System for household electric appliances and its functioning method

IPC classes for russian patent System for household electric appliances and its functioning method (RU 2484522):

H04L12/24 - Arrangements for maintenance or administration

G06F11/22 - Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing (testing of digital circuits, e.g. of separate computer components, G01R0031317000)

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FIELD: electrical engineering.

SUBSTANCE: system contains a selector device designed so that to enable the input command receipt for malfunction diagnostics fulfilment; a memory device designed so that to enable storage of product information with regard to the household electric appliance for malfunction diagnostics purposes; a controller designed so that to enable upload of product information stored in the memory device as well as for generation and output of a control signal including product information and for control of the conversion device; a conversion device designed so that to enable the control signal conversion into an acoustic signal and such acoustic signal output; and an input device designed so that to enable output of a sonic signal corresponding to the acoustic signal.

EFFECT: enhanced stability of signal conversion and enhanced accuracy of information transfer using output signal.

17 cl, 12 dwg

The technical field to which the invention relates.

The present invention relates to a system for household appliances and the way of its functioning and, in particular, to a system for household appliances and the way of its functioning, which can check the status of the appliance and to provide a convenient after-sales service by analyzing the product information contained in the sound signal, based on a sound signal outputted from the appliance.

The level of technology

In the electrical household appliance stores settings for operations, information generated in the process, information about the fault, etc. during execution of the predetermined operation. In the event of a malfunction household appliance allows the user to determine the status of the appliance by issuing a predetermined warning signal. Along with simple user notification about the completion of work or error occurs, the specified household appliance provides detailed information about the fault through the inclusion in it of the output medium, such as a renderer, lamp, etc.

When the household appliance of any anomaly, the user must use after-sales service is their contact with the service center or the like, to consult about the state of the household appliance or ask service personnel to inspect the faulty household appliance.

Often, however, information about the fault is displayed without reason or displayed in the form of coded values with which the user is not familiar, making it difficult to troubleshoot appliance. Further, if the user has to contact the service center, it will be difficult to accurately explain what is the status of the domestic appliance. Consequently, if service personnel arrived at the house, most likely you will need a lot of time and considerable expenses for repair of household electrical appliance, because the user correctly explained the status of your appliance. For example, if parts required for repair of household electrical appliance, not pre-prepared, the employee service center will have to come again, it will take a lot of time.

To solve this problem, you can provide a connection through a predetermined communication tool between the household appliance and the server of the service center, but it will lead to the need for a network connection.

In addition, in the course of technological progress, developed a method of remote diagnostics and the aleesa information about malfunction or the like based on the use of the telephone network.

In the application number EP 0510519 discovered a way to transmit information about the fault appliance to a service center through a modem connected to a household appliance, based on the use of the telephone network. In this case, there arises a problem in that a modem to a household appliance must be connected. In particular, such appliances as washing machine, usually installed outside the premises, and then you need to take into account the restriction in place to connect the washer to the telephone network.

In the registered patent # US 5987105 discovered a way of converting the information about the malfunction of the appliance into a sound signal audible frequency band and the transmission sound signal to the service center or the like, During the procedure of the transmission of the audio signal at the receiver on the handset after the conversion information about the fault appliance into a sound signal audible frequency band can receive interference from the environment. Also during the procedure, the transmission of audio signal through the telephone network may be data loss, due to the characteristics of the telephone network.

In the above-mentioned patent US 5987105 duration of one symbol representing one bit, the cat is which is the information unit, should be 30 MS, and to prevent data loss and transmission of accurate information about the product, for each bit uses a separate frequency.

To minimize the recurrence intervals of the same frequency, you must use a number of frequencies corresponding to the number of data elements. To represent the seven data elements, you must use seven different frequencies. Hence, there is the problem of using inflated number of frequencies.

In addition, to solve problems related to the use of multiple frequencies should be increased the duration of the symbol, which will reduce the number of frequencies used. But this will lead to the fact that the standard duration of the symbol component 30 MS, will increase to 100 or more milliseconds. In this case, the amount of data to be transmitted, will also increase due to the long duration of the symbol, and thus also will increase transmission time.

Therefore, there is a need for an alternative approach, in which information about the product appears to be a smaller number of frequencies, decreases the total amount and the time of transmission through the use of a shortened duration of the symbol and result in a more accurate representation of the shortened duration of the symbol.

The invention

Technical problem

In order for the present invention is the provision of a system for household appliances and the way of its functioning in the household appliance and system for household appliances for converting the control signal, includes product information in the acoustic signal and output to the outside of the sound corresponding to the acoustic signal, which will help to increase the efficiency of use of frequencies by reducing the number of frequencies used for signal conversion, to reduce the overall volume and the time of transmission by reducing the duration of a symbol, which is a unit of information, and to improve the accuracy and efficiency of diagnosing the state of the household appliance using a sound signal by preventing noise or errors that occur during the conversion of the acoustic signal.

Technical solution

Accordingly, according to the present invention is a system for household appliances, which transmits information about the household appliance to the control unit through a wired/wireless communication network in order to diagnose malfunctions, and household appliance includes: a device for receiving commands entered to allow the user to perform the diagnosis of the malfunction; the controller is equipped with a storage device for storing information about the household appliance is to diagnose the fault, download the product information stored in a storage device and output the control signal is, when the device is selected diagnosing malfunctions; conversion device that converts the control signal, which may include product information in the acoustic signal, and outputs at least one acoustic signal; and an output device for receiving entered acoustic signal and output a corresponding sound signal, and a controller included in the predictive diagnosis after receiving the command from the device selection on the formation of product information in the form of a combination of many characters that have a specified duration, generates the control signal by setting a pause between characters and provides control so that the acoustic signal is output from the output device.

In addition, according to the present invention is a system for household appliances, which transmits information about the household appliance to the control unit through a wired/wireless communication network in order to diagnose malfunctions, and household appliance includes: a device for receiving commands entered to allow the user to perform the diagnosis of the malfunction; the controller is equipped with a storage device for storing information about the household appliance for which diagnostirovanie fault, download the product information stored in the storage device, and output the control signal when the device is selected diagnosing malfunctions; conversion device for generating an acoustic signal in response to the control signal of the controller; and an output device for receiving entered acoustic signal and output a corresponding sound signal, and the controller generates the control signal by setting a 1-bit, which is the basic unit in which information about the product has a predetermined value, in the form of a single character, and setting this length of character to the sound signal was transmitted at a transmission rate of greater than 20, and when the frequency of occurrence of errors less than the frequency of occurrence of errors, by which 1216 bits you receive 30 errors.

In addition, according to the present invention is provided a method of operation of the system for household appliances, in the output signal for the system for household appliances, and the method includes the steps in which: keep information about the product, containing information on the operation and the information about the malfunction of the appliance; activate product information for installation of the base unit of data in the product information in a single symbol and gene is irout control signal by setting a pause between characters, when a command is entered that allows household appliance to log in predictive diagnostics; and convert the control signal into an acoustic signal of a predetermined frequency band and output the acoustic signal in the form of a predetermined audio signal.

Advantageous effects of invention

As configured the system for household appliances and the way of its functioning in accordance with the present invention during the interval in which the data value changes of the conversion process of product information in the audio signal, converting the signal does not occur, preventing the occurrence of noise or errors generated during the conversion of the signal, and allows a stable signal conversion and accurate output the sound signal that facilitates the transfer of information through sound and, therefore, makes it convenient to use after-sales service by checking and diagnosing the state of the household appliance in the system through the communication network. In addition, due to the reduction in the duration of the symbol when using a smaller number of frequencies information about the fault and status information can be displayed at high speed even if the device in the water with a narrow band of frequencies, therefore can be reduced transmission time.

Brief description of drawings

The above and other objectives and features of the present invention will become more apparent from the following description of preferred options together with the accompanying drawings, in which:

figure 1 - diagram of the system for household appliances, performing the Laundry, according to the variant of the present invention;

figure 2 - block diagram of the system for household appliances of the type washing machine according to a variant of the present invention;

figure 3 - illustration of a waveform during the conversion signal appliance type washing machine according to a variant of the present invention;

figure 4 - illustration of converting the control signal into an acoustic signal in a domestic appliance, shown in figure 3;

figure 5 is an illustration of the waveform converting the control signal into an acoustic signal without a pause in the work of the appliance shown in figure 4;

6 is an illustration of the waveform converting the control signal into an acoustic signal using a pause in the household appliance according to figure 4;

7 is an illustration of the setup time consuming character when converting the control input acoustic signal in the domestic appliance according to figure 3;

Fig - illustrats the I relationship between the transmission rate and the frequency of occurrence of errors when you change the duration of a symbol in the household appliance, shown in Fig.7;

Fig.9 is a block diagram of the output signal to the electrical household appliance according to one exemplary variant of the present invention; and

figure 10 is a block diagram of a method of signal conversion for the electrical household appliance according to one exemplary variant of the present invention.

The best option of carrying out the invention

Next, with reference to the accompanying drawings is described in detail exemplary variant of the present invention.

Figure 1 shows the diagram of the system for household appliances, performing the Laundry, according to one variant of the invention. Refer to figure 1, where the system for household appliances configured in such a way that when displaying information about the operation of the household appliance in the form of a sound signal from the home appliance 1 in the house, a sound signal containing information about the product, through the telephone network is transmitted to the service center 90 to diagnose the presence or absence of a fault in a domestic appliance.

Household appliance 1 is provided with a device 40 display to display predetermined data and the device 70 output serving as an output sound signal for transmitting information about the operational status, fault, etc. appliance 1 (S1).

The device 40 display in the home the second electrical device is a light emitting element, such as light-emitting diode (LED), liquid crystal display (LCD) or organic electroluminescent (EL) device which visualizes and displays the status information or the information about the faulty appliance 1. The device 70 output reproduces and displays status information or information about a fault in acoustic form.

When failure during operation of the household appliance 1 notifies the user of occurrence of a fault through the device 40 display or device 70 of the output.

At this time, the user checks the information about the household appliance 1 is displayed on the device 40 display appliance and controls the operation of the electrical household appliance 1 or queries the service center 90 for repair (S2). The user communicates with the service center 90 to notify it of the occurrence of a malfunction and to ensure that service center has taken the necessary measures.

In the case where the user has to contact the service center 90 and performs the manipulation device 20 input provided to the household appliance 1, according to the command from the service center 90 (S3), sound signal containing information about the product. Household appliance 1 according to the present invention is not simply displays information about the product, but also pre is Brazul product information and displays it in the form of a predetermined audio signal.

At this time the user may request after-sales service for electrical household appliance 1 by transmitting a sound signal containing information about the household appliance, using a mobile terminal or handset (S2, S3), holding the telephone receiver 81 of a part of the electrical household appliance 1, which emits a sound, thus providing information about the model and symptoms of a faulty appliance 1.

After receiving a sound signal through the connected communication network service center 90 can identify the state of the household appliance 1, mentioned checking the audio signal (S5).

When the user connected to the service center 90 through the communication network, such as a telephone network, it checks the audio signal output from the electrical household appliance 1, in order to determine the state of the household appliance 1 (S5).

In accordance with the diagnostic service center 90 sends 93 employee service center at the home of the user to provide the service corresponding to the condition of the product and faulty appliance (S6). At this time, the diagnosis can be transferred (S6) to the terminal equipment 93 service center to tech 93 service center can repair household appliance is 1, or the result of the diagnosis can be provided to the user via a network of support. The diagnosis can be provided by e-mail to the user or transmitted to the mobile terminal user.

Thus, when the user is connected to a service center via a predetermined communication network, such as a telephone network, the system can determine the status of the appliance 1 according to the sound signal and to solve the problem, which allows us to offer quick service.

The following description is given on the example in which the household appliance 1 according to the present invention is a washing machine, but it should be noted that the present invention is not limited, and it applies to the whole field of the electrical household appliance 1, such as TV, air conditioning, dishwasher, refrigerator, rice cooker, microwave, etc.

Specified household appliance configured as described below to display product information in the form of a predetermined audio signal.

Figure 2 shows the block diagram of the system for household appliances of the type washing machine according to one variant of the present invention. Refer to figure 2, where the domestic appliance 1 includes a device 20 of the input, the measuring device 30, the device is 50 memory the device 60 conversion device 70 output and the controller 10 to control all operations of the appliance.

Household appliance may further comprise a device for excitation of the excitation control of the household appliance 1, so that the household appliance 1 can perform a predetermined operation in response to the control signal from the controller 10.

For example, in the case of washing machines excitation device for exciting the motor, resulting in a rotation of the washing tank or drum, and controls a motor so that a washing tank or drum, rotating, removing dirt from clothes. Also in response to the control signal from the controller 10, the excitation device controls the valve engaged in supplying or draining water.

The measuring device 30 may include at least one sensor (not shown) and measured data to determine the operational state of the appliance and to submit these data to the controller 10, when the household appliance 1 performs the work with the help of the device 40 excitation. For example, in a washing-machine measuring device 30 measures the water level at the time of its filing or discharge, and measures the temperature of water supplied, the rotation speed of the washing tank or drum, etc.

The device is in the 50 memory during the execution of the household appliance 1 a predetermined operation can save the information about the operation, for example, information about the operational status generated during operation, and the configuration data entered through the device 21 manipulation of the domestic appliance 1 can perform a predetermined operation, and can save the information about the malfunction, containing information about the cause of the malfunction or the place of infringement, in case of violation of normal operation of the electrical household appliance 1.

The device 50 memory may store control data to control the operation of the household appliance 1 and the data about faults that are used during the control operation of the household appliance.

At the same time, the device 50 memory may include all of the necessary tools for data storage, such as read-only memory (ROM)that stores control data for household appliances, electrically erasable programmable ROM (EEPROM) and a memory that stores the processed data. The storage device 51 is a storage means of the controller 10. The storage device 51 is included in the device 50 of memory.

The device 20 input can be a means for inputting a predetermined signal or data in the household appliance by the manipulation of the user, and the input device 20 can be used button, switch and sensor p is Nelson, moreover, the device 20 input may include a manipulation device 21 and the device 22 of the selection.

The device 22 may include at least one input tool and can provide access to the selection and input of predictive diagnostics.

When the selected access predictive diagnostics and entered this mode, the device 22 may choose to apply an output command signal to the controller 10 in order to display the information about the product in the form of a predetermined audio signal through the device 70 of the output.

In addition, when accessing the predictive diagnostic device 22 can select whether to enable or disable the device 70 conclusion. That is, when using the device 22 to select an input command output signal, information about the product appears in the form of a sound signal in response to the control action of the controller 10, and then the device 70 output mode output the sound signal.

Manipulative device 21 may receive the entered data, for example, about the progress of work and work settings, and to submit them to the controller 10.

The manipulative device 21 may receive the settings corresponding to the front-mounted sound. That is, a manipulation unit 21 accepts the settings for the led on the key way to output the sound signal and the volume of the output sound signal.

At the same time, the device 20 input, such as the device 22 selection and manipulation device 21 can be formed in the form of buttons, spherical switch, a touch pad (static pressure/static electricity), withouthard regulator, withouthard switch, mouse, disk switch, rotary switch, etc. herein are applicable to any device that generates a predetermined input through manipulation.

When the input from the device 22 selects the signal corresponding to the access to predictive diagnostics, the controller 10 can issue a control signal to activate the product information stored in the device 50 of the memory, and providing device 60 conversion to convert the control signal into an acoustic signal. Also, when the device 22 to select an input command output signal, the controller 10 controls the operation of the device 70 of the output.

In addition, the controller 10 may set a pause to the control signal. At the same time, the controller 10 may set the interval during which changes the value of data in the product information.

Here, as described above, the product information may include information about the operation that contains operational settings, operating conditions is about time, as well as information about malfunction due to loss of health. Product information is data consisting of a combination of 0 and 1, representing the digital signal which is read by the controller 10.

The controller 10 classifies the data mentioned product information, configures information about the product so that it contained specific data, parts product information on the data blocks of a given size and / or supplements the product information to generate a control signal of a specified standard, and then supplies it to the device 60 conversion.

Also, if one symbol represents one bit of data, the controller 10 may provide a pause between characters and to generate the control signal.

At the same time, the controller 10 may set a pause corresponding to the duration of a symbol, which is a unit of time, during which information about the product has a single data value. For example, the controller 10 may set a pause, not exceeding 20% of the duration of the symbol.

Here pause is intended to prevent the phenomenon of reverberation, which data bits of the previous character time interval affects next character time interval during the presentation of new data bits, one time when the symbol interval ended, and the next time interval has begun, the principle of charging and discharging capacitors, as shown in figure 3 and 4, described below.

The controller 10 may set the interval during which the data value in the product information changes from 0 to 1 or from 1 to 0, as a pause, and to generate the control signal.

The device 60 conversion may convert the control signal containing information about the product, the acoustic signal to output the sound signal. Here, the device 60 conversion may convert the control signal, which digital signal into an analog signal to a predetermined frequency band, that is, to convert the control signal into an acoustic signal by using the conversion signal of one of the following methods of modulation: frequency-shift keying, amplitude manipulation or phase manipulation.

In the case of using the method of frequency-shift keying one of her examples is binary frequency shift keying (hereinafter BFSK). When using this method, if the value of the data in the product information is 0, the product information can be modulated on the signal having the first frequency, and if the data value is 1, the product information can be modulated on the signal having the second frequency. For example, if the value data is 0, the information about the product m which may be modulated on the signal, has a frequency of about 2.5 kHz, and if the data value is 1, the product information may be modulated at a frequency of about 2.9 kHz.

In the case of using the amplitude method of manipulating product information can be modulated on the signal having the frequency of about 2.5 kHz. In particular, if the data value in the information about the product is 0, the product information can be modulated on the signal having the frequency of about 2.5 kHz with amplitude equal to 1 and if the value of the data in the product information is 1, the product information can be modulated on the signal having the frequency of about 2.5 kHz with an amplitude equal to 2.

The device 60 conversion can suspend the conversion signal on the interval during which the set pause. That is, when converting the control signal into an acoustic signal by means of pulse-width modulation (PWM) device 60 conversion temporarily stops converting the frequency of the signal during the pause time by disabling the resonance frequency for modulation on the interval where there is a pause. The device 60 conversion to convert the product information into a signal of a predetermined frequency band according to the above-described methods and output acoustic signal by combining the respective converted signals.

cysticerci signal represents data in which with the help of the device 60 conversion is converted control signal containing information about the product, and this signal is intended for the actuation device 70 output and output a predetermined sound signal to the device 70 of the output.

The device 70 output is switched on and off control command from the controller 10, receives the acoustic signal generated by the device 60 conversion, and outputs a pre-defined audio signal. At the same time as the device 70 output can be used a means to output the sound signal, such as a speaker and a buzzer.

The device 70 conclusion can interrupt your work at the end of the output after it has issued the acoustic signal in the form of a predetermined audio signal. If the device 22 to select an input command output signal, the device 70 conclusion again is actuated to output a predetermined sound signal.

As the device 70 output can be used buzzer with a narrow band frequency or speaker with a broad band frequency. Although the speaker has a broad band of frequency, as well as greater volume, it is quite expensive and consumes a large plot of frequency bands, and the call has a narrow band frequency, is about is cheap and takes almost no band frequency. If the device 70 output does not generate a human voice or sound effects, requiring a wide bandwidth, it is advisable that the device 70 output contained a buzzer, not the speaker.

In the following description, the device 70 output may relate to the buzzer, which generates acoustic Segal, the corresponding status information or information about faulty appliance.

In response to the control signal from the controller 10 device 40 display information entered by the device 22 selection and manipulation unit 21, information about the operational status of the household appliance 1, as well as information about completing the appliance are displayed on the screen. Also, after household appliance has lost capacity, the screen displays information about the fault associated with the inoperable appliance.

At the same time, household appliance may in addition contain constantly burning or flashing signal lamp, a vibrating device, and so Further description is not given.

Configured household appliance 1 can output a pre-defined audio signal and, as will be described below, to transmit information about the household appliance 1 to the service center 90.

Service center 90 will win user interface 93, the decoder 91 and the device 92 diagnosis.

The user interface 93 may provide a pre-defined interface by which the Manager of the service center, the user and service personnel can check the results of the diagnosis and the course of its implementation, as well as to accept or display data.

The user interface 93 includes input means such as buttons, keys, touch panel and the switch, which manipulates the user, and displaying device for displaying information about the server's operation diagnosis and the results of the diagnosis. In addition, the device 270 I/o contains a connecting interface for external input devices and portable media memory.

When the manipulation tool enter the user interface 93 may provide the ability to output a predetermined sound signal of the electrical household appliance 1 user decoder 91 through a telephone network or a mobile network that allows the device 92 diagnosis to make a diagnosis.

When receiving an audio signal containing information about the household appliance through a telephone network or a mobile network decoder 91 may convert the audio signal and send it to the device 92 diagnosis. At the same time, the decode is 93 can receive the control signal, containing information about the product, by analog-to-digital conversion and frequency conversion of the entered audio signal from the appliance. The decoder 91 may receive a control signal containing information about the household appliance 1, and submit it to the device 92 diagnosis.

Preferably, the decoder 91, as a means of inverse transformation signal of the household appliance 1, the transformed data by the same system conversion signals, and a separate household appliance. The decoder 91 may convert the audio signal, which analog signal in a predetermined frequency band, into a digital signal by the inverse transform using one of: frequency-shift keying, amplitude manipulation or phase manipulation.

The device 92 diagnosis can diagnose the operating state of the household appliance 1 and the presence or absence of a fault by analyzing the control signal entered from the decoder 91. The device 92 diagnosis contains the diagnostic tool for the analysis of the control signal, and diagnosing a home appliance on the basis of analysis of information about the product contained in the control signal, and a diagnostic program contains diagnostic data.

In addition, when s is the phenomenon of fault diagnostic unit 92 may analyze the failure and output the result of the diagnosis to a decision or create a maintenance plan, in order to transmit it to the user interface 93.

The result of diagnosis performed by the diagnostic device 92 is displayed through the user interface 93, and then the service center 90 transmits the decision to eliminate the loss of the health appliance 1 to the user or sends to it staff.

The following describes an example of converting the product information into an acoustic signal device 60 conversion of the household appliance 1.

Figure 3 shows the shape of the signal during the signal conversion appliance type washing machine according to one variant of the present invention. Refer to figure 3, where the domestic appliance 1 can save the information about the product, containing at least one item of data consisting of a combination of 0 and 1, which is associated with information about the functioning and information about the fault. The following describes an example in which the device 60 conversion converts the signal according to the method BFSK.

Figure 3(a) shows the information about the product, and figure 3(b) - converted acoustic signal. To facilitate understanding of the invention, the signal is presented in the form of a pulse signal of a square shape.

As shown in figa, if product information is presented in the form 010 in the case of the AE conversion according to the method BFSK, the device 60 conversion converts the product information into a signal 121 having a frequency of 2.5 kHz, when the data value on the interval 111 of the first character is 0, and converts the product information into a signal 122 having a frequency of 2.9 kHz, when the data value on the interval 112 of the second character is 1.

Figure 4 shows the conversion of the control signal into an acoustic signal in a domestic appliance according to figure 3. As shown in figure 4 in the product information are intervals 101 and 102 within which change the data value for the interval 110 each character. The controller 10 may set a pause between intervals 101 and 102, within which there are measurements. Here, the controller 10 may set intervals 101 and 102 pauses so that they do not exceed more than 20% of the length 110 of the symbol.

The device 60 conversion converts, as shown in the above figure 3, the signal and stops the conversion signal by disabling the resonance frequency for frequency conversion on those intervals where you installed pauses 101 and 102.

This is due to the fact that since the possible appearance of two bands at intervals, during which the data value changes the procedure for conversion of a signal, can be added to the signal that is not required for an acoustic signal, or because the impact transformed the education of a signal of one frequency to a signal of another frequency may remain and continue even after specifically prescribed time interval in the process of changing data values. Therefore, changing the value of the data conversion signal is terminated.

Accordingly, information about the product is converted into a signal having a frequency of 2.5 kHz according to the value data to 0 during the first interval 131, the conversion signal is stopped during the second interval 132, when you pause 101, and information about the product is converted into a signal having a frequency of 2.9 kHz in accordance with a data value of 0 during the third interval 133.

After that, the conversion signal is terminated during the fourth interval 134, which establishes a pause 102, and information about the product is converted into a signal of 2.5 kHz in accordance with a data value of 0 during the fifth interval 135. Here after the fifth interval 135 pause is not set, because the data value does not change during the interval of the next character, and product information is converted into a signal having a frequency of 2.9 kHz during the sixth interval 136.

Used here, the frequency is only an example and is not limited to the above values, and can be changed to other values of frequencies in the frequency range audible by humans. Can also be used the other conversion methods.

Figure 5 shows the waveform when the household appliance, shown in figure 4, ramlawi signal is converted into an acoustic signal without interruption. During the conversion of the control signal 010 in the acoustic signal, as shown in the above figure 5(a), if the control signal is converted into an acoustic signal without a pause, the device 60 conversion according to the modulation PWM is generated resonant frequency 142 together with the signal 141 synchronization for synchronization during signal conversion. This enables the device 60 conversion converts the control signal into an acoustic signal by converting 143 frequency. Acoustic signal for convenience presents as a spectrum.

That is, when converting the control signal into an acoustic signal without pause, as shown above, the data bits in the interval of the first character converted signal 143 in figure 5 are shifted by the interval of the next character.

Then the signal will have the form as shown in figure 5(a).

This applies even in the case when the signal conversion is performed in the service center, and in that case, when the audio signal is output from the electrical household appliance 1 and affects next character due to the reverberation of the intervals at which change data bits. When the decoder 91 of the service center performs the inverse transform of the signal, this makes it difficult to correct the data, if the next character is exposed who is eastview reverb signal.

Figure 6 shows the waveform when the household appliance, shown in figure 4, the control signal is converted into acoustic Sigal using pause.

When converting signal by using a signal 151 synchronization and resonance frequency 152 device 60 conversion interrupts the generation of the resonance frequency according to the PWM modulation scheme for interval running pause, in accordance with the control signal from the controller 10.

As shown in Fig.6(a), disabling the resonance frequency in the interval pause at a given time interval symbol is generated converted acoustic signal. Here, for convenience, the acoustic signal is presented in the form of the spectrum.

If the control signal with a built-in pause is converted into an acoustic signal, as described above, this signal is converted and generated with a given duration, as shown in Fig.6(b).

The thus created an acoustic signal is sent to the device 70 conclusion and is output as a predetermined sound signal.

At the same time, the control signal and the symbol interval of the acoustic signal are defined as follows.

7 shows length setting character when converting the control signal into an acoustic signal in byevaporation in figure 3. Figure 7(a) shows the conceptual structure of the acoustic signal. Refer to Fig.7(a), where the acoustic signal applied to the device 70 output consists of two frequency components.

In the example where the device 70 buzzer output is used, assuming that the high frequency response of the buzzer is in the range from 2 to 5kHz kHz, an acoustic signal can be implemented in the form of a symbol consisting of a pulse of 2.6 kHz and pulse of 2.8 kHz.

In this approach, the acoustic signal generated by the device 60 conversion uses two frequency components of 2.6 kHz and 2.8 kHz, and 2 kHz corresponds to a logical '0', 2,8 kHz corresponds to a logical '1'.

If the high frequency response of the device 70 is located above or below the specified frequency, of course, that the frequency of the pulses forming the acoustic signal can also be above or below the specified frequency. However, the use of the bands of high and low frequencies, corresponding to logical '1' and logic '0' (in the opposite case, a logical '0' and logical '1') similarly applicable to the high frequency response of the buzzer, as the band frequency of the buzzer is very limited.

Here the symbol is one bit of data that corresponds to one logic level, and each shall ingol consists of a set of pulses, and the period of each pulse is determined according to two frequencies.

When the household appliance 1 outputs the acoustic signal into an audio signal and passes it through a telephone network or a mobile network, the data transfer speed varies depending on the size of the symbol. If the symbol duration is 30 MS, the data of 100 bytes will take about 30 seconds.

Thus, to increase the transfer speed, it is necessary to reduce the size of the symbol, that is, to reduce the number of pulses per symbol of each frequency signal.

As the number of pulses per symbol, wherein each symbol is reproduced in audible frequency band, playing time is reduced, and therefore, the device 70 conclusion may not be able to produce the correct sound. In addition, even if the audio signal is displayed, you may receive attenuation or distortion of the signal in the procedure of passing the audio signal through a telephone network or a mobile network, and it may be impossible to perform the service center 90 diagnose appliance using a sound signal, or it can lead to misdiagnosis.

The present invention essentially allows you to create and transfer the correct audio signal is Ala, as well as reducing the amount of data in the audio signal and the transmission speed by determining the number of pulses that form a single character.

In accordance with the size of the symbol and the symbol duration of the control signal supplied to the device 60 conversion from the controller 10 determines the number of pulses that must be contained in a single symbol in the acoustic signal output from the block 60 conversion. The ability data of the audio signal output from the device 70 output is determined in accordance with the number of pulses in the symbol.

Also determine the duration of the cycle of pulses per symbol in accordance with the frequency components used in the procedure of converting the control signal into an acoustic signal device 60 conversion.

Decreasing the duration of the symbol period, during which the character is reproduced in the device 70 output is greatly reduced, and this can create the above-mentioned problem of withdrawal and recognition of the audio signal. Otherwise, if the number of pulses per symbol and the symbol size increases, it facilitates the recognition, but the information about the product contained in the sound signal, will increase the transmission time of the sound signal output. Therefore, the size of the symbol, i.e. the duration of the si the ox is defined in the recognized range according to the characteristics of the tools: phone, the mobile terminal, the telephone network and a mobile network.

The cycle of the pulses forming the character is determined in accordance with the high frequency response, for example 2,6 kHz and 2.8 kHz output device. Thus, the number of pulses arranged in one and the same time interval, in the same way. At the same time, because the mobile terminal 5 receiving the acoustic signal band of audible frequencies, performs the discretization after receiving the acoustic signal, the symbol size cannot be reduced below a certain level.

The duration of the symbol set so that the number of pulses per symbol ranged from 8 to 32 in accordance with the acoustic signal converted in the device 60 conversion.

One character, consisting of 8-32 pulses, comes with several errors, and the maximum transmission rate can be achieved when the household appliance 1 transmits data to the mobile terminal 5 by means of an acoustic signal.

Figure 7(b) shows the detailed structure of the symbol acoustic signal converted in accordance with management.

If the cycle of the symbol is less than 7 MS, the mobile terminal may not be able to take the reproduced sound signal of a buzzer 72, and that means you will see error recognition. If the cycle is of excellent character who shrinks 24 MS, the transmission speed of the acoustic signal transmitted to the mobile terminal 5 from the household appliance 1 is reduced.

On Fig shows the relationship between transmission rate and the frequency of occurrence of errors when you change the duration of a symbol in a domestic appliance, shown in Fig.7. The transfer rate varies depending on the duration of the symbol of the control signal and the acoustic signal, and Fig shows the data rates for each duration of a symbol in accordance with the frequency of the 161 errors, less than 30 bits per 1216 bits. The horizontal axis represents the pulse width, the longitudinal axis represents the transmission speed and the curve reflecting the inversely proportional dependence, represents the frequency of occurrence of errors.

The longer the symbol, the greater the size of the data to be transmitted, and therefore, the transmission time changes, and also changes the frequency of occurrence of errors in accordance with the increase in transmission time.

In the case of testing through the use of the mobile terminal, if the duration of the symbol varies from 12 MS to 30 MS and satisfied the requirement for the frequency of occurrence of errors below the value 20/1216 bits, the transmission rate is changed as shown in Fig.

The transmission rate is maximum, i.e. about 24, at pulse duration of 15 MS, but the frequency of occurrence of errors is higher 30/1216 bit that does not meet the condition on the frequency of occurrence of errors.

You can see that the duration of symbol part 21 MS and 24 MS, the transmission rate is very low, ie 7 and 8, respectively.

Although the duration of symbol part 12 MS and 15 MS, the transmission speed is high, the frequency of occurrence of errors at pulse duration of 15 MS too high, as described above. Thus, it is preferable to set the pulse duration equal to 12 MS, which provides a high transmission rate.

The following describes the method for performing the conversion signal and the output signal by adjusting the durations of the characters and settings of the duration of pauses between characters.

Figure 9 presents the block diagram of the output signal of the electrical household appliance according to one exemplary variant of the present invention. The following description is based on the example of the washing machine.

Refer to Fig.9, where the washing machine performs washing according to the settings entered through the manipulation unit 21 (S410). Information about the settings for operation of the washing machine is stored as information about the operation.

If an error occurs during operation (S420), the controller 10 stores information about the error in the accordance with the disturbance in the work in the form of information about the fault. Here information about the failure and information about the operation is stored as the information about the product in the device 50 memory (S430).

The controller 10 displays the error through the device 40 display. When the device 22 is selected and accessed predictive diagnostics (S450), product information, containing information about the failure and information about the function is activated from the device 50 memory (S460), and creates information about the product as a control signal a predetermined standard.

The controller 10 supplies the generated control signal to the device 60 of the display, and delivers the control command to the device 70 output for the actuation device 70.

At the same time, the controller 10 may adjust the duration of a pause between intervals during which changes the value of the information about the product, i.e. the spacing between characters, and the device 60 conversion converts the control signal containing information about the product, the acoustic signal of predetermined frequency bands at a pre-determined time duration.

The device 70 output takes input acoustic signal, converted and extracted from the device 60 conversion, and outputs a pre-defined audio signal is l (S480).

Figure 10 shows the block diagram of a method of signal conversion appliance according to one exemplary variant of the present invention.

The following describes the procedure for generating a control signal containing information about the product, converting the control signal into an acoustic signal and output the sound signal when the washing machine displays a pre-defined audio signal, as described above. It should be noted that the following description will focus on the example in which the device 60 conversion converts the signal according to the frequency-shift keying method, but the invention is not limited to.

Refer to figure 10, where the activation of the product information from the device 50 memory (S510), the controller 10 may set the duration of the pause in accordance with a data value in the product information.

The controller 10 divides the information about the product on the specified dimensions of the data and / or supplements the product information and can adjust the duration of a pause between characters to generate the control signal a predetermined standard.

At the same time, the device 60 conversion converts the control signal into an acoustic signal of a predetermined frequency band. In the interval of the control signal, during which nestruev what is the duration of a pause (S520), the conversion signal is temporarily suspended (S530). After the interval pause signal conversion is resumed.

If the data value of the control signal is 0 (S540), the device 60 conversion converts the control signal into a signal of a first frequency (S550), and if the data value is 1 (S560), the device 60 conversion converts the control signal into a signal of a second frequency (S570). That is, if the value data is 0, the block 60 conversion converts the control signal into a signal having a frequency of 2.5 kHz, and when the data value is 1, the block 60 conversion converts the control signal into a signal having a frequency of 2.9 kHz. At the same time, in the interval of silence, during which changes the value of the data conversion signal is temporarily suspended.

At this time, the off signal of the resonance frequency generated according to the modulation PWM, to stop conversion of the signal during the pause. When the interval pause the resonance frequency is switched off, the symbol interval is generated acoustic signal, if the effect of the reverb signal, in accordance with the characteristics of the capacitor, as shown in the above figure 5 and 6.

Here during the signal conversion device 60 conversion converts the signal in accordance with the duration of the symbol, the cat heaven is a unit time, during which information about the product has a single data value.

By performing signal conditioning on intervals of a symbol, as described above (steps S520 in S570), when the signal conversion information about the product (S580), each signal is converted to intervals characters, appears in the form of an acoustic signal.

The device 70 receives output entered acoustic signal derived from the device 60 conversion, and outputs it, thereby outputting a predetermined sound signal (S590).

Accordingly, the user will hear a sound signal containing information about the product (washing machine), and this audio signal is transmitted to the service center through a connected network, as shown in the above figure 1 and 2.

Thus, when converting the product information, containing information about faults created during operation of the electrical household appliance, or information about the operation, such as information about the settings for household appliance, in a pre-defined audio signal and its output, the configuration of the appliance (and implemented in its output signal) according to the present invention provides suspension conversion signal during the interval pause by setting the interval of the pause between characters control signal, containing information about the product, resulting prevents noise and distortion of the signal in the interval during which changes the value data, and the possibility of effective signal processing.

In addition, when generating the control signal duration of a symbol set based on the number of pulses per symbol in the acoustic signal, which allows to provide a stable output and the audio signal, as well as to increase the transmission speed.

As described above, the system for household appliances and method of operation according to the present invention has been described with reference to illustrative drawings. However, the present invention is not limited to the options and drawings disclosed in the present description, and can be used by specialists in the art within the scope and essence of the present invention.

1. System for household appliances, which transmits the information about the product in respect of the appliance to the control unit through a wired/wireless communication network in order to diagnose malfunctions,
while household appliance contains:
device selection made with the possibility of reception of commands for performing diagnostics failure;
remember the e device made with the ability to store product information for household appliance for diagnosing malfunctions;
the controller is configured to download information about the product stored in the storage device, and output the control signal that includes information about the product;
conversion device, configured to convert the control signal into an acoustic signal and output at least one acoustic signal; and
output device configured to output the sound signal corresponding to the at least one acoustic signal, derived from the NAT device,
moreover, the controller is configured to input to the predictive diagnosis after receiving the command from the device selection, the formation of product information in the form of a combination of many characters that have a specified duration, generating a control signal by setting a pause in the interval during which changes the value of the data symbol, and control the conversion device, configured to convert the symbols into at least one acoustic signal and the pause character conversion in the interval during which configures the duration of a pause.

2. Sist the mA for appliances according to claim 1, in which the controller is arranged to set the pause time less than 20% of the duration of the symbol.

3. System for household appliances according to claim 1, in which the controller is configured to adjust the duration of the pause between the first symbol and the second symbol and executed with the ability to configure it so that the duration of the pause was a logical value different from the first character.

4. System for household appliances according to claim 1, in which the controller is configured to generate the control signal by setting a 1-bit, which is the basic unit, and information about the product has a predetermined data value in the form of a single character.

5. System for household appliances according to claim 4, in which the controller is arranged to set the length of character in the range from 7 MS to 24 MS.

6. System for household appliances according to claim 5, in which the controller is configured to set the length of the symbol component 12 MS.

7. System for household appliances according to claim 4, in which the controller is configured to set the length of the symbol, so each symbol acoustic signal contained from 8 to 32 pulses.

8. System for household appliances according to claim 4, in which the controller is implemented with the installation length is lnasty character so to provide the audio signal with a transmission speed greater 20, and error rate of less than the frequency of occurrence of errors, in which you receive 30 error 1216 bits.

9. System for household appliances according to claim 1, in which the conversion device configured to convert the control signal into an acoustic signal by generating a resonance frequency in accordance with pulse-width modulation, and the resonant frequency is turned off during the interval pause.

10. System for household appliances according to claim 1 or 9, in which during the conversion information about the product in accordance with frequency shift keying conversion device converts the product information into a signal having a first frequency if the logical value of the control signal is 0, converts the product information into a signal having a second frequency, if the logical value of the control signal is 1, and combines the converted signals of the first and second frequencies to output acoustic signal.

11. System for household appliances according to claim 1 or 9, in which during the conversion information about the product in accordance with the amplitude shift keying conversion device converts the product information into a signal having a first amplitude, if a Boolean is a value of the control signal is 0, converts the product information into a signal having a second amplitude, if the logical value of the control signal is 1, and combines the converted signals from the first and second amplitudes to output acoustic signal.

12. The method of functioning of the system for household appliances, comprising stages, which are:
keep information about the product, containing information on the operation and the information about the malfunction of the appliance;
activate product information for installation of the base unit of data in the product information in a single symbol and generate the control signal by setting a pause in the interval during which changes the value of the data symbol; and
convert the control signal into at least one acoustic signal of a predetermined frequency band, and output the audio signal corresponding to the at least one acoustic signal,
conversion control signal is halted during the interval in which configures the duration of a pause.

13. The method according to item 12, further comprising stages, which are:
take the extracted audio signal to a service center through a telephone network or a mobile network;
perform the inverse transform of the audio signal and extract information about household electricity is prebore from the audio input;
diagnose the state of the household appliance and diagnose the presence or absence of a fault by analyzing the product information.

14. The method according to item 12, in which the generation of the acoustic signal, the control signal transform by using one of:
frequency-shift keying, amplitude manipulation or phase manipulation.

15. The method according to item 12, optionally containing phase, which sets the duration of the symbol in the range from 7 MS to 24 MS.

16. The method according to clause 15, which sets the duration of the symbol equal to 12 MS.

17. The method according to item 12, optionally containing phase, which sets the duration of the symbol, so each symbol acoustic signal contained from 8 to 32 pulses.