CN103729982B - A kind of implementation method of Multifunctional lose-preventing device - Google Patents
A kind of implementation method of Multifunctional lose-preventing device Download PDFInfo
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- CN103729982B CN103729982B CN201410009205.6A CN201410009205A CN103729982B CN 103729982 B CN103729982 B CN 103729982B CN 201410009205 A CN201410009205 A CN 201410009205A CN 103729982 B CN103729982 B CN 103729982B
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- mobile phone
- distance
- loss device
- bluetooth
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a kind of implementation method of Multifunctional lose-preventing device, anti-loss device comprises synochip safe unit, acousto-optic warning unit, bluetooth transmitting terminal and plug-in FLASH, anti-loss device and mobile phone are set up bluetooth and are connected, mutual binding, mobile phone A PP switches to anti-lost pattern, arrange safe distance, when exceeding setpoint distance, both are sound and light alarm simultaneously; Switch to searching mobile phone pattern, mobile phone periodically obtains RSSI value; During close to mobile phone, LED flicker frequency above anti-loss device is accelerated, away from time frequency deceleration; Otherwise handheld mobile phone can find anti-loss device.The invention has the beneficial effects as follows: PC information security and mobile phone data security protection realize within one device; Low-power consumption, energy-conserving and environment-protective; The distance with its binding mobile phone can be detected, and be prompted to user; Use hardware encryption chip to computer locking; Mobile phone operates to this equipment stream encryption of computer transmission Information Availability; Private information can be stored to inner Flash.
Description
Technical field
The present invention relates to information security and field of portable devices, more specifically, it relates to a kind of implementation method of Multifunctional lose-preventing device.
Background technology
Along with people's rhythm of life is accelerated day by day, mobile phone and computer more and more play indispensable role.Once lose, the loss on property not only can be brought, also can because of such as address list, the private informations such as photo are revealed and are brought unpredicted consequence.There is same problem in PC data, particularly the field such as finance, government is particularly outstanding.
Existing anti-lost bluetooth distance-sensor, generally comprises: 1, divide inductor: comprise sensing chip A; 2, main induction device: be inside provided with bluetooth sensing chip B and alarm C; Above-mentioned sensing chip is connected by bluetooth approach with bluetooth sensing chip.The deficiency of its structure is: 1. portability is not good; 2. function singleness; 3. safety coefficient is low; 4. application scenarios has limitation.Based on this background, a kind of equipment taking into account mobile phone and PC safety by the urgent need to.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, provide a kind of implementation method of Multifunctional lose-preventing device, the present invention is with bright first safety chip for Main Processor Unit, and in conjunction with technology such as bluetooths, a kind of security of realization is high, safety equipment easy to use.The present invention is to effectively solve following technical matters: 1. when user mobile phone is lost can not in time, searching mobile phone exactly; 2. when user leaves computer, effectively can not lock computer, have information leakage hidden danger; 3., when user's private information exists mobile phone or computer, there is potential safety hazard.
The present invention realizes the technical scheme that object adopts: the implementation method of this Multifunctional lose-preventing device, anti-loss device comprises synochip safe unit, acousto-optic warning unit, bluetooth transmitting terminal and plug-in FLASH, this anti-loss device and mobile phone are set up bluetooth and are connected, first Bluetooth of mobile phone MAC Address is used to bind mutually, mobile phone A PP switches to anti-lost pattern, sets safe distance, when mobile phone and anti-loss device exceed setpoint distance, both are sound and light alarm simultaneously, gets back to stop alarm in safe distance; Switch to searching mobile phone pattern at mobile phone A PP, mobile phone periodically obtains RSSI value, and progress displaying bar is found in the RSSI adjustment according to current acquisition; Hand-held anti-loss device searching mobile phone, during close to mobile phone, the LED flicker frequency above anti-loss device is accelerated, and slow down away from flicker frequency during mobile phone, user can find direction, mobile phone place according to LED flicker frequency; Otherwise handheld mobile phone finds anti-loss device, distance both APP interface progress bar length is reacted.
In anti-lost pattern, the step after bluetooth successful connection set up by anti-loss device and mobile phone is as follows: 1), mobile phone periodically obtains RSSI value; 2), the RSSI value of the RSSI value of the current acquisition of mobile phone and the anti-lost distance of setting compares, and judges currency whether >=setting value; 3), if it is step 1) is turned back to, if not, then mobile phone and the same alarm of anti-loss device.
As preferably, adopting the CC2541 chip carrying RSSI, between two the bluetooth communication nodes establishing connection, detecting distance can be carried out by obtaining RSSI,
In wireless telecommunications, the relation of power and distance is as follows:
P
R(dBm)=A-10·n·1gr
Wherein A can be regarded as Signal transmissions 1 meter far away time Received signal strength power, n is propagation factor, and r is the distance between node, when after the value determining constant A and n, distance r just according to above-mentioned formulae discovery out, can realize the distance exam of mobile phone and anti-loss device by detection signal strength.
Further, the private information in mobile phone backups to plug-in Flash after can being encrypted by safe unit.
Further, anti-loss device is inserted computer USB mouth, first start computer end software binding Bluetooth of mobile phone MAC Address, mobile phone A PP end arranges safe distance.When the spacing of mobile phone and computer exceedes safe distance, the automatic screen locking of computer; Get back to safe distance, computer solution is shielded; Equipment is in computer lock function, if pull up equipment, and computer screen lock.
The invention has the beneficial effects as follows: 1.PC information security and mobile phone data security protection realize within one device; 2. low-power consumption, energy-conserving and environment-protective; 3. this anti-loss device can detect the distance with its binding mobile phone, and is prompted to user; 4. use hardware encryption chip to computer locking; 5. mobile phone operates to this equipment stream encryption of computer transmission Information Availability; 6. can store private information to inner Flash.
Accompanying drawing explanation
Fig. 1 is present system structured flowchart;
Fig. 2 is bluetooth binding procedure schematic diagram of the present invention;
Fig. 3 is the anti-lost functional realiey process flow diagram of the present invention;
Fig. 4 is looking up function realization flow figure of the present invention;
Fig. 5 is bluetooth anti-loss device end software design block diagram of the present invention;
Fig. 6 is bluetooth security logging device software design block diagram of the present invention;
Fig. 7 is the automatic screen locking of the present invention/unlocking function realization flow figure;
Fig. 8 is mobile phone terminal software design block diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described further.
System of the present invention is the safe anti-loss device based on synochip safety chip.System architecture as shown in Figure 1.This equipment can be divided into following a few part:
1. anti-loss device part
Equipment and mobile phone are set up bluetooth and are connected, and first use Bluetooth of mobile phone MAC Address to bind mutually.Mobile phone A PP switches to anti-lost pattern, sets safe distance, when mobile phone and equipment exceed setpoint distance, both are sound and light alarm simultaneously, gets back to stop alarm in safe distance.Bluetooth binding procedure is shown in Fig. 2, and anti-lost functional realiey process flow diagram, is shown in Fig. 3.
Searching mobile phone pattern is switched at mobile phone A PP.Handheld device searching mobile phone, during close to mobile phone, the LED flicker frequency above equipment is accelerated, and slows down away from flicker frequency during mobile phone.User can find direction, mobile phone place according to LED flicker frequency.Otherwise handheld mobile phone finds anti-loss device, distance both APP interface progress bar length is reacted.Process flow diagram is shown in Fig. 4.
(1) RSSI range finding:
CC2541 chip carries RSSI, can by obtaining RSSI(ReceivedSignalStrengthIndication between two the bluetooth communication nodes establishing connection) carry out detecting distance.
In wireless telecommunications, the relation of power and distance is as follows:
P
R(dBrr)=A-10·n·1gr
Wherein A can be regarded as Signal transmissions 1 meter far away time Received signal strength power, n is propagation factor (it by obstacle, the impacts such as temperature and humidity), and r is the distance between node.When after the value determining constant A and n, distance r just can calculate according to PR (dBm).The distance exam of mobile phone and anti-loss device is realized by detection signal strength.
(2) bluetooth anti-loss device end software design block diagram, is shown in Fig. 5.
2. computer lock part
Equipment is inserted computer USB mouth, first start computer end software binding Bluetooth of mobile phone MAC Address.Mobile phone A PP end arranges safe distance.When the spacing of mobile phone and computer exceedes safe distance, the automatic screen locking of computer; Get back to safe distance, computer solution is shielded.Equipment is in computer lock function, if pull up equipment, and computer screen lock.
Private information (as account number cipher, key etc.) in mobile phone backups to plug-in Flash or computer end after can being encrypted by safe unit.
(1) bluetooth security logging device Software for Design frame, is shown in Fig. 6.
(2) automatic screen locking/unlocking function realization flow, is shown in Fig. 7.
3. mobile phone A PP software design block diagram, is shown in Fig. 8.
Although the present invention will be described in conjunction with preferred embodiment, should know, and not represent and limit the invention in described embodiment.On the contrary, the present invention will contain can be included in attached claims limit scope of the present invention in alternative, modified and equivalent.
Claims (4)
1. the implementation method of a Multifunctional lose-preventing device, it is characterized in that: this anti-loss device comprises synochip safe unit, acousto-optic warning unit, bluetooth transmitting terminal and plug-in FLASH, this anti-loss device and mobile phone are set up bluetooth and are connected, first Bluetooth of mobile phone MAC Address is used to bind mutually, mobile phone A PP switches to anti-lost pattern, sets safe distance, when mobile phone and anti-loss device exceed setpoint distance, both are sound and light alarm simultaneously, gets back to stop alarm in safe distance; Switch to searching mobile phone pattern at mobile phone A PP, mobile phone periodically obtains RSSI value, and progress displaying bar is found in the RSSI adjustment according to current acquisition; Hand-held anti-loss device searching mobile phone, during close to mobile phone, the LED flicker frequency above anti-loss device is accelerated, and slow down away from flicker frequency during mobile phone, user can find direction, mobile phone place according to LED flicker frequency; Otherwise handheld mobile phone finds anti-loss device, distance both APP interface progress bar length is reacted; Anti-loss device is inserted computer USB mouth, first start computer end software binding Bluetooth of mobile phone MAC Address, mobile phone A PP end arranges safe distance; When the spacing of mobile phone and computer exceedes safe distance, the automatic screen locking of computer; Get back to safe distance, computer solution is shielded; Equipment is in computer lock function, if pull up equipment, and computer screen lock.
2. the implementation method of Multifunctional lose-preventing device according to claim 1, is characterized in that: in anti-lost pattern, and the step after bluetooth successful connection set up by anti-loss device and mobile phone is as follows: 1), mobile phone periodically obtains RSSI value; 2), the RSSI value of the RSSI value of the current acquisition of mobile phone and the anti-lost distance of setting compares, and judges currency whether >=setting value; 3), if it is step 1) is turned back to, if not, then mobile phone and the same alarm of anti-loss device.
3. the implementation method of Multifunctional lose-preventing device according to claim 1 and 2, is characterized in that: adopt and carry the CC2541 chip of RSSI, can carry out detecting distance between two the bluetooth communication nodes establishing connection by obtaining RSSI,
In wireless telecommunications, the relation of power and distance is as follows:
P
R(dBm)＝A-10·n·lgr
Wherein A can be regarded as Signal transmissions 1 meter far away time Received signal strength power, n is propagation factor, and r is the distance between node, when after the value determining constant A and n, distance r just according to above-mentioned formulae discovery out, can realize the distance exam of mobile phone and anti-loss device by detection signal strength.
4. the implementation method of Multifunctional lose-preventing device according to claim 1, is characterized in that: the private information in mobile phone backups to plug-in Flash after can being encrypted by safe unit.
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| CN201410009205.6A CN103729982B (en) | 2014-01-08 | 2014-01-08 | A kind of implementation method of Multifunctional lose-preventing device |
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| CN201410009205.6A CN103729982B (en) | 2014-01-08 | 2014-01-08 | A kind of implementation method of Multifunctional lose-preventing device |
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