CN202661999U

CN202661999U - Portable electronic device

Info

Publication number: CN202661999U
Application number: CN 201220167797
Authority: CN
Inventors: 屈胜
Original assignee: Shenzhen Futaihong Precision Industry Co Ltd; Chi Mei Communication Systems Inc
Current assignee: Shenzhen Futaihong Precision Industry Co Ltd; Chi Mei Communication Systems Inc
Priority date: 2012-04-19
Filing date: 2012-04-19
Publication date: 2013-01-09
Anticipated expiration: 2022-04-19

Abstract

The utility model discloses a portable electronic device which comprises a WLAN (wireless local area network) card chip and a central processing unit, wherein the central processing unit comprises a switcher circuit electrically connected to the WLAN card chip, the WLAN card chip is used for carrying out communication with an external WLAN equipment so as to receive a startup or shutdown command sent by the external WLAN equipment and send a trigger signal to the switcher circuit when the startup or shutdown command is received, and the switcher circuit is used for controlling the portable electronic device to be in a shutdown state from a startup state to a startup state from a shutdown state after the trigger signal is received. The portable electronic device effectively avoids the occurrence of a situation that as the existing portable electronic device can not be subjected to remote shutdown, information stored in the device is leaked.

Description

Portable electron device

Technical field

The utility model relates to portable electron device, particularly a kind of portable electron device with remote control switch function.

Background technology

At present the power on-off modes of the portable electron devices such as mobile phone and personal terminal generally is to start shooting or shut down by the key that the user presses mobile phone.Lose or leave the user because of a variety of causes at one's side the time when portable electron device, the user can't carry out the switching on and shutting down operation to it.If this moment, portable electron device was obtained by other people, then wherein the userspersonal information of storage may be revealed.

The utility model content

For the problems referred to above, be necessary to provide a kind of portable electron device with remote control switch function.

A kind of portable electron device, comprise WLAN (wireless local area network) network card chip and central processing unit, described central processing unit comprises the on/off circuit that is electrically connected to described WLAN (wireless local area network) network card chip, described WLAN (wireless local area network) network card chip is used for communicating to receive start or the shutdown command that the external wireless lan device sends with the external wireless lan device, and when receiving described start or shutdown command, sending a trigger pip to described on/off circuit, described on/off circuit is used for controlling described portable electron device and is entered off-mode or entered open state by off-mode by open state after receiving described trigger pip.

Preferably, described trigger pip is pulse signal.

Preferably, described portable electron device also comprises level shifting circuit, and described level shifting circuit is used for changing the level state of described trigger pip.

Preferably, described portable electron device also comprises battery, and described battery is used for to described WLAN (wireless local area network) network card chip power supply and the power supply of described central processing unit.

Preferably, described portable electron device also comprises voltage conversion circuit, described voltage conversion circuit is used for the voltage of battery output is converted to respectively the operating voltage of described WLAN (wireless local area network) network card chip and described central processing unit, and exports respectively described WLAN (wireless local area network) network card chip and described central processing unit to.

Described portable electron device receives start-up command or the shutdown command that the external wireless lan device sends by described WLAN network card chip, make on/off circuit control portable electron device start or the shutdown of central processing unit, so realize the remote control switch control to portable electron device, effectively avoided existing portable electron device owing to causing the situation of leakage of information to occur by remote-control closedown.

Description of drawings

Fig. 1 is the functional block diagram of the portable electron device of the utility model preferred embodiments.

The main element symbol description

Portable electron device	100
		Computer	200
The WLAN network card chip	10
		Central processing unit	20
On/off circuit	21
		Level shifting circuit	30
Battery	40
		Voltage conversion circuit	50
Power pins	VDD
		Interrupt pin	IRQ
Trigger pin	PWR-ON

Following embodiment further specifies the utility model in connection with above-mentioned accompanying drawing.

Embodiment

See also Fig. 1, the portable electron device 100 of the utility model preferred embodiments comprises WLAN (wireless local area network) (Wireless Local Area Network, WLAN) network card chip 10, central processing unit 20, level shifting circuit 30, battery 40 and voltage conversion circuit 50.WLAN network card chip 10 is used for communicating to receive start or the shutdown command that outside wlan device (such as the computer 200 of present embodiment) sends with outside wlan device, and sends a trigger pip to central processing unit 20 when receiving described start or shutdown command; Central processing unit 20 is used for controlling portable electron device 100 and is entered off-mode or entered open state by off-mode by open state when receiving described trigger pip.

WLAN network card chip 10 comprises power pins VDD and interrupt pin IRQ.Described power pins VDD is electrically connected to battery 40 by voltage conversion circuit 50, to obtain operating voltage.Interrupt pin IRQ is electrically connected to level shifting circuit 30, and the start or the shutdown command that are used for sending according to outside wlan device are exported a trigger pip to described central processing unit 20.For example, after WLAN network card chip 10 received the start-up command that computer 200 sends by WLAN, 10 of WLAN network card chips were exported described trigger pip to level shifting circuit 30 by interrupt pin IRQ; Subsequently, after WLAN network card chip 10 received the shutdown command that computer 200 sends, 10 of WLAN network card chips were still exported described trigger pip to level shifting circuit 30 by interrupt pin IRQ.According to the different model of WLAN network card chip 10, the described trigger pip that interrupt pin IRQ sends can be high level signal or low level signal.Described start or shutdown command can be sent by the terminal control software of establishing in the computer 200.

Central processing unit 20 comprises on/off circuit 21 and is electrically connected to on/off circuit 21 and the triggering pin PWR-ON of interrupt pin IRQ.When triggering pin PWR-ON is effectively triggered, 100 starts of 21 control of described on/off circuit portable electron device or shutdown.Particularly, when portable electron device 100 is in open state, effectively triggered 100 shutdown of 21 control of on/off circuit portable electron device if trigger pin PWR-ON; And when portable electron device 100 is in off-mode, if triggering pin PWR-ON is effectively triggered, 100 starts of 21 control of on/off circuit portable electron device.According to the different model of central processing unit 20, trigger pin PWR-ON and can trigger or the low level triggering for high level.For example, when triggering pin PWR-ON is the high level triggering, if the level that triggers on the pin PWR-ON is high level, then on/off circuit 21 control portable electron devices 100 shutdown; And when the level on the triggering pin PWR-ON is high level again, 100 starts of on/off circuit 21 control portable electron devices.

Level shifting circuit 30 is electrically connected at interrupt pin IRQ and triggers between the pin PWR-ON, is used for the level state of the trigger pip that conversion interrupt pin IRQ sends, so that the level on the interrupt pin IRQ and the level match that triggers on the pin PWR-ON.For example, when described trigger pip is high level signal, and described triggering pin PWR-ON is the low level triggering, when being Low level effective, 30 trigger pips with described high level of described level shifting circuit are converted to a low level signal and export described interrupt pin IRQ to, with the described triggering pin of effective triggering PWR-ON.When the effective triggering level state as the level state of described trigger pip and described triggering pin PWR-ON of being appreciated that was identical, described level shifting circuit 30 can omit.

Voltage conversion circuit 50 is used for the voltage of battery 40 outputs is converted to respectively the operating voltage of WLAN network card chip 10 and the operating voltage of central processing unit 20, and exports respectively power pins VDD and central processing unit 20 to.So, when portable electron device 100 shutdown, battery 40 can be by 50 pairs of WLAN network card chips 10 of voltage conversion circuit and central processing unit 20 power supplies.Be appreciated that voltage conversion circuit 50 can omit when the operating voltage of the operating voltage of WLAN network card chip 10 and central processing unit 20 equates with the output voltage of battery 40.

Be appreciated that, because making the trigger pip of portable electron device 100 starts or shutdown all is same level signals, as be all high level or be all low level, therefore, can start shooting smoothly or shut down in order to make portable electron device 100, WLAN network card chip 10 is sending described trigger pip a period of time, namely, after making described trigger pip continue a Preset Time, then close described trigger pip, so can avoid affecting next time sending of trigger pip.That is to say that described trigger pip is pulse signal.

The course of work of this portable electron device 100 of brief description.

At first default portable electron device 100 is in open state.When needs make portable electron device 100 shutdown, 200 in computer sends described shutdown commands to WLAN network card chip 10, and WLAN network card chip 10 sends trigger pips and triggers 100 shutdown of described on/off circuit 21 control portable electron devices to the triggering pin PWR-ON of central processing unit 20.Described trigger pip is delayed time to Preset Time, and the WLAN network card chip then stops to export described trigger pip.When portable electron device 100 need to be started shooting again, 200 in computer sends described start-up command to WLAN

network card chip

10, and 10 of WLAN network card chips again send described trigger pip and trigger 100 starts of described on/off circuit 21 control portable electron devices to the triggering pin PWR-ON of central processing unit 20.Described trigger pip is delayed time to Preset Time, and the WLAN network card chip then stops to export described trigger pip again.

Described portable electron device 100 receives start-up command or the shutdown command that outside wlan device sends by described WLAN network card chip 10, make on/off circuit 21 control portable electron devices, 100 starts or the shutdown of central processing unit 20, so realize the remote control switch control to portable electron device 100, effectively avoided existing portable electron device owing to causing the situation of leakage of information to occur by remote-control closedown.

Claims

1. portable electron device, comprise WLAN (wireless local area network) network card chip and central processing unit, described central processing unit comprises the on/off circuit that is electrically connected to described WLAN (wireless local area network) network card chip, described WLAN (wireless local area network) network card chip is used for communicating to receive start or the shutdown command that the external wireless lan device sends with the external wireless lan device, and when receiving described start or shutdown command, sending a trigger pip to described on/off circuit, described on/off circuit is used for controlling described portable electron device and is entered off-mode or entered open state by off-mode by open state after receiving described trigger pip.

2. portable electron device as claimed in claim 1, it is characterized in that: described trigger pip is pulse signal.

3. portable electron device as claimed in claim 1, it is characterized in that: described portable electron device also comprises level shifting circuit, described level shifting circuit is used for changing the level state of described trigger pip.

4. portable electron device as claimed in claim 1, it is characterized in that: described portable electron device also comprises battery, described battery is used for to described WLAN (wireless local area network) network card chip power supply and the power supply of described central processing unit.

5. portable electron device as claimed in claim 4, it is characterized in that: described portable electron device also comprises voltage conversion circuit, described voltage conversion circuit is used for the voltage of battery output is converted to respectively the operating voltage of described WLAN (wireless local area network) network card chip and described central processing unit, and exports respectively described WLAN (wireless local area network) network card chip and described central processing unit to.