468 results about "Volume control" patented technology

A controller configured to control a sound producing module includes a volume controlling unit configured to determine a demodulation amplitude and a modulation amplitude corresponding to a target volume. The sound producing module comprises a driving circuit and an air-pulse generating device. The driving circuit generates a demodulation driving signal according to the demodulation amplitude and generates a modulation driving signal according to the modulation amplitude, so as to drive the air-pulse generating device. The air-pulse generating device produces sound via generating a plurality of air pulses at an ultrasonic pulse rate.

The invention relates to the technical field of remote volume adjustment, in particular to a control system and method for stage intelligent sound control sound equipment, and aims to accurately capture time distribution and amplitude characteristics of volume fluctuation by collecting environmental noise data in real time and combining a dynamic data analysis method, predict a future volume trend based on historical data, and improve the sound control efficiency. According to the logic based on dynamic prediction, the response capacity to sound changes is enhanced in volume control, the Kriging interpolation method is adopted to accurately analyze sound field requirements, the requirements of different areas are matched by adjusting sound field parameters, the sound field uniformity and the coverage accuracy are improved, and the volume control accuracy is improved. Meanwhile, the intelligence and automation level of the sound system is improved, the output power and frequency distribution of the sound equipment are dynamically adjusted through the particle swarm optimization algorithm, the output volume can be continuously optimized according to the real-time environment and sound field requirements, and the individual requirements of different stage performances are met.

Embodiments are provided for satellite volume control. An example method includes receiving an input at a playback device to adjust a volume for a plurality of playback devices that are grouped for synchronous playback of audio content, wherein the plurality of playback devices includes the playback device. The method also includes sending a first message over a network from the playback device to a device associated with the plurality of playback devices, the first message including information based on the input, wherein the information is used to adjust the volume of the plurality of playback devices. The method also includes receiving a second message at the playback device over the network, the second message including information for the volume of the playback device, wherein the volume is based on the adjusted volume of the plurality of playback devices.

The invention relates to the technical field of sound console, and discloses a balance adjustment method, system and device for a sound console volume controller, and a medium. The method comprises the following steps: processing an audio signal of an input end of the sound console to obtain an initial system parameter matrix; performing probability density function calculation on the initial system parameter matrix to obtain an audio state data matrix and a noise feature data matrix; performing first-order volume control calculation based on the audio state data matrix to obtain a volume control data matrix; performing second-order frequency equalization calculation according to the volume control data matrix to obtain a frequency equalization control data matrix; performing iterative optimization calculation on the control parameters to obtain an optimal control parameter matrix; and performing dual-channel parallel calculation on the transfer function of the volume control channel and the transfer function of the frequency equalization channel to obtain an audio signal of the output end of the sound console, thereby realizing independent adjustment of volume control and frequency equalization, and ensuring high quality of audio output.

The invention relates to a marine weather-tight shutter device and a control method. A shutter with an electric control function is installed in the outward direction of a ventilation and heat dissipation opening of a cabin, a shutter with a water leakage detection function is installed in the inward direction of the ventilation and heat dissipation opening of the cabin, and water pressure reducing dustproof cotton is placed between the shutter with the water leakage detection function and the shutter with the electric control function to form the weather-tight shutter device. The water leakage detection module is connected with a water leakage detection cable in the shutter with the water leakage detection function and a PLC module of an electric control system, and the PLC module is connected with a temperature measuring instrument in a cabin and is connected with the shutter with the electric control function through a sensor and an actuator. According to the weather-tight louver device for the ship and the control method, besides conventional rainproof and heat dissipation functions, the functions of dust prevention, louver opening air volume control, water drainage, water leakage detection alarm, temperature detection, detachable maintenance and the like are further achieved, the air volume of a cabin louver opening is effectively increased, and risks caused by water inflow and too high temperature of a cabin are prevented.

The invention discloses a capsule robot for collecting intestinal flora and a control method of the capsule robot. The capsule robot comprises a capsule robot body and a rotatable collecting module installed in the capsule robot body. A collecting port is formed in the capsule robot body, a plurality of collecting cabins are formed in the rotating face of the collecting module, and the collecting module rotates to enable the collecting cabins to be communicated with or not communicated with the collecting port. The capsule robot is small in size and capable of achieving the flora sampling function at the same time, all the assemblies are compactly integrated in the capsule robot, the cross contamination problem between different detection parts and different collection cabins is avoided through structural design and certain sealing treatment, a control circuit is a small-size control panel, and the control circuit is simple in structure and convenient to operate. According to the capsule robot, circuit layout and space utilization are optimized, the size is reduced, meanwhile, functional integrity is guaranteed, remote non-contact collection in the body of a patient can be achieved through Bluetooth communication wireless control, and the capsule robot has the long-acting power management capacity.

Aspects of the subject technology provide individual volume controls for concurrently operating audio sources at an electronic device. The audio sources may be spatialized audio sources that are associated with display objects that are displayed to appear at various three-dimensional locations around a user of the electronic device, such as in an extended reality environment. In this way, an electronic device may provide the user with the ability to individually control the volumes of the various audio streams originating from the various three-dimensional locations around the user. The individual volume controls may be applied according to individual volume control curves, and / or based on a user intent determined by the electronic device.

The invention belongs to the technical field of expiration detection, and particularly relates to an intelligent expiration tail end gas sampling device and method. The device specifically comprises a shell, a circuit board, a carbon dioxide sensor, a pressure sensor, a baffle, a top cover, a suspension plate, an air pump, a relay, a breathing mask, a mask connector with an internal small cavity, a thermal desorption tube, a TD tube, a Bluetooth module, an air path channel, a silicone tube and the like. End-expiratory gas collection is achieved through accurate triggering and flow control, and dead space gas mixing is avoided; collected gas is directly enriched into a thermal desorption (TD) adsorption tube, so that the loss of VOCs in the transmission and storage process is reduced; and through quantitative sampling volume control and an optimized pipeline material / structure, the adsorption / release and background pollution of the device body to the sample are reduced, so that the representativeness and sensitivity of sampling and the repeatability among different operators / different places are improved.

A method performed by a first electronic device, the method includes, while engaged in a call with a second electronic device, initiating a joint media playback session in which the first and second electronic devices independently stream media content for synchronous playback; driving a speaker with a mix of a downlink signal of the call and an audio signal of the media content at an overall volume level; receiving a user-adjustment at a single volume control for the first electronic device to reduce the overall volume level; in response to the user adjustment, applying a first gain adjustment to the downlink signal and a second gain adjustment to the audio signal; and driving the speaker with a mix of the downlink signal and the audio signal at the reduced volume level.

The invention discloses a cooperative operation control method and system driven by parallel pumps of a crane based on working condition identification, and belongs to the technical field of engineering machinery, and the cooperative operation control system comprises an intelligent working condition sensing and control module, a discrete hydraulic driving module, a cooperative speed regulation module and a dynamic response execution module, a parallel pump set strategy is dynamically configured in combination with working condition identification of load pressure, a cargo boom angle and a handle input signal, and flow is smoothly output as required on the basis of grading of light loads, medium loads and heavy loads and cooperative adjustment of the number of matched constant delivery pumps and the rotating speed of a motor according to the single-action working condition; aiming at the hoisting and variable-amplitude composite action, a variable-speed volume control or pump valve cooperative control mode is selected by judging the state of a proportional switch electromagnetic valve, the flow distribution and dynamic response are optimized, the energy efficiency is improved to 82% or above, meanwhile, the speed fluctuation rate control of + / -5% is realized, and the method is suitable for the electric upgrading scene of the crane.

The invention belongs to the technical field of heating cigarette smoking sets, and particularly relates to a smoking capacity control type aerosol generating device and an aerosol generating method. The aerosol-generating device comprises: an aerosol-generating article containing compartment (70); the negative pressure generating piece (20) comprises a gradually-shrinking structure (21) and a buffering structure (25). The aerosol generating product containing bin (70) is communicated to the negative pressure area; a tapered cavity is formed in the tapered structure (21), a buffer cavity is formed in the buffer structure (25), and the cavity in the aerosol generating product containing bin (70), the tapered cavity and the buffer cavity are in airflow communication; the negative pressure area of the negative pressure generating piece (20) is the downstream part of the gradually-shrinking type cavity, the upstream part of the buffering cavity or the area between the gradually-shrinking type cavity and the buffering cavity. By means of the device, a consumer can carry out the smoking process according to needs of the consumer, and the amount of inhaled aerosol is controlled by the smoking intensity of the consumer.

A portable centrifuge comprising a base, which includes a rotational mechanism contained within. A sequester wheel having a plurality of concentric rings, forming at least one channel and a central container. The at least one channel comprising a second volume and the central container comprising a first volume. A first cover is disposed over the sequester wheel to create a seal. A second cover is disposed over the first cover and is rotatable to engage with the rotational mechanism to initiate rotation at a predetermined RPM. The whole blood and / or other tissue is separated into its constituent components and deposited into the at least one channel and the central container. Specific volumes of the constituent components may be calculated to match or substantially match the first and second volumes for predetermined volume control and ease of access.

The invention relates to the technical field of watering cart quantity control, in particular to a watering cart quantity control system and method based on the position of a water adding point and the remaining amount of a water tank, and the system comprises an air condition recognition module, a water storage capacity judgment module, an operation range distribution module, a watering flow adjustment module and an operation path confirmation module. According to the method, the particle concentration and the surface temperature are combined to divide the sprinkling intensity of an operation section, sustainable sprinkling segments are screened according to the remaining water amount, the water amount coverage range is limited, distance matching is carried out on the water amount coverage range and water adding point distribution, and the sequence of executable task segments is recombined; setting a flow interval according to a watering grade, dynamically adjusting spraying output in combination with a vehicle speed, extracting a flow change behavior record in the whole process, performing priority ranking on task segments through water saving performance, and constructing a water control execution scheme with pollution response, water quantity coordination and path screening capabilities; synchronous linkage and fine control of the spraying range, flow adjustment and the operation path are achieved.

The invention relates to an integrated active exhaust volume control device for CRRT, which belongs to the technical field of medical instruments and comprises a main mounting frame, and an on-line self-exhaust air bubble catcher, a continuous operation peristaltic pump, a mechanical volume follow-up compensation device, a module core controller and a piezoelectric ceramic micro compensator are integrated and fixed on the main mounting frame. The online self-discharging air bubble catcher actively removes bubbles in liquid, the peristaltic pump is continuously operated to achieve non-pulse continuous conveying of displacement liquid, the mechanical volume follow-up compensation device accurately regulates and controls waste liquid discharging, the module core controller receives signals in real time and coordinates actions of all components, and the piezoelectric ceramic micro compensator achieves fine adjustment of net dehydration. The module can eliminate bubble interference from the source, guarantee the continuity of CRRT treatment, improve the capacity management precision, simplify clinical operation, relieve the burden of medical staff and guarantee the hemodynamic stability of patients, and is suitable for CRRT treatment of critical patients.

The utility model discloses a volume control type mouth and nose aerosol dosing device which comprises a storage tank, an inhalation mechanism and a mask mechanism, the two ends of the storage tank are both of an open structure and are provided with a medicine inlet end and a medicine suction end respectively, the inhalation mechanism is arranged at the medicine suction end of the storage tank and comprises a blocking cover, and the blocking cover is arranged on the storage tank. A closed structure is arranged between the blocking cover and the suction end, and an adjusting structure is arranged between the blocking cover and a tank body of the storage tank and used for adjusting the size of an opening of the closed structure; the mask mechanism sleeves one end, away from the storage tank, of the suction mechanism. The closed structure is designed, the size of the opening of the closed structure is adjusted through the arrangement of the adjusting structure, so that the opening size of the medicine suction end of the storage tank is adjusted, the medicine suction end of the device is adjusted, and patients with different vital capacities can adjust the size of the medicine suction caliber according to the medicine suction requirements; and therefore, the device is more flexible to use.

The utility model discloses an integrated cabinet. The integrated cabinet comprises a cabinet body; an integrated sound box and a drawer, wherein the integrated sound box and the drawer are both installed in the cabinet body; the locking piece is used for locking the drawer; the control assembly is arranged on the cabinet body, the control assembly comprises a volume control piece and a fingerprint unlocking device, the volume control piece is used for adjusting the volume of the integrated sound box, the fingerprint unlocking device is electrically connected with the locking piece, the fingerprint unlocking device is configured to control unlocking of the locking piece, and the volume control piece is used for controlling the volume of the integrated sound box. And the fingerprint unlocking device is arranged on the volume control piece. According to the integrated cabinet provided by the utility model, the control assembly is arranged, the control assembly comprises the volume control piece and the fingerprint unlocking device, and the fingerprint unlocking device is arranged on the volume control piece, so that the integrated cabinet is simple in structure and good in integration, the operation is more convenient when a user adjusts the volume of the integrated sound equipment or unlocks the drawer, and the use experience of the user is better.

This disclosure provides a method of automatic volume control for calibration track playback in a multi-channel speaker system and provides a multi-channel speaker system. The multi-channel speaker system may include a plurality of speakers each having at least one built-in microphone. The method may comprise obtaining microphone input signals from built-in microphones in the plurality of speakers; estimating energy values for the microphone input signals; selecting interesting energy values from the energy values; obtaining an average energy value of the selected energy values; and calculating a calibrated volume for the automatic volume control based on the average energy value.

An adapter for incorporation into an open well flow cell, the adapter including a body having an upper surface, a lower surface spaced from the upper surface defining a thickness profile therebetween, at least one side extending about a perimeter of the body, an inlet formed in the body extending through the thickness of the upper surface and the lower surface, at least one foot extending from the lower surface, each foot of the at least one foot extending a vertical distance away from the lower surface and a protrusion extending from the upper surface. The adaptor configured to be placed over, or onto, an open well flow cell to form an effectively closed, and reversible, flow cell. A variety of structural features are included to inhibit / prohibit gas bubbles from evaporating from the fluid reagent within the cell, and / or providing egress or venting of such bubbles.

The invention discloses an allergen purification method and system based on an air conditioner condensation adsorption principle. The allergen purification system comprises a central control unit, a user control end, a desensitization mode trigger module, a fresh air volume control module, an air speed adjusting module, a compressor frequency conversion control module, a particulate matter concentration detection module and a temperature detection module. The output end of the user control end is electrically connected with the input end of the central control unit, the output end of the desensitization mode trigger module is electrically connected with the input end of the central control unit, and the output end of the particulate matter concentration detection module is electrically connected with the input end of the central control unit. According to the air conditioning system, the active desensitization process without an efficient filter screen is achieved, the equipment maintenance frequency and the consumable cost are reduced, operation strategy optimization is used for replacing large structural modification, the adaptability is high, and rapid integration of the air conditioning system is facilitated.

1. Name of the product in this design: Knob Controller (RYYT003). 2. Application of this design: This design is used for powering on / off, volume control, treble adjustment, bass adjustment, left and right channel balance, and vibration amplitude adjustment and control of audio equipment. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention provides a sound effect optimization method based on an SOC architecture, a storage medium and electronic equipment. Comprising the following steps: S1, inputting an audio signal; s2, performing channel identification and switching on the audio signal; s3, when the sound channel number of the audio signal is less than a preset target sound channel number, performing up-mixing processing on the audio signal to obtain a multi-sound-channel signal with the preset target sound channel number; s4, performing global volume control and overall filter processing on the multi-channel signal; s5, performing gain control and intelligent loudness control on the filtered multichannel signal, wherein the gain control comprises application of a preset sound effect mode selected by a user; and S6, the signal after gain and loudness control is routed to a corresponding output channel for output according to the selected output scene mode. The invention provides a complete set of complete and high-quality audio solution from an input source to multichannel output, and is suitable for various audio products such as earphones, cinemas, automobiles and the like.

A method for controlling and interacting with a three-dimensional environment is provided. A computer system displays an immersion control, a volume control, an element configured to allow or limit penetration in different operating modes of the computer system, and / or an option selectable to cause display of a representation of content from a second computer system via a display generation component of the computer system. While the second computer system is displaying the content, the first computer system detects an input corresponding to a request to display a representation of the content from the second computer system via a display generating component of the first computer system, and in response, displays the representation of the content from the second computer system. A process is initiated that displays a representation of the content and does not emphasize the content displayed by the second computer system. The first computer system facilitates disambiguating a second computer system from the plurality of computer systems to display a representation of content from the second computer system.

The invention provides a protection method, device, equipment and medium for a nuclear power plant reactor, and the method comprises the following steps: obtaining water level data in a reactor pressure vessel in real time, and sending a low water level signal when the water level data is lower than a preset low water level; a protection signal is sent out according to the low water level signal; based on the protection signal, a safety injection system supplements coolant into the reactor pressure vessel and initiates a blowdown isolation function of the chemical and volume control system. By means of the protection method, device and equipment for the nuclear power plant reactor and the medium, water can be supplemented to the reactor core under the condition that a reactor protection system fails.

The utility model discloses a foldable protective fence for elevator maintenance. The foldable protective fence aims at solving the problems of a traditional protective fence for elevator maintenance in the prior art in the aspects of volume control, stability and protection comprehensiveness. The protective fence comprises a left vertical rod and a right vertical rod, and notches are formed in the peripheries of the vertical rods and used for being connected with a telescopic connecting rod mechanism. The connecting rod mechanism is composed of a plurality of metal rod pieces which are connected in a crossed mode to form a stable rhombus or polygon-like structure, the connecting rod mechanism is connected with the vertical rods through the notches, and the foldable and telescopic functions of the protective fence are achieved. A fixing ring is arranged in the middle of the vertical rod and used for limiting the maximum opening and closing width of the connecting rod mechanism, and stability is enhanced. The trundle mounting rods are vertically arranged in the middles of the connecting rod mechanisms, and universal wheels are mounted on the trundle mounting rods, so that the protective fence is convenient to move and fix. A telescopic cross rod is rotatably arranged above the vertical rod on one side, a convex column is arranged above the vertical rod on the other side, and a hook at the tail end of the cross rod can hook the convex column, so that the protective fence is further fixed. The foldable bottom feet are arranged at the lower ends of the vertical rods, and stable supporting is provided for the protective fence. The elevator maintenance platform has the advantages of being small in size, high in stability, comprehensive in protection, convenient and fast to move and the like, is suitable for various elevator maintenance scenes, and effectively improves safety and efficiency of maintenance operation.

The invention provides a laboratory reagent distribution device and a laboratory reagent distribution method. The distribution device comprises a rack, a distribution quantity control mechanism arranged on the rack, a pressure transmission assembly and a multi-channel cooperative control valve group, the distribution quantity control mechanism is used for generating distribution pressure with preset volume, a pressure outlet of the distribution quantity control mechanism is connected with a first transmission port of the pressure transmission assembly, and a second transmission port of the pressure transmission assembly is connected with an air inlet of the multi-channel cooperative control valve group; the multi-channel cooperative control valve set comprises a valve element and a valve seat, a main air guide channel is arranged in the valve element, a plurality of branch air guide channels are arranged around the center of the valve seat in the radial direction of the valve seat, and the valve element is rotationally connected with the valve seat so that the main air guide channel can be communicated with any branch air guide channel. The plurality of branch air guide channels are respectively connected with a plurality of reagent bottles in a one-to-one correspondence manner; each reagent bottle is connected with a liquid outlet pipe group for distributing reagents; the method can be suitable for a small-scale intermittent experiment mode, the comprehensive utilization rate of the reagent can be improved, and the taking process is simplified.

This invention belongs to the technical field of concrete pouring, specifically an intelligent concrete placing machine for pouring irregularly shaped diaphragm walls. It includes a support frame and a main hopper. Walking plates are fixedly connected to both ends of the main hopper, and each walking plate has wheels at both ends. These wheels are embedded and slide in grooves within the support frame. Distributor bins are located on both sides of the bottom of the main hopper, and each distributor bin has a discharge volume control component. The discharge volume control component includes a fixed frame fixedly connected to one side of the outer wall of the distributor bin. This invention utilizes the discharge volume control component. When the radial rod moves, the corresponding chute rod also moves, driving the guide column to move through its chute. The driven rod slides on the top of the fixed ring, and the frame moves synchronously. Through the coordinated action of the frame and the adjusting plate, the elastic pad can be stretched, thereby achieving the purpose of adjusting the size of the funnel-shaped structure.

This utility model discloses a liquid precision volume control device, including a filling machine, a mounting frame mounted on the filling machine, a drain pipe at the bottom of the mounting frame, a solenoid valve mounted on the drain pipe, and a mounting assembly between the drain pipe and the mounting frame. A connecting collar is slidably sleeved on the top of the outer wall of the drain pipe, and the outer wall of the connecting collar is slidably engaged with the mounting frame. A positioning plate is mounted on the outer wall of the drain pipe, and a limiting spring is located at the bottom of the positioning plate. Under the action of the limiting spring, the positioning plate is slidably engaged with the inside of the mounting frame. This utility model utilizes the cooperative use of the mounting frame, drain pipe, and mounting assembly. When the positioning plate is engaged with the inside of the mounting frame by the limiting spring, the drain pipe can be stably mounted on the mounting frame. Pulling down the positioning plate releases the engagement between the positioning plate and the mounting frame. Sliding the drain pipe so that the limiting disc is located at the slot on the mounting frame allows for direct disassembly and maintenance of the drain pipe.

Presented herein are techniques to maintain a balanced loudness across stimulation channels when the volume of a hearing device is adjusted. The volume control techniques provided herein may be used to set an overall balanced map loudness and / or to replace existing volume controls in a stand-alone approach.

The utility model relates to the technical field of automatic filling machines, and discloses a diamond grinding fluid full-automatic filling machine which comprises a filling device, a first motor is fixedly assembled on the top of the filling device, a stirring rod is fixedly assembled on a power output shaft of the first motor, a first drainage plate is fixedly assembled on the inner wall of the filling device, and a second drainage plate is fixedly assembled on the inner wall of the filling device. And a quantity control assembly is arranged at the bottom of the inner wall of the filling device. A controller sends out a signal, a liquid pump pumps out grinding liquid in a storage tank after receiving the signal, a connecting pipe conveys the grinding liquid to the inner wall of a filling device, a first drainage plate guides the grinding liquid, when a weighing spring detects that the top of a weighing plate does not have weight, a signal is sent to an inductor, and a signal is sent to a first electromagnetic valve through the inductor; the grinding fluid at the top of the weighing plate flows into the outer wall of the second drainage plate, the second drainage plate guides the grinding fluid to the inner wall of the fluid outlet pipe and conveys the grinding fluid to the inner wall of the filling bottle, and therefore the automatic weighing function is achieved.