CN2314547Y - Self controlling lamp - Google Patents
Self controlling lamp Download PDFInfo
- Publication number
- CN2314547Y CN2314547Y CN 97227038 CN97227038U CN2314547Y CN 2314547 Y CN2314547 Y CN 2314547Y CN 97227038 CN97227038 CN 97227038 CN 97227038 U CN97227038 U CN 97227038U CN 2314547 Y CN2314547 Y CN 2314547Y
- Authority
- CN
- China
- Prior art keywords
- relay
- amplifier
- comparator
- delay
- power supply
- 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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Abstract
The utility model relates to a self-controlling lamp which is composed of a sensing detector, a control device, a bulb, a constant voltage power supply and a transfer switch. Through two-stage magnification of an amplifier, weak infrared signals from the human body inducted by an infrared sensor of the sensing detector are sent to a comparator for comparing, and conducting or cutoff of a transistor is controlled by the outputted signals. The turn on and off of a relay is driven, and therefore, on-off of the power source is controlled. The delay cutoff of a control relay J is controlled through a delay circuit which is composed of a resistor and a capacitor, and therefore, time-delayed automatic control for lamp switching off is realized. The self-controlling lamp has the advantages of high dependability and good stability.
Description
The utility model belongs to a kind of lighting, especially a kind of automatic controlling lamp.
Existing automatic controlling lamp, its infrared sensing switch are to adopt electric capacity directly from 220 volts of alternating current step-downs, provide low-voltage dc power supply through the voltage stabilizing rectification, and the controllable silicon electronic switch, are easy to generate the voltage breakdown phenomenon, have the poor problem of reliability and stability.
The purpose of this utility model is to overcome the deficiencies in the prior art, and the automatic controlling lamp of a kind of reliability height, good stability is provided.
The utility model can be realized by following technical solution: it is made up of sensing detection device 1, controller 2, bulb 3, stabilized voltage power supply 4 and change over switch 5.The infrared ray sensor VB of its sensing detection device 1 will sense faint human body infrared signal, be input to amplifier IC
2-1, IC
2-2Two-stage is sent by amplifier IC after amplifying
2-3, IC
2-4The comparator of forming compares, the resistance R in the signal via controller 2 of comparator output
5, R
6Control triode T after the dividing potential drop, thus drive relay J work, by the contact K of the open and close control relay J of relay J
2Realize the break-make of power supply, resistance R
2, capacitor C
2Form delay circuit, be connected to amplifier IC
2-2Input control amplifier IC
2-2With comparator time-delay upset, i.e. after the output of comparator became low level from the high level time-delay, triode T ended, and relay J discharges, contact K
2Disconnect, realize delaying time and turn off the light.
The advantage of the utility model contrast prior art is: because of the action part employing relay of controller, so the reliable in action of execution switch, stable, cost is low.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the utility model circuit theory diagrams.
The utility model is described in further detail below in conjunction with drawings and Examples:
Among the figure, 1 is the sensing detection device, and 2 is controller, and 3 is bulb, and 4 is stabilized voltage power supply, and 5 is change over switch, and B is a transformer, IC
2-1, IC
2-2, IC
2-3, IC
2-4Be amplifier, J is a relay, and VB is an infrared ray sensor, R
2, R
5, R
6Be resistance, R is photo resistance, C
2Be electric capacity, T is a triode, K
2Contact for relay J.
Referring to Fig. 2, the infrared ray sensor VB of sensing detection device 1 (the employing LHi878 of VB) will sense faint human body infrared signal, be input to amplifier IC
2-1, IC
2-2(amplifier IC
2-1, IC
2-2, comparator IC
2-3, IC
2-4All adopt the LM324 integrated circuit) after two-stage amplifies, send by amplifier IC
2-3, IC
2-4The comparator of forming compares, resistance R in the signal via controller 2 of comparator output
5, R
6Control triode T after the dividing potential drop, thus drive relay J work, by the contact K of the open and close control relay J of relay J
2Realize the break-make of power supply, resistance R
2, capacitor C
2Form delay circuit, be connected to amplifier IC
2-2Input control amplifier IC
2-2With comparator time-delay upset.Be that triode T ended after the output of comparator became low level from high level time-delay, relay J discharges, contact K
2Disconnect, realize delaying time and turn off the light.
In the time will manually using, change over switch 5 is pushed manual position.When change over switch 5 pushed automated location, this lamp was in the automatic measuring and controlling operating state.220 volts of transformer B primary coils that add stabilized voltage power supply 4 of civil power are exported to sensing detection device, amplifier, the triode of controller 2 and are made the work power supply after voltage stabilizing, the infrared ray sensor VB of sensing detection device 1 will sense human body signal through IC
2-1, IC
2-2Two-stage is amplified back output, to the input of comparator.Because the bright by day resistance of photo resistance R is low, is equivalent to the signal shorted to earth, voltage comparator ic
2-3, IC
2-4Still export electronegative potential, triode T closes, relay coil no current, contact K
2Not adhesive, bulb 3 does not work; Night, the photoresistance height, when human body moves, the light-controlled electronic K switch
1Automatically open, sensing detection device 1 induced signal is effective, triode T conducting, and the relay J coil has electric current to pass through, contact K
2Adhesive, bulb is bright.When the people leaves or stops action, the induced signal of infrared ray sensor VB, amplifier IC
2-1Output low level, voltage comparator output this moment high potential, C
2Pass through R
2The discharge time-delay, after 1-3 minute, the comparator output low level, triode ends, and relay J coil no current passes through, contact K
2Discharge, bulb extinguishes, and realizes that the people is bright to lamp, the purpose that the people puts out certainly from the lamp time-delay.
Claims (1)
1, a kind of automatic controlling lamp, form by sensing detection device (1), controller (2), bulb (3), stabilized voltage power supply (4) and change over switch (5), it is characterized in that: the infrared ray sensor (VB) of sensing detection device (1) will be sensed faint human body infrared signal, be input to amplifier (IC
2-1, IC
2-2) after two-stage amplifies, give by amplifier (IC
2-3, IC
2-4) comparator formed compares the resistance (R in the signal via controller 2 of comparator output
5, R
6) control triode (T) after the dividing potential drop, thus drive relay (J) work, by the contact (K of the open and close control relay (J) of relay (J)
2) realize the break-make of power supply, resistance (R
2), electric capacity (C
2) form delay circuit, be connected to amplifier (IC
2-2) and input control amplifier (IC
2-2), comparator time-delay upset.Be that triode (T) ended after the output of comparator became low level from high level time-delay, relay (J) discharges, contact (K
2) disconnect, realize delaying time and turn off the light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97227038 CN2314547Y (en) | 1997-09-20 | 1997-09-20 | Self controlling lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97227038 CN2314547Y (en) | 1997-09-20 | 1997-09-20 | Self controlling lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2314547Y true CN2314547Y (en) | 1999-04-14 |
Family
ID=33940575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97227038 Expired - Fee Related CN2314547Y (en) | 1997-09-20 | 1997-09-20 | Self controlling lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2314547Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101692605B (en) * | 2009-09-22 | 2012-09-12 | 成爱林 | Circuit of pyroelectric infrared-sensing type switch |
-
1997
- 1997-09-20 CN CN 97227038 patent/CN2314547Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101692605B (en) * | 2009-09-22 | 2012-09-12 | 成爱林 | Circuit of pyroelectric infrared-sensing type switch |
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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 |