Audio warning system and method

Abstract

The present invention provides an audio warning system and method, comprising the following steps: an on-board detection device detects driving safety data and generates a corresponding wireless warning signal; an audio device electrically connected to a vehicle's central control host detects its own identity status information, monitors the wireless warning signal when the identity status indicates that the device is a host, converts the warning signal into a corresponding audio signal in response to the wireless warning signal, and receives the audio signal sent by the host when the identity status indicates that the device is a slave; and the audio device drives a loudspeaker to sound an alarm based on the audio signal. This method enables the audio device to directly obtain the wireless warning signal sent by the on-board detection device, generate an audio signal, and drive the loudspeaker to sound an alarm. This eliminates the need for the audio device to obtain the warning signal from the vehicle's central control host before sounding the alarm, thus resolving the problem of the display screen failing to sound an alarm when the vehicle's central control host is damaged or frozen.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile assisted driving, and in particular relates to an audible warning method and an audible warning system. Background Art

[0002] Currently, cars have multiple driving detection systems, such as parking assistance systems, forward collision warning systems, blind spot detection systems, and tire pressure detection systems. These systems send the detection data acquired to a central control host, which processes the detection data. The central control host converts the processed detection data into control signals and outputs the control signals to its central control display screen, which displays driving information to assist the driver in driving the car.

[0003] Moreover, in order to further remind the driver of the driving information detected during driving, the central control host is usually connected to the car audio system. The central control host outputs audio signals to the car audio system, driving the car audio system to issue warning information to assist the driver in driving the car.

[0004] However, since the central control host serves as the control terminal of each driving detection system, if the central control host fails, the central control host will not be able to process the various detection data sent by the various driving detection systems, or the central control host will not be able to send the detection information to the central control display screen for display, thereby making it impossible for the driver to know the driving data during driving, causing serious safety problems for the driver during driving, greatly affecting the life safety of the passengers in the car.

[0005] Furthermore, since a car may be equipped with a new driving detection system later, which may not be compatible with the car's original central control unit, each newly configured driving detection system needs to have its own host unit, and each driving detection system's host unit displays driving data on its own display screen. However, this will require multiple hosts corresponding to each driving detection system on the car's center console, making the center console layout cluttered and making it difficult for the driver to access detection data from each driving detection system. Summary of the Invention

[0006] The object of the present invention is to solve the above problems and provide an audible alarm system and method.

[0007] To adapt to the various purposes of the present invention, the following technical solutions are adopted:

[0008] One of the purposes of the present invention is to provide an audible alarm method, comprising the following steps:

[0009] The vehicle-mounted detection equipment detects driving safety data and generates corresponding wireless alarm signals;

[0010] An audio device electrically connected to the vehicle central control host detects its own identity status information, monitors a wireless alarm signal when the identity status indicates that the audio device is a master, converts the alarm signal into a corresponding audio signal in response to the wireless alarm signal, and receives the audio signal sent by the master when the identity status indicates that the audio device is a slave;

[0011] The audio device drives the loudspeaker to sound an alarm according to the audio signal.

[0012] Furthermore, the audio device electrically connected to the automobile central control host detects its own identity status information, and when the identity status indicates that the audio device is the host, the step of monitoring the wireless alarm signal includes the following specific steps:

[0013] When the audio device is activated, it broadcasts a coded signal corresponding to its own identity status into the air;

[0014] The audio device obtains the received external coded signal and determines an audio list, which includes identity information and identity status of the external audio device corresponding to each coded signal;

[0015] The audio device queries the identity status of each external audio device in the audio list to determine whether its identity status is a master. If not, the identity status of the audio device is configured as a slave that receives audio signals from the master, and the monitoring of wireless alarm signals is suspended. If yes, the identity status of the audio device is configured as a master that provides audio signals to the external audio device, and starts monitoring wireless alarm signals.

[0016] Specifically, the vehicle-mounted detection equipment is any one or more of a parking assistance device, a collision warning device, a blind spot detection device, and a tire pressure detection device.

[0017] Specifically, the audio device monitors the wireless alarm signal while synchronously monitoring the audio data of the car central control host. After receiving the audio data, it converts the audio data into a corresponding audio signal to drive the speaker to produce sound.

[0018] Specifically, the wireless alarm signal includes a random number for pairing the vehicle-mounted detection device with the audio device and a verification code used by the audio device to verify the wireless alarm signal.

[0019] Specifically, the audio device obtains the received external coded signal and determines an audio list including the identity information and identity status of the external audio device corresponding to each coded signal, including the following specific steps:

[0020] The identity information is a unique number. Multiple unique numbers are arranged in sequence to form the audio list. The identity status of the audio device corresponding to the first or last unique number in the audio list is host.

[0021] Furthermore, the step of the audio device driving a loudspeaker to sound an alarm according to the audio signal includes the following specific steps:

[0022] The audio device parses the wireless warning signal to obtain corresponding driving safety data, converts the driving safety data into corresponding danger thresholds, and outputs corresponding audio signals based on the danger thresholds;

[0023] The audio device drives the loudspeaker to emit sounds of different pitches and / or different timbres and / or sound intensities and / or sound lengths according to different audio signals.

[0024] An audio warning system is provided to meet one of the purposes of the present invention. The system includes a vehicle-mounted detection device and multiple audio devices. The multiple audio devices are electrically connected to the car's central control host. The audio devices are used to execute the method described in any one of the previous purposes.

[0025] Specifically, the vehicle-mounted detection device is provided with a first Bluetooth module, and the audio device is provided with a second Bluetooth module. The vehicle-mounted detection device performs data communication with the second Bluetooth module of the audio device through the first Bluetooth module.

[0026] Furthermore, the multiple audio devices are respectively installed in the doors and / or dashboard of the car.

[0027] Compared with the prior art, the present invention has many advantages, including but not limited to:

[0028] On the one hand, the audio device of the audio alarm method of the present invention is directly electrically connected to the vehicle-mounted detection equipment, and the audio device directly receives the wireless alarm signal generated by the vehicle-mounted detection equipment when detecting driving safety data. After receiving the wireless alarm signal, the audio device issues an audible alarm; this allows the audio device to still operate independently and issue an audible alarm even when the car's central control host is damaged or crashes, and the driver will not be unable to obtain driving data due to damage or crash of the car's central control host, thereby reducing driving safety.

[0029] On the other hand, the audio alarm method of the present invention is implemented based on the audio alarm system. Through this method, the on-board detection equipment installed on the car can be directly electrically connected to the audio equipment, so that the on-board detection equipment installed on the car does not need to be separately configured with a display screen. The on-board detection equipment is directly electrically connected to the audio equipment and outputs driving safety data by means of audio alarms.

[0030] Additional aspects and advantages of the present invention will be set forth in part in the following description, will become apparent from the following description, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0032] Figure 1 2 is a circuit diagram of the sound alarm system of the present invention.

[0033] Figure 2 Schematic diagram of the flow of the sound alarm method of the present invention.

[0034] Figure 3 FIG. 1 is a flow chart of step S12 of the sound alarm method of the present invention.

[0035] Figure 4 FIG. 1 is a flow chart of step S13 of the sound alarm method of the present invention. DETAILED DESCRIPTION

[0036] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0037] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0038] Those skilled in the art should understand that, although the various methods of the present invention are described based on the same concepts and thus exhibit commonality, unless otherwise specified, these methods can be independently implemented. Similarly, the various embodiments disclosed herein are all based on the same inventive concept. Therefore, concepts expressed in the same manner, as well as concepts expressed differently but appropriately modified for convenience, should be understood as equivalent.

[0039] Unless expressly stated to be mutually exclusive, the various embodiments disclosed herein may combine the relevant technical features of the various embodiments to flexibly construct new embodiments, as long as such combination does not deviate from the inventive spirit of the present invention and can meet the needs of the prior art or address certain deficiencies in the prior art. Persons skilled in the art should be aware of such flexibility.

[0040] The present invention provides an audio alarm method, which enables direct data transmission between an audio device and various vehicle-mounted detection devices, so that the audio device directly receives a wireless alarm signal sent by the vehicle-mounted detection device. After receiving the wireless alarm signal, the audio device converts the wireless alarm signal into an audio signal, and drives the speaker of the audio device to sound an alarm through the audio signal to assist the driver in driving. The vehicle-mounted detection device does not need to be electrically connected to the car's central control host to output detection information, thereby improving driver safety.

[0041] To implement the audio warning method, the present invention provides an audio warning system, which includes an on-vehicle detection device 10, a plurality of audio devices 20, and a central control host of an automobile.

[0042] The on-board detection device 10 is used to detect driving safety data while the vehicle is in motion, assisting the driver in driving the vehicle by collecting driving safety data. The on-board detection device 10 may include multiple on-board detection devices 10, each of which collects different types of driving safety data from the vehicle. For example, the on-board detection devices 10 may be any one or more of a parking assistance device, a collision warning device, a blind spot detection device, and a tire pressure monitoring device.

[0043] The vehicle-mounted detection device 10 includes a collection module 11, a first control module 12, and a first communication module 13. The vehicle-mounted detection device 10 collects driving data through its collection module 11. The collection module 11 sends the collected driving data to the first control module 12. The first control module 12 converts the driving data into a wireless alarm signal, and the first control module 12 transmits the wireless alarm signal to the outside through the first communication module 13. In one embodiment, the first communication module 13 is a Bluetooth module.

[0044] The audio device 20 includes a speaker 21, a second control module 22 and a second communication module 23. The audio device 20 receives the wireless alarm signal emitted by the first communication module 13 of the vehicle-mounted detection equipment 10 through its second communication module 23. The second communication module 23 sends the received wireless alarm signal to the second control module 22. The second control module 22 converts the wireless alarm signal into an audio signal. The second control module 22 outputs the audio signal to the speaker 21, driving the speaker 21 to sound an alarm to assist the driver in driving.

[0045] The audible warning system includes a plurality of audible devices 20, each of which has unique identity information. The plurality of audible devices 20 transmit coded signals to the outside, each of which includes the identity information of the corresponding audible device 20. This allows each audible device 20 to receive the coded signals of the corresponding audible warning system. The audible device 20 arranges the obtained identity information of the other audible devices accordingly, generates an audible list of the audible warning system, and sets the audible device corresponding to one of the identity information in the audible list as the master of the audible warning system, while the remaining audible devices are set as slaves. The audible device set as the master receives the wireless alarm signal sent by the vehicle-mounted detection device 10, while the audible device set as the slave does not receive the wireless alarm signal sent by the vehicle-mounted detection device 10. The audible device set as the master converts the wireless alarm signal into an audio signal and then transmits the audio signal to each audible device set as the slave, so that the audible devices set as the master and the slave can sound an alarm synchronously, thereby increasing the intensity of the alarm and assisting the driver in driving.

[0046] In one embodiment, the audio device 20 is a built-in audio system of the vehicle, and multiple audio devices 20 are installed in the vehicle doors and / or the vehicle dashboard. For example, there are two audio devices 20, one on the left door and the other on the right door of the vehicle.

[0047] In one embodiment, the audio devices 20 are electrically connected to each other via cables, and / or the audio devices 20 are wirelessly connected to each other via their respective second communication modules 23 .

[0048] The vehicle's own central control unit is electrically connected to multiple audio devices 20 and multiple onboard detection devices 10. The vehicle's central control unit can output audio signals to the audio devices 20, driving the corresponding audio devices 20 to produce sound. Furthermore, the audio devices 20 are electrically connected to the vehicle's power supply, allowing the audio devices 20 and the onboard detection devices 10 to operate independently without being electrically connected to the vehicle's central control unit.

[0049] In an exemplary embodiment of the present invention, the audible alarm method is performed based on the above-mentioned audible alarm system. Specifically, the audible alarm method includes the following specific steps:

[0050] Step S11: The vehicle-mounted detection equipment detects driving safety data and generates a corresponding wireless alarm signal:

[0051] During driving or parking, the on-board detection device continuously detects driving safety data through its acquisition module. The acquisition module transmits the acquired driving safety data to the first control module of the on-board detection device. The first control module encapsulates the driving safety data in a wireless alarm signal. The first control module outputs the wireless alarm signal to the first communication module, which then transmits the wireless alarm signal externally. For example, the on-board detection device is a collision warning device. The collision warning device continuously collects obstacle data through its acquisition module. The acquisition module outputs the acquired obstacle data to the first control module of the collision warning device. The first control module encapsulates the obstacle data in a wireless alarm signal, which then transmits the wireless alarm signal externally through the first communication module.

[0052] In step S12, the audio device connected to the car's central control host detects its own identity status signal, monitors the wireless alarm signal when the identity status is represented as the host, and converts the alarm signal into a corresponding audio signal in response to the wireless alarm signal. When the identity status represents itself as the slave, the slave receives the audio signal sent by the master:

[0053] To prevent multiple audio devices from being individually connected to the onboard detection device and address the issue of multiple audio devices repeatedly issuing the same vehicle detection information, one of the audio devices in the audio warning system is connected to the onboard detection device, while the remaining audio devices are connected to the audio device connected to the onboard detection device, allowing multiple audio devices to issue warnings synchronously. Specifically, the multiple audio devices in the audio warning system can determine their identity status based on their identity information. The identity status information is classified into two types: master and slave. Among the multiple audio devices, only one has the master status, while the remaining audio devices have the slave status.

[0054] The audio device in the master state monitors the wireless alarm signals sent by each vehicle-mounted detection device and is electrically connected to the audio device in the slave state. The audio device in the slave state does not monitor the wireless alarm signals sent by the vehicle-mounted detection device and is only electrically connected to the audio device in the master state.

[0055] After receiving the wireless warning signal sent by the vehicle-mounted detection equipment, the audio device in the master status parses the wireless warning signal to extract the corresponding driving safety data and generates an audio signal based on the driving safety data. After generating the audio signal, the audio device in the master status outputs the audio signal to its speaker, which issues an audible warning through the speaker. The audio device in the master status also sends the audio signal to each audio device in the audio warning system in the slave status. After receiving the audio signal sent by the master status, the audio device in the slave status outputs the audio signal to its speaker, which issues an audible warning through the speaker. This allows the audio device in the master status and the audio device in the slave status to issue audible warnings synchronously, allowing the driver to obtain the corresponding driving information and assisting the driver in driving the car.

[0056] In one embodiment, step S12 further includes the following steps, through which the identity status of each audio device in the audio system can be determined. The specific steps are as follows:

[0057] Step S121: When the audio device is started, it broadcasts a coded signal corresponding to its own identity status into the air:

[0058] Each audio device in the audio alarm system has unique identity information, and the corresponding audio device can be identified by the unique identity information. After the audio device is powered on, it encapsulates its identity information in a coded signal, and then broadcasts the coded signal to the outside through the first communication module.

[0059] In step S122, the audio device obtains the received external coded signal and determines an audio list, which includes the identity information and identity status of the external audio device corresponding to each coded signal:

[0060] After the audio device of the audio alarm system (referred to as the first audio device) broadcasts its corresponding coded signal or after a predetermined period of time, the first communication module receives the coded signal broadcast by other audio devices in the audio alarm system (referred to as the second audio device) (referred to as the coded signal broadcast by the second audio device as the second coded signal). After receiving the second coded signal broadcast by each second audio device in the audio alarm system, the first audio device parses the corresponding identity information from the received second coded signal, and the identity information corresponds to the second audio device in the audio alarm system. Each audio device in the audio alarm system is a first audio device when executing the audio alarm method. Preferably, the number of the second audio devices is one or more.

[0061] After a first audio device obtains the identity information of multiple second audio devices in the audio alarm system, a first control module of the second audio device constructs an audio list based on the identity information of the first audio device and the identity information of the second audio device. The audio list includes the identity information of the first audio device and the identity information of the second audio device. The multiple identities in the audio list are arranged in a predetermined arrangement, which can be a sequential arrangement.

[0062] The first audio device determines, from the audio list, an audio device with a master status and an audio device with a slave status using a predetermined screening rule. The audio device with a master status is either the first audio device or the second audio device, and the audio device with a slave status is either the second audio device or the first audio device. There is only one audio device with a master status in the audio alarm system, and there are one or more audio devices with a slave status in the audio alarm system.

[0063] In one embodiment, in one embodiment, the step S122 further includes the following specific steps:

[0064] In step S1221, the identity information is a unique number. Multiple unique numbers are arranged in order to form the audio list. The identity status of the audio device corresponding to the first or last unique number in the audio list is host:

[0065] The identity information is a unique number, and the multiple identity information in the audio list is arranged according to the numerical and / or alphabetical order of the unique number. The identity status of the audio device corresponding to the first or last unique number is the master. For example, the multiple identity information of the audio devices in the audio alarm system are 03, 02, and 01, respectively. The audio list constructed in numerical order is 01, 02, and 03. If the identity status of the audio device with the first unique number is the master, then the identity status of the audio device corresponding to the unique number 01 is the master, and the identity status of the audio devices corresponding to the unique numbers 02 and 03 are slaves.

[0066] In step 123, the audio device queries the identity status of each external audio device in the audio list to determine whether its identity status is a master. If not, the identity status of the audio device is configured as a slave that receives audio signals from the master and stops monitoring wireless alarm signals. If yes, the identity status of the audio device is configured as a master that provides audio signals to the audio device and starts monitoring wireless alarm signals.

[0067] After the first audio device constructs the audio list based on step S122 and determines the identity information representing the host from the audio list, the first audio device compares the identity information representing the host with its own identity information. If the identity information representing the host does not correspond to the identity information of the first audio device, the first audio device configures its own identity status as a slave, connects to the audio device whose identity status is a master based on the identity information representing the host, and stops monitoring the wireless alarm signal transmitted by the vehicle-mounted detection device.

[0068] The first audio device compares the host's identity information with its own identity information. If the host's identity information matches the first audio device's identity information, the first audio device configures its own identity status as the host and the second audio device's identity status as the slave. The first audio device, with the host's identity status, establishes a communication link with the second audio device, with the slave's identity status. The first audio device continuously monitors wireless alarm signals transmitted by various on-board detection devices, receives the wireless alarm signals, generates audio signals based on the wireless alarm signals, and outputs the audio signals to the speaker of the first audio device to sound an alarm. Simultaneously, the first audio device, with the host's identity status, also synchronously outputs the audio signals to the second audio device, with the slave's identity status, driving the second audio device to synchronously sound an alarm to increase the intensity of the alarm.

[0069] In one embodiment, when the audio device with the identity status of the host is damaged, the remaining audio devices of the audio alarm system select a new audio device with the identity status of the host from the remaining audio devices according to step S12.

[0070] Step S13: The audio device drives the speaker to sound an alarm according to the audio signal.

[0071] After receiving the audio signal, the first control module of the audio device outputs the audio signal to the speaker, which then issues an audible warning. The audio device may issue a warning using sounds of different pitches, timbres, intensities, and / or durations depending on the audio signal. For example, different audio signals correspond to different sentences.

[0072] In one embodiment, step S13 further includes the following specific steps:

[0073] In step S131, the audio device parses the wireless alarm signal to obtain corresponding driving safety data, converts the driving safety data into corresponding danger thresholds, and outputs corresponding audio signals based on the danger thresholds.

[0074] After the audio device with the master status obtains the wireless alarm signal transmitted by the vehicle-mounted detection device, the audio device with the master status parses the driving safety data encapsulated in the wireless alarm signal. The first control module of the audio device with the master status processes the driving safety data based on a predetermined danger threshold calculation algorithm to obtain the danger threshold corresponding to the driving safety data. After obtaining the danger threshold and the device type of the vehicle-mounted detection device corresponding to the driving safety data, the first control module generates a corresponding audio signal. The first control module of the audio device with the master status outputs the audio signal to the speaker of the audio device with the master status, and the audio device with the master status also outputs the generated audio signal to the audio device with the slave status, driving the audio device with the slave status and the audio device with the master status to synchronously sound an alarm.

[0075] Step S132: the audio device drives the loudspeaker to emit sounds of different pitches and / or different timbres and / or lengths according to different audio signals.

[0076] The audio device outputs the acquired audio signal to the speaker, which then plays the corresponding audio. Depending on the onboard detection device the audio signal corresponds to, the speaker will produce different tones. For example, if the audio signal corresponds to a tire pressure monitoring device, the speaker will play a voice message about the tire pressure, such as "Tire pressure is 2.5 kPa."

[0077] When the audio signal corresponds to different danger thresholds, the speaker emits sounds of different pitches, timbres, and / or durations. For example, when the danger threshold is level 1, the speaker emits a sound with a strength of 40 decibels; when the danger threshold is level 2, the speaker emits a sound with a strength of 50 decibels; and when the danger threshold is level 3, the speaker emits a sound with a strength of 60 decibels.

[0078] In one embodiment, the wireless alarm signal also includes a random number that pairs the vehicle-mounted detection device with the audio device, allowing the vehicle-mounted detection device to transmit the wireless alarm signal in a targeted manner toward the audio device, thereby preventing the wireless alarm signal from being received by other devices within the vehicle. Preferably, the random number in the wireless alarm signal is associated with the identity information of the audio device in the master status, ensuring that only the audio device in the master status receives the wireless alarm signal transmitted by the vehicle-mounted detection device.

[0079] The wireless alarm signal also includes a check code, and the audio device verifies the integrity of the wireless alarm signal through the check code.

[0080] In one embodiment, the audio alarm method further includes step S14, wherein the audio device monitors the wireless alarm signal while simultaneously monitoring the audio data of the vehicle central control host. After receiving the audio data, the audio device converts the audio data into a corresponding audio signal and drives the speaker to produce sound.

[0081] The audio devices in the audio warning system are built-in audio devices of the vehicle. Each audio device is electrically connected to the vehicle's central control unit. When the vehicle's central control unit needs to output audio, the vehicle's central control unit outputs the audio data to the audio device. The first control module of the audio device converts the audio data into an audio signal. The first control module of the audio device outputs the audio signal to the speaker, driving the speaker to produce sound. For example, after receiving a song play command, the vehicle's central control unit outputs the song's audio data to the audio device. The first control module of the audio device converts the audio data into an audio signal. The first control module outputs the audio signal to the speaker, driving the speaker to play the song.

[0082] To sum up, the audio alarm method of the present invention is implemented based on the audio alarm system, so that the audio equipment can directly obtain the wireless alarm signal sent by each vehicle-mounted detection equipment. After obtaining the wireless alarm signal, the audio equipment generates an audio signal and drives the speaker to sound an alarm, so that the audio equipment does not need to obtain the alarm signal from the car's central control host before it can sound an alarm, which solves the problem that the display screen and audio equipment cannot sound an alarm when the car's central control host is damaged or crashes, and assists the driver in driving safely.

[0083] Those skilled in the art will appreciate that each block in these structural diagrams and / or block diagrams and / or flow charts, as well as combinations of blocks in these structural diagrams and / or block diagrams and / or flow charts, can be implemented using computer program instructions. Those skilled in the art will appreciate that these computer program instructions can be provided to a general-purpose computer, a specialized computer, or a processor of other programmable data processing methods for implementation, thereby executing the schemes specified in the blocks or multiple blocks of the structural diagrams and / or block diagrams and / or flow charts disclosed in this application through the processor of the computer or other programmable data processing method.

[0084] Those skilled in the art will appreciate that the steps, measures, and schemes in the various operations, methods, and processes discussed in this application may be interchanged, modified, combined, or deleted. Furthermore, other steps, measures, and schemes in the various operations, methods, and processes discussed in this application may also be interchanged, modified, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and schemes in the prior art that are similar to those disclosed in this application may also be interchanged, modified, rearranged, decomposed, combined, or deleted.

[0085] The above description is only part of the implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An audible alarm method, characterized in that: The steps include: The vehicle-mounted detection equipment detects driving safety data and generates corresponding wireless alarm signals; An audio device electrically connected to the vehicle central control host detects its own identity status information, monitors a wireless alarm signal when the identity status indicates that the audio device is a master, converts the alarm signal into a corresponding audio signal in response to the wireless alarm signal, and receives the audio signal sent by the master when the identity status indicates that the audio device is a slave; When the audio device is activated, it broadcasts a coded signal corresponding to its own identity status into the air; The audio device obtains the received external coded signal and determines an audio list, which includes identity information and identity status of the external audio device corresponding to each coded signal; The audio device queries the identity status of each external audio device in the audio list to determine whether its identity status is a master. If not, the identity status of the audio device is configured as a slave that receives audio signals from the master and suspends monitoring of wireless alarm signals. If yes, the identity status of the audio device is configured as a master that provides corresponding audio signals to the external audio device and starts monitoring wireless alarm signals. The audio device drives the loudspeaker to sound an alarm according to the audio signal.

2. The method according to claim 1, wherein The vehicle-mounted detection equipment is any one or more of a parking assistance device, a collision warning device, a blind spot detection device, and a tire pressure detection device.

3. The method according to claim 1, wherein While monitoring the wireless alarm signal, the audio device also monitors the audio data of the car central control host. After receiving the audio data, the audio device converts the audio data into a corresponding audio signal to drive the speaker to produce sound.

4. The method according to claim 1, wherein The wireless alarm signal includes a random number for pairing the vehicle-mounted detection device with the audio device and a verification code for the audio device to verify the wireless alarm signal.

5. The method according to claim 1, wherein The step of the audio device acquiring the received external coded signal and determining an audio list including the identity information and identity status of the external audio device corresponding to each coded signal includes the following specific steps: The identity information is a unique number. Multiple unique numbers are arranged in sequence to form the audio list. The identity status of the audio device corresponding to the first or last unique number in the audio list is host.

6. The method according to claim 1, wherein The step of the audio device driving the loudspeaker to sound an alarm according to the audio signal includes the following specific steps: The audio device parses the wireless warning signal to obtain corresponding driving safety data, converts the driving safety data into corresponding danger thresholds, and outputs corresponding audio signals based on the danger thresholds; The audio device drives the loudspeaker to emit sounds of different pitches and / or different timbres and / or sound intensities and / or sound lengths according to different audio signals.

7. An audible alarm system, characterized in that: The system includes an on-vehicle detection device and multiple audio devices, wherein the multiple audio devices are electrically connected to the automobile central control host, and the audio devices are used to execute the method according to any one of claims 1 to 6.

8. The audible warning system according to claim 7, wherein: The vehicle-mounted detection device is provided with a first Bluetooth module, and the audio device is provided with a second Bluetooth module. The vehicle-mounted detection device performs data communication with the second Bluetooth module of the audio device through the first Bluetooth module.

9. The audible warning system according to claim 7, wherein: The multiple audio devices are respectively installed in the doors and / or the dashboard of the car.

Images