CN110258736B - Intelligent method and system for healthy air in public toilet - Google Patents
Intelligent method and system for healthy air in public toilet Download PDFInfo
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- CN110258736B CN110258736B CN201910575444.0A CN201910575444A CN110258736B CN 110258736 B CN110258736 B CN 110258736B CN 201910575444 A CN201910575444 A CN 201910575444A CN 110258736 B CN110258736 B CN 110258736B
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
- E03D9/04—Special arrangement or operation of ventilating devices
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Abstract
The invention belongs to the field of public facility sanitation, relates to ventilation equipment for public toilets, and particularly relates to an intelligent method and system for healthy air in public toilets. The intelligent system of public latrine healthy air of this technical scheme includes data acquisition module, data processing module and execution module, and when the duration that ammonia exhaust system is in the open mode was higher than the regulation threshold value to when the air humidity that data acquisition module detected was higher than the regulation threshold value of public latrine air humidity, data processing module opened drying system. The system can detect and eliminate factors interfering with the detection accuracy of the gas sensor probe, so that the health and sanitation degree of air in a public toilet is kept more efficiently and intelligently. The technical scheme can be applied to the construction practice of intelligent public toilets in smart cities.
Description
Technical Field
The invention belongs to the field of public facility sanitation, relates to ventilation equipment for public toilets, and particularly relates to an intelligent method and system for healthy air in public toilets.
Background
Public latrine hygiene is an important aspect of urban and rural civilized construction, and scenic spots, cities and rural areas need to strengthen the construction of sanitary public latrines so as to try to fill up the short board which influences the quality of life of the masses. The intelligent public toilet of a smart city is a problem to be solved urgently at present in order to comprehensively improve the management level of the public toilet, establish a long-acting management mechanism and comprehensively build a modern new city.
Chinese patent CN104294900B (intelligent method and system for public toilet health air) discloses the technical scheme: and an ammonia gas probe, a hydrogen sulfide probe and a local air suction and exhaust port are arranged near each toilet or each group of toilet areas to detect and suck and exhaust the dirty air near each toilet or each group of toilet areas. However, the above technical solutions have the following problems: when the humidity in the air is higher, the moisture in the air can be condensed at the gas sensor probe, the gas pollutants (especially ammonia gas) in the public toilet are water-soluble gas, and the ammonia gas is dissolved in the condensed water at the gas sensor probe, so that the accuracy of the detection result can be influenced. In addition, when more ammonia molecules and water molecules exist in the environment, the ammonia molecules are combined with the water molecules to generate NH with stronger alkalinity4OH molecules, which react more readily with chemicals in the probe to deprive protons and thus generate current, cause the probe to detect ammonia concentrations above the actual level. The prior art scheme does not provide a method for solving the problems, so that the detection result is inaccurate.
Disclosure of Invention
The invention aims to provide a public toilet healthy air intelligent system which can detect and eliminate factors interfering with the detection accuracy of a gas sensor probe, so that the healthy and sanitary degree of air in a public toilet is maintained more efficiently and intelligently.
In order to solve the technical problems, the technical scheme of the invention is as follows:
public latrine healthy air intelligent system, including data acquisition module, data processing module and execution module:
the data acquisition module comprises a gas concentration sensing terminal and a humidity detection terminal, the gas concentration sensing terminal is used for detecting the concentration of polluted gas in the public toilet, the polluted gas comprises ammonia gas, and the humidity detection terminal is used for detecting the air humidity in the public toilet;
the execution module is used for receiving and executing the command of the data processing module, and comprises an ammonia gas exhaust system and a drying system, wherein the drying system is used for drying the gas concentration sensing terminal and the air around the gas concentration sensing terminal;
the data processing module is used for monitoring the data detected by the data acquisition module and sending a command to the execution module, starting the ammonia exhaust system when the ammonia concentration detected by the data acquisition module is higher than the specified upper limit of the ammonia concentration in the public toilet, and closing the ammonia exhaust system when the ammonia concentration detected by the data acquisition module is lower than the specified lower limit of the ammonia concentration in the public toilet; when the duration of the ammonia exhaust system in the opening state is higher than the specified threshold value and the air humidity detected by the data acquisition module is higher than the specified threshold value of the air humidity of the public toilet, the data processing module starts the drying system.
By adopting the technical scheme, the technical principle is as follows: when the concentration of the ammonia gas exceeds the specified upper limit, the exhaust system is started to strengthen the gas flow in the public toilet and exchange the gas with the air outside the public toilet, so that the ammonia gas in the public toilet can be effectively discharged; when the ammonia gas in the public toilet is lower than the specified lower limit, the exhaust system is closed to achieve the purpose of saving energy.
The ammonia molecules and the water molecules perform Brownian motion in the space, the probability that the ammonia molecules and the water molecules meet each other is high under the condition that the concentration and the humidity of the ammonia are simultaneously high, and the ammonia and the water molecules react to generate NH4OH, which substance promotes the sense of gas concentration more rapidlyThe chemical substance at the end reacts to generate a stronger current signal, so that the detection value of the gas concentration sensing end is higher than the actual value. In addition, the hydrone is at gas concentration induction terminal condensation (general air humidity is above 70%, this kind of condition appears), and the ammonia is dissolved in aqueous for gas concentration induction terminal continuously surveys the ammonia that gives out from the condensate water (gas concentration induction terminal can not effectively survey the ammonia concentration in the air, and sensitivity descends), also makes gas concentration induction terminal's detection value be higher than actual value.
Under the circumstances that ammonia exhaust system does not have trouble, public latrine structural design is reasonable, and ammonia concentration and humidity are higher simultaneously and are the reason that leads to gas concentration response terminal to survey accuracy and sensitivity to reduce, nevertheless do not mean that ammonia concentration and humidity are higher simultaneously appearing, will appear the problem that gas concentration response terminal surveys accuracy and sensitivity and reduces. Therefore, one of the judgment factors adopted by the public toilet healthy air intelligent system is that the duration of the open state of the ammonia exhaust system is higher than the specified threshold value, and the factor comprises information of two aspects: (1) an event with higher ammonia concentration occurs in the public toilet; (2) under the condition that an ammonia exhaust system has no fault, the ammonia concentration value detected by the gas concentration sensing terminal cannot be reduced to a specified lower limit for a long time. In addition, the information of high humidity in the public toilet is integrated, so that the judgment can be made, the detection accuracy and sensitivity of the gas concentration sensing terminal are influenced by the humidity, and the gas concentration sensing terminal needs to be dried.
Under the condition that the ammonia exhaust system has no fault and the public toilet is reasonable in structural design, the drying system is started to dry the gas concentration sensing terminal and the ambient air of the gas concentration sensing terminal under the condition that the ammonia exhaust system operates for a long time and the indoor humidity is higher. The drying operation can evaporate the moisture of condensation on the gas concentration sensing terminal, also can clear away the moisture in the air around this terminal, makes the gas concentration sensing terminal can survey the ammonia content in the public latrine more accurately and sensitively.
In the technical scheme, the air humidity refers to relative humidity in the technical scheme, and the relative humidity is expressed by percentage of the ratio of actual water vapor pressure in air to saturated water vapor pressure at the current air temperature, and is an integer. The gas concentration sensing terminal detects the concentration of the polluted gas in the public toilet through electrochemical reaction, and belongs to the conventional means in the prior art.
Has the advantages that:
the prior art does not generally relate ammonia gas concentration to air humidity, neglecting the interaction of ammonia gas molecules and water molecules. Generally, as long as the humidity exceeds a certain value, the indoor integrated dehumidification mode is adopted, but the operation consumes energy, and the effect of increasing the accuracy and the sensitivity of the gas concentration sensing terminal cannot be achieved quickly. The inventor finds that when the ammonia exhaust system is faultless and the public toilet is reasonable in structural design, the exhaust ventilation system runs for a long time, the indoor ammonia concentration value detected by the gas concentration sensing terminal cannot reach the standard, the indoor air humidity is high, the interaction of ammonia molecules and water molecules in the air influences the accuracy and the sensitivity of the gas concentration sensing terminal, and the gas concentration sensing terminal needs to be dried. There are two factors that determine whether to dry the gas concentration sensing terminal: the duration that the ammonia exhaust system is in the open state is above a specified value (providing both information) and the air humidity exceeds a specified value. And simultaneously, whether the reaction gas concentration sensing terminal has the problem of interfering the detection accuracy and sensitivity of the reaction gas concentration sensing terminal can be more accurately analyzed by the two factors.
This technical scheme has adopted the special drying system who establishes to be used for dry gas concentration response terminal and gas concentration response terminal surrounding air, not only can the comdenstion water on the dry gas concentration response terminal, can also dry the air around this terminal, improves and surveys accuracy and sensitivity. The gas concentration sensing terminal belongs to a precise instrument, and can not be dried for a long time so as not to influence the service life and the detection accuracy of the gas concentration sensing terminal. And long-term drying also consumes energy, and the technical scheme judges the time of drying treatment through multi-factor analysis and carries out drying treatment on the gas concentration sensing terminal under specific conditions, thereby saving energy and protecting the gas concentration sensing terminal.
In conclusion, the beneficial effects of the technical scheme are as follows:
(1) it was found that the simultaneous high ammonia concentration and humidity is a possible cause of the decrease in the detection accuracy and sensitivity of the gas concentration sensing terminal.
(2) Whether the gas concentration induction terminal needs drying treatment or not is comprehensively judged through two factors (the duration of the open state of the ammonia exhaust system is higher than a specified value and the air humidity exceeds the specified value), and the judgment accuracy is higher.
(3) And the gas concentration sensing terminal is dried under a specific condition, so that the energy is saved, and the gas concentration sensing terminal is protected.
Further, the range of the specified threshold value of the air humidity of the public toilet is 30-80%, and the specified upper limit of the ammonia gas concentration of the public toilet is 0.25mg/m3The regulated lower limit of the concentration of ammonia gas in the public toilet is 0.15mg/m3The range of the specified threshold value of the duration time of the ammonia exhaust system in the opening state is 5-20 min.
By adopting the technical scheme, the humidity exceeds 30%, a certain amount of water molecules in the air perform Brownian motion, if the amount of ammonia molecules is more (the concentration of ammonia in a public toilet is higher), the probability of meeting of the ammonia molecules and the water molecules is high, and the ammonia and the water molecules react to generate NH4OH, the substance can promote the chemical substances at the gas concentration sensing terminal to react more quickly and generate stronger current signals, so that the detection value of the gas concentration sensing terminal is higher than the actual value. When the air humidity rises to more than 70%, water molecules are condensed and may be attached to the probe of the gas concentration sensing terminal, thereby affecting the measurement result. The specified value of the air humidity of the public toilet can be selected according to the actual sanitary condition of the public toilet, the environmental temperature and other factors.
The numerical value of the regulated upper limit of the public toilet ammonia gas concentration is 0.25mg/m3Is less than the regulated over-standard value of the public toilet ammonia gas concentration in GB-T17217-1998 urban public toilet sanitary standard. Under the condition of high humidity of the ammonia gas with the concentration value, ammonia gas molecules and water molecules are easy to react, and the accuracy of the gas concentration sensor can be influencedSex and sensitivity. The regulated lower limit of the ammonia gas concentration in the public toilet is 0.15mg/m3And the ammonia concentration of the public toilet is lower than the value, so that a user can have a more comfortable use environment.
Further, the gas concentration sensing terminal comprises an ammonia concentration detection unit, wherein the ammonia concentration detection unit comprises an ammonia concentration sensor, an STC single chip microcomputer and a LoRa wireless communication module; the ammonia concentration sensor is hung on a ceiling of a public toilet and used for detecting the ammonia concentration in the public toilet and transmitting information containing the ammonia concentration to the STC single chip microcomputer, and the STC single chip microcomputer controls the LoRa wireless module to send the information to the data processing module;
the humidity detection terminal comprises a humidity sensor, an STC single chip microcomputer and a LoRa wireless communication module; the humidity sensor is hung on a ceiling of a public toilet, detects the air humidity in the public toilet, transmits the information containing the air humidity to the STC single chip microcomputer, and the STC single chip microcomputer controls the LoRa wireless communication module to transmit the information to the data processing module.
By adopting the technical scheme, the density of ammonia is less than the average density of air, and after urine reacts to generate ammonia when meeting air, the ammonia moves to the space above the public toilet, so that the ammonia concentration sensor for detecting the ammonia is fixedly arranged on the ceiling of the public toilet. The humidity sensor is hung on the ceiling, the influence of water used in a hand washing pool and a toilet stool in a public toilet on the humidity sensor can be avoided due to the high position, and the damage or the detection influence of the sensing terminal caused by the fact that a person touches the sensing terminal can also be prevented.
Further, the ammonia exhaust system comprises a LoRa wireless communication module, an STC single chip microcomputer, a relay and a ventilation fan; the LoRa wireless communication module receives a command signal from the data processing module, transmits the command signal to the STC single chip microcomputer, and controls the relay to open or close the ventilation fan after the STC single chip microcomputer processes the signal;
the drying system comprises a LoRa wireless communication module, an STC single chip microcomputer, a heater and a relay; the LoRa wireless communication module receives a command signal from the data processing module, transmits the command signal to the STC single chip microcomputer, and controls the relay to turn on or turn off the heater after the STC single chip microcomputer processes the signal; several heaters were suspended from the ceiling, which were sensed around the ammonia concentration.
By adopting the technical scheme, under the condition that the ammonia concentration exceeds the standard or water molecules influence the accuracy and the sensitivity of the gas sensor, intelligent air exhaust, ventilation, drying and water removal can be realized.
Further, the execution module further comprises a staff terminal, and the staff terminal comprises display equipment, an LoRa wireless communication module and an STC single chip microcomputer; the LoRa wireless communication module receives the data processing module signal and transmits the signal to the STC single chip microcomputer, and the signal is displayed to the staff on the display device after being processed by the STC single chip microcomputer.
By adopting the technical scheme, the execution module is provided with the staff terminal, so that the staff can know the sanitary condition in the public toilet in time and decide whether to perform manual intervention on the public toilet according to the sanitary condition of the public toilet and the running condition of the intelligent equipment.
Furthermore, the data processing module comprises an STM microcontroller, and after information transmitted by the data acquisition module is processed by the STM microcontroller, the STM microcontroller sends a command to the execution module.
By adopting the technical scheme, the STM microcontroller has the advantages of energy conservation, strong compatibility, high cost performance and the like.
Further, the heater is fixedly arranged in a metal net, and solid perfume is arranged in the metal net.
By adopting the technical scheme, the solid perfume in the metal mesh can rapidly emit fragrance under the heating condition, the function of covering peculiar smell in a public toilet can be achieved by utilizing heat energy, and the solid perfume is prepared after the solid adsorbent adsorbs essence.
Further, the gas concentration sensing terminal also comprises a hydrogen sulfide concentration detection unit, wherein the hydrogen sulfide concentration detection unit comprises a hydrogen sulfide concentration sensor, an STC chip and an LoRa wireless communication module; the toilet stool in the public toilet is arranged in a compartment with a compartment door, and the hydrogen sulfide concentration sensor is used for detecting the concentration of hydrogen sulfide gas in the compartment; the hydrogen sulfide concentration sensor detects hydrogen sulfide gas concentration information in the compartment and transmits the hydrogen sulfide gas concentration information to the STC single chip microcomputer, and after the hydrogen sulfide gas concentration information is processed by the STC single chip microcomputer, the LoRa wireless communication module sends the hydrogen sulfide gas concentration information to the data processing module;
the execution module further comprises a hydrogen sulfide exhaust system, the hydrogen sulfide exhaust system comprises a LoRa wireless communication module, an STC single chip microcomputer, a relay and a ventilation fan, and the ventilation fan is positioned in the compartment; the LoRa wireless communication module receives a command signal from the data processing module, transmits the command signal to the STC single chip microcomputer, and controls the relay to open or close the ventilation fan after the STC single chip microcomputer processes the signal;
the data processing module compares hydrogen sulfide concentration data detected by the hydrogen sulfide concentration sensor with a specified threshold of the concentration of hydrogen sulfide in a public toilet, and when the concentration of hydrogen sulfide detected by the hydrogen sulfide concentration sensor is higher than the specified threshold of the concentration of hydrogen sulfide in the public toilet, the ventilation fan of a compartment detected by the hydrogen sulfide concentration sensor is started, and the ventilation fan runs for a specified time.
By adopting the technical scheme, the hydrogen sulfide gas is mainly generated by the wastes (feces), the generation process of the hydrogen sulfide gas is slightly different from that of the ammonia gas, and the hydrogen sulfide gas is generated along with the wastes generated by a user without oxidation decomposition reaction for a certain time. And malodorous substances such as skatole and indole appear together with the hydrogen sulfide gas along with the waste. Therefore, the hydrogen sulfide gas in the toilet compartment needs to be cleaned in time to achieve the purpose of increasing the comfort experience of the user. Other malodorous substances generated along with the exhaust can be eliminated simultaneously by detecting the concentration level of the hydrogen sulfide and starting the exhaust fan according to the concentration level of the hydrogen sulfide. And adopt every compartment all to set up the scheme of hydrogen sulfide concentration inductor and exhaust fan, can open and close the exhaust fan according to the in service behavior of compartment, practiced thrift the energy.
Further, the hydrogen sulfide concentration detection unit also comprises a fragrance machine, and the fragrance machine is fixed in the compartment; the partition is formed by a connecting partition plate, a locking partition plate, a public toilet wall and a partition door in a surrounding mode, the partition door is of an inward opening type, the connecting partition plate and the locking partition plate are respectively located on two sides of the partition door, and the partition door is in rotary connection with the connecting partition plate; the sponge is fixed on the side surface of the compartment door close to the locking partition plate, a blind hole is formed in the side surface of the locking partition plate close to the compartment door, an elastic piece and a hydrogen sulfide concentration sensor are sequentially arranged from the bottom of the blind hole to a blind hole opening, and the hydrogen sulfide concentration sensor is fixedly connected with the elastic piece; the elastic piece comprises a metal block, a metal sheet and a spring, one surface of the metal block is fixed at the bottom of the blind hole, one surface of the metal block, which is far away from the bottom of the blind hole, is provided with a groove, one end of the spring is fixed in the groove, and the other end of the spring is fixed on one surface of the metal sheet; when the compartment door is closed, the detection end of the hydrogen sulfide concentration sensor sinks into the sponge, the metal sheet is in contact with the metal block, the fragrance machine is started, and the metal sheet and the metal block are both made of conductive materials.
Adopt above-mentioned technical scheme, the user is before like the lavatory, and the compartment door is in the state of inwards opening, and the sponge can absorb the gas in the compartment, and after the user got into the compartment and closed the compartment door, during hydrogen sulfide concentration sensor's detection end was absorbed into the sponge, the hydrogen sulfide gas of collection in the sponge, because hydrogen sulfide concentration sensor's extrusion, discharged hydrogen sulfide concentration sensor's detection end. The hydrogen sulfide concentration sensor detects the concentration information of hydrogen sulfide in the sponge, if the concentration of the hydrogen sulfide exceeds the standard, the ventilation fan of the compartment is started, and the ventilation fan stops after running for a specified time. Meanwhile, after the compartment door is closed, the metal sheet is pushed, the metal sheet is tightly attached to the metal part around the metal block groove, the circuit is communicated, the fragrance machine starts to work, and a comfortable toilet environment is manufactured for a user. The user finishes like the lavatory, opens the compartment door, and under the effect of spring, sheetmetal and metal block separate, and fragrant atmosphere machine stop work, the energy saving. At the same time, the sponge shape on the compartment door recovers, and the gas in the compartment continues to be adsorbed in the process of recovery.
This technical scheme can clear away and cover the produced peculiar smell gas of last compartment user, gives next user with comfortable use experience. Meanwhile, the sponge also has the function of cleaning the probe.
The compartment door is inward-opening, that is, the user needs to push or pull the compartment door toward the inside of the compartment to open the compartment door.
Further, the method of the public toilet health air intelligent system comprises the following steps: when the ammonia concentration detected by the data acquisition module is higher than the specified upper limit of the ammonia concentration in the public toilet, the data processing module starts an ammonia exhaust system, and when the ammonia concentration detected by the data acquisition module is lower than the specified lower limit of the ammonia concentration in the public toilet, the data processing module closes the ammonia exhaust system; when the duration that ammonia exhaust system is in the open mode is higher than the specified value to when the air humidity that data acquisition module detected is higher than the specified value of public latrine air humidity, data processing module opens the drying system who is used for dry gas concentration induction terminal.
By adopting the technical scheme, the ammonia pollution condition in the public toilet is intelligently detected, and the air exhaust, ventilation and cleaning treatment are carried out, so that the labor is saved; the drying system is started in due time, so that the detection accuracy and sensitivity of the gas concentration sensing terminal can be improved.
Drawings
FIG. 1 is a block diagram of the intelligent air public toilet health system of the present invention;
FIG. 2 is a front elevational view of the public toilet compartment of the present invention;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2 in accordance with the present invention;
fig. 4 is a structural diagram of a hydrogen sulfide gas detection unit in embodiment 3 of the present invention.
Detailed Description
The following is further detailed by the specific embodiments, wherein:
reference numerals in the drawings of the specification include: the device comprises a connecting partition plate 1, a hinge 2, a compartment door 3, a locking partition plate 4, a sponge 5, a hydrogen sulfide concentration sensor 6, an element box 7, a metal sheet 8, a metal block 9 and a spring 10.
Example 1:
as shown in fig. 1, an intelligent air system for public toilet health comprises a data acquisition module, a data processing module and an execution module, and each module is described in detail below:
data acquisition module
The data acquisition module comprises two types of terminals: gas concentration sensing terminal and humidity detection terminal. The gas concentration sensing terminal comprises an ammonia concentration detection unit, the ammonia concentration detection unit comprises an ammonia concentration sensor, an STC single chip microcomputer (model: STC89C52, the single chip microcomputer of the model has the advantages of wide application range and high reliability, and all STC single chip microcomputers in the embodiment are the models), a power supply and a LoRa wireless communication module; humidity detection terminal includes humidity inductor, STC singlechip, power and loRa wireless communication module. The ammonia concentration sensor is used for detecting the ammonia concentration in the public toilet, and the humidity sensor is used for detecting the air humidity (relative humidity) in the public toilet. The ammonia concentration sensor and the humidity sensor are both suspended and fixed on the ceiling of the public toilet. The density of ammonia is less than the average density of air, and after urine meets the air and reacts and produce the ammonia, the ammonia moves to the space above the public latrine, so will survey the fixed setting of ammonia concentration inductor of ammonia on the public latrine ceiling. The ammonia concentration sensor detects the ammonia concentration in the public toilet, information containing the ammonia concentration is transmitted to the STC single chip microcomputer corresponding to the ammonia concentration sensor, and the STC single chip microcomputer controls the LoRa wireless module to transmit the information to the data processing module from the gas concentration sensing terminal. Humidity in the public latrine is surveyed to the humidity inductor to give the STC singlechip that the humidity inductor corresponds with the signal transmission that represents humidity, STC singlechip control loRa wireless communication module sends the data processing module with information by humidity detection terminal.
Execution module
The execution module comprises an ammonia exhaust system, a drying system and a worker terminal. The ammonia exhaust system comprises a LoRa wireless communication module, an STC single chip microcomputer, a relay, a power supply and an air exchange fan; the drying system comprises a LoRa wireless communication module, an STC single chip microcomputer, a relay, a power supply and a heater (SuperVolt, RC016 and PTC low-power heater); the staff terminal includes display device, loRa wireless communication module, power and STC singlechip.
For the ammonia air exhaust and ventilation system, the LoRa wireless communication module receives a command signal which is from the data processing module and is about to open and close the air exhaust and ventilation system, transmits the command signal to the STC single chip microcomputer, and controls a relay corresponding to the STC single chip microcomputer to open and close the ventilation fan after the STC single chip microcomputer processes the signal.
For the staff terminal, the LoRa wireless communication module receives the data processing module signal, and various data information of the public toilet are displayed to the staff on the display equipment after being processed by the STC single chip microcomputer.
For the drying system, the LoRa wireless communication module receives a command signal which is from the data processing module and is about to start and stop the drying system, transmits the command signal to the STC single chip microcomputer, and after the STC single chip microcomputer processes the signal, controls a relay corresponding to the STC single chip microcomputer to start and stop the electric heater.
In this embodiment, the heater in the drying system is in the form of a strip, which can reach a maximum temperature of 70 ℃. The heater is hung beside the ammonia concentration sensor and is parallel to the ammonia concentration sensor, and the heater surrounds the ammonia concentration sensor. The number of the heaters is determined according to actual requirements, and in the embodiment, the number of the heaters is four. The heater is fixed in a metal net, and the metal net is filled with fragrant beads. The fragrant bead is prepared by the preparation method of the prior art, namely: the method comprises the steps of preparing spherical resin beads by using water-absorbent resin, soaking the spherical resin beads in essence solution to enable the resin to adsorb essence, and finally preparing the fragrant beads. In the embodiment, the used incense beads are directly purchased from the market, the service life of the incense beads is 20-30 days, and the incense beads need to be replaced by workers regularly. The diameter of the incense bead is larger than the aperture of the metal net, so that the incense bead can not slide out of the metal net. The metal net is provided with a door, which is convenient for the staff to regularly change the incense beads. When the heater works, the generated heat can promote the essence in the fragrance bead to volatilize, and the effect of increasing the fragrance of the air in the public toilet is achieved.
Data processing module
The data processing module includes an STM microcontroller. And after the information transmitted by the data acquisition module is processed by the STM microcontroller, the STM microcontroller sends a command to the execution module. After the STM microcontroller receives ammonia concentration information transmitted from the gas concentration sensing terminal, the STM microcontroller transmits the ammonia concentration informationThe controller firstly analyzes the information containing the ammonia concentration and calculates to obtain the ammonia concentration value. The STM microcontroller compares the calculated ammonia concentration value with the specified upper limit of the public toilet ammonia concentration, and when the calculated ammonia concentration value is higher than the specified upper limit of the public toilet ammonia concentration, the STM microcontroller sends a command for starting an ammonia exhaust system; and when the calculated ammonia concentration value is lower than the specified lower limit of the ammonia concentration of the public toilet, the STM microcontroller sends a command of closing the ammonia exhaust system. In this example, the upper limit of the ammonia gas concentration in the public toilet is set to 0.25mg/m3The regulated lower limit of the concentration of ammonia gas in the public toilet is 0.15mg/m3The value of the regulated upper limit is smaller than the regulated over-standard value of the public toilet ammonia gas concentration in GB-T17217-1998 urban public toilet sanitary standard.
When the duration time of the ammonia exhaust system in the open state is higher than a specified threshold (in the embodiment, the specified value is 10min), the STM microcontroller starts to monitor a signal transmitted from the humidity detection terminal, judges whether the air humidity in the public toilet exceeds the specified threshold (in the embodiment, the specified threshold of the air humidity is 40%), sends a command for opening the drying system when judging that the air humidity in the public toilet exceeds the specified threshold, and automatically closes the drying system after the drying system runs for 20 min; when the air humidity in the public toilet is judged not to exceed the specified value, the STM microcontroller sends a signal to the staff terminal to prompt the staff to adopt a proper treatment means. After the drying system is started, the electric heater heats air around the ammonia concentration sensor to promote air drying and drying of the detection end of the ammonia concentration sensor, so that the problem of inaccurate detection result caused by water drop adsorption at the detection end is solved.
The specific implementation process comprises the following steps: the gas concentration sensing terminal detects the ammonia concentration in the public toilet and sends the ammonia concentration information to the data processing module, and the STM microcontroller in the data processing module firstly analyzes the information containing the ammonia concentration and calculates to obtain an ammonia concentration value. The STM microcontroller compares the calculated ammonia concentration value with the specified upper limit of the public toilet ammonia concentration, and when the calculated ammonia concentration value is higher than the specified upper limit of the public toilet ammonia concentration, the STM microcontroller sends a command for starting an ammonia exhaust system; and when the calculated ammonia concentration value is lower than the specified lower limit of the ammonia concentration of the public toilet, the STM microcontroller sends a command of closing the ammonia exhaust system. And the ammonia exhaust system executes corresponding commands after receiving the commands of the data processing module.
When the duration that ammonia exhaust system is in the state of opening is higher than the regulation threshold value, STM microcontroller begins the signal that the monitoring humidity inductor transmitted to judge whether humidity in the public latrine room exceeds the specified value, when judging for the air humidity in the public latrine exceeds the specified value, STM microcontroller sends the order of opening drying system, and drying system automatic shutdown after the operation 20 min.
Example 2:
this embodiment is basically the same as embodiment 1 except that: in this embodiment, the gas concentration sensing terminal in the data acquisition module further includes a hydrogen sulfide concentration detection unit, and the execution module further includes a hydrogen sulfide exhaust system. In this embodiment, be provided with the compartment in the public latrine (fig. 2), each stool pot all lays in the compartment, and every compartment is enclosed by compartment door 3, two curb plates and public latrine wall, and two curb plates are connecting partition plate 1 and closure partition plate 4 respectively, and compartment door 3 is interior open, promptly: the user needs to push or pull the compartment door 3 towards the inside of the compartment to open the compartment door 3. All install hydrogen sulfide exhaust system in every compartment, hydrogen sulfide exhaust system includes loRa wireless communication module, STC singlechip, relay, power and scavenger fan. As shown in fig. 2, the connecting partition 1 and the locking partition 4 are respectively located at both sides of the compartment door 3, and the compartment door 3 is hinged to the connecting partition 1 by a hinge 2. In fig. 2, a portion a shows a hydrogen sulfide gas sampling structure, and fig. 3 is an enlarged view of the portion a, and the hydrogen sulfide concentration detection means includes a hydrogen sulfide concentration sensor 6, an element case 7, and a sponge 5. The one side of compartment door 3 towards closure baffle 4 is opened there is the blind hole, is fixed with hydrogen sulfide concentration inductor 6 and component box 7 in the blind hole, and hydrogen sulfide concentration inductor 6's detection end is towards closure baffle 4, and hydrogen sulfide concentration inductor 6's non-detection end is fixed with component box 7, is provided with battery, STC chip and loRa wireless communication module in the component box 7, and hydrogen sulfide is concentratedThe level sensor 6 is connected to the electrical components in the component box 7 by cables. The face of the locking partition 4 facing the compartment door 3 is glued with a sponge 5. In a state where the compartment door 3 is closed, the detection end of the hydrogen sulfide concentration sensor 6 is in contact with the sponge. The hydrogen sulfide concentration sensor 6 is used for detecting the concentration of hydrogen sulfide gas in the compartment, and then the information is processed by the STC single chip microcomputer and then sent to the data processing module through the LoRa wireless communication module. An STM microcontroller in the data processing module firstly analyzes information containing the concentration of the hydrogen sulfide and calculates to obtain a numerical value of the concentration of the hydrogen sulfide. The STM microcontroller compares the calculated hydrogen sulfide concentration value with the specified upper limit of the concentration of the hydrogen sulfide in the public toilet, and when the calculated hydrogen sulfide concentration value is higher than the specified upper limit of the concentration of the hydrogen sulfide in the public toilet, the STM microcontroller sends a command for starting the ventilation fan of the compartment corresponding to the hydrogen sulfide concentration sensor 6; and when the calculated hydrogen sulfide concentration value is lower than the specified lower limit of the hydrogen sulfide concentration of the public toilet, the STM microcontroller sends a command of closing the ventilation fan of the compartment corresponding to the hydrogen sulfide concentration sensor 6. In this example, the upper limit of the hydrogen sulfide concentration in the public toilet is set to 0.008mg/m3The specified lower limit of the concentration of hydrogen sulfide in public toilets is 0.003mg/m3The value of the specified upper limit is smaller than the specified superscale value of the concentration of the hydrogen sulfide in the public toilet in GB-T17217-1998 urban public toilet sanitary standard.
The specific implementation process comprises the following steps: before the user like the lavatory, compartment door 3 is in the state of inwards opening, and hydrogen sulfide concentration sensor 6 observable compartment hydrogen sulfide gas concentration information, if hydrogen sulfide gas concentration exceeds the regulation upper limit in the compartment, STM microcontroller just starts the scavenger fan of this compartment, and the exhaust peculiar smell is gaseous, and until hydrogen sulfide gas concentration is less than the regulation lower limit in the compartment, STM microcontroller just closes the scavenger fan of this compartment, builds comfortable environment for the user. If the concentration of the hydrogen sulfide gas in the compartment does not exceed the specified upper limit, the ventilation fan is not started to save energy. When the user is like the lavatory, close compartment door 3, the detection end of hydrogen sulfide concentration inductor 6 contacts with flexible sponge 5, sponge 5 has the effect of the detection end of clean hydrogen sulfide concentration inductor 6, in addition, sponge 5 contacts with the detection end and has hindered the air flow before the detection end, 6 further samplings of hydrogen sulfide concentration inductor have been prevented, the hydrogen sulfide gas concentration information of its collection can be less than the regulation lower limit, STM microcontroller can close the scavenger fan, build quiet environment for the user. After the user is like the lavatory, open compartment door 3, hydrogen sulfide concentration sensor 6 begins to survey the interior hydrogen sulfide gas of compartment again, if hydrogen sulfide gas exceedes the regulation upper limit, just opens the fan that this compartment corresponds and in time clears up dirty air. The hydrogen sulfide gas is mainly generated from the waste (feces), and the generation process of the hydrogen sulfide gas is slightly different from that of the ammonia gas, and the hydrogen sulfide gas is generated without oxidation reaction for a certain time and along with the generation of the waste of a user. And malodorous substances such as skatole and indole appear together with the hydrogen sulfide gas along with the waste. Other malodorous substances generated along with the excrement can be eliminated simultaneously by detecting the concentration level of the hydrogen sulfide and starting the exhaust fan according to the concentration level of the hydrogen sulfide.
Example 3:
this embodiment is basically the same as embodiment 2, except that: referring to fig. 4, the hydrogen sulfide concentration detection unit in section a is slightly different. The hydrogen sulfide concentration detection unit includes a hydrogen sulfide concentration sensor 6, a component case 7, a sponge 5, a fragrance machine (DFS-300 ML), and an elastic member. The elastic member comprises a metal sheet 8, a spring 10 and a metal block 9. As shown in fig. 3, the sponge 5 is adhesively fixed to the side of the compartment door 3 facing the closure panel 4. When the compartment door 3 is closed, a blind hole is arranged on the locking clapboard 4 corresponding to the sponge 5. The metal block 9, the spring 10, the metal sheet 8, the element box 7 and the hydrogen sulfide concentration sensor 6 are arranged from the bottom of the blind hole to the opening of the blind hole in sequence. The metal block 9 is fixed at the bottom of the blind hole, a groove is formed in the surface, away from the bottom of the blind hole, of the metal block 9, the groove is located in the middle of the metal block 9, one end of a spring 10 is fixed at the bottom of the groove, and the other end of the spring 10 is fixed on the metal sheet 8. The metal sheet 8 is fixedly adhered to the element box 7, and one surface of the element box 7, which is far away from the metal sheet 8, is fixed to the non-detection end of the hydrogen sulfide concentration sensor 6. The metal sheet 8, the element box 7 and the hydrogen sulfide concentration sensor 6 can slide in the blind holes. The metal sheet 8 and the metal block 9 are respectively connected with a lead made of metal aluminum, the leads are connected with a fragrance machine, and the spring 10 is made of an insulating material. When the compartment door 3 is closed, the metal sheet 8 is tightly attached to the metal part at the periphery of the groove of the metal block 9, the circuit is communicated, and the fragrance machine starts to work. And the detection end of the hydrogen sulfide concentration sensor 6 may be sunk into the sponge 5 when the compartment door 3 is closed.
The hydrogen sulfide concentration sensor 6 detects hydrogen sulfide gas concentration information, and then the information is processed by the STC single chip microcomputer and then is sent to the data processing module through the LoRa wireless communication module. An STM microcontroller in the data processing module firstly analyzes information containing the concentration of the hydrogen sulfide and calculates to obtain a numerical value of the concentration of the hydrogen sulfide. And the STM microcontroller compares the calculated hydrogen sulfide concentration value with the specified upper limit of the concentration of the hydrogen sulfide in the public toilet, and when the calculated hydrogen sulfide concentration value is higher than the specified upper limit of the concentration of the hydrogen sulfide in the public toilet, the STM microcontroller sends a command for starting the ventilation fan of the compartment corresponding to the hydrogen sulfide concentration sensor 6, and the ventilation fan automatically stops after running for a specified time (5 min). In this embodiment, the prescribed threshold for the concentration of hydrogen sulfide in a public toilet is 0.003mg/m3The value of the specified threshold is smaller than the specified superscript value of the concentration of the hydrogen sulfide in the public toilet in GB-T17217-1998 urban public toilet sanitary Standard.
The specific implementation process comprises the following steps: before the user like the lavatory, compartment door 3 is in the state of inwards opening, and sponge 5 can absorb the gas in the compartment, and after the user got into the compartment and closed compartment door 3, hydrogen sulfide concentration inductor 6's detection end was absorbed into sponge 5, and the hydrogen sulfide gas of collection in the sponge 5 has been arranged on hydrogen sulfide concentration inductor 6's the detection end because hydrogen sulfide concentration inductor 6's extrusion. The hydrogen sulfide concentration sensor 6 detects the concentration information of hydrogen sulfide in the sponge 5, if the concentration of hydrogen sulfide exceeds the standard, the ventilation fan in the compartment is started, and the ventilation fan stops after running for 5 min. Meanwhile, after the compartment door 3 is closed, the metal sheet 8 is pushed by the sponge 5, the acting force of the spring 10 is overcome, the metal sheet 8 and the metal part around the groove of the metal block 9 are tightly attached, the circuit is communicated, the fragrance machine starts to work, and a comfortable toilet environment is created for a user. The user finishes like the lavatory, opens compartment door 3, under the effect of spring 10, and sheetmetal 8 and metal block 9 are separated, and fragrant atmosphere machine stop work, the energy saving. At the same time the shape of the sponge 5 on the compartment door 3 recovers and continues to adsorb the gas in the compartment during the recovery process. If the hydrogen sulfide gas concentration in the compartment is too high, the exhaust fan in the compartment can also be turned on by the STM microprocessor by passing to the hydrogen sulfide concentration sensor 6 located on the opposite outer side of the compartment.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. The public toilet health air intelligent system comprises a data acquisition module, a data processing module and an execution module, and is characterized in that,
the data acquisition module comprises a gas concentration sensing terminal and a humidity detection terminal, the gas concentration sensing terminal is used for detecting the concentration of polluted gas in the public toilet, the polluted gas comprises ammonia gas, and the humidity detection terminal is used for detecting the air humidity in the public toilet;
the execution module is used for receiving and executing the command of the data processing module, and comprises an ammonia gas exhaust system and a drying system, wherein the drying system is used for drying the gas concentration sensing terminal and the air around the gas concentration sensing terminal;
the data processing module is used for monitoring the data detected by the data acquisition module and sending a command to the execution module, starting the ammonia exhaust system when the ammonia concentration detected by the data acquisition module is higher than the specified upper limit of the ammonia concentration in the public toilet, and closing the ammonia exhaust system when the ammonia concentration detected by the data acquisition module is lower than the specified lower limit of the ammonia concentration in the public toilet; when the duration time of the ammonia exhaust system in the starting state is higher than a specified threshold value and the air humidity detected by the data acquisition module is higher than the specified threshold value of the air humidity of the public toilet, the data processing module starts the drying system;
the gas concentration sensing terminal comprises a hydrogen sulfide concentration detection unit, wherein the hydrogen sulfide concentration detection unit comprises a hydrogen sulfide concentration sensor, an STC chip and a LoRa wireless communication module; the toilet stool in the public toilet is arranged in a compartment with a compartment door, and the hydrogen sulfide concentration sensor is used for detecting the concentration of hydrogen sulfide gas in the compartment; the hydrogen sulfide concentration sensor detects hydrogen sulfide gas concentration information in the compartment and transmits the hydrogen sulfide gas concentration information to the STC single chip microcomputer, and after the hydrogen sulfide gas concentration information is processed by the STC single chip microcomputer, the LoRa wireless communication module sends the hydrogen sulfide gas concentration information to the data processing module;
the execution module further comprises a hydrogen sulfide exhaust system, the hydrogen sulfide exhaust system comprises a LoRa wireless communication module, an STC single chip microcomputer, a relay and a ventilation fan, and the ventilation fan is positioned in the compartment; the LoRa wireless communication module receives a command signal from the data processing module, transmits the command signal to the STC single chip microcomputer, and controls the relay to open or close the ventilation fan after the STC single chip microcomputer processes the signal;
the data processing module compares hydrogen sulfide concentration data detected by the hydrogen sulfide concentration sensor with a specified threshold of the concentration of hydrogen sulfide in a public toilet, and when the concentration of hydrogen sulfide detected by the hydrogen sulfide concentration sensor is higher than the specified threshold of the concentration of hydrogen sulfide in the public toilet, a ventilation fan of a compartment detected by the hydrogen sulfide concentration sensor is started, and the ventilation fan runs for a specified time;
the hydrogen sulfide concentration detection unit also comprises a fragrance machine, and the fragrance machine is fixed in the compartment; the partition is formed by a connecting partition plate, a locking partition plate, a public toilet wall and a partition door in a surrounding mode, the partition door is of an inward opening type, the connecting partition plate and the locking partition plate are respectively located on two sides of the partition door, and the partition door is in rotary connection with the connecting partition plate; the sponge is fixed on the side surface of the compartment door close to the locking partition plate, a blind hole is formed in the side surface of the locking partition plate close to the compartment door, an elastic piece and a hydrogen sulfide concentration sensor are sequentially arranged from the bottom of the blind hole to a blind hole opening, and the hydrogen sulfide concentration sensor is fixedly connected with the elastic piece; the elastic piece comprises a metal block, a metal sheet and a spring, one surface of the metal block is fixed at the bottom of the blind hole, one surface of the metal block, which is far away from the bottom of the blind hole, is provided with a groove, one end of the spring is fixed in the groove, and the other end of the spring is fixed on one surface of the metal sheet; when the compartment door is closed, the detection end of the hydrogen sulfide concentration sensor sinks into the sponge, the metal sheet is in contact with the metal block, the fragrance machine is started, and the metal sheet and the metal block are both made of conductive materials.
2. The intelligent public toilet healthy air system according to claim 1, wherein the prescribed threshold value of the public toilet air humidity is in the range of 30-80%, and the prescribed upper limit of the public toilet ammonia gas concentration is 0.25mg/m3The regulated lower limit of the concentration of ammonia gas in the public toilet is 0.15mg/m3The range of the specified threshold value of the duration time of the ammonia exhaust system in the opening state is 5-20 min.
3. The public toilet healthy air intelligent system according to claim 2, wherein the gas concentration sensing terminal comprises an ammonia gas concentration detection unit, and the ammonia gas concentration detection unit comprises an ammonia gas concentration sensor, an STC single chip microcomputer and a LoRa wireless communication module; the ammonia concentration sensor is hung on a ceiling of a public toilet and used for detecting the ammonia concentration in the public toilet and transmitting information containing the ammonia concentration to the STC single chip microcomputer, and the STC single chip microcomputer controls the LoRa wireless module to send the information to the data processing module;
the humidity detection terminal comprises a humidity sensor, an STC single chip microcomputer and a LoRa wireless communication module; the humidity sensor is hung on a ceiling of a public toilet, detects the air humidity in the public toilet, transmits the information containing the air humidity to the STC single chip microcomputer, and the STC single chip microcomputer controls the LoRa wireless communication module to transmit the information to the data processing module.
4. The intelligent air public toilet health system according to any one of claims 1 to 3, wherein the ammonia exhaust system comprises a LoRa wireless communication module, an STC single chip microcomputer, a relay and a ventilation fan; the LoRa wireless communication module receives a command signal from the data processing module, transmits the command signal to the STC single chip microcomputer, and controls the relay to open or close the ventilation fan after the STC single chip microcomputer processes the signal;
the drying system comprises a LoRa wireless communication module, an STC single chip microcomputer, a heater and a relay; the LoRa wireless communication module receives a command signal from the data processing module, transmits the command signal to the STC single chip microcomputer, and controls the relay to turn on or turn off the heater after the STC single chip microcomputer processes the signal; several heaters were suspended from the ceiling, which were sensed around the ammonia concentration.
5. The public toilet health air intelligent system according to claim 4, wherein the execution module further comprises a staff terminal, the staff terminal comprising a display device, a LoRa wireless communication module and an STC single chip microcomputer; the LoRa wireless communication module receives the data processing module signal and transmits the signal to the STC single chip microcomputer, and the signal is displayed to the staff on the display device after being processed by the STC single chip microcomputer.
6. The intelligent air public toilet health system according to claim 5, wherein the data processing module comprises an STM microcontroller, and after information transmitted from the data acquisition module is processed by the STM microcontroller, the STM microcontroller sends a command to the execution module.
7. The intelligent air public toilet health system according to claim 6, wherein the heater is fixedly arranged in a metal net, and solid perfume is arranged in the metal net.
8. The method of the intelligent system for public toilet health air according to claim 7, wherein the data processing module turns on the ammonia air exhaust system when the ammonia concentration detected by the data acquisition module is higher than the specified upper limit of the ammonia concentration in the public toilet, and turns off the ammonia air exhaust system when the ammonia concentration detected by the data acquisition module is lower than the specified lower limit of the ammonia concentration in the public toilet; when the duration that ammonia exhaust system is in the open mode is higher than the specified value to when the air humidity that data acquisition module detected is higher than the specified value of public latrine air humidity, data processing module opens the drying system who is used for dry gas concentration induction terminal.
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| CN202755429U (en) * | 2012-09-03 | 2013-02-27 | 中国计量学院 | Intelligent ventilating and deodorizing control system of public toilet |
| CN106555426A (en) * | 2015-09-30 | 2017-04-05 | 南京荷塘月色信息科技有限公司 | A kind of public lavatory air draft and cleaning systems |
| CN108487408A (en) * | 2018-03-30 | 2018-09-04 | 大唐恒泰科技产业集团有限公司 | A kind of intelligent ecological lavatory, intelligent ecological lavatory management platform and monitoring system |
| CN108644959A (en) * | 2018-05-14 | 2018-10-12 | 湖南科美洁环保科技有限公司 | It defends with intelligent air purifying deodoration system in lavatory |
| CN208518392U (en) * | 2018-06-19 | 2019-02-19 | 广东克劳迪卫浴科技股份有限公司 | A kind of intelligent public lavatory for capableing of remote supervisory and control |
| CN108983717A (en) * | 2018-07-09 | 2018-12-11 | 苏州随身玩信息技术有限公司 | A kind of intelligent lavatory management system based on distributed data acquisition technology |
| CN109779304A (en) * | 2018-12-24 | 2019-05-21 | 广东拜登网络技术有限公司 | A kind of intelligence lavatory and its control method |
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