CN1399179A

CN1399179A - Automatic power-off control method

Info

Publication number: CN1399179A
Application number: CN 02100137
Authority: CN
Inventors: 陈建源
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-14
Filing date: 2002-01-14
Publication date: 2003-02-26

Abstract

The present invention is an automatic power-off control method, especially an autoamtic power-off control method for computer in vehicle, aircraft, ship, etc. The said method makes the computer turn off in normal steps to avoid damage in case of the computer is in abnormal power-off state. An off controller is set between the battery power source and the computer for detection and control. The off controller monitors the power source state of both of battery power source and the computer constantly. In case that the switch is turned off while the computer is not shut off in advance, the computer is made to enter a normal off mode. After the computer is turned off normally, a confirmation signal is fed to the off controller for it to turn off the general power supply.

Description

A kind of control method of automatic outage

Technical field

The present invention relates to electric type, particularly a kind of control method of automatic outage refers to especially that a kind of computer apparatus of guaranteeing to be arranged on carrier is unlikely to be subjected to the improper operation of electric switch key and the impaired automatic shutdown control method of computer, to keep the stable running of computer apparatus.

Technical background

Because science and technology development, the volume of computer apparatus constantly dwindles, not only can be made into portable computer, outside notebook computer and the palmtop computer, more can be designed to for being installed in vehicle, use on aircraft and the boats and ships, except cooperatively interacting as the coordinate of the satellite navigation location with the GPS (GPS) that gradually is subjected to now generally to pay attention to, also extendible is other commercialities or recreational purposes etc., make the theory of portable office be achieved, yet on carrier during the general or comprehensive use computer apparatus of desire, requirement at least is for guaranteeing the stability of power supply supply, to avoid computer apparatus to suffer undesired shutdown or improper outage and be damaged, yet the power supply area that carrier can Gong take is divided into two kinds of kenels of power supply of controlling or directly take the engine room storage battery through the electric switch key, wherein, seeing through the electric switch key takes under the kenel of power supply, as cigarette lighter plug, if the user fails to give earlier with the computer apparatus normal shutdown, promptly directly the electric switch key is closed when getting off, the situation of the undesired shutdown of aforementioned computer promptly takes place quite easily, cause the impaired probability of computer apparatus to increase, if the occasion that the power supply of computer and storage battery directly are communicated with, though there is not the aforementioned problem that causes the improper shutdown of computer, on the contrary under the situation of computer apparatus not being shut down, cause the consume of storage battery over-discharge can easily, even the puzzlement that vehicle etc. may take place to start, so computer apparatus is widely used on the carrier, how to guarantee the computer apparatus not carelessness used of reason and the impaired important topic that can not be ignored that is based on aforementioned desire.

Particular content

Purpose of the present invention is exactly to be subjected to the improper operation of electric switch key and impaired shortcoming at the above-mentioned computer that is arranged on carrier is unlikely, a kind of control method of automatic outage is provided, for a kind of can be when predicting computer apparatus and not shutting down, automatically send the shutdown signal of a simulation, make computer apparatus automatically enter shutdown procedures, in good time row cuts off the general supply of computer apparatus again, forms a kind ofly to guarantee that computer apparatus is not influenced by human negligence; For seeing through a closedown controller as the control station between battery power and the computer apparatus, closedown controller can detect the machine open/close state of electric switch, computer apparatus simultaneously, and can send the signal of order computer shutdown according to status in good time; Be in the closing state in predicting the electric switch key, more include a step of waiting for, to avoid because of electric switch moment keying and to prevent misoperation; The step of the method comprises: the key operated step of a detecting electric switch, can record under the state that is in unlatching, and start closedown controller, and enter initial phase; The step that the power switch of one detecting computer apparatus starts; After one power switch that predicts aforementioned computer apparatus starts, trigger this closedown controller, begin the computer apparatus power supply is made starting up for computer and the step that enters normal operating conditions; The step whether one detecting electric switch key closes when predicting to closed condition, is sent the shutdown signal to computer apparatus, and waits for computer apparatus passback affirmation signal; One when the affirmation signal that receives the computer apparatus passback or after waiting for one period time delay, closes the step of computer apparatus general supply; Constitute one according to this and can guarantee computer apparatus under electric switch opens and closes abnormal operation, but the computer power control method of normal switch machine still.

Another object of the present invention is to provide a kind of control method of automatic outage, wherein should wait in the step of computer apparatus passback affirmation signal, also comprise a step that whether exceeds the stand-by period, when not receiving the signal of computer apparatus passback yet if exceed the stand-by period, also direct power-off with computer apparatus is to avoid excessive power consumption.

Description of drawings

Fig. 1 is a controlled step process flow diagram of the present invention.

Fig. 2 is the embodiment calcspar of control method of the present invention.

30 is that closedown controller, 31 is that wave filter, 20 is that computer apparatus, 23 is that CPU (central processing unit), 25 is that wafer set, 22 is that keyboard port,input-output, 33 is that control module, 32 is that relay, 28 is that power supply changeover device, 24 is that memory body, 26 is that I/O wafer, 29 is that on-off element, 21 is that PC power source switch, 27 is the bios memory body.

Embodiment

Control mode of the present invention, below only it is described with the embodiment that is applied on the vehicle of accompanying drawing 2, the computer apparatus 20 on right side and the battery power in left side (+12V) and between the key switch (ACC), one closedown controller 30 is set as relay station, this closedown controller 30 be comprise one with vehicle accumulator the power supply (+power-supply filter 31 that 12V) is connected, 33 common compositions of the single-chip microcomputer control unit of one power supply relay 32 and this power supply relay 32 of a may command, and the output terminal of power supply relay 32 (VOUT) is for forming the general supply end points of a supply computer apparatus 20, also be whether these closedown controller 30 may command computer apparatus 20 must power, but this single-chip microcomputer control unit 33 is provided with the input end and of detecting vehicle electric switch key (ACC) state is connected and can receives computer passback start or shutdown affirmation signal with PC power source switch 21 detection end points (GPIO), in addition, more be provided with one can send the shutdown analog signal shutdown signal output end point (SIGN), can send keyboard port,input-output 22 places of shutdown signal to computer apparatus 20, order computer device 20 shuts down automatically.

And the inner structure of aforementioned computer apparatus 20, general identical with common PC, be provided with CPU (central processing unit) 23 equally, random access memory 24, wafer set 25, I/O wafer 26, bios memory body 27,28 common compositions of keyboard port,input-output 22 and power supply changeover device, they are different with common computer apparatus be in: give at I/O wafer 26 places and to leave one and confirm signal (GPIO) output port, this output port can see through an on-off element 29 and form one for affirmation signal (GPIO) output terminal that is connected with closedown controller 30, and this output terminal more cross-over connection one PC power source switch 29 is arranged, this end points is had concurrently send the effect that signal is confirmed in start, but for notifying closedown controller 30 power supplies to computer apparatus 20 places, so that enter normal operation; In addition, also a resident formula must be installed on computer apparatus 20, so that behind booting computer, await orders and receive the start signal (SIGN) that closedown controller 30 is sent into, and passback confirms that signal (GPIO) is to closedown controller 30 places, use the complete control of formation, and should resident formula also only be that one is implemented kenel, in fact also can see through the hardware mode and reach identical effect.

Among the embodiment of above-mentioned accompanying drawing 2, for constituting electric switch key switch (ACC) signal that can receive vehicle, automatically send the shutdown signal, and receive passback the affirmation signal and can be when the vehicle electrical door key be closed, can be from shutdown of command of execution computer apparatus and the control device of after shutdown is finished, cutting off computer power automatically, and aforementioned closedown controller 30 also can directly be integrated in the computer apparatus 20 when reality is implemented, and should belong to the scope of enforcement.

As shown in Figure 1, use concrete steps on the vehicle for the present invention:

On the key operated step of one detecting vehicle electric switch 2, can predict under the state that is in unlatching, make the control module of controller enter the making stage 3 just;

The step 4 whether the PC power source switch of one detecting computer apparatus starts;

One detect the PC power source of aforementioned computer apparatus switch activated after, trigger power supply relay or like 5, begin power supply to PC, make starting up for computer and the step that enters normal operating conditions;

The step 6 whether one detecting PC power source switch closes when this PC power source switch manually pressed, promptly enters step 61, and closed relay or like cut off the PC electric power supply, make computer apparatus be not power consumption state fully;

One when the PC power source switch does not cut out, the step 7 whether detecting vehicle electric switch key closes, when predicting when closing for the electric switch key, after then whether arriving the time delay of setting-up time 8 through one, can be located at about 5-11 scope second in this example, send the shutdown signal and give PC, and wait for the affirmation signal 9 that computer apparatus passback shutdown finishes;

Whether one detecting receives passback signal 10, treats the time 11 when receiving or surpassing first-class, can be located at the about 30-60 scope of second in this example, and when receiving not yet, the step 12 of computer apparatus general supply is closed in enforcement; And in the previous embodiment, also can will confirm that signal (GPIO) dispenses, when closedown controller is sent shutdown signal (SIGN) to computer apparatus (PC), directly control via the internal clocking mode, and treat one give the time delay of setting earlier after, promptly cut off the power supply of computer apparatus automatically, but also belong to practical range.

Above-mentioned control mode, promptly constitute a monitoring computer device user mode, outside in good time power supply or outage, more can be when the electric switch key be closed, the proactive notification computer apparatus enters shutdown programm and cuts off supply electric power, form one and can break through the restriction that traditional computer apparatus only can artificially shut down, and when it collocation used, arbitrarily close the injury that is caused on various carrier to prevent the carrier electric switch.

Claims

1, a kind of control method of automatic outage, it comprises the steps:

One is provided with the step of a shutdown control device between the storage battery of carrier and computer apparatus; One for being provided with the step that can receive the shutdown signal and send the port,input-output of machine open/close affirmation signal on computer apparatus; One order shutdown control device is made as and can receives electric switch key switch signal simultaneously, receives machine open/close and confirms signal and the step of sending the shutdown signal; One is can be at electric switch key operated and when the power switch of computer apparatus is opened, and connects the energising step of storage battery electric power to computer apparatus; One can computer apparatus do not shut down and electric switch key closing state under, send automatically one the shutdown signal to computer apparatus, make it enter the step of shutdown mode; After signal is confirmed in one wait computer apparatus passback shutdown, cut off the step of computer apparatus power supply automatically; Constituting one according to this can close down in that electric switch is improper, can notify and force the computer apparatus control method of shutdown automatically.

2, according to the control method of the described a kind of automatic outage of claim 1, wherein this shutdown control device comprises as follows: can receive the electric power from storage battery, carry out the step of noise filtering; Can handle or send the control module that drives signal to the external signal of sending into; Reaching one can switch on or off according to this control module decision electric power.

3,, wherein in the step that this judgement electric switch key is closed, further comprise judging whether time that this electric switch key is closed surpass the step of a setting-up time, to prevent misoperation according to the control method of the described a kind of automatic outage of claim 1.

4, according to the control method of the described a kind of automatic outage of claim 3, wherein this setting-up time can be located at 5～11 seconds scope.

5, according to the control method of the described a kind of automatic outage of claim 1, wherein should wait in the step of computer apparatus passback affirmation signal, comprise more that one set the step of stand-by period.

6, according to the control method of the described a kind of automatic outage of claim 5, wherein waiting time can be located in about 30～60 seconds scope.

7, according to the control method of the described a kind of automatic outage of claim 5, wherein, also close the step of computer apparatus power supply for when not receiving the passback signal yet above the stand-by period of setting.

8, a kind of control method of automatic outage comprises following step: one is provided with the step of a shutdown control device between the storage battery of carrier and computer apparatus; One for being provided with the step that can receive the shutdown signal and send the port,input-output of machine open/close affirmation signal on computer apparatus; One order shutdown control device is made as can receive electric switch key switch signal simultaneously, receive machine open/close confirms signal and the step of sending the shutdown signal; One is can be at electric switch key operated and when the power switch of computer apparatus is opened, and connects the energising step of storage battery electric power to computer apparatus; One can computer apparatus do not shut down and electric switch key closing state under, send automatically one the shutdown signal to computer apparatus, make it enter the step of shutdown mode; One wait for a time delay after, cut off the step of computer apparatus general supply automatically; Constituting one according to this can close down in that electric switch is improper, can notify and force the computer apparatus control method of outage automatically.

9, according to the control method of the described a kind of automatic outage of claim 8, wherein this shutdown control device comprises: can receive the electric power from storage battery, carry out the step of noise filtering; Can handle or send the control module that drives signal to the external signal of sending into; Reaching one can switch on or off according to this control module decision electric power.

10,, wherein in the step that this judgement electric switch key is closed, further comprise judging whether time that this electric switch key is closed surpass the step of a setting-up time, to prevent misoperation according to the control method of the described a kind of automatic outage of claim 8.

11, according to the control method of the described a kind of automatic outage of claim 10, wherein this setting-up time is located at 5～11 seconds scopes.

12, according to the control method of the described a kind of automatic outage of claim 8, wherein should can be located at about 30～60 seconds scope time delay.