JP7401281B2 - Information transmission device and program - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Act ▲1▼ Publication date: March 1, 2019 Publication: Japan Society for Precision Engineering 2019 Spring Conference Proceedings, G34, p. 484-p. 485, Published by the Japan Society for Precision Engineering ▲2▼Date: March 14, 2019 Meeting name and venue: Japan Society for Precision Engineering 2019 Spring Conference (Sponsored by the Japan Society for Precision Engineering) Tokyo Denki University, Tokyo Senju Campus Building 2, 7F Room G (5 Senju Asahi-cho, Adachi-ku, Tokyo) ▲3▼Publication date: September 11, 2020 Publication: The SICE Annual Conference 2019 Proceedings, ThAPo06.4, p. 993-p. 996, Published by the Society of Instrument and Control Engineers, a public interest incorporated association ▲4▼Date: September 12, 2020 Meeting name and venue: The SICE Annual Conference 2019 (Sponsored by the Society of Instrument and Control Engineers, a public interest incorporated association) Hiroshima University, National University Corporation Higashi-Senda Future Creation Center (1-1-89 Higashi-Senda-cho, Naka-ku, Hiroshima City, Hiroshima Prefecture)

The present invention relates to an information transmission device and a program.

Conventionally, a device has been disclosed that transmits information by applying a specific pattern of electrical stimulation to the skin according to the content of the information to be transmitted (for example, Patent Document 1).

Japanese Patent Application Publication No. 2005-91622

However, according to the conventional technology described in Patent Document 1 mentioned above, considerable training is required to understand the correspondence between the electrical stimulation pattern and the information to be transmitted. There was a problem in that it was necessary to concentrate on the electrical stimulation in order to read the information content from the electrical stimulation. That is, the conventional technology has a problem in that when information to be transmitted is transmitted without visual or auditory means, the information cannot be transmitted intuitively.

One aspect of the present invention includes a stage information acquisition unit that acquires stage information indicating a stage of a transmission target, a plurality of stages of a stimulation cycle, and a plurality of stages of stimulation intensity as parameters, and the stage of the stimulation intensity is set as parameters. a first combination that indicates a change in the stage of the transmission target by fixing the stage of the stimulation cycle and changing the stage of the stimulation cycle; the parameter combination information of the combination corresponding to the stage information acquired by the stage information acquisition unit from a storage unit that stores parameter combination information including a second combination indicating a change in the stage of the transmission target; a combination information acquisition section; a waveform generation section that generates a stimulation waveform based on the parameter combination information acquired by the combination information acquisition section; and a stimulation current based on the stimulation waveform generated by the waveform generation section, which is applied to the wearer's skin. This is an information transmission device including a stimulation electrode that provides stimulation.

Further, in one aspect of the present invention, in the above-mentioned information transmission device, in the parameter combination information, one stage of one parameter is associated with two or more types and three or less types of stages of the other parameter. including combinations .

Further, in one aspect of the present invention, in the above-mentioned information transmission device, the period of the highest stage of the stages of the stimulation cycle in the parameter combination information is shorter than the shortest cycle in a range of possible pulse cycles of the living body. It also has a short period.

Further, in one aspect of the present invention, in the above-mentioned information transmission device, the period of the highest stage of the stages of the stimulation cycle in the parameter combination information is the shortest cycle within the range of the pulse cycle of the living body. The period is longer than half the period.

Further, in one aspect of the present invention, in the above-mentioned information transmission device, the period of the lowest stage of the stages of the stimulation cycle in the parameter combination information is longer than the longest cycle of the range of pulse cycles of the living body. It also has a long cycle.

Further, in one aspect of the present invention, in the above-mentioned information transmission device, the period of the lowest stage of the stages of the stimulation cycle in the parameter combination information is the longest cycle within the range of pulse cycles of the living body. The period is shorter than twice the period.

Further, in one aspect of the present invention, in the above-mentioned information transmission device, in the parameter combination information, a stimulation cycle stage and a stimulation intensity stage are determined in response to a monotonous change in the stage of the transmission target indicated by the stage information. At least one of the parameters changes monotonically.

One aspect of the present invention includes, in a computer, a stage information acquisition step of acquiring stage information indicating a stage to be transmitted, a plurality of stages of a stimulation cycle, and a plurality of stages of stimulation intensity as parameters, and the stimulation intensity a first combination that indicates a change in the stage of the transmission target by fixing the stage of the stimulation cycle and changing the stage of the stimulation cycle; and a first combination in which the stage of the stimulation cycle is fixed and the stage of the stimulation intensity is changed. a second combination indicating a change in the stage of the transmission target; and a second combination indicating a change in the stage of the transmission target. This is a program for executing a combination information acquisition step of acquiring information, and a stimulation step of applying a stimulation current having a waveform based on the parameter combination information acquired in the combination information acquisition step to the wearer's skin.

According to the present invention, it is possible to provide an information transmitting device and a program that can both transmit information to be transmitted without visual or auditory means and transmit information intuitively.

1 is a diagram illustrating an example of an external configuration of an information transmission device according to a first embodiment; FIG. FIG. 2 is a diagram showing an example of the external configuration of a stimulation electrode according to the present embodiment. FIG. 1 is a diagram illustrating an example of a functional configuration of an information transmission device according to an embodiment. It is a figure showing an example of stage information of this embodiment. It is a figure showing an example of parameter combination information of this embodiment. FIG. 3 is a diagram illustrating an example of the operation of the information transmission device according to the present embodiment. FIG. 3 is a diagram showing an example of a stimulation waveform generated by the waveform generation unit of the present embodiment. It is a figure which shows the modification of the stimulation waveform produced|generated by the waveform generation part of this embodiment. It is a figure which shows an example of an accelerated pulse wave waveform. FIG. 3 is a diagram showing an example of a period of a stimulation waveform according to the present embodiment. It is a figure which shows the modification of parameter combination information of this embodiment.

Hereinafter, embodiments will be described with reference to the drawings.
FIG. 1 is a diagram showing an example of the external configuration of an information transmission device 1 according to the present embodiment.

As shown in FIG. 1, the information transmission device 1 is configured as, for example, a wristwatch-type device that is worn around the wrist. The information transmission device 1 includes a display section DP, an operation section TP, an environmental sensor SS, a biological sensor MS, a band WB, a stimulation electrode E, and a control section 10.
Note that the illustrated shape is just an example, and the information transmission device 1 may be configured in other shapes.

The display unit DP includes a liquid crystal display and displays information such as characters and images.
The operation unit TP includes a touch panel and the like, and detects operations by the wearer U.
The environment sensor SS detects the state of the environment surrounding the information transmission device 1 . The surrounding environment to be detected includes, for example, temperature, humidity, amount of solar radiation, amount of precipitation, and illuminance. The environmental sensor SS outputs the detected result to the control unit 10 as surrounding situation information SR.
The biosensor MS detects biometric information of the wearer U. The biological information to be detected includes, for example, body temperature (eg, skin temperature), blood pressure, amount of perspiration, heart rate, pulse wave, electroencephalogram, myoelectric potential, and the like. The biological sensor MS outputs the detected result to the control unit 10 as biological information BM.
The band WB is wrapped around the wrist of the wearer U to bring the stimulation electrode E into contact with the wrist of the wearer U.

FIG. 2 is a diagram showing an example of the external configuration of the stimulation electrode E according to this embodiment. The stimulation electrode E includes a positive electrode E1 and a negative electrode E2. The stimulation electrode E applies a stimulation current SC to the skin of the person U wearing the information transmission device 1 using the positive electrode E1 and the negative electrode E2 as a stimulation electrode pair.
Note that the information transmission device 1 may include a plurality of stimulation electrodes E as shown in FIG.

FIG. 3 is a diagram showing an example of the functional configuration of the information transmission device 1 according to the present embodiment. The information transmission device 1 includes a storage section MR in addition to the above-mentioned control section 10, stimulation electrode E, environmental sensor SS, and biological sensor MS.

The control unit 10 includes a stage information acquisition unit 110, a combination information acquisition unit 120, a waveform generation unit 130, and a stage information generation unit 140.
The stage information generation unit 140 generates the stage information DL based on the surrounding situation information SR output from the environmental sensor SS and the biological information BM output from the biological sensor MS. The stage information DL indicates the stage of the transmission target. In this example, the subject to be communicated is, for example, the risk of heatstroke.

FIG. 4 is a diagram showing an example of stage information DL of this embodiment. In this example, the stage information DL is information indicating the wearer U's heat stroke risk level LV in six levels from risk level LV0 (zero) to risk level LV5. The risk level LV is determined based on a combination of an environmental index (eg, heat index) and a physical index of the wearer U (eg, core body temperature).

Furthermore, the stage information generation unit 140 may generate the stage information DL by calculating an index (eg, heat index WBGT) based on a heat index calculation formula. The heat index WBGT is calculated based on equation (1).

WBGT=0.7×WB+0.2×TG+0.1×TA...(1)
Here, WBGT: heat index, WB: wet bulb temperature, TG: black bulb temperature, TA: dry bulb temperature (air temperature).
Note that WB: wet bulb temperature may be calculated based on a psychrometric diagram.

Returning to FIG. 3, the surrounding situation information SR output from the environmental sensor SS includes temperature information, humidity information, illuminance information, and the like. The biological information BM output from the biological sensor MS includes body temperature information, pulse information, perspiration information, acceleration information, and the like.
The stage information generation unit 140 generates information based on multiple pieces of information such as temperature information included in the surrounding situation information SR, multiple pieces of information such as body temperature information included in the biological information BM, and the criteria for determining the degree of risk LV shown in FIG. Then, stage information DL is generated. For example, when the heat index is 30°C and the core body temperature is 36.0°C, the stage information generation unit 140 determines that the risk level LV is level 2, and the level 2 stage information Generate DL. Further, for example, when the heat index is 31°C and the core body temperature is 38.0°C, the stage information generation unit 140 determines that the risk level LV is level 4, and the level 4 Generate stage information DL.
The stage information generation unit 140 outputs the generated stage information DL to the stage information acquisition unit 110.

Note that in this embodiment, the stage information generation unit 140 will be described as generating stage information DL based on the outputs of various sensors included in the information transmission device 1 (for example, surrounding situation information SR and biological information BM); It is not limited to this. For example, the stage information generation unit 140 may generate the stage information DL based on the transmission target information D supplied from an external device (for example, the information supply device 20).
In this modification, the information transmission device 1 is supplied with the transmission target information D from the information supply device 20 . This information supply device 20 is, for example, a server device of a weather information service company. The information supply device 20 supplies various types of weather information as transmission target information D. In this example, the transmission target information D includes the temperature, humidity, solar radiation, precipitation, etc. at the location of the information transmission device 1. Note that each value indicated by the transmission target information D may be a current or past actual measured value, or may be a future predicted value.
In this example, when it is determined that the weather conditions at the location of the information transmission device 1 are dangerous for the wearer U of the information transmission device 1 (for example, the wearer U suffers from heatstroke), the information supply device 20 (when the temperature is abnormally high and humid enough to cause symptoms), the transmission target information D is output.
Note that the information supply device 20 may be a device that supplies disaster information such as earthquakes, typhoons, tsunamis, floods, and eruptions. For example, when members of a rescue unit such as a rescue team are wearing the information transmitting device 1, the information transmitting device 1 can inform the members of the degree of danger surrounding the disaster site (e.g. secondary information due to gas concentration, oxygen concentration, etc.). Disaster risk) is transmitted as the target information D.

In addition, in this embodiment, the information transmission device 1 is provided with the stage information generating section 140, and the stage information generating section 140 generates the stage information DL. However, the present invention is not limited to this. For example, the information supply device 20 may generate the stage information DL and supply the generated stage information DL to the information transmission device 1. Specifically, the information supply device 20 outputs to the information transmission device 1 stage information DL indicating the risk level LV of the wearer U in six levels from risk level LV0 (zero) to risk level LV5. In the case of this modification, the information transmission device 1 does not need to include the stage information generation section 140.
Further, the information supply device 20 may be configured not to output the level information DL when the level of risk LV is the level of risk LV0, or may be configured to output the level information DL indicating the level of risk LV0. You can.

The description of the control unit 10 will be continued again. The stage information acquisition section 110 acquires the stage information DL output by the stage information generation section 140. This stage information DL is information indicating the stage of the transmission target (for example, the stage of risk of heatstroke). That is, the stage information acquisition unit 110 acquires stage information DL indicating the stage of the transmission target. The stage information acquisition unit 110 outputs the acquired stage information DL to the combination information acquisition unit 120.

The combination information acquisition unit 120 acquires parameter combination information P from the storage unit MR. Here, an example of the parameter combination information P stored in the storage unit MR will be explained with reference to FIG. 5.

FIG. 5 is a diagram showing an example of parameter combination information P according to this embodiment. The parameter combination information P is information including the stages of the stimulation cycle SP and the stages of the stimulation intensity SI as parameters. In the storage unit MR, a combination of a stimulation period SP and a stimulation intensity SI indicating the level of risk is stored as parameter combination information P.
In the example shown in the figure, in the parameter combination information P, the horizontal axis indicates the stage of the stimulation period SP, and the vertical axis indicates the stage of the stimulation intensity SI. The stimulation period SP is divided into four stages, period T1 to period T4. The stimulation intensity SI is divided into four levels, intensity 1 to intensity 4.

More specifically, in the parameter combination information P, the period T1 of the stimulation period SP and the intensity 1 of the stimulation intensity SI are combined as a combination of parameters indicating the degree of risk LV1 (level 1). As a combination of parameters indicating the risk level LV2 (level 2), the period T2 of the stimulation period SP and the intensity 1 of the stimulation intensity SI are combined. As a combination of parameters indicating the risk level LV3 (level 3), the period T3 of the stimulation period SP and the intensity 1 of the stimulation intensity SI are combined. That is, the stimulation intensity SI for the risk levels LV1 to LV3 is all intensity 1. Differences between the risk levels LV1 to LV3 are not distinguished by the stimulation intensity SI. Differences between the risk levels LV1 to LV3 are distinguished by differences in stimulation periods SP.

Further, in the parameter combination information P, the period T3 of the stimulation period SP and the intensity 2 of the stimulation intensity SI are combined as a combination of parameters indicating the degree of risk LV4 (level 4). As a combination of parameters indicating the risk level LV5 (level 5), the period T4 of the stimulation period SP and the intensity 2 of the stimulation intensity SI are combined. That is, the stimulation intensity SI for the risk levels LV4 to LV5 is all intensity 2. Differences between the risk levels LV4 and LV5 are not distinguished by the stimulation intensity SI. Differences between risk levels LV4 and LV5 are distinguished by differences in stimulation periods SP.

In this example, the stimulation intensities SI for the risk levels LV1 to LV3 are all intensity 1, and the stimulation intensities SI for the risk levels LV4 to LV5 are all intensity 2. Therefore, whether the level of risk is LV1 to LV3 or LV4 to LV5 is distinguished by the intensity of stimulation intensity SI.

Generally, for example, a combination of parameters to indicate five levels of risk LV (risk levels LV1 to LV5) includes one level of one parameter (for example, intensity 1 of stimulation intensity SI) and five types of the other parameter. It is also conceivable to combine the stages (for example, periods T1 to T5 of the stimulation period SP).

On the other hand, in the parameter combination information P of the present embodiment, as a combination of parameters for indicating five levels of risk LV, one level of one parameter (for example, intensity 1 of stimulation intensity SI) and the other parameter are combined. A combination of five types of stages (for example, cycles T1 to T5 of the stimulation cycle SP) is not adopted.
The parameter combination information P of this embodiment includes the stages of the stimulation cycle SP and the stages of the stimulation intensity SI as parameters, and for one stage of one parameter (for example, the stimulation intensity SI), the other parameter (for example, the stimulation intensity SI) is For example, four or less stages of the stimulation period SP) are combined.

Note that, as shown in FIG. 5, the parameter combination information P of this embodiment is configured such that one stage of one parameter is associated with three or less stages of the other parameter. Good too.

Returning to FIG. 3, the combination information acquisition unit 120 acquires the parameter combination information P of the combination corresponding to the stage information DL acquired by the stage information acquisition unit 110, from among the parameter combination information P stored in the storage unit MR. .
For example, when the stage information DL indicates the risk level LV3 (level 3), the combination information acquisition unit 120 obtains a combination (stimulation intensity SI is intensity 1, stimulation period SP is period T3) corresponding to the risk level LV3 (level 3). The parameter combination information P is obtained.
In another example, when the stage information DL indicates the risk level LV5 (level 5), the combination information acquisition unit 120 acquires a combination (stimulation intensity SI is intensity 2, stimulation period SP obtains parameter combination information P with period T4).
The combination information acquisition unit 120 outputs the acquired parameter combination information P to the waveform generation unit 130.

The waveform generation unit 130 generates a stimulation waveform SW based on the parameter combination information P acquired by the combination information acquisition unit 120.
For example, in the case of parameter combination information P in which the stimulation intensity SI is intensity 1 and the stimulation period SP is period T3, the waveform generation unit 130 generates a waveform that has a peak value of intensity 1 and a period of period T3 (for example, 300 ms). A stimulus waveform SW is generated.

In addition, although the stimulation intensity SI will be described as a value indicating the maximum value of the intensity of the rectangular pulses forming the stimulation waveform SW, it is not limited to this. For example, the stimulation intensity SI may be a value indicating an area obtained by time-integrating the intensity of a rectangular pulse forming the stimulation waveform SW.

Further, the waveform generation unit 130 may generate a stimulation waveform SW having a predetermined periodic pattern according to physiological phenomena of the living body. The predetermined periodic pattern according to the physiological phenomenon of a living body includes, for example, a pulsation periodic pattern.
The waveform generation unit 130 outputs the generated stimulation waveform SW to the stimulation electrode E.

The stimulation electrode E provides the skin of the wearer U with a stimulation current SC based on the stimulation waveform SW generated by the waveform generation unit 130.

[Operation of information transmission device 1]
Next, an example of the operation of the information transmission device 1 of this embodiment will be described with reference to FIG. 6.
FIG. 6 is a diagram showing an example of the operation of the information transmission device 1 of this embodiment.

(Step S10) The stage information acquisition unit 110 acquires the stage information DL. In this example, the stage information DL includes information indicating the risk level LV of heatstroke. The stage information acquisition unit 110 outputs the acquired stage information DL to the combination information acquisition unit 120.
(Step S20) The control unit 10 determines the degree of risk LV indicated by the stage information DL. When the control unit 10 determines that the risk level LV indicated by the stage information DL is the risk level LV0 (step S20; risk level LV0), the control unit 10 advances the process to step S30. When the control unit 10 determines that the risk level LV indicated by the stage information DL is the risk level LV1 to 5 (step S20; risk level LV1 to 5), the process proceeds to step S40.

(Step S30) The control unit 10 ends the process without outputting the stimulation waveform SW to the stimulation electrode E. As a result, the stimulation electrode E does not output the stimulation current SC.

(Step S40) The combination information acquisition unit 120 selects a combination of parameters according to the stage information DL acquired in step S10. Specifically, when the risk level LV indicated by the stage information DL acquired in step S10 is the risk level LV1, the combination information acquisition unit 120 sets the stimulation intensity SI to intensity 1 and the stimulation period SP to period T1 (for example, 1200ms) is obtained from the storage unit MR. The combination information acquisition unit 120 outputs the acquired parameter combination information P to the waveform generation unit 130.

(Step S50) The waveform generation unit 130 generates a stimulation waveform SW according to the combination of parameters selected in step S40 (that is, a stimulation waveform SW according to the risk level LV). In the above example, the waveform generation unit 130 generates a stimulation waveform SW having a stimulation intensity SI of intensity 1 and a stimulation period SP of period T1 (for example, 1200 ms). A modification of the stimulation waveform SW generated by the waveform generation unit 130 will be described with reference to FIG. 7.

FIG. 7 is a diagram showing an example of the stimulation waveform SW generated by the waveform generation unit 130 of this embodiment. The waveform generation unit 130 generates the stimulation waveform SW by changing the period T and intensity of the rectangular pulse in steps. As an example shown in FIG. 7, the waveform generation unit 130 generates a stimulation waveform SW of a rectangular pulse with a period T and an intensity of 2.

Note that the stimulation waveform SW may have various modifications. A modified example of the stimulation waveform SW generated by the waveform generation unit 130 will be described with reference to FIG. 8.

FIG. 8 is a diagram showing a modified example of the stimulation waveform SW generated by the waveform generation unit 130 of this embodiment. The waveform generation unit 130 generates a stimulation waveform SW by setting the time interval between stimulation waveforms SW adjacent on the time axis (for example, stimulation waveform SW1 and stimulation waveform SW2) to a predetermined period (stimulation period SP). In this example, the waveform generation unit 130 generates the stimulation waveform SW by changing the intensity in steps using rectangular pulses.

The temporal change in the intensity of the stimulation waveform SW (that is, the envelope of the stimulation waveform SW) generated by the waveform generation unit 130 is determined based on the accelerated pulse waveform APW. The accelerated pulse waveform APW will be explained with reference to FIG. 9.

FIG. 9 is a diagram showing an example of an accelerated pulse waveform APW. Here, the accelerated pulse wave waveform APW is a waveform obtained by second-order differentiation of the volume pulse wave waveform on the time axis. The waveform of the volume pulse wave is obtained by, for example, a photoplethysmometer.
The stimulation waveform SW is determined based on the waveform of a portion of the accelerated pulse wave waveform APW shown in the figure that corresponds to the accelerated pulse wave waveform APW1. That is, the stimulation waveform SW is a waveform corresponding to the accelerated pulse waveform APW. In addition, in FIG. 9, the stimulation waveform SW is determined based on the waveform of the portion corresponding to APW1 as an example, but the stimulation waveform SW may also be determined in detail based on the waveform including a plurality of peak values of the acceleration pulse waveform APW. good.

(Step S60) Returning to FIG. 6, the waveform generation unit 130 outputs the stimulation waveform SW generated in step S50 to the stimulation electrode E. As a result, the stimulation electrode E outputs a stimulation current SC to the wearer's U's skin with a cycle and intensity corresponding to the risk level LV.
The waveform generation unit 130 ends the process, for example, after repeatedly outputting the stimulation waveform SW for a predetermined time or a predetermined number of waves.

[Summary of embodiments]
As explained above, the information transmission device 1 stimulates the skin (for example, the wrist) of the wearer U using the stimulation waveform SW of a predetermined pattern according to the stage of the transmission target (for example, the risk of heatstroke). give. According to the information transmission device 1 configured in this way, a dangerous condition for the wearer U (for example, a condition that may cause heat stroke) can be transmitted without relying on sight, hearing, fingertip sensation, etc. I can do it.

Here, in the case where the risk level LV of 5 or more stages is transmitted to the wearer U by distinguishing it for each stage, if only the cycle is changed to 5 or more stages without changing the intensity of the stimulation waveform SW, the wearer U In some cases, it may not be possible to distinguish changes in the stimulus waveform SW. Similarly, when only the intensity is changed in five or more steps without changing the period of the stimulation waveform SW, the wearer U may not be able to distinguish the changes in the stimulation waveform SW. That is, depending on the wearer U, it is difficult to distinguish the stages of the stimulation waveform SW if only one parameter of the stimulation waveform SW is changed in multiple stages (for example, five or more stages).
Furthermore, when the wearer U is engaged in a certain task (for example, construction work or exercise), a situation may occur in which it becomes difficult to notice changes in the stimulus waveform SW because the wearer U is so concentrated on the task. .

The information transmission device 1 of this embodiment distinguishes the stages of the stimulation waveform SW by changing a plurality of parameters (for example, intensity and period). Here, the information transmission device 1 assigns four or less stages of the second parameter (for example, period) to one stage of the first parameter (for example, intensity). Therefore, even when distinguishing between five or more stages, the information transmission device 1 is able to differentiate the level of risk LV from the wearer U compared to when only a specific parameter (for example, cycle) changes. It can be made easier to distinguish.

In addition, when giving the wearer U the stimulus waveform SW with a predetermined periodic pattern that corresponds to the physiological phenomenon of the living body, stimulation by another waveform that does not correspond to the physiological phenomenon of the living body may be applied. It is possible to more intuitively communicate to the wearer U that the wearer U is in danger than when the wearer U is given the following information. As an example, a predetermined periodic pattern that corresponds to the physiological phenomenon of a living body (for example, a periodic pattern that corresponds to heartbeat) is preferable to stimulation using other waveforms that do not correspond to the physiological phenomenon of the living body (for example, mere vibration). stimulation can give the wearer U the illusion that his or her body has changed from its normal state (for example, that it has become tense), and the wearer can more intuitively sense that danger is imminent. It can be transmitted to U.
That is, according to the information transmission device 1 configured in this way, the wearer U can be informed of the impending danger to the wearer U more intuitively without relying on sight, hearing, fingertip sensations, etc. can be transmitted to. Further, according to the information transmission device 1, since electrical stimulation is applied to the wearer U, the configuration of the device can be simplified compared to, for example, a case where mechanical stimulation is applied, and stimulation with relatively high intensity can be easily provided. can give.
Therefore, according to the information transmission device 1, information can be transmitted more intuitively to the wearer U even in a situation where the senses such as visual and auditory senses are hard to appeal to, such as during jogging, for example. In addition, since visual, auditory, and fingertip sensations are senses that are extremely important sources of information in everyday life, the information transmission device 1 can provide information to the wearer U without obstructing these important senses. information can be transmitted by

Furthermore, the information transmission device 1 of this embodiment provides stimulation to the wearer U using the stimulation waveform SW having a waveform corresponding to the pulse. By giving the wearer U a waveform corresponding to the pulse as the stimulus waveform SW, the wearer U recognizes the applied stimulus as the wearer's U own pulse. According to the information transmission device 1 configured in this way, it is possible to more intuitively communicate to the wearer U that danger is imminent.

Furthermore, the information transmission device 1 of this embodiment provides stimulation to the wearer U using a stimulation waveform SW having a waveform corresponding to the accelerated pulse waveform APW. Here, the accelerated pulse wave waveform APW is a waveform based on, for example, a human's average heartbeat. By giving the wearer U a waveform corresponding to the accelerated pulse waveform APW as the stimulation waveform SW, the wearer U recognizes that his or her own heartbeat has changed from normal. According to the information transmission device 1 configured in this way, it gives the wearer U the illusion that the activity of the heart, which is the most important organ for life support, has changed, so that the wearer U can feel more intuitively that danger is imminent. can be communicated effectively.
Furthermore, according to the information transmission device 1, it is possible to create an illusion that the wearer's own heartbeat has become faster before the wearer's actual heartbeat has become faster, so that the state of the wearer U is actually dangerous. It is possible to indicate the possibility of a dangerous situation before it becomes a dangerous situation.

Furthermore, the information transmission device 1 changes the stimulation period SP based on the risk level LV. Here, the cycle of a human's heartbeat becomes faster as the danger increases and the tension increases (that is, the more the sympathetic nervous system becomes active). The information transmission device 1 can make the wearer U feel more tense than when the stimulation period SP is slow by making the stimulation period SP earlier as the risk level LV is higher. According to the information transmission device 1 configured in this way, the degree of danger can be transmitted to the wearer U more intuitively.

Furthermore, the information transmission device 1 changes the stimulation intensity SI based on the risk level LV. Here, the intensity of a human's heartbeat increases as the danger increases and tension increases (that is, as the level of sympathetic nerve activity increases). By increasing the stimulation intensity SI as the risk level LV increases, the information transmission device 1 can make the wearer U feel that the wearer U is in a more tense state than when the stimulation intensity SI is weak. . According to the information transmission device 1 configured in this way, the degree of danger can be transmitted to the wearer U more intuitively.

[Modified example]
FIG. 10 is a diagram showing an example of the period T of the stimulation waveform SW of this embodiment. The information transmission device 1 can select various periods T for the stimulation waveform SW. Modifications of the period T of the stimulation waveform SW that can be selected by the information transmission device 1 will be described below. The information transmission device 1 may determine the cycle of the stimulation waveform SW based on the possible range of the pulse cycle of the living body.
It is known that the possible range of the pulse rate of a living body (for example, a human body) is from about 60 bpm when at rest to about 200 bpm when active, as shown in the figure. In the following description, the longest pulse cycle at rest (for example, 60 bpm) is also referred to as the longest pulse cycle TB. In this example, the longest pulse cycle TB is 1000 ms. Further, the shortest pulse cycle (for example, 200 bpm) during activity is also referred to as the shortest pulse cycle TA. In this example, the shortest pulse cycle TA is 300 ms.

(1) Lower limit value of the period T on the short period side The information transmission device 1 sets the period T on the short period side of the stimulation waveform SW to be lower than the shortest period (shortest pulse period TA) in the range of the pulse period of the living body. It may be a short cycle. For example, the information transmission device 1 sets the period T of the highest stage of the stimulation period SP to be less than 300 ms. As an example, the information transmission device 1 sets the period T of the highest stage (for example, period T5 shown in FIG. 5) to 150 ms.
In other words, the period of the highest stage of the stimulation period SP in the parameter combination information P is shorter than the shortest period (shortest pulse period TA) in the range of pulse periods of the living body.
According to the information transmission device 1 configured in this way, when transmitting to the wearer U that the risk level LV is high, the stimulation waveform SW with a cycle faster than the pulse of the wearer U is provided, so that the risk level LV It is possible to make it easier for the wearer U to perceive that the wearer U is in a high state.

(2) Upper limit value of period T on the short period side The information transmission device 1 determines that the period T on the short period side of the stimulation waveform SW is half of the shortest period (shortest pulse period TA) in the range of the pulse period of the living body. The period may be longer than the period of .
For example, the information transmission device 1 sets the period T of the highest stage of the stimulation period SP to be equal to or less than half the shortest pulse period TA (300 ms) (150 ms). Note that the term "period longer than half the period" herein may include exactly half the period. As an example, the information transmission device 1 sets the period T of the highest stage (for example, period T5 shown in FIG. 5) to 150 ms.
In other words, the period of the highest stage of the stimulation period SP in the parameter combination information P is longer than half the shortest period (shortest pulse period TA) in the possible range of the pulse period of the living body. It is.
According to the information transmitting device 1 configured in this way, when transmitting to the wearer U that the risk level LV is high, in order to provide a stimulation waveform SW with a cycle not too far from the cycle of the wearer U's pulse, This can be perceived by the wearer U without any discomfort.

(3) Upper limit value of the period T on the long period side The information transmission device 1 sets the period T on the long period side of the stimulation waveform SW to be longer than the longest period (maximum pulse period TB) in the range of the pulse period of the living body. It may be a long cycle. For example, the information transmission device 1 sets the period T of the lowest stage of the stimulation period SP to a range exceeding 1000 ms. As an example, the information transmission device 1 sets the cycle T of the lowest stage (for example, the cycle T1 shown in FIG. 5) to 1500 ms.
In other words, the cycle of the lowest stage of the stages of the stimulation cycle SP in the parameter combination information P is longer than the longest cycle (longest pulse cycle TB) in the range of possible pulse cycles of the living body.
According to the information transmission device 1 configured in this way, when transmitting to the wearer U that the risk level LV is in a low state, in order to provide a stimulation waveform SW with a cycle slower than the pulse of the wearer U, It is possible to increase the difference from the state where the risk level LV is high, and it is possible to make it easier for the wearer U to perceive the distinction between the risk levels LV.

(4) Lower limit value of the period T on the long period side The information transmission device 1 sets the period T on the long period side of the stimulation waveform SW to 2 of the longest period (maximum pulse period TB) in the range of the pulse period of the living body. The period may be shorter than twice the period. For example, the information transmission device 1 sets the cycle T of the lowest stage of the stimulation cycle SP to a range that does not exceed half the cycle (2000 ms) of the longest pulse cycle TB (1000 ms). As an example, the information transmission device 1 sets the cycle T of the lowest stage (for example, the cycle T1 shown in FIG. 5) to 1500 ms.
In other words, the cycle of the lowest stage of the stages of the stimulation cycle SP in the parameter combination information P is shorter than twice the longest cycle (maximum pulse cycle TB) of the possible range of the pulse cycle of the living body. It is a cycle.
According to the information transmitting device 1 configured in this way, when transmitting to the wearer U that the risk level LV is in a low state, the stimulation waveform SW with a cycle not too far from the cycle of the wearer U's pulse is transmitted. Therefore, the wearer U can feel it without any discomfort.

[Modified example of parameter combination information P]
As described above, the parameter combination information P referred to by the information transmitting device 1 corresponds to the monotonous change in the stage of the transmission target indicated by the stage information DL, between the stage of the stimulation period SP and the stage of the stimulation intensity SI. At least one of the parameters changes monotonically.
For example, in the example of the parameter combination information P shown in FIG. 5, if the stages of the transmission target monotonically increase from risk level LV1, risk level LV2, risk level LV3, etc., the stages of the stimulation period SP are cycle T1, cycle T2, It increases monotonically with period T3...
Furthermore, in the example of the parameter combination information P shown in FIG. 5, if the stage of the transmission target monotonically increases from danger level LV4 to danger level LV5, etc., then the stage of the stimulation period SP monotonically increases from period T3 to period T4, etc. .

According to the information transmission device 1 configured in this way, since the parameters of the parameter combination information P change monotonically in accordance with changes in the risk level LV, it is possible to make it easier for the wearer U to perceive increases and decreases in the risk level LV. can.
Note that in the information transmission device 1 of this embodiment, the parameter combination information P can be modified in various ways.

FIG. 11 is a diagram showing a modified example of the parameter combination information P of this embodiment. In the parameter combination information P of this modification, the period T1 of the stimulation period SP and the intensity 1 of the stimulation intensity SI are combined as a combination of parameters indicating the degree of risk LV1 (level 1). As a combination of parameters indicating the risk level LV2 (level 2), the period T2 of the stimulation period SP and the intensity 1 of the stimulation intensity SI are combined. As a combination of parameters indicating the risk level LV3 (level 3), the period T2 of the stimulation period SP and the intensity 2 of the stimulation intensity SI are combined.

Further, as a combination of parameters indicating the degree of risk LV4 (level 4), period T3 of the stimulation period SP and intensity 3 of the stimulation intensity SI are combined. As a combination of parameters indicating the risk level LV5 (level 5), the period T4 of the stimulation period SP and the intensity 3 of the stimulation intensity SI are combined.

In the case of this example as well, the parameter combination information P is configured to change at least one of the stimulation period SP and the stimulation intensity SI in response to a monotonous change in the transmission target stage indicated by the stage information DL. Parameters change monotonically.

In addition, in the example of the parameter combination information P shown in the same figure, if the stage of the transmission target monotonically increases from danger level LV2, danger level LV3, danger level LV4, etc., the stage of stimulation intensity SI changes to strength 1, strength 2, strength 2, etc. The intensity increases monotonically to 3... Furthermore, in an example of the parameter combination information P, if the stage of the transmission target monotonically increases from danger level LV3, danger level LV4, danger level LV5... To increase.
That is, in this example, the parameters of both the stimulation period SP stage and the stimulation intensity SI stage are monotonically changing in response to the monotonous change in the stage of the transmission target indicated by the stage information DL. In this way, the parameter combination information P can be used even if the parameters of both the stimulation period SP stage and the stimulation intensity SI stage change monotonically in response to the monotonous change in the stage of the transmission target indicated by the stage information DL. good.

Although the embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and changes may be made as appropriate without departing from the spirit of the present invention. can. Further, the configurations and operations described in the above-described embodiments can be arbitrarily combined without departing from the spirit of the present invention.

Note that each of the above-mentioned devices has a computer inside. The processes of each of the above-mentioned apparatuses are stored in a computer-readable recording medium in the form of a program, and the above-mentioned processes are performed by reading and executing this program by the computer. Here, the computer-readable recording medium refers to a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, and the like. Alternatively, this computer program may be distributed to a computer via a communication line, and the computer receiving the distribution may execute the program.

Moreover, the above-mentioned program may be for realizing a part of the above-mentioned functions.
Furthermore, it may be a so-called difference file (difference program) that can realize the above-described functions in combination with a program already recorded in the computer system.

DESCRIPTION OF SYMBOLS 1... Information transmission device, 10... Control part, 110... Stage information acquisition part, 120... Combination information acquisition part, 130... Waveform generation part, 140... Stage information generation part, 20... Information supply device, DP... Display part, TP …Operation unit, WB…Band, SS…Environmental sensor, MS…Biological sensor, P…Parameter combination information, D…Transmission target information, DL…Stage information, APW…Accelerated pulse wave waveform, SC…Stimulation current, LV…Danger degree, SI...stimulation intensity, SP...stimulation period, BM...biological information

Claims (8)

a stage information acquisition unit that acquires stage information indicating the stage of the transmission target;
A parameter that includes a plurality of stages of a stimulation cycle and a plurality of stages of a stimulation intensity as parameters, and shows a change in the stage of the transmission target by fixing the stage of the stimulation intensity and changing the stage of the stimulation cycle. and a second combination that indicates a change in the stage of the transmission target by fixing the stage of the stimulation cycle and changing the stage of the stimulation intensity. a combination information acquisition unit that acquires the parameter combination information of the combination corresponding to the stage information acquired by the stage information acquisition unit from the unit;
a waveform generation unit that generates a stimulation waveform based on the parameter combination information acquired by the combination information acquisition unit;
a stimulation electrode that applies a stimulation current to the wearer's skin based on the stimulation waveform generated by the waveform generation section;
An information transmission device comprising: The parameter combination information includes combinations in which one stage of one parameter is associated with two or more and three or less stages of the other parameter.
The information transmission device according to claim 1. The information according to claim 1 or 2, wherein the period of the highest stage of the stages of the stimulation cycle in the parameter combination information is a cycle shorter than the shortest cycle in a range of possible pulse cycles of the living body. transmission device. Information transmission according to claim 3, wherein the period of the highest stage of the stages of the stimulation cycle in the parameter combination information is a cycle longer than half the shortest cycle in a range of possible pulse cycles of the living body. Device. The information according to claim 3 or 4, wherein the lowest stage of the stimulation cycle stages in the parameter combination information is longer than the longest cycle in a range of pulse cycles of the living body. transmission device. The information according to claim 5, wherein the lowest stage of the stimulation cycle stages in the parameter combination information is shorter than twice the longest cycle in a range of possible pulse cycles of the living body. transmission device. In the parameter combination information, at least one parameter of the stimulation cycle stage and the stimulation intensity stage changes monotonically in response to a monotonous change in the stage of the transmission target indicated by the stage information. The information transmission device according to any one of claims 1 to 6. to the computer,
a stage information acquisition step of acquiring stage information indicating the stage of the transmission target;
A parameter that includes a plurality of stages of a stimulation cycle and a plurality of stages of a stimulation intensity as parameters, and shows a change in the stage of the transmission target by fixing the stage of the stimulation intensity and changing the stage of the stimulation cycle. and a second combination that indicates a change in the stage of the transmission target by fixing the stage of the stimulation cycle and changing the stage of the stimulation intensity. a combination information acquisition step of acquiring, from the unit, the parameter combination information of the stage corresponding to the stage information acquired in the stage information acquisition step;
a stimulation step of applying a stimulation current to the wearer's skin with a waveform based on the parameter combination information acquired in the combination information acquisition step;
A program to run.

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