WO2017181629A1

WO2017181629A1 - Tire pressure monitoring system and methods, and computer storage medium

Info

Publication number: WO2017181629A1
Application number: PCT/CN2016/102376
Authority: WO
Inventors: 刘波
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-04-22
Filing date: 2016-10-18
Publication date: 2017-10-26
Also published as: CN107303785A

Abstract

A tire pressure monitoring system (10) comprises: a tire pressure sensor (101); a host (102) connected to the tire pressure sensor (101); and a client (103) wirelessly connected to the host (102). The host (102) is provided with a long-term evolution Internet of Things (LTE-M) module (1021). The tire pressure sensor (101) is used to detect a tire pressure of a tire of a vehicle and to transmit the tire pressure to the host (102). The host (102) is used to determine whether the tire pressure of the vehicle is abnormal. If the tire pressure is abnormal, the LTE-M module (1021) transmits the tire pressure and/or warning information to the client (103). Also disclosed are a tire pressure monitoring method for use in a host, a tire pressure monitoring method for use in a cloud server, and a computer storage medium.

Description

Tire pressure monitoring system, method and computer storage medium

Technical field

The invention relates to a tire pressure detecting technology in the field of automobile control, in particular to a tire pressure monitoring system, a method and a computer storage medium.

Background technique

With the improvement of people's living standards, the popularity of automobiles is getting higher and higher. The convenient and fast features of the car have made it the preferred means of transportation for people. In practical applications, inflatable tires are usually used in automobiles, and tire pressure is an important parameter for ensuring the safety and comfort of the vehicle.

In the prior art, in order to ensure the safety and comfort of the vehicle, it is necessary to detect the tire pressure of the tire in real time. Specifically, a tire pressure sensor may be disposed on a tire of the vehicle, and a tire pressure of the vehicle tire may be collected in real time, and then the collected tire pressure is transmitted to a host disposed inside the vehicle, and sent to the client by the host. So that the user can check the state of the tire pressure of the vehicle in real time, and avoid the safety hazard caused by the large change of the tire pressure.

However, the existing tire detection system usually uses the vehicle battery to supply power. When the vehicle engine is in the flameout state, the battery power of the vehicle is limited, and the tire pressure of the vehicle is collected and transmitted in real time, and the communication module needs to be in the online state for a long time, and Most of the existing communication modules occupy large bandwidth and high power consumption, which results in a large power consumption of the host, which causes waste of resources, and thus easily causes a battery battery to lose points and affects the startup of the vehicle.

Summary of the invention

In order to solve the above technical problem, embodiments of the present invention are expected to provide a tire pressure monitoring system, method, and computer storage medium, which can realize tire pressure monitoring under low power consumption, save resources, and avoid The adverse effects caused by the depletion of the vehicle battery.

To achieve the above objective, the technical solution of the embodiment of the present invention is implemented as follows:

In a first aspect, an embodiment of the present invention provides a tire pressure monitoring system, including: a tire pressure sensor, a host connected to the tire pressure sensor, and a client wirelessly connected to the host; the host is configured to have a long term evolution Internet of Things (LTE-M, LTE-Machine to Machine) module;

The tire pressure sensor is configured to detect a tire pressure of a vehicle tire and transmit the tire pressure to the host;

The host is configured to determine whether an abnormality occurs in a tire pressure of the vehicle; and when an abnormality occurs in a tire pressure of the vehicle, the LTE-M module is used to send the tire pressure and/or alarm information to the client.

In the above solution, optionally, the host is further configured to close the LTE-M module when an abnormality occurs in a tire pressure of the vehicle.

In the above solution, optionally, the host is specifically configured to acquire a change amount of the tire air pressure in the preset time period, and determine whether the change amount is greater than or equal to a preset pressure difference threshold value; when the change amount is greater than or equal to the When the pressure difference threshold is described, it is determined that the tire pressure of the vehicle is abnormal; when the amount of change is less than the pressure difference threshold, it is determined that the tire pressure of the vehicle is not abnormal.

In the above solution, optionally, the host is further provided with a power source;

The host is further configured to determine whether the vehicle engine is in a flameout state, and the power source is used to power the host when the vehicle engine is in a flameout state.

Optionally, the client is configured to send a host identifier and a verification password to the host.

The host is further configured to determine, according to the host identifier and the verification password, whether the client passes the verification; when the client passes the verification, and the tire pressure of the vehicle is abnormal, adopting the LTE- The M module sends the tire pressure and/or alarm information to the client.

In the above solution, optionally, the system further includes a cloud server, and the host passes the The cloud server is wirelessly connected to the client;

The host is further configured to send the tire pressure and/or the alarm information to the cloud server by using the LTE-M module;

The cloud server is configured to send the tire pressure and/or the alert information to the client.

In the above solution, optionally, the client is further configured to send the vehicle type information and the tire information of the vehicle to the cloud server;

The cloud server is further configured to determine whether an abnormality occurs in a tire pressure of the vehicle according to the vehicle type information and the tire information; and when the tire pressure of the vehicle is abnormal, send the tire pressure to the client And/or the alarm information.

In the above solution, optionally, the client is further configured to acquire the tire pressure, the traveling speed and the total mileage information of the current vehicle, and send the tire pressure, the traveling speed and the total mileage information of the current vehicle to the cloud. server;

The cloud server is further configured to receive the tire pressure, the traveling speed and the total mileage information of the corresponding vehicle sent by the plurality of clients, according to the received tire pressure, the traveling speed and the total mileage information of the corresponding vehicle sent by the plurality of clients, Obtaining a correspondence relationship between the speed, the mileage and the tire pressure; determining, according to the corresponding relationship between the speed, the mileage and the tire pressure, whether the tire pressure of the current vehicle is abnormal; when the tire pressure of the current vehicle is abnormal, The client corresponding to the current vehicle transmits the tire pressure and/or alarm information.

In a second aspect, an embodiment of the present invention provides a tire pressure monitoring method, which is applied to a host, where the host is provided with a long-term evolution Internet of Things LTE-M module, and the method includes:

Obtaining the tire pressure of the vehicle tire;

Determining whether the tire pressure of the vehicle is abnormal;

When the tire pressure of the vehicle is abnormal, the LTE-M module is used to send the tire pressure and/or alarm information to the client.

In the above solution, optionally, after the determining whether the tire pressure of the vehicle is abnormal, the method further includes:

When the tire pressure of the vehicle does not abnormal, the LTE-M module is turned off.

In the above solution, optionally, determining whether the tire pressure of the vehicle is abnormal includes:

Obtaining the amount of change in tire pressure during the preset time period;

Determining whether the amount of change is greater than or equal to a preset pressure difference threshold;

Determining that an abnormality occurs in a tire pressure of the vehicle when the amount of change is greater than or equal to the threshold of the pressure difference;

When the amount of change is less than the pressure difference threshold, it is determined that the tire pressure of the vehicle is not abnormal.

In the foregoing solution, optionally, the sending, by using the LTE-M module, the tire pressure and/or alarm information to the client includes:

The tire pressure and/or the alarm information is sent to the cloud server by using the LTE-M module, so that the cloud server sends the tire pressure and/or the alarm information to the client.

In a third aspect, an embodiment of the present invention provides a tire pressure monitoring method, which is applied to a cloud server, and includes:

Receiving the tire pressure of the current vehicle sent by the host;

Receiving vehicle type information and tire information of the current vehicle sent by the client;

Determining whether an abnormality occurs in the tire pressure of the current vehicle according to the vehicle type information and the tire information of the current vehicle;

The tire pressure and/or alarm information is sent to the client when an abnormality occurs in the tire pressure of the current vehicle.

In the above solution, optionally, the method further includes: receiving tire pressure, traveling speed, and total mileage information of the corresponding vehicle sent by the plurality of clients;

Obtaining a correspondence between speed, mileage and tire pressure according to the received tire pressure, running speed and total mileage information of the corresponding vehicle sent by the plurality of clients;

Determining whether the tire pressure of the current vehicle is abnormal according to the corresponding relationship between the speed, the mileage and the tire pressure;

When the tire pressure of the current vehicle is abnormal, the tire pressure and/or the alarm information is sent to a client corresponding to the current vehicle.

Embodiments of the present invention provide a computer storage medium in which a computer program is stored, the computer program for performing the tire pressure monitoring method described above.

Embodiments of the present invention provide a tire pressure monitoring system, method, and computer storage medium, the tire pressure monitoring system including: a tire pressure sensor, a host connected to the tire pressure sensor, and a customer wirelessly connected to the host The host is provided with a long term evolution IoT LTE-M module; the tire pressure sensor is configured to detect a tire pressure of a vehicle tire and transmit the tire pressure to the host; the host is configured to determine the Whether the tire pressure of the vehicle is abnormal; when the tire pressure of the vehicle is abnormal, the LTE-M module is used to send the tire pressure and/or alarm information to the client. Compared with the prior art, if the vehicle engine is in the flameout state, it can first determine whether the tire pressure is abnormal, and only when the tire pressure is abnormal, the tire pressure or alarm information is sent, thereby reducing the data transmission frequency, thereby reducing the work. At the same time, due to the low power consumption and high delay of the LTE-M module, the LTE-M module is used to transmit the tire pressure or alarm information, which further reduces the power consumption when transmitting the tire pressure, thereby realizing the tire pressure under low power consumption. Monitoring, saving resources and avoiding the adverse effects caused by vehicle battery losses.

DRAWINGS

In the drawings, which are not necessarily to scale, the Like reference numerals with different letter suffixes may indicate different examples of similar components. The drawings generally illustrate the various embodiments discussed herein by way of example and not limitation.

1 is a schematic structural view 1 of a tire pressure monitoring system according to an embodiment of the present invention;

2 is a schematic structural view 2 of a tire pressure monitoring system according to an embodiment of the present invention;

3 is a schematic flow chart 1 of a tire pressure monitoring method according to an embodiment of the present invention;

FIG. 4 is a schematic flowchart 2 of a tire pressure monitoring method according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.

The embodiment of the present invention provides a tire pressure monitoring system 10, as shown in FIG. 1, the tire pressure monitoring system 10 includes: a tire pressure sensor 101, a host 102 connected to the tire pressure sensor 101, and the host 102 wirelessly connected client 103.

The host 102 is provided with a Long Term Evolution (LTE-Machine to Machine) (LTE-M) module 1021. The tire pressure sensor 101 is configured to detect a tire pressure of a vehicle tire and transmit the tire pressure to the host 102. The host 102 is configured to determine whether an abnormality occurs in a tire pressure of the vehicle; when the tire pressure of the vehicle is abnormal, the LTE-M module is used to send the tire pressure and/or an alarm to the client 103. information.

By way of example, assuming that the vehicle has four tires, the tire pressure monitoring system 10 can include four tire pressure sensors 101, which are respectively disposed on the valve cores of the four tires, and the tire pressure sensor 101 can be based on the valve core The air pressure is detected near the air pressure. Specifically, the tire pressure sensor 101 can be connected to the host 102 by means of a wireless connection. The wireless connection can be an infrared connection, a radio frequency connection, or a Bluetooth connection, which is not limited by the embodiment of the present invention; or A wired connection to the host 102 is achieved by wires.

For example, when it is determined whether the tire pressure of the vehicle is abnormal, the host 102 may preset a standard tire pressure and a preset threshold, and after receiving the tire pressure sent by the tire pressure sensor 101, first determine the tire pressure and the standard. Whether the difference between the tire pressures is greater than or equal to a preset threshold value, when the difference between the tire pressure and the standard tire pressure is greater than or equal to a preset threshold value, the tire pressure changes greatly, and air leakage or deflation may occur. At this time, it is possible to determine the abnormal tire pressure; when the difference between the tire pressure and the standard tire pressure is less than the preset threshold, the change in the tire pressure is small, and may be caused only by the environment or the road surface. Normal changes, it can be determined that there is no abnormality in the tire pressure. Alternatively, the host 102 may also preset a differential pressure threshold, and then obtain a maximum value and a minimum value of the tire pressure in the preset time period, the difference between the maximum value and the minimum value is a change amount of the tire pressure in the preset time period, and then determining the change. Whether the quantity is greater than or equal to the preset pressure difference threshold, when the change amount is greater than or equal to the pressure difference threshold, it indicates that the tire pressure changes greatly during the preset time period, and there may be a situation of air leakage or deflation. When it is determined that the tire pressure of the vehicle is abnormal, the tire pressure and/or alarm information needs to be sent to the client 103, the alarm information is used to indicate that the tire pressure of the vehicle is abnormal, and the client 103 may receive the alarm information after receiving the alarm information. The user is prompted on the display interface of the client 103, or the user is prompted to beep. The embodiment of the present invention does not limit this; when the amount of change is less than the threshold of the differential pressure, the change of the tire pressure in the preset time period is small. The slight change amount is a normal change caused by the environment or the road surface, and it can be determined that the tire pressure of the vehicle is not abnormal.

Optionally, when the host 102 determines that the tire pressure of the vehicle is abnormal, the user needs to be notified in time, so that the user can take remedial measures in time to avoid a greater potential safety hazard. Optionally, the eNB is configured with an LTE-M module, where the LTE-M module has the advantages of low power consumption, high delay, and the like, and the occupied bandwidth is small, and only a small amount of power is required to complete the data transmission, thereby reducing the Power consumption when sending tire pressure.

In this way, if the vehicle engine is in the flameout state, it can first determine whether the tire pressure is abnormal, and only send the tire pressure or alarm information when the tire pressure is abnormal, which reduces the data transmission frequency, thereby reducing the power consumption; Due to the low power consumption and high delay of the LTE-M module, the LTE-M module is used to transmit the tire pressure or alarm information, which further reduces the power consumption when transmitting the tire pressure, thereby realizing the tire pressure monitoring under low power consumption, saving Resources have avoided the adverse effects of vehicle battery losses.

Optionally, the host 102 is further configured to close the LTE-M module when an abnormality occurs in a tire pressure of the vehicle.

For example, when the host 102 determines that the tire pressure of the vehicle does not abnormal, the host 102 may not The client sends data. If the LTE-M module is in online mode at this time, it still needs to continuously supply power to the module, which causes waste of power. Therefore, when the tire pressure of the vehicle is not abnormal, the LTE-M module can be turned off, that is, the host 102 controls the power supply to stop supplying power to the module, so that the LTE-M module is in the sleep mode, further saving power; when the tire pressure of the vehicle appears When abnormal, the host 102 controls the power supply to supply power to the module, wakes up the LTE-M module, enables the LTE-M module to access the network, and sends data to the client.

Optionally, the host 102 is further provided with a power source; the host 102 is further configured to determine whether the vehicle engine is in a flameout state, and the power source is used to power the host 102 when the vehicle engine is in a flameout state.

For example, if the host takes power from the battery of the vehicle, when the engine of the vehicle is in a flameout state, the battery power is limited, and the long-term use of the battery power will inevitably cause the battery to lose power, thereby affecting the start of the vehicle. Therefore, in actual application, the host 102 can be provided with its own power supply. When the host 102 determines that the vehicle engine is currently in a flameout state, it can use its own power supply to supply power, thereby avoiding battery loss caused by long-term use of battery power. The power source may be a battery, a rechargeable lithium battery, or the like, which is not limited in the embodiment of the present invention. It should be noted that since the battery of the vehicle is always in the charging state when the engine of the vehicle is in operation, the battery is not depleted, so when the host 102 determines that the engine of the vehicle is in operation, the vehicle battery can still be used. powered by.

Optionally, the client 103 is configured to send a host identifier and a verification password to the host 102. The host 102 is further configured to determine, according to the host identifier and the verification password, whether the client 103 passes the verification. When the client 103 passes the verification and the tire pressure of the vehicle is abnormal, the LTE-M module is used to send the tire pressure and/or alarm information to the client 103.

For example, the host 102 is preset with a host identifier and a verification password, and the host identifier may be an International Mobile Equipment Identity (IMEI). The code, the verification password may be an access code corresponding to the IMEI code. When the user needs to use the client to check the tire pressure of the vehicle, the IMEI code and the network access password on the host 102 can be first checked, then the client 103 is opened, the IMEI code and the network access password of the host 102 are input, and the client 103 will input the MEI input by the user. The code and the network access password are sent to the host 102 corresponding to the MEI code. After receiving the IMEI code and the network access password sent by the client 103, the host 102 first determines whether the received IMEI code is the same as its own IMEI code, if the received IMEI is received. If the code is the same as the IMEI code, it is determined whether the received network password matches its own network access password. When the received IMEI code is the same as its own IMEI code, and the received network access password matches its own network access password, the client 103 is described. Upon verification, the host 102 sends an authentication certificate to the client 103 as an authentication credential for the client 103 to connect to the host 102; when the received IMEI code is different from its own IMEI code, or the received network access password is entered into the network. When the passwords do not match, the client 103 fails to pass the verification, and the host 102 sends a verification failure message to the client 103, so that the client 103 re- Since verification.

Optionally, as shown in FIG. 2, the system 10 further includes a cloud server 104, and the host 102 is wirelessly connected to the client 103 through the cloud server 104.

When the client 103 initiates the verification, the MEI code and the network access password input by the user may be sent to the cloud server 104, and then forwarded by the cloud server 104 to the host 102 corresponding to the MEI code. When the host 102 confirms that the client 103 passes the verification, The authentication certificate can be sent to the cloud server 104. The cloud server 104 forwards the authentication certificate to the client 103. The authentication certificate can also be used as a credential for the client 103 to log in to the cloud server.

Optionally, the host 102 is further configured to send the tire pressure and/or the alarm information to the cloud server 104 by using the LTE-M module; the cloud server 104 is configured to / or the alarm information is sent to the client 103.

For example, when the host 102 determines that the tire pressure of the vehicle is abnormal and needs to send the tire pressure and/or alarm information to the client 103, the LTE-M module may be used first to apply the tire pressure and/or alarm signal. The information is sent to the cloud server 104, which is then forwarded by the cloud server 104 to the client 103 so that the cloud server 104 can obtain information about the vehicle for big data analysis.

Optionally, the client 103 is further configured to send the vehicle type information and the tire information of the vehicle to the cloud server 104; the cloud server 104 is further configured to determine, according to the vehicle type information and the tire information, Whether the tire pressure of the vehicle is abnormal; when the tire pressure of the vehicle is abnormal, the tire pressure and/or the alarm information is transmitted to the client 103.

Illustratively, due to the variety of vehicles, the weight of different types of vehicles is different, so the required normal tire pressure is also different. Similarly, due to the difference in the method of making the tire, the material and the pattern, the normal tire pressure required for different types of tires is also different. Therefore, when the client 103 passes the verification, the vehicle type information and the tire information of the vehicle can be acquired, and the vehicle type information and the tire information are transmitted to the cloud server 104. Specifically, the vehicle type information may include parameters such as weight, wheelbase, length and width of the vehicle, and the tire information may include parameters such as diameter, width, material, type, and pattern of the tire. The cloud server 104 can obtain the normal range of vehicle tire pressures of different models given by the manufacturer, and the normal range of tire pressures of different tires. After the cloud server 104 receives the vehicle type information and the tire information transmitted by the client 103, the normal tire pressure range corresponding to the vehicle type information and the tire information may be determined, and after receiving the tire pressure of the vehicle transmitted by the client 103, It can be determined whether the tire pressure is within the normal tire pressure range corresponding to the vehicle model information and the tire information. When the tire pressure is within the normal tire pressure range of the vehicle, the tire pressure is not abnormal; when the tire pressure is When the normal tire pressure range corresponding to the vehicle is exceeded, it indicates that the tire pressure is abnormal, and the tire pressure and/or alarm information needs to be sent to the client 103.

Optionally, the client 103 is further configured to acquire the tire pressure, the traveling speed and the total mileage information of the current vehicle, and send the tire pressure, the traveling speed and the total mileage information of the current vehicle to the cloud server 104; The cloud server 104 is further configured to receive the tire pressure, the traveling speed and the total mileage information of the corresponding vehicle sent by the plurality of clients 103, according to the received tire pressure, the traveling speed and the total of the corresponding vehicles sent by the plurality of clients 103. Mileage information, speed, mileage and tire pressure Corresponding relationship; determining, according to the corresponding relationship between the speed, the mileage and the tire pressure, whether the tire pressure of the current vehicle is abnormal; when the tire pressure of the current vehicle is abnormal, the client 103 corresponding to the current vehicle Send the tire pressure and/or alarm information.

For example, the tire wears during the running of the vehicle, and the degree of wear is usually proportional to the total mileage of the vehicle, while the same tire has different degrees of wear and the tire pressure is different; and the tire pressure is also It is easy to be affected by the surrounding environment and road conditions. Therefore, in actual application, during the running of the vehicle, the client 103 can also obtain the tire pressure, the traveling speed and the total mileage information of the current vehicle, and the tire pressure, the driving speed and the total The mileage information is sent to the cloud server 104. The cloud server 104 can be connected to multiple clients at the same time, and each client has a corresponding vehicle, so each client can acquire the tire pressure, the traveling speed and the total mileage information of the corresponding vehicle, so the cloud server 104 can obtain Different road surfaces, different positions, different vehicles, different driving speeds, and multiple tire pressures corresponding to different total mileage information. At this time, the cloud server 104 can perform statistical and big data analysis according to the acquired information to obtain speed, mileage and tire pressure. Correspondence relationship, the corresponding relationship reflects the corresponding relationship between different driving speeds, different total mileage information and different tire pressures. In this way, when the cloud server 104 acquires the tire pressure of the vehicle sent by the client 103, the corresponding reference tire may be obtained from the corresponding relationship according to the current position, the traveling speed, and the total mileage information of the vehicle. Pressing, and then determining the deviation between the tire pressure transmitted by the client 103 and the reference tire pressure. If the deviation is large, the tire pressure of the vehicle is abnormal, and the tire pressure and/or alarm information needs to be sent to the client 103; The deviation is small, indicating that the tire pressure of the vehicle is not abnormal.

An embodiment of the present invention provides a tire pressure monitoring system, including: a tire pressure sensor, a host connected to the tire pressure sensor, and a client wirelessly connected to the host; the host is provided with a long-term evolution Internet of Things LTE a -M module; the tire pressure sensor configured to detect a tire pressure of a vehicle tire and transmit the tire pressure to the host; the host configured to determine whether an abnormality of a tire pressure of the vehicle occurs; when the vehicle When the tire pressure is abnormal, the LTE-M module is used. The client transmits the tire pressure and/or alarm information. Compared with the prior art, if the vehicle engine is in the flameout state, it can first determine whether the tire pressure is abnormal, and only when the tire pressure is abnormal, the tire pressure or alarm information is sent, thereby reducing the data transmission frequency, thereby reducing the work. At the same time, due to the low power consumption and high delay of the LTE-M module, the LTE-M module is used to transmit the tire pressure or alarm information, which further reduces the power consumption when transmitting the tire pressure, thereby realizing the tire pressure under low power consumption. Monitoring, saving resources and avoiding the adverse effects caused by vehicle battery losses.

The embodiment of the present invention provides a tire pressure monitoring method, which is applied to a host, where the host is provided with a long-term evolution Internet of Things LTE-M module, as shown in FIG. 3, the method includes:

Step 301: Obtain a tire pressure of a vehicle tire.

For example, the main body may be coupled to a tire pressure sensor disposed on a tire of the vehicle and then receive the tire pressure of the tire transmitted by the tire pressure sensor. Specifically, the host may be connected to the tire pressure sensor in a wireless manner, or may be connected to the tire pressure sensor in a wired manner, which is not limited in this embodiment of the present invention.

Step 302: Determine whether an abnormality occurs in a tire pressure of the vehicle.

For example, the host can preset the standard tire pressure and the preset threshold. After receiving the tire pressure sent by the tire pressure sensor, it can first determine whether the difference between the tire pressure and the standard tire pressure is greater than or equal to a preset threshold. When the difference between the pressure and the standard tire pressure is greater than or equal to a preset threshold, the tire pressure is abnormal; when the difference between the tire pressure and the standard tire pressure is less than a preset threshold, it is determined that the tire pressure is not abnormal. Alternatively, the host can also preset the differential pressure threshold, and then obtain the maximum value and the minimum value of the tire pressure in the preset time period, determine the difference between the maximum value and the minimum value as the amount of change in the tire pressure in the preset time period, and then determine the change. Whether the quantity is greater than or equal to the preset pressure difference threshold, when the change amount is greater than or equal to the pressure difference threshold, determining that the tire pressure of the vehicle is abnormal; when the change amount is less than the pressure difference threshold, determining that the tire pressure of the vehicle is not abnormal.

Step 303: When the tire pressure of the vehicle is abnormal, the LTE-M module is used to send the tire pressure and/or alarm information to the client.

Optionally, the LTE-M module has the advantages of low power consumption, high delay, and the like, and the occupied bandwidth is small. Therefore, only a small amount of power is required to complete the data transmission.

As an embodiment, when the tire pressure of the vehicle does not abnormal, the LTE-M module is turned off.

Optionally, when the tire pressure of the vehicle is not abnormal, the LTE-M module can be turned off, that is, the host controls the power supply to stop supplying power to the module, so that the LTE-M module is in the sleep mode, further saving power; when the tire pressure of the vehicle appears When an abnormality occurs, the host controls the power supply to supply power to the module, and wakes up the LTE-M module, so that the LTE-M module accesses the network and sends data to the client.

Optionally, when the LTE-M module is used to send the tire pressure and/or alarm information to the client, the LTE-M module may be used to send the tire pressure and/or the alarm information to the cloud server. So that the cloud server sends the tire pressure and/or the alarm information to the client.

For example, the host may first send the tire pressure and/or alarm information to the cloud server by using the LTE-M module, and then forwarded to the client by the cloud server, so that the cloud server acquires the information of the vehicle for big data analysis.

An embodiment of the present invention provides a tire pressure monitoring method, which is applied to a host, where the host is provided with a long-term evolution Internet of Things LTE-M module, the method includes: acquiring a tire pressure of a vehicle tire; determining a tire pressure of the vehicle. Whether an abnormality occurs; when the tire pressure of the vehicle is abnormal, the LTE-M module is used to transmit the tire pressure and/or alarm information to the client. Compared with the prior art, if the engine of the vehicle is in a flameout state, it may first be determined whether the tire pressure is abnormal, and the tire pressure or alarm information is sent only when the tire pressure is abnormal, thereby reducing the data transmission frequency, and further The power consumption is reduced. At the same time, due to the low power consumption and high delay of the LTE-M module, the LTE-M module is used to transmit the tire pressure or alarm information, which further reduces the power consumption when transmitting the tire pressure, thereby achieving low power consumption. The tire pressure monitoring saves resources and avoids the adverse effects caused by the loss of the vehicle battery.

The embodiment of the invention provides a tire pressure monitoring method, which is applied to a cloud server, as shown in FIG. 4, and includes:

Step 401: Receive a tire pressure of a current vehicle sent by the host.

Optionally, when the vehicle tire pressure is abnormal, the host may send the tire pressure to the cloud server by using the LTE-M module.

Step 402: Receive vehicle type information and tire information of the current vehicle sent by the client.

Illustrative, due to the different normal tire pressures required by different types of vehicles. Different types of tires require different normal tire pressures. Therefore, when the client can acquire the vehicle type information and the tire information of the vehicle, the vehicle type information and the tire information are transmitted to the cloud server. The cloud server can obtain the normal range of the vehicle tire pressure of different models given by the manufacturer, and the normal range of the tire pressure of different tires. After the cloud server receives the vehicle type information and the tire information transmitted by the client, the normal tire pressure range corresponding to the vehicle type information and the tire information can be determined.

Step 403: Determine, according to the vehicle type information of the current vehicle and the tire information, whether an abnormality occurs in the tire pressure of the current vehicle.

For example, after the cloud server obtains the normal tire pressure range of the vehicle type information and the tire information, it may be determined whether the tire pressure sent by the host is within a normal tire pressure range, when the tire pressure is within the normal tire pressure range of the vehicle. , indicating that the tire pressure is not abnormal; when the tire pressure exceeds the normal tire pressure range corresponding to the vehicle, it indicates that the tire pressure is abnormal.

Step 404: Send the tire pressure and/or alarm information to the client when an abnormality occurs in the tire pressure of the current vehicle.

For example, when the tire pressure exceeds the normal tire pressure range corresponding to the vehicle, it indicates that the tire pressure is abnormal, and the tire pressure and/or alarm information needs to be sent to the client, so that the user can timely handle and avoid Avoid greater security risks.

In this way, since the vehicle type information and the tire information can be combined to determine whether the tire pressure of the vehicle is normal, the accuracy of the tire pressure detection is improved, and the misjudgment of the abnormal tire pressure is avoided.

As an implementation manner, the cloud server may further receive the tire pressure, the traveling speed, and the total mileage information of the corresponding vehicle sent by the multiple clients, according to the received tire pressure, the traveling speed, and the total number of the corresponding vehicles sent by the multiple clients. Mileage information, obtaining the corresponding relationship between the speed, the mileage and the tire pressure, and then determining whether the tire pressure of the current vehicle is abnormal according to the corresponding relationship between the speed, the mileage and the tire pressure, and appearing in the tire pressure of the current vehicle When abnormal, the tire pressure and/or the alarm information is sent to a client corresponding to the current vehicle.

For example, in an actual application, a cloud server can be connected to multiple clients at the same time, and each client has a corresponding vehicle, so each client can obtain the tire pressure, the traveling speed, and the total mileage information of the corresponding vehicle, so The cloud server can obtain multiple tire pressures corresponding to different road surfaces, different positions, different vehicles, different driving speeds, and different total mileage information. At this time, the cloud server can perform statistics and big data analysis according to the obtained information, and obtain the speed, Correspondence between mileage and tire pressure, this correspondence reflects the corresponding relationship between different driving speeds, different total mileage information and different tire pressures. In this way, when the cloud server acquires the tire pressure of the vehicle sent by the client, the corresponding reference tire pressure may be obtained from the corresponding relationship according to the current position, the traveling speed, and the total mileage information of the vehicle. Then determining the deviation between the tire pressure sent by the client and the reference tire pressure. If the deviation is large, the tire pressure of the vehicle is abnormal, and the tire pressure and/or alarm information needs to be sent to the client; Small, indicating that the tire pressure of the vehicle did not appear abnormal.

The embodiment of the present invention provides a tire pressure monitoring method, which is applied to a cloud server, comprising: receiving a tire pressure of a current vehicle sent by a host; receiving vehicle type information and tire information of the current vehicle sent by the client; Vehicle type information and tire information, determining whether the tire pressure of the current vehicle is abnormal; when the tire pressure of the current vehicle is abnormal, the customer is The tire sends the tire pressure and/or alarm information. Compared with the prior art, since the vehicle type information and the tire information can be combined to determine whether the tire pressure of the vehicle is normal, the accuracy of the tire pressure detection is improved, and the misjudgment of the tire pressure abnormality is avoided.

The embodiment of the invention further describes a computer storage medium, wherein the computer storage medium stores computer executable instructions for performing the tire pressure monitoring method described in the foregoing embodiments.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on the computer or other programmable device to produce the computer The implemented processing, such as instructions executed on a computer or other programmable device, provides steps for implementing the functions specified in one or more blocks of the flowchart or in a block or blocks of the flowchart.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Industrial applicability

In the embodiment of the present invention, the tire pressure monitoring system includes: a tire pressure sensor, a host connected to the tire pressure sensor, and a client wirelessly connected to the host; the host is provided with an LTE-M module; The tire pressure sensor is configured to detect a tire pressure of a vehicle tire and transmit the tire pressure to the host; the host is configured to determine whether an abnormality occurs in a tire pressure of the vehicle; when an abnormality occurs in a tire pressure of the vehicle The tire pressure and/or alarm information is sent to the client by using the LTE-M module. Thus, if the vehicle engine is in the flameout state, it can be first determined whether the tire pressure is abnormal, and the tire pressure or alarm information is sent only when the tire pressure is abnormal, which reduces the data transmission frequency, thereby reducing the power consumption; -M module has the characteristics of low power consumption and high delay. It uses LTE-M module to send tire pressure or alarm information, which further reduces the power consumption when sending tire pressure, thus achieving tire pressure monitoring under low power consumption and saving resources. , to avoid the adverse effects caused by the battery battery loss point.

Claims

A tire pressure monitoring system includes: a tire pressure sensor, a host connected to the tire pressure sensor, and a client wirelessly connected to the host; the host is provided with a long-term evolution Internet of Things LTE-M module;

The tire pressure sensor is configured to detect a tire pressure of a vehicle tire and transmit the tire pressure to the host;

The host is configured to determine whether an abnormality occurs in a tire pressure of the vehicle; and when an abnormality occurs in a tire pressure of the vehicle, the LTE-M module is used to send the tire pressure and/or alarm information to the client.
The system of claim 1 wherein the host is further configured to shut down the LTE-M module when an abnormality in the tire pressure of the vehicle does not occur.
The system according to claim 2, wherein the host is specifically configured to acquire a change amount of the tire air pressure in the preset time period, and determine whether the change amount is greater than or equal to a preset pressure difference threshold value; when the change amount is greater than Or equal to the pressure difference threshold, determining that an abnormality occurs in a tire pressure of the vehicle; and when the amount of change is less than the pressure difference threshold, determining that an abnormality occurs in a tire pressure of the vehicle.
The system according to any one of claims 1 to 3, wherein the host is further provided with a power source;

The host is further configured to determine whether the vehicle engine is in a flameout state, and the power source is used to power the host when the vehicle engine is in a flameout state.
A system according to any one of claims 1 to 3, wherein

The client is configured to send a host identifier and a verification password to the host;

The host is further configured to determine, according to the host identifier and the verification password, whether the client passes the verification; when the client passes the verification, and the tire pressure of the vehicle is abnormal, adopting the LTE- The M module sends the tire pressure and/or alarm information to the client.
A system according to any one of claims 1 to 3, wherein the system The system further includes a cloud server, and the host is wirelessly connected to the client through the cloud server;

The host is further configured to send the tire pressure and/or the alarm information to the cloud server by using the LTE-M module;

The cloud server is configured to send the tire pressure and/or the alert information to the client.
The system of claim 6 wherein

The client is further configured to send vehicle type information and tire information of the vehicle to the cloud server;

The cloud server is further configured to determine whether an abnormality occurs in a tire pressure of the vehicle according to the vehicle type information and the tire information; and when the tire pressure of the vehicle is abnormal, send the tire pressure to the client And/or the alarm information.
A system according to claim 6 or 7, wherein

The client is further configured to acquire the tire pressure, the traveling speed and the total mileage information of the current vehicle, and send the tire pressure, the traveling speed and the total mileage information of the current vehicle to the cloud server;

The cloud server is further configured to receive the tire pressure, the traveling speed and the total mileage information of the corresponding vehicle sent by the plurality of clients, according to the received tire pressure, the traveling speed and the total mileage information of the corresponding vehicle sent by the plurality of clients, Obtaining a correspondence relationship between the speed, the mileage and the tire pressure; determining, according to the corresponding relationship between the speed, the mileage and the tire pressure, whether the tire pressure of the current vehicle is abnormal; when the tire pressure of the current vehicle is abnormal, The client corresponding to the current vehicle transmits the tire pressure and/or alarm information.
A tire pressure monitoring method is applied to a host, and the host is provided with a long-term evolution Internet of Things LTE-M module, and the method includes:

Obtaining the tire pressure of the vehicle tire;

Determining whether the tire pressure of the vehicle is abnormal;

When the tire pressure of the vehicle is abnormal, the LTE-M module is used to send the client to the client. Describe tire pressure and / or alarm information.
The method of claim 9, wherein after the determining whether the tire pressure of the vehicle is abnormal, the method further comprises:

When the tire pressure of the vehicle does not abnormal, the LTE-M module is turned off.
The method of claim 10, wherein the determining whether the tire pressure of the vehicle is abnormal comprises:

Obtaining the amount of change in tire pressure during the preset time period;

Determining whether the amount of change is greater than or equal to a preset pressure difference threshold;

Determining that an abnormality occurs in a tire pressure of the vehicle when the amount of change is greater than or equal to the threshold of the pressure difference;

When the amount of change is less than the pressure difference threshold, it is determined that the tire pressure of the vehicle is not abnormal.
The method according to any one of claims 9 to 11, wherein the transmitting the tire pressure and/or alarm information to the client by using the LTE-M module comprises:

The tire pressure and/or the alarm information is sent to the cloud server by using the LTE-M module, so that the cloud server sends the tire pressure and/or the alarm information to the client.
A tire pressure monitoring method applied to a cloud server, comprising:

Receiving the tire pressure of the current vehicle sent by the host;

Receiving vehicle type information and tire information of the current vehicle sent by the client;

Determining whether an abnormality occurs in the tire pressure of the current vehicle according to the vehicle type information and the tire information of the current vehicle;

The tire pressure and/or alarm information is sent to the client when an abnormality occurs in the tire pressure of the current vehicle.
The method of claim 13 wherein the method further comprises:

Receiving tire pressure, traveling speed and total mileage information of corresponding vehicles sent by multiple clients;

According to the received tire pressure, travel speed and total mileage of the corresponding vehicles sent by multiple clients Information, the correspondence between speed, mileage and tire pressure;

Determining whether the tire pressure of the current vehicle is abnormal according to the corresponding relationship between the speed, the mileage and the tire pressure;

When the tire pressure of the current vehicle is abnormal, the tire pressure and/or the alarm information is sent to a client corresponding to the current vehicle.
A computer storage medium having stored therein computer executable instructions for performing the method of any one of claims 9 to 12, and/or claim 13 or 14 The method of any of the preceding claims.