CN100384223C - Method of implementing burglary prevention of digital camera with Blue Teeth technique - Google Patents
Method of implementing burglary prevention of digital camera with Blue Teeth technique Download PDFInfo
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- CN100384223C CN100384223C CNB2005100234359A CN200510023435A CN100384223C CN 100384223 C CN100384223 C CN 100384223C CN B2005100234359 A CNB2005100234359 A CN B2005100234359A CN 200510023435 A CN200510023435 A CN 200510023435A CN 100384223 C CN100384223 C CN 100384223C
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- digital camera
- remote controller
- bluetooth
- watch dog
- dog timer
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Abstract
The present invention discloses a method of implementing burglary prevention of a digital camera with the Bluetooth technique; at a digital cameral terminal, if a user chooses to start an alarm function, A watchdog timer interrupt and the Bluetooth receiving interrupt are started; a word opening alarm orders is sent to a remote controller; the watch dog timer begins to time the time; once the overflow occurs, the method sends alarm; if a digital camera receives calling signals from the remote controller, the receiving interrupt generates; an interrupt service programme clears the watch dog timer and sends reply signals. At a remote controller terminal, the Bluetooth receiving interrupt is in a normally open state to monitor the signals send from a Bluetooth module of the digital camera; if the order word with the functions of opening and alarming is received, the watchdog timer interrupt is opened and begins to send call signals; the watch dog timer begins to time the time; once overflow occurs, the method sends alarm. The present invention can immediately send alarm and prevents the digital camera from being stolen when the digital camera keeps a certain distance away from a user so as to cause communication interrupt.
Description
Technical field
The present invention relates to a kind of using method of digital camera, particularly relate to a kind of method that realizes burglary prevention of digital camera with Bluetooth technology.
Background technology
The appearance design of current digital camera is mostly towards pocket, and ultrathin direction develops, but market is also increasing to the requirement of data medium capacity simultaneously.SMARTMEDIA Card (smart media card) 256MB by now and the release of 1GB memory stick from several years ago 32MB, even the mass memory medium also begin (for example to be applied to digital camera, the intelligent drives mini disc that has the kilomegabit storage capacity that IBM releases is because of it has the new lover that the high ratio of performance to price becomes many hand-hold electronic equipments suppliers).These electron-like consumer goods are often carried in daily leisure and tourist activity again, because its volume is mostly very small and exquisite, in case owner's vigilance is not high, are easy to cause loss or stolen.This type of incident takes place, user loss be not only camera itself, if the precious photo, data or other confidential information that have in the medium (hard disk) are stolen by other people, can bring immeasurable material and emotional distress to the owner of camera.If the user is utilized by other people for preventing the stolen back of camera data, and all encrypts for each file when operation, and is then not only time-consuming but also require great effort.If this type of encryption is only at system, the expert also can obtain data by pulling down the also outer method that is suspended on another main frame of medium (hard disk).The protected data best bet is managed a camera exactly and " is seen the jail " in a word.Existing digital camera does not all have anti-theft feature.
Summary of the invention
The technical problem to be solved in the present invention provides and a kind ofly realizes the method for burglary prevention of digital camera with Bluetooth technology, in case digital camera during away from user's certain distance communication disruption, then can be reported to the police at once, prevents that digital camera is stolen.
For solving the problems of the technologies described above, of the present inventionly realize the method for burglary prevention of digital camera, and adopting following steps at digital camera and inner each the integrated bluetooth module of remote controller thereof with Bluetooth technology:
At the digital camera end, open digital camera after, at first, select whether to start warning function by the user, if selection starts, then open its Watch Dog Timer interruption and bluetooth and receive interruption, and open the alarm command word to one of remote controller transmission, pick up counting by described Watch Dog Timer then, in case overflow then report to the police,, then produce bluetooth and receive and interrupt if digital camera is received the call signal of remote controller, empty this Watch Dog Timer by interrupt service routine, and send a reply signal to remote controller; The call signal circular flow that digital camera detecting remote control device sends is closed warning function up to the user;
At the remote controller end, bluetooth receives interrupts being in normally open, the signal that monitoring is sent from digital camera end bluetooth module, if receive the command word of opening warning function, then opening remote controller end Watch Dog Timer interrupts, and begin to send call signal, pick up counting by described remote controller end Watch Dog Timer then, in case overflow then report to the police,, then respond remote controller end bluetooth and receive and interrupt if receive the return signal of digital camera, empty remote controller end Watch Dog Timer by interrupt service routine, the return signal circular flow that remote controller detecting digital camera sends, and constantly send call signal, close warning function up to the user.
The invention has the beneficial effects as follows, because at digital camera and inner each the integrated bluetooth module of remote controller thereof, utilize the Bluetooth technology transmission range (about 10 meters, adjustable power) and the characteristic on the direction, when remote controller and digital camera from when very near, both sides can both detect the other side mutually, and then all are normal.In case digital camera is away from user's certain distance communication disruption, then the both can report to the police at once.The user can note abnormalities in the very first time, and judged the definite position of digital camera.
In addition, compare with infrared ray, Bluetooth technology has omni-directional, so when the user controls remote controller, will it directly not aim at the receiving terminal of digital camera, and Bluetooth signal is not subjected to the restriction of barriers such as wall, can realize wireless taking pictures and monitoring in real time (can suitably lower to realize the real-time Data Transmission function in this type of application scenario image resolution ratio) every room control in some industry spot that is pernicious to people or virus infections district.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done explanation in further detail:
Fig. 1 is the control flow chart of method of the present invention at the digital camera end;
Fig. 2 is the control flow chart of method of the present invention at the remote controller end.
Embodiment
Method with Bluetooth technology realization burglary prevention of digital camera of the present invention at digital camera and inner each the integrated bluetooth module of remote controller thereof, utilizes the Bluetooth technology that has strong data transmission capabilities concurrently to realize the anti-theft feature of digital camera.
As shown in Figure 1, at the digital camera end, after user's start, digital camera is in holding state at ordinary times, when the user selects different buttons, just has and interrupts producing, and interrupt service routine can judge the function of button.When the user by appointment button or after the window menu on the touch-screen (digital camera with multimedia function often has been equipped with the LCD of band touch-screen) selected warning function, then it opens Watch Dog Timer interruption and bluetooth reception interruption, and opens the command word of warning to expression of remote controller transmission.Digital camera enters the detecting state at this moment, prepares the call signal of response from remote controller at any time.
Unlatching along with the interruption of digital camera end Watch Dog Timer, this timer begins to continue timing, if be not cleared (time is overflowed in visual actual conditions adjustment) within 5 seconds (being that the bluetooth module of digital camera end did not receive the call signal from remote controller within 5 seconds), then described Watch Dog Timer then can produce and overflow interruption.Enter Watch Dog Timer immediately and overflow interrupt service subroutine, open warning circuit and report to the police.The form of reporting to the police can be that high frequency is uttered long and high-pitched sounds, even lights the photoflash lamp of digital camera.
If the bluetooth module of digital camera end receives the call signal from remote controller, the bluetooth that then can make an immediate response receives interrupts, and digital camera enters bluetooth immediately and receives interrupt service subroutine, and at this moment, the operating system Watch Dog Timer of can resetting empties it; Subsequently, the bluetooth module by the digital camera end sends a reply signal to remote controller, and digital camera withdraws from bluetooth and has no progeny in receiving, and continues to enter the detecting state.
If the user selects to close the warning function of digital camera, then close described Watch Dog Timer interruption and bluetooth and receive interruption, and send the command word that warning is closed in an expression to remote controller, so the warning function of digital camera and remote controller just can be synchronously, the operating state that enters no detecting function.
If the user reports to the police owing to misoperation makes digital camera, place too far away at the beginning as both, after digital camera sends out the command word of warning function, remote controller is never received, the Watch Dog Timer of digital camera produces to overflow and interrupts causing warning, or artificially both too far apart are produced warning, can adopt manual operation in time to close warning function by the button or the window menu on the touch-screen of appointment.
Do not select to open if the user both, and do not select again to close warning function, that should be other button operation, by corresponding interrupt service routine it is handled.After button operation finished, system was in holding state.At this moment, if bluetooth is interrupted or house dog interrupts being in open mode, system can respond corresponding interruption, after corresponding interruption is returned, continues to get back to holding state then.
As shown in Figure 2, at the remote controller end, bluetooth receives interrupts being in normally open, monitors the signal that sends from digital camera end bluetooth module, if receive the command word of opening warning function, then opens its Watch Dog Timer and interrupts, and begin to send call signal.
Unlatching along with the interruption of remote controller end Watch Dog Timer, this timer begins to continue timing, if (time is overflowed in visual actual conditions adjustment) is not cleared within 5 seconds, described Watch Dog Timer can produce and overflow interruption (being that the bluetooth module of remote controller did not receive the call signal from digital camera within 5 seconds).Remote controller enters Watch Dog Timer immediately and overflows interrupt service subroutine, and warning circuit is activated, and the form of warning can be that high frequency is uttered long and high-pitched sounds or LED continues flicker.
If the bluetooth module of remote controller end has received the call signal from digital camera, its controller bluetooth that then can make an immediate response receives and interrupts, and remote controller enters bluetooth immediately and receives interrupt service subroutine.At this moment, can the reset Watch Dog Timer of remote controller end of operating system empties it; Have no progeny in withdrawing from, described controller can continue by bluetooth module emission call signal, and detects the return signal of digital camera simultaneously.
If receive the command word of closing warning function, then close remote controller end Watch Dog Timer and interrupt.After interruption was returned, remote controller was in holding state, waited for the generation of next time interrupting.Interrupting may be that bluetooth is interrupted next time, if overflowing, Watch Dog Timer interrupts being in opening, and also may be that house dog is overflowed interruption.
If the user reports to the police owing to misoperation makes remote controller, can adopt manual operation in time to close warning function by the button of appointment.Remote controller can withdraw from Watch Dog Timer and overflow interrupt service subroutine, enters holding state.
Can be equipped with vibrating motor at the remote controller end, color LED and buzzer every several seconds, just carry out handshake communication one time with digital camera, in case the time that Bluetooth communication interrupts surpasses the set point of monitor, remote controller will give the alarm.Simultaneously, digital camera is owing to detect less than remote controller, and its teller who carries also can report to the police, and lights photoflash lamp automatically, farthest to cause owner's attention.
Whether use warning function to be selected by user oneself, this function can be closed when indoor editor's photograph, power saving on the one hand can be avoided unnecessary warning on the other hand.When the user carries digital camera and travels outdoors, open warning function, and note camera and remote controller is placed apart, for example, remote controller can be designed to the wrist formula or cherish hangingly, vibrations is arranged, sounding and the function of uttering long and high-pitched sounds.In addition, open warning function if the user forgets meter, camera also can be reminded the user next time when being waken up.
Claims (7)
1. realize it is characterized in that the method for burglary prevention of digital camera:, and adopt following steps with Bluetooth technology for one kind at digital camera and inner each the integrated bluetooth module of remote controller thereof:
At the digital camera end, open digital camera after, at first, select whether to start warning function by the user, if selection starts, then open its Watch Dog Timer interruption and bluetooth and receive interruption, and open the alarm command word to one of remote controller transmission, pick up counting by described Watch Dog Timer then, in case overflow then report to the police,, then produce bluetooth and receive and interrupt if digital camera is received the call signal of remote controller, empty this Watch Dog Timer by interrupt service routine, and send a reply signal to remote controller; The call signal circular flow that digital camera detecting remote control device sends is closed warning function up to the user;
At the remote controller end, bluetooth receives interrupts being in normally open, the signal that monitoring is sent from digital camera end bluetooth module, if receive the command word of opening warning function, then opening remote controller end Watch Dog Timer interrupts, and begin to send call signal, pick up counting by described remote controller end Watch Dog Timer then, in case overflow then report to the police,, then respond remote controller end bluetooth and receive and interrupt if receive the return signal of digital camera, empty remote controller end Watch Dog Timer by interrupt service routine, the return signal circular flow that remote controller detecting digital camera sends, and constantly send call signal, close warning function up to the user.
2. the method that realizes burglary prevention of digital camera with Bluetooth technology according to claim 1, it is characterized in that: at the digital camera end, in case overflowing then report to the police, described timing is meant, if the bluetooth module of digital camera end did not receive the call signal from remote controller within 5 seconds, then digital camera end Watch Dog Timer produces at once and overflows interruption, enter Watch Dog Timer immediately and overflow interrupt service subroutine, open warning circuit and report to the police.
3. the method with Bluetooth technology realization burglary prevention of digital camera according to claim 1 is characterized in that: can adopt manual operation at the digital camera end, close warning function by the window menu on button or the touch-screen.
4. the method that realizes burglary prevention of digital camera with Bluetooth technology according to claim 1, it is characterized in that: describedly close warning function at the digital camera end subscriber and be meant, close described Watch Dog Timer interruption and bluetooth and receive interruption, and to command word of closing warning of remote controller transmission, the operating state that enters no detecting function.
5. the method that realizes burglary prevention of digital camera with Bluetooth technology according to claim 1, it is characterized in that: described at the remote controller end, report to the police in case timing is overflowed and to be meant, if the bluetooth module of remote controller did not receive the call signal from digital camera within 5 seconds, then the Watch Dog Timer of remote controller end produces at once and overflows interruption, remote controller enters Watch Dog Timer immediately and overflows interrupt service subroutine, and warning circuit is activated.
6. the method that realizes burglary prevention of digital camera with Bluetooth technology according to claim 1, it is characterized in that: describedly close warning function at the remote controller end subscriber and be meant, closing described remote controller end Watch Dog Timer interrupts, after interruption is returned, remote controller is in holding state, waits for the generation of next time interrupting.
7. the method with Bluetooth technology realization burglary prevention of digital camera according to claim 1 is characterized in that: can adopt manual operation at the remote controller end, close warning function by button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100234359A CN100384223C (en) | 2005-01-19 | 2005-01-19 | Method of implementing burglary prevention of digital camera with Blue Teeth technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100234359A CN100384223C (en) | 2005-01-19 | 2005-01-19 | Method of implementing burglary prevention of digital camera with Blue Teeth technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1809124A CN1809124A (en) | 2006-07-26 |
| CN100384223C true CN100384223C (en) | 2008-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100234359A Expired - Fee Related CN100384223C (en) | 2005-01-19 | 2005-01-19 | Method of implementing burglary prevention of digital camera with Blue Teeth technique |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104079815A (en) * | 2013-09-25 | 2014-10-01 | 苏州天鸣信息科技有限公司 | Camera assembly and control method thereof |
| CN109393686A (en) * | 2018-07-03 | 2019-03-01 | 朱书瀚 | A kind of anti-theft intelligent wallet |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002183866A (en) * | 2000-12-13 | 2002-06-28 | Kyokuto Sanki Co Ltd | Theft prevention and reporting system using cellular phone |
| WO2002056536A1 (en) * | 2001-01-09 | 2002-07-18 | Telefonaktiebolaget Lm Ericsson | Method and system for bonding two bluetooth devices |
| JP2003233877A (en) * | 2002-02-06 | 2003-08-22 | Toshiba Corp | Protectee retrieving system and its method |
| CN2575684Y (en) * | 2002-07-29 | 2003-09-24 | 左文辑 | Mechanical light switch |
| CN1525749A (en) * | 2003-02-28 | 2004-09-01 | ���ǵ�����ʽ���� | Method for locking and releasing a camera in a portable terminal having said camera |
-
2005
- 2005-01-19 CN CNB2005100234359A patent/CN100384223C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002183866A (en) * | 2000-12-13 | 2002-06-28 | Kyokuto Sanki Co Ltd | Theft prevention and reporting system using cellular phone |
| WO2002056536A1 (en) * | 2001-01-09 | 2002-07-18 | Telefonaktiebolaget Lm Ericsson | Method and system for bonding two bluetooth devices |
| JP2003233877A (en) * | 2002-02-06 | 2003-08-22 | Toshiba Corp | Protectee retrieving system and its method |
| CN2575684Y (en) * | 2002-07-29 | 2003-09-24 | 左文辑 | Mechanical light switch |
| CN1525749A (en) * | 2003-02-28 | 2004-09-01 | ���ǵ�����ʽ���� | Method for locking and releasing a camera in a portable terminal having said camera |
| EP1453285A1 (en) * | 2003-02-28 | 2004-09-01 | Samsung Electronics Co., Ltd. | Method for locking and releasing a camera in a portable terminal having said camera |
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| Publication number | Publication date |
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| CN1809124A (en) | 2006-07-26 |
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Granted publication date: 20080423 Termination date: 20220119 |