CN102737168A - USB interface capable of preventing computer virus - Google Patents
USB interface capable of preventing computer virus Download PDFInfo
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- CN102737168A CN102737168A CN201010528789XA CN201010528789A CN102737168A CN 102737168 A CN102737168 A CN 102737168A CN 201010528789X A CN201010528789X A CN 201010528789XA CN 201010528789 A CN201010528789 A CN 201010528789A CN 102737168 A CN102737168 A CN 102737168A
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Abstract
The invention discloses a USB interface capable of preventing computer virus. The interface consists of a USB switch, a USB chip, a single-chip microcomputer, an LED, a power switch and a computer USB interface. The technical scheme is that: a computer interface is connected with the computer USB interface; the USB interface is connected with a USB flash disk; a data line of the USB switch is respectively connected with a data line of the computer interface, a data line of the USB chip and a data line of the USB interface; a control line of the single-chip microcomputer is respectively connected with the USB switch, the USB chip, the LED and the power switch; the USB switch, the USB chip, the single-chip microcomputer, the power switch and the computer interface share the same power supply; a power input of the USB interface is connected with a power output end of the power switch. The USB interface is simple in structure, small in size and convenient for carrying, and can be widely used for protecting computers from the damage of antorum.inf-type virus.
Description
Technical field
The present invention relates to a kind of USB interface that is used for anti-virus, belong to computing machine anti-virus equipment.
Background technology
The destruction that computer virus causes computer information system is very serious; Except trojan horse etc., the user may often receive the puzzlement of disk virus autorun.inf class; This virus is utilized the disk function activation operation of operation automatically, propagates through USB flash disk, portable hard drive, thereby also claims USB flash disk virus.The root directory that has suffered the USB flash disk of disk autorun.inf viroid can generate antorun.inf file and " xxx.exe " virus document (xxx is the virus name) of a hiding attribute down.Open autorun.inf, can see open=xxx.exe or shellexecute=xxx.exe.When double-clicking the xxx.exe Virus that drive just moves appointment automatically; In should virus show as usually, all disks under the system can't be opened, the right-click disk finds it should was that the instruction of " opening " has but become " playing automatically " originally.Even if the refitting system double-clicks other and do not format subregion, symptom still.This virus also can cause serious consequences such as computer run is slow, destruction data, and its harmfulness is huge.The way that generally adopts now is that legal antivirus software is installed, and constantly rise the machine virus killing, but this also is a kind of remedial measure, and viral in addition renewal speed generally all is higher than antivirus software.
Summary of the invention
For the operation of the viroid that prevents disk autorun.inf, to the havoc that computer information system causes, spy of the present invention provides a kind of U-disc virus prevention interface; It is made up of USB switch, USB chip, single-chip microcomputer, LED, power switch and computer interface and USB interface, it is characterized in that: computer interface 1 connects the computing machine USB interface; USB interface 7 connects USB flash disk; The data line of USB switch 2 is connected with the data line of computer interface 1, the data line of USB chip 3 and the data line of USB interface 7 respectively; The control line of single-chip microcomputer 4 is connected with USB switch 2, USB chip 3, LED 5 and power switch 6 respectively; The power supply of USB switch 2, USB chip 3, single-chip microcomputer 4, power switch 6 and computer interface l is same power supply; The power supply input of USB interface 7 is connected in the power output end of power switch 6.
The present invention has the following advantages: once, need not change the destruction that computing machine or USB flash disk structure can prevent effectively that virus from causing computer information system; Two, this interface structure is simple, volume is little, is easy to carry.
Description of drawings
Fig. 1 is the structural representation of the USB interface of anti-virus of the present invention.
Among the figure: 1--computer interface 2--USB switch 3--USB chip 4--single-chip microcomputer,
5--LED 6--power switch 7--USB interface.
Embodiment:
After computer interface 1 was inserted into the computing machine USB interface, single-chip microcomputer 4 began USB switch 2 and USB chip 3 are carried out initialization, and control power switch 6 is in closure state.USB switch 2 is connected the usb signal of USB chip 3 with the usb signal of USB interface 7; Whether single-chip microcomputer 4 is inquired about repeatedly has USB flash disk to insert USB interface 7; This moment, single-chip microcomputer 4 was master control systems; Computing machine also has neither part nor lot in control, only for system provides power supply, so just can prevent that USB flash disk virus from getting into computing machine before handling.
After single-chip microcomputer 4 has detected USB flash disk insertion USB interface 7, start USB flash disk file analysis program, whether USB flash disk root directory under have autorun.inf file, if find the autorun.inf file just its content to be emptied if searching.Single-chip microcomputer 4 control USB chips 3 quit work then, and control power switch 6 places off-state, and control USB switch 2 is connected the usb signal of computer interface 1 with the usb signal of USB interface 7, and single-chip microcomputer 4 with power switch 6 closures, restarts USB flash disk again.Single-chip microcomputer 4 gets into dormant state, and the control of USB flash disk is given back computing machine, and wherein LED 5 is used to indicate the duty of single-chip microcomputer 4, and LED5 lights during single-chip microcomputer 4 work, and LED 5 extinguishes after single-chip microcomputer 4 dormancy.Because the content of autorun.inf file is cleared, thus disk autorun.inf viroid because there is not the activation of disk AutoPlay function, so just die among USB flash disk, thereby play the function of anti-virus.When using U-disc virus prevention interface, only need computer interface 1 is inserted the computing machine USB interface, again USB flash disk is inserted USB interface 7 and get final product.
Claims (2)
1. a U-disc virus prevention interface is made up of USB switch, USB chip, single-chip microcomputer, LED, power switch and computer interface and USB interface, it is characterized in that: computer interface (1) connects computing machine USB interface (2); USB interface (7) connects USB flash disk; The data line of USB switch (2) connects the data line of computer interface (1): the data line of USB chip (3) connects the data line of USB interface (7); The control line of single-chip microcomputer (4) is connected with USB switch (2), USB chip (3), LED (5) and power switch (6) respectively; The power supply of USB switch (2), USB chip (3), single-chip microcomputer (4), power switch (6) and computer interface (1) is same power supply; The power supply input of USB interface (7) is connected in the power output end of power switch (6).
2. U-disc virus prevention interface; It is characterized in that, after single-chip microcomputer (4) has detected USB flash disk insertion USB interface (7), start USB flash disk file analysis program; Whether USB flash disk root directory under have autorun.inf file, if find the autorun.inf file just its content to be emptied if searching.Single-chip microcomputer (4) control USB chip (3) quits work then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010528789XA CN102737168A (en) | 2010-11-02 | 2010-11-02 | USB interface capable of preventing computer virus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010528789XA CN102737168A (en) | 2010-11-02 | 2010-11-02 | USB interface capable of preventing computer virus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102737168A true CN102737168A (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010528789XA Pending CN102737168A (en) | 2010-11-02 | 2010-11-02 | USB interface capable of preventing computer virus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102737168A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107423641A (en) * | 2017-09-19 | 2017-12-01 | 中国南方电网有限责任公司超高压输电公司南宁监控中心 | A kind of anti-virus method and anti-virus device for mobile memory medium |
-
2010
- 2010-11-02 CN CN201010528789XA patent/CN102737168A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107423641A (en) * | 2017-09-19 | 2017-12-01 | 中国南方电网有限责任公司超高压输电公司南宁监控中心 | A kind of anti-virus method and anti-virus device for mobile memory medium |
| CN107423641B (en) * | 2017-09-19 | 2023-10-03 | 中国南方电网有限责任公司超高压输电公司南宁监控中心 | Gas defense method and gas defense device for mobile storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Siyang Tianqin Software Technology Co., Ltd. Document name: Notification of Passing Preliminary Examination of the Application for Invention |
|
| DD01 | Delivery of document by public notice |
Addressee: Siyang Tianqin Software Technology Co., Ltd. Document name: Notification of Publication of the Application for Invention |
|
| DD01 | Delivery of document by public notice |
Addressee: Siyang Tianqin Software Technology Co., Ltd. Document name: Notification of before Expiration of Request of Examination as to Substance |
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| DD01 | Delivery of document by public notice |
Addressee: Zhou Ge Document name: Notification that Application Deemed to be Withdrawn |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121017 |