30 results about "Warning tone" patented technology

The embodiment of the invention provides a vehicle prompt tone playing method and system and a vehicle, and the method comprises the steps: obtaining an initial prompt tone and a prompt scene corresponding to the initial prompt tone, and determining a first audio feature and a second audio feature according to the collected first physiological data and prompt scene of a driver in the vehicle driving process; and adjusting the initial prompt tone according to the first audio feature and the second audio feature to obtain and play a target prompt tone. The first audio feature is determined by acquiring the first physiological data of the driver in the vehicle driving process, the prompt tone can be dynamically adjusted based on the state of the driver, and the second audio feature is determined based on the first physiological data and the prompt scene to establish a feature constraint mechanism for the prompt tone. Therefore, the prompt tone better conforms to the driving state of the driver, and meanwhile, the prompt effect of the prompt tone on the driver is ensured.

An example provides call processing by receiving a call invite message associated with a call intended for a call device, identifying one or more audio portions of the call, creating one or more audio packets to include a warning audio message, and forwarding the created one or more audio packets to the intended call device.

The invention relates to a low-speed warning tone prompting method, device and equipment and a vehicle, and the method comprises the steps: controlling a target vehicle to play a low-speed warning tone when the real-time vehicle speed of the target vehicle is in a first interval; when the real-time vehicle speed of the target vehicle is located in a second interval, whether a low-speed warning tone is played or not is determined according to the target pedestrian number and the target environment noise intensity, and when it is determined that the low-speed warning tone is played, the target vehicle is controlled to play the low-speed warning tone, and the minimum value of the second interval is larger than the maximum value of the first interval. When the low-speed prompt tone is prompted, different strategies are adopted for different vehicle speed intervals, and when the vehicle speed is in the low-middle gear, whether the low-speed prompt tone is prompted or not is determined according to the number of pedestrians and the environmental noise, so that the effect of improving the prompt accuracy of the low-speed prompt tone is achieved. Therefore, the problem of inaccurate prompt of the low-speed prompt tone is solved.

The invention provides a driving warning tone adjusting method, device, system and equipment and a vehicle, and the driving warning tone adjusting method comprises the steps: obtaining the position information of a target object around the vehicle, and obtaining a to-be-output warning audio of the vehicle; determining a specific frequency band corresponding to the position information from a preset sound field distribution characteristic table; and performing amplitude gain on the audio signal in the specific frequency band in the prompt audio to obtain an adjusted prompt audio. When the vehicle outputs the driving prompt tone, the effect of reminding the target object outside the vehicle is enhanced, meanwhile, the minimum noise interference to a driver and passengers inside the vehicle is kept, and the warning requirement outside the vehicle and the quiet requirement inside the vehicle can be both considered.

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.

To provide a warning sound control device that facilitates recognition of the distance to approaching objects.SOLUTION: A warning sound control device (10) detects an object (30) approaching a moving body (1), determines the direction in which a sound image of the warning sound is localized based on the direction of the object (30) with respect to the moving body (1), and determines the trajectory of the sound image of the warning sound based on the distance from the moving body (1) to the object (30). The warning sound control device (10) then changes the trajectory of the sound image of the warning sound according to the distance from the moving body (1) to the object (30), while making the direction in which the sound image of the warning sound is localized follow the direction of the object (30) relative to the moving body (1).SELECTED DRAWING: Figure 6

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 an acoustic vehicle warning system with a microphone for detecting warning sounds in the environment of a vehicle and / or faults of components of the vehicle, for generating sounds (A) that can be heard by a person located in the environment of the vehicle (1), the vehicle warning system comprising at least one loudspeaker (20) for outputting the sounds (A). The vehicle warning system further comprises:-at least one microphone (21, 21 ') for detecting ambient noise in the environment of the vehicle (1), and-an electronic evaluation unit (31) coupled to the at least one microphone (21, 21'), and at least one microphone (21, 21 ') configured to identify a) at least one warning sound and / or b) a fault of one or more components of the vehicle (1) in the detected ambient noise based on the received signal (sE) generated by the at least one microphone (21, 21'), and to generate an event signal (sC) in response to identifying the at least one warning sound and / or fault.

The present application provides a warning sound control method, device, equipment and storage medium, which are applied to an audio signal processor configured in a system chip of a vehicle. The method includes: receiving the current gear position and vehicle speed monitored by the system chip; reading a preset audio library according to the gear position, obtaining a target audio file and caching it in a preset buffer, wherein there is a mapping relationship between the gear position and the sound source mode, and the preset buffer is arranged in the audio signal processor; matching the tuning parameters in the target audio file according to the vehicle speed to determine the target tuning parameters, the target audio file includes a target sound source and different tuning parameters, and there is a mapping relationship between the vehicle speed and the tuning parameters; after performing audio processing on the target sound source based on the target tuning parameters, sending it to a speaker for playback to achieve warning sound control. In this way, not only the dynamic control of the vehicle warning sound is realized, which can adapt to different driving scenarios, but also the resource occupation of the system chip is reduced, and the hardware design is simplified.

Portable two-way radio (100), comprising: a transceiver (208) configured to process an audio signal representing a warning tone; a processor (204) coupled to the transceiver (208), the processor (204) configured to: Determining (405) whether the transceiver (208) is in a transmit state; and Determining (410) whether an audio volume level setting exceeds a threshold associated with an intensity of the alert tone; a current limit trigger circuit (214, 314) coupled to the processor (204); and a warning tone current limit controller (218, 318), wherein the current limit trigger circuit (214, 314) is configured to activate the warning tone current limit controller (218, 318) in response to determining (405) that the transceiver (208) is in the transmit state and determining (410) that the audio volume level setting exceeds the threshold associated with the intensity of the warning tone, the warning tone current limit controller (218, 318) comprising: a voltage scaling controller (368) configured to generate a reduced audio signal by adjusting a peak-to-peak amplitude of the audio signal representing the warning tone in response to activation by the current limiting trigger circuit (214, 314); and a warning tone amplitude modulator (372) configured to generate an adjusted audio signal by limiting the maximum amplitude of the reduced audio signal in response to activation by the current limiting trigger circuit (214, 314).

A pedestrian warning system adjusts the warning tones emitted by a vehicle according to the acoustic environment surrounding the vehicle. Echoes of the warning tone in an enclosed space, such as a parking garage, can be bothersome to pedestrians and / or vehicle occupants. A sensor suite, including radar, cameras, and / or a GPS position sensor, detects enclosed spaces where reflections result in greater apparent loudness. The emitted loudness of the warning tones is then reduced, with the reduction potentially based on the size of the enclosed space.

The invention belongs to the technical field of seats, and particularly relates to a built-in disassembly and assembly structure and a detachable seat. The built-in disassembly and assembly structure comprises a first assembly part and a second assembly part, and further comprises a first warning tone triggering device. The triggering device comprises a first sound production surface, a first impact surface and an energy storage part; the first impact surface is located on the impact piece, and the impact stroke of the impact piece is at least partially located on the motion trail of the inserting part; the first sound production surface is located on the insertion part, and the insertion part is provided with an impact groove for accommodating the impact stroke; in the installation process, only when the position of the impact groove is matched with the impact stroke, the first impact surface can strike the first sound production surface and give out a first prompt tone to prompt that the installation is in place. Under the condition that a user cannot visually observe installation, the installation state of the seat can be prompted to the user through the sound triggering device, and meanwhile the seat has the advantages of being easy and convenient to operate and rapid in installation.

The present invention relates to the technical field of production line guidance systems, and more specifically, to an audio-visual guidance system and method for a manual feeding production line. An audio-visual guidance method for a manual feeding production line, characterized in that it comprises the following steps: S1. Building a guidance system on the feeding production line, with each workstation corresponding to a stacking rack and a touch screen, and installing a number of warning sound speakers around the feeding production line; S2. Using the guidance system to set the maximum number of workpieces a and the number of workpieces B required for a single cycle, and setting the production line cycle time Tc , set the workstation operation time To ; S3. Use the guidance system to calculate and set the display prompt threshold time Tw and Alarm Threshold Time T A Compared with the prior art, the present invention can guide, prompt and warn operators of material loading work through various means such as sound, picture and operation restriction, thus reducing loading jams and line stoppages caused by problems in the sequence of manual operation processes and ensuring the production line operation rate.

To provide a cargo handling vehicle capable of changing the volume of warning voice data depending on the content of a dangerous act. [Solution] A forklift (1) comprising a vehicle body (10) equipped with a loading device (20), an audio alert unit (2), a display (4), and a control unit, wherein the control unit includes a first control unit (40) that controls the vehicle body (10), a second control unit (50) that controls the audio alert unit (2), and a third control unit (60) that controls the display (4), wherein the second control unit (50) comprises a memory unit that stores multiple pieces of dangerous act data linked to first information regarding the judgment conditions for dangerous acts and second information regarding the volume when playing warning audio data, a processing unit that judges whether the judgment conditions are met, and an output unit that issues a playback instruction to the audio alert unit (2) if the judgment conditions are met, and wherein the third control unit (60) displays a volume setting screen on the display (4) for changing the volume for each dangerous act.

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 sound quality evaluation method, device and equipment for a low-speed warning tone of a new energy vehicle and a medium, and belongs to the technical field of new energy vehicles. The sound quality evaluation method for the low-speed warning tone of the new energy vehicle comprises the steps that in the process that a to-be-tested vehicle runs along a preset route in a test road according to a plurality of preset vehicle speeds, audio data of the low-speed warning tone outside the to-be-tested vehicle are collected; based on the audio data corresponding to each preset vehicle speed, determining a comprehensive sound pressure level, comprehensive loudness, comprehensive sharpness and comprehensive language definition of the vehicle low-speed prompt tone; the sound quality comprehensive score of the vehicle low-speed warning tone is determined in combination with the comprehensive sound pressure level, the comprehensive loudness, the comprehensive sharpness and the comprehensive language definition, limitation of single-dimension evaluation is avoided, evaluation of the sound quality of the vehicle low-speed warning tone from multiple dimensions is achieved, meanwhile, mechanical vibration noise analysis software is combined, and the evaluation accuracy of the vehicle low-speed warning tone is improved. Finally, the evaluation result of the sound quality of the low-speed prompt sound is quantified.

The embodiment of the invention discloses a sound effect database construction method and an in-vehicle warning tone sound effect recommendation method and device, and belongs to the technical field of vehicles. The method comprises the following steps: at least determining user historical sound effect selection types, the use duration of each user historical sound effect selection type, and sound effect adjustment parameters after each user historical sound effect selection type is selected according to a vehicle historical operation record of a user; and establishing a user preference sound effect database at least according to the user historical sound effect selection types, the use duration of each user historical sound effect selection type and the sound effect adjustment parameters after each user historical sound effect selection type is selected. According to the embodiment of the invention, the sound effect database is constructed at least through the records of the historical operations executed by the user on the vehicle-mounted entertainment system, so that the data management of the sound effect preferred by the user is realized, the scene control of the vehicle-mounted sound effect is realized in cooperation with the vehicle entertainment system, and the diversified entertainment experience requirements of the user are met.

The utility model discloses a low-speed pedestrian alarm and an electric automobile. The low-speed pedestrian alarm comprises a main control module, a voice module and a power amplifier module which are connected in sequence. Wherein the main control module is used for outputting a corresponding voice calling instruction according to the vehicle speed; the voice module is used for calling corresponding voice information from the interior of the voice module according to the voice calling instruction; and the power amplifier module is used for amplifying the voice information so as to realize voice alarm. The vehicle-mounted voice warning device is low in maintenance and upgrading cost, can realize a voice warning function under different vehicle speeds, and can output continuous warning tones with better voice effects, so that the road safety can be improved.

The invention discloses a vehicle noise reduction method, a vehicle, electronic equipment and a storage medium, and the vehicle noise reduction method comprises the steps that a historical noise error signal in the vehicle is collected, the historical noise error signal represents a signal difference between a vehicle warning sound and a historical warning sound elimination signal, and the historical noise error signal represents the signal difference between the vehicle warning sound and the historical warning sound elimination signal; the historical warning sound elimination signal is used for eliminating the vehicle warning sound; generating a current warning sound elimination signal based on the historical noise error signal; the vehicle warning sound is eliminated by outputting the current warning sound elimination signal so as to reduce the noise error signal. According to the vehicle noise reduction method, the feedback type active noise control method is adopted, the current warning sound elimination signal is generated based on the historical noise error signal to eliminate the warning sound of the vehicle, it is not needed to install an additional sensor to collect the warning sound as a reference signal, the noise reduction method is simpler and more convenient, and the cost is reduced.

The present invention provides a vehicle alarm method, device, electronic device, and storage medium, belonging to the field of intelligent driving technology. The method includes: obtaining the distance, relative speed, and angle between a target vehicle and an obstacle; based on at least one of the distance, relative speed, and angle, obtaining predicted state data between the target vehicle and the obstacle, the predicted state data including at least one of the predicted distance, predicted relative speed, and predicted angle; and processing the original warning sound signals from each speaker of the target vehicle based on the predicted state data to obtain a target warning sound signal. By predicting the state between the target vehicle and the obstacle and processing the original warning sound signals based on the predicted state data to obtain the target warning sound signal, the present invention enables the driver to accurately perceive risks and has strong real-time performance.

Escape route or orientation light for use in a standard socket, which is activated by the triggering (alarm) of one or more smoke detectors (by "recognizing" the warning tone)

A power device comprises a buzzer, a control unit and a driving circuit. The control unit records a plurality of PWM frequencies corresponding to a plurality of pitches, and is used for generating a PWM signal according to a prompt tone corresponding to a judgment result, and changing the frequency of the PWM signal according to at least two pitches of the prompt tone. And the driving circuit is used for driving the buzzer to give out the warning tone according to the PWM signal.

The invention provides a vehicle alarm method and device, electronic equipment and a storage medium, and belongs to the technical field of intelligent driving, and the method comprises the steps: obtaining the distance, relative speed and angle between a target vehicle and an obstacle; based on at least one of the distance, the relative speed and the angle, obtaining predicted state data between the target vehicle and the obstacle, the predicted state data including at least one of a predicted distance, a predicted relative speed and a predicted angle; according to the prediction state data, original warning sound signals of all loudspeakers of the target vehicle are processed, and target warning sound signals are obtained. According to the method, the state between the target vehicle and the obstacle is predicted, the original warning sound signal is processed according to the predicted state data, the target warning sound signal is obtained, a driver can accurately perceive the risk, and the real-time performance is high.

The invention provides a prompt tone adjusting method and system and a storage medium. The prompt tone adjusting method comprises the steps that prompt tones are collected; detecting eye and head movement conditions and eye closing conditions of the driver; different prompt tones are stored; and judging whether the driver notices the warning tone or not according to the eye and head movement condition and eye closing condition signals detected by the logic, if so, keeping the warning tone unchanged, and if not, switching the warning tone. The system has the advantages that the problem of accidents caused by inattention of a driver can be solved, the warning tone collection module is arranged to collect warning tones and remove impurities, the efficiency and accuracy are improved, the visual detection module is arranged to detect the eye and head movement conditions of the driver, and the warning tone storage module is arranged to store the warning tones. Different prompt tones can be stored, and the controller is arranged and has judgment logic.

An example provides call processing by receiving a call invite message associated with a call intended for a call device, identifying one or more audio portions of the call, creating one or more audio packets to include a warning audio message, and forwarding the created one or more audio packets to the intended call device.

Vehicle approach warning device (1) for indicating a vehicle approach by emitting a warning tone from a loudspeaker (2) with which a vehicle is equipped, the vehicle approach warning device (1) comprising: a reference voltage generating circuit (12) which generates a reference voltage (Vref) obtained by dividing a power supply voltage applied to a power supply terminal (Vt) by a plurality of resistors (12a, 12b); a sound emission signal generating section (10) having a digital / analog converter (10b) which generates a sound emission signal by means of the digital / analog converter (10b); a power amplifier (14) which outputs an amplified signal at an output terminal (OUT) of the power amplifier (14), the amplified signal being generated by amplifying a differential voltage between the reference voltage (Vref) and the voltage of the sound emission signal; a coupling capacitor (15) placed between the output terminal (OUT) of the power amplifier (14) and an output terminal for a loudspeaker (2); and a rise delay capacitor (16) placed between a connection point connecting the plurality of resistors (12a, 12b) generating the reference voltage (Vref) and a ground terminal, the rise delay capacitor (16) generating a rise time of the reference voltage (Vref) to delay it at a start of the power supply to the power supply terminal (Vt), where The tone emission signal generation section (10) increases the tone emission signal to a voltage level substantially equal to the reference voltage (Vref) such that a variation of the differential voltage between the reference voltage (Vref) and the voltage of the tone emission signal lies within a predetermined range.

To provide a cargo handling vehicle capable of changing the volume of warning voice data depending on the operating state of the vehicle body. [Solution] A forklift (1) comprising a vehicle body (10) equipped with a loading device (20), an audio alert unit (2), a display (4), and a control unit, wherein the control unit includes a first control unit (40) that controls the vehicle body (10), a second control unit (50) that controls the audio alert unit (2), and a third control unit (60) that controls the display (4), wherein the second control unit (50) comprises a memory unit that stores multiple pieces of dangerous act data linked to information relating to the judgment conditions for dangerous acts, the operating state of the vehicle body (10), and the volume when playing warning audio data, a processing unit that judges whether the judgment conditions are met and identifies the operating state and volume, and an output unit that issues playback instructions to the audio alert unit (2), and the third control unit (60) displays a volume setting screen on the display unit to change the volume for each operating state.

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.