CN104635525A - Bathroom air exchange control system - Google Patents
Bathroom air exchange control system Download PDFInfo
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- CN104635525A CN104635525A CN201410670178.7A CN201410670178A CN104635525A CN 104635525 A CN104635525 A CN 104635525A CN 201410670178 A CN201410670178 A CN 201410670178A CN 104635525 A CN104635525 A CN 104635525A
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- gas sensor
- data
- control system
- toilet
- air exchange
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0421—Multiprocessor system
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a bathroom air exchange control system which is used for controlling the on and off of an air exchange fan. An air exchange fan connecting circuit comprises a power supply, a switch and the air exchange fan which are sequentially connected. The control system comprises a controller, and indoor gas sensor and an outdoor gas sensor which are respectively connected with the controller. The indoor gas sensor and the outdoor gas sensor are respectively used for sensing gas data in a bathroom and outdoor atmosphere data and transmitting the data into the controller. The controller turns on or turns off a switch according to the data. By the control system, the air change fan can be turned on according to actual conditions, air exchanging effect is increased, and practicality is achieved.
Description
Technical field
The invention belongs to detection and control field, particularly a kind of control system for improving toilet ventilation effect.
Background technology
Toilet is due to its special purposes, often can give off a peculiar smell, air is muddy, very harmful to health, in order to overcome toilet Problems existing, the mode of usual employing places air freshener in toilet, the chemical products such as deodorant, air freshener is also known as " environment perfume ", by ethanol, essence, the material that deionized water etc. become to be grouped into, by adding a small amount of medicament, chemical reaction is utilized to reach deodorizing object, use the hidden foul smell of strong aromatic substance, therefore, the peculiar smell of indoor can not be removed by normally used air freshener, and be only use a kind of favorable odor type to be covered by peculiar smell, Long-Time Service can cause secondary pollution, the health of harmful to human, deodorant is a kind of aroma type hydrocarbon, and its existing strong volatility, also has certain toxicity, therefore directly serious especially to the injury of human body.
Compare use chemical products, the method that de-tastes conventional at present installs scavenger fan, current normally used scavenger fan has three kinds of working methods: discharge formula, suction-type and also use formula, discharge formula enters air by natural inflow mouth, discharges vitiated air by scavenger fan; Suction-type is by scavenger fan inhale fresh air, discharges vitiated air from natural exhausr port; And be that air-breathing completes by scavenger fan, also known as ventilating fan with exhaust by formula.
Current scavenger fan is widely used in family and public place, its control mode is manually existing, also have automatically, various modified node method for scavenger fan also have a lot, as Chinese Patent Application No. 201220146633.X, name is called that " a kind of toilet exhausting deodorizing device " is generally arranged on the top of ventilation window for current due to vent fan, cause during work, needing foul smell to spread from bottom to top outside discharge chamber, air capacity is very large, the foul smell simultaneously risen is through breath, the situation of human body sensory discomfort, propose to offer flexible pipe connecting pore on the face shield of vent fan, this flexible pipe connecting pore internal fixtion is inserted in one end of flexible pipe, the other end connects straight tube, and described straight tube is fixedly mounted on toilet near the wall of urinal to fit eminence, thus operationally foul smell is sucked straight tube, by straight tube by outside foul smell discharge chamber.
For another example Chinese Patent Application No. 201320103933.4, name are called that " toilet lift pump " is pointed out because existing vent fan blade is less, and the area of toilet is larger comparatively speaking, therefore longer evacuation time is needed, toilet lift pump is improved, the air intake duct that is communicated with perpendicular with straight tube is connected in the lower end of straight tube, and this air intake duct is arranged on the trailing flank of urinal, and suction fan is set at least 10 blades, improve exhaust efficiency by the mode of enhancing wind-force, shortening exhaust passage, ensure the air quality of toilet.
Although above technical scheme can realize its technique effect claimed to a certain extent, but it is generally poor for current air quality, particularly autumn and winter season haze weather generally appearance, if open scavenger fan at this moment to ventilate, not only do not have the air purification effect of anticipation, the haze particle of outdoor can be introduced indoor on the contrary, lose more than gain.Therefore, under the applicable cases generally declined at current environmental condition, should improve accordingly the air exchange system of toilet, realize better ventilation effect.
By above analysis, existing toilet air exchange control system still deposits defect in actual applications, haves much room for improvement.
Summary of the invention
Object of the present invention, be to provide a kind of toilet air exchange control system, it can open scavenger fan according to actual conditions, improves ventilation effect, has more practicality.
In order to reach above-mentioned purpose, solution of the present invention is:
A kind of toilet air exchange control system, for controlling the keying of scavenger fan, described scavenger fan connecting circuit comprises the power supply, switch and the scavenger fan that are linked in sequence; Described control system comprises controller and the indoor gas sensor be attached thereto respectively and outdoor gas sensor, described indoor gas sensor, outdoor gas sensor sense the gas data in toilet, outdoor atmosphere data respectively, and data are sent into controller, described controller is closed or disconnection according to aforementioned data gauge tap.
Above-mentioned controller comprises the A/D change-over circuit, decision circuitry and the control circuit that are linked in sequence, gas sensor and outdoor gas sensor in the input end difference junction chamber of described A/D change-over circuit, after the data sensed respectively carry out A/D conversion, send into decision circuitry and judge; Described decision circuitry comprises 2 comparers, one and door and an XOR gate, wherein, first and second comparer stores gas data threshold value and atmosphere data threshold value respectively, the input end of described first comparer connects the gas data after carrying out A/D conversion, and output terminal connects the first output terminal with the first input end of door and XOR gate respectively; The input end of the second comparer connects the atmosphere data after carrying out A/D conversion, and output terminal connects the second input end with door; Described the second input end being connected XOR gate with the output terminal of door, the input end of the output terminal of XOR gate then connection control circuit, and the output terminal connecting valve of control circuit.
Above-mentioned comparer adopts LM324.
Above-mentioned indoor and outdoor gas sensor all adopts metal-oxide gas sensor.
Above-mentioned controller also connects alarm.
Above-mentioned alarm adopts flashlamp or hummer.
After adopting such scheme, the present invention arranges outdoor gas sensor by increase, by monitoring the atmospheric condition of current outdoor, judge whether to be necessary to open scavenger fan, avoid the air quality in order to improve toilet, introduce the situation that haze is lost more than gain on the contrary, conscientiously improve ventilation effect, have more practicality.
Accompanying drawing explanation
Fig. 1 is integrated stand composition of the present invention;
Fig. 2 is the realizing circuit figure of decision circuitry in the present invention.
Embodiment
Below with reference to accompanying drawing, technical scheme of the present invention is described in detail.
The invention provides a kind of toilet air exchange control system, for improving existing air exchange system, whether scavenger fan being opened and carries out Based Intelligent Control, existing scavenger fan connecting circuit as shown in Figure 1, described scavenger fan connects power supply via switch, and this is existing structure, repeats no more.
As shown in Figure 1, improvement of the present invention is, described control system comprises controller, outdoor gas sensor, indoor gas sensor and alarm, introduces respectively below.
Described outdoor gas sensor is arranged on outdoor, for sensing outdoor State of Air pollution in real time, and data is sent into controller; And indoor gas sensor is arranged in toilet, on the top that specifically can be installed on toilet or wall, for sensing the gas-condition in toilet in real time, and data are sent into controller.Described two gas sensors all can adopt metal-oxide gas sensor.
Described controller receives the gas data of gas sensor sensing in aforementioned compartment and the atmosphere data of outdoor gas sensor sensing respectively, and respectively described data and threshold value are compared analysis, judge whether to need to control scavenger fan, concrete judgement principle is, respectively threshold value is set for gas data and atmosphere data, by judging the size of data and each threshold value sensed, thus draw control command, first the size of gas data in toilet and threshold value is judged, when gas data is higher than threshold value, represent that now air is poor in toilet, need to carry out ventilation in principle to ventilate, then the size judging atmosphere data and threshold value is continued, if atmosphere data is lower than threshold value, represent that now outdoor environment is better, ventilation can be carried out ventilate, controller Closing Switch, start scavenger fan, if atmosphere data is higher than threshold value, represent that now outdoor may exist haze, environment is very poor, ventilation action should not be carried out, controller cut-off switch, do not start scavenger fan, start alarm simultaneously, people are reminded not open scavenger fan.
Described alarm can be arranged on the doorway place of toilet, and flashlamp specifically can be adopted to carry out light flash warning or hummer audible alarm.
In the present embodiment, controller comprises the A/D change-over circuit, decision circuitry and the control circuit that are linked in sequence, shown in composition graphs 2, gas sensor and outdoor gas sensor in the input end difference junction chamber of described A/D change-over circuit, after the data sensed respectively carry out A/D conversion, send into decision circuitry and judge; Described decision circuitry comprises 2 comparer D1, D2, one and a door D3 and XOR gate D4, wherein, the reference value of the first comparer D1 is set to gas data threshold value, its input end connects the gas data after carrying out A/D conversion, and the output terminal of the first comparer D1 connects the first output terminal with the first input end of door D3 and XOR gate D4 respectively; The reference value of the second comparer D2 is set to atmosphere data threshold value, and its input end connects the atmosphere data after carrying out A/D conversion, and the output terminal of the second comparer D2 connects the second input end with door D3; Described the second input end being connected XOR gate D4 with the output terminal of door D3, the input end of the output terminal of XOR gate D4 then connection control circuit, and the output terminal connecting valve of control circuit, if control circuit receives high level, then gauge tap closes, if control circuit receives low level, then gauge tap disconnects.Wherein, comparer can adopt LM324.
Composition graphs 2, its truth table is as shown in table 1, wherein, represents the output signal corresponding with it respectively with D1-D4.
Table 1
| D1 | D2 | D3 | D4 |
| 0 | 0 | 0 | 0 |
| 0 | 1 | 0 | 0 |
| 1 | 0 | 0 | 1 |
| 1 | 1 | 1 | 0 |
As can be seen from Table 1, once outside atmosphere environment is poor, regardless of air in now toilet, controller all can not start scavenger fan, now can adopt the peculiar smell that alternate manner leaves in toilet; Only have when outside atmosphere environment is better, just can determine whether start scavenger fan according to the air regime in toilet, so just can effectively prevent from the contrary outdoor haze being introduced indoor, to the disadvantageous situation of human body in ventilation, thus raising ventilation effect, have more practicality.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.
Claims (6)
1. a toilet air exchange control system, for controlling the keying of scavenger fan, described scavenger fan connecting circuit comprises the power supply, switch and the scavenger fan that are linked in sequence; It is characterized in that: described control system comprises controller and the indoor gas sensor be attached thereto respectively and outdoor gas sensor, described indoor gas sensor, outdoor gas sensor sense the gas data in toilet, outdoor atmosphere data respectively, and data are sent into controller, described controller is closed or disconnection according to aforementioned data gauge tap.
2. a kind of toilet as claimed in claim 1 air exchange control system, it is characterized in that: described controller comprises the A/D change-over circuit, decision circuitry and the control circuit that are linked in sequence, gas sensor and outdoor gas sensor in the input end difference junction chamber of described A/D change-over circuit, after the data sensed respectively carry out A/D conversion, send into decision circuitry and judge; Described decision circuitry comprises 2 comparers, one and door and an XOR gate, wherein, first and second comparer stores gas data threshold value and atmosphere data threshold value respectively, the input end of described first comparer connects the gas data after carrying out A/D conversion, and output terminal connects the first output terminal with the first input end of door and XOR gate respectively; The input end of the second comparer connects the atmosphere data after carrying out A/D conversion, and output terminal connects the second input end with door; Described the second input end being connected XOR gate with the output terminal of door, the input end of the output terminal of XOR gate then connection control circuit, and the output terminal connecting valve of control circuit.
3. a kind of toilet as claimed in claim 2 air exchange control system, is characterized in that: described comparer adopts LM324.
4. a kind of toilet as claimed in claim 1 air exchange control system, is characterized in that: described indoor and outdoor gas sensor all adopts metal-oxide gas sensor.
5. a kind of toilet as claimed in claim 1 air exchange control system, is characterized in that: described controller also connects alarm.
6. a kind of toilet as claimed in claim 5 air exchange control system, is characterized in that: described alarm adopts flashlamp or hummer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410670178.7A CN104635525A (en) | 2014-11-20 | 2014-11-20 | Bathroom air exchange control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410670178.7A CN104635525A (en) | 2014-11-20 | 2014-11-20 | Bathroom air exchange control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104635525A true CN104635525A (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410670178.7A Pending CN104635525A (en) | 2014-11-20 | 2014-11-20 | Bathroom air exchange control system |
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| CN (1) | CN104635525A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11111660B2 (en) | 2018-07-25 | 2021-09-07 | Chiun Mai Communication Systems, Inc. | Smart control system and method implemented in bathroom |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1601112A (en) * | 2004-10-27 | 2005-03-30 | 陈俊郎 | Automatic exhaust fan |
| US20100144261A1 (en) * | 2007-04-18 | 2010-06-10 | Robert Bosch Gmbh | Device for controlling the ventilation apparatus for a motor vehicle interior |
| CN103206154A (en) * | 2013-04-15 | 2013-07-17 | 无锡市崇安区科技创业服务中心 | Exhaust window |
| CN103470133A (en) * | 2013-08-30 | 2013-12-25 | 健雄职业技术学院 | Intelligent window and control method |
| CN103743071A (en) * | 2014-01-23 | 2014-04-23 | 太仓苏易信息科技有限公司 | Bathroom automatic ventilating system |
| CN203848455U (en) * | 2014-04-25 | 2014-09-24 | 中康韦尔(保定)环境科技有限公司 | Air quality detection device capable of automatically adjusting indoor air environment |
-
2014
- 2014-11-20 CN CN201410670178.7A patent/CN104635525A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1601112A (en) * | 2004-10-27 | 2005-03-30 | 陈俊郎 | Automatic exhaust fan |
| US20100144261A1 (en) * | 2007-04-18 | 2010-06-10 | Robert Bosch Gmbh | Device for controlling the ventilation apparatus for a motor vehicle interior |
| CN103206154A (en) * | 2013-04-15 | 2013-07-17 | 无锡市崇安区科技创业服务中心 | Exhaust window |
| CN103470133A (en) * | 2013-08-30 | 2013-12-25 | 健雄职业技术学院 | Intelligent window and control method |
| CN103743071A (en) * | 2014-01-23 | 2014-04-23 | 太仓苏易信息科技有限公司 | Bathroom automatic ventilating system |
| CN203848455U (en) * | 2014-04-25 | 2014-09-24 | 中康韦尔(保定)环境科技有限公司 | Air quality detection device capable of automatically adjusting indoor air environment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11111660B2 (en) | 2018-07-25 | 2021-09-07 | Chiun Mai Communication Systems, Inc. | Smart control system and method implemented in bathroom |
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Application publication date: 20150520 |