CN219856695U - Tire pressure sensor, tire pressure detection triggering device and tire pressure detection system - Google Patents

Abstract

The embodiment of the disclosure provides a tire pressure sensor, a tire pressure detection triggering device and a tire pressure detection system, wherein the tire pressure sensor comprises a tire pressure sensing unit, a first Bluetooth antenna, a first Bluetooth transceiver unit connected with the first Bluetooth antenna, and a first processing unit connected with the first Bluetooth transceiver unit and the tire pressure sensing unit; the tire pressure detection triggering device comprises an operation input unit, a second Bluetooth antenna, a second Bluetooth receiving and transmitting unit connected with the second Bluetooth antenna, and a second processing unit connected with the second Bluetooth receiving and transmitting unit and the operation input unit; the Bluetooth communication between the tire pressure sensor and the tire pressure detection triggering device can transmit the tire pressure detection wake-up Bluetooth signal generated by the operation of the tire pressure detection triggering device received by the operation input unit to the tire pressure sensor, so that the tire pressure sensor transmits the tire pressure state signal in response. Sensor triggering and information sending are completed through an independent Bluetooth module, so that a related circuit triggered by low frequency (such as 125 kHz) is omitted, and design difficulty and cost are reduced.

Description

Tire pressure sensor, tire pressure detection triggering device and tire pressure detection system

Technical Field

The present disclosure relates to the field of sensor technologies, and in particular, to a tire pressure sensor, a tire pressure detection trigger device, and a tire pressure detection system.

Background

Currently, tire pressure sensors trigger wake-up by a low frequency signal of 125kHz to perform tire pressure information transmission. Therefore, the hardware of the tire pressure sensor product needs a detection circuit with a 125kHz signal, and the triggering device also needs a transmitting antenna coil with a 125kHz signal. The tire pressure sensor product itself transmits data not through a 125kHz signal but through other types of high-frequency wireless circuits, which results in that both the tire pressure sensor and the triggering device need to be equipped with at least two sets of wireless circuits with different frequency bands, resulting in high design cost.

Disclosure of Invention

In view of the above-described drawbacks of the related art, an object of the present disclosure is to provide a tire pressure sensor, a tire pressure detection triggering device, and a tire pressure detection system, which solve the problems in the related art.

A first aspect of the present disclosure provides a tire pressure sensor, comprising: the tire pressure sensing unit is used for collecting tire pressure state information: the first Bluetooth antenna is communicated with the outside based on a Bluetooth preset working frequency band and is used for receiving a tire pressure detection wake-up Bluetooth signal and transmitting a tire pressure state Bluetooth signal; the first Bluetooth receiving and transmitting unit is connected with the first Bluetooth antenna and is used for modulating and obtaining the tire pressure state Bluetooth signal based on the tire pressure state information and demodulating the tire pressure detection wake-up Bluetooth signal; and the first processing unit is connected with the first Bluetooth receiving and transmitting unit and the tire pressure sensing unit and is used for responding to the demodulated tire pressure detection wake-up Bluetooth signal, reading the tire pressure state information from the tire pressure sensing unit and transmitting the tire pressure state information to the first Bluetooth receiving and transmitting unit so as to transmit the corresponding tire pressure state Bluetooth signal through the first Bluetooth receiving and transmitting unit and the first Bluetooth antenna.

In an embodiment of the first aspect, the tire pressure sensing unit includes: an air pressure sensor, a temperature sensor, and a memory storing the tire pressure sensor ID; the tire pressure state information includes: tire pressure information, temperature information, and tire pressure sensor ID.

In an embodiment of the first aspect, the tire pressure sensor includes: the battery is connected with the first processing unit and the tire pressure sensing unit; the tire pressure state information includes voltage information of the battery.

In an embodiment of the first aspect, the data structure of the tire pressure detection wake-up bluetooth signal sequentially includes: the method comprises the steps of storing a preamble data segment of a preamble to be matched, storing a data segment of data which can be received under the condition of the matching of the preamble, and storing a check data segment for checking the data.

In an embodiment of the first aspect, the first processing unit and the tire pressure sensing unit are integrated in the same processing chip;

or, the first processing unit, the tire pressure sensing unit and the first bluetooth transceiver unit are integrated in the same processing chip.

A second aspect of the present disclosure provides a tire pressure detection triggering device, including: an operation input unit for receiving an operation to generate an input signal; the second Bluetooth antenna is communicated with the outside based on a Bluetooth preset working frequency band and is used for sending a tire pressure detection wake-up Bluetooth signal and receiving a response tire pressure state Bluetooth signal; the second Bluetooth receiving and transmitting unit is connected with the second Bluetooth antenna and is used for modulating the tire pressure detection wake-up Bluetooth signal based on a Bluetooth preset working frequency band and demodulating the tire pressure state Bluetooth signal to obtain tire pressure state information; and the second processing unit is connected with the second Bluetooth receiving and transmitting unit and the operation triggering unit and is used for responding to the input signal and transmitting a tire pressure detection awakening Bluetooth signal through the second Bluetooth receiving and transmitting unit and the antenna.

In an embodiment of the second aspect, the tire pressure detection triggering device further includes: and the display unit is connected with the second processing unit and is used for displaying the tire pressure state information.

In an embodiment of the second aspect, the data structure of the tire pressure detection wake-up bluetooth signal sequentially includes: the method comprises the steps of storing a preamble data segment of a preamble to be matched, storing a data segment of data which can be received under the condition of the matching of the preamble, and storing a check data segment for checking the data.

In an embodiment of the second aspect, the operation input unit includes: a mechanical switch or a virtual switch.

In an embodiment of the third aspect, there is provided in an embodiment of the present disclosure a tire pressure detecting system including: a tire pressure detection trigger device, and a tire pressure sensor in bluetooth communication with the tire pressure detection trigger device; the tire pressure detection triggering device responds to user operation to send out a tire pressure detection wake-up Bluetooth signal; the tire pressure sensor receives the tire pressure detection wake-up Bluetooth signal through Bluetooth communication; and, in response to the wake-up bluetooth signal, transmitting a tire pressure state bluetooth signal carrying tire pressure loading information to be received by the tire pressure detection triggering device.

As described above, the tire pressure sensor, the tire pressure detection triggering device and the tire pressure detection system are provided in the embodiments of the present disclosure, where the tire pressure sensor includes a tire pressure sensing unit, a first bluetooth antenna, a first bluetooth transceiver unit connected to the first bluetooth antenna, and a first processing unit connected to the first bluetooth transceiver unit and the tire pressure sensing unit; the tire pressure detection triggering device comprises an operation input unit, a second Bluetooth antenna, a second Bluetooth receiving and transmitting unit connected with the second Bluetooth antenna, and a second processing unit connected with the second Bluetooth receiving and transmitting unit and the operation input unit; the Bluetooth communication between the tire pressure sensor and the tire pressure detection triggering device can transmit the tire pressure detection wake-up Bluetooth signal generated by the operation of the tire pressure detection triggering device received by the operation input unit to the tire pressure sensor, so that the tire pressure sensor transmits the tire pressure state signal in response. Sensor triggering and information sending are completed through an independent Bluetooth module, so that a related circuit triggered by low frequency (such as 125 kHz) is omitted, and design difficulty and cost are reduced.

Drawings

Fig. 1 shows a schematic circuit configuration of a tire pressure sensor according to an embodiment of the present disclosure.

Fig. 2 shows a schematic circuit structure of a tire pressure detecting and triggering device according to an embodiment of the disclosure.

Fig. 3A shows a schematic diagram of a communication structure of the tire pressure detecting system in an embodiment of the present disclosure.

Fig. 3B shows a schematic diagram of a communication structure of a tire pressure detecting system according to still another embodiment of the present disclosure.

Fig. 4 shows a schematic diagram of OOK modulation in an embodiment of the disclosure.

Fig. 5 shows a schematic diagram of a data structure of a tire pressure detection wake-up bluetooth signal in an embodiment of the present disclosure.

Detailed Description

Other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the following detailed description of the embodiments of the disclosure given by way of specific examples. The disclosure may be embodied or applied in other specific forms and details, and various modifications and alterations may be made to the details of the disclosure in various respects, all without departing from the spirit of the disclosure. It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

The embodiments of the present disclosure will be described in detail below with reference to the attached drawings so that those skilled in the art to which the present disclosure pertains can easily implement the same. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein.

In the description of the present disclosure, references to the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or a group of embodiments or examples. Furthermore, various embodiments or examples, as well as features of various embodiments or examples, presented in this disclosure may be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the representations of the present disclosure, "a set" means two or more, unless specifically defined otherwise.

For the purpose of clarity of the present disclosure, components that are not related to the description are omitted, and the same or similar components are given the same reference numerals throughout the specification.

Throughout the specification, when a device is said to be "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" with other elements interposed therebetween. In addition, when a certain component is said to be "included" in a certain device, unless otherwise stated, other components are not excluded, but it means that other components may be included.

Although the terms first, second, etc. may be used herein to connote various elements in some examples, the elements should not be limited by the terms. These terms are only used to distinguish one element from another element. For example, a first interface, a second interface, etc. Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including" specify the presence of stated features, steps, operations, elements, modules, items, categories, and/or groups, but do not preclude the presence, presence or addition of one or more other features, steps, operations, elements, modules, items, categories, and/or groups. The terms "or" and/or "as used herein are to be construed as inclusive, or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; A. b and C). An exception to this definition will occur only when a combination of elements, functions, steps or operations are in some way inherently mutually exclusive.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the language clearly indicates the contrary. The meaning of "comprising" in the specification is to specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but does not preclude the presence or addition of other features, regions, integers, steps, operations, elements, and/or components.

Although not differently defined, including technical and scientific terms used herein, all terms have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The term append defined in commonly used dictionaries is interpreted as having a meaning that is consistent with the meaning of the relevant technical literature and the currently prompted message, and is not excessively interpreted as an ideal or very formulaic meaning, so long as no definition is made.

Typically, a wireless signal is sent through the triggering device to trigger the tire pressure sensor to send the collected tire pressure information in reply. However, the triggering devices currently used all use a 125kHz low frequency wireless signal as the trigger signal for the sensor to wake up. However, since the tire pressure information is transmitted by another high-frequency wireless communication method, this actually results in the problems of difficulty in design, high cost, and the like, because a low-frequency wireless communication circuit of 125kHz needs to be provided in addition to the corresponding high-frequency wireless communication circuit. Correspondingly, the triggering device also has the same problems of design difficulty, high cost and the like.

In view of this, the embodiment of the disclosure provides a tire pressure sensor and a corresponding tire pressure detection triggering device, and utilizes a standard bluetooth communication mode to complete triggering and information transmission, thereby omitting a 125kHz low-frequency wireless communication circuit in the sensor and the triggering device.

As shown in fig. 1, a schematic circuit configuration of a tire pressure sensor in an embodiment of the present disclosure is shown.

As shown, the tire pressure sensor 100 includes: the tire pressure sensing unit 101, the first bluetooth antenna 102, the first bluetooth transceiver unit 103, and the first processing unit 104.

The tire pressure sensing unit 101 is configured to collect tire pressure state information. In some embodiments, the tire pressure sensing unit 101 may include: the air pressure sensor may be used to detect the air pressure of the tire, the temperature sensor may be used to detect the ambient temperature of the tire, and the memory storing the ID of the air pressure sensor 100, which is used to indicate the identity of the air pressure sensor 100 to which the air pressure state information belongs, the air pressure state information may include the air pressure information, the temperature information, and the air pressure sensor 100ID. In some embodiments, the tire pressure sensor 100 includes a battery 105, the battery 105 is connected to the first processing unit 104 and the tire pressure sensing unit 101 for supplying power, and the tire pressure sensing unit 101 can also obtain voltage information by monitoring the output voltage of the battery 105. Accordingly, the tire pressure state information may also include voltage information of the battery 105.

The tire pressure sensor 100 unit may be, for example, a dedicated tire pressure processor chip implementation, such as an MCU, soC, or the like. The tire pressure microprocessor chip can integrate the air pressure sensor, the temperature sensor, the memory and the like. The memory may include non-volatile memory (ROM).

The first bluetooth antenna 102 is configured to receive a bluetooth signal for detecting and waking up a tire pressure and transmit a bluetooth signal for detecting and waking up a tire pressure state based on a bluetooth preset operating frequency band and external communication.

The first bluetooth transceiver 103 is connected to the first bluetooth antenna 102, and is configured to modulate the tire pressure state bluetooth signal based on the tire pressure state information, and demodulate the tire pressure detection wake-up bluetooth signal.

In some embodiments, the first bluetooth transceiver unit 103 performs signal modulation or demodulation based on a bluetooth preset operating frequency band, where the bluetooth preset operating frequency band may be a 2.4G operating frequency band, and specifically may be in a frequency band of 83.5MHz from 2400MHz to 2483.5 MHz. The first bluetooth transceiver unit 103 may transmit or receive signals through the first bluetooth antenna 102.

The first bluetooth transceiver unit 103 may be configured to modulate or demodulate signals based on binary on-off keying (OOK) encoding rules. Binary on-off keying, also known as binary amplitude keying (2 ASK), is the control of the turning on and off of a sinusoidal carrier with a unipolar non-return-to-zero code sequence. For example, the OOK signal shown in fig. 4, the OOK coding rules may include: the 2.4G carrier that is continuously transmitted for a fixed time t is defined as code 1, and the 2.4G carrier that is not continuously transmitted for a fixed time t is defined as code 0. Illustratively, the first bluetooth transceiver unit 103 may include a Radio Frequency (RF), a Power Amplifier (PA), and the like.

The first processing unit 104 is connected to the first bluetooth transceiver unit 103 and the tire pressure sensing unit 101, and is configured to read the tire pressure status information from the tire pressure sensing unit 101 and transmit the tire pressure status information to the first bluetooth transceiver unit 103 in response to the tire pressure detection wake-up bluetooth signal, so as to send the corresponding tire pressure status bluetooth signal through the first bluetooth transceiver unit 103 and the first bluetooth antenna 102. In some embodiments, the first processing unit 104 may be implemented as an MCU, soC, or the like.

In some embodiments, the first processing unit 104 and the tire pressure sensing unit 101 may be implemented by different processing chips and connected to each other by a bus. Alternatively, in other embodiments, the first processing unit 104 and the tire pressure sensing unit 101 may be integrated in the same processing chip to simplify the circuit complexity. In addition, the first processing unit 104, the tire pressure sensing unit 101, and the first bluetooth transceiver unit may also be integrated in the same processing chip.

In some embodiments, referring to fig. 5, a schematic data structure of the tire pressure detection wake-up bluetooth signal may be shown.

The data structure of the tire pressure detection wake-up Bluetooth signal modulated and encoded sequentially comprises: a Preamble data segment (Preamble) storing a Preamble to be matched, a data segment storing data that can be received in the case of Preamble matching, and a check data segment storing check data. Illustratively, the preamble data segment may be 8 bits long, and the preamble may be a specific byte of 0, 1, such as 10101010 or 01010101, of the corresponding 8 bits. The data segment may be bytes of N, such as data 1-dataN in the illustration. The Check data segment may be 1 byte long, for example, as shown in Check in the drawing, in which Check data is stored for checking whether data1 to dataN are legal. The checking mode may adopt a Cyclic Redundancy Check (CRC) such as CRC8, so as to ensure the receiving correctness of the N data.

In one example, the first processing unit 104 may periodically turn on its internal micro-energy monitoring module (e.g., turn on a 100ms detection window every 1 second time to detect OOK signals) to wake up bluetooth signals from OOK-modulated tire pressure detection in the 2.4G frequency band on the first bluetooth antenna 102. If the tire pressure detection wake-up Bluetooth signal is detected, the Preamble in the Preamble section is matched, and the following N data are received and decoded according to the OOK coding rule under the condition of consistent matching. After decoding, checking the N data, and if the Check result is consistent with the Check code, considering that the data in the received tire pressure detection wake-up Bluetooth signal is valid. Thus, the triggering first processing unit 104 reads the data information of the tire pressure sensing unit 101, that is, the tire pressure status information, through the internal bus interface between the chips, and may include information combinations including the ID of the tire pressure sensor 100, the pressure of the currently detected air pressure, the temperature of the environment where the tire pressure sensor is located, the voltage of the battery 105, and the like. And the tire pressure state bluetooth signal with the tire pressure state information is broadcast and sent out through the first bluetooth antenna 102 after being modulated by the first bluetooth transceiver unit 103.

It should be noted that the above-described data structure of the tire pressure detection wake-up bluetooth signal is only an exemplary reference. It will be appreciated that those skilled in the art may well substitute for other data frame formats commonly used to accomplish the transmission and reception of signals, and that the present disclosure is not directed to software-improved protection.

As shown in fig. 2, a schematic circuit configuration of the tire pressure detecting trigger device 200 in the embodiment of the present disclosure is shown.

The tire pressure detecting and triggering device 200 includes an operation input unit 201, a second bluetooth antenna 202, a second bluetooth transceiver unit 203, and a second processing unit 204.

The operation input unit 201 is configured to accept an operation to generate an input signal. In some embodiments, the operation input unit 201 includes: a mechanical switch or a virtual switch. For example, the mechanical switches may include key switches, toggle switches, touch pressure switches, etc., and the virtual switches may be virtual keys displayed on a touch display screen, etc.

The second bluetooth antenna 202 is configured to communicate with the outside based on a bluetooth preset operating frequency band, and is configured to transmit a bluetooth signal for detecting and waking up the tire pressure and receive a responsive bluetooth signal for detecting and waking up the tire pressure. In some embodiments, the second bluetooth antenna 202 may transmit and receive 2.4GHz signals.

The second bluetooth transceiver 203 is connected to the second bluetooth antenna 202, and is configured to modulate the tire pressure state bluetooth signal based on the tire pressure state information, and demodulate the tire pressure detection wake-up bluetooth signal. The second bluetooth transceiver unit 203 is configured to modulate or demodulate bluetooth signals based on binary on-off keying coding rules. For example, the second bluetooth transceiver unit 203 may generate the tire pressure detection wake-up bluetooth signal with a data structure shown in fig. 5, where the data in the data1 to dataN is obtained by OOK modulation of the second bluetooth transceiver unit 203.

The second processing unit 204 is connected to the second bluetooth transceiver unit 203 and the operation triggering unit, and is configured to send a tire pressure detection wake-up bluetooth signal through the second bluetooth transceiver unit and the antenna in response to the input signal. As an example, the second processing unit 204 may be a chip implementation such as an MCU, soC, or the like.

In some embodiments, the tire pressure detecting and triggering device 200 further includes a display unit 205, where the display unit 205 is connected to the second processing unit 204, for displaying the tire pressure status information. Illustratively, the display unit 205 may include a display screen for displaying the tire pressure status information through a Graphical User Interface (GUI). For example, in the case where the information of the tire pressure state information transmitted by each tire pressure detection triggering device 200 is combined into "one piece" at a time, each piece of the tire pressure state information may be displayed separately from each other, such as in-line display. Each piece of tire pressure state information includes the tire pressure sensor 100ID, tire pressure, temperature, battery 105 voltage, and the like.

Referring to fig. 3A, a schematic structural diagram of a tire pressure monitoring system according to an embodiment of the present disclosure may be shown.

The tire pressure detecting system includes: a tire pressure detection trigger device 400, and a tire pressure sensor 300 in bluetooth communication with the tire pressure detection trigger device 400; wherein the tire pressure detection triggering device 400 transmits a tire pressure detection wake-up bluetooth signal in response to a user operation; the tire pressure sensor 300 receives the tire pressure detection wake-up bluetooth signal through bluetooth communication; and, in response to the wake-up bluetooth signal, a tire pressure state bluetooth signal carrying tire pressure loading information is transmitted to be received by the tire pressure detection triggering device 400.

Illustratively, the tire pressure detection triggering device 400 in fig. 3A may be implemented by the tire pressure detection triggering device 200 in fig. 2, and the tire pressure sensor 300 in fig. 3A may be implemented by the tire pressure sensor 100 in fig. 1. Accordingly, referring to fig. 3B, a schematic structural diagram of a tire pressure monitoring system according to yet another embodiment of the present disclosure may be shown.

In fig. 3B, the user operates a key on the input unit 201 through the tire pressure detection triggering device 200 to form an input signal to control the second processing unit 204 of the tire pressure detection triggering device 200 to broadcast and send the tire pressure detection wake-up bluetooth signal obtained by OOK modulation of the encoded 2.4G frequency band from the second bluetooth antenna 202 via the second bluetooth transceiver unit 203.

After the tire pressure detection triggering device 200 finishes transmitting the above signals, it starts waiting for receiving a response of the tire pressure state bluetooth signal containing the tire pressure state information sent from the tire pressure sensor 100. Illustratively, if no responsive bluetooth broadcast signal is received within time t2, a prompt is displayed by display unit 205 to indicate that the operation failed; otherwise, the received tire pressure state information may be displayed by the display unit 205.

The first processing unit 104 of the tire pressure sensor 100 may periodically turn on a micro-energy monitoring module therein to monitor a tire pressure detection wake-up bluetooth signal obtained by bluetooth 2.4G frequency band OOK regular modulation received from the first bluetooth antenna 102; when the tire pressure detection wake-up Bluetooth signal is received, preamble data matching can be performed. If the Preamble data are matched, the following N data are received, and are decoded by the first bluetooth transceiver unit 103 through OOK encoding rules, and the decoded data are checked by a CRC8 Check method based on Check data. If the verification is passed, the first processing unit 104 reads the tire pressure state information of the tire pressure sensing unit 101, and transmits a 2.4G tire pressure state Bluetooth signal with the tire pressure state information in a Bluetooth broadcasting mode through the first Bluetooth antenna after the tire pressure state information is modulated by the first Bluetooth receiving and transmitting circuit.

The second processing unit 204 of the tire pressure detecting and triggering device 200 receives the tire pressure state bluetooth signal, filters the tire pressure state bluetooth signal through the identity (such as the name) of the device, then checks the data, and decodes and displays the tire pressure state information in the broadcast signal after the data passes the check on the display unit 205.

In summary, the embodiment of the disclosure provides a tire pressure sensor, a tire pressure detection triggering device, and a tire pressure detection system, where the tire pressure sensor includes a tire pressure sensing unit, a first bluetooth antenna, a first bluetooth transceiver unit connected to the first bluetooth antenna, and a first processing unit connected to the first bluetooth transceiver unit and the tire pressure sensing unit; the tire pressure detection triggering device comprises an operation input unit, a second Bluetooth antenna, a second Bluetooth receiving and transmitting unit connected with the second Bluetooth antenna, and a second processing unit connected with the second Bluetooth receiving and transmitting unit and the operation input unit; the Bluetooth communication between the tire pressure sensor and the tire pressure detection triggering device can transmit the tire pressure detection wake-up Bluetooth signal generated by the operation of the tire pressure detection triggering device received by the operation input unit to the tire pressure sensor, so that the tire pressure sensor transmits the tire pressure state signal in response. Sensor triggering and information sending are completed through an independent Bluetooth module, so that a related circuit triggered by low frequency (such as 125 kHz) is omitted, and design difficulty and cost are reduced.

The above embodiments are merely illustrative of the principles of the present disclosure and its efficacy, and are not intended to limit the disclosure. Modifications and variations may be made to the above-described embodiments by those of ordinary skill in the art without departing from the spirit and scope of the present disclosure. Accordingly, it is intended that all equivalent modifications and variations which a person having ordinary skill in the art would accomplish without departing from the spirit and technical spirit of the present disclosure be covered by the claims of the present disclosure.

Claims (10)

1. A tire pressure sensor, comprising:

the tire pressure sensing unit is used for collecting tire pressure state information:

the first Bluetooth antenna is communicated with the outside based on a Bluetooth preset working frequency band and is used for receiving a tire pressure detection wake-up Bluetooth signal and transmitting a tire pressure state Bluetooth signal;

the first Bluetooth receiving and transmitting unit is connected with the first Bluetooth antenna and is used for modulating and obtaining the tire pressure state Bluetooth signal based on the tire pressure state information and demodulating the tire pressure detection wake-up Bluetooth signal;

and the first processing unit is connected with the first Bluetooth receiving and transmitting unit and the tire pressure sensing unit and is used for responding to the demodulated tire pressure detection wake-up Bluetooth signal, reading the tire pressure state information from the tire pressure sensing unit and transmitting the tire pressure state information to the first Bluetooth receiving and transmitting unit so as to transmit the corresponding tire pressure state Bluetooth signal through the first Bluetooth receiving and transmitting unit and the first Bluetooth antenna.

2. The tire pressure sensor according to claim 1, wherein the tire pressure sensing unit includes: an air pressure sensor, a temperature sensor, and a memory storing the tire pressure sensor ID; the tire pressure state information includes: tire pressure information, temperature information, and tire pressure sensor ID.

3. The tire pressure sensor according to claim 1 or 2, characterized by comprising: the battery is connected with the first processing unit and the tire pressure sensing unit; the tire pressure state information includes voltage information of the battery.

4. The tire pressure sensor of claim 1, wherein the data structure of the tire pressure detection wake-up bluetooth signal comprises, in order: the method comprises the steps of storing a preamble data segment of a preamble to be matched, storing a data segment of data which can be received under the condition of the matching of the preamble, and storing a check data segment for checking the data.

5. The tire pressure sensor of claim 1, wherein the first processing unit and the tire pressure sensing unit are integrated in the same processing chip;

or, the first processing unit, the tire pressure sensing unit and the first bluetooth transceiver unit are integrated in the same processing chip.

6. A tire pressure detecting and triggering device, comprising:

an operation input unit for receiving an operation to generate an input signal;

the second Bluetooth antenna is communicated with the outside based on a Bluetooth preset working frequency band and is used for sending a tire pressure detection wake-up Bluetooth signal and receiving a response tire pressure state Bluetooth signal;

the second Bluetooth receiving and transmitting unit is connected with the second Bluetooth antenna and is used for modulating the tire pressure detection wake-up Bluetooth signal based on a Bluetooth preset working frequency band and demodulating the tire pressure state Bluetooth signal to obtain tire pressure state information;

and the second processing unit is connected with the second Bluetooth receiving and transmitting unit and the operation triggering unit and is used for responding to the input signal and transmitting a tire pressure detection awakening Bluetooth signal through the second Bluetooth receiving and transmitting unit and the antenna.

7. The tire pressure detection triggering device of claim 6, further comprising: and the display unit is connected with the second processing unit and is used for displaying the tire pressure state information.

8. The tire pressure detection triggering device of claim 6, wherein the data structure of the tire pressure detection wake-up bluetooth signal comprises, in order: the method comprises the steps of storing a preamble data segment of a preamble to be matched, storing a data segment of data which can be received under the condition of the matching of the preamble, and storing a check data segment for checking the data.

9. The tire pressure detection triggering device of claim 6, wherein the operation input unit includes: a mechanical switch or a virtual switch.

10. A tire pressure detecting system, characterized by comprising:

a tire pressure detection trigger device, and a tire pressure sensor in bluetooth communication with the tire pressure detection trigger device;

the tire pressure detection triggering device responds to user operation to send out a tire pressure detection wake-up Bluetooth signal; the tire pressure sensor receives the tire pressure detection wake-up Bluetooth signal through Bluetooth communication; and, in response to the wake-up bluetooth signal, transmitting a tire pressure state bluetooth signal carrying tire pressure loading information to be received by the tire pressure detection triggering device.