CN111374591A - Control system and method of dust collector - Google Patents

Control system and method of dust collector Download PDF

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Publication number
CN111374591A
CN111374591A CN201811635828.9A CN201811635828A CN111374591A CN 111374591 A CN111374591 A CN 111374591A CN 201811635828 A CN201811635828 A CN 201811635828A CN 111374591 A CN111374591 A CN 111374591A
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Prior art keywords
module
control module
power supply
control
led display
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CN201811635828.9A
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Chinese (zh)
Inventor
彭冠
李润朝
朱立湘
尹志明
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Huizhou Blueway Electronic Co Ltd
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Huizhou Blueway Electronic Co Ltd
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Priority to CN201811635828.9A priority Critical patent/CN111374591A/en
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2889Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423Input/output
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/20Pc systems
    • G05B2219/25Pc structure of the system
    • G05B2219/25257Microcontroller

Abstract

A control system of a dust collector comprises a control module, an air suction control module, a floor brush control module, a sampling module, an LED display module, a key module and a power supply VCC for supplying power to each module; the LED floor brush control device is characterized in that the key module is in signal connection with the control module, the control module is in signal connection with the air suction control module and the floor brush control module respectively, the control module is in signal connection with the LED display module, the control module is further connected with a sampling module for collecting power supply data, the control module receives an instruction of the key module to control the motor work of the air suction control module and the floor brush control module, the LED display module comprises an LED display screen, and the key module comprises a key switch. The miniaturized and simplified control system greatly reduces the volume of the dust collector, greatly improves the convenience, and improves the production efficiency and the practicability; the control method realizes the overcharge and overcurrent protection of the power supply and ensures the use safety of products.

Description

Control system and method of dust collector
Technical Field
The invention belongs to the field of system control, and particularly relates to a control system and method of a dust collector.
Background
The development of dust collector products is different day by day, the dust collector brings great convenience to people, and the internal system of the handheld dust collector generally comprises independent modules, becomes independent parts, and assembles all parts of the dust collector, so that the internal system becomes a cleaning tool with more scientific and technological sense and various functions and strong performance in appearance, but the separated structure often brings overlarge volume to the dust collector under the condition of complicated and various functions, and complex assembly and various accessories are realized, so that the dust collector designed for convenience originally is realized, and the assembly stage before the storage and use process becomes complicated and inconvenient.
The dust collector is generally provided with an indicator lamp for displaying a charging state and a discharging state, the indicator lamp emits light abnormally, and 2 conditions exist, namely the problem of a power supply source and the damage of the indicator lamp, but the indicator lamp or the power supply source needs to be replaced for many times to determine the fault reason during maintenance or production test, and the time is consumed. In addition, when the motor of the vacuum cleaner needs to stop working, the motor needs to wait for a period of time and then stop slowly, and the effect that the motor stops working immediately cannot be realized.
Disclosure of Invention
In order to overcome the technical problems, the invention provides a control system and a method of a dust collector, wherein the control system is of an integrated structure, and the miniaturized and simplified control system greatly reduces the volume of the dust collector, so that the dust collector is convenient to place and practical, and the convenience is greatly improved.
A control system of a dust collector comprises a control module, an air suction control module, a floor brush control module, a sampling module, an LED display module, a key module and a power supply VCC for supplying power to each module;
the LED floor brush control device is characterized in that the key module is in signal connection with the control module, the control module is in signal connection with the air suction control module and the floor brush control module respectively, the control module is in signal connection with the LED display module, the control module is further connected with a sampling module for collecting power supply data, the control module receives an instruction of the key module to control the motor work of the air suction control module and the floor brush control module, the LED display module comprises an LED display screen, and the key module comprises a key switch.
Preferably, the LED display module further includes a dual-color LED for displaying the charging and discharging status of the power supply VCC, and the control module includes a detection circuit for detecting whether the dual-color LED is damaged.
Preferably, the detection circuit include resistance R8 and resistance R9 be connected with power supply, and the MCU unit, double-colored LED include red diode and green diode, the negative pole of red diode and green diode connect the MCU unit, the anodal connecting resistance R8 of red diode, the anodal connecting resistance R9 of green diode, the anodal MCU unit of still connecting of red diode and green diode.
Preferably, the air suction control module comprises an air suction motor, and the air suction motor is connected with a motor MOS for controlling the air suction motor to work, a brake MOS for controlling the air suction motor to stop working, and an interlock circuit for controlling the motor MOS and the brake MOS not to be conducted simultaneously.
Preferably, the interlock circuit comprises two connected triodes and a plurality of resistors.
Preferably, a communication module for converting the action signal into a communication signal and a key signal is connected between the key module and the control module via a signal, the communication module includes a conversion circuit, the conversion circuit includes an RX port and a TX port which are in communication connection with the control module, the conversion circuit further includes a SW port for detecting a key switch on the key module, the SW port determines that the key is pressed if the SW port detects that the key switch is pressed for a preset time, and the key is pressed as the key signal.
A control method of a dust collector comprises the following steps:
s1: starting, initializing system configuration;
s2: the control module calculates the electric quantity of the power supply through the data collected by the sampling module, and displays the electric quantity on the LED display screen through the LED display module;
s3: detecting a charging access signal, judging whether a power supply is charging, if so, detecting overcharge and overcurrent, and if not, carrying out the next step;
s4: detecting whether the key is pressed, if so, performing the next step, and if not, returning to the step S2;
s5: judging whether the machine is started or not, if not, detecting overcharge and overcurrent, and if so, carrying out the next step;
s6: turning off the charging MOS and the discharging MOS, and turning off the LED display screen;
s7: and judging whether alarm prompt is needed or not, if so, displaying the alarm prompt by an LED, and otherwise, entering a standby dormant state.
Preferably, the system initialization step further comprises the following steps:
and detecting a communication interface between the control module and the key module, judging whether the control module and the key module are communicated with each other, if not, jumping to the step S3, and if so, communicating.
Preferably, the detection of the overcharge and overcurrent in step S3 includes the following steps:
s31: turning off the discharging MOS, and turning on the charging MOS and the LED display screen;
s32: detecting the voltage of the power supply, judging whether the power supply is overcharged, and jumping to the step S6 if the power supply is overcharged; if not, the next step S33 is carried out;
s33: and detecting the discharging current, judging whether the charging is over-current, jumping to the step S6 if the charging is over-current, and returning to the step S2 if the charging is not over-current.
Preferably, the detection of the overcharge and overcurrent in step S5 includes the following steps:
s51: turning on a discharge MOS, turning on an LED display, and starting up the system;
s52: detecting the voltage of the power supply, judging whether the power supply is over-discharged or not, and if so, performing step S6; if not, the next step S52 is carried out;
s53: and detecting the discharge current, judging whether the discharge current is over-current, if so, performing the step S6, and if not, returning to the step S2.
The invention provides a control system and a method of a dust collector, wherein the control system is of an integrated structure, and the miniaturized and simplified control system greatly reduces the volume of the dust collector, so that the dust collector is convenient to place and practical, and the convenience is greatly improved; the double-color LED can reflect the charging and discharging states of the power supply, and the detection circuit can detect whether the double-color LED is damaged, so that the production efficiency and the practicability are improved; the brake MOS can stop the work of the air suction motor immediately, and the interlocking circuit avoids the condition of short circuit caused by the simultaneous conduction of the motor MOS and the brake MOS, thereby improving the safety; the control method realizes the overcharge and overcurrent protection of the power supply, automatically closes the charging MOS, the discharging MOS and the LED display screen under the overcharge or overdischarge condition, avoids further damage or battery explosion, ensures the use safety of products, and has the alarm prompt function.
Drawings
FIG. 1 is a block diagram of the connection of the control system of the present invention;
FIG. 2 is a flow chart of a control method of the present invention;
FIG. 3 is a circuit diagram of the detection circuit of the present invention;
FIG. 4 is a circuit diagram of an interlock circuit of the present invention;
fig. 5 is a circuit diagram of a communication module according to the present invention.
Detailed Description
The invention is further elucidated with reference to the figures and embodiments.
Referring to fig. 1, a control system of a vacuum cleaner comprises a control module, an air suction control module, a floor brush control module, a sampling module, an LED display module and a key module, and a power supply VCC for supplying power to each module, the modules and the power supply VCC being integrated in a system, the invention reduces the controllers of other parts and peripheral circuits attached to the controllers, only keeps one control module and the peripheral circuits thereof, deletes the communication circuits of the prior parts, simplifies the circuit layout, simplifies the software design of the whole system, reduces the cost, the software control is more flexible and accurate, and the problem of abnormal communication caused by frame loss in communication of each part of the existing circuit is solved;
the LED display module comprises an LED display screen, the key module comprises a key switch, the air suction control module comprises an air suction motor, and the floor brush control module comprises a floor brush motor; the external equipment only comprises the air suction motor, the floor brush motor and the key switch, so that the connection of peripheral circuits is simplified, and the production, the detection and the maintenance are easier; the modules and the power supply are integrated on the same PCB, voltage protection, secondary overcharge protection, temperature protection, current protection, charging protection and external communication functions can be realized, and the key switch is also an external communication interface and can communicate with an upper computer.
Referring to fig. 3, the LED display module further includes a dual-color LED for displaying a charging and discharging state of the power supply VCC, and the control module includes a detection circuit for detecting whether the dual-color LED is damaged; the detection circuit comprises a resistor R8 and a resistor R9 which are connected with a power supply, and an MCU unit, wherein the two-color LED comprises a red diode and a green diode, the negative electrodes of the red diode and the green diode are connected with the MCU unit, the positive electrode of the red diode is connected with the resistor R8, the positive electrode of the green diode is connected with the resistor R9, and the positive electrodes of the red diode and the green diode are also connected with the MCU unit. When the LED lamp works normally, the MCU unit pulls the negative electrode pins of the red diode and the green diode down, the double-color LED correspondingly lights up a red lamp and a green lamp, the MCU unit detects the voltages of two positive electrode pins of the double-color LED through the AD function and compares the voltages with data preset in the MCU unit, and whether the double-color LED works normally or not can be known; the specific working principle is as follows: referring to the attached drawing, when a red diode of a two-color LED is broken due to damage, a pin 1 and a pin 2 are broken, and the voltage at a point 2 is the voltage of a power supply VCC, so when the MCU detects that the voltage at the point 2 is VCC, the breakage of the red diode is indicated; when the red diode of the two-color LED is damaged due to short circuit, the pin 1 and the pin 2 are in short circuit, because the pin 1 is pulled down by the MCU, the pin 2 is also low, and when the MCU unit detects that the pin 2 is low voltage, the short circuit damage of the red diode is described. In the production test process, whether good or bad through system automated inspection double-colored LED, and the communication shows on the LED display screen, operating personnel just knows double-colored LED and damages, need not go to look over the double-colored LED of product one by one and whether light, avoid operating personnel because of the misdetection that visual fatigue brought, also can damage through the double-colored LED of host computer self-checking simultaneously, thereby judge when the pilot lamp does not show, be double-colored LED damage or battery package trouble, if double-colored LED damages, the battery package still can continue to use, avoid the misjudgment, reduce the time of maintenance.
Referring to fig. 4, the suction control module includes a suction motor, and the suction motor is connected to a motor MOS for controlling the suction motor to operate, a brake MOS for controlling the suction motor to stop operating, and an interlock circuit for controlling the motor MOS and the brake MOS not to be simultaneously turned on; the interlock circuit comprises two connected triodes and a plurality of resistors, when the motor MOS (Q2) and the brake MOS (Q3) are conducted simultaneously, a short circuit between P + and P-can be caused, the performance of components is damaged, and the interlock circuit can solve the problem, and the following is a truth table of the circuit in the figure 4:
Figure 689221DEST_PATH_IMAGE001
when the control pin of the Motor is high, the Q2 is conducted, no matter what signal the Brake input is, the pin 5 and the pin 6 of the Q1 are directly pulled down through the NPN1 in the Q1, and the Q3 cannot be conducted, so that the Q3 is locked when the Q2 works, the Q3 is not allowed to work, an interlocking function is realized, and the situation that the Brake input is conducted at the same time is avoided.
Referring to fig. 5, a communication module for converting the action signal into a communication signal and a key signal is connected between the key module and the control module, the communication module includes a conversion circuit, the conversion circuit includes an RX port and a TX port communicatively connected to the control module, the conversion circuit further includes a SW port for detecting a key switch on the key module, the SW port determines that the key is pressed if the SW port detects that the key switch is pressed for a preset time, the key is pressed as a key signal, in the figure, S1 is a key switch, an RX port, an SW port and a TX port are connected with an MCU unit, a DAT/SW pin of the key switch S1 can carry out single-wire serial port communication with the outside, contact terminals of a power supply or a battery pack and a dust collector tool are reduced, the size of the terminals is reduced, the miniaturization design of a product is realized, the product carries out communication with a minimum structure, and communication signals are stable.
A control method of a vacuum cleaner, referring to fig. 2, comprising the steps of:
s1: starting, initializing system configuration;
s2: the control module calculates the electric quantity of the power supply through the data collected by the sampling module, and displays the electric quantity on the LED display screen through the LED display module;
s3: detecting a charging access signal, judging whether a power supply is charging, if so, detecting overcharge and overcurrent, and if not, carrying out the next step;
the detection of the overcharge and overcurrent in the step S3 includes the steps of:
s31: turning off the discharging MOS, and turning on the charging MOS and the LED display screen;
s32: detecting the voltage of the power supply, judging whether the power supply is overcharged, and jumping to the step S6 if the power supply is overcharged; if not, the next step S33 is carried out;
s33: and detecting the discharging current, judging whether the charging is over-current, jumping to the step S6 if the charging is over-current, and returning to the step S2 if the charging is not over-current.
S4: detecting whether the key is pressed, if so, performing the next step, and if not, returning to the step S2;
s5: judging whether the machine is started or not, if not, detecting overcharge and overcurrent, and if so, carrying out the next step;
the detection of the overcharge and overcurrent in the step S5 includes the following steps:
s51: turning on a discharge MOS, turning on an LED display, and starting up the system;
s52: detecting the voltage of the power supply, judging whether the power supply is over-discharged or not, and if so, performing step S6; if not, the next step S52 is carried out;
s53: and detecting the discharge current, judging whether the discharge current is over-current, if so, performing the step S6, and if not, returning to the step S2.
S6: turning off the charging MOS and the discharging MOS, and turning off the LED display screen;
s7: and judging whether alarm prompt is needed or not, if so, displaying the alarm prompt by an LED, and otherwise, entering a standby dormant state.
The method also comprises the following steps after the system initialization step: and detecting a communication interface between the control module and the key module, judging whether the control module and the key module are communicated with each other, if not, jumping to the step S3, and if so, communicating.
The control method monitors and monitors the voltage of the power supply in real time, calculates the electric quantity, can display the electric quantity on the LED display screen, realizes the overcharge, overdischarge and overcurrent protection of the power supply and the LED indication and alarm functions, improves the functional stability of a dust collector product, and prolongs the service life of the dust collector.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. A control system of a dust collector is characterized in that: the intelligent floor brush comprises a control module, an air suction control module, a floor brush control module, a sampling module, an LED display module, a key module and a power supply VCC for supplying power to each module;
the LED floor brush control device is characterized in that the key module is in signal connection with the control module, the control module is in signal connection with the air suction control module and the floor brush control module respectively, the control module is in signal connection with the LED display module, the control module is further connected with a sampling module for collecting power supply data, the control module receives an instruction of the key module to control the motor work of the air suction control module and the floor brush control module, the LED display module comprises an LED display screen, and the key module comprises a key switch.
2. The control system of a vacuum cleaner as claimed in claim 1, wherein: the LED display module further comprises a double-color LED for displaying the charging and discharging states of the power supply VCC, and the control module comprises a detection circuit for detecting whether the double-color LED is damaged or not.
3. The control system of a vacuum cleaner according to claim 2, wherein: detection circuitry include resistance R8 and resistance R9 be connected with power supply to and the MCU unit, double-colored LED include red diode and green diode, the negative pole of red diode and green diode connect the MCU unit, the anodal connecting resistance R8 of red diode, the anodal connecting resistance R9 of green diode, the anodal MCU unit of still connecting of red diode and green diode.
4. The control system of a vacuum cleaner as claimed in claim 1, wherein: the suction control module comprises a suction motor, wherein the suction motor is connected with a motor MOS for controlling the suction motor to work, a brake MOS for controlling the suction motor to stop working, and an interlocking circuit for controlling the motor MOS and the brake MOS not to be simultaneously conducted.
5. The control system of a vacuum cleaner according to claim 4, wherein: the interlocking circuit comprises two connected triodes and a plurality of resistors.
6. The control system of a vacuum cleaner as claimed in claim 1, wherein: the signal connection between button module and the control module has the communication module who turns into communication signal and button signal with the action signal, communication module include converting circuit, converting circuit include with the control module RX port and TX port that carry out communication connection, converting circuit still include the SW port that is used for detecting button switch on the button module, the SW port detect button switch and press down the time of presetting and judge and be the button and press down the incident, the button press down the incident and be the button signal.
7. A control method of a dust collector is characterized in that: the method comprises the following steps:
s1: starting, initializing system configuration;
s2: the control module calculates the electric quantity of the power supply through the data collected by the sampling module, and displays the electric quantity on the LED display screen through the LED display module;
s3: detecting a charging access signal, judging whether a power supply is charging, if so, detecting overcharge and overcurrent, and if not, carrying out the next step;
s4: detecting whether the key is pressed, if so, performing the next step, and if not, returning to the step S2;
s5: judging whether the machine is started or not, if not, detecting overcharge and overcurrent, and if so, carrying out the next step;
s6: turning off the charging MOS and the discharging MOS, and turning off the LED display screen;
s7: and judging whether alarm prompt is needed or not, if so, displaying the alarm prompt by an LED, and otherwise, entering a standby dormant state.
8. The control method of a vacuum cleaner according to claim 7, wherein: the method also comprises the following steps after the system initialization step:
and detecting a communication interface between the control module and the key module, judging whether the control module and the key module are communicated with each other, if not, jumping to the step S3, and if so, communicating.
9. The control method of a vacuum cleaner according to claim 7, wherein: the detection of the overcharge and overcurrent described in step S3 includes the following steps:
s31: turning off the discharging MOS, and turning on the charging MOS and the LED display screen;
s32: detecting the voltage of the power supply, judging whether the power supply is overcharged, and jumping to the step S6 if the power supply is overcharged; if not, the next step S33 is carried out;
s33: and detecting the discharging current, judging whether the charging is over-current, jumping to the step S6 if the charging is over-current, and returning to the step S2 if the charging is not over-current.
10. The control method of a vacuum cleaner according to claim 7, wherein: the detection of the overcharge and overcurrent described in step S5 includes the following steps:
s51: turning on a discharge MOS, turning on an LED display, and starting up the system;
s52: detecting the voltage of the power supply, judging whether the power supply is over-discharged or not, and if so, performing step S6; if not, the next step S52 is carried out;
s53: and detecting the discharge current, judging whether the discharge current is over-current, if so, performing the step S6, and if not, returning to the step S2.
CN201811635828.9A 2018-12-29 2018-12-29 Control system and method of dust collector Pending CN111374591A (en)

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