CN203232550U - Humidity sensitive detection alarm device - Google Patents
Humidity sensitive detection alarm device Download PDFInfo
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- CN203232550U CN203232550U CN2013200094739U CN201320009473U CN203232550U CN 203232550 U CN203232550 U CN 203232550U CN 2013200094739 U CN2013200094739 U CN 2013200094739U CN 201320009473 U CN201320009473 U CN 201320009473U CN 203232550 U CN203232550 U CN 203232550U
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Abstract
The utility model relates to the electrology technical field, and especially refers to a humidity sensitive detection alarm device. The device comprises a humidity sensitive sensor, a delay amplification circuit, an alarm circuit and a power circuit; the delay amplification circuit comprises transistors, a diode, a charging capacitor, a potentiometer and relative peripheral components; the alarm circuit comprises a voice integration circuit, an audio frequency amplifier tube, a loudspeaker and peripheral capacitance-resistant components; and the power circuit comprises a power switch, a power source and a filter capacitor. The humidity sensitive detection alarm device is simple in structure, less in power consumption, small in size, low in cost, reliable in alarming, is adjustable in alarm delay time, and is suitable for life non-applicable people like aged people, people with poor health, infants, disables, and patients.
Description
Technical field
The utility model relates to the electroporation field, especially a kind of wet quick detection alarm instrument.
Background technology
At present, the personage that many old, infants, disabled person, patient etc. can't take care of oneself, when they because the urinary incontinence, in the time of again can not be by speech or action notice care-giver, can cause them to be soaked by urine, even can cause diseases such as exanthemv, even used cloth sheet or " diaper ", they also can only stand the misery of being soaked by urine for a long time, moreover the hydroscopicity of " diaper " is too strong, the meeting absorption contacts the moisture on the skin, causes local skin too dry and unbalance.
Summary of the invention
The purpose of this utility model is in order to solve the problems of the technologies described above, to provide a kind of simple in structure, little power consumption, and volume is little, and cost is low, a kind of Humidity Detection alarm of reliable alarm, the purpose of reporting to the police automatically when reaching the urinary incontinence.
The technical scheme that adopts of the present utility model is achieved in that a kind of wet quick detection alarm instrument, and electronic equipment and operating circuit are arranged, and electronic equipment comprises moisture sensor, and operating circuit comprises warning circuit, postpones amplifying circuit and power circuit.
Described moisture sensor is a kind of resistance moisture sensor, and it is made up of humidity-sensitive element and change-over circuit, and whether the resistance R 1 that moisture sensor two ends lead connects, the variation of R2 absorb the moisture content decision by moisture sensor.
Described delay amplifying circuit comprises transistor, diode, charging capacitor, potentiometer, wherein, resistance R 1, R2 respectively with silicon NPN transistor V1, the V2 base stage connects, the transmission electric wave signal, moisture sensor conduction during bed-wetting, silicon NPN transistor V2 cathode potential is higher than anode potential and ends, silicon NPN transistor V1 cathode potential is lower than the anode potential conducting, lead between silicon NPN transistor V2 emitter and the switching diode VD base stage is connected to SMD potentiometer RP, the inner end of aluminium electrolutic capacitor C1, aluminium electrolutic capacitor C1, the outer end of SMD potentiometer RP all is connected on the power circuit, and the conducting of transmission electric wave signal is connected the silicon NPN transistor V3 behind the switching diode.
Described warning circuit comprises speech IC, audio-frequency amplifier tube, loudspeaker and peripheral Resistor-Capacitor Unit, wherein, the integrated utmost point of silicon NPN transistor V3 is connected to TRI port in the speech IC after connecting resistance R 4 by lead, negative pole VSS directly connects power cathode in speech IC, OSC is connected on resistor R4 and the high frequency ceramic capacitor C2 central conductor, connect positive source, the O/P end is connected with silicon NPN transistor V4 base stage, and the silicon NPN transistor V4 radiation utmost point is connected with miniature electric formula loudspeaker BL.
Described power circuit comprises power switch, power supply and filter capacitor C3, and wherein, power switch is connected the power positive end lead, and filter capacitor C3 is connected in the circuit at power positive cathode two ends.
A kind of wet quick detection alarm instrument of the utility model is simple in structure, little power consumption, and volume is little, and cost is low, and it is reliable to report to the police, and alarm delay time is adjustable, reports to the police automatically in the time of realizing the urinary incontinence.
Description of drawings
Fig. 1 is the circuit diagram of a kind of wet quick detection alarm instrument of the utility model
Among the figure: RH is moisture sensor;
R1-R4 is the 1/8W resistor;
RP is SMD potentiometer;
C1 is aluminium electrolutic capacitor, and C2 is high frequency ceramic capacitor, and C3 is filter capacitor;
VD is switching diode;
VI-V4 is the silicon NPN transistor;
IC is speech IC;
BL is the miniature electric formula machine of raising one's voice.
Embodiment
With reference to the accompanying drawings 1, a kind of wet quick detection alarm instrument, it comprises: moisture sensor, postpone amplifying circuit, warning circuit and power circuit are formed, moisture sensor RH two ends connect resistor R1 with lead, be connected respectively to the silicon NPN transistor V1 that postpones amplifying circuit behind the R2, the base stage of V2, the lead that connects between the emitter of silicon NPN transistor V2 and the SMD potentiometer RP is connected to the switching diode VD that is connected with aluminium electrolutic capacitor C1, switching diode VD back connects silicon NPN transistor V3 base stage, silicon NPN transistor V3 emitter is connected in the power circuit, the integrated utmost point is connected to the TRI end of the speech IC IC that is connected with a resistor R4, the VSS end connects power supply GB circuit negative pole in speech IC IC simultaneously, the OSC end is connected in the circuit of a resistor R3 and high frequency ceramic capacitor C2, vdd terminal is connected to power supply GB circuit anode, the O/P end is connected to silicon NPN transistor V4 base stage, its emitter is connected to the power supply GB positive pole that power switch S is housed by connecting miniature electric formula loudspeaker BL, and then the integrated utmost point connects the power supply GB negative pole of the filter capacitor C3 that is connected with both ends of power.
During work, behind the connection power switch S, power supply GB provides operating voltage for entire circuit, when not wetting the bed, the resistance value of resistor R1, the R2 at moisture sensor RH two ends is almost infinitely great, and silicon NPN transistor V1 place base potential is constant, makes the V1 can't conducting, and the extreme cathode potential of silicon NPN transistor V2 two N is lower than anode potential, make the V2 conducting, switching diode VD base potential is raised, and silicon NPN transistor V3 ends, back speech IC IC does not work, and loudspeaker BL is sounding not.In case when wetting the bed, moisture sensor RH two ends become low resistive state because of the urine conduction by high-impedance state, voltage just can pass through moisture sensor RH, making silicon NPN transistor V2 cathode potential be higher than anode potential ends, silicon NPN transistor V1 cathode potential is lower than the anode potential conducting, power supply GB voltage is through the aluminium electrolutic capacitor CI charging of SMD potentiometer RP, after charging finishes, switching diode VD and silicon NPN transistor V3 conducting in succession, speech IC IC is triggered and is worked, from speech IC IC output " I urinate wet " voice signal, this signal promotes miniature electric formula loudspeaker BL and sends the voice reminder of " I urinate wet " after silicon NPN transistor V4 amplifies.The personage that the wet quick detection alarm instrument of the utility model is applicable to is old, infant, disabled person, patient etc. can't take care of oneself.
Claims (3)
1. wet quick detection alarm instrument, electronic equipment and operating circuit are arranged, it is characterized in that: electronic equipment comprises moisture sensor, moisture sensor two ends lead connects resistance R 1, resistance R 2, operating circuit comprises warning circuit, postpone amplifying circuit and power circuit, described warning circuit comprises speech IC, audio-frequency amplifier tube, loudspeaker and peripheral Resistor-Capacitor Unit, wherein, the integrated utmost point of silicon NPN transistor V3 is connected to TRI port in the speech IC after connecting resistance R 4 by lead, negative pole VSS directly connects power cathode in speech IC, OSC is connected on resistor R4 and the high frequency ceramic capacitor C2 central conductor, connect positive source, the O/P end is connected with silicon NPN transistor V4 base stage, the silicon NPN transistor V4 radiation utmost point is connected with miniature electric formula loudspeaker BL, described delay amplifying circuit comprises transistor, diode, charging capacitor, potentiometer, wherein, resistance R 1, resistance R 2 respectively with silicon NPN transistor V1, silicon NPN transistor V2 base stage connects, lead between silicon NPN transistor V2 emitter and the switching diode VD base stage is connected to SMD potentiometer RP, the inner end of aluminium electrolutic capacitor C1, aluminium electrolutic capacitor C1, the outer end of SMD potentiometer RP all is connected on the power circuit, connect silicon NPN transistor V3 behind the actuating switch diode VD, described power circuit comprises power switch, power supply and filter capacitor C3, wherein, power switch is connected the power positive end lead, and filter capacitor C3 is connected in the circuit at power positive cathode two ends.
2. a kind of wet quick detection alarm instrument according to claim 1, it is characterized in that: described moisture sensor is a kind of resistance moisture sensor, and it is made up of humidity-sensitive element and change-over circuit.
3. a kind of wet quick detection alarm instrument according to claim 1, it is characterized in that: conduction when described moisture sensor is wet the bed, silicon NPN transistor V2 cathode potential is higher than anode potential and ends, and silicon NPN transistor V1 cathode potential is lower than the anode potential conducting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200094739U CN203232550U (en) | 2013-01-07 | 2013-01-07 | Humidity sensitive detection alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200094739U CN203232550U (en) | 2013-01-07 | 2013-01-07 | Humidity sensitive detection alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203232550U true CN203232550U (en) | 2013-10-09 |
Family
ID=49288658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200094739U Expired - Fee Related CN203232550U (en) | 2013-01-07 | 2013-01-07 | Humidity sensitive detection alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203232550U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103942927A (en) * | 2014-05-13 | 2014-07-23 | 德阳市第二人民医院 | Wetting sensitive alarm device based on ward calling system |
| CN104374884A (en) * | 2014-12-04 | 2015-02-25 | 成都深思科技有限公司 | Humidity detection alarm for industrial factory buildings |
-
2013
- 2013-01-07 CN CN2013200094739U patent/CN203232550U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103942927A (en) * | 2014-05-13 | 2014-07-23 | 德阳市第二人民医院 | Wetting sensitive alarm device based on ward calling system |
| CN104374884A (en) * | 2014-12-04 | 2015-02-25 | 成都深思科技有限公司 | Humidity detection alarm for industrial factory buildings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20140107 |