CONTROL DEVICE, SPEAKER CONTROL METHOD, AND SYSTEM

Abstract

This control device (10) comprises a position information acquiring unit (110) and a control unit (120). The position information acquiring unit (110) acquires information (position information) indicating the position of a person in a store. The position information acquiring unit (110) generates the position information by, for example, acquiring and processing, in real time, image data generated by an image capture device placed in the store. The control unit (120) controls a plurality of speakers (22, 24) in the store independently from each other by using the position information generated or acquired by the position information acquiring unit (110). Items that are subject to the control performed here include, as mentioned above, at least one of the selection of sound data to be supplied, the timing of supplying the sound data, and the sound volume.

Description

[Technical field]

[0001] The present invention relates to a control device, a speaker control method, and a system. [Background technology]

[0002] In many stores, multiple speakers are installed to play music and audio guidance, and in most cases, the same sound is output from these multiple speakers.

[0003] Patent Document 1 discloses a navigation device that uses sound to guide a person being supported. This navigation device first outputs a trigger sound from a speaker and detects the reaction of the person who hears the trigger sound. Based on this reaction, the navigation device determines whether or not the person is a person being supported. The navigation device then outputs a guidance sound to the person being supported. The guidance sound is a sound for guiding the person being supported to the sweet spot of a parametric speaker. When the person being supported moves to the sweet spot, the navigation device outputs a guidance sound from the parametric speaker. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-14084 A Summary of the Invention [Problem to be solved by the invention]

[0005] It is effective to provide information to people such as customers in a store. The present inventor has studied a technique for making information easily recognizable to people when the information is provided to people using voice. One of the objects of the present invention is to make it easier for people in a store to recognize information provided by voice. [Means for solving the problem]

[0006] According to the present invention, a location information acquisition means for acquiring location information indicating a location of a person in a store; a control means for controlling a plurality of speakers installed at different positions in the store using the position information; Equipped with A control device is provided in which the control means uses the position information to control at least one of the type of sound data supplied to a plurality of speakers, the volume, and the timing at which the sound data is supplied to the speakers.

[0007] According to the present invention, there is provided an image data acquisition means for acquiring image data showing the inside of a store; an image processing means for generating people information, which is information about people in the store, by processing the image data; a control means for controlling a plurality of speakers installed in the store independently of one another using the person information; A control device is provided comprising:

[0008] According to the present invention, a computer A location information acquisition process for acquiring location information indicating the location of a person in the store; a control process for controlling a plurality of speakers installed at different positions in the store using the position information; Do the following: A control method is provided in which, in the control processing, the computer uses the position information to control at least one of the control objects for a plurality of speakers, namely the type of sound data supplied, the volume, and the timing at which the sound data is supplied to the speakers.

[0009] According to the present invention, a computer an image data acquisition process for acquiring image data showing the inside of a store; image processing for generating people information, which is information about people in the store, by processing the image data; a control process for controlling a plurality of speakers installed in the store independently of each other using the person information; A control method is provided for:

[0010] According to the present invention, a computer includes: A location information acquisition function that acquires location information indicating the location of people in the store; a control function for controlling a plurality of speakers installed at different positions in the store using the position information; Let them have The control function includes a program for controlling, using the position information, at least one of the control objects for a plurality of speakers, namely, the type of sound data supplied, the volume, and the timing at which the sound data is supplied to the speakers.

[0011] According to the present invention, a computer includes: an image data acquisition function for acquiring image data showing the inside of the store; an image processing function for generating people information, which is information about people in the store, by processing the image data; a control function for controlling a plurality of speakers installed in the store independently of each other by using the person information; A program will be provided to help students develop these skills.

[0012] According to the present invention, there is provided a system including the above-mentioned control device and a plurality of speakers. Effect of the Invention

[0013] According to the present invention, people in a store can more easily understand information provided by voice. [Brief description of the drawings]

[0014] The above objects, as well as other objects, features and advantages, will become more apparent from the following preferred embodiments and the accompanying drawings.

[0015] [Figure 1] FIG. 2 is a diagram for explaining a usage environment of the control device according to the first embodiment. [Diagram 2] FIG. 2 is a diagram illustrating an example of a functional configuration of a control device. [Diagram 3] 4 is a diagram showing a first example of data stored in a sound data storage unit; FIG. [Figure 4] 13 is a diagram showing a second example of data stored in the sound data storage unit. FIG. [Diagram 5] FIG. 2 is a diagram illustrating an example of a hardware configuration of a control device. [Figure 6] 4 is a flowchart illustrating an example of a process performed by a control device. [Figure 7] FIG. 11 is a diagram for explaining a usage environment of a control device according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same components are given the same reference numerals and the description will be omitted as appropriate.

[0017] (First embodiment) 1 is a diagram for explaining the usage environment of a control device 10 according to this embodiment. The control device 10 is part of a system. In addition to the control device 10, this system includes multiple speakers. The control device 10 controls the multiple speakers (speakers 22 and 24 in the example shown in this figure) independently of each other. The independent control here includes at least one of the selection of sound data to be supplied, the timing of supplying the sound data, and the volume.

[0018] The multiple speakers are installed apart from each other in the same store. If the store has multiple floors, the multiple speakers are arranged on the same floor. The store is also provided with a sensor for generating information indicating a person's position (hereinafter referred to as position information). An example of this sensor is an imaging device. In this case, the position information is generated by processing image data generated by the imaging device. The control device 10 then uses this position information to control the multiple speakers.

[0019] In this embodiment, both the speakers 22 and 24 have directionality. An example of the speakers 22 and 24 is a parametric speaker. When the position information indicates that a person is present within a range where a sound from the speaker 22 can be heard (hereinafter, referred to as the partial area 42), the control device 10 supplies the first sound data to the speaker 22. When the position information indicates that a person is present within a range where a sound from the speaker 24 can be heard (hereinafter, referred to as the partial area 44), the control device 10 supplies the second sound data to the speaker 24. The first sound data and the second sound data indicate, for example, information related to a product. As an example, the first sound data is information related to a product arranged near the partial area 42, and the second sound data is information related to a product arranged near the partial area 44.

[0020] The partial areas 42 and 44 include, for example, at least one of the areas in front of a cash register counter, the area in front of a terminal operated by a customer, and the area in front of a specific product shelf. An example of a terminal operated by a customer is a kiosk terminal, an automated teller machine (ATM), or a self-service POS terminal.

[0021] In the example shown in the figure, the store is provided with an imaging device 32 whose imaging range includes the partial region 42, and an imaging device 34 whose imaging range includes the partial region 44. If the image data generated by the imaging device 32 includes a person, the control device 10 supplies first sound data to the speaker 22. If the image data generated by the imaging device 34 includes a person, the control device 10 supplies second sound data to the speaker 24. The frame rate of the image data generated by the imaging devices 32 and 34 is, for example, 5 frames / second or more, but may be more or less than this.

[0022] The control device 10 may supply the first sound data to the speaker 22 when a person is present in a specific area of ​​the image data generated by the imaging device 32. The control device 10 may supply the second sound data to the speaker 24 when a person is present in a specific area of ​​the image data generated by the imaging device 34.

[0023] In addition, when the imaging range of a single imaging device includes both partial areas 42 and 44, the control device 10 may process the image data generated by the imaging device to determine whether or not a person is in partial area 42, and may also determine whether or not a person is in partial area 44.

[0024] Furthermore, the sensor for generating the position information may be a human presence sensor such as an infrared sensor. In this case, human presence sensors are provided in multiple locations in the store. When these human presence sensors detect a person, they output identification information of the human presence sensor to the control device 10. The control device 10 stores the identification information of the human presence sensor in association with information indicating the detection range of the human presence sensor. Therefore, the control device 10 can generate the above-mentioned position information using the received identification information of the human presence sensor.

[0025] 2 is a diagram showing an example of a functional configuration of the control device 10. In the example shown in this figure, the control device 10 includes a position information acquisition unit 110 and a control unit 120.

[0026] The location information acquisition unit 110 acquires location information. In the example shown in the figure, the location information acquisition unit 110 serves both as an image acquisition unit and an image processing unit, and generates the above-mentioned location information by acquiring and processing image data generated by an imaging device (e.g., imaging devices 32 and 34) installed in the store in real time. Note that when the above-mentioned multiple human presence sensors are used instead of the imaging devices 32 and 34, the location information acquisition unit 110 generates the above-mentioned location information using the received identification information of the human presence sensors.

[0027] When the image acquisition unit and the image processing unit are provided outside the control device 10, the position information acquisition unit 110 acquires the position information generated by the image processing unit.

[0028] The control unit 120 controls multiple speakers (e.g., speakers 22, 24) in the store independently of one another, using the location information generated or acquired by the location information acquisition unit 110. The objects of control performed here (hereinafter, referred to as control objects) include at least one of the selection of sound data to be supplied, the timing of supplying the sound data, and the volume, as described above.

[0029] For example, when the position information indicates that a person is present in the partial area 42 corresponding to the speaker 22, the control unit 120 supplies the first sound data to the speaker 22. When the position information indicates that a person is present in the partial area 44 corresponding to the speaker 24, the control device 10 supplies the second sound data to the speaker 24.

[0030] Furthermore, the above-mentioned image processing may allow the identification of human attributes, such as gender, age group, clothing, posture, gestures, sweating state (e.g., whether or not the person is sweating), and facial recognition. of At least one of the master information (hereinafter referred to as face recognition information) is used. An example of posture and gesture is the posture and / or movement of the person when he / she feels cold, hot The position information includes the posture and / or movement of a person when the person feels that they are in a certain position. In this case, the position information includes the attributes of the person. When selecting sound data to be supplied to a speaker (for example, the first sound data or the second sound data), the control unit 120 may use the attributes of the person in the partial area corresponding to the speaker. In other words, the control unit 120 may change the sound data to be output to the speaker according to the attributes of the person. In addition, when the attributes of the person include face recognition information, the face recognition information may be used to output specific sound data to a specific person.

[0031] The sound data to be supplied to the speaker is stored in a sound data storage unit 130. The control unit 120 reads out the sound data from the sound data storage unit 130 and supplies it to the speaker. In the example shown in the figure, the sound data storage unit 130 is a part of the control device 10. However, the sound data storage unit 130 may be located outside the control device 10.

[0032] The control device 10 may have a common mode in which the same control is performed on multiple speakers, and an independent mode in which the multiple speakers are controlled independently of each other. In this case, in the independent mode, the control device 10 uses the position information described above to control the above-mentioned control targets independently of each other among the multiple speakers.

[0033] 3 is a diagram showing a first example of data stored in the sound data storage unit 130. In the example shown in this figure, the sound data storage unit 130 stores sound data to be supplied to each of a plurality of speakers separately. This allows the control unit 120 to read out sound data for each speaker from the sound data storage unit 130.

[0034] FIG. 4 is a diagram showing a second example of data stored in the sound data storage unit 130. In the example shown in this figure, the sound data storage unit 130 stores sound data by person's attributes. More specifically, the sound data storage unit 130 stores, for each of a plurality of speakers, sound data to be supplied to the speaker and attributes corresponding to the sound data. This allows the control unit 120 to read out sound data corresponding to the attributes of a person who has entered the partial area 42 (or partial area 44) from the sound data storage unit 130 and supply it to the speaker 22 (or speaker 24). For example, the control unit 120 selects sound data including information about a product corresponding to an age group or gender. In addition, when the attribute includes at least one of posture, gesture, and sweating state, the control unit 120 may select sound data including information about a product corresponding to the attribute. For example, when it can be estimated that the person feels hot from at least one of gesture and sweating state, the control unit 120 selects sound data related to a cold product (drink or food). Furthermore, if it can be estimated that the person feels cold, the control unit 120 selects sound data related to a warm product (drink or food). Note that the control unit 120 may control the volume of the speaker 22 (or the speaker 24) according to the age group of the person who has entered the partial area 42 (or the partial area 44). For example, the control unit 120 increases the volume as the age group increases.

[0035] 5 is a diagram showing an example of a hardware configuration of the control device 10. The control device 10 includes a bus 1010, a processor 1020, a memory 1030, a storage device 1040, an input / output interface 1050, and a network interface 1060.

[0036] The bus 1010 is a data transmission path for transmitting and receiving data among the processor 1020, memory 1030, storage device 1040, input / output interface 1050, and network interface 1060. However, the method of connecting the processor 1020 and the like to each other is not limited to bus connection.

[0037] The processor 1020 is implemented by a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), or the like.

[0038] The memory 1030 is a main storage device realized by a RAM (Random Access Memory) or the like.

[0039] The storage device 1040 is an auxiliary storage device realized by a hard disk drive (HDD), a solid state drive (SSD), a memory card, a read only memory (ROM), or the like. The storage device 1040 stores program modules that realize each function of the control device 10 (for example, the position information acquisition unit 110 and the control unit 120). The processor 1020 loads each of these program modules onto the memory 1030 and executes them, thereby realizing each function corresponding to the program module. The storage device 1040 also functions as the sound data storage unit 130.

[0040] The input / output interface 1050 is an interface for connecting the control device 10 to various input / output devices. For example, the control device 10 may communicate with an imaging device and a speaker via the input / output interface 1050. Although not shown, the number of input / output interfaces 1050 may be increased or decreased depending on the number of input / output devices to be connected. For example, in the example shown in FIG. 1, four input / output interfaces 1050 may be provided.

[0041] The network interface 1060 is an interface for connecting the control device 10 to a network. This network is, for example, a LAN (Local Area Network) or a WAN (Wide Area Network). The network interface 1060 may connect to the network by wireless connection or by wired connection. The control device 10 may communicate with an imaging device and a speaker via the network interface 1060.

[0042] 6 is a flow chart showing an example of processing performed by the control device 10. The control device 10 repeatedly performs the processing shown in this figure.

[0043] When the imaging devices 32, 34 generate image data, they immediately transmit the image data to the control device 10. At this time, the imaging devices 32, 34 also transmit information for identifying the imaging devices. When the position information acquisition unit 110 of the control device 10 acquires the image data (step S110), it processes the image data to generate the above-mentioned position information. At this time, the position information acquisition unit 110 also generates information indicating the attributes of the person as necessary (step S120). The control unit 120 uses the information generated in step S120 to control the speakers 22, 24 independently of each other (step S130). Details of the control performed here are as described with reference to Figs. 1 and 2.

[0044] As described above, according to this embodiment, the control device 10 controls multiple speakers (e.g., speakers 22, 24) installed in the store independently of one another according to the location of people in the store. The control performed here includes at least one of the selection of sound data to be supplied, the timing of supplying the sound data, and the volume. This makes it easier for people in the store to recognize information provided by voice.

[0045] Second embodiment 7 is a diagram for explaining the usage environment of the control device 10 according to this embodiment. The usage environment of the control device 10 according to this embodiment is similar to the usage environment shown in FIG. 1, except that in addition to the directional speakers 22 and 24, at least one speaker 26 is provided in the store.

[0046] The speaker 26 does not have directionality and can deliver sound over a wider range than the speakers 22 and 24. The range in which sound from the speaker 26 can reach also includes the partial areas 42 and 44.

[0047] The control unit 120 of the control device 10 controls the speaker 22 (or the speaker 24) and the speaker 26 independently of each other depending on the presence or absence of a person in the partial area 42 (or the partial area 44).

[0048] For example, when the position information indicates that no person is present in either of the partial areas 42, 44, the control unit 120 supplies sound data to the speaker 26. This sound data is different from both the first sound data supplied to the speaker 22 and the second sound data supplied to the speaker 24. The sound data supplied to the speaker 26 may be the voice of the store clerk currently inputting into the microphone, or may be read from the sound data storage unit 130. Moreover, the control unit 120 does not supply sound data to either the speakers 22, 24.

[0049] When the position information indicates that a person is present in at least one of the partial regions 42 and 44, the control unit 120 stops the supply of sound data to the speaker 26 or reduces the volume of the speaker 26. Furthermore, the control unit 120 supplies the first sound data to the speaker 22 when a person is present in the partial region 42, and supplies the second sound data to the speaker 24 when a person is present in the partial region 44.

[0050] It is not necessary to provide the speaker 24. In this case, the control device 10 controls one directional speaker 22 and one non-directional speaker 24. In this case, the imaging device 34 is not necessary to provide either.

[0051] According to this embodiment, a person can recognize the voice emitted by the speaker 26 when not inside the partial area 42, 44. At this time, the speakers 22, 24 are not emitting any voice. Furthermore, when the person enters the partial area 42 (or partial area 44), the person can recognize the voice emitted by the speaker 22 (or speaker 24). At this time, the speaker 26 is not emitting any voice, or the volume of the speaker 26 is turned down. Therefore, people in the store can easily recognize information provided by voice. Furthermore, information can be provided only to people who have entered the partial area 42 (or partial area 44).

[0052] In this embodiment, the control unit 120 may control multiple speakers including the speaker 26 independently of each other by using the result of processing image data generated by the imaging devices 32, 34 or other imaging devices (however capturing images of the inside of the store). For example, the control unit 120 processes the image data to generate information about people in the store (for example, this may be attribute information only, or may include both people's position information and attribute information). The control unit 120 then uses this information to control the multiple speakers independently of each other. Here, the objects to be controlled are at least one of the sound data supplied to each speaker, the timing at which the sound data is supplied to each speaker, and the volume of each speaker.

[0053] Although the embodiments of the present invention have been described above with reference to the drawings, these are merely examples of the present invention, and various configurations other than those described above can also be adopted.

[0054] In addition, in the flowcharts used in the above description, multiple steps (processes) are described in order, but the order of execution of the steps performed in each embodiment is not limited to the order described. In each embodiment, the order of the steps shown in the figures can be changed to the extent that the content is not affected. In addition, the above-mentioned embodiments can be combined to the extent that the content is not contradictory.

[0055] A part or all of the above-described embodiments can be described as, but are not limited to, the following supplementary notes. 1. A location information acquisition means for acquiring location information indicating the location of a person in a store; a control means for controlling a plurality of speakers installed at different positions in the store using the position information; Equipped with The control means uses the position information to control at least one of the type of sound data to be supplied to each of a plurality of speakers, the volume of the sound data, and the timing at which the sound data is supplied to the corresponding speaker. 2. In the control device according to the above item 1, The control means a common mode in which the same control is performed on the plurality of speakers, and an independent mode in which the plurality of speakers are controlled independently of one another; A control device that controls the control target using the position information in the independent mode. 3. In the control device according to 1 or 2 above, A control device, wherein the first speaker is directional and the second speaker is non-directional. 4. In the control device according to the above item 3, A first partial area corresponding to the first speaker is set in the store, The control means when the position information indicates that no person is present in the first partial area, not supplying the first sound data to the first speaker and supplying the second sound data to the second speaker; A control device that, when the location information indicates that a person is present in the first partial area, does not supply the second sound data to the second speaker or lowers the volume of the second speaker and supplies the first sound data to the first speaker. 5. In the control device according to any one of the above items 1 to 4, A control device, wherein the location information is generated using image data showing the inside of the store. 6. In the control device according to the above item 5, The first speaker has directionality, A partial area corresponding to the first speaker is set in the store, The location information further includes attributes of the person in the partial area, the person attributes are generated using the image data; A control device, wherein the control means selects the sound data using attributes of the person. 7. In the control device according to any one of 1 to 6 above, The first speaker and the second speaker have directionality, A first partial area corresponding to the first speaker and a second partial area corresponding to the second speaker are set in the store, The control means When the position information indicates that a person is present in a first partial area, the first sound data is supplied to the first speaker. A control device that supplies second of the sound data to the second speaker when the location information indicates that a person is present in a second partial area. 8. An image data acquisition means for acquiring image data showing the inside of a store; an image processing means for generating people information, which is information about people in the store, by processing the image data; a control means for controlling a plurality of speakers installed in the store independently of one another using the person information; A control device comprising: In the control device according to claim 9.8, The control means controls, for each of the plurality of speakers, at least one of the sound data supplied to that speaker, the timing at which the sound data is supplied to that speaker, and the volume of that speaker independently of each other. 10. The computer A location information acquisition process for acquiring location information indicating the location of a person in the store; a control process for controlling a plurality of speakers installed at different positions in the store using the position information; Do the following: A control method in which, in the control processing, the computer uses the position information to control at least one of the control objects for a plurality of speakers, namely, the type of sound data supplied, the volume, and the timing at which the sound data is supplied to the speaker. 11. In the control method according to claim 10, In the control process, the computer a common mode in which the same control is performed on the plurality of speakers, and an independent mode in which the plurality of speakers are controlled independently of one another; A control method comprising: controlling the controlled object using the position information in the independent mode. 12. In the control method according to 10 or 11 above, A control method in which the first speaker is directional and the second speaker is non-directional. 13. In the control method according to claim 12, A first partial area corresponding to the first speaker is set in the store, In the control process, the computer when the position information indicates that no person is present in the first partial area, not supplying the first sound data to the first speaker and supplying the second sound data to the second speaker; A control method, when the location information indicates that a person is present in the first partial area, not supplying the second sound data to the second speaker or lowering the volume of the second speaker, and supplying the first sound data to the first speaker. 14. In the control method according to any one of claims 10 to 13, A control method, wherein the location information is generated using image data showing the inside of the store. 15. In the control method according to claim 14, The first speaker has directionality, A partial area corresponding to the first speaker is set in the store, The location information further includes attributes of the person in the partial area, the person attributes are generated using the image data; A control method, wherein in the control process, the computer selects the sound data using attributes of the person. 16. In the control method according to any one of claims 10 to 15, The first speaker and the second speaker have directionality, A first partial area corresponding to the first speaker and a second partial area corresponding to the second speaker are set in the store, In the control process, the computer When the position information indicates that a person is present in a first partial area, the first sound data is supplied to the first speaker. A control method comprising: when the position information indicates that a person is present in a second partial area, supplying second sound data to the second speaker. 17. The computer an image data acquisition process for acquiring image data showing the inside of a store; image processing for generating people information, which is information about people in the store, by processing the image data; a control process for controlling a plurality of speakers installed in the store independently of each other using the person information; A control method for performing the above. 18.17, in the control method according to A control method in which, in the control processing, the computer controls, for each of the multiple speakers, at least one of the sound data supplied to that speaker, the timing at which the sound data is supplied to that speaker, and the volume of that speaker independently of each other. 19. To the computer, A location information acquisition function that acquires location information indicating the location of people in the store; a control function for controlling a plurality of speakers installed at different positions in the store using the position information; Let them have The control function is a program that uses the position information to control at least one of the type of sound data supplied to a plurality of speakers, the volume, and the timing at which the sound data is supplied to the speakers. 20. In the program according to claim 19, The control function is a common mode in which the same control is performed on the plurality of speakers, and an independent mode in which the plurality of speakers are controlled independently of one another; A program for controlling the control target using the position information in the independent mode. 21. In the program according to 19 or 20 above, A program in which a first said speaker is directional and a second said speaker is non-directional. 22. In the program according to 21 above, A first partial area corresponding to the first speaker is set in the store, The control function is when the position information indicates that no person is present in the first partial area, not supplying the first sound data to the first speaker and supplying the second sound data to the second speaker; A program that, when the location information indicates that a person is present in the first partial area, does not supply the second sound data to the second speaker or lowers the volume of the second speaker, and supplies the first sound data to the first speaker. 23. In the program according to any one of the above 19 to 22, A program, wherein the location information is generated using image data showing the inside of the store. 24. In the program according to 23 above, The first speaker has directionality, A partial area corresponding to the first speaker is set in the store, The location information further includes attributes of the person in the partial area, the person attributes are generated using the image data; A program in which the control function selects the sound data using attributes of the person. 25. In the program according to any one of 19 to 24 above, The first speaker and the second speaker have directionality, A first partial area corresponding to the first speaker and a second partial area corresponding to the second speaker are set in the store, The control function is When the position information indicates that a person is present in a first partial area, the first sound data is supplied to the first speaker. When the location information indicates that a person is present in a second partial area, the program supplies second sound data to the second speaker. 26. To the computer, an image data acquisition function for acquiring image data showing the inside of the store; an image processing function for generating people information, which is information about people in the store, by processing the image data; a control function for controlling a plurality of speakers installed in the store independently of each other by using the person information; A program that allows you to have 27. In the program according to 26 above, The control function is a program that controls, for each of the multiple speakers, at least one of the sound data supplied to that speaker, the timing at which the sound data is supplied to that speaker, and the volume of that speaker independently of each other. 28. A control device according to any one of 1 to 7 above, The plurality of speakers; A system including: [Explanation of symbols]

[0056] 10 Control device 22,24,26 Speakers 32,34 Imaging device 42,44 subregion 110 Location information acquisition unit 120 Control section 130 Sound data storage unit

Claims

1. A location information acquisition means for acquiring location information indicating the location of a person in a store; a control means for controlling a plurality of speakers installed at different positions in the store using the position information; Equipped with the plurality of speakers includes a first speaker having directivity with respect to a first partial area in the store and a second speaker having no directivity within the store; The control means When the position information indicates that no person is present in the first partial area, the first sound data is not supplied to the first speaker and the second sound data is supplied to the second speaker; A control device that, when the position information indicates that a person is present in the first partial area, reduces a volume of the second speaker and supplies the first sound data to the first speaker.

2. 2. The control device according to claim 1, The control means a common mode in which the first speaker and the second speaker are controlled in the same manner, and an independent mode in which the first speaker and the second speaker are controlled independently of each other, A control device that controls the plurality of speakers using the position information in the independent mode.

3. 3. The control device according to claim 1, A control device, wherein the location information is generated using image data showing the inside of the store.

4. 4. The control device according to claim 3, The location information further includes attributes of the person in the first partial area, the person attributes are generated using the image data; A control device, wherein the control means selects the sound data using attributes of the person.

5. The control device according to any one of claims 1 to 4, the plurality of speakers includes a third speaker having directionality with respect to a second partial area in the store; The control means When the position information indicates that a person is present in the first partial area, the first sound data is supplied to the first speaker. A control device that supplies the second sound data to the third speaker when the position information indicates that a person is present in the second partial area.

6. An image data acquisition means for acquiring image data showing the inside of a store; an image processing means for generating people information, which is information about people in the store, by processing the image data; a control means for controlling a plurality of speakers installed in the store independently of one another using the person information; Equipped with the plurality of speakers includes a first speaker having directivity with respect to a first partial area in the store and a second speaker having no directivity within the store; The control means When the person information indicates that no person is present in the first partial region, the first sound data is not supplied to the first speaker, and the second sound data is supplied to the second speaker; a control device that, when the person information indicates that a person is present in the first partial area, reduces a volume of the second speaker and supplies the first sound data to the first speaker.

7. The computer A location information acquisition process for acquiring location information indicating the location of a person in the store; a control process for controlling a plurality of speakers installed at different positions in the store using the position information; Do the following: the plurality of speakers includes a first speaker having directivity with respect to a first partial area in the store and a second speaker having no directivity within the store; In the control process, the computer When the position information indicates that no person is present in the first partial area, the first sound data is not supplied to the first speaker and the second sound data is supplied to the second speaker; A control method comprising: when the position information indicates that a person is present in the first partial area, lowering a volume of the second speaker and supplying the first sound data to the first speaker.

8. The computer an image data acquisition process for acquiring image data showing the inside of a store; image processing for generating people information, which is information about people in the store, by processing the image data; a control process for controlling a plurality of speakers installed in the store independently of each other using the person information; Do the following: the plurality of speakers includes a first speaker having directivity with respect to a first partial area in the store and a second speaker having no directivity within the store; In the control process, the computer When the person information indicates that no person is present in the first partial region, the first sound data is not supplied to the first speaker, and the second sound data is supplied to the second speaker; A control method comprising: when the person information indicates that a person is present in the first partial area, lowering a volume of the second speaker and supplying the first sound data to the first speaker.

9. A control device according to any one of claims 1 to 5; The plurality of speakers; A system having

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