CN112087185A - Dust collector accessory identification system and method - Google Patents

Abstract

The invention discloses a dust collector accessory identification system and a method, which comprises a main control module, a dust collection motor control module connected with the main control module, a ground brush motor control module connected with the main control module, a power supply voltage reduction module for providing a 5V direct current power supply, a voltage detection module connected with the main control module and detecting power supply voltage, and a dust collection motor driving module connected with the main control module, wherein the main control module obtains current signals of the ground brush motor control module through a plurality of pulse signals, and then combines the obtained current signals with the power supply voltage detected by the voltage detection module to be matched with a preset data table in the main control module to obtain specification information of a ground brush motor. The invention has the advantages of reducing cost, being simple and convenient to operate, being capable of automatically identifying corresponding dust collector accessories, being convenient for multi-scene portable use of users, preventing unauthorized dust collector accessories from being used, improving product reliability and avoiding brand image from being damaged.

Description

Dust collector accessory identification system and method

Technical Field

The invention relates to a dust collector accessory identification system and method.

Background

At present, a plurality of dust collector accessories with motors are arranged on a dust collector to meet the application of different environments, but the use of the whole dust collector is influenced because the dust collector accessories are not identified due to different electrical parameters, such as different motor powers. The existing solutions in the industry, which use resistors for identification, require the addition of identification resistors and corresponding circuits in the vacuum cleaner accessories for identification, which undoubtedly increases the cost.

Disclosure of Invention

The invention aims to: the system and the method for identifying the accessory of the dust collector are provided, the cost is reduced, the operation is simple and convenient, the corresponding accessory of the dust collector can be automatically identified, and the system and the method are convenient for a user to use in a multi-scene portable mode.

The first technical scheme of the invention is as follows: the utility model provides a dust catcher annex identification system, its includes host system, the dust absorption motor control module that links to each other with host system, the scrubbing brush motor control module that links to each other with host system, the power step-down module that provides 5V DC power, the voltage detection module that links to each other and detect mains voltage with host system, and the dust absorption motor drive module that links to each other with host system, wherein host system obtains the current signal of scrubbing brush motor control module through a plurality of pulse signal, then combines the mains voltage that voltage detection module detected according to the current signal who obtains, and then matches with the preset data table in the host system and reachs the specification information of scrubbing brush motor again.

On the basis of the technical scheme, the method further comprises the following subsidiary technical scheme:

preferably, the dust collection motor control module comprises a first field effect transistor U2, a first connecting resistor R14 connected with the grid of the first field effect transistor U2, a first parallel resistor R8 with one end connected with the first connecting resistor R14 in parallel and the other end connected with the ground, a first filtering unit connected with the source of the first field effect transistor U2, and a first protection unit connected with the drain of the first field effect transistor U2.

Preferably, the ground brush motor control module comprises a second field effect transistor U4, a second connecting resistor R16 connected with the gate of the second field effect transistor U4, a second parallel resistor R17 with one end connected in parallel with the second connecting resistor R16 and the other end connected with the ground, a second filtering unit connected with the source of the second field effect transistor U4, and a second protection unit connected with the drain of the second field effect transistor U4.

Preferably, the voltage detection module includes a third fet Q2, a drain resistor R5 having one end connected to the drain of the third fet Q2 and the other end connected to the B + signal, a gate resistor R9 having one end connected to the gate of the third fet Q2 and the other end grounded, and a third filter unit connected to the source of the third fet Q2.

Preferably, the first filter unit comprises a first filter resistor R4 connected with the source of the first field effect transistor U2, a second filter resistor R7 with one end connected with the source of the first field effect transistor U2 and the other end connected with the ground, and a first filter capacitor C5 with one end connected with the first filter resistor R4 and the other end connected with the ground.

Preferably, the second filter unit comprises a third filter resistor R18 connected with the source of the second fet U4, a fourth filter resistor R19 connected with the source of the second fet U4 at one end and with the ground at the other end, and a second filter capacitor C10 connected with the third filter resistor R18 at one end and with the ground at the other end.

Preferably, the dust collection motor driving module is used for driving a motor and comprises a fourth field effect transistor Q1, a voltage division resistor R2 with one end connected with the drain of the fourth field effect transistor Q1, a driving diode D2 with the cathode connected with the other end of the voltage division resistor R2 and the anode connected with a VCC signal, a third connecting resistor R12 with one end connected with the grid of the fourth field effect transistor Q1, and a fourth connecting resistor R3 with one end connected with the other end of the third connecting resistor and the other end connected with the ground.

The second technical scheme of the invention is as follows: a method for identifying accessories of a dust collector comprises the following steps:

s1: when the system starts to be electrified, the main control module (100) sends a plurality of pulse signals to the ground brush motor control module (300);

s2: then the ground brush motor control module (300) feeds back an instant current signal to the main control module 100 according to the pulse signal;

s3: then the main control module 100 compares the power supply voltage detected by the voltage detection module (500) with a preset data table in the main control module (100) according to the instantaneous current signal, if the power supply voltage is matched with the preset data table, the step S4 is carried out, and if the power supply voltage is not matched with the preset data table, power supply to the ground brush motor is stopped;

s4: and finally, obtaining the specification information of the floor brush motor, supplying power to the floor brush motor according to the specification information, calling a control program matched with the floor brush motor in the main control module 100, and controlling the working state of the floor brush motor to the end.

On the basis of the second technical scheme, the method further comprises the following subsidiary technical scheme:

the preset data table at least comprises power information, current power supply voltage, instantaneous current and locked rotor current, and the specification information of the ground brush motor at least comprises the locked rotor current.

The invention has the advantages that: the cost is reduced, the operation is simple and convenient, the corresponding dust collector accessories can be automatically identified, the multi-scene portable use of a user is facilitated, the use of unauthorized dust collector accessories is prevented, the product reliability is improved, and the damage of brand images is avoided.

Drawings

The invention is further described with reference to the following figures and examples:

FIG. 1 is a functional block diagram of a first embodiment of the present invention;

FIG. 2 is a circuit diagram of the master control module of FIG. 1;

FIG. 3 is a circuit diagram of the suction motor control module of FIG. 1;

FIG. 4 is a circuit diagram of the brush motor control module of FIG. 1;

FIG. 5 is a circuit diagram of the power down module of FIG. 1;

FIG. 6 is a circuit diagram of the voltage detection module of FIG. 1;

FIG. 7 is a circuit diagram of the suction motor driving module of FIG. 1;

FIG. 8 is a circuit diagram of the key display module and interface module of FIG. 1;

fig. 9 is a diagram of the present power supply voltage versus the instantaneous current in a second embodiment of the present invention.

Detailed Description

Example (b): as shown in fig. 1 to 8, the present invention discloses a first embodiment of a vacuum cleaner accessory identification system, which includes a main control module 100, a vacuum motor control module 200 connected to the main control module 100, a ground brush motor control module 300 connected to the main control module 100, a power step-down module 400 providing 5 v dc power, a voltage detection module 500 connected to the main control module 100 and detecting power voltage, and a vacuum motor driving module 600 connected to the main control module 100, wherein the main control module 100 obtains a current signal of the ground brush motor control module 300 through a plurality of pulse signals, and then combines the obtained current signal with the power voltage detected by the voltage detection module 500, so as to match with a preset data table in the main control module 100 and obtain specification information of the ground brush motor.

The main control module 100 is preferably a single chip or a microprocessor, and the present embodiment is preferably a CM8S6990-20 chip, and has 20 pins in total. The 8051 architecture industrial processor has dual op amps and dual comparators.

The dust collection motor control module 200 comprises a first field effect transistor U2, a first connecting resistor R14 connected with the grid of the first field effect transistor U2, a first parallel resistor R8 with one end connected with the first connecting resistor R14 in parallel and the other end connected with the ground, a first filtering unit connected with the source of the first field effect transistor U2, and a first protection unit connected with the drain of the first field effect transistor U2. The first filtering unit comprises a first filtering resistor R4 connected with the source electrode of the first field effect transistor U2, a second filtering resistor R7 with one end connected with the source electrode of the first field effect transistor U2 and the other end connected with the ground, and a first filtering capacitor C5 with one end connected with the first filtering resistor R4 and the other end connected with the ground, wherein AN AN-C1 signal is output from a connection point between the first filtering resistor R4 and the first filtering capacitor C5, and the AN-C1 signal is connected with a No. 14 pin of the main control module 100. The first protection unit comprises a first protection capacitor C9 connected with the drain electrode of the first field effect transistor U2 and a first voltage stabilizing diode D7 connected with the first protection capacitor C9 in parallel, wherein the negative electrode of the first voltage stabilizing diode D7 is connected with a dust collection motor signal M +.

The ground brush motor control module 300 comprises a second field effect transistor U4, a second connecting resistor R16 connected with the grid electrode of the second field effect transistor U4, a second parallel resistor R17 with one end connected with the second connecting resistor R16 in parallel and the other end connected with the ground, a second filtering unit connected with the source electrode of the second field effect transistor U4, and a second protection unit connected with the drain electrode of the second field effect transistor U4. The second filtering unit comprises a third filtering resistor R18 connected with the source electrode of the second field effect transistor U4, a fourth filtering resistor R19 with one end connected with the source electrode of the second field effect transistor U4 and the other end connected with the ground, and a second filtering capacitor C10 with one end connected with the third filtering resistor R18 and the other end connected with the ground, wherein a connection point between the third filtering resistor R18 and the second filtering capacitor C10 outputs AN AN-C2 current signal, and the AN-C2 current signal is connected with the pin No. 12 of the main control module 100.

The voltage detection module 500 is used for detecting the battery voltage, and includes a third fet Q2, a drain resistor R5 having one end connected to the drain of the third fet Q2 and the other end connected to the B + signal, a gate resistor R9 having one end connected to the gate of the third fet Q2 and the other end grounded, and a third filter unit connected to the source of the third fet Q2. The third filter unit includes a fifth filter resistor R10 connected to the source of the third fet Q2, and a third filter capacitor C7 having one end connected in parallel with the fifth filter resistor R10 and the other end connected to ground. The capacitance values of the first filter capacitor C5, the first protection capacitor C9, the second filter capacitor C10 and the third filter capacitor C7 are the same, and the unit is nano-scale, preferably 30-200 nF. The gate resistor R9, the fifth filter resistor R10, the first parallel resistor R8 and the second parallel resistor R17 have the same resistance value, are smaller than the resistance value of the drain resistor R5, and have a unit of kiloohm. The first connection resistor R14 and the second connection resistor R16 have the same resistance value. The resistance values of the first filter resistor R4 and the third filter resistor R18 are the same and are smaller than the resistance value of the fifth filter resistor R10.

The dust collection motor driving module 600 is used for driving a motor and comprises a fourth field effect transistor Q1, a voltage division resistor R2 with one end connected with the drain of the fourth field effect transistor Q1, a driving diode D2 with the cathode connected with the other end of the voltage division resistor R2 and the anode connected with a VCC signal, a third connecting resistor R12 with one end connected with the grid of the fourth field effect transistor Q1, and a fourth connecting resistor R3 with one end connected with the other end of the third connecting resistor and the other end connected with the ground. The connection point of the third connecting resistor R12 and the fourth connecting resistor R3 is connected with the SIO signal. The source of the fourth field effect transistor Q1 is connected with the ground. The drain electrode of the fourth field effect transistor Q1 is connected with a dust collection motor driving signal SI.

The key display module 700 includes three keys and three indicator lights for controlling the switching of the circuit and indication of the operating conditions. The interface module 800 includes a programming interface and a signal transfer.

Also, the present invention discloses a second embodiment of a method for identifying accessories of a vacuum cleaner, which comprises the steps of:

s1: when the system starts to be powered on, the main control module 100 sends a plurality of pulse signals to the ground brush motor control module 300, wherein the period of the pulse signals is millisecond unit;

s2: then the floor brush motor control module 300 feeds back an instantaneous current signal to the main control module 100 according to the pulse signal;

s3: then the main control module 100 compares the power supply voltage detected by the voltage detection module 500 with a preset data table in the main control module 100 according to the instantaneous current signal, if the power supply voltage is matched with the preset data table, the step S4 is executed, and if the power supply voltage is not matched with the preset data table, the power supply to the floor brush motor is stopped;

in step S3, the preset data table at least includes power information, current power voltage, instantaneous current, and locked-rotor current parameters, and the specification information of the ground brush motor at least includes locked-rotor current, and in this embodiment, the preset data table may refer to the following table:

therefore, once the detected current signal is within the preset data table, i.e. within the three quadrangles in fig. 9, but outside the three quadrangles;

s4: and finally, obtaining the specification information of the floor brush motor, supplying power to the floor brush motor according to the specification information, calling a control program matched with the floor brush motor in the main control module 100, and controlling the working state of the floor brush motor to the end. Because the locked-rotor currents of the motors with different powers are different, the corresponding locked-rotor currents need to be identified through the current power supply voltage and the instantaneous current so as to ensure the normal work of the ground brush motor.

The invention can realize the identification of different powers of the floor brush, and adopts corresponding signals to control the floor brush to work, thereby realizing the function of one machine with multiple functions. Different ground brush recognition principles: the main control module 100 firstly gives a pulse voltage signal to the ground brush motor control module 300, the second field effect transistor U4 is conducted, then AN AN-C2 current signal is output, and the main control module 100 judges whether the current signal is AN authorized dust collector accessory of the product according to the AN-C2 current signal and the current power supply voltage: if so, the controller compares the current ground brush with a preset data table of the main control module 100 to identify the ground brushes with different powers, and then outputs a corresponding control signal to control the current ground brush motor, otherwise, the controller stops the work of the ground brush motor. Therefore, the invention can judge whether the accessory of the dust collector is authorized or not only by two power lines without a sampling resistor, a signal line and a related circuit, and then controls the work of the ground brush motor according to the specification set by the preset data table, thereby having low cost and improving the reliability of the product.

Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A vacuum cleaner accessory identification system, comprising: the intelligent floor brush comprises a main control module (100), a dust collection motor control module (200) connected with the main control module (100), a floor brush motor control module (300) connected with the main control module (100), a power voltage reduction module (400) providing a 5-volt direct-current power supply, a voltage detection module (500) connected with the main control module (100) and detecting power voltage, and a dust collection motor driving module (600) connected with the main control module (100), wherein the main control module (100) obtains current signals of the floor brush motor control module (300) through a plurality of pulse signals, then combines the power voltage detected by the voltage detection module (500) according to the obtained current signals, and further matches with a preset data table in the main control module (100) to obtain specification information of the floor brush motor.

2. A vacuum cleaner accessory identification system as claimed in claim 1, wherein: the dust collection motor control module (200) comprises a first field effect transistor (U2), a first connecting resistor (R14) connected with the grid electrode of the first field effect transistor (U2), a first parallel resistor (R8) with one end connected with the first connecting resistor (R14) in parallel and the other end connected with the ground, a first filtering unit connected with the source electrode of the first field effect transistor (U2), and a first protection unit connected with the drain electrode of the first field effect transistor (U2).

3. A vacuum cleaner accessory identification system as claimed in claim 2, wherein: the ground brush motor control module (300) comprises a second field effect transistor (U4), a second connecting resistor (R16) connected with the grid electrode of the second field effect transistor (U4), a second parallel resistor (R17) with one end connected with the second connecting resistor (R16) in parallel and the other end connected with the ground, a second filtering unit connected with the source electrode of the second field effect transistor (U4), and a second protection unit connected with the drain electrode of the second field effect transistor (U4).

4. A vacuum cleaner accessory identification system as claimed in claim 3, wherein: the voltage detection module (500) comprises a third field effect transistor (Q2), a drain resistor (R5) with one end connected with the drain of the third field effect transistor (Q2) and the other end connected with a B + signal, a grid resistor (R9) with one end connected with the grid of the third field effect transistor (Q2) and the other end grounded, and a third filtering unit connected with the source of the third field effect transistor (Q2).

5. The vacuum cleaner accessory identification system of claim 4, wherein: the first filtering unit comprises a first filtering resistor (R4) connected with the source electrode of the first field effect transistor (U2), a second filtering resistor (R7) with one end connected with the source electrode of the first field effect transistor (U2) and the other end connected with the ground, and a first filtering capacitor (C5) with one end connected with the first filtering resistor (R4) and the other end connected with the ground.

6. The vacuum cleaner accessory identification system of claim 5, wherein: the second filter unit comprises a third filter resistor (R18) connected with the source electrode of the second field effect transistor (U4), a fourth filter resistor (R19) with one end connected with the source electrode of the second field effect transistor (U4) and the other end connected with the ground, and a second filter capacitor (C10) with one end connected with the third filter resistor (R18) and the other end connected with the ground.

7. The vacuum cleaner accessory identification system of claim 6, wherein: dust absorption motor drive module (600) is used for driving motor, and it includes fourth field effect transistor (Q1), divider resistance (R2) that one end and fourth field effect transistor (Q1) drain electrode link to each other, negative pole and divider resistance (R2) other end link to each other and anodal drive diode (D2) that links to each other with the VCC signal, third connecting resistance (R12) that one end and fourth field effect transistor (Q1) grid link to each other, and one end and the third connecting resistance other end link to each other and the fourth connecting resistance (R3) that the other end links to each other with ground.

8. A method for identifying accessories of a dust collector is characterized by comprising the following steps:

s1: when the system starts to be electrified, the main control module (100) sends a plurality of pulse signals to the ground brush motor control module (300);

s2: then the ground brush motor control module (300) feeds back an instant current signal to the main control module 100 according to the pulse signal;

s3: then the main control module (100) compares the power supply voltage detected by the voltage detection module (500) with a preset data table in the main control module (100) according to the instantaneous current signal, if the power supply voltage is matched with the preset data table, the step S4 is carried out, and if the power supply voltage is not matched with the preset data table, the power supply to the ground brush motor is stopped;

s4: and finally, obtaining the specification information of the floor brush motor, supplying power to the floor brush motor according to the specification information, calling a control program matched with the floor brush motor in the main control module 100, and controlling the working state of the floor brush motor to the end.

9. The cleaner accessory identification method of claim 8, wherein: the preset data table at least comprises power information, current power supply voltage, instantaneous current and locked rotor current, and the specification information of the ground brush motor at least comprises the locked rotor current.

Images