Electric bicycle and audio playing system for electric bicycle

Abstract

The invention discloses an electric bicycle and an audio playing system for the electric bicycle, and the system comprises a communication module which is used for obtaining the running state information of the electric bicycle, and the running state information comprises steering information, speed information and acceleration information; the storage module is used for storing a plurality of audios to be played; the control module is used for reading target audios from the storage module according to the driving state information, and the target audios are selected from the multiple audios to be played; and the audio playing module is used for acquiring the target audio from the control module and playing the target audio. According to the audio playing system provided by the invention, the audio corresponding to the running state is played in the running process of the electric bicycle, so that surrounding pedestrians or bicycle owners can know the running state of the electric bicycle.

Description

Technical Field

[0001] The present application relates to the technical field of electric bicycles, and in particular to an electric bicycle and an audio playback system for the electric bicycle. Background Art

[0002] Electric bicycles have become an indispensable means of transportation in modern life due to their economical, environmentally friendly, efficient and convenient features. In order to reduce noise pollution, the electric motors currently installed in electric bicycles have the characteristics of low noise. Although this solution reduces the noise pollution generated by electric bicycles, it will make it difficult for pedestrians around to notice that there are electric bicycles approaching, which may easily cause safety hazards. Summary of the invention

[0003] One of the technical objectives of the embodiments of the present application is to provide an audio playback system for an electric bicycle, which can enable pedestrians or owners around the electric bicycle to know the driving status of the electric bicycle.

[0004] An embodiment of the present application provides an audio playback system for an electric bicycle, the system comprising: a communication module, used to obtain driving status information of the electric bicycle, the driving status information comprising: steering information, vehicle speed information and acceleration information; a storage module, used to store multiple audios to be played; a control module, used to read a target audio from the storage module according to the driving status information, the target audio being selected from the multiple audios to be played; and an audio playback module, used to obtain the target audio from the control module and play the target audio.

[0005] Optionally, the target audio satisfies at least one of the following: the content of the target audio matches the driving status information; the frequency of the target audio matches the driving status information; and the volume of the target audio matches the driving status information.

[0006] Optionally, the audio playback module includes: a power amplifier and a speaker, wherein the power amplifier is used to amplify the target audio signal and send the amplified signal to the speaker.

[0007] Optionally, the control module is also used to generate a light control signal based on the target audio, and the light control signal is used to control the color and / or brightness of the car lights; the system also includes: a light driving circuit, used to drive the car lights to emit light according to the light control signal.

[0008] Optionally, the communication module obtains the driving status information of the electric bicycle through a CAN bus and / or an SPI bus.

[0009] Optionally, the system further includes: a power supply interface for connecting to an external power supply; and a step-down module, wherein an input end of the step-down module is connected to the power supply interface, and an output end of the step-down module is connected to the control module.

[0010] Optionally, the driving status information also includes: the distance between the electric bicycle and an obstacle.

[0011] Optionally, the types of audio to be played stored in the storage module include: prompt voice, music and sound waves; the communication module is also used to obtain a type selection instruction from a user terminal, and the control module is used to determine the type of the target audio according to the type selection instruction.

[0012] Optionally, the types of audio to be played stored in the storage module include: prompt voice, music and sound waves; the driving status information also includes: the flow of people around the electric bicycle, and the control module is used to determine the type of the target audio according to the flow of people.

[0013] An embodiment of the present application also provides an electric bicycle, comprising the above-mentioned audio playback system for an electric bicycle.

[0014] Compared with the prior art, the technical solution of the embodiment of the present application has the following beneficial effects:

[0015] In the scheme of the embodiment of the present application, the audio playback system for an electric bicycle includes: a communication module, used to obtain the driving status information of the electric bicycle, the driving status information including: steering information, vehicle speed information and acceleration information; a storage module, used to store multiple audios to be played; a control module, used to read the target audio from the storage module according to the driving status information, the target audio is selected from the multiple audios to be played; an audio playback module, used to obtain the target audio from the control module and play the target audio.

[0016] In the above system, the communication module obtains the driving state information of the electric bicycle, and the control module reads the target audio from the storage module based on the driving state information and sends it to the audio playback module for playback. Since the target audio is determined based on the driving state information, the driving state of the electric bicycle can be prompted to pedestrians around the electric bicycle by playing the target audio. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the architecture of an audio playback system for an electric bicycle in an embodiment of the present application;

[0018] Figure 2 It is a flow chart of an audio playback method for an electric bicycle in an embodiment of the present application;

[0019] Figure 3 It is a flow chart of another audio playback method for an electric bicycle in an embodiment of the present application. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and beneficial effects of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0021] Reference Figure 1 , Figure 1 FIG. 1 is a schematic diagram of the architecture of an audio playback system for an electric bicycle in an embodiment of the present application. Figure 1 As shown, the audio playing system 1 may include: a communication module 11 , a storage module 12 , a control module 13 and an audio playing module 14 .

[0022] Specifically, the communication module 11 is connected to the control module 13. The communication module 11 can be used to obtain the driving state information of the electric bicycle. The driving state information may include: steering information, vehicle speed information and acceleration information.

[0023] The steering information may be the steering angle of the electric bicycle, wherein the steering angle may be detected by a steering angle detection unit configured on the electric bicycle. The vehicle speed information may be the rotation speed of the electric motor of the electric bicycle, or may be the vehicle speed converted based on the rotation speed of the electric motor. The acceleration information may be obtained based on the throttle signal and / or brake signal of the electric bicycle.

[0024] More specifically, the communication module 11 can obtain the current driving state information from the vehicle system, and send the obtained driving state information to the control module 13. By obtaining the current driving state information, the control module 13 can determine the current driving state of the electric bicycle.

[0025] Exemplarily, based on the steering information, the control module 13 can determine the steering state of the electric bicycle. For example, the steering state can be: turning left, turning right, going straight, or making a U-turn.

[0026] Exemplarily, based on the vehicle speed information, the control module 13 can determine the current speed range of the electric bicycle. For example, speed ranges corresponding to a plurality of speed states can be pre-configured, and the control module 13 can determine the current speed state of the electric bicycle according to the current vehicle speed information. The speed state can be: low speed, medium speed, or high speed.

[0027] For example, based on the acceleration information, the control module 13 may determine whether the electric bicycle is currently in an accelerating state or a decelerating state.

[0028] For example, if the acceleration value indicated by the acceleration information is a positive value and the absolute value of the acceleration is greater than or equal to a preset first threshold, the control module 13 determines that the electric bicycle is currently in an accelerating state. The first threshold is greater than 0. For another example, if the acceleration value indicated by the acceleration information is a negative value and the absolute value of the acceleration is greater than or equal to a preset second threshold, the control module 13 determines that the electric bicycle is currently in a decelerating state. The second threshold is greater than 0. Through this setting, it can be ensured that slight speed changes during riding will not be judged as acceleration or deceleration, and the state of the electric bicycle can be more accurately determined, so that the audio played by the electric bicycle can more accurately indicate the state of the electric bicycle.

[0029] For another example, the acceleration ranges corresponding to the various speed change states can be pre-configured. The control module 13 can determine the current acceleration range of the electric bicycle based on the absolute value of the acceleration value and the acceleration ranges corresponding to the various speed change states, thereby determining the acceleration gear and deceleration speed.

[0030] Exemplarily, the control module 13 can determine the driving state of the electric bicycle based on the speed information and the acceleration information. Specifically, if the speed indicated by the speed information is less than or equal to the first speed threshold, and the acceleration value indicated by the acceleration information is a positive value, it means that the driving state of the electric bicycle is the starting acceleration state. If the speed indicated by the speed information is greater than the first speed threshold, and the acceleration value indicated by the acceleration information is a positive value, it means that the driving state of the electric bicycle is the driving acceleration state. If the speed indicated by the speed information is less than or equal to the first speed threshold, and the acceleration value indicated by the acceleration information is a negative value, it means that the driving state of the electric bicycle is the parking deceleration state. If the speed indicated by the speed information is greater than the first speed threshold, and the acceleration value indicated by the acceleration information is a negative value, it means that the driving state of the electric bicycle is the driving deceleration state.

[0031] In a possible implementation, the communication module 11 may be connected to the vehicle system via a CAN bus and / or an SPI bus, and the communication module 11 may obtain the driving status information of the electric bicycle via the CAN bus and / or the SPI bus.

[0032] In a possible implementation, the communication module 11 can also be connected to a user's terminal device. The terminal device can be a mobile phone, a tablet computer, etc., but is not limited thereto. Specifically, the communication module 11 can obtain an audio signal of music or broadcast from the terminal device. The terminal device can also send a user's instruction to the communication module 11. The instruction can be a type selection instruction, a lighting control instruction, a mode setting instruction, etc. as described below. Exemplarily, the communication module 11 can be connected to the terminal device via Bluetooth.

[0033] Specifically, the storage module 12 is connected to the control module 13, and the storage module 12 can be used to store multiple audios to be played. Exemplarily, the storage module 12 can be a flash memory, but it is not limited to this. The embodiment of the present application does not limit the type of the storage module 12. Exemplarily, the control module 13 can be a microcontroller, but it is not limited to this.

[0034] Exemplarily, the storage module 12 may store multiple types of audio. Specifically, the types of audio to be played stored in the storage module 12 may include: prompt voice, music and sound waves. Among them, the sound wave refers to the roaring sound emitted when the engine is running.

[0035] In a specific implementation, the control module 13 can determine the target audio according to the driving state information. The control module 13 can read the target audio from the storage module 12. Alternatively, the control module 13 can use the music or broadcast audio signal obtained from the terminal device as the target audio.

[0036] For more information about target audio, see the following Figure 2 The relevant description will not be repeated here.

[0037] Furthermore, the audio playing module 14 is connected to the control module 13. The control module 13 can send target audio to the audio playing module 14, and the audio playing module 14 plays the target audio.

[0038] In a specific implementation, the audio playback module 14 may include: a power amplifier 141 and a speaker 142. The power amplifier 141 may be used to amplify the target audio signal and send the amplified target audio signal to the speaker 142. The speaker 142 may be a speaker on the electric bicycle.

[0039] Specifically, the control module 13 may include a digital-to-analog converter (not shown), which is used to convert digital signals into analog signals. The control module 13 can output the audio of the analog signal to the power amplifier 141, and the power amplifier 141 amplifies the signal and drives the speaker 142 to play the audio.

[0040] Furthermore, the audio playback system 1 may also include: a light driving circuit 15, the input end of the light driving circuit 15 is connected to the output end of the control module 13, and the output end of the light driving circuit 15 is connected to the headlight of the electric bicycle (not shown).

[0041] In a specific implementation, the control module 13 may send a light control signal to the light driving circuit 15, and the light driving circuit 15 may drive the vehicle lights to emit light according to the light control signal.

[0042] The light control signal may be used to control the color and / or brightness of the vehicle lights.

[0043] In a possible implementation, the control module 13 may generate a light control signal according to the target audio. For example, the color and / or brightness of the headlights may match the volume and / or frequency of the target audio, so that the headlights have the effect of ambient lighting.

[0044] In another possible implementation, the terminal device may send a light control instruction to the communication module 11, and the control module 12 may generate a light control signal based on the received light control instruction. For example, the light control instruction may be "turn on the lights", "turn off the lights", "turn on the light effects", and "turn off the light effects". If the light control instruction is "turn on the light effects", the control module 13 may generate a light control signal based on the target audio so that the color and / or brightness of the lights can match the volume and / or frequency of the target audio.

[0045] Furthermore, the audio playback module 1 may also include: a power interface 16 and a step-down module 17. The power interface 16 is used to connect to an external power source. Specifically, the power interface 16 can be used to connect to the main power supply of the electric bicycle to power various loads in the audio playback system 1.

[0046] Furthermore, the input end of the voltage reduction module 17 is connected to the power interface 16, and the output end of the voltage reduction module 17 is connected to the control module 13. The voltage reduction module 17 can be used to reduce the voltage obtained by the power interface 16.

[0047] In a specific implementation, each module in the audio playback system 1 may also be configured with an electrostatic device to provide electrostatic protection for each module, so as to improve the impact resistance of the audio playback system 1 .

[0048] For another example, each module in the audio playback system 1 may further include: a filter device (not shown), which can filter the instantaneous pulses generated by the input signal or power supply to improve the impact resistance of the audio playback system 1 and reduce the interference of internal noise of the system.

[0049] The specific content of the target audio determined by the control module 13 is described in detail below.

[0050] Reference Figure 2 , Figure 2 This is an audio playback method for an electric bicycle in an embodiment of the present application. Figure 2 The method shown may be executed by a control module herein. Figure 2 The method shown may include the following steps:

[0051] S21, reading the target audio from the storage module according to the driving status information; wherein the target audio satisfies at least one of the following: the content of the target audio matches the driving status information, the frequency of the target audio matches the driving status information, and the volume of the target audio matches the driving status information.

[0052] S22, sending the target audio to the audio playing module.

[0053] Specifically, the control module may be pre-configured with a first mapping relationship between the driving state and the audio to be played.

[0054] After the control module obtains the driving state information, it can first determine the current driving state of the electric bicycle, and then determine the audio to be played corresponding to the current driving state according to the first mapping relationship, that is, the target audio. Thus, when the target audio is played, pedestrians around the electric bicycle can know the state of the electric bicycle.

[0055] Exemplarily, for each driving state, the content of the audio to be played corresponding to the driving state is used to prompt that the electric bicycle is in the driving state. For example, if the driving state is the acceleration state, the target audio is the first voice, and the content of the first voice prompts that the electric bicycle is in the acceleration state; if the driving state is the deceleration state, the target audio is the second voice, and the content of the second voice is used to prompt that the electric bicycle is in the deceleration state; if the driving state is the turning state, the target audio is the third voice, and the content of the third voice prompts that the electric bicycle is in the turning state.

[0056] For another example, as described above, there may be multiple steering states, such as left turn, right turn, straight going, and U-turn. The storage module may pre-store the audio to be played corresponding to each steering state, thereby allowing the target audio to further indicate the steering state of the electric bicycle.

[0057] For another example, as described above, there may be multiple speed states, such as low speed, medium speed, and high speed. The storage module may pre-store the audio to be played corresponding to each speed state, thereby allowing the target audio to further indicate the speed state of the electric bicycle.

[0058] For another example, as described above, there may be multiple acceleration states, for example, a starting acceleration state and a driving acceleration state. The storage module may pre-store the audio to be played corresponding to each acceleration state, thereby allowing the target audio to further indicate the acceleration state of the electric bicycle.

[0059] For another example, as described above, there may be multiple deceleration states, for example, a parking deceleration state and a driving deceleration state. The storage module may pre-store the audio to be played corresponding to each deceleration state, thereby allowing the target audio to further indicate the acceleration state of the electric bicycle.

[0060] Considering that the driving state of an electric bicycle is not single, the electric bicycle may be in multiple states at the same time. For example, the electric bicycle may be in a turning state and in a low speed state. If the driving state of the electric bicycle is indicated by the content of the target audio, conflicts may occur.

[0061] In one embodiment, the content of the target audio matches the steering state of the electric bicycle, that is, the content of the target audio indicates which steering state the electric bicycle is in. In addition, the frequency or volume of the target audio matches the speed state of the electric bicycle. That is, the control module can first determine the content of the target audio according to the current steering state, and then determine the volume or frequency of the target audio based on the current speed state.

[0062] In another embodiment, the content of the target audio matches the steering state of the electric bicycle, and the frequency or volume of the target audio matches the acceleration state or deceleration state of the electric bicycle.

[0063] In a possible implementation, the electric bicycle may be equipped with an obstacle detection device, which may be used to detect the distance between the electric bicycle and the obstacle. For this purpose, the driving status information may also include: the distance between the electric bicycle and the obstacle. The storage module may pre-store audio to be played corresponding to each of a plurality of distance ranges, and the correspondence between the distance range and the audio to be played is recorded as a second mapping relationship. Among them, the content of the audio to be played may indicate the corresponding distance range. The control module may determine the target audio based on the distance between the electric bicycle and the obstacle and the second mapping relationship. The target audio is the audio to be played corresponding to the distance range of the current distance. Thus, by playing the target audio, distance warning can be achieved on the electric bicycle.

[0064] Reference Figure 3 , Figure 3 This is another audio playback method for an electric bicycle in the embodiment of the present application. Figure 3 The method shown may be executed by a control module herein. Figure 3 The illustrated method may include S31 to S33.

[0065] S31, determining the type of the target audio according to the type selection instruction.

[0066] S32, determining target audio according to the driving state information.

[0067] S33, sending the target audio to the music playing module.

[0068] Specifically, the type selection instruction may be obtained from the user's terminal device or the vehicle system. For example, the user may set the type of the target audio through an application installed on the user terminal, thereby sending the type selection instruction to the audio playback system or the vehicle system. The type of the target audio may be: prompt voice, music, or sound waves.

[0069] As a variation, the type of target audio may be determined based on the flow of people around the electric bicycle. Specifically, the electric bicycle may be equipped with a device for detecting the flow of people around it. For example, an infrared device may be used to detect the flow of people around the electric bicycle, and the embodiments of the present application do not limit the method or device for detecting the flow of people. Furthermore, the control module may determine the type of target audio based on the detected flow of people.

[0070] In one example, a first flow threshold and a second flow threshold may be pre-set, wherein the second flow threshold is greater than the first flow threshold. If the flow of people is less than or equal to the first flow threshold, it means that there are few people around the electric bicycle, and the type of the target audio may be determined to be sound waves. If the flow of people is greater than the first flow threshold and less than or equal to the second flow threshold, it means that the flow of people in the driving environment of the electric bicycle is medium, for example, the electric bicycle is in a park or suburbs, etc., and the type of the target audio may be determined to be music. If the flow of people is greater than the third flow threshold, it means that there are many people in the driving environment of the electric bicycle, for example, the electric bicycle is driving in the city, etc., and the type of the target audio may be determined to be a prompt voice. With such a solution, the appropriate audio may be selected for playback based on the surrounding flow of people, which can take into account the driver's driving experience while avoiding excessive interference to the surrounding environment.

[0071] Exemplarily, for each type, the storage module may store a plurality of to-be-played audios of the type. In S32, the control module may determine the target audio from the plurality of to-be-played audios of the type indicated by the type selection instruction according to the driving state information.

[0072] In a possible implementation, the type indicated by the type selection instruction is a prompt voice, then in S32, the terminal device can determine a prompt voice that matches the driving state according to the driving state information. In this case, the content of the target voice can match the driving state.

[0073] Exemplarily, for each type, the storage module may store an audio to be played of the type, and in S32, the control module may determine the frequency and / or volume of the audio to be played according to the driving state information.

[0074] In one possible implementation, the type indicated by the type selection instruction is music. In S32, the terminal device can determine the music that matches the driving state based on the driving state information, or the terminal device can determine the frequency or volume that matches the driving state based on the driving state information, and play the music at the determined frequency or volume.

[0075] In one possible implementation, the type indicated by the type selection instruction is sound. In S32, the terminal device may determine a sound that matches the driving state based on the driving state information, or the terminal device may determine a frequency or volume that matches the driving state based on the driving state information, and play the sound at the determined frequency or volume.

[0076] about Figure 3 For more details about determining the target audio, please refer to the above description, which will not be repeated here.

[0077] As a variation, the control module may determine the type of the target audio according to the mode setting instruction.

[0078] Specifically, the mode setting instruction may be obtained from the user's control terminal or the vehicle system. For example, the user may set the selection mode through an application installed on the user terminal, thereby sending the type selection instruction to the audio playback system or the vehicle system. The type of the target audio may be: prompt voice, music, or sound waves.

[0079] In one case, the mode indicated by the mode setting instruction is the basic mode. In this case, the control module can determine the type of the target audio as a prompt voice. Further, the control module can determine the prompt voice matching the driving state as the target audio according to the driving state information. Further, the light control instruction generated by the control module in the basic mode is used to drive the vehicle lights to realize the lighting function.

[0080] In another case, the mode indicated by the mode setting instruction is a leisure mode. In this case, the control module can play music or broadcast. Among them, the audio signal of the music or broadcast can be obtained from the user's terminal device. Or, the audio signal of the music can be pre-stored in the storage module. Further, in the leisure mode and in the process of playing music or broadcasting, if the driving state determined based on the driving state information is a steering state other than straight driving, the audio to be played corresponding to the determined steering state can be used as the target audio, and the content of the target audio matches the determined steering state. If the steering state determined based on the driving state information is straight driving, the target audio matching the straight driving state can be determined. This is in consideration of the fact that the distance of the music or broadcast itself has a prompting effect, and for the speed state, acceleration state and deceleration state determined according to the driving state information, the corresponding target audio can be determined not based on the determined speed state, acceleration state and deceleration state. If in the leisure mode, if music or broadcasting is not played, the target audio can be determined by the scheme of the above-mentioned basic mode.

[0081] In another case, the mode indicated by the mode setting instruction is an off-road mode. In this case, the control module can play the sound. Among them, the audio signal of the music can be pre-stored in the storage module. Further, in the off-road mode and in the process of playing the sound, if the driving state determined based on the driving state information is a turning state other than straight driving, the audio to be played corresponding to the determined turning state can be used as the target audio, and the content of the target audio matches the determined turning state. If the turning state determined based on the driving state information is straight driving, the target audio matching the straight driving state may not be determined. This is in consideration of the fact that the distance of the sound itself has a prompting effect. For the speed state, acceleration state and deceleration state determined according to the driving state information, the corresponding target audio may not be determined based on the determined speed state, acceleration state and deceleration state.

[0082] It should be understood that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article indicates that the associated objects before and after are in an "or" relationship.

[0083] The "multiple" in the embodiments of the present application refers to two or more. The first, second, etc. descriptions in the embodiments of the present application are only used for illustration and distinction of the described objects, and have no order, nor do they represent a special limitation on the number of devices in the embodiments of the present application, and cannot constitute any limitation on the embodiments of the present application.

[0084] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application shall be subject to the scope defined by the claims.

Claims

1. An audio playback system for an electric bicycle, characterized in that: The system comprises: A communication module, configured to obtain driving status information of the electric bicycle, wherein the driving status information includes steering information, vehicle speed information, and acceleration information; A storage module, used for storing multiple audio files to be played; a control module, configured to read a target audio from the storage module according to the driving state information, wherein the target audio is selected from the plurality of audios to be played; The audio playing module is used to obtain the target audio from the control module and play the target audio.

2. The audio playback system for an electric bicycle according to claim 1, characterized in that: The target audio satisfies at least one of the following: The content of the target audio matches the driving state information; The frequency of the target audio matches the driving state information; The volume of the target audio matches the driving status information.

3. The audio playback system for an electric bicycle according to claim 1, characterized in that: The audio playback module includes: a power amplifier and a speaker. The power amplifier is used to amplify the target audio signal and send the amplified signal to the speaker.

4. The audio playback system for an electric bicycle according to claim 1, characterized in that: The control module is further configured to generate a light control signal according to the target audio, wherein the light control signal is configured to control the color and / or brightness of the vehicle light; The system further includes a light driving circuit configured to drive the vehicle light to emit light according to the light control signal.

5. The audio playback system for an electric bicycle according to claim 1, characterized in that: The communication module obtains the driving status information of the electric bicycle through the CAN bus and / or the SPI bus.

6. The audio playback system for an electric bicycle according to claim 1, characterized in that: The system further comprises: Power interface, used to connect to an external power supply; A step-down module, wherein the input end of the step-down module is connected to the power interface, and the output end of the step-down module is connected to the control module.

7. The audio playback system for an electric bicycle according to claim 1, characterized in that: The driving state information also includes: the distance between the electric bicycle and the obstacle.

8. The audio playback system for an electric bicycle according to claim 1, characterized in that: The types of audio to be played stored in the storage module include: prompt voice, music and sound waves; The communication module is further configured to obtain a type selection instruction from a user terminal, and the control module is configured to determine the type of the target audio according to the type selection instruction.

9. The audio playback system for an electric bicycle according to claim 1, characterized in that: The types of audio to be played stored in the storage module include: prompt voice, music and sound waves; The driving state information further includes: the flow of people around the electric bicycle, and the control module is used to determine the type of the target audio according to the flow of people.

10. An electric bicycle, characterized in that: An audio playback system for an electric bicycle comprising any one of claims 1 to 9.

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