WO2018018789A1

WO2018018789A1 - Data transmission method and vehicle-mounted equipment

Info

Publication number: WO2018018789A1
Application number: PCT/CN2016/105790
Authority: WO
Inventors: 刘均; 刘新; 宋朝忠; 欧阳张鹏
Original assignee: 深圳市元征科技股份有限公司
Priority date: 2016-07-28
Filing date: 2016-11-14
Publication date: 2018-02-01
Also published as: CN106230933A

Abstract

Disclosed in the embodiment of the present invention are a data transmission method and vehicle-mounted equipment. The method comprises: the vehicle-mounted equipment sends a prompt message to a control terminal, the vehicle-mounted equipment and the control terminal being in a cellular network-based narrow band Internet of things (NB-loT); the vehicle-mounted equipment receives a state control message sent by the control terminal according to the prompt message; and the vehicle-mounted equipment executes an operation indicated by the state control message. Use of the present invention renders communication between the vehicle-mounted equipment and the control terminal more flexible and efficient.

Description

Invention name: A data transmission method and an in-vehicle device

[0001] The present invention claims the priority of the prior application of the application No. 201610612697.7, entitled "A Data Transmission Method and On-Board Device", filed on July 28, 2016, the contents of which are incorporated herein by reference. In this article.

Technical Field

The present invention relates to the field of computer technologies, and in particular, to a data transmission method and an in-vehicle device.

BACKGROUND OF THE INVENTION

[0005] Cellular-based Narrow Band Internet of Things (NB-IoT) standard was officially announced in September 2015 by the 3rd Generation Partnership Project (English: 3rd Generation Partnership Project, 3GPP) Project. ΝΒ-Ι0Τ is an emerging technology that can be widely used around the world, focusing on the low power wide area (English: Low Power Wide Area, LPWA) Internet of Things (English: Internet Of Things, referred to as: IOT) market It has wide coverage, many connections, low speed, low cost, low power consumption and excellent architecture. It can be widely used in vertical industries such as remote meter reading, asset tracking, intelligent parking, and smart agriculture.

[0006] NB-IoT defines a lot of resource units for 15 kHz subcarriers, and is no longer limited to the resource unit of {12 subcarriers, 1 millisecond} defined in Long Term Evolution (LTE: LTE), so as to be more flexible. Allocate the frequency resources of various resource units. As shown in Figure 1, the resource units defined in NB-IoT include: {1 subcarrier, 8 milliseconds} resource unit 101, {3 subcarriers, 4 milliseconds} resource unit 1 02, {6 subcarriers, 2 milliseconds Resource unit 103 of } and {12 subcarriers, 1 millisecond} resource unit 104

[0007] How to use the frequency resource of resource units of various specifications in the NB-IoT is a problem that those skilled in the art are studying.

SUMMARY OF THE INVENTION

[0009] Embodiments of the present invention disclose a data transmission method and an in-vehicle device, and the in-vehicle device and the control terminal can communicate based on the NB-IoT, so that communication between the in-vehicle device and the control terminal is more flexible and efficient. . [0010] In a first aspect, an embodiment of the present invention provides a data transmission method, where the method includes:

[0011] the in-vehicle device sends a prompt message to the control terminal, where the in-vehicle device and the control terminal are in a cellular-based narrowband Internet of Things NB-IoT;

[0012] the in-vehicle device receives a status control message sent by the control terminal according to the prompt message; [0013] the in-vehicle device performs an operation indicated by the status control message.

[0014] In combination with the first aspect, in a first possible implementation manner of the first aspect, the sending, by the in-vehicle device, a prompt message to the control terminal includes:

[0015] The in-vehicle device determines whether the current state of the vehicle reaches a preset dangerous state;

[0016] if the state of the in-vehicle device reaches the preset dangerous state, the in-vehicle device sends a danger prompt message to the control terminal on the frequency resource of the target resource unit, so that the control terminal is remotely Adjusting the state of the in-vehicle device;

[0017] the in-vehicle device receives a status control message sent by the control terminal according to the prompt message, including

[0018] The in-vehicle device receives a status control message sent by the control terminal on a frequency resource whose specification is the target resource unit.

[0019] By performing the above steps, the in-vehicle device determines whether it is in a dangerous state, and if so, the in-vehicle device sends a danger prompt message to the control terminal on the frequency resource whose specification is the target resource unit, and accordingly, the control terminal After receiving the danger prompt message, the status control message is sent on the frequency resource of the target resource unit, so that the control terminal controls the in-vehicle device after the in-vehicle device is in a dangerous state.

[0020] In conjunction with the first possible implementation of the first aspect, in a second possible implementation of the first aspect, the dangerous state comprises at least one of the following states:

[0021] the running speed of the in-vehicle device reaches a preset speed threshold;

[0022] the alcohol concentration in the in-vehicle device reaches a preset concentration threshold;

[0023] the driver in the in-vehicle device is not wearing a seat belt;

[0024] the eye fatigue of the driver in the in-vehicle device;

[0025] The in-vehicle device continuously travels for more than a preset driving threshold.

In combination with the first possible implementation of the first aspect, or the second possible implementation of the first aspect In a third possible implementation manner of the first aspect, the sending, by the in-vehicle device, the danger prompt message to the control terminal on the frequency resource of the target resource unit includes:

[0027] the in-vehicle device sends a danger prompt message to the base station in the NB-IoT, so that the base station forwards the danger prompt message to the control terminal on the frequency resource of the target resource unit and is the control terminal. The scheduling specification is a frequency resource of the target resource unit.

[0028] In conjunction with the first possible implementation of the first aspect, or the second possible implementation of the first aspect, or the third possible implementation of the first aspect, the fourth aspect in the first aspect In a possible implementation, the target resource unit is the shortest resource unit of the plurality of resource units of the NB-IoT.

[0029] In conjunction with the fourth possible implementation of the first aspect, in a fifth possible implementation manner of the first aspect, the multiple resource units include a size of {1 subcarrier, 8 milliseconds}, {3 At least two of the resource units of subcarriers, 4 milliseconds}, {6 subcarriers, 2 milliseconds} and {12 subcarriers, 1 millisecond}.

[0030] In a second aspect, an embodiment of the present invention provides an in-vehicle device, where the in-vehicle device includes:

[0031] a sending unit, configured to send a prompt message to the control terminal, where the in-vehicle device and the control terminal are in a cellular-based narrowband Internet of Things NB-IoT;

[0032] a receiving unit, configured to receive a status control message sent by the control terminal according to the prompt message;

[0033] an execution unit, configured to perform an operation indicated by the state control message.

[0034] With reference to the second aspect, in a first possible implementation manner of the second aspect, the sending unit includes: [0035] a determining subunit, configured to determine whether a current state of the user reaches a preset dangerous state;

[0036] a sending subunit, configured to send a danger prompt message to the control terminal on the frequency resource of the target resource unit in the determination result of the determining unit, so that the control terminal remotely adjusts the a state of the in-vehicle device, the in-vehicle device and the control terminal being in a cellular-based narrowband Internet of Things NB-IoT;

And [0037] the receiving unit is specifically configured to receive a state control message sent by the control terminal on a frequency resource of a target resource unit.

[0038] By running the above unit, the in-vehicle device determines whether it is in a dangerous state, and if so, the in-vehicle device sends a danger prompt message to the control terminal on the frequency resource whose specification is the target resource unit, and accordingly, the control terminal After receiving the danger message, the specification is the frequency of the target resource unit. The status control message is sent on the source, so that the control terminal controls the in-vehicle device after the in-vehicle device is in a dangerous state.

[0039] In conjunction with the first possible implementation of the second aspect, in a second possible implementation of the second aspect, the dangerous state comprises at least one of the following states:

[0040] the running speed of the in-vehicle device reaches a preset speed threshold;

[0041] the alcohol concentration in the in-vehicle device reaches a preset concentration threshold;

[0042] the driver in the in-vehicle device is not wearing a seat belt;

[0043] the driver's eyes in the in-vehicle device are tired;

[0044] The in-vehicle device continuously travels for more than a preset driving threshold.

[0045] In combination with the first possible implementation of the second aspect, or the second possible implementation of the second aspect, in a third possible implementation manner of the second aspect, the sending subunit is specifically used Sending a danger prompt message to the base station in the NB-Io T, so that the base station forwards the danger prompt message to the control terminal on the frequency resource of the target resource unit, and the scheduling specification for the control terminal is The frequency resource of the target resource unit.

[0046] In combination with the first possible implementation of the second aspect, or the second possible implementation of the second aspect, or the third possible implementation of the second aspect, the fourth aspect of the second aspect In a possible implementation, the target resource unit is the shortest resource unit of the plurality of resource units of the NB-IoT.

[0047] In conjunction with the fourth possible implementation of the second aspect, in a fifth possible implementation manner of the second aspect, the multiple resource units include a size of {1 subcarrier, 8 milliseconds}, {3 At least two of the resource units of subcarriers, 4 milliseconds}, {6 subcarriers, 2 milliseconds} and {12 subcarriers, 1 millisecond}.

[0048] In a third aspect, an embodiment of the present invention provides an in-vehicle device, where the in-vehicle device includes:

[0049] a processor, a memory, a transceiver, and a bus, wherein the bus is configured to implement connection communication between the processor, the memory, and the transceiver;

[0050] the program code is stored in the memory;

[0051] the memory is used to store a program;

[0052] The processor invokes a program in the memory for performing some or all of the steps in any of the methods of the first aspect of the embodiments of the present invention. [0053] By implementing the embodiment of the present invention, the in-vehicle device and the control terminal can communicate based on the NB-IoT, so that communication between the in-vehicle device and the control terminal is more flexible and efficient.

[0054] Further, the in-vehicle device determines whether the vehicle is in a dangerous state. If the vehicle-mounted device is in the vehicle, the in-vehicle device sends a danger prompt message to the control terminal on the frequency resource of the target resource unit, and accordingly, the control terminal receives the After the dangerous alert message, the status control message is sent on the frequency resource of the target resource unit, so that the control terminal controls the in-vehicle device after the in-vehicle device is in a dangerous state.

BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the prior art description will be briefly described below, and obviously, in the following description The drawings are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

1 is a schematic diagram of a scenario of multiple resource units defined in the NB-IoT in the prior art;

2 is a schematic flowchart of a data transmission method according to an embodiment of the present invention;

3 is a schematic structural diagram of an in-vehicle device according to an embodiment of the present invention;

4 is a schematic structural diagram of still another in-vehicle device according to an embodiment of the present invention.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

[0063] In the embodiment of the present invention, the in-vehicle device sends a prompt message to the control terminal. For example, the prompt message may be specifically a danger prompt message, and the in-vehicle device and the control terminal are in a cellular-based narrowband Internet of Things NB-IoT. That is, the in-vehicle device can communicate with the control terminal based on the NB-IoT; the in-vehicle device receives a status control message sent by the control terminal according to the prompt message; the in-vehicle device performs the The action indicated by the status control message. In the embodiment of the present invention, the in-vehicle device and the control terminal can communicate based on the NB-IoT, so that communication between the in-vehicle device and the control terminal is more flexible and efficient. In order to better understand the solution implemented by the present invention, the following combination The specific scenario is used to describe the solution of the embodiment of the present invention.

Referring to FIG. 2, FIG. 2 is a schematic flowchart of a data transmission method according to an embodiment of the present invention, where the method includes but is not limited to the following steps.

[0065] Step S201: The in-vehicle device determines whether the current state of the vehicle reaches a preset dangerous state.

[0066] Specifically, some states may be pre-defined as the dangerous state in advance, which will be exemplified below.

[0067] In an optional solution, the state in which the running speed of the in-vehicle device reaches a preset speed threshold is the dangerous state; in this case, the in-vehicle device first needs to acquire the current running speed value. And determining whether the speed value reaches a preset speed threshold. If the speed value reaches the speed threshold, the current state of the in-vehicle device is considered to be in a dangerous state; the speed threshold is higher than the speed of most users driving normally. High, for example, the speed threshold can be set to a value of 100 km/h, 120 km/h, and the like.

[0068] In another optional solution, the state in which the alcohol concentration in the in-vehicle device reaches a preset concentration threshold is the dangerous state; in this case, the in-vehicle device is configured to detect the alcohol concentration. The sensor, the in-vehicle device collects the alcohol concentration value in the cab through the sensor, and then determines whether the alcohol concentration value reaches the concentration threshold. If the alcohol concentration value reaches the concentration threshold, the current state of the in-vehicle device is considered to be in a dangerous state; The concentration threshold can be pre-configured according to actual conditions.

[0069] In still another optional solution, the state in which the driver in the in-vehicle device is not wearing the seat belt is the dangerous state; in this case, the in-vehicle device is configured with a camera or configured to sense the Whether the seat belt is fastened by the sensor, the in-vehicle device collects the information of the seat belt through the sensor, and then determines whether the user is attached to the seat belt based on the information, or captures the picture at the seat through the camera, and then the screen An analysis is performed to determine if the user is wearing a seat belt, and if the user is not wearing a seat belt, the in-vehicle device is currently considered to be in a dangerous state.

[0070] In still another optional solution, the state of the eye fatigue of the driver in the in-vehicle device is the first state; in this case, the camera can be configured on the in-vehicle device to collect the eye of the user. The information is then analyzed to determine if the user's eyes are tired. If the user's eyes are tired, the in-vehicle device is currently in a dangerous state.

[0071] In another optional solution, the state in which the in-vehicle device continuously travels beyond a preset driving threshold is the dangerous state; in this case, the in-vehicle device can be configured with a meter Recording the length of the continuous driving of the in-vehicle device, and then determining whether the length of the vehicle reaches the driving threshold, if the length of the vehicle is up to At this driving threshold, the in-vehicle device is considered to be in a dangerous state. The driving threshold can be preset according to needs, for example, setting the driving threshold to 10 hours, 15 hours, etc.

[0072] It should be noted that there are still many states that can be defined as the dangerous state, and the examples are not exemplified herein.

[0073] Step S202: If the state of the in-vehicle device reaches the preset dangerous state, the in-vehicle device sends a danger prompt message to the control terminal on the frequency resource of the target resource unit, so that the The control terminal remotely adjusts the state of the in-vehicle device.

[0074] Specifically, the in-vehicle device and the control terminal are in a cellular-based narrowband Internet of Things NB-IoT, and the resource unit of the frequency resource used for data transmission between each terminal device in the NB-IoT is There is room for choice. For example, the NB-IoT has specifications of {1 subcarrier, 8 milliseconds}, {3 subcarriers, 4 milliseconds}, {6 subcarriers, 2 milliseconds}, and {12 subcarriers, 1 millisecond}. Resource unit. If the resource unit of the frequency resource used by a device is {6 subcarriers, 2 milliseconds}, then the frequency domain length of the frequency resource is 6 subcarriers, and the length of the domain is 2 milliseconds. The resource unit of the specification is analogous.

[0075] when it is determined that the state of the in-vehicle device reaches the preset dangerous state, the in-vehicle device sends a danger prompt message to the control terminal associated with the in-vehicle device in advance, and the hazard message is specifically carried in the resource unit as a target The resource unit is sent on a frequency resource, and the target resource unit is one of multiple resource units in the NB-IoT. In an optional solution, the target resource unit is not the longest resource unit of the plurality of resource units. In still another alternative, the target resource unit is the shortest resource unit of the plurality of resource units. It can be understood that the hazard message is transmitted on the resource unit whose domain is shorter, and the shorter the time required for transmission, the shorter the time is, and the dangerous message can be sent to the control terminal more quickly.

[0076] In an optional solution, the in-vehicle device sends a danger prompt message to the control terminal on the frequency resource of the target resource unit, specifically: the in-vehicle device sends the base station to the base station in the NB-IoT. And displaying, by the base station, the danger prompt message to the control terminal on the frequency resource of the target resource unit, and scheduling the frequency resource of the target resource unit for the control terminal. That is to say, the embodiment of the present invention does not limit the resource unit of the frequency resource used by the in-vehicle device to send the danger prompt message to the base station in the NB-IoT, but requires the base station to forward the danger prompt message to the control terminal. The resource unit of the 吋 frequency resource used by 吋 is the target resource unit. Peer The station also schedules, for the control terminal, the resource unit as the frequency resource of the target resource unit, so that the control terminal subsequently sends a response message to the dangerous prompt message on the frequency resource whose resource unit is the target resource unit.

[0077] The control terminal can be a mobile phone, a tablet, a laptop, a palmtop, a mobile internet device

(English: mobile internet

Device, referred to as: MID), wearable devices (such as smart watches (such as iWatch, etc.), smart bracelets, pedometers, etc.) or other terminal devices that can be installed to deploy the instant messaging application client.

[0078] Step S203: The control terminal receives the danger prompt message.

[0079] Specifically, the control terminal sends a prompt to the user after receiving the danger prompt message, and the user thus knows that the in-vehicle device has reached a dangerous state. Accordingly, the user can operate the control terminal to generate a status control message for remote control of the in-vehicle device. When there are multiple defects in the pre-configured dangerous state, the hazard message may also indicate which of the plurality of dangerous states the in-vehicle device is in a dangerous state, so that the user can perform different treatments for different dangerous states.

[0080] For example, the control terminal is configured with a ringing device and a touch display screen, and the control terminal vibrates through the ringing device after receiving the danger prompt message, and the user senses the vibration of the control terminal to obtain the The vehicle equipment is in a dangerous state. Simultaneously, the touch display screen displays a plurality of operations for the user to select, and the user can click one of the (or some) operations. When the user clicks on an operation, the control terminal generates a state control message based on the operation clicked by the user. The status control message is used to indicate that the in-vehicle device that subsequently receives the status control message performs a user click operation.

[0081] For example, the control terminal is configured with an audio device and a touch display screen. After receiving the danger prompt message, the control terminal sends a prompt sound through the audio device, and the user hears the prompt sound sent by the control terminal. It can be known that the in-vehicle device is in a dangerous state. Simultaneously, the touch display screen displays a plurality of operations for the user to select, and the user can click one of the (or some) operations. When the user clicks on an operation, the control terminal generates a state control message based on the operation clicked by the user. The status control message is used to indicate that the in-vehicle device that subsequently receives the status control message performs a user click operation.

[0082] For example, the control terminal is configured with a light device and a touch display screen. After receiving the danger prompt message, the control terminal sends a flashing light through the light device, and the user sees a light prompt issued by the control terminal. It can be known that the in-vehicle device is in a dangerous state. How many more are displayed on the touch screen? The user can select one of the operations (or some), and when the user clicks on an operation, the control terminal generates a status control message based on the operation clicked by the user, and the status control message is used to indicate that the user subsequently receives the The in-vehicle device of the status control message performs a user click operation.

[0083] For example, the control terminal is configured with a touch display screen, and after receiving the danger prompt message, the control terminal pops up a pop-up window through the touch display screen, and the user can see the pop-up window displayed by the touch display screen. It is known that the in-vehicle device is in a dangerous state. Simultaneously, the touch display screen displays a plurality of operations for the user to select, and the user can click one of the (or some) operations. When the user clicks on an operation, the control terminal generates a state control message based on the operation clicked by the user. The status control message is used to indicate that the in-vehicle device that subsequently receives the status control message performs a user click operation.

[0084] It can be understood that the manner in which the control terminal sends a prompt to the user after receiving the danger prompt message may be other manners, for example, by outputting a text, an image, an animation, or the like to issue a prompt, where the prompt mode is not used. Limited.

[0085] Step S204: The control terminal sends a status control message to the in-vehicle device on the frequency resource whose resource unit is the target resource unit.

[0086] Step S205: The in-vehicle device receives a state control message sent by the control terminal on a frequency resource whose specification is the target resource unit.

[0087] Step S206: The in-vehicle device performs an operation indicated by the status control message.

[0088] Specifically, why the operation indicated by the status control message is not limited herein, and optionally, the operation may be to broadcast a voice prompt, decelerate the vehicle device, turn off the engine of the vehicle device, and the like.

[0089] In the method described in FIG. 2, the in-vehicle device and the control terminal can communicate based on the NB-IoT, so that communication between the in-vehicle device and the control terminal is more flexible and efficient.

[0090] Further, the in-vehicle device determines whether it is in a dangerous state, and if it is in the vehicle, the in-vehicle device sends a danger prompt message to the control terminal on the frequency resource whose specification is the target resource unit, and accordingly, the control terminal receives After the dangerous alert message, the status control message is sent on the frequency resource of the target resource unit, so that the control terminal controls the in-vehicle device after the in-vehicle device is in a dangerous state.

The method of the embodiments of the present invention has been described in detail above. In order to facilitate the better implementation of the above embodiments of the embodiments of the present invention, correspondingly, the apparatus of the embodiments of the present invention is provided below. Referring to FIG. 3, FIG. 3 is a schematic structural diagram of an in-vehicle device 30 according to an embodiment of the present invention. The in-vehicle device 30 may include a sending unit 301, a receiving unit 302, and an executing unit 303, where details of each unit are used. Described as follows.

[0093] The sending unit 301 is configured to send a prompt message to the control terminal, where the in-vehicle device and the control terminal are in a cellular-based narrowband Internet of Things NB-IoT;

The receiving unit 302 is configured to receive a status control message that is sent by the control terminal according to the prompt message. [0095] The executing unit 303 is configured to perform an operation indicated by the status control message.

[0096] In an optional solution, the sending unit 301 includes:

[0097] a determining subunit, configured to determine whether the current state of the self reaches a preset dangerous state;

[0098] a sending subunit, configured to send a danger prompt message to the control terminal on the frequency resource of the target resource unit in the determination result of the determining subunit, so that the control terminal remotely adjusts the location State of the in-vehicle device 30, the in-vehicle device 30 and the control terminal are in a cellular-based narrowband Internet of Things NB-IoT;

The receiving unit 302 is specifically configured to receive a state control message that is sent by the control terminal on a frequency resource whose specification is the target resource unit.

[0100] By running the above unit, the in-vehicle device 30 determines whether it is in a dangerous state, and if so, the in-vehicle device 30 transmits a danger prompt message to the control terminal on the frequency resource whose specification is the target resource unit, and accordingly, the After receiving the danger prompt message, the control terminal sends a status control message on the frequency resource of the target resource unit, so that the control terminal controls the in-vehicle device 30 after the in-vehicle device 30 is in a dangerous state.

[0101] In still another optional aspect, the dangerous state comprises at least one of the following states:

[0102] The running speed of the in-vehicle device 30 reaches a preset speed threshold;

[0103] The alcohol concentration in the in-vehicle device 30 reaches a preset concentration threshold;

[0104] The driver in the in-vehicle device 30 is not wearing a seat belt;

[0105] The driver's eyes in the in-vehicle device 30 are tired;

[0106] The in-vehicle device 30 continuously travels for more than a preset driving threshold.

[0107] In another optional solution, the sending subunit is specifically configured to send a hazard prompt message to a base station in the NB-IoT, so that the base station is on a frequency resource whose standard is a target resource unit. Control terminal forwarding The danger prompt message and a scheduling resource for the control terminal are the frequency resource of the target resource unit.

[0108] In still another optional solution, the target resource unit is the shortest resource unit of the plurality of resource units of the NB-IoT.

[0109] In still another optional solution, the multiple resource units include a specification of {

1 subcarrier, 8 ms }, {3 subcarriers, 4 ms }, {6 subcarriers, 2 ms } and { 12 subcarriers

, 1 millisecond } at least two of the resource units.

[0110] It should be noted that, in the embodiment of the present invention, the specific implementation of each unit may also correspond to the corresponding description of the method embodiment shown in FIG. 2 .

[0111] In the in-vehicle device 30 depicted in FIG. 3, the in-vehicle device 30 and the control terminal can communicate based on the NB-IoT such that communication between the in-vehicle device and the control terminal is more flexible and efficient.

[0112] Further, the in-vehicle device 30 determines whether it is in a dangerous state, and if so, the in-vehicle device 30 sends a danger prompt message to the control terminal on the frequency resource of the target resource unit, correspondingly

After receiving the danger prompt message, the control terminal sends a status control message on the frequency resource of the target resource unit, so that the control terminal controls the in-vehicle device 30 after the in-vehicle device 30 is in a dangerous state. .

Referring to FIG. 4, FIG. 4 is an in-vehicle device 40 according to an embodiment of the present invention. The in-vehicle device 40 includes a processor 401. The number of processors 401 may be one or more, and one in FIG. The processor is an example), the memory 402, and the transceiver 403 (which may include a radio frequency module, an antenna, etc.). In some embodiments of the present invention, the processor 401, the memory 402, and the transceiver 403 may be connected by a bus or other means. 4 is based on the bus connection as an example.

[0114] the memory 402 is configured to store a program;

[0115] The processor 401 calls a program in the memory 402 to perform the following operations:

[0116] sending, by the transceiver 403, a prompt message to the control terminal, where the in-vehicle device and the control terminal are in a cellular-based narrowband Internet of Things NB-IoT;

[0117] receiving, by the transceiver 403, a status control message sent by the control terminal according to the prompt message.

[0118] Performing the operation indicated by the status control message. [0119] In an optional solution, the processor 401 sends a prompt message to the control terminal by using the transceiver 403, specifically:

[0120] determining whether the current state of the in-vehicle device 40 reaches a preset dangerous state;

[0121] If the state of the in-vehicle device 40 reaches the preset dangerous state, the transceiver 403 sends a danger prompt message to the control terminal on the frequency resource of the target resource unit, so that the control terminal Remotely adjusting the state of the in-vehicle device 40;

[0122] The processor 401 receives, by using the transceiver 403, a status control message that is sent by the control terminal according to the prompt message, specifically:

[0123] The state control message sent by the control terminal on the frequency resource of the target resource unit is received by the transceiver 403.

[0124] By performing the above operation, the in-vehicle device 40 determines whether it is in a dangerous state, and if so, the in-vehicle device 40 transmits a danger prompt message to the control terminal on the frequency resource of the target resource unit, correspondingly, After receiving the danger prompt message, the control terminal sends a status control message on the frequency resource of the target resource unit, so that the control terminal controls the in-vehicle device 40 after the in-vehicle device 40 is in a dangerous state.

[0125] In still another optional aspect, the dangerous state includes at least one of the following states:

[0126] The running speed of the in-vehicle device 40 reaches a preset speed threshold;

[0127] The alcohol concentration in the in-vehicle device 40 reaches a preset concentration threshold;

[0128] The driver in the in-vehicle device 40 is not wearing a seat belt;

[0129] The driver's eyes in the in-vehicle device 40 are tired;

[0130] The in-vehicle device 40 continuously travels for more than a preset driving threshold.

In another optional solution, the processor 401 sends a danger prompt message to the control terminal by using the transceiver 403 on the frequency resource of the target resource unit, specifically:

[0132] transmitting, by the transceiver 403, a danger prompt message to the base station in the NB-IoT, so that the base station forwards the danger prompt message to the control terminal on the frequency resource of the target resource unit and is the control terminal. The scheduling specification is a frequency resource of the target resource unit.

[0133] In an optional solution, the target resource unit is the shortest resource unit of the plurality of resource units of the NB-IoT. [0134] In still another optional solution, the multiple resource units include a specification of {

, 1 millisecond } at least two of the resource units.

[0135] It should be noted that, in the embodiment of the present invention, the specific implementation of each unit may also correspond to the corresponding description of the method embodiment shown in FIG. 2 .

[0136] In the in-vehicle device 40 depicted in FIG. 4, the in-vehicle device 40 and the control terminal can communicate based on the NB-IoT such that communication between the in-vehicle device and the control terminal is more flexible and efficient.

[0137] Further, the in-vehicle device 40 determines whether it is in a dangerous state, and if so, the in-vehicle device 40 sends a danger prompt message to the control terminal on the frequency resource whose specification is the target resource unit, and accordingly, the control terminal After receiving the danger prompt message, the status control message is sent on the frequency resource of the target resource unit, so that the control terminal controls the in-vehicle device 40 after the in-vehicle device 40 is in a dangerous state.

[0138] In summary, by implementing the embodiments of the present invention, the in-vehicle device and the control terminal can communicate based on the NB-IoT, so that communication between the in-vehicle device and the control terminal is more flexible and efficient.

[0139] Further, the in-vehicle device determines whether it is in a dangerous state, and if it is in the vehicle, the in-vehicle device sends a danger prompt message to the control terminal on the frequency resource whose specification is the target resource unit, and accordingly, the control terminal receives After the dangerous alert message, the status control message is sent on the frequency resource of the target resource unit, so that the control terminal controls the in-vehicle device after the in-vehicle device is in a dangerous state.

[0140] Those skilled in the art can understand that all or part of the process of implementing the above embodiments may be completed by a computer program to instruct related hardware, and the program may be stored in a computer readable storage medium. The program, after execution, may include the flow of an embodiment of the methods as described above. The foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

The above embodiments are only illustrative of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and those skilled in the art can understand the implementation of all or part of the above embodiments, and according to the present invention. The equivalent changes required are still within the scope of the invention.

technical problem The solution to the problem is the beneficial effect of the invention

Claims

Claim

[Claim 1] A data transmission method, comprising:

The in-vehicle device sends a prompt message to the control terminal, where the in-vehicle device and the control terminal are in a cellular-based narrowband Internet of Things NB-IoT;

Receiving, by the in-vehicle device, a status control message sent by the control terminal according to the prompt message;

The in-vehicle device performs an operation indicated by the status control message.

[Claim 2] The method according to claim 1, wherein the in-vehicle device sends a prompt message to the control terminal, including:

The in-vehicle device determines whether the current state of the vehicle reaches a preset dangerous state;

If the state of the in-vehicle device reaches the preset dangerous state, the in-vehicle device sends a danger prompt message to the control terminal on the frequency resource of the target resource unit, so that the control terminal remotely adjusts the The status of the in-vehicle device; the in-vehicle device receiving the status control message sent by the control terminal according to the prompt message, including:

The in-vehicle device receives a status control message sent by the control terminal on a frequency resource of a specification of the target resource unit.

[Claim 3] The method according to claim 2, wherein the dangerous state comprises at least one of the following states:

The running speed of the in-vehicle device reaches a preset speed threshold; the alcohol concentration in the in-vehicle device reaches a preset concentration threshold; the driver in the in-vehicle device is not wearing a seat belt;

The driver's eyes are fatigued in the in-vehicle device;

The in-vehicle device continuously travels for more than a preset driving threshold.

[Claim 4] The method according to claim 2 or 3, wherein the in-vehicle device is in a specification Sending the danger prompt message to the control terminal on the frequency resource of the target resource unit includes: sending, by the in-vehicle device, a danger prompt message to the base station in the NB-IoT, so that the base station is on the frequency resource of the target resource unit And the control terminal forwards the danger prompt message and schedules, for the control terminal, a frequency resource of the target resource unit.

[Claim 5] The method according to any one of claims 2 to 4, wherein the target resource unit is the shortest resource unit of the plurality of resource units of the NB-IoT.

[Claim 6] An in-vehicle device, comprising:

a sending unit, configured to send a prompt message to the control terminal, where the in-vehicle device and the control terminal are in a cellular-based narrowband Internet of Things NB-IoT;

a receiving unit, configured to receive a status control message sent by the control terminal according to the prompt message;

An execution unit, configured to perform an operation indicated by the state control message.

[Claim 7] The in-vehicle device according to claim 6, wherein the sending unit comprises: a determining subunit, configured to determine whether a current state of the user reaches a preset dangerous state; After the determination result of the determining unit is 吋, sending a danger prompt message to the control terminal on the frequency resource of the target resource unit, so that the control terminal remotely adjusts the state of the in-vehicle device;

The receiving unit is specifically configured to receive a state control message that is sent by the control terminal on a frequency resource whose specification is the target resource unit.

[Claim 8] The in-vehicle device according to claim 7, wherein the dangerous state includes at least one of the following states:

The running speed of the in-vehicle device reaches a preset speed threshold; the alcohol concentration in the in-vehicle device reaches a preset concentration threshold; the driver in the in-vehicle device is not wearing a seat belt; The driver's eyes are fatigued in the in-vehicle device;

The vehicular device according to claim 7 or 8, wherein the transmitting subunit is specifically configured to send a danger prompt message to a base station in the NB-IoT, so that the base station is in a target And transmitting, by the resource unit, the dangerous frequency message to the control terminal, and scheduling, for the control terminal, a frequency resource of the target resource unit.

The in-vehicle device according to any one of claims 7 to 9, wherein the target resource unit is the shortest resource unit of the plurality of resource units of the NB-IoT.

[Claim 11] An in-vehicle device, comprising:

a processor, a memory, a transceiver, and a bus, wherein the bus is configured to implement connection communication between the processor, the memory, and the transceiver;

Program code is stored in the memory;

The memory is used to store a program;

The processor invokes a program in the memory for performing the method as described in any of claims 1-5.