RU218077U1 - ELECTRIC HAIR DRYER WITH WI-FI CONTROL - Google Patents

Abstract

The utility model relates to household devices controlled remotely using a Wi-Fi connection. Essence: an electric hair dryer contains a remote control unit for its operation built into the body, which, among other things, contains a hair dryer conversion module, which is configured to process signals with the release of an informative Wi-Fi signal. At the same time, the conversion module contains a hair dryer microprocessor with an analysis and filtering unit and a control device connected by feedback to the hair dryer controller, an interference memory unit connected by feedback to the analysis and control unit, and a Wi-Fi signal transceiver unit, the input of which is connected to the microprocessor control device. , and the output is with the block of analysis and filtering. The technical result of the utility model is to increase the stability of the connection of the hair dryer to a Wi-Fi wireless network for remote control of its operation modes while maintaining the high efficiency of the operation of the hair dryer device as a whole and the operation of the Wi-Fi signal transceiver unit built into the hair dryer, in particular. 4 ill., 1 tab.

Description

Technical field

The utility model relates to hair care devices, in particular to devices for drying and styling hair, the operation of which can be controlled both manually and remotely using a Wi-Fi connection. In particular, an electric hair dryer can be controlled by airflow parameters such as temperature and/or speed, characterized by the possibility of remote control via a wireless network and the presence of an automatic temperature control function. The claimed device of an electric hair dryer with Wi-Fi control can be used in light industry in the production of such devices.

State of the art

There are known a number of technical solutions aimed at developing a device for drying and/or styling hair, which could be controlled remotely. Devices are also known, the parameters of the air flow, during which they are automatically adjusted. At the same time, the hair dryer is controlled using a wireless connection with a remote WI-FI router (modem).

Known design of the electric hair dryer CN 207532061 U1, published on 06/26/2018, selected as the closest analogue of the proposed utility model, which contains a body and a handle of the hair dryer, the handle of the hair dryer is installed on the lower part of the body of the hair dryer. In this case, the hair dryer includes a video camera and an indication mechanism, wherein the video camera mechanism is installed on the body of the hair dryer and the display mechanism is connected to the video camera mechanism. Known device hair dryer allows you to shoot the condition of the hair on the camera in real time when the user uses the hair dryer. In this case, communication is carried out via a wireless connection, such as WI-FI.

The known design of the prototype hair dryer has a significant drawback, which is the low stability of wireless Wi-Fi communication due to the fact that the hair dryer conversion module is not able to analyze interference that affects the operation of wireless Wi-Fi networks. As a result, the known design is due to intermittent or unstable operation of the wireless connection of the hair dryer to the Wi-Fi network. This makes remote control difficult, and sometimes, due to the lack of Wi-Fi connection, impossible.

Thus, the objective of this utility model is to create an electric hair dryer device with the ability to remotely control from an application using a Wi-Fi network and the function of automatically filtering the received Wi-Fi information signal from interference generated by devices surrounding the electric hair dryer at the time of use, to improve stability Wi-Fi connection and smooth operation of the remote control of the operation of the hair dryer.

The technical result of the claimed utility model is to increase the stability of the connection of the hair dryer to a Wi-Fi wireless network for remote control of its operation modes while maintaining the high efficiency of the operation of the hair dryer device as a whole and the operation of the Wi-Fi signal transceiver system built into the electric hair dryer, in particular.

Utility Model Disclosure

Just like in the closest analogue, the proposed electric hair dryer contains a body, a hair dryer handle, means for creating and heating an air flow, means for measuring the distance from the device outlet to the user's head, and control buttons on the body.

The difference between the claimed device of the hair dryer is the presence of a control unit for the operation of the hair dryer, which includes a microcontroller, a data transceiver unit via a wireless network, a device for creating and heating an air flow made in the form of an electric motor and a heating element. In this case, the microcontroller is connected in series with the microprocessor, which is part of the conversion module, which is configured to wirelessly communicate with a remote router, for example, a WI-FI router (modem).

In turn, the converting module of the hair dryer is made with the possibility of transmitting and filtering the Wi-Fi signal against the background of interference recorded by the transceiver unit.

The set goal, the technical result required and obtained by using the utility model, are achieved by the fact that the electric hair dryer with Wi-Fi control contains a body, a handle, control buttons on the body, as well as a control unit for the operation of the hair dryer, which includes a microcontroller connected to a means of creating and heating the air flow, a means for measuring the distance from the outlet of the device to the user's head and a manual control unit, while the microcontroller is connected to the conversion module of the hair dryer, which is configured to receive and filter the Wi-Fi signal against the background of interference recorded by the Wi-Fi signal transceiver unit , the input of which is connected to the control device of the microprocessor of the converting module, and the output to the analysis and filtering unit connected to the interference memory unit.

Brief description of the drawings

The essence of the utility model is illustrated by drawings.

In FIG. 1 shows a general view of an electric hair dryer with Wi-Fi control, which uses the following designations:

1 - hair dryer;

2 - body;

3 - handle;

4 - manual control buttons;

5 - distance sensor;

6 - front part of the body;

7 - back of the body;

8 - power cable.

In FIG. 2 shows a longitudinal section of a hair dryer, on which the following designations are used:

1 - hair dryer;

3 - handle;

4 - manual control buttons;

5 - distance sensor;

8 - power cable;

9 - outlet;

10 - heating element;

11 - hair dryer microcontroller;

12 - fan unit;

13 - converting module of the hair dryer;

14 - manual control unit.

The wide arrow shows the direction of air flow.

In FIG. 3 shows a block diagram of the proposed device, which uses the following notation:

5 - distance sensor;

10 - heating element;

11 - hair dryer microcontroller;

12 - fan unit;

13 - converting module of the hair dryer;

14 - manual control unit;

15 - hair dryer microprocessor;

16 - control device;

17 - analysis and filtering unit;

18 - interference memory block;

19 shows a block for transmitting and receiving data over a wireless network, for example, to an application installed on a portable device (not shown in the drawings).

In FIG. 4 shows a block diagram of the analysis of incoming signals by the microprocessor.

Implementation of the utility model

Modern electric hair dryers are characterized by the presence of several modes of operation, differing in temperature and speed of the generated air flow. In particular, household and professional models are known that allow these parameters to be adjusted separately. The temperature and air speed should be selected taking into account the color and type of hair - thick, sparse, thin, curly, long or short. Regular use of an inappropriate drying/styling regimen, such as drying at maximum temperature and air speed, can lead to thinning, dryness and brittle hair, a rapid loss of pigment brightness (if the hair is dyed), as well as overdrying of the scalp, which, in turn, turn, leads to disruption of the sebaceous glands and rapid contamination of the hair. At the same time, the selection of the optimal mode can cause difficulties for users, since it requires the study of a significant amount of information and taking into account a large number of factors.

The proposed technical solution allows you to quickly select the optimal values of the air flow parameters, taking into account the individual characteristics of the hair of a particular user, without the need to study a large amount of information: the user just needs to set the type and color of the hair in the application and start the "smart" drying mode - the hair dryer will independently adjust the temperature and speed of the air flow.

Since the heating of the hair and scalp is determined not only by the temperature of the generated air flow, but also by the distance at which the hair dryer is removed from the user's head, a distance sensor is included in the design of the hair dryer, which measures the distance between the user's head and the hair dryer outlet. This distance can change many times during the drying or styling process, so the sensor measures in real time throughout the entire blow-dryer session. The signals from the sensor are processed by the microcontroller, which also receives and processes data on the type and color of the hair entered by the user, and is used to adjust the temperature and airflow rate during the use of the hair dryer, which avoids overdrying the scalp, as well as overheating the hair and damaging its structure. .

At the same time, in order to ensure stable and correct operation of the hair dryer, the specified information must be received and correctly processed by the conversion module of the hair dryer.

The hair dryer assumes the possibility of separate regulation of the speed and temperature of the air flow using two keys on its body. In FIG. 1 and 2 show control buttons 4, each of which allows you to switch between three modes: "low", "high" and "smart" adjustment mode. "Smart" temperature adjustment mode and "smart" airflow rate control mode can be activated both simultaneously and separately. In particular, the user can use the “smart” temperature control mode and one of the standard flow rates (low or high) or, on the contrary, use automatic adjustment of the blowing speed and the standard air temperature value (low or high), depending on the required air parameters. flow or personal preference. When smart modes are launched without transmitting data from the application, the air speed and temperature are adjusted by measuring the distance to the user’s head and the data on the user’s hair type stored in the device’s memory, and the initial value of these parameters is selected as the average between their values in “low ” and “high” modes.

To understand the essence of the claimed utility model, a detailed description of the drawings is presented below.

As shown in FIG. 1 electric hair dryer contains a body 2, a handle 3, has two control buttons 4 and a distance sensor 5. Power is supplied by a power cord 8.

In FIG. 2 shows a longitudinal section of a hair dryer. As follows from the drawing, the hair dryer contains a heating element 10 built into the body 2 of the hair dryer, a microcontroller of the hair dryer 11, which converts the hair dryer module 13 to control it using a Wi-Fi wireless network. The fan unit 12 is built into the handle 3 of the hair dryer. To create an air flow, the fan located in the fan unit is driven by an electric motor (not shown in the drawings). As an electric motor, both DC collector motors (DC - Direct Current), and AC collector motors (AC - Alternating Current) or a brushless DC motor (BLCD - BrushLess DC electric) can be used, depending on the modification of the hair dryer and its purpose (household hair dryer or professional hair dryer).

The device is powered by a standard AC power supply with a voltage of 230 V and a frequency of 50 Hz.

As the distance sensor 5 in the drawings, an optical sensor is shown, the direction of propagation of the light beam of which is used to determine the distance to the object. Sensors of this type emit directional radiation and register the beam reflected from the object. The distance is calculated by the microcontroller 11 based on the measured beam transit time.

As you know, in wireless networks, in particular in a Wi-Fi network, radio waves are used as a signal propagation medium, and the operation of devices and data transmission in the network occurs without the use of cable connections. In this regard, the operation of wireless networks is affected by a greater amount of various kinds of interference. In turn, Wi-Fi devices are subject to even small interference from other devices, including those operating in the same frequency range.

Wireless Wi-Fi networks use two frequency bands - 2.4 and 5 GHz. 802.11b/g wireless networks operate in the 2.4 GHz band, 802.11a networks operate in the 5 GHz band, and 802.11n networks can operate in both the 2.4 GHz and 5 GHz bands.

Bluetooth devices, wireless keyboards, and mice also operate in the 2.4 GHz frequency band and, therefore, may affect the operation of the access point and other Wi-Fi devices.

At the same time, Wi-Fi wireless devices have a limited range. For example, a home router with an 802.11b/g Wi-Fi access point has a range of up to 60 m indoors and up to 400 m outdoors.

Indoors, the range of a wireless access point may be limited to a few tens of meters depending on the configuration of the rooms, the presence of solid walls and their number, as well as other obstacles.

At the same time, obstacles such as walls, ceilings, furniture, metal doors, etc. located between Wi-Fi devices may partially or significantly reflect/absorb radio signals, resulting in partial or complete signal loss. At the same time, the presence of solid walls, including concrete and reinforcement, sheet metal, plaster on the walls, steel frames, etc. also affects the quality of the radio signal and can significantly degrade the performance of the conversion module of any Wi-Fi device, including an electric hair dryer.

Indoors, mirrors and tinted windows can also cause radio interference. Even the human body attenuates the signal by about 3 dB.

Table 1 shows the loss of Wi-Fi signal efficiency when passing through various obstacles that are present in the premises. The data are given for a network operating in the 2.4 GHz frequency band.

In addition, the operation of the Wi-Fi device and the deterioration of the Wi-Fi connection quality are also affected by various household appliances operating in the Wi-Fi network coverage area.

For example, microwave ovens weaken the Wi-Fi signal strength, as they usually also operate in the 2.4 GHz band. In addition, baby monitors are also devices operating in the 2.4 GHz band, which creates interference and degrades the quality of Wi-Fi communications. Wi-Fi connectivity is also affected by CRT monitors, electric motors, wireless speakers operating at 2.4 or 5 GHz, some sources of electrical voltage such as electrical wiring, cables with insufficient shielding, and coaxial cables. and connectors used with some types of satellite dishes, external monitors and LCD screens operating at 2.4 GHz, wireless cameras, and other Wi-Fi devices within range of the Wi-Fi network.

Thus, various devices can interfere with the registration and transmission of signals over a Wi-Fi network. As noted above, these devices may include communications and/or electronic devices, including both wired and wireless devices (e.g., microwave ovens, printers, computers, tablets, phones, cordless phones, network nodes, network devices, set-top boxes, televisions, radios, communication devices), terminals, power lines, transmitters, various communication protocols used by devices, and the like.

However, in the proposed solution, it was decided to use filtering based on data about these interferences. It is proposed to use these interferences to create and/or generate interference patterns for each interference source.

Common types of interference can be divided into mutual or co-channel interference CCI (co-channel interference), inter-carrier interference ICI (inter-carrier interference) due to signal modulation, electromagnetic interference EMI (electromagnetic interference) due to radiation from an external source . In turn, the interference data can be used to create and/or generate interference patterns for each interferer. The interference patterns may be displayed on an interference map, which may illustrate spatial relationships of interference patterns, interference sources, non-radiating objects, combinations thereof, and the like. The generated interference interference map can be used to evaluate an unknown and/or new source of interference, such as a cordless phone, to determine how it might affect the Wi-Fi transceiver installed on the device, such as an electric hair dryer.

Thus, an electric hair dryer with Wi-Fi control is proposed, the design of which is made with the ability to form and save an interference pattern from each interference source in order to compare the interference pattern and remove all interference from interference sources and leave only the signal pattern corresponding to the signal Wi -Fi.

It should be reiterated that each interferer has its own unique interference pattern, and it is this data that can be used to create and/or generate an interference signature for each interferer. Meanwhile, information about the interferer can be included in the interference signature, such as operating frequency, signal strength, location, user information, and so on, to identify the interferer. To determine which interferer caused the interference pattern to change, the stored interference signatures can be compared with the interference data collected/acquired and the generated interference patterns.

When interference reduces the signal transmission rate, for example, the power level can be coordinated. You can also change the signal modulation to improve the signal-to-noise ratio between the desired Wi-Fi signal and the signal-to-interference (noise).

In addition, the network address of the interference source can be determined from the interference signature. For example, the network address may include an internet protocol address, a network address, a media access control (MAC) address, an internet address, and/or the like.

The implementation of the hair dryer conversion module is based on the use of a Wi-Fi receiver configured as a transceiver unit 19. At the same time, the transceiver unit 19 is configured to receive (for example, collect, collect and measure) signals from interference sources, of which the computing device of the microprocessor 15 converts module 13 can determine data on interference when changing signals by comparing the received signals with the existing base of reference signals stored in the interference memory block 18. This comparative analysis is carried out in the analysis and filtering unit 17 of the microprocessor hair dryer 15. In this case, the Wi-Fi receiver, made in the form of a transceiver unit 19 may have a plurality of receiver channels that are capable of measuring the relative direction of the signal with the highest transmission energy. For example, a wideband or full spectrum receiver in a cable modem, satellite TV, and cable TV can be configured to perform spectral analysis to measure the energy content, including signal carrier, signal harmonics, and/or signal intermodulation. Changes in the energy content can indicate interference and can be used to determine the source of the interference. For example, when the energy content is measured over time, spectrum analysis can indicate to the receiver whether the interferer is a frequency modulated signal or if it is a frequency hopping signal. For example, some types of signals, such as Bluetooth (802.15.1) and Zigbee (802.15.4), use frequency hopping or spread spectrum techniques that can be easily detected. In another example, wireless and cellular technologies such as Digital Enhanced Wireless Communication (DECT) and Code Division Multiple Access (CDMA) may have well-defined bandwidth.

Also, the hair dryer conversion module 13 performs an energy content analysis in the time domain and can determine the pulse repetition frequency (PRF) of the interferer. Time domain energy content analysis to determine PRF can be used in situations where signal analysis results in more than one type of interferer. In one aspect, instead of signal analysis, time domain analysis can be used to determine the PRF of the interferer.

As an example of using PRF to determine the source of interference, consider microwave ovens. Microwave ovens transmit either a continuous wave or long signal cycles lasting several seconds or more. However, if microwave oven signals are compared with the global system for mobile cellular transmitters (GSM), the latter have a relatively higher PRF compared to microwave ovens (approximately 216 Hz with an 8 Hz component). Based on the PRF, the computing device can determine if the interferer is a microwave or a GSM cellular transmitter.

Thus, the conversion module of the hair dryer 13, due to its design, can determine sources of interference, including sources that have documented characteristics (reference interference), can determine the type of radio frequency interference and the signal strength present in a particular location.

At the same time, at the stage of forming an interference pattern, it can be created and/or generated based on the received interference data. For example, an interference pattern may include one or more of the following: radio interference pattern, microwave interference pattern, combinations thereof, and the like. In addition, the interference pattern may contain a frequency spectrum associated with multiple interference sources. The interference pattern is stored in the interference memory block 18 and is subsequently used as reference signals of the computing device of the hair dryer microprocessor 15.

As shown in the block diagram in FIG. 3, the hair dryer device includes a hair dryer microcontroller unit 11, the first output of which is configured to be connected to the electrical network, and the second output to the heating element unit 10 located in the hair dryer body. The third output of the hair dryer microcontroller 11 is connected to the fan unit 12. connection to the manual control unit of the hair dryer 14 and the distance sensor 5. These units are included in the manual control unit of the hair dryer shown in the drawing of FIG. 3 dotted line.

In accordance with the proposed solution, the microcontroller of the hair dryer 11 is connected in series with the help of feedback to the microprocessor of the hair dryer 15, namely, to the control device 16 of the microprocessor 15. In turn, the microprocessor of the hair dryer 15, namely the output of the control device 16, is connected to the transceiver unit 19. The microprocessor 15 also includes an analysis and filtering unit 17, the first input of which is connected to the output of the transceiver unit 19, and the second input is connected by feedback to the interference memory unit 18. At the same time, the hair dryer microprocessor 15 with a built-in control device 16 and a computing analysis and filtering unit 17, together with interference memory block 18 and a transceiver unit 19 form a converting hair dryer module 13.

The specified converting module hair dryer 13 performs the main function is the reception, filtering, amplification and transmission to the microcontroller hair dryer 11 information Wi-Fi signal. At the same time, the proposed constructive implementation of the hair dryer 13 conversion module provides filtering of all received interference signals due to the formation of an interference pattern, which may contain one or more of the following elements: a radio interference pattern, a microwave interference pattern, and their combinations. In addition, the interference pattern may contain a frequency spectrum associated with multiple interference sources. The interference pattern is stored in the interference memory block 18 and is subsequently used as reference signals of the computing device of the hair dryer microprocessor 15, such as the analysis and filtering unit 17.

Thus, the information transmitted by the user via a Wi-Fi signal to the hair dryer will always be executed by the device of the hair dryer, regardless of how much the specified information Wi-Fi signal is affected by interference from external devices and / or obstacles.

The operation of the claimed device electric hair dryer is as follows.

When the electric hair dryer with Wi-Fi control is turned on for the first time, the area is scanned by turning on the transceiver unit 19. This activation can be done manually by pressing the corresponding button on the hair dryer body (for example, one of the buttons 4 shown in Fig. 1 and 2), or the LCD screen of the hair dryer (not shown in the drawings), which activates the manual control unit of the hair dryer 14 to transmit a signal to the microcontroller of the hair dryer 11 and further transfer the command to the transceiver unit 19 through the control device 16 of the microprocessor of the hair dryer 15. After scanning, the analysis of signals from all existing around dryer of interference sources using the analysis and filtering unit 17 with the recording of the obtained data on interference patterns in the memory of the interference memory unit 18. This step will ensure more efficient operation of the converting module of the hair dryer 13. Obviously, in a large space of a beauty salon, in which the Wi- Fi can easily pass tens of meters and in a small bathroom filled with various kinds of appliances, including a washing machine, dryer, etc., as well as having mirror surfaces and high humidity in the room, where the Wi-Fi signal will be reflected from the surfaces, absorbed and be influenced by electromagnetic radiation of signals from operating devices, the resulting interference pattern of interference will vary significantly.

The received interference signals are recorded in the interference memory 18 as additional reference interference signals. Thus, in the interference memory block 18 of the converting module of the hair dryer 13, an additional database is formed about the received interference patterns of signals from a variety of interference sources actually located around the hair dryer device and affecting the efficiency of Wi-Fi signal reception. At the same time, the interference memory block 18 contains stored data of reference signals of interference patterns of interference signals from documented interference sources, for example, signal types such as Bluetooth (802.15.1) and Zigbee (802.15.4), which use frequency hopping or extension methods. spectrum that can be easily detected. That is, additional data is stored in the interference memory block 18 - this is data on the interference patterns of interference generated from interference sources around the hair dryer. Thus, when analyzing the signal in the analysis and filtering unit 17, their classification will be greatly simplified by comparing with the signals available in the memory unit 18 of all the reference signals of the interference patterns of the signals present in it.

As a result, an information Wi-Fi control signal is received from the analysis and filtering unit 17 to the control device 16 of the microprocessor 15, which is then transmitted to the microcontroller of the hair dryer 11.

In addition, the hair dryer device can give feedback to the user through the hair dryer conversion module 13, for example, about the need to change the hair dryer mode (for example, in the case of hair styling with styling), or about the device overheating (in the case of continuous operation of the hair dryer for more than the set time), or about that the hair dryer device has detected an unknown hair type (in the case when a new user with weak brittle hair begins to dry hair), etc. In this case, the data from the microcontroller 11 gets to the control device 16 of the microprocessor 15, then transferred to the transceiver unit 19, which emits an information signal to the remote user device.

Let's take a specific example.

The signal carrying information about the request for the time required for styling hair using styling products (the user generates a remote request for how long it will take to style his hair) comes from any of the devices that support the transmission and reception of a Wi-Fi signal to Wi -Fi router (modem), where it is processed and then received by the hair dryer conversion module 13. The transceiver unit 19 of the conversion module 13 transmits the entire spectrum of signals received from the surrounding space to the microprocessor 15 in the analysis and filtering unit 17, then at the request of the analysis and filtering unit 17, information about the interference pattern of reference interference is transmitted from the memory of the interference memory block 18. The analysis and filtering unit 17 operates by means of the control shown in FIG. 4 algorithms. In particular, the initially received signal is analyzed in order to detect the presence of a “new” signal that is not in the database of the interference memory block 18. In the case of a positive decision about the presence of a “new” interference signal, the analysis and filtering block 17 transmits information about the interference pattern new interference into the interference memory 18 and there this signal is stored as an additional reference signal. If the received signal is available in the saved database of reference signals, the received signal is compared with the signals from the interference memory block 18. Next, it is analyzed whether there is an information Wi-Fi signal we need among the signals, filtering is carried out and all interference signals are removed, and then only the Wi-Fi information signal is transmitted.

The converted signal comes from the control device 16 of the microprocessor of the hair dryer 15 to the microcontroller of the hair dryer 11. The microcontroller 11 connects to the heating element 10, analyzes the last saved information about the state of the user's hair, converts the information received into an electrical signal that is transmitted from the microcontroller of the hair dryer 11 through the control device 16 hair dryer microprocessor 15 to the transceiver unit 19 and further to the Wi-Fi router, and then to one of the user's command devices (for example, a computer, phone, tablet, smart speaker, laptop).

In turn, the user, having received information about the required time for styling, forms a task to prepare the hair dryer for work in 5 minutes. The hair dryer remotely receives a command to start working after 5 minutes, which is generated by the user remotely using any device that supports a Wi-Fi connection, for example, a computer, or tablet, or mobile phone, smart speaker, etc. The signal carrying information about the required mode of operation (styling with styling of the user's hair), set by the user, comes from any of the indicated devices to the Wi-Fi router (modem), where it is processed and then received by the conversion module 13 of the hair dryer. The transceiver unit 19 of the converting module 13 transmits the entire spectrum of signals received from the surrounding space to the microprocessor 15 to the analysis and filtering unit 17, then, at the request of the analysis and filtering unit 17, information about the interference pattern of the reference interference is transmitted from the memory of the interference memory unit 18. The analysis and filtering unit 17 operates by means of the control shown in FIG. 4 algorithms.

The converted signal comes from the control device 9 of the microprocessor of the hair dryer 15 to the microcontroller of the hair dryer 11. The microcontroller 11 connects the heating element 11 to the electrical network. The temperature and speed mode of operation is controlled by a distance sensor 5, which continuously or at the request of the microcontroller 11 scans the distance to the user's head and hair and transmits information to the microcontroller 11. The distance sensor can be made in the form of an optical sensor, the time of flight of the optical beam of which is converted into an electrical signal , which arrives at the microcontroller of the hair dryer 11, which compares the temperature regime and the blowing speed with the necessary operating mode for a user with a specific type of hair, information about which is available in the memory of the microcontroller and, as the condition of the hair is determined as “good”, turns off the heating element 10. At the same time, the a remote command device (for example, a computer, tablet, mobile phone, smart speaker, etc.) transmits an information signal that it is recommended to stop styling in order to avoid overdrying the hair. The specified information signal is transmitted from the microcontroller of the hair dryer 11 through the microprocessor 15, namely the control device 16 and the transceiver unit 19, then to the Wi-Fi router, and then to one of the above user command devices. In turn, after the transmission of the information signal, the microcontroller of the hair dryer 11 disconnects the heating element 10 from the electrical network.

Thus, the user is informed both that the hair dryer is ready for use and that the drying or styling process has been completed in order to avoid damage to the hair. In this case, the command from the user's device will be executed even if the Wi-Fi signal is weakened, since the proposed solution will provide a stable Wi-Fi connection regardless of the location of the Wi-Fi router (far from the location of the hair dryer, for example, in another room) and noise arising from the operation of various devices (smart TV, microwave ovens, game consoles, washing machine, etc.).

As follows from all of the above, due to signal processing in the converting module of the hair dryer 13, the quality of the Wi-Fi connection is improved, which in turn improves the stability of the hair dryer's connection to the Wi-Fi wireless network for remote control of its operating modes.

The IQ HOME app can be used as a remote control application.

Reception and transmission of data between a portable device with an installed application and a device that receives commands (a transceiver unit in the hair dryer body) is carried out using such a type of communication / connection as Wi-Fi.

Thus, the proposed electric hair dryer with Wi-Fi control, which includes the above elements, provides remote control from the application using a Wi-Fi network due to the effective function of automatically filtering the received Wi-Fi information signal from interference generated by devices and obstacles surrounding the electric hair dryer, which increases the stability of the Wi-Fi connection and the smooth operation of the remote control of the hair dryer.

As follows from the description of possible implementations of the claimed utility model, the proposed electric hair dryer with remote control functions achieves the claimed technical result, which consists in increasing the stability of connecting the hair dryer to a Wi-Fi wireless network for remote control of its operating modes while maintaining the high efficiency of the hair dryer device as a whole. and the operation of the Wi-Fi signal transceiver unit built into the hair dryer, in particular.

Considering the novelty of the set of essential features, the technical solution of the task, the materiality of all general and particular features of the utility model, proven in the section "Prior Art" and "Disclosure of the utility model"; the technical feasibility and industrial applicability of the proposed device proved in the section "Implementation and industrial implementation of the utility model"; solution of the tasks and confident achievement of the required technical result in the implementation and use of the utility model, in our opinion, the claimed device satisfies all the requirements for patentability for utility models.

The analysis also shows that all general and particular features of the utility model are essential, since each of them is necessary, and together they are not only sufficient to achieve the purpose of the utility model, but also allow it to be implemented industrially.

Claims (1)

An electric hair dryer with Wi-Fi control contains a body, a handle, control buttons on the body, as well as a control unit for the operation of the hair dryer, which includes a microcontroller connected to a means for creating and heating an air flow, a means for measuring the distance from the outlet of the device to the user's head, and a manual control, while the microcontroller is connected to the conversion module of the hair dryer, which is configured to receive and filter the Wi-Fi signal against the background of interference recorded by the Wi-Fi signal transceiver unit, the input of which is connected to the control device of the microprocessor of the conversion module, and the output to the analysis unit and filtering connected to the interference memory block.

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