An external voice broadcasting device and vehicle

Abstract

This application discloses an external voice broadcasting device and vehicle, belonging to the field of vehicle-mounted voice technology. The device includes at least a voice acquisition device, a vehicle control circuit, a power amplifier circuit, a voice playback device, a voice wake-up button, and button hardware circuitry. The button hardware circuitry is electrically connected to the vehicle control circuit. When the voice wake-up button is pressed for more than a preset time, it uploads a long-press signal to the vehicle control circuit. The vehicle control circuit is electrically connected to both the power amplifier circuit and each voice acquisition device. Upon receiving the long-press signal, it uses the voice acquisition device to acquire user voice information and then sends the user voice information to the power amplifier circuit. The voice playback device is electrically connected to the power amplifier circuit and installed externally in the vehicle to play the amplified user voice information. This application can at least enable in-vehicle personnel to speak to people outside the vehicle, improving the user experience.

Description

Technical Field

[0001] This utility model relates to the field of vehicle voice technology, and in particular to an external voice broadcasting device and vehicle. Background Technology

[0002] In automotive design, to protect user privacy and enhance driving comfort, vehicles are designed with good sound insulation, providing a quiet and private space for occupants. However, in actual use, users often encounter situations where they need to communicate with pedestrians or other vehicles outside the car, and in these situations, they typically use the horn to communicate.

[0003] However, using a horn to sound a single sound can only serve as a warning, and the content it conveys is very limited, making it difficult to express the user's current actual needs and failing to achieve richer and more effective communication between the user and pedestrians or other vehicles outside the vehicle. Utility Model Content

[0004] This utility model provides an external voice broadcasting device and vehicle to at least solve the problem that existing cars have limited capacity to express information when they need to communicate with pedestrians or other vehicles outside the vehicle by using a horn. This facilitates communication between people inside the vehicle and people outside the vehicle, improving the user experience.

[0005] In a first aspect, this utility model provides an external vehicle voice broadcasting device, which is at least adapted to a vehicle. The vehicle is provided with a voice wake-up button at least on the steering wheel and a button hardware circuit connected to the voice wake-up button. The external vehicle voice broadcasting device includes at least one voice acquisition device, a vehicle control circuit, a power amplifier circuit, at least one voice playback device, the voice wake-up button, and the button hardware circuit.

[0006] The button hardware circuit is electrically connected to the vehicle control circuit, and is used at least to upload the button long press signal to the vehicle control circuit when the voice wake-up button is pressed for more than a preset time.

[0007] The vehicle control circuit is electrically connected to the power amplifier circuit and each of the voice acquisition devices, and is at least used to acquire user voice information using at least one of the voice acquisition devices after receiving the long press signal of the button, and then send the user voice information to the power amplifier circuit.

[0008] The voice playback device is electrically connected to the power amplifier circuit and installed on the exterior of the vehicle, and is at least used to play the user's voice information amplified by the power amplifier circuit.

[0009] Optionally, the button hardware circuit is further configured to upload a button release signal to the vehicle control circuit when the voice wake-up button is released.

[0010] Optionally, the vehicle control circuit is further configured to stop acquiring the user's voice information using the voice acquisition device after receiving the button release signal.

[0011] Optionally, the button hardware circuit is further configured to upload a short-press signal to the vehicle control circuit when the time for which the voice wake-up button is pressed does not exceed the preset time.

[0012] Optionally, the preset time is 400ms.

[0013] Optionally, the power amplifier circuit is located inside the vehicle, electrically connected to the vehicle control circuit and at least one of the voice playback devices, and integrates an amplifier.

[0014] Optionally, the amplifier is electrically connected to the power amplifier circuit and is used at least to amplify the user's voice information.

[0015] Optionally, the voice playback device includes at least a plurality of external speakers, which are located at the top corners of the vehicle's exterior.

[0016] Optionally, the voice acquisition device includes at least a plurality of in-vehicle microphones, which are located inside the vehicle body.

[0017] Secondly, this embodiment also provides a vehicle, the vehicle including an external voice broadcasting device as described in any of the first aspects.

[0018] In summary, this invention reuses the car's voice wake-up button. While retaining the button's original function, a long press of the button causes the button's hardware circuit to upload a long-press signal to the vehicle's control circuit. This allows the control circuit to acquire the user's voice information using a voice acquisition device and then send it to the amplifier circuit. Finally, the amplifier circuit controls the voice playback device to play the amplified user's voice information, enabling the user inside the vehicle to communicate with people outside. Therefore, this invention reuses the car's voice wake-up button to address the limitation of horn use in existing vehicles when communication with pedestrians or other vehicles is required, facilitating communication between vehicle occupants and those outside and improving the user experience. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an external vehicle voice broadcasting device according to the present invention;

[0021] Figure 2 This is a schematic diagram of another vehicle-mounted voice broadcasting device according to the present invention.

[0022] Among them, 100 is the external voice broadcasting device; 110 is the voice wake-up button; 120 is the button hardware circuit; 130 is the vehicle control circuit; 140 is the voice acquisition device; 150 is the power amplifier circuit; 160 is the voice playback device; 201 is the power supply; 202 is the central control vehicle system; 203 is the body controller; and 204 is the vehicle bus. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the embodiments are only for illustrating the present invention and are not intended to limit the scope of protection of the present invention.

[0024] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0025] Figure 1 This embodiment of the present invention presents a structural schematic diagram of an external vehicle voice broadcasting device, as shown below. Figure 1As shown, the vehicle external voice broadcasting device 100 is adapted to at least a vehicle. The vehicle has at least a voice wake-up button 110 on the steering wheel and a button hardware circuit 120 connected to the voice wake-up button 110. The vehicle external voice broadcasting device 100 includes at least one voice acquisition device 140, a vehicle control circuit 130, a power amplifier circuit 150, at least one voice playback device 160, a voice wake-up button 110, and a button hardware circuit 120.

[0026] The button hardware circuit 120 is electrically connected to the vehicle control circuit 130 and is used at least to upload the button long press signal to the vehicle control circuit 130 when the voice wake-up button 110 is pressed for a period of time exceeding a preset time.

[0027] The vehicle control circuit 130 is electrically connected to the power amplifier circuit 150 and each voice acquisition device 140, respectively. It is used at least once a long press signal is received, to acquire user voice information using at least one voice acquisition device 160, and then send the user voice information to the power amplifier circuit 150.

[0028] The voice playback device 160 is electrically connected to the power amplifier circuit 150 and installed on the exterior of the vehicle, and is used at least to play user voice information amplified by the power amplifier circuit.

[0029] The voice wake-up button refers to a specific button on the car steering wheel, typically located on the right side of the steering wheel surface. Its function is to wake up the in-car voice assistant when pressed. The preset time refers to the time predetermined by the button's hardware circuitry during its design. The generation of the long-press signal can be achieved by the user pressing the voice wake-up button for a duration exceeding the preset time. User voice information refers to the voice information emitted by the user after the voice wake-up button is pressed for a long time. The button hardware circuitry refers to a circuit board capable of distinguishing between a long press and a short press operation on the voice wake-up button. This invention electrically connects the button hardware circuitry 120 to the vehicle control circuitry 130, allowing the button hardware circuitry 120 to send the corresponding long-press operation (button long-press signal) to the vehicle control circuitry 130. The vehicle control circuitry 130 then uses at least one voice acquisition device 160 to acquire the user's voice information and sends it to the power amplifier circuit 150, enabling the user's voice information to be played outside the vehicle, allowing the user inside the vehicle to speak to people outside. Understandably, in some scenarios, drivers may want pedestrians to move obstacles in front of their vehicles, but the horn may not effectively convey the driver's intention. In such cases, the driver can press and hold the voice activation button and say, "Please help move the obstacle in front of me" (i.e., the user's voice message). The voice playback device then plays this message to the pedestrian, who can then clearly understand the driver's intention.

[0030] In one specific embodiment, the external voice broadcasting device 100 is installed on a car, which can be an electric car, a gasoline car, or a hybrid car. It includes components of a typical car, such as the car body, windows, voice wake-up button, display screen, horn, microphone, power supply, etc.

[0031] Figure 2 This is a schematic diagram of another vehicle-mounted voice broadcasting device according to the present invention. See also: Figure 2The positive terminal of power supply 201 is connected to the first terminal of the central control unit 202, and the negative terminal of power supply 201 is connected to the second terminal of the central control unit 202. The third terminal of the central control unit 202 is connected to the vehicle bus, and the fourth terminal of the central control unit 202 is connected to the voice acquisition device 140. The first terminal of the central control unit 202 is connected to the first terminal of the body controller 203, and the second terminal of the central control unit 202 is connected to the second terminal of the body controller 203. The third terminal of the body controller 203 is connected to the vehicle bus 204, and the fourth terminal of the body controller 203 is connected to... The first terminal of the button hardware circuit 120 is connected to the second terminal of the body controller 203. The first terminal of the body controller 203 is connected to the first terminal of the power amplifier circuit 120, and the second terminal of the body controller 203 is connected to the second terminal of the power amplifier circuit 150. The third terminal of the power amplifier circuit 150 is connected to the third terminal of the vehicle bus 204. The fourth terminal of the power amplifier circuit 150 is connected to the first terminal of the voice playback device 160, and the fifth terminal of the power amplifier circuit 150 is connected to the second terminal of the voice playback device 160.

[0032] It is understood that the vehicle control circuit 130 provided by this utility model can be composed of a central control vehicle system 201 and a body controller 203.

[0033] In another specific implementation, when a driver notices a pedestrian walking slowly ahead and requests the pedestrian to move to the right, the driver can use the technical solution described in this invention to press and hold the voice wake-up button. This will cause the button's hardware circuit to transmit the long-press signal to the vehicle's control circuit. Further, after receiving the long-press signal, the vehicle's control circuit uses a voice acquisition device to obtain the user's voice information. The driver can then say, "Please move to the right." Further, the vehicle's control circuit sends the user's voice information to the power amplifier circuit. Further, the voice playback device plays the amplified user's voice information. Further, the user will hear the voice message "Please move to the right" played by the voice playback device and will then consciously move to the right.

[0034] Understandably, this invention reuses the car's voice wake-up button. While retaining the button's original function, a long press of the voice wake-up button causes the button's hardware circuit to upload a long-press signal to the vehicle's control circuit. This allows the vehicle's control circuit to acquire the user's voice information using a voice acquisition device and then send it to the power amplifier circuit. Finally, the power amplifier circuit controls the voice playback device to play the amplified user's voice information, enabling the user inside the car to communicate with people outside. In summary, this invention reuses the car's voice wake-up button to at least address the problem of limited communication capabilities when using the horn in existing vehicles to communicate with pedestrians or other vehicles, thus facilitating communication between the vehicle's occupants and those outside and improving the user experience.

[0035] Based on the above embodiments or implementation methods, this embodiment adds to and refines the aforementioned vehicle-mounted voice broadcasting device 100, but does not limit the scope of this utility model. See also... Figure 1 In one specific implementation, the button hardware circuit 120 is also used to upload a button release signal to the vehicle control circuit 130 when the voice wake-up button 110 is released.

[0036] The action of generating the button release signal can be that after the user presses the voice wake-up button, they release the pressed finger to allow the voice wake-up button to return to its initial state.

[0037] In another specific implementation, the vehicle control circuit 130 is optionally further configured to stop acquiring user voice information using the voice acquisition device 140 after receiving a button release signal.

[0038] According to the above technical solution, after the user has finished expressing all the user's voice information, the user can lift the finger that pressed the voice wake-up button to release the voice wake-up button. This causes the button hardware circuit to send a button release signal to the vehicle control circuit, so that the vehicle control circuit controls the voice acquisition device to stop collecting the user's voice information.

[0039] In another specific implementation, optionally, the button hardware circuit 120 is also used to upload a short button press signal to the vehicle control circuit 130 when the voice wake-up button 110 is pressed for no more than a preset time.

[0040] In yet another specific implementation, the preset time may optionally be 400ms.

[0041] It is understandable that the short press signal is generated when a user presses the voice wake-up button, and the duration of pressing the voice wake-up button does not exceed 400ms. In the button hardware circuit, the distinction between short press and long press signals can be achieved by pressing the long press button hardware circuit, which sends a high-level signal to the vehicle control circuit via a resistor. Upon receiving the high-level signal, the vehicle control circuit starts timing the duration of the pressed state. If the duration of the pressed state is less than 400ms, the operation is determined to be a short press, and the corresponding button function is implemented. If the duration of the pressed state is not less than 400ms, the operation is determined to be a long press. Similarly, the distinction between short-press and long-press signals can also be achieved using a 555 timer. By integrating this timer into the button hardware circuit and setting it to monostable mode, when the voice wake-up button is pressed, the 555 timer will start a timing cycle. If the voice wake-up button is released before the end of the timing cycle, the output of the 555 timer will remain low (corresponding to a short-press signal). If the voice wake-up button is pressed for longer than the timing cycle, the timer output will switch to a high level (corresponding to a long-press signal). The high and low levels control the on / off state of a switch in the circuit.

[0042] In another specific implementation, the power amplifier circuit is optionally located inside the vehicle, electrically connected to the vehicle control circuit and at least one voice playback device, and integrates an amplifier.

[0043] In another specific implementation, the amplifier may optionally be electrically connected to the power amplifier circuit, at least for amplifying the user's voice information.

[0044] Amplifying user voice information can refer to increasing the volume of the user's voice information. This means that the amplifier is placed inside the power amplifier device to amplify the volume of the user's voice information after the power amplifier device receives it.

[0045] In another specific embodiment, optionally, the voice playback device 160 includes at least a plurality of external speakers, which are located at the top corners of the vehicle's exterior.

[0046] The voice playback device can consist of four external speakers, each electrically connected to an amplifier circuit and positioned at one of the four corners of the vehicle. This configuration in this embodiment allows for simultaneous coverage of pedestrians around the vehicle while the user's voice information is played through the external speakers.

[0047] In another specific embodiment, optionally, the voice acquisition device 140 includes at least a plurality of in-vehicle microphones, which are located inside the vehicle body.

[0048] The voice acquisition device can consist of four in-vehicle microphones, each of which is electrically connected to the vehicle's control circuit and is evenly distributed in the front and rear seats of the vehicle to ensure that the voice information of users in any position in the vehicle can be effectively collected.

[0049] For example, the actual working principle of the vehicle external voice broadcasting device 110 provided in this embodiment can be specifically described as follows:

[0050] When a driver starts driving and notices an obstacle in front of the vehicle, they may want a pedestrian to move it. However, the horn may not effectively convey the driver's request. This invention addresses this issue by allowing the driver to press and hold the voice wake-up button for over 400ms, enabling the button's hardware circuit to transmit a long-press signal to the vehicle's control circuit. Upon receiving this signal, the control circuit uses the in-vehicle microphone (voice acquisition device) to capture the user's voice information. The driver can then say, "Please move the obstacle in front of the vehicle, thank you." The control circuit then sends the voice information to the amplifier circuit. The amplified voice information is amplified by the amplifier circuit. Finally, the amplifier circuit controls the external speaker (voice playback device) to play the amplified voice information.

[0051] Understandably, this invention reuses the car's voice wake-up button. While retaining the button's original function, a long press of the voice wake-up button causes the button's hardware circuit to upload a long-press signal to the vehicle's control circuit. This allows the vehicle's control circuit to acquire the user's voice information using a voice acquisition device and then send it to the power amplifier circuit. Finally, the power amplifier circuit controls the voice playback device to play the amplified user's voice information, enabling the user inside the car to communicate with people outside. In summary, this invention reuses the car's voice wake-up button to at least address the problem of limited communication capabilities when using the horn in existing vehicles to communicate with pedestrians or other vehicles, thus facilitating communication between the vehicle's occupants and those outside and improving the user experience.

[0052] This utility model embodiment also provides a vehicle, including the external voice broadcasting device of any of the above embodiments. The external voice broadcasting device includes at least one voice acquisition device, a vehicle control circuit, a power amplifier circuit, at least one voice playback device, a voice wake-up button, and a button hardware circuit. The button hardware circuit is electrically connected to the vehicle control circuit. When the voice wake-up button is pressed for more than a preset time, a long-press signal is uploaded to the vehicle control circuit. The vehicle control circuit is electrically connected to the power amplifier circuit and each voice acquisition device. After receiving the long-press signal, it uses at least one voice acquisition device to acquire user voice information and then sends the user voice information to the power amplifier circuit. The voice playback device is electrically connected to the power amplifier circuit and installed on the exterior of the vehicle to play the user voice information amplified by the power amplifier circuit.

[0053] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. An external voice broadcasting device for vehicles, characterized in that, The vehicle external voice broadcasting device is at least adapted to a vehicle, and the vehicle is provided with a voice wake-up button at least on the steering wheel, as well as a button hardware circuit connected to the voice wake-up button. The vehicle external voice broadcasting device includes at least one voice acquisition device, a vehicle control circuit, a power amplifier circuit, at least one voice playback device, the voice wake-up button, and the button hardware circuit. The button hardware circuit is electrically connected to the vehicle control circuit, and is used at least to upload the button long press signal to the vehicle control circuit when the voice wake-up button is pressed for more than a preset time. The vehicle control circuit is electrically connected to the power amplifier circuit and each of the voice acquisition devices, and is at least used to acquire user voice information using at least one of the voice acquisition devices after receiving the long press signal of the button, and then send the user voice information to the power amplifier circuit. The voice playback device is electrically connected to the power amplifier circuit and installed on the exterior of the vehicle, and is at least used to play the user's voice information amplified by the power amplifier circuit.

2. The vehicle external voice broadcasting device according to claim 1, characterized in that, The button hardware circuit is also used to upload a button release signal to the vehicle control circuit when the voice wake-up button is released.

3. The vehicle exterior voice broadcasting device according to claim 2, characterized in that, The vehicle control circuit is also configured to stop acquiring the user's voice information using the voice acquisition device after receiving the button release signal.

4. The vehicle exterior voice broadcasting device according to claim 1, characterized in that, The button hardware circuit is also used to upload a short-press signal to the vehicle control circuit when the time the voice wake-up button is pressed does not exceed the preset time.

5. The vehicle exterior voice broadcasting device according to claim 4, characterized in that, The preset time is 400ms.

6. The vehicle external voice broadcasting device according to claim 1, characterized in that, The power amplifier circuit is located inside the vehicle, electrically connected to the vehicle control circuit and at least one of the voice playback devices, and integrates an amplifier.

7. The vehicle external voice broadcasting device according to claim 6, wherein the amplifier is electrically connected to the power amplifier circuit and is used at least to amplify the user's voice information.

8. The vehicle external voice broadcasting device according to claim 1, characterized in that, The voice playback device includes at least a plurality of external speakers, which are located at the top corners of the vehicle's exterior.

9. The vehicle external voice broadcasting device according to claim 1, characterized in that, The voice acquisition device includes at least a number of in-vehicle microphones, which are located inside the vehicle body.

10. A vehicle, characterized in that, The vehicle includes an external voice broadcasting device as described in any one of claims 1-9.

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