6 results about "Warning tone" patented technology

We provide the system. [Solution] A means of acquiring real-time video from a video acquisition device, The system includes a machine learning module for analyzing the acquired video, and the module has means for detecting abnormal behavior patterns. A means for generating a command to emit a warning sound based on the detection of the abnormal behavior, means for outputting a sound based on the aforementioned warning sound command, Means for transmitting the detected information to an information terminal, The aforementioned information terminal includes means for viewing live video and remotely controlling audio warnings, A system that includes this.

A driver assistance ECU initiates monitoring to determine whether a driver has performed a preparatory action, based on a motion sensor output signal, in response to the appearance of an object with a time to collision (TTC) less than a predetermined starting value. If the preparatory action is successfully detected within a specified time period (from when the TTC falls below the starting value to when the TTC reaches the starting value), the driver assistance ECU sets the warning tone output time to a later time than the default. If the preparatory action is not successfully detected within the specified time period, the driver assistance ECU sets the warning tone output time to the default time or to a time earlier than the default.

A context-aware voice guidance method is provided that interacts with other voice services of a user device. The voice guidance does not provide audible guidance while the user is making a verbal request to any of the voice-activated services. Instead, the voice guidance transcribes its output on the screen while the verbal requests from the user are received. In some embodiments, the voice guidance only provides a short warning sound to get the user's attention while the user is speaking on a phone call or another voice-activated service is providing audible response to the user's inquires. The voice guidance in some embodiments distinguishes between music that can be ducked and spoken words, for example from an audiobook, that the user wants to pause instead of being skipped. The voice guidance ducks music but pauses spoken words of an audio book in order to provide voice guidance to the user.

The invention relates to a low-speed warning tone generation method and device of an electric vehicle, the vehicle and a storage medium, and the method comprises the steps that the sound style of the low-speed warning tone of the electric vehicle is determined; the whole vehicle frequency response of the electric vehicle and the pedestrian warning indicator frequency response are tested and analyzed, and the main frequency band of the low-speed warning tone is determined; on the basis of the main frequency band, respectively recording in-vehicle noise of the electric vehicle in a low-speed pedestrian warning tone road test and a low-speed pedestrian warning tone-free road test under the condition that the electric vehicle runs at a preset low speed to obtain a frequency range and noise masking data of the in-vehicle road noise, and outputting the in-vehicle road noise after the frequency range and the noise masking data meet preset conditions. And generating a low-speed prompt tone. Therefore, the problems that in the related technology, warning tone generated by an external loudspeaker is transmitted into a cabin through structural sound transmission and air sound transmission ways, so that the sound quality in a vehicle is poor, and the sound pressure level in the vehicle is increased once a self-adaptive control system is used for improving the warning loudness to compensate the external environment noise, and the sound quality is poor are solved. The driving comfort is influenced, and the like.

The invention discloses a low-speed warning tone control method and device, a vehicle, a storage medium and a program product, and relates to the technical field of vehicle low-speed warning tone control, and the method comprises the steps: determining a target sound source from a preset sound source database based on a high-frequency noise point of the vehicle under the condition that the vehicle is in a low-speed operation state; wherein the high-frequency noise point is determined based on noise data collected when the vehicle is in a low-speed running state and the pedestrian warning sound system is in a closed state; and controlling the pedestrian warning sound system to play the target sound source. The low-speed warning tone recognition degree can be improved, and the low-speed warning tone of the electric vehicle is prevented from being covered by noise of the electric vehicle.

The invention relates to the technical field of vehicle active safety, in particular to a vehicle warning tone generation method and device, a vehicle and a storage medium, and the method comprises the steps that driving noise data of the vehicle, a sound transfer function and a frequency response curve of a loudspeaker are acquired, the sound transfer function is a transfer function that the prompt tone is transferred from a loudspeaker outside the vehicle to the interior of the vehicle; generating a basic harmonic sound source of the vehicle warning tone according to the driving noise data, the sound transfer function and the frequency response curve, and selecting the characteristic frequency of the vehicle warning tone according to the loudness curve and the sound insulation curve of the vehicle; and mixing the basic sound source of the vehicle warning tone with the characteristic frequency to obtain a final sound source of the vehicle warning tone, and playing the final sound source through a loudspeaker outside the vehicle when the vehicle warning tone is triggered. Therefore, the problems that when the low-speed warning tone is designed in the related technology, the warning performance of the warning tone outside the automobile is insufficient or perception is weak, and noise in the automobile interferes with a driver or causes dysphoria are solved.