KR20090054281A - Apparatus and method for providing service for pet - Google Patents

Abstract

The present invention relates to a service providing apparatus and method for pets. The present invention is a terminal corresponding to a preset number when receiving the pet's voice, analyzing the pet's emotional state using the received voice, and the pet's emotional state is a preset emotion state And performing at least one of a message transmission request or an origination request. According to the present invention, there is an advantage that a digital sound source optimized for the pet's emotional state can be provided to the owner in real time of the pet's emergency situation.

Pet, emotional state, analysis, stress index, digital sound source, message

Description

Apparatus and Method for providing service for pets

The present invention relates to an apparatus and method for providing a service for a pet, and more particularly, a service for a pet capable of reproducing a digital sound source according to a pet's emotional state and informing a host located at a remote place of an emergency of a pet. The present invention relates to a providing apparatus and a method.

 In recent years, as the nuclear family is progressing and the life is improved, more families are raising pets such as dogs and cats, and interest in pets is also increasing.

As a result, there are an increasing number of households with pets in each house, but family members often leave their homes alone due to the circumstances of their family members. You will see strange behavior.

Recently, in order to alleviate a pet's emotional state, music having an audible frequency band of a pet has been provided.

1 is a block diagram of a sound source player for a pet according to the prior art.

The prior art illustrated in FIG. 1 relates to Publication No. 2006-6614 (name of the invention: a digital audio player for listening to a pet). The sound source player according to the prior art includes a user input unit 110, a control unit 120, The sound source storage unit 130, the decoder 140, the frequency converter 150, and an output unit 160 are included.

The user input unit 110 generates an operation command signal such as a playback or a pause in response to a user operation, and outputs it to the controller 120. The sound source storage unit 130 is a memory for storing an MP3 sound source.

The decoding unit 140 performs a decoding function and a digital analog converter (DAC) function. The decoder 140 decodes an MP3 sound source to create an original digital sound source, and then makes a digital sound source into an analog sound source.

The frequency converter 150 converts the analog sound source output from the decoder 140 into an analog sound source of another frequency band and performs filtering so that only a desired frequency band remains in the converted analog frequency band. In this case, the frequency conversion is high pass filtering if the upconversion, and low pass filtering if the downconversion.

Since the MP3 sound source is a compression of an analog sound source in a human audible frequency band (20 Hz-20 KHz), the analog sound source output from the decoder 140 is in a frequency band of 20 Hz-20 KHz.

The sound source regenerator according to the prior art is to allow the pet to hear, in particular, because the pet provides an analog sound source that can be heard while being insensitive or inaudible, the frequency converter 150 is the audible frequency of the person Frequency-converts the analog sound source to another out of band band.

For example, in the case of pets, the dog's audio frequency ranges from 15 Hz to 50 kHz. In this case, the frequency converter 150 converts the frequency into a frequency band of 15Hz-20Hz, or frequency converts into a frequency band of 20KHz-50KHz.

In fact, as both ends of the audio frequency band, pets or humans are less sensitive to hearing and cannot hear unless they are especially bad. In consideration of this point, the related art can use the band as an audio frequency band for pets at both ends of the human audio frequency band, that is, around 20 Hz and around 20 KHz.

The output unit 160 amplifies the analog analog sound source output from the frequency converter 150, and outputs it to the speaker. The controller 120 controls each component for an operation corresponding to the output of the user input unit 110.

The sound source player according to the prior art as described above converts the frequency band of the digital sound source so that both humans and pets can listen to the digital sound source, but does not provide a function of providing a digital sound source corresponding to the emotional state of the pet. can not do it.

In the case of a person, the music to be listened to varies according to various emotional states, and similarly, even though a pet having various emotional states needs to provide music for each emotional state, the sound source player according to the related art has a current emotional state of the pet. There is a problem of unilaterally providing only digital sound sources that are irrelevant.

Furthermore, even if the same music needs to be provided with different music according to the type, sex, size, and propensity of the pet, the sound source player according to the prior art does not provide such a service.

In addition, if a pet is left alone at home, or if an emergency occurs, for example, if the same size fits into the gap in the household's furniture or causes seizures, It may be necessary.

It is necessary to inform the owner of the remote emergency situation to the pet, there is a problem that the conventional device for the pet does not provide such a function.

The present invention to solve the problems of the prior art as described above, to propose a service and device for providing a pet service that can provide a digital sound source corresponding to the emotional state of the pet.

Another object of the present invention is to provide an apparatus and method for providing a service for pets, which enables to determine an optimized digital sound source according to the type of pet.

Another object of the present invention is to provide an apparatus and method for providing a service for pets which can notify the owner immediately when the pet is in an emergency situation.

According to a preferred embodiment of the present invention to achieve the above object, a method for providing a pet service in a pet portable device, the method comprising the steps of: (a) receiving a voice of a pet; (b) analyzing the emotional state of the pet using the received voice; And (c) if the emotion state of the pet is a preset emotion state, performing at least one of a message transmission request or a transmission request to a terminal corresponding to a preset number. Is provided.

According to another aspect of the present invention, a method for providing a pet service in a pet portable device, comprising: (a) receiving a voice of a pet; (b) analyzing the emotional state of the pet using the received voice; And (c) reproducing the digital sound source according to a preset order after analyzing the emotional state of the pet, and searching for the digital sound source having the analyzed emotional state improvement effect by a feedback method. A method is provided.

According to another aspect of the present invention, a computer readable recording medium for performing the above method is provided.

According to another aspect of the present invention, a pet portable device, comprising: a voice receiver for receiving a voice of a pet; A memory for storing correlation information between a voice and an emotional state according to the characteristics of the pet; A state analyzer for analyzing a pet's emotional state by using the received voice with reference to the memory; And a communication unit configured to perform at least one of a message transmission request or a transmission request to a terminal corresponding to a preset number when the emotion state of the pet is a preset emotion state.

According to the present invention, there is an advantage that can immediately notify the owner of the emergency situation of the pet.

In addition, according to the present invention there is an advantage that can provide a digital sound source optimized for the emotional state of the pet.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

 Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the same reference numerals will be used for the same means regardless of the reference numerals in order to facilitate the overall understanding.

Figure 2 is a block diagram of a portable pet device according to an embodiment of the present invention.

As shown in FIG. 2, the portable pet device according to the present invention includes a voice receiver 200, a state analyzer 202, a communication unit 204, a sound source selection unit 206, a sound source playback unit 208, The memory 210 may include a display unit 212, a manual input unit 214, and a controller 216.

The portable device for pet according to the present invention can make a sound and can be applied without limitation to pets such as dogs and cats, which can analyze the sound.

The voice receiver 200 receives a pet's voice through a means such as a microphone. The voice receiver 200 may include an analog digital converter (ADC), and the ADC may convert an analog voice signal of a pet into a digital signal and output the digital signal.

The state analyzer 202 analyzes the pet's emotional state based on the received voice.

The analysis of the emotional state can be performed in various ways, for example, by the loudness (dB) of the voice, the number of times per unit time, the frequency, the amplitude, the interval between sounds, the pattern change, and the like.

To this end, the memory 210 according to the present invention may store in advance the correlation information of the emotional state for the various voices according to the type, gender, size, age, and propensity of the pet, and the state analyzer 202 stores the pet. When the animal's voice is received, the emotion state of the pet is determined by comparing the stored correlation information and the received voice information.

Preferably, the emotional state of the pet according to the present invention may be defined as a stress index, for example, the lower limit may be 0, the upper limit may be 100 and the emotional state of the pet may be quantified.

In this case, by dividing the stress index into 10 units can be defined as very dangerous in the case of 90 to 100, the risk in the case of 80 to 90, 70 to 80 is a little dangerous, 60 to 70 is normal.

However, without being limited thereto, the pet's emotional state may be defined in various ways such as loneliness, pain, play demand, hunger, mood, etc. In this case, the state analyzer 202 may analyze the received voice according to a preset algorithm. The pet is analyzed to determine which of the emotional states the pet is in.

According to an exemplary embodiment of the present invention, when the emotional state of the pet is a preset emotional state after the analysis of the emotional state, the communication unit 204 may perform a function of notifying the owner.

3 is a diagram illustrating a detailed configuration of a communication unit according to the present invention, wherein the communication unit according to the present invention includes a threshold determination unit 300, a message generator 302, a call request signal generator 304, and a transceiver 306. ) May be included.

The threshold determination unit 300 determines whether the analyzed emotional state of the pet is a preset emotional state.

When the emotional state of the pet is expressed as a stress index divided at predetermined intervals as described above, the threshold determination unit 300 may perform a process of determining whether the analyzed stress index exceeds a preset threshold. For example, the threshold may be set to 90 at which the emotional state is a starting index of “very dangerous,” and the threshold determining unit 300 determines whether the analyzed stress index exceeds 90.

However, the present invention is not limited thereto, and when the emotional state of the pet is defined as various emotions, and the threshold is set to an emotional state corresponding to “pain,” the threshold determination unit 300 determines whether the analyzed emotional state is “pain”. Will be judged.

If it is determined by the threshold determination unit 300 that the pet is in an emergency situation, the message generator 302 generates a message including a preset number and text.

Herein, the preset number may be a number for the mobile communication terminal possessed by the pet owner, and the present invention is not limited thereto and may include any identification number corresponding to a terminal capable of displaying text.

On the other hand, the text refers to the content that can be informed that the emergency, it may be the emergency notification text pre-stored in the memory (210).

In the above description, it is described that the message is generated by determining whether it is an emergency situation. However, the message is not limited thereto, and a message for notifying the analyzed emotional state may be generated at predetermined time intervals. The state of the animal may be checked at any time through a mobile communication terminal.

On the other hand, when the pet's emotional state is an emergency, the call request signal generation unit 304 generates a signal for the call request to the terminal corresponding to the preset number.

Similarly, the preset number may be a number of a terminal owned by the pet owner, and the call request signal generator 304 is assigned to the pet portable device so that the owner can recognize that the pet is a call request from the pet portable device. Generates an outgoing request signal containing the number.

According to the present invention, the preset number may be set to one or more, which is to prepare for a case where some of the family members who keep pets are not contacted.

The transceiver 306 modulates the generated message or origination request signal and converts it into an RF signal, and then transmits the signal through an antenna.

4 is a diagram illustrating a communication system between a pet portable device and a owner's mobile communication terminal.

Referring to FIG. 4, when the pet portable apparatus 400 detects an emergency of a pet, a message transmission or call request signal is generated to a preset number as described above.

The pet portable device 400 may transmit a signal wirelessly through the base station 402 like a general mobile communication terminal. The base station controller 404 and the exchange 406 process a message transmission request and an origination request in advance. It transmits a message transmitted from the pet portable device 400 to the mobile communication terminal 408 corresponding to the set number or calls the mobile communication terminal 408.

On the other hand, in the above description, but described as generating a message using the message content (text) previously stored in the pet portable device 400, the text message service system connected to the switch 406 to the pet portable device When a message transmission request is received at the corresponding number, it may be recognized that it is an emergency situation and the corresponding text may be extracted and the message including the corresponding text may be transmitted to the owner's mobile communication terminal.

Referring back to FIG. 2, the pet portable device according to the present invention may provide a sound source corresponding to the emotional state of the pet analyzed by the state analyzer 202.

According to a preferred embodiment of the present invention, when the emotional state is analyzed, the sound source selection unit 206 extracts a digital sound source corresponding to the analyzed emotional state in the memory 210. According to the present invention, the digital sound source stored in the memory 210 may be in a compressed format. The sound source reproducing unit 208 may include a decoding and a DAC, decodes the digital sound source, converts it into an analog signal, and outputs the analog signal.

More preferably, the sound source selection unit 206 according to the present invention may determine the digital sound source corresponding to the emotional state of the pet in a feedback manner.

For example, even though a certain sound source has been proven to be able to alleviate the emotional state of a pet having a high stress index, the digital sound source for improving the specific emotional state may vary according to the characteristics of the individual pet.

In such a situation, simply providing a generalized sound source may not be efficient. For this purpose, the sound source selection unit 206 according to the present invention may be stored in the memory 210 when the first emotional state of the pet is analyzed. Select and output digital sound sources sequentially.

After playing the digital sound source, the state analyzer 202 analyzes the current emotional state through the received voice of the pet.

If the analysis result is improved compared to the analyzed first emotional state, the sound source selection unit 206 determines that the digital sound source currently being reproduced corresponds to the first emotional state, and matches this to the memory 210. Can be stored.

On the other hand, if the emotional state of the pet analyzed again after the digital sound source is not improved compared to the first emotional state, the sound source selector 206 may select and play the next digital sound source.

By repeating this process, the digital sound source corresponding to each emotional state can be dynamically determined for a specific pet.

Whether the emotional state is improved in determining the digital sound source through the feedback method may be determined by whether the stress index decreases, for example, whether the stress index after playing the digital sound source is lowered below a predetermined reference value. It may be determined whether the condition has improved.

According to another embodiment of the present invention, the digital sound source may be dynamically generated according to the emotional state of the pet.

In the memory 210 according to the present invention, a sound source in a basic (eg, node) unit in which melody, rhythm, and harmony are distinguished from each other, rather than one completed form of digital sound source, may be separately stored. The sound source selection unit 206 may complete a digital sound source to be reproduced by extracting and combining the sound source of the basic unit when the pet's emotional state requires the sound source reproduction.

FIG. 5 is a diagram illustrating a field structure of a memory according to the present invention. The memory 210 according to the present invention includes a text field 500, a sound source field 502, a status information field 504, and a matching information field 506. ) And a schedule field 508.

The text field 500 stores various texts that may be included in a message when the pet's emotional state is an emergency.

The reproduced digital sound source is compressed and stored in the sound source field 502. In this case, the sound source may be one completed form or may be a sound source of a basic unit.

The digital sound source played back to the pet preferably belongs to only the audible frequency of the pet so as not to disturb the person.

The state information field 504 stores correlation information for allowing the state analyzer 202 to analyze the emotional state through voice. For example, the size of the voice according to the type, size, weight, and size of the pet ( dB), number of builds per unit time, frequency, amplitude, interval between notes, correlation information between pattern change and emotional state are stored.

The matching information field 506 stores identification information of the digital sound source matching the emotional state of the pet. Such matching information may be preset, but may be updated when a digital sound source suitable for an emotional state is determined by a feedback method.

Meanwhile, according to the present invention, the owner may set the digital sound source to be played for each specific situation (time to go out, nap time, meal time, etc.) or time zone through the manual input unit 214, and the owner may manually set the schedule in the schedule field 508. The start time, end time, and schedule information of the digital sound source played back at the corresponding time are stored.

The sound source selection unit 206 allows the set digital sound source to be played when the corresponding time is reached according to the previously stored schedule information.

According to the present invention, the display unit 212 displays the analyzed emotional state of the state analyzer 202.

In addition, the display unit 212 may display information about a digital sound source currently being reproduced. The display unit 212 may be implemented by using a conventional display element such as a liquid crystal display (LCD) and may display colors with each other according to the current state of the pet.

In this way, if a different color is output depending on the emotional state of the pet, the current state of the pet can be easily understood from a long distance.

The manual input unit 214 may include various key buttons for various operations (on / off, volume adjustment, sound source selection) related to digital sound source reproduction, number setting for transmitting a message when an emergency occurs to a pet, and the like. have.

At this time, the reproduction, setting, etc. of the digital sound source may be performed by using a remote controller. In this case, the manual input unit 214 may perform only an interface function for transmitting and receiving a remote controller signal.

The controller 216 controls the overall operation of the pet portable device, and may perform overall control functions for initiating state analysis, communicating with an external terminal, and reproducing a digital sound source corresponding to an emotional state.

The following describes in detail the process of providing a pet service according to the present invention with reference to the flowchart.

6 is a flowchart illustrating an operation of a portable pet device for an emergency situation according to the present invention.

Referring to FIG. 6, the pet portable device receives a voice of a pet (step 600) and analyzes a pet's emotional state using previously stored correlation information (step 602).

Thereafter, it is determined whether the analyzed emotional state is a preset emotional state (step 604).

As described above, the analysis of the emotional state may be a process of analyzing how much the stress index is, and step 604 may be a process of determining whether the stress index of the current pet exceeds the threshold.

If the emotional state of the pet is an emotional state corresponding to an emergency, the pet portable device generates a message (step 606) and generates a call request signal (step 608).

Here, steps 606 to 608 may optionally be performed.

The message and the call request signal may include preset number information, and the pet portable device requests that the generated message and call request signal be transmitted to the corresponding number (step 510).

As described above, the preset number may be a mobile communication terminal number for one or more owners, and the pet portable device performs a process of transmitting a corresponding message and processing a call connection with the owner's mobile communication terminal through an outgoing call. To perform.

7 is a flowchart illustrating a process of providing a digital sound source for pets according to an embodiment of the present invention.

FIG. 7 illustrates a process of searching for a digital sound source optimized for a pet's emotional state. Referring to FIG. 7, the pet portable device receives a voice of a pet (step 700), and the pet's first sound source is searched for. One emotional state is analyzed (step 702).

If the emotional state of the pet requires the reproduction of the digital sound source, the pet portable device plays the nth sound source (step 704). Here, n may be one or more natural numbers, and step 704 is a process of reproducing the digital sound source in a predetermined order.

After playing the n-th digital sound source, the pet portable device receives the pet's voice again, and analyzes the pet's emotional state (steps 706 to 708).

Thereafter, the pet portable device determines whether the emotional state of the pet is improved through the analyzed emotional state (step 610).

The improvement of the emotional state may be determined by whether the stress index is lowered below a predetermined value.

If the emotional state is not improved, the pet portable device selects a digital sound source corresponding to the next order (step 612), and then repeats the steps 706 to 610.

When the emotional state of the pet is improved in step 610, the portable pet device for the pet plays the digital sound source and simultaneously matches and stores the digital sound source and the first emotional state information of the pet analyzed first (step S610). 714).

According to step 714, if the pet's emotional state is later analyzed to be the same as the stored first emotional state, the pet's emotional state can be easily improved since the digital sound source is matched with this stored.

Meanwhile, the digital sound source according to the emotional state may be provided through a combination process, which will be described with reference to FIG. 8.

8 is a flowchart illustrating a process for providing a digital sound source for a pet according to another embodiment of the present invention.

Referring to FIG. 8, the pet portable device receives a pet's voice (step 800), and analyzes the first emotional state of the pet using the pet's voice (step 802).

Thereafter, the pet portable device performs a sound source combining process according to a preset algorithm (step 804).

Here, step 804 is a process of generating a digital sound source in a completed form by combining sound sources of each basic unit when the sound source data is stored in the memory unit in a node unit or a predetermined basic unit.

After the sound source combination, the pet portable device reproduces the combined digital sound source (step 806), and at the same time performs a process of receiving the pet's voice again to analyze the emotional state (steps 808 to 810).

After playing the combined sound source, it is determined whether the emotional state of the pet is improved (step 812). If the emotional state is not improved, the process of combining different sound sources is performed in step 804.

Subsequently, steps 806 to 812 are repeated, and after reproducing a sound source of another combination, the pet's emotional state is improved, and the sound source combination information and information about the first analyzed first emotional state are matched and stored (step S806). 814).

In the case of humans, it is preferred to listen to a completed form of music having predetermined lyrics, rhythms, etc., but in the case of pets, music different from humans may be preferred.

For this reason, the present invention can provide a sound source that is optimized according to the emotional state of the pet by creating a new combination based on the sound source of each basic unit that is generally proven to improve the emotional state of the pet.

Preferred embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art will be able to make various modifications, changes, and additions within the spirit and scope of the present invention. Additions should be considered to be within the scope of the following claims.

1 is a block diagram of a sound source player for a pet according to the prior art.

Figure 2 is a block diagram of a portable pet device according to an embodiment of the present invention.

3 is a diagram showing a detailed configuration of a communication unit according to the present invention.

4 is a diagram showing a communication system between a pet portable device and a owner's mobile communication terminal.

5 illustrates a field structure of a memory according to the present invention.

Figure 6 is a flow chart of the operation of the pet portable device when an emergency situation according to the present invention.

7 is a flow chart illustrating a process for providing a digital sound source for pets according to an embodiment of the present invention.

8 is a flow chart showing a digital sound source providing process for pets according to another embodiment of the present invention.

Claims (17)

A method for providing a pet service in a pet portable device, (a) receiving a pet's voice; (b) analyzing the emotional state of the pet using the received voice; And (c) if the pet's emotional state is a preset emotional state, performing at least one of a message transmission request or a transmission request to a terminal corresponding to a preset number. The method of claim 1, The step (c) comprises the step of generating a message comprising at least one of a text corresponding to the preset emotional state and a predetermined one or more numbers. The method of claim 1, The step (c) comprises the step of generating an outgoing request signal including one or more preset numbers. The method of claim 1, The terminal corresponding to the preset number is a terminal connected to a mobile communication network, and when a message transmission request is made in step (c), a message including a text corresponding to the preset emotional state is sent by the message system of the mobile communication network. Producing and transmitting the pet service to the mobile terminal. The method of claim 1, The step (b) digitizes the emotional state of the pet according to a preset algorithm, and the step (c) includes comparing a value corresponding to the emotional state with a predetermined threshold value. Way. The method of claim 5, Step (b) includes quantifying the emotional state by the stress index, The step (c) comprises the step of determining whether the stress index exceeds a preset threshold. The method of claim 1, Reproducing a digital sound source corresponding to the emotional state of the pet. The method of claim 1, (d) reproducing the digital sound source according to a preset order after analyzing the emotional state of the pet, and searching for the digital sound source having an improvement effect of the analyzed emotional state in a feedback manner. Way. The method of claim 8, In step (d), (d1) when the first emotional state of the pet is analyzed, reproducing a pre-stored digital sound source in a preset order; (d2) analyzing the voice of the pet received after playing the digital sound source; (d3) determining whether a second emotional state of the analyzed pet is improved; And and (d4) matching and storing the reproduced digital sound source with respect to the first emotional state when the second emotional state is improved. The method of claim 1, (e) combining digital sound sources according to a preset algorithm after analyzing the emotional state of the pet; (f) playing the combined digital sound source (g) repeating the steps (e) to (f) to search for a digital sound source having an effect of improving the analyzed emotional state in a feedback manner. The method of claim 10, The step (e) is a pet service providing method for combining the sound source stored in a predetermined basic unit. A method for providing a pet service in a pet portable device, (a) receiving a pet's voice; (b) analyzing the emotional state of the pet using the received voice; And (c) reproducing the digital sound source according to a preset order after analyzing the emotional state of the pet, and searching for the digital sound source having the analyzed emotional state improvement effect in a feedback manner. . A computer-readable recording medium carrying out the method according to claim 1. In the portable device for pets, A voice receiver for receiving a voice of a pet; A memory for storing correlation information between a voice and an emotional state according to the characteristics of the pet; And A state analyzer for analyzing a pet's emotional state by using the received voice with reference to the memory; And And a communication unit configured to perform at least one of a message transmission request or a transmission request to a terminal corresponding to a preset number when the emotion state of the pet is a preset emotion state. The method of claim 14, The communication unit, A message generator for generating a message including a text corresponding to the preset emotion state and at least one preset number; And A mobile device for pets, comprising: a call request generator for generating a call request signal including at least one preset number. The method of claim 15, The state analyzer digitizes the emotional state of the pet according to a preset algorithm, The communication unit further comprises a threshold determination unit for comparing a value corresponding to the emotional state with a predetermined threshold. The method of claim 14, And a sound source selection unit for reproducing the digital sound source according to a preset order after analyzing the emotional state of the pet and searching for the digital sound source having the analyzed emotional state improvement effect in a feedback manner.

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