TWI607795B - Ventilation equipment filter detection method and ventilation equipment - Google Patents

Description

Ventilation device filter detection method and ventilation device

The present invention relates to a screen detecting method, and more particularly to a screen detecting method applied to a ventilation device, and the present invention also relates to the foregoing ventilation device.

Ventilation equipment (such as a total heat exchanger) is usually provided with a detachable filter screen for filtering dust and impurities in the air passing through the ventilation device, and the filter screen must be periodically replaced or cleaned to avoid excessive dust clogging. Holes in the filter screen, which affect the performance of the ventilation device.

In order to avoid the user's neglect of maintenance, a conventional ventilation device will be timed every time the power is turned on, and when the accumulated time length is greater than a predetermined length of time, the conventional ventilation device will send a notification signal, borrowing This actively reminds the user to replace or clean the filter.

However, in different environments, or at different times in the same environment, the concentration of dust contained in the air may be different, resulting in a difference in the rate of accumulation of dust on the screen. Therefore, in an environment with a high dust concentration, before the conventional ventilation device sends a notification signal, excessive dust may have accumulated on the filter screen, and the performance of the ventilation device is degraded. And in the environment with low dust concentration, in the conventional ventilation equipment When the signal is notified, the amount of dust accumulated on the filter may not reach the level that needs to be replaced and cleaned.

That is to say, the conventional ventilation device determines whether or not the cleaning filter has to be replaced by timing, and cannot accurately reflect the current dust accumulation of the filter, so that there is still much room for improvement.

Accordingly, it is an object of the present invention to provide a screen detecting method capable of more accurately issuing a notification notification indicating replacement/cleaning of a screen.

Another object of the present invention is to provide a ventilation device.

Therefore, the method for detecting the ventilating device screen of the present invention is performed by a ventilating device comprising a screen, a processing unit, a sensing unit for sensing the concentration of dust in the air, and a storage unit. And a prompting unit, wherein the storage unit pre-stores a plurality of different dust concentration ranges, a plurality of dust adhesion values corresponding to the dust concentration ranges, a dust cumulative total parameter, and a dust total upper limit value.

The method consists of the following steps:

(A) the processing unit selects one of the dust concentration ranges according to the sensing result of the sensing unit every predetermined period, and updates the dust cumulative total parameter by using the dust adhesion value corresponding to the one of the dust concentration ranges, The method for updating the dust accumulation total parameter by the processing unit is to make the value of the accumulated dust accumulation total parameter equal to The value of the dust accumulation total parameter of the new one is added to the dust adhesion value corresponding to one of the dust concentration ranges.

(B) the processing unit determines whether the value of the updated dust accumulation total parameter is greater than the dust total amount upper limit value, and if so, the processing unit outputs, via the prompting unit, a prompt indicating that the dust attached to the filter mesh is excessive Notice.

In some implementations, in step (A), the manner in which the processing unit selects one of the dust concentration ranges according to the sensing result of the sensing unit is to calculate a plurality of sensing results of the sensing unit in the predetermined period. The average is obtained by averaging a concentration, and the range of dust concentration in which the average value of the concentration falls is selected.

In some implementations, the method further includes a step (C) prior to step (A): the processing unit determines whether the ventilation device is in an operational state, and when the processing unit determines that the ventilation device is in the In the operating state, step (A) is executed, and step (B) is executed. When the processing unit determines that the ventilating device is not in the operating state, step (B) is directly executed.

In some implementations, in step (B), when the processing unit determines that the updated cumulative amount of dust accumulation is not greater than the upper limit of the total amount of dust, step (C) is performed.

In some implementations, the ventilation device is adapted to communicate with a portable electronic device, and the ventilation device further includes a communication unit; the method further comprising: (D) receiving, by the processing unit, the communication unit To one from the portable electronic device In response to the query request, the processing unit generates a reply message indicating the current dust attachment status of the filter according to the dust accumulation total parameter, and transmits the response message to the portable electronic device via the communication unit.

In some implementations, the ventilation device is adapted to communicate with a remote server, and the ventilation device further includes a communication unit; the method further comprising: (E) the processing unit determining the total dust accumulation parameter Whether the value is greater than a predetermined value lower than the upper limit of the total amount of dust, and if so, the processing unit transmits a notice of the notice indicating that the cumulative dust total amount parameter is greater than the predicted value to the remote servo via the communication unit. Device.

The ventilation device of the present invention comprises a filter screen, a sensing unit for sensing the concentration of dust in the air, a storage unit, a prompting unit, and an electrical connection unit, the storage unit, and the prompting unit. Processing unit.

The storage unit pre-stores a plurality of different dust concentration ranges, a plurality of dust adhesion values corresponding to the dust concentration ranges, a dust accumulation total parameter, and a dust total upper limit value.

The processing unit selects one of the dust concentration ranges according to the sensing result of the sensing unit every predetermined period, and updates the dust cumulative total parameter by using the dust adhesion value corresponding to the one of the dust concentration ranges, The manner in which the processing unit updates the dust accumulation total parameter is such that the value of the updated dust accumulation total parameter is equal to the value of the dust accumulation total parameter before the update plus corresponding to the A dust adhesion value in the range of dust concentration.

The processing unit determines whether the value of the updated dust total amount parameter is greater than the dust total amount upper limit value, and if so, the processing unit outputs, via the prompting unit, a prompt notification indicating that the dust attached to the filter screen is excessive.

In some implementations, the manner in which the processing unit selects one of the dust concentration ranges according to the sensing result of the sensing unit is to calculate an average of the plurality of sensing results of the sensing unit in the predetermined period to obtain a concentration average. Value, and select the range of dust concentration within which the concentration average falls.

In some implementations, before the processing unit updates the dust accumulation total parameter, it is further determined whether the ventilation device is in an operating state, and when the processing unit determines that the ventilation device is in the running state, the processing The unit first updates the dust cumulative total parameter, and then determines whether the updated dust total amount parameter value is greater than the dust total amount upper limit value, and when the processing unit determines that the ventilation device is not in the running state, the The processing unit directly determines whether the value of the dust accumulation total parameter is greater than the upper limit of the total dust amount.

In some implementations, when the processing unit determines that the updated total dust accumulation value is not greater than the dust total amount upper limit value, the processing unit determines again whether the ventilation device is in an operating state.

In some implementations, the ventilation device further includes a communication unit, the ventilation device is adapted to communicate with a portable electronic device, when the processing unit is The processing unit receives a query request from the portable electronic device, and the processing unit generates a reply message indicating the current dust attachment status of the filter according to the dust accumulation total parameter in response to the query request, and The communication unit is transmitted to the portable electronic device.

In some implementations, the ventilation device further includes a communication unit, the ventilation device is adapted to communicate with a remote server, and the processing unit further determines whether the value of the dust accumulation total parameter is greater than a lower value than The pre-announcement value of the upper limit of the total amount of dust, if yes, the processing unit transmits a notice of the notice indicating that the total amount of dust accumulation parameter is greater than the notice value to the remote server via the communication unit.

The effect of the invention is that the processing unit first performs the update of the dust accumulation total parameter with the corresponding dust adhesion value, and then determines whether to issue the prompt notification with the updated dust accumulation total parameter, thereby being able to more accurately evaluate the attachment. Whether the dust of the filter is too much, and promptly remind the user to replace or clean the filter.

1‧‧‧Ventilator equipment

11‧‧‧ Filter

12‧‧‧Sensor unit

13‧‧‧Cue unit

14‧‧‧storage unit

15‧‧‧Communication unit

16‧‧‧Processing unit

8‧‧‧Portable electronic devices

9‧‧‧Remote Server

S1~S8‧‧‧Steps

Other features and advantages of the present invention will be apparent from the embodiments of the present invention. FIG. 1 is a block diagram of a system architecture of an embodiment of the ventilation device of the present invention; A flow diagram of performing a filter detection method; FIG. 3 is another flow diagram of the filter detection method; FIG. 4 is a schematic diagram of still another flow of the screen detecting method.

Referring to FIG. 1 , an embodiment of a ventilation device 1 of the present invention includes a filter screen 11 , a sensing unit 12 , a prompting unit 13 , a storage unit 14 , a communication unit 15 , and an electrical connection unit 12 . The prompting unit 13, the storage unit 14, and the processing unit 16 of the communication unit 15. In this embodiment, the ventilation device 1 is, for example, a total heat exchanger, and in other embodiments, the ventilation device 1 can also be, for example, an air conditioner or a dehumidifier, instead of the embodiment. Limited.

The sensing unit 12 is for sensing a dust concentration in the air. It is to be noted that the sensing unit 12 includes a sensing probe (not shown), and the sensing unit 12 is, for example, the number of times the sensing probe is impacted by dust within a certain period of time, and is associated with a correlation. The dust concentration is converted to the air amount parameter, but is not limited thereto.

The storage unit 14 pre-stores a plurality of different dust concentration ranges, a plurality of dust adhesion values corresponding to the dust concentration ranges, a dust accumulation total parameter, and a dust total upper limit value. In this embodiment, the storage unit 14 is pre-stored with, for example, "0 to 10 micrograms per cubic meter", "10 to 20 micrograms per cubic meter", and "20 to 30 micrograms per cubic meter", .. , 15 "150 ~ 150 μg / m ^ 3" and other fifteen different dust concentration ranges, and 15 pairs of dust adhesion values corresponding to the dust concentration range, but not limited to this. These dust concentration ranges are representative The amount of dust contained in the amount of air per unit, therefore, the larger the dust adhesion value corresponding to the larger dust concentration range, and the dust adhesion value is an experiment by simulating the environment of different dust concentration ranges. Defined.

In this embodiment, the ventilation device 1 is adapted to communicate with a portable electronic device 8 and a remote server 9. The portable electronic device 8 can be, for example, a smart phone held by a user of the ventilation device 1 , and the remote server 9 can be, for example, a manufacturer who sells the ventilation device 1 . A cloud database, but not limited to this.

Referring to FIG. 2, the flow of one of the filter detecting methods performed by the ventilation device 1 is as follows.

In step S1, the processing unit 16 determines whether the ventilation device 1 is in an operational state. When the processing unit 16 determines that the ventilation device 1 is in the running state, step S2 is performed, and when the processing unit 16 determines that the ventilation device 1 is not in the operating state, but is in a shutdown state, for example, or In the standby state, step S3 is performed.

In step S2, the processing unit 16 selects one of the dust concentration ranges according to the sensing result of the sensing unit 12 in a predetermined period, and updates the dust accumulation using the dust adhesion value corresponding to the one of the dust concentration ranges. Total parameters. More specifically, when the process proceeds to step S2, the processing unit 16 continuously collects the sensing result of the sensing unit 12 until the predetermined period is reached, and the processing unit 16 selects one of the dust concentration ranges by first calculating the predetermined period. Multiple sensing of the sensing unit 12 The average of the results is obtained to obtain a concentration average value, and then the dust concentration range in which the concentration average value falls is selected. In this embodiment, the predetermined period is, for example, five minutes, and the sensing unit 12 generates a sensing result, for example, every six seconds, that is, the average value of the concentration is in a corresponding predetermined period. The arithmetic mean of the fifty sensing results generated by the measuring unit 12 in sequence, but not limited thereto. For example, if the average value of the concentration is fifteen micrograms per cubic meter, the processing unit 16 selects a dust concentration range of "10-20 micrograms per cubic meter"; if the average concentration is 28 micrograms/ For the cubic meter, the processing unit 16 selects a dust concentration range of "20 to 30 micrograms per cubic meter".

It is noted that the processing unit 16 updates the dust accumulation total parameter in such a manner that the value of the updated dust accumulation total parameter is equal to the value of the dust accumulation total parameter before the update plus the corresponding The dust adhesion value of one of the dust concentration ranges. For example, suppose that in a certain update, the value of the dust accumulation total parameter before the update is, for example, 4.4, and the dust adhesion value corresponding to the dust concentration range of the update is, for example, 4.8, the updated dust is The value of the cumulative total parameter is "4.4+4.8=9.2", and in the next update, the processing unit 16 continues to accumulate with 9.2 as the value before the dust accumulation total parameter update. Next, step S3 is performed.

In step S3, the processing unit 16 determines whether the value of the updated dust accumulation total parameter is greater than the dust total upper limit value. If yes, step S4 is performed; otherwise, step S1 is performed again.

In step S4, the processing unit 16 outputs a notification notification indicating that the dust is excessively attached to the screen 11 via the prompting unit 13, thereby alerting the user of the ventilation device 1 to clean or replace the filter 11. The prompting unit 13 may include, for example, a light-emitting element (not shown), and the prompt notification is outputted by the processing unit 16 in a blinking manner, for example, but is not limited thereto.

Based on the above steps S1 to S4, assuming that the ventilation device 1 is continuously in the running state for a period of time (for example, half a day), the sensing unit 12 periodically performs sampling of the air quality and generates a sensing result, and By the processing unit 16 updating the dust accumulation total parameter using the corresponding dust adhesion value according to the sensing results, the processing unit 16 can ensure that each update of the dust accumulation total parameter is based on actual conditions. The ambient air condition is carried out. Even if the ambient air state changes drastically, for example, the dust concentration rises sharply, the filter detection method performed by the ventilation device 1 can accurately update the dust accumulation total parameter, so that compared with the existing The technique relies only on the timing of judging the degree of contamination of the screen 11, and the present invention has higher accuracy.

Referring to FIG. 3, the ventilation device 1 can also perform a query process for the user to query the current degree of contamination of the filter screen 11 in the filter detection method.

In step S5, when the portable electronic device 8 issues a query request to the ventilation device 1 according to the user operation, the processing unit 16 receives the query request via the communication unit 15.

In step S6, the processing unit 16 generates a reply message indicating the current dust attachment status of the filter 11 according to the dust accumulation total parameter in response to the query request, and transmits the response message to the portable device 15 via the communication unit 15 Electronic device 8. The reply message may include, for example, a current percentage of the dust accumulation total parameter and the dust total amount upper limit value, so that the user can easily grasp the current dirtiness of the filter screen 11, but not This is limited to this. For example, if the current dust accumulation total parameter is 18000 and the dust total limit value is 30000, the reply message contains 60%.

Referring to FIG. 4, the ventilation device 1 can also execute the screening detection method, and a preview process for actively reminding the filter 11 that the dirtiness is about to reach the upper limit.

In step S7, the processing unit 16 determines whether the value of the dust accumulation total parameter is greater than a predetermined value lower than the upper limit of the total dust amount, and the forecast value may be, for example, a percentage of the upper limit of the total dust amount. Ninety, but not limited to this. When the result of the determination in step S7 is YES, step S8 is performed, and when it is determined in step S7 that the result is no, step S7 is re-executed.

In step S8, when the processing unit 16 determines that the value of the dust accumulation total parameter is greater than the preview value, the processing unit 16 generates a notice notification indicating that the dust accumulation total parameter is greater than the preview value, and the The advance notice is transmitted to the remote server 9 via the communication unit 15 to assist the seller of the ventilation device 1 to grasp the location The use of the ventilating device 1 sold is convenient for providing follow-up services. For example, the operator can estimate the number of filter replacement requirements that may occur in the area in the near future by counting the number of notices from the same region, and then decide to replace the device. Preparation or scheduling of required materials, but not limited to this.

In summary, the filter detecting method performed by the ventilation device 1 of the present invention first performs the update of the dust accumulation total parameter with the corresponding dust adhesion value by the processing unit 16, and then accumulates the total accumulated dust. The quantity parameter determines whether or not the notification of the prompt is issued, and it is possible to more accurately evaluate whether the dust attached to the filter screen 11 is excessive, and promptly reminds the user to replace or clean the filter screen 11, so that the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

1‧‧‧Ventilator equipment

11‧‧‧ Filter

12‧‧‧Sensor unit

13‧‧‧Cue unit

14‧‧‧storage unit

15‧‧‧Communication unit

16‧‧‧Processing unit

8‧‧‧Portable electronic devices

9‧‧‧Remote Server

Claims (12)

A ventilating device screen detecting method is performed by a ventilating device, the ventilating device comprising a filter screen, a processing unit, a sensing unit for sensing dust concentration in the air and including a sensing probe a storage unit, and a prompting unit, the storage unit pre-storing a plurality of different dust concentration ranges, a plurality of dust adhesion values corresponding to the dust concentration ranges, a dust accumulation total parameter, and a total dust The upper limit value, the method comprises the following steps: (A) the processing unit selects one of the dust concentration ranges according to the sensing result of the sensing unit every predetermined period, and uses a range corresponding to the dust concentration range The dust adhesion value updates the dust cumulative total parameter, wherein the sensing result of the sensing unit is related to the number of times the sensing probe is subjected to dust impact within a period of time, and the processing unit updates the cumulative amount of the dust The parameter is obtained by making the value of the updated dust total amount parameter equal to the value of the dust cumulative total parameter before the update plus the dust concentration corresponding to the dust concentration. And (B) the processing unit determines whether the value of the updated dust total amount parameter is greater than the dust total amount upper limit value, and if so, the processing unit outputs an indication via the prompting unit to attach to the A notice of excessive dust on the filter screen. The ventilation device screen detecting method according to claim 1, wherein in the step (A), the processing unit selects one of the dust concentration ranges according to the sensing result of the sensing unit to calculate the predetermined period. The average of the plurality of sensing results of the sensing unit obtains a concentration average value, and selects the concentration The average value falls within the dust concentration range. The ventilation device screen detecting method according to claim 1, further comprising a step (C) before the step (A): the processing unit determines whether the ventilation device is in an operating state, and the processing unit determines When the ventilation device is in the running state, step (A) is performed, and step (B) is performed. When the processing unit determines that the ventilation device is not in the operating state, step (B) is directly executed. The method for detecting a ventilating device screen according to claim 3, wherein, in the step (B), when the processing unit determines that the updated cumulative amount of the dust is not greater than the upper limit of the total amount of dust, Perform step (C). The ventilating device screen detecting method according to claim 1, wherein the ventilating device is adapted to communicate with a portable electronic device, and the ventilating device further comprises a communication unit; the method further comprises: (D) When the processing unit receives a query request from the portable electronic device via the communication unit, the processing unit generates, according to the query request, a dust indicating a current dust attachment state of the filter according to the dust accumulation total parameter. The message is replied to and transmitted to the portable electronic device via the communication unit. The ventilating device screen detecting method according to claim 1, wherein the ventilating device is adapted to communicate with a remote server, and the ventilating device further comprises a communication unit; the method further comprises: (E) The processing unit determines whether the value of the total dust accumulation parameter is greater than a predetermined value lower than the upper limit of the total amount of dust, and if so, the processing unit indicates a pre-commission indicating that the total dust accumulation parameter is greater than the predicted value It is known to transmit to the remote server via the communication unit. A ventilation device comprises: a filter screen; a sensing unit for sensing dust concentration in the air and comprising a sensing probe; and a storage unit for pre-storing a plurality of different dust concentration ranges and multiple pens respectively Corresponding to the dust adhesion value range, a dust accumulation total parameter, and a dust total amount upper limit value; a prompting unit; and a processing unit electrically connecting the sensing unit, the storage unit, and the a prompting unit; wherein the processing unit selects one of the dust concentration ranges according to the sensing result of the sensing unit every predetermined period, and updates the cumulative amount of the dust using the dust adhesion value corresponding to the one of the dust concentration ranges a parameter, the sensing result of the sensing unit is related to the number of times the sensing probe is hit by the dust within a period of time, and the processing unit updates the dust cumulative total parameter by adding the updated dust The value of the total parameter is equal to the value of the total dust accumulation parameter before the update plus the dust adhesion value corresponding to one of the dust concentration ranges; After the dust unit determines that whether the updated parameter value is greater than the total cumulative value of the total amount of the dust, if the processing unit via the prompt indicating unit outputs a screen attached to the excessive dust alert. The ventilating device of claim 7, wherein the processing unit selects one of the dust concentration ranges according to the sensing result of the sensing unit The average of the plurality of sensing results of the sensing unit in the predetermined period is calculated to obtain a concentration average value, and the dust concentration range in which the concentration average value falls is selected. The ventilating device of claim 7, wherein before the processing unit updates the dust cumulative total parameter, it is further determined whether the ventilating device is in an operating state, and when the processing unit determines that the ventilating device is in the In the operating state, the processing unit first updates the dust cumulative total parameter, and then determines whether the value of the updated dust total amount parameter is greater than the dust total upper limit value, when the processing unit determines that the ventilation device is not in the In the operating state, the processing unit directly determines whether the value of the dust accumulation total parameter is greater than the dust total amount upper limit value. The ventilation device according to claim 9, wherein, when the processing unit determines that the updated accumulated dust total value is not greater than the dust total amount upper limit value, the processing unit determines again whether the ventilation device is In a working state. The ventilating device of claim 7, further comprising a communication unit, wherein the ventilating device is adapted to communicate with a portable electronic device, and the processing unit receives a portable electronic device from the portable electronic device In response to the query request, the processing unit generates a reply message indicating the current dust attachment status of the filter according to the dust accumulation total parameter, and transmits the response message to the portable electronic device via the communication unit. The ventilation device of claim 7, further comprising a communication unit, wherein the ventilation device is adapted to communicate with a remote server, the processing unit further determining whether the value of the dust accumulation total parameter is greater than a lower value than Upper dust limit The warning value, if yes, the processing unit transmits a notice of the notice indicating that the dust accumulation total parameter has been greater than the notice value to the remote server via the communication unit.