Method for identifying different floor brush assemblies by cleaning equipment

Abstract

The invention discloses a method for a cleaning device to identify different floor brush assemblies, the cleaning device comprises a host and a plurality of different floor brush assemblies, a control unit A is arranged on the host, when the host is connected with the floor brush assemblies, the control unit A detects the current values of the floor brush assemblies, and the current curves of the floor brush assemblies during operation are different. The method comprises the following steps: defining a current value rising and falling stage of a floor brush assembly as a first stage, defining a stage that the current value of the floor brush assembly tends to be stable after rising and falling as a second stage, respectively detecting maximum current values of the floor brush assembly in the first stage and the second stage by a control unit A, and comparing the maximum current values with a threshold value; therefore, the types of a plurality of different floor brush assemblies are identified. After the host identifies different floor brush assemblies, different control methods can be adopted for the different floor brush assemblies, the function that one machine has multiple purposes is achieved, identification equipment such as a Hall sensor does not need to be installed, and cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and particularly relates to a method for a cleaning equipment to identify different floor brush components. Background Art

[0002] With the wide use of cleaning equipment, the user's demand for cleaning equipment that can be applicable to different usage scenarios has gradually increased. Equipping a main body with different floor brush components is a good method. However, since the functions and usage scenarios of each floor brush component are different, such as bed brushes, water brushes, carpet brushes, floor brushes, vibrating brushes, etc., the control logics of the main body for different floor brush components are also different. Therefore, before normal operation, the main body needs to identify which floor brush component is installed at this time to enable different control logics. Existing technologies often use identification devices such as Hall sensors, which have a high cost, and it is difficult to install identification devices such as Hall sensors on all floor brush components when the structural space of the floor brush component is limited. Summary of the Invention

[0003] In order to overcome the above deficiencies, the present invention provides a method for a cleaning equipment to identify different floor brush components. The cleaning equipment includes a main body and several different floor brush components. A control unit A is provided on the main body. When the main body is connected to the floor brush component, the control unit A detects the current value of the floor brush component. The current curves of several different floor brush components during operation are different. The stage when the current value of the floor brush component surges and then falls back is defined as the first stage, and the stage when the current value of the floor brush component surges, falls back, and then tends to be stable is defined as the second stage. The control unit A respectively detects the maximum current values of the floor brush component in the first stage and the second stage, and compares them with the thresholds, so as to identify the types of several different floor brush components.

[0004] Wherein, the number of thresholds is determined according to the number of floor brush components.

[0005] Wherein, the main body further includes a power supply unit, a switch unit S1, and a switch unit S2. The floor brush component includes

[0006] a power conversion module; the control unit A detects the current value in the loop through the a0 pin, controls the on / off of the switch unit S1 through the a1 pin, controls the on / off of the switch unit S2 through the a2 pin, and the switch unit S1 and the switch unit S2 are electrically connected to the power conversion module.

[0007] Wherein, the main body further includes a resistor R1. The resistor R1 is connected in series in the loop where the main body and the floor brush component are connected. The control unit A detects the voltage value across the resistor R1 through the a0 pin, so as to calculate the current value flowing through the floor brush component.

[0008] Among them, several different floor brush components are respectively provided with different control units B. The different control units B independently control the loads on their respective floor brush components. Before the loads operate normally, the different control units B first turn on the loads to operate for a set duration according to their respective different programs, and then selectively turn off several loads and keep them off for a duration of T1, so as to enable several different floor brush components to generate different current curves. The control unit A distinguishes several different floor brush components according to the different current curves.

[0009] Among them, the floor brush component further includes a switch unit S3. The control unit B controls the on-off of the switch unit S3 through the b1 pin, and the switch unit S3 is electrically connected to the load.

[0010] Among them, the control unit A distinguishes several different floor brush components according to the different durations of keeping the loads off and in the off state for a duration of T1.

[0011] The beneficial effects of the present invention are as follows: After the host identifies different floor brush components, different control methods can be adopted for different floor brush components to realize the function of multi-purpose use of one machine. The method of current identification does not require the installation of identification devices such as Hall induction devices, saving costs, and solving the problem that it is difficult to install identification devices such as Hall sensors on all floor brush components in the case of limited structural space of the floor brush components. Description of the Drawings

[0012] Figure 1 is a schematic circuit diagram of the present invention;

[0013] Figure 2 is a current curve diagram of different floor brush components in an embodiment of the present invention;

[0014] Figure 3 is a current curve diagram of different floor brush components in another embodiment of the present invention;

[0015] Figure 4 is a current curve diagram of different floor brush components in yet another embodiment of the present invention. Detailed Embodiments

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] Such as Figure 1As shown, a method for a cleaning device to identify different floor brush components. The cleaning device includes a main body and several different floor brush components. A control unit A is provided on the main body. When the main body is connected to a floor brush component, the control unit A detects the current value of the floor brush component. The current curves of several different floor brush components during operation are different. The stage when the current value of the floor brush component surges and then drops is defined as the first stage, and the stage when the current value of the floor brush component surges, drops, and then tends to be stable is defined as the second stage. The control unit A respectively detects the maximum current values of the floor brush component in the first stage and the second stage, and compares them with a threshold value to identify the types of several different floor brush components. Different floor brush components include different motors, water pumps, lighting lamps and different loads, so that the current values of different floor brush components are different. When the motor starts, the rotor is stationary and the back electromotive force has not been established yet, so the current will be very large. When the motor starts to rotate, the back electromotive force increases and the current will decrease until it tends to be stable.

[0018] Taking one of the floor brush components as an example, the circuit control relationship between the main body and the floor brush component is described as follows: The main body further includes a power supply unit, a switch unit S1 and a switch unit S2. The floor brush component includes a power conversion module. The control unit A detects the current value in the circuit through the a0 pin, controls the on-off of the switch unit S1 through the a1 pin, controls the on-off of the switch unit S2 through the a2 pin, and the switch unit S1 and the switch unit S2 are electrically connected to the power conversion module. When the switch unit S1 and the switch unit S2 are turned on, the power supply unit of the main body can

[0019] supply power to the floor brush component, and the power conversion module in the floor brush component can convert the voltage into a voltage available for the load to work.

[0020] The main body further includes a resistor R1. The resistor R1 is connected in series in the circuit connecting the main body and the floor brush component. The control unit A detects the voltage value across the resistor R1 through the a0 pin, and thus calculates the current value flowing through the floor brush component.

[0021] As Figure 2 shown, in an embodiment, three different floor brush components are used as examples. In the figure, the curves L1, L2, and L3 respectively correspond to the current curves of three different floor brush components. At this time, a threshold value C1 is set. It can be seen that the maximum current value of the curve L1 in the first stage is less than the threshold value C1, and the maximum current value in the second stage is also less than the threshold value C1; the maximum current value of the curve L2 in the first stage is greater than the threshold value C1, and the maximum current value in the second stage is less than the threshold value C1; the maximum current value of the curve L3 in the first stage is greater than the threshold value C1, and the maximum current value in the second stage is also greater than the threshold value C1. By comparing the maximum current values with the threshold value C1 in the first stage and the second stage, three different floor brush components can be distinguished.

[0022] In another embodiment, when there are four local brush assemblies, a single threshold C1 cannot distinguish the four different local brush assemblies. In this case, a second threshold C2 can be added, where the value of threshold C2 is greater than that of threshold C1, to distinguish the four different local brush assemblies. As Figure 3 shown, the maximum current value of curve L1 in the first stage is less than threshold C1, and the maximum current value in the second stage is also less than threshold C1; the maximum current value of curve L2 in the first stage is greater than threshold C1 and less than threshold C2, and the maximum current value in the second stage is less than threshold C1; the maximum current value of curve L3 in the first stage is greater than threshold C1 and less than threshold C2, and the maximum current value in the second stage is also greater than threshold C1 and less than threshold C2; the maximum current value of curve L4 in the first stage is greater than threshold C2, and the maximum current value in the second stage is greater than threshold C1 and less than threshold C2. By comparing the maximum current value with thresholds C1 and C2 in the first and second stages, the four different local brush assemblies can be distinguished. Additionally, it can be readily envisioned that two thresholds can distinguish six different

[0023] local brushes, such as those that differ from curves L1, L2, L3, and L4, where the maximum current value in the first stage is greater than threshold C2 and the maximum current value in the second stage is less than threshold C1; or the maximum current value in the first stage is greater than threshold C2 and the maximum current value in the second stage is also greater than threshold C2.

[0024] Determine the number of thresholds based on the number of local brush assemblies. When the number of different local brush assemblies is less than or equal to 3, only one threshold C1 is required; when the number of different local brush assemblies is less than or equal to 6, two thresholds C1 and C2 are required; when the number of different local brush assemblies is less than or equal to 10, three thresholds C1, C2, and C3 are required; when the number of different local brush assemblies is less than or equal to 15, four thresholds C1, C2, C3, and C4 are required; and so on. When the number of different local brush assemblies is less than or equal to n, thresholds are required.

[0025] When there are too many thresholds, the gap between the thresholds gradually decreases. When the current acquisition is not accurate enough, misjudgment is likely to occur. At this time, a control unit B can be installed on the floor brush assembly. Several different floor brush assemblies are respectively provided with different control units B, and different control units B independently control the loads on their respective floor brush assemblies. Before the load operates normally, different control units B first turn on the load to operate for a set duration according to their respective different programs, and then selectively turn off several loads and keep them off for a duration of T1, so as to make several different floor brush assemblies generate different current curves. A control unit A is set on the host, and the control unit A distinguishes several different floor brush assemblies according to different current curves. After the host identifies different floor brush assemblies, different control methods can be adopted for different floor brush assemblies to achieve the function of multi-purpose use of one machine. The method of current identification does not require the installation of identification devices such as Hall sensors, saving costs, and solving the problem that it is difficult to install identification devices such as Hall sensors on all floor brush assemblies when the structural space of the floor brush assembly is limited. Several different floor brush assemblies can be a bed brush, a water brush, a carpet brush, a floor brush, a vibrating brush, etc., and the loads on the floor brush assembly can be a roller brush motor, a water pump, a lighting lamp, etc., which are equipped according to the functions of different floor brush assemblies.

[0026] When the load is working, the current increases. When the load stops working, the current decreases to around 0 mA. For the convenience of understanding, the following takes the ideal state where the current decreases to 0 mA after the load stops working as an example for explanation. In actual situations, the current may be around 0 mA, but it is not a standard 0 mA, which is not considered here for the time being.

[0027] In addition, the floor brush assembly further includes a switch unit S3. The control unit B controls the on / off of the switch unit S3 through the b1 pin, and the switch unit S3 is electrically connected to the load. Thus, the control unit B can control the on / off of the load. When the switch unit S3 is closed, the load works. When the switch unit S3 is opened, the load stops working.

[0028] Such as Figure 4As shown, in one embodiment, four different floor brush components are taken as examples. In the figure, the curves L1, L2, L3, and L4 respectively correspond to the current curves of the four different floor brush components. It is not difficult to see that in the first stage, the maximum current value of the floor brush component corresponding to curve L1 is less than the threshold C1, and the maximum current values of the floor brush components corresponding to curves L2, L3, and L4 are all greater than the threshold C1. At this time, it is relatively easy to distinguish the floor brush component corresponding to curve L1. In the second stage, the maximum current value of the floor brush component corresponding to curve L2 is greater than the threshold C1. The current values of the floor brush components corresponding to curves L3 and L4 are first 0 mA and last for a period of time, then continue to rise and exceed the threshold C1 and then fall back and tend to be stable. At this time, monitor and keep the load closed, that is, the duration T1 when the current value of the floor brush component is 0 mA, and compare the duration T1 with the standard set value to confirm the type of the floor brush component. Specifically, the control unit B controls the load of the floor brush component corresponding to curve L3 to maintain a current of 0 mA for a duration of t1 milliseconds, and the control unit B controls the load of the floor brush component corresponding to curve L4 to maintain a current of 0 mA for a duration of t2 milliseconds. At this time, the control unit A on the host periodically collects the real-time current value of the floor brush component and distinguishes the floor brush components corresponding to curves L3 and L4 according to the different durations when the current values of each floor brush component are 0 mA. After the duration when the load remains closed is long enough to distinguish different floor brush components, then turn on the load to start the normal operation of the floor brush. At this time, by combining the threshold and the different durations when the load is turned off and remains off after turning on the load to maintain a current of 0 mA, comprehensively determine the type of the floor brush. The method is reliable and has higher accuracy. Compared with the combination method, the method of solely using the comparison with the threshold to determine the type of the floor brush does not require setting the control unit B on the floor brush component to control the opening and closing of the load on the floor brush component, reducing the cost. In actual situations, the separate threshold method or the comprehensive method of threshold plus current of 0 mA can be adopted according to the situation, which is not limited here.

[0029] It should be noted that in order to make the image in the figure of the embodiment of the present invention clear and concise, the starting part of the second stage is set as the same starting point. In actual situations, perhaps not all the curves of the floor brush components start at the same starting point in the second stage. Take the point after the current value rises, falls back, and tends to be stable as the starting point of the second stage.

[0030] Based on the inspiration of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

[0031] ​

Claims

1. A method for a cleaning device to identify different floor brush assemblies, the cleaning device comprising a host and a plurality of different floor brush assemblies, characterized in that: A control unit A is provided on the host. When the host is connected to the floor brush assembly, the control unit A detects the current value of the floor brush assembly. The current curves of several different floor brush assemblies during operation are different. The stage in which the current value of the floor brush assembly rises and then falls back is defined as the first stage, and the stage in which the current value of the floor brush assembly rises and then tends to be stable is defined as the second stage. The control unit A detects the maximum current value of the floor brush assembly in the first stage and the second stage respectively, and compares it with the threshold value, so as to identify several different types of the floor brush assemblies.

2. A method for identifying different floor brush assemblies of a cleaning device according to claim 1, characterized in that: The number of thresholds is determined according to the number of the floor brush assemblies.

3. A method for identifying different floor brush assemblies of a cleaning device according to claim 1, characterized in that: The host also includes a power supply unit, a switch unit S1 and a switch unit S2, and the floor brush assembly includes a power conversion module; the control unit A detects the current value in the circuit through the a0 pin, controls the on and off of the switch unit S1 through the a1 pin, and controls the on and off of the switch unit S2 through the a2 pin, and the switch unit S1 and the switch unit S2 are electrically connected to the power conversion module.

4. A method for identifying different floor brush assemblies of a cleaning device according to claim 3, characterized in that: The host also includes a resistor R1, which is connected in series in a loop connecting the host and the floor brush assembly. The control unit A detects the voltage value across the resistor R1 through the a0 pin, thereby calculating the current value flowing through the floor brush assembly.

5. The method for identifying different floor brush assemblies of a cleaning device according to claim 1, characterized in that: Different control units B are respectively provided for several different floor brush assemblies, and different control units B independently control the loads on the floor brush assemblies to which they are located. Before the loads operate normally, different control units B first turn on the loads for a set period of time according to their own different programs, and then selectively turn off several loads and keep the off state for a period of T1, so that different floor brush assemblies generate different current curves. The control unit A distinguishes different floor brush assemblies according to different current curves.

6. A method for identifying different floor brush assemblies of a cleaning device according to claim 5, characterized in that: The floor brush assembly further includes a switch unit S3. The control unit B controls the on and off of the switch unit S3 via the b1 pin, and the switch unit S3 is electrically connected to the load.

7. The method for identifying different floor brush assemblies of a cleaning device according to claim 5, characterized in that: The control unit A distinguishes between several different floor brush assemblies according to the different durations T1 of turning off the load and keeping the off state.

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