Vehicle emergency call method and system, electronic equipment and storage medium

Abstract

The invention provides a vehicle emergency call method and system, electronic equipment and a storage medium, the method is applied to the vehicle emergency call system comprising an emergency call device and a standby voice call device, and the method comprises the following steps: the emergency call device responds to an emergency call event, and checks whether the emergency call device has a call fault; in response to the fact that the emergency call device has the call fault, the emergency call device initiates sleep awakening on the standby voice communication device in a sleep state in a Bluetooth awakening mode or in a key awakening mode by the standby voice communication device; and under the condition that the standby voice communication device is successfully awakened, the standby voice communication device establishes a voice communication link with the emergency call device through Bluetooth, so that a driver and passengers can make an emergency call through the standby voice communication device. Through the method, the stability of the vehicle emergency call is improved, and the safety of the vehicle is further improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle emergency calls, and in particular to a vehicle emergency call method, system, electronic device and storage medium. Background Art

[0002] Vehicle Emergency Call (eCall) technology is of great significance in improving road safety. It can automatically send a distress signal to emergency services when an accident occurs and provide the vehicle's accurate location and information, shortening the rescue response time. Especially when the driver is unable to actively call for help, it can effectively reduce the casualties of traffic accidents, improve the efficiency of accident handling, and ensure the timeliness of medical assistance.

[0003] At present, the vehicle emergency call function is mainly achieved through the telematics box (Tbox) in the vehicle with an external microphone and speaker, and through a wiring harness connection to complete the audio reception and external playback functions of the emergency call. When the car has an accident or malfunctions, the wiring harness and connector are likely to be damaged, making the audio input function or the audio external playback function invalid, so that the people in the car cannot make voice calls with the outside world while they can speak and hear normally, which reduces the stability of the vehicle emergency call and thus reduces the safety of the vehicle. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a vehicle emergency call method, system, electronic device and storage medium. In response to an externally triggered emergency call event and a call failure in the emergency call device, a sleep wake-up is initiated for a backup voice call device in a dormant state through Bluetooth wake-up or button wake-up, and after the backup voice call device is successfully woken up, a voice call link is established between the backup voice call device and the emergency call device through Bluetooth, so that the driver and passengers can make an emergency call through the backup voice call device and use the voice call link, thereby giving full play to the role of the vehicle's emergency call function, improving the stability of the vehicle's emergency call, and thereby improving the safety of the vehicle.

[0005] The embodiment of the present application provides a vehicle emergency call method, which is applied to a vehicle emergency call system, wherein the vehicle emergency call system includes an emergency call device and a backup voice call device; wherein the emergency call device establishes a communication connection with the backup voice call device via Bluetooth, and the method includes:

[0006] In response to an externally triggered emergency call event, the emergency call device checks whether there is a call failure in the emergency call device;

[0007] In response to determining that the emergency call device has a call failure, the emergency call device initiates a sleep wake-up of the standby voice call device in a sleep state by waking it up via Bluetooth or by waking it up by a key.

[0008] When the backup voice call device is successfully awakened, the backup voice call device establishes a voice call link with the emergency call device via Bluetooth, so that the driver and passengers can make an emergency call through the backup voice call device and use the voice call link.

[0009] Further, the step of checking whether the emergency call device has a call failure in response to an externally triggered emergency call event by the emergency call device includes:

[0010] The emergency call device responds to an externally triggered emergency call event by using a preset test tone to check a microphone and a speaker provided in the emergency call device, and obtains a check result;

[0011] Based on the inspection result, it is determined whether the emergency call device has a call failure.

[0012] Furthermore, the backup voice call device includes a Bluetooth onboard antenna, a button module and a microcontroller; the method of waking up the backup voice call device in a dormant state by the emergency call device through Bluetooth or by the backup voice call device through a button, includes:

[0013] The emergency call device sends a Bluetooth wake-up signal to the microcontroller through the Bluetooth onboard antenna, so as to initiate a sleep wake-up of the standby voice call device in a sleep state through Bluetooth wake-up, and obtain device status data of the standby voice call device;

[0014] Based on the device status data, checking whether the standby voice call device is successfully awakened by the Bluetooth wake-up;

[0015] If the backup voice call device fails to be awakened by the Bluetooth wake-up, the microcontroller controls the button module to press and hold for a preset time to initiate sleep awakening of the backup voice call device in sleep state by button awakening.

[0016] Furthermore, the backup voice call device further includes an audio input module and an audio output module; the backup voice call device establishes a voice call link with the emergency call device via Bluetooth, so that the driver and passengers can make an emergency call through the backup voice call device and using the voice call link, including:

[0017] The backup voice call device establishes a connection with a network module disposed in the emergency call device through the Bluetooth onboard antenna to establish a voice call link between the backup voice call device and the emergency call device;

[0018] In response to the audio input module receiving the externally input emergency call audio, the microcontroller sends the emergency call audio to the emergency call device using the voice call link;

[0019] In response to the emergency call device receiving an externally input call answering audio, the emergency call device sends the call answering audio to the microcontroller using the voice call link;

[0020] The microcontroller sends the call answering audio to the audio output module so that the call answering audio is played outwardly through the audio output module.

[0021] The embodiment of the present application also provides a vehicle emergency call system, the vehicle emergency call system comprising:

[0022] The emergency call device is used to check whether the emergency call device has a call failure in response to an externally triggered emergency call event; in response to determining that the emergency call device has a call failure, initiate a sleep wake-up of the standby voice call device in a sleep state by Bluetooth wake-up;

[0023] The backup voice call device is used to initiate sleep wake-up of the backup voice call device in a dormant state by pressing a button in response to determining that the emergency call device has a call failure; when the backup voice call device is successfully awakened, a voice call link with the emergency call device is established via Bluetooth, so that the driver and passengers can make an emergency call through the backup voice call device and utilize the voice call link.

[0024] Furthermore, the backup voice call device includes a Bluetooth onboard antenna, a key module and a microcontroller; wherein the microcontroller is used for:

[0025] The Bluetooth wake-up signal sent by the emergency call device is received through the Bluetooth onboard antenna; the button module is controlled to be pressed and maintained for a preset time, so as to initiate a sleep wake-up of the standby voice call device in a sleep state by a button wake-up method.

[0026] Furthermore, the backup voice call device further includes an audio input module and an audio output module; wherein the Bluetooth onboard antenna is used for:

[0027] Establishing a connection with a network module disposed in the emergency call device to establish a voice call link between the backup voice call device and the emergency call device;

[0028] The audio input module is used to: receive emergency call audio input from the outside;

[0029] The microcontroller is also used to: send the emergency call audio to the emergency call device using the voice call link; send the call response audio sent by the emergency call device using the voice call link to the audio output module;

[0030] The audio output module is used to play the call answering audio externally.

[0031] Furthermore, the backup voice call device also includes a power supply module, which is used to process the voltage of the vehicle power supply and supply power to the microcontroller.

[0032] An embodiment of the present application also provides an electronic device, comprising: a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate through the bus, and when the machine-readable instructions are executed by the processor, the steps of the vehicle emergency call method as described above are performed.

[0033] An embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the vehicle emergency call method as described above are executed.

[0034] The vehicle emergency call method, system, electronic device and storage medium provided in the embodiments of the present application are applied to a vehicle emergency call system, wherein the vehicle emergency call system includes an emergency call device and a backup voice call device; wherein the emergency call device establishes a communication connection with the backup voice call device via Bluetooth, and the method includes: the emergency call device responds to an externally triggered emergency call event, checking whether the emergency call device has a call failure; in response to determining that the emergency call device has a call failure, the emergency call device initiates a sleep wake-up of the backup voice call device in a dormant state via a Bluetooth wake-up method or a key wake-up method by the backup voice call device; when the backup voice call device is successfully awakened, the backup voice call device establishes a voice call link with the emergency call device via Bluetooth, so that the driver and passengers can make an emergency call through the backup voice call device and use the voice call link.

[0035] Compared with the method in the prior art of using a remote information processing box in the vehicle in conjunction with an external microphone and speaker and connecting through a wiring harness to complete the audio reception and external playback functions of emergency calls, in the case of an externally triggered emergency call event and a call failure in the emergency call device, a sleep wake-up is initiated for the backup voice call device in sleep mode through Bluetooth wake-up or button wake-up, and after the backup voice call device is successfully woken up, a voice call link is established between the backup voice call device and the emergency call device through Bluetooth, so that the driver and passengers can make an emergency call through the backup voice call device and use the voice call link, thereby giving full play to the vehicle's emergency call function, improving the stability of the vehicle's emergency call, and thereby improving the safety of the vehicle.

[0036] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 A flow chart of a vehicle emergency call method provided in an embodiment of the present application;

[0039] Figure 2 One of the structural schematic diagrams of a vehicle emergency call system provided in an embodiment of the present application;

[0040] Figure 3 A second structural diagram of a vehicle emergency call system provided in an embodiment of the present application;

[0041] Figure 4 A schematic diagram of the structure of a backup voice call device provided in an embodiment of the present application;

[0042] Figure 5 A schematic diagram of the structure of a power supply module provided in an embodiment of the present application;

[0043] Figure 6 A schematic diagram of the circuit board structure of a backup voice call device provided in an embodiment of the present application;

[0044] Figure 7 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, each other embodiment obtained by those skilled in the art without making creative work belongs to the scope of protection of the present application.

[0046] Research has found that at present, the vehicle emergency call function is mainly achieved through the telematics box (Tbox) in the vehicle with an external microphone and speaker, and through a wiring harness connection to complete the audio reception and external playback functions of the emergency call. When the car has an accident or malfunctions, the wiring harness and connector are likely to be damaged, making the audio input function or the audio external playback function invalid, resulting in the inability of people in the car to make voice calls with the outside world while they can speak and hear normally, which reduces the stability of the vehicle's emergency call and thus reduces the safety of the vehicle.

[0047] Here, since most telematics boxes (Tbox) need to drive external speakers through the power amplifier chip, the power consumption during the call is relatively high. Therefore, the built-in battery capacity of the Tbox is large, which increases the size and cost of the Tbox. The large size will make the fixed installation location of the Tbox more stringent. The large-capacity battery can support the eCall call duration, and the size of the TBOX will also be affected by the battery volume.

[0048] In addition, the existing Tbox is pre-installed, which is a fixed cost for the entire vehicle. With the daily use of the Tbox, the internal battery life will become shorter, there are certain risks in hard-wired layout, and the emergency call function of some out-of-warranty vehicles cannot guarantee the stability of use.

[0049] Based on this, an embodiment of the present application provides a vehicle emergency call method. In the event that an emergency call event is triggered externally and there is a call failure in the emergency call device, a sleep wake-up is initiated for a backup voice call device in a dormant state through Bluetooth wake-up or button wake-up, and after the backup voice call device is successfully woken up, a voice call link is established between the backup voice call device and the emergency call device through Bluetooth, so that the driver and passengers can make an emergency call through the backup voice call device and use the voice call link, thereby giving full play to the role of the vehicle's emergency call function, improving the stability of the vehicle's emergency call, and thereby improving the safety of the vehicle.

[0050] See also Figure 1 , Figure 1 This is a flow chart of a vehicle emergency call method provided by an embodiment of the present application. Figure 1 As shown in , the vehicle emergency call method provided by the embodiment of the present application is generally applied to a vehicle emergency call system, wherein the vehicle emergency call system includes an emergency call device and a backup voice call device; wherein the emergency call device establishes a communication connection with the backup voice call device via Bluetooth, and the method includes:

[0051] S101 : In response to an externally triggered emergency call event, the emergency call device checks whether there is a call failure in the emergency call device.

[0052] The emergency call device described in the embodiment of the present application refers to a telematics box (Tbox) installed in a vehicle and equipped with vehicle emergency call technology (Emergency Call, eCall) for making a voice call with the outside world when an emergency call event is triggered.

[0053] Among them, vehicle emergency call technology (Emergency Call, eCall) is an automated emergency call system designed to automatically send alerts to emergency services in the event of a traffic accident. This technology is a mandatory requirement for all vehicle models. When the vehicle is seriously collided, the eCall system will automatically activate and contact the nearest emergency rescue center through the on-board communication equipment.

[0054] Here, the emergency call event may include but is not limited to being triggered by a driver or passenger through voice, a driver or passenger triggering through a button, or a vehicle detection trigger, etc.

[0055] In one implementation of the present application, during specific implementation, step S101 may include:

[0056] S1011. In response to an externally triggered emergency call event, the emergency call device checks a microphone and a speaker disposed in the emergency call device using a preset test sound, and obtains a check result.

[0057] In this step, the emergency call device runs a self-test program to ensure that all components are functioning properly, and initializes the hardware drivers of the microphone and speaker to ensure that they are in an operational state. Specifically, the microphone and speaker in the emergency call device are checked using a preset test tone, and the inspection results are obtained.

[0058] S1012: Based on the inspection result, determine whether the emergency call device has a call failure.

[0059] In this step, based on the test tone response performance of the microphone and the speaker in the inspection result, it is determined whether the emergency call device has a call failure.

[0060] Furthermore, in response to determining that there is no call failure in the emergency call device, the driver and passengers are enabled to make an emergency call through the emergency call device.

[0061] S102: In response to determining that the emergency call device has a call failure, the emergency call device initiates a sleep wake-up of the backup voice call device in a sleep state by waking it up via Bluetooth or by waking it up via a key.

[0062] It should be noted that before the emergency call event is triggered or when it is determined that there is no call failure in the emergency call device, the backup voice call device is in a dormant state, and the operating current of the backup voice call device in the dormant state is less than 10 μA.

[0063] In an embodiment of the present application, the backup voice call device includes a Bluetooth onboard antenna, a button module and a microcontroller.

[0064] The microcontroller can monitor the battery in the vehicle, the battery in the backup voice call device, and the power supply voltage through its own digital-to-analog conversion ADC function.

[0065] In this step, during the specific implementation, first, the emergency call device initiates a sleep wake-up operation for the standby voice call device in a dormant state by means of a Bluetooth wake-up operation through the Bluetooth onboard antenna; then, based on the acquired device status data of the standby voice call device, it is checked whether the standby voice call device is successfully awakened by means of the Bluetooth wake-up operation; finally, in the event that the standby voice call device fails to be awakened by means of the Bluetooth wake-up operation, the microcontroller controls the button module to be pressed and held for a preset time, so as to initiate a sleep wake-up operation for the standby voice call device in a dormant state by means of a button wake-up operation.

[0066] Here, if the Bluetooth wake-up of the backup voice call device fails, the sleep wake-up of the backup voice call device in the sleep state is initiated by a key wake-up method. At this time, the key wake-up can successfully wake up the backup voice call device.

[0067] In one implementation of the present application, during specific implementation, step S102 may include:

[0068] S1021. The emergency call device sends a Bluetooth wake-up signal to the microcontroller via the Bluetooth onboard antenna, so as to initiate a sleep wake-up of the backup voice call device in sleep state via Bluetooth wake-up, and obtain device status data of the backup voice call device.

[0069] S1022: Based on the device status data, check whether the backup voice call device is successfully awakened through the Bluetooth wake-up.

[0070] In an embodiment of the present application, based on the device status data including the working current of the backup voice call device that is in a dormant state and is obtained after initiating the dormant wake-up of the backup voice call device through Bluetooth wake-up, and based on the comparison result between the working current and the current threshold, it is checked whether the backup voice call device is successfully awakened through the Bluetooth wake-up.

[0071] Here, the current threshold is generally set to the operating current of the standby voice call device in a sleep state, that is, 10 μA.

[0072] S1023. If the backup voice call device fails to be awakened by the Bluetooth wake-up, the microcontroller controls the button module to press and hold for a preset time to initiate sleep awakening of the backup voice call device in sleep state by button awakening.

[0073] In the embodiments of the present application, the preset time is generally set to 3 seconds, and may also be set to other times according to actual conditions, and the present application will not make any further limitations thereon.

[0074] Here, the microcontroller controls the button module to be pressed and held for a preset time, that is, the button wake-up can successfully wake up the standby voice call device.

[0075] S103. When the backup voice call device is successfully awakened, the backup voice call device establishes a voice call link with the emergency call device via Bluetooth, so that the driver and passengers can make an emergency call through the backup voice call device and use the voice call link.

[0076] In the embodiment of the present application, the backup voice call device also includes an audio input module and an audio output module.

[0077] Here, when the backup voice call device is successfully awakened, the driver and passengers can make an emergency call voice call with the outside through the backup voice call device; the backup voice call device transmits the driver and passengers' voice to the emergency call device via Bluetooth and transmits it to the outside; the audio of the external response will be sent to the backup voice call device via Bluetooth transmission via the emergency call device for external playback.

[0078] In one implementation of the present application, during specific implementation, step S103 may include:

[0079] S1031. The backup voice call device establishes a connection with a network module disposed in the emergency call device through the Bluetooth onboard antenna to establish a voice call link between the backup voice call device and the emergency call device.

[0080] In this step, the Bluetooth onboard antenna in the backup voice call device establishes a specific setting connection with the network module set in the emergency call device to establish a voice call link between the backup voice call device and the emergency call device, thereby realizing the audio input of the microphone in the audio input module to the emergency call device, and after sending the audio to the microcontroller via Bluetooth, the power amplifier in the audio output module drives the speaker to play the sound externally.

[0081] S1032. In response to the audio input module receiving the externally input emergency call audio, the microcontroller sends the emergency call audio to the emergency call device using the voice call link.

[0082] Here, the audio input module may include a microphone and an audio input driving module.

[0083] S1033. In response to the emergency call device receiving an externally input call response audio, the emergency call device sends the call response audio to the microcontroller using the voice call link.

[0084] S1034: The microcontroller sends the call answering audio to the audio output module so as to play the call answering audio externally through the audio output module.

[0085] Here, the audio output module may include an amplifier and a speaker.

[0086] The vehicle emergency call method provided in the embodiment of the present application, in response to a situation where an emergency call event is triggered externally and there is a call failure in the emergency call device, initiates a sleep wake-up of a backup voice call device in a dormant state through Bluetooth wake-up or button wake-up, and after successfully waking up the backup voice call device, establishes a voice call link between the backup voice call device and the emergency call device through Bluetooth, so that the driver and passengers can make an emergency call through the backup voice call device and use the voice call link, thereby giving full play to the vehicle's emergency call function, improving the stability of the vehicle's emergency call, and thereby improving the safety of the vehicle.

[0087] See also Figure 2 , Figure 3 , Figure 2 This is one of the structural schematic diagrams of a vehicle emergency call system provided in an embodiment of the present application. Figure 3This is one of the structural diagrams of a vehicle emergency call system provided in an embodiment of the present application. Figure 2 As shown in FIG. 1 , the vehicle emergency call system 10 includes:

[0088] The emergency call device 110 is used to check whether the emergency call device has a call failure in response to an externally triggered emergency call event; in response to determining that the emergency call device has a call failure, initiate a sleep wake-up of the standby voice call device in a sleep state by Bluetooth wake-up;

[0089] The backup voice call device 120 is used to initiate sleep wake-up of the backup voice call device in a dormant state by pressing a button in response to determining that the emergency call device has a call failure; when the backup voice call device is successfully awakened, a voice call link with the emergency call device is established via Bluetooth, so that the driver and passengers can make an emergency call through the backup voice call device and use the voice call link.

[0090] Further, such as Figure 3 As shown in , the emergency call device 110 is also provided with a speaker, a microphone, an emergency call button and an airbag system; wherein the speaker is configured with a speaker driver (Speaker OUT); the microphone is configured with a microphone driver (MIC Input 8V BIAS); the emergency call button is configured with a state detection driver; and the airbag system (SRS) is interconnected with the emergency call device 110 via a PWM signal.

[0091] For further information, see Figure 4 , Figure 4 This is a schematic diagram of the structure of a backup voice call device provided in an embodiment of the present application. Figure 4 As shown in , the backup voice call device 120 includes a Bluetooth onboard antenna 121, a key module 122 and a microcontroller 123; wherein the microcontroller 123 is used to:

[0092] The Bluetooth wake-up signal sent by the emergency call device 110 is received through the Bluetooth onboard antenna 121; the button module 122 is controlled to be pressed and held for a preset time to initiate a sleep wake-up of the backup voice call device 120 in a sleep state by a button wake-up method.

[0093] Further, such as Figure 4 As shown in , the backup voice call device 120 also includes an audio input module 124 and an audio output module 125; wherein the Bluetooth onboard antenna 121 is used for:

[0094] Establishing a connection with a network module disposed in the emergency call device 110 to establish a voice call link between the backup voice call device 120 and the emergency call device 110;

[0095] The audio input module 124 is used to: receive emergency call audio input from the outside;

[0096] The microcontroller 123 is further used to: send the emergency call audio to the emergency call device 110 using the voice call link; send the call response audio sent by the emergency call device 110 using the voice call link to the audio output module 125;

[0097] The audio output module 125 is used to play the call answering audio externally.

[0098] Further, such as Figure 4 As shown in , the backup voice call device 120 further includes a power supply module 126 , and the power supply module 126 is used to process the voltage of the vehicle power supply and supply power to the microcontroller 123 .

[0099] For further information, see Figure 5 , Figure 5 This is a schematic diagram of the structure of a power supply module provided in an embodiment of the present application. Figure 5 As shown in the figure, the power supply module 126 includes a charging circuit 1261, a battery 1262, and a linear buck chip 1263; wherein, a power input interface arranged in the vehicle is connected to a first end of the charging circuit 1261; a second end of the charging circuit 1261 is connected to a first end of the battery 1262; a second end of the battery 1262 is connected to a first end of the linear buck chip 1263; and a second end of the linear buck chip 1263 is connected to the microcontroller 123.

[0100] In the embodiment of the present application, the battery 1262 is a nickel-hydrogen battery with a capacity of 300mAh; the power input interface is a vehicle-specific interface with the characteristics of firm connection and good contact. The power supply in the vehicle is connected to the power input interface and the charging circuit 1261 through two wires, VBAT and GND, and then the linear step-down chip 1263 steps down the voltage to output a 3.3V voltage to power the microcontroller 123.

[0101] For further information, see Figure 6 , Figure 6 A schematic diagram of the circuit board structure of a backup voice call device provided in an embodiment of the present application.

[0102] The backup voice call device 120 is provided with a PCBA circuit board in the hardware structure as the main core control part, and the PCBA circuit board is welded with a Bluetooth onboard antenna 121, a microcontroller 123, an amplifier of an audio output module 125 and a power supply part of a power supply module 126.

[0103] Among them, two power supply lines led out of the battery of the power supply module 126 are installed on the PCBA circuit board through a 2-pin terminal, and the backup voice call device 120 is placed under the PCBA circuit board with a mounting shell (black foam and PCB board) for isolation protection and buffering; the speaker and power input interface of the audio output module 125 are on the same surface in front of the backup voice call device 120, facing the driver; the audio input module 124 is on the top of the backup voice call device 120 to facilitate receiving the voice signals of the driver and passengers; the button module 122 is on the left side of the backup voice call device 120, which can forcibly open and close the backup voice call device 120 or perform emergency call function operations.

[0104] In the embodiment of the present application, the backup voice call device 120 is a plastic shell to better ensure that the Bluetooth signal transmission is not shielded and interfered with, and to ensure the quality of audio transmission; the Bluetooth function uses an onboard antenna to ensure the connection stability when the communication distance is more than 30m when receiving and sending signals.

[0105] In addition, the backup voice call device 120 adopts a low-power microcontroller system design. The overall chip solution is inexpensive and easy to install. It can be pre-installed or post-installed in the vehicle, with a low increase in the cost of the entire vehicle. It can assist the emergency call device 110 in completing volume optimization and effectively avoid the risk of functional failure caused by hard wire damage.

[0106] The vehicle emergency call system provided in the embodiment of the present application, in response to a situation where an emergency call event is externally triggered and there is a call failure in the emergency call device, initiates a sleep wake-up of a backup voice call device in a dormant state through Bluetooth wake-up or button wake-up, and after successfully waking up the backup voice call device, establishes a voice call link between the backup voice call device and the emergency call device through Bluetooth, so that the driver and passengers can make an emergency call through the backup voice call device and use the voice call link, thereby giving full play to the vehicle's emergency call function, improving the stability of the vehicle's emergency call, and thereby improving the safety of the vehicle.

[0107] See also Figure 7 , Figure 7 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. Figure 7 As shown in , the electronic device 700 includes a processor 710 , a memory 720 and a bus 730 .

[0108] The memory 720 stores machine-readable instructions executable by the processor 710. When the electronic device 700 is running, the processor 710 communicates with the memory 720 via the bus 730. When the machine-readable instructions are executed by the processor 710, the above-mentioned Figure 1 The specific implementation of the steps of the vehicle emergency call method in the method embodiment shown can be found in the method embodiment, which will not be repeated here.

[0109] The present application also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the computer program can execute the above-mentioned Figure 1 The specific implementation of the steps of the vehicle emergency call method in the method embodiment shown can be found in the method embodiment, which will not be repeated here.

[0110] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0111] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0112] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0113] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0114] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium that is executable by a processor. Based on this understanding, the technical solution of the present application can essentially be embodied in the form of a software product, or in other words, the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0115] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-mentioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-mentioned embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A vehicle emergency call method, characterized in that: The method is applied to a vehicle emergency call system, the vehicle emergency call system includes an emergency call device and a backup voice call device; wherein the emergency call device establishes a communication connection with the backup voice call device via Bluetooth, and the method includes: In response to an externally triggered emergency call event, the emergency call device checks whether there is a call failure in the emergency call device; In response to determining that the emergency call device has a call failure, the emergency call device initiates a sleep wake-up of the standby voice call device in a sleep state by waking it up via Bluetooth or by waking it up by a key. When the backup voice call device is successfully awakened, the backup voice call device establishes a voice call link with the emergency call device via Bluetooth, so that the driver and passengers can make an emergency call through the backup voice call device and use the voice call link.

2. The method according to claim 1, characterized in that The step of checking, by the emergency call device in response to an externally triggered emergency call event, whether the emergency call device has a call failure comprises: The emergency call device responds to an externally triggered emergency call event by using a preset test tone to check a microphone and a speaker provided in the emergency call device, and obtains a check result; Based on the inspection result, it is determined whether the emergency call device has a call failure.

3. The method according to claim 1, characterized in that The backup voice call device includes a Bluetooth onboard antenna, a button module and a microcontroller; the method of waking up the backup voice call device in a dormant state by the emergency call device through Bluetooth or by the backup voice call device through a button, includes: The emergency call device sends a Bluetooth wake-up signal to the microcontroller through the Bluetooth onboard antenna, so as to initiate a sleep wake-up of the standby voice call device in a sleep state through Bluetooth wake-up, and obtain device status data of the standby voice call device; Based on the device status data, checking whether the standby voice call device is successfully awakened by the Bluetooth wake-up; If the backup voice call device fails to be awakened by the Bluetooth wake-up, the microcontroller controls the button module to press and hold for a preset time to initiate sleep awakening of the backup voice call device in sleep state by button awakening.

4. The method according to claim 3, characterized in that The backup voice call device further includes an audio input module and an audio output module; the backup voice call device establishes a voice call link with the emergency call device via Bluetooth, so that the driver and passengers can make an emergency call via the backup voice call device and the voice call link, including: The backup voice call device establishes a connection with a network module disposed in the emergency call device through the Bluetooth onboard antenna to establish a voice call link between the backup voice call device and the emergency call device; In response to the audio input module receiving the externally input emergency call audio, the microcontroller sends the emergency call audio to the emergency call device using the voice call link; In response to the emergency call device receiving an externally input call answering audio, the emergency call device sends the call answering audio to the microcontroller using the voice call link; The microcontroller sends the call answering audio to the audio output module so that the call answering audio is played outwardly through the audio output module.

5. A vehicle emergency call system, characterized in that: The vehicle emergency call system comprises: The emergency call device is used to check whether the emergency call device has a call failure in response to an externally triggered emergency call event; in response to determining that the emergency call device has a call failure, initiate a sleep wake-up of the standby voice call device in a sleep state by Bluetooth wake-up; The backup voice call device is used to initiate sleep wake-up of the backup voice call device in a dormant state by pressing a button in response to determining that the emergency call device has a call failure; when the backup voice call device is successfully awakened, a voice call link with the emergency call device is established via Bluetooth, so that the driver and passengers can make an emergency call through the backup voice call device and utilize the voice call link.

6. The system according to claim 5, characterized in that The backup voice call device includes a Bluetooth onboard antenna, a key module and a microcontroller; wherein the microcontroller is used for: The Bluetooth wake-up signal sent by the emergency call device is received through the Bluetooth onboard antenna; the button module is controlled to be pressed and maintained for a preset time, so as to initiate a sleep wake-up of the standby voice call device in a sleep state by a button wake-up method.

7. The system according to claim 6, characterized in that The backup voice call device further includes an audio input module and an audio output module; wherein the Bluetooth onboard antenna is used for: Establishing a connection with a network module disposed in the emergency call device to establish a voice call link between the backup voice call device and the emergency call device; The audio input module is used to: receive emergency call audio input from the outside; The microcontroller is also used to: send the emergency call audio to the emergency call device using the voice call link; send the call response audio sent by the emergency call device using the voice call link to the audio output module; The audio output module is used to play the call answering audio externally.

8. The system according to claim 6, characterized in that The backup voice call device also includes a power supply module, which is used to process the voltage of the vehicle power supply and supply power to the microcontroller.

9. An electronic device, characterized in that: include: A processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate through the bus, and the machine-readable instructions are executed by the processor to execute the steps of the vehicle emergency call method as described in any one of claims 1 to 4.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the vehicle emergency call method according to any one of claims 1 to 4 are executed.

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