Remote square dance sound noise control system
By embedding a volume control module inside the speaker and using a remote control terminal to set noise thresholds and cut off the power supply circuit, the problem of difficulty in assigning responsibility in traditional square dance noise control has been solved, achieving precise and automated noise management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHONGQING CHUANGMI TECH GRP CO LTD
- Filing Date
- 2026-04-16
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional square dance noise control solutions cannot accurately identify excessive sound levels, leading to a lack of accountability, inability to achieve precise control, and reliance on manpower, making it difficult to achieve 24/7 automated management.
A volume control module is embedded in the speaker. A noise threshold can be set through a remote control terminal. The speaker detects the volume and compares it with the threshold. If the volume exceeds the threshold, the power supply circuit of the speaker motherboard is cut off. This enables precise control of individual speakers and supports noise management based on regional and temporal differences.
It achieves precise noise location and fair control, reduces reliance on human resources, supports 24/7 automated management, and improves governance efficiency and visualization capabilities.
Smart Images
Figure CN122248314A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of urban noise management technology, and in particular to a remote square dance audio noise control system. Background Technology
[0002] Traditional methods for controlling noise from square dancing involve installing one or more decibel monitoring devices (such as outdoor sound level meters) around the perimeter or center of the square to measure the equivalent continuous A-weighted sound level at the monitoring points. The electrical or digital signals collected by these devices are then processed (e.g., unit conversion, threshold comparison) to obtain the current decibel level, which is then displayed in real-time on an LED screen with threshold alarms. However, this current decibel level represents the total ambient noise at the monitoring point, making it difficult for law enforcement to accurately determine which group's sound system is exceeding the limit. When the LED screen alarms, all groups may be considered responsible, leading to finger-pointing and a "mass exoneration" effect, hindering accountability and precise control. Summary of the Invention
[0003] This application aims to at least solve the technical problems existing in the prior art and provide a remote square dance audio noise control system.
[0004] This application provides a remote square dance audio noise control system, the system comprising: One or more speakers, each with an embedded volume control module, are located in one or more monitoring areas. The remote control terminal determines the noise threshold of the monitoring area and sends the noise threshold to the embedded volume control module of the speaker in the monitoring area. After receiving the noise threshold, the embedded volume control module in the monitoring area detects the noise volume inside the speaker. When the noise volume inside the speaker is greater than or equal to the noise threshold, the power supply circuit of the speaker motherboard of the speaker where the embedded volume control module is located is cut off.
[0005] The above technical solution involves an embedded volume control module installed in the speaker that communicates with a remote control terminal. Upon receiving a noise threshold from the remote control terminal, the module detects the internal noise level of the speaker and compares it with the noise threshold. If the internal noise level is greater than or equal to the noise threshold, the power supply circuit of the speaker's mainboard is shut off. If the internal noise level is less than the noise threshold, the mainboard is kept powered normally. By setting a noise threshold for the monitored area through the remote control terminal, all speakers within the monitored area receive a uniform noise threshold. As long as the embedded volume control module detects that the internal noise level is greater than or equal to the noise threshold, its mainboard will be shut off. However, if the internal noise level of other speakers in the monitored area is less than the noise threshold, the mainboard will not be shut off. This allows for noise localization and control down to the individual speaker level, achieving precise noise control and fairness. Furthermore, the remote control terminal can set different noise thresholds for different monitored areas, meeting the needs of regionally differentiated noise control. In addition, it reduces reliance on manpower and enables 24 / 7 uninterrupted automated control.
[0006] In a preferred embodiment, when the implanted volume control module detects that the internal noise volume of the speaker is greater than or equal to the noise threshold M times, the power supply circuit of the speaker motherboard where the implanted volume control module is located is cut off by a fuse, where M represents the number of times the fuse is cut off and M is a positive integer.
[0007] The above technical solution: the power supply circuit of the speaker motherboard where the embedded volume control module is located is only cut off when the internal noise volume of the speaker is detected to be greater than or equal to the noise threshold for M consecutive times, which can avoid the erroneous power supply failure caused by a sudden increase in volume at a certain moment.
[0008] In a preferred embodiment, while the power supply circuit of the speaker motherboard of the speaker where the implanted volume control module is located is cut off, the implanted volume control module reports the cut-off event to the remote management terminal. The cut-off event includes the cut-off time, the internal noise volume of the speaker at the time of cut-off, and the noise threshold at the time of cut-off. After receiving and storing the cut-off event, the remote management terminal accumulates the number of times the speaker where the implanted volume control module is located has cut off.
[0009] The above technical solution facilitates remote management and control to assess the noise control effect of the monitored area based on the circuit breaker events and the cumulative number of circuit breaker events in the audio system, and to analyze the noise patterns of the monitored area.
[0010] In a preferred embodiment, the remote control terminal determines the noise threshold of the monitored area by: determining the noise threshold of the monitored area based on the current time.
[0011] The above technical solution allows for lowering the noise threshold during special periods (such as the National College Entrance Examination) and at night, reflecting the time-specific differences and rationality of noise control.
[0012] In a preferred embodiment, during speaker operation, the embedded volume control module uploads timestamped internal noise volume data of the speakers to a remote control terminal in real time or periodically. The remote control terminal compiles the timestamped internal noise volume data of all speakers in each monitoring area into historical noise data for that monitoring area. The remote control terminal determines the noise threshold of the monitoring area by: comparing the current time with the occurrence time of historical noise complaint events in the monitoring area, determining the occurrence time of the historical noise complaint event with the best time match, and recording it as the target occurrence time; extracting the internal noise volume of the speakers corresponding to the timestamp that best matches the target occurrence time from the historical noise data of the monitoring area, and using the extracted internal noise volume of the speakers as the noise threshold of the monitoring area.
[0013] The above technical solution determines the noise threshold for the current time based on historical noise complaint events in the monitored area. This noise threshold reflects the personalized noise control requirements of the monitored area and can improve control efficiency.
[0014] In a preferred embodiment, after the implanted volume control module melts the power supply circuit of the speaker motherboard, if the implanted volume control module detects that the internal noise volume of the speaker is less than the noise threshold N times, then the power supply circuit of the speaker motherboard is turned on. N represents the number of recovery judgments, and N is a positive integer.
[0015] The above technical solution involves connecting the power supply circuit of the speaker motherboard only after N consecutive tests confirm that the internal noise volume of the speaker is less than the noise threshold. This can help determine if the fuse control function of the embedded volume control module has failed. If the internal noise volume of the speaker is not less than the noise threshold more than once in N consecutive tests, it indicates an abnormality and an abnormal event needs to be sent to the remote control terminal.
[0016] In a preferred embodiment, the implantable volume control module includes a motherboard and a volume decibel detection unit. The motherboard includes: an audio connection portion, comprising two switch terminals for series connection to the power supply circuit of the audio motherboard, a power supply terminal for connection to the power supply circuit of the audio motherboard, and a common ground terminal for ground connection to the audio motherboard; wherein, with the current flow direction in the power supply circuit of the audio motherboard as a reference direction, the power supply terminal is located before the two switch terminals; an electronically controlled switch circuit, with its two switch terminals respectively connected to the two switch terminals; a control unit, with its first signal input terminal connected to the output terminal of the volume decibel detection unit, and its first signal output terminal connected to the control terminal of the electronically controlled switch circuit; one or more communication units, which communicate with the control unit; and a power supply unit, which supplies power to the electronically controlled switch circuit, the control unit, and the communication unit, with its power supply terminal connected to the input terminal of the power supply unit.
[0017] The above technical solution: The implanted volume control module only makes minor improvements to the power supply circuit of the speaker motherboard, and uses the power supply of the speaker motherboard to power the implanted volume control module. The implanted volume control module does not require a separate power supply, which can effectively control the noise of square dancing, and the deployment cost is low.
[0018] In a preferred embodiment, the motherboard is further provided with a positioning unit, which is connected to the control unit.
[0019] The above technical solution enables the remote control terminal to obtain the location information of the audio equipment through the positioning unit, thereby improving control efficiency.
[0020] In a preferred embodiment, the first signal input terminal of the control unit is connected to the output terminal of the volume decibel detection unit via a flexible circuit.
[0021] The above technical solution utilizes the flexibility of the flexible circuit to adjust the installation position of the volume decibel detection unit inside the speaker, keeping it away from the speaker casing, speaker, etc., thus avoiding interference from speaker casing vibration, speaker sound pressure fluctuations, etc., and reducing decibel measurement errors.
[0022] In a preferred embodiment, the power supply unit includes a DC-DC boost circuit and a voltage regulator circuit. The input terminal of the DC-DC boost circuit is connected to the power supply terminal, and the output terminal of the DC-DC boost circuit is connected to the input terminal of the voltage regulator circuit.
[0023] The above technical solution: The power supply unit adopts a power supply method of first boosting and then bucking, which can improve the stability of the power supply and voltage conversion efficiency of each unit in the embedded volume control module. Attached Figure Description
[0024] Figure 1This is a system block diagram of a remote square dance audio noise control system in a preferred embodiment; Figure 2 This is a connection diagram of an embedded volume control module connected to a speaker in a preferred embodiment. Figure 3 This is a schematic diagram of the structure of an implanted volume control module in a preferred embodiment; Figure 4 This is a partial circuit diagram of the control unit in a preferred embodiment; Figure 5 This is a circuit diagram of a cellular communication unit in a preferred embodiment; Figure 6 This is a schematic diagram of an electrically controlled switch circuit in a preferred embodiment; Figure 7 This is a circuit diagram of a volume decibel detection unit in a preferred embodiment; Figure 8 This is a schematic diagram of the overall structure of the power supply unit in a preferred embodiment; Figure 9 This is a schematic diagram of a DC-DC boost circuit structure for a power supply unit in a preferred embodiment; Figure 10 This is a schematic diagram of the first voltage regulator sub-circuit of the power supply unit in a preferred embodiment; Figure 11 This is a schematic diagram of the linear voltage regulator circuit structure of the power supply unit in a preferred embodiment; Figure 12 This is a schematic diagram of the switching regulator circuit structure of the power supply unit in a preferred embodiment. Detailed Implementation
[0025] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0026] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0027] In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "linking" should be interpreted broadly. "Linking" refers to wired or wireless connections, and its specific meaning can be understood in conjunction with semantics.
[0028] The existing sound system used for square dancing includes an AC power interface, an AC-to-DC switching power supply, a mainboard, and speakers. The AC power signal is input through the AC power interface and converted into a DC power signal by the switching power supply. The DC power signal is then output from the AC-DC converter of the switching power supply to the mainboard. The mainboard contains power management circuitry (including DC-DC boost circuitry and multiple DC-DC buck circuitry), a main control chip (such as an 8-bit or 32-bit microcontroller) and its peripheral circuitry, and a power amplifier and its peripheral circuitry. The power management circuitry receives the DC power signal from the AC-DC converter of the switching power supply and converts it into DC power signals of different voltages to power different components on the mainboard. The main control chip and its peripheral circuitry input audio control signals to the power amplifier, which in turn sends audio drive signals to the speakers, causing the speakers to produce sound. Please see [link to relevant documentation]. Figure 2 The power supply loop formed between the AC-DC conversion output terminal of the switching power supply and the input terminal of the power management circuit on the audio motherboard is called the power supply loop of the audio motherboard.
[0029] Some audio systems, in addition to having an AC power interface, also have a rechargeable battery. The mainboard of these systems includes a charging management chip and its peripheral circuitry. The main control chip controls the charging management chip to charge the battery. The DC power signal output from the AC-DC converter of the switching power supply is sent to the charging management chip and its peripheral circuitry. The charging management chip and its peripheral circuitry then output a DC power signal to the input of the power management circuit and to charge the battery. Similarly, please see... Figure 2 The power supply loop formed between the AC-DC conversion output terminal of the switching power supply and the input terminal of the power management circuit on the audio motherboard is called the power supply loop of the audio motherboard.
[0030] Some audio systems, in addition to having an AC power interface, can also accommodate non-rechargeable batteries. The battery's voltage output terminal (i.e., the battery terminal) and the AC-DC conversion output terminal of the switching power supply are each connected to the input terminal of the power management circuit on the audio system's mainboard via a diode. Both diodes have their cathodes connected to the input terminal of the power management circuit. Utilizing the unidirectional conduction characteristic of the diodes, an "OR" operation is performed between the battery voltage and the AC-DC conversion output terminal of the switching power supply, selecting the higher voltage power signal to be input to the power management circuit. In this case, the power supply loop formed between the cathode of the diode connected to the battery, or the cathode of the diode connected to the AC-DC conversion output terminal of the switching power supply, and the input terminal of the power management circuit on the audio system's mainboard is called the audio system's power supply loop.
[0031] Some audio systems lack an AC power interface and an AC-to-DC switching power supply, instead using a non-rechargeable battery to power the mainboard. In this case, the battery's voltage output terminal (i.e., the battery terminal) should be connected to the input terminal of the power management circuit on the mainboard. Please see... Figure 2 As shown, the power supply loop formed between the battery terminal and the input terminal of the power management circuit on the speaker motherboard is called the power supply loop of the speaker motherboard.
[0032] Most users connect a manually operable speaker switch in series in the power supply circuit of the speaker motherboard. Please see [link / reference]. Figure 2 The speaker switch is shown in the dashed box. The user can manually operate the speaker switch to power on (speaker on) and power off (speaker off) the mainboard. The speaker switch is not limited to a rocker switch, push-button switch, or rotary switch. For ease of operation and safe modification of existing speakers, preferably, using the direction of power supply current flow as a reference direction, the embedded volume control module provided by this invention is connected in series with two switch terminals in the speaker connection part after the speaker switch in the power supply circuit of the mainboard, so that the embedded volume control module can operate and shut down along with the speaker. Figure 2 This technological concept was demonstrated.
[0033] The embedded volume control module in this application can be modified and implanted into an existing residential audio system. The specific implementation process is as follows: Power off the audio system, such as unplugging the mains power cord or turning off the audio switch; cut the connecting cable between the audio switch and the audio mainboard. For example, a rocker switch typically uses a cable to connect to the audio mainboard for ease of implementation, forming a... Figure 2The disconnection points shown are connected one-to-one with the two switch terminals of the speaker connection section in the embedded volume control module. Insulating tape is then wrapped around all new connections. Finally, the embedded volume control module and the volume decibel detection unit are fixed inside the speaker, completing the implantation. This method minimizes modifications to the original speaker circuitry, does not alter the speaker's main structure or appearance, and is easy to install. It should be noted that modifications to existing speakers can be performed with authorization from the speaker owner during the implementation of this application. The embedded volume control module in this application can also be implanted during the production of new speakers.
[0034] This invention discloses a remote square dance audio noise control system. In a preferred embodiment, please see... Figure 1 The system includes: one or more speakers, each with an embedded volume control module, the speakers being distributed across one or more monitoring areas, with at least one speaker participating in the square dancing activity in each monitoring area; and a remote control terminal that determines the noise threshold of the monitoring area and sends the noise threshold to the embedded volume control module of the speaker in the monitoring area.
[0035] In this embodiment, the monitoring area is not limited to the entire area or part of the square, or it may be a senior activity center or community activity center. The remote control terminal is not limited to smartphones and / or remote cloud control platforms used by relevant personnel.
[0036] In this embodiment, please see Figure 3 As shown, preferably, the implanted volume control module includes a motherboard and a volume decibel detection unit.
[0037] The motherboard has the following features: For audio connection details, please see Figure 2 and Figure 3 It includes two switch terminals for connecting in series to the power supply circuit of the speaker motherboard, a power supply terminal for connecting to the power supply circuit of the speaker motherboard, and a common ground terminal for connecting to the ground of the speaker motherboard; wherein, with the current flow direction in the power supply circuit of the speaker motherboard as the reference direction, the power supply terminal is located before the two switch terminals, so that when the two switch terminals of the electronic control switch circuit are disconnected (the two switch terminals of the speaker connection part are also disconnected accordingly), the implanted volume control module is powered normally and continuously controls the two switch terminals to be disconnected; The electronically controlled switch circuit has two switch terminals connected one-to-one with two corresponding switch terminals. The control unit has its first signal input terminal connected to the output terminal of the volume decibel detection unit, and its first signal output terminal connected to the control terminal of the electronic switch circuit. One or more communication units, which are connected and communicate with the control unit; The power supply unit provides power to the electronic control switch circuit, control unit, and communication unit, and the power supply terminals are connected to the input terminals of the power supply unit. The power supply unit may include multiple DC-DC regulators to convert the DC power supply signal from the power supply circuit into DC power supply signals of different voltages, facilitating the power supply of various units in the embedded volume control module.
[0038] In this embodiment, the motherboard is not limited to a single-layer or multi-layer printed circuit board (PCB). The motherboard can be a single printed circuit board or it can be composed of two or more printed circuit sub-boards. The electronic control switch circuit, control unit, communication unit, and power supply unit can be distributed on these printed circuit sub-boards, and the printed circuit sub-boards transmit signals to each other through ribbon cables or flexible printed circuit boards (FPC).
[0039] In this embodiment, preferably, an audio switch is provided on the power supply circuit of the audio motherboard, and a power supply terminal and two switch terminals are connected in sequence after the audio switch, so that the embedded volume control module can work and turn off with the audio.
[0040] In this embodiment, the volume decibel detection unit includes a detection board and a volume decibel detection element disposed on the detection board, along with its peripheral circuitry. The detection board is not limited to a printed circuit board. The volume decibel detection element is not limited to an electret condenser microphone, such as Prim's WM-61A or Panasonic's WM-62. Figure 7 This diagram illustrates a circuit connection of a volume decibel detection element and its peripheral circuitry. (Example:) Figure 7 As shown, the second resistor R2, the first resistor R1, the volume decibel detection unit MIC1, the third resistor R3, and the fourth resistor R4 are connected in series. One end of the second resistor R2 is connected to the microphone power supply (typically 1.5V to 10V), and one end of the fourth resistor R4 is connected to the ground of the detection board. The ground of the detection board and the ground of the main board are common. Bypass capacitors of varying capacitances are provided at the microphone power supply to filter out power supply interference. The third capacitor C3 and the fourth capacitor C4 are connected in parallel in the connection path of the first resistor R1, the volume decibel detection unit MIC1, and the third resistor R3, respectively used to filter out low-frequency and high-frequency interference. A capacitor (the sixth capacitor C6 and the seventh capacitor C7) is connected in series at each end of the volume decibel detection element to form the output terminal of the volume decibel detection unit, outputting a differential analog signal. This differential analog signal is input to the first signal input terminal of the control unit (e.g., ...). Figure 4 As shown in the figure, the control unit obtains the current decibel value in the speaker based on the differential analog signal.
[0041] In this embodiment, for ease of control, the electronically controlled switch circuit is preferably a relay and its peripheral circuitry. For example... Figure 6As shown, the relay and its peripheral circuit mainly use relay RLY1 and transistor Q5 as switching devices. The base of transistor Q5 is connected to the first signal output terminal (JK_OUT) of the control unit through resistor R21 (21st resistor). The emitter of transistor Q5 is connected to the ground of the main board. The collector of transistor Q5 is connected to one end of the coil of relay RLY1, and the other end of the coil is connected to the 5V power supply. The two contacts of relay RLY1 serve as the two switching terminals of the electronic control switching circuit, and are connected to the two corresponding switching terminals. Preferably, capacitor C54 (54th capacitor) is connected between the two switching terminals to suppress arcing and protect the contacts. Diode D3 (usually model 1N4148 or 1N4007) is connected in reverse parallel across the coil of relay RLY1 to absorb the reverse electromotive force generated when the coil is de-energized, thus protecting the circuit. Simultaneously, an LED (LED3) is connected in parallel across the coil of relay RLY1 to indicate whether the coil is energized (on) or de-energized (off), and resistor R35 (35th resistor) is connected in series to adjust the brightness of LED3.
[0042] In this embodiment, the control unit includes a control chip and its peripheral circuits, and the control chip is not limited to a microcontroller. Figure 4 A partial circuit diagram of one embodiment of the control unit is shown. The control unit connects one input / output pin of the control chip as the first signal output terminal to the control terminal of the electronically controlled switch circuit. The three input / output pins of the control chip form the first signal input terminal, which is connected to the output terminal of the volume decibel detection unit. The MIC_BIAS terminal is optional and can be the power supply terminal for the volume decibel detection element, i.e., the microphone power supply. The control chip also has a clock signal input terminal, which is connected to the output terminal of a clock circuit (not shown). It can be seen that the control chip selects a serial communication interface as its communication interface to connect and communicate with the communication chip in the communication unit.
[0043] In this embodiment, preferably, one or more communication units include a Bluetooth communication unit and / or a cellular communication unit. When the audio application is located in an area without cellular network coverage, relevant personnel can communicate with the Bluetooth communication unit using terminal devices such as smartphones, and write noise thresholds to the control chip of the control unit via the Bluetooth communication unit. It should be noted that in the current scenario, the communication unit can also be a near-field communication unit (NFC). The control chip of the control unit can connect and communicate with the Bluetooth communication unit via a serial interface (UART).
[0044] To reduce the size of the implanted volume control module and save costs, a microcontroller with integrated Bluetooth communication function can be selected as the control chip, such as the N32WB031KEQ6-2 microcontroller.
[0045] When audio systems are used in key noise monitoring areas requiring remote monitoring, such as busy urban areas or near schools, cellular communication units can be installed. These cellular communication units are not limited to existing 3G, 4G, or 5G communication modules; they include a communication chip and its peripheral circuitry. During operation, the cellular communication unit connects and communicates with a remote control terminal (such as a remote cloud control platform). The remote control terminal can remotely send noise threshold setting commands to the control chip, which then sets the noise threshold according to these commands.
[0046] In one example, the cellular communication unit selects a 4G communication module, and the communication chip of the 4G communication module can be selected as ML307C-DC-CN. The circuit diagram of the cellular communication unit is shown below. Figure 5 As shown, the communication chip uses a serial communication interface, which connects to the control chip's communication interface via a level conversion circuit. This circuit converts the 3.3V control chip communication interface signal to a 1.8V communication chip communication interface signal. The communication chip's reset pin, 4G_RST, is connected to an input / output pin of the control chip. The communication chip's antenna input is connected to a corresponding antenna, which is not limited to a printed antenna or an onboard spring antenna. The communication chip also includes a SIM card communication interface for connecting to a SIM card slot circuit (not shown). The SIM card represents the Subscriber Identity Module (SIM).
[0047] In a preferred embodiment, please see Figure 8 The power supply unit includes a DC-DC boost circuit and a voltage regulator circuit. The input terminal of the DC-DC boost circuit is connected to the power supply terminal, and the output terminal of the DC-DC boost circuit is connected to the input terminal of the voltage regulator circuit.
[0048] In this embodiment, the DC-DC boost circuit may include an existing DC-DC boost chip (such as LGS6302B5) and its peripheral circuitry. For specific circuit connections, please refer to [link to documentation]. Figure 9 As shown. Both the enable and input terminals of the DC-DC boost converter chip are connected to the power supply terminals. The voltage of the power supply terminals is not limited to 3.6V. The DC-DC boost circuit boosts the voltage at the power supply terminals to above 12V.
[0049] In this embodiment, and more preferably, please see... Figure 8 The DC-DC voltage regulator circuit includes a first voltage regulator sub-circuit and a second voltage regulator sub-circuit connected in sequence. The sequential connection of the first and second voltage regulator sub-circuits achieves a step-by-step voltage reduction, which on the one hand provides power signals of different voltages to the implanted volume control module, and on the other hand improves voltage conversion efficiency.
[0050] In this embodiment, the first voltage regulator sub-circuit may include a DC-DC buck converter chip and its peripheral circuitry, such as... Figure 10As shown, the first voltage regulator circuit converts the DC power signal output from the DC-DC boost circuit into a 5V DC power signal to power the relay RLY1.
[0051] In this embodiment, to adapt to the different power supply voltage requirements of the implanted volume control module, the second voltage regulator sub-circuit preferably includes a linear voltage regulator circuit and a switching voltage regulator circuit. The linear voltage regulator circuit is as follows: Figure 11 As shown, it includes a linear voltage regulator chip (such as TPS7A2033PDBVR) and its peripheral circuitry, used to convert the 5V power signal output from the first voltage regulator sub-circuit into a 3V3 power signal, used to power the Bluetooth communication unit, cellular communication unit, etc. A switching voltage regulator circuit is shown below. Figure 12 As shown, it includes a switching regulator chip (such as SY8089A1AAC) and its peripheral circuits, which are used to convert the 5V power supply signal output by the first voltage regulator sub-circuit into a 3V96 power supply signal for powering cellular communication units, etc.
[0052] In a preferred embodiment, to improve the accuracy of noise volume measurement and avoid its influence by the speaker housing or speaker sound pressure, the first signal input terminal of the control unit is connected to the output terminal of the volume decibel detection unit via a flexible circuit. This facilitates adjustment of the installation position of the volume decibel detection unit, ensuring it is as far away from the speaker as possible within the speaker and not in close contact with the inner wall of the speaker housing. The flexible circuit is not limited to ribbon cables, flexible printed circuit boards (FPCs), or wires.
[0053] More preferably, for ease of installation, the back of the volume decibel detection unit is provided with a fixing element for fixing the volume decibel detection unit inside the speaker. The fixing element is not limited to clips or adhesive. The volume decibel detection unit is fixed to the internal cables or brackets of the speaker by clips, and can be adhered to any position away from the speaker and not in close contact with the inner wall of the speaker housing by adhesive.
[0054] In a preferred embodiment, the motherboard further includes a positioning unit connected to the control unit. The output of the positioning unit is connected to the positioning signal input of the control unit; specifically, this connection can be made via a serial communication interface, such as... Figure 4 As shown, the positioning unit uses existing GPS and BeiDou positioning modules. This positioning unit facilitates the remote control terminal in obtaining the location information of the speakers, thereby improving control efficiency.
[0055] In a preferred embodiment, the control process of the remote square dance audio noise control system includes: Step S1: The remote control terminal determines the noise threshold of the monitored area and sends the noise threshold to the embedded volume control module of the speakers in the monitored area.
[0056] Understandably, a 24-hour day is divided into multiple time periods, and the remote control terminal sets a noise threshold for each monitored area during each time period. The remote control terminal has prior knowledge of the communication addresses of the embedded volume control modules of the speakers active in each monitored area. This is achieved by pre-establishing an address table, which includes one or more monitoring area numbers, each monitoring area number associated with one or more speaker numbers active within that area, and each speaker number associated with the communication address of its embedded volume control module. At the start of each time period, the remote control terminal queries the address table to obtain the communication addresses of the embedded volume control modules of the speakers active in each monitored area, and based on these addresses, sends the noise threshold for that time period to the control unit via the communication unit.
[0057] Since the speakers are mobile, to achieve accurate monitoring, it is preferable to update the address table periodically. For example, update the address table first at the beginning of each time period, and then determine the noise threshold and the noise transmission threshold for each monitored area. At the beginning of each time period, the remote monitoring terminal sends a location command to the embedded volume control modules of all registered and managed speakers. The embedded volume control modules of the registered and managed speakers use the positioning unit to obtain their own location information and report the location information to the remote control terminal. Based on the location information reported by all embedded speaker control modules and the location range covered by the monitored area, the remote control terminal determines the active speakers in each monitored area for the current time period, updates the association between the monitored area and the speakers in the address table, and obtains a new address table. Afterwards, the noise threshold and the noise transmission threshold for each monitored area are determined.
[0058] Step S2: After receiving the noise threshold, the embedded volume control module in the monitoring area detects the noise volume inside the speaker. When the noise volume inside the speaker is greater than or equal to the noise threshold, the power supply circuit of the speaker motherboard where the embedded volume control module is located is cut off.
[0059] Understandably, upon receiving a noise threshold, the control chip of the control unit acquires the analog audio signal output by the volume decibel detection unit in real time or periodically through the first signal input terminal. It processes the analog audio signal to obtain the internal noise volume of the speaker and compares it with the noise threshold. When the internal noise volume exceeds the noise threshold, the control chip sends a control signal to the control terminal of the electronic switch circuit through the first signal output terminal, causing the two switches of the electronic switch circuit to open, cutting off the power supply to the speaker's main board, and the speaker is melted. When the internal noise volume does not exceed the noise threshold, the two switches of the electronic switch circuit remain closed and conductive, and the speaker's main board is powered normally.
[0060] For example, the electronically controlled switch circuit adopts Figure 6The relay circuit shown operates as follows: When the internal noise level of the speaker exceeds the noise threshold, the control chip's first signal output terminal JK_OUT outputs a high-level signal to the twenty-first resistor R21. This connects the base and emitter of transistor Q5, energizing the coil of relay RLY1. The normally closed two terminals (contacts) of relay RLY1 open, cutting off the power supply to the speaker's mainboard and causing the speaker to fuse. When the internal noise level exceeds the noise threshold, the control chip's first signal output terminal JK_OUT outputs a low-level signal to the twenty-first resistor R21. This cuts off the base and emitter of transistor Q5, de-energizing the coil of relay RLY1. The normally closed two terminals (contacts) of relay RLY1 remain closed, and the speaker operates normally.
[0061] In a preferred embodiment, in step S2, the condition for fuse breaking is: when the implanted volume control module detects that the internal noise volume of the speaker is greater than or equal to the noise threshold M times, the power supply circuit of the speaker motherboard where the implanted volume control module is located is broken, where M represents the number of fuse breaking judgments and M is a positive integer.
[0062] In this embodiment, the value of M is not limited to 1 to 10, and the time interval between two detections is not limited to 10 seconds to 60 seconds. If the internal noise volume of the speaker is detected to be less than the noise threshold more than once, the power supply circuit of the speaker motherboard where the embedded volume control module is located will not be cut off to avoid malfunction.
[0063] In a preferred embodiment, after step S2, i.e., after the implanted volume control module melts the power supply circuit of the speaker motherboard, the method further includes: if the implanted volume control module detects that the internal noise volume of the speaker is less than the noise threshold N times, then the power supply circuit of the speaker motherboard is turned on, where N represents the number of recovery judgments and N is a positive integer. Specifically, the power supply circuit of the speaker motherboard can be turned on by controlling the two switch terminals of the electronic control switch circuit to close (the two contacts of relay RLY1 are closed) through the control unit.
[0064] In this embodiment, the value of N is not limited to 1 to 10, and the time interval between two detections is not limited to 5 seconds to 30 seconds. If the internal noise volume of the speaker is not less than the noise threshold for N consecutive detections, it is considered that there is an abnormality in the hardware such as the electronic control switch circuit, and an abnormal event is sent to the remote control terminal. The abnormal event includes the speaker number and the current location information.
[0065] The above technical solution reduces reliance on human labor and enables uninterrupted automated control 24 / 7.
[0066] In a preferred embodiment, while the power supply circuit of the speaker motherboard of the speaker where the implanted volume control module is located is cut off, the implanted volume control module reports the cut-off event to the remote management terminal. The cut-off event includes the cut-off time, the internal noise volume of the speaker at the time of cut-off, and the noise threshold at the time of cut-off. After receiving and storing the cut-off event, the remote management terminal accumulates the number of times the speaker where the implanted volume control module is located has cut off.
[0067] In this embodiment, the circuit breaker event allows relevant personnel to monitor the noise status of the monitored area in real time through a remote control terminal. Based on the historically stored circuit breaker events and the cumulative number of circuit breaker events, the noise situation can be analyzed and the noise control effect can be evaluated, thus realizing the visualization, quantification and traceability of noise control.
[0068] In a preferred embodiment, step S1 involves the remote control terminal determining the noise threshold of the monitored area, including: determining the noise threshold of the monitored area based on the current time.
[0069] Understandably, a 24-hour day is divided into multiple equally or unequally spaced time periods, each lasting 1 to 4 hours. A noise threshold is set for each time period based on residents' noise tolerance; for example, the noise threshold for nighttime to early morning hours is significantly lower than that for daytime hours. The current time period is used to determine the current time period's location, and the corresponding noise threshold is then used as the noise threshold for the monitored area at that time.
[0070] In this embodiment, preferably, during speaker operation, the embedded volume control module uploads timestamped internal speaker noise levels to the remote control terminal in real time or periodically. The remote control terminal compiles the timestamped internal speaker noise levels uploaded by all speakers in each monitoring area into historical noise data for that monitoring area. The remote control terminal determines the noise threshold for the monitoring area, including: Step S11: Compare the current time with the occurrence times of historical noise complaint events in the monitored area, determine the occurrence time of the historical noise complaint event that best matches the time, and record it as the target occurrence time.
[0071] Specifically, the current time period is determined as the first time period, and the occurrence time of historical noise complaint events in the monitored area is determined as the second time period. The occurrence time of the historical noise complaint event in the monitored area that is closest to the first time period in the second time period is recorded as the target occurrence time. Historical noise complaint events in the monitored area refer to events in which residents around the monitored area feel that the noise is too loud and complain to relevant departments. The monitoring platform of this application stores historical noise complaint events in the monitored area through legal sources, and stores the time when residents felt that the noise was too loud in the event, i.e., the occurrence time.
[0072] Step S12: Extract the internal noise volume of the speaker corresponding to the timestamp that best matches the time of the target occurrence from the historical noise data of the monitoring area, and use the extracted internal noise volume of the speaker as the noise threshold of the monitoring area.
[0073] Specifically, the timestamp that best matches the target occurrence time is the timestamp closest to the target occurrence time in a 24-hour time format. For example, if the timestamp is 20:15 on October 13, 2025, and the target occurrence time is 20:05 on September 3, 2025, then the time difference between 20:15 and 20:05 is 10 minutes. Furthermore, the mean or median of the internal noise levels of all speakers within the monitoring area at the time of historical noise complaint events is used as the noise threshold for the current time in the monitoring area.
[0074] In the description of this specification, the references to terms such as "an embodiment," "some embodiments," "example," "specific example," "a implementation," "a preferred implementation," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0075] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A remote square dance audio noise control system, characterized in that, The system includes: One or more speakers, each with an embedded volume control module, are located in one or more monitoring areas. The remote control terminal determines the noise threshold of the monitored area and sends the noise threshold to the embedded volume control module of the speakers in the monitored area. After receiving the noise threshold, the embedded volume control module in the monitoring area detects the noise volume inside the speaker. When the noise volume inside the speaker is greater than or equal to the noise threshold, the power supply circuit of the speaker motherboard where the embedded volume control module is located is cut off.
2. The remote square dance audio noise control system according to claim 1, characterized in that, When the implanted volume control module detects that the internal noise volume of the speaker is greater than or equal to the noise threshold M times, the power supply circuit of the speaker motherboard where the implanted volume control module is located is cut off. M represents the number of times the fuse is cut off, and M is a positive integer.
3. The remote square dance audio noise control system according to claim 1, characterized in that, While the power supply circuit of the speaker motherboard of the speaker where the embedded volume control module is located is cut off, the embedded volume control module reports the fuse failure event to the remote management terminal. The fuse failure event includes the fuse failure time, the internal noise volume of the speaker at the time of fuse failure, and the noise threshold at the time of fuse failure. After receiving and storing the circuit breaker event, the remote control terminal accumulates the number of circuit breaker events in the speaker where the embedded volume control module is located.
4. The remote square dance audio noise control system according to claim 1, characterized in that, The remote control terminal determines the noise threshold of the monitored area, including: determining the noise threshold of the monitored area based on the current time.
5. A remote square dance audio noise control system according to claim 3, characterized in that, During the operation of the audio system, the embedded volume control module uploads the internal noise volume of the audio system with timestamps to the remote control terminal in real time or periodically. The remote control terminal then compiles the internal noise volume of the audio system with timestamps uploaded by all audio systems in each monitoring area into historical noise data for that monitoring area. The remote control terminal determines the noise threshold of the monitored area, including: Compare the current time with the occurrence times of historical noise complaint events in the monitored area, determine the occurrence time of the historical noise complaint event that best matches the current time, and record it as the target occurrence time; Extract the internal noise volume of the speaker corresponding to the timestamp that best matches the time of the target occurrence from the historical noise data of the monitored area, and use the extracted internal noise volume of the speaker as the noise threshold of the monitored area.
6. A remote square dance audio noise control system according to any one of claims 1-5, characterized in that, When the embedded volume control module blows the power supply circuit of the speaker motherboard, if the embedded volume control module detects that the internal noise volume of the speaker is less than the noise threshold N times, then the power supply circuit of the speaker motherboard will be connected. N represents the number of times the recovery judgment is made, and N is a positive integer.
7. A remote square dance audio noise control system according to claim 6, characterized in that, The implanted volume control module includes a motherboard and a volume decibel detection unit; The motherboard has the following features: The audio connection section includes two switch terminals for connecting in series to the power supply circuit of the audio motherboard, a power supply terminal for connecting to the power supply circuit of the audio motherboard, and a common ground terminal for connecting to the ground of the audio motherboard; wherein, with the current flow direction in the power supply circuit of the audio motherboard as the reference direction, the power supply terminal is located before the two switch terminals. The electronically controlled switch circuit has two switch terminals connected one-to-one with two corresponding switch terminals. The control unit has its first signal input terminal connected to the output terminal of the volume decibel detection unit, and its first signal output terminal connected to the control terminal of the electronic switch circuit. One or more communication units, which are connected and communicate with the control unit; The power supply unit supplies power to the electronic control switch circuit, the control unit, and the communication unit, and the power supply terminals are connected to the input terminals of the power supply unit.
8. A remote square dance audio noise control system according to claim 7, characterized in that, The first signal input terminal of the control unit is connected to the output terminal of the volume decibel detection unit via a flexible circuit.
9. A remote square dance audio noise control system according to claim 8, characterized in that, The motherboard also has a positioning unit, which is connected to the control unit.
10. A remote square dance audio noise control system according to any one of claims 7-9, characterized in that, The power supply unit includes a DC-DC boost circuit and a voltage regulator circuit. The input terminal of the DC-DC boost circuit is connected to the power supply terminal, and the output terminal of the DC-DC boost circuit is connected to the input terminal of the voltage regulator circuit.