CN202033869U - Anti-loss device - Google Patents
Anti-loss device Download PDFInfo
- Publication number
- CN202033869U CN202033869U CN 201120031721 CN201120031721U CN202033869U CN 202033869 U CN202033869 U CN 202033869U CN 201120031721 CN201120031721 CN 201120031721 CN 201120031721 U CN201120031721 U CN 201120031721U CN 202033869 U CN202033869 U CN 202033869U
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- signal
- loss device
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Abstract
The utility model relates to an anti-loss device which includes a wireless emitter which is used to send a 315MHz wireless coded signal, and a wireless receiver which is suitable to receive the wireless coded signal within a preset distance. The wireless receiver includes a wireless receiving circuit, a decoder which is connected with an output terminal of the wireless receiving circuit, a vibration and voice alarm circuit which is connected with an alarm signal output terminal of the decoder, and is used to vibrate and to give a voice alarm when the wireless coded signal can not be received. In the anti-loss device, the 315MHz wireless frequency communication is adopted between the wireless emitter and the wireless receiver. Because of the adoption of the one-chip microcomputer internal coding, the coding of a master machine and a submachine of a different set can not be repeated. While in use, the submachine sends a special coding signal, and the master machine receives the signal. When the master machine can not receive the coding signal of the submachine, the master machine makes a sound and vibrates to send an alarm. The system stops the alarm if the submachine and the master machine are returned back within a receiving range.
Description
Technical field
The utility model relates to the technical field of Medical Cold Light Source, specifically is a kind of anti-loss device.
Background technology
In the modern life, father and mother often carry small children and stroll the supermarket or participate in all kinds of large-scale activities, cause father and mother and child often out of touch each other, cause a hidden trouble for child's personal safety, have brought unnecessary worry to father and mother simultaneously.Secondly, for some personages who keeps a pet, participating in all kinds of large-scale activities or when strolling in the park, pet often wanders away easily, thereby influencing normal social activities.Once more, for some valuables, often being subject to theft, how just in time reporting to the police at the beginning of stolen at these valuables, also is the technical matters of this area.
The utility model content
The technical problems to be solved in the utility model provide a kind of simple in structure, be suitable at the anti-loss device that is preventing that child, pet etc. wander away or at the beginning of valuables are stolen, reporting to the police.
In order to solve the problems of the technologies described above, the utility model provides a kind of anti-loss device, and it comprises: be used to launch 315MHz the wireless encoding signal wireless launcher and be suitable in setpoint distance, receiving the wireless receiver of described wireless encoding signal; This wireless receiver comprises: wireless receiving circuit, the demoder that links to each other with the output terminal of wireless receiving circuit, the vibrations and the voice alarm circuit that are used in the time can not receiving described wireless encoding signal vibrations and audio alert that link to each other with the alarm signal output ends of demoder.
Further, described wireless launcher comprises: scrambler and the radio transmitter that links to each other with the coded signal output terminal of scrambler.
Further, described encoder employing model is the single-chip microcomputer of ATTINY13.
Further, described demoder is connected with the duty gauge tap, with the duty of control demoder.
Further, described wireless receiver comprises: radio-frequency amplifier, the superregeneration formula detecting circuit that links to each other with the signal output part of radio-frequency amplifier and the amplifying circuit that links to each other with the signal output part of superregeneration formula detecting circuit, the output terminal of amplifying circuit links to each other with the signal receiving end of demoder.
Further, described wireless receiver also comprises: battery and the power supply booster circuit that is used to export the 3V direct supply that links to each other with this battery; The power output end of power supply booster circuit links to each other with the power end of demoder.
Technique scheme of the present utility model has the following advantages compared to existing technology: in the utility model, constitute a system by a wireless launcher (handset) and a wireless receiver (machine tool), adopt the radio frequency communications of 315MHZ between son, the machine tool.Because what adopt is the single-chip microcomputer in-line coding, so be not that the composite aircraft of same set of machine is encoded and can not repeated.During system works, handset is sent distinctive coded signal, and machine tool receives, and when machine tool did not receive the coded signal of handset, machine tool sends living sound and vibrations are reported to the police, if this moment, handset returned in the range of receiving with machine tool, system stops warning.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is the structural principle synoptic diagram of the anti-loss device among the embodiment;
Fig. 2 is the circuit block diagram of the wireless launcher among the embodiment;
Fig. 3 is the circuit block diagram of the wireless receiver among the embodiment;
Fig. 4 is the circuit theory diagrams of described wireless launcher;
Fig. 5 is the circuit theory diagrams of described wireless receiver.
Embodiment
See Fig. 1-5, the anti-loss device of present embodiment, it comprises: be used to launch 315MHz the wireless encoding signal wireless launcher and be suitable in setpoint distance, receiving the wireless receiver of described wireless encoding signal; This wireless receiver comprises: wireless receiving circuit, the demoder that links to each other with the output terminal of wireless receiving circuit, the vibrations and the voice alarm circuit that are used in the time can not receiving described wireless encoding signal vibrations and audio alert that link to each other with the alarm signal output ends of demoder.
Described wireless launcher comprises: scrambler and the radio transmitter that links to each other with the coded signal output terminal of scrambler.The power supply of wireless launcher adopts 3V formula button cell, to reduce volume.
It is the single-chip microcomputer of ATTINY13 that described encoder adopts model.The main effect of demoder is that the signal that receiving circuit receives is compared through decoding back and the coding of setting, and makes corresponding prompt on warning circuit.
Described demoder is connected with the duty gauge tap.
Described wireless receiver comprises: radio-frequency amplifier, the superregeneration formula detecting circuit that links to each other with the signal output part of radio-frequency amplifier and the amplifying circuit that links to each other with the signal output part of superregeneration formula detecting circuit, the output terminal of amplifying circuit links to each other with the signal receiving end of demoder.
Among Fig. 5, peripheral circuits such as triode Q3 are formed radio-frequency amplifier, and triode Q4 and peripheral circuit are superregeneration formula detecting circuit, and controllable impedance L4 regulates receive frequency, and regulating it, can to make the circuit receive frequency be 315MHz.Amplifying circuit is made up of U4A, U4B two stage amplifer, and the enlargement factor of potentiometer VR2 scalable first order amplifier has in fact just been regulated receiving range.
Described wireless receiver also comprises: the battery of 1.5V and the power supply booster circuit that is used to export the 3V direct supply that links to each other with this battery; The power output end of power supply booster circuit links to each other with the power end of demoder.Power circuit mainly is the cell voltage of 1.5V to be elevated to 3V power to single-chip microcomputer, and warning circuit is made up of a vibrating motor and a hummer, when machine tool does not receive the handset signal, provides sound and vibration alarming.
The effect of scrambler is an independently password to every cover anti-loss device to be set, and making between many cover anti-loss devices not can the phase mutual interference, in the present embodiment, has used the low-power consumption AVR single chip computer AT TINY13 of a 8PIN to be used as the scrambler of handset, IC1 among Fig. 4.
The radio transmitter of 315MHz is made up of C4, C3, Q1, Q2, R1, Y1, C2 etc., and the coded signal that single chip computer AT TINT13 sends is formed a complete code word by address code, numeric data code, synchronous code, sends the 315M radiating circuit to by the PB3 pin; When the PB3 pin is high level, the high-frequency signal that radio transmitter starting of oscillation and emission etc. are secondary, radiating circuit quits work when the PB3 pin is low level, so high frequency transmission circuit is controlled by the digital signal of single-chip microcomputer PB3 pin output fully, to be equivalent to degree of modulation be 100% amplitude modulation thereby high-frequency circuit is finished amplitude keying (ASK modulation).LED is the radiating circuit pilot lamp, can light when radiating circuit is worked.
Obviously, the foregoing description only is for the utility model example clearly is described, and is not to be qualification to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection domain of the present utility model.
Claims (6)
1. anti-loss device is characterized in that comprising: be used to launch 315MHz the wireless encoding signal wireless launcher and be suitable in setpoint distance, receiving the wireless receiver of described wireless encoding signal;
This wireless receiver comprises: wireless receiving circuit, the demoder that links to each other with the output terminal of wireless receiving circuit, the vibrations and the voice alarm circuit that are used in the time can not receiving described wireless encoding signal vibrations and audio alert that link to each other with the alarm signal output ends of demoder.
2. a kind of anti-loss device according to claim 1 is characterized in that: described wireless launcher comprises: scrambler and the radio transmitter that links to each other with the coded signal output terminal of scrambler.
3. a kind of anti-loss device according to claim 2 is characterized in that: it is the single-chip microcomputer of ATTINY13 that described encoder adopts model.
4. a kind of anti-loss device according to claim 3 is characterized in that: described demoder is connected with the duty gauge tap.
5. a kind of anti-loss device according to claim 4, it is characterized in that: described wireless receiver comprises: radio-frequency amplifier, the superregeneration formula detecting circuit that links to each other with the signal output part of radio-frequency amplifier and the amplifying circuit that links to each other with the signal output part of superregeneration formula detecting circuit, the output terminal of amplifying circuit links to each other with the signal receiving end of demoder.
6. a kind of anti-loss device according to claim 5 is characterized in that: described wireless receiver also comprises: battery and the power supply booster circuit that is used to export the 3V direct supply that links to each other with this battery; The power output end of power supply booster circuit links to each other with the power end of demoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120031721 CN202033869U (en) | 2011-01-30 | 2011-01-30 | Anti-loss device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120031721 CN202033869U (en) | 2011-01-30 | 2011-01-30 | Anti-loss device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202033869U true CN202033869U (en) | 2011-11-09 |
Family
ID=44896158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120031721 Expired - Lifetime CN202033869U (en) | 2011-01-30 | 2011-01-30 | Anti-loss device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202033869U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104050775A (en) * | 2014-06-13 | 2014-09-17 | 米振宇 | Reminder preventing people from being lost |
| CN109215301A (en) * | 2017-07-06 | 2019-01-15 | 天津工业大学 | A kind of intelligence is looked for something and burglary-resisting system |
-
2011
- 2011-01-30 CN CN 201120031721 patent/CN202033869U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104050775A (en) * | 2014-06-13 | 2014-09-17 | 米振宇 | Reminder preventing people from being lost |
| CN109215301A (en) * | 2017-07-06 | 2019-01-15 | 天津工业大学 | A kind of intelligence is looked for something and burglary-resisting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111109 |