CN110327000B - Intelligent cleaning system and method for public toilet - Google Patents

Intelligent cleaning system and method for public toilet Download PDF

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Publication number
CN110327000B
CN110327000B CN201910575449.3A CN201910575449A CN110327000B CN 110327000 B CN110327000 B CN 110327000B CN 201910575449 A CN201910575449 A CN 201910575449A CN 110327000 B CN110327000 B CN 110327000B
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hydrogen sulfide
concentration
ammonia
toilet
chip microcomputer
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CN110327000A (en
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璧垫椽
赵洪
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Binnan Ecological Environment Group Co.,Ltd.
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North Control Binnan Health Chongqing Environmental Engineering Co ltd
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/28—Floor-scrubbing machines, motor-driven
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4011—Regulation of the cleaning machine by electric means; Control systems and remote control systems therefor
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A47L11/4088—Supply pumps; Spraying devices; Supply conduits
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4097—Means for exhaust-air diffusion; Exhaust-air treatment, e.g. air purification; Means for sound or vibration damping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
    • G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
    • G05D11/131—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Ventilation (AREA)

Abstract

The invention belongs to the field of public facility sanitation, relates to public toilet sanitary equipment, and particularly relates to an intelligent public toilet cleaning system and method. The public toilet cleaning system starts or closes the ammonia exhaust system according to the ammonia concentration detected by the data acquisition module; when the duration that the ammonia exhaust system is in the off state is lower than a specified threshold value, the public toilet cleaning system starts the cleaning system. The system realizes intelligent detection of gas pollution in the public toilet, automatically carries out air exhaust and ventilation and cleaning treatment, and saves manpower. The technical scheme can be applied to the construction practice of intelligent public toilets.

Description

Intelligent cleaning system and method for public toilet
Technical Field
The invention belongs to the field of public facility sanitation, relates to public toilet sanitary equipment, and particularly relates to an intelligent public toilet cleaning system and method.
Background
The public toilet is used as the most basic public service facility, the construction management level and the sanitary cleaning degree of the public toilet play an important role in public health, and the civilized image of a region is reflected. The cleaning and sanitation of public toilets are not only the most basic physiological and health requirements, but also reflect the living standard of people and the subjective requirements of realizing and maintaining personal dignity.
Chinese patent CN207798159U (an intelligent public lavatory health monitoring system) discloses the technical scheme: through ammonia concentration and hydrogen sulfide concentration in ammonia sensor and the hydrogen sulfide sensor monitoring public latrine, when the concentration of ammonia and/or hydrogen sulfide exceeded certain limit, inform the staff to clean the public latrine. However, the above technical solutions have the following problems: (1) the concentration of ammonia and/or hydrogen sulfide exceeds a certain range is not a reliable index for prompting a worker to clean the public toilet, more users are likely to be used in the public toilet in a certain period of time, and the polluted gas is not discharged in time, so that the polluted gas exceeds the standard, and the ground of the public toilet does not need to be cleaned by the worker, so that the problem that the worker is mistakenly prompted to clean the public toilet exists in the scheme in the prior art, and the workload of the worker is increased; (2) when each index of the public toilet exceeds a specified threshold, manual intervention is needed, and the intelligent degree is not high; (3) the sources, nature and production processes of ammonia and hydrogen sulfide are different and prior art solutions do not plan detection and cleaning solutions based on the characteristics of the polluting gases.
Disclosure of Invention
The invention aims to provide an intelligent cleaning system for public toilets, which adopts reliable indexes to judge whether the public toilets need to be cleaned or not and adopts an intelligent means to realize automatic detection and removal of pollutants.
In order to solve the technical problems, the technical scheme of the invention is as follows:
an intelligent cleaning system for public toilets comprises a data acquisition module, a data processing module and an execution module,
the data acquisition module is used for detecting the concentration of polluted gas in a public toilet, wherein the polluted gas comprises ammonia gas; the execution module is used for receiving and executing commands of the data processing module, and comprises an ammonia gas exhaust system and a cleaning system, wherein the cleaning system is used for cleaning the outer side of the toilet and the ground around the toilet;
the data processing module starts or closes the ammonia exhaust system according to the ammonia concentration value detected by the data acquisition module; and when the duration of the closed state of the ammonia gas exhaust system is lower than a specified threshold value, the data processing module starts the cleaning system.
By adopting the technical scheme, the data processing module opens or closes the ammonia exhaust system according to the ammonia concentration value detected by the data acquisition module, and the specific operation mode is as follows: when the ammonia concentration value detected by the data acquisition module exceeds a specified upper limit, the ammonia exhaust system is started to strengthen the gas flow in the public toilet and exchange with air outside the public toilet, so that the ammonia in the public toilet can be effectively exhausted; and the ammonia exhaust system keeps running until the ammonia concentration value detected by the data acquisition module is lower than the specified lower limit, and then the ammonia exhaust system is closed so as to achieve the purpose of saving energy.
For the public toilet which is built according to the national regulation and the ventilation condition of which reaches the standard, when the duration time of the ammonia gas exhaust system in the closed state is lower than the specified threshold value, the ammonia gas can be quickly accumulated as long as the indoor ventilation is not carried out, the indoor pollution source which is not cleaned is reflected, and the air in the public toilet can not reach the standard simply through the exhaust and ventilation. Because the pollution source is not clean, ammonia gas can be continuously generated, and the method of only adopting air exhaust and air exchange is a method for treating the symptoms and not the root causes. Therefore, when the duration of the closed state of the ammonia exhaust system is lower than the specified threshold, the data processing module starts the cleaning system for cleaning the outside of the toilet and the ground around the toilet. The toilet bowl in the present invention refers to a urinal, a squatting pan or a toilet bowl, the outer side of the toilet bowl refers to the outer surface of the urinal or the toilet bowl and the flank portion of the squatting pan, and the outer side of the toilet bowl refers to the portion which cannot be cleaned by the flushing system of the toilet bowl.
The processes are all completed under the control of an intelligent system, the ammonia concentration information is detected through the data acquisition module, the ammonia concentration information is subjected to data processing through the data processing module, the data processing module sends a command to the execution module, and the execution module can automatically perform air exhaust, ventilation and cleaning.
Has the advantages that:
ammonia gas is colorless and tasteless, but has strong irritation, and mild inhalation of ammonia gas has uncomfortable symptoms such as rhinitis, pharyngitis, laryngalgia, hoarseness and the like, and can cause hemoptysis, pulmonary edema, dyspnea and the like in severe cases. The urine is exposed to the air, and bacteria, oxygen and the like in the air act on the urine to decompose urea in the urine to generate ammonia. Ammonia is generated by reaction of urine without timely cleaning and exposure to air. When urine is not discharged into the toilet bowl or the urine in the toilet bowl is not flushed in time, the ammonia content in the public toilet exceeds the standard. If there is a certain amount of urine to exist or remain in public latrine ground or the stool pot outside, can form the pollution sources that the ammonia produced, if not in time clear away, can constantly produce the ammonia, can not only discharge the ammonia through the form of ventilating of airing exhaust, need the cauldron bottom to take out the firewood, clean the pollution sources.
The inventor finds that under the conditions that the ammonia gas exhaust system has no faults and the structure of the public toilet is reasonably designed (particularly meets the requirement of good ventilation condition), the ammonia gas in the public toilet is quickly accumulated and exceeds a specified threshold value when the ammonia gas exhaust system does not operate, which indicates that the pollution source in the public toilet is not cleaned up. The ammonia mainly comes from urine, and the urine contacts with air and reacts for a certain time to generate ammonia. When a user urinates, the urine is sprayed to the outer side of the toilet or the ground around the toilet because of carelessness and cannot be cleaned and removed through a flushing system of the toilet, and the urine sprayed to the outer side of the toilet or the ground around the toilet is convenient for air reaction to continuously generate ammonia gas, so that the ammonia gas becomes a pollution source of air in a public toilet. If the ventilation of the public toilet is only enhanced, only the generated ammonia gas can be discharged, and the pollution source is not eliminated, so the technical scheme needs to find the reason that the ammonia gas in the public toilet frequently exceeds the standard (namely the duration of the closed state of the ammonia gas exhaust system is short), and adopts a mode of cleaning the toilet and the ground around the toilet, thereby fundamentally eliminating the pollution source.
The prior art has adopted the ammonia inductor to detect the ammonia and just indicate the workman to come the mode clean that exceeds standard, perhaps the mode that the staff cleaned the public latrine regularly. The mode has more problems, for example, the workload of workers is increased, and the excessive prompt of the ammonia gas sensor does not necessarily indicate that a residual pollution source exists in a public toilet. In this technical scheme, when the ammonia concentration that data acquisition module surveyed is higher than the regulation upper limit of public latrine ammonia concentration, open ammonia exhaust system, when the ammonia concentration that data acquisition module surveyed is less than the regulation lower limit of public latrine ammonia concentration, close ammonia exhaust system, avoided extravagant labour, can not just use the staff to clean in case the ammonia exceeds standard. And when the duration of the closed state of the ammonia exhaust system is lower than a specified threshold value, the data processing module starts the cleaning system, and the technical scheme finds out the reason that the ammonia exhaust system is stopped so that the ammonia exceeds the standard time quickly, namely that a pollution source in a public toilet needs to be cleaned.
In conclusion, the beneficial effects are that:
(1) 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;
(2) whether the pollution source in the public toilet needs cleaning is judged by adopting the parameter of the duration time of the closed state of the ammonia exhaust system, and the condition of urine residue on the ground of the public toilet or on the outer side of the toilet can be accurately reflected.
Furthermore, the data acquisition module is also used for detecting the occupation condition of a toilet stool in a public toilet, the cleaning system in the execution module comprises spray heads arranged on two sides of the toilet stool, and the spray heads are used for washing the outer side of the toilet stool and the ground around the toilet stool; when the duration of the closed state of the ammonia gas exhaust system is lower than a specified threshold value, the data processing module calls the occupation condition information of the toilet stool in the data acquisition module, and when the toilet stool is not used by people, the data processing module opens the spray head corresponding to the toilet stool which is not used by people.
By adopting the technical scheme, the cleaning of pollution sources outside the toilet and on the ground around the toilet by flushing with the spray header is a relatively conventional and safe method. Before cleaning operation, whether the toilet is used by people is firstly detected, so that the condition that the spray head is opened to wet the users is avoided.
Further, the data acquisition module comprises a gas concentration sensing terminal and a human body infrared sensing terminal;
the gas concentration sensing terminal is used for detecting the concentration of ammonia in a public toilet and 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 the ammonia concentration information to the STC single chip microcomputer, and the STC single chip microcomputer controls the LoRa wireless module to send the ammonia concentration information to the data processing module;
the human body infrared induction terminal is used for detecting the occupation condition of the toilet and comprises a human body infrared inductor, an STC single chip microcomputer and a LoRa wireless communication module; the human body infrared inductor is fixedly arranged above the toilet stool, and is used for detecting the occupied condition information of the toilet stool and transmitting the electric signal to the STC single chip microcomputer which controls the LoRa wireless communication module to send the information to the data processing module.
By adopting the technical scheme, the gas concentration sensing terminal and the human body infrared sensing terminal are mature technologies in the prior art, and the detection of the ammonia gas concentration and the detection of whether a person moves nearby the toilet can be accurately and reliably realized.
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 human body infrared sensor is fixedly arranged above the toilet stool, and can detect whether the toilet stool is used by people or not by detecting human body infrared signals.
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 the command signal from the data processing module, transmits the command signal to the STC single chip microcomputer, and the STC single chip microcomputer controls the relay to open or close the ventilation fan after processing the command signal.
The cleaning system also comprises a LoRa wireless communication module, an STC single chip microcomputer and an electromagnetic valve; the LoRa wireless communication module receives the command signal from the data processing module, transmits the command signal to the STC single chip microcomputer, and the STC single chip microcomputer controls the electromagnetic valve to open or close the spray header after processing the command signal.
By adopting the technical scheme, under the condition that the ammonia concentration exceeds the standard or a pollution source in a public toilet needs to be cleaned, intelligent air exhaust and air exchange and pollution source cleaning 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 processed by the STC single chip microcomputer and then shows the information represented by the signal to workers on display equipment.
By adopting the technical scheme, the execution module is provided with the staff terminal, the staff can know the sanitary condition in the public toilet in time and decide whether to manually clean 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.
Furthermore, a carrying net is detachably and fixedly connected to the water spraying end of the spray head, and a slow-release deodorant is contained in the carrying net.
By adopting the technical scheme, the slow-release deodorant is arranged in front of the spray head, and the water sprayed by the spray head can be used for carrying fragrant substances in the slow-release deodorant, so that the effects of enhancing the fragrance of air and covering the odor in public toilets are achieved while stains on the outer side of the toilet and the ground around the toilet are cleaned.
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 in the public toilet is arranged in a compartment with a compartment door, the hydrogen sulfide concentration sensor is used for detecting the concentration information of hydrogen sulfide gas in the compartment and transmitting the concentration information of the hydrogen sulfide gas to the STC single chip microcomputer, and the LoRa wireless communication module sends the concentration information of the hydrogen sulfide gas to the data processing module after the concentration information of the hydrogen sulfide gas is processed by the STC single chip microcomputer;
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 is used for monitoring data detected by the hydrogen sulfide concentration detection unit and sending a command to the hydrogen sulfide exhaust system, when the concentration of hydrogen sulfide detected by the hydrogen sulfide concentration sensor is higher than the specified upper limit of the concentration of hydrogen sulfide in a public toilet, the ventilation fan of the compartment detected by the hydrogen sulfide concentration sensor is started, and when the concentration of hydrogen sulfide detected by the hydrogen sulfide concentration sensor is lower than the specified lower limit of the concentration of hydrogen sulfide in the public toilet, the ventilation fan of the compartment detected by the hydrogen sulfide concentration sensor is closed.
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 compartment door is interior open type, the hydrogen sulfide concentration sensor is fixed on the compartment door, the hydrogen sulfide concentration sensor is used for detecting the concentration of hydrogen sulfide gas in the compartment when the compartment door is opened, and when the compartment door is closed, the detection end of the hydrogen sulfide concentration sensor is covered by the flexible piece.
By adopting the technical scheme, before a user uses the toilet, the compartment door is in an inward opening state, the hydrogen sulfide concentration sensor can detect the concentration information of hydrogen sulfide gas in the compartment, if the concentration of the hydrogen sulfide gas in the compartment exceeds the specified upper limit, the data processing module starts the ventilation fan of the compartment to exhaust odor gas until the concentration of the hydrogen sulfide gas in the compartment is lower than the specified upper limit, and the data processing module controls the ventilation fan for closing the compartment to build a 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. After a user uses the toilet, the compartment door is opened, the hydrogen sulfide concentration sensor starts to detect the concentration of hydrogen sulfide gas in the compartment, and if the hydrogen sulfide gas exceeds the specified upper limit, the fan corresponding to the compartment is started to clean dirty air in time.
When the user was like the lavatory, closed the compartment door, the detection end of hydrogen sulfide concentration inductor is covered by the flexible piece and has hindered the air flow before the detection end, has prevented the further gas sampling of hydrogen sulfide concentration inductor, and the hydrogen sulfide gas concentration information of its collection also will be less than the regulation lower limit, and the scavenger fan can be closed to the data processing module, builds quiet environment for the user. In addition, in the process of closing the compartment door, the flexible piece contacts and moves relative to the detection end of the hydrogen sulfide concentration sensor, and the flexible piece rubs the detection end, so that the effect of cleaning the detection end is achieved.
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, a cleaning method of the intelligent cleaning system for the public toilet is characterized in that when the ammonia gas concentration detected by the data acquisition module is higher than the specified upper limit of the ammonia gas concentration in the public toilet, the ammonia gas exhaust system is started; when the ammonia concentration detected by the data acquisition module is lower than the specified lower limit of the ammonia concentration of the public toilet, closing the ammonia exhaust system; and when the duration of the closed state of the ammonia gas exhaust system is lower than a specified threshold value, the data processing module starts the cleaning system.
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; whether the pollution source in the public toilet needs cleaning is judged by adopting the parameter of the duration time of the closed state of the ammonia exhaust system, and the condition of urine residue on the ground of the public toilet or on the outer side of the toilet can be accurately reflected.
Drawings
FIG. 1 is a flow chart of the work of the intelligent cleaning system for public latrine of the 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 shows a hydrogen sulfide gas detection unit structure according to example 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:
the utility model provides an intelligent clean system of public latrine, includes data acquisition module, data processing module and execution module, specifically describes with regard to each module below:
data acquisition module
The data acquisition module comprises two types of terminals: gas concentration sensing terminal and human infrared induction terminal. 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 (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; the human body infrared induction terminal comprises a human body infrared inductor, an STC single chip microcomputer, a power supply and a LoRa wireless communication module. The ammonia concentration sensor is used for detecting the ammonia concentration in the public toilet, and the human body infrared sensor is used for detecting the condition that the toilet is occupied by a user. The toilet comprises a urinal, a squatting pan and a pedestal pan, wherein the human body infrared sensor is fixedly arranged above the pedestal pan, and the ammonia concentration sensor is fixedly suspended on a ceiling of a 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. The human body infrared sensor detects whether the toilet stool is used currently or not, the high and low levels representing whether the toilet stool is used or not are transmitted to the STC single chip microcomputer corresponding to the human body infrared sensor, and the STC single chip microcomputer controls the LoRa wireless communication module to send information to the data processing module through the human body infrared sensing terminal.
Execution module
The execution module comprises an ammonia exhaust system, a cleaning system and a staff terminal. The ammonia air exhaust and ventilation system comprises a LoRa wireless communication module, an STC single chip microcomputer, a relay, a power supply and a ventilation fan; the cleaning system comprises a LoRa wireless communication module, an STC single chip microcomputer, an electromagnetic valve, a power supply and a spray header; the staff terminal includes display device, loRa wireless communication module 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 cleaning 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 cleaning system, transmits the command signal to the STC single chip microcomputer, and controls the electromagnetic valve corresponding to the STC single chip microcomputer to open and close the spray header after the STC single chip microcomputer processes the command signal. The shower head is fixed in every stool pot both sides, and the solenoid valve of shower head is opened the time and is sprayed water towards the stool pot, and the height of shower head is less than the height of ammonia concentration inductor to avoid the water logging to wet ammonia concentration inductor, influence gas concentration measurement effect. The water spray of shower head is served detachably and is fixed with and carries the thing net (carry thing net and shower head block), carries to put in the thing net and removes flavor gel, and the shower head can be through the water spray clean stool pot and the ground around the stool pot outside, can also remove the flavor matter in the flavor gel so as to reach the purpose that restraines the peculiar smell and produce through water carrying. In this example, the deodorizing gel (Xinbaueru, XBL-MTNJ) was changed weekly to ensure the deodorizing effect of the gel. 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.
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 the ammonia concentration information transmitted from the gas concentration sensing terminal, the STM microcontroller 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 calculation is finishedWhen the ammonia concentration value is higher than the specified upper limit of the ammonia concentration of the public toilet, 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 closed state is lower than a specified threshold (in the embodiment, the specified threshold is 20min), the STM microcontroller starts to monitor signals transmitted by the human body infrared sensor and judges whether the toilet is used or not, and when the toilet corresponding to the infrared sensor is judged to be not used by a person, the STM microcontroller sends a command of opening the spray header; when judging for someone uses the stool pot that infrared inductor corresponds, STM microcontroller keeps monitoring the signal that human infrared inductor transmitted to judge whether the stool pot is being used, and until the stool pot that infrared inductor corresponds is unmanned to be used, STM microcontroller sends the order of opening the shower head. The spray header stops automatically after working for 3min, and the STM microcontroller sends a signal to the staff terminal to prompt that the toilet is sprayed and needs to be sorted by the staff according to the situation.
The specific implementation process comprises the following steps: the flow of using the system to clean the public toilet is shown in figure 1, 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 an STM microcontroller in the data processing module 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. 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 closed condition is less than the regulation threshold value, STM microcontroller begins the signal that human infrared inductor transmitted to judge whether the stool pot is being used, when judging for unmanned stool pot that corresponds of using this infrared inductor, STM microcontroller sends the order of opening the shower head, washs the ground around outside the stool pot and the stool pot.
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 concentration inductor 6 passes through the cable and is connected with the electrical component in the component box 7. 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. SulfurThe 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 at the position 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.
Example 4:
this embodiment is basically the same as embodiment 1 except that: this embodiment does not be equipped with the cleaning system who has the function of spraying, and when the duration that ammonia exhaust system is in the closed condition was less than the specified value (specified value is 30min in this embodiment), the STC chip that corresponds with ammonia exhaust system sent the signal to data processing module, and STM microcontroller directly sends the signal to staff's terminal after receiving the signal, and the notice staff cleans public latrine ground and the stool pot outside, and the manual cleaning is more water economy resource than using the shower head.
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. An intelligent cleaning system for public toilets, which comprises a data acquisition module, a data processing module and an execution module and is characterized in that,
the data acquisition module is used for detecting the concentration of polluted gas in a public toilet, wherein the polluted gas comprises ammonia gas; the execution module is used for receiving and executing commands of the data processing module, and comprises an ammonia gas exhaust system and a cleaning system, wherein the cleaning system is used for cleaning the outer side of the toilet and the ground around the toilet;
the data processing module starts or closes the ammonia exhaust system according to the ammonia concentration value detected by the data acquisition module; when the duration of the closed state of the ammonia gas exhaust system is lower than a specified threshold value, the data processing module starts the cleaning system;
the data acquisition module comprises a gas concentration sensing terminal, an ammonia concentration detection unit and a hydrogen sulfide concentration detection unit;
the hydrogen sulfide concentration detection unit comprises a hydrogen sulfide concentration sensor, an STC chip and a LoRa wireless communication module; the toilet in the public toilet is arranged in a compartment with a compartment door, the hydrogen sulfide concentration sensor is used for detecting the concentration information of hydrogen sulfide gas in the compartment and transmitting the concentration information of the hydrogen sulfide gas to the STC single chip microcomputer, and the LoRa wireless communication module sends the concentration information of the hydrogen sulfide gas to the data processing module after the concentration information of the hydrogen sulfide gas is processed by the STC single chip microcomputer;
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 is used for monitoring data detected by the hydrogen sulfide concentration detection unit and sending a command to the hydrogen sulfide exhaust system, when the concentration of hydrogen sulfide detected by the hydrogen sulfide concentration sensor is higher than the specified upper limit of the concentration of hydrogen sulfide in a public toilet, the ventilation fan of the compartment detected by the hydrogen sulfide concentration sensor is started, and when the concentration of hydrogen sulfide detected by the hydrogen sulfide concentration sensor is lower than the specified lower limit of the concentration of hydrogen sulfide in the public toilet, the ventilation fan of the compartment detected by the hydrogen sulfide concentration sensor is closed;
the compartment door is the in-opening door, the hydrogen sulfide concentration sensor is fixed on the compartment door, the hydrogen sulfide concentration sensor is used for detecting the hydrogen sulfide gas concentration in the compartment when the compartment door is opened, and when the compartment door is closed, the detection end of the hydrogen sulfide concentration sensor is covered by the flexible piece.
2. The intelligent public toilet cleaning system according to claim 1, wherein the data acquisition module is further used for detecting the occupancy of a toilet stool in the public toilet, and the cleaning system in the execution module comprises spray headers arranged at two sides of the toilet stool, and the spray headers are used for flushing the outer side of the toilet stool and the ground around the toilet stool; when the duration of the closed state of the ammonia gas exhaust system is lower than a specified threshold value, the data processing module calls the occupation condition information of the toilet stool in the data acquisition module, and when the toilet stool is not used by people, the data processing module opens the spray head corresponding to the toilet stool which is not used by people.
3. The intelligent cleaning system for public toilets according to claim 2, wherein the data acquisition module further comprises a human body infrared induction terminal;
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 the ammonia concentration information to the STC single chip microcomputer, and the STC single chip microcomputer controls the LoRa wireless module to send the ammonia concentration information to the data processing module;
the human body infrared induction terminal is used for detecting the occupation condition of the toilet and comprises a human body infrared inductor, an STC single chip microcomputer and a LoRa wireless communication module; the human body infrared inductor is fixedly arranged above the toilet stool, and is used for detecting the occupied condition information of the toilet stool and transmitting the electric signal to the STC single chip microcomputer which controls the LoRa wireless communication module to send the information to the data processing module.
4. The intelligent cleaning system for the public toilets according to claim 2 or 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 and transmits the command signal to the STC single chip microcomputer, and the STC single chip microcomputer controls the relay to open or close the ventilation fan after processing the command signal;
the cleaning system also comprises a LoRa wireless communication module, an STC single chip microcomputer and an electromagnetic valve; the LoRa wireless communication module receives the command signal from the data processing module, transmits the command signal to the STC single chip microcomputer, and the STC single chip microcomputer controls the electromagnetic valve to open or close the spray header after processing the command signal.
5. The intelligent public toilet cleaning system according to claim 4, wherein the execution module further comprises a staff terminal, and the staff terminal comprises 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 processed by the STC single chip microcomputer and then shows the information represented by the signal to workers on display equipment.
6. An intelligent public toilet cleaning system as claimed in 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 cleaning system for the public toilets according to claim 6, wherein a carrying net is detachably and fixedly connected to the water spraying end of the spray head, and a slow-release deodorant is contained in the carrying net.
8. The cleaning method of the intelligent cleaning system for the public toilets according to claim 7, wherein when the ammonia gas concentration detected by the data acquisition module is higher than the specified upper limit of the ammonia gas concentration in the public toilets, the ammonia gas exhaust system is started; when the ammonia concentration detected by the data acquisition module is lower than the specified lower limit of the ammonia concentration of the public toilet, closing the ammonia exhaust system; and when the duration of the closed state of the ammonia gas exhaust system is lower than a specified threshold value, the data processing module starts the cleaning system.
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