Floor surface vibration transmission system and method

Abstract

The present invention relates to a floor surface vibration transmission system comprising a vibration recording unit that records vibration data pertaining to vibration generated on a first floor surface, and a vibration provision unit that provides the vibration data recorded by the vibration recording unit to a second floor surface positioned away from the first floor surface. The vibration recording unit includes a plurality of vibration recording units, each of the plurality of vibration recording units being disposed so as to be distributed over the first floor surface. The vibration provision unit includes a plurality of vibration provision units, each of the plurality of vibration provision units being disposed at locations on the second floor surface that correspond to the locations on the first floor surface where the vibration recording units are disposed. Each of the plurality of vibration recording units transmits the vibration data to the vibration provision unit disposed at the corresponding location, from among the plurality of vibration provision units. Each of the plurality of vibration provision units provides vibration corresponding to the transmitted vibration data to the second floor surface.

Description

Floor vibration transmission system and method

[0001] The present invention relates to a floor vibration transmission system and method for transmitting vibrations on one floor surface to another floor surface.

[0002] Conventionally, a method has been proposed in which a certain space is recorded, the recorded data is transmitted, and the space is reproduced in another space.

[0003] This method transmits and reproduces the entire space, allowing you to naturally gain awareness of distant locations through your own body.

[0004] For example, if someone is working with earplugs in, you might want to concentrate, so you might want to talk to them later, or if you see a colleague walking slowly towards you, you might want to talk about something simple about work.This makes it possible to understand each other's situations in a way that cannot be achieved through text-based communication.

[0005] However, these are limited to the visual and auditory senses, and awareness cannot be achieved when the visual and auditory senses are monopolized; for example, if you are using a PC with headphones on and someone approaches you from behind, you will not notice.

[0006] On the other hand, humans obtain information from their surroundings through other sensory organs in addition to sight and hearing, and based on this perception they recognize what is called a presence or a feeling of presence.

[0007] For example, in addition to hearing footsteps in the audible range, the vibrations caused by walking are transmitted through the floor, allowing you to notice someone moving behind you.

[0008] Japanese Patent Application Laid-Open No. 2020-131892

[0009] Yon Visell, Alvin Law, and Jeremy R. Cooperstock, “Touch Is Everywhere: Floor Surfaces as Ambient Haptic Interfaces” IEEE TRANSACTIONS ON HAPTICS, VOL. 2, NO. 3, JULY-SEPTEMBER 2009

[0010] Therefore, we considered a method to record floor vibrations (audible range + vibration) such as footsteps through the floor, transmit them to another space, and provide them as floor vibrations.

[0011] Patent Document 1 proposes a technology for providing vibrations to the feet, but this provides vibrations to the soles of the feet via a device attached to a pedal, and does not take into consideration the recording and provision of vibrations on a large floor surface.

[0012] Although there is a method for providing feedback of vibrations to the user's walking through the floor, as in Non-Patent Document 1, this method does not take into consideration recording and transmission. In addition, the board that provides the vibrations is 30 x 30 cm in size, and the vibrations are blocked at the boundary surface of the board, making it difficult for the vibrations to propagate beyond the range of the board's size (30 x 30 cm).

[0013] Furthermore, larger plates are not practical in terms of availability (standard lumber), ease of transportation, and installation costs, and it would be necessary to spread the transducers throughout the space, resulting in high expenses, management, and control costs.

[0014] The present invention has been made in view of the above circumstances, and has as its object to provide a floor vibration transmission system and method that can be implemented at low cost.

[0015] A first aspect of the present invention for achieving the above-mentioned object is a floor vibration transmission system comprising a vibration recording unit that records vibration data of vibrations generated on a first floor surface, and a vibration providing unit that provides the vibration data recorded by the vibration recording unit to a second floor surface located away from the first floor surface, wherein there are multiple vibration recording units, each of which is distributed across the first floor surface, and there are multiple vibration providing units, each of which is disposed at a location on the second floor surface corresponding to the location of the vibration recording unit on the first floor surface, and each of the multiple vibration recording units transmits vibration data to the vibration providing unit among the multiple vibration providing units that is disposed at the corresponding location, and each of the multiple vibration providing units provides vibration to the second floor surface according to the transmitted vibration data.

[0016] A second aspect of the present invention is a floor vibration transmission system of the first aspect, in which the vibration providing unit has a two-layer floor structure including a vibrator fixing layer to which a vibrator that vibrates based on vibration data is fixed, and a vibration propagation layer that propagates the vibration of the vibrator fixing layer to the second floor surface in order to propagate vibrations according to the vibration data to the second floor surface.

[0017] A third aspect of the present invention is the floor vibration transmission system of the second aspect, further comprising an output correction section that corrects individual differences in vibration output of each of the plurality of vibrators.

[0018] A fourth aspect of the present invention is a floor vibration transmission method for transmitting vibrations generated on a first floor surface to a second floor surface located away from the first floor surface, comprising: a plurality of vibration recording units, each of which records vibration data of vibrations generated on the first floor surface, disposed in a dispersed manner across the first floor surface; a plurality of vibration providing units, which provide vibrations to the second floor surface, are disposed on the second floor surface at locations corresponding to the locations where each vibration recording unit is disposed on the first floor surface; each of the plurality of vibration recording units transmits vibration data to the vibration providing unit among the plurality of vibration providing units that is disposed at the corresponding location; and each of the plurality of vibration providing units provides vibrations to the second floor surface according to the transmitted vibration data.

[0019] According to the present invention, a floor vibration transmission system and method can be realized at low cost.

[0020] FIG. 1 is a diagram for explaining the concept of floor vibration transmission in this embodiment. FIG. 2 is a block diagram showing an example of the system configuration of a floor vibration transmission system to which a floor vibration transmission method according to an embodiment of the present invention is applied. FIG. 3 is a diagram showing an example of the arrangement of a vibration recording unit on a floor surface and an arrangement of a vibration providing unit on the floor surface. FIG. 4 is a side view showing a specific hardware configuration of the vibration providing unit. FIG. 5 is a diagram schematically showing the principle by which vibrations generated by a vibrator are propagated to a floor surface. FIG. 6 is a two-dimensional output diagram for explaining the effect of correcting individual differences in the output of each vibration providing unit. FIG. 7 is a flowchart showing an example of an operation when a correction value is determined and written to a database. FIG. 8 is a flowchart showing an example of an operation when vibration data is transmitted from a recording-side device to a providing-side device.

[0021] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The drawings are schematic or conceptual, and the relationship between the thickness and width of each part, the size ratio between parts, etc., are not necessarily the same as those in reality. Furthermore, even when the same part is shown, the dimensions and ratios may be different depending on the drawing. In this specification and each drawing, elements similar to those explained in the previous drawings are given the same reference numerals, and detailed and redundant explanations will be omitted as appropriate.

[0022] FIG. 1 is a diagram for explaining the concept of floor vibration transmission in this embodiment.

[0023] In this embodiment, floor vibration transmission means, as illustrated in FIG. 1 , recording vibration data of floor vibration v generated on floor A (recording floor A) and transmitting it to floor B (hereinafter referred to as "providing floor B") located away from floor A via a communication network such as IOWN (registered trademark), thereby providing vibration V corresponding to the vibration data to a corresponding location on floor B.

[0024] To achieve this, a floor vibration transmission system to which the floor vibration transmission method according to the embodiment of the present invention is applied has a system configuration as shown in FIG.

[0025] FIG. 2 is a block diagram showing an example of the system configuration of a floor vibration transmission system to which the floor vibration transmission method according to the embodiment of the present invention is applied.

[0026] A floor vibration transmission system 10 to which the floor vibration transmission method according to the embodiment of the present invention is applied includes a recording-side device 20 and a providing-side device 30. The recording-side device 20 and the providing-side device 30 are communicably connected via a communication network 90 such as IOWN (registered trademark).

[0027] The recording device 20 includes a plurality of vibration recording units 21 , a recording management function unit 22 , and a transmission unit 23 .

[0028] FIG. 3 is a diagram showing an example of the arrangement of the vibration recording unit 21 on floor surface A and the arrangement of the vibration providing unit 40 on floor surface B.

[0029] The vibration recording units 21 are functional units that actually perform recording and can be realized by, for example, microphones, acceleration sensors, etc. The vibration recording units 21 are distributed over the entire surface of the floor surface A, as shown in Fig. 3, and record vibration data f of floor vibrations v generated on the floor surface A.

[0030] The recording management function unit 22 is a part that manages the multiple vibration recording units 21 and receives instructions from the user. If the instruction from the user is to record vibration data f, it instructs each vibration recording unit 21 to record vibration v. In response to this, it collects the vibration data f recorded by each vibration recording unit 21 and outputs it to the transmission unit 23 together with the identification information id of the vibration recording unit 21 that recorded it. On the other hand, if the instruction from the user is to stop recording the vibration data f, it terminates the operation of the floor vibration transmission system 10.

[0031] The transmission unit 23 formats the vibration data f and the identification information id recorded by each vibration recording unit 21, which are output from the recording management function unit 22, in accordance with a predetermined protocol, and transmits the formatted data to the providing device 30 via the communication network 90. ​​When transmitting the data, a unique protocol may be used, or an existing protocol such as Dante (registered trademark) may be used.

[0032] The providing side device 30 includes a receiving unit 31, a correspondence management database storage unit 32, a correspondence management function unit 33, a providing management function unit 34, a correction value database storage unit 35, an output correction unit 36, a plurality of vibration providing units 40, and a vibration measurement function unit 50.

[0033] 3, a plurality of vibration recording units 21 are disposed in a dispersed manner over the entire surface of floor surface A. Correspondingly, a plurality of vibration providing units 40 are also disposed in a dispersed manner over the entire surface of floor surface B.

[0034] The vibration providing unit 40 (#1) corresponds to the vibration recording unit 21 (#1), and is arranged at a location on floor B corresponding to the location on floor A where the vibration recording unit 21 (#1) is arranged. Similarly, the vibration providing unit 40 (#2) corresponds to the vibration recording unit 21 (#2), and is arranged at a location on floor B corresponding to the location on floor A where the vibration recording unit 21 (#2) is arranged. In this way, the vibration recording units 21 and the vibration providing units 40 have a one-to-one correspondence.

[0035] Therefore, the number of vibration providing units 40 is the same as the number of vibration recording units 21. The correspondence management database storage unit 32 stores a correspondence management database 32a that manages the correspondence between such vibration recording units 21 and vibration providing units 40. To achieve this, the correspondence management database 32a stores, for example, identification information id of the vibration recording unit 21 and identification information Id of the corresponding vibration providing unit 40 in association with each other.

[0036] 3 shows nine vibration recording units 21 (#1) to 21 (#9) and corresponding nine vibration providing units 40 (#1) to 40 (#9), this is just an example, and the number of vibration recording units 21 and vibration providing units 40 is not limited to nine. The greater the number of vibration recording units 21 and vibration providing units 40, the more accurate the vibration reproduced on the floor surface B will be, but the higher the cost will be. Conversely, if the number of vibration recording units 21 and vibration providing units 40 is reduced, the cost can be reduced, but the accuracy of the vibration reproduced on the floor surface B will be reduced.

[0037] Therefore, the number of vibration recording units 21 and vibration providing units 40 is determined from the viewpoint of the trade-off between the accuracy of vibration reproduction and the cost. Furthermore, it is preferable that the vibration recording units 21 are arranged regularly and at equal intervals, as shown in Fig. 3, but this is not limitative, and it is understood that the present invention also includes cases where the vibration recording units 21 are arranged randomly, for example.

[0038] The correspondence management database storage unit 32 stores a correspondence management database 32a that manages the correspondence between the vibration recording unit 21 and the vibration providing unit 40. Registration into the correspondence management database 32a may be performed manually by a person, or may be automated based on some method.

[0039] The receiving unit 31 receives the vibration data f and identification information id transmitted from the transmission unit 23 of the recording side device 20 via the communication network 90, parses it in accordance with a predetermined protocol, and outputs it to the provision management function unit 34.

[0040] The provision management function unit 34 receives the vibration data f and the identification information id output from the receiving unit 31. Then, the provision management function unit 34 outputs the identification information id to the association management function unit 33.

[0041] The correspondence management function unit 33 receives the identification information id output from the provision management function unit 34. Then, the correspondence management function unit 33 accesses the correspondence management database 32a stored in the correspondence management database storage unit 32, acquires the identification information Id of the vibration providing unit 40 that has a correspondence relationship with the vibration recording unit 21 of the identification information id, i.e., has a one-to-one correspondence with the vibration recording unit 21 of the identification information id, and outputs the acquired identification information Id to the provision management function unit 34.

[0042] As a result, the provision management function unit 34 collects the vibration data f, the identification information id of the vibration recording unit 21 that recorded the vibration data f, and the identification information Id of the vibration providing unit 40 that corresponds to this vibration recording unit 21.

[0043] The provision management function unit 34 can output corresponding vibration data f to the plurality of vibration provision units 40 and cause each vibration provision unit 40 to vibrate in accordance with the vibration data f. For example, the provision management function unit 34 can output vibration data f(#1) recorded by the vibration recording unit 21(#1) to the vibration provision unit 40(#1) and cause the vibration provision unit 40(#1) to vibrate in accordance with the vibration data f(#1), or output vibration data f(#2) recorded by the vibration recording unit 21(#2) to the vibration provision unit 40(#2) and cause the vibration provision unit 40(#2) to vibrate in accordance with the vibration data f(#2).

[0044] However, there are individual differences in output among the vibration providing units 40. Therefore, when vibrating each vibration providing unit 40, the providing management function unit 34 outputs not only vibration data f but also a correction value h for correcting the individual differences to each vibration providing unit 40.

[0045] Below, the individual differences in the output of each vibration providing unit 40 will be described.

[0046] FIG. 4 is a side view illustrating a specific hardware configuration of the vibration providing unit.

[0047] The vibration providing unit 40 is a functional unit that actually provides vibration and auditory information. For example, it can be realized by a combination of a vibrator and a speaker, or a tactile speaker (transducer) that simultaneously provides audible and vibration information. FIG. 4 shows a cross-sectional view including a floor surface B. The floor surface B is located on the xy plane in the figure, and the z direction in the figure represents the depth direction. In the structure illustrated in FIG. 4 , the vibration providing unit 40 is installed, for example, under the floor surface B, and is composed of a two-layer floor structure in which a vibration propagation layer 41 and a vibrator fixing layer 43 are stacked in the z direction.

[0048] The vibrator fixing layer 43 is configured by arranging a plurality of plates 44, each having a vibrator 45 fixed thereto, two-dimensionally on the xy plane in the drawing. The vibrators 45 vibrate based on vibration data f transmitted from the vibration recording unit 21.

[0049] In the example shown in Figure 4, a vibrator 45 (#1) is fixed under a plate 44 (#1), a vibrator 45 (#2) is fixed under a plate 44 (#2), and a vibrator 45 (#3) is fixed under a plate 44 (#3).

[0050] The vibration propagation layer 41 is configured by arranging a plurality of plates 42 two-dimensionally on the xy plane in the drawing. In the example shown in Fig. 4, three plates 42 (#1) to (#3) are illustrated.

[0051] In Figure 4, the plates 42 are arranged so that they are approximately divided into two equal parts on the boundary G between the two plates 44, so that the boundary g between adjacent plates 42 and the boundary G between adjacent plates 44 are not continuous in the z direction.

[0052] In the vibration providing unit 40 configured as described above, when the vibrator 45 vibrates, the plate 44 of the vibrator fixing layer 43 to which the vibrator 45 is fixed vibrates. This vibration causes the two plates 42 of the vibration propagation layer 41 disposed on the plate 44 to vibrate, and this vibration propagates to the floor surface B. The vibration of the vibrator 45 is point-like. In the example of FIG. 4 , when the vibrator 45 (#2) vibrates, the plate 44 (#2) of the vibrator fixing layer 43 to which the vibrator 45 (#2) is fixed vibrates. This vibration causes the two plates 42 (#2) and (#3) of the vibration propagation layer 41 disposed on the plate 44 to vibrate, and this vibration V propagates to the floor surface B. Note that the boundary between adjacent plates 42 may not be a linear boundary g, and in reality, there may be a small gap. Similarly, the boundary between adjacent plates 44 may not be a linear boundary G, and in reality, there may be a small gap. However, even if there is a small gap between the plates 42 and between the plates 44, the vibration V propagates to the floor surface B as described above.

[0053] FIG. 5 is a diagram schematically illustrating the principle by which vibrations caused by a vibrator propagate to a floor surface.

[0054] The vibration providing unit 40 has a two-layer floor structure as described above, and transmits the point vibration obtained by the operation of the vibrator 45 in accordance with the vibration data f to the floor surface B without being blocked by the boundary surface of the board 44, as shown in Figure 5, thereby vibrating the floor surface B in a planar manner.

[0055] Incidentally, the vibration V transmitted to the floor surface B is obtained when the vibration from the vibrator 45 passes through the plate 44 of the vibrator fixing layer 43 and the plate 42 of the vibration propagation layer 41, and is therefore affected not only by the individual differences in the vibration output of each vibrator 45, but also by the individual differences in the plates 42 and 44 through which the vibration passes along the way. For this reason, even if the same signal (for example, vibration data of the same magnitude) is given to each vibrator 45, the magnitude of the vibration that ultimately reaches the floor surface B is not necessarily the same.

[0056] FIG. 6 is a two-dimensional output diagram for explaining the effect of correcting individual differences in the output of each vibration providing unit.

[0057] FIG. 6( a ) shows that vibrations are not uniform on the floor surface B even though signals of the same magnitude (for example, vibration data f of the same magnitude) are given to each vibrator 45 .

[0058] For this reason, when vibration data f of the same magnitude is given to each vibrator 45, it is necessary to know in advance the correction value h that will make the vibration on the floor surface B uniform.

[0059] To determine the correction value h, the output correction unit 36 ​​instructs the provision management function unit 34 to provide measurement data, and also instructs the vibration measurement function unit 50 to perform measurement.

[0060] In response to this, the provision management function unit 34 outputs the measurement data to each vibration provision unit 40 .

[0061] When the same measurement data is given to each vibrator 45, the vibration measurement function unit 50 measures the vibration output obtained from each vibrator 45 and outputs the measurement result k to the output correction unit 36. The vibration measurement function unit 50 can be realized by, for example, a vibration measuring device that measures acceleration.

[0062] The output correction unit 36 ​​determines a correction value h for each vibration provider 40 based on the measurement result k from the vibration measurement function unit 50, and writes the determined correction value h to the correction value database 35 a, thereby constructing and updating the correction value database 35 a. For example, the correction value h may be a relative value obtained by normalizing the measurement result k, or may be a correction value h that is determined interactively based on the measurement result k obtained while changing the output of the vibration provider 40.

[0063] In this way, the correction value h is stored in the correction value database 35a stored in the correction value database storage unit 35. The correction value h is unique for each vibration provider 40. For example, as illustrated in Fig. 3, if nine vibration providers 40 (#1) to (#9) are provided, the correction value database 35a stores nine correction values ​​h (#1) to (#9) for each of the nine vibration providers 40 (#1) to (#9).

[0064] The provision management function unit 34 accesses the correction value database 35a stored in the correction value database storage unit 35 to acquire the correction values ​​h(#1) to (#9). When vibrating each vibration providing unit 40, the provision management function unit 34 outputs the correction value h in addition to the vibration data f to each vibration providing unit 40. For example, the provision management function unit 34 outputs the vibration data f(#1) and the correction value h(#1) to the vibration providing unit 40(#1), ..., and outputs the vibration data f(#9) and the correction value h(#9) to the vibration providing unit 40(#9).

[0065] By the provision management function unit 34 outputting the correction value h in addition to the vibration data f, the individual differences in the output of each vibration provision unit 40 are corrected, and as illustrated in Figure 6 (b), when signals of the same magnitude (e.g., vibration data f of the same magnitude) are given to each vibrator 45, the vibration on the floor surface B becomes uniform.

[0066] In this way, the floor vibration transmission system 10 to which the floor vibration transmission method according to an embodiment of the present invention is applied can reproduce vibration V corresponding to floor vibration v generated on floor surface A on floor surface B with high accuracy.

[0067] Next, an example of the operation of the floor vibration transmission system to which the floor vibration transmission method according to the embodiment of the present invention configured as described above is applied will be described.

[0068] As described above, in the floor vibration transmission system 10 to which the floor vibration transmission method according to an embodiment of the present invention is applied, it is necessary to determine in advance a correction value h for correcting the individual differences in the output of each vibration providing unit 40 and write the correction value h to the correction value database 35a.

[0069] Therefore, first, an operation for determining a correction value h for correcting individual differences in the output of each vibration providing unit 40 and writing the correction value h to the correction value database 35a will be described.

[0070] FIG. 7 is a flowchart showing an example of an operation for determining a correction value h for correcting individual differences in the output of each vibration providing unit 40 and writing the correction value h into the correction value database 35a.

[0071] To determine the correction value h, the output correction unit 36 ​​commands the provision management function unit 34 to provide measurement data (S1).

[0072] The output correction unit 36 ​​commands the vibration measurement function unit 50 to perform measurement (S2).

[0073] The provision management function unit 34 outputs the measurement data to each vibration provision unit 40 (S3).

[0074] When the measurement data is output from the provision management function unit 34 to each vibration provision unit 40, each vibration provision unit 40 vibrates in accordance with the output measurement data. The vibration measurement function unit 50 measures the output of the vibration provision unit 40, i.e., the vibration output obtained from each vibrator 45, and outputs the measurement result k to the output correction unit 36 ​​(S4).

[0075] The output correction unit 36 ​​determines a correction value h for each vibration provider 40 based on the measurement result k from the vibration measurement function unit 50, and writes each determined correction value h to the correction value database 35a in association with the identification information Id of the corresponding vibration provider 40 (S5). This completes the writing of the correction value h to the correction value database 35a.

[0076] Next, an operation when transmitting vibration data f from the recording device 20 to the providing device 30 will be described.

[0077] FIG. 8 is a flowchart showing an example of an operation when the vibration data f is transmitted from the recording device 20 to the providing device 30. In FIG.

[0078] First, the recording management function unit 22 instructs each vibration recording unit 21 to record vibration v (S11).

[0079] In response to this instruction, each vibration recording unit 21 records the vibration v and outputs the recorded data f to the recording management function unit 22. In response to this, the recording management function unit 22 outputs the recorded data f from each vibration recording unit 21 together with the identification information id of the vibration recording unit 21 that recorded it to the transmission unit 23 (S12).

[0080] The transmission unit 23 formats the recorded data f and the identification information id in accordance with a predetermined protocol and transmits them to the provider device 30 (S13).

[0081] The recording data f and the identification information id transmitted in step S13 are received by the receiving unit 31. The receiving unit 31 then parses the received recording data f and the identification information id in accordance with a predetermined protocol and outputs them to the provision management function unit 34 (S14).

[0082] In response to this, the provision management function unit 34 outputs the recorded data f to be provided to each vibration provision unit 40 based on the recorded data f, the identification information id, the correspondence obtained from the correspondence management function unit 33, and the correction value h obtained from the correction value database 35a (S15).

[0083] Then, the vibration providing unit 40 operates in accordance with the recorded data f output in step S15 (S16), whereby the vibration on the floor surface A is transmitted to the floor surface B.

[0084] If the recording management function unit 22 receives an instruction to stop recording from the user (S17: Yes), this operation ends; if not (S17: No), the process returns to step S11, and this operation is repeated.

[0085] As described above, according to the floor vibration transmission system to which the floor vibration transmission method of this embodiment is applied, vibration data of floor vibration v generated on floor A is recorded and transmitted to floor B located away from floor A, thereby making it possible to provide vibration V corresponding to the vibration data to a corresponding location on floor B. This makes it possible for multiple people to experience vibrations at the same time without having to wear a device on their bodies. Therefore, the system can be applied, for example, to VR videos, games, and an inclusive information provision device.

[0086] Generally, when implementing this type of technology, it is often necessary to build a large-scale floor vibration providing device, which is quite costly. However, with the floor vibration transmission system to which the floor vibration transmission method according to this embodiment is applied, the number of associated parts can be reduced by utilizing a floor structure and vibrators that can be constructed using standard lumber, which enables significant cost reductions in terms of material volume, management, and control.

[0087] Furthermore, the present invention is not limited to the above-described embodiments, and the components can be modified and embodied in practice without departing from the spirit of the invention. Furthermore, various inventions can be formed by appropriately combining multiple components disclosed in the above-described embodiments. For example, some components may be omitted from all the components shown in the embodiments. Furthermore, components from different embodiments may be appropriately combined.

[0088] 10 Floor vibration transmission system 20 Recording side device 21 Vibration recording section 22 Recording management function section 23 Transmission section 30 Providing side device 31 Receiving section 32 Correspondence management database storage section 32a Correspondence management database 33 Correspondence management function section 34 Providing management function section 35 Correction value database storage section 35a Correction value database 36 Output correction section 40 Vibration providing section 41 Vibration propagation layer 42 Plate 43 Vibrator fixing layer 44 Plate 45 Vibrator 50 Vibration measurement function section 90 Communication network A Recording side floor surface B Providing side floor surface f Vibration data g Boundary G Boundary h Correction value id Identification information of vibration recording section Id Identification information of vibration providing section k Measurement result v Vibration V Vibration

Claims

1. A floor vibration transmission system comprising: a vibration recording unit that records vibration data of vibrations generated on a first floor surface; and a vibration providing unit that provides the vibration data recorded by the vibration recording unit to a second floor surface located away from the first floor surface; there are multiple vibration recording units, each of which is distributed across the first floor surface; there are multiple vibration providing units, each of which is disposed at a location on the second floor surface corresponding to a location on the first floor surface where the vibration recording unit is disposed; each of the multiple vibration recording units transmits the vibration data to a vibration providing unit among the multiple vibration providing units that is disposed at a corresponding location; and each of the multiple vibration providing units provides vibration to the second floor surface according to the transmitted vibration data.

2. The floor vibration transmission system of claim 1, wherein the vibration providing unit has a two-layer floor structure including a vibrator fixing layer to which a vibrator that vibrates based on the vibration data is fixed in order to propagate vibrations according to the vibration data to the second floor surface, and a vibration propagation layer that propagates the vibrations of the vibrator fixing layer to the second floor surface.

3. A floor vibration transmission system according to claim 2, further comprising an output correction section for correcting individual differences in vibration output of each of the plurality of vibrators.

4. A floor vibration transmission method for transmitting vibrations generated on a first floor surface to a second floor surface located away from the first floor surface, comprising: distributing a plurality of vibration recording units across the first floor surface, each recording vibration data of vibrations generated on the first floor surface; arranging a plurality of vibration providing units that provide vibrations to the second floor surface at locations on the second floor surface corresponding to the locations on the first floor surface where each vibration recording unit is located; each of the plurality of vibration recording units transmits the vibration data to the vibration providing unit among the plurality of vibration providing units that is located at the corresponding location; and each of the plurality of vibration providing units provides vibrations to the second floor surface according to the transmitted vibration data.

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