阅读说明：本技术 一种基于霍尔器件的刷头或其他配件识别系统及识别方法 (Brush head or other accessory identification system and identification method based on Hall device ) 是由 杨昌良 江宝恒 于 2021-08-31 设计创作，主要内容包括：一种基于霍尔器件的刷头或其他配件识别系统及识别方法,有用于驱动刷头或其他配件的电机,与电机相连的驱动电路、电源变换电路、微处理器、霍尔元件、刷头或其他配件磁体和蜂鸣器。磁体固定设置在刷头或其他配件上,霍尔元件与磁体对应设置用于获取磁体的磁信号,霍尔元件的输出端连接微处理器的输入端,微处理器的信号输出端分别连接驱动电路和蜂鸣器。霍尔元件将获得的磁通量转换成电压信号或开关信号送入微处理器,微处理器确定与接收的信号对应的刷头或其他配件的类型,从而确定控制驱动电路驱动电机工作,同时控制蜂鸣器进行匹配完成确认提示。本发明满足刷头或其他配件多功能的应用,丰富了刷头或其他配件的多功能。(A brush head or other accessory identification system and an identification method based on a Hall device are provided with a motor for driving the brush head or other accessories, a driving circuit connected with the motor, a power conversion circuit, a microprocessor, a Hall element, a brush head or other accessory magnet and a buzzer. The magnet is fixedly arranged on the brush head or other accessories, the Hall element and the magnet are correspondingly arranged to acquire a magnetic signal of the magnet, the output end of the Hall element is connected with the input end of the microprocessor, and the signal output end of the microprocessor is respectively connected with the driving circuit and the buzzer. The Hall element converts the obtained magnetic flux into a voltage signal or a switching signal and sends the voltage signal or the switching signal to the microprocessor, and the microprocessor determines the type of the brush head or other accessories corresponding to the received signal, thereby determining to control the driving circuit to drive the motor to work and simultaneously controlling the buzzer to match and complete the confirmation prompt. The multifunctional brush head meets the multifunctional application of the brush head or other accessories, and enriches the multifunctional of the brush head or other accessories.)

1. A brush head or other accessory identification system based on a Hall device comprises a motor (1) for driving the brush head or other accessories to work, a drive circuit (2) connected with the motor (1) for driving the motor (1), and a power conversion circuit (7) for providing power, it is characterized in that the toothbrush is also provided with a microprocessor (3), a Hall element (4), a brush head or other accessory magnet (5) and a buzzer (6), wherein the brush head or other accessory magnet (5) is fixedly arranged on the brush head or other accessory, the Hall element (4) and the brush head or other accessory magnet (5) are correspondingly arranged for acquiring a magnetic signal of the brush head or other accessory magnet (5), the output end of the Hall element (4) is connected with the input end of the microprocessor (3), and the signal output end of the microprocessor (3) is respectively connected with the driving circuit (2) and the buzzer (6).

2. A hall device based brushhead or other accessory identification system of claim 1, wherein the magnetic flux of the brushhead or other accessory magnet (5) corresponds to the type of brushhead accessory in which it is located, different types of brushhead accessories being fixedly fitted with brushhead or other accessory magnets (5) of different magnetic fluxes.

3. The Hall device based brushhead or other accessory identification system of claim 1, wherein said Hall element (4) is a digital Hall chip, or an analog Hall chip.

4. The brush head or other accessory identification system based on the Hall device according to claim 3, characterized in that when the Hall element (4) adopts a digital Hall chip, more than 1 digital Hall chip (4a) is provided, more than 1 brush head or other accessory magnet (5) corresponding to the number of the digital Hall chips (4a) is fixedly provided on the brush head or other accessory, the switch signal output by the digital Hall chip (4a) is directly connected with the switch signal input end of the microprocessor (3); when the Hall element (4) adopts an analog Hall chip (4b), only 1 analog Hall chip (4b) is arranged, 1 brush head or other accessory magnets (5) corresponding to 1 analog Hall chip (4b) are fixedly arranged on the brush head or other accessories, and analog signals output by the analog Hall chip (4b) are connected with an A/D conversion end of the microprocessor (3).

5. The brush head or other accessory identification system based on the Hall device according to claim 1, wherein the Hall element (4) obtains the magnetic flux of the brush head or other accessory magnet (5) and converts the magnetic flux into a voltage signal or a switching signal to be sent to the microprocessor (3), when the microprocessor (3) receives the voltage signal, the voltage signal is subjected to analog-to-digital conversion ADC, the type of the brush head or other accessory corresponding to the digital signal is determined according to the obtained digital signal, when the microprocessor (3) receives the switching signal, the type of the brush head or other accessory corresponding to the switching signal is determined directly according to the obtained switching signal, so that the drive circuit (2) is controlled to drive the motor (1) to drive the brush head or other accessory to vibrate according to the determined type of the brush head or other accessory, and meanwhile, the microprocessor (2) controls the buzzer (6) to carry out matching completion confirmation prompt.

6. The Hall device based brush head or other accessory identification system according to claim 1, wherein the A/D conversion terminal of the microprocessor (3) is further connected to the output terminal of the driving circuit (2) through a current sampling amplifying circuit (8), and the microprocessor (3) is configured to sample the output of the driving circuit (2) and adjust the output of the driving circuit (2) according to the sampling result.

7. A recognition method of a brush head or other accessory recognition system based on a Hall device is characterized by comprising the following steps:

1) installing a brush head or other accessories and starting the brush head or other accessories to work;

2) the Hall element obtains the magnetic flux of the brush head or other accessory magnets, converts the magnetic flux into a voltage signal or a switching signal and transmits the voltage signal or the switching signal to the microprocessor;

3) when the microprocessor receives the voltage signal, converting the voltage signal into a digital signal;

4) the microprocessor carries out data filtering processing on the digital signals or the switching signals to obtain real brush head or other accessory type data information;

5) the microprocessor matches the data of the types of the brush heads or other accessories with the data of the set brush heads or other accessories with different functions, and enters the next step when the corresponding types of the brush heads or other accessories are obtained, otherwise, the step (2) is returned;

6) the microprocessor selects a driving mode required by the brush head or other accessories and controls the buzzer to complete the prompt of matching;

7) the user hears the prompt of the buzzer, starts the motor to operate, and the microprocessor controls the driving circuit to drive the motor to work according to the selected driving mode; and when the user does not start the motor to run, returning to the step 6).

Technical Field

The present invention relates to a brushhead or other accessory identification system. In particular to a brush head or other accessory identification system and an identification method based on a Hall device.

Background

The field of automatic identification technology is one of the main contents of modern information technology. The information technology comprises physical signals, electric signal technology and sensor technology, wherein the automatic identification technology is generally applied to the combination of components in the electric toothbrush, most of the existing brands are based on the relatively complex automatic identification technology in the aspects of NFC and RFID, such as the RFID patent technology of Philips company, but the simple and applicable technical innovation is ignored, and the detection by using the circuit resistance value is usually relatively quick and convenient, the calculation is simple, the detection control is easy to realize, and the detection is stable.

The current global electric toothbrush head or other accessories related to the industry conditions have various types, namely functions of brushing teeth, brushing face, brushing tongue … and the like can be diversified, the installation method is not as similar as possible, even if the same brand is not completely innovated, a more applicable detection mode of the brush head or other accessories is not invented, and most of the electric toothbrush head or other accessories change the appearance on a main functional circuit and a structure. Generally, the conventional multi-brush head or other accessory electric toothbrush selects the brush head or other accessory mode, generally, the brush head or other accessory is installed, the corresponding function type of brush head or other accessory mode is selected by using a button of a brush body, and then the operation is performed. The prior art has at least the following disadvantages and shortcomings:

the power toothbrush may be controlled differently for each brand, at least in terms of control or application, and the brushhead or other attachment configuration may be different for each brand, so that more options are needed for the user. However, since the electric toothbrushes of each brand are different at least in control mode or application performance, the structures of the brush heads or other accessories are different from each brand, and different brush heads or other accessories have different brush bodies, the use is very inconvenient.

The non-contact automatic identification technology is widely applied to sensing information, the transmission technology comprises optics, sound waves, electromagnetic induction … … and the like, and is also applied to daily electronic products such as electric toothbrushes, wherein a Hall sensor is widely applied to measuring analog and digital signals, and the application of the Hall sensor to the electric toothbrushes becomes feasible.

At present, certain similar products exist in a non-contact type automatic identification technology of electric toothbrush heads or other accessories, but the cost is high, and the products of the same industry are all based on the NFC technology with higher cost.

Disclosure of Invention

The invention aims to provide a Hall device-based brush head or other accessory identification system and an identification method, which can control the output of an ultrasonic motor in different types according to different types of obtained brush heads or other accessories.

The technical scheme adopted by the invention is as follows: the utility model provides a brush head or other accessory identification system based on hall device, including be used for driving brush head or other accessories carry out the motor of work, with the motor links to each other and is used for the drive circuit of motor to and be used for providing the power supply transform circuit of power, still be provided with microprocessor, hall element, brush head or other accessory magnets and bee calling organ, wherein, brush head or other accessory magnets are fixed to be set up brush head or other accessories are last, hall element with brush head or other accessory magnets correspond the setting and are used for acquireing the magnetic signal of brush head or other accessory magnets, the output of hall element is connected microprocessor's input, microprocessor's signal output part connects drive circuit and bee calling organ respectively.

A recognition method of a brush head or other accessory recognition system based on a Hall device comprises the following steps:

1) installing a brush head or other accessories and starting the brush head or other accessories to work;

2) the Hall element obtains the magnetic flux of the brush head or other accessory magnets, converts the magnetic flux into a voltage signal or a switching signal and transmits the voltage signal or the switching signal to the microprocessor;

3) when the microprocessor receives the voltage signal, converting the voltage signal into a digital signal;

4) the microprocessor carries out data filtering processing on the digital signals or the switching signals to obtain real brush head or other accessory type data information;

5) the microprocessor matches the data of the types of the brush heads or other accessories with the data of the set brush heads or other accessories with different functions, and enters the next step when the corresponding types of the brush heads or other accessories are obtained, otherwise, the step (2) is returned;

6) the microprocessor selects a driving mode required by the brush head or other accessories and controls the buzzer to complete the prompt of matching;

7) the user hears the prompt of the buzzer, starts the motor to operate, and the microprocessor controls the driving circuit to drive the motor to work according to the selected driving mode; and when the user does not start the motor to run, returning to the step 6).

According to the identification system and the identification method for the brush head or other accessories based on the Hall device, automatic identification is installed on the brush head or other accessories, the automatic identification is used for controlling the output of the ultrasonic motor in different types according to the obtained brush heads or other accessories in different types, various frequency bands of the motor are reasonably utilized, the multifunctional application of the brush head or other accessories is met, and the multifunctional functions of the brush head or other accessories, such as the expansion of functions of an electric toothbrush, a hot air comb and the like, are enriched. Due to the fact that Hall parts are cheap and mature, a low-cost innovative scheme is adopted, and the requirements of the brush head or other accessories on more abundant market varieties are met.

Drawings

FIG. 1 is a block diagram of a brush head or other accessory identification system based on Hall devices according to the present invention;

FIG. 2 is a schematic diagram of a first embodiment of a Hall device based brushhead or other accessory identification system of the present invention;

FIG. 3 is a schematic diagram of a second embodiment of a Hall device based brushhead or other accessory identification system of the present invention;

FIG. 4 is a power conversion circuit of the present invention;

fig. 5 is a flow chart of an identification method of the brush head or other accessory identification system based on the hall device.

In the drawings

1: and a motor 2: driving circuit

3: the microprocessor 4: hall element

4 a: digital hall chip 4 b: analog Hall chip

5: brushhead or other accessory magnet 6: buzzer

7: power conversion circuit 8: battery with a battery cell

9: current sampling amplifying circuit

Detailed Description

The following detailed description of the recognition system and method for brush head or other accessories based on Hall device according to the present invention will be made with reference to the accompanying drawings and examples.

As shown in fig. 1, the brush head or other accessory recognition system based on the hall device of the present invention includes a motor 1 for driving a brush head or other accessories to work, a driving circuit 2 connected to the motor 1 for driving the motor 1, a power conversion circuit 7 for providing power, a microprocessor 3, a hall element 4, a brush head or other accessory magnet 5, and a buzzer 6, wherein the brush head or other accessory magnet 5 is fixedly disposed on the brush head or other accessories, the hall element 4 and the brush head or other accessory magnet 5 are correspondingly disposed for acquiring a magnetic signal of the brush head or other accessory magnet 5, an output end of the hall element 4 is connected to an input end of the microprocessor 3, and signal output ends of the microprocessor 3 are respectively connected to the driving circuit 2 and the buzzer 6. The brushhead or other attachment magnet 5 has a magnetic flux corresponding to the type of brushhead or other attachment in which it is located, different types of brushheads or other attachments being fixedly fitted with brushhead or other attachment magnets 5 of different magnetic fluxes.

As shown in fig. 2 and fig. 3, the hall element 4 is a digital hall chip or an analog hall chip. When the Hall element 4 adopts a digital Hall chip, more than 1 digital Hall chip 4a is arranged, more than 1 brush head or other accessory magnets 5 corresponding to the number of the digital Hall chips 4a are fixedly arranged on the brush head or other accessories, and switching signals output by the digital Hall chips 4a are directly connected with a switching signal input end of the microprocessor 3; when the Hall element 4 adopts an analog Hall chip 4b, only 1 analog Hall chip 4b is arranged, 1 brush head or other accessory magnets 5 corresponding to 1 analog Hall chip 4b are fixedly arranged on the brush head or other accessories, and analog signals output by the analog Hall chip 4b are connected with an A/D conversion end of the microprocessor 3.

The hall element 4 obtains the magnetic flux of the brush head or other accessory magnet 5 and converts the magnetic flux into a voltage signal or a switching signal to be sent to the microprocessor 3. When the microprocessor 3 receives a voltage signal, the type of the brush head or other accessories corresponding to the digital signal is determined according to the obtained digital signal after the voltage signal is subjected to A/D conversion, and when the microprocessor 3 receives a switching signal, the type of the brush head or other accessories corresponding to the switching signal is directly determined according to the obtained switching signal, so that the driving circuit 2 is controlled according to the determined type of the brush head or other accessories to drive the motor 1 to drive the brush head or other accessories to vibrate or rotate mechanically, and meanwhile, the microprocessor 2 controls the buzzer 6 to perform matching completion confirmation prompting.

As shown in fig. 2 and 3, in the identification system for the brush head or other accessories based on the hall device, the a/D conversion terminal of the microprocessor 3 may also be connected to the output terminal of the driving circuit 2 through a current sampling amplifying circuit 9, so that the microprocessor 3 samples the output of the driving circuit 2 and adjusts the output of the driving circuit 2 according to the sampling result.

In the embodiment of the invention:

a brushhead or other accessory magnet, being a magnet feature;

the driver circuit B4 may be a driver chip or an existing general discrete element driver circuit.

As shown in fig. 1 and 4, the power conversion circuit 7 performs conversion and voltage stabilization processing on the output of the battery 8.

As shown in FIG. 5, the identification method of the brush head or other accessory identification system based on the Hall device comprises the following steps:

1) installing a brush head or other accessories and starting the brush head or other accessories to work;

2) the Hall element obtains the magnetic flux of the brush head or other accessory magnets, converts the magnetic flux into a voltage signal or a switching signal and transmits the voltage signal or the switching signal to the microprocessor;

3) when the microprocessor receives the voltage signal, converting the voltage signal into a digital signal;

4) the microprocessor carries out data filtering processing on the digital signals or the switching signals to obtain real brush head or other accessory type data information;

5) the microprocessor matches the data of the types of the brush heads or other accessories with the data of the set brush heads or other accessories with different functions, and enters the next step when the corresponding types of the brush heads or other accessories are obtained, otherwise, the step (2) is returned;

6) the microprocessor selects a driving mode required by the brush head or other accessories and controls the buzzer to complete the prompt of matching;

7) the user hears the prompt of the buzzer, starts the motor to operate, and the microprocessor controls the driving circuit to drive the motor to work according to the selected driving mode; and when the user does not start the motor to run, returning to the step 6).

The brush head or other accessory identification system and method based on the Hall device can be applied to toothbrushes, hot air combs and the like. When used on a power toothbrush, the brush head or other accessory magnet is secured to the brush head of the toothbrush and the integral circuit is disposed on the body of the toothbrush. When the magnetic brush is used on the hot air comb, the brush head or other accessory magnets are fixed on the hot air comb head, and the whole circuit is arranged on the handle of the hot air comb.

The brush head or other accessory identification system and the identification method based on the Hall device are compared with the RFID with the same type of function properly, and the brush head or other accessory identification system has the following beneficial effects:

1. the cost analysis shows that the RFID cost is about 1-2 dollars, the Hall element cost can be controlled below 2 yuan RMB generally, and the manufacturing cost is reduced.

2. Manufacturing process analysis, the RFID and the invention can be embedded in a modularized way, the complexity of the processing process is almost equal to 3, and raw material purchasing analysis is carried out.

4. According to environment analysis, the RFID has certain radio radiation due to the radio frequency, the Hall element basically has zero radiation, and the load on a battery is reduced due to the fact that the circuit is simple, the power of the whole machine is slightly low.

5. The life analysis, the RFID scheme and the Hall element scheme are all electronic materials and can reach a common standard.

In the embodiment of the present invention, except for the specific description of the model of each device, the model of other devices is not limited, as long as the device can perform the above functions.

Those skilled in the art will appreciate that the drawings are only schematic illustrations of preferred embodiments, and the above-described embodiments of the present invention are merely provided for description and do not represent the merits of the embodiments.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.