CN1979383A - Computer system and music playing method - Google Patents

Abstract

The invention relates to a computer system and the music playback method thereof. And the method comprises the steps of: electrifying microcontrol unit music plackback unit and nonvolatile memory unit; the microcontrol unit controls the music playback unit to play back the music files in the nonvolatile memory unit; when executing the music playback operation, CPU and harddisk in the computer system can be kept in power-off state. Thus, it can use memory unit with lower power consumption to store music files and control music playback by microcontrol unit with lower power consumption and besides, display the music related data on a second display screen with lower power consumption, thus largely reducing system power consumption and prolonging the service life of the system battery.

Description

Computer system and music playing method thereof

【Technical field】

The invention relates to a computer system power saving technology, especially a computer system capable of playing music, which can only provide the power required for playing music in the shutdown state and power saving mode.

【Background technique】

For computer users, portable computers are an increasingly popular product. Portable computers have the advantage of being easy to carry, and therefore consumers require batteries for portable computers to have a longer working time. There are generally two ways to make the battery of the portable computer have a longer working time: one is to increase the capacity of the battery, and the other is to reduce the power consumption of the portable computer when it is in use. However, if the battery of a portable computer is fixed, then the battery capacity is also fixed, and increasing the battery capacity can only be obtained by replacing a battery with a larger capacity, which will bring additional economic expenses to the user, and in fact even if the battery is constantly replaced Large-capacity batteries cannot meet users' requirements for longer and longer usage times. Therefore how to reduce the power consumed when the portable computer is in use is a key way to prolong the battery life of the portable computer.

In a portable computer, the central processing unit is the most power-hungry element in the entire computer system. And CPU manufacturers also offer many ways to save the power consumed by the CPU. For example: by changing the operating clock frequency in the central processing unit. In addition, the working voltage of the central processing unit can also be changed. When the central processing unit operates at a lower clock frequency or a lower operating voltage, it reduces the power it consumes.

However, in a portable computer, in addition to the central processing unit being the most power-consuming component, the hard disk and the display screen are also components that consume a lot of power. Therefore, if the working times of these components can be reduced, a large amount of electricity can also be saved. A conventional method for saving power is to provide a power saving mode in the portable computer system, that is, when the computer is not used for a period of time, the power supply to the internal components of the computer is suspended to save power and extend the working time of the battery.

Generally speaking, in the power saving mode, the central processing unit will store the state of the computer at the time into the storage unit. Thereafter, the central processing unit enters a waiting state. In the waiting state, the power supply of the display screen of the portable computer will be turned off, the rotation speed of the hard disk will slow down, the system bus will enter an idle state, and the DRAM will also be in a self-renewal mode. When the user operates the computer, that is, any external action, such as an instruction from the keyboard or a pointing component, will "wake up" the computer to resume normal mode, that is, start the computer and supply power to all its internal components: make the system bus follow The dynamic random storage unit restores the original working state, and the central processing unit leaves the waiting state. Afterwards, the central processing unit turns on the power supply of the display screen, increases the rotation speed of the hard disk and restores the previous state of the central processing unit, and continues to execute the actions that have not been completed when entering the power saving mode.

However, when the portable computer only plays music, the power can be saved by lowering the clock frequency and operating voltage of the central processing unit. However, even if the central processing unit works with a lower clock frequency and operating voltage, it still consumes a lot of power, and usually in the process of playing music, the computer system needs to frequently read the music data in the hard disk, so it cannot be truly played. To achieve the purpose of saving a lot of power. In addition, when the user wants to obtain timely information when the music is playing, the portable computer displays it through a display screen that consumes a lot of power, which also cannot save power.

【Content of invention】

Based on the above, it is necessary to provide a computer system, which can store music files with a storage unit with less power consumption when the system central processing unit and hard disk power are turned off, and adopt a micro control unit with less power consumption Control music playback, thereby greatly reducing the power consumption of the computer system and extending the battery life of the computer system.

It is also necessary to provide a music playing method, which can use a storage unit with less power consumption to store music files when the central processing unit of the computer system and the hard disk are powered off, and use a micro control unit with less power consumption to control the music file. Music playback, thereby greatly reducing the power consumption of the computer system and extending the battery life of the computer system.

The computer system includes a central processing unit, a hard disk, a first display screen, a volatile storage unit, a music player unit and a micro control unit. Wherein the non-volatile storage unit is used to store music files; the music playback unit is used to play music files; the micro control unit is used to control the non-volatile storage unit and the music playback unit to perform music playback operations in the shutdown state or power saving mode .

The computer system further includes a feature that: the computer system also includes a second display screen for displaying music-related data when playing music; a button is used for generating a play instruction for performing a music play operation; when the computer system is in a shutdown state and receives When the play command is received, the power-on micro-control unit, the music play unit, the non-volatile storage unit and the second display screen perform the music play operation; when the computer system receives the play command in the normal working mode, the central processing unit reads the Music files are stored in the hard disk and stored in the non-volatile storage unit, and the power-on micro-control unit, music playback unit, non-volatile storage unit and second display screen perform music playback operations; when the computer system is in the power-saving mode After receiving the play instruction, power on the micro control unit, the music player unit, the non-volatile storage unit and the second display screen to perform the music play operation, and the central processing unit, the hard disk and the first display screen remain in the power saving mode; when the music is played When finished, turn off the micro control unit, the music player unit, the non-volatile storage unit and the power supply of the second display screen.

The music playing method can play music in the shutdown state and power-saving mode of the computer system. The computer system includes a central processing unit, a hard disk and a first display screen. The method includes the following steps: (a) the computer system Also provide a non-volatile storage unit, a music player unit and a micro-control unit, wherein the non-volatile storage unit is used to store music files; (b) receive a playback instruction for performing music playback operations; (c) power on A micro control unit, a music playing unit and a non-volatile storage unit; and (d) the micro control unit controls the music playing unit to play music files stored in the non-volatile storage unit.

The music playing method further includes features: the computer system also provides a second display screen for displaying music-related data when the micro-control unit controls the music playing unit to play music; when the computer system receives a play instruction in a shutdown state, Execute the music playing operation and the computer system can keep the shutdown state; when the computer system receives the playing instruction in the power saving mode, perform the music playing operation and the central processing unit, the hard disk and the first display screen can keep the power saving mode; when the computer system is in the power saving mode When the normal working mode receives the playback instruction, the central processing unit reads the music file in the hard disk and stores it in the non-volatile storage unit; when the music playback ends, the micro-control unit, music playback unit, non-volatile storage unit and Second display power.

Compared with the prior art, the computer system and its music playing method can use a storage unit with less power consumption to store music files when the system central processing unit and hard disk are powered off, and use a less power consumption storage unit to store music files. The micro-control unit controls the music playback, and at the same time, the music-related data can also be displayed in time on a small display with less power consumption, thereby greatly reducing the power consumption of the computer system and prolonging the battery life of the computer system.

【Description of drawings】

FIG. 1 is a hardware architecture diagram of a computer system in an embodiment.

Fig. 2 is a hardware architecture diagram of a computer system in another embodiment.

FIG. 3 is a flow chart of a method for playing music by using the computer system in FIG. 1 or FIG. 2 in its power-on state in an embodiment.

FIG. 4 is a flow chart of a method for playing music using the computer system in FIG. 1 or FIG. 2 in a power-off state in an embodiment.

【Detailed ways】

As shown in FIG. 1 , it is a hardware architecture diagram of a computer system in an embodiment. This computer system 1 comprises a central processing unit (CPU) 10, a hard disk 11, a first display screen 12, a micro control unit 13, a music player unit 14, a non-volatile storage unit 15, a second display screen 16, a key 17 and a power supply 18. The second display screen 16 is used to display music-related data in time when playing music; the non-volatile storage unit 15 can be a Flash memory storage unit for storing music files; the music playback unit 14 is used for playing music files; The micro control unit 13 is used to control the Flash storage unit 15 and the music playing unit 14 to perform music playing operations, and display music-related data on the second display screen. Wherein the micro-control unit 13, the Flash memory storage unit 15 and the second display screen 16, compared with the CPU 10, the hard disk 11 and the first display screen 12, all only need to provide a small amount of power to work, that is, only need to consume less power. The micro control unit 13, the Flash memory storage unit 15 and the second display screen 16 all keep the power off state when no music playing operation is performed.

In this embodiment, the hard disk 11 stores music files, but it is not limited to music files, that is, other files can also be stored. The button 17 is used for the user to operate to generate a play instruction for performing a music playback operation, and the button 17 can be located at a proper position of the computer system 1 , such as the side of the second display screen 16 . The buttons may include, but are not limited to: random play, pause, play, next song, previous song play, volume adjustment, etc.

When the computer system 1 receives the playback instruction generated by the button 17 in the shutdown state, the music playback operation is performed: the computer system 1 controls the music playback unit 14 to play the music file stored in the Flash memory storage unit 15 through the micro control unit 13 and displays music related information. The data is displayed on the second display screen 16 to realize the music playing operation.

When the computer system 1 receives the playback instruction generated by the button 17 under normal working conditions, the music playback operation is performed: the CPU 10 reads the music files under the specified path in the hard disk 11 and stores them in the Flash memory storage unit 15, wherein the specified path The music file can be the music file that the user likes; Then, computer system 1 also controls the music player unit 14 to play the music file stored in the Flash memory storage unit 15 by the micro control unit 13 and displays music-related data on the second display screen 16, to realize the music playing operation; in addition, when the computer system 1 detects that the performance of the CPU 10 is lower than a predetermined value, the power supply unit 18 automatically stops supplying power to the CPU 10, the hard disk 11 and the first display screen 12 to enter the power saving mode. Computer system 1 can still carry out music playing operation through micro control unit 13, music playing unit 14, Flash flash memory storage unit 15 and second display screen 16, wherein detection operation can be realized by a conventional CPU performance detection software . When the computer system 1 receives the playback instruction generated by the button 17 in the power-saving mode state and performs the music playback operation: the computer system 1 controls the music playback unit 14 to play the music file stored in the Flash memory storage unit 15 as before by the micro control unit 13 And display music-related data on the second display screen 16 to realize the music playing operation, and keep the CPU 10, the hard disk 11 and the first display screen 12 in the power saving mode.

And, during the above-mentioned execution of the music playing operation, when the music playing operation ends, the power supply of the micro control unit 13, the music playing unit 14, the Flash memory storage unit 15 and the second display screen 16 is automatically turned off.

Therefore, by this computer system 1, under the power off state of central processing unit 10, hard disk 11 and first display screen 12, utilize the Flash memory storage unit 15 that power consumption is less to store music file, and adopt power consumption less The small micro-control unit 13 controls the music playback, and at the same time, the music-related data is also displayed in time using the second display screen 16 with less power consumption, thereby greatly reducing the power consumption of the computer system 1 and prolonging the battery life of the computer system 1. usage time.

As shown in FIG. 2 , it is a hardware architecture diagram of a computer system in another embodiment. In this figure, except that the connection method adopted is different from that in FIG. 1 , the other components with the same labels and their functions are consistent with those in FIG. 1 . Wherein, the component connection mode adopted in Fig. 1 is that all components share the same bus, while the component connection mode adopted in this figure is shared by the CPU 10, the hard disk 11, the first display screen 12, the micro control unit 13, the key 17 and the power supply unit 18 One bus, while the micro control unit 13, the music player unit 14, the Flash memory storage unit 15, the second display screen 16, the buttons 17 and the power supply unit 19 share another bus.

As shown in FIG. 3 , it is a flow chart of a method for playing music by using the computer system in FIG. 1 or FIG. 2 in its power-on state in an embodiment. First, the computer system 1 receives a play command generated from the button 17 (step S300). The computer system 1 detects the performance of the current CPU 10 through a CPU performance detection software, that is, determines whether the current CPU 10 is in a normal working mode (step S301 ). If the current CPU 10 is in the normal working mode, the power supply device 18 powers up the micro control unit 13, the music player unit 14, the Flash memory storage unit 15 and the second display screen 16 (step S302). The CPU 10 reads the music files under the specified path in the hard disk 11 and stores them in the Flash memory storage unit 15 (step S303). The CPU 10 executes other non-music playback operations, and the micro-control unit 13 controls the music playback unit 14 to play music files stored in the Flash memory storage unit 15 and display music-related data on the second display screen 16 (S304). When the computer system 1 detects that the performance of the CPU 10 is lower than a predetermined value, the power supply device 18 automatically stops supplying power to the CPU 10, the hard disk 11 and the first display screen 12 to enter the power saving mode (step S305). When the music playing operation is finished, the micro control unit 13, the music playing unit 14, the Flash memory storage unit 15 and the second display screen 16 are turned off (step S306).

If the current CPU 10 is in the power saving mode, the power supply device 18 powers up the micro control unit 13, the music player unit 14, the Flash memory storage unit 15 and the second display screen 16 (step S307). Micro-control unit 13 controls music player unit 14 to play and store music files in Flash memory storage unit 15 and display music-related data in second display screen 16, while keeping CPU 10, hard disk 11 and first display screen 12 in power-saving mode (S308 ). When the music playing operation is finished, the micro control unit 13, the music playing unit 14, the Flash memory storage unit 15 and the second display screen 16 are turned off (step S309).

As shown in FIG. 4 , it is a flow chart of a method for playing music by using the computer system in FIG. 1 or FIG. 2 in its power-off state in an embodiment. Firstly, a play command generated from the button 17 is received (step S400). The power supply device 18 powers up the micro control unit 13 , the music player unit 14 , the Flash memory storage unit 15 and the second display screen 16 (step S401 ). The micro control unit 13 controls the music playing unit 14 to play the music files stored in the Flash memory unit 15 and display music-related data on the second display screen 16 (step S402 ). When the music playing operation is finished, turn off the power supply of the micro control unit 13, the music playing unit 14, the Flash storage unit 15 and the second display screen 16 (step S403).

Of course, no matter what state the computer is in, during the music playing process, the micro-control unit 13 can receive other control signals generated by the buttons 17, such as pause, play, next song, previous song play, volume adjustment, etc., the micro-control unit 13 corresponding jobs can be performed.

Claims (14)

1. computer system, it can carry out music, and this computer system comprises a CPU (central processing unit), a hard disk and one first display screen, and wherein the hard disk internal memory contains music file, it is characterized in that this computer system also comprises:

One non-volatile memory cells is used to store the music file that above-mentioned CPU (central processing unit) is obtained from described hard disk;

One music unit is used to play the music file in the described non-volatile memory cells; And

One micro-control unit is used for the described non-volatile memory cells of control, the operation of music unit execution music under off-mode or battery saving mode.

2. computer system as claimed in claim 1 is characterized in that, also comprises one second display screen, is used for showing the music related data when the operation of micro-control unit controls music unit execution music.

3. computer system as claimed in claim 2 is characterized in that, comprises that also a button is used to produce one and carries out the play instruction that music is operated.

4. computer system as claimed in claim 3 is characterized in that, when receiving play instruction under the off-mode, CPU (central processing unit), hard disk and first display screen can keep power down state.

5. computer system as claimed in claim 3, it is characterized in that when when normal mode of operation receives play instruction, CPU (central processing unit) reads in the hard disk music file and is stored in non-volatile memory cells, and during the music operation, this computer system can enter battery saving mode.

6. computer system as claimed in claim 3 is characterized in that, when when battery saving mode receives play instruction, CPU (central processing unit), hard disk and first display screen can keep battery saving mode.

7. computer system as claimed in claim 2 is characterized in that, when music finishes, closes micro-control unit, music unit, non-volatile memory cells and the second display screen power supply.

8. method for playing music that is applied to computer system, this computer system comprises a CPU (central processing unit), a hard disk and one first display screen, and wherein the hard disk internal memory contains music file, it is characterized in that, and this method comprises the steps:

This computer system also provides a non-volatile memory cells, a music unit and a micro-control unit, and wherein the described CPU (central processing unit) of non-volatile memory cells stored is obtained from the music file of described hard disk;

Receive the play instruction of carrying out the music operation;

Power up micro-control unit, music unit and non-volatile memory cells; And

Micro-control unit controls music unit is play and is stored in music file in the non-volatile memory cells.

9. method for playing music as claimed in claim 8 is characterized in that, this computer system also provides one second display screen, is used for when micro-control unit controls music unit playing back music, shows the music related data.

10. method for playing music as claimed in claim 9 is characterized in that, also comprises step: provide a button to be used to produce the play instruction of carrying out the music operation.

11. method for playing music as claimed in claim 10 is characterized in that, when computer system when off-mode receives play instruction, carry out music operation and computer system and keep off-mode.

12. method for playing music as claimed in claim 9 is characterized in that, when computer system when battery saving mode receives play instruction, carry out music operation and CPU (central processing unit), hard disk and first display screen and keep battery saving mode.

13. method for playing music as claimed in claim 12, it is characterized in that, also comprise step: when computer system received play instruction for being in normal mode of operation, CPU (central processing unit) read in the hard disk music file and is stored in non-volatile memory cells.

14. method for playing music as claimed in claim 10 is characterized in that, also comprises step: when music finishes, close micro-control unit, music unit, non-volatile memory cells and the second display screen power supply.

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