Communication method and apparatus

Abstract

The application relates to a communication method and device. The method comprises the following steps: in response to an accident of a vehicle, selecting a target communication device from preset terminals and a public safety answering point (PSAP) according to a communication priority of the preset terminals and the PSAP; wherein the preset terminals are communication terminals of accident contacts associated with the vehicle; in response to the target communication device only comprising the PSAP, sending communication data to the PSAP to establish a communication connection with the PSAP, and recording a communication process with the PSAP to obtain communication audio data; in response to the communication with the PSAP being ended, sending a target communication request to the preset terminals to establish a communication connection with the preset terminals, and playing the communication audio data to the preset terminals. The method can enable the accident contacts associated with the vehicle to learn relevant information of the vehicle accident in time after the accident of the vehicle.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method and apparatus. Background Technology

[0002] With the rapid development of new energy and intelligent assisted driving, new energy vehicles and assisted driving technologies have become two core directions for the current automotive industry development, and are driving the intelligentization, greening, and efficiency of transportation through rapid iteration. eCall (emergency call system), as an important component of intelligent vehicle safety systems, plays a crucial role in advanced driver assistance systems and vehicle-to-everything (V2X) applications.

[0003] Traditional technologies focus on unilaterally triggering the connection between eCall and PSAP (Public Safety Answering Point). In scenarios where vehicle occupants are seriously injured, accident contacts (such as pre-set emergency contacts) may find it difficult to understand the specific details of the accident in a timely manner, which can easily lead to information silos. As a result, communication efficiency is low, making it difficult for emergency contacts to effectively coordinate rescue efforts. Summary of the Invention

[0004] Therefore, it is necessary to provide a communication method and device to address the aforementioned technical problems, so that the accident contact person associated with the vehicle can promptly learn about relevant information about the vehicle accident after the accident occurs.

[0005] In a first aspect, this application provides a communication method, including:

[0006] In response to a vehicle accident, a target communication device is selected from the preset terminal and the PSAP based on the communication priority of the preset terminal and the public safety response point; wherein, the preset terminal is the communication terminal of the accident contact person associated with the vehicle;

[0007] In response to the target communication device consisting only of a PSAP, communication data is sent to the PSAP to establish a communication connection with the PSAP, and the communication process with the PSAP is recorded to obtain communication audio data;

[0008] In response to the termination of communication with PSAP, a target communication request is sent to a preset terminal to establish a communication connection with the preset terminal and to play communication audio data to the preset terminal.

[0009] In one embodiment, a minimum data set (MSD) is sent to the PSAP, and a communication connection is established with the PSAP based on a first communication request from the PSAP in response to the MSD; wherein the MSD includes at least the vehicle's location information; or, a communication request carrying the MSD is sent to the PSAP to establish a communication connection with the PSAP.

[0010] In one embodiment, the method further includes: in response to receiving a second communication request sent by a preset terminal during communication with PSAP, sending a first prompt message to the preset terminal; wherein the first prompt message is used to indicate that communication with PSAP is currently in progress.

[0011] In one embodiment, the method further includes: in response to the failure to establish a communication connection with a preset terminal, continuously sending communication requests to the preset terminal until the number of times the communication requests are sent reaches a preset number.

[0012] In one embodiment, the method further includes: in response to receiving a third communication request sent by PSAP during communication with a preset terminal, suspending communication with the preset terminal and establishing a communication connection with PSAP; sending a second prompt message to the preset terminal; wherein the second prompt message is used to indicate that a communication request sent by PSAP has been received.

[0013] In one embodiment, suspending communication with a preset terminal includes any of the following: suspending communication with the preset terminal in response to a suspension operation for a third communication request; suspending communication with the preset terminal in response to the request duration of the third communication request reaching a preset duration threshold.

[0014] In one embodiment, the method further includes: receiving a communication join request sent by a preset terminal in response to a communication suspension; and establishing a three-way communication connection between the vehicle terminal, the preset terminal, and the PSAP in response to an allow operation on the communication join request.

[0015] In one embodiment, the method further includes: in response to the target communication device including a preset terminal and a PSAP, sending a three-way communication request to the preset terminal and the PSAP; and in response to receiving a response message from the preset terminal and / or the PSAP in response to the three-way communication request, establishing a communication connection with the sender of the response message.

[0016] In one embodiment, the method further includes any one of the following: in response to not receiving a response message from a preset terminal, sending a first message to a preset terminal; wherein the first message is used to indicate a request to establish a communication connection; in response to not receiving a response message from the PSAP, sending a second message to the PSAP; wherein the second message includes at least the vehicle's location information; in response to not receiving response messages from both the preset terminal and the PSAP, continuously sending a three-way communication request to both the preset terminal and the PSAP until a response message is received from the preset terminal and / or the PSAP.

[0017] Secondly, this application also provides a communication device, comprising:

[0018] The selection module is used to select a target communication device from the preset terminals and PSAPs in response to a vehicle accident, based on the communication priority of the preset terminals and the public safety response points (PSAPs); wherein the preset terminals are the communication terminals of the accident contact persons associated with the vehicle.

[0019] The first communication module is used to send communication data to the PSAP in response to the target communication device consisting only of the PSAP, in order to establish a communication connection with the PSAP, and to record the communication process with the PSAP to obtain communication audio data.

[0020] The second communication module is used to send a target communication request to a preset terminal in response to the end of communication with PSAP, so as to establish a communication connection with the preset terminal and play communication audio data to the preset terminal.

[0021] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the various method embodiments of the first aspect described above.

[0022] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps in the method embodiments of the first aspect described above.

[0023] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps in the method embodiments of the first aspect described above.

[0024] The aforementioned communication method and apparatus, in response to a vehicle accident, selects a target communication device from the preset terminal and the PSAP according to their communication priorities. The preset terminal is the communication terminal of the accident contact person associated with the vehicle. If the target communication device only includes the PSAP, communication data is sent to the PSAP to establish a communication connection, and the communication process with the PSAP is recorded to obtain communication audio data. Upon termination of communication with the PSAP, a target communication request is sent to the preset terminal to establish a communication connection, and the communication audio data is played back to the preset terminal. In this way, in the event of a vehicle accident, the communication connection between the vehicle-mounted terminal and the preset terminal can be actively triggered, ensuring that the accident contact person associated with the vehicle can understand the accident situation and rescue progress based on the communication audio data. This overcomes the information gap problem caused by accident contacts only passively receiving third-party notifications in traditional technologies, thereby improving the information exchange capability and communication efficiency of multi-party collaborative rescue after a vehicle accident. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a diagram illustrating the application environment of the communication methods in some embodiments of this application;

[0027] Figure 2 This is a flowchart illustrating the communication method in some embodiments of this application;

[0028] Figure 3 This is a schematic diagram illustrating the process of establishing a communication connection with PSAP in some embodiments of this application;

[0029] Figure 4 This is a schematic diagram illustrating the process of establishing a communication connection with PSAP in other embodiments of this application;

[0030] Figure 5 This is a schematic diagram illustrating the process of establishing a three-party communication connection in some embodiments of this application;

[0031] Figure 6 This is a schematic diagram illustrating the process of establishing a communication connection between the sender of the response message and the recipient in some embodiments of this application;

[0032] Figure 7 This is a flowchart illustrating the communication method in some other embodiments of this application;

[0033] Figure 8 This is a structural block diagram of the communication device in some embodiments of this application;

[0034] Figure 9 An internal structural diagram of a computer device provided in one embodiment of this application;

[0035] Figure 10 This is an internal structure diagram of a chip module provided in one embodiment of this application. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0037] It should be noted that the terms "first," "second," etc., used in this application can be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from the second element. The terms "comprising" and "having," and any variations thereof, used in this application, are intended to cover non-exclusive inclusion. The term "multiple" used in this application refers to two or more. The term "and / or" used in this application refers to one of the embodiments or any combination of multiple embodiments.

[0038] In traditional technology, when a vehicle accident occurs, the on-board terminal can only send MSD (Minimum Set of Data) to the PSAP to trigger the communication connection between eCall and PSAP. In scenarios where the injuries to the vehicle's occupants are relatively serious, the accident contact person (such as the preset emergency contact person) may have difficulty understanding the specific situation of the vehicle accident in a timely manner, which may lead to information silos. Therefore, the communication efficiency is low, making it difficult for emergency contacts to effectively coordinate rescue efforts.

[0039] In view of this, in order to solve the above-mentioned technical problems, a communication method is provided in an exemplary embodiment. The method can be applied to a computer device, which may be an in-vehicle terminal.

[0040] In one exemplary embodiment, the above communication method can be executed by a device such as a chip or a chip module.

[0041] In one exemplary embodiment, the communication method provided in this application can be applied to, for example, Figure 1 In the application environment shown, the vehicle-mounted terminal 102 communicates with the preset terminal 104 and the PSAP via a network. A data storage system can store the data that the vehicle-mounted terminal 102 needs to process. The data storage system can be integrated into the vehicle-mounted terminal 102 or placed in the cloud or on another network server. The communication priority between the preset terminal and the PSAP can be stored in the data storage system, allowing the vehicle-mounted terminal 102 to obtain the communication priority from the data storage system to execute the communication method provided in this embodiment.

[0042] In one exemplary embodiment, such as Figure 2 As shown, a communication method is provided, which is applied to Figure 1 Taking the vehicle-mounted terminal 102 as an example, the explanation may include the following steps: [Insert steps here]

[0043] S201, in response to a vehicle accident, selects a target communication device from the preset terminal and PSAP according to the communication priority of the preset terminal and PSAP.

[0044] The default terminal is the communication terminal of the accident contact person associated with the vehicle, such as the smartphone of the accident contact person associated with the vehicle. PSAP can be a terminal for public safety agencies such as traffic police and ambulance dispatch centers that are responsible for receiving vehicle emergency calls and dispatching rescue.

[0045] Optionally, the vehicle-associated accident contacts and the communication priorities between the preset terminal and PSAP can be preset by the vehicle driver.

[0046] Optionally, if the communication priority of the preset terminal is higher than the communication priority of the PSAP, the preset terminal can be identified as the target communication device in response to a vehicle accident; if the communication priority of the PSAP is higher than the communication priority of the preset terminal, the PSAP can be identified as the target communication device in response to a vehicle accident.

[0047] Furthermore, if the communication priority of the preset terminal is the same as that of the PSAP, in response to a vehicle accident, it can be determined that the PSAP and the preset terminal are both target communication devices.

[0048] It should be noted that the number of preset terminals can be set according to actual needs. This application embodiment does not limit this. For example, the number of preset terminals can be one or more.

[0049] S202, in response to the target communication device including only PSAP, send communication data to PSAP to establish a communication connection with PSAP, and record the communication process with PSAP to obtain communication audio data.

[0050] Among them, communication data refers to a set of standard emergency data sent by the vehicle terminal to the target communication device after a vehicle accident.

[0051] Optionally, after the vehicle-mounted terminal sends communication data to the PSAP, the PSAP's display unit can directly display the vehicle-related information included in the communication data. Therefore, staff can promptly understand the vehicle's status based on the communication data to dispatch ambulances and traffic police resources, and initiate communication requests to the vehicle to establish a communication connection between the vehicle-mounted terminal and the PSAP. Alternatively, the vehicle-mounted terminal can directly send a communication request to the PSAP, and this request can carry communication data. In this case, the PSAP's display unit can directly display the vehicle-related information included in the communication data. Therefore, staff can promptly understand the vehicle's status based on the communication data to dispatch ambulances and traffic police resources, and can respond to communication requests sent by the vehicle-mounted terminal to establish a communication connection between the vehicle-mounted terminal and the PSAP.

[0052] During a conversation between the vehicle's occupants and PSAP staff, the in-vehicle terminal can record the communication and store the audio data, for example, in the in-vehicle terminal's data storage system.

[0053] S203, in response to the termination of communication with PSAP, sends a target communication request to a preset terminal to establish a communication connection with the preset terminal and plays communication audio data to the preset terminal.

[0054] Optionally, after the call between the vehicle occupants and the PSAP staff ends, the communication connection between the vehicle terminal and the PSAP is disconnected. At this time, the vehicle terminal sends a target communication request to a preset terminal so that the accident contact person corresponding to the preset terminal can obtain the target communication request and establish a communication connection between the preset terminal and the vehicle terminal. Furthermore, considering that the vehicle occupants are in a worsening condition and cannot easily speak due to physical exertion, the previously stored communication audio data can be played directly to the preset terminal so that the accident contact person can understand the injury status of the vehicle occupants, the damage to the vehicle, and the progress of the rescue based on the communication audio data.

[0055] Optionally, the accident contact person corresponding to the preset terminal can set the prompt form corresponding to the target communication request of the vehicle terminal according to the needs. This application embodiment does not limit this. For example, it can be set to a special prompt ringtone (such as a sharp alarm sound or a vibration prompt sound) to remind the accident contact person to pay special attention to the target communication request, or it can be set to the same form of prompt as a normal incoming call.

[0056] Optionally, the accident contact person corresponding to the preset terminal can choose whether to establish a communication connection with the vehicle terminal according to the actual situation. If the accident contact person is currently busy, a rejection operation can be performed through the control component configured in the preset terminal, thereby temporarily not establishing a communication connection with the vehicle terminal.

[0057] Optionally, after the communication connection between the vehicle terminal and the preset terminal is established, the vehicle occupants can select the playback mode of the communication audio data through the control component, or, if the vehicle occupants are no longer able to move, select the playback mode of the communication audio data according to preset playback rules. Playback modes include speed adjustment, priority playback of key segments, and loop playback.

[0058] Furthermore, when there are multiple preset terminals, the vehicle terminal can select the preset terminal with the highest communication priority to initiate the target communication request to establish a communication connection, or it can send the target communication request to multiple preset terminals simultaneously.

[0059] The aforementioned communication method, in response to a vehicle accident, selects a target communication device from the preset terminal and the PSAP according to their communication priorities. The preset terminal is the communication terminal of the accident contact person associated with the vehicle. If the target communication device only includes the PSAP, communication data is sent to the PSAP to establish a communication connection, and the communication process with the PSAP is recorded to obtain communication audio data. Upon termination of communication with the PSAP, a target communication request is sent to the preset terminal to establish a communication connection, and the communication audio data is played back to the preset terminal. In this way, in the event of a vehicle accident, the communication connection between the vehicle terminal and the preset terminal can be actively triggered, ensuring that the accident contact person associated with the vehicle can understand the accident situation and rescue progress based on the communication audio data. This overcomes the information gap problem caused by accident contacts only passively receiving third-party notifications in traditional technologies, thereby improving the information exchange capability and communication efficiency of multi-party collaborative rescue after a vehicle accident.

[0060] Based on the above embodiments, in an exemplary embodiment, such as Figure 3 As shown, the above-mentioned method of sending communication data to the PSAP to establish a communication connection with the PSAP specifically includes the following steps:

[0061] S301, send MSD to PSAP, and establish a communication connection with PSAP based on the first communication request fed back by PSAP in response to MSD.

[0062] The MSD includes at least the vehicle's location information. Optionally, the MSD may also include vehicle identification, accident time, accident type, number of occupants, and other relevant data.

[0063] Optionally, when sending MSD to PSAP, the standardized transmission protocol of the vehicle terminal in emergency call mode can be used to ensure the integrity and real-time performance of MSD during transmission and avoid PSAP rescue dispatch errors due to data loss or communication delays.

[0064] The first communication request is a communication request initiated by the PSAP to the vehicle terminal after successfully receiving and parsing the MSD from the vehicle terminal, in order to establish a communication connection between the vehicle terminal and the PSAP.

[0065] Optionally, after receiving the MSD, PSAP staff can send a first communication request to the vehicle terminal.

[0066] Optionally, after receiving the first communication request, the vehicle terminal can automatically establish a communication connection with PSAP and communicate with PSAP staff.

[0067] Optionally, after the call between the vehicle terminal and the PSAP ends, PSAP staff may proactively initiate a supplementary communication request to the vehicle terminal (such as sending the first communication request to the vehicle terminal again) to re-establish the communication connection between the vehicle terminal and the PSAP in order to confirm additional rescue dispatch information after confirming rescue resources or to confirm accident details and other urgent needs.

[0068] Based on the above embodiments, in an exemplary embodiment, sending communication data to the PSAP to establish a communication connection with the PSAP specifically includes: sending a communication request carrying an MSD to the PSAP to establish a communication connection with the PSAP.

[0069] Optionally, the vehicle terminal can proactively send a communication request to the PSAP, and the communication request carries the MSD. Accordingly, the PSAP staff can respond to the communication request to obtain relevant data such as the vehicle's location information and establish a communication connection with the vehicle terminal.

[0070] This embodiment sends a Vehicle Location Data Sheet (MSD) containing vehicle location information to the Power Supply and Access Control Platform (PSAP), and then establishes a communication connection based on the first communication request returned by the PSAP. This allows the PSAP to quickly obtain core rescue data such as vehicle location based on the standardized MSD. Alternatively, a communication connection can be established with the PSAP by sending a communication request carrying the MSD, enabling the PSAP to proactively dispatch rescue resources such as ambulances and traffic police, significantly improving the real-time nature of the rescue response. Simultaneously, establishing a communication connection based on the first communication request returned by the PSAP or a communication request sent by the vehicle terminal ensures the stability and reliability of the communication connection between the vehicle terminal and the PSAP, further improving communication efficiency.

[0071] Based on the above embodiments, in an exemplary embodiment, the communication method further includes: in response to receiving a second communication request sent by a preset terminal during communication with PSAP, sending a first prompt message to the preset terminal.

[0072] The first prompt message is used to indicate that communication with PSAP is currently in progress. The prompt message can be in the form of a pre-set accident contact person corresponding to the preset terminal, such as voice broadcast, SMS, pop-up prompt, or one or more combinations thereof.

[0073] For example, you can directly send a text message to a pre-set terminal saying, "The vehicle has been involved in an accident. The driver and passengers are communicating with PSAP. Please initiate a second communication request later."

[0074] The second communication request is a communication request initiated by the preset terminal to the vehicle terminal during the process of maintaining a communication connection between the vehicle terminal and the PSAP, such as a voice call or video call.

[0075] Optionally, when multiple preset terminals initiate a second communication request to the vehicle terminal while maintaining a communication connection between the vehicle terminal and the PSAP, the vehicle terminal can simultaneously send a first prompt message to the multiple preset terminals. In addition, the vehicle terminal can record and store the time sequence of each second communication request so that after the communication connection with the PSAP is disconnected, a communication connection is established with the preset terminal that initiated the second communication request first.

[0076] In this embodiment, when a second communication request from a preset terminal is received during the communication process between the vehicle-mounted terminal and the PSAP, a first notification message indicating that communication with the PSAP is currently in progress is sent to the preset terminal. This effectively avoids interference between the preset terminal's call and the communication between the PSAP and the vehicle-mounted terminal, ensuring the continuity of rescue communication. At the same time, it also allows accident contacts to be informed in a timely manner that an accident has occurred at the vehicle-mounted terminal, preventing accident contacts from repeatedly calling due to the vehicle-mounted terminal not being reachable. This overcomes the deficiency of traditional technologies in that there is no status notification when multiple communication requests conflict, thus improving communication efficiency.

[0077] Based on the above embodiments, in an exemplary embodiment, the communication method further includes: in response to the failure to establish a communication connection with a preset terminal, continuously sending communication requests to the preset terminal until the number of times the communication requests are sent reaches a preset number.

[0078] In this context, "communication connection establishment failure" indicates that after the vehicle-mounted terminal sends a target communication request to a preset terminal, the preset terminal fails to successfully establish a two-way communication connection with the vehicle-mounted terminal due to reasons such as being powered off, having a poor signal, being unanswered, or having a busy line. The preset number of attempts can be a threshold set by the vehicle driver according to actual needs for the vehicle-mounted terminal to repeatedly send communication requests, for example, 3 times or 5 times.

[0079] Optionally, in the event that the communication connection with the preset terminal fails to be established, the time interval between each communication request sent by the vehicle terminal can also be preset, such as once every 30 seconds or 60 seconds, to avoid wasting communication resources or affecting important calls related to accidents to the preset terminal caused by sending requests continuously in a short period of time.

[0080] Optionally, after the number of communication requests has reached a preset number, the vehicle terminal stops sending communication requests to the current preset terminal. It can parse the communication audio data locally, extract important information, and send the important information to the preset terminal via SMS or other means.

[0081] Furthermore, when there are multiple preset terminals, after the number of times the vehicle terminal sends communication requests to the preset terminal with the highest communication priority has reached a preset number, it can stop sending communication requests to the preset terminal with the highest communication priority and determine the preset terminal with the second highest communication priority, so as to start continuously initiating communication requests to the preset terminal with the second highest communication priority at preset time intervals.

[0082] In this embodiment, when the communication connection with the preset terminal fails to be established, communication requests are continuously sent to the preset terminal until a preset number of times are reached. This can effectively avoid the technical problem of untimely communication connection establishment caused by accidental factors such as network fluctuations, temporary unresponsiveness of the preset terminal, or no one answering the call, thereby improving the success rate of establishing a communication connection between the vehicle terminal and the preset terminal. In addition, by setting a preset number of times, the waste of resources caused by the vehicle terminal sending communication requests to the preset terminal indefinitely is avoided.

[0083] Based on the above embodiments, in an exemplary embodiment, such as Figure 4 As shown, the above communication method specifically includes the following steps:

[0084] S401, in response to receiving a third communication request sent by PSAP during communication with a preset terminal, suspends communication with the preset terminal and establishes a communication connection with PSAP.

[0085] Among them, the third communication request can be a supplementary communication request initiated by PSAP to the vehicle terminal while the vehicle terminal is maintaining a communication connection with the preset terminal. It usually reflects the urgent needs of PSAP to provide supplementary rescue dispatch information or confirm accident details after confirming rescue resources.

[0086] Optionally, during the process of maintaining a communication connection between the vehicle terminal and the preset terminal, upon receiving a third communication request sent by the PSAP, in order to avoid missing important information that the PSAP wants to convey, the communication with the preset terminal can be temporarily suspended, and a communication connection with the PSAP can be established first.

[0087] Suspending is not the same as disconnecting; it only temporarily interrupts the real-time interaction with the preset terminal, but does not disconnect the communication link between the vehicle terminal and the preset terminal. In other words, after the communication connection between the vehicle terminal and PSAP is disconnected, the communication connection between the vehicle terminal and the preset terminal can be automatically restored.

[0088] S402, send a second prompt message to the preset terminal.

[0089] The second prompt message is used to indicate that a communication request has been received from PSAP. The form of the second prompt message can be preset by the vehicle driver, and this application does not limit it. For example, it can be in the form of voice broadcast, SMS prompt, pop-up window, etc.

[0090] For example, the second prompt message can be played to a preset terminal in the form of a voice broadcast, saying "The vehicle has received an emergency call from PSAP and is in the middle of a call. Please wait for the call to be restored."

[0091] In this embodiment, if a third communication request from the PSAP is received during communication between the vehicle-mounted terminal and the preset terminal, the communication with the preset terminal is suspended and a communication connection with the PSAP is established. Simultaneously, a second notification message indicating receipt of the PSAP communication request is sent to the preset terminal, ensuring that the PSAP's emergency rescue information can be promptly transmitted to the vehicle-mounted terminal, thus upholding its priority communication principle. Furthermore, the communication connection with the preset terminal is suspended rather than disconnected, temporarily preserving the communication link between the vehicle-mounted terminal and the preset terminal, providing a basis for subsequent communication restoration and improving the flexibility of communication dispatch. At the same time, the second notification message clearly informs the preset terminal of the reason for the communication suspension, avoiding misunderstandings by accident contacts and enhancing the interactivity and user-friendliness of multi-party communication dispatch.

[0092] Based on the above embodiments, in an exemplary embodiment, suspending communication with a preset terminal includes any of the following: suspending communication with the preset terminal in response to a suspension operation for a third communication request; suspending communication with the preset terminal in response to the request duration of the third communication request reaching a preset duration threshold.

[0093] The suspension operation is an operation initiated by the vehicle driver or passenger in response to the PSAP third communication request, such as operation of interactive components or voice or gesture commands.

[0094] Optionally, during the communication connection between the vehicle terminal and the preset terminal, upon receiving a third communication request sent by the PSAP, the communication with the preset terminal can be temporarily suspended by performing a suspension operation on the third communication request.

[0095] Furthermore, considering the difficulty of suspending the communication when the vehicle's occupants are immobile, a preset duration threshold for third communication requests can be pre-set. This allows the communication with the preset terminal to be proactively suspended when a third communication request is received from the PSAP and its duration reaches the preset duration threshold, while the vehicle terminal maintains a communication connection with the preset terminal. It should be noted that the preset duration threshold can be set according to requirements, and this embodiment does not impose any limitations on it.

[0096] This embodiment temporarily suspends the communication connection between the vehicle terminal and the preset terminal through two optional methods: suspension operation and automatic suspension when the request duration reaches a threshold. It takes into account two scenarios: when the vehicle occupants are capable of operating the device after an accident and when they are unable to operate it due to severe injuries. This better adapts to the complex scene after a vehicle accident, thereby ensuring that the PSAP's communication requests can be responded to in a timely manner, avoiding delays in the rescue process, and thus improving the universality and robustness of the communication method in emergency rescue scenarios.

[0097] Based on the above embodiments, in an exemplary embodiment, such as Figure 5 As shown, the above communication method specifically includes the following steps:

[0098] S501, Receive a communication join request sent by a preset terminal in response to a communication suspension.

[0099] Among them, the communication join request is a request initiated by the preset terminal to the vehicle terminal after the communication is suspended, requesting to join the current communication between the vehicle terminal and PSAP. The communication join request can be made by broadcasting a voice message through the vehicle terminal or by displaying a pop-up window through the vehicle terminal's display unit.

[0100] Optionally, after the accident contact person corresponding to the preset terminal learns from the second prompt information that the vehicle terminal is communicating with PSAP, they can choose whether to initiate a communication joining request to the preset terminal according to actual needs.

[0101] S502, in response to the permission operation for the communication joining request, establishes a three-way communication connection between the vehicle terminal, the preset terminal and the PSAP.

[0102] The permitted operation refers to the operation performed by the vehicle driver or passenger on the in-vehicle terminal, which agrees to the preset terminal joining the current communication. For example, the permitted operation can be a control interaction component, voice command, gesture command, etc.

[0103] Optionally, during the process of maintaining a communication connection between the vehicle terminal and the PSAP, upon receiving a communication join request sent by a preset terminal in response to a communication suspension, the vehicle driver and passengers can choose whether to perform an allow operation according to actual needs. Furthermore, in response to the allow operation for the communication join request, a three-way communication connection can be established between the vehicle terminal, the preset terminal, and the PSAP, enabling real-time information interaction between the vehicle terminal, the preset terminal, and the PSAP.

[0104] This embodiment receives a communication join request sent by a preset terminal in response to a communication suspension, and establishes a three-way communication connection between the vehicle terminal, the preset terminal, and the PSAP based on the allowed operation. This enables real-time voice and information interaction among the three parties during accident rescue, solving the technical problem of information gaps caused by the lack of multi-party interaction in traditional technologies where eCall can only communicate one-to-one with the PSAP and the preset terminal. Furthermore, it allows accident contacts to directly participate in the rescue communication between the vehicle terminal and the PSAP, and can provide additional rescue clues such as the condition of the vehicle occupants and vehicle background information to the PSAP in scenarios where the injuries to the vehicle occupants are too severe to facilitate extensive conversation. This provides more reference for the PSAP's rescue dispatch decision-making, thereby improving the accuracy of rescue dispatch.

[0105] Based on the above embodiments, in an exemplary embodiment, such as Figure 6 As shown, the above communication method specifically includes the following steps:

[0106] S601, in response to the target communication device including a preset terminal and a PSAP, sends a three-way communication request to the preset terminal and the PSAP.

[0107] Among them, the three-party communication request is a request sent simultaneously by the vehicle terminal to the preset terminal and PSAP, inviting both to jointly establish a multi-party communication connection.

[0108] Optionally, if the communication priority of the preset terminal and the PSAP is the same, the preset terminal and the PSAP can be used as the target communication device. In this case, a three-way communication request can be sent to the preset terminal and the PSAP simultaneously.

[0109] S602, in response to receiving a response message from a preset terminal and / or PSAP in response to a three-way communication request, establishes a communication connection with the sender of the response message.

[0110] The response message can be a response message sent by the preset terminal and / or PSAP to the vehicle terminal after receiving a three-way communication request from the vehicle terminal, indicating agreement to join the three-way communication connection.

[0111] Optionally, if the vehicle terminal only receives a response message from the PSAP, the vehicle terminal first establishes a bilateral communication connection with the PSAP, and at the same time continuously sends a three-way communication request to the preset terminal until it receives a response message from the preset terminal, and then converts the current bilateral communication into a three-way communication between the vehicle terminal, the preset terminal, and the PSAP; if the vehicle terminal only receives a response message from the preset terminal, the vehicle terminal first establishes a bilateral communication connection with the preset terminal, and at the same time continuously sends a three-way communication request to the PSAP until it receives a response message from the PSAP, and then converts the current bilateral communication into a three-way communication between the vehicle terminal, the preset terminal, and the PSAP.

[0112] Optionally, in the case of multiple preset terminals, the vehicle terminal can simultaneously send a three-way communication request to all preset terminals, and establish a communication connection with the preset terminal after receiving a response message from any preset terminal among the multiple preset terminals.

[0113] In this embodiment, when the target communication device includes both a preset terminal and a PSAP, a three-way communication request is sent synchronously to both the preset terminal and the PSAP. A communication connection is established with the sender of the response message based on the response message, which improves the efficiency of accident information transmission. At the same time, a communication connection is flexibly established according to the actual response situation, and contact is established with one or more parties that provide feedback response messages. This adapts to application scenarios where the preset terminal and the PSAP have the same communication priority, fills the gap in traditional technologies where a multi-party synchronous communication mechanism has not been established, and further improves the communication efficiency of multi-party collaborative rescue.

[0114] Based on the above embodiments, in an exemplary embodiment, the communication method further includes any one of the following: in response to not receiving a response message from a preset terminal, sending a first message to a preset terminal; in response to not receiving a response message from the PSAP, sending a second message to the PSAP; in response to not receiving response messages from both the preset terminal and the PSAP, continuously sending a three-way communication request to both the preset terminal and the PSAP until a response message is received from both the preset terminal and / or the PSAP.

[0115] The first message is used to indicate a request to establish a communication connection. Specifically, the first message can be any form of prompt initiated by the vehicle terminal to establish a communication connection with the corresponding preset terminal. In addition, the first message can also indicate whether the vehicle terminal has established a communication connection with the PSAP. The form of the first message can be preset by the vehicle driver according to actual needs. This application embodiment does not limit this. For example, the first message can be in the form of SMS, pop-up prompt, voice reminder, etc.

[0116] For example, the first message can be sent to the accident contact person via SMS with a notification that "a vehicle accident has occurred, please contact us immediately".

[0117] Optionally, in response to the failure to receive a response message from a preset terminal within a preset time threshold, a first message can be generated and sent to the corresponding preset terminal so that the accident contact person corresponding to the preset terminal can be informed of the accident involving the vehicle driver at their convenience.

[0118] The second message includes at least the vehicle's location information. In addition, the second message may also include relevant information such as vehicle identification, time of the accident, type of accident, and number of occupants.

[0119] Optionally, in response to the failure to receive a response message from PSAP within a preset time threshold, a second message can be generated and sent to PSAP so that PSAP can obtain the vehicle's location information in a timely manner before establishing a communication connection with the vehicle terminal, and deploy rescue in advance accordingly.

[0120] Optionally, in response to the failure to receive a response message from the preset terminal and PSAP, a three-way communication request can be continuously sent synchronously to the preset terminal and PSAP at preset time intervals to avoid excessive consumption of communication resources or interference to the preset terminal, until a response message is received from at least one of the preset terminal and PSAP and a corresponding communication connection is established.

[0121] This embodiment adopts differentiated processing methods for different scenarios where no preset terminal or PSAP response message is received, accurately solving the problems of accident information transmission and communication establishment in different no-response scenarios. It also solves the problem of no effective emergency handling methods in traditional technologies for no-response scenarios, further improving communication efficiency and rescue efficiency in extreme scenarios.

[0122] Based on the above embodiments, in an exemplary embodiment, such as Figure 7 As shown, the communication method may include the following steps:

[0123] S701, in response to a vehicle accident, selects a target communication device from the preset terminal and the public safety response point (PSAP) based on the communication priority of the preset terminal and the PSAP.

[0124] S702, in response to the target communication device consisting only of PSAP, sends communication data to PSAP to establish a communication connection with PSAP.

[0125] Specifically, sending communication data to the PSAP to establish a communication connection with the PSAP includes: sending a minimum data set (MSD) to the PSAP and establishing a communication connection with the PSAP based on a first communication request from the PSAP in response to the MSD; wherein the MSD includes at least the vehicle's location information; or, sending a communication request carrying the MSD to the PSAP to establish a communication connection with the PSAP.

[0126] S703, in response to receiving a second communication request from a preset terminal during communication with the PSAP, sends a first prompt message to the preset terminal.

[0127] S704, in response to the termination of communication with PSAP, sends a target communication request to a preset terminal to establish a communication connection with the preset terminal and plays communication audio data to the preset terminal.

[0128] Specifically, in response to the failure to establish a communication connection with the preset terminal, a communication request is continuously sent to the preset terminal until the number of communication requests sent reaches the preset number.

[0129] S705, in response to receiving a third communication request sent by PSAP during communication with a preset terminal, suspends communication with the preset terminal and establishes a communication connection with PSAP.

[0130] The suspension of communication with the preset terminal includes any of the following: suspending communication with the preset terminal in response to a suspension operation for a third communication request; suspending communication with the preset terminal in response to the request duration of the third communication request reaching a preset duration threshold.

[0131] S706, send a second prompt message to the preset terminal.

[0132] S707, receives a communication join request sent by a preset terminal in response to a communication suspension.

[0133] S708, in response to a permission operation for a communication joining request, establishes a three-way communication connection between the vehicle terminal, the preset terminal, and the PSAP.

[0134] S709, in response to the target communication device including a preset terminal and a PSAP, sends a three-way communication request to the preset terminal and the PSAP.

[0135] S710, in response to receiving a response message from a preset terminal and / or PSAP in response to a three-way communication request, establishes a communication connection with the sender of the response message.

[0136] In addition, in response to not receiving a response message from the preset terminal, a first message is sent to the preset terminal; wherein the first message is used to indicate a request to establish a communication connection; in response to not receiving a response message from the PSAP, a second message is sent to the PSAP; wherein the second message includes at least the vehicle's location information; in response to not receiving response messages from both the preset terminal and the PSAP, a three-way communication request is continuously sent to the preset terminal and the PSAP until a response message is received from the preset terminal and / or the PSAP.

[0137] The specific implementation methods of S701-S710 are the same as those in the above method embodiments, and will not be repeated here.

[0138] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages in other steps. It is understood that the steps in different embodiments can be freely combined as needed, and all non-contradictory solutions formed by such combinations are within the scope of protection of this application.

[0139] Based on the same inventive concept, this application also provides an image correction device for implementing the communication method described above. This device can be applied to or integrated into a chip or chip module, for example. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more image correction device embodiments provided below can be found in the limitations of the communication method above, and will not be repeated here.

[0140] In one exemplary embodiment, such as Figure 8 As shown, a communication device is provided, comprising: a selection module 810, a first communication module 820, and a second communication module 830, wherein:

[0141] The selection module 810 is used to select a target communication device from the preset terminal and the PSAP according to the communication priority of the preset terminal and the public safety response point (PSAP) in response to a vehicle accident; wherein the preset terminal is the communication terminal of the accident contact person associated with the vehicle.

[0142] The first communication module 820 is used to send communication data to the PSAP in response to the target communication device including only the PSAP, to establish a communication connection with the PSAP, and to record the communication process with the PSAP to obtain communication audio data.

[0143] The second communication module 830 is used to send a target communication request to a preset terminal in response to the end of communication with PSAP, so as to establish a communication connection with the preset terminal and play communication audio data to the preset terminal.

[0144] In one embodiment, the first communication module 820 is specifically configured to send a minimum data set (MSD) to the PSAP and establish a communication connection with the PSAP based on a first communication request from the PSAP in response to the MSD; wherein the MSD includes at least the vehicle's location information; or, send a communication request carrying the MSD to the PSAP to establish a communication connection with the PSAP.

[0145] In one embodiment, the communication device further includes:

[0146] The first sending module is used to send a first prompt message to the preset terminal in response to receiving a second communication request from a preset terminal during communication with PSAP; wherein the first prompt message is used to indicate that communication with PSAP is currently in progress.

[0147] In one embodiment, the second communication module 830 is further configured to continuously send communication requests to the preset terminal in response to the failure to establish a communication connection with the preset terminal, until the number of times the communication requests are sent reaches a preset number.

[0148] In one embodiment, the communication device further includes:

[0149] The suspension module is used to suspend communication with the preset terminal and establish a communication connection with the PSAP in response to receiving a third communication request sent by the PSAP during communication with the preset terminal.

[0150] The second sending module is used to send a second prompt message to a preset terminal; wherein the second prompt message is used to indicate that a communication request sent by PSAP has been received.

[0151] In one embodiment, the suspend module is specifically used to suspend communication with a preset terminal in response to a suspend operation for a third communication request; and to suspend communication with the preset terminal in response to the request duration of the third communication request reaching a preset duration threshold.

[0152] In one embodiment, the communication device further includes:

[0153] The receiving module is used to receive communication join requests sent by a preset terminal in response to a communication suspension.

[0154] The third communication module is used to establish a three-way communication connection between the vehicle terminal, the preset terminal, and the PSAP in response to the permission operation for the communication joining request.

[0155] In one embodiment, the first communication module 820 is further configured to send a three-way communication request to the preset terminal and the PSAP in response to the target communication device including the preset terminal and the PSAP; and to establish a communication connection with the sender of the response message in response to receiving a response message from the preset terminal and / or the PSAP in response to the three-way communication request.

[0156] In one embodiment, the first communication module 820 is specifically configured to send a first message to the preset terminal in response to not receiving a response message from the preset terminal; wherein the first message is used to indicate a request to establish a communication connection; in response to not receiving a response message from the PSAP, send a second message to the PSAP; wherein the second message includes at least the vehicle's location information; and in response to not receiving response messages from both the preset terminal and the PSAP, continuously send a three-way communication request to the preset terminal and the PSAP until a response message is received from the preset terminal and / or the PSAP.

[0157] Regarding the modules / units included in the various devices and products described in the above embodiments, they can be software modules / units, hardware modules / units, or a combination of both. For example, for various devices and products applied to or integrated into a chip, all of their modules / units can be implemented using hardware methods such as circuits, or at least some modules / units can be implemented using software programs that run on a processor integrated within the chip, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits; for various devices and products applied to or integrated into a chip module, all of their modules / units can be implemented using hardware methods such as circuits, and different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules / units can be implemented using hardware methods such as circuits. The components can be implemented using software programs that run on the processor integrated within the chip module. The remaining (if any) modules / units can be implemented using hardware methods such as circuits. For various devices and products applied to or integrated into the terminal, each of its components / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or in different components within the terminal. Alternatively, at least some modules / units can be implemented using software programs that run on the processor integrated within the terminal, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits.

[0158] In one exemplary embodiment, a computer device is provided, which may be an in-vehicle terminal, and its internal structure diagram may be as follows. Figure 9As shown, the computer device includes a processor, memory, input / output interfaces, a communication interface, a display unit, and an input device. The processor, memory, and input / output interfaces are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interfaces. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The input / output interfaces are used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, Near Field Communication (NFC), or other technologies. When the computer program is executed by the processor, it implements a communication method. The display unit is used to form a visually visible image and can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the computer device, or external keyboards, touchpads, or mice, etc.

[0159] Those skilled in the art will understand that Figure 9 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0160] In one exemplary embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the various method embodiments of the above-described communication method.

[0161] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the steps of the various method embodiments of the above-described communication method.

[0162] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps of the various method embodiments of the above-described communication method.

[0163] Based on the same inventive concept, this application also provides a chip, including a processor coupled to a memory, for executing a computer program or instructions stored in the memory, and implementing the steps in the above method embodiments when the processor executes the computer program or instructions.

[0164] It is understood that the chip involved in the embodiments of this application may be a field-programmable gate array (FPGA), may be an application-specific integrated circuit (ASIC), may be a system on chip (SoC), may be a central processor unit (CPU), may be a network processor (NP), may be a digital signal processor (DSP), may be a microcontroller unit (MCU), may be a programmable logic device (PLD), or other integrated chips, etc.

[0165] Based on the same inventive concept, this application also provides a chip module, such as... Figure 10 As shown, the chip module includes a communication module, a power module, a storage module, and a chip. Among them:

[0166] The power module is used to provide power to the chip module; the storage module is used to store data and instructions; the communication module is used for internal communication within the chip module, or for communication between the chip module and external devices; this chip corresponds to the chip in the above chip embodiment.

[0167] The implementation method of this chip module can be found in the relevant content of the above chip embodiment, and will not be repeated here.

[0168] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0169] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0170] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A communication method, characterized in that, Applied to vehicle-mounted terminals, the method includes: In response to a vehicle accident, a target communication device is selected from the preset terminals and PSAPs based on the communication priority of the preset terminals and PSAPs; wherein, the preset terminal is the communication terminal of the accident contact person associated with the vehicle. In response to the fact that the target communication device only includes the PSAP, communication data is sent to the PSAP to establish a communication connection with the PSAP, and the communication process with the PSAP is recorded to obtain communication audio data; In response to the termination of communication with the PSAP, a target communication request is sent to the preset terminal to establish a communication connection with the preset terminal, and the communication audio data is played to the preset terminal.

2. The method according to claim 1, characterized in that, Sending communication data to the PSAP to establish a communication connection with the PSAP includes: Send a minimum data set (MSD) to the PSAP, and establish a communication connection with the PSAP based on the first communication request responded to by the PSAP in response to the MSD; wherein the MSD includes at least the vehicle's location information; or, Send a communication request carrying the MSD to the PSAP to establish a communication connection with the PSAP.

3. The method according to claim 1, characterized in that, The method further includes: In response to receiving a second communication request from the preset terminal during communication with the PSAP, a first prompt message is sent to the preset terminal; The first prompt message is used to indicate that communication with the PSAP is currently in progress.

4. The method according to claim 1, characterized in that, The method further includes: In response to the failure to establish a communication connection with the preset terminal, a communication request is continuously sent to the preset terminal until the number of times the communication request is sent reaches a preset number.

5. The method according to claim 1, characterized in that, The method further includes: In response to receiving a third communication request sent by the PSAP during communication with the preset terminal, the communication with the preset terminal is suspended, and a communication connection with the PSAP is established. Send a second prompt message to the preset terminal; wherein the second prompt message is used to indicate that a communication request sent by the PSAP has been received.

6. The method according to claim 5, characterized in that, The communication between the suspended terminal and the preset terminal includes any one of the following: In response to the suspend operation for the third communication request, communication with the preset terminal is suspended; In response to the third communication request reaching a preset duration threshold, communication with the preset terminal is suspended.

7. The method according to claim 5, characterized in that, The method further includes: Receive the communication join request sent by the preset terminal in response to the communication suspension; In response to the permission operation for the communication joining request, a three-way communication connection is established between the vehicle terminal, the preset terminal, and the PSAP.

8. The method according to any one of claims 1-7, characterized in that, The method further includes: In response to the target communication device including the preset terminal and the PSAP, a three-way communication request is sent to the preset terminal and the PSAP; In response to receiving a response message from the preset terminal and / or the PSAP in response to the three-party communication request, a communication connection is established with the sender of the response message.

9. The method according to claim 8, characterized in that, The method further includes any of the following: In response to not receiving a response message from the preset terminal, a first message is sent to the preset terminal; wherein, the first message is used to indicate a request to establish a communication connection; In response to not receiving a response message from the PSAP, a second message is sent to the PSAP; wherein the second message includes at least the vehicle's location information; In response to the lack of a response message from the preset terminal and the PSAP, the system continuously sends the three-way communication request to the preset terminal and the PSAP until a response message is received from the preset terminal and / or the PSAP.

10. A communication device, characterized in that, The device includes: A selection module is used to select a target communication device from the preset terminals and PSAPs according to the communication priority of the preset terminals and public safety response points (PSAPs) in response to a vehicle accident; wherein the preset terminals are the communication terminals of the accident contact persons associated with the vehicle. The first communication module is configured to, in response to the target communication device comprising only the PSAP, send communication data to the PSAP to establish a communication connection with the PSAP, and record the communication process with the PSAP to obtain communication audio data; The second communication module is used to send a target communication request to the preset terminal in response to the end of communication with the PSAP, so as to establish a communication connection with the preset terminal and play the communication audio data to the preset terminal.

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