CN106149835B - Ventilator and method for removing odor of ventilator - Google Patents
Ventilator and method for removing odor of ventilator Download PDFInfo
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Abstract
The invention discloses a ventilator and a method for removing peculiar smell of the ventilator, wherein the ventilator is provided with fan blades, a motor for driving the fan blades to rotate and a control unit, and a smell sensing device is arranged on the ventilator; the odor sensing device detects odor and transmits an odor signal to the control unit, the control unit judges odor grade, and the motor is controlled by the control unit to rotate at a rotating speed corresponding to the current odor grade for a preset time, wherein the lower the odor grade is, the lower the rotating speed of the motor is, the higher the odor grade is, and the higher the rotating speed of the motor is. The invention has the advantages that the automatic operation is realized through the detection of the sensor, the convenience of a user is improved, and the operation of the motor can be automatically stopped when the peculiar smell is removed or the peculiar smell grade is judged to be the lowest, thereby saving energy.
Description
Technical Field
The invention relates to a ventilator and a method for removing peculiar smell of the ventilator.
Background
A prior art ventilator comprising: the fan blade of locating frame inside, drive flabellum pivoted motor, carry out the heater that heats to the air and be fixed in the face guard on the opening frame.
Most bathroom designs in modern Chinese apartments are provided with a bathroom, a toilet and a washroom, some smoking users may smoke in the washroom, after the users use the washroom, smoke smell remains in the bathroom, and the peculiar smell in the washroom is generally discharged to the outside by using the ventilation function of a ventilator.
The ventilator of the prior art generally has a standby mode and a 24-hour ventilation mode, when the ventilator is in the standby mode, ventilation needs to be manually selected by a user, and the operation speed and time of the ventilator are manually adjusted, which is inconvenient for the user; moreover, when the ventilator is in a 24-hour ventilation mode and the odor in the bathroom is large, it is difficult to rapidly discharge the odor to the outside.
Therefore, an induction type ventilator capable of automatically controlling the operation of the ventilator according to the concentration of the indoor odor is desired.
Disclosure of Invention
The invention aims to provide a ventilator which can automatically control the operation of the ventilator according to the concentration of indoor peculiar smell.
In order to achieve the above object, the present invention provides a ventilator, which comprises fan blades, a motor for driving the fan blades to rotate, and a control unit, wherein the ventilator is provided with an odor sensing device; the odor sensing device detects odor and transmits an odor signal to the control unit, the control unit judges odor grade, and the motor is controlled by the control unit to rotate at a rotating speed corresponding to the current odor grade for a preset time, wherein the lower the odor grade is, the lower the rotating speed of the motor is, the higher the odor grade is, and the higher the rotating speed of the motor is; a plurality of peculiar smell concentration threshold value groups A are preset in the control unit, a detected peculiar smell signal acquired for the first time is compared with the plurality of peculiar smell concentration threshold value groups A, and the control unit judges the grade of the peculiar smell according to a comparison result; a plurality of peculiar smell concentration threshold value groups B lower than the numerical value of the peculiar smell grade corresponding to the peculiar smell concentration threshold value group A are preset in the control unit, the peculiar smell signals acquired and detected for the second time are compared with the plurality of peculiar smell concentration threshold value groups B, and the control unit judges the peculiar smell grade according to the comparison result; and comparing the odor concentration threshold B group with the odor signal induced by odor, and reducing the rotating speed of the motor if the odor grade is reduced.
The present invention also provides a method for removing odor of a ventilator, which can automatically control the operation of the ventilator according to the concentration of indoor odor.
In order to achieve the above object, the present invention provides a method for removing odor in a ventilator, the ventilator having fan blades, a motor for driving the fan blades to rotate, and a control unit, the ventilator being provided with an odor sensing device, the method for removing odor being performed according to the following steps:
step a, detecting by an odor sensing device;
b, transmitting the peculiar smell signal to a control unit, and judging the grade of the peculiar smell by the control unit;
c, the motor is controlled by the control unit to rotate at a rotating speed corresponding to the current odor grade for a preset time, wherein the lower the odor grade is, the lower the rotating speed of the motor is, the higher the odor grade is and the higher the rotating speed of the motor is; the control unit is internally preset with a plurality of peculiar smell concentration threshold value groups A, the peculiar smell signals collected and detected for the first time are compared with the plurality of peculiar smell concentration threshold value groups A, and the control unit judges the grade of the peculiar smell according to the comparison result; a plurality of peculiar smell concentration threshold value groups B lower than the numerical value of the peculiar smell grade corresponding to the peculiar smell concentration threshold value group A are preset in the control unit, the peculiar smell signals acquired and detected for the second time are compared with the plurality of peculiar smell concentration threshold value groups B, and the control unit judges the peculiar smell grade according to the comparison result; comparing the odor concentration threshold B group with odor signals induced by odor, and reducing the rotating speed of the motor if the odor grade is reduced; repeating the steps a to c.
And d, the ventilator is operated in a delayed mode until the peculiar smell is removed or is lower than a preset target value.
In order to achieve the above object, the present invention further provides a method for removing odor in a ventilator, the ventilator having fan blades, a motor for driving the fan blades to rotate, and a control unit, the ventilator being provided with an odor sensing device, the ventilator motor operating speed being set from low to high to three levels, FW1, FW2 and FW3, the method for removing odor being performed according to the following steps:
w0: when the ventilator is in a standby mode, a group A and a group B of peculiar smell concentration threshold values are preset in the control unit, wherein the group A comprises the threshold value A, the threshold value B and the threshold value C, and the group B comprises the threshold value A2Threshold value B2Threshold value C2Wherein the threshold value is A2< threshold A, threshold A < threshold B2< threshold B, threshold B < threshold C2< threshold value C of the electric power transmission line,
w1: when the odor sensing device detects the odor concentration E0, the odor signals are transmitted to the control unit and are respectively compared with a preset odor concentration threshold A, B, C,
when E0 is less than the threshold A, the odor grade is judged as [0], the step is returned to W0,
when the threshold value A is less than or equal to E0 and less than the threshold value B, the odor grade is judged as [1],
when the threshold B is less than or equal to E0 and less than the threshold C, the odor grade is judged as [2],
when the threshold value C is less than or equal to E0, the odor grade is judged as [3],
w2-1: when the odor grade is judged to be [1], the control unit controls the ventilator to operate at FW1 gear, and the step is carried out to W3-1;
w2-2: when the odor grade is judged to be [2], the control unit controls the ventilator to operate at FW2 gear, and the step enters W3-2;
w2-3: when the odor grade is judged to be [3], the control unit controls the ventilator to operate at FW3 gear, and the step is carried out in W3-3;
w3-1: when the ventilator operates in FW1 gear, the odor sensing device detects again, and detects the detected odor concentration E1 and a preset odor concentration threshold A2B, C, when the threshold value C is less than or equal to E1, the odor grade is judged as [3]]Returning to the step W2-3, when the threshold B is less than or equal to the threshold E1 and less than the threshold C, the odor grade is judged as [2]]Returning to step W2-2 when the threshold value A is reached2When the odor grade is less than or equal to E1 and less than a threshold B, the odor grade is judged as [ 1%]Returning to step W2-1 when the threshold value A is reached2When the odor level is more than E1, the odor grade is judged to be [0]Proceeding to step W4;
w3-2: when the ventilator operates in FW2 gear, the odor sensing device detects again, and detects the detected odor concentration E1 and a preset odor concentration threshold A2、B2C, when the threshold value C is less than or equal to E1, the odor grade is judged to be [3]]Returning to step W2-3 when the threshold value B is2When the odor grade is less than or equal to E1 and less than a threshold value C, judging the odor grade as [2]]Returning to step W2-2 when the threshold value A is reached2E1 < threshold B2When it is judged that the odor grade is [1]]Returning to step W2-1 when the threshold value A is reached2When the odor level is more than E1, the odor grade is judged to be [0]Proceeding to step W4;
w3-3: when the ventilator operates in FW3 gear, the odor sensing device detects again, and detects the detected odor concentration E1 and a preset odor concentration threshold A2、B2、C2Making a comparison when the threshold value C is reached2When the odor grade is less than or equal to E1, the odor grade is judged as [ 3%]Returning to step W2-3 when the threshold value B is2E1 < threshold C2When it is judged that the odor grade is [2]]Returning to step W2-2 when the threshold value A is reached2E1 < threshold B2When it is judged that the odor grade is [1]]Returning to step W2-1 when the threshold value A is reached2When the odor level is more than E1, the odor grade is judged to be [0]Enter intoA step W4;
w4: the control unit controls the ventilator to perform T0-minute delay operation in FW1 gear, the odor sensing device performs detection simultaneously, the detected odor concentration E2 is compared with a preset odor concentration threshold value A, B, C, when the threshold value A is not less than E2 and is less than a threshold value B, the odor grade is judged to be [1], and the step returns to W2-1;
when the threshold B is less than or equal to E2 and less than the threshold C, judging the odor grade as [2], and returning to the step W2-2;
when the threshold value C is less than or equal to E2, judging the odor grade as [3], and returning to the step W2-3;
when the threshold value A is larger than E2, the odor grade is judged to be [0], FW1 is continued to wait for T0 minutes to end, and the step returns to W0.
The invention has the advantages that the automatic operation is realized through the detection of the sensor, the convenience of a user is improved, and the operation of the motor can be automatically stopped when the peculiar smell is removed or the peculiar smell grade is judged to be the lowest, thereby saving energy.
Drawings
Fig. 1 is a schematic view of a ventilator according to an embodiment of the present invention;
fig. 2 is a flow chart of a first embodiment of the method for removing odor for a ventilator of the present invention;
fig. 3 is a flow chart of a second embodiment of the method for removing odor for a ventilator of the present invention;
fig. 4 is a flowchart of a third embodiment of the method for removing odor for a ventilator according to the present invention.
Detailed Description
Fig. 1 is a schematic view of a ventilator according to an embodiment of the present invention.
As shown in fig. 1, the ventilator 10 has fan blades 11, a motor 12 for driving the fan blades 11 to rotate, and a control unit 13, and the ventilator 10 is provided with an odor sensing device 14;
the odor sensing device 14 is used for detecting odor and transmitting an odor signal to the control unit 13, the control unit 13 judges odor level, the motor 12 is controlled by the control unit 13 to rotate at a rotating speed corresponding to the current odor level for a preset time, wherein the lower the odor level is, the lower the rotating speed of the motor is, the higher the odor level is, and the higher the rotating speed of the motor is.
After the preset time is over, the odor is detected again, a new odor signal is transmitted to the control unit 13, the control unit 13 judges the odor grade again, and the motor 12 operates again for the preset time at the rotating speed corresponding to the new odor grade under the control of the control unit 13. This is repeated until the odor is removed or the odor level reaches a minimum level, and the motor 12 is stopped. If the odor is detected again, the motor 12 is operated again.
Fig. 2 is a flowchart of a first embodiment of the method for removing odor for a ventilator according to the present invention.
As shown in fig. 2, a method for removing odor in a ventilator having fan blades, a motor for driving the fan blades to rotate, and a control unit, the ventilator having an odor sensing device, the method for removing odor comprises the following steps:
step a, detecting by an odor sensing device;
b, transmitting the peculiar smell signal to a control unit, and judging the grade of the peculiar smell by the control unit;
and c, the motor is controlled by the control unit to rotate at the rotating speed corresponding to the current odor grade for a preset time, wherein the lower the odor grade is, the lower the rotating speed of the motor is, the higher the odor grade is and the higher the rotating speed of the motor is.
If desired, steps a to c may be repeated after step c.
And d, the ventilator is operated in a delayed mode until the peculiar smell is removed or is lower than a preset target value.
A plurality of odor concentration threshold values can be preset in the control unit for judging the odor grade by the control unit, and the acquired and detected odor signal is compared with the odor concentration threshold values to obtain the odor grade.
In some settings, because the range of the odor concentration threshold is narrow, when the control unit performs the odor level determination, frequent changes of the odor level determination may occur in a short time, which may cause frequent switching of the operating speed (gear) of the ventilator, thereby reducing the service life of the ventilator, and users may mistakenly think that the ventilator has a fault if the operating speed (gear) of the ventilator is frequently switched in a short time. In order to avoid the possible situations, the embodiment of the invention not only can set one group of odor concentration threshold values, but also can increase the range of the odor concentration threshold values by additionally setting a second group of odor concentration threshold values, and the software can reduce the delayed operation control. The method comprises the following specific steps:
a plurality of peculiar smell concentration threshold value groups A are preset in the control unit, a detected peculiar smell signal acquired for the first time is compared with the plurality of peculiar smell concentration threshold value groups A, and the control unit judges the grade of the peculiar smell according to a comparison result;
a plurality of peculiar smell concentration threshold value groups B lower than the numerical value of the peculiar smell grade corresponding to the peculiar smell concentration threshold value group A are preset in the control unit, the peculiar smell signals acquired and detected for the second time are compared with the plurality of peculiar smell concentration threshold value groups B, and the control unit judges the peculiar smell grade according to the comparison result; and comparing the odor concentration threshold B group with the odor signal induced by odor, and reducing the rotating speed of the motor if the odor grade is reduced.
Fig. 3 is a flowchart of a second embodiment of the method for removing odor for a ventilator according to the present invention.
As shown in fig. 3, a method for removing odor in a ventilator, the ventilator having fan blades, a motor for driving the fan blades to rotate, and a control unit, the ventilator being provided with an odor sensing device, the ventilator motor operating speed being three steps from low to high, FS1, FS2, and FS3, the method for removing odor being performed according to the following steps:
s0: when the ventilator is in a standby mode, a peculiar smell concentration threshold value A, a threshold value B and a threshold value C are preset in the control unit, wherein the threshold value A is more than the threshold value B and less than the threshold value C,
s1: when the odor sensing device detects the odor concentration E0, the odor signals are transmitted to the control unit and are respectively compared with a preset odor concentration threshold A, B, C,
when E0 is less than the threshold A, the odor grade is judged as [0], the step is returned to S0,
when the threshold value A is less than or equal to E0 and less than the threshold value B, the odor grade is judged as [1],
when the threshold B is less than or equal to E0 and less than the threshold C, the odor grade is judged as [2],
when the threshold value C is less than or equal to E0, the odor grade is judged as [3],
s2-1: when the odor grade is judged to be [1], the control unit controls the ventilator to operate at FS1 gear for T1 minutes, and the step is entered into S3-1.
S2-2: when the odor grade is judged to be [2], the control unit controls the ventilator to operate at FS2 gear for T2 minutes, and the step is entered into S3-2.
S2-3: when the odor level is determined as [3], the control unit controls the ventilator to operate at FS3 for T3 minutes, and the process proceeds to step S4.
S3-1: and in the T1-minute operation process, detecting by the odor sensing device under the FS1 operation state, comparing the detected odor concentration E1 with a preset odor concentration threshold B, judging the odor grade as [2] when the threshold B is less than or equal to E1, returning to the step S2, and entering the step S4 when the threshold B is more than E1.
S3-2: and in the T2-minute operation process, detecting by the odor sensing device under the FS2 operation state, comparing the detected odor concentration E1 with a preset odor concentration threshold value C, judging the odor grade as [3] when the threshold value C is less than or equal to E1, returning to the step S2, and entering the step S4 when the threshold value C is more than E1.
S4: and after T1, T2 and T3 minutes are finished, the control unit controls the ventilator to perform T0-minute delay operation at an FS1 gear, the odor sensing device performs detection simultaneously, the detected odor concentration E2 is compared with a preset odor concentration threshold A, B, C, when the threshold A is less than or equal to E2 and less than the threshold B, the odor grade is judged to be [1], and the step is returned to the S2.
And when the threshold B is less than or equal to E2 and less than the threshold C, judging the odor grade as [2], and returning to the step S2.
When the threshold value C is less than or equal to E2, the odor grade is judged as [3], and the process returns to the step S2.
And when the threshold A is larger than E2, judging the odor grade as [0], continuing to wait for T0 minutes at FS1, and returning to the step S0.
Fig. 4 is a flowchart of a third embodiment of the method for removing odor for a ventilator according to the present invention.
As shown in fig. 4, a method for removing odor in a ventilator, the ventilator having fan blades, a motor for driving the fan blades to rotate, and a control unit, the ventilator being provided with an odor sensing device, the ventilator motor operating speed being set from low to high with three gears FW1, FW2 and FW3, the method for removing odor being performed according to the following steps:
w0: when the ventilator is in a standby mode, a group A and a group B of peculiar smell concentration threshold values are preset in the control unit, wherein the group A comprises the threshold value A, the threshold value B and the threshold value C, and the group B comprises the threshold value A2Threshold value B2Threshold value C2Wherein the threshold value is A2< threshold A, threshold A < threshold B2< threshold B, threshold B < threshold C2< threshold value C of the electric power transmission line,
w1: when the odor sensing device detects the odor concentration E0, the odor signals are transmitted to the control unit and are respectively compared with a preset odor concentration threshold A, B, C,
when E0 is less than the threshold A, the odor grade is judged as [0], the step is returned to W0,
when the threshold value A is less than or equal to E0 and less than the threshold value B, the odor grade is judged as [1],
when the threshold B is less than or equal to E0 and less than the threshold C, the odor grade is judged as [2],
when the threshold value C is less than or equal to E0, the odor grade is judged as [3],
w2-1: when the odor grade is judged to be [1], the control unit controls the ventilator to operate at FW1 gear, and the step is carried out to W3-1;
w2-2: when the odor grade is judged to be [2], the control unit controls the ventilator to operate at FW2 gear, and the step enters W3-2;
w2-3: when the odor grade is judged to be [3], the control unit controls the ventilator to operate at FW3 gear, and the step is carried out in W3-3;
w3-1: when the ventilator operates in FW1 gear, the odor sensing device detects again, and detects the detected odor concentration E1 and a preset odor concentration threshold A2B, C, when the threshold value C is less than or equal to E1, the odor grade is judged as [3]]Returning to step W2-3, when the threshold value is reachedWhen B is less than or equal to E1 and less than a threshold C, the odor grade is judged as [2]]Returning to step W2-2 when the threshold value A is reached2When the odor grade is less than or equal to E1 and less than a threshold B, the odor grade is judged as [ 1%]Returning to step W2-1 when the threshold value A is reached2When the odor level is more than E1, the odor grade is judged to be [0]Proceeding to step W4;
w3-2: when the ventilator operates in FW2 gear, the odor sensing device detects again, and detects the detected odor concentration E1 and a preset odor concentration threshold A2、B2C, when the threshold value C is less than or equal to E1, the odor grade is judged to be [3]]Returning to step W2-3 when the threshold value B is2When the odor grade is less than or equal to E1 and less than a threshold value C, judging the odor grade as [2]]Returning to step W2-2 when the threshold value A is reached2E1 < threshold B2When it is judged that the odor grade is [1]]Returning to step W2-1 when the threshold value A is reached2When the odor level is more than E1, the odor grade is judged to be [0]Proceeding to step W4;
w3-3: when the ventilator operates in FW3 gear, the odor sensing device detects again, and detects the detected odor concentration E1 and a preset odor concentration threshold A2、B2、C2Making a comparison when the threshold value C is reached2When the odor grade is less than or equal to E1, the odor grade is judged as [ 3%]Returning to step W2-3 when the threshold value B is2E1 < threshold C2When it is judged that the odor grade is [2]]Returning to step W2-2 when the threshold value A is reached2E1 < threshold B2When it is judged that the odor grade is [1]]Returning to step W2-1 when the threshold value A is reached2When the odor level is more than E1, the odor grade is judged to be [0]Proceeding to step W4;
w4: the control unit controls the ventilator to perform T0-minute delay operation in FW1 gear, the odor sensing device performs detection simultaneously, the detected odor concentration E2 is compared with a preset odor concentration threshold value A, B, C, when the threshold value A is not less than E2 and is less than a threshold value B, the odor grade is judged to be [1], and the step returns to W2-1;
when the threshold B is less than or equal to E2 and less than the threshold C, judging the odor grade as [2], and returning to the step W2-2;
when the threshold value C is less than or equal to E2, judging the odor grade as [3], and returning to the step W2-3;
when the threshold value A is larger than E2, the odor grade is judged to be [0], FW1 is continued to wait for T0 minutes to end, and the step returns to W0.
Claims (5)
1. A ventilator, having fan blades, a motor for driving the fan blades to rotate, and a control unit, comprising: the ventilator is provided with an odor sensing device;
the odor sensing device detects odor and transmits an odor signal to the control unit, the control unit judges odor grade, and the motor is controlled by the control unit to rotate at a rotating speed corresponding to the current odor grade for a preset time, wherein the lower the odor grade is, the lower the rotating speed of the motor is, the higher the odor grade is, and the higher the rotating speed of the motor is;
a plurality of peculiar smell concentration threshold value groups A are preset in the control unit, a detected peculiar smell signal acquired for the first time is compared with the plurality of peculiar smell concentration threshold value groups A, and the control unit judges the grade of the peculiar smell according to a comparison result;
a plurality of peculiar smell concentration threshold value groups B lower than the numerical value of the peculiar smell grade corresponding to the peculiar smell concentration threshold value group A are preset in the control unit, the peculiar smell signals acquired and detected for the second time are compared with the plurality of peculiar smell concentration threshold value groups B, and the control unit judges the peculiar smell grade according to the comparison result; and comparing the odor concentration threshold B group with the odor signal induced by odor, and reducing the rotating speed of the motor if the odor grade is reduced.
2. A method for removing odor in a ventilator having fan blades, a motor for driving the fan blades to rotate, and a control unit, the method comprising: the ventilator is provided with an odor sensing device, and the method for removing the peculiar smell comprises the following steps:
step a, detecting by an odor sensing device;
b, transmitting the peculiar smell signal to a control unit, and judging the grade of the peculiar smell by the control unit;
c, the motor is controlled by the control unit to rotate at a rotating speed corresponding to the current odor grade for a preset time, wherein the lower the odor grade is, the lower the rotating speed of the motor is, the higher the odor grade is and the higher the rotating speed of the motor is; wherein,
a plurality of peculiar smell concentration threshold value groups A are preset in the control unit, a detected peculiar smell signal acquired for the first time is compared with the plurality of peculiar smell concentration threshold value groups A, and the control unit judges the grade of the peculiar smell according to a comparison result;
a plurality of peculiar smell concentration threshold value groups B lower than the numerical value of the peculiar smell grade corresponding to the peculiar smell concentration threshold value group A are preset in the control unit, the peculiar smell signals acquired and detected for the second time are compared with the plurality of peculiar smell concentration threshold value groups B, and the control unit judges the peculiar smell grade according to the comparison result; comparing the odor concentration threshold B group with odor signals induced by odor, and reducing the rotating speed of the motor if the odor grade is reduced;
repeating the steps a to c.
3. The method for removing odor of a ventilator according to claim 2, wherein: and d, the ventilator is operated in a delayed mode until the peculiar smell is removed or is lower than a preset target value.
4. The method for removing odor of a ventilator according to claim 2, wherein:
a plurality of peculiar smell concentration threshold values are preset in the control unit, the collected and detected peculiar smell signals are compared with the plurality of peculiar smell concentration threshold values, and the control unit judges the grade of the peculiar smell.
5. A method for removing odor in a ventilator having fan blades, a motor for driving the fan blades to rotate, and a control unit, the method comprising: the ventilator is provided with an odor sensing device, the running speed of a motor of the ventilator is provided with three gears of FW1 gear, FW2 gear and FW3 gear from low to high, and the method for removing the odor is carried out according to the following steps:
w0: when the ventilator is in a standby mode, a group A and a group B of peculiar smell concentration threshold values are preset in the control unit, wherein the group A comprises the threshold value A, the threshold value B and the threshold value C, and the group B comprises the threshold value A2Threshold value B2Threshold value C2Wherein the threshold value is A2< threshold A, threshold A < threshold B2< threshold B, threshold B < threshold C2< threshold value C of the electric power transmission line,
w1: when the odor sensing device detects the odor concentration E0, the odor signals are transmitted to the control unit and are respectively compared with a preset odor concentration threshold A, B, C,
when E0 is less than the threshold A, the odor grade is judged as [0], the step is returned to W0,
when the threshold value A is less than or equal to E0 and less than the threshold value B, the odor grade is judged as [1],
when the threshold B is less than or equal to E0 and less than the threshold C, the odor grade is judged as [2],
when the threshold value C is less than or equal to E0, the odor grade is judged as [3],
w2-1: when the odor grade is judged to be [1], the control unit controls the ventilator to operate at FW1 gear, and the step is carried out to W3-1;
w2-2: when the odor grade is judged to be [2], the control unit controls the ventilator to operate at FW2 gear, and the step enters W3-2;
w2-3: when the odor grade is judged to be [3], the control unit controls the ventilator to operate at FW3 gear, and the step is carried out in W3-3;
w3-1: when the ventilator operates in FW1 gear, the odor sensing device detects again, and detects the detected odor concentration E1 and a preset odor concentration threshold A2B, C, when the threshold value C is less than or equal to E1, the odor grade is judged as [3]]Returning to the step W2-3, when the threshold B is less than or equal to the threshold E1 and less than the threshold C, the odor grade is judged as [2]]Returning to step W2-2 when the threshold value A is reached2When the odor grade is less than or equal to E1 and less than a threshold B, the odor grade is judged as [ 1%]Returning to step W2-1 when the threshold value A is reached2When the odor level is more than E1, the odor grade is judged to be [0]Proceeding to step W4;
w3-2: when the ventilator operates in FW2 gear, the odor sensing device detects again, and detects the detected odor concentration E1 and a preset odor concentration threshold A2、B2C, when the threshold value C is less than or equal to E1, the odor grade is judged to be [3]]Returning to step W2-3 when the threshold value B is2When the odor grade is less than or equal to E1 and less than a threshold value C, judging the odor grade as [2]]Returning to step W2-2 when the threshold value A is reached2E1 < threshold B2When it is judged that the odor grade is [1]]Returning to step W2-1 when the threshold value A is reached2When the odor level is more than E1, the odor grade is judged to be[0]Proceeding to step W4;
w3-3: when the ventilator operates in FW3 gear, the odor sensing device detects again, and detects the detected odor concentration E1 and a preset odor concentration threshold A2、B2、C2Making a comparison when the threshold value C is reached2When the odor grade is less than or equal to E1, the odor grade is judged as [ 3%]Returning to step W2-3 when the threshold value B is2E1 < threshold C2When it is judged that the odor grade is [2]]Returning to step W2-2 when the threshold value A is reached2E1 < threshold B2When it is judged that the odor grade is [1]]Returning to step W2-1 when the threshold value A is reached2When the odor level is more than E1, the odor grade is judged to be [0]Proceeding to step W4;
w4: the control unit controls the ventilator to perform T0-minute delay operation in FW1 gear, the odor sensing device performs detection simultaneously, the detected odor concentration E2 is compared with a preset odor concentration threshold value A, B, C, when the threshold value A is not less than E2 and is less than a threshold value B, the odor grade is judged to be [1], and the step returns to W2-1;
when the threshold B is less than or equal to E2 and less than the threshold C, judging the odor grade as [2], and returning to the step W2-2;
when the threshold value C is less than or equal to E2, judging the odor grade as [3], and returning to the step W2-3;
when the threshold value A is larger than E2, the odor grade is judged to be [0], FW1 is continued to wait for T0 minutes to end, and the step returns to W0.
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| CN108414676A (en) * | 2017-02-09 | 2018-08-17 | 佛山市顺德区美的电热电器制造有限公司 | Smell monitoring method, equipment, system and household electrical appliance for household electrical appliance |
| CN111503975A (en) * | 2020-04-20 | 2020-08-07 | 合肥华凌股份有限公司 | Refrigerator odor purification control method, refrigerator odor purification device and refrigerator |
| CN112064306B (en) * | 2020-09-02 | 2023-04-07 | 广州视源电子科技股份有限公司 | Clothes care method, clothes care machine and computer readable storage medium |
| CN113531791B (en) * | 2021-06-25 | 2025-01-21 | 箭牌家居集团股份有限公司 | A fresh air delivery method and device based on intelligent toilet odor monitoring |
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