CN101968843A - Computer operation locking device - Google Patents
Computer operation locking device Download PDFInfo
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- CN101968843A CN101968843A CN2010102912189A CN201010291218A CN101968843A CN 101968843 A CN101968843 A CN 101968843A CN 2010102912189 A CN2010102912189 A CN 2010102912189A CN 201010291218 A CN201010291218 A CN 201010291218A CN 101968843 A CN101968843 A CN 101968843A
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- main body
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- pci bus
- locking device
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Abstract
The invention discloses a computer operation locking device which comprises a short-distance wireless control module, a micro control unit (MCU) module and a PCI bus interface module, wherein the MCU module is connected with the short-distance wireless control module, and the PCI bus interface module is connected with the MCU module; and the short-distance wireless control module comprises a built-in main body connected with the MCU module and an external main body connected with the built-in main body. The computer operation locking device has the advantages of good defensive measure and high safety.
Description
Technical field
The present invention relates to the hardware safety protection field of stand-alone information, specifically a kind of computer run locking device based on short-distance wireless control and pci bus hardware interrupts.
Background technology
In recent years, computer and network technologies constantly develop, and the use of PC is more and more universal, and the information security issue of thereupon bringing is also spread unchecked all the more.Sum up according to investigation, do not consider network factors, the main cause that causes computer data to lose is: the people for steal and distort, Computer Electromagnetic Radiation, computer memory hardware damage etc.For stealing and distorting, counte-rplan are few in the market at the people, and more approved have start authentication and a file permission setting.
The start authentication is by identity and the rights of using of some information of having of input user with the authentication user, thereby reaches the method for isolating unidentified user.At present general and fairly simple scheme is to carry out fingerprint recognition or input start key before system start-up, meets the back computing machine and just can normally enter system, and distribute certain file modification authority for the user.Though but this scheme is simple, is cracked by DOS tool box or safe mode easily, security is not high.
The file permission setting comprises user right setting and the file encryption software that system carries.The user right setting that system carries is based on the start authentication, and the restriction of authentication is not high so security is started shooting.File encryption software changes original information data with certain special algorithm, even make undelegated user obtain the signal of having encrypted, but the method because of not knowing to decipher, still can't understand the content of information.Encryption is based upon to be carried out on the basis of mathematics Code And Decode information, and there is the danger that is broken in key, so the security of encryption software is not high yet.
Summary of the invention
Goal of the invention: at the problem and shortage that above-mentioned prior art exists, the purpose of this invention is to provide a kind of is safe, the computer run locking device of stealing with altered data that safety prevention measure is good at the people.
Technical scheme: for achieving the above object, technical scheme of the present invention is a kind of computer run locking device, comprise the short-distance wireless control module, (MCU (MicroControl Unit) Chinese is a micro-control unit to the MCU module that links to each other with the short-distance wireless control module, claim one chip microcomputer (Single ChipMicrocomputer) or single-chip microcomputer again, be meant appearance and development thereof along with large scale integrated circuit, CPU with computing machine, RAM, ROM, timer conter and multiple I/O interface are integrated on a slice chip, form the computing machine of chip-scale, make the common memory device of various combination control for different application scenarios) and the pci bus interface module that links to each other with the MCU module, wherein the short-distance wireless control module comprises main body in the machine that links to each other with the MCU module and the machine that links to each other with main body in machine main body outward.
Main body is continuous by level transferring chip MAX232 (the MAX232 chip is that U.S. letter company is the single supply level transferring chip of the rs-232 standard serial ports design of computer, use+5v single power supply specially) in described MCU module and the machine.
Main body comprises the serial ports Bluetooth adapter that joins with level transferring chip MAX232 in the described body.
Described external main body comprise with body in the suitable validated user mobile phone of main body and with body in the not suitable disabled user's mobile phone of main body.
Described pci bus interface module comprises pci bus common interface chip that joins with the MCU module and the pci bus slot that joins with it.
Beneficial effect: defensive measure of the present invention is good, safe.
Description of drawings
Fig. 1 is an one-piece construction block diagram of the present invention;
Fig. 2 constitutes block diagram for actual hardware of the present invention;
Fig. 3 is the Single Chip Microcomputer (SCM) program process flow diagram;
Fig. 4 is the level transferring chip circuit theory diagrams;
Fig. 5 is CH365 and PCI slot circuit theory diagrams;
Fig. 6 is 51 single chip circuit schematic diagrams.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment only is used to the present invention is described and is not used in and limit the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
As depicted in figs. 1 and 2, a kind of computer run locking device, comprise short-distance wireless control module 1, short-distance wireless control module 1 comprises main body 4 and the coupled outer main body 5 of machine in the machine, main body 4 comprises the serial ports Bluetooth adapter that joins with level transferring chip MAX232 in the body, external main body 5 comprise with body in the suitable validated user mobile phone of main body 4 and with body in the not suitable disabled user's mobile phone of main body 4.Be connected to level transferring chip MAX232 on the main body 4 in vivo, on level transferring chip MAX232, be connected to MCU module 2, be connected to pci bus interface module 3 on MCU module 2, pci bus interface module 3 comprises pci bus common interface chip that joins with MCU module 2 and the pci bus slot that joins with it.
The short-distance wireless control module is responsible for monitoring the state of validated user, and we realize with the bluetooth identity recognizing technology in the present invention, also can use realizations such as radio-frequency card technology or Infrared Ray Remote Control Technology.Be divided into main body and carrier, wherein main body sends the signal of search vector bluetooth and provides status signal according to return message for MCU by some cycles at cabinet inside; Carrier carries user's information, is bluetooth equipment integrated in the user mobile phone in the present invention, and carrier provides the basis for estimation of return message as main body after the search signal that receives the main body transmission.The bluetooth serial ports adapter matches with Bluetooth of mobile phone and is connected, and the link management of Bluetooth system is responsible for connecting, setting up and remove link and carry out security control.According to Bluetooth specification, bluetooth main equipment (being Bluetooth adapter) adopts " heartbeat " technology that user profile carrier (being Bluetooth of mobile phone) is carried out monitoring management, main body sends search information to carrier every some cycles, if this carrier receives search information and provides response, then the main body Bluetooth adapter is judged link establishment automatically, and return the status signal that connects foundation and give MCU, if this carrier does not have response within a certain period of time, the main body Bluetooth adapter judges that automatically link disconnects, and returns the status signal that connects disconnection and give MCU.Realize real-time, monitoring automatically thus.
Because bluetooth communication function that most of mobile phone is all integrated in the market, and consider that the Bluetooth of mobile phone address all is unique, has identifiability with Bluetooth of mobile phone as the user profile carrier, so we no longer are equipped with other Bluetooth signal carrier, but the legal operator's that uses a computer Bluetooth of mobile phone provides user's identity information as vehicle equipment.
The serial ports Bluetooth adapter of terminal is as main equipment, and the meeting active searching has been remembered the bluetooth equipment of pairing and matched so that subscriber identity information to be provided.The serial ports Bluetooth adapter is made of bluetooth core module and base plate.Adopt the BlueCore4-External Bluetooth chip of CSR (Cambridge Silicon Radio) company based on the BCO4 bluetooth core module of Class 2, the data of following Bluetooth system fully are connected with audio frequency.Adopt the UART host device interface, the data rate of the highest support 3Mbps.The complete compatible bluetooth standard of module and equipment firmware V2.0.The bluetooth module of integrated base plate can pass through RS232 serial ports and single chip communication, and for single-chip microcomputer provides status information, finishes the authentication process.
Consider that the metal cabinet has shielding action, for the main body of bluetooth module can be communicated by letter better with carrier, suggestion external antenna on the bluetooth core module can be moved the external transmitting-receiving feed signals of cabinet to.
The pci bus interface module mainly is responsible for the status signal that MCU sends is converted into the pci bus protocol with hardware interrupt request singal that meets complexity, thereby and constantly send hardware interrupts by pci bus equipment and reach and take the purpose that CPU pins computing machine to computing machine, need use the pci bus common interface chip for simplified design and be acp chip, such as PCI9052 or CH365, we have used CH365 in these works.
To pin computing machine be because pci bus allows to realize that interrupting sharing promptly all pci cards all shares same interruption on pci bus thereby the high frequency hardware interrupts request that pci bus sends why can high number percent takies CPU.Video card in the market all is the pci card form, be inserted in the computer PCI express draw-in groove, and CPU is that the interrupt number that video card distributes is 16, is in high priority, includes the responder to the video card interrupt request during video card drives.Interrupt instructing method according to PCI, insert any one new equipment in the PCI slot, windows interrupts for No. 16 for automatically this devices allocation.Equipment sends the interrupt request of simulation video card, and CPU judges that according to interrupt number the interrupt response program that jumps to video card is carried out.Because the high priority that video card interrupts takies CPU thereby the hardware interrupts request of pci bus can both obtain the response of CPU; Video card drives and is existing part in the computing machine, and equipment does not need to make complicated driving again, only needs simple recognition of devices to drive the hidden danger of having avoided software section to bring.
The present invention only uses the local interrupt function of common interface chip CH365, and according to its configuration requirement, data line D3 should be equipped with 4K7 resistance and pull down to ground.Other signal wires such as address wire and IOP, MEM_wr line etc. can unsettledly not connect.Because CH365 belongs to high frequency chip, should consider the digital signal impedance matching.Should add power supply simultaneously and move back the filtering in addition of even electric capacity between VCC and GND, the stabilized power source signal avoids interference.
As shown in Figure 3, the MCU processing module is responsible for providing the pattern of setting and mode of operation, also can select other singlechip chips according to different request for utilizations by 51 single-chip microcomputers simply and easily as acp chip in these works.When maybe needing to change validated user information before using first, the user needs at first to select to be provided with pattern, and open Bluetooth of mobile phone nearby at computing machine, the new user's bluetooth information around the inquiry of MCU control computer terminal serial ports Bluetooth adapter is also stored and is matched; After setting is finished, in mode of operation, according to user's Bluetooth address of storing pairing, MCU control Bluetooth adapter is pressed the bluetooth carrier of some cycles search validated user, and the connection status signal that returns according to the short-distance wireless control module, to pci bus interface transmit status signal.
As shown in Figure 4, MAX232 is a chip that CMOS level standard and serial ports level standard are changed.What realize in native system is single-chip microcomputer and being connected of serial ports Bluetooth adapter, and is the power supply of serial ports Bluetooth adapter by the Vcc pin and the GND pin of serial ports 232 by single-chip microcomputer.
As shown in Figure 5, CH365 is a PCI agreement common interface chip, supports the effective interrupt request of low level, if data line D3 connects pull down resistor, then Working mode set is for enabling interrupt function, and the SYS_EX pin multiplexing is INT_REQ, as local interrupt request input pin.After the INT_REQ pin detected low level, the interrupt enable mode bit of CH365 (being the position 2 of chip controls register) was set to 1 automatically, and CH365 interrupts to the pci bus application by the PCI_INTA pin.Even this moment, the INT_REQ pin reverted to high level again, CH365 still remains on the interrupt enable state, and up to the CH365 of PC interrupt service routine the interrupt enable mode bit of CH365 being removed is 0.But if the INT_REQ pin still detects low level after removing the interrupt enable mode bit, then CH365 enters the interrupt enable state once more.If the PC program is set to 1 with the interrupt enable mode bit of software mode CH365, also can makes CH365 enter the interrupt enable state, thereby interrupt to the pci bus application.Such software interruption has identical characteristic with the hardware interrupts that is caused by exterior I NT_REQ low level, can be used to test the interrupt function of CH365.CH365 can effectively support local hardware to interrupt, and can realize the local interrupt request of controllability by simple configuration, has simplified our performance history greatly.
As shown in Figure 6,51 single-chip microcomputers are the control core of system, follow serial communication by the MAX232 chip, the P3.0 pin of single-chip microcomputer is that Serial Port Information sends pin, the P3.1 pin is that Serial Port Information receives pin, at any time check for convenient whether the communication between single-chip microcomputer and the serial ports is normally carried out, we are connected to pilot lamp on transmission pin and reception pin, and the meeting of the pilot lamp of correspondence is glittering when information sends and receive.
When the present invention uses, be provided with under the state, legal new user opens Bluetooth of mobile phone near computing machine, based on the bluetooth information around the computer hardware safety protection module meeting active searching of PCI device interrupt, and proposition connects the request of setting up, the cellphone subscriber imports correct PIN code pairing afterwards and connects foundation, and the bluetooth information that the computer terminal Bluetooth adapter has matched in the automatic storage in the back that connects is for work shape body provides carrier bluetooth information.
In working order, after validated user carries Bluetooth of mobile phone and leaves about 5 meters in computing machine or initiatively close bluetooth in 1 minute CPU usage reach 100% (measuring the hardware interrupts CPU usage more than 65%) by processexplorer1204, computing machine is stuck fully; After validated user was walked close to computing machine and opened Bluetooth of mobile phone, computing machine recovered operate as normal in the 15S.Even computer card is after death restarted behind the forced shutdown, it is stuck at the interface also can be forced to rest on start, because computing machine has begun to be the power supply of PCI integrated circuit board before normally entering the windows system, PCI integrated circuit board power supply back constantly sends the request of high frequency hardware interrupts, make computing machine can't normally start the windows system that enters, up to the pairing the bluetooth carrier searched to and connect.
Claims (5)
1. computer run locking device, it is characterized in that: this device comprises short-distance wireless control module (1), the MCU module (2) that links to each other with short-distance wireless control module (1) and the pci bus interface module (3) that links to each other with MCU module (2), and wherein short-distance wireless control module (1) comprises main body (4) in the machine that links to each other with MCU module (3) and the machine that links to each other with main body (4) in machine main body (5) outward.
2. according to the described a kind of computer run locking device of claim 1, it is characterized in that: described MCU module (2) links to each other by level transferring chip MAX232 with the interior main body (4) of machine.
3. according to claim 1 or 2 described a kind of computer run locking devices, it is characterized in that: main body (4) comprises the serial ports Bluetooth adapter that joins with level transferring chip MAX232 in the described body.
4. according to the described a kind of computer run locking device of claim 1, it is characterized in that: described external main body (5) comprise with body in the suitable validated user mobile phone of main body (4) and with body in the not suitable disabled user's mobile phone of main body (4).
5. according to the described a kind of computer run locking device of claim 1, it is characterized in that: described pci bus interface module (3) comprises pci bus common interface chip that joins with MCU module (2) and the pci bus slot that joins with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102912189A CN101968843A (en) | 2010-09-21 | 2010-09-21 | Computer operation locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102912189A CN101968843A (en) | 2010-09-21 | 2010-09-21 | Computer operation locking device |
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|---|---|
| CN101968843A true CN101968843A (en) | 2011-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102912189A Pending CN101968843A (en) | 2010-09-21 | 2010-09-21 | Computer operation locking device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136048A (en) * | 2011-03-28 | 2011-07-27 | 东南大学 | Mobile phone Bluetooth-based ambient intelligent computer protection device and method |
| CN102736995A (en) * | 2011-04-14 | 2012-10-17 | 中国移动通信集团广东有限公司 | Electronic equipment and control method for USB communication module of electronics equipment |
| CN105228097A (en) * | 2015-11-05 | 2016-01-06 | 中国电子科技集团公司第四十一研究所 | A kind of indoor wireless remote controlling method being applied to signal source |
| CN109246703A (en) * | 2017-05-24 | 2019-01-18 | 系微股份有限公司 | Controlled device and safety management method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2645132Y (en) * | 2003-08-27 | 2004-09-29 | 玴荣科技股份有限公司 | Computer automatic protection device |
| CN1680960A (en) * | 2004-04-09 | 2005-10-12 | 余羡鸣 | Medical palm computer |
| CN101201881A (en) * | 2006-12-14 | 2008-06-18 | 纬创资通股份有限公司 | Apparatus and method for managing and controlling computer system host as well as computer system thereof |
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2010
- 2010-09-21 CN CN2010102912189A patent/CN101968843A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2645132Y (en) * | 2003-08-27 | 2004-09-29 | 玴荣科技股份有限公司 | Computer automatic protection device |
| CN1680960A (en) * | 2004-04-09 | 2005-10-12 | 余羡鸣 | Medical palm computer |
| CN101201881A (en) * | 2006-12-14 | 2008-06-18 | 纬创资通股份有限公司 | Apparatus and method for managing and controlling computer system host as well as computer system thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136048A (en) * | 2011-03-28 | 2011-07-27 | 东南大学 | Mobile phone Bluetooth-based ambient intelligent computer protection device and method |
| CN102136048B (en) * | 2011-03-28 | 2012-12-19 | 东南大学 | Mobile phone Bluetooth-based ambient intelligent computer protection device and method |
| CN102736995A (en) * | 2011-04-14 | 2012-10-17 | 中国移动通信集团广东有限公司 | Electronic equipment and control method for USB communication module of electronics equipment |
| CN102736995B (en) * | 2011-04-14 | 2015-04-01 | 中国移动通信集团广东有限公司 | Electronic equipment and control method for USB communication module of electronics equipment |
| CN105228097A (en) * | 2015-11-05 | 2016-01-06 | 中国电子科技集团公司第四十一研究所 | A kind of indoor wireless remote controlling method being applied to signal source |
| CN109246703A (en) * | 2017-05-24 | 2019-01-18 | 系微股份有限公司 | Controlled device and safety management method thereof |
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Application publication date: 20110209 |