CN201025554Y

CN201025554Y - A near distance bidirectional prompt device

Info

Publication number: CN201025554Y
Application number: CNU2007201188780U
Authority: CN
Inventors: 部辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-09
Filing date: 2007-03-09
Publication date: 2008-02-20
Anticipated expiration: 2017-03-09

Abstract

The utility model relates to a short distance bidirectional reminding device. The technical scheme is that: the reminding device is two reminders that are matched with each other; the two reminders are separately arranged at two separate carriers. The reminding device consists of a RF receiver, a RF transmitter and an alarm that are integrated together. The RF receiver of a first reminder is used for receiving the pulse signal transmitted by the RF transmitter of a second reminder; and the RF receiver of the second reminder is used for receiving the pulse signal transmitted by the RF transmitter of the first reminder. When the distance between the two reminders is beyond the pre-set distance, the alarms arranged on the two reminders send alarm simultaneously. Compared to the present technology, the utility model not only can alarm, but also has the function of orientation objective, which is very suitable for the guard against theft of hidden goods such as mobile phone and wallet that is uneasy to be discovered, small and costly, and is also suitable to preventing the lost between adults and children in children park.

Description

A kind of near distance bidirectional reminding device

Technical field

The utility model relates to a kind of warning reminding device, particularly relate to a kind of in the detachment process of many article, surpass the device of the warning reminding of certain distance scope.

Background technology

Existing closely alarm set is just like described in the document of China Patent No. ZL90212252.5, title " apart from the antitheft reminiscences of formula case and bag ".The document has been put down in writing by transmitter and receiver warning device dimerous.Wherein transmitter is placed in the case and bag, and receiver is placed on people's the body; Perhaps transmitter is placed in child's pocket, and receiver is placed on adult's the body.When transmitter and receiver were separated by a distance, receiver just sent chimes of doom, noticed that with reminds people scattering of article and child's is discrete.

Above-mentioned in-plant alarm set no doubt can play reminding effect, but can't play antitheft effect, more can't accomplish bidirectional alarming, and inapplicable through a lot of occasions of being everlasting.Such as, after article were stolen, this alerting pattern can only remind the owner stolen, but can't locate mainour, can not play fright to the burglar, therefore can't and then play anti-theft effect, can only play the effect of notifying owner's article lost.And for example in bus and the crowded public arena of people, receiver is placed on one's body everyone of mobile phone, transmitter is arranged on the mobile phone, when mobile phone stolen by the people leave everyone certain distance of mobile phone after, the receiver of everyone on one's body of mobile phone begins to report to the police, at this moment, everyone knows hand-set from stolen mobile phone, but but can't know what mobile phone quilt which definite people on every side stole.If around suspecting everyone, this obviously is unfair to the people who not have pilferage.Certainly, usually in this case, some people on every side cooperates the owner of lost property to investigate the mobile phone whereabouts in order to safeguard the human dignity refusal.This closely reminiscences is to allow a device in a pair of device pipe, and can not allow the individuality of the non-carrier that pipes comform and distinguish in a plurality of bodies, therefore has significant limitation.

The utility model content

Technical problem to be solved in the utility model is: a kind of near distance bidirectional reminding device is provided, solves existing closely alarm set after the reminiscences alarm and the technical matters that can not locate.

For solving the problems of the technologies described above, the utility model discloses following technical scheme: a kind of near distance bidirectional reminding device, described alarm set is two reminiscences that match and use, two reminiscences are divided on two carriers of separation, and described reminiscences comprises one integrated radio receiver, radiofrequency launcher and alarm; The radio frequency receiver of first reminiscences is used for receiving the pulse signal of the radiofrequency launcher emission of second reminiscences, the radio frequency receiver of second reminiscences is used for receiving the pulse signal of the radiofrequency launcher emission of first reminiscences, alarm on the distance that distance between two reminiscences surpass to be set, two reminiscences will be reported to the police simultaneously.

Preferably: described alarm is a hummer.

Preferably: described alarm is an audible-visual annunciator.

The beneficial effects of the utility model: compared to existing technology, the utility model can allow two carriers that respectively are loaded with a reminiscences report to the police in critical distance simultaneously, can allow the individuality of warning carrier comform like this and distinguish in a plurality of bodies, can reach the effect of bidirectional alarming location.Implant after the reminiscences miniaturization of products that relates to of the present utility model in the carry-on valuables such as mobile phone or laptop computer, can play anti-theft warning and the anti-function of losing.Realize bidirectional alarming, any one article that this product for example is installed are stolen, another article all can be reported to the police, the reminder master item is lost, simultaneously stolen article also can be reported to the police, and orient the particular location of stolen article, to mobile phone and wallet such little and valuable, do not allow detectable hidden article antitheft very suitable, also be fit to such as in children's paradise, anti-adult and child wander away.

Description of drawings

Fig. 1 is a principle schematic of the present utility model.

Fig. 2 is the circuit structure block scheme of a kind of receiver of the present utility model.

Fig. 3 is the circuit diagram of receiver among Fig. 2.

Fig. 4 is the circuit diagram of a kind of transmitter of the utility model.

Embodiment

The utility model is a kind of near distance bidirectional reminding device, and referring to Fig. 1, this alarm set is on a pair of carrier that is contained in separately and the reminiscences that matches is reported to the police.Reminiscences comprises one integrated radio receiver, radiofrequency launcher and alarm.

Radiofrequency launcher wherein, referring to a kind of radiofrequency launcher shown in Figure 4, it mainly is grouped into by vibration radiating portion, encoder section and power control part, Fig. 4 is the circuit diagram of this transmitter, wherein the expanded letter 20 hem facing slice encode chip PT2262 of encoder section are the general coding-decoding circuits of low-power consumption low price of a kind of CMOS technology manufacturing of Taiwan Pu Cheng company production, and it is usually used in the wireless remote control radiating circuit.The coded signal that coding chip PT2262 sends by: address code, numeric data code, synchronous code are formed a complete code word, after decoding chip PT2272 receives signal, after its address code is relatively checked through twice, VT pin (i.e. the 19th pin) is just exported high level, meanwhile corresponding data pin is also exported high level, if transmitting terminal presses ﹠ hold always, coding chip also can be launched continuously.When transmitter does not have button to press, PT2262 disconnects power supply, its the 19th pin is a low level, so high frequency transmission circuit is not worked, when button is pressed, PT2262 gets electric work, its the 19th pin is exported modulated serial data signal, when the 19th pin is high frequency transmission circuit starting of oscillation and launch the constant amplitude high-frequency signal between high period, the high frequency transmission circuit failure of oscillations during the 19th pin is for low putting down, so high frequency transmission circuit is received the digital signal of controlling in the output of the 19th pin of PT2262 fully, to be equivalent to degree of modulation be 100% amplitude modulation thereby high-frequency circuit is finished amplitude keying (ASK modulation).

Radio frequency receiver referring to the described a kind of radio frequency receiver of Fig. 2, mainly is made of RF reception and coded portion, time-delay and paraphase part, bistable switch part, time-delay and button discharge switch part and power control part branch.The RF receiver module receives and sends coder module to after wireless messages is handled, and referring to Fig. 3, what scrambler adopted among the figure is 2272 chips of 18 pin.555 chips among the figure are the bistable switch circuit, are used for the break-make control of control load, and wherein load comprises the hummer among Fig. 3.Among Fig. 3, the circuit between the 2nd pin of the 12nd pin of 2272 chips and 555 chips is the time-delay phase inverter, and signal is through this circuit part, doing time-delay and adjusting the back paraphase and amplify the bistable switch circuit of input based on 555 chips, enters hummer again.The bistable switch control circuit is controlled time-delay and button discharge circuit simultaneously, and this partial circuit is connected with the power control part parallel circuit, is the auxiliary circuit of power control circuit.

The pulsating wave of the radiofrequency launcher emission of first reminiscences is received by the radio frequency receiver of second reminiscences, and the pulsating wave of the radiofrequency launcher emission of second reminiscences is received by the radio frequency receiver of first reminiscences.Alarm on the distance that distance between two reminiscences surpass to be set, two reminiscences is reported to the police simultaneously.Alarm is a hummer.Also can be audible-visual annunciator.

The utility model can use in mobile phone and wallet antitheft, and a reminiscences in a pair of reminiscences is installed on the mobile phone, and another reminiscences places on the another one article on the human body that carries this mobile phone, as wallet.

The utility model can also be applied in child's the nurse, and a reminiscences in a pair of reminiscences places young child, and another reminiscences places on one's body the adult who carries this child.

During use, the continuous transponder pulse signal of the transmitter of a reminiscences, the receiver search of another reminiscences is fit to the pulse signal of its frequency.In the time can searching its signal, alarm does not start; When searching for less than its signal, alarm starts reports to the police.Because each reminiscences all has transmitter and receiver, Gu this transponder pulse signal and search pulse signal are two-way, thus, the alarm of generation also starts simultaneously.

For example first reminiscences is installed on the mobile phone, another second reminiscences is placed in mobile phone owner's the wallet, the alarm distance of mobile phone and wallet can be made as 3 meters.When mobile phone is stolen by thief third, as long as the thief is away from outside 3 meters of the owners, the hummer of owner's second reminiscences on one's body starts reports to the police, simultaneously the hummer of first reminiscences on the mobile phone also starts and pipes, the prompting hand-set from stolen that pipes of hummer, the owner can arrive thief's particular location with sound localization soon.

Claims

1. near distance bidirectional reminding device, it is characterized in that: described alarm set is two reminiscences that match and use, two reminiscences are divided on two carriers of separation, and described reminiscences comprises one integrated radio receiver, radiofrequency launcher and alarm; The radio frequency receiver of first reminiscences is used for receiving the pulse signal of the radiofrequency launcher emission of second reminiscences, the radio frequency receiver of second reminiscences is used for receiving the pulse signal of the radiofrequency launcher emission of first reminiscences, alarm on the distance that distance between two reminiscences surpass to be set, two reminiscences will be reported to the police simultaneously.

2. a kind of near distance bidirectional reminding device according to claim 1 is characterized in that: described alarm is a hummer.

3. a kind of near distance bidirectional reminding device according to claim 1 is characterized in that: described alarm is an audible-visual annunciator.