Bone conduction riding helmet

Abstract

The utility model discloses a bone conduction riding helmet which comprises a helmet body, a binding head band arranged in the helmet body and a plurality of ventilation holes formed in the top of the helmet body, the binding head band is arranged at the rear end of the helmet body, a bone conduction microphone is arranged in the middle section of the binding head band, and the ventilation holes are formed in the top of the helmet body. A bone conduction microphone is arranged in the helmet body, a box body is arranged on the left side or the right side of the helmet body, a control panel connected with the bone conduction microphone and a loudspeaker arranged in the box body and connected to the control panel are arranged in the box body, and a sound outlet hole capable of enabling the interior of the helmet body to be communicated with the interior of the box body is formed in the helmet body. Therefore, the bone conduction microphone can be close to the rear side of the skull of the user, namely the position of the back side of the head through the binding head band, so that the interference of wind pressure blown from the front face to the bone conduction microphone can be avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of helmets, and more particularly to a bone conduction cycling helmet. Background Technology

[0002] Currently, the mainstream microphones used in bicycles, motorcycles, racing cars, firefighters, and military / police helmets are mostly air conduction microphones, such as electret microphones and dynamic microphones. A significant drawback of these microphones is that during riding, high wind pressure can cause them to overload and saturate, leading to microphone malfunction and ineffective voice transmission. To address this, some manufacturers have switched to bone conduction microphones. However, bone conduction microphones are typically mounted on the top of the head, and this approach is limited to sealed helmets. It doesn't work with perforated lightweight riding helmets because the ventilation holes allow wind pressure to directly interfere with the bone conduction microphone during high-speed riding, creating wind pressure vibration noise. Similarly, increased wind pressure can also cause the bone conduction microphone to saturate and stop working, again resulting in ineffective voice transmission. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a cycling helmet suitable for lightweight cycling helmets that can prevent wind noise from interfering with bone conduction microphones.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0005] A bone conduction cycling helmet includes a helmet body, a head strap disposed within the helmet body, and a plurality of ventilation holes disposed on the top of the helmet body. The head strap is disposed at the rear end of the helmet body, and a bone conduction microphone is disposed in the middle section of the head strap. A housing is disposed on the left or right side of the helmet body. The housing contains a control board connected to the bone conduction microphone and a speaker disposed in the housing and connected to the control board. The helmet body has a sound outlet that allows communication between the interior of the helmet body and the interior of the housing.

[0006] In a preferred embodiment of this utility model, a fixing member is provided on the front side of the headband, and the input end of the bone conduction microphone is disposed within the fixing member.

[0007] In a preferred embodiment of this utility model, the rear side of the headband is provided with an adjusting member for adjusting its tightness.

[0008] In a preferred embodiment of this utility model, a charging compartment for supplying power to the control board is provided on the helmet body and on one side corresponding to the box body. The helmet body is provided with a wire for connecting the charging compartment and the box body, and the box body is provided with a charging port for charging the charging compartment.

[0009] In a preferred embodiment of this utility model, the box body is provided with an omnidirectional microphone for receiving user voice information, and the box body is provided with a switch button for switching between the omnidirectional microphone and the bone conduction microphone to receive user voice information.

[0010] In a preferred embodiment of this utility model, the box is provided with a listening microphone for receiving external sound information.

[0011] In a preferred embodiment of this utility model, the housing includes a power button for turning the device on or off, and a volume control button for adjusting the volume.

[0012] In a preferred embodiment of this utility model, the control board includes an AI voice intelligent chip for separating external sound information and user voice information and outputting them to the terminal device, a processor for processing logical control relationships, and a power amplifier for amplifying the received sound information.

[0013] The beneficial effects of this utility model are as follows: The cycling helmet includes a helmet body, a head strap, and ventilation holes. The head strap is located at the rear end of the helmet body. A bone conduction microphone is installed on the head strap. A housing is installed on the helmet body. A control panel and a speaker are installed inside the housing. A sound outlet is provided on the helmet body, which allows the interior of the helmet body to communicate with the interior of the housing. In this way, the head strap allows the bone conduction microphone to be close to the back of the user's skull, that is, at the back of the head, thereby avoiding interference from the wind pressure blowing from the front of the face. Attached Figure Description

[0014] Figure 1 This is a front view diagram of the present invention;

[0015] Figure 2 This is a rear view of the present invention;

[0016] Figure 3 This is a schematic diagram of the internal structural frame of the box in this utility model. Detailed Implementation

[0017] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0018] Reference Figures 1 to 3 A bone conduction cycling helmet includes a helmet body 1, an elastic headband 2 disposed within the helmet body 1, and several ventilation holes 11 on the top of the helmet body 1. The headband 2 is located at the rear end of the helmet body 1, and the design of the ventilation holes 11 helps to prevent the head from becoming stuffy during long rides. A bone conduction microphone 3 is located in the middle section of the headband 2. A housing 4 is located on the left or right side of the helmet body 1. The housing 4 contains a control board 5 connected to the bone conduction microphone 3, and a speaker 6 disposed within the housing 4 and connected to the control board 5. The helmet body 1 has a sound outlet 12 that allows communication between the interior of the helmet body 1 and the interior of the housing 4. The speaker 6 is not limited to a helmet-embedded type, but can also be an in-ear type, an over-ear type, or a bone conduction vibration speaker 6, etc. By using the headband 2, the bone conduction microphone 3 can be placed close to the back of the user's skull, that is, at the back of the head, thus avoiding interference from the wind pressure blowing from the front of the face.

[0019] In this solution, a fixing member 21 is provided on the front side of the head strap 2, and the input end of the bone conduction microphone 3 is located in the fixing member 21. The fixing member 21 is a silicone fixing block that is bonded to the head strap 2 and has an opening. The sensor in the input end of the bone conduction microphone 3 is located at the opening, so as to be close to the user's skull to receive the user's voice information.

[0020] In this solution, the rear side of the restraint headband 2 is provided with an adjustment component 22 for adjusting its tightness. The adjustment component 22 can be a ratchet-type adjuster, which includes a knob, a gear set and a limit buckle, so as to adapt to users with different head circumferences.

[0021] In this design, the helmet body 1, on one side corresponding to the housing 4, has a charging compartment 7 for supplying power to the control board 5. The helmet body 1 has a connecting cable 8 for connecting the charging compartment 7 and the housing 4. The housing 4 has a charging port 41 for charging the charging compartment 7. The control board 5 also has a charging chip. The power cable is plugged into the charging port 41, and the charging chip U1 charges the battery V-BAT. The battery V-BAT is then regulated by an LDO voltage regulator to supply power to the various unit chips. Alternatively, the charging compartment 7 can also have a charging port 41 for direct charging.

[0022] In this solution, the housing 4 is equipped with an omnidirectional microphone 9 for receiving user voice information, and the housing 4 is equipped with a switch button 42 for switching between the omnidirectional microphone 9 and the bone conduction microphone 3 to receive user voice information. This forms a dual-microphone switching system that can intelligently adapt to the cycling scenario. When cycling on urban roads (cycling speed ≤50km / h), the omnidirectional microphone 9 is used, and when cycling at high speeds or in strong winds, it switches to the bone conduction microphone 3, improving the voice recognition accuracy to over 95% and meeting the communication needs of different cycling scenarios.

[0023] In this solution, the housing 4 is equipped with a listening microphone 10 for receiving external sound information. The listening microphone 10 can pick up key environmental sounds such as horns and brakes of vehicles behind in real time, enabling the helmet to have intelligent environmental sound perception capabilities. Compared with traditional helmets, it can effectively remind riders to pay attention to the surrounding environment and reduce the risk of traffic accidents.

[0024] In this solution, the housing 4 includes a power button 43 for turning the device on or off, and a volume control button 44 for adjusting the volume.

[0025] In this solution, the control board 5 includes an AI voice intelligent chip 51 for separating external sound information and user voice information and outputting them to the terminal device, a processor 52 for processing logical control relationships, and a power amplifier 53 for amplifying the received sound information and driving the speaker 6 to output. Specifically, the AI ​​voice intelligent chip 51 separates ambient noise and user voice using algorithms, attenuates and filters out the noise signal, and outputs the remaining voice signal to the terminal device, such as a mobile phone or walkie-talkie MIC input interface. The processor 52 is used to handle functions such as power switch control, switching between the omnidirectional microphone 9 and the bone conduction microphone 3, processing external audio device SPK sound effects, and adjusting the volume. The power amplifier 53 has the following functions: first, it amplifies the voice sent out by the user after processing by the AI ​​voice intelligent chip 51 and drives the speaker 6 to output, so that the user can hear their own voice; second, it amplifies the voice signal received from the mobile phone or walkie-talkie and drives the speaker 6 to output.

[0026] In summary, the working principle of the cycling helmet is as follows:

[0027] S1: If connecting to a mobile phone or walkie-talkie via a wired connection, plug the audio cable with MIC and SPK into the charging port 41 (TYPE-C interface) on box 4 to connect to the mobile phone or walkie-talkie. If connecting via Bluetooth, it will enter standby mode after successful pairing.

[0028] S2: Press the power button 43 on the box 4 to start working;

[0029] S3: By default, the omnidirectional microphone 9 is selected for operation upon power-on. When cycling speed is less than 50 km / h, the omnidirectional microphone 9 is generally used for transmission. When the speed is greater than 50 km / h, press and hold the switch button 42 to select the bone conduction microphone 3. Speak to the microphone and then listen to your own voice through the speaker 6 to judge the clarity of your voice. If the sound is not loud or clear enough, adjust the tightness of the headband 2 using the adjustment piece 22 to adjust the clarity of your voice transmission.

[0030] S4: Ambient Sound Detection: Since the speaker 6 is not limited to an open-back speaker 6, it may also be a binaural speaker 6 for hearing sound. If the in-ear type blocks the ears, it will reduce or prevent the hearing of external ambient sounds during cycling, such as car horns 6 or shouts from other people outside. To enable hearing external sounds, a voice enhancement microphone 10 is added. After receiving external sounds, the microphone 10 filters and attenuates the noise, then outputs a clear signal. This signal is then processed by the AI ​​voice chip 51, which amplifies the processed sound before outputting it through the speaker 6, thus achieving the effect of detecting ambient sound signals.

[0031] S5: Speaker 6 for listening: Use speaker 6 to hear sounds from a mobile phone or walkie-talkie, or to listen to your own voice. To adjust the volume, press volume control button 44.

[0032] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A bone conduction cycling helmet, comprising a helmet body (1), a head strap (2) disposed within the helmet body (1), and a plurality of ventilation holes (11) disposed on the top of the helmet body (1), characterized in that, The head strap (2) is located on the rear end of the helmet body (1). A bone conduction microphone (3) is located in the middle section of the head strap (2). A box (4) is located on the left or right side of the helmet body (1). A control board (5) connected to the bone conduction microphone (3) and a speaker (6) located in the box (4) and connected to the control board (5) are provided inside the box (4). A sound outlet (12) is provided on the helmet body (1) to allow the interior of the helmet body (1) to communicate with the interior of the box (4).

2. A bone conduction cycling helmet according to claim 1, characterized in that, The headband (2) is provided with a fastener (21) on the front side, and the input end of the bone conduction microphone (3) is located inside the fastener (21).

3. A bone conduction cycling helmet according to claim 2, characterized in that, The headband (2) is provided with an adjustment element (22) on the rear side for adjusting its tightness.

4. A bone conduction cycling helmet according to claim 1, characterized in that, The helmet body (1) has a charging compartment (7) on one side corresponding to the box (4) for supplying power to the control board (5). The helmet body (1) has a wire (8) for connecting the charging compartment (7) and the box (4). The box (4) has a charging port (41) for charging the charging compartment (7).

5. A bone conduction cycling helmet according to any one of claims 1 to 4, characterized in that, The box (4) is equipped with an omnidirectional microphone (9) for receiving user voice information, and the box (4) is equipped with a switch button (42) for switching between the omnidirectional microphone (9) and the bone conduction microphone (3) to receive user voice information.

6. A bone conduction cycling helmet according to claim 5, characterized in that, The box (4) is equipped with a listening microphone (10) for receiving external sound information.

7. A bone conduction cycling helmet according to claim 6, characterized in that, The housing (4) includes a power button (43) for turning the device on or off, and a volume control button (44) for adjusting the volume.

8. A bone conduction cycling helmet according to claim 7, characterized in that, The control board (5) includes an AI voice intelligent chip (51) for separating external sound information and user voice information and outputting them to the terminal device, a processor (52) for processing logical control relationships, and a power amplifier (53) for amplifying the received sound information.

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