JPH08234805A - System and device for making worker comfortable - Google Patents

Abstract

PURPOSE: To automatically prevent or improve the reduction of the degree of comfortability of a worker by selecting organic information out of an organic information sensor group and analyzing ratio or difference between this information and a reference value set in advance. CONSTITUTION: Analytic means 1b and 1d are provided to calculate the degree of comfortability of worker corresponding to the kind of a sensor selected by detecting means 1a and 1c. Then, a comparing means 1e compares both analytic values 1 and 2 of the analytic means 1b and 1d. A comparison reference corresponding to the sensor selected out of the organic information sensor group is used for the reference of this comparison. For every comparison reference, whether it is on the conditions that the degree of comfortability of worker himself is settled within the allowance or it is on the conditions that the degree of comfortability exceeds the allowance. Thus, a stimulus applying means is operated based on the signal of information of provided comfortability judgement. As a result of this operation, this system is operated to vary the conditions so that the worker can comfortably work.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mainly for the comfort of an operator, such as accumulation of fatigue, decrease in arousal level, decrease in concentration level, increase in body temperature, increase in sweat rate, etc. Whether or not the work environment is positively determined by directly determining the worker's stimulus-giving means based on the result of the determination, or the physical condition of the work. The present invention relates to a worker comfort system and a device thereof that promote comfort of the worker.

[0002]

2. Description of the Related Art Various physical strengths of a subject can be measured by applying a load to the subject by various exercises and measuring blood pressure and heart rate before and after the load is applied.
It has been done as a part of physical fitness measurement.

[0003]

However, the magnitude of the physical strength of the subject at the time of measuring the physical strength is determined based on the experience and knowledge of the person who is involved in the medical institution. There is a problem in that the determination results vary. Furthermore, there has not yet been proposed a system that uses these judgment results to promote the comfort of workers.

According to the present invention, such a conventional manual operation or the sensitivity of each person is used to automatically estimate the deterioration of the comfortable environment without any manual operation, and the operator is directly acted on in correspondence with the estimated information. The purpose of this is to comfortably change the worker by activating the stimulus applying means for performing the above or by taking active measures such as positively changing the work environment.

[0005]

In order to achieve the above object, a worker comfort system of the present invention is a detection means selectively used from a biological information sensor group for measuring the physical condition of the worker, The biometric information analysis means for calculating the comfort level of the operator by associating the value detected by the means with each sensor, the means for recording the analysis result obtained from the analysis means, and the detection means for a predetermined period. The analysis result 1 obtained based on the information detected before is compared with the analysis result 2 obtained based on the information detected after a predetermined period of time, and when the ratio of the latter and the former is a certain value or more, the work is performed. If it is determined that the load on the worker's work is within the allowable range and is within a comfortable range, and the ratio of the latter to the former is less than a certain value, the load on the worker's work exceeds the allowable range and is uncomfortable. Or the latter If the difference between the former is greater than a certain value, it is determined that the load on the worker's work is within the allowable range, and if the difference between the latter and the former is less than a certain value, the load on the worker's work is within the allowable range. It is judged that it is overly large and uncomfortable, and based on these judgment results, the pre-selected stimulating system is activated to automatically control the comfort of the operator's environment. I am trying.

According to another aspect of the worker comforting apparatus of the present invention, the detecting means selectively used from the biological information sensor group for measuring the physical condition of the operator and the value detected by the means are used. Biological information analysis means for calculating the comfort level of the operator corresponding to each sensor, and the analysis result obtained from the analysis means and a reference value necessary for obtaining preset comfort are compared, and the latter. If the former ratio is above a certain value,
It is determined that the load on the worker's work is comfortable within the allowable range, and if the ratio of the latter to the former is less than a certain value, the load on the worker's work exceeds the allowable range and is uncomfortable. Or, if the difference between the latter and the former is more than a certain value, it is judged that the load on the worker's work is within the allowable range and is comfortable, and if the difference between the latter and the former is less than a certain value, the worker's The load for work exceeds the permissible range, and is composed of a judgment means for judging the comfort of the worker which is judged to be uncomfortable and a preselected stimulus applying means which operates based on the judgment result. Based on the determination result of the uncomfortable state in the obtained determination results, by automatically operating the stimulus applying means, the comfort is automatically maintained without changing the work load. There is.

[0007]

[Function] For the purpose of measuring the physical condition of the worker to be measured, one or a plurality of bioinformation sensors such as sweat rate, skin temperature, myoelectric data, heartbeat, blood pressure, and respiration rate are selected and obtained. Prepare detection means. If, for example, the amount of perspiration, skin temperature, or myoelectric data is detected, the value detected by this detection means is compared with each reference value indicating a predetermined comfortable range, and the difference value is calculated individually. By doing so, an analytical value that objectively determines the worker state is obtained.

On the other hand, the comfortable state of the operator is multi-faced by combining the data using a plurality of independent data. For example, even if the amount of sweating slightly exceeds the permissible amount from the standard value, the electromyographic data shows a value larger than the standard value, and obviously the muscle is used more than the normal work. In the situation where it is found that the amount of perspiration is determined to be within the appropriate range. The physiological condition of the worker is determined from such a plurality of data, and the calculation result of automatically and correctly determining the comfort of the worker is obtained.

The stimulus applying means is operated based on the signal of the information for comfort judgment obtained as described above. Examples of this operation include stimulation of vases, emission of scent, emission of cold air, emission of warm air, increase / decrease of BGM volume from speaker, change of BGM music type, change of temperature of indoor air conditioner, change of humidity or change of seat distribution. A device for changing environmental conditions that are directly related to the living body of various workers. As a result of this operation, it acts so as to be variable so that the worker can work comfortably.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. [Description Regarding FIG. 1] FIG. 1 is a block diagram showing an outline of a worker comfort system of the present invention. In the figure, reference numeral 1a denotes a sensor in which one or a plurality of sensors are selected from the biological information sensor group according to need, and is a detection unit formed by the selected sensor. Reference numeral 1b is an analysis unit that calculates the comfort level of an operator corresponding to the type of sensor selected by the detection unit and the utilization unit of the result detected by the detection unit.

1c is the same detecting means as 1a, and the difference from the detecting means 1a is that the time for referring to the detection result is the detecting means.
1a is before 1c, and the time difference between the two corresponds to the worker's rest time.

1d is the same analysis means as the analysis means 1b,
The information from the sensor obtained from the detecting means 1c is analyzed, and the analyzing means 1b can be configured to be duplicated if necessary. 1e is a comparison means for comparing both the analysis value {1} of the analysis means 1b and the analysis value {2} from the analysis means 1d, and the analysis value {1} was stored in the storage means 1h until the comparison was made. As soon as the analysis value {2} analyzed and output by the analysis means 1d is input to the comparison means using the value, the analysis value {1} stored in the storage means 1h.
Is supplied. Then, as the comparison reference, the comparison reference corresponding to the sensor selected from the biological information sensor group is used. The details of the comparison criteria corresponding to each sensor type will be described later, but the purpose of each of the comparison criteria is to determine whether the operator's comfort level is within the allowable range or exceeds the allowable range. It is for doing.

Reference numeral 1f is a first instruction that gives an arbitrary instruction corresponding to the case where the operator's comfort level is out of the allowable range and the operator is in an uncomfortable state among the answers obtained by the comparison means 1e. It is a means. 1g is a second instruction means for giving an arbitrary instruction corresponding to the case where the operator's comfort level is within the allowable range among the answers obtained by the comparison means 1e.

[Description of FIG. 2] FIG. 2 is a block diagram showing an embodiment for carrying out the work adequacy system of the present invention. In the figure, 2a is a biological information sensor group for estimating the degree of physical condition from the fatigue state and health state of the worker, and specific sensors include a skin temperature sensor, a skin potential sensor, a sweat rate sensor (resistance Sensor) A blood pressure sensor, an electrocardiographic sensor, a blood flow sensor of a leg, an electroencephalogram sensor, a blink sensor, a muscle voltage sensor, a respiration sensor, and the like.

Reference numeral 2b is a control device using a computer (or a central processing unit having a single function in advance). 2c is a program memory for supplying a program based on an instruction from the control device 2b. A data memory 2d stores data based on an instruction from the control device 2b and supplies the stored data.

Reference numeral 2e is a group of biological condition reporting and alarm devices that are controlled based on the results obtained from the control device 2b. Specific examples include a light, a speaker, a scent generator, a blower, and a data display device. CRT using the liquid crystal panel of

Reference numeral 2f is a biostimulator which is controlled based on the result obtained from the control device 2b. Specific examples include a pot stimulator, a low frequency transmitter, a scent generator, a BGM generator, Examples include hot compresses and cold compresses. Reference numeral 2h denotes an operation control device that is controlled based on the result obtained from the control device 2b, and specific examples thereof include a brake device, an automatic transmission device, and a throttle opening adjustment device. Reference numeral 2i is a work machine controlled based on the result obtained from the control device 2b, and one example thereof is a machine stop operation. In the operation control device 2h, the operation of braking, the operation of lowering the shift stage and applying the engine brake, the operation of reducing the throttle opening, and the operation of stopping the working machine are selectively used.

An example of the operation of the optimization system configured as above will be described below. An electrocardiographic sensor is selected from the biological information sensor group 2a. This electrocardiographic sensor is provided so that it can be sensed by the operator by the method described later. The signal from this sensor and the signal corresponding to the type that this sensor is an electrocardiographic sensor are the control device 2b.
Is input to The control device 2b uses the information to make the first
Then, a program for analyzing the electrocardiographic sensor is selected from the program memory 2c, and the control device 2b operates according to the selected program. In this program, the process of analyzing the signal obtained from the electrocardiographic sensor, the process of temporarily saving this analysis value in the data memory 2d, and the process of measuring again according to the instruction after the break from the time of the first analysis, The process of extracting and comparing the second analysis value and the first analysis value from the data memory 2d, the process of determining this comparison standard, and the command signal 2J for performing various operations according to the comparison result determined by this comparison standard. Have a process to do.

The command signal 2J is a biological condition report alarm device group 2e,
It is a signal for controlling the biostimulation device 2f, the environment changing device group 2g, the operation control device 2h and the work machine 2i, and the instructions of the above-mentioned inner operation control device 2h and work machine 2i are configured to select either one. ing.

[Description of FIG. 3] This is an embodiment in which the fatigue accumulation determination system at the time of work is applied to a two-wheeled vehicle which is one of the transportation equipment. It shows the outline of the two-wheeled vehicle in a riding state. [Name of each part in FIG. 3] 3 is a motorcycle main body, 3A is a front wheel, 3B is a front fork, 3C is a frame, 3E is an engine assembly, 3F is a crank chamber, 3G is a spark plug, 3H is a starting motor, and 3K ignition. Control circuit, 3L receiver, 3M control device, 3N display device, 3N 'alarm device, 3O driver, 3P helmet, 3Q boots and 3R and 3S transmitter, 3T
Is a brake and 3U is a pot stimulator.

[Description of Relationship between Parts in FIG. 3]
In the motorcycle body 1, a front fork 3B, which is a support for the front wheel 3A, is rotatably attached to a frame 3C that supports the entire vehicle body. An engine assembly 3G is provided at the center of the frame 3C. This engine assembly 3G
Has at least a starting motor 3H and an ignition plug 3G, and this ignition plug 3G is controlled by an ignition control circuit 3K.

On the other hand, a driver 3O who is a worker wears a helmet 3P on the head and wears boots 3Q on the legs. The details will be described later with reference to FIG. A blink sensor and a biometric sensor are provided inside the boot 3Q, and transmitters 3R and 3S for transmitting signals from these sensors by radio waves are provided on the outside of each boot.

Further, the receiver 3L, the control device 3M, the display device 3N
And the alarm device 3N 'are fixed to the frame 3C,
The display device 3N and the alarm device 3N 'are installed facing the driver 3O side. Now, the radio waves transmitted from these transmitters are received by the receiver 3L, and the received signals are the control device 3M.
Then, the output signal of the control device 3M is connected to the respective inputs of the display device 3N, the alarm device 3N 'and the ignition control circuit.

The brake 3T is a machine stop 2i of the work machine shown in FIG.
The brake is basically locked at the time when the vehicle is started again after the passenger gets off the vehicle and takes a break. Also, if the user desires to unlock, it is immediately unlocked.

The pot stimulator 3U is a stimulating means corresponding to the biostimulator 2f of FIG. 2, and basically operates when it is determined that the operator's comfort shown in FIG. 1 is lost and the uncomfortable state 1f. In addition to having a function of giving an alarm or warning that the fatigue of the worker exceeds a certain level, it also functions as a means for recovering the fatigue.

[Description Regarding FIG. 4] Details of the helmet 3P shown in FIG. 3 will be described with reference to FIG. FIG. 4 (A)
Is a partial sectional side view, and (B) is a central vertical line sectional view of (A).

[Name of each component in FIG. 4] 4P is a helmet, 4A is a blink sensor, 4B is a hood cover,
4D is EEG sensor, 4E is blood flow sensor, 4R is transmitter, 4C
Is a helmet body, 4F is a hard layer, and 4G is a cushion layer.

[Description of Relationship between Parts in FIG. 4]
As shown in the drawing, the helmet 3P is composed of a CCD image sensor and a pattern recognition circuit in combination.
A hood cover 4B equipped with a blinking sensor 4A and an electroencephalogram sensor 4D at the top of the inner surface, a blood flow sensor 4E is provided at a position corresponding to the vicinity of the user's neck, and an oscillator 4R is provided near the outer peripheral rear side. Helmet body that is attached
Composed of 4C and. Further, the structure of the helmet, as clearly shown in the cross section, a hard layer 4F on the outermost surface, a cushion layer 4G is provided below it, and the above-mentioned brain wave sensor 4D is embedded at the approximate center top of this cushion layer 4G. There is. Note that these sensors can be freely selected and changed from the biological information sensor group shown in FIG. 2 as needed.

[Description Regarding FIG. 5] The boot shown in FIG.
Details of 1Q will be described with reference to FIG. [Name of Each Component in FIG. 5] As shown in the drawing, 3Q is a boot, 5A is a biometric sensor, 5B is a cushion material, 5C is an outer peripheral wall, and 3R is a transmitter. [Related description of each part in FIG. 5] As shown in the drawing,
A blood flow rate sensor 5A is provided on the inner wall of the boot 3Q at a position corresponding to the vicinity of the calf, and the blood flow rate sensor 5A is embedded by a cushion material 5B to soften the feeling of contact with the legs. The sensor wrapped in the cushion material 5B is further mounted on the inner wall surface of the outer peripheral wall 5C of the boot. The result of detection by the blood flow sensor 5A is connected to the transmitter 3R by a signal cable, and the transmitter 3R is tuned according to the reception frequency of the receiver 3L. Note that this sensor can be freely selected and changed from the biological information sensor group shown in FIG. 2 as needed.

[Description Regarding FIG. 6] FIG. 6 is a partial perspective view showing a specific example of data display in the biological condition reporting and warning device group 2e shown in FIG. 2 when it is loaded on another motorcycle. . [Name of each component in FIG. 6] 6A and 6B are left and right handles, 6C is rubber, 6D is a pressure sensor, 6E is a hood cover, 6F is a display unit, 6G is an alarm speaker, 6F1 is a speedometer, and 6F2 is a tachometer. , 6F3 is a warning light, 6F4 is a fatigue rate display and 6F5 is a heart rate display.

[Description of Relationship between Parts in FIG. 6]
As shown in the drawing, pressure sensors 6D are provided inside the non-slip rubber 6C of the left and right handles 6A and 6B, and the hood cover 6E provided between the left and right handles,
The display unit 6F and the alarm speaker 6G are provided. In addition, the display section 6F has a speedometer 6F1 and a tachometer 6F2.
, Warning lamp 6F3, fatigue rate display 6F4 and heart rate display 6F5 are provided.

Now, these sensors and display devices are
For example, in the case of the block diagram of FIG. 2, the sensor 6D is one of the biological information sensor groups 2a, and the warning lamp 6F3 and the alarm speaker 6G correspond to the biological condition reporting / alarm device group 2e. Further, the data obtained on the basis of a predetermined program by the control device 2b is digitally displayed on the fatigue frequency display 6F4. These display devices are basically designed to be perceived by the driver before the driver starts driving. The same purpose can be achieved by lighting or blinking or changing the color of the background portion of the entire display device instead of lighting the warning lamp 6F3.

By the way, FIG. 8 shows a sectional structure of the handles 6A and 6B. Further, although an example in which the fatigue accumulation determination system of the present invention is applied to a motorcycle has been shown above, the present invention may be applied to an automobile or other work processes involving fatigue. You can freely.

[Description of FIG. 7] This is an embodiment in which the work optimization system at the time of work is applied to a four-wheeled vehicle, which is one of the transportation equipments. Is a cross-sectional schematic perspective view as disclosed in [Nomenclature of Parts in FIG. 7] 7 is a four-wheeled vehicle main body, 7A is a seat, 7O is a driver as a worker, 7B is a receiver, and 7C is a control. Device, 7D is display device, 7E is steering wheel, 7F is seat pressure detector and seat pressure change device, 7G is blood pressure sensor, 7H
And 7I is a blink sensor, 7J is a speaker, 7K is a humidifier,
7L is a rear panel and 7M is a front panel.

[Relevant Description of Each Part in FIG. 7] First, the structure of an existing vehicle fixture with added functions will be described. Basically, the seat pressure detector 7F and the seat pressure changing device 7F provided inside the driver's seat have a built-in hydraulic system so that the hardness of a part or the whole of the seat can be changed. The sensor detects whether or not the pressure has reached. Further, this sensor detects the seat pressure of the driver himself applied to the buttocks of the driver, and this is also used as a seat pressure detector. In contrast to the existing steering wheel, the steering wheel 7E has a built-in sensor for detecting the pressure of the palm as described later with reference to FIG. This sensor detects changes in blood pressure from the driver's palm. Further, it is possible to arbitrarily detect the humidity of the palm by detecting the electric resistance value between both hands, if necessary. The speaker 7J is basically a speaker connected to the car stereo, but an alarm device or
It is used as a voice generator for playing BGM as part of the control of this system.

Now, the device added to the existing vehicle equipment will be described. Blink sensor 7H and 7I are both C
A sensor having a structure for detecting the reflection of the driver's eyeball by pattern recognition from the CD imaging unit and the imaging data,
7I is installed near the eyeball in the ceiling installation,
7H is a type sandwiched between the rear-view mirrors,
Since there is a certain distance from the eye, an auxiliary infrared lamp is attached. Further, both of them have a transmission function for data transmission. The blink sensor for detecting the degree of fatigue can be replaced with a means for measuring the voltage near the head, if necessary.

The blood pressure sensor 7G is provided on the arm of the driver 7O, and intermittently measures the blood pressure during driving and wirelessly transmits the measurement data by the transmitting function. In addition, the front panel 7M is a receiver 7B that receives the wireless data transmitted from each of the above sensors, a controller 7C that receives the received data from this receiver 7B, and further based on the results obtained by this controller 7C. A display device 7D for displaying various data such as fatigue level and fatigue warning lamp is provided. In addition to the speaker 7J described above, a rear panel 7L is provided with a humidifier 7K that can be controlled by wireless reception. Each of the above components is a control device
All of them are connected by electrical means or remote control means such as radio wave infrared rays with 7C as the core.

[Description Regarding FIG. 9] FIG. 9 is a block diagram showing an example of the operation method of the operator comfort system of the present invention.

[Biometric information selection stage] 9A is a biometric information selection stage for selecting biometric information from the biometric information sensor group. The data obtained from the selected sensors are electrocardiogram data, myoelectric data, blinks. Data, blood pressure data, sweat rate, brain waves, skin temperature, skin potential, blood flow rate, respiration rate, and the like. One or more data are selected from the plurality of data, and the selected data are input to the worker state grasping stage 9B.

[Worker State Grasping Stage] In the worker state grasping stage 9B, the worker state is analyzed mainly from two directions of grasping a physiological state and grasping a psychological state. In other words, in this operator state grasping stage, it is possible to grasp the individual states of a plurality of selected physiological information in order to make a composite judgment from a plurality of biological information. Next, the data obtained at the worker status grasping stage is sent to the next optimum psychological amount selection stage 9C.

[Optimum psychological amount selection stage] The optimal psychological amount selection stage 9C is a process of selecting the physiological amount so that the operator can be in a more comfortable state based on the analyzed physiological information. In other words, in this optimum psychology selection stage, the physiological value that automatically brings the operator into the optimum state is automatically selected.

[Stimulation stage] To obtain the value of the optimum physiological amount which is the result of the optimum psychological selection stage, 2
There are two methods, one is a passive method such as resting workers or changing the content of work. On the other hand, it is possible to adopt an active method in which the amount of work and the content of work are left unchanged and physiological stimuli for the worker are added so as to match the optimum value determined in the optimum psychological selection stage 9C. In the present invention, this latter active method is selected, that is, the stimulation application stage 9D applies the physiological stimulation.

[Description Regarding FIG. 10] FIG. 10 is a block diagram showing an example of operation in accordance with a flowchart showing an operation method of the proper system of FIG. In addition, the purpose of this operation example is to learn the comfort of thermal improvement during work from the biological information, and to improve by applying feedback.

[Selection of biometric information] Biometric information selection stage
9A is a step of selecting biometric information from the biometric information sensor group 2a as needed. Here, the sweat rate 10A obtained from the sweat sensor provided directly to the worker, the skin temperature 10B obtained from the skin temperature sensor provided directly to the worker, and the myoelectric data obtained from the muscle voltage sensor provided directly to the worker Each data of 10C is selected. These data are then input to the worker state grasping stage 9B and the optimum psychological amount selecting stage 9C to judge the comfort.

[Worker status grasping stage] The above sweat rate
When 10A, skin temperature 10B and myoelectric data 10C are input to this stage, each data detects the magnitude of the normal value or the difference amount from the normal value. Also,
As the above normal value, a preset common sense value is adopted at the beginning of the application of this system, and if the system is already continuously used, the above-mentioned preset value is not used. The result corrected with the actual value obtained in step 1 is used as the normal value. Further, the magnitude of the normal value obtained in the above process, the difference amount with the normal value, or the compared value is calculated for each data individually and sent to the next optimum psychological amount selection stage 9C.

[Optimum psychological amount selection stage] The above individually analyzed results are input to this optimal psychological amount selection stage, and a more accurate psychological amount of the operator, which cannot be obtained independently from these plural data, is determined. ing. A specific example will be described below. First, if it is judged that the amount of sweat is large compared to the preset standard value that can protect comfort, normally, simply take in outside air, adjust the temperature setting of the air conditioner downward, or send air from the air conditioner. The amount of sweating is controlled by measures such as enhancement. However, when it is determined that the amount of work on the muscle is large based on the simultaneously input myoelectric data, the optimal set value of the amount of sweating is increased according to the amount of work. In other words, it is considered to be comfortable in a situation where the current value of myoelectric data is relatively high compared to the myoelectric data obtained in a stationary state and the muscles of the worker are determined to be used more actively. The skin temperature values taken are preferably corrected upwards. By such control, it is possible to determine the comfortable sweating amount setting according to the work amount.

In this embodiment, the biological information of the skin temperature is further input as the information for grasping the biological body. It is needless to say that the skin temperature reflects the adjustment of temperature and humidity in the air conditioner. Furthermore, the body temperature of the worker should be properly adjusted, such as the clothes worn by the worker or the state of keeping the body temperature of the seat. This is important information that allows you to know if it is controlled. For example, if it is determined from the myoelectric data that the worker's muscle work is low, and the temperature or humidity of the air conditioner is set appropriately, it is determined that the amount of sweat is large as a result of the skin temperature measurement. It is judged that the temperature is kept high in the environment such as the worker's own clothes or the seat at a very short distance. As a result of the above, the temperature setting of the air conditioner is determined to be lower than the preset comfortable temperature. As described above, in the optimum psychological selection stage, the physiological amount value that comprehensively brings the worker into the optimum state is selected. As described above, the comfort is judged in both the worker state grasping stage 9B and the optimum psychological amount selecting stage 9C. Further, as a result of these, the object to which the stimulus is applied and the control amount thereof are determined in the next stimulus applying stage.

[Stimulation stage] The worker is positively stimulated by giving a stimulus to the worker from the periphery of the work environment so as to make the worker more comfortable without changing the work amount or the work content. It is the role of this stimulating stage to guide you to become comfortable. Now, if it is judged from the results obtained at the above stage that the worker is in a significantly cold state and it is necessary to quickly warm up the worker's body, raise the temperature setting of the air conditioner and humidify it. Measures are taken to keep the machine fully operational and to increase seat temperature settings. Further, when the temperature is slightly low, a method of raising only the humidity without changing the temperature setting can be adopted. In addition to this, the following several forms of stimulus application can be mentioned. When the worker is extremely hot, it is effective to lower the temperature setting of the air conditioner and maximize the air volume. On the other hand, instead of controlling the temperature setting of the air conditioner to rise, it stimulates the pot that is expected to heat the body temperature. Specifically, the pot stimulator 3U shown in FIG. 3 is activated. Similarly, instead of down-controlling the air conditioner temperature setting, it is also possible to use a method of stimulating the acupuncture point that is said to remove the burning of the body.

[Description of FIG. 11] FIG. 11 is a block diagram showing a process of determining sitting comfort from changes in blood flow in the legs and changing seat pressure distribution to improve hip pain and riding comfort. The contents will be described below with reference to the drawings. 11A is a block showing a process corresponding to the biological information selection stage. In addition, the process of selecting a signal indicating the blood flow rate from the blood flow rate sensor 5A provided on the inner wall at a position corresponding to the vicinity of the calf of the boot 3Q specified in the detailed description of the boot in FIG. 5 is shown.

Next, the signal from the selected blood flow sensor 5A is input to the operator state grasping stage, and changes in the electrical signal obtained from this blood flow sensor 5A are monitored. This process becomes block 11B. A block 11C shows a switching process in which the trend analysis result of the blood flow sensor 5A performed in the block 11B is input and the stimulating stage 11D is made to give an actual instruction to operate.

The stimulation stage is activated according to the instructions in block 11D. A specific example of the operation is the seat pressure changing device 7F described in detail in the embodiment of the four-wheeled vehicle of FIG. That is, the seat pressure changing device 7F is a device including a hydraulic system and a hydraulic control unit that can change the hardness of a part or the whole of the seat, and changes the distribution of the hydraulic pressure based on the determination of the block 11C. With this change, even in situations where you can not leave your seat,
By changing the seat pressure, a feeling of sitting pressure that is longer and more comfortable can be obtained as compared with a situation where there is no change, and as a result, pain in the hips is prevented. This system can be widely used in high tension airplane pilot seats, car seats, wheelchair seats, motorcycle seats, chairs used in general office work, and the like.

[0051]

According to the work adequacy system and the apparatus thereof of the present invention thus constructed, the electrocardiogram, blood pressure, respiration rate and other biological information sensors are measured for the purpose of measuring the physical condition of the worker who is the subject. Prepare a detection means obtained by selecting one or more from the group, the value detected by this detection means, for example, if the heartbeat is detected, calculate the standard deviation of this heartbeat fluctuation, If you have calculated your blood pressure,
A biological information analysis unit for calculating the comfort level of the operator corresponding to each sensor is prepared by calculating the gradient of increase or decrease in blood pressure. On the other hand, the analysis result obtained from the sensor is compared with a reference value prepared in advance that can protect comfort. According to the result of this comparison, in the case where comfort is lost or there is a fear that the comfort is lost, it is provided around the worker so that the worker can regain the comfort without changing the workload. It is a system for optimizing work in which a stimulus is given to a worker through various devices, and a comfortable work can be always performed by this stimulus. I try to get the retention of sex automatically. As described above, in the present invention, the biological information from the biological information sensor group is selected, and the temporal transition of this information is analyzed,
Alternatively, by analyzing the ratio or difference between this information and a preset reference value, these analysis results can be analyzed individually or in combination to accurately measure the comfort level of the operator, and further the analysis result of these comfort levels can be handled. Then, the physiological value which makes the worker more comfortable is automatically calculated. The stimulation means prepared in advance is operated so as to approach the value of the calculated optimum physiological amount, whereby the deterioration of the comfort level of the operator can be automatically prevented or improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing an outline of a work adequacy system of the present invention.

FIG. 2 is a block diagram showing an embodiment for implementing the work adequacy system of the present invention.

FIG. 3 is a side view showing an embodiment in which a fatigue accumulation determination system during work is applied to a two-wheeled vehicle which is one of transportation equipment.

4 is a detailed view of the helmet shown in FIG. 3, (A) is a partial sectional side view, and (B) is a central vertical line sectional view of (A).

5 is a cross-sectional view showing details of the boot shown in FIG.

FIG. 6 is a partial perspective view showing a specific example of data display in the biological condition reporting / alarm device group shown in FIG. 2, which is mounted on another motorcycle.

FIG. 7 is a partial perspective view showing an embodiment in which a biological condition detection and warning device group is mounted on a four-wheeled vehicle.

FIG. 8 is a partial sectional view showing a sectional structure of a steering wheel of a four-wheeled vehicle and a handle of a motorcycle.

FIG. 9 is a block diagram showing an example of an operating method of a worker comfort system of the present invention.

FIG. 10 is a block diagram showing a method of using the present invention when the system of the present invention is focused on the temperature and humidity of a work environment.

FIG. 11 is a block diagram showing an example in which the system of the present invention is applied to control the seat pressure distribution of a seat.

[Explanation of symbols]

 In FIG. 1, 1a ... Detecting means 1b ... analyzing means 1e ... detecting means 1d ... analyzing means 1e ... comparing means 1h ... the storage means 1f ... first indicating means 1g ... second indicating means 2a ... biological information sensor group 2b ... control device 2c ... Program memory 2d ... Data memory 2e ... Biological condition reporting / alarm device group 2f ... Biostimulator 2h ... Operation control device 2i ... Work machine (stopping operation) 9A ... Biometric information selection stage 9B ... Operator state grasping stage 9C ... Optimal psychological amount selection stage 9D ... Stimulation stage

Claims (2)

[Claims] 1. A detection means selectively used from a biological information sensor group for measuring a physical condition of an operator, and a value detected by the means is associated with each sensor to calculate the comfort level of the operator. Biometric information analysis means, means for recording the analysis result obtained from the analysis means, analysis result 1 obtained based on the information detected by the detection means before the predetermined period, and detected after the predetermined period. The analysis result 2 obtained based on the information is compared, and when the ratio of the latter to the former is more than a certain value, it is determined that the load on the worker's work is within the allowable range and the comfortable range, and the latter is compared to the former. If the ratio is less than a certain value, it is judged that the load on the worker's work exceeds the allowable range and is in an uncomfortable state, or if the difference between the latter and the former is more than a certain value, the worker's work The load is comfortable and within tolerance If the difference between the latter and the former is less than a certain value, it is determined that the load on the worker's work exceeds the allowable range and is in an uncomfortable state, and the stimulus selected in advance based on these determination results. An operator comfort system characterized by automatically controlling the comfort of the operator's environment by operating the application system. 2. A detection means selectively used from a biological information sensor group for measuring a physical condition of the worker, and a comfort level of the worker is calculated by associating a value detected by the means with each sensor. The biological information analyzing means for performing the analysis, and comparing the analysis result obtained from the analyzing means with a reference value required to obtain preset comfort, and when the ratio of the latter to the former is a certain value or more, the worker's work If the load on the operator is comfortable within the allowable range and the ratio of the latter to the former is less than a certain value, the load on the worker's work exceeds the allowable range and is judged to be uncomfortable, or the latter If the difference between the former and the former is more than a certain value, it is judged that the load on the worker's work is within the allowable range and is comfortable, and if the difference between the latter and the former is less than the value, the load on the worker's work is If it ’s unacceptably large and unacceptable Judgment result for judging the comfort of the worker and pre-selected stimulus applying means that operates based on the judgment result, and the judgment result of the uncomfortable state among the judgment results obtained from the judgment means Based on
A comforter for a worker, characterized in that the stimulus applying means is automatically operated to restore comfort without changing the work load and automatically maintain the comfort thereafter.