CN113784271A - High-temperature protection method and system for sound equipment - Google Patents
High-temperature protection method and system for sound equipment Download PDFInfo
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- CN113784271A CN113784271A CN202111139341.3A CN202111139341A CN113784271A CN 113784271 A CN113784271 A CN 113784271A CN 202111139341 A CN202111139341 A CN 202111139341A CN 113784271 A CN113784271 A CN 113784271A
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- 238000012544 monitoring process Methods 0.000 description 7
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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Abstract
The application relates to a sound high-temperature protection method and a system, wherein the method is based on a sound control system, the sound control system comprises a control center and a plurality of sound devices, and the method comprises the following steps: the control center periodically acquires characteristic information of each sound equipment after the power amplifier is started, wherein the characteristic information comprises the working temperature and the output power of the power amplifier; comparing the working temperature of the power amplifier with a preset temperature threshold; and when the working temperature of a certain power amplifier is not less than a preset temperature threshold value, adjusting the output power of the power amplifier according to a preset power attenuation step length. The application has the technical effects that: the use experience of the user is improved.
Description
Technical Field
The invention relates to the technical field of electronic products, in particular to a high-temperature protection method and system for a sound box.
Background
The power amplifier is called power amplifier for short, is one of the most basic components in sound equipment and is mainly used for amplifying weak electric signals from a signal source to drive a loudspeaker to play sound. The sound equipment mainly comprises a sound host, a power amplifier, a receiving device, a loudspeaker and the like, and can play broadcast, recorded songs and the like for a user.
In the correlation technique, when audio equipment carried the load operation for a long time, the temperature of power amplifier also can rise along with it, when the temperature that audio equipment built-in temperature sensor sensed the power amplifier had reached preset temperature threshold, audio equipment just can start the radiator from the area and dispel the heat, and if after the radiator was opened a period, the temperature of power amplifier was not less than preset temperature threshold all the time, audio equipment then can directly cut off power supply to reduce because of the overheated possibility that causes audio equipment to damage of power amplifier.
In the process of implementing the present application, the inventors found that the above-mentioned technology has at least the following problems: when the power amplifier temperature reached preset temperature threshold, if audio equipment directly cut off power supply, though can effectively reduce the possibility that audio equipment damaged, the overheat protection mode of this kind of limitation can cause user experience not good.
Disclosure of Invention
In order to solve the problem that the user experience is poor due to limited overheat protection of sound equipment, the application provides a sound high-temperature protection method and system.
In a first aspect, the present application provides a sound high temperature protection method and system, which adopt the following technical solutions:
the method is based on a sound control system, which comprises a control center and a plurality of sound devices,
the method comprises the following steps:
the control center periodically acquires characteristic information of each sound equipment after the power amplifier is started, wherein the characteristic information comprises the working temperature and the output power of the power amplifier;
comparing the working temperature of the power amplifier with a preset temperature threshold;
and when the working temperature of a certain power amplifier is not less than a preset temperature threshold value, adjusting the output power of the power amplifier according to a preset power attenuation step length.
Through adopting above-mentioned technical scheme, when the operating temperature of power amplifier reachd predetermined temperature threshold value in the stereo set, the output of power amplifier is turned down according to predetermined power attenuation step length to the system to make the operating temperature of power amplifier reduce to below the predetermined temperature threshold value, thereby when realizing to audio equipment overheat protection, guarantee audio equipment's normal use, and then guarantee user's experience and feel.
Optionally, the sound control system further includes a decibel tester disposed at a preset sound receiving point, and after adjusting the output power of the power amplifier according to a preset power attenuation step length, the sound control system further includes: acquiring an initial decibel value of a preset sound receiving point after the sound equipment is started, decibel values after the power amplifier adjusts output power and working states of all the sound equipment, wherein the working states comprise working and idle states;
selecting a target sound from all the sound equipment in an idle state according to a preset selection rule; and sending a starting instruction to the target sound, and gradually increasing the output power of the target sound until the decibel value of the decibel tester is equal to the initial decibel value.
Through adopting above-mentioned technical scheme, because when the output of power amplifier reduces, the decibel value of stereo set sound production also can reduce, in order to guarantee that the user is experienced at the use of predetermined sound receiving point department, the system can be used in the stereo set cooperation sound production of idle state to guarantee that the decibel value of predetermined sound receiving point keeps original size.
Optionally, the selecting, according to a preset selection rule, a target sound from all the sound devices in an idle state includes:
acquiring distance values between all the sound equipment in an idle state and a preset sound receiving point; and preferentially setting the sound equipment which corresponds to the minimum distance value and is in an idle state as the target sound.
By adopting the technical scheme, the closer the distance to the sound equipment is, the larger the sensed decibel value is, so that the system preferentially sets the sound equipment with the minimum distance value and in the idle state as the target sound equipment according to the distance value between the sound equipment in the idle state and the preset sound receiving point, thereby realizing the full utilization of idle sound equipment resources and contributing to reducing resource waste.
Optionally, after preferentially setting the sound device in the idle state corresponding to the minimum distance value as the target sound, the method further includes:
sequencing all the rest sound equipment in an idle state according to the size of the distance value from small to large, and generating a sequencing table;
comparing the use temperature of the power amplifier in the target sound equipment with a corresponding preset temperature threshold value in real time, and if the use temperature of the power amplifier in the target sound equipment is not less than the corresponding preset temperature threshold value, adjusting the output power of the power amplifier in the target sound equipment according to a preset power attenuation step length;
and sequentially selecting other sound equipment in an idle state from the sequencing list as target sound.
By adopting the technical scheme, the situation that the service temperature of the power amplifier is too high in the use process of the target sound box is considered, so that the service temperature of the target sound box is compared with the corresponding preset temperature threshold value, if the service temperature of the target sound box is not less than the corresponding preset temperature threshold value, the current output power of the power amplifier in the target sound box is adjusted by the system, and after the output power of the target sound box is reduced, the decibel value of the target sound box received by the preset sound receiving point can be reduced, so that the target sound box is continuously selected from the sequencing list by the system, and the experience of a user at the preset sound receiving point is ensured.
Optionally, a plurality of the sound devices are deployed in a preset sound workspace, and the method further includes:
acquiring the ambient temperature of the sound equipment working space;
when the working temperature of the power amplifier is not less than the environmental temperature, comparing the working temperature of the power amplifier with a preset critical temperature, wherein the value of the preset critical temperature is less than a preset temperature threshold value;
if the working temperature of the power amplifier is not higher than a preset critical temperature, calculating the temperature change rate of the power amplifier according to a preset calculation rule;
and comparing the temperature change rate of the power amplifier with a preset temperature change standard rate, and if the temperature change rate of the power amplifier is greater than the temperature change standard rate, judging that the power amplifier works abnormally.
By adopting the technical scheme, the possibility of abnormal temperature rise of the power amplifier is considered before the working temperature of the power amplifier reaches the preset critical temperature, so that the system calculates the temperature change rate of the power amplifier according to the preset calculation rule before the working temperature of the power amplifier rises to the preset critical temperature; and considering that the temperature change rate may be influenced by the ambient temperature of the power amplifier, the system may generate the standard rate of temperature change according to the usage record of the sound equipment of the same batch and the same model by the manufacturer, and if the temperature change rate of the power amplifier in the sound equipment is greater than the corresponding standard rate of temperature change, the power amplifier is indicated to work abnormally.
Optionally, if the operating temperature of the power amplifier is not greater than a preset critical temperature, calculating the temperature change rate of the power amplifier according to a preset calculation rule includes:
and if the working temperature of the power amplifier is not greater than the preset critical temperature, taking the preset time length as a single period, and in each period, dividing the temperature variation of the power amplifier by the preset time length to obtain the temperature variation rate in the corresponding period.
By adopting the technical scheme, in order to ensure the safe and effective monitoring of the working temperature of the power amplifier, the monitoring period is set so as to periodically compare the temperature change rate of the power amplifier with the temperature change standard rate, and the efficiency of monitoring abnormal temperature rise is promoted.
Optionally, after the output power of the power amplifier is adjusted according to the preset power attenuation step, the method further includes:
after a preset waiting time, if the working temperature of the power amplifier is not less than a preset temperature threshold, continuously adjusting the output power of the power amplifier according to a preset power attenuation step length;
counting the total times of the power amplifier for adjusting the output power;
and comparing the total times with a preset time threshold, and if the total times is not less than the preset time threshold, judging that the power amplifier works abnormally.
By adopting the technical scheme, after the output power of the power amplifier is reduced, the working temperature of the power amplifier needs to be reduced for a certain time, after the preset waiting time, if the working temperature of the power amplifier still rises to the preset temperature threshold, the system continues to adjust the output power of the power amplifier according to the preset power attenuation step length, and after the power amplifier adjusts the output power, if the working temperature of the power amplifier rises to the preset temperature threshold again, the system continues to adjust the output power of the power amplifier according to the preset power attenuation step length, and the meaning of infinitely reducing the output power of the power amplifier is considered to be low, so the system can count the total times of adjusting the output power of the power amplifier, and if the total times is not less than the preset times threshold, the abnormal work of the power amplifier is indicated, and the reduced output power of the power amplifier is not continued.
In a second aspect, the present application provides a sound control system, which adopts the following technical solution: the sound control system comprises a control center and a plurality of sound devices, wherein:
the control center is used for periodically acquiring characteristic information of each sound equipment after the power amplifier is started, wherein the characteristic information comprises the working temperature and the output power of the power amplifier;
the control center is used for comparing the working temperature of the power amplifier with a preset temperature threshold value;
and the control center is used for adjusting the output power of the power amplifier according to a preset power attenuation step length when the working temperature of a certain power amplifier is not less than a preset temperature threshold value.
Through adopting above-mentioned technical scheme, when the operating temperature of power amplifier reachd predetermined temperature threshold value in the stereo set, the output of power amplifier is turned down according to predetermined power attenuation step length to the system to make the operating temperature of power amplifier reduce to below the predetermined temperature threshold value, thereby when realizing to audio equipment overheat protection, guarantee audio equipment's normal use, and then guarantee user's experience and feel.
In a third aspect, the present application provides a computer device, which adopts the following technical solution: the system comprises a memory and a processor, wherein the memory is used for storing a computer program which can be loaded by the processor and used for executing any one of the sound high-temperature protection method and the sound high-temperature protection system.
Through adopting above-mentioned technical scheme, when the operating temperature of power amplifier reachd predetermined temperature threshold value in the stereo set, the output of power amplifier is turned down according to predetermined power attenuation step length to the system to make the operating temperature of power amplifier reduce to below the predetermined temperature threshold value, thereby when realizing to audio equipment overheat protection, guarantee audio equipment's normal use, and then guarantee user's experience and feel.
In a fourth aspect, the present application provides a storage medium, which adopts the following technical solutions: a computer program is stored which can be loaded by a processor and which can perform any of the above described methods and systems for acoustic high temperature protection.
Through adopting above-mentioned technical scheme, when the operating temperature of power amplifier reachd predetermined temperature threshold value in the stereo set, the output of power amplifier is turned down according to predetermined power attenuation step length to the system to make the operating temperature of power amplifier reduce to below the predetermined temperature threshold value, thereby when realizing to audio equipment overheat protection, guarantee audio equipment's normal use, and then guarantee user's experience and feel.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the working temperature of the power amplifier in the sound equipment reaches a preset temperature threshold value, the system reduces the output power of the power amplifier according to a preset power attenuation step length, so that the working temperature of the power amplifier is reduced to be lower than the preset temperature threshold value, thereby realizing overheating protection of the sound equipment, ensuring normal use of the sound equipment and further ensuring the experience feeling of a user;
2. because the decibel value of the sound equipment is reduced when the output power of the power amplifier is reduced, in order to ensure the use experience of a user at a preset sound receiving point, the system can adjust the sound equipment in an idle state to cooperate with the sound equipment to produce sound so as to ensure that the decibel value of the preset sound receiving point keeps the original size;
3. the closer the distance to the sound equipment is, the larger the sensed decibel value is, so that the system preferentially sets the sound equipment with the minimum distance value and in the idle state as the target sound equipment according to the distance value between the sound equipment in the idle state and the preset sound receiving point, thereby fully utilizing the idle sound equipment resources and being beneficial to reducing resource waste;
4. considering that the use temperature of the power amplifier is too high in the use process of the target sound, the use temperature of the target sound is compared with a corresponding preset temperature threshold, if the use temperature of the target sound is not less than the corresponding preset temperature threshold, the current output power of the power amplifier in the target sound is adjusted by the system, and after the output power of the target sound is reduced, the decibel value of the target sound received by a preset sound receiving point is reduced, so that the system continuously selects the target sound from the ranking table to ensure the experience of a user at the preset sound receiving point;
5. considering that the power amplifier has the possibility of abnormal temperature rise before the working temperature of the power amplifier reaches the preset critical temperature, the system calculates the temperature change rate of the power amplifier according to the preset calculation rule before the working temperature of the power amplifier rises to the preset critical temperature; and considering that the temperature change rate may be influenced by the ambient temperature of the power amplifier, the system can generate the standard rate of temperature change according to the use record of the sound equipment of the same batch and the same model by a manufacturer, and if the temperature change rate of the power amplifier in the sound equipment is greater than the corresponding standard rate of temperature change, the power amplifier is indicated to work abnormally, thereby being beneficial to improving the efficiency of high-temperature monitoring.
Drawings
Fig. 1 is a flowchart of a method for protecting a sound device from high temperature in an embodiment of the present application.
Fig. 2 is a flowchart of a method for protecting a sound device from high temperature in an embodiment of the present application.
Fig. 3 is a flowchart of a method for protecting a sound device from high temperature in an embodiment of the present application.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a high-temperature protection method for a sound box, which can be applied to a sound box control system, wherein the sound box control system can be a system which is applied to indoor or outdoor sound box equipment starting and stopping, output power adjustment of the sound box equipment and other related operations. The sound control system may include a control center, a decibel tester, and a plurality of sound devices. Wherein, the sound equipment deploys different positions in predetermined stereo set workspace, be provided with predetermined sound receiving point in the predetermined stereo set workspace, predetermined stereo set workspace can also be for outdoor for indoor, control center is responsible for opening and close and output's the regulation of controlling sound equipment, the decibel tester sets up in predetermined sound receiving point department, and install the temperature sensor who is used for monitoring the power amplifier temperature in the stereo set, be used for radiating radiator and control chip, the radiator, decibel tester and control chip all are connected with the control center electricity.
As shown in fig. 1, the method comprises the steps of:
and S100, the control center periodically acquires the characteristic information of each sound equipment after the power amplifier is started.
Specifically, the sound control system may periodically obtain the characteristic information of the power amplifier after the sound equipment is turned on, for example, the characteristic information is obtained every 2min, and the characteristic information includes the operating temperature and the output power of the power amplifier. The working temperature of the power amplifier is obtained through a temperature sensor. Generally, when the volume of the audio is adjusted to a constant volume by a user, the working voltage value of the power amplifier is in a constant state, and at this time, the audio control system calculates the formula according to the power:
and calculating the current output power of the power amplifier, wherein P is the output power of the power amplifier during detection, U is the detected constant voltage, and R is the resistance value of the power amplifier.
And S200, comparing the working temperature of the power amplifier with a preset temperature threshold.
Specifically, the preset temperature threshold is a temperature safety value set by a manufacturer according to historical usage records or maintenance records of sound devices of the same batch and the same model, that is, when the temperature of the power amplifier during operation is less than the preset temperature threshold, the operating state of the power amplifier is safe and stable.
And S300, when the working temperature of a certain power amplifier is not less than a preset temperature threshold, adjusting the output power of the power amplifier according to a preset power attenuation step length.
The preset power attenuation step is the amount of output power required to be reduced of the power amplifier, the amount of output power required to be reduced is set by a manufacturer according to historical use records of sound devices of the same batch and the same model, and the preset power attenuation step in the embodiment of the application is taken as an example of 100W. When the working temperature of the power amplifier is larger than or equal to the preset temperature threshold value, the sound control system reduces the output power of the power amplifier by 100W.
Optionally, after the output power of the power amplifier is reduced, the decibel value of the volume of the audio device may also be reduced, and in order to ensure the experience effect of the user at the preset sound receiving point, with reference to fig. 2, the following processing may also exist after step 300:
s400, selecting a target sound and sending a starting instruction to the target sound, and gradually increasing the output power of the target sound until the decibel value of the decibel tester is equal to the initial decibel value.
The target sound is one or more sound devices in an idle state, the target sound is used for matching with the sound devices with reduced output power, the decibel tester is arranged at the preset sound receiving point, so that the decibel value detected by the decibel tester is the decibel value at the preset sound receiving point, and the initial decibel value is the initial value of the decibel detected by the decibel tester before the power amplifier output power is adjusted. It is to be noted that, if the sound receiving point is an area having a certain area, the decibel value of the center of the sound receiving point is measured.
Specifically, the sound control system obtains a preset decibel value at a sound receiving point and working states of all sound equipment in a preset sound working space, and the working states of the sound equipment comprise working states or idle states.
And the sound control system selects a target sound from all sound equipment in an idle state according to a preset selection rule, and then sends a starting instruction to the target sound to control the target sound to be powered on and gradually increase the output power of the target sound until the decibel value detected by the decibel meter is equal to the initial decibel value. It is worth noting that when the output power of the target sound is increased, the sound control system is mainly realized by adjusting the output voltage of the power amplifier through the control chip.
The closer the distance between the sound control system and the sound equipment is, the larger the decibel value sensed by the decibel tester is, so that when the sound control system selects a target sound from all the sound equipment in an idle state according to a preset selection rule, the distance value between all the sound equipment in the idle state and a preset sound receiving point in a preset sound working space is firstly obtained, and then the sound equipment corresponding to the minimum distance value is preferentially set as the target sound.
Optionally, considering that the target sound device may also have a situation that the use temperature of the power amplifier of the target sound device is too high in the use process, in order to ensure the overheat protection for the power amplifier in use, with reference to fig. 3, after step 400, the following processing may also be performed:
s500, when the service temperature of the power amplifier in the target sound equipment is not less than the corresponding preset temperature threshold value, the output power of the power amplifier in the target sound equipment is adjusted according to the preset power attenuation step length, and the target sound equipment is continuously selected.
Specifically, after preferentially setting the sound equipment in the idle state corresponding to the minimum distance value as the target sound, the sound control system firstly sorts all the sound equipment in the idle state in the preset sound working space according to the size of the distance value from small to large and generates a sorting table, and then compares the service temperature of the power amplifier in the target sound with the preset temperature threshold corresponding to the target sound in real time.
And if the service temperature of the target sound equipment is not less than the corresponding preset temperature threshold value, adjusting the output power of a power amplifier in the target sound equipment according to the preset power attenuation step length. It should be noted that the preset power attenuation step size is consistent with the above, and is also set by the manufacturer according to the historical usage record of the same batch and the same model of sound equipment.
When the output power of the power amplifier in the target sound equipment is reduced, correspondingly, the decibel value of the sound emitted by the target sound equipment is reduced, at the moment, the sound control system needs to continuously select other sound equipment in an idle state from the sequencing table to serve as the target sound equipment, so that the decibel value of the preset sound receiving point is equal to the initial decibel value, and the experience of a user at the preset sound receiving point is guaranteed.
If the service temperature of the target sound is smaller than the preset temperature threshold value, the power amplifier works normally, and at the moment, the sound control system does not act.
Optionally, the output power of the power amplifier is adjusted according to a preset power attenuation step length, so as to reduce the operating temperature of the power amplifier to below a preset temperature threshold, and considering that the operating temperature of the power amplifier may still rise to the preset temperature threshold after the output power of the power amplifier is reduced for a period of time, so as to further ensure the effectiveness of the power amplifier over-temperature protection, correspondingly, after step 300, the following processing may also be performed:
after the preset waiting time, if the working temperature of the power amplifier is not less than the preset temperature threshold, the sound control system continues to adjust the output power of the power amplifier according to the preset power attenuation step length.
The preset waiting time duration needs to be set by a generator according to the use records of the same batch of sound equipment with the same model, and the preset waiting time duration can take 5 minutes as an example. The preset power attenuation step size here coincides with the definition of the aforementioned preset power attenuation step size.
Particularly, every time the output power of power amplifier is turned down to sound control system, just long through predetermined waiting time, compare the operating temperature and the predetermined temperature threshold value of power amplifier, if the operating temperature of power amplifier still is not less than predetermined temperature threshold value yet, then continue to turn down the output power of power amplifier according to predetermined power decay step length, and count the total number of times that output power was adjusted to the power amplifier, when the total number of times that output power of power amplifier was adjusted is not less than predetermined number of times threshold value, then judge that the power amplifier is unusual, and send the early warning suggestion, when sending the early warning suggestion, the warning light that corresponds on the steerable sound shell of sound control system flickers, overhaul in order to remind the user.
Optionally, in another embodiment, in order to further improve the effectiveness of monitoring the high-temperature anomaly of the power amplifier, the sound control system may monitor the temperature increase rate of the power amplifier before the working temperature of the power amplifier rises to a preset critical temperature, and the method may further include the following steps:
and selecting a corresponding processing mode according to the magnitude relation among the working temperature of the power amplifier, the preset critical temperature and the preset temperature threshold.
The preset critical temperature is set by a manufacturer according to the use records of the same batch of sound equipment with the same model, and the value of the preset critical temperature is smaller than the preset temperature threshold value.
Particularly, when the operating temperature of power amplifier is not more than predetermined critical temperature, sound control system need compare the temperature change rate of power amplifier with predetermined temperature change standard rate, in order to reduce the influence of the ambient temperature of predetermined stereo set workspace to the temperature change rate monitoring of power amplifier, before sound control system calculates the temperature change rate of power amplifier, sound control system obtains predetermined stereo set workspace's ambient temperature through placing the temperature sensor outside the stereo set earlier, compare the operating temperature of power amplifier and sound workspace's ambient temperature again, when the operating temperature of power amplifier is not less than ambient temperature, according to predetermined calculation rule again, calculate the temperature change rate of power amplifier.
During calculation, the sound control system firstly takes a preset time length as a single period, for example, one minute as one period, and divides the temperature variation of the power amplifier by the preset time length to obtain the temperature variation rate in the period within each one minute after the sound equipment is started, and a preset temperature variation standard rate is correspondingly set in each period by a manufacturer according to the use records of the sound equipment of the same batch and the same model.
In every cycle, the sound control system compares the temperature change rate of the power amplifier with the temperature change standard rate corresponding to the cycle, if the temperature change rate is greater than the temperature change standard rate in a certain cycle, the power amplifier is judged to be abnormal in work, an early warning prompt is sent out, and when the early warning prompt is sent out, the corresponding warning lamp on the sound shell can be controlled by the sound control system to flicker so as to remind a user of overhauling.
When the working temperature of the power amplifier is higher than the preset critical temperature and lower than the preset temperature threshold value, the sound control system controls the self-contained radiator in the sound equipment to be electrified so as to perform good heat dissipation on the power amplifier.
The implementation principle of the embodiment of the application is as follows: when the working temperature of the power amplifier in the sound equipment reaches a preset temperature threshold value, the sound control system reduces the output power of the power amplifier according to a preset power attenuation step length, and can schedule the rest sound equipment in an idle state to ensure that the decibel value at a preset sound receiving point is equal to the initial decibel value, so that the normal use of the sound equipment is ensured while the sound equipment is protected from overheating, and the experience of a user is improved.
Based on the above method, the embodiment of the present application further discloses a sound control system, where the sound control system includes a control center and a plurality of sound devices, where:
the control center is used for periodically acquiring the characteristic information of each sound equipment after the power amplifier is started;
the device is also used for comparing the working temperature of the power amplifier with a preset temperature threshold;
the power amplifier is also used for adjusting the output power of the power amplifier according to a preset power attenuation step length when the working temperature of a certain power amplifier is not less than a preset temperature threshold value;
the device is also used for selecting a target sound from the sound equipment in the idle state, sending a starting instruction to the target sound, and gradually increasing the output power of the target sound until the decibel value of the decibel tester is equal to the initial decibel value; the processing module is also used for selecting a corresponding processing mode according to the magnitude relation among the working temperature of the power amplifier, a preset critical temperature and a preset temperature threshold value;
the power amplifier is also used for adjusting the output power of the power amplifier in the target sound equipment according to the preset power attenuation step length and continuously selecting the target sound equipment when the service temperature of the power amplifier in the target sound equipment is not less than the corresponding preset temperature threshold value;
and after the preset waiting time, if the working temperature of the power amplifier is not less than the preset temperature threshold, continuously adjusting the output power of the power amplifier according to the preset power attenuation step length.
The embodiment of the application also discloses computer equipment.
Specifically, the device comprises a memory and a processor, wherein the memory stores a computer program which can be loaded by the processor and executes the sound high-temperature protection method and the sound high-temperature protection system.
The embodiment of the application also discloses a computer readable storage medium.
Specifically, the computer readable storage medium stores a computer program capable of being loaded by a processor and executing the sound high temperature protection method and system, and the computer readable storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A sound high temperature protection method, characterized in that the method is based on a sound control system, the sound control system comprises a control center and a plurality of sound equipment, and the method comprises the following steps:
the control center periodically acquires characteristic information of each sound equipment after the power amplifier is started, wherein the characteristic information comprises the working temperature and the output power of the power amplifier;
comparing the working temperature of the power amplifier with a preset temperature threshold;
and when the working temperature of a certain power amplifier is not less than a preset temperature threshold value, adjusting the output power of the power amplifier according to a preset power attenuation step length.
2. The method according to claim 1, wherein the sound control system further comprises a decibel tester disposed at a predetermined sound receiving point, and after the adjusting the output power of the power amplifier according to a predetermined power attenuation step, the method further comprises:
acquiring an initial decibel value of a preset sound receiving point after the sound equipment is started, decibel values after the power amplifier adjusts output power and working states of all the sound equipment, wherein the working states comprise working and idle states;
selecting a target sound from all the sound equipment in an idle state according to a preset selection rule;
and sending a starting instruction to the target sound, and gradually increasing the output power of the target sound until the decibel value of the decibel tester is equal to the initial decibel value.
3. The method as claimed in claim 2, wherein the selecting a target sound from all the sound devices in an idle state according to a preset selection rule comprises:
acquiring distance values between all the sound equipment in an idle state and a preset sound receiving point;
and preferentially setting the sound equipment which corresponds to the minimum distance value and is in an idle state as the target sound.
4. The method of claim 3, wherein after the sound equipment corresponding to the minimum distance value and in the idle state is preferentially set as the target sound equipment, the method further comprises:
sequencing all the rest sound equipment in an idle state according to the size of the distance value from small to large, and generating a sequencing table;
comparing the use temperature of the power amplifier in the target sound equipment with a corresponding preset temperature threshold value in real time, and if the use temperature of the power amplifier in the target sound equipment is not less than the corresponding preset temperature threshold value, adjusting the output power of the power amplifier in the target sound equipment according to a preset power attenuation step length;
and sequentially selecting other sound equipment in an idle state from the sequencing list as target sound.
5. The method of claim 1, wherein a plurality of the audio devices are deployed in a predetermined audio workspace, the method further comprising:
acquiring the ambient temperature of the sound equipment working space;
when the working temperature of the power amplifier is not less than the environmental temperature, comparing the working temperature of the power amplifier with a preset critical temperature, wherein the value of the preset critical temperature is less than a preset temperature threshold value;
if the working temperature of the power amplifier is not higher than a preset critical temperature, calculating the temperature change rate of the power amplifier according to a preset calculation rule;
and comparing the temperature change rate of the power amplifier with a preset temperature change standard rate, and if the temperature change rate of the power amplifier is greater than the temperature change standard rate, judging that the power amplifier works abnormally.
6. The method of claim 5, wherein if the operating temperature of the power amplifier is not greater than a preset critical temperature, calculating the temperature change rate of the power amplifier according to a preset calculation rule comprises:
and if the working temperature of the power amplifier is not greater than the preset critical temperature, taking the preset time length as a single period, and in each period, dividing the temperature variation of the power amplifier by the preset time length to obtain the temperature variation rate in the corresponding period.
7. The method of claim 1, further comprising, after adjusting the output power of the power amplifier according to a preset power attenuation step size:
after a preset waiting time, if the working temperature of the power amplifier is not less than a preset temperature threshold, continuously adjusting the output power of the power amplifier according to a preset power attenuation step length;
counting the total times of the power amplifier for adjusting the output power;
and comparing the total times with a preset time threshold, and if the total times is not less than the preset time threshold, judging that the power amplifier works abnormally.
8. A sound control system characterized by comprising a control center and a plurality of sound devices, wherein:
the control center is used for periodically acquiring characteristic information of each sound equipment after the power amplifier is started, wherein the characteristic information comprises the working temperature and the output power of the power amplifier;
the control center is used for comparing the working temperature of the power amplifier with a preset temperature threshold value;
and the control center is used for adjusting the output power of the power amplifier according to a preset power attenuation step length when the working temperature of a certain power amplifier is not less than a preset temperature threshold value.
9. A computer device, characterized by: comprising a memory and a processor, said memory having stored thereon a computer program that can be loaded by the processor and that executes the method and system for acoustic hyperthermia protection according to any of claims 1 to 7.
10. A computer-readable storage medium storing a computer program that can be loaded by a processor and that executes the method and system for acoustic high temperature protection according to any one of claims 1 to 7.
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