JP2011182973A - Brain wave collection controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a brain wave collection controller which can be easily operated not only by experts like doctors or researchers but also by ordinary people. <P>SOLUTION: This brain wave collection controller 1 has: a hat-type portable unit 10 forming a cowboy hat 20, which is equipped with a brain wave detection device 21 including an electrode pad 22, a first signal processing circuit 24, and a first radio communication section 25, and which can be worn on a human head 3; and a base unit 11 comprising a second radio communication section 30, a second signal processing means 31, and an impulse generator section 32 for generating impulses to human sense organs. The second signal processing section 31, which is connected to the second radio communication section 30, processes a brain wave signal together with the first signal processing section 24, so that the impulse generator section 32 can generate a different impulse in response to a change in the brain wave signal. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electroencephalogram collection control apparatus that controls human activities based on collected electroencephalograms.

  Humans may fall asleep because of various factors such as age, fatigue, and illness. In situations where it is possible to sleep, it may be preferable for health to promote sleep, but in situations where automobiles, large machines, dangerous goods, etc. are handled, it will fall asleep even though it is not going to sleep from the viewpoint of accident prevention It is necessary to avoid such unexpected situations as much as possible.

  Therefore, in the automobile field, a driving support device for a moving body (for example, Patent Document 1) that detects a sign of falling asleep with an in-vehicle camera is known. When the driving support device for a moving body of Patent Document 1 asks the driver an interactive question when the driver's drowsiness is detected, and determines that the driver's answer is not appropriate from the viewpoint of safe driving, Ask the driver to check the distance between vehicles. That is, Cited Document 1 discloses a technique for preventing an accident due to falling asleep by raising the driver's awareness of safe driving through a dialogue between the driving support apparatus for a moving body and the driver.

  However, it is difficult to accurately grasp the state of a person across various environments by using a camera to detect a limited state of a person such as a nap in a limited environment of driving a car. If the human state cannot be accurately grasped, it is difficult to determine what should be done to bring the human activity closer to the desired state.

  Therefore, a technique for detecting brain waves and controlling human activities based on the detected brain waves is known. Grasping human activity by means of brain waves has the advantage of being more accurate than grasping by appearance. However, brain waves have a drawback that they are difficult to detect and understand unless they are specialists such as doctors and researchers. Furthermore, since a conventional device for measuring an electroencephalogram is assumed to be handled by an expert, the structure and wiring are complicated. In other words, the use of brain waves to grasp human activities in places where there are no specialists, such as when driving a car, has not been studied much.

  For example, in Patent Document 2 that discloses an apparatus for measuring an electroencephalogram, wiring is routed from an electrode attached to a hat to an observation device. Therefore, care must be taken in handling so as not to cut the wiring. Therefore, an expert is required.

JP 2007-310729 A US Pat. No. 6,574,513

  However, it is very difficult for a general user to accompany an expert when he wants to bring a person close to his or her desired state in general life, for example, to prevent falling asleep while driving a car or to increase concentration during housework. It is annoying.

  An object of the present invention is to provide an electroencephalogram collection control apparatus that can be easily handled by a general person who is not an expert such as a doctor or a researcher.

  The first electroencephalogram collection control apparatus includes a carrying unit and a base unit. The carrying unit has an electroencephalogram detection device and a head-mounted body. The electroencephalogram detection device detects an electroencephalogram and outputs an electroencephalogram signal corresponding to the electroencephalogram, first signal processing means for signal processing the electroencephalogram signal, and a first wireless connected to the first signal processing means. Communication means. The head-mounted body is configured to be mounted on the head of a human body with an electroencephalogram detection device mounted thereon. The base unit includes second wireless communication means, stimulus generation means, and second signal processing means. The second wireless communication unit wirelessly communicates with at least the first wireless communication unit. The stimulus generation means generates a stimulus for a sensory organ of the human body. The second signal processing means is connected to the second wireless communication means and performs signal processing of the electroencephalogram signal together with the first signal processing means, whereby the stimulus generated by the stimulus generation means is responsive to the change in the electroencephalogram signal. Change.

  According to the first electroencephalogram collection control apparatus, the carrying unit can be handled separately from the base unit, and the person who wears the carrying unit can compare with the case where the carrying unit and the base unit are connected by wire. Increased freedom of action. Furthermore, since a set of electroencephalogram detection devices is mounted on the head-mounted body, even non-specialists such as doctors and researchers can easily attach electrodes to the head.

  In addition, the head mounting body should just be formed so that a part of head may be covered. The head mounted body may be one that inserts the head into the opening like a baseball cap, or one that surrounds the head in an annular shape like a sun visor, and is above the neck of the head. May be a mask that covers the top of the head, or a small dish that can be placed on the top of the head. The head-mounted body may be a hat with a brim or a hat without a brim. Examples of the head-mounted body include a cowboy hat, a baseball cap, a straw hat, a sun visor, a school cap, a sports competition hat, a barrette, a hair ornament, a wig, and a headset.

  The second electroencephalogram collection control apparatus includes a plurality of electroencephalogram detection devices in the first electroencephalogram collection control apparatus. Furthermore, each electroencephalogram detection device is configured to be detachable from the head-mounted body.

  Portable units are prone to failure when used by non-professionals such as doctors and researchers. If a failure occurs, you must identify the cause and take countermeasures. However, it is not easy to identify the cause, and it is extremely difficult for a general person who is not an expert to identify the cause and find a countermeasure.

  In the second electroencephalogram collection control apparatus, it is possible to eliminate the cause only by replacing the failed electroencephalogram detection device without specifying the detailed cause. If all electrodes are processed by a single electroencephalogram detection device, the entire electroencephalogram detection device including multiple electrodes must be replaced unless the cause is identified, and the entire carrying unit is used until the cause is identified. It will not be possible. However, according to the second electroencephalogram collection control apparatus, it becomes possible to remove only the failed electroencephalogram detection device and continue to operate the remaining electroencephalogram detection devices, so that the influence of the failure can be reduced.

  In addition, as a method of detecting a failure of the detachable electrode unit, the electroencephalogram processing means detects a failure of the detachable electrode unit by comparing a predetermined failure pattern with the detected electroencephalogram, and further notifies the failure. A method is illustrated. Moreover, the method of detecting a failure of the detachable electrode unit using an external inspection device is exemplified.

  According to the second electroencephalogram collection control apparatus, the set of electrodes, the first signal processing means, and the first wireless communication means can be exchanged, so that the electroencephalogram detection device can be used without being aware of the electrical system connection relationship. Can be exchanged. Therefore, even in a place where there is no specialist such as a doctor or a researcher, a general person can easily replace the electroencephalogram detection device.

  In the third electroencephalogram collection control apparatus, the carrying unit of the second electroencephalogram collection control apparatus includes a first attachment / detachment member and a second attachment / detachment member. The first detachable member is mounted on the head-mounted body as an attachment position of the electroencephalogram detection device on the head-mounted body. The second attachment / detachment member removably attaches the electroencephalogram detection device to the first attachment / detachment member.

  When using the conventional electroencephalogram measurement technique, it is necessary to attach dozens of electrodes to the head, so that the behavior of the person wearing the electrodes is limited to a narrow range. Furthermore, since conventional signal processing apparatuses are quite large and expensive, it is not considered to measure brain waves in environments other than medical institutions and specialized institutions. Furthermore, since the conventional electrode structure and mounting method are complicated, it is difficult for a general person alone to mount the electrode on the head without relying on specialists such as medical personnel and researchers. However, in general life, the carrying unit is exposed to foreign matters such as sweat, rain, and dust, and therefore, an ordinary person who is not an expert must replace the electrode.

  According to the third electroencephalogram collection control apparatus, it is possible to mount the electroencephalogram detection device at a predetermined position of the head-mounted body simply by attaching the second attaching / detaching member to the position positioned by the first attaching / detaching member. It becomes possible. Therefore, even in a place where there is no specialist such as a doctor or a researcher, a general person can easily replace the electroencephalogram detection device.

  The fourth electroencephalogram collection control apparatus is the electroencephalogram collection control apparatus according to any one of the first to third electroencephalogram collection control apparatuses, wherein the carrying unit has a head for at least one of the first signal processing means and the second signal processing means. It further has a position confirmation device that outputs position information indicating the position of the electrode on the mounting body.

  According to the fourth electroencephalogram collection control apparatus, the position of the electrode can be confirmed as appropriate. Therefore, when the carrying unit is replaced, when the electroencephalogram detection device is replaced, or when the attachment position of the electroencephalogram detection device is changed, it is possible to accurately grasp the correspondence between the electroencephalogram signal and the position of the electrode. It becomes.

  For example, by making the electroencephalogram detection device shareable regardless of the mounting position on the head mounted body, even an ordinary person can easily attach the brain wave detecting device to the head mounted body without worrying about the mounting position. Is possible. In addition, for example, when an electrode is not attached at a position where an electroencephalogram must be detected, a necessary electroencephalogram signal can be reliably acquired by issuing a warning such as a sound.

  In the fourth electroencephalogram collection control apparatus, the position confirmation device in the fourth electroencephalogram collection control apparatus detects the position of the electrode on the head-mounted body by scanning at least one of electromagnetic waves and ultrasonic waves.

  According to the fifth electroencephalogram collection control apparatus, it becomes possible to comprehensively grasp the positions of the plurality of electrodes by the position confirmation device, and it is not necessary to correspond the electrodes and the position confirmation device one-to-one. It can be simplified. In addition, you may make it match | combine the position of an electrode and an electroencephalogram signal by transmitting the identification information of an electroencephalogram signal from an electroencephalogram detection device to a position confirmation device.

  The sixth electroencephalogram collection control apparatus is the fourth electroencephalogram collection control apparatus, and includes a plurality of electroencephalogram detection devices and a plurality of position confirmation devices. Further, the position confirmation device stores the position information so as to be readable from the outside. Furthermore, each brain wave detection device reads position information from at least one position confirmation device.

  According to the sixth electroencephalogram collection control apparatus, it is possible to share the transmission of position information among a plurality of position confirmation devices, so that the configuration on the position confirmation device side can be simplified. For example, an IC card (integrated circuit card; ICC) is exemplified as the position confirmation device.

  A seventh electroencephalogram collection control apparatus includes a plurality of electroencephalogram detection devices in any of the first to sixth electroencephalogram collection control apparatuses. Further, a detection position at which the carrying unit outputs designation information for designating at least one detection position from a plurality of detection positions for detecting the electroencephalogram signal to at least one of the first signal processing means and the second signal processing means. It further has a designated device. Furthermore, the first signal processing means and the second signal processing means cooperate with each other in response to a change in the electroencephalogram signal detected at at least one detection position designated by the designation information. Change the stimulus generated.

  According to the seventh electroencephalogram collection control apparatus, the user can easily find the optimum detection position according to the control target by changing the carrying unit or changing the detection position designation device of the carrying unit. Can be specified. The control target means various results achieved by applying a stimulus to the sensory organ. The control target is, for example, sleep prevention, sleep promotion, tension relaxation, tension increase, concentration increase, and concentration relaxation.

  For example, in the case where prevention of dozing is set as a control target, a detection position designation device storing a detection position suitable for grasping the state of dozing as designation information is mounted on the carrying unit. When the improvement of concentration is a control target, a detection position confirmation device storing a detection position suitable for grasping the state of concentration is stored as designation information on the carrying unit. According to this example, even a general user who has no specialized knowledge can set an optimal detection position according to the control target simply by exchanging the detection position confirmation device.

  In the seventh electroencephalogram collection control apparatus, the seventh electroencephalogram collection control apparatus uses a control method for changing the stimulus generated by the stimulus generation means in accordance with a change in the electroencephalogram signal, and the second signal processing means and the second signal processing means. The signal processing means changes according to the designation information.

  According to the eighth electroencephalogram collection control apparatus, the user can easily perform the first signal processing according to the control target by changing the carrying unit or changing the detection position designation device of the carrying unit. The control method executed in cooperation by the means and the second signal processing means can be changed.

  For example, there are cases in which different stimuli have to be generated by changing the control content for the electroencephalogram signals having the same waveform between the case where prevention of snoozing is a control target and the case where improvement of concentration is a control target. Even in such a case, by acquiring the designation information from the detection position designation device, even a general user who has no specialized knowledge can easily change the processing method according to the control target.

  The ninth electroencephalogram collection control apparatus is the electroencephalogram collection control apparatus according to any one of the first to seventh electroencephalogram collection control apparatuses, wherein the carrying unit transmits the filter information related to the noise removal filter to the first signal processing means and the second signal processing means. And a filter information device for outputting to at least one of them. Further, the first signal processing means and the second signal processing means cooperate to apply the noise removal filter indicated by the filter information to the electroencephalogram signal.

  According to the ninth electroencephalogram collection control apparatus, the noise removal filter can be changed in accordance with the environmental noise, so that the influence on the electroencephalogram signal due to the environmental noise change can be reduced. Thereby, even if the environment changes, the stimulus can be generated accurately. Furthermore, even a general user who does not have expertise on noise can easily select a filter according to the usage environment by changing the carrying unit or changing the filter information device of the carrying unit.

  For example, when the second signal processing means stores in advance an automobile filter that removes electromagnetic waves emitted from an automobile and an aircraft filter that removes electromagnetic waves emitted from an aircraft, and the portable unit is used in an automobile. When a filter information device storing an instruction to apply an automobile filter to an electroencephalogram signal is stored as filter information in the carrying unit and used in an aircraft, filter information storing an instruction to apply the aircraft filter to the electroencephalogram signal Mount the device on the carrying unit. According to this example, even a general user who has no specialized knowledge can easily select a noise removal filter according to the use environment.

  According to the electroencephalogram collection control apparatus of the present invention, even a general person who is not an expert such as a doctor or a researcher can easily operate.

FIG. 1 is a schematic configuration diagram of an electroencephalogram collection control apparatus according to a first embodiment mounted in a convoy cabin and a convoy driver. FIG. 2 is a functional block diagram for explaining the operation of the electroencephalogram collection control apparatus of FIG. FIG. 3 is a perspective view of a cap-type carrying unit according to the second embodiment. FIG. 4 is a front view of the cap-type carrying unit of FIG. 3 attached to the head. FIG. 5 is a VV cross-sectional view of the cap-type carrying unit and the head of FIG. FIG. 6 is a functional block diagram for explaining the operation of the electroencephalogram collection control apparatus according to the second embodiment. FIG. 7 is a functional block diagram for explaining the deformability of the cap-type carrying unit and the operation of the base unit according to the second embodiment.

(First embodiment)
FIG. 1 is a schematic configuration diagram of an electroencephalogram collection control apparatus 1 according to the first embodiment in the case where a subject person collecting electroencephalograms is a convoy driver 2. The electroencephalogram collection control apparatus 1 detects the brain wave of the driver 2 and gives various stimuli to the driver 2. The stimulus given to the driver 2 varies depending on the control target for the driver 2. The control target for the driver 2 includes, for example, sleep prevention, sleep promotion, tension relaxation, tension increase, concentration increase, concentration relaxation, and the like. The control target is not limited to those listed in the present embodiment. Hereinafter, a specific configuration and operation of the electroencephalogram collection control apparatus 1 will be described.

(Schematic configuration of the electroencephalogram collection control apparatus 1)
The electroencephalogram collection control device 1 includes a hat-type carrying unit 10, a base unit 11, and an external control device 12. Note that the present invention is not limited to the same electroencephalogram collection control apparatus 1 as in the present embodiment.

(Schematic configuration of the hat-type carrying unit 10)
The hat-type carrying unit 10 is configured by mounting an electroencephalogram detection device 21 on a cowboy hat 20. The electroencephalogram detection device 21 is composed of a plurality of electrode pads 22 and one flexible substrate 23.

  The plurality of electrode pads 22 are disposed so as to contact the head 3 in a state where the cowboy hat 20 is put on the head 3 of the driver 2. A wiring (not shown) is connected between each electrode pad 22 and the flexible substrate 23. A first signal processing circuit 24 and a first wireless communication unit 25 are mounted on the flexible substrate 23. The electrode pad 22 and the flexible substrate 23 are formed along the shape of the cowboy hat 20. The detailed configuration of the hat-type carrying unit 10 will be described later.

(Schematic configuration of the base unit 11)
The base unit 11 includes a second wireless communication unit 30, a second signal processing circuit 31, a stimulus generation unit 32, and a switch 33 that are mounted in the compartment 4 of the convoy. In addition, the position in the compartment 4 of the various apparatuses which comprise the base unit 11 is not restricted to the position illustrated by this embodiment. The base unit 11 may be formed so that the driver 2 can carry it.

  The second wireless communication unit 30, the second signal processing circuit 31, and the switch 33 are housed together in one box. The base unit 11 may be supplied with power from a convoy, may be driven by a built-in power supply, or may be supplied with power from another device.

  The stimulus generation unit 32 includes a lamp 34, an odor generator 35, a speaker 36, a shock application electrode 37, a temperature controller 38, and a vibration generator 39. The stimulus generator 32 receives the instruction signal from the second signal processing circuit 31 and executes the operation indicated by the instruction signal. The lamp 34 is disposed in a place where the driver 2 can easily enter the visual field, and changes the brightness, color, blinking speed, and the like according to the instruction signal. The odor generator 35 is disposed in the vicinity of the driver 2 and contains a plurality of chemicals that emit various odors in advance. The odor generator 35 changes the kind of odor and the intensity of the odor according to the instruction signal. The speaker 36 is disposed in the vicinity of the driver 2 and changes sound according to the instruction signal. The shock application electrode 37 is attached to the body of the driver 2 and changes the strength of the electric shock, the duration of application, and the like according to the instruction signal. The temperature controller 38 is built in the seat 5 and changes the temperature according to the instruction signal. The temperature controller 38 is configured by, for example, a heater, a blower, a Peltier element, or the like. The vibration generator 39 vibrates according to the instruction signal.

  Note that the lamp 34, the odor generator 35, the speaker 36, the shock application electrode 37, the temperature controller 38, and the vibration generator 39 of the present embodiment are examples of stimulus generation means for stimulating a human sensory organ. Thus, the stimulus generation means is not limited to those listed in this embodiment. The stimulus change realized by the stimulus generating means is not limited to that shown in the present embodiment.

(Schematic configuration of the external control device 12)
The external control device 12 includes a third wireless communication unit 50, a display 51, and an input device 52. The external control device 12 is installed at a location away from the convoy. For example, it is installed in a place where the family of the driver 2 is located, a place where the employer of the driver 2 is present, a traffic management organization, or the like. The external control device 12 may be configured by a general-purpose computer or a dedicated device. The external control device 12 may be a commercial radio that transmits voice, or may transmit a simple or complex signal.

(Operation of the electroencephalogram collection control apparatus 1)
FIG. 2 is a functional block diagram of the electroencephalogram collection control apparatus 1.

  In the hat-type carrying unit 10, first, the plurality of electrode pads 22 detect an electroencephalogram from the head 3 at each installation location and output it as an electroencephalogram signal. Hereinafter, the electroencephalogram signal means an electroencephalogram waveform detected by the electrode pad 22 expressed as an analog signal or a digital signal, an electroencephalogram converted into a frequency, or other signals indicating changes in the electroencephalogram.

  The first signal processing circuit 24 sequentially processes a plurality of electroencephalogram signals output from the plurality of electrode pads 22 by an analog signal processing circuit, an AD (Analog-Digital) conversion circuit, and a digital signal processing circuit. In the present embodiment, the first signal processing circuit 24 converts an analog electroencephalogram signal into a digital signal, and then the second signal processing circuit 31 processes the digital electroencephalogram signal. The first signal processing circuit 24 and the second signal processing circuit 31 only need to function as an electroencephalogram processing means in cooperation, and the sharing of functions is limited to the method shown in the present embodiment. It is not a thing.

  The plurality of electroencephalogram signals processed in the first signal processing circuit 24 are transmitted from the first wireless communication unit 25. Position information indicating the position of the electrode in the head 3 is added to each electroencephalogram signal.

  In the base unit 11, first, the second wireless communication unit 30 receives a plurality of electroencephalogram signals from the first wireless communication unit 25. Examples of the standard used for communication between the first wireless communication unit 25 and the second wireless communication unit 30 include Bluetooth and Zigbee.

  The second signal processing circuit 31 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), various arithmetic ICs (Integrated Circuits), and various input / output interfaces. The second signal processing circuit 31 functions as a filter unit 40, a filter selection unit 41, an electroencephalogram selection unit 42, a combination change unit 43, an instruction signal generation unit 44, and a process change unit 45. For convenience of explanation, the second signal processing circuit 31 is illustrated as being divided into functional blocks corresponding to processing functions. However, the configuration for realizing each functional block need not be structurally separated.

  The filter unit 40 uses a noise filter to reduce noise of the electroencephalogram signal received by the second wireless communication unit 30. As a specific method for removing noise from the electroencephalogram signal, a fixed amount of noise is stored in advance as a value for each of a plurality of environments, and the stored noise amount is subtracted from the waveform detected at the electrode pad 22. The method of doing is illustrated.

  The filter selection unit 41 selects a noise filter applied in the filter unit 40 from a plurality of types of noise filters. The filter selection unit 41 prepares a plurality of noise filters corresponding to the environment in advance. For example, there are a noise filter for reducing noise from a convoy vehicle, a noise filter for reducing noise from a train, and a noise filter for reducing noise from an airplane. In the electroencephalogram collection control apparatus 1 of the present embodiment used in the convoy, the filter selection unit 41 selects a noise filter that reduces noise emitted from the convoy's vehicle. Note that the filter selection unit 41 may be configured to simultaneously select a plurality of noise filters.

  By enabling the filter selection unit 41 to select a filter, the use environment of the electroencephalogram collection control apparatus 1 is not limited to one place, and it becomes easy to use the electroencephalogram collection control apparatus 1 in various environments.

  The electroencephalogram selection unit 42 first removes an electroencephalogram signal containing a lot of noise and an electroencephalogram signal with insufficient signal intensity. By removing an electroencephalogram signal containing a lot of noise and an electroencephalogram signal with insufficient signal intensity, an accurate instruction signal can be generated using an electroencephalogram signal with little noise and strong signal intensity. As a specific selection method, for each detection position of an electroencephalogram signal, a pre-stored electroencephalogram signal and a detected electroencephalogram signal are matched, and the difference between the pre-stored electroencephalogram signal and the detected electroencephalogram signal is allowed. A method of selecting an electroencephalogram signal determined to be within the range is exemplified.

  The electroencephalogram selection unit 42 further selects an electroencephalogram signal to be used for generating the instruction signal from a plurality of electroencephalogram signals with reduced noise. Depending on the control target for the driver 2 in FIG. 1, the combination of the electroencephalogram signals used for generating the instruction signal is different. In other words, the optimal detection position of the electrode pad 22 in the head 3 differs depending on the control target. The correspondence between the electroencephalogram signal and the position of the electrode pad 22 can be known from the position information included in the electroencephalogram signal.

  The combination changing unit 43 changes the combination of the electroencephalogram signals selected by the electroencephalogram selection unit 42. For example, when the first control target is set, the combination is changed to an electroencephalogram signal output from the electrode pad A and the electrode pad B (not shown), and the second control target is set. Changes to a combination of electroencephalogram signals output from the electrode pad C and electrode pad D (not shown). The combination changing unit 43 stores a combination of the electrode pads 22 for each control target in advance.

  By making it possible to change the combination of the electroencephalogram signals used to generate the instruction signal, a single electroencephalogram collection control device 1 can realize a plurality of control targets. That is, since the combination change unit 43 can select an optimal electroencephalogram signal according to the control target, the combination change unit 43 is not limited to one type of control target such as sleep prevention, but also promotes sleep and improves concentration. Multiple types of control targets can be realized.

  The instruction signal generation unit 44 executes an electroencephalogram processing program, generates an instruction signal with reference to the electroencephalogram signal input from the electroencephalogram selection unit 42, and instructs the stimulus generation unit 32 to operate.

  The process change unit 45 switches the electroencephalogram processing program executed by the instruction signal generation unit 44. The process changing unit 45 stores an electroencephalogram processing program in advance for each control target. Each brain wave processing program is set in advance based on the brain wave of the driver 2 measured in advance, general data, and other information.

  The contents of the instruction signal include changing the intensity of the stimulus, changing the interval for applying the stimulus, changing the type of the stimulus, and the like. Abrupt and excessive stimulation impedes driving, so it is preferable to increase the stimulation step by step. For example, when the control target is sleep prevention, the driver 2 does not give a stimulus immediately before going to sleep, but gives a stimulus early when a sign of sleep is detected, and then gradually increases the stimulus. It is preferable to do.

  The switch 33 makes it possible to manually set the use environment and the control target. Based on the use environment set in the switch 33, the filter selection unit 41 selects a filter. Based on the control target set in the switch 33, the electroencephalogram selection unit 42 selects an optimal electroencephalogram signal combination. The instruction signal generator 44 generates an instruction signal according to the control target set in the switch 33. The switch 33 may have any configuration as long as the processing content of the second signal processing circuit 31 can be changed.

  For example, when the control target is set to prevent sleep by the switch 33, the instruction signal generation unit 44 generates an instruction signal based on a brain wave processing program for sleep prevention. As a specific example, when it is determined from the input electroencephalogram signal that the driver 2 is asleep, the lamp 34 is lit red, a strong odor is generated from the odor generator 35, or a warning sound is output from the speaker 36. The output voltage is applied, a strong voltage is applied from the shock application electrode 37, the temperature of the temperature controller 38 is lowered, and the vibration generator 39 is vibrated. By analyzing the electroencephalogram signal, it is possible to issue warnings and warnings to the control subject in a state before completely sleeping, and as a result, danger can be avoided more reliably.

  For example, when the control target is set to promote sleep by the switch 33, the instruction signal generation unit 44 generates an instruction signal based on a brain wave processing program for promoting sleep. As a specific example, when it is determined from the input electroencephalogram signal that the driver 2 cannot sleep, the lamp 34 is turned off, a pleasant odor is generated from the odor generator 35, the volume of the speaker 36 is decreased, a shock is The operation of the application electrode 37 is stopped, the temperature of the temperature controller 38 is increased, and the vibration generator 39 is stopped. In the case where the control target is improvement of concentration, when it is determined from the input electroencephalogram signal that the concentration of the driver 2 is reduced, a strong odor is generated from the odor generator 35.

  The instruction signal generation unit 44 further transmits information on the electroencephalogram signal from the second wireless communication unit 30. Examples of information on the electroencephalogram signal include the electroencephalogram signal itself, the fact that the driver 2 is approaching sleep, the driver's 2 consciousness, the fact that the electroencephalogram signal of the driver 2 meets a predetermined condition, an alarm, etc. Is done.

  The external control device 12 receives information on the electroencephalogram signal in the third wireless communication unit 50. The communication means between the second radio communication unit 30 and the third radio communication unit 50 is, for example, a telephone line, the Internet, a business radio, or a dedicated communication line. The communication between the second wireless communication unit 30 and the third wireless communication unit 50 may be replaced by wired communication. Information about the received electroencephalogram signal is displayed on the display 51 and notified. The administrator confirms information related to the electroencephalogram signal displayed on the display 51, and the administrator inputs an external instruction through the input device 52. Examples of the input device 52 include a keyboard, a mouse, a touch panel, various switches, a microphone, and an imaging device. Examples of the external instruction include an instruction for operating the speaker 36 to hear the administrator's voice to the driver 2, an instruction for setting a use environment and a control target, and the like.

  The external control device 12 may have a function of periodically collecting the brain waves of the driver 2. By collecting the brain waves of the driver 2 periodically, the state of the driver 2 can be statistically managed. Furthermore, by analyzing the collected electroencephalogram and reflecting it in the processing of the instruction signal generation unit 44, a more accurate instruction signal can be generated. The external control device 12 may have a function of collecting information on brain waves of a plurality of persons from the plurality of brain wave collection control devices 1. For example, in a safety management system of a shipping company, it is possible to manage the travel time and stop time of a plurality of vehicles according to the health condition of the plurality of drivers 2 by collecting information on the brain waves of the plurality of drivers 2. As a result, the health management, risk prevention, and safety management of the plurality of drivers 2 can be intensively realized.

  In the electroencephalogram collection control apparatus 1 of the present embodiment, the first signal processing circuit 24 and the second signal processing circuit 31 share processing. The first signal processing circuit 24 of this embodiment mainly plays a role of converting an analog electroencephalogram signal into a digital signal. The first signal processing circuit 24 may be configured to take charge of more processing of the second signal processing circuit 31. However, if the processing of the first signal processing circuit 24 is reduced, the power consumption of the first signal processing circuit 24 can be reduced, and the configuration of the hat-type carrying unit 10 can be simplified. The simpler the configuration of the hat-type carrying unit 10, the easier it is to wear the hat-type carrying unit 10.

  In the electroencephalogram collection control apparatus 1 of the present embodiment, the base unit 11 is mounted in the compartment 4 of the convoy. As another example, the electroencephalogram collection control apparatus 1 may be configured to be carried in a small box. A plurality of base units 11 may be arranged in a plurality of use environments.

  The electroencephalogram collection control apparatus 1 of the present embodiment can be easily handled even by non-professionals such as doctors and researchers.

(Configuration of hat-type carrying unit 10)
In the present embodiment, a head-mounted body on which a plurality of electrode pads 22 are mounted is constituted by a cowboy hat 20 shown in FIG. Since the cowboy hat 20 is easy to visually and tactilely check the mounting position, the control subject can hold the almost same position each time the control subject wears the head, and the head 3 can be operated with the same operation. Can be mounted at almost the same position. Accordingly, by attaching a plurality of electrode pads 22 to the pad cowboy hat 20 in advance, it becomes easy to attach the plurality of electrode pads 22 to appropriate positions each time they are attached. The cowboy hat 20 is almost the same position on the head 3 every time it is worn, so that the wearing position of the electrode pad 22 is stabilized. As a result, an instruction signal can be generated more accurately than in the past. In addition, it is preferable to mark the cowboy hat 20 so that the person to be controlled can easily confirm the mounting position.

  A hairpin is attached to the cowboy hat 20 so that the cowboy hat 20 can be secured to the hair. The fixture for fixing the cowboy hat 20 to the head 3 is not limited to the hairpin, and may be a hairpin, a comb, a net, or the like.

  The wiring connecting the electrode pad 22 and the first signal processing circuit 24 is attached to the edge of the cowboy hat 20. In another embodiment, the wiring may be previously sewn into the cowboy hat 20. By sewing the wiring in the cowboy hat 20 in advance, the possibility of the wiring being cut or disconnected can be reduced.

  The head mounted body is not limited to the cowboy hat 20. The head-mounted body is preferably a thing that the control subject can wear on a daily basis, and examples thereof include glasses, sunglasses, a sun visor, and a hat. If the person to be controlled is a pilot of an aircraft, it is preferable that the hat for the pilot is a head-mounted body. By using a head-mounted body that the control subject wears on a daily basis, it is possible to reduce forgetting to mount, stabilize the mounting position, eliminate discomfort during mounting, and the like.

  The head mounted body is preferably formed of a stretchable material so as not to deviate from the head 3 of the person to be controlled.

  One electrode pad 22 included in the plurality of electrode pads 22 is used to determine a reference voltage (GND or Ref), and the remaining electrode pads 22 are used to detect an electroencephalogram signal. The electrode pad 22 that determines the reference voltage is disposed at the center of the head 3, and the remaining electrode pads 22 are disposed symmetrically on the head 3. As another embodiment, two electrode pads 22 may be combined to detect a potential difference or a current value between each set of electrode pads 22.

  The hat-type carrying unit 10 has a structure in which a plurality of electrode pads 22 are connected to one first signal processing circuit 24. As a power source mounted on the electrode pad 22, a sheet electrode is exemplified.

  The hat-type carrying unit 10 is equipped with a power source such as a solar battery or a rechargeable battery (not shown). By installing a solar battery as a power source, the risk that the hat-type carrying unit 10 will run out of battery can be reduced. The electrode pad 22, the first signal processing circuit 24, and the first wireless communication unit 25 are configured to receive power from a power source mounted on the hat-type carrying unit 10, and thus are separated from the base unit 11. Can be used in different places. Note that the hat-type carrying unit 10 may be supplied with power from the base unit 11 and other devices arranged in proximity. Moreover, the hat-type carrying unit 10 may be thinned by mounting a paper battery. Moreover, the hat-type carrying unit 10 may generate power using heat generated by the human body.

  The electrode pad 22 has a non-contact electrode structure. The electrode pad 22 has a plate-like conductor having a front surface and a back surface, and has a structure in which an insulator and a cloth are sequentially laminated on the surface of the conductor. Since the cloth touches the head 3 when worn, pain and discomfort are less likely to occur than when the metal and insulator touch the skin.

  As another embodiment, the electrode pad 22 may have a structure in which the conductor is brought into contact with the skin. It is preferable to reduce the impedance of the skin by interposing a conductive cloth, conductive paste or the like between the conductor of the electrode pad 22 and the skin.

  A magic table is attached to the back surface of the conductor of the electrode pad 22. By attaching the hook-and-loop fastener, the electrode pad 22 can be easily attached to and detached from the cowboy hat 20. The attachment member that removably attaches the electrode pad 22 to the cowboy hat 20 is not limited to a hook-and-loop fastener. Examples of the attachment member include various buttons, wire fasteners, hook-shaped hooks, and the like. The electrode pad 22 further has a terminal for attaching / detaching the wiring. Since the electrode pad 22 can be removed from the wiring and the cowboy hat 20, the electrode pad 22 can be easily replaced as compared with the case where the electrode pad 22 is fixed to the wiring and the cowboy hat 20. As another embodiment, the electrode pad 22 may be exchanged together with the wiring.

  The electrode pad 22 includes an impedance conversion buffer. The impedance conversion buffer is interposed between the conductor and the wiring. The impedance of the electrode can be reduced by mounting the impedance conversion buffer.

  In the hat-type carrying unit 10 of the present embodiment, all the electronic components including the electrode pad 22, the first signal processing circuit 24, the first wireless communication unit 25, the wiring, and the power supply have a waterproof structure. Since the hat-type carrying unit 10 has a waterproof structure, it is possible to prevent the electronic components from being destroyed by sweat or rain. Since the electroencephalogram collection control apparatus 1 is not intended to collect electroencephalograms as a medical practice, the control subject is not necessarily resting, and is not necessarily in the room. Accordingly, there is a high possibility that the hat-type carrying unit 10 attached to the control subject gets wet, so it is important that the electronic component has a waterproof structure.

  An electromagnetic wave shielding member is attached to the hat-type carrying unit 10. Examples of the electromagnetic wave shielding member include a noise shielding film and a noise shielding tape. By covering part or all of the electronic components including the electrode pad 22, the first signal processing circuit 24, the first wireless communication unit 25, the wiring, and the power supply with the electromagnetic wave shielding member, it is possible to accurately detect the electroencephalogram. It becomes. If the use environment of the electroencephalogram collection control apparatus 1 is clear in advance, it is preferable to select an electromagnetic wave shielding member that is optimal for reducing noise generated in the use environment.

(Second Embodiment)
FIG. 3 is a perspective view of a cap-type carrying unit 60 according to the second embodiment. The cap type carrying unit 60 corresponds to a modification of the hat type carrying unit 10 according to the first embodiment. About the structure of the base unit 11 and the external control apparatus 12, the description which overlaps with 1st Embodiment is abbreviate | omitted.

  The cap-type carrying unit 60 includes a cap 61, two independent electroencephalogram detection devices 62, a position confirmation device 63, a detection position designation device 64, and a filter information device 65.

(Structure of the cap-type carrying unit 60)
The cap 61 is composed of a hollow substantially hemispherical main body 70 and a substantially planar collar 71. The main body 70 has an annular end edge portion 74 that is a common end portion of the substantially hemispherical outer surface 72 and the substantially hemispherical inner surface 73. The collar 71 is formed in a crescent shape. The entire crescent-shaped short side of the collar 71 is sewn to the end edge portion 74 of the main body 70, and the crescent-shaped long side of the collar 71 is disposed so as to protrude toward the outside of the main body 70. The position confirmation device 63, the detection position designation device 64, and the filter information device 65 are mounted on the outer surface 72 of the main body 70. Two independent electroencephalogram detection devices 62 are attached to the inner surface 73 of the main body 70.

  The outer surface 72 of the main body 70 is covered with an electromagnetic wave shielding member (not shown). The cap 61 shields noise that hinders detection of brain waves, and transmits electromagnetic waves used for communication between the first wireless communication unit 25 and the second wireless communication unit 30. Examples of the noise that hinders detection of an electroencephalogram include an electromagnetic wave having a frequency included in the electroencephalogram. Examples of the electromagnetic wave shielding member include sheet metal, metal mesh, and metal ink. The electromagnetic wave shielding member may be formed so as to cover the inner surface 73 of the main body 70, may be sandwiched between the outer surface 72 and the inner surface 73, and may be woven as a fiber of the cap 61. . A plurality of caps 61 may be prepared according to the environment in which the cap-type carrying unit 60 is used, and each cap 61 may be configured to shield noise having different frequencies.

  4 is a front view of the cap-type carrying unit 60 and the head 3 when the cap-type carrying unit 60 of FIG. For convenience of explanation, as indicated by a cross-shaped arrow in FIG. 4, the vertical direction along the paper surface viewed from the front is the vertical direction of the cap-type carrying unit 60 and the head 3, and the horizontal direction along the paper surface viewed from the front is the cap type. It is set as the left-right direction of the carrying unit 60 and the head 3. Further, the direction from the paper surface to the vertical front side is defined as the front direction, and the direction from the paper surface to the vertical back side is defined as the rear direction.

  When the cap-type carrying unit 60 faces the inner surface 73 and the end edge 74 of the main body 70 downward and the collar 71 is arranged in front of the main body 70, the cap-type carrying unit 60 has a virtual plane 100 along the vertical direction and the front-rear direction. It is formed to be substantially bilaterally symmetric as the center.

  The long side central portion 75 of the collar 71 is located at the foremost side. The two independent electroencephalogram detection devices 62 are positioned so as to be symmetrical in front of the forehead 6. The position confirmation device 63 is mounted on the top of the main body 70. The detection position specifying device 64 and the filter information device 65 are mounted near the top of the main body 70.

  A person who wears the cap-type carrying unit 60 can put the cap-type carrying unit 60 in an appropriate position by positioning the long side central portion 75 of the collar 71 below the center of the forehead 6. In addition, by attaching at least one of a color, a shape, and other landmarks to the cap 61, the driver 2 can easily recognize the position of the cap 61 by at least one of tactile sensation, vision, and other senses. it can. By marking the cap 61, the cap 61 can be easily mounted at a predetermined position on the head 3 even if it is not an expert. In the present embodiment, the long side central portion 75 of the collar 71 functions as a mark.

  FIG. 5 is a cross-sectional view of the cap-type carrying unit 60 and the head 3 taken along the line VV in FIG.

  Two positioning portions 76 are fixed to the main body 70 of the cap 61. Each positioning portion 76 is fixed to the inner surface 73 of the main body 70 so as to overlap each independent type electroencephalogram detection device 62 shown in FIG. As shown in FIG. 5, the positioning portion 76 has a back surface 77 that is in close contact with the inner surface 73 of the cap 61 and a front surface 78 that is processed so as to function as a surface fastener.

  The independent electroencephalogram detection device 62 includes a circuit board 80 formed of a flexible substrate, an electrode portion 81 formed of a conductive cloth, and a thin film attachment / detachment portion 82 processed so as to function as a surface fastener. It has a thin disk shape. The circuit board 80 is sandwiched between the electrode part 81 and the attaching / detaching part 82.

  The circuit board 80 is curved in advance along the inner surface 73 of the cap 61. Since the circuit board 80 is curved in advance, the possibility that the forehead 6 is damaged by the circuit board 80 is reduced as compared with the case where the circuit board 80 is a flat plate. Furthermore, since the circuit board 80 is sandwiched between the electrode part 81 and the attaching / detaching part 82, the circuit board 80 can be hardly destroyed when the independent electroencephalogram detection device 62 is replaced and used. The circuit board 80 is mounted with circuits that function as the first signal processing circuit 24 and the first wireless communication unit 25 of the first embodiment shown in FIG.

  The electrode unit 81 in FIG. 5 detects an electroencephalogram, and inputs the detected electroencephalogram to the circuit board 80 as an analog electroencephalogram signal. The electrode part 81 has a smooth surface without protrusions. Since the conductive cloth is softer than the metal plate, it is less likely to damage the forehead 6 than the metal plate. Since the electrode portion 81 that is softer than the circuit board 80 is sandwiched between the circuit board 80 and the forehead 6, there is little possibility that the forehead 6 is damaged by the circuit board 80.

  The surface fastener of the detachable portion 82 is formed to be detachable from the surface fastener of the positioning portion 76 of the cap 61. A person who wears the independent electroencephalogram detection device 62 on the cap 61 can confirm the attachment position of the independent electroencephalogram detection device 62 using the positioning portion 76 as a mark. The electroencephalogram detection device 62 can be replaced.

  Since the position of the cap-type carrying unit 60 with respect to the head 3 can be positioned by the long side central portion 75 of the collar 71, and the position of the independent electroencephalogram detection device 62 with respect to the cap 61 can be positioned by the positioning portion 76, the cap Even when the mold carrying unit 60 is repeatedly attached and detached, the electrode portion 81 can be brought into contact with substantially the same position of the head 3.

  Since the electrode portion 81 is in surface contact with the forehead 6, the pressure applied to the forehead 6 from the electrode portion 81 is smaller than when the electrode portion 81 is in point contact, and the cap-type carrying unit 60 is attached to the head 3. There is little risk of damaging the head 3 when attaching and detaching.

  When detecting brain waves outside a medical institution such as driving a convoy, operating an aircraft, or housework, if an unexpected accident such as contamination or failure of the independent brain wave detection device 62 occurs, The independent electroencephalogram detection device 62 must be replaced. According to the cap-type carrying unit 60 of the second embodiment, the independent electroencephalogram detection device 62 can be exchanged while accurately positioning even if it is not an expert such as a user.

  In the present embodiment, a hook-and-loop fastener is used as an attachment / detachment mechanism that makes the independent electroencephalogram detection device 62 attachable / detachable to / from the cap 61, but other attachment / detachment mechanisms may be adopted. Examples of the attaching / detaching mechanism include various buttons, hook-shaped hooks, and wire fasteners. The cap-type carrying unit 60 of this embodiment includes two positioning units 76 and two independent electroencephalogram detection devices 62, but may include more positioning units 76 and independent electroencephalogram detection devices 62. Good.

  The detection position designation device 64 and the filter information device 65 are each configured by a circuit board (not shown) and a cloth covering the circuit board. The cloth covering the circuit board has a hook-and-loop fastener structure, and can be attached to and detached from other hook-and-loop fasteners previously mounted on the outer surface 72 of the main body 70.

  In addition, by attaching at least one of a character, a color, a shape, and other marks to the independent electroencephalogram detection device 62, the mounting position of each independent electroencephalogram detection device 62 with respect to the plurality of positioning units 76 can be distinguished. Furthermore, the base unit 11 can distinguish the positions of the plurality of independent electroencephalogram detection devices 62 by transmitting an identification signal from each independent electroencephalogram detection device 62. In addition, the identification signal is transmitted from each independent type electroencephalogram detection device 62 by comparing the electroencephalogram signal received in the second wireless communication unit 30 with the electroencephalogram signal stored in advance in the second signal processing circuit 31. Alternatively, the detection position of the electroencephalogram signal may be specified.

  FIG. 6 is a functional block diagram for explaining operations of the cap-type carrying unit 60 and the base unit 11 according to the second embodiment.

  Each independent electroencephalogram detection device 62 includes an electrode unit 81, a first signal processing circuit 24, and a first wireless communication unit 25. Accordingly, each first signal processing circuit 24 inputs an electroencephalogram signal from one electrode portion 81 and performs signal processing.

  The position confirmation device 63 includes a scanning unit 90 and a fourth wireless communication unit 91.

  The scanning unit 90 detects the position of each independent electroencephalogram detection device 62 by scanning radio waves. An appropriate reference electrode is disposed on the cap 61. The scanning unit 90 detects the position of each independent electroencephalogram detection device 62 as a relative position with respect to the reference electrode.

  Various methods can be employed as a method for the scanning unit 90 to grasp the position of each independent electroencephalogram detection device 62. For example, by transmitting radio waves while changing the directing direction from the transmitting antenna and receiving reflected waves while changing the receiving direction by the receiving antenna, the flying direction and flying distance of the radio waves reflected by the independent brain wave detection device 62 The method of detecting is illustrated. Also, a method of measuring the flying direction and flying distance of the radio wave output from the first wireless communication unit 25 of each independent brain wave detection device 62 in the scanning unit 90 is exemplified. Further, a method of detecting the delay amount of radio waves transmitted from the plurality of scanning units 90 by the independent brain wave detection device 62 is exemplified. The scanning unit 90 can be realized by various configurations as long as the position of the electrode unit 81 can be grasped. Scanning is a concept that includes changing at least one of the reception direction and the transmission direction for at least one of electromagnetic waves and ultrasonic waves.

  The position of each independent electroencephalogram detection device 62 detected by the scanning unit 90 is transmitted from the fourth wireless communication unit 91 as position information. The position information may be transmitted to the first signal processing circuit 24, or may be transmitted to the second wireless communication unit 30 together with information for identifying the independent electroencephalogram detection device 62. In any case, each brain wave signal is accurately associated with position information indicating the position where the brain wave signal is measured.

  By providing the cap confirmation unit 63 in the cap-type carrying unit 60, it is possible to associate the electroencephalogram signal with the position information even if the independent electroencephalogram detection device 62 does not store the position information. That is, even if the mounting positions of the two independent electroencephalogram detection devices 62 are interchanged, it is possible to associate the electroencephalogram signal with the position information. Therefore, it is not necessary for the user to check the mounting position of each independent electroencephalogram detection device 62, and a general user without specialized knowledge can easily attach the independent electroencephalogram detection device 62.

  The detection position designation device 64 transmits the designation information stored in the designation information storage unit 92 from the fifth radio communication unit 93 to the second radio communication unit 30. The designation information is information indicating sleep prevention, sleep promotion, and other control targets. The second signal processing circuit 31 notifies the combination change unit 43 and the process change unit 45 shown in FIG. 2 of the control target notified by the designation information. Note that the designation information may not be a control target as long as the designation information includes contents instructing a combination of electroencephalogram signals. For example, the designation information may designate some positions of the electrode unit 81. In this case, the electroencephalogram selection unit 42 selects an electroencephalogram signal detected by the electrode unit 81 mounted at the designated position based on the position information.

  By providing the cap-type carrying unit 60 with the detection position specifying device 64, the control target can be set without using the switch 33. Note that the switch 33 and the detection position specifying device 64 may coexist. By preparing in advance a plurality of detection position designation devices 64 storing different control targets as designation information, the user can easily change the control target simply by replacing the detection position designation device 64. In addition, if a plurality of cap-type carrying units 60 storing different control targets as designation information are prepared, the control target can be easily changed simply by replacing the cap-type carrying unit 60.

  The filter information device 65 transmits the filter information stored in the filter information storage unit 94 from the sixth wireless communication unit 95 to the second wireless communication unit 30. The filter information is information indicating an automobile, an aircraft, or other usage environment. The second signal processing circuit 31 notifies the filter selection unit 41 shown in FIG. 2 of the filter information notified by the filter information. Note that the filter information may not be the usage environment as long as the filter information includes the content specifying the noise filter used in the filter unit 40. For example, the filter information may be information directly instructing to select a noise filter that reduces noise generated from a convoy vehicle. The filter information may be numerical data or a function that is referred to as a noise filter.

  By providing the cap-type carrying unit 60 with the filter information device 65, the use environment can be set without using the switch 33. Note that the switch 33 and the filter information device 65 may coexist. By preparing in advance a plurality of filter information devices 65 storing different usage environments as filter information, the user can easily change the control target simply by replacing the filter information device 65. If a plurality of cap-type carrying units 60 storing different use environments as filter information are prepared, the use environment can be easily changed by simply replacing the cap-type carrying unit 60.

  FIG. 7 is a functional block diagram showing a modified example of the cap-type carrying unit 60 and the base unit 11. The modified cap-type carrying unit 60 includes two passive position confirmation devices 66 that store position information so that they can be read from the outside. The passive position confirmation device 66 is an IC card, for example, and is configured to be able to read position information from outside by wireless communication. One passive type localization device 66 is arranged so as to overlap one independent type electroencephalogram detection device 62 shown in FIG. 4, and the other passive type localization device 66 is the other independent type electroencephalogram detection device shown in FIG. 62 is arranged so as to overlap with 62. Each passive position confirmation device 66 is disposed between the positioning unit 76 and the main body 70 shown in FIG. The two passive position confirmation devices 66 each store different position information.

  Each independent electroencephalogram detection device 62 reads position information from the passive position confirmation device 66 arranged closest by the reading unit 67. Each first signal processing circuit 24 includes position information in an electroencephalogram signal and transmits it from the first wireless communication unit 25.

  The independent electroencephalogram detection device 62 and the passive position confirmation device 66 correspond one-to-one, and the proximity of the independent electroencephalogram detection device 66 and the passive position confirmation device 66 makes it possible to accurately associate the position of the electrode unit 81 with the detected electroencephalogram signal. It becomes possible.

  The subject of control of the present invention is not limited to a convoy driver, but is an agricultural truck driver, an aircraft pilot, a car driver, a truck driver, a bus driver, a taxi driver, other vehicle drivers, and a railway driver. This includes hands, pilots, guardmen, ship steers, army and navy guards, night shift workers, and controllers. Although the present invention is suitable when the control subject is a person engaged in a profession that must not sleep, a wide range of people can be controlled.

  The present invention is not limited to the embodiment described above. The present invention can be variously modified and combined without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 EEG collection control apparatus 2 Driver 3 Head 4 Cabin 5 Seat 6 Forehead 10 Hat-type carrying unit 11 Base unit 12 External controller 20 Cowboy hat 21 Electroencephalogram detection device 22 Electrode pad 23 Flexible board 24 First signal processing circuit 25 first wireless communication unit 30 second wireless communication unit 31 second signal processing circuit 32 stimulus generation unit 33 switch 34 lamp 35 odor generator 36 speaker 37 shock application electrode 38 temperature regulator 39 vibration generator 40 filter unit 41 Filter selection unit 42 EEG selection unit 43 Combination change unit 44 Instruction signal generation unit 45 Process change unit 50 Third wireless communication unit 51 Display 52 Input device 60 Cap-type carrying unit 61 Cap 62 Independent EEG detection device 63 Position confirmation device 64 Detection position designation device 65 Filter information device 66 Passive position confirmation device 67 Reading unit 70 Main body 71 Brim 72 Outer surface 73 Inner surface 74 End edge portion 75 Long side center portion 76 Positioning portion 77 Back surface 78 Front surface 80 Circuit board 81 Electrode portion 82 Attachment / detachment portion 90 Scanning portion 91 First 4 wireless communication unit 92 designation information storage unit 93 fifth wireless communication unit 94 filter information storage unit 95 sixth wireless communication unit 100 virtual plane

Claims (9)

An electrode for detecting an electroencephalogram and outputting an electroencephalogram signal corresponding to the electroencephalogram, a first signal processing means for signal processing the electroencephalogram signal, and a first wireless communication means connected to the first signal processing means A carrying unit comprising: an electroencephalogram detection device comprising: a head-mounted body that is mounted on the head of a human body with the electroencephalogram detection device mounted thereon;
A second wireless communication means for wirelessly communicating with at least the first wireless communication means; a stimulus generating means for generating a stimulus for a sensory organ of a human body; and the electroencephalogram connected to the second wireless communication means. A base unit comprising: second signal processing means for changing a stimulus generated by the stimulus generating means in accordance with a change in the electroencephalogram signal by signal processing a signal together with the first signal processing means; Comprising
EEG collection control device. Comprising a plurality of the electroencephalogram detection devices,
Each of the electroencephalogram detection devices is configured to be detachable from the head-mounted body,
The electroencephalogram collection control apparatus according to claim 1. The carrying unit has a first attachment / detachment member mounted on the head-mounted body as an attachment position of the brain wave detection device on the head-mounted body, and the brain wave detection device is detached from the first attachment / detachment member. A second detachable member that is detachably attached;
The electroencephalogram collection control apparatus according to claim 2. The carrying unit further includes a position confirmation device that outputs position information indicating the position of the electrode in the head-mounted body to at least one of the first signal processing means and the second signal processing means. ,
The electroencephalogram collection control apparatus according to any one of claims 1 to 3. The position confirmation device detects the position of the electrode in the head-mounted body by scanning at least one of electromagnetic waves and ultrasonic waves;
The electroencephalogram collection control apparatus according to claim 4. A plurality of the electroencephalogram detection devices, and a plurality of the position confirmation devices,
The position confirmation device stores the position information so as to be readable from the outside,
Each of the electroencephalogram detection devices reads position information from at least one of the position confirmation devices;
The electroencephalogram collection control apparatus according to claim 4. Comprising a plurality of the electroencephalogram detection devices,
The carrying unit outputs designation information for designating at least one detection position from a plurality of detection positions for detecting the electroencephalogram signal to at least one of the first signal processing means and the second signal processing means. It further has a detection position designation device,
The first signal processing means and the second signal processing means cooperate with each other in response to a change in the electroencephalogram signal detected at the at least one detection position designated by the designation information. Changing the stimulus generated by the generating means;
The electroencephalogram collection control apparatus according to any one of claims 1 to 6. The control method for changing the stimulus generated by the stimulus generation unit according to the change of the electroencephalogram signal is changed by the first signal processing unit and the second signal processing unit according to the designation information. Item 8. The electroencephalogram collection control apparatus according to Item 7. The carrying unit further includes a filter information device that outputs filter information related to a noise removal filter to at least one of the first signal processing means and the second signal processing means,
The first signal processing means and the second signal processing means cooperate to apply a noise removal filter indicated by the filter information to the electroencephalogram signal;
The electroencephalogram collection control apparatus according to any one of claims 1 to 8.