CN103152687A - Loudspeaker and sound pressure detection device based on wireless network - Google Patents
Loudspeaker and sound pressure detection device based on wireless network Download PDFInfo
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Abstract
The invention discloses a loudspeaker and sound pressure detection device based on a wireless network, and the loudspeaker and sound pressure detection device comprises one or more loudspeaker detection units, one or more sound pressure detection unit and a sound pressure detection controller; the sound pressure detection controller is respectively connected with the loudspeaker detection unit and the sound pressure detection unit through the wireless network; and the loudspeaker detection unit and the sound pressure detection unit distribute real-time sound pressure information to the sound pressure detection controller after digitalizing the acquired sound pressure of a sound field. Since an embedded processor is used for converting the sound pressure signal from an analog signal to a digital signal and transmits the signal to a regional center through the wireless network, real-time distributive sound pressure detection capacity is provided for an audio system, so that the audio system with more flexibility, stronger function, higher reliability and simpler management can be realized, and the loudspeaker and sound pressure detection device is particularly remarkable in a medium-large audio system.
Description
Technical field
The present invention relates to electronic technology field, particularly a kind of loud speaker and acoustic pressure checkout gear based on wireless network.
Background technology
Known loud speaker detects or the audio system checkout gear, usually output current, the voltage of audio system final power amplifier only detected, although thereby accomplished continuous, real-time detectability, and has an interface integrated with audio system, whether but the circuit that can detect at most loud speaker connects normal, can not detect the actual acoustic pressure output of loud speaker.And known acoustic pressure checkout gear adopts artificial detection, discontinuous separately usually, does not possess the network concatenation ability, is difficult to whole audio system integrated.
Along with the high speed development of wireless Internet of Things, wireless senser has obtained large-scale popularization and use in a plurality of fields.Wireless senser has following characteristics: have one and support IEE802.15.4 standard slow network interface, the flush bonding processor with the transducer cooperating, small and exquisite volume and cheap cost, extremely low power consumption.
In an audio system, number of loudspeakers is maximum usually, and widely distributed, and the detection system of very low cost and power consumption could successfully detect loud speaker, and is accepted by the user.And the acoustic pressure of each loudspeaker unit only can be detected continuously, in real time, can intactly detect the state of an audio system.
In view of this, how to utilize that wireless senser is realized more comprehensively, more direct audio system detects becomes one of present developing direction.
Summary of the invention
The object of the present invention is to provide loud speaker and acoustic pressure checkout gear based on wireless network.Incomplete to solve Loudspeaker Measuring System detectability of the prior art, the integrated hard problem of acoustic pressure checkout gear.
In order to achieve the above object, the present invention has taked following technical scheme:
A kind of loud speaker and acoustic pressure checkout gear based on wireless network wherein, comprising:
One or more loud speaker detecting unit, one or more acoustic pressure detecting unit and acoustic pressure detect controller; Described acoustic pressure detects controller and connects loud speaker detecting unit and acoustic pressure detecting unit by the IEE802.15.4 wireless network respectively; After described loud speaker detecting unit and acoustic pressure detecting unit obtained sound field acoustic pressure and digitlization, the acoustic pressure information real-time by the distribution of IEE802.15.4 wireless network detected controller to described acoustic pressure.
Described loud speaker and acoustic pressure checkout gear based on wireless network, wherein, described loud speaker detecting unit comprises flush bonding processor, pick-up, ultrasonic sensor and a support IEE802.15.4 standard wireless network interface; Described flush bonding processor connects pick-up, ultrasonic sensor and radio network interface.
Described loud speaker and acoustic pressure checkout gear based on wireless network, wherein, described loud speaker detecting unit is arranged on loud speaker, and power end is connected on the audio driven circuit of loud speaker, be used for by the power taking of described audio driven circuit, and use the low leakage capacitor storage of electrical energy.
Described loud speaker and acoustic pressure checkout gear based on wireless network, wherein, described acoustic pressure detecting unit comprises the radio network interface of flush bonding processor, pick-up and support IEE802.15.4 standard; Described flush bonding processor connects pick-up and radio network interface.
Described loud speaker and acoustic pressure checkout gear based on wireless network, wherein, described acoustic pressure detection controller comprises: radio network interface and the second network interface of flush bonding processor, at least one road audio input interface and one road audio output interface, support IEE802.15.4 standard; Described flush bonding processor connects respectively audio input interface, audio output interface, radio network interface and second network interface.
Described loud speaker and acoustic pressure checkout gear based on wireless network, wherein, described second network interface is WIFI network interface or Ethernet interface.
Beneficial effect:
Acoustic pressure and loud speaker checkout gear based on wireless senser of the present invention, and adopt the low-speed wireless network technology based on IEE802.15.4 to form the measurement network, because IEE802.15.4 slow network cost is low, power consumption is extremely low, thereby the loud speaker detecting unit can be built in loudspeaker unit.At each regional area, an acoustic pressure is set and detects controller, this controller provides Ethernet or WIFI network at a high speed, and powerful disposal ability, has solved simultaneously the wireless senser transmission speed low, the problem of computing capability deficiency.Thereby can realize the coordination of large-scale audio system, and senior complex control implementation of strategies.Compared to conventional art, the present invention has more comprehensively, more direct audio system detectability, stronger flexibility, and more function, and possess similar cost and volume.
Description of drawings
Fig. 1 the present invention is based on the acoustic pressure of wireless network and system's connection layout that loud speaker detects dress.
Fig. 2 is the audio system idle condition overhaul flow chart of example part of the present invention.
Fig. 3 is the audio system broadcast state-detection flow chart of example part of the present invention.
Fig. 4 is that the acoustic pressure of example part of the present invention detects transmission flow figure.
Embodiment
For making purpose of the present invention, technical scheme and effect clearer, clear and definite, the present invention is described in more detail referring to the accompanying drawing examples.
See also Fig. 1, it is system's connection layout that the acoustic pressure based on wireless network of the present invention and loud speaker detect dress.As shown in the figure, described loud speaker and acoustic pressure checkout gear based on wireless network comprises:
In one or more loud speaker detecting unit 100, one or more acoustic pressure detecting unit 200 and acoustic pressure detection controller 300(figure, the number of loud speaker detecting unit 100 and one or more acoustic pressure detecting unit 200 only is used for illustrating); Described acoustic pressure detects controller 300 and connects loud speaker detecting unit 100 and acoustic pressure detecting unit 200 by the IEE802.15.4 wireless network respectively; After described loud speaker detecting unit 100 and acoustic pressure detecting unit 200 obtained sound field acoustic pressure and digitlization, the acoustic pressure information real-time by the distribution of IEE802.15.4 wireless network detected controller 300 to described acoustic pressure.
Specifically, in an embodiment of the present invention, described wireless network is the low-speed wireless network based on the IEEE802.15.4 standard, and compares based on the fast wireless network of IEEE802.11 standard, its power consumption is only one of percentage of the latter, and cost is only the latter's 1/10th.
Described loud speaker detecting unit 100 is for detection of loud speaker, and in an embodiment of the present invention, it comprises the radio network interface of flush bonding processor, pick-up, ultrasonic sensor and a support IEE802.15.4 standard; Described flush bonding processor connects pick-up, ultrasonic sensor and radio network interface.Described acoustic pressure detecting unit 200 is used for carrying out acoustic pressure and detects.In the present embodiment, described loud speaker detecting unit comprises the radio network interface of flush bonding processor, pick-up, ultrasonic sensor and a support IEE802.15.4 standard; Described flush bonding processor connects pick-up, ultrasonic sensor and radio network interface.
Loud speaker detecting unit 100 and acoustic pressure detecting unit 200 all can be divided into four kinds of operating states: battery saving mode, only have timer work, and electric current is less than three microamperes; Gather acoustic pressure, start ADC and gather acoustic pressure, electric current is less than five milliamperes; Monitor controller, the open wireless receiving interface checks whether acoustic pressure detection controller has order or configuration distributing, and electric current is less than 30 milliamperes; Send data, the acoustic pressure that collects is sent by wave point, electric current is less than 40 milliamperes.(with reference to many integrated circuit schemes, getting maximum).
For reach the power consumption that reduces detecting unit as far as possible, we carry out following design: using acoustic pressure to detect controller as the unique FFD (full-function device) in a wireless low-speed local area network network, is also telegon simultaneously.All loud speaker detecting units and acoustic pressure detecting unit are all RFD (simplifying function device), and are connected to acoustic pressure detection controller by Star topology.That is to say, all detecting units mutually can not communication, can only detect the controller communication with acoustic pressure, and local wireless low-speed local area network network detects controller as telegon unified management channel by acoustic pressure.
At first, acoustic pressure detects controller and adopts the super frame of IEEE802.15.4 and enable beacon, be to guarantee low-power consumption and fixing time delay, our super frame does not have the CAP(contention access stage), only have fixing time slot stage of CFP() and the INACTIVE(communication dormant stage) two stages.According to IEEE802.15.4, each detecting unit has globally unique 64 bit address, and this address is configured to acoustic pressure by the user by SDK and detects controller.According to this 64 bit address, acoustic pressure detects controller and is one of its distribution local area address, and partly announces detecting unit by the beacon of super frame.
In the CFP stage, it is that each detecting unit in local low-speed local area network network is reserved a fixing time slot that acoustic pressure detects controller, and in this time slot, corresponding detecting unit starts wireless transmission, and own acoustic pressure data are sent to acoustic pressure detection controller.Like this, all detecting units only at the time slot of oneself, enter the wireless transmission pattern, close at once whole wireless (comprising reception) after emission is completed; Except in the CFP stage, all the other stage wave points all are in closed condition, have guaranteed that power consumption is minimum.Only have when acquisition interval arrives temporarily to enter drainage pattern, can accomplish easily, the drainage pattern time is less than 10%; The duration ratio of CFP in super frame is less than 5%, and the average current of detecting unit can be less than 1mA like this, and under common 3.3V power supply environment, power is less than 3.3mW.
The general power of loudspeaker unit in audio system is greater than 3W, and the driving voltage peak value is greater than 4.5V.Because guarantee the real-time detection of audio system, even when not having audio frequency to play, still there is intermittent test sine wave drive electric current to pass through.And the loud speaker detecting unit is not having audio frequency or test and excitation by during loud speaker, in acoustic pressure detection controller adjustment super frame, the ratio of CFP and INACTIVE, make the CFP accounting less, closes simultaneously the acquisition function of detecting unit, make it be in for a long time battery saving mode, electric current is less than three microamperes.When having audio frequency or test and excitation signal to send into loud speaker, only need a common low leakage capacitor storage of electrical energy, from driving the signals collecting electric energy, just can satisfy the job requirement of loud speaker detecting unit fully, thereby need not extra electric power system.
Like this, loud speaker detecting unit volume is small and exquisite, and is with low cost, and need not to power and the additional wires of transfer of data, can be embedded in the loud speaker detecting unit when loud speaker is produced fully, user installation and use and conventional loudspeakers are in full accord, and cost differs also not obvious.As long as the additional configuration acoustic pressure can obtain a real-time complete audio frequency acoustic pressure detection system after detecting controller fast.
The acoustic pressure detecting unit needs to require to install according to the ownership goal sound field, powers without the common batteries that can adopt of condition of power supply; With good conditionsi, indoorly can use power taking nearby, outdoorly can adopt the solar panel power supply.Because the acoustic pressure detecting unit only just enters operating state when the system plays audio frequency, the plenty of time is in power down mode, and electric current is less than 3 microamperes, and its power consumption will be starkly lower than the loud speaker detecting unit.Even use the common batteries power supply, also can work really long days.
Described acoustic pressure detects controller, this unit has a flush bonding processor, the input of at least one road audio frequency and one road audio output interface, a low-speed wireless network interface of supporting the IEE802.15.4 standard, Ethernet or WIFI network interface use the AC220V Alternating Current Power Supply.Acoustic pressure detects controller as the manager of regional sound field, gathers the data of loud speaker detecting unit and acoustic pressure detecting unit by the low-speed wireless network interface, judgement audio system state, and set according to the user and automatically adjust.By Ethernet interface at a high speed, it can also further be delivered to these data acoustic pressure detection system SDK, for senior monitoring or the control software application of system; Receive simultaneously the control command of upper layer software (applications) from acoustic pressure detection system SDK, change the setup parameter of Target Sound Field.
Described acoustic pressure detects controller, has the loud speaker measuring ability, and it has one road audio frequency input, receives the audio frequency of local audio system, and has the audio detection ability.System is in idle condition when local audio, and when namely not having audio frequency to play, it produces the sine wave signal of a 28KHZ-40KHZ automatically, every the fixed time interval, through power amplifier, outputs to loudspeaker unit by audio output interface.The loud speaker detecting unit detects loud speaker output acoustic pressure by ultrasonic sensor, and data are sent to acoustic pressure detection controller.When system carried out the audio frequency broadcast, acoustic pressure detected controller and activates all loud speaker detecting units and acoustic pressure detecting unit, detected the acoustic pressure of each point.Like this, neither affect the user and normally use, we have also guaranteed the complete, continuous of whole audio system and have detected in real time; And loud speaker detecting unit and acoustic pressure detecting unit all are in resting state fully when there is no audio frequency, have also greatly saved the energy.
In order to facilitate the use of domestic consumer, described loud speaker and acoustic pressure checkout gear based on wireless network also comprises: one is equipped with the background server of acoustic pressure detection system SDK; Described background server connects acoustic pressure by the second network interface and detects controller.Wherein, acoustic pressure detection system SDK provides the api function storehouse based on C, C++, JAVA language, is used for reading the real time data that acoustic pressure detects controller, also can configure the parameter that acoustic pressure detects controller, in order to complete the adjustment to sound field.Can be arranged in ordinary individual's computer or smart machine, be convenient to the audio system that the third party builds own characteristic.
The present invention also provides a preferred embodiment, in the present embodiment:
The loud speaker detecting unit adopts the semi-conductive CC2530F256 of American TI as flush bonding processor, the ultrasonic sensor of a 40Khz, an ordinary audio pick-up head.
The acoustic pressure detecting unit adopts the semi-conductive CC2530F256 of American TI as flush bonding processor, an ordinary audio pick-up head.
Acoustic pressure detects controller and adopts the semi-conductive LPC1758 of NXP as main control processor, is connected to the wireless processor of a CC2530F256 by the UART interface, by the external a slice LAN8720A of RMII interface as the Ethernet interface.Connect a slice PCM3000 by the I2S interface and realize audio frequency input digitlization, and digital audio is simulated.Acoustic pressure detects controller as the unique FFD in slow network PAN (personal area network), serves as the telegon of PAN, and all detecting units are connected to acoustic pressure by Star topology and detect controller.Also namely, detecting unit each other can not communication, and detecting unit only detects controller with acoustic pressure and carries out communication.And adopt the IEEE802.15.4 super frame that beacon is arranged, carry out communication management.
The audio frequency broadcast is being arranged or processing loud speaker pumping signal test period, adopt the super frame length of 125ms, because our data volume is very little, each data packet length that we formulate is lower than 20 bytes, so stipulate that each GTS timeslice length is less than 25 byte transmission times, be that under the 250KB transmission speed, duration less than 0.8 millisecond, is also that CFP phases-time length equals:
Please continue to consult Fig. 2, Fig. 3 and Fig. 4, acoustic pressure detects controller to be had dual mode and judges whether the local audio system is idle.The one, by the audio frequency of PCM3000 Real-time Collection local audio input interface, when the voice data energy density that detects during lower than set point, think that the local audio system is in idle condition; The 2nd, detect from the acoustic pressure system supervisory instruction that SDK receives higher level's audio system by the Ethernet interface, when receiving the instruction that enters idle condition, think that the local audio system is in idle condition.
After the local audio system entered idle condition, acoustic pressure detected controller and specifies affiliated acoustic pressure detecting unit to enter the collection halted state, to advance an energy savings; Loud speaker detecting unit under specifying enters the ultrasound examination state, from AD port processing acoustic pressure corresponding to ultrasonic sensor.Acoustic pressure detects controller every 1 hour (user can set) transmission 40KHZ sinusoidal audio in 5 second, be about to the own inner 40KHZ pure tone audio data that generates and send to PCM3000, thereby produce the sine wave signal of a 40KHZ at audio output port, system is delivered to loudspeaker unit through local audio.And in pumping signal is sent first super frame beacon in 1 second, set the loud speaker detecting unit and enter ultrasonic waves collecting work state, inform that simultaneously the duration of next super frame changes 125ms into, until pumping signal finishes.
When acoustic pressure detects voice data energy density that controller detects the local audio input interface greater than set point or receives higher level's audio system when entering the instruction of operating state, the local audio system enters operating state.Acoustic pressure detects the transmission that controller stops 40KHZ pure tone audio data immediately, with the audio frequency access local audio output interface of local audio input interface; Then after 1 second super frame beacon of first arrival in, set detecting unit and enter the audio collection operating state, inform that simultaneously the duration of next super frame changes 125ms into, until pumping signal finishes.
CC2530 has the AD converter of 8 passage 12BIT, and we adopt 8BIT, and the sample rate of 8Khz is namely used Interruption, starts AD converter every 125 microseconds, waits for that AD converts, and the audio frequency that reads 8BIT in the interruption of AD conversion picks up the signal of telecommunication.So then, calculate continuous acoustic pressure (time average) according to the definition of IEC61672:2003, as shown in the formula:
In order to obtain system response time faster, computing time, constant was the fast continuous acoustic pressure of 125ms simultaneously for we, also namely calculated the average sound pressure of 1000 sampled values; With time constant be the continuous acoustic pressure at a slow speed in 1 second, the also i.e. average sound pressure of 8000 sampled values.And can be set by the user, according to people's ear, the sensitivity curve of sound frequency is adjusted, support three kinds of C weighting curve, A weighting curve and Z weighting curves (not adjusting), acquiescence adopts the compensation of Z weighting curve, be subject to the computing capability of CC2530, weight is adjusted in acoustic pressure detection controller carries out.
After receiving that acoustic pressure detects the startup acquisition instructions of controller, all detecting units begin to carry out collection and the calculating of acoustic pressure.Every the 125ms time interval, acoustic pressure detects controller and sends a super frame, and in the CFP stage of super frame, each detecting unit has the timeslice of a correspondence.In this timeslice, loud speaker detecting unit or acoustic pressure detecting unit, with quick continuously sound pressure level and at a slow speed continuously sound pressure level report acoustic pressure detection controller by the 2.4G wireless communication interface of CC2530.In the INCATIVE stage of this super frame, all detecting units are closed wireless communication interface with saves energy.
The built-in 2.4G wireless transceiver of CC2530 is supported the IEEE802.15.4 wireless network standards, has 256KB FLASH, the 8KB internal memory.We select the CONTIKI embedded OS as embedded system, use above-mentioned super frame way to manage to carry out communication management.Like this, satisfied on the one hand the least in power-consuming of detecting unit, guaranteed also on the one hand that in addition the time delay that detects is less, real-time is very high.
The LPC1758 that acoustic pressure detects the controller employing operates in 80MHZ, is the risc processor of the CORTEX-M3 type of 32, has powerful disposal ability.It carries out exchanges data by the wireless communication module of UART interface and an embedded CC2530, and the data that send from loud speaker detecting unit or acoustic pressure detecting unit receive by CC2530, then send to LPC1758 by the serial ports of CC2530; The control command of LPC1758 sends to CC2530 by serial ports, and sends to loud speaker detecting unit or the acoustic pressure detecting unit of appointment by CC2530.
Demarcate the phase in the acoustic pressure detection system, acoustic pressure detect controller by the user the background acoustic pressure than circlet border condition under, play the multistage standard audio.Acoustic pressure detects controller according to the correlation of local audio input data and loud speaker detecting unit and acoustic pressure detecting unit, as shown in the formula:
By the different time-delay of iteration, the time-delay that maximum correlation coefficient is corresponding is exactly the measurement time-delay of corresponding loud speaker detecting unit and acoustic pressure detecting unit.After having measured the measurement time-delay of individual unit, we can also calculate the gain of acquisition system easily.
Acoustic pressure detects controller, constantly gathers the voice data of local audio input interface by PCM3000, according to built-in standard loudspeakers model, is respectively each loud speaker detecting unit and calculates sound pressure level, and add the timestamp of oneself.。According to time-delay and the gain of demarcating, when two loud speaker sound pressure level errors corresponding to timestamp surpass or during lower than preset value, acoustic pressure detects controller and sends an alert data bag to acoustic pressure detection system SDK, prompting local audio system may break down.
Adjust function if started automatic acoustic pressure, acoustic pressure detects controller can gather the acoustic pressure detected value of acoustic pressure detecting unit, and asks for the consecutive mean sound pressure level according to the time average algorithm.According to measurement time-delay and gain that timing signal obtains, acoustic pressure detects the acoustic pressure that controller can be predicted this acoustic pressure detecting unit.Remove the local audio system output acoustic pressure of prediction in the consecutive mean sound pressure level, be the background acoustic pressure.
According to the background acoustic pressure of calculating gained, according to the adjustment strategy of user preset, adjust the gain of local audio system, the signal to noise ratio requirement of setting to satisfy the user.
Because acoustic pressure detects Ethernet or WIFI network interface that controller has a high speed, it is very little from the time-delay that acoustic pressure detection controller is delivered to acoustic pressure detection system SDK that acoustic pressure detects packet, usually less than 5ms.Thereby, if the adjustment algorithm that the user need to have by oneself also can the automatic acoustic pressure adjustment programme of designed, designed, detect controller background extraction acoustic pressure by acoustic pressure detection system SDK from acoustic pressure, after calculating rational audio system gain, send gain setting and detect controller to acoustic pressure.
In sum, the present invention has been owing to having adopted wireless sensor technology that loud speaker and sound field acoustic pressure are measured in real time, and by the low-speed wireless network, the data that collect is sent to acoustic pressure and detects controller.Acoustic pressure detects controller and has higher computing capability, its detection is also more complete more comprehensively, further, an acoustic pressure detection system SDK provides a unified approach that obtains data and control the acoustic pressure detection system for third party developer, also is convenient to different customization and completes unique acoustic pressure detection and adjust strategy.Along with the further popularization of wireless Internet of Things, the cost of loud speaker detecting unit and acoustic pressure detecting unit, volume can constantly reduce, and handling property and reliability can improve constantly.
Be understandable that, for those of ordinary skills, can be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, and all these changes or replacement all should belong to the protection range of the appended claim of the present invention.
Claims (7)
1. loud speaker and acoustic pressure checkout gear based on a wireless network, is characterized in that, comprising:
One or more loud speaker detecting unit, one or more acoustic pressure detecting unit and acoustic pressure detect controller; Described acoustic pressure detects controller and connects loud speaker detecting unit and acoustic pressure detecting unit by wireless network respectively; After described loud speaker detecting unit and acoustic pressure detecting unit obtain sound field acoustic pressure and digitlization, distribute real-time acoustic pressure information by wireless network and detect controller to described acoustic pressure.
2. according to claim 1 based on loud speaker and the acoustic pressure checkout gear of wireless network, it is characterized in that, described loud speaker detecting unit comprises the radio network interface of flush bonding processor, pick-up, ultrasonic sensor and a support IEE802.15.4 standard; Described flush bonding processor connects pick-up, ultrasonic sensor and radio network interface.
3. according to claim 1 based on loud speaker and the acoustic pressure checkout gear of wireless network, it is characterized in that, described loud speaker detecting unit is arranged on loud speaker, and power end is connected on the audio driven circuit of loud speaker, be used for by the power taking of described audio driven circuit, and use the low leakage capacitor storage of electrical energy.
4. according to claim 1 based on loud speaker and the acoustic pressure checkout gear of wireless network, it is characterized in that, described acoustic pressure detecting unit comprises the radio network interface of flush bonding processor, pick-up and support IEE802.15.4 standard; Described flush bonding processor connects pick-up and radio network interface.
5. according to claim 1 based on loud speaker and the acoustic pressure checkout gear of wireless network, it is characterized in that, described acoustic pressure detects controller and comprises: radio network interface and the second network interface of flush bonding processor, at least one road audio input interface and one road audio output interface, support IEE802.15.4 standard; Described flush bonding processor connects respectively audio input interface, audio output interface, radio network interface and second network interface.
6. according to claim 5 based on loud speaker and the acoustic pressure checkout gear of wireless network, it is characterized in that, described second network interface is WIFI network interface or Ethernet interface.
7. according to claim 5 based on loud speaker and the acoustic pressure checkout gear of wireless network, it is characterized in that, also comprise: one is equipped with the background server of acoustic pressure detection system SDK; Described background server connects acoustic pressure by the second network interface and detects controller.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105814912A (en) * | 2013-12-06 | 2016-07-27 | 夏普株式会社 | Audio wireless transmission system, speaker device, and source device |
| CN110996243A (en) * | 2019-12-16 | 2020-04-10 | 广州市迪士普音响科技有限公司 | Loudspeaker on-line detection system |
| CN111629316A (en) * | 2020-05-15 | 2020-09-04 | 广东思派康电子科技有限公司 | Monitoring method and monitoring system for continuous playing test of sound box |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060135358A (en) * | 2005-06-24 | 2006-12-29 | 엘지전자 주식회사 | Sound volume level control apparatus and method for mobile communication device |
| CN201781548U (en) * | 2010-05-26 | 2011-03-30 | 康佳集团股份有限公司 | Set-top box with intelligent volume adjustability |
| CN201926500U (en) * | 2010-11-16 | 2011-08-10 | 福建植桐电子科技有限公司 | Ultra low power consumption digital sound level meter based on WIFI (Wireless Fidelity) |
| CN203136165U (en) * | 2013-03-19 | 2013-08-14 | 张巍 | Loudspeaker and sound pressure detection device based on wireless network |
-
2013
- 2013-03-19 CN CN201310087931.5A patent/CN103152687B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060135358A (en) * | 2005-06-24 | 2006-12-29 | 엘지전자 주식회사 | Sound volume level control apparatus and method for mobile communication device |
| CN201781548U (en) * | 2010-05-26 | 2011-03-30 | 康佳集团股份有限公司 | Set-top box with intelligent volume adjustability |
| CN201926500U (en) * | 2010-11-16 | 2011-08-10 | 福建植桐电子科技有限公司 | Ultra low power consumption digital sound level meter based on WIFI (Wireless Fidelity) |
| CN203136165U (en) * | 2013-03-19 | 2013-08-14 | 张巍 | Loudspeaker and sound pressure detection device based on wireless network |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105814912A (en) * | 2013-12-06 | 2016-07-27 | 夏普株式会社 | Audio wireless transmission system, speaker device, and source device |
| CN105814912B (en) * | 2013-12-06 | 2019-06-18 | 夏普株式会社 | Sound wireless transmitting system, loudspeaking equipment and source device |
| CN110996243A (en) * | 2019-12-16 | 2020-04-10 | 广州市迪士普音响科技有限公司 | Loudspeaker on-line detection system |
| CN111629316A (en) * | 2020-05-15 | 2020-09-04 | 广东思派康电子科技有限公司 | Monitoring method and monitoring system for continuous playing test of sound box |
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| CN103152687B (en) | 2015-11-18 |
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