CN110792143A - Toilet bowl deodorization method and toilet bowl - Google Patents

Abstract

The invention provides a toilet bowl deodorization method and a toilet bowl, wherein the toilet bowl comprises a gas detection device, a processing unit and an air extraction device, the method comprises the steps that the gas detection device obtains the concentration of odor in a region where the gas detection device is located, and the odor comprises ammonia gas and hydrogen sulfide; the processing unit acquires odor concentration, and determines whether the odor concentration is greater than or equal to a preset threshold value; when the odor concentration is greater than or equal to the preset threshold value, the processing unit sends a control instruction for indicating the air extracting device to extract air according to the preset air pressure. According to the toilet bowl deodorization method and the toilet bowl, the odor concentration in the area is obtained through the gas detection device, the processing unit determines whether the odor concentration is larger than or equal to the preset threshold value, and when the odor concentration is larger than or equal to the preset threshold value, the processing unit sends a control instruction for indicating the air exhaust device to exhaust air according to the preset air pressure, so that odor generated when a user urinates and defecates can be removed in time, and air is kept fresh.

Description

Toilet bowl deodorization method and toilet bowl

Technical Field

The invention relates to the technical field of toilets, in particular to a toilet deodorization method and a toilet.

Background

The toilet bowl is the bathroom equipment that uses widely at present, in order to satisfy people can have the demand of a fresh air when like the lavatory, the toilet bowl needs to possess the deodorization function. The function of the prior art toilet deodorizing device is usually set to be opened when a user sits on the toilet or flushes the toilet. In some other occasions, if the male user uses the toilet bowl to urinate, there is not the condition of taking a seat, and the function can not be opened, so the existence of foul smell brings the puzzlement for the user, is difficult to satisfy the energy-conserving demand, often the user complains the function comparatively chicken rib, and the deodorization effect is not good.

Disclosure of Invention

The invention aims to provide a toilet bowl deodorization method and a toilet bowl, and aims to solve the problems. The embodiment of the invention achieves the aim through the following technical scheme.

In a first aspect, the invention provides a toilet bowl deodorization method, wherein the toilet bowl comprises a gas detection device, a processing unit and an air extraction device, the method comprises the steps that the gas detection device obtains the concentration of odor in a region where the gas detection device is located, and the odor comprises ammonia gas and hydrogen sulfide; the processing unit acquires odor concentration, and determines whether the odor concentration is greater than or equal to a preset threshold value; when the odor concentration is greater than or equal to the preset threshold value, the processing unit sends a control instruction for indicating the air extracting device to extract air according to the preset air pressure.

In one embodiment, when the concentration of the odor is greater than or equal to the preset threshold, the processing unit sends a control instruction for instructing the air extractor to start extracting air at a predetermined air pressure, and the method includes: when the odor concentration is greater than or equal to the preset threshold value, the processing unit determines the air exhaust negative pressure according to the current odor concentration, and sends a control instruction according to the air exhaust negative pressure for instructing the air exhaust device to open air exhaust according to the preset air exhaust negative pressure.

In one embodiment, the processing unit is pre-stored with a mapping relation table, and the mapping relation table comprises a mapping relation between an odor concentration value and an air exhaust negative pressure; the processing unit determines the air exhaust negative pressure according to the current odor concentration, and sends a control instruction according to the air exhaust negative pressure, and the method comprises the following steps: and inquiring the mapping relation table according to the current odor concentration to obtain the corresponding air extraction negative pressure, and sending a control instruction according to the obtained air extraction negative pressure.

In one embodiment, the processing unit includes a PID regulator, and the processing unit determines the suction negative pressure according to the current odor concentration, and sends a control instruction according to the suction negative pressure, including: the processing unit determines the air extraction negative pressure according to the current odor concentration, and the PID regulator modulates a pulse signal with a pulse width corresponding to the air extraction negative pressure according to the air extraction negative pressure and sends the pulse signal as a control instruction.

In one embodiment, the method further comprises: and when the odor concentration is less than the preset threshold value, sending a stop control instruction, wherein the stop control instruction is used for indicating the air exhaust device to stop exhausting air.

In one embodiment, the preset thresholds include a first preset threshold and a second preset threshold, and the odor concentration includes an ammonia concentration and a hydrogen sulfide concentration; when the odor concentration is greater than or equal to a preset threshold value, the processing unit sends a control instruction, and the control instruction comprises the following steps: and when the concentration of the ammonia gas is greater than or equal to a first preset threshold value, or when the concentration of the hydrogen sulfide is greater than or equal to a second preset threshold value, the processing unit sends a control instruction.

In a second aspect, the invention also provides a toilet bowl, which comprises a gas detection device, a processing unit and an air exhaust device. The gas detection device is used for obtaining the concentration of odor in the area, and the odor comprises ammonia gas and hydrogen sulfide. The processing unit is used for obtaining the odor concentration, determining whether the odor concentration is larger than or equal to a preset threshold value or not, and sending a control instruction when the odor concentration is larger than or equal to the preset threshold value. The air extracting device is used for receiving the control instruction and extracting air according to the control instruction and preset air pressure.

In one embodiment, the processing unit sends a control instruction for instructing the air exhaust device to start air exhaust at a predetermined air pressure when the odor concentration is greater than or equal to a preset threshold value by: when the odor concentration is greater than or equal to the preset threshold value, the processing unit determines the air exhaust negative pressure according to the current odor concentration, and sends a control instruction according to the air exhaust negative pressure for instructing the air exhaust device to open air exhaust according to the preset air exhaust negative pressure.

In one embodiment, the processing unit is pre-stored with a mapping relation table, and the mapping relation table comprises a mapping relation between an odor concentration value and an air exhaust negative pressure; the processing unit determines the air exhaust negative pressure according to the current odor concentration and sends a control instruction according to the air exhaust negative pressure according to the following steps: and inquiring the mapping relation table according to the current odor concentration to obtain the corresponding air extraction negative pressure, and sending a control instruction according to the obtained air extraction negative pressure.

In one embodiment, the preset thresholds include a first preset threshold and a second preset threshold, and the odor concentration includes an ammonia concentration and a hydrogen sulfide concentration; the processing unit sends a control instruction when the odor concentration is greater than or equal to a preset threshold according to the following steps: and when the concentration of the ammonia gas is greater than or equal to a first preset threshold value, or when the concentration of the hydrogen sulfide is greater than or equal to a second preset threshold value, the processing unit sends a control instruction.

Compared with the prior art, the deodorization method of the toilet and the toilet provided by the invention have the advantages that the odor concentration in the area is obtained through the gas detection device, the processing unit determines whether the odor concentration is greater than or equal to the preset threshold value, and when the odor concentration is greater than or equal to the preset threshold value, the processing unit sends a control instruction for instructing the air exhaust device to exhaust air according to the preset air pressure, so that the odor generated when a user urinates and defecates can be removed in time, and the air is kept fresh.

Drawings

In order to more clearly illustrate the technical solution in the present embodiment, the drawings needed to be used in the description of the embodiment will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a gas detection device, a processing unit and an air extractor of a toilet bowl provided by an embodiment of the invention.

Fig. 2 is a schematic structural view of a toilet bowl provided by the embodiment of the invention in one state.

Fig. 3 is a schematic structural view of a toilet bowl provided by the embodiment of the invention in another state.

FIG. 4 is a sectional view of a toilet body of a toilet stool according to an embodiment of the present invention.

FIG. 5 is a schematic structural view of a toilet bowl according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a toilet bowl according to another embodiment of the present invention.

Fig. 7 is a flowchart of a toilet bowl deodorization method according to an embodiment of the present invention.

FIG. 8 is a block diagram of a toilet bowl provided by an embodiment of the present invention.

Detailed Description

To facilitate an understanding of the present embodiments, the present embodiments will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

The inventor of this application discovers, and current toilet bowl is mostly when the user takes a seat or washes by water just opens the stool pot deodorization, like the male sex user uses the toilet bowl urine under other circumstances, does not have the condition of taking a seat, and the function can not be opened, therefore the existence of foul smell has brought the puzzlement for the user, is difficult to satisfy energy-conserving demand. In addition, the existing toilet bowl has an unsatisfactory deodorizing effect. The inventor of the present application has therefore proposed a toilet bowl deodorizing method and toilet bowl of the present application, and embodiments of the present application will be described in detail below with reference to the accompanying drawings.

In this embodiment, the toilet may be a toilet bowl or a toilet bowl. In another embodiment, the toilet may be a device having a function of disposing excrement, such as a squatting pan or a urinal.

Referring to fig. 1 and 2 together, the present invention provides a toilet bowl 10, including a gas detection device 130, a processing unit 140 and an air extractor 150, wherein the gas detection device 130 is used to obtain the concentration of the odor in the area, and the odor includes ammonia and hydrogen sulfide; the processing unit 140 is configured to obtain an odor concentration, and the processing unit 140 determines whether the odor concentration is greater than or equal to a preset threshold; when the odor concentration is greater than or equal to the preset threshold, the processing unit 140 sends a control instruction; the air extracting device 150 is used for receiving the control instruction and extracting air according to the control instruction and preset air pressure.

Referring to fig. 1, 2 and 3 together, in detail, the toilet bowl 10 includes a toilet bowl body 100, a seat 110, a cover 120, a gas detecting device 130, a processing unit 140 and a suction device 150, wherein the seat 110 and the cover 120 are rotatably connected to the toilet bowl body 100, and the seat 110 is located between the toilet bowl body 100 and the cover 120. The gas detection device 130, the processing unit 140 and the air exhaust device 150 may cooperate to remove odor generated when the user urinates or defecates, and keep the air fresh. In this embodiment, the gas detecting device 130, the processing unit 140 and the air extracting device 150 are all disposed on the toilet body 100.

In other embodiments, the gas detection device 130, the processing unit 140, the air extractor 150, and the deodorizer 156 may be disposed on the cover 120 to satisfy the deodorizing function of the toilet bowl 10.

Referring to fig. 4, the toilet body 100 has a bowl 101, and a sewer pipe 102 communicating with the bowl 101. The urinal 101 is a cavity structure with an opening 1012 at the top and a drain 1014 at the bottom. The bowl 101 is a funnel-type bowl 101, i.e., the aperture of the opening 1012 is larger than the aperture of the drain 1014. Further, the shape of the opening 1012 may be an ellipse, a circle, an irregular shape, or the like, and is not particularly limited herein. Likewise, the shape of the drain 1014 may be oval, circular, irregular, etc., and is not particularly limited herein. The drain 1014 is used to communicate with the sewer pipe 102 to facilitate the discharge of dirt from the sewer pipe 102.

The sewer pipe 102 is communicated with the drain 1014, the shape and the size of the communication part of the sewer pipe 102 and the drain 1014 are matched with the drain 1014, and the sewer pipe 102 is used for discharging the sewage discharged from the drain 1014 of the toilet bowl 101 out of the toilet bowl 10. In fig. 4, the position of the drain port 1014 is indicated by a dotted line, and is not particularly limited.

The race 110 has a generally oval configuration, the race 110 includes a bearing surface and an abutment surface facing away from each other, and the race 110 further has a through hole extending through the bearing surface and the abutment surface. The bearing surface is used for bearing the buttocks of a user during the use of the seat 110, and the abutting surface is used for abutting against the pedestal pan body 100 and being installed on the pedestal pan body 100 during the use of the seat 110.

The cover plate 120 has a shape substantially the same as that of the seat 110, and the cover plate 120 may cover the seat 110 to shield the through-hole of the seat 110 when the toilet stool 10 is not in use, thereby reducing the escape of offensive odors inside the sewage or the toilet stool 10.

In this embodiment, the gas detection device 130 may be mounted to the toilet body 100 for obtaining the concentration of the odor in the area, and the concentration of the odor may include the concentration of ammonia and the concentration of hydrogen sulfide. The gas detection device 130 may include a hydrogen sulfide detection device and an ammonia gas detection device, wherein the hydrogen sulfide detection device is configured to identify and detect the concentration of hydrogen sulfide, and convert the concentration of hydrogen sulfide into an electrical signal to be fed back to the processing unit 140. The ammonia gas detection device is used for identifying and detecting the concentration of ammonia gas, converting the concentration of ammonia gas into an electric signal and feeding the electric signal back to the processing unit 140. The hydrogen sulfide detection device can set a preset threshold value to measure the actual hydrogen sulfide concentration. The ammonia gas detection device can also set a preset threshold value to measure the actual ammonia gas concentration.

The gas detection device 130 may be, for example, an infrared gas detector, a thermomagnetic gas detector, an electrochemical gas detector, a semiconductor gas detector, or an ultraviolet gas detector embedded in the toilet bowl body 100, and the gas detection device 130 may include a gas sensor, so that the gas sensor may detect the components and content of the gas. The gas detection device 130 can identify the two odor components, detect the concentration of the gas in the air, and convert the concentration into an electrical signal to be fed back to the processing unit 140 through the communication module.

In the present embodiment, the processing unit 140 is configured to obtain the odor concentration, and the processing unit 140 determines whether the odor concentration is greater than or equal to a preset threshold, where the preset threshold includes a first preset threshold and a second preset threshold. When the odor concentration is greater than or equal to the preset threshold, the processing unit 140 sends a control instruction. When the ammonia gas concentration is greater than or equal to the first preset threshold, or when the hydrogen sulfide concentration is greater than or equal to the second preset threshold, the processing unit 140 sends the control instruction. As an example, the first preset threshold may be 0.1ppm and the second preset threshold may be 0.0005 ppm. The processor unit may send control instructions based on any odor concentration.

In this embodiment, the processing unit 140 may also be mounted on the toilet body 100, the processing unit 140 may be electrically connected to the gas detection device 130, the processing unit 140 may perform corresponding digital signal processing by receiving a signal fed back by the gas detection device 130, compare and analyze the odor concentration acquired in real time with the threshold concentration, and according to the analysis result, the processing unit 140 sends a control instruction for instructing the air extractor 150 to operate.

In some embodiments, the processing unit 140 includes a PID (proportional-integral-derivative) regulator, and the processing unit 140 determines the suction negative pressure according to the current odor concentration. The PID regulator modulates a pulse signal having a pulse width corresponding to the suction negative pressure according to the suction negative pressure, and sends the pulse signal as a control command.

Referring to fig. 5, in the embodiment, the air extractor 150 may also be installed on the toilet body 100, and the air extractor 150 may be electrically connected to the processing unit 140 to receive the control instruction of the processing unit 140 and extract air according to a predetermined air pressure according to the control instruction to reduce the concentration of the odor such as ammonia gas or hydrogen sulfide.

The air extraction device 150 comprises a deodorizing fan 152 and an air extraction duct 154, wherein the air extraction duct 154 has an air inlet 1541 and an air outlet 1543 opposite to the air inlet 1541. In the present embodiment, the air inlet 1541 faces the bowl 101 of the toilet bowl body 100, and the air inlet 1541 may be provided in an open shape, for example, a circular hole. The air outlet 1543 may be communicated with the sewer pipe 102, so that the odor may be directly discharged to the sewer pipe 102 without an additional air outlet pipe.

Referring to fig. 6, in other embodiments, the air inlet 1541 may also be disposed on a side of the seat 110 facing the toilet body 100.

In other embodiments, the intake 1541 may be a hole having a regular shape such as a square hole, an elliptical hole, or a triangular hole, or may be a hole having an irregular shape such as a special hole.

In other embodiments, the inlet 1541 may not be an open port, for example, the inlet 1541 may be formed by a plurality of spaced apart holes to form a mesh port.

In other embodiments, a structure such as a screen may be further disposed at the air inlet 1541, so that the air can be ensured to pass through, and at the same time, the influence of the flushing water on the air exhaust duct 154 can be reduced to some extent, for example, the amount of water splashed into the air exhaust duct 154 is reduced, so as to reduce the damage to the deodorization fan 152 and prolong the service life of the deodorization fan 152.

In other embodiments, a non-return valve 159 may be provided in the air extraction conduit 154 to prevent the backflow of odors and other gases in the sewer line 102 from affecting the user's toilet environment.

The deodorization fan 152 is disposed in the air exhaust duct 154, and the deodorization fan 152 may be directly installed on an inner wall of the air exhaust duct 154, for example, the deodorization fan 152 may be clamped in the air exhaust duct 154, and the deodorization fan 152 may be fixed in the air exhaust duct 154 by a fixing member or the like.

The suction device 150 further includes a deodorizer 156, and the deodorizer 156 is disposed in the suction duct 154. In the present embodiment, the deodorizing agent 156 is provided on the side of the deodorizing fan 152 near the air inlet 1541 to directly adsorb odor such as ammonia gas or hydrogen sulfide. The odor control agent 156 may be activated carbon. In other embodiments, the odor control agent 156 may also be a deodorizing catalyst or a mixture of activated carbon and deodorizing catalyst. In other embodiments, the odor control agent 156 may also include other materials that perform the same function, such as fragrance.

In other embodiments, the odor control agent 156 is disposed on a side of the odor control fan 152 proximate the air outlet 1543 to reduce the effects of moisture on the odor control agent 156, such as moisture that may diminish the odor control effect of the odor control agent 156.

In other embodiments, the air extracting device 150 further includes a storage box 158, the storage box 158 is fixed to the toilet body 100, the storage box 158 encloses the air extracting duct 154, and the deodorizing fan 152 is disposed in the air extracting duct 154.

Referring to fig. 7, the present embodiment provides a toilet deodorization method, which can be applied to the toilet described above, and the method includes the following steps:

step S110: the gas detection device acquires the concentration of odor in the area, wherein the odor comprises ammonia gas and hydrogen sulfide.

In this embodiment, the odor includes ammonia gas and hydrogen sulfide, wherein the ammonia gas in the odor is mainly from urine, while the excrement and the exhaust gas discharged from the anus mainly contain hydrogen sulfide, and the ammonia gas and the hydrogen sulfide in high concentration are harmful to human body and need to be treated.

In this embodiment, the odor can be detected by the gas detection device by diffusion. In other embodiments, the odor may be sent to the gas detection device by some air extraction device such as a fan, so as to increase the detection speed of the odor concentration.

Step S120: the processing unit acquires the odor concentration, and the processing unit determines whether the odor concentration is greater than or equal to a preset threshold value;

wherein obtaining the concentration of the odor gas may be placing the treatment unit in the odor gas or, alternatively, using a device such as an exhaust fan to carry the odor gas to the processor unit.

In this embodiment, the processing unit may obtain the ammonia gas concentration and the hydrogen sulfide concentration respectively, and when at least one of the ammonia gas concentration and the hydrogen sulfide concentration is greater than or equal to a preset threshold, the processing unit determines that the odor gas concentration is greater than or equal to the preset threshold.

As an example, the threshold concentrations of ammonia gas and hydrogen sulfide gas determined by experiments to be 0.1ppm (parts per million concentration) and 0.0005ppm, respectively, in the area where the human body does not feel noticeable, may be stored by the gas detection device as the preset threshold values. When the human body carries out defecation, when the gas detection device detects that the ammonia concentration is larger than or equal to 0.1ppm or the hydrogen sulfide concentration is larger than or equal to 0.0005ppm or the ammonia concentration is larger than or equal to 0.1ppm and the hydrogen sulfide concentration is larger than or equal to 0.0005ppm, the processing unit determines that the odor concentration is larger than or equal to a preset threshold value.

In other embodiments, the concentration of the odor gas may be a total concentration of the ammonia gas and the hydrogen sulfide, that is, the processing unit determines that the concentration of the odor gas is greater than or equal to a preset threshold value only when the total concentration of the ammonia gas and the hydrogen sulfide is greater than or equal to the preset threshold value.

As an example, the preset threshold concentration is 0.1ppm +0.005 ppm-0.1005 ppm, and the processing unit determines that the concentration of the malodor is greater than or equal to the preset threshold value when the total concentration of the malodor is greater than or equal to 0.1005 mmp.

The processing unit may determine whether the concentration of the odor is greater than or equal to a preset threshold by comparing the concentration of the odor with the preset threshold.

Step S130: when the odor concentration is greater than or equal to a preset threshold value, the processing unit sends a control instruction for indicating the air extracting device to extract air according to preset air pressure.

In one embodiment, when the ammonia gas concentration is greater than or equal to a preset threshold, the processing unit sends a control instruction for instructing the air exhaust device to exhaust air according to a preset air pressure.

In one embodiment, when the concentration of hydrogen sulfide is greater than or equal to a preset threshold value, the processing unit sends a control instruction for instructing the air exhaust device to exhaust air at a preset air pressure.

In one embodiment, when the total concentration of the ammonia gas and the hydrogen sulfide is greater than or equal to a preset threshold value, the processing unit sends a control instruction for instructing the air exhaust device to exhaust air at a preset air pressure.

In one embodiment, when the concentration of ammonia is greater than or equal to a preset threshold and the concentration of hydrogen sulfide is also greater than or equal to the preset threshold, the processing unit sends a control instruction for instructing the air exhaust device to exhaust air according to a predetermined air pressure.

In some embodiments, when the odor concentration is greater than or equal to a preset threshold, the processing unit determines the suction negative pressure according to the current odor concentration, and sends a control instruction according to the suction negative pressure for instructing the suction device to start suction at a predetermined suction negative pressure. As an example, when the gas detection device detects that the concentration of ammonia gas is 0.5ppm or the concentration of hydrogen sulfide is 0.001ppm, the processing unit determines that the negative pressure of the air extraction is-100 pa, and the processor instructs the air extraction device to start air extraction according to the negative pressure of-100 pa. As another example, when the gas detection device detects that the concentration of ammonia gas is 1ppm or the concentration of hydrogen sulfide is 0.002ppm, the processing unit determines that the negative pressure of the air extraction is-200 pa, and the processor instructs the air extraction device to start air extraction at the negative pressure of-200 pa.

In some embodiments, the processing unit prestores a mapping table, and the mapping table includes a mapping relationship between an odor concentration value and an air exhaust negative pressure. The processing unit determines the air exhaust negative pressure according to the current odor concentration, and sends a control instruction according to the air exhaust negative pressure, and the method comprises the following steps: and inquiring the mapping relation table according to the current odor concentration, acquiring the corresponding air exhaust negative pressure, and sending a control instruction according to the acquired air exhaust negative pressure. The mapping relation table can record the mapping relation between the concentration value of the odor and the pumping negative pressure, namely the concentration value of hydrogen sulfide corresponds to one pumping negative pressure, the concentration value of ammonia corresponds to one pumping negative pressure, and the processing unit can acquire the corresponding pumping negative pressure according to the current odor concentration and send a control instruction according to the acquired odor negative pressure so as to control the rotating speed of the pumping device. The processing unit can accurately acquire the negative pressure of air exhaust according to the current odor concentration by prestoring the mapping relation table, and the air exhaust efficiency of the air exhaust device is improved.

As an example, when the odor concentration in the toilet bowl is greater than the threshold value and is continuously increased or rises in proportion, the processor can adjust the air exhaust negative pressure according to the current actual odor concentration, and the PID regulator can remodulate the pulse signal with the pulse width corresponding to the adjusted air exhaust negative pressure according to the adjusted air exhaust negative pressure and send the pulse signal to the air exhaust device as a control instruction so as to improve the rotating speed of the air exhaust device and realize quick and effective deodorization.

As another example, when the odor concentration gradually decreases to approach the threshold value, for example, the ammonia concentration is 0.101ppm or the hydrogen sulfide concentration is 0.00051ppm, the processor may adjust the extraction negative pressure according to the current actual odor concentration, and the PID regulator may remodulate a pulse signal having a pulse width corresponding to the adjusted extraction negative pressure according to the adjusted extraction negative pressure and send the pulse signal as a control instruction to the air extractor to decrease the rotation speed of the air extractor. Because the toilet bowl can automatically adjust the rotating speed of the air extractor according to the odor concentration without long-time full-power work, the energy consumption of the toilet bowl is reduced to a certain extent, and the energy conservation is realized.

The PID regulator can re-modulate the pulse signal with the pulse width corresponding to the adjusted pumping negative pressure according to the adjusted pumping negative pressure and send the pulse signal to the pumping device as a control instruction, so that the control of the rotating speed of the pumping device is realized. Namely, the toilet bowl can carry out frequency conversion automatic adjustment to the air exhaust device according to the odor concentration, thereby effectively removing the odor, realizing energy conservation and reducing the energy consumption of the toilet bowl.

In one embodiment, the method further comprises: and when the odor concentration is smaller than the preset threshold value, sending a stop control instruction, wherein the stop control instruction is used for indicating the air exhaust device to stop exhausting air.

In this embodiment, when the ammonia gas concentration is less than the first preset threshold and the hydrogen sulfide concentration is less than the second preset threshold, the processor sends a stop control instruction to instruct the air exhaust device to stop exhausting air. The air extractor can also stop working when the ammonia concentration is less than the first preset threshold and the hydrogen sulfide concentration is less than the second preset threshold without continuously working, so that the energy consumption of the toilet is reduced to a certain extent, and the energy conservation is realized.

In summary, according to the toilet deodorization method provided by the present invention, the odor concentration in the area where the gas detection device is located is obtained, the processing unit determines whether the odor concentration is greater than or equal to the preset threshold, and when the odor concentration is greater than or equal to the preset threshold, the processing unit sends a control instruction for instructing the air extraction device to extract air according to the preset air pressure, so as to remove the odor generated when the user urinates and defecates in time and keep the air fresh.

Referring to fig. 8, the present embodiment further provides a toilet bowl, which includes a gas detection device, a processing unit and an air exhaust device. The gas detection device is used for obtaining the concentration of odor in the area, and the odor comprises ammonia gas and hydrogen sulfide. The processing unit is used for obtaining the odor concentration, determining whether the odor concentration is larger than or equal to a preset threshold value or not, and sending a control instruction when the odor concentration is larger than or equal to the preset threshold value. The air extracting device is used for receiving the control instruction and extracting air according to the control instruction and preset air pressure.

In some embodiments, the processing unit sends a control instruction for instructing the air exhaust device to start air exhaust at a predetermined air pressure when the odor concentration is greater than or equal to a preset threshold value by: and when the odor concentration is greater than or equal to a preset threshold value, the processing unit determines the air exhaust negative pressure according to the current odor concentration, and sends a control instruction according to the air exhaust negative pressure for instructing the air exhaust device to open air exhaust according to the preset air exhaust negative pressure. Because the air exhaust device can determine the negative pressure of air exhaust according to the current odor concentration, namely the rotating speed of the air exhaust device is variable, the air exhaust device has the energy-saving effect on the basis of ensuring the air exhaust effect, and the air exhaust device is more intelligent.

In some embodiments, the processing unit prestores a mapping relation table, wherein the mapping relation table comprises mapping relations between odor concentration values and air exhaust negative pressures; the processing unit determines the air exhaust negative pressure according to the current odor concentration and sends a control instruction according to the air exhaust negative pressure according to the following steps: and inquiring the mapping relation table according to the current odor concentration, acquiring the corresponding air exhaust negative pressure, and sending a control instruction according to the acquired air exhaust negative pressure.

In some embodiments, the preset thresholds include a first preset threshold and a second preset threshold, and the odor concentration includes an ammonia concentration and a hydrogen sulfide concentration; the processing unit executes the following steps when the odor concentration is greater than or equal to a preset threshold value, and the processing unit sends a control instruction: and when the ammonia gas concentration is greater than or equal to a first preset threshold value, or when the hydrogen sulfide concentration is greater than or equal to a second preset threshold value, the processing unit sends the control instruction.

The embodiment of the toilet bowl in this embodiment corresponds to the embodiment of the toilet bowl deodorization method, and specific principles in the embodiment of the device can be referred to the content in the embodiment of the method, which is not described herein again.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A toilet bowl deodorization method is applied to a toilet bowl, and is characterized in that the toilet bowl comprises a gas detection device, a processing unit and an air extraction device, and the method comprises the following steps:

the gas detection device acquires the concentration of odor in the area, wherein the odor comprises ammonia gas and hydrogen sulfide;

the processing unit acquires the odor concentration, and the processing unit determines whether the odor concentration is greater than or equal to a preset threshold value;

when the odor concentration is greater than or equal to a preset threshold value, the processing unit sends a control instruction for indicating the air extracting device to extract air according to preset air pressure.

2. The toilet bowl deodorization method according to claim 1, wherein when the odor concentration is greater than or equal to a preset threshold, the processing unit sends a control instruction for instructing the air extractor to start air extraction at a predetermined air pressure, and the method comprises:

and when the odor concentration is greater than or equal to a preset threshold value, the processing unit determines the air exhaust negative pressure according to the current odor concentration, and sends a control instruction according to the air exhaust negative pressure for instructing the air exhaust device to open air exhaust according to the preset air exhaust negative pressure.

3. The toilet bowl deodorization method according to claim 2, wherein the processing unit is prestored with a mapping relation table, and the mapping relation table comprises a mapping relation between an odor concentration value and an air extraction negative pressure;

the processing unit determines the air exhaust negative pressure according to the current odor concentration, and sends a control instruction according to the air exhaust negative pressure, and the method comprises the following steps:

and inquiring the mapping relation table according to the current odor concentration, acquiring the corresponding air exhaust negative pressure, and sending a control instruction according to the acquired air exhaust negative pressure.

4. Toilet bowl deodorizing method according to claim 2, characterized in that said processing unit comprises a PID regulator,

the processing unit determines the air exhaust negative pressure according to the current odor concentration, and sends a control instruction according to the air exhaust negative pressure, and the method comprises the following steps:

the processing unit determines the air extraction negative pressure according to the current odor concentration, and the PID regulator modulates a pulse signal with a pulse width corresponding to the air extraction negative pressure according to the air extraction negative pressure and sends the pulse signal as the control instruction.

5. The toilet bowl deodorizing method according to claim 1, further comprising: and when the odor concentration is smaller than the preset threshold value, sending a stop control instruction, wherein the stop control instruction is used for indicating the air exhaust device to stop exhausting air.

6. The toilet bowl deodorization method according to claim 1, wherein the preset threshold values include a first preset threshold value and a second preset threshold value, and the odor concentration includes an ammonia gas concentration and a hydrogen sulfide concentration;

when the odor concentration is greater than or equal to a preset threshold value, the processing unit sends a control instruction, and the control instruction comprises the following steps:

and when the ammonia gas concentration is greater than or equal to a first preset threshold value, or when the hydrogen sulfide concentration is greater than or equal to a second preset threshold value, the processing unit sends the control instruction.

7. A toilet bowl, comprising:

the device comprises a gas detection device, a gas detection device and a gas control device, wherein the gas detection device is used for acquiring the concentration of odor in an area where the gas detection device is located, and the odor comprises ammonia gas and hydrogen sulfide;

the processing unit is used for acquiring the odor concentration, determining whether the odor concentration is greater than or equal to a preset threshold value or not, and sending a control instruction when the odor concentration is greater than or equal to the preset threshold value; and

and the air extracting device is used for receiving the control instruction and extracting air according to the control instruction and preset air pressure.

8. The toilet bowl according to claim 7, wherein the processing unit sends a control instruction for instructing the air exhaust device to start air exhaust at a predetermined air pressure when the odor concentration is greater than or equal to a preset threshold value by:

and when the odor concentration is greater than or equal to a preset threshold value, the processing unit determines the air exhaust negative pressure according to the current odor concentration, and sends a control instruction according to the air exhaust negative pressure for instructing the air exhaust device to open air exhaust according to the preset air exhaust negative pressure.

9. The toilet bowl according to claim 8, characterized in that the processing unit is pre-stored with a mapping relation table, and the mapping relation table comprises mapping relations between odor concentration values and suction negative pressures;

the processing unit determines the air exhaust negative pressure according to the current odor concentration and sends a control instruction according to the air exhaust negative pressure according to the following steps:

and inquiring the mapping relation table according to the current odor concentration, acquiring the corresponding air exhaust negative pressure, and sending a control instruction according to the acquired air exhaust negative pressure.

10. The toilet bowl according to claim 7, wherein the preset threshold values include a first preset threshold value and a second preset threshold value, and the odor concentration includes an ammonia concentration and a hydrogen sulfide concentration;

the processing unit executes the following steps when the odor concentration is greater than or equal to a preset threshold value, and the processing unit sends a control instruction:

and when the ammonia gas concentration is greater than or equal to a first preset threshold value, or when the hydrogen sulfide concentration is greater than or equal to a second preset threshold value, the processing unit sends the control instruction.

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