CN2439699Y - Electronic anti-lost and anti-theft alarm - Google Patents
Electronic anti-lost and anti-theft alarm Download PDFInfo
- Publication number
- CN2439699Y CN2439699Y CN 00212901 CN00212901U CN2439699Y CN 2439699 Y CN2439699 Y CN 2439699Y CN 00212901 CN00212901 CN 00212901 CN 00212901 U CN00212901 U CN 00212901U CN 2439699 Y CN2439699 Y CN 2439699Y
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- machine
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- Expired - Fee Related
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- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 230000005236 sound signal Effects 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
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Abstract
The utility model relates to an improvement of electron anti-lost alarm structure. The utility model comprises a portable machine and a main machine, and has the structural key points that the portable machine and the main machine are both provided with the same electronic transmitter and the same electronic receiver. The utility model has the characteristics of two-way alarming function has simple structure moreover, easily preparation etc.
Description
The utility model relates to the anti-improvement of losing anti-theft apparatus structure of electronics.
To lose alarm simple in structure, easy to use though present electronics is anti-, and its insufficiency makes and lost stolen thing and be difficult to return.Tracing it to its cause is that electronics prevents that losing alarm is unidirectional warning, can not be to being lost stolen thing orientation, location, and particularly in the how noisy occasion of people, the owner is difficult to recover article especially.
The purpose of this utility model just provides a kind of electronics with bidirectional alarming function and prevents losing antitheft telltale.
The purpose of this utility model is achieved in that the utility model comprises carry-on machine, owner's machine, and its structural feature is that carry-on machine, owner's machine are provided with identical transmitter electronics, electronic receiver.
Major advantage of the present utility model:
1, have the bidirectional alarming function:
Because carry-on machine, owner's machine of telltale of the present utility model are provided with transmitter electronics, electronic receiver, when stolen being lost taken place when, machine, owner's machine are reported to the police simultaneously with oneself, the owner is perceived, and direction and the position that can demand article by the transmitter on the carry-on machine, guaranteed the safety of valuables;
2, simple in structure, be easy to make:
The utility model is simple in structure, and transmitter electronics, electronic receiver be custom circuit, is easy to make, be easy to popularize.
Fig. 1 is the structural representation of carry-on machine;
Fig. 2 is the structural representation of owner's machine;
Fig. 3 is an electrical structure block diagram of the present utility model;
Fig. 4 is an electrical structure synoptic diagram of the present utility model.
Following structure accompanying drawing is described further concrete structure of the present utility model:
The utility model comprises carry-on machine 1, owner's machine 2, and machine 1, owner's machine 2 are provided with identical transmitter electronics, electronic receiver with oneself.
Transmitter electronics of the present utility model is to be connected in sequence by high frequency carrier generator 3, ∏ mode filter 4, multivibrator 5; Electronic receiver is to be connected in sequence by superregenerative detector 10, audio frequency amplification emitter follower 9, frequency-selecting amplifier 8, music card circuit 7.
Transmitter electronics:
Triode BG
1(its model is 9013, and frequency of operation is 30MHz, and output power is greater than 5mW) and electric capacity JA, coil L
1It is the high frequency carrier generator 3 of the main feedback bikini oscillatory circuit of forming.
Coil L
2, capacitor C
3, C
4Form ∏ mode filter 4, play the decoupling effect.
Triode BG
3(model is 9013), triode BG
4(model is 9013) is the main multivibrator of forming 5, the sound signal control triode BG that this multivibrator 5 sends
2(model is 9013) work realizes the modulation to triode BG1 master-oscillator; Audio signal frequency is decided by R
5, R
6, C
5, C
6And W
1
Carry out frequency-selecting reliably in order to receive function, suppress to disturb, during batch process, between the high-frequency signal that transmitter sends proper spacing must be arranged, avoid cross interference, pass through W
1Adjust, its reference data is 1080,1320,1970,2400,2940Hz.
Electronic receiver:
Triode BG
5(its model is 9013) is the main superregenerative detector 10 of forming.
Triode BG
6, triode BG
7, triode BG
8(its model is 9013) formed the direct coupling audio in the two poles of the earth and amplified repeller follower 9.
Triode BG
9(model is 9013) is the main frequency-selecting amplifier 8 of forming, and has on-off action.Have only specific low frequency signal to pass through.Adjust resistance R
10Can make the very narrow of bandwidth work, by different carrier frequency and low frequency modulations.Can rearrange a lot of ways and do not disturb mutually, be convenient to produce by batch multimachine and use simultaneously.
Triode BG
10, triode BG
11(its model is 9013) is the main music card circuit of forming 7.
Narrate a course of action of the present utility model below:
Emission process:
Machine 1 produces high-frequency signal, triode BG by high frequency carrier generator 3 with oneself
2Be in switch working state, multivibrator 5 produces sound signal control triode BG
2Work, play the decoupling effect by ∏ mode filter 4 again after, send by emitting antenna;
Receiving course:
When external signal specific, frequency-selecting amplifier 8 is open-minded, resistance R
11Current potential raises, triode BG
8Conducting, BG
9End, then music card circuit 7 is obstructed.In case when owner's machine 2 left 1-10 rice, extraneous signal was very little or disappear 7 connections of music card circuit, loudspeaker P warning.
Claims (2)
1, electronics prevents that losing antitheft telltale comprises carry-on machine (1), owner's machine (2), is characterized in that carry-on machine (1), owner's machine (2) are provided with identical transmitter electronics, electronic receiver.
2, lose antitheft telltale according to the described electronics of claim (1) is anti-, it is characterized in that transmitter electronics is to be connected in sequence by high frequency carrier transmitter (3), ∏ mode filter (4), multivibrator (5); Electronic receiver is to be connected in sequence by superregenerative detector (10), audio frequency amplification emitter follower (9), frequency-selecting amplifier (8), music card circuit (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00212901 CN2439699Y (en) | 2000-08-11 | 2000-08-11 | Electronic anti-lost and anti-theft alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00212901 CN2439699Y (en) | 2000-08-11 | 2000-08-11 | Electronic anti-lost and anti-theft alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2439699Y true CN2439699Y (en) | 2001-07-18 |
Family
ID=33579317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00212901 Expired - Fee Related CN2439699Y (en) | 2000-08-11 | 2000-08-11 | Electronic anti-lost and anti-theft alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2439699Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297178A (en) * | 2015-05-20 | 2017-01-04 | 陆云波 | A kind of anti-losing device with warning function |
-
2000
- 2000-08-11 CN CN 00212901 patent/CN2439699Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297178A (en) * | 2015-05-20 | 2017-01-04 | 陆云波 | A kind of anti-losing device with warning function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |