KR960005005B1 - Control apparatus of a vacuum cleaner - Google Patents

Abstract

The vacuum cleaner is for improving the whole sucking efficiency by setting the optimum sucking condition based on the amount and kinds of dust by sensing by the image sensor. The apparatus is composed of: an image sensor which senses dust; an analog/digital convertor which converts sensing data of the image sensor to digital data; a central processing unit which decides the existences and kinds of dust, amounts of dust by receiving the output of the analog/digital convertor; a control part which operates to generates the optimum sucking power by the control of the central processing unit.

Description

Vacuum cleaner control

1 is a block diagram of a vacuum cleaner control device of Zohl

2 is a block diagram of a vacuum cleaner control apparatus of the present invention.

3 is a state diagram in which the image sensor applied to the present invention is mounted on the suction brush of the vacuum cleaner.

4 is a graph of fuzzy functions and rolls

5 is a flowchart showing the operation procedure of the vacuum cleaner control apparatus of the present invention.

* Explanation of symbols for main parts of the drawings

1: Image sensor 2,20: Analog-to-digital converter

3,30: central processing unit 4: control unit

100: object recognition device P: dust

The present invention relates to a control device that controls the suction force according to the amount of dust and the type of dust sucked into the vacuum cleaner, and in particular, sets the optimal suction conditions based on the detection data of the image sensor attached to the suction brush of the vacuum cleaner. The present invention relates to a vacuum cleaner control device capable of proper dust inhalation.

In the conventional vacuum cleaner control apparatus, as shown in FIG. 1, a sensor or key input signal of the input unit 10 is converted into digital data by an A / D (Analog / Digital) converter 20 and a central processing unit. If input to 30, the data on the appropriate suction force is input to the output control unit 40 by the control of the central processing unit 30.

Then, the control signal of the central processing unit 30 is input to the suction force generating unit 50 from the output control unit 40 to generate a suction force signal, thereby collecting dust (P: contaminated air) by the dust collecting unit 60. Be sure to

However, in the conventional vacuum cleaner control device as described above, the overall suction efficiency is lowered by suctioning dust by the dust suction control signal generated by the central processing unit depending on the means for detecting only the amount of dust flowing into the suction flow path. There was a problem.

Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to set an optimal suction condition based on the amount of dust and the type of dust detected and determined by the image sensor to improve the overall suction efficiency. To provide a vacuum cleaner control device.

In order to achieve the above object, a vacuum cleaner control apparatus according to the present invention includes an image sensor for detecting dust, an analog / digital converter for converting sensing data of the image sensor into digital data, and an output of the analog / digital converter. Receiving the presence or absence of dust, the type of dust, the amount of dust and the like, and a control unit which is operated to generate an optimum suction force by the control of the central processing unit.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

2 is a block diagram of the vacuum cleaner control apparatus of the present invention, FIG. 3 is a state diagram in which an image sensor applied to the present invention is mounted on a suction brush of a vacuum cleaner, and FIG. 4 is a graph of a roll of a purge function. 5 is a flowchart showing the operation procedure of the vacuum cleaner control device of the present invention.

2 and 3, (1) is attached to a suitable portion on the outside of the suction brush (70) to remove the dust (P) contained in the air flows sucked into the suction brush (70). (2) is an analog / digital converter for converting analog data on the intensity of light input and detected by the image sensor 1 into digital data, and (3) the analog / digital converter ( 2) a central processing unit that receives the converted digital data and determines the amount of dust and the type of dust, and controls to generate a proper suction force according to the contamination state of the area where cleaning is performed, wherein the image sensor 1 and Together with the analog-to-digital converter 2 serves as the object recognition device 100.

Further, (4) is a control unit for controlling the motor so that the cleaning task can be performed well by using the appropriate suction force determined according to the place by the control of the central processing unit (3).

On the other hand, the light emitting unit 5 is located on the opposite outer surface of the suction brush (70) to which the image sensor 1 is attached to emit light toward the image sensor 1 to improve the detection sensitivity. .

The vacuum cleaner control apparatus according to the present invention configured as described above detects the internal state of the suction brush (70) where the dust (P) is sucked by the image sensor (1) of the suction surface on which cleaning is performed. In order to determine whether the local condition is a floor, a sofa, or a carpet, the sensing data of the image sensor 1 is spatially sampled and input to the central processing unit 3 through the analog-to-digital converter 2, and the cleaning is performed. The proper suction force is generated according to the current state of the suction surface to be performed.

For example, if the state of the suction surface where the current cleaning is performed is a sofa, it generates a suction force suitable for the sofa and cleans it. Operate the vacuum cleaner to be suitable for cleaning.

It is possible by fuzzy inference to maintain the optimum cleaning state by generating a suitable suction force as described above.

That is, the dust flowing into the suction brush 70 for a predetermined time is detected by the image sensor 1, converted into digital data by the analog-to-digital converter 2, and then suctioned by the central processing unit 3. It is to determine the trend of the pollution degree of the flow path.

According to the judgment of the central processing unit 3, there is a large amount of dust, so that if the degree of contamination is severe, the suction force is strong, and if the amount of dust is relatively small, the degree of contamination is weak, general empirical theory such as weakening force, or contamination If you want to make the removal better, systematize knowledge such as stronger suction power.

In addition, the degree of contamination of the suction surface on which cleaning is performed is classified, and the degree of contamination is severe, medium, or low, and when the change of pollution degree is judged for a certain time, it is long in terms of time for the predetermined time. Expressed as short, etc., the membership function as shown in FIG.

In this way, the type of dust is judged based on the change in the amount of dust, the quality of the suction surface of the contamination level of the suction surface to be cleaned is inferred, and the pollution degree and suction power are lightly expressed by the membership function as described above. do.

In other words, the membership function determined as shown in FIGS. 4 (a) and 4 (b) is used as the optimal function as shown in FIG. 4 (c) in the minimum-maximum manner.

That is, the optimal suction force is set as shown in FIG. 4 (d) by quantitative data consisting of the components of the suction force obtained by the optimum function shown in FIG. 4 (c).

Next, FIG. 5 is explained.

In FIG. 5, S means a step.

In the vacuum cleaner control apparatus according to the present invention, when the power is turned on at the dust step S1, the vacuum cleaner operates at the step S2, and the dust flowing into the internal suction flow path of the suction brush 70 by the image sensor 1 at the step S3 (P). ) For a certain time.

Data on dust detected by the image sensor 1 for a predetermined time is input to the analog-to-digital converter 2 in step S4 and converted into digital data, and the converted digital data is converted into a central processing unit 3 in step S5. ) Is entered.

Then, in step S6, the state of the suction surface on which the cleaning task is performed is determined based on the digital data input to the central processing unit 3, and the fuzzy inference described above is performed in step S7.

According to the result of the fuzzy inference, a suitable suction force is generated depending on whether the state of the suction surface on which the cleaning pregnant woman is performed in step S8 is a carpet, a sofa, or a place other than that, thereby performing the cleaning pregnant woman of step S9 under optimum conditions.

Thus, according to the vacuum cleaner control apparatus of the present invention, by generating a suitable suction force according to the state of the suction surface to be cleaned according to the amount of dust and the type of dust can not only prevent unnecessary waste of power, but also overall cleaning efficiency There is an excellent effect that can improve.

Claims (3)

An image sensor for detecting dust, an analog / digital converter for converting the sensed data of the image sensor into digital data, and a central processing for receiving the output of the analog / digital converter to determine the presence or absence of dust, the type of dust, the amount of dust, etc. And a control unit operable to generate an optimum suction force by the control of the central processing unit. The apparatus of claim 1, wherein the image sensor is attached to a portion of an outer surface of the suction brush. The vacuum cleaner control apparatus according to claim 1, wherein the image sensor has a detection sensitivity improved by a light emitting part attached to the opposite side of the suction brush.