrated tire sensor data to external systems.

2. The integrated tire sensor according to claim 1, characterized in that, The integrated tire sensor also includes a rotation direction indicator sensor, which outputs a first signal and a second signal that are different for forward rotation and reverse rotation, respectively.

3. An integrated tire sensor according to claim 2, characterized in that, The rotation direction indicator sensor is set as an electronic gyroscope or an inertial measurement sensor.

4. An integrated tire sensor according to claim 2, characterized in that, The vehicle is designated as a bus or a truck.

5. An integrated tire sensor according to claim 2, characterized in that, The vehicle includes and is equipped with tires.

6. An integrated tire sensor according to claim 1, characterized in that, The low-frequency antenna of the near-field activation module is set to a 125KHz antenna.

7. An integrated tire sensor according to claim 1, characterized in that, The near-field communication module is configured as a 433MHz module.

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