CN114407586A - Low-power-consumption tire pressure monitoring device and method - Google Patents
Low-power-consumption tire pressure monitoring device and method Download PDFInfo
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- CN114407586A CN114407586A CN202210146614.5A CN202210146614A CN114407586A CN 114407586 A CN114407586 A CN 114407586A CN 202210146614 A CN202210146614 A CN 202210146614A CN 114407586 A CN114407586 A CN 114407586A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
- B60C23/0433—Radio signals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0479—Communicating with external units being not part of the vehicle, e.g. tools for diagnostic, mobile phones, electronic keys or service stations
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- Mechanical Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to the technical field of tire pressure monitoring, in particular to a low-power consumption tire pressure monitoring device and a low-power consumption tire pressure monitoring method, wherein the tire pressure monitoring device comprises an SoC integrated with a BLE transceiver and a sensing chip integrated with an LF receiver, the SoC is connected with the sensing chip through a communication bus, the working mode of the tire pressure monitoring device comprises a storage mode and a standard mode, the LF receiver is used for monitoring an LF command in the storage mode and activating the sensing chip according to the LF command; the sensor chip is used for sending a wake-up signal to the SoC according to an LF command in a storage mode and acquiring parameters in a standard mode, and the wake-up signal is used for switching the SoC from the storage mode to the standard mode; the SoC is used for low-power-consumption state switching and data uploading in a standard mode. The parameter acquisition and data interaction frequency are reasonably designed, the tire pressure detection sensitivity is ensured, and on the other hand, the current consumption is reduced, and the service life and the service time of equipment are prolonged.
Description
Technical Field
The invention relates to the technical field of tire pressure monitoring, in particular to a low-power-consumption tire pressure monitoring device and method.
Background
The tire pressure monitoring sensor system has strict requirements on the volume and the weight of the tire pressure monitoring sensor because the tire pressure monitoring sensor system is placed in a tire, and has extremely high design requirements on low power consumption because the battery capacity is usually a fixed value. At present, most of tire pressure monitoring sensor systems in the industry adopt 315MHz/434MHz communication frequency, according to public data of various manufacturers in the industry, instantaneous current during radio frequency transmission is 6.8mA, and data communication frequency is about 1 minute to send data once, so that the service life of the tire pressure monitoring sensor system is short (generally 3-4 years) due to large radio frequency transmission current; in order to prolong the service life of a tire pressure monitoring sensor system and reduce power consumption, the technical method adopted by various manufacturers at present is to reduce the communication frequency in unit time, but the reduction of the data communication frequency in unit time (usually 1 time in 1 minute) leads to the fact that the reported tire pressure and the displayed value are generally lagged behind the actual value, the tire pressure is displayed untimely, and the hidden danger of misjudgment is caused.
Patent 'tire pressure monitoring integrated circuit, transmitter and receiver' with grant publication No. CN208730717U discloses a tire pressure monitoring integrated circuit including a low-frequency wake-up receiving module, wherein the wake-up module is connected with a power management module for activating the power management module to supply power to a communication module, a main control module and the like after receiving an external wake-up signal, and the wake-up module can be a car key remote controller. However, the working mode of the patent is single, after the awakening, all the modules need to be powered to operate, a fixed power consumption strategy is adopted, and the power consumption reduction is still not ideal.
Disclosure of Invention
The invention aims to solve the contradiction between power consumption reduction and the delay of reporting compared with an actual value, overcome the problems that the power consumption reduction is not ideal due to a single working mode and a fixed power consumption strategy adopted in the tire pressure monitoring device in the prior art, and provide the tire pressure monitoring device with low power consumption.
In order to achieve the above purpose, the invention provides the following technical scheme:
a low-power consumption tire pressure monitoring device comprises a SoC integrated with a BLE transceiver and a sensing chip integrated with an LF receiver, wherein the SoC is connected with the sensing chip through a first communication bus, the working modes of the tire pressure monitoring device comprise a storage mode and a standard mode,
the LF receiver is used for intercepting an LF command in a storage mode and activating the sensing chip according to the LF command;
the sensor chip is used for sending a wake-up signal to the SoC according to an LF command in a storage mode and acquiring parameters in a standard mode, and the wake-up signal is used for switching the SoC from the storage mode to the standard mode;
the SoC is used for switching low power consumption states and uploading data in a standard mode;
the low power consumption state comprises a parking state, a driving starting state and a driving state, wherein in each state, the acceleration acquisition frequency of the sensor chip and the tire pressure acquisition frequency of the sensor chip are respectively acquired according to the state, and the data uploading frequency of the SoC is uploaded through the BLE transceiver according to the state.
According to the invention, by setting the storage mode and the standard mode and setting the default state of the tire pressure monitoring device as the storage mode, all system components are in the lowest power consumption state (dormant state) in the storage mode, so that the power consumption is saved to the maximum extent, and in the standard mode, by setting different low power consumption states: the tire pressure monitoring system has the advantages that the tire pressure monitoring requirements of a vehicle in different states are met in a parking state, a driving starting state and a driving state, meanwhile, the acquisition and reporting frequency is correspondingly set according to the vehicle running characteristics in different states, the tire pressure parameter acquisition and data interaction frequency is reasonably designed, the tire pressure detection sensitivity is ensured, on the other hand, on the premise of meeting the monitoring requirements, the working mode is flexibly adjusted, the most appropriate low-power-consumption strategy is adopted, the system state and state migration are reasonably divided, the device standby time, the data acquisition type and frequency and the data interaction frequency between communication interfaces are reasonably designed, the current consumption is reduced, and the service life of equipment are prolonged.
By increasing the radio frequency emission frequency from 413MHz/434MHz to the 2.4GHz frequency of BLE, the instantaneous current of radio frequency emission and the standby current of a chip are reduced.
Preferably, in the warehousing mode, the rest parts of the sensing chip except the LF receiver and the SoC are in a sleep state.
Preferably, the LF receiver listens for LF commands in the warehouse mode at a frequency of once every 4 seconds.
The invention is used for monitoring and receiving LF commands in the storage mode by adding a 125KHz LF (low frequency) receiver, and by the preferred embodiment, devices which do not need to work are enabled to enter the dormancy state in the storage mode, and the LF receiver is set to monitor once every 4 seconds, so that the average current consumed by the tire pressure monitoring device in the storage mode is reduced to the level of 2 uA.
Further, the sensor chip sends a wake-up signal to enable the SoC to switch from the storage mode to the standard mode, and the LF receiver is turned off to reduce power consumption.
Further, the low power consumption state switching in the standard mode is specifically realized by that in a parking state, a sensing chip reads an acceleration value and converts the acceleration value into a vehicle speed or a rotating speed, and when the vehicle speed or the rotating speed reaches a first threshold value, the parking state is switched to a driving starting state; if the duration of the vehicle speed or the rotating speed which is not less than the first threshold reaches a second threshold, switching from a driving starting state to a driving state; and if the vehicle speed or the rotating speed is equal to 0 and the duration reaches a third threshold value, switching from the driving state to the parking state.
Preferably, the frequency of acquiring the acceleration of the sensing chip in the parking state is set to be once every 30 seconds, the frequency of acquiring the tire pressure of the sensing chip is set to be once every minute, and the frequency of uploading data by the SoC through the BLE transceiver is set to be stopped.
Preferably, the frequency of acquiring the acceleration of the sensor chip in the driving starting state is set to be once every 2 seconds, the frequency of acquiring the tire pressure of the sensor chip is set to be once every 2 seconds, and the frequency of uploading data by the SoC through the BLE transceiver is set to be once every 2 seconds.
Preferably, in the driving state, the frequency of acquiring the acceleration of the sensor chip is set to be once every 1 minute, the frequency of acquiring the tire pressure of the sensor chip is set to be once every 2 seconds, when the tire pressure is within the preset safety range, the frequency of uploading data through the BLE transceiver by the SoC is set to be once every 1 minute, and when the tire pressure is not within the preset safety range, the frequency of uploading data through the BLE transceiver by the SoC is set to be once every 2 seconds.
Preferably, the tire pressure monitoring device further comprises a memory chip, the memory chip is connected with the SoC through a second communication bus, and the memory chip is used for OTA upgrade and firmware storage.
Through the preferred embodiment, the invention provides the technical scheme of the memory chip for OTA (over the air) upgrading and firmware storage, and is favorable for simplifying the subsequent maintenance and product upgrading processes.
The tire manufacturer can activate and diagnose the tire pressure by pre-installing the tire pressure monitoring device in the tire and sending commands to the sensing chip by using the LF transmitter.
Based on the same inventive concept, a low-power consumption tire pressure monitoring method is provided, which comprises the following steps:
monitoring an LF (low frequency) command in a storage mode, activating a tire pressure monitoring device according to the LF command, and switching a working mode into a standard mode after activation;
in the standard mode, reading an acceleration value and converting the acceleration value into a vehicle speed or a rotating speed, and when the vehicle speed or the rotating speed reaches a first threshold value, switching from a parking state to a driving starting state; if the duration of the vehicle speed or the rotating speed which is not less than the first threshold reaches a second threshold, switching from a driving starting state to a driving state; switching from a driving state to a parking state if the vehicle speed or the rotational speed is equal to 0 and the duration reaches a third threshold;
when the automobile is in a parking state, a driving state or a driving state, acquiring according to the frequency of the acceleration acquired by the sensing chip and the frequency of the tire pressure acquired by the sensing chip, and uploading according to the frequency of the data uploading of the BLE transceiver of the SoC in the state.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, by setting the storage mode and the standard mode and setting the default state of the tire pressure monitoring device as the storage mode, all system components are in the lowest power consumption state (dormant state) in the storage mode, so that the power consumption is saved to the maximum extent, and in the standard mode, by setting different low power consumption states: the tire pressure monitoring system has the advantages that the tire pressure monitoring requirements of a vehicle in different states are met in a parking state, a driving starting state and a driving state, meanwhile, the acquisition and reporting frequency is correspondingly set according to the vehicle running characteristics in different states, the tire pressure parameter acquisition and data interaction frequency is reasonably designed, the tire pressure detection sensitivity is ensured, on the other hand, on the premise of meeting the monitoring requirements, the working mode is flexibly adjusted, the most appropriate low-power-consumption strategy is adopted, the system state and state migration are reasonably divided, the device standby time, the data acquisition type and frequency and the data interaction frequency between communication interfaces are reasonably designed, the current consumption is reduced, and the service life of equipment are prolonged.
2. According to the invention, the radio frequency emission frequency is increased from 413MHz/434MHz to 2.4GHz frequency of BLE, so that the instantaneous current of radio frequency emission and the standby current of a chip are reduced, meanwhile, a 125KHz LF (low frequency) receiver is additionally arranged for monitoring and receiving LF commands in a storage mode, and through a preferred implementation mode, devices which do not need to work are enabled to enter dormancy in the storage mode, and the LF receiver is set to monitor once every 4 seconds, so that the average current consumed by the tire pressure monitoring device in the storage mode is reduced to the level of 2 uA.
3. The tire manufacturer can activate and diagnose the tire pressure by pre-installing the tire pressure monitoring device of the present invention in the tire and sending a command to the sensor chip U2 using the LF transmitter.
4. The invention provides a technical scheme comprising a storage chip for OTA (over the air) upgrading and firmware storage through a preferred implementation mode, and is beneficial to simplifying subsequent maintenance and product upgrading processes.
Drawings
Fig. 1 is a hardware block diagram of a tire pressure monitoring device.
Fig. 2 is a software flowchart of the tire pressure monitoring device.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.
Example 1
A low-power consumption tire pressure monitoring device is shown in figure 1 and comprises a SoC U1, a sensing chip U2, a memory U3, a BLE antenna, an LF antenna, a battery and related peripheral circuits.
The SoC U1 and the sensor chip U2 are connected by a communication bus interface 1, and the SoC U1 and the memory chip U3 are connected by a communication bus interface 2. Memory U3 is used for OTA upgrades and firmware storage. And the firmware OTA is upgraded, so that the subsequent maintenance and product upgrading process can be simplified.
The battery provides the power for whole tire pressure monitoring device, and the used specific model is BAT CR 2050.
The SoC U1 is a SoC supporting a BLE 5.1 low-power Bluetooth protocol, and is integrated with a 2.4GHz BLE transceiver and an Arm Cortex-M0+ microcontroller; the 125KHz LF receiver (low frequency receiver) and the MCU are integrated in the sensing chip U2.
The LF antenna connected to the LF receiver is used for receiving an LF command; the LF receiver is used for intercepting an LF command in a storage mode, and activating the sensing chip or recovering a factory mode according to the LF command;
the sensor chip is used for sending a wake-up signal to the SoC according to an LF command in a storage mode and acquiring parameters in a standard mode, and the wake-up signal is used for switching the SoC from the storage mode to the standard mode; specifically, the parameters collected by the sensing chip U2 in the standard mode include pressure, acceleration, voltage, tire pressure and/or temperature, etc.
The SoC is used for low-power-consumption state switching and data uploading in a standard mode. Namely, the SoC U1 is responsible for data analysis, tire pressure threshold determination, and low power consumption policy processing; the BLE antenna is connected to the SoC integrated with a BLE transceiver, and the BLE transceiver is used for data interaction with an automobile console (or an external BLE device) APP;
the tire pressure monitoring device of the invention defines two modes through software: warehouse mode and standard mode. The software flow for switching between the warehouse mode and the standard mode is shown in fig. 2.
The storage mode is a default working mode of the tire pressure monitoring device, the tire pressure monitoring sensor system is in a lowest power consumption monitoring state in the storage mode, all parts such as the SoC U1 and the sensing chip U2 are in a lowest power consumption state (sleep state) at the moment, and only the LF receiver integrated in the sensing chip U2 works. The LF receiver monitors an LF command sent by an LF transmitter from the outside (a tire manufacturer or an entire automobile developer) every 4S, the LF receiver activates the sensing chip U2 to analyze the LF command after receiving the LF command, if the activation command is analyzed, the SoC U1 is activated, the whole tire pressure monitoring device enters a standard mode, and meanwhile, the LF receiver is turned off to further reduce the power consumption of the tire pressure monitoring sensor system. On the contrary, if the sensor chip U2 does not resolve the activation command, the LF receiver continues to listen for the next period, the sensor chip U2 enters the sleep state again, and the average current of the tire pressure monitoring device in the warehousing mode is 2 uA. The storage mode settings of this embodiment are shown in table 1 below.
TABLE 1 storage mode settings
According to the invention, the radio frequency emission frequency is increased from 413MHz/434MHz to 2.4GHz frequency of BLE, so that the instantaneous current of radio frequency emission and the standby current of a chip are reduced, and meanwhile, a 125KHz LF (low frequency) receiver is additionally arranged for monitoring and receiving LF commands in a storage mode, so that the average current consumed by the tire pressure monitoring device in the storage mode is reduced to the level of 2 uA.
After entering the standard mode, the low power consumption state of the tire pressure monitoring device is further divided into three states, namely a parking state, a driving starting state and a driving state. Referring again to fig. 2, the software flow for switching between the three states is as follows:
a parking state: the SoC U1 is in a sensing state and the sensor chip U2 is in an active state. In a parking state, the sensor chip U2 reads an X/Z axis acceleration value once every 30s, converts the acceleration value into a vehicle speed or a rotating speed through the SoC U1, and enters a driving starting state if a triggering condition is met, for example, the vehicle speed is greater than a first threshold value of 5 km/h; and if the triggering condition is not met, for example, the vehicle speed is less than the first threshold value of 5km/h, continuing to maintain the parking state. In the parking state, the SoC U1 does not transmit or receive radio frequency signals, and the average current consumption of the tire pressure monitoring device is about 3 uA.
A driving starting state: in a starting driving state, the vehicle speed is greater than a first threshold value of 5km/h, and the SoC U1 reports system data such as tire pressure, temperature and the like to the central console APP once every 2s through the BLE antenna. After entering the driving start state for a certain period of time, i.e., for a period of time in which the vehicle speed or the rotational speed is not less than the first threshold value reaches the second threshold value, for example, 5 minutes, the tire pressure monitoring device enters the driving state. In the driving state, the average current consumption of the tire pressure monitoring sensor system is 20 uA.
The driving state is as follows: the tire pressure sensor U2 collects data every 2s in a driving state, and when the tire pressure is within a preset safety range, for example, the tire pressure variation is less than or equal to 30Kpa/s, the SoC U1 reports the data to the central control station APP every 1 minute through the BLE antenna; when the tire pressure variation is larger than 30Kpa/s, the BLE SoC U1 reports data to the center console APP once every 2s through the BLE antenna. The sensor chip U2 collects acceleration values of the X/Z axis once per minute and calculates the speed, and when the speed is 0 and the duration reaches a third threshold value, for example, 5 minutes, the tire pressure monitoring device is switched to a parking state.
The settings of the three states in the standard mode in this embodiment are shown in table 2 below.
TABLE 2 settings of parking status, starting driving status, and driving status in the standard mode
According to the invention, by setting the storage mode and the standard mode and setting the default state of the tire pressure monitoring device as the storage mode, all system components are in the lowest power consumption state (dormant state) in the storage mode, so that the power consumption is saved to the maximum extent, and in the standard mode, by setting different low power consumption states: the tire pressure monitoring system has the advantages that the tire pressure monitoring requirements of a vehicle in different states are met in a parking state, a driving starting state and a driving state, meanwhile, the acquisition and reporting frequency is correspondingly set according to the vehicle running characteristics in different states, the tire pressure parameter acquisition and data interaction frequency is reasonably designed, the tire pressure detection sensitivity is ensured, on the other hand, on the premise of meeting the monitoring requirements, the working mode is flexibly adjusted, the most appropriate low-power-consumption strategy is adopted, the system state and state migration are reasonably divided, the device standby time, the data acquisition type and frequency and the data interaction frequency between communication interfaces are reasonably designed, the current consumption is reduced, and the service life of equipment are prolonged.
In another embodiment, a tire manufacturer may perform activation and tire pressure diagnosis by pre-installing a tire pressure monitoring device according to the present invention in a tire and using the LF transmitter to send commands to the sensor chip U2.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A low-power consumption tire pressure monitoring device comprises a SoC integrated with a BLE transceiver and a sensing chip integrated with an LF receiver, wherein the SoC is connected with the sensing chip through a first communication bus, and is characterized in that the working modes of the tire pressure monitoring device comprise a storage mode and a standard mode,
the LF receiver is used for intercepting an LF command in a storage mode and activating the sensing chip according to the LF command;
the sensor chip is used for sending a wake-up signal to the SoC according to an LF command in a storage mode and acquiring parameters in a standard mode, and the wake-up signal is used for switching the SoC from the storage mode to the standard mode;
the SoC is used for switching low power consumption states and uploading data in a standard mode;
the low power consumption state comprises a parking state, a driving starting state and a driving state, wherein in each state, the acceleration acquisition frequency of the sensor chip and the tire pressure acquisition frequency of the sensor chip are respectively acquired according to the state, and the data uploading frequency of the SoC is uploaded through the BLE transceiver according to the state.
2. The tire pressure monitoring device with low power consumption as claimed in claim 1, wherein in the warehousing mode, the rest of the sensor chip except the LF receiver and the SoC are in a sleep state.
3. The tire pressure monitoring device with low power consumption as claimed in claim 1, wherein the LF receiver listens for LF commands in the warehouse mode at a frequency of once every 4 seconds.
4. The tire pressure monitoring device with low power consumption as claimed in claim 1, wherein the sensor chip sends a wake-up signal to switch the SoC from the storage mode to the standard mode, and the LF receiver is turned off to reduce power consumption.
5. The tire pressure monitoring device with low power consumption according to any one of claims 1 to 4, wherein the low power consumption state in the standard mode is switched by reading an acceleration value and converting the acceleration value into a vehicle speed or a rotating speed in a parking state, and switching from the parking state to a driving starting state when the vehicle speed or the rotating speed reaches a first threshold value; if the duration of the vehicle speed or the rotating speed which is not less than the first threshold reaches a second threshold, switching from a driving starting state to a driving state; and if the vehicle speed or the rotating speed is equal to 0 and the duration reaches a third threshold value, switching from the driving state to the parking state.
6. The tire pressure monitoring device with low power consumption according to claim 5, wherein the frequency of acquiring the acceleration of the sensor chip in the parking state is set to be once every 30 seconds, the frequency of acquiring the tire pressure of the sensor chip is set to be once per minute, and the frequency of uploading data by the SoC through the BLE transceiver is set to be stopped.
7. The tire pressure monitoring device with low power consumption according to claim 6, wherein the frequency of acquiring the acceleration of the sensor chip in the driving starting state is set to be once every 2 seconds, the frequency of acquiring the tire pressure of the sensor chip is set to be once every 2 seconds, and the frequency of uploading data by the SoC through the BLE transceiver is set to be once every 2 seconds.
8. The tire pressure monitoring device with low power consumption according to claim 7, wherein in the driving state, the frequency for acquiring the acceleration of the sensor chip is set to be once every 1 minute, the frequency for acquiring the tire pressure of the sensor chip is set to be once every 2 seconds, when the tire pressure is within the preset safety range, the frequency for the SoC to upload data through the BLE transceiver is set to be once every 1 minute, and when the tire pressure is not within the preset safety range, the frequency for the SoC to upload data through the BLE transceiver is set to be once every 2 seconds.
9. The tire pressure monitoring device with low power consumption of claim 8, wherein the tire pressure monitoring device further comprises a memory chip, the memory chip is connected with the SoC through a second communication bus, and the memory chip is used for OTA upgrade and firmware storage.
10. A low-power consumption tire pressure monitoring method, comprising:
monitoring an LF (low frequency) command in a storage mode, activating a tire pressure monitoring device according to the LF command, and switching a working mode into a standard mode after activation;
in the standard mode, reading an acceleration value and converting the acceleration value into a vehicle speed or a rotating speed, and when the vehicle speed or the rotating speed reaches a first threshold value, switching from a parking state to a driving starting state; if the duration of the vehicle speed or the rotating speed which is not less than the first threshold reaches a second threshold, switching from a driving starting state to a driving state; switching from a driving state to a parking state if the vehicle speed or the rotational speed is equal to 0 and the duration reaches a third threshold;
when the automobile is in a parking state, a driving state or a driving state, acquiring according to the frequency of the acceleration acquired by the sensing chip and the frequency of the tire pressure acquired by the sensing chip, and uploading according to the frequency of the data uploading of the BLE transceiver of the SoC in the state.
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