Vehicle emergency call method and device, vehicle and storage medium

Abstract

The invention provides a vehicle emergency call method and device, a vehicle and a storage medium, and relates to the technical field of vehicles. The method comprises the following steps: in response to a trigger signal related to a vehicle emergency call system, obtaining operation states of a first sound system and a second sound system; when the first sound system operates normally, using the first sound system to perform language interaction for emergency call; and when the first sound system breaks down and the second sound system operates normally, the second sound system is adopted to perform language interaction for the emergency call. The method and the device are used for realizing normal response of language interaction during vehicle emergency call, specifically, based on the actual operation states of the first sound system of the vehicle emergency call system and the second sound system of the vehicle-mounted entertainment terminal, the sound system for emergency call language interaction is flexibly switched, the emergency call is ensured to be smoothly carried out, and the user experience is improved. The fault handling capability of the vehicle emergency call system on the vehicle and the safety performance of the vehicle are improved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a vehicle emergency call method, device, vehicle, and storage medium. Background Art

[0002] As an important safety technology to improve road safety and emergency response efficiency, the core function of the vehicle emergency call system (eCall) is to automatically send vehicle location information to the public safety answering platform (PSAP, i.e. rescue platform) and establish voice communication when a serious traffic accident occurs, so as to obtain rescue quickly. In related technologies, the system not only supports manual triggering, but also can be automatically triggered when the vehicle driver cannot actively trigger it, thus enhancing the safety performance of the vehicle.

[0003] At present, there are mainly two forms of design for the sound equipment of the vehicle emergency call system on the vehicle:

[0004] 1. The vehicle emergency call system uses a dedicated sound system;

[0005] 2. To reduce costs, the sound system of the vehicle's in-vehicle entertainment terminal is used for the vehicle's emergency call system;

[0006] All of the above methods may not be able to meet emergency needs in extreme situations. For example, if the sound system corresponding to the vehicle's emergency call system fails, the voice interaction function will be completely lost and rescue cannot be obtained in time. Summary of the invention

[0007] The problem solved by the present invention is: how to improve the ability of a vehicle emergency call system on a vehicle to cope with failures and improve the safety performance of the vehicle.

[0008] In order to solve the above problems, the present invention provides a vehicle emergency call method, device, vehicle, and storage medium.

[0009] In a first aspect, the present invention provides a vehicle emergency call method, based on a vehicle emergency call system, the vehicle emergency call system includes a first sound system and a second sound system for an in-vehicle entertainment terminal, the first sound system and the second sound system are respectively used to communicate with the in-vehicle communication terminal of the vehicle; the vehicle emergency call method includes:

[0010] In response to a trigger signal regarding the vehicle emergency call system, acquiring operating states of the first sound system and the second sound system;

[0011] When the first sound system operates normally, the first sound system is used for language interaction for emergency calls; when the first sound system fails and the second sound system operates normally, the second sound system is used for language interaction for emergency calls.

[0012] Optionally, the in-vehicle communication terminal includes an emergency call service unit and a wireless communication unit for wirelessly connecting to a base station, and the first sound system is communicatively connected to the wireless communication unit through the emergency call service unit; the in-vehicle entertainment terminal also includes an emergency call interaction unit, and the second sound system is communicatively connected to the emergency call service unit through the emergency call interaction unit;

[0013] Before obtaining the operating states of the first sound system and the second sound system in response to the trigger signal of the vehicle emergency call system, the vehicle emergency call method further includes:

[0014] In response to a vehicle power-on instruction, controlling the vehicle communication terminal and the vehicle entertainment terminal to start;

[0015] When the emergency call service unit of the vehicle-mounted communication terminal is started up and the emergency call interaction unit of the vehicle-mounted entertainment terminal is started up, the emergency call service unit is controlled to communicate with the emergency call interaction unit; wherein, when the emergency call service unit is started up and the emergency call interaction unit is not started up, it is determined again whether the emergency call interaction unit is started up after a first preset time period.

[0016] Optionally, after controlling the emergency call service unit to establish a communication connection with the emergency call interaction unit, the vehicle emergency call method further includes:

[0017] The operating status of the second sound system is obtained and saved, and emergency call trigger monitoring is started.

[0018] Optionally, the vehicle-mounted communication terminal also includes a first sound data processing unit, and the first sound system is communicatively connected to the wireless communication unit via the first sound data processing unit and the emergency call service unit in sequence; the vehicle-mounted entertainment terminal also includes a second sound data processing unit, and the second sound system is communicatively connected to the emergency call service unit via the second sound data processing unit and the emergency call interaction unit in sequence; the first sound data processing unit and the second sound data processing unit are both used to convert input audio data into network data for network transmission that complies with a preset protocol and output it, and to convert the input network data that complies with the preset protocol into the audio data and output it.

[0019] Optionally, when the first sound system fails and the second sound system operates normally, using the second sound system to perform language interaction for emergency calls includes:

[0020] When the first sound system fails, the second sound system operates normally, and the emergency call interaction unit is in normal communication connection with the emergency call service unit, the in-vehicle entertainment terminal is controlled to enable the second sound data processing unit.

[0021] Optionally, the second sound data processing unit is provided with an audio data inflow port and a network data inflow port, the second sound system is communicatively connected to the second sound data processing unit via the audio data inflow port, and the emergency call interaction unit is communicatively connected to the second sound data processing unit via the network data inflow port;

[0022] After controlling the in-vehicle entertainment terminal to enable the second sound data processing unit, when the first sound system fails and the second sound system operates normally, using the second sound system to perform language interaction for emergency calls also includes:

[0023] When the audio data is input into the second sound data processing unit through the audio data inflow port, the audio data is converted into the network data that complies with the preset protocol by the second sound data processing unit and output to the emergency call interaction unit; when the network data that complies with the preset protocol is input into the second sound data processing unit through the network data inflow port, the network data is converted into the audio data by the second sound data processing unit and output to the second sound system.

[0024] Optionally, when the first sound system fails and the second sound system operates normally, using the second sound system to perform language interaction for emergency calls includes:

[0025] When the first sound system fails, the second sound system operates normally, and the communication connection between the emergency call interaction unit and the emergency call service unit is abnormal, a network recovery process is performed until the communication connection between the emergency call interaction unit and the emergency call service unit is normal, and the in-vehicle entertainment terminal is controlled to enable the second sound data processing unit.

[0026] In a second aspect, the present invention provides a vehicle emergency call device, based on a vehicle emergency call system, the vehicle emergency call system includes a first sound system and a second sound system for a vehicle entertainment terminal, the first sound system and the second sound system are respectively used to communicate with the vehicle communication terminal of the vehicle; the vehicle emergency call device includes:

[0027] a trigger response unit, configured to obtain the operating states of the first sound system and the second sound system in response to a trigger signal regarding the vehicle emergency call system;

[0028] The sound system selection unit is used to use the first sound system to perform language interaction for emergency calls when the first sound system operates normally; when the first sound system fails and the second sound system operates normally, use the second sound system to perform language interaction for emergency calls.

[0029] In a third aspect, the present invention provides a vehicle, comprising a memory and a processor;

[0030] The memory is used to store computer programs;

[0031] The processor is used to implement the vehicle emergency call method as described in the second aspect when executing the computer program.

[0032] In a fourth aspect, the present invention provides a computer-readable storage medium storing a computer program. When the computer program is read and executed by a processor, the vehicle emergency call method as described in the second aspect is implemented.

[0033] The beneficial effects of the vehicle emergency call method, device, vehicle, and storage medium of the present invention are as follows: The present invention is used to achieve the normal response of the sound system used for emergency call language interaction during vehicle emergency calls. Specifically, based on the first sound system of the vehicle emergency call system and the second sound system of the vehicle entertainment terminal, a redundant design of the sound system used for emergency calls is implemented to avoid the occurrence of single point failures, that is, to avoid the situation where the entire vehicle emergency call system cannot normally perform emergency calls due to a single sound system failure, thereby improving the ability of the vehicle emergency call system on the vehicle to cope with failures, greatly improving the safety performance and practicality of the vehicle emergency call system, and improving the safety performance of the vehicle. Among them, the present invention flexibly switches the sound system used for emergency call language interaction based on the actual operating status of the first sound system and the second sound system to ensure the smooth conduct of the emergency call, further improving the ability of the vehicle emergency call system on the vehicle to cope with failures and the safety performance of the vehicle. In addition, for vehicles whose related technology already has a first sound system dedicated to emergency calls and a second sound system dedicated to in-vehicle entertainment terminals, the present invention can make full use of the existing hardware resources of the vehicle. Only by adjusting or modifying the corresponding control strategies, without increasing hardware costs, the vehicle can implement the control strategies for the first sound system and the second sound system according to the present invention, thereby improving the vehicle's emergency call system's ability to cope with faults and the vehicle's safety performance, and will not affect the stability of the vehicle's original vehicle emergency call system (that is, the present invention will only call the second sound system in the extreme case of a failure of the first sound system, and will not affect emergency calls based on the first sound system). BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of a vehicle emergency call method according to an embodiment of the present invention;

[0035] Figure 2 It is a structural block diagram of the communication connection between the vehicle emergency call system, the vehicle entertainment terminal, the vehicle communication terminal, the base station and the rescue platform in an embodiment of the present invention;

[0036] Figure 3 A structural block diagram of the communication connection between the vehicle emergency call system, the vehicle entertainment terminal and the vehicle communication terminal in an embodiment of the present invention;

[0037] Figure 4 A structural block diagram of the communication connection between the vehicle emergency call system, the vehicle entertainment terminal and the vehicle communication terminal in an embodiment of the present invention;

[0038] Figure 5 A structural block diagram of a vehicle emergency call device in an embodiment of the present invention;

[0039] Figure 6It is a schematic diagram of the structure of the connection between the memory and the processor of the vehicle in an embodiment of the present invention. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0041] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0042] Combination Figure 1 , Figure 2 As shown, an embodiment of the present invention provides a vehicle emergency call method based on a vehicle emergency call system. The vehicle emergency call system includes a first sound system and a second sound system for an in-vehicle entertainment terminal. The first sound system and the second sound system are respectively used for communication connection with the in-vehicle communication terminal of the vehicle.

[0043] Specifically, the vehicle's vehicle emergency call system (eCall) is used to implement the vehicle's automatic alarm and voice interaction functions in emergency situations, so as to quickly obtain rescue services; the vehicle emergency call method is implemented based on the vehicle emergency call system. Among them, the on-board communication terminal (TBOX, Telematics BOX) is mainly responsible for realizing the vehicle's wireless communication function; the on-board entertainment terminal (Digital Head Unit, DHU) refers to the on-board central control display and interactive equipment, which is mainly responsible for providing entertainment and information services. In some embodiments, the vehicle's on-board communication terminal, on-board entertainment terminal and other in-vehicle controllers generally communicate through CAN (Controller Area Network) to achieve information interaction; or, the on-board communication terminal and the on-board entertainment terminal are based on a communication line such as a network cable, and communicate through the on-board Ethernet channel to achieve information interaction.

[0044] The first sound system of the vehicle emergency call system and the second sound system of the in-vehicle entertainment terminal are respectively used to communicate with the vehicle's in-vehicle communication terminal, so as to combine the first sound system dedicated to emergency calls and the vehicle's existing second sound system to realize a redundant design of the sound system for emergency calls, so that even if one of the first sound system and the second sound system fails, the vehicle emergency call system can still realize language interaction for emergency calls through the backup sound system (i.e., another sound system), thereby ensuring the continuous availability of the emergency call function, avoiding the risk of emergency call failure due to failure of a single sound system, improving the ability of the vehicle emergency call system on the vehicle to cope with failures, and improving the safety performance of the vehicle.

[0045] Vehicle emergency call methods include:

[0046] Step 100: In response to a trigger signal related to a vehicle emergency call system, obtain the operating status of a first sound system and a second sound system.

[0047] Specifically, in step 100, in response to a trigger signal about the vehicle emergency call system, such as a traffic accident of the vehicle (such as the collision sensor of the vehicle detects that the impact force exceeds a set threshold) or the driver manually presses the emergency call button, the vehicle emergency call system receives a trigger signal. At this time, the operating status of the first sound system and the second sound system is obtained, that is, the operating status of the first sound system and the second sound system is detected, such as checking whether the hardware, communication, etc. of the first sound system and the second sound system are working normally, for example, checking whether the speakers and microphones of the first sound system and the second sound system are occupied, whether the communication signal is interrupted, etc. In this way, appropriate responses and decisions can be made based on the determined operating status of the first sound system and the second sound system.

[0048] Step 200: When the first sound system operates normally, the first sound system is used for language interaction for emergency calls; when the first sound system fails and the second sound system operates normally, the second sound system is used for language interaction for emergency calls.

[0049] Specifically, in step 200, according to the operating status of the first sound system and the second sound system obtained (determined) in step 100, if the first sound system operates normally, the first sound system is preferentially used as the voice interaction channel for emergency calls; and if the first sound system detects a fault (for example, a speaker fault, a microphone fault, or a communication interruption occurs in the first sound system), resulting in the first sound system being unable to be used normally for emergency calls, and the second sound system operates normally at this time, the second sound system is used for voice interaction for emergency calls. In this way, based on the actual operating status of the first sound system and the second sound system, the voice interaction channel is flexibly switched, thereby ensuring that in the event of a fault in the first sound system, the emergency call function can still be smoothly realized through the second sound system, thereby improving the ability of the vehicle emergency call system on the vehicle to cope with faults and the safety performance of the vehicle.

[0050] In this way, the method of this embodiment is used to achieve the normal response of the sound system used for emergency call language interaction during vehicle emergency calls. Specifically, based on the first sound system of the vehicle emergency call system and the second sound system of the vehicle entertainment terminal, a redundant design of the sound system used for emergency calls is implemented to avoid the occurrence of single point failures, that is, to avoid the situation where the entire vehicle emergency call system cannot normally make emergency calls due to a single sound system failure, thereby improving the ability of the vehicle emergency call system on the vehicle to cope with failures, greatly improving the safety performance and practicality of the vehicle emergency call system, and improving the safety performance of the vehicle. Among them, the method of this embodiment flexibly switches the sound system used for emergency call language interaction based on the actual operating status of the first sound system and the second sound system, ensuring the smooth conduct of the emergency call, and further improving the ability of the vehicle emergency call system on the vehicle to cope with failures and the safety performance of the vehicle. In addition, for vehicles whose related technologies already have a first sound system dedicated to emergency calls and a second sound system dedicated to in-vehicle entertainment terminals, the method of this embodiment can make full use of the existing hardware resources of the vehicle. Only by adjusting or modifying the corresponding control strategies, without increasing hardware costs, the vehicle can implement the control strategies for the first sound system and the second sound system according to the method of this embodiment, thereby improving the ability of the vehicle's emergency call system to cope with faults and the safety performance of the vehicle, and will not affect the stability of the vehicle's original vehicle emergency call system (that is, the method of this embodiment will only call the second sound system in the extreme case of a failure of the first sound system, and will not affect emergency calls based on the first sound system).

[0051] Optionally, combined Figure 2 , Figure 3As shown, the vehicle-mounted communication terminal includes an emergency call service unit and a wireless communication unit for wirelessly connecting to a base station, and the first sound system is communicatively connected to the wireless communication unit through the emergency call service unit; the vehicle-mounted entertainment terminal also includes an emergency call interaction unit, and the second sound system is communicatively connected to the emergency call service unit through the emergency call interaction unit.

[0052] Specifically, the on-board communication terminal realizes wireless communication connection with the ground base station through its wireless communication unit to realize normal communication between the vehicle and the outside world, and ensures that the vehicle can communicate with the public safety response platform (PSAP, i.e. rescue platform) corresponding to the vehicle in a timely manner in an emergency to obtain rescue services; the emergency call service unit of the on-board communication terminal is used to initiate and manage the emergency call process in an emergency, such as receiving trigger signals, collecting and transmitting information, and voice interaction management. The first sound system is connected to the wireless communication unit through the emergency call service unit to realize voice interaction between the vehicle user and the external rescue platform based on the communication between the wireless communication unit and the external rescue platform. Specifically, the first sound system is responsible for providing a voice channel between the in-vehicle user and the external rescue platform, and transmits the voice information of the in-vehicle user to the wireless communication unit through the emergency call service unit, and then the wireless communication unit forwards the voice information to the external rescue platform through the wireless communication network. During the emergency call process, the in-vehicle user sends a voice call for help through the first sound system, and the emergency call service unit transmits the voice signal to the wireless communication unit, and establishes a voice communication connection with the external rescue platform through the wireless communication unit. After receiving the voice information, the external rescue platform can provide real-time feedback to the vehicle user of voice instructions or other necessary help to ensure that the user can get a timely rescue response.

[0053] The emergency call interaction unit of the in-vehicle entertainment terminal is used to realize the access of the second sound system to the vehicle emergency call system, and is responsible for effectively communicating the second sound system with the emergency call service unit. Based on the communication connection between the emergency call service unit and the wireless communication unit, the second sound system can also be used for voice interaction with the external rescue platform, realizing the redundant design of the sound system for emergency calls, and improving the ability of the vehicle emergency call system to cope with failures and the safety performance of the vehicle. In this way, when the first sound system fails, the second sound system can be called to ensure the smooth progress of the emergency call voice interaction.

[0054] Before step 100, the vehicle emergency call method further includes:

[0055] In response to a vehicle power-on instruction, the vehicle communication terminal and the vehicle entertainment terminal are controlled to start.

[0056] Specifically, in response to the vehicle power-on command, such as when the user controls the vehicle to start or ignite, the user's operation corresponds to the issuance of a corresponding power-on command, and when the corresponding controller (such as VCU) receives the power-on command, the vehicle communication terminal and the vehicle entertainment terminal are controlled to start, so as to provide corresponding services for the vehicle or the user. For example, after the vehicle is started, the vehicle communication terminal and the vehicle entertainment terminal are started accordingly, and the emergency call service unit arranged on the vehicle communication terminal and the emergency call interaction unit arranged on the vehicle entertainment terminal are started respectively with their own systems.

[0057] When the emergency call service unit of the vehicle-mounted communication terminal is started up and the emergency call interaction unit of the vehicle-mounted entertainment terminal is started up, the emergency call service unit is controlled to establish a communication connection with the emergency call interaction unit; wherein, when the emergency call service unit is started up and the emergency call interaction unit is not started up, it is determined whether the emergency call interaction unit is started up again after a first preset time period.

[0058] Specifically, when the emergency call service unit of the vehicle communication terminal is started and the emergency call interaction unit of the vehicle entertainment terminal is started, the emergency call service unit can be controlled to communicate with the emergency call interaction unit to prepare for the subsequent emergency calls that may occur, and improve the response efficiency and timeliness of the subsequent emergency calls. Among them, according to the real-time monitoring of the operating status of the emergency call service unit and the emergency call interaction unit, when it is determined that the emergency call service unit has been started, but the emergency call interaction unit has not been started, it is obviously impossible to effectively interact between the two at this time, and it is necessary to wait, and re-determine whether the emergency call interaction unit has been started after waiting for the first preset time. If so, the emergency call service unit can be controlled to communicate with the emergency call interaction unit; if not, continue to wait, such as waiting for the first preset time again to re-determine whether the emergency call interaction unit has been started, and so on, until the emergency call interaction unit is started. Among them, the first preset time can be set according to actual needs.

[0059] Exemplarily, when the emergency call service unit of the vehicle communication terminal is started and the emergency call interaction unit of the vehicle entertainment terminal is not started, a waiting timer is started. After the timing reaches a first preset time, it is reconfirmed whether the emergency call interaction unit is started.

[0060] Optionally, after controlling the emergency call service unit to establish a communication connection with the emergency call interaction unit, the vehicle emergency call method further includes:

[0061] Obtain and save the operating status of the second sound system, and start emergency call trigger monitoring.

[0062] Specifically, after the emergency call service unit and the emergency call interaction unit are both started and the emergency call service unit is controlled to communicate with the emergency call interaction unit, real-time monitoring of the operating status of the second sound system of the vehicle entertainment terminal is started, and the acquired status information is saved for subsequent analysis. For example, when an emergency call occurs, the currently applicable sound system can be quickly and timely determined based on these status information, so as to achieve a rapid and timely response to the emergency call trigger, and improve the ability of the vehicle emergency call system on the vehicle to cope with faults and the safety performance of the vehicle. In some embodiments, the startup thread monitors the operating status of the second sound system in real time.

[0063] At the same time, the emergency call trigger monitoring is started to detect the trigger events related to the emergency call in real time and improve the response efficiency to the emergency call trigger. For example, the trigger monitoring of the SOS button (i.e. emergency call) on the vehicle is started to timely monitor the user's manual triggering of the SOS button for emergency call; the monitoring of the vehicle collision signal is started to realize the monitoring of the automatic triggering conditions of the vehicle emergency call, such as the signal of serious vehicle collision detected by the corresponding sensor of the vehicle (as the automatic triggering condition of the emergency call).

[0064] Optionally, the first sound system includes a first audio playback unit, a first audio recording unit, and a first sound control unit for driving the first audio playback unit and the first audio recording unit, and the second sound system includes a second audio playback unit, a second audio recording unit, and a second sound control unit for driving the second audio playback unit and the second audio recording unit.

[0065] Exemplarily, the first sound system and the second sound system are respectively designed as independent sound processing units, each having a playback and recording function, and driven and coordinated by their own sound control units. The first sound system includes a first audio playback unit, a first audio recording unit, and a first sound control unit for driving the first audio playback unit and the first audio recording unit, wherein the first audio playback unit (such as a speaker) can convert the received voice signal into an audible sound or audio signal for voice interaction between the user and the external rescue platform; the first audio recording unit (such as a microphone) is used to collect the user's voice signal and convert it into a corresponding digital signal for processing by the emergency call service unit; the first sound control unit is responsible for coordinating (or driving) the working status of the first audio playback unit and the first audio recording unit, such as controlling the playback, recording and switching of the audio signal, to ensure high-quality voice interaction during the emergency call process. Similarly, the second sound system includes a second audio playback unit, a second audio recording unit, and a second sound control unit for driving the second audio playback unit and the second audio recording unit, wherein the second audio playback unit (such as a speaker integrated in the in-vehicle entertainment terminal) can be used to provide a backup voice playback function for emergency calls when the first sound system fails to work properly; the second audio recording unit (such as a microphone integrated in the in-vehicle entertainment terminal) is used to collect user voices as a backup voice input device for the first sound system; the second sound control unit is used to coordinate (or drive) the working status of the second audio playback unit and the second audio recording unit to ensure that when the first sound system fails, the second sound system can take over the voice interaction function of the emergency call in time. In this way, the redundant configuration of the emergency call voice interaction function is realized, which can effectively improve the reliability and fault tolerance of the vehicle emergency call system, ensure that users can obtain stable voice service support in critical situations, and thus improve the overall safety performance of the vehicle.

[0066] Optionally, combined Figure 4 As shown, the vehicle-mounted communication terminal also includes a first sound data processing unit, and the first sound system is communicatively connected to the wireless communication unit via the first sound data processing unit and the emergency call service unit in sequence; the vehicle-mounted entertainment terminal also includes a second sound data processing unit, and the second sound system is communicatively connected to the emergency call service unit via the second sound data processing unit and the emergency call interaction unit in sequence; the first sound data processing unit and the second sound data processing unit are both used to convert the input audio data into network data for network transmission that complies with a preset protocol and output it, and to convert the input network data that complies with a preset protocol into audio data and output it.

[0067] Specifically, in order to improve the voice interaction performance and data processing capabilities during vehicle emergency calls, the in-vehicle communication terminal and the in-vehicle entertainment terminal are respectively configured with a first sound data processing unit and a second sound data processing unit to support format conversion of audio data and two-way processing of network data. Among them, the vehicle-mounted communication terminal is equipped with a first sound data processing unit, which serves as an audio data bridging unit between the first sound system and the emergency call service unit. It can be used to convert the audio data input by the first sound system into network data for network transmission that complies with a preset protocol, and output it to the emergency call service unit so as to be forwarded through a wireless communication unit that is communicatively connected to the emergency call service unit. For example, when a user inputs voice through a first audio recording unit (such as a microphone) of the first sound system, the first sound data processing unit receives the audio data collected by the first audio recording unit, encodes the audio data according to a preset protocol, converts it into network data that complies with the preset protocol, uses it for network transmission, and outputs it to the emergency call service unit; it can also be used to convert network data that complies with a preset protocol transmitted by an external rescue platform through a wireless communication unit and an emergency call service unit into audio data, and output it to the first sound system for playback. For example, the first sound data processing unit receives and decodes network data that complies with a preset protocol, restores it to an audio signal, and outputs it to the first audio playback unit to achieve high-quality voice output.

[0068] Similarly, the in-vehicle entertainment terminal is equipped with a second sound data processing unit for supporting audio data bridging between the second sound system and the emergency call interaction unit. It can be used to convert the audio data input by the second sound system into network data for network transmission that complies with a preset protocol, and output it to the emergency call service unit through the emergency call interaction unit so as to be forwarded through a wireless communication unit that is communicatively connected to the emergency call service unit. For example, when a user inputs voice through a second audio recording unit (such as a microphone) of the second sound system, the second sound data processing unit receives the audio data collected by the second audio recording unit, encodes the audio data according to a preset protocol, converts it into network data that complies with the preset protocol, and uses it for network transmission, and outputs it to the emergency call service unit through the emergency call interaction unit. It can also be used to convert network data that complies with a preset protocol transmitted by an external rescue platform through a wireless communication unit and an emergency call service unit into audio data, and output it to the second sound system for playback. For example, the second sound data processing unit receives and decodes network data that complies with a preset protocol, restores it to an audio signal, and outputs it to a second audio playback unit (such as a speaker) to achieve high-quality voice output.

[0069] In this way, by respectively setting the first sound data processing unit and the second sound data processing unit in the vehicle communication terminal and the vehicle entertainment terminal, the two-way conversion between audio and network data can be flexibly and efficiently processed to ensure the real-time and stability of voice interaction. In addition, by supporting the encoding and decoding functions of the preset protocol, the vehicle emergency call system and the method of this embodiment have good compatibility and scalability, can adapt to different communication network environments, and improve the overall performance and reliability of the vehicle emergency call system. It is also easy to realize the encryption processing of communication information and improve the security of communication.

[0070] Optionally, the external rescue platform is connected to the base station through at least one of the vehicle cloud platform and the ground gateway. Exemplarily, in response to the trigger signal of the vehicle emergency call system, the vehicle will obtain relevant information of the vehicle (such as vehicle location information, personnel quantity information, etc.) while making an emergency call and upload it to the external rescue platform through the vehicle communication terminal (or wireless communication unit) to facilitate subsequent rescue. Based on this, considering that the relevant information of the vehicle is a kind of data that needs to be processed, analyzed and recorded, if it needs to be integrated and analyzed through the vehicle cloud platform to optimize the subsequent rescue strategy or vehicle management, therefore, for the transmission of this information, the vehicle transmits it in sequence through the vehicle communication terminal and the external base station, ground gateway, vehicle cloud platform, and external rescue platform to ensure the integrity and availability of the data; and the voice interaction data, as data with extremely high real-time requirements, must reduce the transmission delay as much as possible to ensure timely and effective rescue communication. Therefore, the voice interaction data transmitted in the form of network data can be directly transmitted in sequence through the vehicle communication terminal, the base station ground gateway and the external rescue platform to ensure the fluency and real-time nature of the voice call.

[0071] Optionally, when the first sound system fails and the second sound system operates normally, using the second sound system to perform language interaction for emergency calls includes:

[0072] When the first sound system fails, the second sound system operates normally, and the communication connection between the emergency call interaction unit and the emergency call service unit is normal, the in-vehicle entertainment terminal is controlled to enable the second sound data processing unit.

[0073] Specifically, in order to ensure that the vehicle can still perform normal voice interaction for emergency calls when the first sound system fails, the second sound system of the in-vehicle entertainment terminal is used as a backup sound system to implement a redundant design of the sound system for emergency call voice interaction, thereby improving the ability of the vehicle's emergency call system to cope with failures and the safety performance of the vehicle. Since the in-vehicle entertainment terminal also includes a second sound data processing unit, when the first sound system fails, the second sound system operates normally, and the communication connection between the emergency call interaction unit and the emergency call service unit is normal, the in-vehicle entertainment terminal is controlled to enable the second sound data processing unit.

[0074] Exemplarily, after the vehicle is powered on, when a fault is detected in the first sound system (for example, the speaker or microphone of the first sound system fails, or the sound control unit is abnormal), the operating status of the second sound system is further detected. If it is detected that the second sound system is operating normally and the communication connection between the emergency call interaction unit and the emergency call service unit is normal, the backup mechanism is triggered, that is, the in-vehicle entertainment terminal is controlled to enable the second sound data processing unit, so that the user voice signal collected by the second audio recording unit is converted into network data that conforms to a preset protocol through the second sound data processing unit, and transmitted to the emergency call interaction unit and the emergency call service unit, and finally communication is established with the external rescue platform; and the network data transmitted back by the emergency call interaction unit is restored to an audio signal through the second sound data processing unit and output to the second audio playback unit, so as to realize the voice interaction function.

[0075] In this way, under the premise of a failure of the first sound system, the second sound system is ensured to operate normally and the communication connection between the emergency call interaction unit and the emergency call service unit is normal, and then the in-vehicle entertainment terminal is controlled to enable the second sound data processing unit to ensure that when the second sound system is used, the second sound system can effectively communicate with the external rescue platform, thereby improving the efficiency of the method of this embodiment in effectively establishing emergency call voice interaction.

[0076] Optionally, the second sound data processing unit is provided with an audio data inflow port and a network data inflow port, the second sound system is communicatively connected to the second sound data processing unit via the audio data inflow port, and the emergency call interaction unit is communicatively connected to the second sound data processing unit via the network data inflow port.

[0077] Specifically, the second sound data processing unit realizes data inflow (or input) through the corresponding port, and is convenient for monitoring the input data based on the port, ensuring real-time tracking of the input data status and timely response. Among them, the second sound data processing unit is provided with an audio data inflow port and a network data inflow port, and these two ports receive audio data and network data respectively. The audio data inflow port is responsible for receiving audio data from the second sound system, and the audio data output by the second sound system flows into the second sound data processing unit through this port; the monitoring of audio data includes real-time detection of the presence or absence of data, the transmission quality of data, the integrity of the audio signal, etc. The network data inflow port is responsible for receiving network data transmitted from the external rescue platform via the wireless communication unit and the emergency call interaction unit; the monitoring of network data includes real-time detection of the presence or absence of data, whether the data complies with the network transmission protocol, and the delay of data, etc.

[0078] After the in-vehicle entertainment terminal is controlled to enable the second sound data processing unit, when the first sound system fails and the second sound system operates normally, using the second sound system to perform language interaction for emergency calls also includes:

[0079] When there is audio data input into the second sound data processing unit through the audio data inflow port, the audio data is converted into network data that complies with the preset protocol by the second sound data processing unit and output to the emergency call interaction unit; when there is network data that complies with the preset protocol and is input into the second sound data processing unit through the network data inflow port, the network data is converted into audio data by the second sound data processing unit and output to the second sound system.

[0080] Specifically, when network data that complies with the preset protocol is input into the second sound data processing unit through the network data inflow port, that is, when network data input is detected at the network data inflow port, and the network data complies with the preset protocol, the network data can be converted into audio data by the second sound data processing unit, and the converted audio data is output to the second sound system for playback. In this way, timely response to input network data that complies with the preset protocol is achieved, the efficiency of emergency call voice interaction is improved, and key information can be quickly and clearly conveyed in an emergency, thereby providing sufficient time and effective information for rescue services.

[0081] When audio data is input into the second sound data processing unit through the audio data inflow port, that is, when audio data input is detected at the audio data inflow port, the audio data can be converted into network data that conforms to the preset protocol through the second sound data processing unit, and the converted network data is output to the emergency call interaction unit, so as to achieve effective communication with the external rescue platform through the emergency call service unit and the wireless communication unit. In this way, timely response to the audio data output by the user is achieved, the efficiency of emergency call voice interaction is improved, and key information can be quickly and clearly conveyed in an emergency, thereby providing sufficient time and effective information for rescue services.

[0082] Optionally, when the first sound system fails and the second sound system operates normally, using the second sound system to perform language interaction for emergency calls includes:

[0083] When the first sound system fails, the second sound system operates normally, and the communication connection between the emergency call interaction unit and the emergency call service unit is abnormal, a network recovery process is performed until the communication connection between the emergency call interaction unit and the emergency call service unit is normal, and the in-vehicle entertainment terminal is controlled to enable the second sound data processing unit.

[0084] Specifically, in order to ensure that the vehicle can still perform normal voice interaction for emergency calls when the first sound system fails, the second sound system of the in-vehicle entertainment terminal is used as a backup sound system to implement a redundant design of the sound system for emergency call voice interaction, thereby improving the ability of the vehicle's emergency call system to cope with failures and the safety performance of the vehicle. Since the in-vehicle entertainment terminal also includes a second sound data processing unit, when the first sound system fails, the second sound system operates normally, and the communication connection between the emergency call interaction unit and the emergency call service unit is abnormal, a network recovery process is performed until the communication connection between the emergency call interaction unit and the emergency call service unit is normal, and then the in-vehicle entertainment terminal is controlled to enable the second sound data processing unit.

[0085] For example, after the vehicle is powered on, when a fault is detected in the first sound system (for example, the speaker or microphone of the first sound system fails, or the sound control unit is abnormal), the operating status of the second sound system is further detected. If it is detected that the second sound system is operating normally, but the communication connection between the emergency call interaction unit and the emergency call service unit is abnormal, it means that the emergency call interaction unit and the emergency call service unit cannot communicate normally. At this time, the second sound system is also unable to realize the voice interaction of the emergency call. In this regard, it is necessary to restore the normal communication between the emergency call interaction unit and the emergency call service unit. The network recovery process can be performed, such as automatically diagnosing and processing the connection problem between the emergency call interaction unit and the emergency call service unit to restore the effective connection between the emergency call interaction unit and the emergency call service unit; once the recovery is successful, the vehicle entertainment terminal is controlled to enable the second sound data processing unit to ensure the correct processing and transmission of voice data during emergency calls and realize the voice interaction function.

[0086] In this way, under the premise of a failure of the first sound system, the second sound system is ensured to operate normally and the communication connection between the emergency call interaction unit and the emergency call service unit is normal, and then the vehicle entertainment terminal is controlled to enable the second sound data processing unit to ensure that when the second sound system is used, the second sound system can effectively communicate with the external rescue platform, thereby improving the efficiency of the method of this embodiment in effectively establishing emergency call voice interaction; and when the communication connection between the emergency call interaction unit and the emergency call service unit is abnormal, timely processing is performed to promote the emergency call interaction unit and the emergency call service unit to restore normal communication connection.

[0087] Optionally, the network recovery process includes automatic diagnosis and processing of network connection, automatic switching or restarting of corresponding communication modules, etc. Wherein, when there are multiple groups of communication modules for communication between the emergency call interaction unit and the emergency call service unit, the network recovery process can be achieved by automatically switching corresponding communication modules.

[0088] Optionally, during the network recovery process, if the number of attempts is greater than a first preset threshold and the normal communication connection between the emergency call interaction unit and the emergency call service unit is still not achieved, an alarm message is generated, an error is reported, and manual intervention is prompted to resolve the issue.

[0089] Combination Figure 5 As shown, another embodiment of the present invention provides a vehicle emergency call device, based on a vehicle emergency call system, the vehicle emergency call system includes a first sound system and a second sound system for a vehicle entertainment terminal, the first sound system and the second sound system are respectively used to communicate with the vehicle communication terminal of the vehicle; the vehicle emergency call device includes:

[0090] a trigger response unit, configured to obtain the operating status of the first sound system and the second sound system in response to a trigger signal regarding the vehicle emergency call system;

[0091] The sound system selection unit is used to use the first sound system to perform language interaction for emergency calls when the first sound system operates normally; when the first sound system fails and the second sound system operates normally, use the second sound system to perform language interaction for emergency calls.

[0092] The vehicle emergency call device of this embodiment is used to implement the above-mentioned vehicle emergency call method. Its advantages over the prior art are the same as the advantages of the above-mentioned vehicle emergency call method over the prior art, and will not be repeated here.

[0093] Combination Figure 6 As shown, another embodiment of the present invention provides a vehicle, including a memory 601 and a processor 602;

[0094] Memory 601, used for storing computer programs;

[0095] The processor 602 is used to implement the above-mentioned vehicle emergency call method when executing the computer program.

[0096] In other words, a vehicle includes a memory 601 and a processor 602 coupled to the memory 601; the memory 601 is configured to store a computer program; and the processor 602 is configured to perform the following operations when executing the computer program:

[0097] In response to a trigger signal regarding the vehicle emergency call system, acquiring the operating status of the first sound system and the second sound system;

[0098] When the first sound system operates normally, the first sound system is used for language interaction for emergency calls; when the first sound system fails and the second sound system operates normally, the second sound system is used for language interaction for emergency calls.

[0099] The vehicle of this embodiment can be used to implement the above-mentioned vehicle emergency call method. Its advantages over the prior art are the same as the advantages of the above-mentioned vehicle emergency call method over the prior art, and will not be repeated here.

[0100] Another embodiment of the present invention provides a computer-readable storage medium, which stores a computer program. When the computer program is read and executed by a processor, the above-mentioned vehicle emergency call method is implemented.

[0101] In other words, a non-volatile computer-readable storage medium stores a computer program, which, when executed by a processor, causes the processor to perform the following operations:

[0102] In response to a trigger signal regarding the vehicle emergency call system, acquiring the operating status of the first sound system and the second sound system;

[0103] When the first sound system operates normally, the first sound system is used for language interaction for emergency calls; when the first sound system fails and the second sound system operates normally, the second sound system is used for language interaction for emergency calls.

[0104] The technical solution of the embodiment of the present invention, in essence or in other words, the part that contributes to the prior art, or the whole or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for making a computer device (which can be a personal computer, server, or network device, etc.) or a processor perform all or part of the steps of the method of the embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

[0105] The computer-readable storage medium of this embodiment can be used to implement the above-mentioned vehicle emergency call method. Its advantages over the prior art are the same as the advantages of the above-mentioned vehicle emergency call method over the prior art, and will not be repeated here.

[0106] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A vehicle emergency call method, characterized in that: Based on a vehicle emergency call system, the vehicle emergency call system includes a first sound system and a second sound system for an in-vehicle entertainment terminal, wherein the first sound system and the second sound system are respectively used for communication connection with an in-vehicle communication terminal of the vehicle; The vehicle emergency call method comprises: In response to a trigger signal regarding the vehicle emergency call system, acquiring operating states of the first sound system and the second sound system; When the first sound system operates normally, the first sound system is used for language interaction for emergency calls; when the first sound system fails and the second sound system operates normally, the second sound system is used for language interaction for emergency calls.

2. The vehicle emergency call method according to claim 1, characterized in that: The vehicle-mounted communication terminal includes an emergency call service unit and a wireless communication unit for wirelessly connecting to a base station, and the first sound system is connected to the wireless communication unit through the emergency call service unit; The in-vehicle entertainment terminal further includes an emergency call interaction unit, and the second sound system is communicatively connected with the emergency call service unit through the emergency call interaction unit; Before obtaining the operating states of the first sound system and the second sound system in response to the trigger signal of the vehicle emergency call system, the vehicle emergency call method further includes: In response to a vehicle power-on instruction, controlling the vehicle communication terminal and the vehicle entertainment terminal to start; When the emergency call service unit of the vehicle-mounted communication terminal is started up and the emergency call interaction unit of the vehicle-mounted entertainment terminal is started up, the emergency call service unit is controlled to communicate with the emergency call interaction unit; wherein, when the emergency call service unit is started up and the emergency call interaction unit is not started up, it is determined again whether the emergency call interaction unit is started up after a first preset time period.

3. The vehicle emergency call method according to claim 2, characterized in that: After controlling the emergency call service unit to establish a communication connection with the emergency call interaction unit, the vehicle emergency call method further includes: The operating status of the second sound system is obtained and saved, and emergency call trigger monitoring is started.

4. The vehicle emergency call method according to claim 2, characterized in that: The vehicle-mounted communication terminal also includes a first sound data processing unit, and the first sound system is communicatively connected to the wireless communication unit via the first sound data processing unit and the emergency call service unit in sequence; the vehicle-mounted entertainment terminal also includes a second sound data processing unit, and the second sound system is communicatively connected to the emergency call service unit via the second sound data processing unit and the emergency call interaction unit in sequence; the first sound data processing unit and the second sound data processing unit are both used to convert input audio data into network data for network transmission that complies with a preset protocol and output it, and to convert the input network data that complies with the preset protocol into the audio data and output it.

5. The vehicle emergency call method according to claim 4, characterized in that: When the first sound system fails and the second sound system operates normally, using the second sound system to perform language interaction for emergency calls includes: When the first sound system fails, the second sound system operates normally, and the emergency call interaction unit is in normal communication connection with the emergency call service unit, the in-vehicle entertainment terminal is controlled to enable the second sound data processing unit.

6. The vehicle emergency call method according to claim 5, characterized in that: The second sound data processing unit is provided with an audio data inflow port and a network data inflow port, the second sound system is communicatively connected to the second sound data processing unit via the audio data inflow port, and the emergency call interaction unit is communicatively connected to the second sound data processing unit via the network data inflow port; After controlling the in-vehicle entertainment terminal to enable the second sound data processing unit, when the first sound system fails and the second sound system operates normally, using the second sound system to perform language interaction for emergency calls also includes: When the audio data is input into the second sound data processing unit through the audio data inflow port, the audio data is converted into the network data that complies with the preset protocol by the second sound data processing unit and output to the emergency call interaction unit; when the network data that complies with the preset protocol is input into the second sound data processing unit through the network data inflow port, the network data is converted into the audio data by the second sound data processing unit and output to the second sound system.

7. The vehicle emergency call method according to claim 4, characterized in that: When the first sound system fails and the second sound system operates normally, using the second sound system to perform language interaction for emergency calls includes: When the first sound system fails, the second sound system operates normally, and the communication connection between the emergency call interaction unit and the emergency call service unit is abnormal, a network recovery process is performed until the communication connection between the emergency call interaction unit and the emergency call service unit is normal, and the in-vehicle entertainment terminal is controlled to enable the second sound data processing unit.

8. A vehicle emergency call device, characterized in that: Based on a vehicle emergency call system, the vehicle emergency call system includes a first sound system and a second sound system for an in-vehicle entertainment terminal, wherein the first sound system and the second sound system are respectively used for communication connection with an in-vehicle communication terminal of the vehicle; The vehicle emergency call device comprises: a trigger response unit, configured to obtain the operating states of the first sound system and the second sound system in response to a trigger signal regarding the vehicle emergency call system; The sound system selection unit is used to use the first sound system to perform language interaction for emergency calls when the first sound system operates normally; when the first sound system fails and the second sound system operates normally, use the second sound system to perform language interaction for emergency calls.

9. A vehicle, characterized in that: including memory and processor; The memory is used to store computer programs; The processor is used to implement the vehicle emergency call method according to any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is read and executed by a processor, the vehicle emergency call method according to any one of claims 1 to 7 is implemented.

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