CN201773468U - USB type handheld alarm device for burglary prevention of laptop - Google Patents
USB type handheld alarm device for burglary prevention of laptop Download PDFInfo
- Publication number
- CN201773468U CN201773468U CN2009201661627U CN200920166162U CN201773468U CN 201773468 U CN201773468 U CN 201773468U CN 2009201661627 U CN2009201661627 U CN 2009201661627U CN 200920166162 U CN200920166162 U CN 200920166162U CN 201773468 U CN201773468 U CN 201773468U
- Authority
- CN
- China
- Prior art keywords
- transmitting terminal
- hand
- receiving end
- laptop
- warning device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
- G08B13/1427—Mechanical actuation by lifting or attempted removal of hand-portable articles with transmitter-receiver for distance detection
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
- G08B21/0241—Data exchange details, e.g. data protocol
- G08B21/0252—System arrangements wherein the child unit emits, i.e. the child unit incorporates the emitter
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- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The utility model relates to an alarm device, in particular to a universal serial bus (USB) type handheld alarm device for burglary prevention of a laptop, which comprises a transmitting terminal and a receiving terminal. The transmitting terminal consists of a special wireless coding chip, a 315 MHz sound surface wave resonator, and a printed circuit board (PCB) loop aerial; the receiving terminal is an alarm which is carried by a user and consists of a superregeneration receiving module, a special wireless decoding module, a PCB loop aerial and an alarm buzzer; the transmitting terminal is not provided with a power supply; when the transmitting terminal is connected with a laptop, the power supply is provided by the laptop; once the transmitting terminal is not connected with the power supply, the receiving terminal alarms immediately in a range of 30 meters; or when the distance between the transmitting terminal for which power is provided by the power supply and the receiving terminal is out of the range of 30 meters, the receiving terminal alarms. The alarm device is implemented in an amplitude shift keying (ASK) mode and can be widely used for the burglary prevention of the laptop.
Description
Technical field
The present invention relates to a kind of notebook anti-theft device, be specially a kind of anti-theft device of employing wireless mode.
Background technology
Along with the development of society, people's living standard improves day by day, and the electrical equipment of expense costliness is more and more universal.These expensive electric equipment products generally do not have anti-theft feature or anti-theft feature simple then, crack easily.
As notebook computer, generally adopt now the theft preventing method of the antitheft or system password of lockhole, the antitheft method of lockhole performs practically no function, and very easily removes.And it is of no avail especially that system password is set, and can not play antitheft effect.
As application (patent) number: 200710076879.8 disclose a kind of theft preventing method of electrical equipment, adopt to electrical equipment encrypt mode carry out antitheft, but this mode can not move the integral body of electrical equipment and plays effective function.
And for example application (patent) number: 200420026734.9 disclose a kind of anti-theft alarming method that is applied in the photo-electric on the notebook computer, the shortcoming of the method is that the function of burglar alarm is subjected to the influence of light, and the emergency alarm bell sound is at notebook computer itself, when the machine master might can't hear the emergency alarm bell sound not on the computer next door time and suffers a loss.
Summary of the invention
The objective of the invention is to adopt wireless mode to provide a kind of anti-ly to lose to notebook computer, the device of burglar alarm, when notebook computer exceeds the scope that the user sets or notebook is shut down by force or this device when being pulled out from notebook computer, the receiving trap that the notebook computer user carries on one's body will send alarm sound.
The present invention gives by the following technical solutions in realization:
Apparatus of the present invention comprise transmitting terminal and the alarm receiving end that communicates with.
Further, adopt wireless mode to realize the signal and communication of transmitting terminal and receiving end.
Further, transmitting terminal possesses USB interface, can be connected with the USB port of notebook computer.
Further, described transmitting terminal does not possess power-supply system, and its power supply is provided by the notebook computer that is communicated with it.
Further, the condition code of described transmitting terminal and receiving end can be by the receiving end setting.
Further, described receiving end alarm adopts bell sound mode output alarm.
Further, the transmitter module of described transmitting terminal comprises private radio coding chip, SAW (Surface Acoustic Wave) resonator, antenna.
Further, described receiving end comprises superregenrative reception module, special-purpose decoder module, antenna, buzzer siren.
Apparatus of the present invention transmitting terminal has transmitter module, USB interface, LED light, and described components and parts connect with circuit.Wherein the USB interface of transmitting terminal realizes power supply by linking to each other with the USB mouth of notebook computer, and the USB port of during use the transmitting terminal USB interface of apparatus of the present invention being inserted notebook computer gets final product; Transmitter module comprises private radio coding chip, SAW (Surface Acoustic Wave) resonator, antenna, and described components and parts connect with circuit, adopts the private radio coding chip that the signal powder producer is modulated the back with wireless mode and realizes the signal emission.Receiving end has receiver module, battery, buzzer siren, LED light, and described components and parts connect with circuit, during use the receiving end of apparatus of the present invention is carried on one's body the user.Wherein receiver module comprises superregenrative reception module, special-purpose decoder module, antenna, and described components and parts connect with circuit.During received signal, receive the signal of launching from transmitting terminal by antenna, through a superregenrative reception module wireless signal is carried out demodulation (this superregenrative reception module is existing general technology modules) again, will discern in the input of the signal after the demodulation wireless decoding chip.The transmitter module of apparatus of the present invention will send a condition code so that receiver module is carried out the sign indicating number setting when initially powering on, receiver module will wait for that when initially powering on condition code such as nothing that transmitter module sends receive that condition code will be in wait to the sign indicating number state always, as receive that the condition code receiver module will differentiate with the wireless code that this condition code is received receiver module.
Beneficial effect of the present utility model is: because of common U of transmitter module likeness in form of apparatus of the present invention, so better disguised.Transmitter module and receiver module adopt and wirelessly the sign indicating number technology is carried out communication are connected and have guaranteed to use several these devices simultaneously and do not interfere with each other at the same area in addition.
Description of drawings
Fig. 1 is a theory diagram of the present invention
Fig. 2 is an emission part component of the present invention
Fig. 3 is an acceptance division component of the present invention
Embodiment
Below in conjunction with example and accompanying drawing apparatus of the present invention are further specified.
Apparatus of the present invention are made up of a transmitting terminal and a receiving end.See Fig. 1, transmitting terminal has transmitter module 1, USB interface 2, LED light 4, and described components and parts connect with circuit.Wherein transmitter module 1 comprises coding module 11,315MHz sound surface harmonics shake device 12, PCB tours antenna 3, and described components and parts connect with circuit, adopts the private radio coding chip that signal generator is modulated the back with wireless mode and realizes the signal emission.Receiving end has receiver module 5, buzzer siren 6, button cell 7, LED light 8, and described components and parts connect with circuit.Wherein receiver module 5 comprises superregenrative reception module 51, special-purpose decoder module 52, PCB tours antenna 9, and described components and parts connect with circuit.During received signal, receive the signal of launching from transmitting terminal, through a superregenrative reception module wireless signal is carried out demodulation again, will discern in the input of the signal after the demodulation wireless decoding chip by antenna.
After the user of notebook computer opens computer, the USB interface 2 of the transmitting terminal of this device is inserted the USB port of notebook computers, and powered by notebook computer.On one's body the receiving unit of this device is carried at by the user of notebook computer, and by self powered battery.When emitter of the present invention is switched on, transmitting terminal is by PCB tours antenna 3, transmit, and the private radio coding chip by coding module 11 is exported a string identification code to by Y1 by R7, Q1, C11 every about one second, C12, the 315MHz sound surface harmonics that R8 constitutes device 12 carrier waves that shake are modulated, 4 flickers of the LED light of private radio coding chip control simultaneously once, referring to Fig. 1 and Fig. 2.When the PCB tours antenna 9 in the receiving trap of the present invention receives the signal of being launched by transmitting terminal, insert the 8th pin of the decoding chip in the special-purpose decoder module 52 by the output terminal of module by superregenrative reception module 51 received signals.Decoding chip is to a string binary identification code differentiations of decoding of input, as differentiates 6 promptings of wrong then decoding chip control buzzer warning and control LED light 8 simultaneously and light, as differentiates correct LED and glimmered once every one second, referring to Fig. 1 and Fig. 3.When notebook computer exceed about 30 meters of users' scope or notebook is shut down by force or this device from notebook computer when being pulled out, it is receiving trap away from emissive source or emissive source power down and no signal when sending, receiving trap makes decoding chip produce differentiate 6 promptings of wrong signal controlling buzzer warning to control LED light 8 simultaneously and light, realize anti-theft alarm function of the present invention thus because of not receiving signal.
The function that the present invention realizes is exactly in normal distance, when emitter and receiving trap can normal communications, installs and does not report to the police, and when signal interruption or signal changed, system then reported to the police.The present invention is simple in structure, and is easy to use, portable, can be widely used in the antitheft and warning of the article that closely have USB port.
Claims (8)
1. one kind is used for the hand-held warning device of the antitheft USB formula of notebook, it is characterized in that: comprise transmitting terminal and the alarm receiving end that communicates with.
2. hand-held warning device according to claim 1 is characterized in that: adopt wireless mode to realize the signal and communication of transmitting terminal and receiving end.
3. hand-held warning device according to claim 1, it is characterized in that: transmitting terminal possesses USB interface, can be connected with the USB port of notebook computer.
4. hand-held warning device according to claim 1 is characterized in that: described transmitting terminal does not possess power-supply system, and its power supply is provided by the notebook computer that is communicated with it.
5. hand-held warning device according to claim 1 is characterized in that: the condition code of described transmitting terminal and receiving end can be by the receiving end setting.
6. hand-held warning device according to claim 1 is characterized in that: described receiving end alarm adopts bell sound mode output alarm.
7. according to claim 1 or 3 described hand-held warning devices, it is characterized in that: the transmitter module of described transmitting terminal comprises private radio coding chip, SAW (Surface Acoustic Wave) resonator, antenna.
8. according to claim 1 or 4 described hand-held warning devices, it is characterized in that: described receiving end comprises superregenrative reception module, special-purpose decoder module, antenna, buzzer siren.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201661627U CN201773468U (en) | 2009-07-16 | 2009-07-16 | USB type handheld alarm device for burglary prevention of laptop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201661627U CN201773468U (en) | 2009-07-16 | 2009-07-16 | USB type handheld alarm device for burglary prevention of laptop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201773468U true CN201773468U (en) | 2011-03-23 |
Family
ID=43753309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201661627U Expired - Fee Related CN201773468U (en) | 2009-07-16 | 2009-07-16 | USB type handheld alarm device for burglary prevention of laptop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201773468U (en) |
-
2009
- 2009-07-16 CN CN2009201661627U patent/CN201773468U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wuxi Yuchuan Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20120716 |