JPH06113986A - Cleaner - Google Patents

Abstract

PURPOSE:To provide a cleaner which judges a cleaner objective article and controls the suction work quantity according to the suction pressure of the air supplied from a nozzle and the dust quantity output. CONSTITUTION:A cleaner is equipped with a pressure sensor 1 installed inside the body of a cleaner which is connected with a nozzle and sucks dust, dust sensor 2 installed in a dust passage between the nozzle and the body of the cleaner, memory part 3 which memorizes the suction work quantity having the pressure and the dust quantity as parameters, calculation processing part 4 for calculating the optimum suction work quantity at the memory part from the outputs of two sensors, and a motor control part 5 for controlling the suction force from the input information supplied from the calculation processing part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner which determines the object to be cleaned and controls the suction work amount according to the suction pressure of air from a nozzle and the dust amount output of a dust sensor.

[0002]

2. Description of the Related Art Conventionally, as a vacuum cleaner of this type, a pressure sensor detects a change in pressure in the main body of the cleaner due to a difference in the degree of contact between a nozzle and a floor due to a difference in an object to be cleaned. Some of them detect the material of the cleaning target. There is also known a vacuum cleaner that determines the suction work amount by detecting the amount of dust with a dust sensor.

[0003]

However, the conventional techniques described above have the following problems. In the above method, the pressure sensor inside the main body of the vacuum cleaner determines the object to be cleaned, so if newspapers or magazines are stuck to the nozzle by mistake, the pressure sensor inside the main body will output an output close to the maximum pressure. It is generated, and as a result, it is controlled to further increase the suction work amount, and the drive motor is unnecessarily heated.

On the other hand, in a lace curtain or the like in which dust is accumulated, even if the nozzle is brought closer to suck the dust on the surface, the pressure does not rise because the lace fabric has good air permeability.
Since the suction work does not increase, there is a problem that the desired cleaning result cannot be obtained.

On the other hand, in a vacuum cleaner in which the dust sensor determines the suction work amount, if the dust on the surface is sucked up by a carpet or the like having long hair, the output of the dust sensor becomes small, resulting in a low suction work amount. As a result, the dust on the bottom of the carpet will not be sucked in sufficiently and will remain.

Therefore, the present invention is intended to solve such a conventional problem, and it is possible to determine the amount of the object to be cleaned and the amount of dust from the information of the pressure sensor in the main body of the cleaner and the dust sensor provided in the dust passage. Accordingly, it is an object of the present invention to provide a vacuum cleaner capable of optimally controlling the suction force of a fan motor.

[0007]

In order to achieve the above object, a cleaner of the present invention comprises a nozzle, a main body of the cleaner connected to the nozzle for sucking dust, and a pressure sensor provided in the main body. , A dust sensor provided in the dust passage between the nozzle and the main body of the cleaner, a storage unit that stores the suction work amount using pressure and the amount of dust as parameters, and the optimum output of the storage unit from the two sensor outputs The calculation processing unit calculates a suction work amount, and the motor control unit controls the suction force according to input information from the calculation processing unit.

Further, the suction work amount stored in the storage unit is
It is arranged two-dimensionally by two parameters of pressure and amount of dust.

Further, the suction work amount stored in the storage unit is created by using a neural network.

[0010]

According to the above construction, in the pressure sensor in the main body of the vacuum cleaner, the amount of intake air changes depending on the material of the floor, and the output changes accordingly. On the other hand, the dust sensor provided in the dust passage provides an output according to the amount of dust from the object to be cleaned. The arithmetic processing unit calculates the optimum suction work amount stored in advance in the storage unit from the information of both sensors. The motor control unit controls the fan motor according to the calculation contents calculated by the calculation processing unit.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a pressure sensor, which produces an output according to the amount of intake air. Reference numeral 2 denotes a dust sensor provided in the dust passage, which generates an output according to the amount of floating dust existing in the sucked air. A storage unit 3 stores mapping information using pressure and dust amount as parameters, that is, suction work amount. Reference numeral 4 denotes an arithmetic processing unit that calculates the optimum suction work amount of the storage unit 3 from the outputs of the two sensors. A motor control unit 5 drives a fan motor (not shown) according to input information from the arithmetic processing unit 4.

As shown in FIG. 2, the pressure sensor 1
Is provided in the main body 6 of the cleaner together with the storage unit 3, the arithmetic processing unit 4, and the motor control unit 5. Also,
The dust sensor 2 is provided in the handle portion of the pipe in the dust passage formed by the flexible hose 7, the extension pipe and the like between the nozzle 8 and the main body 6 of the cleaner.

Further, as shown in FIG.
With respect to the output of the pressure sensor 1 and the output of the dust sensor 2, the optimum work of suction is two-dimensionally stored according to the respective sensor outputs.

Further, the suction work amount to be stored in the storage unit 3 needs to be determined in accordance with a number of objects to be cleaned and various states of dust, and is created by using a neural network.

Next, the operation of the above vacuum cleaner will be described.
The pressure sensor 1 determines whether the nozzle 8 is away from the floor or reaches the floor, and at the same time, the output changes according to the ventilation amount of the cleaning object, and when the ventilation amount is large, the pressure becomes low and the output becomes small. When the ventilation amount is small, such as a carpet with long fluffs or a thick curtain, the pressure becomes high, so the output becomes large, and the output corresponding to the ventilation amount of the cleaning object is sent to the arithmetic processing unit 4.

At this time, the dust sensor 2 measures the amount of dust existing in the air sucked from the nozzle 8 and produces an output according to the amount of dust. Therefore, depending on the amount of dust in the air, a large output is generated when the amount of dust in the air that has been sucked in is large, and a small output is generated when the amount of dust is small, and is sent to the arithmetic processing unit 4.

The calculation processing section 4 refers to the suction work amount stored in the storage section 3 from the output of the pressure sensor 1 and the output of the dust sensor 2, and outputs the motor drive output. The motor controller 5 drives the fan motor according to the motor drive output.

Here, for example, when the output of the pressure sensor 1 is maximum and the output of the dust sensor 2 is minimum, the suction work amount "small" is set. When the output of the pressure sensor 1 is the maximum and the output of the dust sensor 2 is the maximum, the suction work amount “large” is set. That is, the suction work amount is not determined by the simple product of the outputs of the two sensors, and the optimum suction work amount is selected from the stored information depending on the state of the object to be cleaned. This is because, for example, a carpet with a lot of dust and a lace curtain with a lot of cotton dust have different suction work settings.

Explaining a concrete example, when a newspaper or a magazine is sucked in, the output of the dust sensor 2 is small and the output of the pressure sensor 1 is large. And magazines are controlled so that they can be easily removed. In the case of a lace curtain that is a little dirty with cotton dust, the suction work amount is initially set to "medium" and the suction work amount is reduced to "small" when dust is removed. As a result, the problem of sucking the curtain and clogging the nozzle 8 is eliminated. Further, when the dust on the surface is sucked up by a carpet with long naps and the like, the output of the dust sensor 2 becomes small, but the output of the pressure sensor 1 is maintained at a medium level. Controlled to maintain.

[0020]

As is apparent from the above description, the vacuum cleaner of the present invention stores in advance the suction work amount corresponding to the condition of the object to be cleaned in the storage unit from the plural sensor information of the pressure sensor and the dust sensor. , The suction work is determined according to the output of each sensor.If a newspaper or magazine is sucked in, the output of the dust sensor is small and the output of the pressure sensor is large. Keep it small and control it so that newspapers and magazines are easy to remove. In the case of a lace curtain that is a little dirty with cotton dust, the suction work is initially set to a medium level, and when dust is removed, the suction work is controlled to be small. As a result, the problem of sucking the curtain and clogging the nozzle is eliminated. In addition, if the dust on the surface is sucked up completely with a carpet with long hair, the output of the dust sensor will be small, but the output of the pressure sensor will be maintained at a medium level, so maintain a medium suction work amount. The suction force can be optimally controlled and the conventional problems can be solved.

Further, the suction work amount stored in the storage unit is
Since they are arranged two-dimensionally by the two parameters of pressure and amount of dust, it is possible to control the dust collection efficiency to be always high very quickly without performing complicated calculation processing.

Further, the suction work to be stored in the storage unit needs to be determined according to a number of objects to be cleaned and various states of dust, but by using a neural network, the optimum suction work can be more efficiently performed. You can create a map of.

[Brief description of drawings]

FIG. 1 is a block diagram of a vacuum cleaner showing an embodiment of the present invention.

FIG. 2 is an external perspective view of the vacuum cleaner.

FIG. 3 is a diagram showing a map of suction work amount stored in a storage unit of the vacuum cleaner.

[Explanation of symbols]

 1 Pressure Sensor 2 Dust Sensor 3 Storage Section 4 Calculation Processing Section 5 Motor Control Section 6 Main Body 8 Nozzle

Claims (3)

[Claims] 1. A nozzle, a main body of a cleaner connected to the nozzle for sucking dust, a pressure sensor provided in the main body, and a dust sensor provided in a dust passage between the nozzle and the main body of the cleaner. A storage unit that stores the suction work amount using the pressure and the amount of dust as parameters, an arithmetic processing unit that calculates the optimum suction work amount of the storage unit from the two sensor outputs, and input information from the arithmetic processing unit. A vacuum cleaner having a motor control unit that controls the suction force according to the. 2. The vacuum cleaner according to claim 1, wherein the suction work amount stored in the storage unit is two-dimensionally arranged by two parameters of pressure and dust amount. 3. The vacuum cleaner according to claim 1, wherein the suction work amount stored in the storage unit is created by using a neural network.