CN118158646B - Method, system, equipment and storage medium for quickly starting projection system - Google Patents
Method, system, equipment and storage medium for quickly starting projection system Download PDFInfo
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- CN118158646B CN118158646B CN202410258633.6A CN202410258633A CN118158646B CN 118158646 B CN118158646 B CN 118158646B CN 202410258633 A CN202410258633 A CN 202410258633A CN 118158646 B CN118158646 B CN 118158646B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H—ELECTRICITY
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Abstract
The application relates to a quick starting method, a system, equipment and a storage medium of a projection system, wherein when a projector is started, a main control chip of the projector powers down and resets an internal Bluetooth module, so that the Bluetooth module can be directly connected with external equipment, and the external equipment is used as a signal source to directly drive the Bluetooth module, thereby playing audio. After the projector is started, the playing progress of the audio file is obtained, and the target audio file is obtained from the external device according to the playing progress, so that the signal source is switched back to the projector. Through the switching process, the application solves the technical problem that the internal Bluetooth sound box cannot be used when the projector is started, and realizes no sense in the whole playing process, and the playing process cannot change along with the switching of the equipment, thereby saving a great amount of time for users.
Description
Technical Field
The invention relates to the technical field of sound boxes, in particular to a method, a system, equipment and a storage medium for quickly starting a projection system.
Background
Existing projectors are basically built-in with sound equipment, such as a bluetooth sound system. And most of the current projectors are also controlled based on an android system. Therefore, when the projector is started, because the Bluetooth sound box is integrated inside the projector, a user needs to remotely control to enter a Bluetooth sound box mode after waiting for the android system to start up, and the overall operation time exceeds 30 seconds.
Therefore, the current projector needs to be turned on for 30 seconds to access the audio source. A great deal of time is wasted for the user to normally use the projector and the internal bluetooth speaker.
Disclosure of Invention
Therefore, the present invention is directed to a method, a system, a device and a storage medium for fast starting a projection system, so as to solve the problem of waiting time waste of an internal sound box of a projector in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention discloses a rapid starting method of a projection system, which comprises the following steps:
In the starting-up process of the projector, a power-down signal and a reset signal are sent to a Bluetooth module of a sound box in the projector, so that the Bluetooth module is reset after power-down;
Receiving an audio file of external equipment based on the reset Bluetooth module, and playing the audio file sent by the external equipment based on the reset Bluetooth module so as to switch the information source of the Bluetooth sound box to the external equipment;
When the starting-up process of the projector is finished, acquiring the playing progress of the audio file, and requesting a target audio file from the external device based on the playing progress, wherein the projector is connected with the external device in advance;
And when receiving a target audio file from the external equipment, switching the information source of the Bluetooth sound box to a projector based on the target audio file.
In an embodiment of the present application, the receiving, based on the reset bluetooth module, an audio file of an external device includes:
Pairing with external equipment based on the reset Bluetooth module;
And when the pairing is successful, receiving the audio file from the external device.
In an embodiment of the present application, playing an audio file sent by an external device based on a reset bluetooth module includes:
decoding the audio file sequence sent by the external equipment based on the reset Bluetooth module to obtain a decoding signal;
transmitting the decoded signal to a preset power amplification module for power amplification to obtain an amplified signal;
And driving a preset loudspeaker based on the amplified signal so as to play the audio file.
In an embodiment of the present application, requesting a target audio file from the external device based on the playing progress includes:
Determining a code rate C of the audio file and a current playing time point T 0 in the playing progress;
Testing channels of the projector and the external equipment to obtain a current transmission speed V 1;
Determining a first requested audio file based on the code rate C of the audio file, the current transmission speed V 1 and the current playing time point T 0, wherein a starting time point T B1 and an ending time T E1 of the first requested audio file satisfy:
TB1＝T0+Tt1+TR
Tmin≤Tt1≤Tmax
Wherein, T t1 is the transmission time length of the first request, T R is the redundancy time length, T min is the minimum transmission time length, and T max is the maximum transmission time length;
Judging whether the audio file is transmitted completely, if yes, requesting a target audio file from the external equipment based on the requested audio file; if not, determining the next requested audio file based on the code rate C of the audio file, the current transmission speed V 1 and the end time T E1, wherein the start time point T B2 and the end time T E2 of the next requested audio file satisfy:
TB2＝T0+Tt1+TR+T2
Tt2≤TE1-TB1
Wherein, T t2 is the transmission time length of the second request;
returning to whether the audio file is transmitted completely or not, and executing circularly until all the requests contain the whole content of the audio file, and requesting the target audio file from the external equipment based on all the requests.
In an embodiment of the present application, testing channels of the projector and the external device to obtain a current transmission speed V 1 includes:
The main control chip of the projector is controlled to send a test data packet to the external equipment for a plurality of times, and the sending time T si is recorded, wherein the size of the test data packet is D;
Recording the receiving time T ri of the return data when the return data from the external device is received;
Calculating a current transmission speed V 1 based on the plurality of transmission times T si, the plurality of reception times T ri, and the size D of the test packet;
where n is the number of transmissions and i is the number of single transmissions.
In an embodiment of the present application, switching the source of the bluetooth speaker to a projector based on the target audio file includes:
decoding the received target audio file according to the time sequence to obtain a decoded target audio file;
And when the playing progress reaches the starting point of the decoded target audio file, playing the decoded target audio file so as to switch the information source to the projector.
In an embodiment of the present application, the audio file is an audio file in a separate audio file or a video file, and when the audio file is an audio file in a video file, the method further includes:
Requesting a target video file from the external device based on the play progress;
And when receiving the target video file from the external equipment, switching the information source of the Bluetooth sound box to a projector based on the target video file.
The application also provides a rapid starting system of the projection system, which comprises:
the reset module is used for sending a power-down signal and a reset signal to the Bluetooth module of the sound box in the projector in the starting process of the projector so as to reset the Bluetooth module after the Bluetooth module is powered down;
The first switching module is used for receiving the audio file of the external equipment based on the reset Bluetooth module, and playing the audio file sent by the external equipment based on the reset Bluetooth module so as to switch the information source of the Bluetooth sound box to the external equipment;
The request module is used for acquiring the playing progress of the audio file when the starting-up process of the projector is finished, and requesting a target audio file from the external equipment based on the playing progress, wherein the projector is connected with the external equipment in advance;
and the second switching module is used for switching the information source of the Bluetooth sound box to the projector based on the target audio file when the target audio file from the external equipment is received.
The application also provides an electronic device comprising:
one or more processors;
And storage means for storing one or more programs that, when executed by the one or more processors, cause the electronic device to implement a method of fast start-up of a projection system as described above.
The present application also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor of a computer, causes the computer to perform a method of fast start-up of a projection system as described above.
The beneficial effects of the application are as follows: according to the quick starting method, system, equipment and storage medium of the projection system, when the projector is started, the projector main control chip powers down and resets the internal Bluetooth module, so that the Bluetooth module can be directly connected with external equipment, and the external equipment is used as a signal source to directly drive the Bluetooth module, so that audio is played. After the projector is started, the playing progress of the audio file is obtained, and the target audio file is obtained from the external device according to the playing progress, so that the signal source is switched back to the projector. Through the switching process, the application solves the technical problem that the internal Bluetooth sound box cannot be used when the projector is started, and realizes no sense in the whole playing process, and the playing process cannot change along with the switching of the equipment, thereby saving a great amount of time for users.
Drawings
The invention is further described below with reference to the accompanying drawings and examples:
FIG. 1 is an operational scenario diagram illustrating a method of fast start-up of a projection system according to one embodiment of the present application;
FIG. 2 is a flowchart of a method for fast start-up of a projection system according to an embodiment of the present invention;
FIG. 3 is a flow chart of a file request process according to an embodiment of the application;
FIG. 4 is a block diagram of a fast start system for a projection system according to one embodiment of the present invention.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention by way of illustration, and only the layers related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the layers in actual implementation, and the form, number and proportion of the layers in actual implementation may be arbitrarily changed, and the layer layout may be more complex.
In the following description, numerous details are discussed to provide a more thorough explanation of embodiments of the present invention, however, it will be apparent to one skilled in the art that embodiments of the present invention may be practiced without these specific details.
Fig. 1 is an operation scene diagram of a fast starting method of a projection system according to an embodiment of the present application, as shown in fig. 1, a projector according to the present application adopts an android system, so that an android system main control chip is required, and when the projector is started, a startup process is executed through the android system main control chip, and the model of the android system main control chip may be AD82072.
In addition, the projector is internally integrated with a Bluetooth sound box, so the application also comprises a Bluetooth module, wherein the Bluetooth module comprises a Bluetooth decoding chip and an antenna connected to the Bluetooth decoding chip. The Bluetooth decoding chip is used for decoding the Bluetooth signals.
In addition, the application also provides a power amplification module (power amplification AMP) which is used for amplifying the power of the decoded Bluetooth signal and finally driving the loudspeaker through the amplified signal.
In the application, the projection system is plugged into a power supply from a power-off state, then when the projection system is started in a standby state through a remote control or a key, a user needs to quickly enter a sound box mode, and then the key of the sound box mode is pressed;
When the scheme is just started, if a sound box mode needs to be entered, a PD (Powerdown signal) and a Reset signal are sent to the Bluetooth decoding chip by the android system main control chip, the android system main control chip is confirmed to prepare OK, and then the Bluetooth decoding chip starts to work, and the process needs about 2 seconds; the connected mobile phone or other audio equipment is connected back, and control signals such as PD1, RESET1, I2C and the like are synchronously output to the power amplifier AMP; finally, outputting an I2S audio signal to a power amplifier AMP for amplifying and outputting, and driving a loudspeaker to output sound (about 2 seconds is needed in the process);
If the android system main control chip is started normally, SPDIF digital audio signals can be output normally (about 30 seconds is needed in the process), audio files input by external equipment are decoded by the Bluetooth decoding chip, and then I2S audio signals are output to the power amplifier AMP for amplification output, and horn sound output is driven (about 2 seconds is needed in the process); and in the system starting process, the android system main control chip synchronously outputs to the Bluetooth decoding chip, and finally the Bluetooth decoding chip outputs PD1, RESET1 and I2C control signals to the power amplifier AMP control time sequence.
FIG. 2 is a flow chart of a method of fast start-up of a projection system according to one embodiment of the present application, as shown in FIG. 2: the method comprises the following steps:
S210, in the starting-up process of the projector, sending a power-down signal and a reset signal to a Bluetooth module of a sound box in the projector so as to reset the Bluetooth module after power-down;
In the application, the android main control chip and the Bluetooth decoding chip are paired in advance. Therefore, during the power-on process, the bluetooth decoding chip cannot be paired with an external device and transmit files. According to the application, the android system main control chip sends the PD (Powerdown signal) and the Reset signal to the Bluetooth decoding chip, so that the Bluetooth decoding chip is Reset after power-down. The Bluetooth decoding chip is decoupled from the android system master control system chip at the moment. The Bluetooth decoding chip can be paired with an external device and used for file transmission.
S220, receiving an audio file of the external device based on the reset Bluetooth module, and playing the audio file sent by the external device based on the reset Bluetooth module so as to switch the information source of the Bluetooth sound box to the external device;
After the Bluetooth decoding chip is reset, the Bluetooth decoding chip can be paired with external equipment and used for file transmission, and the Bluetooth decoding chip specifically comprises: pairing with external equipment based on the reset Bluetooth module; and when the pairing is successful, receiving the audio file from the external device.
In this embodiment, the external device may be a supporting device of the projector, such as a notebook, a PC host, and the like. Since the notebook, PC host, etc. devices themselves need to be connected to the projector for use. Therefore, at this time, the background automatically performs pairing with the bluetooth module (the external device is paired with the bluetooth module in advance, and thus pairing can be performed automatically).
After the matching is successful, the audio files in the external equipment can be directly played through the Bluetooth module and the power amplifier module without being processed by a projector system, and the external equipment, the Bluetooth module and the power amplifier module are used for processing the audio files at the moment.
When playing, decoding the audio file sequence sent by the external equipment based on the reset Bluetooth module to obtain a decoding signal; the Bluetooth decoding chip sends the decoding signal to a preset power amplification module for power amplification to obtain an amplified signal; and finally, driving a preset loudspeaker based on the amplified signal so as to play the audio file.
S230, when the starting-up process of the projector is finished, acquiring the playing progress of the audio file, and requesting a target audio file from the external device based on the playing progress, wherein the projector is connected with the external device in advance;
After the projector is powered on, the audio file continues to play. Thus, if source switching is required without sense, the source is switched back to the projector (the projector enters normal operation mode). It is necessary to determine the progress of playing the audio file and then perform file transmission and switching according to the progress of playing. Because the projector adopts the android system, the projector can store audio files and process files. Thus, the present application switches in such a way that the target audio file is stored in the projector.
Fig. 3 is a flowchart of a file request process in an embodiment of the present application, as shown in fig. 3, an audio file in the present application adopts a segmented request, so that a source can be switched back to a projector system in a shortest time to release an operation pressure of an external device, and a problem of asynchronous audio and video caused by playing with different devices for a long time when the audio file comes from a video can be avoided. And simultaneously, the current playing progress can be always maintained. The specific process comprises the following steps:
(1) Determining a code rate C of the audio file and a current playing time point T 0 in the playing progress; the video code rate is the number of data bits transmitted per unit time during data transmission, and the unit is kbps, i.e. kilobits per second. The relation between the code rate and the file size is: code rate (kbps) =file size (KB) ×8/time (sec);
(2) Testing channels of the projector and the external equipment to obtain a current transmission speed V 1; the current transmission speed V 1 is the transmission speed in the current connection mode, and because the projector and the external equipment can be connected by wires or can be connected by wireless, the transmission speeds of different connection modes have large difference, therefore, the speed measurement is needed, and the current transmission speed is determined;
(3) Determining a first requested audio file based on the code rate C of the audio file, the current transmission speed V 1 and the current playing time point T 0, wherein a starting time point T B1 and an ending time T E1 of the first requested audio file satisfy:
TB1＝T0+Tt1+TR
Tmin≤Tt1≤Tmax
Wherein, T t1 is the transmission time length of the first request, T R is the redundancy time length, T min is the minimum transmission time length, and T max is the maximum transmission time length;
The first transmission time length is set manually, and in order to switch the information source as soon as possible, the normal operation of the projector is ensured. The application sets the first transmission time length T t1 between 1 and 5S, namely T min is 1S, T max is 5S, and the value is taken on the basis of the current transmission speed V 1, wherein the higher the current transmission speed V 1 is, the larger amount of data can be transmitted in a period of time, and the smaller the value of the first requested transmission time length T t1 is. Therefore, the information source switching can be performed after 1S, and the enough subsequent playing time is ensured; conversely, the larger the transmission time period T t1 of the first request is.
After the transmission duration T t1 of the first request is determined, the data volume V 1×Tt1 of the first transmission file may be determined,
The start time T B1 of the first transmission file is a transmission time T t1 after the current play time point T 0, but the present application also sets a redundancy period T R in order to prevent the influence of network fluctuations. In the subsequent playing process, when the playing progress reaches the starting time point T B1, the switching is automatically executed.
(4) Judging whether the audio file is transmitted completely, if yes, requesting a target audio file from the external equipment based on the requested audio file; if not, determining the next requested audio file based on the code rate C of the audio file, the current transmission speed V 1 and the end time T E1, wherein the start time point T B2 and the end time T E2 of the next requested audio file satisfy:
TB2＝T0+Tt1+TR+Tt2
Tt2≤TE1-TB1
Wherein, T t2 is the transmission time length of the second request;
In this embodiment, if the first transmission is not completed for all audio files. Then the second request and transmission continues with the beginning T B2 of the second requested audio file and the time T t2 of the second transmission is increased based on the beginning of the first transmission. The time T t2 of the second transmission needs to be within the play time of the first transmission audio file, i.e. T t2≤TE1-TB1. Data volume formula combining second transmission audio file playing start time T B2 and playing end time T E2 The start time point T B2 and the end time T E2 of the audio file to be requested next can be found.
(5) Returning to the step (4), namely, whether the audio file is transmitted completely or not, and executing circularly until all the requests contain the whole content of the audio file, and requesting the target audio file from the external device based on all the requests.
The application segments by repeating the step (4), and generally, all audio files can be transmitted to the projector for storage by 2-3 times of transmission. Therefore, the original playing progress is kept, the noninductive information source switching is realized, the time is saved, and the normal operation of the projector can be ensured.
The audio file may be a separate audio file or an audio file in video. When the audio file is an audio file in a video file, the method further comprises:
Requesting a target video file from the external device based on the play progress;
And when receiving the target video file from the external equipment, switching the information source of the Bluetooth sound box to a projector based on the target video file.
When the audio file is an audio file in the video file, the audio files in the steps (1) - (5) are replaced by the video file.
S240, when a target audio file from the external equipment is received, switching the information source of the Bluetooth sound box to a projector based on the target audio file.
After requesting the audio file, the external device sends the audio file slice to the projector. The projector caches the audio file and then performs playback, and since the sound source of the first half is an external device, the sound source of the second half is directly from the internal storage of the projector. Therefore, when the playing time of the part taking the external equipment as the information source is about to end, the target audio file in the cache can be preloaded, and then the audio file is directly switched when the playing time reaches the starting time point of the target audio file, so that the non-sense switching is realized, and the method specifically comprises the following steps:
decoding the received target audio file according to the time sequence to obtain a decoded target audio file;
And when the playing progress reaches the starting point of the decoded target audio file, playing the decoded target audio file so as to switch the information source to the projector.
In an embodiment of the present application, testing channels of the projector and the external device to obtain a current transmission speed V 1 includes:
The main control chip of the projector is controlled to send a test data packet to the external equipment for a plurality of times, and the sending time T si is recorded, wherein the size of the test data packet is D;
Recording the receiving time T ri of the return data when the return data from the external device is received;
Calculating a current transmission speed V 1 based on the plurality of transmission times T si, the plurality of reception times T ri, and the size D of the test packet;
where n is the number of transmissions and i is the number of single transmissions.
In the application, the network speed test is carried out by sending the test data packet, and meanwhile, the average value is obtained by multiple tests, so that the test result is more accurate.
According to the quick starting method of the projection system, when the projector is started, the projector main control chip powers down and resets the internal Bluetooth module, so that the Bluetooth module can be directly connected with external equipment, and the external equipment is used as a signal source to directly drive the Bluetooth module, so that audio is played. After the projector is started, the playing progress of the audio file is obtained, and the target audio file is obtained from the external device according to the playing progress, so that the signal source is switched back to the projector. Through the switching process, the application solves the technical problem that the internal Bluetooth sound box cannot be used when the projector is started, and realizes no sense in the whole playing process, and the playing process cannot change along with the switching of the equipment, thereby saving a great amount of time for users.
As shown in fig. 4, the present application further provides a quick start system of a projection system, including:
the reset module is used for sending a power-down signal and a reset signal to the Bluetooth module of the sound box in the projector in the starting process of the projector so as to reset the Bluetooth module after the Bluetooth module is powered down;
The first switching module is used for receiving the audio file of the external equipment based on the reset Bluetooth module, and playing the audio file sent by the external equipment based on the reset Bluetooth module so as to switch the information source of the Bluetooth sound box to the external equipment;
The request module is used for acquiring the playing progress of the audio file when the starting-up process of the projector is finished, and requesting a target audio file from the external equipment based on the playing progress, wherein the projector is connected with the external equipment in advance;
and the second switching module is used for switching the information source of the Bluetooth sound box to the projector based on the target audio file when the target audio file from the external equipment is received.
According to the rapid starting system of the projection system, when the projector is started, the projector main control chip powers down and resets the Bluetooth module, so that the Bluetooth module can be directly connected with external equipment, and the external equipment is used as a signal source to directly drive the Bluetooth module, so that audio is played. After the projector is started, the playing progress of the audio file is obtained, and the target audio file is obtained from the external device according to the playing progress, so that the signal source is switched back to the projector. Through the switching process, the application solves the technical problem that the internal Bluetooth sound box cannot be used when the projector is started, and realizes no sense in the whole playing process, and the playing process cannot change along with the switching of the equipment, thereby saving a great amount of time for users.
The present embodiment also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements any of the methods of the present embodiments, wherein the method is the execution logic of the present apparatus.
The embodiment also provides an electronic terminal, including: a processor and a memory;
The memory is used for storing a computer program, and the processor is used for executing the computer program stored in the memory, so that the terminal executes any one of the methods in the embodiment.
The computer readable storage medium in this embodiment, as will be appreciated by those of ordinary skill in the art: all or part of the steps for implementing the method embodiments described above may be performed by computer program related hardware. The aforementioned computer program may be stored in a computer readable storage medium. The program, when executed, performs steps including the method embodiments described above; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.
The electronic terminal provided in this embodiment includes a processor, a memory, a transceiver, and a communication interface, where the memory and the communication interface are connected to the processor and the transceiver and complete communication with each other, the memory is used to store a computer program, the communication interface is used to perform communication, and the processor and the transceiver are used to run the computer program, so that the electronic terminal performs each step of the above method.
In this embodiment, the memory may include a random access memory (Random Access Memory, abbreviated as RAM), and may further include a non-volatile memory (non-volatile memory), such as at least one disk memory.
The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, abbreviated as CPU), a network processor (Network Processor, abbreviated as NP), etc.; but may also be a digital signal processor (DIGITAL SIGNAL Processing, DSP), application Specific Integrated Circuit (ASIC), field-Programmable gate array (FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components.
In the above embodiments, while the present invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description. The embodiments of the invention are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. A method for rapid start-up of a projection system, comprising:
In the starting-up process of the projector, a power-down signal and a reset signal are sent to a Bluetooth module of a sound box in the projector, so that the Bluetooth module is reset after power-down;
Receiving an audio file of the external device based on the reset Bluetooth module, and playing the audio file sent by the external device based on the reset Bluetooth module so as to switch the information source of the Bluetooth sound box to the external device;
When the starting-up process of the projector is finished, acquiring the playing progress of the audio file, and requesting a target audio file from the external device based on the playing progress, wherein the projector is connected with the external device in advance;
And when receiving a target audio file from the external equipment, switching the information source of the Bluetooth sound box to a projector based on the target audio file.
2. The method of claim 1, wherein receiving the audio file of the external device based on the reset bluetooth module, comprises:
Pairing with external equipment based on the reset Bluetooth module;
And when the pairing is successful, receiving the audio file from the external device.
3. The method for quickly starting up a projection system according to claim 1, wherein playing an audio file sent by an external device based on the reset bluetooth module comprises:
decoding the audio file sequence sent by the external equipment based on the reset Bluetooth module to obtain a decoding signal;
transmitting the decoded signal to a preset power amplification module for power amplification to obtain an amplified signal;
And driving a preset loudspeaker based on the amplified signal so as to play the audio file.
4. The method of claim 1, wherein requesting the target audio file from the external device based on the progress of playing comprises:
Determining a code rate of the audio file And a current play time point in the play progress；
Testing channels of the projector and the external equipment to obtain the current transmission speed；
Code rate based on the audio fileThe current transmission speedThe current play time pointDetermining a first requested audio file, a starting point in time of the first requested audio fileAnd end timeThe method meets the following conditions: In the method, in the process of the invention, For a set transmission duration of the first request,For the duration of the redundancy it is,In order to set the minimum transmission duration,The maximum transmission time is set; judging whether the audio file is transmitted completely, if yes, requesting a target audio file from the external equipment based on the requested audio file; if not, based on the code rate of the audio fileThe current transmission speedThe end timeDetermining a next requested audio file, a starting point in time of the next requested audio fileAnd end timeThe method meets the following conditions: In the method, in the process of the invention, The transmission duration of the second request;
returning to whether the audio file is transmitted completely or not, and executing circularly until all the requests contain the whole content of the audio file, and requesting the target audio file from the external equipment based on all the requests.
5. The method of claim 4, wherein the channel between the projector and the external device is tested to obtain the current transmission speedComprising:
the main control chip of the projector is controlled to send test data packets to the external equipment for a plurality of times, and the sending time is recorded Wherein the size of the test data packet is as follows；
Recording the receiving time of the return data when the return data from the external device is received；
Based on multiple transmission timesMultiple times of receptionAnd test packet sizeCalculating the current transmission speed；In the method, in the process of the invention,In order to transmit the number of times,Is the sequence number of a single transmission.
6. The method of claim 1, wherein switching the source of the bluetooth speaker to the projector based on the target audio file comprises:
decoding the received target audio file according to the time sequence to obtain a decoded target audio file;
And when the playing progress reaches the starting point of the decoded target audio file, playing the decoded target audio file so as to switch the information source to the projector.
7. The method for quickly starting up a projection system according to claim 1, wherein the audio file is a separate audio file or an audio file in a video file, and when the audio file is an audio file in a video file, further comprising:
Requesting a target video file from the external device based on the play progress;
And when receiving the target video file from the external equipment, switching the information source of the Bluetooth sound box to a projector based on the target video file.
8. A rapid start system for a projection system, comprising:
the reset module is used for sending a power-down signal and a reset signal to the Bluetooth module of the sound box in the projector in the starting process of the projector so as to reset the Bluetooth module after the Bluetooth module is powered down;
The first switching module is used for receiving the audio file of the external equipment based on the reset Bluetooth module, and playing the audio file sent by the external equipment based on the reset Bluetooth module so as to switch the information source of the Bluetooth sound box to the external equipment;
The request module is used for acquiring the playing progress of the audio file when the starting-up process of the projector is finished, and requesting a target audio file from the external equipment based on the playing progress, wherein the projector is connected with the external equipment in advance;
and the second switching module is used for switching the information source of the Bluetooth sound box to the projector based on the target audio file when the target audio file from the external equipment is received.
9. An electronic device, the electronic device comprising:
one or more processors;
storage means for storing one or more programs that, when executed by the one or more processors, cause the electronic device to implement a method of fast start-up of a projection system as claimed in any one of claims 1 to 7.
10. A computer readable storage medium, having stored thereon a computer program which, when executed by a processor of a computer, causes the computer to perform a method of fast start-up of a projection system according to any of claims 1 to 7.
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| CN110851184A (en) * | 2019-09-29 | 2020-02-28 | 深圳市火乐科技发展有限公司 | Management method of sound box of intelligent projector and related product |
| CN113709557A (en) * | 2021-08-25 | 2021-11-26 | Vidaa美国公司 | Audio output control method and display device |
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| KR101653605B1 (en) * | 2014-08-11 | 2016-09-08 | 주식회사 에펠텍 | Wireless speaker embedded with beam projector to communicate with protable terminal and method thereof |
| CN113923473A (en) * | 2021-09-28 | 2022-01-11 | 安徽听见科技有限公司 | Video and audio playing method and device, electronic equipment and storage medium |
| CN114513773A (en) * | 2022-01-25 | 2022-05-17 | 深圳市飞科笛系统开发有限公司 | Audio playing method, system, audio playing device and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110851184A (en) * | 2019-09-29 | 2020-02-28 | 深圳市火乐科技发展有限公司 | Management method of sound box of intelligent projector and related product |
| CN113709557A (en) * | 2021-08-25 | 2021-11-26 | Vidaa美国公司 | Audio output control method and display device |
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