CN201063805Y - A mobile terminal with expandable functions - Google Patents

Abstract

The utility model discloses a mobile phone terminal with expandable functions, which aims to solve the defect that the functions of the existing mobile phone terminals are relatively fixed. This functionally expandable mobile phone terminal includes a housing, a radio frequency transceiver and an antenna, a mobile phone baseband chip, a power supply, a memory and a display screen, and also includes an expansion interface located on the housing, through which the mobile phone baseband chip communicates with the The power supply, memory and display screen are connected, and with the assistance of the power, storage space and information display function provided by the power supply, memory and display screen, the functions of the mobile phone terminal are expanded. Compared with the prior art, the mobile phone terminal of the present invention has many characteristics such as lightness, thinness, and smallness due to the simple function of the main machine; moreover, because the main machine has an expansion interface, it can be very convenient to connect the corresponding expansion equipment. Realize the expansion of the main machine function.

Description

A mobile terminal with expandable functions

technical field

The utility model relates to a mobile phone terminal, in particular to a mobile phone terminal with expandable functions.

Background technique

Existing mobile terminals often face two situations in terms of appearance and function design: one is that the appearance is as small as possible, but the functions are too simple; the other is that the functions are powerful, but are limited by the size It cannot be exquisite and compact.

In order to meet the diverse needs of users, the existing mobile terminals have more or less several functions under the condition of ensuring a certain shape and size, and some of the functions are strengthened to meet the individual needs of different users. Such as the sound effect of its MP3 function of a certain mobile phone is excellent, then it can be called a music mobile phone, and it is aimed at some users who like music; Most of them are some users who like to shoot, and so on.

But, the hobbies of some users are not single, although some of its functions of the existing mobile terminal are quite perfect, the effects of the attached remaining functions may be just unsatisfactory. Such as a user not only likes to listen to music, but also likes to use a mobile phone terminal to take pictures, then the existing music mobile phones that focus on music effects or camera phones that focus on shooting effects cannot meet their individual needs.

So, besides the "universal mobile phone" that possesses most commonly used functions at the same time, can a technology be proposed so that the same mobile terminal can be equipped with corresponding functions according to the hobbies and demands of different users?

Utility model content

The technical problem to be solved by the utility model is to provide a mobile phone terminal with simple functions, but its functions can be expanded through related expansion equipment, so as to solve the defect that the functions of the existing mobile phone terminals are relatively fixed.

In order to solve the above-mentioned technical problems, the utility model firstly provides a mobile phone terminal with expandable functions, including a housing, a radio frequency transceiver and an antenna, a mobile phone baseband chip, a power supply, a memory and a display screen, and also includes an expansion interface located in the On the casing, the baseband chip of the mobile phone is respectively connected to the power supply, memory and display screen, and with the assistance of power, storage space and information display functions provided by the power supply, memory and display screen, the functions of the mobile terminal.

According to the above mobile phone terminal with expandable functions, the number of the expansion interfaces may include one or more.

According to the above mobile phone terminal with expandable functions, the expansion interface may be located on the side or the back of the casing.

According to the above mobile phone terminal with expandable functions, the expansion interface may be a general interface.

According to the above mobile phone terminal with expandable functions, the casing may further include a plug to block the extension interface. Further, the stopper may include a rubber stopper or a sliding cover.

The present invention further provides a multimedia entertainment device, including a multimedia extension interface, a multimedia processor and a power management chip connected to the multimedia extension interface, and a camera and an audio processor connected to the multimedia processor; wherein, the The multimedia extension interface facilitates the connection between the multimedia entertainment equipment and external equipment; the multimedia processor controls the power management chip, camera and audio processor; the power management chip facilitates the external equipment through the The multimedia expansion interface provides power for the multimedia entertainment device; the camera takes pictures or videos; the audio processor reads and plays audio files and processes voice signals.

The above multimedia entertainment device may further include a memory connected to the multimedia processor to store pictures, videos and audio files.

The above multimedia entertainment device may further include a detachable power supply connected to the power management chip to supply power to the multimedia entertainment device.

The above multimedia entertainment device may further include a detachable display screen connected to the multimedia processor to display information in the multimedia entertainment device.

The above-mentioned multimedia entertainment device may further include buttons connected to the multimedia processor, so as to facilitate users to operate the multimedia entertainment peripherals.

The above-mentioned multimedia entertainment device may further include a speaker and/or an earphone jack connected to the audio processor, so that the user can hear the sound of the multimedia entertainment peripheral when it is working.

The above-mentioned multimedia entertainment device may further include a plug to block the expansion interface. Further, the stopper may include a rubber stopper or a sliding cover.

The present invention also provides a bluetooth communication device, which is characterized in that it includes a communication extension interface, a bluetooth chip and a power management chip connected to the communication extension interface, and a bluetooth antenna connected to the bluetooth chip; wherein, the communication extension The interface facilitates the connection between the Bluetooth communication device and the external device; the Bluetooth chip and the Bluetooth antenna are responsible for sending and receiving the communication information of the Bluetooth communication device; the power management chip facilitates the external device through the communication expansion interface, Provide power for this Bluetooth communication device.

The present invention also provides a pedometer, comprising an expansion interface, an acceleration sensor connected to the expansion interface, a microprocessor and a power management chip, and the acceleration sensor, the microprocessor and the power management chip are also connected in pairs; Wherein, the expansion interface facilitates the connection between the pedometer and external devices; the acceleration sensor collects motion acceleration, and after calculation by the microprocessor, the motion state information is sent to the pedometer through the expansion interface. An external device; the power management chip is convenient for the external device to supply power to the pedometer through the expansion interface.

Compared with the prior art, the mobile phone terminal of the present invention has many characteristics such as lightness, thinness, and smallness due to the simple function of the main machine; moreover, because the main machine has an expansion interface, it can be very convenient to connect the corresponding expansion equipment. Realize the expansion of the main machine function.

Description of drawings

Fig. 1 is a schematic diagram of the composition of the utility model embodiment;

Fig. 2 is a schematic diagram of an application embodiment of the present invention;

Fig. 3 is a composition diagram of an embodiment of a multimedia entertainment peripheral device;

Fig. 4 is a schematic diagram of the composition of an embodiment of a bluetooth communication external device;

Fig. 5 is a schematic diagram of the composition of an embodiment of the external device of the pedometer.

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The idea of the utility model is that the mobile phone terminal is designed as a base machine that only has calls and short messages, an expansion interface is set on the base machine, and different functions are expanded through the expansion interface. Like this mother machine owing to function is few, so the external dimension of mobile phone terminal is just less. Moreover, an extended function interface is provided on the base machine to meet the corresponding needs of different users by connecting different functional devices.

FIG. 1 shows a schematic diagram of an embodiment of the mobile phone terminal of the present invention, which mainly includes two parts: a main machine 101 and an external device 105 . The main unit 101 in the mobile terminal has relatively simple functions, and only includes the most basic module units such as a radio frequency transceiver 102 , an antenna 103 , a power supply 110 , a memory 111 and a display screen 112 . Existing mobile phone terminals basically all contain the above-mentioned basic units to realize the functions of making and receiving calls and sending and receiving short messages. Because the mobile phone terminal that only contains these two functions has a single function, it is convenient to design it to have many characteristics such as lightness, thinness, and smallness. The main machine 101 also includes a function expansion interface 104, which is connected to the radio frequency transceiver 102, power supply 110, memory 111 and display screen 112 through the mobile phone baseband chip 113. The radio frequency transceiver 102 is also connected to the antenna 103 to provide the main machine 101. Communication support. The external device 105 that realizes the function extension of the mobile phone terminal is connected to the main machine 101 and provides function expansion for the main machine 101 through its own expansion interface 106 and the expansion interface 104 on the main machine 101 . The power supply 110 provides energy support for the external device 105 through the host-side expansion interface 104 and the external device expansion interface 106 . The storage 111 provides storage space for the external device 105 through the expansion interface 104 . In a preferred implementation, the function expansion interface 104 is located on the side or back of the main machine 101 housing. These function expansion interfaces 104 are set in corresponding positions. Designing and realizing like this is to avoid the expansion interface 104 on the main machine 101 side being designed on the front of the main machine 101, so that the front of the main machine 101 housing that has been distributed with units such as keyboards and display screens is more crowded and the external dimensions of the main machine 101 have to be enlarged. Moreover, designing the expansion interface 104 on the front of the main machine 101 also affects the beauty of the main machine 101 and the utility model, and the convenience of use.

Between the expansion interface 104 of the main machine 101 and the expansion interface 106 of the external device 105, two-way information exchange is carried out through a bus (BUS) and a control signal (Control Signal).

Generally, the connection methods of the external devices 105 with different functions to the main machine 101 are also different due to differences in data transmission methods and the like. According to the different connection methods between the external device 105 and the main machine 101, the external device 105 is divided into three categories, namely entertainment peripherals focusing on entertainment functions, communication peripherals focusing on communication functions, and peripherals with other functions . Among them, the entertainment peripherals can be divided into radio function, game console function, sound file (such as MP3 file) playback function, video file (such as RMVB file) playback function, audio and video file (such as MP4 file) playback function, memory External devices that focus on entertainment such as camera or camera functions; the communication peripherals can be divided into communication peripherals with bluetooth transmission functions, infrared transmission functions, etc. that focus on communication transmission; other functional peripherals can be Divided into treadmill external equipment with pedometer function, blood pressure monitor external equipment with blood pressure measurement function, thermometer external equipment with body temperature measurement function, etc.

The external device 105 of the present invention can itself be an independent functional unit. Not only can it be used in conjunction with the main machine 101, but also can be used alone. Such as entertainment peripherals, after being connected with the expansion interface 104 of the main machine 101, the utility model has just had corresponding entertainment functions; The interface can be used as a corresponding entertainment device if it is connected to a corresponding battery or battery box. For entertainment peripherals such as MP3 players, if a display screen is added during design, it can also be used as an MP4. Another example is communication peripherals, when connected with the expansion interface 104 of the main machine 101, the utility model has corresponding communication functions such as bluetooth or infrared; when the communication peripherals are not connected with the main machine 101, the communication peripherals can communicate with other equipment Connect as a corresponding communication transceiver; also as other functional peripherals (such as treadmills, blood pressure monitors, thermometers, etc.), when such functional peripherals are connected with the expansion interface 104 of the main machine 101, the utility model has a corresponding When such functional peripherals are not connected to the main machine 101, such functional peripherals can be used as corresponding functional devices such as treadmills, sphygmomanometers, thermometers, etc. when connected to corresponding batteries or battery boxes. Unfortunately, such external devices require corresponding display screens to display corresponding information.

The extension interface 104 on the shell of the main machine 101 can be blocked by rubber stopper or sliding cover when not in use. In addition, the blockages such as rubber stoppers or slide covers can be designed in a certain shape, as accessories for the main machine 101 or the external device 105 , and to protect the expansion interface 104 . When used with the main machine 101 or the external device 105, just pull out the rubber stopper or cut off the blockage such as the slide cover through the slide rail. The extension interface 106 on the external device 105 can also adopt the same design to block and cover the extension interface 106 for protection.

In the present utility model, a plurality of external devices 105 can be attached to one base machine 101, so that the functions of the present utility model are more abundant. Referring to FIG. 2 , the base machine 101 of an application embodiment of the present invention has three expansion interfaces, which are entertainment expansion interface 202 , communication expansion interface 203 and other expansion interface 204 . Correspondingly, the multimedia expansion interface 208 on the multimedia entertainment peripherals 205 that can both take pictures and play audio is connected to the entertainment expansion interface 202 on the base machine 101, and the communication expansion interface 209 on the bluetooth communication peripherals 206 is connected to the communication on the base machine 101. The expansion interface 203 is connected, and the pedometer expansion interface 210 on the pedometer peripheral 207 is connected with other expansion interfaces 204 on the main machine 101, respectively providing support for entertainment, communication and pedometer functions of the main machine 101. The two-way information exchange between the three kinds of peripherals and the main machine 101 is carried out through the bus and control signals between the expansion interfaces. Moreover, the main machine 101 also supplies power to each external device through the power supply 110 .

In this application embodiment, the entertainment peripherals are represented by the multimedia entertainment peripherals 205 capable of taking pictures and playing audio, the communication peripherals are represented by the Bluetooth communication peripherals 206, and other types of peripherals are represented by the pedometer peripherals 207. The utility model is described in detail, but it is not meant to be limited thereto.

The multimedia entertainment external device 205 among Fig. 2, its concrete structure as shown in Fig. 3, comprises the multimedia extension interface 208, the multimedia processor 301 that links to each other with the multimedia extension interface 208 and the power management chip 303, and the multimedia processor 301 that links to each other camera 302 and audio processor 305. The power supply 110 in the base machine 101 supplies power to the camera 302 and the audio processor 305 through the power management chip 303 and the multimedia processor 301 . Since the multimedia entertainment peripheral 205 has a camera 302, an audio processor 305, and a multimedia processor 301, it has the functions of taking pictures and playing audio files.

Wherein the audio processor 305, under the control of the multimedia processor 301, reads and plays the audio files in the side memory 111 of the main machine 101 through the multimedia extension interface 208, and can perform voice signal processing and other operations. processing, such as recording via headset microphone or external microphone.

The multimedia entertainment peripheral 205 is connected to the master computer 101 through the multimedia extension interface 208 on it, and the connection confirmation of the master computer 101 is obtained. The power supply 110 on the side of the main machine 101 enables the power management chip 303, turns on the power management chip 303, thereby supplies power for the multimedia processor 301, the camera 302, and the audio processor 305, and performs initialization, and stores and reads data through the memory 111 of the main machine 101 . After the multimedia entertainment peripheral 205 is started, the corresponding entertainment function is selected through the menu of the base machine 101, etc., and the corresponding entertainment operation is performed. Therefore, the multimedia entertainment peripheral 205 realizes the expansion of the camera function and the audio file playback function of the base machine 101, so that it has certain entertainment functions.

The multimedia entertainment peripherals 205 may further include a memory 304, which is connected to the multimedia processor 301 and stores the pictures and video files taken by the camera 302, as well as the pictures and video files obtained by the multimedia processor 301 from other devices through the multimedia extension interface 208. ; Audio files acquired by the multimedia processor 301 from other devices can also be saved.

The multimedia entertainment peripheral 205 may further include a detachable power supply 306 , which supplies power to the multimedia entertainment peripheral 205 through the power management chip 303 . The power management chip 303 is connected to the multimedia extension interface 208 and the multimedia processor 301 at the same time, and transmits the power provided by the detachable power supply 306 to the multimedia extension interface 208 and the multimedia processor 301 . Under the control of the power management chip 303, after the multimedia entertainment peripheral 205 is connected to the base machine 101, the power supply 110 on the base machine 101 can be selected as the power supply for the multimedia entertainment peripheral 205, or the detachable power supply 306 can be selected as the power supply for the multimedia entertainment peripheral 205. The entertainment peripheral 205 is powered, and the power supply 110 on the base machine 101 and the detachable power supply 306 can also be selected to jointly supply power to the multimedia entertainment peripheral 205 .

The multimedia entertainment peripheral 205 may further include a detachable display screen 307 connected to the multimedia processor 301 . Under the control of the multimedia processor 301, information such as pictures and video files can be browsed through the detachable display screen 307. This multimedia entertainment peripheral 205 comprising a detachable display screen 307, after being connected to the base machine 101, under the selection of the base machine 101, through the control of the multimedia processor 301, can choose to watch pictures and video files on the screen of the base machine 101, You can also choose to watch pictures and video files on the detachable display screen 307, and you can also choose to watch pictures and video files on the side screen of the main machine 101 and the detachable display screen 307 of the multimedia entertainment peripheral 205 at the same time.

Moreover, since the multimedia entertainment peripheral 205 includes both an audio processor 305 and a detachable display screen 307, the base machine 101 can also play audio and video files such as MP4 after being connected to the multimedia entertainment peripheral 205.

The multimedia entertainment peripheral 205 may further include a button 308 connected to the multimedia processor 301 , so that the user can operate the multimedia entertainment peripheral 205 conveniently.

The multimedia entertainment peripheral 205 can further include a loudspeaker 309 and/or an earphone jack 310 connected to the audio processor 305, so that the user can hear the sound of the multimedia entertainment peripheral 205 when it is working, and can pass through the microphone on the earphone or an external microphone for recording.

Like this, in the multimedia entertainment peripheral 205 that has included multimedia expansion interface 208, multimedia processor 301, camera 302 and audio processor 305, if further include memory 304, detachable power supply 306, power management chip 303, detachable display screen 307 , button 308, and loudspeaker 309 and/or earphone jack 310, have just constituted a separate entertainment device, can shoot, browse picture and video file, can play audio file and audio-video file again. Wherein the multimedia processor 301, the camera 302, the memory 304, the audio processor 305, the detachable power supply 306, the power management chip 303, the detachable display screen 307, the button 308, and the loudspeaker 309 or the earphone jack 310 are capable of working independently The basic building block of entertainment equipment.

The bluetooth communication external device 206 in Fig. 2, its specific structure as shown in Fig. 4, comprises communication extension interface 209, the bluetooth chip 401 that links to each other with communication extension interface 209 and the power management chip 402, and the bluetooth antenna that links to each other with bluetooth chip 401 403. The Bluetooth chip 401 and the Bluetooth antenna 403 are responsible for sending and receiving communication information. The power management chip 402 is connected to the power supply 110 on the side of the main machine 101 through the communication expansion interface 209 to provide power support for the Bluetooth chip 401 .

The Bluetooth communication peripheral 206 is connected to the base machine 101 through the communication expansion interface 209 on it, and the connection confirmation of the base machine 101 is obtained. The power supply 110 on the side of the base machine 101 enables the power management chip 402 and turns on the power management chip 402 to supply power to the Bluetooth chip 401 and perform initialization. After starting the Bluetooth communication peripheral 206, transmit data to the master machine 101 through the Universal Asynchronous Receiver Transmitter (UART for short), transmit voice signals to the master machine 101 through the Pulse Code Modulation (PCM) port, and transmit the voice signal to the master machine 101 through the Bluetooth antenna. 403 realizes the communication between the main machine 101 and the outside.

The Bluetooth communication peripheral 206 may further include a detachable power supply 404 connected to the power management chip 402 . After the Bluetooth communication peripheral 206 is connected to the base machine 101, through the control of the base machine 101 side, the power supply 110 on the base machine 101 side can be selected to supply power to the Bluetooth communication peripheral 206, and the detachable power supply 404 can be selected as the Bluetooth communication peripheral 206. For power supply, the power supply 110 on the side of the main machine 101 and the detachable power supply 404 can also be selected to jointly supply power to the Bluetooth communication peripheral 206 .

The bluetooth communication peripheral 206 including the detachable power supply 404 can be designed and processed into a general-purpose interface. In this way, the Bluetooth communication peripheral 206 can also be connected with other devices and used as a communication device. Correspondingly, the communication expansion interface 203 on the side of the main machine 101 can also be designed and processed into a general interface.

Pedometer external device 207 among Fig. 2, its specific structure as shown in Figure 5, comprises pedometer extension interface 210, the acceleration sensor 501 that links to each other with pedometer extension interface 210 and power management chip 502, and step counter The microprocessor 503 connected to the device expansion interface 210, the acceleration sensor 501, and the power management chip 502. Acceleration sensor 501, as a collector of motion acceleration, in the process of motion, acceleration and time axis roughly become a sine wave; Utilize acceleration sensor 501 to detect the acceleration of motion, and through the calculation of microprocessor 503, just can obtain motion state information , such as movement speed, movement acceleration, and movement distance. Afterwards, the microprocessor 503 transmits the motion information to the base machine 101 through the pedometer extension interface 210, and the measured motion state information can be obtained through the screen of the base machine 101. The power management chip 502 is connected to the power supply 110 on the side of the main machine 101 through the pedometer expansion interface 210 to provide power support for the pedometer peripheral 207 .

The pedometer peripheral 207 is connected to the main machine 101 through the pedometer expansion interface 210 on it, and the connection confirmation of the main machine 101 is obtained. The power supply 110 on the side of the main machine 101 enables the power management chip 502, turns on the power management chip 502, thereby supplies power to the acceleration sensor 501 and the microprocessor 503, and performs initialization. After starting the pedometer peripheral hardware 207, the acceleration sensor 501 transmits the acceleration etc. collected to the microprocessor 503, after calculation by the microprocessor 503, the motion state information obtained is sent to the pedometer extension interface 210, and the pedometer The stepper expansion interface 210 transmits the motion state information to the master computer 101 through the IIC bus or the SPI bus, and displays it on the display screen.

The pedometer peripheral 207 may also include a detachable display 504 connected to the microprocessor 503 . After being connected with the main machine 101, under the control of the main machine 101, the display screen on the main machine 101 side can be selected as the output display device of the motion state information, and the detachable display screen 504 can be selected as the output display device of the motion state information. Choose to simultaneously display exercise status information on the display screen on the side of the main machine 101 and on the detachable display screen 504 of the pedometer peripheral 207 , and also display other information in the pedometer peripheral 207 .

The pedometer peripheral 207 may further include a detachable power supply 505 connected to the power management chip 502 . After the pedometer peripheral 207 is connected to the main machine 101, through the control of the main machine 101 side, the power supply 110 on the main machine 101 side can be selected to supply power to the pedometer peripheral 207, and the detachable power supply 505 can be selected as the pedometer. The peripheral 207 supplies power, and the power supply 110 on the side of the main machine 101 and the detachable power supply 505 can also be selected to jointly supply power to the pedometer peripheral 207 .

The pedometer peripheral 207 including the detachable display screen 504 and the detachable power supply 505 can also be used as a pedometer device with independent working capability.

The overall feature of the utility model is that it is flexible and changeable. Not only can mobile terminals with different functions be designed through different expansion interfaces according to different needs, but also the expansion interfaces can be integrated or separated so that the expansion interface 104 on the main machine 101 can be based on If necessary, it can be placed on the front, rear, left, right, or up and down of the main machine 101, so that the appearance of the main machine 101 of the mobile terminal and the external device 105 can be matched more flexibly. Simultaneously along with the release of other functional peripherals in the future, only by changing the expansion interface 104 on the main machine 101 and the expansion interface 106 on the external device 105, and carrying out corresponding software upgrades, the utility model can be easily provided with corresponding new functions. Function.

The main machine 101 part of the present utility model, because it only has the basic function of the mobile phone in the prior art and the spare peripheral expansion interface 104, so it can have variability and diversity according to different requirements in appearance design. The main machine 101 can be equipped with a large-capacity battery at the same time, so that the utility model has the characteristics of long standby time.

The utility model adds different types of external devices 105 to the base machine 101, so that the mobile terminal of the utility model has different functions to meet the corresponding needs of different users. At the same time, different external devices 105 also have their independent functions, and can be used as a single device when coupled with power supply, display screen and other devices. Since external devices 105 with different functions can be easily added to or removed from the base machine 101, the utility model has diversified features, and the external devices 105 can be added and removed according to different needs of users. Let users enjoy the real DIY (Do It Yourself) fun of mobile phones.

Claims (16)

1. A mobile phone terminal with expandable functions, comprising a housing, a radio frequency transceiver and an antenna, a mobile phone baseband chip, a power supply, a memory and a display screen, characterized in that, it also includes an expansion interface, which is positioned on the housing, through the The baseband chip of the mobile phone is connected to the power supply, memory and display screen respectively, and with the assistance of electric energy, storage space and information display function provided by the power supply, memory and display screen, the functions of the mobile phone terminal are expanded. 2. A mobile phone terminal with expandable functions according to claim 1, wherein the number of said expansion interfaces includes one or more. 3. The mobile phone terminal with expandable functions according to claim 1, wherein the expansion interface is located on the side or back of the housing. 4. A mobile phone terminal with expandable functions as claimed in claim 1, wherein the expansion interface is a general interface. 5 . The mobile phone terminal with expandable functions according to claim 1 , characterized in that, the housing further includes a stopper to block the expansion interface. 6 . 6. The function-expandable mobile phone terminal according to claim 5, wherein the stopper comprises a rubber stopper or a sliding cover. 7. A multimedia entertainment device, characterized in that it comprises a multimedia extension interface, a multimedia processor and a power management chip connected to the multimedia extension interface, and a camera and an audio processor connected to the multimedia processor; wherein, The multimedia expansion interface facilitates the connection between the multimedia entertainment equipment and external equipment; the multimedia processor controls the power management chip, camera and audio processor; the power management chip facilitates the external equipment through The multimedia extension interface supplies power for the multimedia entertainment device; the camera takes pictures or videos; the audio processor reads and plays audio files, and can record through the microphone on the earphone or an external microphone. 8. A multimedia entertainment device as claimed in claim 7, further comprising a memory connected to the multimedia processor for storing pictures, videos and audio files. 9. The multimedia entertainment device according to claim 7, further comprising a detachable power supply connected to the power management chip to supply power to the multimedia entertainment device. 10. The multimedia entertainment device according to claim 7, further comprising a detachable display screen connected to the multimedia processor to display information in the multimedia entertainment device. 11. The multimedia entertainment device according to claim 7, further comprising buttons connected to the multimedia processor, so as to facilitate users to operate the multimedia entertainment peripherals. 12. A multimedia entertainment device as claimed in claim 7, further comprising a speaker and/or an earphone jack and/or an external microphone connected to the audio processor so that the user can hear the multimedia The sound of entertainment peripherals working, and can be recorded through the microphone. 13. The multimedia entertainment device according to claim 7, further comprising a blocking object to block the expansion interface. 14. A multimedia entertainment device according to claim 13, wherein the stopper comprises a rubber stopper or a sliding cover. 15. A bluetooth communication device, characterized in that it includes a communication extension interface, a bluetooth chip and a power management chip connected to the communication extension interface, and a bluetooth antenna connected to the bluetooth chip; wherein, the communication extension interface is convenient The bluetooth communication device is connected with an external device; the bluetooth chip and the bluetooth antenna are responsible for sending and receiving communication information of the bluetooth communication device; Communication equipment power supply. 16. A pedometer, characterized in that it includes an expansion interface, an acceleration sensor, a microprocessor and a power management chip connected to the expansion interface, and the acceleration sensor, the microprocessor and the power management chip are also connected in pairs ; Wherein, the expansion interface is convenient for this pedometer to be connected with external equipment; the acceleration sensor collects motion acceleration, and after calculation by the microprocessor, the motion state information is sent to the pedometer through the expansion interface. The external device; the power management chip is convenient for the external device to supply power to the pedometer through the expansion interface.

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