JP2005261669A - Biological state estimation device - Google Patents

Abstract

【Task】
To provide a biological state estimation device capable of accurately estimating the future physiological and psychological state of a biological body.
[Solution]
The circadian awakening model of the living body 2 is detected based on the physiological psychological information of the living body 2, the behavior information of the living body 2 is acquired, and the future physiological and psychological state of the living body 2 is determined based on the circadian awakening model and the behavior information. presume. Thereby, even if the living body 2 performs an extraordinary behavior, the physiological psychological state can be estimated according to the behavior, and the physiological psychological state of the biological body 2 can be accurately estimated.
[Selection] Figure 1

Description

  The present invention relates to a biological state estimation device that estimates a physiological and psychological state of a biological body.

2. Description of the Related Art Conventionally, as a device for measuring a biological state, a biological rhythm curve measuring device for measuring a biological rhythm curve from a measured value of a human deep body temperature is known as described in Japanese Patent Laid-Open No. 5-3876. . This device is used for measuring daily biological rhythms (circadian rhythms) in daily life.
Japanese Patent Laid-Open No. 5-3876

  In this apparatus, biological rhythm can be measured, but the physiological state and psychological state of the living body in the future cannot be predicted. For this reason, it is difficult to control how to improve the biological state and avoid the biological state. In addition, the physiological state and psychological state of the living body are different between the case of daily activity content and the case of non-daily activity content. For this reason, it is difficult to accurately predict the physiological and psychological state of a living body simply by using only physiological indices such as body temperature.

  Then, an object of this invention is to provide the biological condition estimation apparatus which can estimate the future physiological state of a biological body correctly.

  That is, the biological state estimation device according to the present invention includes a circadian physiological state detection unit that detects a circadian physiological state of the living body based on physiological and psychological information of the living body, and a behavior information acquisition unit that acquires the biological behavior information. And an estimation means for estimating a future physiological and psychological state of the living body based on the circadian physiological state and the behavior information. Here, physiological psychological information means information including at least one of physiological information and psychological information.

  According to the present invention, even if the living body behaves extraordinarily by estimating the future physiological and psychological state of the living body in consideration of not only the circadian physiological state of the living body but also the action information of the living body. The physiological and psychological state can be estimated according to the behavior, and the physiological and psychological state of the living body can be accurately estimated.

  The biological state estimating apparatus according to the present invention further includes physiological psychological information acquisition means for acquiring current physiological psychological information of the biological body, and the estimating means includes the circadian physiological state, the current physiological psychological information, and the behavior. A future physiological and psychological state of the living body is estimated based on the information.

  According to the present invention, by detecting the future physiological and psychological state of the living body based on the circadian physiological state, the current physiological and psychological information, and the behavior information, a deviation between the circadian physiological state and the current physiological state is detected. The physiological and psychological state of the living body can be estimated in consideration of the deviation. For this reason, the physiological and psychological state of the living body can be accurately estimated.

  In the living body state estimating apparatus according to the present invention, it is preferable that the circadian physiological state detecting means detects the circadian awakening model of the living body based on physiological and psychological information of the living body. In this case, the arousal level can be accurately estimated as the future physiological state of the living body.

  According to the present invention, a future biological state can be accurately estimated.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a schematic configuration diagram of a biological state estimation apparatus according to an embodiment of the present invention.

  As shown in FIG. 1, a biological state estimation device 1 according to the present embodiment is a device that estimates a future physiological and psychological state in a living body 2 that is a human, and includes an interface unit 3, an information management unit 4, and a biological state estimation. Part 5 is provided.

  The interface unit 3 exchanges information with the living body 2, acquires current physiological / psychological information of the living body 2, functions as a physiological / psychological information acquisition unit, and provides future physiological / psychological information to the living body 2. Functions as a physiological and psychological information providing means. Here, physiological psychological information means information including at least one of physiological information and psychological information.

  The interface unit 3 is preferably a portable unit that can be carried by the living body 2. For example, a type that can be attached to the arm of the living body 2 like a wristwatch is used. The interface unit 3 includes a physiological data measurement unit 31, a voice recognition unit 32, and a voice generation unit 33.

  The physiological data measuring unit 31 functions as physiological information acquisition means for acquiring current physiological information of the living body 2, and for example, a device that measures the pulse, body temperature, blood pressure, sweating, and wrist movement of the living body 2 is used. . In some cases, a device that measures a part of the pulse, body temperature, blood pressure, sweating, and wrist movement may be used. As the physiological data measurement unit 31, any measurement method may be used as long as physiological information can be acquired.

  The voice recognition unit 32 inputs and recognizes the voice of the living body 2, and includes a microphone and a voice recognition device, for example. The voice recognition unit 32 functions as a physiological and psychological information acquisition unit that acquires current physiological and psychological information of the living body 2 based on the sound information of the living body 2. For example, physiological psychological information such as whether the person is awake or sleeps, sleep time, sleepiness, and mood is acquired through voice input of the living body 2.

  The voice recognition unit 32 also functions as a behavior information acquisition unit that acquires the behavior information of the living body 2 based on the voice information of the living body 2. For example, a future action schedule of the living body 2 such as today's schedule content is acquired through the sound of the living body 2.

  The sound generation unit 33 provides information to the living body 2 by sound, and functions as one of physiological and psychological information providing means for providing the living body 2 with future physiological and psychological information. As the sound generation unit 33, a speaker that generates sound by inputting a sound signal is used. The voice generation unit 33 and the voice recognition unit 32 function as a dialogue agent that realizes a dialogue with the living body 2.

  The interface unit 3 includes a communication unit and a control unit (not shown). The communication unit performs communication of information data with the information management unit 4 and the biological state estimation unit 5. The communication method of the communication unit may be wireless or wired, but it is preferable to use a wireless method. For example, it communicates with a predetermined base station by a wireless system like a mobile phone, and communicates with the information management unit 4 and the biological state estimation unit 5 through the Internet line from the base station. The control unit performs control processing for the entire interface unit 3.

  The information management unit 4 stores and manages the physiological psychological information of the living body 2. The physiological and psychological information of the living body 2 acquired by the interface unit 3 is input and recorded in the information management unit 4 by communication. Further, the behavior information of the living body 2 acquired by the interface unit 3 is also input and recorded in the information management unit 4 by communication.

  The information management unit 4 is installed in the general management center 6, for example. The comprehensive management center 6 is a facility that comprehensively manages information data of a plurality of biological state estimation devices. For example, a plurality of servers are installed in the general management center 6, and the servers function as the information management unit 4 and can communicate with the interface unit 3 carried by the living body 2.

  The information management unit 4 includes a communication unit and a control unit (not shown). The communication unit performs communication of information data with the interface unit 3 and the biological state estimation unit 5. The control unit performs control processing for the entire information management unit 4.

  The biological state estimation unit 5 functions as an estimation unit that estimates the future physiological and psychological state of the living body 2 based on the circadian physiological state and behavior information of the living body 2. As this biological state estimation unit 5, for example, an information processing device such as a computer is used. The living body state estimation unit 5 is preferably installed in the general management center 6 similarly to the information management unit 4. Note that the biological state estimation unit 5 and the information management unit 4 may be installed at a place other than the general management center 6.

  The biological state estimation unit 5 also functions as a circadian physiological state detection unit that detects the circadian physiological state of the biological body 2 based on the physiological psychological information of the biological body 2. For example, a circadian awakening model for detecting the awakening level of the living body 2 in the daily cycle is set in the living body state estimation unit 5. The circadian awakening model is set so as to calculate the circadian awakening degree of the living body 2 based on physiological psychological information of the living body 2 input from the interface unit 3 or the information management unit 4.

  For example, the circadian awakening model is modeled based on physiological data, wake-up time and deep sleep level measured in time series. As a modeling method, a neural network, multiple regression analysis, or the like using an introspection report of an individual of the living body 2 as teacher data and the other as input data is used.

  Moreover, the biological state estimation unit 5 has an external influence degree estimation function. This external influence degree estimation function is a function for estimating the influence of the living body 2 on the physiological psychological state of the living body 2. For example, the living body state estimation unit 5 acquires the action content of the living body 2 as action information from the interface unit 3 and the like, and acquires the physiological and psychological state of the living body 2 during the action.

  Then, the fluctuation of the physiological and psychological state with respect to the predetermined action is estimated by a neural network or multiple regression analysis. However, the sleepiness is preferably an estimated value obtained by subtracting the sleepiness estimated value from the circadian awakening model. In this case, fluctuations in sleepiness due to pure external influences on behavior can be estimated.

  Moreover, the biological state estimation unit 5 has an information discrimination function. In other words, the biological state estimation unit 5 is the information useful for estimating the circadian awakening model or the external influence degree with respect to the physiological psychological information of the living body 2 input from the interface unit 3 or the information management unit 4. Is determined. For example, the acquired physiological and psychological information and behavior information of the living body 2 are determined through the conversation agent as daily information or extraordinary information, and when the information is determined as daily information, the information is used to estimate the circadian awakening model. If it is determined to be extraordinary information, the information is used to estimate the external influence.

  In the biological state estimation unit 5, it is preferable to use a learning process when the external influence degree of the biological body 2 is estimated, the circadian physiological state is estimated, and the future physiological psychological state is estimated. For example, for estimation of future physiological and psychological states, compare the estimated future physiological and psychological states with the actual future physiological and psychological states, change the estimation parameters as appropriate according to the difference, and more accurately Enable estimation.

  Next, operation | movement of the biological condition estimation apparatus 1 which concerns on this embodiment is demonstrated.

  Here, the case where A as a truck driver uses the biological state estimation device 1 will be described. In FIG. 1, A, which is a living body 2, wakes up at 6:00 am and wears an interface unit 3 which is a portable physiological sensor on his arm. The interface unit 3 measures A's pulse, body temperature, blood pressure, sweating, and wrist movement by the physiological data measuring unit 31.

  Further, the interface unit 3 obtains physiological psychological information by hearing the current physiological psychological state of A through a dialogue agent configured by the voice recognition unit 32 and the voice generation unit 33. These physiological data such as a pulse and physiological psychological information are transmitted from the interface unit 3 to the information management unit 4 and recorded together with time information.

  A then cleans her face as usual, turns on the audio switch, and listens to her favorite music with her eyes open for about 10 minutes. At this time, physiological data at rest is acquired and recorded by the physiological data measuring unit 31. After that, A feels calm and begins to have breakfast. The dialogue agent determines that A is having breakfast from the relationship between the wrist movement and the action information that has already been stored.

  Then, the dialogue agent asks A about the quality of today's wakeup, sleep time, and mood. The state of A at this time is determined to be a state in daily behavior, and that fact is recorded in the information management unit 4 together with physiological psychological information. Then, based on the information stored in the information management unit 4, the biological state estimation unit 5 detects a difference between A's current physiological state and circadian physiological state. For example, by comparing the physiological and psychological information input this morning with the circadian awakening model, it is detected that today's A awakening is a little worse than usual and the awakening rhythm is delayed by about 30 minutes.

  And A starts preparing to leave for work with the engine of the truck. Today, as usual, A goes to the delivery center near his home to pick up the package, delivers the package from the Metropolitan Expressway to the delivery center near the Numazu Interway via the Tomei Expressway, and returns on the same route. It is. This schedule is already recorded as A's action information in the information management unit 4 through the Internet by a personal computer (PC) owned by A.

  When the truck engine is started, an interface unit (not shown) installed in the vehicle is activated. This in-vehicle interface unit is provided with a dialog agent function and a communication function in the same way as the portable interface unit 3 described above. The physiological / psychological information and behavior information of A can be input to the information management unit 4 through the in-vehicle interface unit.

  A then goes to a delivery center near his home and loads the luggage onto the truck. So A takes a break. A is tired because he has more luggage than usual. In the physiological data, the pulse rate, blood pressure, sweating, and body temperature increase are higher than the average value. These physiological data are transmitted from the interface unit 3 attached to the arm to the information management unit 4 and recorded, and input from the information management unit 4 to the biological state estimation unit 5.

  The biological state estimation unit 5 estimates the external influence degree based on the physiological data, and estimates the future physiological psychological state of A based on the influence degree. For example, the degree of arousal after several hours due to the work at the time of loading the load is calculated, and the physiological and psychological state after several hours of A is estimated based on the calculation result. Thereby, for example, it is estimated that sleepiness due to work fatigue occurs around 4 pm. A finishes the break and heads to the destination Numazu distribution center. The time here is past 10 am.

  Truck A entered the Tomei Expressway from the Metropolitan Expressway, ran smoothly, and arrived at the distribution center in Numazu, a safe target value. I immediately dropped my baggage and finished my work today. All you have to do is have lunch and go home. The time is too late. Physiological data is almost the same as usual while resting after finishing a series of work. I left the Numazu distribution center and arrived at the nearest cafeteria. Today I use energy a little physically, so I eat katsudon.

  After a meal, take a break in the cafeteria. It is estimated by comparing the physiological data with the circadian awakening model by the biological state estimation unit 5 that the physiological data at this time shows the same fluctuation as usual. At the same time, the external influence level estimation function calculates the influence on the arousal level from 2 hours to 4 hours after eating the cutlet on the lunch menu. According to this, it is estimated that drowsiness will hit around 4pm. After a break, A leaves the cafeteria around 2 pm and heads home in Tokyo on the reverse route.

  I usually get a little sleepy around 3pm, but I don't want to sleep today. A felt that he would feel comfortable going home if he was in the same condition. At this time, the dialogue agent points out the following two points to A. The first point is that today's wakefulness is about 30 minutes later than usual, and the second point is that the digestion time is longer due to the morning sleep and eating bonito. Drowsiness occurs around 4pm.

  A decided to take a break in the nearest parking area based on the advice of the dialogue agent. When arriving at the parking area, the dialogue agent recommends A to purchase a caffeinated beverage that will be effective in about 30 minutes and a chewing gum with a high arousal effect. A purchases each as per this dialogue agent's advice and runs the truck again. Run for a while and get traffic information from the radio if there is traffic around the exit at around 4pm.

  The dialogue agent determines that A is frustrated from the traffic information contents, and recommends a relaxing BGM. Then I got stuck in a few minutes. Usually, evening traffic is frustrating because of drowsiness and the desire to return early, but A is drowsy and is driving without hesitation while listening to BGM. Each numerical value of the measured physiological data and the arousal level of the biological state estimation unit 5 are also high. The dialogue agent asks A's favorite food topic to keep A's awake state, and talks about what he wants to eat today's dinner.

  The conversation with the conversation agent also fell, and when A noticed, he passed through the traffic jam and soon came near his home. Naturally, the conversation contents and physiological data at this time are input by the interface unit 3 and recorded in the information management unit 4. Anyway, it was a very comfortable day for A. A went home with a pleasant tired feeling after turning off the truck engine.

  As described above, according to the living body state estimation device 1 according to the present embodiment, the circadian physiological state (circadian awakening model) of the living body 2 is detected based on the physiological psychological information of the living body 2, and the behavior information of the living body 2 is detected. And the future physiological and psychological state of the living body 2 is estimated based on the circadian physiological state and the behavior information. For this reason, even if the living body 2 behaves extraordinarily, the physiological / psychological state corresponding to the behavior can be estimated, and the physiological / psychological state of the living body 2 can be accurately estimated.

  Moreover, since the future physiological and psychological state of the living body 2 can be accurately predicted, it is possible to appropriately take measures according to the future physiological and psychological state. For this reason, the living body 2 can perform comfortable social activities. In that case, it is preferable to advise the countermeasure according to the future physiological state of the living body 2. Thereby, the living body 2 can easily take the countermeasure and can realize a comfortable future activity state.

  Moreover, according to the biological state estimation device 1 according to the present embodiment, the current physiological / psychological information of the biological body 2 is acquired, and the future physiological state of the biological body 2 is based on the circadian physiological state, the current physiological / psychological information, and the behavior information. By estimating the psychological state, it is possible to detect a deviation between the circadian physiological state and the current physiological state, and to estimate the physiological psychological state of the living body 2 in consideration of the deviation. For this reason, the physiological and psychological state of the living body 2 can be accurately estimated.

  In the present embodiment, the case where the arousal level is estimated as the future physiological state of the living body 2 has been described. However, the living body state estimating apparatus according to the present invention is not limited to such a case. You may estimate about other physiological psychological states, such as fatigue and impatience.

1 is a schematic configuration diagram of a biological state estimation apparatus according to an embodiment of the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Living body state estimation apparatus, 2 ... Living body, 3 ... Interface part, 4 ... Information management part, 5 ... Living body state estimation part, 6 ... General management center, 31 ... Physiological data measurement part, 32 ... Voice recognition part, 33 ... sound generator 33.

Claims (3)

A circadian physiological state detecting means for detecting a circadian physiological state of the living body based on physiological physiological information of the living body,
Behavior information acquisition means for acquiring behavior information of the living body;
Estimating means for estimating a future physiological and psychological state of the living body based on the circadian physiological state and the behavior information;
A biological state estimation device comprising: Comprising physiological and psychological information acquisition means for acquiring current physiological and psychological information of the living body,
The estimating means estimates a future physiological and psychological state of the living body based on the circadian physiological state, the current physiological and psychological information and the behavior information;
The biological state estimation apparatus according to claim 1, wherein:   The biological condition estimating apparatus according to claim 1, wherein the circadian physiological state detecting unit detects a circadian awakening model of the living body based on physiological and psychological information of the living body.

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