17 results about "Audio sensing" patented technology

The invention discloses a silver brazing temperature control device for a PDC (Polycrystalline Diamond Compact) drill bit. The silver brazing temperature control device comprises a base plate, a lower frame, a sliding table component, a driving component, an indexing head component, a superaudio frequency induction heating system, a closed-loop temperature control system and a foot switch. The sliding table assembly achieves X-axis position adjustment, Y-axis position adjustment and Z-axis position adjustment, the indexing head assembly achieves rotation and inclination angle adjustment through the chuck assembly and the inclination angle mechanism, and multi-axis positioning is formed. The ultrasonic frequency induction heating system adopts a profiling red copper pipe induction coil to locally heat the PDC composite sheet. The closed-loop temperature control system controls the welding temperature to be 690-700 DEG C, the temperature control precision to be + / -5 DEG C and the response time to be smaller than or equal to 10 ms in real time through an infrared thermometer, a signal system transmitting box and a single chip microcomputer, multi-point temperature measurement is supported, and heating is controlled to be started and stopped through a foot switch. A closed-loop temperature control system and superaudio frequency induction heating are combined, local real-time heating of the PDC is achieved, the welding temperature is accurately controlled, the welding quality and efficiency are improved, and the method is suitable for the complex geometry and impact resistance requirements of a coal mine PDC drill bit.

The utility model relates to the technical field of heating power supplies, in particular to an ultrasonic frequency induction heating power supply convenient to disassemble, which comprises a power supply protection box body, two clamping plates are arranged in the power supply protection box body in a sliding manner, and two mounting frames are arranged at the upper end part of the power supply protection box body in a sliding manner. A threaded rotating rod is rotatably mounted in each mounting frame, a fixed bottom plate is slidably mounted at the rear side end of the power supply protection box body, and bolts are mounted on the left side and the right side of the fixed bottom plate. According to the improved ultrasonic frequency induction heating power supply convenient to disassemble, the fixed bottom plate is matched with the bolts along the threaded holes, the fixed bottom plate is installed at a designated position, then the clamping groove formed in the side end of the fixed bottom plate is matched with the buckling plate, and the power supply protection box body and other parts are installed at designated positions; the power supply can be conveniently mounted and dismounted when the device is used, so that the use flexibility of the device is improved, and the device is convenient to assemble and use.

The utility model discloses a water supply pipeline leakage noise recording device which comprises a connecting seat, a data recorder is fixedly installed at the middle end of the top of the connecting seat, and three ball pins are fixedly connected to the left side of the connecting seat. According to the three-way water supply pipeline leakage detection device, through the arrangement of the connecting base, the three sets of ball pins, the ball cup, the fixing sleeve, the adjusting rod, the fixing box, the rubber base and the audio inductors can be supported, and meanwhile personnel can rotate and adjust the positions of the three sets of audio inductors when leakage detection is conducted on the three-way water supply pipeline; the audio sensors are arranged on the three-way water supply pipeline, so that personnel can distribute the audio sensors at different parts of the three-way water supply pipeline conveniently, and the purpose of recording leakage noise of the water supply pipeline is achieved under the action of cooperation of the rubber seat, the binding band, the connecting frame, the hook-and-loop fastener, the rotating shaft, the first spring, the limiting gear, the limiting gear ring, the winding shaft, the audio sensors and the data recorder.

The utility model discloses an alarm device capable of carrying out audio intelligent detection. The alarm device comprises an audio generation device, an audio induction detection device and an intelligent control panel system, the audio generating device is electrically connected with the intelligent control panel system, and the intelligent control panel system drives the audio generating device to send out voice broadcast; the audio induction detection device inducts voice broadcast audio sent by the audio generation device in real time, converts the voice broadcast audio into a voltage signal and inputs the voltage signal into the intelligent control panel system; according to the utility model, the audio induction detector continuously collects the sound when the horn works, so that the problem that the state and volume of the horn can be monitored and controlled in real time in the using process of the horn of the alarm is solved.

The disclosed technology is directed towards efficiently identifying a first entity (e.g., a user or sensor) as a potential witness to an event. A first dataset describing event time data and event location data of an event are obtained from a first device. A second dataset describing device time data and device location data are obtained via a device associated with a second entity, e.g., a user. By analyzing the first and second datasets, e.g., for time and location intersection, the second entity can be identified as a potential witness to the event, and notified of such. Factors such as line of sight, speed and direction, audio sensing range versus event volume, and the like of the second entity can be used in determining whether the second entity is a likely witness. A witness to a live event can be identified and asked to send in live (e.g., video) evidence.

This invention provides a control method and a sterilizing water preparation system that adaptively adjust the concentration of sterilizing gas based on water flow rate, belonging to the field of water treatment sterilization technology. The method uses an audio sensor to sample the audio signal generated by the water flow in the gas path. After filtering and noise reduction, it determines whether there are effective water flow audio characteristics, thereby automatically controlling the start and stop of the sterilizing gas generator. Based on the frequency and / or amplitude characteristics of the audio signal, it adaptively adjusts the concentration of the sterilizing gas output by the generator, thus maintaining the concentration of the final sterilizing water within a reasonable and effective range. This invention employs a sliding window weighted filtering algorithm to improve control accuracy and also introduces a temperature sensor to achieve water temperature interlock control. While ensuring the sterilization effect of the sterilizing water, it also features economy and ease of operation. Furthermore, it achieves corrosion resistance through non-contact audio sensing, making it widely applicable to various sterilization application scenarios.

The disclosed technology is directed towards efficiently identifying a first entity (e.g., a user or sensor) as a potential witness to an event. A first dataset describing event time data and event location data of an event are obtained from a first device. A second dataset describing device time data and device location data are obtained via a device associated with a second entity, e.g., a user. By analyzing the first and second datasets, e.g., for time and location intersection, the second entity can be identified as a potential witness to the event, and notified of such. Factors such as line of sight, speed and direction, audio sensing range versus event volume, and the like of the second entity can be used in determining whether the second entity is a likely witness. A witness to a live event can be identified and asked to send in live (e.g., video) evidence.

The application discloses an audio sensing signal optimization method and device based on constant power constraint, which comprises the following steps: filtering an audio sensing signal with constant power as a constraint through a filter to obtain a filtered audio sensing signal; calculating an error loss function of the filter based on an audio actual signal and the filtered audio sensing signal; and performing block iterative adjustment on filter coefficients according to the error loss function until the error loss function converges; and processing the audio sensing signal by using the filter after the error loss function converges, so that the iterative solution of the filter coefficients is realized on the basis of constant power, the amplitude recovery of outliers in the audio sensing signal can be ensured as much as possible during filtering, the noise of the filtered audio sensing signal can be effectively reduced, and the accuracy and effectiveness of optical fiber sensing are improved.

A phonocardiogram (PCG) sensing device is disclosed that comprises a body audio sensing device including a body audio sensing transducer arranged to sense animal body audio when the body audio sensing device is disposed adjacent an animal body in a body audio sensing position and an acoustic path for body audio is defined between the animal body and the body audio sensing transducer. The PCG sensing device also includes an ambient audio sensing device including an ambient audio sensing transducer arranged to sense ambient audio present in an environment adjacent the phonocardiogram sensing device when the body audio sensing device is disposed in the body audio sensing position. The body audio sensing device produces a body audio signal indicative of animal body audio, the ambient audio sensing device produces an ambient audio signal indicative of the ambient audio, and the ambient audio signal is used to increase the signal to noise ratio of the body audio signal.

Systems and methods for simultaneously recovering and separate sounds from multiple sources using Impulse Radio Ultra-Wideband (IR-UWB) signals are described. In one embodiment, a device can be configured for generating an audio signal based on audio source ranging using ultrawideband signals. In an embodiment the device includes, a transmitter circuitry, a receiver circuitry, memory and a processor. The processor configured to generate a radio signal. The radio signal including an ultra-wideband Gaussian pulse modulated on a radio-frequency carrier. The processor further configured to transmit the radio signal using the transmitter circuitry, receive one or more backscattered signals at the receiver circuitry, demodulate the one or more backscattered signals to generate one or more baseband signals, and generate a set of data frames based on the one or more baseband signals.

The application discloses an audio sensing signal optimization method and device based on an improved least mean method, which comprises the following steps: calculating an error loss function of a filter based on a least mean square error and a square term least mean square error of an audio actual signal and an audio sensing signal filtered through the filter by circulation, so as to increase the proportion of outliers in the audio sensing signal in the total error loss function; iteratively adjusting filter coefficients according to the error loss function until the error loss function converges; and processing the audio sensing signal by using the filter after the error loss function converges, so that the outliers in the audio sensing signal are better estimated, the noise of the audio sensing signal after filtering is reduced, and the accuracy and effectiveness of fiber sensing are improved.

The invention relates to the field of data compensation, in particular to an audio compensation method and system for a Bluetooth headset, and the method comprises the steps: obtaining the posture information of the Bluetooth headset, carrying out the analysis of the audio playing effect of the Bluetooth headset according to the posture information, obtaining an audio sensing mode, recording the audio data of the Bluetooth headset, and transmitting the audio data to the Bluetooth headset; analyzing the user perception effect of the audio data based on the audio perception mode to generate audio perception data, recording the adjustment information of the user for the Bluetooth earphone, analyzing the audio perception demand of the user according to the adjustment information and the audio perception data to generate perception demand characteristics, and sending the perception demand characteristics to the Bluetooth earphone. And performing adaptive compensation on the audio data according to the perception demand characteristics to generate compensated audio data.

The invention relates to an apparatus for controlling radiofrequency sensing and audio sensing of a network. The network (100) comprises a plurality of network devices (111, 112, 113, 114), e.g. smart lights, and is adapted to perform radiofrequency sensing and audio sensing utilizing one or more of the network devices. A context parameter providing unit (121) provides context parameters, wherein the context parameters are indicative of a context in which the radiofrequency sensing and the audio sensing is performed. A controlling unit (122) controls the radiofrequency sensing and the audio sensing of the network in dependency of each other based on the context parameters. This allows for an improved monitoring of an area.

The invention relates to the technical field of crankshaft production quenching, in particular to a crankshaft production-based quenching device which comprises an induction heating ring, a cooling part, a cooling box, a discharge pipe, a first supporting stand column, a supporting limiting base, a fixing frame, a first electric push rod, a superaudio frequency induction heating machine, a clamping adjusting main body and a second supporting stand column, the superaudio frequency induction heating machine is fixedly installed on the supporting and limiting base through bolts, and the fixing frame is fixedly connected to the bottom of the tail end of the supporting and limiting base. According to the crankshaft quenching device, the position adjusting part and the lifting clamping part in the clamping adjusting main body are cooperatively matched for operation, so that the ends of crankshafts with different specifications and lengths can be accurately and stably clamped and fixed during quenching, and the crankshafts can be conveniently clamped and moved; and a lifting clamping part and a position adjusting part are arranged, so that crankshaft materials can be quickly and efficiently added in the continuous quenching process, and the quenching efficiency is greatly improved.

The present application provides an alarm device based on artificial intelligence voice analysis, which relates to the technical field of voice analysis. An audio acquisition sensor is deployed in a key monitoring area through an audio sensing deployment module; an environmental fluctuation recognition module obtains the regional environmental fluctuation coefficient of the key monitoring area; an alarm threshold configuration module determines the regional alarm threshold based on the regional environmental fluctuation coefficient; an abnormal keyword library module traverses the historical voice data record sequence extracted by the historical voice data acquisition module to construct a regional abnormal keyword library; a voice abnormality analyzer module constructs a regional intelligent voice abnormality analyzer based on the regional abnormal keyword library and the regional alarm threshold; an abnormality recognition module uses the regional intelligent voice abnormality analyzer to perform abnormality recognition on real-time voice data to obtain alarm information. The present application solves the technical problem in the prior art that there is a lack of accurate recognition means for audio content in complex environments, resulting in frequent false alarms and missed alarms, and improves the accuracy and response speed of alarms.

The invention discloses a financial security intelligent audio management system and method based on the Internet of Things, and relates to the technical field of security monitoring, and the method comprises the steps: collecting and preprocessing original audio stream data through a distributed audio sensing node, and generating a structured feature data packet; the edge intelligent analysis unit receives and deeply recognizes the data packet, and event semantic description is generated; the cloud collaborative management platform gathers and analyzes a plurality of event semantic descriptions, and generates a linkage control instruction; the security linkage execution module drives the video monitoring subsystem, the alarm subsystem, the access control subsystem and the broadcast subsystem to execute a cooperative response action according to the instruction; the system comprises a distributed audio sensing node, an edge intelligent analysis unit, a cloud collaborative management platform and a security linkage execution module. According to the invention, millisecond-level quick response can be realized, the false alarm rate is reduced, the cooperation efficiency of multiple security and protection subsystems is improved, and the security and privacy of audio data are ensured.

The invention discloses an alarm device capable of performing audio intelligent detection and an alarm method. The alarm device comprises an audio generation device, an audio induction detection device and an intelligent control panel system, the audio generating device is electrically connected with the intelligent control panel system, and the intelligent control panel system drives the audio generating device to send out voice broadcast; the audio induction detection device inducts voice broadcast audio sent by the audio generation device in real time, converts the voice broadcast audio into a voltage signal and inputs the voltage signal into the intelligent control panel system; according to the invention, the audio induction detector continuously collects the sound when the horn works, so that the problem that the state and volume of the horn can be monitored and controlled in real time in the using process of the horn of the alarm is solved.