JP6367742B2 - Information transmission system - Google Patents

Description

The present invention relates to a communication system using a wearable equipment for notifying information to the user, for example, an information transfer system for notifying information to the user by tactile stimulation.

  In recent years, with the development of information communication technology, location information services are available in various places. For example, as a position information service, a navigation technique using a position detection technique by satellite communication is becoming widespread. In addition, it uses ubiquitous sensor network technology that presents a wide range of information related to the periphery of the user's position and displays the direction and position of the real space in the environment using terminals such as IC tags and RFIDs embedded in the environment A navigation system or the like has also been proposed (Non-Patent Document 1).

  In the above-described position information service system, a technique for accurately and accurately displaying information such as direction, position, and warning in the real space to the user is indispensable. For example, a technique for indicating the correct traveling direction and directions, a technique for presenting the approaching direction of a dangerous object, a technique for indicating a direction in which attention should be paid in an emergency, and a technique for indicating the direction of a target are essential.

  As a conventional technique for presenting information such as direction, position, and warning to the user, information is presented to the user by displaying symbols and character information on the screen of a visual information output device such as a liquid crystal display. And a technique for presenting information to the user by outputting sound (see Non-Patent Document 2). In addition, with recent improvements in hardware technology and software processing technology and downsizing of devices, etc., the direction, position, warning, etc. depending on the information terminal equipment (head mounted display) that is worn on the head Has been proposed (see Non-Patent Document 3).

“Fifth Tokyo IC Tag Demonstration Experiment Committee Document”, Tokyo IC Tag Demonstration Experiment Execution Committee, November 27, 2006. “NAVITIME”, [online], Navitime Japan Co., Ltd. [searched on February 24, 2015], Internet <URL: http://corporate.navitime.co.jp/service_jp/navitime.html> "Simple HMD and its application to man navigation", Nobuo Nakajima, Teruhito Fukuoka, IPSJ Research Report. MBL, [Research Report of Mobile Computing and Ubiquitous Communication Research Group] 2008 (44), 121-124, 2008-05-15.

  By the way, the position information service system described above is often used in public places such as outdoors, buildings, and public institutions. For this reason, in recent years, there has been a demand for a technology for quietly presenting necessary information to a user in a location information service system so as not to disturb others.

  However, the above-described prior art has the following problems. That is, first, in the method of displaying information such as direction, position, and warning on the screen of a visual information output device such as a liquid crystal display, the user needs to look at the screen and restrains the user's line of sight. There is a problem of end. Second, the method of displaying information on a screen such as a liquid crystal display has a problem that it cannot be used by visually impaired persons. Thirdly, in the method using a visual information output device (terminal) such as a liquid crystal display, there is a problem that the user must hold the terminal and closes his / her hand for holding. Fourth, the method using the head mounted display has a problem that the user's view is obstructed and the surrounding situation becomes difficult to understand. Fifth, the method of notifying the user of information by voice has a problem that it takes time to present information because the user cannot understand the content of the presentation information until the user finishes listening to the voice (utterance). Sixth, the method of presenting information by voice has a problem that the voice signal propagates to the space around the user, which causes trouble for people around the user. Seventh, in the method of presenting information by voice, there is a problem that it is difficult to hear due to noise in the usage environment, and when an earphone or the like is used, there is a problem that ambient environmental sounds are difficult to hear. Eighth, the method of presenting information by voice has a problem that hearing impaired people cannot use it.

  The present invention has been made in view of the above problems, and an object of the present invention is to enable the user to be notified of necessary information without restraining the user's eyes, ears, and hands. .

The information transmission system (100) according to the present invention includes a signal generator (11) that generates a signal (19) based on input information (7) given from the outside, and a living body (6) based on the signal. A wearable device (1) having a stimulus generation unit (12) for generating a tactile stimulus for the mobile phone, a portable terminal (2) communicating with the wearable device, and installed in a predetermined area Storing coordinate information indicating a geographical position of the place, and comprising a sensor system (3) that performs wireless communication with the portable terminal, wherein the wearable device generates biological information of the biological body, mobile terminal, especially to give the position information of the portable terminal, and the coordinate information the sensor system has, the input information generated based on said biometric information to the wearable device To.

In the wearable device included in the information transmission system , the input information may include warning information (7) for notifying the living body of danger.

In the wearable device provided in the information transmission system , the warning information is information generated according to a plurality of warning levels, and the signal generation unit may generate a signal according to the warning level of the warning information.

In the wearable device included in the information transmission system , the signal generation unit may change the number of pulses per unit time of the signal according to the warning level of the warning information.

In the wearable device included in the information transmission system , the stimulus generation unit includes an insulating layer (121), an insulating member (123) formed on the insulating layer, and an insulating member (123 in plan view). ) Between the two electrodes (122A, 122B).

In the wearable device provided in the information transmission system , the insulating layer and the insulating member may be formed of insulating fibers having moisture retention, and the electrode may be formed of a mixture containing a conductive polymer and a binder resin. Good.

The information transmission system (100) includes the wearable device , the portable terminal (2) that communicates with the wearable device, and the geographical location of the place where the information transmission system is installed in a predetermined area. And a sensor system (3) that performs wireless communication with the mobile terminal, and the mobile terminal is generated based on the position information of the mobile terminal and the coordinate information of the sensor system. Input information may be provided to the wearable device .

The information transmission system further includes (4) a server that communicates with the mobile terminal via the communication network (5), and the server is connected to the mobile terminal based on the position information of the mobile terminal and the coordinate information of the sensor system. The distance to the sensor system is calculated, and notification information generated according to the calculated distance is transmitted to the mobile terminal, and the mobile terminal gives the wearable device input information including the notification information transmitted from the server. It may be.

  In the above description, as an example, constituent elements on the drawing corresponding to the constituent elements of the invention are represented by reference numerals with parentheses.

  According to the present invention, it is possible to notify a user of necessary information without restraining the user's eyes, ears, and hands.

FIG. 1 is a diagram illustrating a configuration of an information transmission system using a wearable device according to an embodiment. FIG. 2 is a diagram schematically illustrating the configuration of the wearable device according to the embodiment. FIG. 3A is a diagram schematically illustrating a cross-sectional structure of a stimulus generation unit of the wearable device according to the embodiment. FIG. 3B is a diagram schematically illustrating a planar structure of the stimulus generation unit of the wearable device according to the embodiment. FIG. 4 is a diagram illustrating a configuration of a signal generation unit of the wearable device according to the embodiment. FIG. 5 is a diagram illustrating an example of a drive signal generated by the drive signal generation circuit of the wearable device according to the embodiment. FIG. 6 is a diagram illustrating another example of the drive signal generated by the drive signal generation circuit of the wearable device according to the embodiment. FIG. 7 is a diagram illustrating still another example of the drive signal generated by the drive signal generation circuit of the wearable device according to the embodiment. FIG. 8 is a diagram for explaining a drive signal generation method for a plurality of stimulus generation units. FIG. 9 is a diagram illustrating timings of drive signals applied to the plurality of stimulus generation units 12 illustrated in FIG. FIG. 10 is a diagram illustrating a specific usage example in the information transmission system of the wearable device according to the embodiment. FIG. 11 is a diagram illustrating a processing flow of the information transmission system using the wearable device according to the embodiment. FIG. 12 is a diagram illustrating another processing flow of the information transmission system using the wearable device according to the embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<< Embodiment 1 >>
FIG. 1 is a diagram showing a configuration of an information transmission system using a wearable device according to an embodiment of the present invention.
In the information transmission system 100 shown in the figure, a mobile terminal 2 possessed by a user communicates with an external device such as a server 4 or a sensor system 3, and based on information received by the mobile terminal 2 through the communication. Necessary information is transmitted to the user by controlling the wearable device 1 worn by the user to give tactile stimulation to the user.

  The wearable device 1 is a device that applies tactile stimulation to a living body (for example, a human body) based on input information given from the mobile terminal 2. In addition, the wearable device 1 detects a biological signal such as an electrocardiogram, a heartbeat, a myoelectricity, and a respiratory wave via an electrode in contact with the living body, and outputs the detected biological signal to the portable terminal 2 or the like. The wearable device 1 may have a memory function for storing biological information based on the detected biological signal. A specific configuration of the wearable device 1 will be described later.

  The portable terminal 2 is an information processing terminal capable of communicating with the server 4 or the like via a communication network 5 such as the Internet. Examples of the portable terminal 2 include portable information devices that can be connected to the Internet, such as smartphones and tablet terminals.

  The portable terminal 2 communicates with the wearable device 1 by wire or wireless. For example, the mobile terminal 2 is connected to the wearable device 1 by low-power radio such as Bluetooth (registered trademark, the same applies hereinafter). The portable terminal 2 receives biological information from the wearable device 1 through the communication and transmits information necessary for generating a tactile stimulus to the wearable device 1.

  The portable terminal 2 is connected to the communication network 5 by wireless communication such as a cellular method or a wireless LAN method. For example, the position information of the portable terminal 2 or the biological information received from the wearable device 1 is transmitted via the communication network 5. While transmitting to the server 4, necessary information is received from the server 4 via the communication network 5.

  In addition, the mobile terminal 2 has position information indicating the geographical position of the place where the mobile terminal 2 exists. The location information may be generated by the mobile terminal 2 using, for example, a known GPS technique, or the location information is requested from the location information server or the like to which the mobile terminal 2 is connected via the communication network 5. The location information generated by the server or the like may be received by the mobile terminal 2 via the communication network 5, and the method for generating and acquiring the location information of the mobile terminal 2 is not particularly limited.

  Furthermore, the portable terminal 2 can communicate with the sensor system 3 by near field communication represented by NFC (Near Field Communication) or the like.

The sensor system 3 includes an RF tag that can read and write data without contact. The data recorded on the RF tag of the sensor system 3 is made readable and writable by the portable terminal 2 and other readers / writers by the above short-range wireless notification. The RF tag of the sensor system 3 stores coordinate information indicating the geographical position of the place where the sensor system 3 is installed.
The sensor system 3 is installed in a predetermined area. For example, they are installed on utility poles, street lamps, ground, signs, building walls, etc. in public facilities such as roads and parks, pillars, floors on train platforms, and guidance blocks for visually impaired people.

  The sensor system 3 is connected to the communication network 5 in addition to the above-described RF tag so that the server 4 can read and write information of the RF tag in the sensor system 3 via the communication network 5. A communication device may be provided.

  The server 4 communicates with the mobile terminal 2 via the communication network 5 and performs various data processing based on information received by communication. For example, the server 4 receives the position information of the mobile terminal 2 and the coordinate information of the sensor system 3 via the communication network 5, and information to be notified to the user based on the received position information and the coordinate information (hereinafter, This is called “notification information”.

  Here, the notification information is information related to the user's surrounding environment, and includes, for example, warning information for notifying the user of danger. The warning information is, for example, information indicating that the user is approaching a pedestrian crossing, information indicating that the user is approaching a track on a train platform, and the like.

  The warning information is generated according to a plurality of warning levels. Specifically, for example, the server 4 sets a warning level according to the distance between the mobile terminal 2 and the sensor system 3, and generates warning information according to the warning level. More specifically, the server 4 sets a plurality of threshold values for determining the warning level, and determines the warning level based on the relationship between the calculated distance and the threshold value. For example, the server 4 generates warning information of the first warning level if the calculated distance is within 4 m, for example, and generates warning information of the second warning level if the calculated distance is within 2 m, for example. If the calculated distance is within 0.5 m, for example, warning information of the third warning level is generated, and the warning level corresponding to the calculated distance between the mobile terminal 2 and the sensor system 3 is set. Generate warning information.

  Notification information (warning information) 7 generated by the server 4 is transmitted to the wearable device 1 via the mobile terminal 2. The wearable device 1 generates a tactile stimulus based on the received notification information 7. Hereinafter, a specific configuration of the wearable device 1 will be described.

FIG. 2 is a diagram schematically showing a configuration of wearable device 1 according to the present embodiment.
FIG. 1 illustrates the wearable device 1 that is worn by a user. A front configuration of the wearable device 1 is schematically shown on the left side of the figure, and a rear configuration of the wearable device 1 is schematically shown on the right side of the figure.

  As shown in FIG. 2, in the wearable device 1, a signal generation unit 11, a stimulus generation unit 12, and a wiring 13 are arranged on a garment 10 that can be worn by a user (living body) 6. It is constituted by. The signal generation unit 11 and the stimulus generation unit 12 are electrically connected via the wiring 13 and are arranged on the clothing 10 so as to be separated from each other.

In FIG. 2, only a part of the wirings 13 is shown for the sake of illustration, and the other wirings 13 are not shown.
In the present embodiment, as shown in FIG. 2, a shirt is exemplified as the garment 10 constituting the wearable device 1, but the garment 10 may be anything that can be worn by the user, for example, pants , Belly, supporter, band and the like.
In the present embodiment, it is assumed that the stimulus generator 12 and the wiring 13 are fixed to the clothing 10. On the other hand, the signal generation unit 11 may be fixed to the clothing 10 or may be configured to be detachable from the clothing 10. Moreover, in FIG. 2, the position on the garment 10 where the wiring 13 and the signal generation unit 11 are installed (fixed) is merely an example, and is not limited to the position shown in FIG.

First, the stimulus generator 12 will be described in detail.
The stimulus generation unit 12 is a device that generates a tactile stimulus for the living body (user) 6 based on an input signal (for example, a voltage signal). The stimulus generator 12 is formed on the contact surface of the garment 10 with the living body. For example, when the user wears the wearable device 1, the stimulus generation unit 12 is formed so as to contact the surface of the user's skin. In FIG. 2, for convenience of illustration, the stimulus generation unit 12 is illustrated as being disposed on the surface of the clothing 10 (the surface opposite to the contact surface with the living body 6).

A plurality of stimulus generators 12 are arranged on the contact surface of the garment 10 with the living body. Specifically, as shown in FIG. 2, when the user 6 wears, a plurality of stimulus generation units 12 are formed in a region other than the region around the heart of the user 6.
FIG. 3A is a diagram schematically showing a cross-sectional structure of the stimulus generator 12. FIG. 3B is a diagram schematically illustrating a planar structure of the stimulus generation unit 12.
As shown in FIG. 3A, the stimulus generator 12 is formed on the insulating layer 121 fixed to the contact surface of the garment 10 with the living body 6, the insulating member 123 formed on the insulating layer 121, and the insulating layer 121. The two electrodes 122A and 122B.

  The insulating layer 121 is formed of an insulating material having moisture retention. As an insulating material having moisture retention, a flexible polyurethane material (for example, product name: Polyflex, distributor: Polytape Co., Ltd.) can be exemplified. Further, the insulating member 123 is made of, for example, an insulating material having moisture retention similar to that of the insulating layer 121.

  The electrodes 122A and 122B are formed, for example, in a cloth shape from a conductive cloth material, specifically, a polymer composite material or silver-plated fiber. Here, the conductive polymer composite material is a mixture containing a conductive polymer and a binder resin. Examples of the conductive polymer include PEDOT-PSS and PEDOT-S, which are excellent in conductivity and hydrophilicity. Moreover, as a binder resin, a thermoplastic resin, a thermosetting resin, a photocurable resin etc. are used, for example, Nafion, a polycarbonate, polyethylene etc. can be illustrated. The silver-plated fiber is a fiber that is made conductive by depositing a silver material on a fiber such as nylon by a known technique by plating.

  The conductive polymer composite material constituting the electrodes 122A and 122B is impregnated with, for example, at least one of glycerol, an electrolyte solution, and an ionic liquid in order to reduce the combined resistance between the skin and the electrode. Is desirable.

The two electrodes 122A and 122B function as a positive electrode terminal and a negative electrode terminal of the AC voltage, and a tactile stimulus corresponding to an AC voltage (a drive signal 19 described later) applied between the two electrodes is applied to the living body 6. give.
As shown in FIG. 3B, the electrode 122A and the electrode 122B are arranged with the insulating member 123 interposed therebetween in a plan view. Thereby, it is possible to prevent the electrode 122A and the electrode 122B from being short-circuited. 3A and 3B, the electrodes 122A and 122B are not directly fixed (adhered) to the garment 10, but the electrodes 122A and 122B are fixed to the garment 10 via the insulating layer 121. Even if it is a case where the some stimulus production | generation part 12 is arrange | positioned on top, it can prevent short-circuiting between stimulus production | generation parts 12. The insulating layer 121 can function as a moisture retention layer that prevents evaporation of moisture contained in the electrodes 122A and 122B.

Next, the signal generation unit 11 will be described.
FIG. 4 is a diagram showing a configuration of the signal generation unit 11 in the wearable device 1 according to the present embodiment.
As shown in the figure, the signal generation unit 11 includes a power supply unit 14, a drive signal generation circuit 18, a communication interface unit 15, a data processing control unit 16, and a sensor unit 17.

  The power supply unit 14 includes a power supply circuit that supplies power to the communication interface unit 15, the data processing control unit 16, the sensor unit 17, and the drive signal generation circuit 18. The communication interface unit 15 is a functional unit for communicating with an external device, that is, the mobile terminal 2. For example, the communication interface unit 15 performs a process for outputting the data transmitted from the mobile terminal 2 to the data processing control unit 16 and a process for transmitting the data provided from the data processing control unit 16 to the mobile terminal 2. I do.

  The sensor unit 17 includes, for example, various sensors such as an acceleration sensor, a heart rate sensor, an electrocardiogram sensor, a myoelectric sensor, a respiration sensor, and a body temperature sensor, and the wearable device 1 is worn based on the detection results of these sensors. Biometric information of the user 6 wearing the user, information around the user, and the like are generated and output to the data processing control unit 16.

  The data processing control unit 16 is a functional unit that performs overall control of the signal generation unit 11 and is realized by a program processing device such as a CPU. For example, the data processing control 16 performs power management in the signal generation unit 11 by controlling the power supply unit 14. Further, for example, the data processing control 16 transmits the biological information supplied from the sensor unit 17, information around the user, and the like to the mobile terminal 2 via the communication interface unit 15. The portable terminal 2 performs various data processing using the received biological information and the like. For example, the mobile terminal 2 determines the user's state from measurement data derived from the user such as the position, posture, and vital information of the user 6 based on the biological information and the like supplied from the sensor unit 17 and the position information of the mobile terminal 2. And context information derived from the user is generated based on information managed by the OS of the mobile terminal 2 (for example, remaining battery capacity) or information from the outside (for example, WEB service) via the communication network 5. Also good.

  Further, the data processing control unit 16 receives the notification information (warning information) 7 transmitted from the mobile terminal 2 via the communication interface unit 15 and controls the drive signal generation circuit 18 based on the received warning information 7. As a result, a drive signal 19 for driving the stimulus generator 12 is generated.

  The drive signal generation circuit 18 generates a drive signal 19 in accordance with control by the data processing control unit 16. For example, when n (n is an integer of 2 or more) stimulus generation units 12_1 to 12_n are provided in the wearable device 1, the drive signals 19_1 to 19_n are generated for each of the stimulus generation units 12_1 to 12_n. The drive signal 19 is applied to the pair of electrodes 122A and 122B described above, and applies electrical stimulation to the human body via these electrodes. In the present embodiment, the drive signal 19 will be described as an AC voltage signal that causes electrical stimulation based on a known low-frequency treatment technique.

  As described above, the data processing control unit 16 controls the drive signal generation circuit 18 based on the notification information (warning information) 7 given from the mobile terminal 2 to generate the drive signal 19. At this time, the data processing control unit 16 controls the drive signal generation circuit 18 to generate the drive signal 19 according to the warning level of the warning information 7. Hereinafter, two methods will be exemplified as a method for generating the drive signal 19 in accordance with the warning level of the warning information 7.

The first method is to increase the number of pulses of the drive signal 19 as the warning level of the warning information 7 becomes higher.
An example of the drive signal 19 generated by the drive signal generation circuit 18 is shown in FIGS. Waveforms 201 to 202 shown in FIGS. 5 to 7 are obtained by measuring the voltages at both ends of the electrodes 122A and 122B when the drive signal 19 generated using a known low-frequency treatment technique is applied to the human body. This figure shows the case where the drive signal 19 is generated by a unit pulse signal having a voltage of ± 20 V and a frequency of 1.2 kHz.
A waveform 201 shown in FIG. 5 is a signal waveform when the unit pulse signal is applied to the living body 6. By applying the drive signal 19 having this waveform 201 to the living body 6, the living body 6 can feel a stimulus of being “struck”.
A waveform 202 shown in FIG. 6 is a signal waveform when a wave packet 202A composed of a plurality of unit pulse signals is repeatedly applied. By applying the drive signal 19 indicated by the waveform 202 to the living body 6, the living body 6 can feel a stimulus of being “bittered”.
A waveform 203 shown in FIG. 7 is a signal waveform when the wave packet 203A composed of the unit pulse signals larger than the wave packet 202A is repeatedly applied. By applying the drive signal 19 indicated by the waveform 203 to the living body 6, the living body 6 can feel a stimulus of "touching".

  For example, consider a case where there are L1, L2, and L3 (L1 <L2 <L3) as warning levels of the warning information 7. In this case, when the warning information 7 of the warning level L1 is transmitted from the portable terminal 2 (server 4), the data processing control unit 16 sends a drive signal 19 (waveform) shown in FIG. 201) and the warning information 7 of the warning level L2 is transmitted, the drive signal generation circuit 18 is caused to generate, for example, the drive signal 19 (waveform 202) shown in FIG. 6, and the warning information 7 of the warning level L3 is generated. Is transmitted, the drive signal generation circuit 18 is caused to generate, for example, the drive signal 19 (waveform 203) shown in FIG.

  In this way, by changing the number of pulses per unit time of the drive signal 19 in accordance with the warning level of the warning information 7, the strength of the tactile stimulus felt by the living body can be changed. The adjustment of the number of pulses per unit time of the drive signal 19 is not limited to the number of unit pulse signals per unit time and the duty ratio of the wave packet as shown in FIGS. This can be realized by changing the frequency of the unit pulse signal.

  The drive signal 19 described above may be applied in the same manner to all the stimulus generators 12 provided in the wearable device 1, or may be applied only to some stimulus generators 12. It may be.

The second method is to apply a drive signal 19 with a time difference to the plurality of stimulus generators 12.
FIG. 8 is a diagram for explaining a method of generating the drive signal 19 for the plurality of stimulus generators 12. FIG. 9 is a diagram illustrating timings of drive signals applied to the plurality of stimulus generation units 12 illustrated in FIG.

For example, as illustrated in FIG. 8, the drive signal 19 is sequentially applied to the plurality of stimulus generation units 12 arranged in a line. For example, as shown in FIG. 9, the drive signal 19 is applied in the order of “A”, “B”, “C” to the stimulus generation units 12 of “A”, “B”, “C” arranged in a line. Repeat applying. Similarly, the application of the drive signal 19 in the order of “D”, “E”, and “F” to the stimulus generation units 12 of “D”, “E”, and “F” arranged in a row is repeated. At this time, the drive signal 19 is applied to “A” and “D” at the same timing, the drive signal 19 is applied to “B” and “E”, and “C” and “F” are the same timing. It is assumed that the drive signal 19 is applied. In addition, it is assumed that the interval period Td of each drive signal for each stimulus generator 12 arranged in a line can be changed.
In this way, by applying the drive signal 19 sequentially to the plurality of stimulus generation units 12 arranged in a line in the vertical direction or the horizontal direction on the garment 10, a “flowing stimulus” is applied in one direction to the living body 6. Can be given to.

When the drive signal 19 corresponding to the warning level of the warning information 7 is generated by the second method, for example, the drive signal 19 is generated so that “the speed at which the stimulus flows” increases as the warning level increases. That's fine. For example, when there are L1, L2, and L3 (L1 <L2 <L3) as warning levels of the warning information 7, the data processing control unit 16 transmits the warning information 7 of the warning level L1 from the portable terminal 2 (server 4). Then, when the drive signal generation circuit 18 generates the drive signal 19 of, for example, the interval period Td = 1 second and the warning information 7 of the warning level L2 is transmitted, the drive signal generation circuit 18 receives, for example, the interval period Td = When the drive signal 19 for 0.5 seconds is generated and the warning information 7 of the warning level L3 is transmitted, the drive signal 19 for the interval period Td = 0.2 seconds is generated by the drive signal generation circuit 18, for example.
As described above, the strength of the tactile stimulus felt by the living body is changed by changing the time interval of the drive signal 19 to be sequentially applied to the plurality of stimulus generation units 12 arranged in a line in accordance with the warning level of the warning information 7. Can be changed. In this description, the example using the six stimulus generation units A to F in FIG. 9 has been described, but it goes without saying that a drive signal may be input to the living body using more stimulus generation units.

  It is also possible to generate a tactile stimulus corresponding to the warning level of the warning information 7 by combining the first method and the second method described above. For example, as in the second method, control is performed to sequentially apply the drive signal 19 to the plurality of stimulus generation units 12 arranged in a row, and each time the warning level is increased, the drive signal 19 is applied to one stimulus generation unit 12. The number of drive signals 19 per unit time or the like may be increased so as to increase the tactile stimulus to the living body. Further, each time the warning level is increased, the tactile stimulus is strengthened by the first method, and when the warning level is further increased, the “speed at which the stimulus flows” is increased by the second method. You may change the strength.

Next, a specific usage example of the wearable device 1 will be described with reference to FIGS. 10 and 11.
Here, as shown in FIG. 10, the wearable device 1 and the portable terminal 2 according to the present embodiment are placed on a train platform in which the sensor system 3 is embedded at equal intervals in a guidance block for a visually impaired person. A case where the user 6 who is wearing is standing will be described as an example.

FIG. 11 is a diagram showing a processing flow in the information transmission system using the wearable device 1 according to the present embodiment.
First, for example, when the user 6 wearing the wearable device 1 on the platform approaches the guiding block in which the sensor system 3 is embedded, the mobile terminal 2 starts communication with the sensor system 3 (S10). By this communication, the mobile terminal 2 acquires coordinate information stored in the RF tag of the sensor system 3, for example.

  Next, the mobile terminal 2 starts communication with the server 4 (S11). By this communication, the mobile terminal 2 transmits the position information of the mobile terminal 2 and the coordinate information of the sensor system 3 acquired by the communication in step S10 to the server 4.

  Next, the server 4 determines the positional relationship between the user 6 and the guidance block (S12). Specifically, the server 4 calculates the distance between the mobile terminal 2 and the sensor system 3 based on the position information of the mobile terminal 2 and the coordinate information of the sensor system 3 received by the communication in step S11. Next, the server 4 determines a warning level based on the calculated distance by the method described above (S13). At this time, if the server determines that the warning to the user is unnecessary because the calculated distance is sufficiently long, the server 4 does not transmit the warning information 7 to the portable terminal 2 and returns to step S10 again.

  On the other hand, if the server 4 determines in step S14 that a warning to the user is necessary, it generates warning information 7 of a warning level corresponding to the distance calculated in step S13 and transmits it to the portable terminal 2 (S14). The portable terminal 2 transmits the received warning information 7 to the wearable device 1 (S15). Then, the wearable device 1 generates a drive signal 19 according to the warning level of the received warning information 7 by the method described above, and gives a tactile stimulus to the user 6 (S16).

  In the above example, when the sensor system 3 can communicate with the server 4 via the communication network 5 independently, in step S11 of FIG. 4, the sensor system 3 may transmit its own coordinate information to the server 4.

  As described above, according to the wearable device 1 according to the present embodiment, it is possible to generate a tactile stimulus based on information input from the outside, which is necessary without restraining the user's eyes, ears, and hands. Information can be notified to the user.

  Further, according to the wearable device 1 according to the present embodiment, when a warning is given to the user, the drive signal 19 of the haptic stimulus generation unit 12 is generated according to the warning level of the warning information. Can be alerted according to the warning level.

  Further, according to the wearable device 1 according to the present embodiment, the number of pulses per unit time of the drive signal 19 is changed according to the warning level of the warning information 7, so that the tactile stimulus corresponding to the warning level of the warning information is obtained. Can be easily generated.

  In addition, by using the stimulus generator 12 having a structure in which the two electrodes 122A and 122B are disposed on the insulating layer 121 with the insulating member 123 interposed therebetween, it is possible to prevent the electrodes 122A and 122B from being short-circuited, It is possible to prevent the stimulus generators 12 from being short-circuited.

  Further, the insulating layer 121 and the insulating member 123 are formed of insulating fibers having moisture retention, and the electrodes 122A and 122B are formed of a mixture containing a conductive polymer and a binder resin. Since the wearing feeling can be improved by flexibility, the wearable device 1 can be continuously used by the user 6 for a long period of time.

  Further, according to the information transmission system 100 using the wearable device 1 according to the present embodiment, based on the position information of the mobile terminal 2 and the coordinate information of the sensor system 3, between the mobile terminal 2 and the sensor system 3. Since the distance is calculated and the warning level of the warning information is determined according to the calculated distance, it is easy to generate the warning information according to the warning levels in a plurality of stages.

  Although the invention made by the present inventors has been specifically described based on the embodiments, it is needless to say that the present invention is not limited thereto and can be variously modified without departing from the gist thereof. Yes.

For example, in the above-described embodiment, the server 4 calculates the distance between the mobile terminal 2 and the sensor system 3 based on the position information of the mobile terminal 2 and the coordinate information of the sensor system 3, and responds to the calculated distance. However, the mobile terminal 2 may generate the warning information 7. In this case, the information transmission system 100 may perform processing according to the flow shown in FIG. 12, for example. That is, after the portable terminal 2 receives the coordinate information from the sensor system 3 in step S10, the portable terminal 2 determines whether the portable terminal 2 and the sensor system 3 are based on their own position information and the coordinate information of the sensor system 3. The positional relationship is determined (S21). Specifically, the mobile terminal 2 calculates the distance between the mobile terminal 2 and the sensor system 3 based on the position information of the mobile terminal 2 and the coordinate information of the sensor system 3. Next, the portable terminal 2 determines a warning level based on the calculated distance by the same method as described above (S22). At this time, if it is determined that the warning is unnecessary because the calculated distance is sufficiently long, the portable terminal 2 does not generate the warning information 7 and returns to step S10 again.
On the other hand, if the portable terminal 2 determines in step S22 that a warning is necessary, warning information 7 having a warning level corresponding to the calculated distance is generated and transmitted to the wearable device 1 (S23). Then, the wearable device 1 generates a drive signal 19 according to the warning level of the received warning information 7 by the method described above, and gives a tactile stimulus to the user 6 (S16).

  Even when the mobile terminal 2 generates the warning information 7 in this way, information can be transmitted to the user via the wearable device 1.

  In the above embodiment, as a device configuration for giving a tactile stimulus to a user, a tactile stimulus is generated by the drive signal generating circuit 18 that generates an AC voltage signal based on the low frequency treatment technique as the drive signal 19 and the drive signal 19. Although the stimulus generation unit 12 having the two electrodes 122A and 122B to be generated is illustrated, another device configuration may be used as long as a tactile stimulus can be given to the user.

  In addition, the stimulus generation unit 12 has been described as having a configuration for giving a tactile stimulus to a human (human body), but it is possible to give a stimulus to the skin surface of other animals as well as a human. You may have the structure.

  Moreover, although the case where the two electrodes 122A and 122B are arranged with the insulating member 123 sandwiched in plan view is illustrated (see FIG. 3B), the present invention is not limited to this, and for example, the insulating member 123 is connected to each electrode in plan view. You may arrange | position so that 122A, 122B may be enclosed.

  In the above embodiment, the warning information for notifying the user of the danger is exemplified as the notification information 7 input to the wearable device 1. However, the information is limited to the warning information as long as the information is to be notified to the user by the tactile stimulus. I can't. For example, information that informs that the set time is approaching, such as an alarm, may be used.

  Moreover, although the said embodiment demonstrated the case where notification information was produced | generated based on the positional information on the portable terminal 2, and the coordinate information of the sensor system 3, in addition to the said positional information and the said coordinate information, the wearable apparatus 1 was demonstrated. Notification information may be generated using biometric information generated by the above. For example, when the user 6 waiting for the train on the platform is leaning forward by using the user's biological information, control such as raising the warning level of the warning information may be performed.

  DESCRIPTION OF SYMBOLS 1 ... Wearable apparatus, 2 ... Portable terminal, 3 ... Sensor system, 4 ... Server, 5 ... Communication network, 6 ... Living body (user), 7 ... Communication information (warning information), 10 ... Clothing, 11 ... Signal generation part, DESCRIPTION OF SYMBOLS 12,12_1-12_n ... Stimulus production | generation part, 13 ... Wiring, 14 ... Power supply part, 15 ... Communication interface part, 16 ... Data processing control part, 17 ... Sensor part, 18 ... Drive signal generation circuit, 19 ... Drive signal, 121 ... Insulating layer, 122A, 122B ... Electrode, 123 ... Insulating member, 401-404 ... Signal.

Claims (7)

A signal generator for generating a signal based on input information given from the outside;
A stimulus generator that generates a tactile stimulus for a living body based on the signal;
A wearable device comprising:
A portable terminal that communicates with the wearable device;
A sensor system installed in a predetermined area, storing coordinate information indicating a geographical position of the installed place, and performing wireless communication with the portable terminal;
With
The wearable device generates biological information of the living body,
The portable terminal provides the wearable device with the input information generated based on the position information of the portable terminal, the coordinate information of the sensor system, and the biological information.
An information transmission system characterized by this. The information transmission system according to claim 1,
Information transfer system wherein the input information, characterized in that it comprises a warning information for notifying the danger to the living body. The information transmission system according to claim 2,
The warning information is information generated according to a plurality of warning levels,
Information transfer system the signal generator, characterized in that to generate the signal corresponding to the warning level of the warning information. The information transmission system according to claim 3,
The signal generation unit, information transmission system characterized by varying the number of pulses per unit of the signal time according to the warning level of the warning information. In the information transmission system according to any one of claims 1 to 4,
The stimulus generator is
An insulating layer;
An insulating member formed on the insulating layer;
An information transmission system comprising: two electrodes formed on the insulating layer and arranged with the insulating member interposed therebetween in plan view. The information transmission system according to claim 5,
The insulating layer and the insulating member are formed of insulating fibers having moisture retention,
The electrodes, information transmission system characterized in that it is formed by a mixture containing a conductive polymer and a binder resin. In the information transmission system according to any one of claims 1 to 6 ,
A server that communicates with the mobile terminal via a communication network;
The server calculates a distance between the mobile terminal and the sensor system based on the position information of the mobile terminal and the coordinate information of the sensor system, and notification information generated according to the calculated distance To the mobile device,
The mobile terminal gives the input information including the notification information transmitted from the server to the wearable device.