CN101964038A - Computer device for preventing camera shooting function from being embezzled and camera power supply control method - Google Patents
Computer device for preventing camera shooting function from being embezzled and camera power supply control method Download PDFInfo
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- CN101964038A CN101964038A CN2009101579970A CN200910157997A CN101964038A CN 101964038 A CN101964038 A CN 101964038A CN 2009101579970 A CN2009101579970 A CN 2009101579970A CN 200910157997 A CN200910157997 A CN 200910157997A CN 101964038 A CN101964038 A CN 101964038A
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Abstract
The invention relates to a computer device for preventing camera shooting function from being embezzled and a camera power supply control method, in particular to a computer device for preventing the camera shooting function from being embezzled. The computer device is connected with a network camera and supplies a power supply to the network camera, the computer device comprises an embedded controller and a switching circuit, the embedded controller is provided with a control module and a first pin, the control module is used for outputting a control signal representing conducting/un-conducting to the first pin, and the switching circuit is connected with the power supply and bridged between the first pin and the network camera and enables the power supply to be supplied or not to be supplied to the network camera according to the control signal of the first pin. According to the invention, the power supply of the network camera is controlled by using the characteristic of the embedded controller as a closed system and matching with the switching circuit, thus the spite invasion and crack of outside can be effectively interdicted.
Description
Technical field
The present invention relates to a kind of computer installation and power control method, particularly relate to a kind of computer installation and web camera power control method that prevents that camera function is stolen.
Background technology
Web camera (IP Camera) has become the built-in device of standard of numerous notebook computers now, the user utilizes the network shooting function to record/transmit the friend that image is given the network other end easily, becomes that the online friend keeps up a friendship or even transmits the agencies of liaison of individual secret image.
Consult Fig. 1, computer installation 9 has a web camera 8, a central processing unit 90, basic input and output (BIOS) module 91, a power supply unit 92, a peripheral control circuit 93 and a USB transmission interface 94; Wherein, web camera 8 is transferred to peripheral controller 93 for subsequent applications with the signal of video signal of shooting with video-corder by USB transmission interface 94, and web camera 8 is also obtained the power Vcc of supplying with from power supply unit 92 by USB transmission interface 94.
Whether the camera function that general user often fails to discover web camera 8 suffers network hacker to crack the Be Controlled of going forward side by side, with the trojan horse program of usurping camera function is example, its may mounting in operating system or other programs, promptly obtain the control of web camera 8 after machine to be calculated 9 starts, become intentionally the personage and be engaged in Remote and do some illegal hacker's behaviors of using a hidden recorder or propagating image.
Summary of the invention
Conception of the present invention, mainly be utilize embedded controller be the characteristic of closed system come the Control Network video camera power supply whether, avoid extraneous malicious intrusions by this and crack and block illegal hacker's behavior of using a hidden recorder or propagating image.
Therefore, first purpose of the present invention promptly is to provide a kind of enclosed embedded controller and computer installation and the web camera power control method of on-off circuit to prevent that camera function is stolen of utilizing.
So, the computer installation that prevents that camera function is stolen of the present invention, described computer installation connects and supplies a power supply and give a web camera, and this computer installation is characterised in that: this computer installation also comprises an embedded controller and an on-off circuit.This embedded controller has a control module and one first pin, and on behalf of the control signal of conducting/not conducting, this control module give this first pin in order to export one; This on-off circuit connects this power supply and bridges between this first pin and this web camera, gives this web camera according to the control signal of the conducting/not conducting of this first pin export/not export this power supply.
The web camera power control method that prevents that camera function is stolen of the present invention, be to carry out at a computer installation with an embedded controller and a web camera, this method comprises the steps: that (a) this embedded controller output one represents the control signal of conducting/not conducting to an on-off circuit that bridges between a power supply and this web camera; And (b) this on-off circuit according to the control signal of this conducting/not conducting export/not export this power supply to this web camera.
Second purpose of the present invention promptly is to provide a kind of and utilizes embedded controller to detect and at the computer installation and the web camera power control method of the power supply supply status of computer installation display network video camera.
So the computer installation that prevents that camera function is stolen of the present invention, described computer installation connect and supply a power supply and give a web camera, and this computer installation also comprises an embedded controller and an on-off circuit.This embedded controller has first pin that a control module and electrically connects this control module, and on behalf of the control signal of conducting/not conducting, this control module give this first pin in order to export one; This on-off circuit connects this power supply and bridges between this first pin and this web camera, gives this web camera in order to accept not switch export/not export this power supply, and; By this, the control module of this embedded controller detects the power supply supply status of this web camera by this first pin and exports a status signal for this computer installation demonstration.
The web camera power control method that prevents that camera function is stolen of the present invention, be to carry out at a computer installation with an embedded controller and a web camera, this method comprises the steps: that (a) this embedded controller detection one bridges at the power supply supply status of the on-off circuit between a power supply and this web camera; Reach (b) this embedded controller supplies the status signal of this computer installation demonstration according to the power supply supply status output one of this web camera.
The computer installation that camera function is stolen and the technological means and the effect of web camera power control method of preventing of the present invention is: the first, utilize embedded controller be the characteristic of closed system and collocation on-off circuit Control Network video camera the power supply supply whether, therefore can effectively block extraneous malicious intrusions and crack; The second, utilize embedded controller to detect the power supply supply status of web camera and show, the power supply supply status that the user can be known learn web camera at computer installation.
Description of drawings
Fig. 1 is a circuit block diagram, and the computer installation of present built-in web camera is described;
Fig. 2 is a circuit block diagram, and first preferred embodiment that prevents the computer installation that camera function is stolen of the present invention is described;
Fig. 3 is a circuit block diagram, and the embedded controller that computer installation has is described;
Fig. 4 is a process flow diagram, and the web camera power control method that prevents that camera function is stolen of the present invention is described; And
Fig. 5 is a circuit block diagram, and second preferred embodiment that prevents the computer installation that camera function is stolen of the present invention is described.
The primary clustering symbol description:
(known) 14..........................USB transmission interface
8................... web camera 15.......................... keyboard
9................... computer installation 16.......................... display
90.................. central processing unit 21,21 ' ... ... ... the .. embedded controller
91..................BIOS module 210......................... control module
92.................. power supply unit 211......................... first pin
93.................. peripheral control circuit 211 ' ... ... ... ... the ..GPIO pin
94..................USB transmission interface 212......................... second pin
(the present invention) 213......................... storer
1,1 ' ... ... .. computer installation 214......................... interface module
10.................. central processing unit 22,22 ' ... ... ... the .. on-off circuit
11..................BIOS module 23.......................... switch module
12.................. power supply unit 3........................... web camera
13.................. peripheral control circuit 401～403..................... step
Embodiment
About aforementioned and other technology contents, characteristics and effect of the present invention, in the detailed description of following cooperation two preferred embodiments with reference to the accompanying drawings, can clearly present.Before the present invention is described in detail, be noted that in the following description content similarly assembly is to represent with identical numbering.
Consult Fig. 2, in first preferred embodiment that prevents the computer installation that camera function is stolen of the present invention, computer installation 1 have a central processing unit 10, one basic input and output (BIOS) module 11, one power supply unit 12, one peripheral control circuit 13, an one USB transmission interface 14 and a keyboard 15, and computer installation 1 connects a web camera 3, web camera 3 is transferred to peripheral controller 13 by USB transmission interface 14 with the signal of video signal of shooting with video-corder and uses for the subsequent applications program, and web camera 3 is also obtained the power Vcc of supplying with from power supply unit 12 by USB transmission interface 14.
The computer installation that is different from existing built-in web camera, computer installation 1 also comprise an embedded controller (Embedded Controller; Be called for short EC) 21, one on-off circuit 22 and a switch module 23.
Because embedded controller 21 all belongs to each producer's customization and externally not open with the communication of BIOS module 11, therefore utilize embedded controller be the characteristic of closed system and collocation on-off circuit Control Network video camera the power supply supply whether, can effectively block extraneous malicious intrusions and crack.
On-off circuit 22 connects the power Vcc of power supply units 12, and bridges between first pin 211 and the USB transmission interface 14, and on-off circuit 22 mainly is the control signal according to first pin 211, export/does not export this power Vcc to web camera 3.
Consult Fig. 3, the embedded controller 21 that this preferred embodiment is adopted is embedded keyboard controller, have a control module 210, a storer 213, an interface module 214, one first pin 211 and one second pin 212, wherein, interface module 214 is in order to handle the input function of keyboard 15, owing to be not emphasis of the present invention, seldom be described at this.
Consult Fig. 2 and Fig. 3, the program in control module 210 pseudostatic rams 213 is to carry out the web camera power control method that prevents that camera function is stolen of the present invention; First pin 211 and second pin 212 are two GPIO pins of embedded controller 21.
Control module 210 has two kinds of control modes of software/hardware for on-off circuit 22, a kind of be utilize storer 213 software program gauge tap circuit 22 power supply whether, another kind is to be used to judge whether to make on-off circuit 22 power supplies to give web camera 3 from the hardware setting that connects switch module 23.
Aspect hardware controls, utilize the switching of switch module 23 at a conducting (ON) state or a not conducting (OFF) state, that is, control the high/low voltage level of second pin 212, and by the high/low voltage level notice control module 210 of second pin 212, make control module 210 use for on-off circuit 22 by the control signal of first pin, 211 output conducting/not conductings according to the conducting state or the not on-state of switch module 23.
Consult Fig. 2 and Fig. 4, the stolen web camera power control method of camera function that prevents of the present invention is carried out by computer installation 1, and this method comprises the steps: that embedded controller 21 exports a control signal according to the conducting/not on-state of switch module 23 and give on-off circuit 22 (step 401), then, the control signal of on-off circuit 22 not conductings of foundation not out-put supply Vcc is given web camera 3 (step 402), perhaps, on-off circuit 22 is given web camera 3 (step 403) according to the control signal of conducting with out-put supply Vcc.
Consult Fig. 5, in second preferred embodiment of the present invention, the assembly that computer installation 1 ' has comprises that the effect of central processing unit 10 ', BIOS module 11 ', power supply unit 12 ', peripheral control circuit 13 ', USB transmission interface 14 ', keyboard 15 ', embedded controller 21 ', on-off circuit 22 ', web camera 3 ' and each assembly and annexation roughly as Fig. 2, do not repeat to give unnecessary details.
What be different from first preferred embodiment is that computer installation 1 ' also has a display 16, and 21 ' need of embedded controller, one GPIO pin 212 ', and on-off circuit 22 ' is to accept manual switchover so that output/out-put supply Vcc gives web camera 3; By this, embedded controller 21 ' can detect the power Vcc supply status of web camera 3 and export one and supply the status signal of display 16 demonstrations of computer installation 1 ' by GPIO pin 211 '.
The power control method of second preferred embodiment is to carry out at computer installation 1 ', this method comprises the steps: at first, the power supply supply status of the on-off circuit 22 ' of embedded controller 21 ' bridge detection between power Vcc and web camera 3, then, embedded controller 21 ' supplies the status signal of display 16 demonstrations of computer installation 1 ' according to the power Vcc supply status output one of web camera 3, makes the user can directly learn the power Vcc supply status of web camera 3 in display 16.
In sum, the present invention prevents that the computer installation that camera function is stolen and the effect of web camera power control method are:
1. utilizing embedded controller 21 is power supply supplies of the characteristic of closed system and the on-off circuit Control Network video camera 3 of arranging in pairs or groups, therefore can effectively block extraneous malicious intrusions and crack.
2. utilize embedded controller 21 to detect the power Vcc supply status of web cameras 3 and show, the power Vcc supply status that the user can be known learn web camera 3 at the display 16 of computer installation 1 '.
3. utilize the GPIO pin and the on-off circuit 22,22 ' of embedded controller 21, the increase of cost is limited, but the user can be provided simple and safe environment for use, so can reach purpose of the present invention really.
The above-described content of thought, it only is preferred embodiment of the present invention, can not limit scope of the invention process with this, promptly every simple equivalent variations and modification of being done according to claims scope of the present invention and invention description content all still belongs in the scope that patent of the present invention contains.
Claims (7)
1. computer installation that prevents that camera function is stolen, described computer installation connect also to be supplied a power supply and gives a web camera, and described computer installation comprises:
One embedded controller has a control module and one first pin, and on behalf of the control signal of conducting/not conducting, described control module give described first pin in order to export one; And
One on-off circuit connects described power supply and bridges between described first pin and the described web camera, according to the control signal of the conducting/not conducting of described first pin export/not export described power supply to described web camera.
2. the computer installation that prevents that camera function is stolen according to claim 1, also be included in the switch module that a conducting state and a not on-state are switched, described embedded controller also comprises one second pin, and described switch module electrically connects described second pin so that described control module is exported the control signal of described conducting/not conducting.
3. the computer installation that prevents that camera function is stolen according to claim 1, wherein, described embedded controller is an embedded keyboard controller.
4. computer installation that prevents that camera function is stolen, described computer installation connect also to be supplied a power supply and gives a web camera, and described computer installation comprises:
One embedded controller has a pin; And
One on-off circuit connects described power supply and bridges between described first pin and the described web camera, in order to accept to switch export/not export described power supply to described web camera;
By this, the control module of described embedded controller detects the power supply supply status of described web camera by described pin and exports a status signal for described computer installation demonstration.
5. a web camera power control method that prevents that camera function is stolen is to carry out at a computer installation with an embedded controller and a web camera, and described method comprises the steps:
(a) described embedded controller output one represents the control signal of conducting/not conducting to an on-off circuit that bridges between a power supply and the described web camera; And
(b) described on-off circuit is not given described web camera according to the control signal of described conducting/not conducting export/not export described power supply.
6. the web camera power control method that prevents that camera function is stolen according to claim 5, wherein, described embedded controller is a conducting state or the not on-state according to a switch module, exports the control signal of described conducting/not conducting and gives described on-off circuit.
7. a web camera power control method that prevents that camera function is stolen is to carry out at a computer installation with an embedded controller and a web camera, and described method comprises the steps:
(a) described embedded controller detection one bridges at the power supply supply status of the on-off circuit between a power supply and the described web camera; And
(b) described embedded controller supplies the status signal of described computer installation demonstration according to the power supply supply status output one of described web camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910157997.0A CN101964038B (en) | 2009-07-21 | 2009-07-21 | Prevent the stolen computer installation of camera function and camera power supply control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910157997.0A CN101964038B (en) | 2009-07-21 | 2009-07-21 | Prevent the stolen computer installation of camera function and camera power supply control method |
Publications (2)
| Publication Number | Publication Date |
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| CN101964038A true CN101964038A (en) | 2011-02-02 |
| CN101964038B CN101964038B (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910157997.0A Active CN101964038B (en) | 2009-07-21 | 2009-07-21 | Prevent the stolen computer installation of camera function and camera power supply control method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107040544A (en) * | 2017-05-15 | 2017-08-11 | 上海斐讯数据通信技术有限公司 | A kind of intrusion detection method based on flow, apparatus and system |
| GB2573373A (en) * | 2018-02-18 | 2019-11-06 | Esc Digital Media Ltd | Interactive mirror |
| US11481018B2 (en) | 2018-06-28 | 2022-10-25 | Hewlett-Packard Development Company, L.P. | Method for webcam privacy protection implementation |
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| US20060119595A1 (en) * | 2004-12-03 | 2006-06-08 | Wei-Yi Hsuan | Computer system of combining user interface and a display device |
| US20070063977A1 (en) * | 2005-09-19 | 2007-03-22 | Life-On Technology Corporation | Keyboard with a camera |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100472402C (en) * | 2005-01-18 | 2009-03-25 | 联想(北京)有限公司 | Power management method for built-in camera |
| CN1991660A (en) * | 2005-12-30 | 2007-07-04 | 联想(北京)有限公司 | Switch unit for integration apparatus of data processing equipment |
| CN101261535A (en) * | 2008-04-14 | 2008-09-10 | 华硕电脑股份有限公司 | Computer possessing energy supply controlled camera and camera energy supply control method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20060119595A1 (en) * | 2004-12-03 | 2006-06-08 | Wei-Yi Hsuan | Computer system of combining user interface and a display device |
| US20070063977A1 (en) * | 2005-09-19 | 2007-03-22 | Life-On Technology Corporation | Keyboard with a camera |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107040544A (en) * | 2017-05-15 | 2017-08-11 | 上海斐讯数据通信技术有限公司 | A kind of intrusion detection method based on flow, apparatus and system |
| CN107040544B (en) * | 2017-05-15 | 2020-10-16 | 北京国科环宇科技股份有限公司 | Intrusion detection method, device and system based on flow |
| GB2573373A (en) * | 2018-02-18 | 2019-11-06 | Esc Digital Media Ltd | Interactive mirror |
| US11481018B2 (en) | 2018-06-28 | 2022-10-25 | Hewlett-Packard Development Company, L.P. | Method for webcam privacy protection implementation |
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| CN101964038B (en) | 2016-11-23 |
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