CN105844182A - Screen locking method and device of notebook computer and the notebook computer - Google Patents
Screen locking method and device of notebook computer and the notebook computer Download PDFInfo
- Publication number
- CN105844182A CN105844182A CN201610153980.8A CN201610153980A CN105844182A CN 105844182 A CN105844182 A CN 105844182A CN 201610153980 A CN201610153980 A CN 201610153980A CN 105844182 A CN105844182 A CN 105844182A
- Authority
- CN
- China
- Prior art keywords
- notebook computer
- screen locking
- upper cover
- magnetic switch
- state
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/82—Protecting input, output or interconnection devices
- G06F21/84—Protecting input, output or interconnection devices output devices, e.g. displays or monitors
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
- G06F1/1677—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts for detecting open or closed state or particular intermediate positions assumed by movable parts of the enclosure, e.g. detection of display lid position with respect to main body in a laptop, detection of opening of the cover of battery compartment
Abstract
The invention discloses a screen locking method and device of a notebook computer and the notebook computer. The method comprises following steps of detecting the state of the upper cover of the notebook computer; sending a scanning code for locking a screen to the keyboard buffer of the notebook computer if the state of the upper cover of the notebook computer is a closed state; and sending an interruption signal to the central processing unit of the notebook computer, thus enabling the central processing unit to invoke the keyboard driver in an operation system to execute the scanning code for locking the screen in the keyboard buffer. According to the technical scheme provided by the invention, whether the state of the upper cover of the notebook computer is the closed state is detected, if the state of the upper cover is the closed state, a screen locking instruction is sent to the keyboard buffer of the notebook computer, so that a screen locking operation is automatically carried out on the notebook computer when the upper cover of the notebook computer is in the closed state, an unauthorized user cannot access the notebook computer, and the security of the notebook computer is improved.
Description
Technical field
The present invention relates to terminal security technical field, particularly to a kind of notebook computer screen locking side
Method, device and notebook computer.
Background technology
Along with the development of information technology, increasing business people uses notebook computer
Move office.Simultaneously for the handheld mobile device at the interface having man-machine interaction, its peace
Full property and privacy are increasingly by the especially concern of users.
In the related, for handheld devices such as notebook computers, it is provided that multiple screen locking side
Method, simplest WIN key and the hot key combination of L key as pressed keyboard of notebook computer simultaneously,
I.e. can reach the purpose of screen locking.But, a lot of users complete to use the process of notebook computer
In, it is the most only that notebook computer is carried out closing lid, now, the backlight of notebook computer screen
Can turn off, but but there is no screen locking, and notebook computer often stores substantial amounts of information,
Unauthorized user still can access notebook computer, causes the safety of notebook computer to be subject to
Threaten.
Summary of the invention
In view of this, it is an object of the invention to provide the notes of a kind of safety improving notebook
This computer screen lock method, device and notebook computer.
To achieve these goals, the invention provides a kind of notebook computer screen locking method, bag
Include:
The state of the upper cover of detection notebook computer；
If the state of the upper cover of described notebook computer is closing lid state, then to described notebook electricity
The keyboard buffer of brain sends the scan code for screen locking；
Interrupt signal is sent to the central processing unit of described notebook computer, so that central processing unit
Keyboard driver in call operation system performs the scanning for screen locking in keyboard buffer
Code.
Preferably, upper cover and the base of described notebook computer is respectively arranged with the magnetic matched
Switch, correspondingly, the state of the upper cover detecting described notebook computer includes:
Whether the magnetic switch detecting the magnetic switch of the upper cover of described notebook computer and base is
Closure state.
Preferably, detect whether described magnetic switch is closure state, including:
Receive the signal of telecommunication that described magnetic switch sends；
According to the described signal of telecommunication, determine whether described magnetic switch is closure state.
Preferably, the wherein said scan code for screen locking includes the scan code corresponding to screen locking key,
Described screen locking key includes WIN key and the hot key combination of L key.
Based on same inventive concept, the present invention also provides for a kind of note-book computer lock screen device, bag
Include:
Detection module, for detecting the state of the upper cover of notebook computer；
First sending module, the state for the upper cover when described notebook computer is closing lid state
Time, send the scan code for screen locking to the keyboard buffer of described notebook computer；
Second sending module, interrupts letter for sending to the central processing unit of described notebook computer
Number, so that the keyboard driver in central processing unit call operation system performs keyboard buffer
In the scan code for screen locking.
Preferably, upper cover and the base of described notebook computer is respectively arranged with the magnetic matched
Switch, correspondingly, described detection module specifically for:
Whether the magnetic switch detecting the magnetic switch of the upper cover of described notebook computer and base is
Closure state.
Preferably, described detection module, also particularly useful for:
Receive the signal of telecommunication that described magnetic switch sends；
According to the described signal of telecommunication, determine whether described magnetic switch is closure state.
Preferably, wherein said first sending module is further configured to: what it sent is used for locking
The scan code of screen includes that the scan code corresponding to screen locking key, described screen locking key include WIN key and L
The hot key combination of key.
Based on same inventive concept, the present invention also provides for a kind of notebook computer, described notebook
The upper cover of computer and base are respectively arranged with the magnetic switch matched, including filling as above
Put, to realize method as above.
Compared with prior art, the method have the advantages that technical scheme
Whether it is closing lid state by the upper cover state of detection notebook computer, if closing lid state, then
Send the scan code for screen locking to the keyboard buffer of described notebook computer, make notebook electricity
When brain upper cover is closing lid state, automatically notebook computer is carried out the operation of screen locking, make unauthorized
User cannot access notebook computer, thus improves the safety of notebook computer.
Accompanying drawing explanation
Fig. 1 is the flow chart of the embodiment one of the notebook computer screen locking method of the present invention；
Fig. 2 is the flow chart of the embodiment two of the notebook computer screen locking method of the present invention；
Fig. 3 is the notebook computer magnetic of the embodiment two of the notebook computer screen locking method of the present invention
Property switch schematic diagram；
Fig. 4 is the schematic diagram of the embodiment one of the note-book computer lock screen device of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is made the most in detail
Describe.Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
Generally, the keyboard of notebook computer be internally provided with embedded controller (Embedded
Contrallor, EC), it controls whole work of keyboard, such as during booting computer startup
The self-inspection of keyboard, scanning, the buffering of scan code and with communication of main frame etc..When in keyboard
Key when being pressed, EC is just according to the position of this key, by signal of telecommunication conversion corresponding for this key
Become binary code, be sent to central processing unit (Central Processing Unit, CPU)
And display.If the input speed of user is quickly or CPU is processing other task, just
First the keyboard buffer that the binary code of conversion is delivered in internal memory is kept in, wait CPU idle
Shi Zaicong keyboard buffer takes out temporary binary code analysis and performs.General notebook
It is both provided with a lot of shortcut, such as, Win+R on the keyboard of computer, opens human window；
Win+E, opens explorer；Win+F, opens search window；Win+M, minimizes all
Window；Win+D, performs " display desktop " order (effect is equal to Win+M)；Win+L,
Locking computer；Win+U, opens " utilman ".Wherein, Win+L, for notes
The screen locking key of this computer.Purpose for notebook computer screen locking is to make notebook computer in not suspension
In the case of, prevent authorized user's not unauthorized user use computer when notebook computer is other,
Thus affect the safety of notebook computer.Prior art is all to be manually pressed by screen locking by user
Shortcut carry out screen locking for notebook computer.User is in order to simply sometimes, only
It is that the upper cover of notebook computer is closed, but is so only capable of turning off the backlight of screen, not lock
Screen, thus reduce the safety of notebook computer.
Fig. 1 is the flow chart of the embodiment one of the notebook computer screen locking method of the present invention, such as Fig. 1
Shown in, the notebook computer screen locking method of the present embodiment, specifically can include following following steps:
S101, the state of the upper cover of detection notebook computer.
The executive agent of the present embodiment is EC.In the specific implementation, detection notebook computer is upper
The state of lid has a variety of method, such as, in one of them embodiment of the present invention, permissible
By being respectively provided with the magnetic switch matched on the upper cover of notebook computer and base, according to
Hall effect principle, when magnetic switch produces the signal of telecommunication, it is known that notebook computer is upper
Lid is closing lid state；In other embodiments of the invention, detection screen back light modulation can be used
Mode determine whether the upper cover of notebook computer is closing lid state.And it is not limited to this.
S102, if the state of the upper cover of notebook computer is closing lid state, then to notebook computer
Keyboard buffer send for the scan code of screen locking.
Specifically, detect that the upper cover of notebook computer is closing lid state, then to notebook as EC
Keyboard buffer in the internal memory of computer, specifically internal memory, sends the scan code for screen locking.
Under normal circumstances, the hot key combination of WIN key+L key can be set to by the manufacturer of notebook computer
The screen locking key of acquiescence, but can also be using other shortcuts as screen locking key.
S103, sends interrupt signal to the central processing unit of described notebook computer, so that central
Keyboard driver in processor call operation system perform in keyboard buffer for screen locking
Scan code.
Specifically, EC keyboard buffer in internal memory sends while the scan code of screen locking,
Also send an interrupt signal to CPU, after CPU receives the interrupt signal that EC sends, start
Perform the instruction of the screen locking corresponding to scan code in the keyboard driver in operating system, to reach
The purpose locked screen automatically for notebook computer.Those skilled in the art should be it is recognised that so-called
Although keyboard driver title is similar to hardware names, but be really made up of some codes
Software, and when code is performed, it is referred to as instruction by CPU.Wherein keyboard driver comprises
The instruction of the function performed by each key, the most just includes screen locking instruction.
Whether the technical scheme of the present embodiment is closing lid by the upper cover state of detection notebook computer
State, if closing lid state, then sends for screen locking to the keyboard buffer of notebook computer
Scan code, when to make notebook computer upper cover be closing lid state, locks notebook computer automatically
The operation of screen, makes unauthorized user cannot access notebook computer, thus improves notebook electricity
The safety of brain.
Fig. 2 is the flow chart of the embodiment two of the notebook computer screen locking method of the present invention, this reality
Execute the notebook computer screen locking method of example on the basis of above-described embodiment one, the most detailed
Carefully introduce technical scheme.As in figure 2 it is shown, the note-book computer lock of the present embodiment
Screen method, specifically may include steps of:
Whether S201, the magnetic switch of the upper cover of detection notebook computer and the magnetic switch of base
For closure state, wherein, the upper cover of notebook computer and base are respectively arranged with the magnetic matched
Property switch.
Further, the magnetic switch matched it is provided with at notebook upper cover and base.Such as,
The magnetic switch of upper cover is magnet ring, and the magnetic switch of base is magnetic red sheet, when upper cover closing course
In, the magnet ring set by upper cover, move closer to the magnetic red sheet set by base, imitate according to Hall
Answering principle, magnet ring and magnetic red sheet mutual induction, can produce the signal of telecommunication, this signal of telecommunication is sent out by magnet ring
Deliver to EC, EC according to receiving the signal of telecommunication that magnet ring is sent, it may be determined that on notebook computer
Lid for closing lid state.
The magnetic switch of the present invention can use magnetic switch of the prior art, in the present embodiment
Magnetic switch circuit as it is shown on figure 3, include chip U21 at magnetic switch, chip U21's
OUTPUT pin connects EC, OUTPUT pin and is also connected with the first electric capacity C1The first end, first
Electric capacity C1The second end ground connection, the first electric capacity C1The second end be also connected with the second electric capacity C2First
End, the first end of the second electric capacity is also connected with the GND pin of chip 21, the second electric capacity C2Second
End connects first end of resistance R, and the VCC pin of chip U21 connects first end of resistance R,
Second end of resistance R connects running voltage, such as 3V power supply.Specifically, close at notebook
During upper cover, the chip U21 in magnetic switch produces electric current according to changes of magnetic field, OUTPUT draw
Foot exports, and sends to EC, so that EC detects that magnetic switch is closure state.
S202, if the magnetic switch of the magnetic switch of the upper cover of notebook computer and base is Guan Bi
State, then send WIN key and the hot key combination institute of L key to the keyboard buffer of notebook computer
Corresponding scan code.
Such as, when user makes to be finished notebook computer, and when leaving computer, often will notes
The upper cover of this computer closes, and now EC detects set by upper cover and the base of notebook computer
Whether magnetic switch is closure state, if magnetic switch is closure state, then EC by WIN key and
The keyboard buffer that screen locking scan code corresponding to the hot key combination of L key is sent in internal memory.
S203, sends interrupt signal to the central processing unit of described notebook computer, so that central
Keyboard driver in processor call operation system perform in keyboard buffer for screen locking
Scan code.
Specifically, EC keyboard buffer in internal memory sends while the scan code of screen locking,
Also send an interrupt signal to CPU, after CPU receives the interrupt signal that EC sends, start
Perform the instruction of the screen locking corresponding to scan code in the keyboard driver in operating system, to reach
The purpose locked screen automatically for notebook computer.Those skilled in the art should be it is recognised that so-called
Although keyboard driver title is similar to hardware names, but be really made up of some codes
Software, and when code is performed, it is referred to as instruction by CPU.Wherein keyboard driver comprises
The instruction of the function performed by each key, the most just includes screen locking instruction.
Whether the technical scheme of the present embodiment is Guan Bi by the magnetic switch of detection notebook computer
State, if closure state, then sends the scanning of screen locking to the keyboard buffer of notebook computer
Code, makes CPU perform the instruction of the screen locking corresponding to keyboard driver in operating system, to realize
Automatically notebook computer is carried out the operation of screen locking, thus improves the safety of notebook computer.
Fig. 4 is the schematic diagram of the embodiment one of the note-book computer lock screen device of the present invention, such as Fig. 4
Shown in, the note-book computer lock screen device of the present embodiment, specifically can include detection module 41 He
Sending module 42.
Detection module 41, for detecting the state of the upper cover of notebook computer；
First sending module 42, is used for when the state of the upper cover of notebook computer is closing lid state,
The scan code for screen locking is sent to the keyboard buffer of notebook computer；
Second sending module, interrupts letter for sending to the central processing unit of described notebook computer
Number, so that the keyboard driver in central processing unit call operation system performs keyboard buffer
In the scan code for screen locking.
The note-book computer lock screen device of the present embodiment, by using above-mentioned module to notebook electricity
Brain carries out the realization mechanism of screen locking and the notebook computer screen locking method of above-mentioned embodiment illustrated in fig. 1
Realization mechanism identical, be referred to the record of above-mentioned embodiment illustrated in fig. 1 in detail, at this not
Repeat again.
The schematic diagram of the embodiment two of the note-book computer lock screen device of the present invention is consistent with Fig. 4,
Specifically referring to Fig. 4, the note-book computer lock screen device of the present embodiment is in enforcement as shown in Figure 4
On the basis of example one, introduce technical scheme the most in further detail.Such as Fig. 4 institute
Show that the note-book computer lock screen device of the present embodiment can include as follows further.
The upper cover of notebook computer and base are respectively arranged with the magnetic switch matched, correspondingly,
Detection module 41 specifically for:
Whether the magnetic switch of upper cover and the magnetic switch of base of detection notebook computer are Guan Bi
State.
Detection module 41 also particularly useful for:
Receive the signal of telecommunication that magnetic switch sends；
According to the signal of telecommunication, determine whether magnetic switch is closure state.
Wherein, the first sending module is further configured to: its scan code for screen locking sent
Including the scan code corresponding to screen locking key, described screen locking key includes the hot key group of WIN key and L key
Close.
The note-book computer lock screen device of the present embodiment, by using above-mentioned module to notebook electricity
Brain carries out the realization mechanism of screen locking and the notebook computer screen locking method of above-mentioned embodiment illustrated in fig. 2
Realization mechanism identical, be referred to the record of above-mentioned embodiment illustrated in fig. 2 in detail, at this not
Repeat again.
The present invention also provides for a kind of notebook computer, and upper cover and base at this notebook computer set
Being equipped with the magnetic switch matched, this notebook computer also includes reality as shown in Figure 3 or Figure 4
Execute the device of example, it is possible to the method for realization embodiment as shown in Figure 1 or 2.
Above example is only the exemplary embodiment of the present invention, is not used in the restriction present invention, this
The protection domain of invention is defined by the claims.Those skilled in the art can be the present invention's
In essence and protection domain, the present invention is made various amendment or equivalent, this amendment or
Equivalent also should be regarded as being within the scope of the present invention.
Claims (9)
1. a notebook computer screen locking method, it is characterised in that including:
The state of the upper cover of detection notebook computer；
If the state of the upper cover of described notebook computer is closing lid state, then to described notebook electricity
The keyboard buffer of brain sends the scan code for screen locking；
Interrupt signal is sent to the central processing unit of described notebook computer, so that central processing unit
Keyboard driver in call operation system performs the scanning for screen locking in keyboard buffer
Code.
Method the most according to claim 1, it is characterised in that described notebook computer
Upper cover and base are respectively arranged with the magnetic switch matched, and correspondingly, detect described notebook
The state of the upper cover of computer includes:
Whether the magnetic switch detecting the magnetic switch of the upper cover of described notebook computer and base is
Closure state.
Method the most according to claim 2, it is characterised in that detect described magnetic switch
Whether it is closure state, including:
Receive the signal of telecommunication that described magnetic switch sends；
According to the described signal of telecommunication, determine whether described magnetic switch is closure state.
4. according to the method described in any one of claim 1-3, it is characterised in that wherein said
Scan code for screen locking includes that the scan code corresponding to screen locking key, described screen locking key include WIN
Key and the hot key combination of L key.
5. a note-book computer lock screen device, it is characterised in that including:
Detection module, for detecting the state of the upper cover of notebook computer；
First sending module, the state for the upper cover when described notebook computer is closing lid state
Time, send the scan code for screen locking to the keyboard buffer of described notebook computer；
Second sending module, interrupts letter for sending to the central processing unit of described notebook computer
Number, so that the keyboard driver in central processing unit call operation system performs keyboard buffer
In the scan code for screen locking.
Device the most according to claim 5, it is characterised in that described notebook computer
Upper cover and base be respectively arranged with the magnetic switch matched, correspondingly, described detection module
Specifically for:
Whether the magnetic switch detecting the magnetic switch of the upper cover of described notebook computer and base is
Closure state.
Device the most according to claim 6, it is characterised in that described detection module, also
Specifically for:
Receive the signal of telecommunication that described magnetic switch sends；
According to the described signal of telecommunication, determine whether described magnetic switch is closure state.
8. according to the device described in any one of claim 5-7, it is characterised in that wherein said
First sending module is further configured to: its scan code for screen locking sent includes screen locking key
Corresponding scan code, described screen locking key includes WIN key and the hot key combination of L key.
9. a notebook computer, it is characterised in that the upper cover of described notebook computer and base
It is respectively arranged with the magnetic switch matched, including the dress as described in any one of claim 5-8
Put, to realize the method as described in any one of claim 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610153980.8A CN105844182A (en) | 2016-03-16 | 2016-03-16 | Screen locking method and device of notebook computer and the notebook computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610153980.8A CN105844182A (en) | 2016-03-16 | 2016-03-16 | Screen locking method and device of notebook computer and the notebook computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105844182A true CN105844182A (en) | 2016-08-10 |
Family
ID=56587240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610153980.8A Pending CN105844182A (en) | 2016-03-16 | 2016-03-16 | Screen locking method and device of notebook computer and the notebook computer |
Country Status (1)
| Country | Link |
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| CN (1) | CN105844182A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108010760A (en) * | 2016-10-28 | 2018-05-08 | 研能科技股份有限公司 | Liftable keyboard structure |
| CN108010761A (en) * | 2016-10-28 | 2018-05-08 | 研能科技股份有限公司 | Liftable keyboard structure |
| CN111506352A (en) * | 2020-04-17 | 2020-08-07 | 上海闻泰信息技术有限公司 | Method and device for judging closing of notebook computer, computer and storage medium |
| CN113468490A (en) * | 2020-03-30 | 2021-10-01 | 阿里巴巴集团控股有限公司 | Screen locking method, device and equipment of terminal equipment |
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| CN111506352B (en) * | 2020-04-17 | 2024-01-26 | 上海闻泰信息技术有限公司 | Method and device for judging closing of notebook computer, computer and storage medium |
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Application publication date: 20160810 |
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