CN205505298U - Bathroom smell detection and automatic breather - Google Patents
Bathroom smell detection and automatic breather Download PDFInfo
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- CN205505298U CN205505298U CN201620114251.7U CN201620114251U CN205505298U CN 205505298 U CN205505298 U CN 205505298U CN 201620114251 U CN201620114251 U CN 201620114251U CN 205505298 U CN205505298 U CN 205505298U
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Abstract
The utility model discloses a bathroom smell detection and automatic breather. Gas sensor is connected with ADC0809, and the singlechip is connected with ADC0809, and the singlechip has a pin and a smell detection circuit connection, and when the gas strength that detects as gas sensor exceeded the setting value, this pin output produced the too big signal of smell for the high level. The singlechip has a pin to be connected through amplifier circuit and relay coil in addition, and when the gas strength that detects when the sensor exceeded the setting value, this pin output was the high level, enlargies through amplifier circuit, and it is electric to make relay coil get, and the normally open contact who concatenates in the scavenger fan circuit is closed to start the scavenger fan and take a breath, purify the bathroom air, when the gas strength that detects as gas sensor was less than the setting value, this pin output was for low level, relay coil loses the electricity, and the normally open contact who concatenates in the scavenger fan circuit breaks off, and the scavenger fan cuts out, stops to take a breath. The device is with low costs, the detection is convenient and can realize automatic taking a breath.
Description
Technical field
The open a kind of toilet odor detection of this utility model and automatic air interchanger.Belong to daily living article field.
Background technology
Along with the economic and development of society, people are more and more higher to the requirement of working environment, living environment and domestic environment, the different always the most scabrous problem of elimination automatically hidden of toilet, the present invention is that toilet abnormal smells from the patient carries out detecting and the device of automatic air-exchanging, can carry out toilet harmful gas reporting to the police and energy automatic air-exchanging, make the environment of toilet be improved.
Summary of the invention
This utility model provides a kind of low cost, the easy to detect and toilet odor detection of energy automatic air-exchanging and the device of automatic air-exchanging.
In order to realize above-mentioned target, the device of toilet odor detection and automatic air-exchanging be the technical scheme is that and is mainly made up of parts such as gas sensor, A/D change-over circuit, single-chip microcomputer, amplifying circuit, odorousness indicating circuit, relay, ventilation fan circuit by this utility model, it is characterized in that gas sensor is connected with ADC0809, single-chip microcomputer is connected with ADC0809, single-chip microcomputer has a pin to be connected with odor detection circuit, when the gas concentration that gas sensor detects exceedes setting value, this pin is output as high level and produces the excessive signal of abnormal smells from the patient.In addition, single-chip microcomputer separately has an amplified circuit of pin to be connected with relay coil, when the gas concentration that gas sensor detects exceedes setting value, this pin is output as high level, and amplified circuit amplifies, and makes relay coil obtain electric, now, the relay normally open contact Guan Bi being serially connected in ventilation fan circuit, thus start ventilation fan ventilation, purify toilet air.
Described gas sensor is arranged in toilet, acquisition institute detected gas signal is directly contacted with toilet gas, by data acquisition circuit, detection signal is carried out preliminary treatment, via A/D change-over circuit, measured signal is passed to single-chip microcomputer, through single-chip microcomputer compare with set desired value and make corresponding instruction, when the signal that gas sensor detects exceedes desired value, this pin is output as high level, display lamp is lit, show that toilet abnormal smells from the patient is excessive, when the signal of gas sensor detection is not above desired value, this pin is output as low level, display lamp does not works, show that toilet odorousness is little.
Described single-chip microcomputer separately has an amplified circuit of pin to be connected with relay coil, when the gas concentration that gas sensor detects exceedes setting value, this pin is output as high level, amplified circuit amplifies, relay coil is made to obtain electric, now, the relay normally open contact Guan Bi being serially connected in ventilation fan circuit, thus start ventilation fan ventilation, purify toilet air；When the signal of gas sensor is not above desired value, representing that toilet odorousness is the highest, pin is low level, relay coil dead electricity, and the relay normally open contact being serially connected in ventilation fan circuit disconnects, and ventilation fan stops ventilation.
Described single-chip microcomputer uses AT89S52.
Described employing ammonia, hydrogen sulfide etc. constitute gas sensor array to six gas sensors TGS825, TGS826, TGS813, TGS822, TGS4161, TGS2602 of toilet gas sensitization.
Described A/D conversion element uses ADC0809.
Operation principle: the device of toilet odor detection and automatic air-exchanging uses highly sensitive to ammonia, the gas sensor of the gas sensitizations such as hydrogen sulfide is to gas information in toilet, the digital-to-analogue conversion of signal is carried out by A/D change-over circuit, by the process of single-chip microcomputer, when gas sensor detection signal exceedes desired value, represent that toilet odorousness is excessive by display lamp, simultaneously, single-chip microcomputer output ventilation fan enabling signal is high level, the amplified circuit of this signal amplifies, relay coil is made to obtain electric, now, the relay normally open contact Guan Bi being serially connected in ventilation fan circuit, thus start ventilation fan ventilation, purify toilet air；When the signal of gas sensor is not above desired value, represent that the odorousness in toilet is the highest, display lamp does not works, and, single-chip microcomputer output ventilation fan enabling signal is low level, relay coil dead electricity, now, the relay normally open contact being serially connected in ventilation fan circuit disconnects, and ventilation fan stops ventilation.
Accompanying drawing explanation
Fig. 1 theory diagram of the present utility model.
Fig. 2 electrical schematic diagram of the present utility model.
Fig. 3 ADC0809 of the present utility model gas sensor signal sample circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiment of the present invention is described further:
A kind of toilet abnormal smells from the patient is detected and the device of automatic air-exchanging, the part composition such as including gas sensor, A/D change-over circuit, single-chip microcomputer, amplifying circuit, odor detection circuit, relay, ventilation fan circuit, it is characterized in that gas sensor is connected with ADC0809, single-chip microcomputer is connected with ADC0809, single-chip microcomputer has a pin to be connected with odor detection circuit, when the gas concentration that sensor detects exceedes setting value, this pin is output as high level and produces the excessive signal of abnormal smells from the patient.In addition, single-chip microcomputer separately has an amplified circuit of pin to be connected with relay coil, when the gas concentration that gas sensor detects exceedes setting value, this pin is output as high level, and amplified circuit amplifies, and makes relay coil obtain electric, now, the relay normally open contact Guan Bi being serially connected in ventilation fan circuit, thus start ventilation fan ventilation, purify toilet air.
Gas sensor is arranged in toilet, acquisition institute detected gas signal is directly contacted with toilet gas, by data acquisition circuit, detection signal is carried out preliminary treatment, via A/D change-over circuit, measured signal is passed to single-chip microcomputer, through single-chip microcomputer compare with set desired value and make corresponding instruction, when the signal that gas sensor detects exceedes desired value, this pin is output as high level, display lamp is lit, show that toilet abnormal smells from the patient is excessive, when the signal of gas sensor detection is not above desired value, this pin is output as low level, display lamp does not works, show that toilet odorousness is little.
Single-chip microcomputer separately has an amplified circuit of pin to be connected with relay coil, when the gas concentration that gas sensor detects exceedes setting value, this pin is output as high level, amplified circuit amplifies, relay coil is made to obtain electric, now, the relay normally open contact Guan Bi being serially connected in ventilation fan circuit, thus start ventilation fan ventilation, purify toilet air；When the signal of gas sensor is not above desired value, representing that toilet odorousness is the highest, pin is low level, relay coil dead electricity, and the relay normally open contact being serially connected in ventilation fan circuit disconnects, and ventilation fan stops ventilation.
Embodiment
1
This utility model uses six sensors of gas sensor TGS825, TGS826, TGS813, TGS822, TGS4161, TGS2602 to the harmful gas such as ammonia, hydrogen sulfide is sensitive to constitute gas sensor array, gas sensor is connected with IN0 ~ IN5 pin of ADC0809, as shown in Figure 3, for simplicity, figure only depicts the signals collecting schematic diagram of a road gas sensor.
The sampling resistor of the signal acquisition circuit of gas sensor takes 1K Ω.Single-chip data bus P0 mouth is connected with D0 ~ D7 pin of ADC0809, to carry out data transmission, clock signal is obtained device by ALE leg signal on single-chip microcomputer after four frequency dividings, when selecting the crystal oscillator of 11.0592, the clock frequency of ADC0809 is about 460KHz, and each Channel-shifted time is about 130 μ s.
Single-chip microcomputer P2.0 pin is connected with warning circuit, single-chip microcomputer P2.0 pin is output as high level alarm, it is output as during low level not reporting to the police, audio alarm is that the signal that sensor detects sends too sound when exceeding desired value and reports to the police, and does not send sound when the signal of gas sensor detection is not above desired value；When display lamp warning exceedes desired value for the signal that sensor detects, display lamp is lit and reports to the police, and when the signal of gas sensor detection is not above desired value, action does not occur.
The amplified circuit of single-chip microcomputer P2.7 pin is connected with relay coil, when P2.7 pin is high level, show that single-chip microcomputer exports ventilation fan enabling signal, the amplified circuit of this signal amplifies, relay coil is made to obtain electric, now, the relay normally open contact Guan Bi being serially connected in ventilation fan circuit, thus start ventilation fan ventilation, purify toilet air.
When the detection signal of gas sensor array is less than setting value, representing that the odorousness in toilet is the highest, P2.7 pin is low level, relay coil dead electricity, and now, the relay normally open contact being serially connected in ventilation fan circuit disconnects, and ventilation fan stops ventilation.
Claims (5)
- null1. a toilet odor detection and automatic air interchanger，Main by gas sensor、A/D change-over circuit、Single-chip microcomputer、Amplifying circuit、Odorousness indicating circuit、Relay、Ventilation fan circuit part forms，It is characterized in that gas sensor is connected with ADC0809，Single-chip microcomputer is connected with ADC0809，Single-chip microcomputer has a pin to be connected with odor detection circuit，When the gas concentration that gas sensor detects exceedes setting value，This pin is output as high level and produces the excessive signal of abnormal smells from the patient，Single-chip microcomputer separately has an amplified circuit of pin to be connected with relay coil，When the gas concentration that gas sensor detects exceedes setting value，This pin is output as high level，Amplified circuit amplifies，Relay coil is made to obtain electric，Now，The relay normally open contact Guan Bi being serially connected in ventilation fan circuit，Thus start ventilation fan ventilation.
- Toilet odor detection the most according to claim 1 and the device of automatic air-exchanging, it is characterized in that: described single-chip microcomputer separately has an amplified circuit of pin to be connected with relay coil, when the gas concentration that gas sensor detects exceedes setting value, this pin is output as high level, amplified circuit amplifies, and makes relay coil obtain electric, now, the relay normally open contact Guan Bi being serially connected in ventilation fan circuit, thus start ventilation fan ventilation；When the signal of gas sensor is not above desired value, representing that toilet odorousness is the highest, pin is low level, relay coil dead electricity, and the relay normally open contact being serially connected in ventilation fan circuit disconnects, and ventilation fan stops ventilation.
- 3. toilet odor detection as claimed in claim 1 and the device of automatic air-exchanging, is characterized in that: described single-chip microcomputer uses AT89S52.
- 4. toilet odor detection as claimed in claim 1 and the device of automatic air-exchanging, is characterized in that: use six gas sensors TGS825, TGS826, TGS813, TGS822, TGS4161, TGS2602 to ammonia, hydrogen sulfide toilet gas sensitization to constitute gas sensor array.
- 5. toilet odor detection as claimed in claim 1 and the device of automatic air-exchanging, is characterized in that: described A/D conversion circuit element uses ADC0809.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620114251.7U CN205505298U (en) | 2016-02-04 | 2016-02-04 | Bathroom smell detection and automatic breather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620114251.7U CN205505298U (en) | 2016-02-04 | 2016-02-04 | Bathroom smell detection and automatic breather |
Publications (1)
| Publication Number | Publication Date |
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| CN205505298U true CN205505298U (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620114251.7U Expired - Fee Related CN205505298U (en) | 2016-02-04 | 2016-02-04 | Bathroom smell detection and automatic breather |
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| Country | Link |
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| CN (1) | CN205505298U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267994A (en) * | 2018-04-18 | 2018-07-10 | 中原工学院 | A kind of fully automatic electric sub-controller based on the identification of foul smell peculiar smell |
| CN108469102A (en) * | 2018-04-09 | 2018-08-31 | 广州市赛特检测有限公司 | A kind of Public Geo-space foul smell regulates and controls method and apparatus online |
| CN109270217A (en) * | 2018-09-29 | 2019-01-25 | 江苏芯力特电子科技有限公司 | A kind of scent detector and monitoring method for toilet |
| CN110036246A (en) * | 2016-12-16 | 2019-07-19 | 三菱电机株式会社 | Control device, air exchange system, air interchanger, air exchanging method and program |
-
2016
- 2016-02-04 CN CN201620114251.7U patent/CN205505298U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110036246A (en) * | 2016-12-16 | 2019-07-19 | 三菱电机株式会社 | Control device, air exchange system, air interchanger, air exchanging method and program |
| CN108469102A (en) * | 2018-04-09 | 2018-08-31 | 广州市赛特检测有限公司 | A kind of Public Geo-space foul smell regulates and controls method and apparatus online |
| CN108267994A (en) * | 2018-04-18 | 2018-07-10 | 中原工学院 | A kind of fully automatic electric sub-controller based on the identification of foul smell peculiar smell |
| CN108267994B (en) * | 2018-04-18 | 2024-04-30 | 中原工学院 | Full-automatic electronic controller based on odor and peculiar smell recognition |
| CN109270217A (en) * | 2018-09-29 | 2019-01-25 | 江苏芯力特电子科技有限公司 | A kind of scent detector and monitoring method for toilet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20190204 |