Emergency call link detection method, device, equipment, medium, product and vehicle

Abstract

The invention discloses an emergency call link detection method, device and equipment, a medium, a product and a vehicle, and relates to the technical field of automobiles. The emergency call link detection method comprises the following steps: receiving a vehicle offline detection request sent by a vehicle electric detection system; the vehicle offline detection request is responded, target audio is played through a target loudspeaker, and the target loudspeaker is a loudspeaker used for emergency call in the target vehicle; a first audio signal is acquired, and the first audio signal is an audio signal acquired by an audio acquisition device of the target vehicle; calculating a feature value of a signal feature of the first audio signal; and comparing the feature value of the signal feature of the first audio signal with a preset feature value range to obtain a detection result of the emergency call link of the target vehicle. Through the scheme disclosed by the invention, the detection efficiency of the vehicle emergency call link can be improved.

Description

Technical Field

[0001] The present application belongs to the field of automobile technology, and in particular, relates to an emergency call link detection method, device, equipment, medium, product and vehicle. Background Art

[0002] Vehicle offline inspection refers to the process of testing the functions of components and controlling the quality of the entire vehicle during the manufacturing process. Vehicle offline inspection usually tests the dashboard electrical appliances, door electrical appliances, vehicle electrical functions, toe-in and four-wheel alignment, wheel hubs, exhaust emissions, and emergency call links.

[0003] In the related art, when detecting an emergency call link, the emergency call link is usually detected by manually dialing an emergency call and manually confirming whether the emergency call is successful.

[0004] However, the detection efficiency of emergency call links is low by manual detection. Summary of the invention

[0005] The embodiments of the present application provide an emergency call link detection method, device, equipment, medium, product and vehicle, which can solve the problem of low efficiency in detecting vehicle emergency call links.

[0006] In a first aspect, an embodiment of the present application provides an emergency call link detection method, including:

[0007] Receive a vehicle offline inspection request sent by a vehicle electrical inspection system;

[0008] In response to a vehicle offline detection request, playing a target audio through a target speaker, wherein the target speaker is a speaker in the target vehicle used for emergency calls;

[0009] Acquire a first audio signal, wherein the first audio signal is an audio signal collected by an audio collection device of the target vehicle;

[0010] Calculating a characteristic value of a signal characteristic of the first audio signal;

[0011] The characteristic value of the signal characteristic of the first audio signal is compared with a preset characteristic value range to obtain a detection result of the emergency call link for the target vehicle.

[0012] In a second aspect, an embodiment of the present application provides an emergency call link detection device, including:

[0013] A first receiving module, used for receiving a vehicle offline inspection request sent by a vehicle electrical inspection system;

[0014] A playing module, used for responding to a vehicle offline detection request and playing a target audio through a target speaker, wherein the target speaker is a speaker in a target vehicle for emergency calls;

[0015] An acquisition module, used to acquire a first audio signal, wherein the first audio signal is an audio signal collected by an audio collection device of a target vehicle;

[0016] A calculation module, used to calculate a characteristic value of a signal characteristic of the first audio signal;

[0017] The comparison module is used to compare the characteristic value of the signal characteristic of the first audio signal with a preset characteristic value range to obtain a detection result of the emergency call link for the target vehicle.

[0018] In a third aspect, an embodiment of the present application provides an emergency call link detection system, comprising: a vehicle main unit, a radio frequency module, a target speaker, and an audio acquisition device, wherein the target speaker is a speaker used for emergency calls in a target vehicle;

[0019] The vehicle main unit is used to receive a vehicle offline detection request sent by the vehicle electrical inspection system, respond to the vehicle offline detection request, and send a target audio to the radio frequency module;

[0020] A radio frequency module for sending target audio to a target speaker;

[0021] A target speaker, used to play the target audio;

[0022] An audio acquisition device, used for acquiring an audio signal when a target speaker plays a target audio, obtaining a first audio signal, and sending the first audio signal to a radio frequency module;

[0023] The radio frequency module is also used to calculate the characteristic value of the signal characteristic of the first audio signal, compare the characteristic value of the signal characteristic of the first audio signal with a preset characteristic value range, and obtain a detection result of the emergency call link for the target vehicle.

[0024] In a fourth aspect, an embodiment of the present application provides an electronic device, comprising: a processor and a memory storing computer program instructions; when the processor reads and executes the computer program instructions, the emergency call link detection method provided in the first aspect of the embodiment of the present application is implemented.

[0025] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the emergency call link detection method provided in the first aspect of the embodiment of the present application is implemented.

[0026] In a sixth aspect, an embodiment of the present application provides a computer program product. When the instructions in the computer program product are executed by a processor of an electronic device, the electronic device executes the emergency call link detection method provided in the first aspect of the embodiment of the present application.

[0027] In a seventh aspect, an embodiment of the present application provides a vehicle, comprising at least one of the following items:

[0028] The emergency call link detection device provided by the second aspect of the embodiment of the present application;

[0029] The emergency call link detection system provided by the third aspect of the embodiment of the present application;

[0030] The electronic device provided by the fourth aspect of the embodiment of the present application;

[0031] A fifth aspect of an embodiment of the present application provides a computer-readable storage medium.

[0032] In the embodiment of the present application, a vehicle offline detection request sent by a vehicle electrical inspection system is received; in response to the vehicle offline detection request, the target audio is played through the speaker used for emergency calls in the target vehicle; the audio signal is collected through the audio collection device of the target vehicle to obtain a first audio signal; the characteristic value of the signal characteristic of the first audio signal is calculated; the characteristic value of the signal characteristic of the first audio signal is compared with a preset characteristic value range to obtain the detection result of the emergency call link for the target vehicle. In this way, the detection of the vehicle emergency call link can be completed automatically, and the detection of the vehicle emergency call link can be completed without manual work, which can improve the detection efficiency of the vehicle emergency call link. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0034] Figure 1 It is a flowchart of an emergency call link detection method provided in an embodiment of the present application;

[0035] Figure 2 It is a schematic diagram of the framework of the EOL APP provided in the embodiment of the present application;

[0036] Figure 3 is a process flow chart of detecting an emergency call link provided by an embodiment of the present application;

[0037] Figure 4 is a schematic diagram of a process for detecting an emergency call link provided in an embodiment of the present application;

[0038] Figure 5 is a structural diagram of an emergency call link detection device provided in an embodiment of the present application;

[0039] Figure 6 is a structural diagram of an emergency call link detection system provided in an embodiment of the present application;

[0040] Figure 7 It is a schematic diagram of the specific structure of the emergency call link detection system provided in an embodiment of the present application;

[0041] Figure 8 It is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0042] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present application, rather than all of the embodiments.

[0044] The following, in conjunction with the accompanying drawings, describes in detail the emergency call link detection method, device, equipment, medium, product and vehicle provided in the embodiments of the present application through specific embodiments and their application scenarios.

[0045] It should be noted that the execution subject of the emergency call link detection method provided in the embodiment of the present application may be an emergency call link detection device, which is arranged in the target vehicle. The emergency call link detection device may be an electronic device or a component in an electronic device, such as an integrated circuit or a chip.

[0046] Figure 1 FIG. 1 is a flow chart of the emergency call link detection method provided in the embodiment of the present application. Figure 1 As shown, the emergency call link detection method may include:

[0047] Step 101: receiving a vehicle offline inspection request sent by a vehicle electrical inspection system;

[0048] Step 102: In response to the vehicle offline detection request, play the target audio through the target speaker, wherein the target speaker is a speaker in the target vehicle for emergency calls;

[0049] Step 103: Acquire a first audio signal, wherein the first audio signal is an audio signal collected by an audio collection device of the target vehicle;

[0050] Step 104: Calculate a characteristic value of a signal characteristic of the first audio signal;

[0051] Step 105: Compare the characteristic value of the signal characteristic of the first audio signal with a preset characteristic value range to obtain a detection result of the emergency call link for the target vehicle.

[0052] The specific implementation of each of the above steps will be described in detail below.

[0053] In the embodiment of the present application, a vehicle offline detection request sent by a vehicle electrical inspection system is received; in response to the vehicle offline detection request, the target audio is played through the speaker used for emergency calls in the target vehicle; the audio signal is collected through the audio collection device of the target vehicle to obtain a first audio signal; the characteristic value of the signal characteristic of the first audio signal is calculated; the characteristic value of the signal characteristic of the first audio signal is compared with a preset characteristic value range to obtain the detection result of the emergency call link for the target vehicle. In this way, the detection of the vehicle emergency call link can be completed automatically, and the detection of the vehicle emergency call link can be completed without manual work, which can improve the detection efficiency of the vehicle emergency call link.

[0054] In some possible implementations of the embodiments of the present application, the target audio in the embodiments of the present application may be an audio of a fixed frequency, such as an audio of 1 kilohertz (KHz). The speaker used for emergency calls in the vehicle is an Ecall speaker.

[0055] In some possible implementations of the embodiments of the present application, the audio acquisition device in the embodiments of the present application may be a microphone installed in the main driving seat.

[0056] In some possible implementations of the embodiments of the present application, the signal characteristics in the embodiments of the present application may include frequency and / or energy (ie, sound intensity).

[0057] The embodiment of the present application does not limit the method used to calculate the frequency and / or energy of the first audio signal, and any available method can be applied to the embodiment of the present application.

[0058] In some possible implementations of the embodiments of the present application, in step 105, the frequency difference between the frequency of the first audio signal and the signal frequency of the target audio may be compared with a preset frequency range. If the frequency difference is within the preset frequency range, it is determined that the emergency call link is normal; otherwise, it is determined that the emergency call link is abnormal. The sound intensity difference between the sound intensity of the first audio signal and the sound intensity of the target speaker when playing the target audio may be compared with a preset sound intensity range. If the sound intensity difference is within the preset sound intensity range, it is determined that the emergency call link is normal; otherwise, it is determined that the emergency call link is abnormal. The frequency difference between the frequency of the first audio signal and the signal frequency of the target audio may be compared with a preset frequency range, and the sound intensity difference between the sound intensity of the first audio signal and the sound intensity of the target speaker when playing the target audio may be compared with a preset sound intensity range. If the frequency difference is within the preset frequency range and the sound intensity difference is within the preset sound intensity range, it is determined that the emergency call link is normal; otherwise, it is determined that the emergency call link is abnormal.

[0059] In some possible implementations of the embodiments of the present application, before step 104, the emergency call link detection method provided by the embodiments of the present application may also include: performing a fast Fourier transform (FFT) on the first audio signal to obtain a second audio signal; accordingly, step 103 may include: calculating the characteristic value of the signal characteristic of the second audio signal.

[0060] Fast Fourier transform can transform the signal from time domain to frequency domain.

[0061] In some possible implementations of the embodiments of the present application, the vehicle offline detection request may be sent by controlling the vehicle electrical inspection system after the vehicle automatic identification system detects the radio frequency identification (RFID) signal of the target vehicle.

[0062] In some possible implementations of the embodiments of the present application, an automatic vehicle identification (AVI) system and a vehicle electrical inspection system may be configured at a test station in a vehicle production line. When a vehicle arrives at the test station, the AVI system detects the vehicle's RFID signal and controls the vehicle electrical inspection system to send a vehicle offline inspection request to the vehicle. After receiving the vehicle offline inspection request, the vehicle performs a vehicle offline inspection, wherein the vehicle offline inspection includes an emergency call link detection.

[0063] In some possible implementations of the embodiments of the present application, when the AVI system controls the vehicle electrical inspection system to send a vehicle offline inspection request to the vehicle, the AVI system can send a specific instruction to the vehicle electrical inspection system, and the specific instruction is used to instruct the vehicle electrical inspection system to send a vehicle offline inspection request to the vehicle.

[0064] In some possible implementations of the embodiments of the present application, before step 101, the emergency call link detection method provided by the embodiments of the present application may also include: receiving an offline detection application startup request sent by the vehicle electrical inspection system; responding to an offline detection (End of line, EOL) application (Application, APP) startup request, starting the EOL APP, and sending a response message to the vehicle electrical inspection system, wherein the response message is used to trigger the vehicle electrical inspection system to send a vehicle offline detection request.

[0065] In an embodiment of the present application, the vehicle electrical inspection system may first send an EOL APP start request to the vehicle. After the vehicle feeds back response information to the vehicle electrical inspection system, the vehicle electrical inspection system then sends a vehicle offline inspection request to the vehicle.

[0066] In some possible implementations of the embodiments of the present application, the emergency call link detection method provided in the embodiments of the present application may also include: sending the detection results to the vehicle electrical inspection system so that the vehicle electrical inspection system controls the target vehicle to be inspected offline according to the detection results.

[0067] In some possible implementations of the embodiments of the present application, when the test result indicates that the emergency call link of the target vehicle has passed the test, the vehicle electrical inspection system can end the offline inspection of the target vehicle; when the test result indicates that the emergency call link of the target vehicle has not passed the test, the vehicle electrical inspection system again sends a vehicle offline inspection request to the target vehicle, and the target vehicle re-tests the emergency call link. When the target vehicle repeatedly feeds back to the vehicle electrical inspection system the test result indicating that the emergency call link of the target vehicle has not passed the test, the vehicle electrical inspection system can push a prompt message to the user (for example, a vehicle maintenance personnel) to prompt the vehicle maintenance personnel to inspect the emergency call link of the target vehicle, or the vehicle electrical inspection system issues an alarm to remind the vehicle maintenance personnel to inspect the emergency call link of the target vehicle.

[0068] In some possible implementations of the embodiments of the present application, the EOL APP startup request sent by the vehicle electrical inspection system can be received through the diagnostic service (DiagService) of the EOL APP. After receiving the EOL APP startup request, the EOL APP is called up through the main activity (MainActivity), and a response message indicating that the EOL APP has been started is sent to the vehicle electrical inspection system. After receiving the response message, the vehicle electrical inspection system sends a vehicle offline detection request to the vehicle. After receiving the vehicle offline detection request, the vehicle performs a vehicle offline detection, wherein the vehicle offline detection includes an emergency call link detection. When performing emergency call link detection, the EOL APP calls up the vehicle offline detection service (CareolTestService) and sends an audio test case (i.e., target audio) to the RF module (e.g., 5G RF) through the TestRunner component and the direct digital frequency synthesizer (Direct Digital Frequency Synthesis, DDS). After receiving the target audio, the RF module controls the Ecall speaker in the vehicle to play the target audio through the microcontroller unit (MCU), and uses the microphone installed in the main driver's seat to collect the audio signal, which is fed back to the MCU through the car audio bus (A2B). The MCU sends the collected audio signal to the RF module, and the RF module performs FFT transformation on the audio signal, calculates the frequency and / or energy of the transformed signal, and compares the frequency and / or energy with the preset range. If it is within the preset range, the emergency call link is normal, otherwise the emergency call link is abnormal. Feedback the detection results of the emergency call link to the EOL APP, and the EOL APP sends the detection results to the vehicle electrical inspection system.

[0069] In some possible implementations of the embodiments of the present application, the EOL APP may include: upper layer components, test interface layer, dependent components and functional components, wherein the upper layer components may include: careol component, careol-ssmax component, careol-pro component and ext-sdk component; the test interface layer may include the careol-core interface; the dependent components may include: DDS component, dep-opencv component and dep-vehicle component; the functional components may include: sup-testrunner component, sup-data component, sup-display component and sup-loader component. Figure 2 As shown, Figure 2 It is a schematic diagram of the framework of the EOL APP provided in the embodiment of the present application.

[0070] Figure 3: is a process flow chart of detecting an emergency call link provided by an embodiment of the present application. The process flow of detecting an emergency call link includes the following steps:

[0071] The diagnostic service (Diag Service) sends an offline test startup instruction (startup) to the offline test software development kit (careolSDK), and careolSDK starts the offline detection main interactive interface. When the offline detection main interface is successfully started, the main activity (MainActivity) feedbacks the startup success to the diagnostic service; Diag Service sends a detection item instruction to careolSDK, and careolSDK calls the corresponding content provider in the offline content provider (careolcontentProvider) based on the uniform resource identifier (URI) corresponding to the detection item instruction. The corresponding content provider calls the service (service), and the offline test service (careolTestService) is called. CareolTestService calls the runner (runner), and the test runner is called, and the test runner (ImplTestRunner) executes the detection sequence. Diag Service sends a real-time query execution result instruction to careolSDK, and careolSDK calls the corresponding content provider. The corresponding content provider receives the execution result fed back by ImplTestRunner and returns the execution result to Diag Service. Diag Service determines whether the offline test is completed. If the offline test is completed, it sends an offline test shutdown command (shutdown) to careolSDK, and careolSDK closes the offline detection main interactive interface. When the offline detection main interactive interface is closed successfully, MainActivity feedbacks the shutdown success to the diagnostic service.

[0072] Figure 4 : is a schematic diagram of the process of detecting an emergency call link provided by an embodiment of the present application. The process of detecting an emergency call link includes the following steps:

[0073] Step 401: configuring an AVI system and a vehicle electrical inspection system at a test station in a vehicle production line;

[0074] Step 402: When the AVI system detects the RFID signal of the vehicle, the vehicle electrical inspection system is controlled to send an EOLAPP start request to the vehicle;

[0075] Step 403: The vehicle starts the EOL APP and sends a response message to the vehicle electrical inspection system;

[0076] Step 404: the vehicle electrical inspection system sends a vehicle offline inspection request to the vehicle;

[0077] Step 405: The EOL APP sends the target audio to the RF module;

[0078] Step 406: Control the Ecall speaker in the vehicle through the MCU to play the target audio;

[0079] Step 407: Collecting audio signals using a microphone;

[0080] Step 408: Send the collected audio signal to the radio frequency module;

[0081] Step 409: The RF module performs FFT transformation on the received audio signal;

[0082] Step 410: Calculate the frequency and energy of the transformed audio signal;

[0083] Step 411: Compare the calculated frequency and energy with a preset range to obtain a detection result for the vehicle emergency call link;

[0084] Step 412: Send the test results to the vehicle electrical inspection system.

[0085] Corresponding to the above method embodiment, the present application embodiment also provides an emergency call link detection device. Figure 5 As shown, Figure 5 300 is a schematic diagram of the structure of an emergency call link detection device provided in an embodiment of the present application. The emergency call link detection device 300 may include:

[0086] The first receiving module 501 is used to receive a vehicle offline inspection request sent by a vehicle electrical inspection system;

[0087] A playing module 502, configured to respond to the vehicle offline detection request and play a target audio through a target speaker, wherein the target speaker is a speaker in the target vehicle for emergency calls;

[0088] An acquisition module 503 is used to acquire a first audio signal, wherein the first audio signal is an audio signal collected by an audio collection device of the target vehicle;

[0089] A calculation module 504, configured to calculate a characteristic value of a signal characteristic of a first audio signal;

[0090] The comparison module 505 is used to compare the characteristic value of the signal characteristic of the first audio signal with a preset characteristic value range to obtain a detection result of the emergency call link for the target vehicle.

[0091] In the embodiment of the present application, a vehicle offline detection request sent by a vehicle electrical inspection system is received; in response to the vehicle offline detection request, the target audio is played through the speaker used for emergency calls in the target vehicle; the audio signal is collected through the audio collection device of the target vehicle to obtain a first audio signal; the characteristic value of the signal characteristic of the first audio signal is calculated; the characteristic value of the signal characteristic of the first audio signal is compared with a preset characteristic value range to obtain the detection result of the emergency call link for the target vehicle. In this way, the detection of the vehicle emergency call link can be completed automatically, and the detection of the vehicle emergency call link can be completed without manual work, which can improve the detection efficiency of the vehicle emergency call link.

[0092] In some possible implementations of the embodiments of the present application, the emergency call link detection device 500 provided in the embodiments of the present application may further include:

[0093] A transformation module, configured to perform a fast Fourier transform on the first audio signal to obtain a second audio signal;

[0094] Accordingly, the calculation module 504 may be specifically used for:

[0095] A feature value of a signal feature of the second audio signal is calculated.

[0096] In some possible implementations of the embodiments of the present application, the vehicle offline detection request is sent by the vehicle automatic identification system after the vehicle automatic identification system detects the radio frequency identification signal of the target vehicle.

[0097] In some possible implementations of the embodiments of the present application, the emergency call link detection device 500 provided in the embodiments of the present application may further include:

[0098] A second receiving module is used to receive an offline detection application startup request sent by the vehicle electrical inspection system;

[0099] The startup module is used to respond to the offline detection application startup request, start the offline detection application, and send response information to the vehicle electrical inspection system, wherein the response information is used to trigger the vehicle electrical inspection system to send a vehicle offline detection request.

[0100] In some possible implementations of the embodiments of the present application, the emergency call link detection device 500 provided in the embodiments of the present application may further include:

[0101] The sending module is used to send the detection results to the vehicle electrical inspection system so that the vehicle electrical inspection system controls the target vehicle to be inspected offline according to the detection results.

[0102] The present application also provides an emergency call link detection system. Figure 6 shown. Figure 6It is a structural diagram of the emergency call link detection system provided in an embodiment of the present application. The emergency call link detection system 600 may include: a vehicle head unit (HU) 601, a radio frequency module 602, a target speaker 603 and an audio acquisition device 604, wherein the vehicle head unit 601 is respectively connected to the radio frequency module 602, the target speaker 603 and the audio acquisition device 604 in communication, and the target speaker is a speaker for emergency calls (Ecall) in the target vehicle; the radio frequency module 602 may be a 5G radio frequency module.

[0103] The vehicle main unit 601 is used to receive a vehicle offline detection request sent by the vehicle electrical inspection system, respond to the vehicle offline detection request, and send a target audio to the radio frequency module 602;

[0104] A radio frequency module 602, used to send the target audio to a target speaker 603 via the vehicle main unit 601;

[0105] A target speaker 603, used to play the target audio;

[0106] The audio acquisition device 604 is used to acquire the audio signal when the target speaker 603 plays the target audio, obtain the first audio signal, and send the first audio signal to the radio frequency module 602 through the vehicle main unit 601;

[0107] The radio frequency module 602 is further used to calculate a characteristic value of a signal characteristic of the first audio signal, and compare the characteristic value of the signal characteristic of the first audio signal with a preset characteristic value range to obtain a detection result of the emergency call link for the target vehicle.

[0108] In some possible implementations of the embodiments of the present application, the vehicle main unit 601 can also be used to: receive the detection results sent by the radio frequency module 602; send the detection results to the vehicle electrical inspection system so that the vehicle electrical inspection system controls the offline inspection of the target vehicle according to the detection results.

[0109] In some possible implementations of the embodiments of the present application, the vehicle main unit 601 may include a system-on-chip (SoC) and a microprocessor (MPU), wherein the system-on-chip is used to receive a vehicle offline detection request sent by a vehicle electrical inspection system, respond to the vehicle offline detection request, and send a target audio to the RF module 602; the microprocessor is used to receive the target audio sent by the RF module 602, send the target audio to the target speaker 603, and receive a first audio signal sent by an audio acquisition device 604, and send the first audio signal to the RF module 602.

[0110] In some possible implementations of the embodiment of the present application, the vehicle main unit 601 may further include an amplifier (AMP), which is used to amplify the first audio signal sent by the audio acquisition device. Figure 7 As shown, Figure 7 It is a schematic diagram of the specific structure of the emergency call link detection system provided in an embodiment of the present application.

[0111] exist Figure 7 In the figure, A2B is the automotive audio bus, TDM is time division multiplexing, and I2S is the integrated circuit built-in audio bus.

[0112] After SoC receives the EOL APP startup request sent by the vehicle electrical inspection system to the vehicle, it starts the EOL APP and sends a response message to the vehicle electrical inspection system. The vehicle electrical inspection system sends a vehicle offline inspection request to the vehicle. The EOL APP in the SoC sends the target audio to the RF module 602. After receiving the target audio, the RF module 602 sends the target audio to the target speaker 603 for playback through the MPU and AMP. The audio acquisition device 604 acquires the audio signal when the target speaker 603 plays the target audio, and sends the acquired audio signal to the RF module 602 through A2B and MCU. The RF module 602 performs FFT transformation on the received audio signal, calculates the frequency and energy of the transformed audio signal, compares the calculated frequency and energy with the preset range, and obtains the detection result of the vehicle emergency call link. The RF module 602 sends the detection result to the SoC. The SoC responds to the detection result request of the vehicle electrical inspection system and sends the detection result to the vehicle electrical inspection system. The vehicle electrical inspection system controls the vehicle offline inspection according to the test results. When the test results indicate that the vehicle's emergency call link has passed the test, the vehicle electrical inspection system can end the vehicle offline inspection. When the test results indicate that the vehicle's emergency call link has not passed the test, the vehicle electrical inspection system again sends a vehicle offline inspection request to the vehicle, and the vehicle re-tests the emergency call link. When the vehicle repeatedly feeds back to the vehicle electrical inspection system the test results indicating that the vehicle's emergency call link has not passed the test, the vehicle electrical inspection system can push prompt information to the user (such as vehicle maintenance personnel) to prompt the vehicle maintenance personnel to inspect the vehicle's emergency call link, or the vehicle electrical inspection system issues an alarm to remind the vehicle maintenance personnel to inspect the vehicle's emergency call link.

[0113] Figure 8 It is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0114] The electronic device may include a processor 801 and a memory 802 storing computer program instructions.

[0115] Specifically, the processor 801 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0116] The memory 802 may include a large capacity memory for data or instructions. By way of example and not limitation, the memory 802 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. In appropriate cases, the memory 802 may include a removable or non-removable (or fixed) medium. In appropriate cases, the memory 802 may be inside or outside the electronic device. In some specific embodiments, the memory 802 is a non-volatile solid-state memory.

[0117] In some specific embodiments, the memory may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk storage medium device, an optical storage medium device, a flash memory device, an electrical, optical or other physical / tangible memory storage device. Therefore, typically, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., a memory device) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the emergency call link detection method according to the present application.

[0118] The processor 801 implements the emergency call link detection method provided in the embodiment of the present application by reading and executing the computer program instructions stored in the memory 802 .

[0119] In some examples, the electronic device may further include a communication interface 803 and a bus 810. Figure 8 As shown, the processor 801, the memory 802, and the communication interface 803 are connected via a bus 810 and communicate with each other.

[0120] The communication interface 803 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiments of the present application.

[0121] The bus 810 includes hardware, software or both, coupling the components of the electronic device to each other. For example, but not limitation, the bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Extended Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hyper Transport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an InfiniBand interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro channel architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local Bus (VLB) bus or other suitable buses or a combination of two or more of these. Where appropriate, the bus 810 may include one or more buses. Although embodiments of the present application describe and illustrate a particular bus, the present application contemplates any suitable bus or interconnect.

[0122] The electronic device can execute the emergency call link detection method provided in the embodiment of the present application, thereby achieving the corresponding technical effects of the emergency call link detection method provided in the embodiment of the present application.

[0123] In addition, in combination with the emergency call link detection method in the above embodiment, the embodiment of the present application also provides a computer-readable storage medium for implementation. The computer-readable storage medium stores computer program instructions; when the computer program instructions are executed by the processor, the emergency call link detection method provided in the embodiment of the present application is implemented. Examples of computer-readable storage media include non-transitory computer-readable media, such as ROM, RAM, magnetic disk or optical disk, etc.

[0124] An embodiment of the present application also provides a computer program product. When the instructions in the computer program product are executed by a processor of an electronic device, the electronic device executes the emergency call link detection method provided in the embodiment of the present application and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0125] The present application also provides a vehicle, comprising at least one of the following items:

[0126] The emergency call link detection device provided in the embodiment of the present application;

[0127] The emergency call link detection system provided by the embodiment of the present application;

[0128] The electronic device provided by the embodiment of the present application;

[0129] The computer-readable storage medium provided by the embodiments of the present application.

[0130] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A method for detecting an emergency call link, characterized in that: The method comprises: Receive a vehicle offline inspection request sent by a vehicle electrical inspection system; In response to the vehicle offline detection request, playing target audio through a target speaker, wherein the target speaker is a speaker in the target vehicle for emergency calls; Acquire a first audio signal, wherein the first audio signal is an audio signal collected by an audio collection device of the target vehicle; Calculating a characteristic value of a signal characteristic of the first audio signal; The characteristic value is compared with a preset characteristic value range to obtain a detection result of the emergency call link of the target vehicle.

2. The method according to claim 1, characterized in that Before calculating the characteristic value of the signal characteristic of the first audio signal, the method further includes: Performing a fast Fourier transform on the first audio signal to obtain a second audio signal; The calculating a characteristic value of a signal characteristic of the first audio signal comprises: A feature value of a signal feature of the second audio signal is calculated.

3. The method according to claim 1, characterized in that The vehicle offline detection request is sent by controlling the vehicle electrical inspection system after the vehicle automatic identification system detects the radio frequency identification signal of the target vehicle.

4. The method according to claim 1, characterized in that Before receiving the vehicle offline inspection request sent by the vehicle electrical inspection system, the method further includes: Receiving an offline detection application startup request sent by the vehicle electrical inspection system; In response to the offline detection application startup request, the offline detection application is started, and response information is sent to the vehicle electrical inspection system, wherein the response information is used to trigger the vehicle electrical inspection system to send the vehicle offline detection request.

5. The method according to claim 1, characterized in that The method further comprises: The detection result is sent to the vehicle electrical inspection system so that the vehicle electrical inspection system controls the off-line inspection of the target vehicle according to the detection result.

6. An emergency call link detection device, characterized in that: The device comprises: A first receiving module, used for receiving a vehicle offline inspection request sent by a vehicle electrical inspection system; A playing module, used for responding to the vehicle offline detection request and playing the target audio through a target speaker, wherein the target speaker is a speaker used for emergency calls in the target vehicle; An acquisition module, configured to acquire a first audio signal, wherein the first audio signal is an audio signal collected by an audio collection device of the target vehicle; A calculation module, used for calculating a characteristic value of a signal characteristic of the first audio signal; The comparison module is used to compare the characteristic value with a preset characteristic value range to obtain a detection result of the emergency call link of the target vehicle.

7. An emergency call link detection system, characterized in that: The system comprises: a vehicle main unit, a radio frequency module, a target speaker and an audio collection device, wherein the vehicle main unit is respectively connected to the radio frequency module, the target speaker and the audio collection device for communication, and the target speaker is a speaker in the target vehicle for emergency calls; The vehicle main unit is used to receive a vehicle offline detection request sent by the vehicle electrical inspection system, respond to the vehicle offline detection request, and send a target audio to the radio frequency module; The radio frequency module is used to send the target audio to the target speaker through the vehicle main unit; The target speaker is used to play the target audio; The audio acquisition device is used to collect the audio signal when the target speaker plays the target audio, obtain a first audio signal, and send the first audio signal to the radio frequency module through the vehicle main unit; The radio frequency module is further used to calculate a characteristic value of a signal characteristic of the first audio signal, and compare the characteristic value with a preset characteristic value range to obtain a detection result of the emergency call link for the target vehicle.

8. The system according to claim 7, characterized in that The vehicle main unit includes: a system-level chip and a microprocessor; The system-level chip is used to receive a vehicle offline detection request sent by a vehicle electrical inspection system, respond to the vehicle offline detection request, and send the target audio to the radio frequency module; The microprocessor is used to receive the target audio sent by the radio frequency module, send the target audio to the target speaker, and receive the first audio signal sent by the audio acquisition device, and send the first audio signal to the radio frequency module.

9. The system according to claim 8, characterized in that The vehicle head unit is also used for: Receiving the detection result sent by the radio frequency module; The detection result is sent to the vehicle electrical inspection system so that the vehicle electrical inspection system controls the off-line inspection of the target vehicle according to the detection result.

10. An electronic device, characterized in that: The electronic device comprises: a processor and a memory storing computer program instructions; The processor reads and executes the computer program instructions to implement the emergency call link detection method according to any one of claims 1-5.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer program instructions, and when the computer program instructions are executed by a processor, the emergency call link detection method according to any one of claims 1 to 5 is implemented.

12. A computer program product, characterized in that When the instructions in the computer program product are executed by a processor of an electronic device, the electronic device executes the emergency call link detection method as described in any one of claims 1-5.

13. A vehicle, characterized in that: The vehicle includes at least one of the following: The emergency call link detection device as claimed in claim 6; The emergency call link detection system according to any one of claims 7 to 9; The electronic device according to claim 10; The computer readable storage medium of claim 11.

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