CN2336414Y - Multifunctional remote control alarm - Google Patents
Multifunctional remote control alarm Download PDFInfo
- Publication number
- CN2336414Y CN2336414Y CN 98221984 CN98221984U CN2336414Y CN 2336414 Y CN2336414 Y CN 2336414Y CN 98221984 CN98221984 CN 98221984 CN 98221984 U CN98221984 U CN 98221984U CN 2336414 Y CN2336414 Y CN 2336414Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- triode
- output terminal
- sound
- receiver
- 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
Links
- 239000013078 crystal Substances 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
A multifunctional remote-controlled alarm is composed of transmitter and receiver, the transmitter can be installed to the monitored object, and the receiver can be carried by the monitored person. When the transmitter changes its original state, can send the signal, the receiver can send the warning after receiving this signal promptly, its novel structure, small, installation convenient to use.
Description
The utility model is a kind of alarm, is particularly suitable for using in daily life.
Existing small-sized alarm has family expenses, automobile-used etc. dissimilar, and its shortcoming is that the purposes of each alarm is comparatively single, and the scope of application is little, uses inconvenience.
The purpose of this utility model is a kind of remote annunciator of many uses, easy to use of design.
The utility model comprises transmitter and receiver, it is characterized in that transmitter is to be made of oscillator and high frequency transmission circuit that gate circuit constitutes, receiver is to be made of superregenerative detection circuit, amplifying circuit, frequency selection circuit, trigger circuit and sound equipment generation or vibrating circuit.
The utility model novel structure, volume is little, installation, easy to use.Its sensing radiating portion can be installed on the monitored thing, and the wireless receiving part can be with the guardian at one's side.When monitored thing changed its original state, transmitter promptly can send signal, and receiver can send warning immediately.The utility model in use is not subjected to other radio wave interference, good reliability, operating distance is far away, it is of many uses, the function that possesses a tractor serves several purposes, can be used as the usefulness of the burglar alarm of vehicle, door and window or other valuables, also can be used for the network alarm of security department, can also when taking care of infant or patient, old man, use.
Below in conjunction with description of drawings embodiment of the present utility model.
Fig. 1 is the circuit theory diagrams of transmitter among the embodiment;
Fig. 2 is the circuit theory diagrams of receiver among the embodiment.
Among the embodiment, transmitter comprises by inverter F
6, F
7With crystal oscillator JT
2The modulating wave free-running multivibrator that constitutes is connected to the shaping circuit that is made of "NOT" circuit at its output terminal, and by capacitor C
10Be coupled to by triode VT
5And inductance L
2, capacitor C
11, C
12With antenna W
2In the carrier oscillation circuit of forming.In the power circuit of oscillator, be connected with K switch
3The receiver of present embodiment comprises by triode VT
1With receiving antenna W
1The superregenerative detection circuit of forming, at its output terminal by having by "NOT" circuit F
1, F
2, F
3The amplifying circuit of forming, the output terminal of this amplifying circuit is connected on the input end of frequency selector.Said frequency selector is crystal oscillator JT
1Output terminal at frequency selector is connected to by triode VT
2, inverter F
4, F
5The trigger of forming, the output terminal of trigger are connected sound circuit or by triode VT
4, in the vibrating circuit formed of Vib. M.In the sound and vibrating circuit, be connected with the change-over switch K of the control sound and vibration
2Said sound circuit is by ic chip
2, triode VT
3Form with acoustical generator BL.
In the use, receiver power supply is in normally open.When transmitter is subjected to vibrating, the K switch in the circuit
3Connect, circuit is started working, and the carrier wave after the modulation is passed through printed antenna W
2To aerial emission.Crystal oscillator JT in the utility model transmitter
2With the crystal oscillator JT in the receiver
1Frequency be corresponding.Receiving antenna W in receiver
1After receiving the electromagnetic wave that transmitter sends, through triode VT
1The detection demodulation is then through resistance R
2, capacitor C
7Be coupled to by inverter F
1, F
2, F
3In the amplification and rectification circuit that constitutes, if its signal frequency and crystal oscillator JT
1Resonance, then its impedance is very low, thereby enters triode VT smoothly
2, then can't pass through because impedance is very high to other interference noises.Enter into triode VT
2Signal through amplifying by inverter F
4, F
5Trigger acoustics circuit IC after the shaping
2Or Vib., thereby send chimes of doom or produce vibration to notify the guardian.The operating distance of present embodiment 〉=30 meter, if increase antenna, operating distance can be multiplied.
Claims (4)
1, a kind of multifunction remote-control alarm, comprise transmitter and receiver, it is characterized in that transmitter is to be made of oscillator and high frequency transmission circuit that gate circuit constitutes, receiver is to be made of superregenerative detection circuit, amplifying circuit, frequency selection circuit, trigger circuit and sound equipment generation or vibrating circuit.
2,, it is characterized in that transmitter comprises by inverter F according to the described remote annunciator of claim 1
6, F
7With crystal oscillator JT
2The modulating wave free-running multivibrator that constitutes is connected to the shaping circuit that is made of "NOT" circuit at its output terminal, and by capacitor C
10Be coupled to by triode VT
5And inductance L
2, capacitor C
11, C
12With antenna W
2In the carrier oscillation circuit of forming, in the power circuit of oscillator, be connected with K switch
3Receiver comprises by triode VT
1With receiving antenna W
1The superregenerative detection circuit of forming is connected to by "NOT" circuit F at its output terminal
1, F
2, F
3The amplifying circuit of forming, the output terminal of this amplifying circuit is connected on the input end of frequency selector, is connected to by triode VT at the output terminal of frequency selector
2, inverter F
4, F
5The trigger of forming, the output terminal of trigger are connected sound circuit or by triode VT
4, in the vibrating circuit formed of Vib. M, in the sound and vibrating circuit, be connected with the change-over switch K of the control sound and vibration
2
3,, it is characterized in that said sound circuit is by ic chip according to claim 1 or 2 described remote annunciators
2, triode VT
3Form with acoustical generator BL.
4,, it is characterized in that said frequency selector is crystal oscillator JT according to claim 1 or 2 described remote annunciators
1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98221984 CN2336414Y (en) | 1998-07-31 | 1998-07-31 | Multifunctional remote control alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98221984 CN2336414Y (en) | 1998-07-31 | 1998-07-31 | Multifunctional remote control alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2336414Y true CN2336414Y (en) | 1999-09-01 |
Family
ID=33973423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98221984 Expired - Fee Related CN2336414Y (en) | 1998-07-31 | 1998-07-31 | Multifunctional remote control alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2336414Y (en) |
-
1998
- 1998-07-31 CN CN 98221984 patent/CN2336414Y/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 | ||
| 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 |