JP2006025300A - Loudspeaker system and audition system for the loudspeaker system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a loudspeaker system with a saved space which enables many and diversified loudspeaker units therein to efficiently give audition and enable a listener to be properly given audition independently of the body length or the attitude of the listener even in an exhibition hall or the like where the space is limited. <P>SOLUTION: The loudspeaker system is provided with: a support section 11 for supporting loudspeaker units SP which are vertically arranged so that reference axes of a plurality of loudspeaker units are directed in the same direction; a moving section 20 for moving the support section 11 along the arrangement direction of the loudspeaker units SP; and a loudspeaker selection drive means for moving the moving section 20 so that the reference axis of one loudspeaker unit SP 2 selected from among the plurality of loudspeaker units SP is in matching with the set reference height and for driving the one selected loudspeaker unit SP 2, and the one selected loudspeaker unit SP 2 outputs sound. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a speaker device and a speaker device audition system thereof.

  When listening to music or the like with a speaker device, there is a demand to use different speaker devices to enjoy music or to compare different types of speaker devices. However, it is difficult to realize such a requirement because there are various restrictions such as enlarging the installation area in order to use different speaker devices for listening and to compare various speaker devices.

  In general, when comparing the listening of speaker devices, taking a speaker device display method at an exhibition or the like as an example, many exhibits can be efficiently displayed to visitors for exhibiting and explaining the exhibits. It is desirable to have a display method that can fully exhibit the performance and characteristics of the exhibits and leave an impression on the visitors. In particular, when the exhibit is a speaker device, it is natural that many listeners need to listen to a large number of speaker devices such as new products as an exhibit and thoroughly examine their performance and sound quality. .

  FIG. 1 is a top plan view showing a conventional speaker device J1 for display. These are provided with a large number of speaker units SP for display on the left and right sides. Specifically, the listener A stands at a position away from the speaker device J1, and six of these speaker units J2a to J2f are provided. The sound is sequentially output from the speaker units to compare and listen to these sounds. In the figure, the listener A has the speaker unit J3 at the center of the speaker device J1 positioned in front.

  However, when the respective speaker units J2a to J2f of the speaker device J1 are sequentially operated and auditioned, there are the following problems.

  Normally, the listening position of the speaker unit is most preferably listened to by the listener positioned on the reference axes Ka to Kf (shown by broken lines in FIG. 1) of the speaker unit, but as shown in FIG. When the listener A is at a position slightly deviated from the reference axes Ka to Kf in front of the speaker units J2a to J2f, the direct sound of the speaker units J2a to J2f cannot be accurately heard, which affects listening comparison. There is a problem. Further, there is a difference in the shortest distance from each speaker unit to the listener A (see L1 to L6 in the figure), and there is a time difference until the output sound reaches the listener A. It cannot be denied that there is some error in listening to and comparing units. Therefore, it is difficult to say that the method using the speaker device J1 in which the listener A stays at the position shown in the figure and listens to and compares these speaker units J2a to J2f is a good listening comparison method.

  In addition to differences in height among listeners, such as adults and children, the head (ears) position differs if the posture (standing or sitting) of the same listener is different. In the trial listening method using the speaker device J1 in FIG. In addition, the speaker device J1 shown in FIG. 1 has a very large installation space and requires a certain size, which is very inconvenient in an exhibition hall where space is limited.

  This invention makes it an example of a subject to cope with such a problem. In other words, it is possible to efficiently audition and display a plurality of speaker units in a space-saving manner, and at the time of auditioning, it is possible to always listen on the reference axis in front of each speaker unit and to accurately match the height and posture of the listener. It is an object of the present invention that accurate listening comparison and trial listening are possible at a high position.

  In order to achieve such an object, the speaker device and the speaker device audition system according to the present invention include at least the configurations according to the following independent claims.

  [Claim 1] A support part in which the speaker units are vertically arranged and supported so that the reference axes of the plurality of speaker units are directed in the same direction, and a moving part for moving the support part along the arrangement direction of the speaker units The moving unit is moved so that the reference axis of one speaker unit selected from the plurality of speaker units matches the set reference height, and the selected one speaker unit is driven. A speaker device comprising speaker selection drive means.

  7. A speaker device audition system in which a plurality of speaker devices according to claim 4 are arranged in one space, wherein the height human body sensor and the angle human body sensor detect a listener in the space. Thus, an audio output controller that sets the reference height and the specific direction of the reference axis in the plurality of speaker devices and outputs audio to the selected one speaker unit in each speaker device is provided. A speaker device audition system comprising:

  In the speaker device and the speaker device audition system according to the embodiment of the present invention, a plurality of human body detection sensors detect the presence or absence of a listener, and the control unit moves the speaker unit SP up and down or rotates left and right according to the detection signal. Combining movement to provide the optimal listening environment for listeners. Furthermore, by arranging a plurality of speaker devices according to the embodiment of the present invention in one space (for example, by arranging them in one room for exhibition or at the four corners of one booth) It is possible to compare the listening, and the performance and characteristics of each of the arranged speaker units SP can be sufficiently appealed to the listener.

  Hereinafter, a speaker device according to an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 2 is a perspective view showing the speaker device 10 according to the embodiment of the present invention. The speaker device 10 includes a support unit 11 that supports the speaker units SP arranged vertically so that the reference axes of the plurality of speaker units SP are oriented in the same direction, and the support unit 11 along the arrangement direction of the support units 11. The moving unit 20 is moved, and the moving unit 20 is moved so that the reference axis of one speaker unit SP selected from the plurality of speaker units SP matches the set reference height. Speaker selection driving means for driving one speaker unit SP.

  Furthermore, the rotating unit 30 that rotates the support unit 11 so that the reference axes of the plurality of speaker units SP are directed in a specific direction, the moving unit 20 and the driving unit 40 that drives the rotating unit 30, and these And a playback unit 70 (not shown in FIG. 2) for outputting a sound to the speaker unit SP at a predetermined position by a signal from the control unit 50. Further, a human body detection sensor 60 (an angle human body detection sensor 61 and a height human body detection sensor 62) that detects the position of the listener and sends a detection signal to the control unit 50 is provided.

  Hereinafter, these components will be sequentially described in detail.

  The moving unit 20 includes a support column 12 that supports the support unit 11 in which the plurality of speaker units SP <b> 1 to SP <b> 4 are disposed, a groove rail 21 that is disposed on a side surface of the support unit 11, and a groove rail 21 that is disposed inside the support column 12. And a shaft 22 that moves the support portion 11 up and down. The shaft 22 includes an upper shaft 22a having a spiral groove whose upper portion is fitted to the groove rail 21, and is configured from a lower shaft 22b without the spiral groove in the middle. It is fixed at the center of the moving gear 41c. That is, when the lower part of the shaft 22 is rotated by the drive unit, the upper shaft 22a having a spiral groove also rotates, and the shaft 22 moves up and down with respect to the groove rail 21 on the side of the support part 11 engaged with the spiral groove. By doing so, the whole support part 11 is moved up and down. FIG. 2 shows an example in which four speaker units SP1 to SP4 are arranged on the support portion 11, and the number of speaker units SP is not particularly limited.

  The rotating unit 30 includes a support base 31 that supports the entire speaker device 10 and a rotary moving base 32 that can freely rotate on the support base 31, and includes a drive unit 40, a control unit 50 (not shown), and a playback unit. 70 (not shown) and the like are provided therein. A rotation motor 42a, which will be described later, is embedded in the support base 31, and this rotation motor 42a is arranged so as to be linked to a rotation shaft 42d installed at the center of the rotation moving base 32.

  Next, the drive part 40 which drives the moving part 20 and the rotation part 30 is demonstrated in detail using FIG. FIG. 3 is a partially transparent view of the speaker device 10 with the drive unit 40 as the center. The drive unit 40 is composed of a vertical drive unit 41 and a rotary drive unit 42. The former vertical drive unit 41 operates the moving unit 20 that moves the support unit 11 up and down, and the latter rotary drive unit 42 includes a support unit. The rotating unit 30 that rotates 11 to the left and right is operated.

  The vertical drive unit 41 is disposed on the inner outer diameter side of the rotary moving table 32 and rotates the vertical shaft 41d fixed at the center of the vertical movement gear 41c that meshes with the vertical motor gear 41b attached to the rotation shaft of the vertical motor 41a. Then, the support part 11 is moved up and down. Here, the upper and lower shafts 41d are the same as the shaft 22 (lower shaft 22b) described above, and the upper portion of the lower shaft 22b continuous with the upper and lower shafts 41d is the spiral upper shaft 22a as described above.

  The rotation drive unit 42 rotates and moves the entire support unit 11 by rotating a rotation shaft 42d fixed to the center of a rotation movement gear 42c that meshes with a rotation motor gear 42b attached to a rotation shaft of the rotation motor 41a. Here, the rotary motor 42 a is embedded in the support base 31, and the rotary shaft 42 d is installed at the center of the rotary moving base 32.

  As described above, in the vertical drive unit 41, the vertical motor 41a is rotated to rotate the vertical motor gear 41b and the vertical movement gear 41c, and the vertical shaft 41d is rotated accordingly. 22a), the groove rail 21 on the side surface of the support portion 11 engaged with 22a) is pushed up (or pushed down), and as a result, the support portion 11 can be moved up and down. Similarly, in the rotation drive unit 42, the rotation motor 42a is rotated to rotate the rotation motor gear 42b and the rotation movement gear 42c, and the rotation shaft 42d is rotated accordingly, and the rotation movement table 32 is rotated to the left and right. The result support part 11 can be rotated in the left-right direction.

  Here, the control unit 50 (not shown in FIGS. 2 and 3) will be described. The control unit 50 is arranged inside the support base 31 and the rotary moving base 32 or inside the support part 11 and is detected by the human body detection sensor 60. It is a main part with a central function that receives a detection signal and sends a signal for controlling all subsequent operations (music reproduction and all these operations including vertical movement and rotational movement of the support unit 11). Includes microcomputers that perform high-speed arithmetic processing.

  Next, the speaker selection drive means of the speaker apparatus 10 which is embodiment of this invention is demonstrated using FIG. FIG. 2 is a schematic diagram in which a part of the speaker device 10 is omitted. Specifically, the speaker unit SP2 is positioned at a predetermined position (the height of the head of the listener A so that the speaker unit SP2 faces the listener A). The music from the reproduction unit 70 is output to the speaker unit SP2 via the control unit 50. And the height shows the case where the height position of the human body detection sensor 62b becomes the “reference height” for outputting the sound of the speaker units SP1 to SP4. The “reference height” is determined based on the result of human body detection by the height human body detection sensors 62a to 62d.

  Hereinafter, operations of the plurality of height human body detection sensors 62 will be described. The height human body detection sensor 62 includes a height human body detection sensor 62a disposed on the uppermost portion of the support portion 11 (for example, directly above the uppermost speaker unit SP1 of the plurality of speaker units) and the side surface of the support column 12. A plurality of height human body detection sensors 62b to 62d are provided at a certain interval (position facing the listener). Here, an example in which three height human body detection sensors are arranged on the side surface of the support pillar 12 is shown. However, there is no particular limitation on the number of these sensors, and the speaker unit SP is placed at a height position where all listeners can audition. It only has to be arranged.

  When the height human body detection sensor 62 detects a listener, it moves the support unit 11 up and down, and the reference of one speaker unit SP selected from among the four speaker units with respect to the head position of the listener A. The axis moves up and down so as to match the “reference height” determined in advance by the height human body detection sensor 62.

  Specifically, the height detection and vertical movement operations for determining the “reference height” will be described. Normally, when the listener A appears in front of each speaker unit SP, the height human body detection sensors 62a to 62d. Detects the listener A. Therefore, for example, it is assumed that the height human body detection sensors 62c and 62d detect the listener A and the height human body detection sensors 62a and 62b are not detected. That is, this indicates that the head (ear position) of the listener A is between the height human body detection sensors 62b to 62c. In this case, the height position of the highest detection sensor (in this case, the height human body detection sensor 62b) among the undetected height human body detection sensors is determined as the “reference height”.

  Then, the control unit 60 recognizes this, and sets the reference axis of the speaker unit SP (shown as the speaker SP2 in FIG. 2) closest to the undetected uppermost detection sensor 62b to the height of the human body detection sensor 62b. Move it up and down until it matches the “reference height” which is the “position”. As a result, the speaker SP2 is selected from the plurality of speaker units. Then, the signal from the control unit 60 is received, and the sound is output from the speaker SP2 at the “reference height”, so that listening at the “height position” optimum for the listener A is enabled.

  The control unit 50 next selects another speaker (for example, the speaker SP3) after a predetermined time has elapsed (for each set time), and the height human body detection sensor 62b that is the optimal “height position” for the listener A is selected. Other speakers are moved up and down to the position ("reference height"), and then the sound is output in the same manner. In this way, at every set time, all the speaker units SP move up and down sequentially, and sound is output sequentially with the “height position” of the fixed height human body detection sensor 62b as the “reference height”.

  If the highest height human body detection sensor 62a detects the presence of the listener A, that is, if the head of the listener A is at a position higher than the highest height human body detection sensor 62a. Then, the control unit 50 outputs a signal, further raises the support unit 11, and moves upward until the uppermost height human body detection sensor 62 a detects no listener A. If it is determined that no detection has been made, the position of the height that has not been detected is determined as the “reference height”. Then, the support unit 11 is moved and arranged so that the reference axis of the uppermost speaker SP1 matches the “reference height”, and audio is output from the speaker SP1. Listening by position is possible. Then, after a predetermined time has elapsed (every set time), the other speakers SP also sequentially output sound at the “height position”, thereby enabling all the speaker units SP to be auditioned.

  That is, according to the speaker device 10 shown in FIG. 4, when the “reference height” is determined by the height human body detection sensor 62 a, the support unit 11 rises until the listener A is not detected. The “standard height” varies depending on the height of the listener. However, when the “reference height” is determined by non-detection by the other height human body detection sensors 62b to 62d provided in the support column 12, the “height position” is fixed.

  As an example of how to determine the “reference height”, the “height position” of the highest undetected human body detection sensor is used as the sound output position (reference) of each speaker unit SP. In the embodiment, the present invention is not limited to this, and the “height position” of the detection sensor at the highest detection level may be used as a reference.

  Subsequently, the internal structure of the speaker selection driving means, the switching operation of each speaker unit SP, the sound output, and the like will be further described with reference to FIG. In the structure shown in FIG. 4, the control unit 50 and the reproduction unit 70 are electrically connected via the wiring 13, and the control unit 50 is supported by the wiring 14 a and 14 b disposed on the side surface of the support pillar 12. 11 speaker units SP1 to SP4 are electrically connected. One of the two wirings 14a and 14b is used for + (plus) wiring, and the other is used for-(minus) wiring. Here, as an example, the wiring 14a is for + wiring, and the wiring 14b is for -wiring. The wirings 14 a and 14 b led out from the support pillar 12 are connected to the + (plus) contact spring 15 a and the − (minus) contact spring 15 b on the side surface of the support portion 11. Then, a contact plate 16a (for + wiring) and a contact plate 16b (for −wiring) are provided at predetermined positions on the side surface of the support portion 11, and these are wires 17a connected by wiring from the individual speaker units SP1 to SP4, 17b, respectively.

For example, in FIG. 4, wirings 17a ₂ and 17b ₂ connected to a voice coil bobbin (not shown) of the speaker unit SP2 are electrically connected to contact plates 16a ₂ and 16b ₂ arranged on the side surface of the support portion 11, respectively. Has been. The contact plates 16a ₂ and 16b ₂ are contact-connected to contact springs 15a and 15b at the end portions of the wires 14a and 14b electrically connected to the control unit 50. In this way, audio signals such as music reproduced by the reproduction unit 70 are transmitted as electrical signals via the control unit 50, and the wirings 14a and 14b, the contact plates 16a ₂ and 16b ₂ , and the wirings 17a ₂ and 17a ₂ via 17b _2, it is the audio output from the speaker unit SP2.

Then, after a lapse of a certain time (every set time), the control unit 50 drives the moving unit 20 of the support unit 11 so that the reference axis of the next speaker unit SP3 is set to the “reference reference of the height human body detection sensor 62b. Move to match “height”. As a result, the support portion 11 shown in FIG. 4 moves upward, the speaker unit SP3 moves to the vicinity of the head of the listener A, and accordingly, the wirings 17a ₃ and 17b electrically connected to the speaker unit SP3. ₃ and the contact plates 16a ₃ and 16b ₃ are moved up to positions where they are connected to the contact springs 15a and 15b arranged on the side surface of the support column 12, and then are electrically connected to each other. The speaker unit SP3 outputs the music reproduced by the reproducing unit 70 as a sound, and the listener A can audition the sound output from the speaker unit SP3.

  As described above, since the speaker device 10 shown in FIG. 4 includes the plurality of height human body detection sensors 62a to 62d, the optimum “height position” for the listener A regardless of the height and posture of the listener A. Can be output. In other words, in addition to the listener A being an adult or a child with a short height, it is possible to cope with various postures such as a sitting state.

  Next, a speaker device 10A shown in FIG. 5 which is another embodiment of the present invention will be described. In the present embodiment, a “reference height” for outputting sound from each speaker unit SP is provided at one position at the position of the height human body detection sensor 63 and fixed, and the height of the human body detection sensor 63 is “ “Height position” was defined as “reference height”. Inside the support column 12, as in FIG. 4, sound is output from a specific speaker unit SP via the wirings 14 a and 14 b, the contact plates 16 a and 16 b, and the wirings 17 a and 17 b, and then the other speaker units SP are sequentially turned Is moved up and down so as to reach the “reference height” of the human body detection sensor 63, and the sound output is repeated. The “reference height” of the height human body detection sensor 63 is not particularly limited and can be appropriately changed according to the situation.

  According to the present embodiment, since the height human body detection sensor 63 may be provided at one location, the manufacturing cost of the speaker device 10A can be reduced, and since the output position is constant, the order in which the speaker units SP1 to Sp4 are operated is simple. There is an advantage that a complicated operation program is not required.

  As described above, according to the embodiment shown in FIGS. 4 and 5, the speaker devices 10 and 10 </ b> A include at least one height human body sensor, and the “reference height” is determined according to the detection signal of the height human body sensor. Is set, the reference axis of each speaker unit SP is matched with this “reference height”, and each speaker unit SP is switched, and the sound is output sequentially, thereby realizing the optimum trial listening or listening comparison for the listener. .

  4 and 5, the example in which each speaker unit SP moves up and down according to the detection signal of the height human body detection sensor is disclosed. However, the embodiment of the present invention is not limited to this, and the height human body is not limited thereto. A fixed height position may be fixed in advance as a “reference height” without using a detection sensor, and switching of each speaker unit SP and sound output may be performed at this “height position” at all times. .

  Next, an example of the structure of the height human body detection sensor 62 will be described with reference to FIG. FIG. 6 is an explanatory diagram showing an example of the structure of the human body detection sensor 620. The pyroelectric infrared sensor 621 shown in FIG. 6A detects whether there is infrared light in a temperature region near the temperature of the human body in the space within the detection range based on the temperature change in the space within the detection range. Is. In addition, the ultrasonic sensor 622 shown in FIG. 6B detects an object existing in the temperature region including distance information by using ultrasonic waves. As shown in FIG. 6C, the rotary table 623 is configured such that the pyroelectric infrared sensor 621 and the ultrasonic sensor 622 are installed integrally with their detection directions aligned, and can be rotated by the operation of the actuator 623a. ing. In such a human body detection sensor 620, even if it is difficult to detect the listener A in a temperature region around the listener A where the pyroelectric infrared sensor 621 is stationary, the rotating table 623 is difficult to detect. By rotating the, the temperature difference between the listener A and the surroundings can be detected. In addition, there is no restriction | limiting in particular about rotation operation | movement of this turntable 623, You may rotate periodically for every fixed time interval. Alternatively, the human body detection sensor 620 may be used by using only the pyroelectric infrared sensor 621 shown in FIG.

  Thus, when the listener A appears in a predetermined range that can be detected by the human body detection sensor 620, the human body detection sensor 620 detects it and outputs a detection signal to the control unit 50. A signal is output to 70 and reproduced, and music or the like is output from the speaker unit SP.

  Next, the angle human body detection sensor 61 shown in FIG. 2 will be described in detail with reference to FIGS. FIG. 7 is an overall view for explaining the operation and the like of the angle human body detection sensor 61, and FIG. 8 is a cross-sectional view showing the structure of the angle human body detection sensor 61.

  As shown in FIG. 7, the angle human body detection sensor 61 is provided at the front position of the support portion 11, and is present within a predetermined range S that can be detected by the listener A (in the hatched diagram in FIG. 7). It is a human body detection sensor for determining whether or not. In the drawing, an example is shown in which the angle human body detection sensor 61 is arranged at a position that coincides with the reference axis K (broken line in the drawing) in front of each speaker unit SP. When the listener A moves outside the predetermined range S, the human body detection sensor 60 outputs a non-detection signal to the control unit 50 (or a certain time elapses without outputting a detection signal), whereby the control unit 50 Issues a playback stop command for music or the like to the playback unit 70, and stops the audio output of the selected speaker unit SP.

  When detecting the listener A, the angle human body detection sensor 61 rotates the support portion 11 to the left and right, and rotates relative to the listener A so that the reference axis of each speaker unit SP is directly facing. If there are a plurality of listeners or if the listeners themselves are moving (walking), the angle plate 90 arranged in the support portion 11 and capable of adjusting the angle in the horizontal direction is used to listen to them. The lateral spread of the sound output from the speaker unit SP is regulated so that the angle is appropriate for a person (an angle at which sound can be output to as many listeners as possible). Specifically, when there is one listener or a relatively large group, for example, the angle plate 90 is arranged so as to be parallel to the reference axis K of each speaker unit SP. If there are many listeners in a wide range, both angle plates 90 are set to a wide angle so as to cover the widest range in which those listeners are located (in extreme terms, the reference of each speaker unit SP). The angle can be adjusted (to the maximum position perpendicular to the axis K).

  Next, an example of the structure of the angle human body detection sensor 61 will be described with reference to FIG. FIG. 8A is a cross-sectional view of an angle human body detection sensor 610 using a pyroelectric infrared sensor, and FIG. 8B is a plan view.

  This angle human body detection sensor 610 includes an infrared sensor element 611 including a pyroelectric element for detecting infrared rays emitted from the human body, a concave reflecting mirror 612 that is rotatable in which the sensor element 611 is disposed near the focal position, and a sensor. The drive unit 613 rotates and moves the reflection mirror 612 back and forth with respect to the element 611. The drive unit 613 changes the rotational force of the motor to rotation and linear motion using a rack and a pinion, and drives the reflection mirror 612 fixed to the mirror table (gear). By changing the distance between the sensor element 611 and the reflection mirror 613 based on the focal position of the reflection mirror 612, rotating the reflection mirror 612 around the sensor element 611, and capturing the detection signal of the sensor element 611 at that time The location (range) and the number of listeners A are detected, and the distance from the turntable to the listener is detected.

  6 and 8 show only an example of a sensor that is a human body detection sensor, and the brightness is detected without being limited to an example in which the presence or absence of a person is detected by a human body sensor using light such as infrared rays. The presence or absence of a person can also be determined by an illuminance sensor or a sound sensor that detects the presence or absence of noise.

  Next, FIGS. 9 and 10 are examples of flowcharts of the operation of the speaker device 10 according to the embodiment of the present invention. FIG. 9 shows a flowchart of vertical movement, and FIG. 10 shows a flowchart of rotational movement.

  As illustrated in FIG. 9, the moving unit 20 moves up and down by signals from the control unit 50 through steps S1 to S6, S11 to S12, and S51.

  First, a plurality of height human body detection sensors detect the presence of a listener (S1). For example, in the speaker device 10 of FIG. 2, the height human body detection sensors 62a to 62d perform the detection operation. Simultaneously with S1, the control unit 50 outputs an ON command to the speaker relay (S11), and the audio signal output from the reproduction unit 70 is output as audio from the selected speaker unit SP (S12).

  Next, in order to detect the height of the listener's head (ear position), the control unit 50 confirms the height position of the lowest undetected sensor among the height human body detection sensors. The “reference height” is specified (S2). In FIG. 2, it is determined that the height human body detection sensors 62a and 62b have not been detected, and it is recognized that the head of the listener A is between the height human body detection sensors 62b to 62c, and the height human body detection sensor 62b. The “height position” is identified as the “reference height”.

  In S3, the control unit 50 selects the speaker unit SP that is closest to the “reference height”, and sets the reference axis of the speaker unit SP to the “height position (reference height) of S2. ) ”To move. FIG. 2 shows a case where the reference axis of the speaker unit SP2 is moved to the “height position” of the height human body detection sensor 62b.

  Thereafter, in S4, the control unit 50 issues a command signal so as to perform human body detection of all the height human body detection sensors 62a to 62d for 5 seconds. As a result, if the human body detection is maintained for 5 seconds, the process proceeds to S5. In the opposite case (for example, when the listener A moves outside the predetermined range that can be detected within 5 seconds), the height of S1 is reached. Return to human sensor detection. That is, as long as the listener A stays on the spot, the audio output from the selected speaker unit SP at a predetermined position is listened to for 5 seconds in S4.

  Next, in S5, the control unit 50 selects and specifies the next speaker unit SP to be moved to the “reference height”, and then in S6, sets the next selected speaker unit SP to the “reference height”. Move. Thereafter, the control unit 50 returns to S4 again, and the control unit 50 again outputs a command signal for detecting for 5 seconds, and the listener listens to the audio output from the second selected speaker unit SP during that time.

  The order in which the second and subsequent speaker units SP are sequentially moved to the “reference height” is not particularly limited, and is the most efficient order in which sound is continuously output to the listener A or the listener. Various movement methods, such as an order for producing a movement that is surprising to A, can be adopted.

  If the determination at S4 for 5 seconds is NO, the controller 50 performs the human body sensor detection at S1 again, and if the result of human body detection is obtained, the control unit 50 proceeds to S2 and repeats the selective driving of each speaker unit. On the contrary, if the result is that the human body has not been detected, the speaker relay in S11 is turned OFF, the sound output from the speaker unit SP at the “reference height” is stopped, and the series of up and down movement operations are completed. (END).

  Further, the speaker device 10 according to the embodiment of the present invention moves the specific speaker unit SP selected from the speaker units SP1 to SP4 up and down to the “reference height” by the automatic operation according to the intention of the listener A. The thing which can do is included. For example, the listener A wants to listen and compare only the speaker unit SP2 and the speaker unit SP4.

  These will be described with reference to FIG. 9 again. When it is desired to move the selected speaker unit SP to the “reference height”, the input operation by the input device that allows the listener A to input freely (S51). The next speaker unit SP is specified by this input operation (S5), and then the next speaker unit SP selected as “reference height” is moved up and down (S6). That is, when the listener A performs input (S51) as needed, the control unit 50 moves the speaker unit SP currently in a predetermined position up and down to move to the next speaker regardless of the operation of the speaker device 10. Commands to move up and down until the unit's reference axis matches the “reference height”.

  Accordingly, when the listener A further continues the input operation (S51), the next speaker unit SP (for example, the speaker unit SP4) is further moved up and down. Then, when the desired speaker unit SP comes to a predetermined position (front), the control unit 50 stops the motor by stopping the input operation (S51). As a result, the listener listens to the desired sound output from the speaker unit SP4. I can enjoy it. Alternatively, an input operation using an input device such as a dedicated button in which the desired speaker unit SP is directly arranged at the “reference height” may be employed.

  When the input operation (S51) from the listener is performed, the control unit 50 continues the audio output from the selected specific speaker unit SP, and performs the switching up / down operation at every set time as described above. It may be set so that the vertical movement is not performed until the next input operation (S51) from the listener A is performed.

  Thus, the control unit 50 outputs a command signal to the vertical drive unit 41, controls the vertical motor 41a, moves the moving unit 20 up and down, and arranges the desired speaker unit SP at the “reference height”. Is.

  Next, each step of the rotational movement operation (from steps S21 to S24 and S11 to S12) will be described using the flowchart of FIG. Through these steps, the rotating unit 30 performs rotational movement according to a signal from the control unit 50.

  First, the control unit 50 performs human body sensor detection that receives a detection signal for detecting the presence of the listener A from the angle human body detection sensor 61 (S21). Here, the angle plate 90 disposed on the support portion 11 may be operated according to the location of the listener in conjunction with the detection result at the time of human body detection in S21, or at a certain angle in advance. You may adjust so that it may have.

  Simultaneously with S21, the control unit 50 outputs an ON command to the speaker relay (S11), thereby outputting the audio signal from the reproduction unit 70 to the speaker unit SP currently at the “reference height” (S12). ).

  Next, in S22, the control unit 50 performs human body detection for 5 seconds. As a result, when the human body detection is maintained for 5 seconds as in S21, the process proceeds to S23, and conversely, when a human body non-detection different from S21 is detected (when the listener A moves outside a predetermined range that can be detected, etc.) ) Returns to human body sensor detection in S21.

  Thereafter, in S23, the control unit 50 rotates the rotation motor 42a of the rotation drive unit 42 so that all the speaker units SP face the listener A, and the listener A is placed on the reference axis of the speaker unit SP. The rotational movement table 32 is rotated to a position where the rotational movement base 32 exists, and then the rotational motor 42a is stopped (S24), and the rotational movement operation is completed (END).

  Thus, the control unit 50 outputs a command signal to the rotation driving unit 42, controls the rotation motor 42a, moves the rotary moving table 32 up and down, and directs the speaker unit SP in a specific direction where the listener is present. is there.

  9 and 10, the series of operations for turning on the speaker relay after the human body sensor detection (S1, S21) (S11) and reproducing the audio output and the like from the reproducing unit (S12) is a vertical movement operation. This operation is common to both the rotational movement operation and the rotational movement operation. Once the speaker relay is turned on, one of the human body detection sensors is not detected, and is continuously reproduced until the speaker relay is turned off. In addition, the operation of turning on the speaker relay in this way is not necessarily required for both the up and down movement operation and the rotation movement operation, and either one of the up and down movement operation (FIG. 9) or the rotation movement operation (FIG. 10). It may be performed after detection of the human body sensor.

  FIG. 11 is an example of a block diagram of the speaker device 10 according to the embodiment of the present invention. The control unit 50 includes a calculation processing unit 51 in the center, and includes a drive control unit 52, a reproduction control unit 53, a display control unit 54, and a speaker relay that can transmit and receive electrical signals to and from the calculation processing unit 51. Specifically, a microcomputer etc. are mentioned.

  The drive control unit 52 is electrically connected to the angle human body detection sensor 61 and the height human body detection sensor 62, receives detection signals from these human body detection sensors, and starts to operate the rotation drive unit 41 and the vertical drive unit 42. By issuing a command signal and operating the vertical motor 41a and the rotary motor 42a using a motor driver that operates both drive units, the moving unit 20 and the rotating unit 30 are operated, and the support unit 11 is moved up and down and rotated. Let

  The reproduction control unit 53 controls the speaker relay so that music reproduced from the reproduction unit 70 is appropriately output to the speaker unit SP at a predetermined position. The sound output from the selected speaker unit SP is controlled by turning these speaker relays ON / OFF. Further, the playback operation of the playback unit 70 may be directly controlled without providing a speaker relay.

  The display control unit 54 controls the display of the display unit 80 attached to any position of the main body of the speaker device 10 according to the embodiment of the present invention or separately attached to the outside. Desired data contents are selected and displayed from display data in which detailed data (for example, performance and characteristics) of each speaker unit SP is accumulated. Here, the selected data is data of a specific speaker unit SP that is currently outputting sound, and these are displayed on the display unit 80 in synchronization with the operation of placing the selected speaker unit SP at a predetermined position. Display data. In addition, there is no restriction | limiting in particular about the arrangement | positioning position of the display part 80, It should just be arrange | positioned in the position which all the listeners can see.

  Although not shown in FIG. 11, storage means such as a storage device may be arranged in connection with the reproducing unit 70 and the display unit 80 to provide various data. For example, as a storage unit connected to the playback unit 70, a memory or the like may be used so that a large number of songs requested by the listener A can be output. In such a case, it is possible to give the listener A an opportunity to compare various kinds of audio information and to give a high satisfaction. In addition, instead of the storage means, external connection means for connecting to the Internet using a telephone line or the like is provided, for example, a specific musical instrument or special artificial sound is downloaded, and a speaker selected at a predetermined position is selected. By outputting sound to the unit SP, the characteristics of each speaker unit SP can be sufficiently confirmed, and the request of the listener A can be further met. In addition, it is possible to enhance the sense of reality by introducing a system that emits airplane sounds from the upper speaker device and footsteps from the lower speaker device. Further, an input device that allows the listener to freely select the audio information and the like of these audio outputs may be provided separately.

  As described above, by using the speaker devices 10 and 10A according to the embodiment of the present invention, the moving unit 20, the rotating unit 30, the driving unit 40 (the vertical driving unit 41 and the rotational driving unit 42) around the control unit 50, The human body detection sensor 60 (the angle human body detection sensor 61, the angle human body detection sensor 62), the reproduction unit 70, the display unit 80, and the like are organically linked to provide an acoustic environment that enables the listener A to perform the best listening comparison and trial listening. At the same time, the performance and sound quality of each speaker unit SP can be easily compared.

  Next, by using a plurality of speaker devices according to the embodiment of the present invention, a speaker device audition system that is realistic for the listener is formed. These will be described in detail below with reference to FIGS.

  FIG. 12 is a diagram illustrating an example in which a plurality of speaker devices 10 according to the embodiment of the present invention are arranged in one space or one room. The figure shows a speaker device audition system 100 in which four speaker devices 10a to 10d are arranged at four corners of one space R to provide a stereo sound to a listener A.

  The speaker device audition system 100 confirms the location of the listener A existing in the space R, calculates the distances Ta to Td between the speaker devices 10a to 10d and the listener A, and controls the volume control. By providing the output controller, the stereo sound optimum for the listener A can be heard.

  FIG. 13 is an example of a flowchart showing the operation of each of the speaker units SP10a to 10d of the speaker device audition system 100 of FIG. 12, and the control unit 50 operates the system through steps S101 to S106. Hereinafter, these will be described.

  First, the listener A enters the space R, and the human body detection sensors of the speaker devices 10a to 10d detect the presence of the listener A (S101). Then, the location range of the listener detected by the angle human body detection sensor 61 is specified (S102). For example, when there are many listeners, a wide range is detected. Here, it is preferable to adjust the angle of the angle plate 90 disposed on the support portion 11 in accordance with the specified range of the listener, so that all listeners can listen to the sound.

  Next, the detection of the angle human body detection sensor 61 causes the speaker devices 10a to 10d of FIG. 12 to rotate and change the orientation so that the listener A is positioned on the reference axis of each speaker unit SP, thereby detecting the height human body. By determining the “reference height” at which the sensor 62 detects the position of the head of the listener A, the human body position of the listener A is specified (S103). Thereafter, the control unit 50 calculates the distances Ta to Td to the speaker devices 10a to 10d and the listener A (S104), and calculates the stereo sound optimal for the listener A as a result of these calculations, and outputs the sound. The controller adjusts the volume and stereo (S105). Finally, the reference axis of the selected speaker unit SP of each speaker device 10a to 10d is moved up and down so that it matches the above-mentioned “reference height” and specified. Setting is made by rotational movement in the direction, and sound is output from the selected speaker unit SP (S106). Note that the audio output controller may be separately provided outside the control unit 50, or the control unit 50 may substitute its function. The audio output controller may be manually operable.

  In addition, although each speaker apparatus 10a-10d of the audition system 100 shown in FIG. 12 demonstrated the thing by the speaker apparatus provided with both the height human body detection sensor and the angle detection sensor simultaneously, not only this but each of these speakers There is no problem even if the human body detection sensors of the devices 10a to 10d include only the height human body detection sensor or only the angle detection sensor. Alternatively, the administrator may monitor the height and angle without using any human body detection sensors such as a height human body detection sensor and an angle detection sensor, and control and change these settings.

  Thus, according to the speaker device audition system 100 of the embodiment of the present invention, each sound output controller of a plurality of speaker devices installed in one space R adjusts the volume of the sound output according to the stereo sound or the position of the listener. Do. As a result, even if the listener moves, multiple human body detection sensors move up and down and rotate according to the movement, so that the listener can always perform optimal audition using stereo sound, etc. Become.

  Then, each speaker unit SP is sequentially arranged at a specific “reference height” at each set time, and the listener can enjoy the trial listening and listening comparison of various speaker units SP1 to SP4 with stereo sound.

  As described above, the speaker device according to the embodiment of the present invention has a space-saving structure in which a plurality of speaker units SP are vertically arranged in a row, so that the speaker device is disposed in an exhibition hall or room with a limited size. Is effective, and a large number of speaker units SP can be listened to efficiently. Further, by using the speaker device according to the embodiment of the present invention for each individual user, a plurality of speaker units SP suitable for his / her preference are provided on the support unit, and by using these freely, different types of speaker units SP can be used. Can be used properly, or can be easily heard and compared, and a highly satisfying acoustic environment can be realized.

  And since the embodiment of the present invention has a moving unit that moves up and down with a plurality of height human body detection sensors and a rotating unit that enables rotational movement to the left and right, each speaker unit SP is on the reference axis Change the orientation automatically or intentionally so that the listener is present, and it is possible to accurately audition and compare multiple speaker units regardless of the height, posture, or position of the listener. Become.

  Furthermore, a plurality of speaker devices according to the embodiment of the present invention are provided in one space, and these speaker devices detect and calculate the location of the listener, the number of people, etc., so that the stereophonic sound that is realistic to the listener can be obtained. A listening environment can be provided. As a result, even when the listener is moving, the audio output from each speaker device can be auditioned and compared with a stereo sound or the like in an optimal state facing the reference axis of each speaker unit SP.

It is sectional drawing which shows the speaker apparatus of a prior art. 1 is a perspective view showing a speaker device according to an embodiment of the present invention. It is an enlarged view which shows the drive part of the speaker apparatus which concerns on embodiment of this invention. It is a perspective view which shows operation | movement of the speaker selection drive means of the speaker apparatus which concerns on embodiment of this invention. It is a perspective view which shows the speaker apparatus which concerns on other embodiment of this invention. It is a figure which shows the height human body detection sensor of the speaker apparatus which concerns on embodiment of this invention. It is a general view which shows the angle human body detection sensor of the speaker apparatus which concerns on embodiment of this invention. It is sectional drawing and the top view which show the angle human body detection sensor of the speaker apparatus which concerns on embodiment of this invention. It is an example of the flowchart which shows the vertical movement operation | movement of the speaker apparatus which concerns on embodiment of this invention. It is an example of the flowchart which shows the rotational movement operation | movement of the speaker apparatus which concerns on embodiment of this invention. It is an example of the block diagram which shows the speaker apparatus which concerns on embodiment of this invention. It is a figure which shows the speaker apparatus audition system using the speaker apparatus which concerns on embodiment of this invention. It is an example of the flowchart which shows the speaker apparatus audition system of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 10A Speaker apparatus 11 Support part 12 Support pillar 20 Moving part 30 Rotation part 40 Drive part 41 Vertical drive part 42 Rotation drive part 50 Control part 60 Human body detection sensor 61,610 Angle human body detection sensor 62,620 Height Human body detection Sensor 70 Playback unit 90 Angle plate SP1 to SP4 Speaker unit

Claims (9)

A support unit that supports the speaker units arranged vertically so that the reference axes of the plurality of speaker units are directed in the same direction;
A moving unit for moving the support unit along the arrangement direction of the speaker units;
Speaker selection for moving the moving unit so that a reference axis of one speaker unit selected from the plurality of speaker units matches a set reference height and driving the selected speaker unit And a driving means.   The speaker device according to claim 1, wherein the speaker device includes a height human body sensor, and the reference height is set in accordance with a detection signal of the height human body sensor.   The speaker device according to claim 1, further comprising: a rotation unit that rotates the support unit so that the reference axis faces a specific direction.   The said speaker apparatus is provided with an angle human body sensor, The said rotation part is operated so that the said reference axis may face a specific direction according to the detection signal of this angle human body sensor. Speaker device.   The speaker device according to claim 1, wherein the speaker selection driving unit sequentially switches the selected one speaker unit every set time.   The support part is provided with an angle plate for restricting a lateral spread of the sound output from the selected one speaker unit, and the angle plate can be adjusted in a lateral direction. The speaker device according to claim 1. A speaker device audition system in which a plurality of speaker devices according to claim 4 are arranged in one space,
The height human body sensor and the angle human body sensor detect the listener in the space to set the reference height and the specific direction of the reference axis in the plurality of speaker devices. A speaker device audition system comprising an audio output controller for outputting audio to the selected one speaker unit.   The speaker device audition system according to claim 7, wherein the sound output controller performs stereo adjustment of sound output in each speaker device.   The speaker device audition system according to claim 7 or 8, wherein the sound output controller adjusts a sound output volume of each speaker device according to the position of the listener.

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