CN2510938Y - Distance alarming instrument - Google Patents
Distance alarming instrument Download PDFInfo
- Publication number
- CN2510938Y CN2510938Y CN 01279120 CN01279120U CN2510938Y CN 2510938 Y CN2510938 Y CN 2510938Y CN 01279120 CN01279120 CN 01279120 CN 01279120 U CN01279120 U CN 01279120U CN 2510938 Y CN2510938 Y CN 2510938Y
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- circuit
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- signal processing
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Abstract
The utility model discloses a distance alarm device, comprising a shell body and a control circuit inserted in the shell body. The front surface of the shell body is provided with a control button and a window, and one side of the shell body is provided with a power plug. The control circuit board inserted in the shell body includes a power circuit, a signal detection circuit, a signal processing circuit and an alarm circuit; The power circuit supplies the working power for the whole electric circuit; The output end of the signal detection circuit is connected with the input end of the signal processing circuit, and the signal output end of the signal processing circuit is connected with the control end of the alarm circuit. When the human body gets over the arranged safety distance, the signal detection circuit outputs the high level and outputs the control signal through the driving and enlarging of the signal processing circuit, which makes the alarm circuit work to notice people keep a distance.
Description
Technical field
The utility model relates to a kind of alarm, the distance alarm instrument of just reporting to the police when referring to a kind of distance when between human body and jobbie less than setting value especially.
Background technology
At present, see similar notice boards such as " please don't be close ", " please keep at a distance " through regular meeting, warn people to keep at a distance and to avoid danger in some public places or by the danger.But, sometimes because people's consciousness is indifferent, distance perspective is not strong, just shortened the distance with danger unawares, so very easily cause danger.
The utility model content
In view of the foregoing, the purpose of this utility model provide a kind of capable of automatic alarm, the prompting the distance alarm instrument.
For achieving the above object, the utility model is taked following design proposal: a kind of distance alarm instrument, and it is made of a housing and the control circuit board that is built in the housing; The front of described housing is provided with control knob and window, and a side of housing is provided with an attaching plug; Described control circuit board comprises power circuit, signal deteching circuit, signal processing circuit and warning circuit; Power circuit provides working power for the entire circuit plate; The output terminal of signal deteching circuit links to each other with the signal input part of signal processing circuit, and the signal output part of signal processing circuit links to each other with the control end of warning circuit.
The utility model signal deteching circuit is made of pyroelectric sensor and electric capacity; The signal output part of pyroelectric sensor links to each other with the signal input part of signal processing circuit by electric capacity.Described pyroelectric sensor is furnished with Fresnel lens, and is installed in the window place of described housing.
The utility model signal processing circuit mainly is made of comparer, triode, resistance, adjustable resistance, electric capacity etc.; Comparer+input end links to each other with the signal output part of signal deteching circuit, comparer-input end is by resistance and electric capacity and be connected in parallel on the adjustable resistance R of both ends of power
vSliding end link to each other, the output terminal of comparer links to each other with the base stage of triode, the collector of triode links to each other with the control end of warning circuit.Warning circuit mainly is made of relay and display lamp; One end of relay coil and power supply+extremely linking to each other, the other end links to each other with the collector of the output terminal triode of described signal processing circuit, the emitter of triode and power supply-extremely link to each other; Display lamp be connected in parallel on both ends of power after the normally opened contact of relay is connected.
Because the utility model adopts above technical scheme, promptly by the distance between pyroelectric sensor human body and the danger, the output control signal makes the utility model reliable operation, sensitivity, and circuit structure is simple.In addition, in the time that human body surpasses the safe distance of setting, pyroelectric sensor output control signal makes warning circuit work, and display lamp flicker, hummer are sounded, and the prompting people note distance, away from danger, really play the purpose of alarm.
The utility model is described in further detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the utility model control circuit board circuit diagram.
Embodiment
The utility model distance alarm instrument is made of a housing and the control circuit board that is built in the housing.The front of housing is provided with a control knob SA1 and a window, and a side of housing is provided with a 220V attaching plug.
As shown in Figure 1, control circuit board comprises power circuit, signal deteching circuit, signal processing circuit and warning circuit; Power circuit provides working power for the entire circuit plate; The output terminal of signal deteching circuit links to each other with the signal input part of signal processing circuit, and the signal output part of signal processing circuit links to each other with the control end of warning circuit.
Power circuit is mainly by formations such as 15V transformer SA2, rectifier bridge T1, three-terminal voltage-stabilizing chip U1 and diode VD2 ~ VD4; The former limit of transformer SA2 links to each other with the 220V power supply by supply socket, its secondary links to each other with rectifier bridge T1, the dc power output end of rectifier bridge T1 links to each other with the input end of 9V voltage stabilizing chip U1, the output terminal of U1 is connected with the control knob SA1 of surface of shell, for the The whole control circuit provides working power.
Signal deteching circuit comprises pyroelectric sensor IC1 (model LN074B) and capacitor C 2, and the signal output part S of IC1 links to each other with the signal input part of signal processing circuit by capacitor C 2.Above-mentioned pyroelectric sensor IC1 is furnished with Fresnel lens, and is installed in the window place of housing.
Signal processing circuit is mainly by comparer IC2, IC3 (model C A3140), triode VT1 ~ VT3, resistance R 1 ~ R10, adjustable resistance R
v, formation such as capacitor C 3 ~ C7.Comparer IC2+input end pin 3 links to each other with the signal output part capacitor C 2 of signal deteching circuit, IC2-the input end pin two links to each other with power cathode with capacitor C 4 by resistance R 4, the output terminal of IC2 is that pin 6 links to each other with the pin 3 of IC3, the pin two of IC3 and the adjustable resistance R that is connected in parallel on both ends of power
vSliding end link to each other, the pin 6 of IC3 links to each other with the base stage of triode VT2, the collector of triode VT2 links to each other with the control end of warning circuit.
Warning circuit mainly is made of relay Z (4098) and display lamp Y.One end of relay Z coil and 9V power supply+extremely linking to each other, the other end links to each other with the collector of VT2, the emitter of VT2 and 9V power supply-extremely link to each other; Display lamp Y be connected in parallel on both ends of power after the normally opened contact of relay Z is connected.
During use, earlier distance alarm instrument attaching plug is inserted in the 220V supply socket, press button SA2, the distance alarm instrument is started working.In the time that human body surpasses the safe distance of regulation (or setting), pyroelectric sensor IC1 exports high level, the pin 3 of IC2 is a high level, and the pin 6 of IC2, the pin 3 of IC3 are high level, and the output pin 6 of IC3 also is a high level, triode VT2 conducting, relay Z coil gets electric, relay Z adhesive, display lamp Y flicker, warning, the prompting people note distance, away from danger.
People can be according to actual conditions, by regulating resistance R
vSet safe distance; Also can in warning circuit, increase speech chip.In the time that human body surpasses the safe distance of regulation (or setting), report to the police by voice mode.
The utility model can be installed in high pressure, poisonous areas such as factory, mine; Also can be installed in by the televisor, prevent that children are too near apart from televisor, cause myopia.
The above only is preferred embodiment of the present utility model, and any equivalent transformation based on technical solutions of the utility model all belongs within the utility model protection domain.
Claims (5)
1. distance alarm instrument is characterized in that: it is made of a housing and the control circuit board that is built in the housing;
The front of described housing is provided with control knob and window, and a side of housing is provided with an attaching plug;
Described control circuit board comprises power circuit, signal deteching circuit, signal processing circuit and warning circuit; Power circuit provides working power for the entire circuit plate; The output terminal of signal deteching circuit links to each other with the signal input part of signal processing circuit, and the signal output part of signal processing circuit links to each other with the control end of warning circuit.
2. distance alarm instrument according to claim 1 is characterized in that: described signal deteching circuit is made of pyroelectric sensor and electric capacity; The signal output part of pyroelectric sensor links to each other with the signal input part of described signal processing circuit by electric capacity.
3. distance alarm instrument according to claim 2 is characterized in that: described pyroelectric sensor is furnished with Fresnel lens, and is installed in the window place of described housing.
4. distance alarm instrument according to claim 1 is characterized in that: described signal processing circuit mainly is made of comparer, triode, resistance, adjustable resistance, electric capacity etc.; Comparer+input end links to each other with the signal output part of described signal deteching circuit, comparer-input end is by resistance and electric capacity and be connected in parallel on the adjustable resistance R of both ends of power
vSliding end link to each other, the output terminal of comparer links to each other with the base stage of triode, the collector of triode links to each other with the control end of warning circuit.
5. distance alarm instrument according to claim 1 is characterized in that: described warning circuit mainly is made of relay and display lamp; One end of relay coil and power supply+extremely linking to each other, the other end links to each other with the collector of the output terminal triode of described signal processing circuit, the emitter of triode and power supply-extremely link to each other; Display lamp be connected in parallel on both ends of power after the normally opened contact of relay is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01279120 CN2510938Y (en) | 2001-12-24 | 2001-12-24 | Distance alarming instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01279120 CN2510938Y (en) | 2001-12-24 | 2001-12-24 | Distance alarming instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2510938Y true CN2510938Y (en) | 2002-09-11 |
Family
ID=33682443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01279120 Expired - Fee Related CN2510938Y (en) | 2001-12-24 | 2001-12-24 | Distance alarming instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2510938Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154347A (en) * | 2015-04-27 | 2016-11-23 | 鸿富锦精密工业(武汉)有限公司 | Distance detection system, vibration prompt circuit and vibration prompt method |
| CN113096351A (en) * | 2021-03-30 | 2021-07-09 | 重庆电子工程职业学院 | Household safety intelligent management system |
-
2001
- 2001-12-24 CN CN 01279120 patent/CN2510938Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154347A (en) * | 2015-04-27 | 2016-11-23 | 鸿富锦精密工业(武汉)有限公司 | Distance detection system, vibration prompt circuit and vibration prompt method |
| CN113096351A (en) * | 2021-03-30 | 2021-07-09 | 重庆电子工程职业学院 | Household safety intelligent management system |
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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 |