CN104123803A - Anti-theft device for mobile electronic equipment - Google Patents
Anti-theft device for mobile electronic equipment Download PDFInfo
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- CN104123803A CN104123803A CN201410395272.6A CN201410395272A CN104123803A CN 104123803 A CN104123803 A CN 104123803A CN 201410395272 A CN201410395272 A CN 201410395272A CN 104123803 A CN104123803 A CN 104123803A
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Abstract
The invention provides an anti-theft device for mobile electronic equipment. The anti-theft device for the mobile electronic equipment comprises a transmission module and a reception module, wherein the reception module comprise an alarm device; the transmission module is internally or externally arranged in the mobile electronic equipment, and used for decoding the signal to be transmitted and transmitting the encoded signal; the reception module is used for receiving the encoded signal and decoding the signal, and generating a control instruction when decoding cannot be normally carried out, for controlling the alarm device to alarm and indicate that the distance between the reception module and the transmission module exceeds a preset value. By internally or externally arranging the transmission module for transmitting a signal in real time in the mobile electronic equipment (for example, a mobile phone) to be protected , the current information state of the mobile phone is transmitted in real time, the signal is received and decoded by the reception module, and when the distance between the reception module and the transmission module exceeds the preset value, correct decoding cannot be carried out, and at this moment, the reception module controls the alarm device to alarm. The transmission module and the reception module are small in size, low in cost, convenient to carry by a user, and abundant in function.
Description
Technical field
The present invention relates to portable lamp field, in particular to the anti-theft device for mobile electronic device.
Background technology
Along with developing rapidly of electronics and information industry, mobile electronic device (for example smart mobile phone, laptop computer and video camera) has also obtained larger popularizing, and is applied in widely in people's work and life.Common, user gos out and can carry one or more electronic equipments, so user can worry electronic equipment loss or stolen.
In order to prevent electronic equipment loss or stolen, a kind of Mobile phone burglar alarm is provided in correlation technique, Mobile phone burglar alarm embedded with bluetooth module, its blue teeth wireless by bluetooth module and mobile phone matches.Mobile phone burglar alarm can not reported to the police in the scope that can receive Bluetooth of mobile phone wireless signal, but mobile phone leaves 3 meters of the effective ranges of Mobile phone burglar alarm, Mobile phone burglar alarm lost mobile phone Bluetooth signal, with the boom unit on Mobile phone burglar alarm, give the alarm at once, thereby remind mobile phone owner, give the mobile phone of loss for change.
But the Mobile phone burglar alarm volume in correlation technique is excessive, and wired connection in protection mobile phone, inconvenient user carries, and for not having other electronic equipments of Bluetooth function to use, function singleness.
Summary of the invention
The object of the present invention is to provide the anti-theft device for mobile electronic device, to solve the above problems.
A kind of anti-theft device for mobile electronic device is provided in an embodiment of the present invention, has comprised: transmitter module and the receiver module matching with transmitter module; Receiver module comprises warning device;
Transmitter module, built-in or be placed in mobile electronic device to be protected, for armed signal is encoded, and the signal after launching code;
Receiver module is for the signal after received code and signal is decoded, and generating steering order during normal decoder, in order to control warning device, reports to the police, with indicate its with the distance of transmitter module over preset value.
Further, this device also comprises the receiving trap for sticking on the sticker on mobile electronic device to be protected and matching with sticker;
Sticker inside is provided with transmitter module; Receiving trap inside is provided with receiver module.
Further, this device also comprises adhesive sticker; One side of sticker is provided with adhesive phase, and sticker sticks on mobile electronic device to be protected by adhesive phase;
Adhesive sticker is used for being fitted in adhesive phase, in order to prevent pasting other article on adhesive phase.
Further, in this device, be provided with through hole on receiving trap, through hole is for matching with the article such as key, wallet, with fixed reception device.
Further, in this device, transmitter module comprises coding circuit and radio transmitter; Coding circuit is for encoding and modulate armed signal; Radio transmitter is for the signal after launching code; Wherein, modulation system comprises with lower one or more: analogue modulation system and digital modulation mode;
Receiver module comprises receiving circuit and decoding circuit; The signal that receiving circuit sends for receiving radio transmitter; Decoding circuit is used for decoding to the received signal, and reports to the police according to the output control warning device of decoding.
Further, in this device, transmitter module of the unique identification of receiver module, or a plurality of transmitter modules of the corresponding identification of receiver module.
Further, in this device, receiving circuit is Armstrong circuit; Transmitter module also comprises the carrier current channel being connected between coding circuit and radio transmitter;
Carrier current channel is for the signal after coding and modulation is carried out to filtering and amplification, to high-frequency carrier signal is passed through;
Receiver module also comprises the detecting circuit being connected between Armstrong circuit and decoding circuit;
Detecting circuit, for extracting low frequency signal from the signal receiving.
Further, in this device, receiver module also comprises: be connected to the warning circuit that amplification and rectification circuit between detecting circuit and decoding circuit and decoding circuit are electrically connected to;
Amplification and rectification circuit, amplifies and shaping for the low frequency signal that detecting circuit is extracted;
Warning circuit is electrically connected to warning device, when not receiving decoded signal in Preset Time, controls warning device and reports to the police.
Further, in this device, radio transmitter adopts ultrashort wave (USW) wireless communication mode;
Radio transmitter adopts the signal after single tube radio transmitter launching code.
Further, in this device, transmitter module and receiver module all also comprise power module;
Power module is used to coding circuit, carrier current channel, radio transmitter, receiving circuit, detecting circuit, amplification and rectification circuit, decoding circuit, warning device and warning circuit 111 that power supply is provided.
The anti-theft device for mobile electronic device that the embodiment of the present invention provides, comprising: transmitter module and the receiver module matching with transmitter module, receiver module comprises warning device, transmitter module, built-in or be placed in mobile electronic device, for armed signal is encoded, and the signal after launching code, receiver module is used for the signal after received code and signal is decoded, and generate steering order cannot normal decoder time, in order to control warning device, report to the police, to indicate the distance of itself and transmitter module to surpass preset value, excessive with the Mobile phone burglar alarm volume in correlation technique, and wired connection in protection mobile phone, inconvenient user carries, and for not having other electronic equipments of Bluetooth function to use, the scheme of function singleness is compared, it is by built-in or external transmitter module in mobile electronic device to be protected, transmitter module transmits in real time, in order to the current information state of real-time transmitting mobile electronic device to be protected, and by the signal after the real-time received code of receiver module, and this signal is decoded, when the distance of reception and transmitter module surpasses preset value, receiver module can not receive complete signal, can not be correctly decoded the coded signal receiving, now warning device is reported to the police in order to point out user's receiver module that mobile electronic device distance to be protected is carried at any time to surpass preset value, reminding user is checked whether mobile electronic device to be protected is lost or is stolen.The present invention is built-in or be placed in mobile electronic device to be protected by transmitter module; by the state of receiver module Real-Time Monitoring mobile electronic device to be protected; and the own volume of transmitter module and receiver module is little, cost is low; facilitate user to carry; and transmitter module can be applied in any mobile electronic device; be used in conjunction with receiver module, needn't require mobile electronic device must carry bluetooth, feature richness.
Accompanying drawing explanation
Fig. 1 shows the structural representation of the anti-theft device for mobile electronic device that the embodiment of the present invention provides;
Fig. 2 shows the structural representation of the anti-theft device transmitter module for mobile electronic device that the embodiment of the present invention provides;
Fig. 3 shows the structural representation of the anti-theft device receiver module for mobile electronic device that the embodiment of the present invention provides.
Embodiment
Below by specific embodiment, also by reference to the accompanying drawings the present invention is described in further detail.
The embodiment of the present invention provides a kind of anti-theft device for mobile electronic device, as shown in Figure 1, comprising: transmitter module 101 and the receiver module 102 matching with transmitter module 101; Receiver module 102 comprises warning device 103; Transmitter module 101, built-in or be placed in mobile electronic device to be protected, for armed signal is encoded, and the signal after launching code; Receiver module 102 is for the signal after received code and signal is decoded, and generating steering order during normal decoder, in order to control warning device 103, reports to the police, with indicate its with the distance of transmitter module 101 over preset value.
The anti-theft device for mobile electronic device that the embodiment of the present invention provides, comprising: transmitter module 101 and the receiver module 102 matching with transmitter module 101, receiver module 102 comprises warning device 103, transmitter module 101, built-in or be placed in mobile electronic device, for armed signal is encoded, and the signal after launching code, receiver module 102 is for the signal after received code and signal is decoded, and generate steering order cannot normal decoder time, in order to control warning device 103, report to the police, to indicate the distance of itself and transmitter module 101 to surpass preset value, excessive with the Mobile phone burglar alarm volume in correlation technique, and wired connection in protection mobile phone, inconvenient user carries, and for not having other electronic equipments of Bluetooth function to use, the scheme of function singleness is compared, it is by built-in or external transmitter module 101 in mobile electronic device to be protected, transmitter module 101 transmits in real time, in order to the current information state of real-time transmitting mobile electronic device to be protected, and by the signal after the real-time received code of receiver module 102, and this signal is decoded, when the distance of reception and transmitter module 101 surpasses preset value, receiver module 102 can not receive complete signal, can not be correctly decoded the coded signal receiving, now warning device 103 is reported to the police in order to point out user's receiver module 102 that mobile electronic device distance to be protected is carried at any time to surpass preset value, reminding user is checked whether mobile electronic device to be protected is lost or is stolen.The present invention is built-in or be placed in mobile electronic device to be protected by transmitter module 101; by the state of receiver module 102 Real-Time Monitorings mobile electronic device to be protected; and the transmitter module 101 and volume of receiver module 102 own is little, cost is low; facilitate user to carry; and transmitter module 101 can be applied to be used in conjunction with receiver module 102 in any mobile electronic device; needn't require mobile electronic device must carry bluetooth, feature richness.
Concrete, the mobile electronic device in the present invention can be mobile phone (smart mobile phone and regular handset), portable notebook computer, panel computer, video camera and single anti-etc.Anti-theft device for mobile electronic device of the present invention, is mainly comprised of transmitter module 101 and receiver module 102 two parts; Concrete, this transmitter module 101 can be built in mobile electronic device to be protected (take in the present embodiment mobile phone describe for example), also can be external in mobile phone to be protected.
Wherein, suitable position on the chip of the built-in inside that is included in mobile phone arranges transmitter module 101, because 101 of transmitter modules are as the equipment of independently working, the work therefore it can directly match with receiver module 102, be the signal after the outside launching code of transmitter module 101, to receive and decode with receiver module 102; Be embedded into this transmitter module 101 in the devices such as paster external specifically comprising, then paster is attached on mobile phone.Concrete, paster can be attached on the bonnet of mobile phone, also can be attached to before mobile phone, does not affect the position of screen, also paster can be attached in the mobile phone shell that is enclosed within mobile phone.Receiver module 102 and warning device 103, can be built in the article such as ornaments (can be specifically to have certain thickness Q version personage, the ornaments such as animal) inner, and then these ornaments being matched with key, wallet etc. (for example, hangs on the key; Hang on wallet or be placed in wallet etc.), receiver module 102 receives the signal through coding of transmitter module 101 transmittings in real time, and the signal of coding is decoded, when the signal that collects 102 pairs of codings of receiver module when warning device 103 can not be correctly decoded, report to the police and from the distance of ornaments, surpassed preset value in order to warn user mobile phone.
Wherein, preset value can arrange according to user's requirement, such as being set to 1m, 2m, 3m and 10m etc., specifically can regulate.
Wherein, the principle that transmitter module 101, receiver module 102 and warning device 103 coordinate is: when receiver module 102 is surpassing the signal after the coding that can not receive 101 transmittings of complete transmitter module in the scope of preset value, therefore it,, when the signal after this coding is decoded, can not be correctly decoded; After the decoding each time of receiver module 102, it all can send to warning device 103 by the result of decoding, and generates steering order according to the unsuccessful result of decoding, controls warning device 103 and reports to the police.
Further, this device also comprises the receiving trap for sticking on the sticker on mobile electronic device to be protected and matching with sticker; Sticker inside is provided with transmitter module 101; Receiving trap inside is provided with receiver module 102.
Concrete, sticker can be the silica gel ornaments such as various Q version personages, animal; Or cartoon character card, landscape card or animal card etc.; The mobile phone shell that this sticker is used for sticking on cell phone rear cover, protecgulum (not blocking the position of mobile phone screen) or is enclosed within mobile phone, its inside is provided with transmitter module 101, signal for the coding of transmitting process in real time, to inform in real time the status information (concrete, i.e. the positional information of mobile phone) of receiver module 102 mobile phones; Also make mobile phone more attractive in appearance simultaneously.
Same, receiving trap can be also the silica gel ornaments such as various Q version personages, animal; Or cartoon character card, landscape card or animal card etc.; This receiving trap is for matching with the article such as key, wallet, receives in real time the signal after the coding of transmitter module 101 transmittings, and the signal of coding is decoded; Equally, the cooperation of this receiving trap and key or wallet makes to decorate more attractive in appearance equally.
Further, this device also comprises adhesive sticker; One side of sticker is provided with adhesive phase, and sticker sticks on mobile electronic device to be protected by adhesive phase, in order to sticker is better fitted on mobile phone; Adhesive sticker is used for being fitted in adhesive phase, in order to prevent pasting other article on adhesive phase.
Concrete, use pressure sensitive adhesive on adhesive phase, first guaranteed that adhesive phase is not destroyed, guaranteed the integrality of adhesive phase.In addition, can also protect this adhesive phase can not be stained with other impurity, and destroy the integrality of adhesive phase or damaged other article.
Further, in this device, be provided with through hole on receiving trap, through hole is for matching with the article such as key, wallet, with fixed reception device.
Concrete, receiving trap can be by hanging on key chain, together with key; Or by through hole, hang on wallet, match with wallet, more attractive in appearance as ornaments, and be used for conveniently receiving the signal that transmitter module 101 is launched.
Further, as shown in Figures 2 and 3, in this device, transmitter module 101 comprises coding circuit 104 and radio transmitter 106; Coding circuit 104 is for encoding and modulate armed signal; Radio transmitter 106 is for the signal after launching code; Wherein, modulation system comprises with lower one or more: analogue modulation system and digital modulation mode;
Receiver module 102 comprises receiving circuit 107 and decoding circuit 110; The signal that receiving circuit 107 sends for receiving radio transmitter 106; Decoding circuit 110 is for decoding to the received signal, and reports to the police according to the output control warning device 103 of decoding.
In the present embodiment, two kinds of circuit that coding circuit 104 and decoding circuit 110 are the effect of cooperatively interacting.Concrete, coding circuit 104 can use infrared remote control integrated circuit PT2262, carry out encoding and decoding with corresponding decoding chip PT2272, PT2262/PT2272 is the general coding-decoding circuit 110 of low-power consumption low price that a kind of CMOS technique of Taiwan Pu Cheng company production is manufactured, employing paster encapsulates, and can reduce the volume of complete machine.And above-mentioned coding circuit 104 and decoding circuit 110 specifically can be implemented such scheme by binary coding and corresponding binary decoded, it should be noted that Code And Decode is existing mature technology, therefore the present invention does not illustrate this.
Wherein, modulation system can adopt any one mode in amplitude modulation and frequency modulation type.The main receipts of receiving circuit 107 adopts superhet mode to receive, and the benefit of superheterodyne reception is that reception signal is become to intermediate frequency, and to obtain same enlargement factor, so receiving sensitivity is high, selectivity is good.Each transmitter module 101 and receiver module 102, to there being ID (Identity, identity indicates number), in order to carry out ID identification checking, therefore coding circuit 104 preferably uses ASK mode to modulate, thereby are easily realized the identification of ID.Cooperatively interacting of transmitter module 101 in the present invention and receiver module 102, if receiver module 102 connects power amplifying device, it can also use as radio, and can also carry out 4 bit parallel wireless transmission.
Preferably, the emissive power of radio transmitter 106 is less than or equal to 10MW, because radio transmitter 106 transmits in this frequency range, receiving circuit 107 can be good at receiving, therefore for saving resource and cost-saving, the emissive power that radio transmitter 106 is set is less than or equal to 10MW.
Further, as shown in Figures 2 and 3, in this device, receiving circuit 107 is Armstrong circuit 107; Transmitter module 101 also comprises the carrier current channel 105 being connected between coding circuit 104 and radio transmitter 106; Carrier current channel 105 is for the signal after coding and modulation is carried out to filtering and amplification, to high-frequency carrier signal is passed through; Receiver module 102 also comprises the detecting circuit 108 being connected between Armstrong circuit 107 and decoding circuit 110; Detecting circuit 108, for extracting low frequency signal from the signal receiving.
Concrete, radio transmitter 106 preferably carries out single tube transmitting, concrete, and single tube radiating circuit is simple and cost is low; Receiver module 102 is used Armstrong circuit 107, object is to use that element is few, circuit is simple and highly sensitive, and to selectivity and the less demanding simple wireless remote control communication equipment of signal to noise ratio (S/N ratio) as products such as anti-theft devices of the present invention, use the practical value of superregenerative detection circuit 108 high.
Further, as shown in Figures 2 and 3, in this device, receiver module 102 also comprises: be connected to the amplification and rectification circuit 109 between detecting circuit 108 and decoding circuit 110; Amplification and rectification circuit 109, amplifies and shaping for the low frequency signal that detecting circuit 108 is extracted.
The reception and transmission range of this circuit is shorter, and receiver module 102 receives is digital signal, therefore adopt Armstrong circuit 107, even if noise is larger, by carrier current channel 105 and amplification and rectification circuit 109, digital signal is well restored.
Further, as shown in Figures 2 and 3, this device also comprises: the warning circuit 111 being electrically connected to decoding circuit 110; Warning circuit 111 is electrically connected to warning device 103, when not receiving decoded signal in Preset Time, controls warning device 103 and reports to the police.
Further, in this device, transmitter module 101 of the unique identification of receiver module 102, or a plurality of transmitter modules 101 of receiver module 102 corresponding identification.
Concrete, each receiver module 102 and transmitter module 101 correspondences arrange an ID (Identity, identity indicates number), in order to carry out ID identification checking.According to used coding circuit 104 features, can realize at most the different coded sequence of 38 power kind, be enough to meet ID and identify variable requirement.In the present invention, device (actual fabrication two covers in the present embodiment of many cover transmitter modules 101 and receiver module 102 can be set, adopt intermittent duty, thereby and realize low-power consumption scheme), make the requirement of two covering devices: 1, the different unique receiver module 102 of the transmitter module 101 unique identification of energy, and not disturbed by other modules, effective synchronisation measures just need to be proposed and the standard etc. of shaking hands; For example, when having A, two receiver modules 102 of B, it is corresponding two transmitter module 101E and F respectively;
2, different transmitter module 101 identifications can be identified same receiver module 102: for example, when having A, two receiver modules 102 of B, it can a simultaneously corresponding transmitter module 101C.
Concrete, (1) during A, two receiver modules of a B 102 simultaneously corresponding transmitter module 101C: A, two receiver module 102 circuit of B are adjusted to same frequency, its address code presetting bit is all set to 10000001, transmitter module 101 circuit are connect to identical address code 10000001 simultaneously, three circuit are put together, opening power, find that two receiving circuits 107 all do not report to the police, mobile radiating circuit at a distance two receiving circuits 107 all report to the police, illustrate that a plurality of circuit modules can identify (under the identical condition of ID) mutually.
(2) A, two receiver modules of B corresponding two transmitter module 101E of 102 difference and F: A, B two cover systems are adjusted to same frequency, use simultaneously, and the address of two cover systems is set to 10000001 and 10000000 respectively, the radiating circuit of mobile system A is that it is away from two receiving circuits 107, the receiving circuit 107 of discovery system A is reported to the police and the receiving circuit 107 of system B is not reported to the police, and this illustrates that different transmitter module 101 can receiver module 102 corresponding to unique identification.
Further, in this device, transmitter module 101 and receiver module 102 all also comprise power module;
Power module is used to coding circuit 104, carrier current channel 105, radio transmitter 106, receiving circuit 107, detecting circuit 108, amplification and rectification circuit 109, decoding circuit 110, warning device 103 and warning circuit 111 that power supply is provided.
Concrete, the button cell that adopts 3V in the present embodiment provides power supply for transmitter module 101, receiver module 102 and warning device 103.Because button cell volume is little and be convenient for carrying.It should be noted that, the present invention does not do concrete restriction to the type of battery, and it can be any battery that volume is little.
Concrete, power module is respectively arranged with this power module in transmitter module 101 and receiver module 102, and this power module can be connected with any one circuit in transmitter module 101 respectively, also can be connected in series on a circuit; In like manner.The set-up mode of this power module in receiver module 102.
Anti-theft device for mobile electronic device provided by the invention is a kind of can detecting apart from far and near high-tech electronic device, it can prevent mobile electronic device (as mobile phone, laptop computer, panel computer and video camera) or some other vital documents (as handbag, automobile key and the parcel etc.) loss or stolen that user carries, also can prevent that accompanying children loss or pet from losing, there is the advantages such as efficient, safe, convenient, economical and practical simultaneously.
Concrete, for the anti-theft device of mobile electronic device, by handset (being transmitter module 101) and machine tool (being receiver module 102), formed, not that same set of composite aircraft is encoded different, can phase mutual interference, wireless transmit frequency is different.Handset is comprised of coding circuit 104 and radio transmitter 106, and machine tool is comprised of retroactive reception circuit 107, decoding circuit 110, warning circuit 111 and power circuit.Transmitter module 101, is placed in mobile electronic device to be protected, and receiver module 102 matches with belongings such as key and wallets.When receiver module 102 can normally receive and decode the signal of coding of transmitter module 101 transmitting, warning device 103 is in idle state; When the distance of transmitter module 101 and receiver module 102 is greater than preset value, represent mobile electronic device loss to be protected or stolen by people, receiver module generates steering order according to decoded result and controls warning device 103 and report to the police.
Concrete, it is that work is comparatively stable and transmission range is far away that transmitter module 101 and receiver module 102 are built its electric circuit characteristic by discrete component.
Anti-theft device for mobile electronic device provided by the invention has the following advantages:
1) easy to use, applicability is wide: volume is small and exquisite, is easy to carry, and can not cause to going out any burden, thus can be widely used in mobile electronic device, simultaneously also can be for it the valuables such as wallet and case and bag or child, the use of anti-lost or anti-theft.
2) multiple functional, stable performance: having safe distance can regulate arbitrarily, anti-lost and looking up function.Its type of alarm is for alert sound prompting or attach vibrating function.
3) outward appearance is novel, environmental protection: the very small and exquisite fineness of this device appearance design, and environmental protection, radiationless.It embeds in sticker and matches with sticker, for preventing mobile electronic device loss or stolen, and itself also can be made into the ornament of carrying, and small and exquisite, weight is 35.5g only, can hang on key ring or waistband.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention maybe can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in memory storage and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. for an anti-theft device for mobile electronic device, it is characterized in that, comprising: transmitter module and the receiver module matching with described transmitter module; Described receiver module comprises warning device;
Described transmitter module, built-in or be placed in mobile electronic device to be protected, for armed signal is encoded, and the described signal after launching code;
Described receiver module is for the described signal after received code and described signal is decoded, and generating steering order during normal decoder, in order to control described warning device, reports to the police, with indicate its with the distance of described transmitter module over preset value.
2. device according to claim 1, is characterized in that, also comprises the receiving trap for sticking on the sticker on mobile electronic device to be protected and matching with described sticker;
Described sticker inside is provided with described transmitter module; Described receiving trap inside is provided with described receiver module.
3. device according to claim 2, is characterized in that, also comprises adhesive sticker; One side of described sticker is provided with adhesive phase, and described sticker sticks on described mobile electronic device to be protected by described adhesive phase;
Described adhesive sticker is used for being fitted in described adhesive phase, in order to prevent pasting other article on described adhesive phase.
4. device according to claim 3, is characterized in that, on described receiving trap, is provided with through hole, and described through hole is for matching with the article such as key, wallet, to fix described receiving trap.
5. device according to claim 1, is characterized in that, described transmitter module comprises coding circuit and radio transmitter; Described coding circuit is for encoding and modulate described armed signal; Described radio transmitter is for the described signal after launching code; Wherein, described modulation system comprises with lower one or more: analogue modulation system and digital modulation mode;
Described receiver module comprises receiving circuit and decoding circuit; The described signal that described receiving circuit sends for receiving radio transmitter; Described decoding circuit is used for the described signal receiving to decode, and reports to the police according to the output control warning device of decoding.
6. device according to claim 5, is characterized in that, transmitter module of the unique identification of described receiver module, or a plurality of transmitter modules of the corresponding identification of described receiver module.
7. device according to claim 6, is characterized in that, described receiving circuit is Armstrong circuit; Described transmitter module also comprises the carrier current channel being connected between described coding circuit and described radio transmitter;
Described carrier current channel is for the described signal after coding and modulation is carried out to filtering and amplification, to high-frequency carrier signal is passed through;
Described receiver module also comprises the detecting circuit being connected between described Armstrong circuit and described decoding circuit;
Described detecting circuit, for extracting low frequency signal from the described signal receiving.
8. device according to claim 7, is characterized in that, described receiver module also comprises: be connected to the warning circuit that amplification and rectification circuit between described detecting circuit and described decoding circuit and described decoding circuit are electrically connected to;
Described amplification and rectification circuit, amplifies and shaping for the described low frequency signal that described detecting circuit is extracted;
Described warning circuit is electrically connected to described warning device, when not receiving decoded signal in Preset Time, controls described warning device and reports to the police.
9. device according to claim 8, is characterized in that, described radio transmitter adopts ultrashort wave (USW) wireless communication mode;
Described radio transmitter adopts the described signal after single tube radio transmitter launching code.
10. device according to claim 9, is characterized in that, described transmitter module and described receiver module all also comprise power module;
Described power module is used to described coding circuit, described carrier current channel, described radio transmitter, described receiving circuit, described detecting circuit, described amplification and rectification circuit, described decoding circuit, described warning device and described warning circuit that power supply is provided.
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| CN201410395272.6A CN104123803A (en) | 2014-08-12 | 2014-08-12 | Anti-theft device for mobile electronic equipment |
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| CN201410395272.6A CN104123803A (en) | 2014-08-12 | 2014-08-12 | Anti-theft device for mobile electronic equipment |
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| CN108498069A (en) * | 2017-02-23 | 2018-09-07 | 光宝电子(广州)有限公司 | Wearable electronic device and its emergency help method |
| WO2020056557A1 (en) * | 2018-09-17 | 2020-03-26 | Nokia Shanghai Bell Co., Ltd. | Warnings dependent on location |
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