CN102722953A - Computer antitheft system based on bluetooth technology - Google Patents
Computer antitheft system based on bluetooth technology Download PDFInfo
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- CN102722953A CN102722953A CN2011104452945A CN201110445294A CN102722953A CN 102722953 A CN102722953 A CN 102722953A CN 2011104452945 A CN2011104452945 A CN 2011104452945A CN 201110445294 A CN201110445294 A CN 201110445294A CN 102722953 A CN102722953 A CN 102722953A
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Abstract
The invention relates to a computer antitheft system based on a bluetooth technology. The system comprises a bluetooth signal generation portion and a bluetooth signal receiving portion. The bluetooth signal generation portion comprises a signal generation power supply module, a signal generation module and a 555timer module. The bluetooth signal receiving portion comprises a signal receiving power supply module, a signal receiving module, a microcontroller module and an alarm module. The signal receiving module and the alarm module are connected on the microcontroller module. The bluetooth signal generation portion is carried by a user and emits a bluetooth detection signal to a signal receiver. The bluetooth signal receiving portion is integrated into a computer. According to the invention, the bluetooth technology is applied in computer antitheft and the bluetooth technology is used to detect whether the protected computer is in a safe range. When the protected computer is stolen, the bluetooth receiver detects that the computer is out of the safe range and an alarm is started so as to achieve computer antitheft effect.
Description
Technical field
The present invention relates to a kind of computer antitheft system, particularly relate to a kind of computer antitheft system based on Bluetooth technology.
Background technology
In daily life, notebook computer have be easy to carry, easy to use, characteristics such as cost an arm and a leg.Computer is stolen or lose personal property is suffered a loss, and personal information or privacy are revealed, and causes inconvenience to own with other people.Analyze computer antitheft system in the market, they exist own vol big, be subject to external interference, be prone to many defectives such as stolen.
Summary of the invention
To the problems referred to above, fundamental purpose of the present invention is to provide a kind of Bluetooth technology is applied to computer antitheft, has utilized Bluetooth technology to detect protected computer whether in safe range.When protected computer was stolen, Bluetooth Receiver detected computer and exceeds safe range, started alarm equipment alarm, thereby played the computer antitheft system based on Bluetooth technology of computer antitheft effect.
The present invention solves above-mentioned technical matters through following technical proposals: a kind of computer antitheft system based on Bluetooth technology; Said computer antitheft system comprises that part and Bluetooth signal receiving unit take place Bluetooth signal; Part takes place and comprises signal generation power module, signal generating module, 555 timer module in said Bluetooth signal; Said signal generating module is connected with 555 timer module, and both are through the energising of signal generation power module; The Bluetooth signal receiving unit comprises that signal receives power module, signal receiving module, micro controller module and alarm module; Said signal receiving module and alarm module all are connected on the micro controller module; Said signal receiving module, micro controller module and alarm module all receive the power module power supply through signal; Part takes place and is carried by the user in said Bluetooth signal, and it is to signal receiver emission bluetooth detection signal, and said Bluetooth signal receiving unit is integrated into computer inside.
In practical implementation example of the present invention; Said signal generation power module comprises lithium battery, charging circuit and filter circuit of pressure-stabilizing, for signal generating module provides 3.3V WV, when the circumscribed USB power supply; To the power supply of Bluetooth signal generating module, simultaneously lithium battery is charged; When no external power supply, the Bluetooth signal generating module is supplied power by lithium battery.
In practical implementation example of the present invention, said micro controller module is AT89C2051.
In practical implementation example of the present invention, said alarm module is made up of hummer and two complex pipes, and the pwm signal that microcontroller AT89C2051 produces makes complex pipe alternately all be in amplification, hold mode, drives hummer, realizes warning function.
In practical implementation example of the present invention; The course of work of said computer antitheft system is following: use the C language that system is carried out software design; Whether system reports to the police by microprocessor decision, when user computer and signal generator apart from when 10m is above, signal receiving module does not receive the bluetooth monitor signal or the Bluetooth signal that receives is not the signal of user own; This moment, bluetooth connected disconnection, and microprocessor enables actuation of an alarm.
Positive progressive effect of the present invention is: the computer antitheft system based on Bluetooth technology provided by the invention has the following advantages: the present invention applies to computer antitheft with Bluetooth technology, has utilized Bluetooth technology to detect protected computer whether in safe range.When protected computer was stolen, Bluetooth Receiver detected computer and exceeds safe range, started alarm equipment alarm, thereby played the effect of computer antitheft.The chip of the computer safety-protection system based on Bluetooth technology provided by the invention and resistance capacitance all adopt SMD, and volume is little, is easy to carry about with one; Adopt pulse signal, low in energy consumption; System is applied widely, and the required expense of this system is low, within general user's economic tolerance range.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present invention.
Fig. 2 is the structural representation of timer trigger signal generator of the present invention.
Fig. 3 is the power supply synoptic diagram of signal generation power module of the present invention.
Fig. 4 is the work synoptic diagram of Bluetooth transmission module of the present invention.
Fig. 5 is the work synoptic diagram of bluetooth receiver module of the present invention.
Fig. 6 is the work synoptic diagram of microprocessor module of the present invention.
Fig. 7 is the work synoptic diagram of alarm module of the present invention.
Fig. 8 is the work synoptic diagram of receiver module power supply of the present invention.
Fig. 9 is a programming flowchart of the present invention.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to specify technical scheme of the present invention.
Fig. 1 is an one-piece construction synoptic diagram of the present invention; As shown in Figure 1: as to the present invention includes Bluetooth signal part and Bluetooth signal receiving unit take place; Part takes place and comprises signal generation power module, signal generating module, 555 timer module in this Bluetooth signal; Said signal generating module is connected with 555 timer module, and both are through the energising of signal generation power module; The Bluetooth signal receiving unit comprises that signal receives power module, signal receiving module, micro controller module and alarm module; Said signal receiving module and alarm module all are connected on the micro controller module; Said signal receiving module, micro controller module and alarm module all receive the power module power supply through signal; Part takes place and is carried by the user in said Bluetooth signal, and it is to signal receiver emission bluetooth detection signal, and said Bluetooth signal receiving unit is integrated into computer inside.
Fig. 2 is the structural representation of timer trigger signal generator of the present invention, and is as shown in Figure 2: 555 timer module among the figure are medium-scale integration devices that a kind of analog-and digital-function combines.The supply voltage wide ranges of 555 timers can be in 4.5V～16V work, dependable performance.Only need external several resistance, electric capacity, just can realize that multivibrator, monostalbe trigger and Schmidt trigger isopulse produce and translation circuit.
The principle of work of 555 timers is following: when input signal from 1 pin input and when surpassing 2VCC/3, trigger reset, output terminal 3 pin output low levels, discharge simultaneously, switching tube conducting; When input signal from 2 pin inputs and when being lower than VCC/3, trigger set, 3 pin output high level, discharge simultaneously, switching tube ends.
Fig. 3 is the power supply synoptic diagram of signal generation power module of the present invention, and is as shown in Figure 3: signal generation power module comprises lithium battery, charging circuit and filter circuit of pressure-stabilizing, for the Bluetooth signal generating module provides 3.3V WV.The 5V voltage of computer USB interface can be easily to lithium cell charging, and anti-super-charge super-discharge circuit can be operated in optimum condition by lithium battery.When the circumscribed USB power supply, to the power supply of Bluetooth signal generating module, simultaneously lithium battery is charged by it; When no external power supply, the Bluetooth signal generating module is supplied power by lithium battery.Select LDO (low pressure difference linear voltage regulator) the chip SPX1117-3.3 of Sipex company for use, with output voltage stabilization at 3.3V.
Fig. 4 is the work synoptic diagram of Bluetooth transmission module of the present invention, and is as shown in Figure 4: the Bluetooth signal transceiver module all adopts a GC-02 bluetooth module of being produced by Nanjing state spring Electric Appliance Equipment Co., Ltd.GC-02 is the bluetooth digital transmission module that adopts the design of the CSR Audio Flash of company Bluetooth chip to produce, and adopts the laser blind hole processing technology, SMD design, and volume size is compact, the most suitable industrial data, voice transfer.Be mainly used in blue tooth voice transmission, on-vehicle Bluetooth, blue tooth voice gateway etc.When the Bluetooth transmission module powers on, then set up with the bluetooth receiver module automatically and communicate by letter.
After GC-02 detected Bluetooth signal and connects, the PI03 end can be exported high level, otherwise is low level.This signal inserts microprocessor AT89C2051, in order to judge whether to set up link.The bluetooth receiver module is as shown in Figure 5.
The work synoptic diagram of Fig. 6 microprocessor module of the present invention.Microprocessor module is to be the minimum system of core with AT89C2051, comprises parts such as electrification reset, crystal oscillation.As shown in Figure 6, when signal receiving module detects the high-low level variation of P1.2 mouth, represent that promptly computer is stolen.Microprocessor uses timer to produce pwm signal, drives the alarm module of P3.7 mouth, accomplishes actuation of an alarm.
Fig. 7 is the work synoptic diagram of alarm module of the present invention.As shown in Figure 7, alarm module is made up of hummer and two complex pipes, makes circuit have two states.The pwm signal that microcontroller AT89C2051 produces makes complex pipe alternately all be in amplification, hold mode, can well drive hummer, realizes warning function.
Fig. 8 is the work synoptic diagram of receiver module power supply of the present invention, and is as shown in Figure 8, and the Bluetooth signal receiving unit can be incorporated into computer inside because volume is less.Selecting the SP6641B-5.0 chip of Sipex company for use, the supply voltage of lithium battery is risen to 5V, is the power supply of microcontroller and alarm module.Simultaneously, can select for use the 5V voltage of USB interface easily lithium battery to be charged.
Fig. 9 is programming flowchart of the present invention, and is as shown in Figure 9, uses the C language that system is carried out software design, and whether system reports to the police is mainly determined by microprocessor.When user computer and signal generator distance when 10m is above, signal receiving module does not receive the bluetooth monitor signal or the Bluetooth signal that receives is not the signal of user own, bluetooth connected and broke off this moment, microprocessor enables actuation of an alarm.In a single day actuation of an alarm enables, must be by user's microprocessor that resets, and actuation of an alarm could be removed.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the instructions just explains principle of the present invention, and under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications; These variations and improvement all fall in the scope of the invention that requires protection, and the present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (5)
1. computer antitheft system based on Bluetooth technology; Said computer antitheft system comprises that part and Bluetooth signal receiving unit take place Bluetooth signal; It is characterized in that: part takes place and comprises signal generation power module, signal generating module, 555 timer module in said Bluetooth signal; Said signal generating module is connected with 555 timer module, and both are through the energising of signal generation power module; The Bluetooth signal receiving unit comprises that signal receives power module, signal receiving module, micro controller module and alarm module; Said signal receiving module and alarm module all are connected on the micro controller module; Said signal receiving module, micro controller module and alarm module all receive the power module power supply through signal; Part takes place and is carried by the user in said Bluetooth signal, and it is to signal receiver emission bluetooth detection signal, and said Bluetooth signal receiving unit is integrated into computer inside.
2. the computer antitheft system based on Bluetooth technology according to claim 1; It is characterized in that: said signal generation power module comprises lithium battery, charging circuit and filter circuit of pressure-stabilizing; For signal generating module provides 3.3V WV; When the circumscribed USB power supply,, simultaneously lithium battery is charged to the power supply of Bluetooth signal generating module; When no external power supply, the Bluetooth signal generating module is supplied power by lithium battery.
3. the computer antitheft system based on Bluetooth technology according to claim 1 is characterized in that: said micro controller module is AT89C2051.
4. the computer antitheft system based on Bluetooth technology according to claim 1; It is characterized in that: said alarm module is made up of hummer and two complex pipes; The pwm signal that microcontroller AT89C2051 produces makes complex pipe alternately all be in amplification, hold mode; Drive hummer, realize warning function.
5. the computer antitheft system based on Bluetooth technology according to claim 1; It is characterized in that: the course of work of said computer antitheft system is following: use the C language that system is carried out software design; Whether system reports to the police by microprocessor decision, when user computer and signal generator apart from when 10m is above, signal receiving module does not receive the bluetooth monitor signal or the Bluetooth signal that receives is not the signal of user own; This moment, bluetooth connected disconnection, and microprocessor enables actuation of an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011104452945A CN102722953A (en) | 2011-12-27 | 2011-12-27 | Computer antitheft system based on bluetooth technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104452945A CN102722953A (en) | 2011-12-27 | 2011-12-27 | Computer antitheft system based on bluetooth technology |
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| CN102722953A true CN102722953A (en) | 2012-10-10 |
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| CN2011104452945A Pending CN102722953A (en) | 2011-12-27 | 2011-12-27 | Computer antitheft system based on bluetooth technology |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903198A (en) * | 2012-10-16 | 2013-01-30 | 福建慧翰微电子有限公司 | Anti-lost device and anti-lost method applying same |
| WO2016082612A1 (en) * | 2014-11-28 | 2016-06-02 | 广州亿航智能技术有限公司 | Bluetooth communication box and data communication method |
| CN106205005A (en) * | 2016-08-29 | 2016-12-07 | 青岛歌尔声学科技有限公司 | A kind of method for early warning and a kind of prior-warning device |
| WO2017101685A1 (en) * | 2015-12-15 | 2017-06-22 | 广州亿航智能技术有限公司 | Wireless communication device |
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| CN201060520Y (en) * | 2007-03-23 | 2008-05-14 | 桂盟企业股份有限公司 | Bluetooth warning device |
| CN202434010U (en) * | 2011-12-27 | 2012-09-12 | 上海纳杰电气成套有限公司 | Computer theft-preventing system based on Bluetooth technology |
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2011
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| CN201060520Y (en) * | 2007-03-23 | 2008-05-14 | 桂盟企业股份有限公司 | Bluetooth warning device |
| CN202434010U (en) * | 2011-12-27 | 2012-09-12 | 上海纳杰电气成套有限公司 | Computer theft-preventing system based on Bluetooth technology |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903198A (en) * | 2012-10-16 | 2013-01-30 | 福建慧翰微电子有限公司 | Anti-lost device and anti-lost method applying same |
| WO2016082612A1 (en) * | 2014-11-28 | 2016-06-02 | 广州亿航智能技术有限公司 | Bluetooth communication box and data communication method |
| WO2017101685A1 (en) * | 2015-12-15 | 2017-06-22 | 广州亿航智能技术有限公司 | Wireless communication device |
| CN106205005A (en) * | 2016-08-29 | 2016-12-07 | 青岛歌尔声学科技有限公司 | A kind of method for early warning and a kind of prior-warning device |
| CN106205005B (en) * | 2016-08-29 | 2018-11-27 | 青岛歌尔声学科技有限公司 | A kind of method for early warning and a kind of prior-warning device |
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Application publication date: 20121010 |