CN100419624C - Power-supply management system and method for mobile terminal equipment - Google Patents

Abstract

A power supply management system of mobile terminal device comprises display screen, power supply controller of display screen, key unit, power supply controller, selection unit of key state, timer and controller for locking key unit when locking state of said selection unit is detected by controller and for switching display screen to be low power consumption state through power supply controller as well as for starting up time and switching power supply off through power supply controller if nonlocking state of said selection unit is detected by controller before timer is stopped.

Description

A kind of power-supply management system of mobile terminal device and method

Technical field

The present invention relates to a kind of multimedia mobile terminal equipment, relate in particular to a kind of power-supply management system and method for multimedia mobile terminal equipment.

Background technology

Along with the rise of the multimedia mobile terminal equipment with digital music (audio frequency) playing function, various small-sized mp3 players, music phone equipment are used like the mushrooms after rain in a large number.These multimedia mobile terminal equipment can optionally be placed in knapsack and the pocket, this just means that they can be at any time by the push button exciting on it, sometimes the user under not deliberate situation because run into button because of carelessness and with its activation, this will cause the unnecessary consumption of battery electric quantity of these equipment.

As a kind of audio-frequence player device, longer reproduction time is the important indicator of product.Therefore how by rational power management scheme design, improve equipment task time and become a very important research field.

On existing mobile multi-media terminal equipment with digital music (audio frequency) playing function, for fear of bumping the maloperation that button causes by mistake because of mistake, a HOLD key generally all is set, after the user activates the HOLD key, all buttons on the mobile multi-media terminal equipment all are in the lock state, like this user with regard to can not be because of neglectful maloperation the electric weight of loss battery in vain.

But the design of present HOLD key has only solved the problem of user misoperation keyboard, but under actual conditions, the user is after having used press key locking, generally all be that multimedia terminal equipment is placed on pocket, bag, hangs over the front, do not see display screen, so just cause the consumption in vain of the power supply of display screen yet.

In addition, since the user sometimes before sleep, use these equipment and usually forget and turn off a large amount of consumption that power supply also can cause battery.

The function that existing HOLD key provides does not all solve the above problems, and therefore a kind of power-supply management system of battery saving mode and the research topic that method has become a necessity are provided.

Summary of the invention

As mentioned above, the object of the present invention is to provide a kind of can be during with the keyboard lockout of multimedia mobile terminal the user, the power-supply management system and the method for farthest saving electric weight.

For these reasons, the invention provides a kind of power-supply management system of multimedia mobile terminal equipment, comprise a display screen, a display screen power-supply controller of electric, a key device, a power-supply controller of electric, it is characterized in that, also comprise:

One key-press status selecting arrangement is used for lock-out state or unlock state by user's selection key;

One timer;

One controller is used for when its state that detects described keyboard lockout state selecting arrangement is lock-out state:

1) locks described key device;

2) the described display screen power-supply controller of electric of indication transfers described display screen to low power consumpting state, starts described timer simultaneously; And

If the state that described controller did not detect described keyboard lockout state selecting arrangement before described timer stopped is a unlock state, then indicate described power-supply controller of electric powered-down.

The present invention further provides a kind of method for managing power supply of multimedia mobile terminal equipment, described system comprises a display screen, a key device, a key-press status selecting arrangement and a power supply, described key-press status selecting arrangement is used for lock-out state or the unlock state by user's selection key, and described method comprises:

Step 1, whether the detection user selects described key device is lock-out state, if then enter step 2; If not, then enter normal mode of operation;

Step 2 locks described key device, and transfers described display screen to low power consumpting state;

Step 3 starts a timer;

Step 4 judges whether timer stops, if do not stop, then returning step 1, if stop, then entering step 5;

Step 5, powered-down.

Principle of the present invention, practicality and plurality of advantages will become clearer from following detailed when reading in conjunction with the accompanying drawings.

Description of drawings

Figure 1 shows that the power-supply management system block diagram of multimedia terminal equipment of the present invention;

Figure 2 shows that method for managing power supply flow process of the present invention.

Embodiment

The preferred embodiments of the present invention be one its be provided with the MP3 player 1 of a HOLD key, with reference to Fig. 1, comprising controller 11, HOLD key 12, state detection module 13, timer 14, key device 15, OLED display screen 16, display screen power-supply controller of electric 17, power-supply controller of electric 18 and an electronic-circuit device 19.

Wherein be provided with state detection module 13 in controller 11, be used to detect the state of HOLD key 12, the detection signal of controller 11 by state detection module 13 is to key device 15 control that responds.As shown in Figure 1, the user can be arranged to two states with HOLD key 12, the lock-out state when a kind of HOLD of being key 12 is received high level, the unlock state when a kind of HOLD of being key 12 is received low level.When the user was arranged to unlock state with HOLD key 12, controller 11 sent instruction to electronic-circuit device 19, and electronic-circuit device 19 is carried out the playing function of all MP3 players then; When the user was arranged to lock-out state with HOLD key 12, controller 11 locked key device 15 by a press key locking circuit (not shown).These principles with the lock function of the HOLD key of prior art are identical, repeat no more here.

According to controller 11 of the present invention, when the HOLD key was arranged to lock-out state, controller 11 sent instruction to display screen power-supply controller of electric 17 and turns off OLED display screen 16.The controller of the preferred embodiments of the present invention is the ATJ2085 controller, and it can control the display screen switch of 12V backlight electric power, and OLED display screen 16 preferably adopts the RGC080960390W004 of Lai Bao company, and this is a double-colored OLED display screen of 96*39.Like this, when the HOLD button was changed to lock-out state, the ATJ2085 controller can be by programmed for placing low power consumpting state with color OLED rapidly, and this can greatly reduce the display screen power consumption.

A timer 14 has been added in design in the MP3 player 1 of the present invention, when the HOLD button is changed to lock-out state, controller 11 starts timer 14, be accumulated to 4 hours (general user's possibility to the MP3 operation in 4 hours is very big) when the time of timer 14, and the user does not readjust HOLD key 12 unlock state during this period, then controller circuitry device 11 sends to instruct to power-supply controller of electric 18 and turns off power supply, and promptly MP3 player 1 cuts out, and has avoided the user to forget shutdown like this.

The method for managing power supply flow process of MP3 player 1 of the present invention as shown in Figure 2.

Step 1, start enters step 2;

Step 2 judges whether the HOLD key is in the lock state, if then enter step 3; If not, then enter normal mode of operation;

Step 3 changes display screen over to low power consumpting state, enters step 4;

Step 4 with the timer zero clearing, starts timer, enters step 5;

Step 5 judges whether timer stops, if enter step 6; If not, change step 2 over to;

Step 6, powered-down.

Though it will be understood by those skilled in the art that the preferred embodiments of the present invention are is example with the OLED screen, actual display screen comprises and is not limited to OLED, CSTN, TFT LCD.And the low power consumpting state of display screen can be different according to different display screens and product, include, but are not limited to close the display screen power supply fully, close backlight, turn down brightness of display screen, start low-power consumption screen protection etc.

By the mobile multi-media terminal equipment with digital music (audio frequency) playing function of this method design, can be on the prior art framework, by the design of power management policy, improve equipment service time.Such as design by this method on the MP3 that adopts 65K OLED color screen, can be improved more than 30% service time.

Be appreciated that the present invention is not limited to described specific embodiment, and purpose is the described various modifications of the claim as appended that are to cover in the spirit and scope of the invention.

Claims (7)

1. the power-supply management system of a multimedia mobile terminal equipment comprises a display screen, a display screen power-supply controller of electric, a key device, a power-supply controller of electric, it is characterized in that, also comprises:

One key-press status selecting arrangement is used for lock-out state or unlock state by user's selection key;

One timer;

One controller is used for when its state that detects described key-press status selecting arrangement is lock-out state:

1) locks described key device;

2) the described display screen power-supply controller of electric of indication transfers described display screen to low power consumpting state, starts described timer simultaneously; And

If the state that described controller did not detect described key-press status selecting arrangement before described timer stopped is a unlock state, then indicate described power-supply controller of electric powered-down.

2. system according to claim 1 is characterized in that:

The duration of described timer is 4 hours.

3. system according to claim 1 is characterized in that:

Described controller is the ATJ2085 controller.

4. system according to claim 1 is characterized in that:

Described multimedia mobile terminal equipment is a MP3 player.

5. system according to claim 1 is characterized in that:

Described display screen is a double-colored OLED display screen.

6. the method for managing power supply of a multimedia mobile terminal equipment, be applied to a power-supply management system, described system comprises a display screen, a key device, a key-press status selecting arrangement and a power supply, described key-press status selecting arrangement is used for lock-out state or the unlock state by user's selection key, and described method comprises:

Step 1, whether the detection user selects described key device is lock-out state, if then enter step 2; If not, then enter normal mode of operation;

Step 2 locks described key device, and transfers described display screen to low power consumpting state;

Step 3 starts a timer;

Step 4 judges whether timer stops, if do not stop, then returning step 1, if stop, then entering step 5;

Step 5, powered-down.

7. method according to claim 6 is characterized in that:

The duration of described timer is 4 hours.

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