CN2103168U - Infrared alarm device - Google Patents
Infrared alarm device Download PDFInfo
- Publication number
- CN2103168U CN2103168U CN 91222439 CN91222439U CN2103168U CN 2103168 U CN2103168 U CN 2103168U CN 91222439 CN91222439 CN 91222439 CN 91222439 U CN91222439 U CN 91222439U CN 2103168 U CN2103168 U CN 2103168U
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- pin
- infrared
- assembly
- transistor
- circuit
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- 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.)
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The utility model provides an infrared alarm device which belongs to the alarm device. The infrared alarm device comprises a transmitting part and a receiving part, wherein, front pulse signals of 5 to 8 kilohertz produced by the transmitting part can give infrared ray luminous beams through an infrared transmitting tube D 1; after an infrared receiving tube D 2 of the receiving part receives infrared optical wave, the infrared optical wave through enlargement and conversion is sent to an audio component to be output in order to push a loudspeaker SP to make a sound. After the utility model appears and is installed in key departments, the labor intensity of doorkeepers is lightened, and the vigilance of the doorkeepers is enhanced. The utility model has the advantages of simple structure, convenient operation and installation, and high reliability.
Description
The utility model belongs to warning device.
Entrance guard personnel for key departments, especially some warehouses such as some offices and warehouses need watch the gateway with the utmost concentration attentively, prevent that unrelated person from entering.Because gateway whether messenger all needs the entrance guard personnel to pay close attention to, and has so just increased entrance guard personnel's labour intensity, as the entrance guard be a people just feel very inconvenient, do not note slightly just may bringing bad result.
The key departments of coming in and going out just can send acoustic signal as long as the purpose of this utility model provides a kind of people of having, the device of reminding the entrance guard to note.
The utility model comprises radiating portion and receiving unit; Constitute two Sheffer stroke gate assembly G of radiating portion oscillator
1Output pin connects the transistor Tr base stage that is used to drive, the emitter of transistor Tr and infrared transmitting tube D
1Join; Receiving unit is made of receiving circuit, change-over circuit, acoustics circuit, the elementary and infrared receiving tube D of the audio frequency coupling transformer T of receiving circuit
2Join T cascade prime amplifier of audio frequency coupling transformer assembly G
2The input end pin, prime amplifier assembly G
2The output terminal foot meridian capacitor connect transistor Tr
2Base stage, transistor Tr
2The current collection level is to the hex inverter assembly G of change-over circuit
3One input end pin, hex inverter assembly G
3Final stage two output terminal pin one tunnel meet the transistor Tr that links to each other with LED
3Base stage, another road liaison rings circuit unit G
4Control end, acoustics circuit assembly G
4Output terminal is through amplifier block G
5Meet loudspeaker SP.
The utility model is installed to key departments after occurring, and has not only alleviated entrance guard's labour intensity, and has improved entrance guard's vigilance performance.It is simple in structure, installation, easy to use, dependable performance, and operating distance can reach 8-10 rice.
Description of drawings:
Fig. 1 is radiating portion circuit theory diagrams of the present utility model.
Fig. 2 is receiving unit circuit theory diagrams of the present utility model.
Can find out that from accompanying drawing the oscillator of radiating portion is by 42 input nand gate integrated circuit package G
1(model is CD4011) configuration Resistor-Capacitor Unit constitutes, and can produce the pulse signal of 5-8 KHz, after the one-level Sheffer stroke gate is isolated, send transistor Tr
1Amplify, drive infrared transmitting tube D
1(model is LTE-4208C) produces infrared light beam.Receiving circuit infrared receiving tube D when receiving unit
2After (model is LTR-536AB) receives infrared waves, send prime amplifier integrated circuit package G by audio frequency coupling transformer T
2(model is HA1451) and transistor Tr
2After the amplification, again through hex inverter assembly G
3(model is CD4069) paraphase and integration become DC voltage.The hex inverter assembly G of change-over circuit
3The resistance R that input end 3 pin are connected in parallel
5And capacitor C
5Constitute integrator, output terminal 2 pin are through diode D
3Connect input end 3 pin.Hex inverter assembly G
3Output terminal 10 pin connect the transistor Tr that is used to detect
3Base stage is with transistor Tr
3The LED that links to each other of collector, S connects power supply through the second gear switch, for the detection of not having when blocking duty.Hex inverter assembly G
3Output terminal 12 pin meet acoustics circuit assembly G
4Trigger end, when blocking, trigger it and send and simulate the audible component G that barks
4(model is KD5608).Switch S can make bright day of LED and not produce the sound of barking when detecting; During duty, have shelter to send and bark, and LED does not work.Switch S during the position, is blocked the luminous infrared beam of radiating portion as the people, then six anti-phase assembly G in working order
3The 12nd pin uprises level by low level, thereby triggers the sound sheet KD5608 that barks, and sends the signal of barking, and this signal is through power amplifier assembly G
5After (model is TDA2003) amplifies, promote loudspeaker SP and send the sound, reminds people is noted.R among the figure is a resistance, and C is an electric capacity.
Claims (2)
1, a kind of infrared warning device is made of radiating portion and receiving unit, it is characterized in that constituting two Sheffer stroke gate assembly G of radiating portion oscillator
1Output pin connects the transistor Tn base stage that is used to drive, the emitter of transistor Tn and infrared transmitting tube D
1Join; Receiving unit is made of receiving circuit, change-over circuit, acoustics circuit, the elementary and infrared receiving tube D of the audio frequency coupling transformer T of receiving circuit
2Join T cascade prime amplifier of audio frequency coupling transformer assembly G
2The input end pin, prime amplifier assembly G
2The output terminal foot meridian capacitor connect transistor Tn
2Base stage, transistor Tr
2The current collection level is to the hex inverter assembly G of change-over circuit
3One input end pin, hex inverter assembly G
3Final stage two output terminal pin one tunnel meet the transistor Tn that links to each other with LED
3Base stage, another road liaison rings circuit unit G
4Control end, acoustics circuit assembly G
4Output terminal is through amplifier block G
5Meet loudspeaker SP.
2,, it is characterized in that the hex inverter assembly G of change-over circuit according to the described warning device of claim 1
3The resistance R that input end 3 pin are connected in parallel
5And capacitor C
5Constitute integrator, output terminal 2 pin are through diode D
3Connect input end 3 pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91222439 CN2103168U (en) | 1991-11-04 | 1991-11-04 | Infrared alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91222439 CN2103168U (en) | 1991-11-04 | 1991-11-04 | Infrared alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2103168U true CN2103168U (en) | 1992-04-29 |
Family
ID=4929308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91222439 Granted CN2103168U (en) | 1991-11-04 | 1991-11-04 | Infrared alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2103168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074089A (en) * | 2011-01-07 | 2011-05-25 | 华南理工大学 | Active infrared anti-theft alarm |
-
1991
- 1991-11-04 CN CN 91222439 patent/CN2103168U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074089A (en) * | 2011-01-07 | 2011-05-25 | 华南理工大学 | Active infrared anti-theft alarm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |