JP2001352507A - Work data collection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a work data collection method by which work state data can be collected from a bright room and a dark room. SOLUTION: A user uses an infrared video camera 14 to pick up a work of a worker 11 in a dark room. A viewer 12 operates a local switch 21 by each break of the work to enter a break signal, a corresponding work name is sought from a work name list displayed on a liquid crystal display device 15 and stores it in a hard disk of a portable personal computer 20. When there is found no corresponding work name in the work name list, the user uses a microphone 16 and enters it by voice, the voice is converted into character data which are recorded. The work data such as image pickup data, the break signal and the work name stored in the portable personal computer 20 are transferred to a data processing personal computer 25, where the data are confirmed, corrected, and converted into a graph or a list or the like, which are checked and analyzed and printed out as required. In a bright room, the user uses a video camera whose sensitivity is set to a visible light wavelength band.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work data collection method, and more particularly, to a work data collection method capable of collecting work status data in both a bright room and a dark room, and a work data collection capable of collecting work load data. It is about the method.

[0002]

2. Description of the Related Art In a factory or the like, the present condition of work is analyzed in order to improve work efficiency. In order to analyze this situation, it is necessary to collect work data. Various methods have been devised for this work data collection method. The most primitive method is to take notes, but this is not efficient because it takes time to input data to a data processing personal computer while viewing the notes later.

[0003] For this reason, recently, for example, a bar code sheet in which work names are represented by bar codes is prepared in advance,
Observer (person who observes the work situation and records work data)
Scans and reads the barcode of the corresponding work name with a handy type barcode reader at the same time as the worker starts a predetermined work at the site, and reads the barcode of the work completion at the same time as the work of the worker. The barcode reader has a built-in clock and memory, and stores the time when the barcode of the work name is scanned as the work start time and the time when the end barcode is scanned as the work end time in the memory. By repeating this scanning operation for each work, data of the work name and time are accumulated in the memory of the barcode reader.

[0004] After finishing the observation at the work site, the observer
The barcode reader is connected to the data processing personal computer to transfer the data stored in the memory. Then, after confirming, correcting, adding, etc., the data by the data processing personal computer, the analysis result for each work name is displayed in a table, a graph, or the like, and printed out.

On the other hand, a device for attaching a sensor for obtaining ecological information (hereinafter referred to as an ecological sensor) to a worker and storing data of the ecological information continuously or at regular intervals in a memory is used for sports training and the like. Used. The observer gives the training curriculum to be observed to the worker to execute the training curriculum, and obtains ecological information data. The observer connects the device to the processing personal computer after the predetermined training, and transfers the data stored in the memory of the device to the processing personal computer. The data processing personal computer performs analysis processing such as transition of data in time series and statistics of the data, and analyzes the load at the time of training.

[0006]

The above-mentioned work data collecting method as described above has no problem when the work site is in a bright room, but is inconvenient when, for example, in a dark room where a photographic film is used. There are many. That is, observation in a dark room requires night-vision glasses. However, since the night-vision glasses are not in focus, it is impossible to see a barcode sheet held in a hand or watch a wristwatch. In addition, since a device that emits light cannot be used in a dark room, a notebook computer with a backlight or various lighting devices cannot be used.

Further, since the physical load on the worker affects the work efficiency, it is conceivable to apply the method of collecting the work load data in sports training as described above to actual work in a factory or the like. However, until now it has only been done experimentally.

SUMMARY OF THE INVENTION An object of the present invention is to provide a work data collecting method capable of collecting work situation data in both a bright room and a dark room. Another object of the present invention is to provide a work data collection method capable of collecting work load data.

[0009]

In order to achieve the above object, a work data collection method according to the present invention provides a method in which an observer takes an image of a worker sequentially performing a plurality of types of work by using a video camera. When recording a signal, an observer inputs a delimiter signal to a video camera when the type of work is changed, and records the delimiter signal together with the video signal on a common recording medium.

In addition, when an observer takes a picture of a worker performing a plurality of types of work sequentially with a video camera and records the video signal through a personal computer, the observer observes when the kind of work is changed. A user inputs a delimiter signal to a personal computer and records the delimiter signal together with the video signal on a common recording medium. The work load of the worker is measured during at least one work period partitioned by the delimiter signal, and the measured work load information is input to the personal computer and is associated with the video signal or the delimiter signal on the recording medium. It is to be recorded.

In addition, the work environment around the worker is measured during at least one work period defined by the delimiter signal,
The measured work environment information is input to the personal computer and recorded on the recording medium in association with the video signal or the delimiter signal. Further, the delimiter signal is an image signal or an audio signal. The delimiter signal is used as a cue signal when reproducing at least one of a video signal, work load information, and work environment information from a recording medium.

Also, when the delimiter signal is input, data of a work name indicating a work type is input to a video camera or a personal computer and recorded. Further, the video camera is an infrared video camera capable of capturing work in a dark room. The observer also serves as an operator. Further, the observer performs work observation using a self-propelled moving body.

The observer observes the operator performing a plurality of types of work sequentially, and is connected to the personal computer when the type of work is changed or at the start and end of each type of work. By selecting the corresponding work name from the display means and performing an input operation to the personal computer, the data of the work name is recorded together with the data of the input time on the recording medium of the personal computer.

Further, while observing the state in which the operator performs a plurality of types of work in sequence, when the type of work is changed or at the start and end of each type of work, it is connected to the personal computer. By inputting the corresponding work name by voice through the microphone, the input voice data is converted into character data in the personal computer, and the time data at the time of voice input together with the character data is recorded on the recording medium of the personal computer. Is to be recorded.

When the type of work is changed, or when each type of work is started and ended, the corresponding work is performed through the microphone while the observer observes the state in which the worker sequentially performs a plurality of types of work. By voice inputting the name to the recording / reproducing device, the voice data is recorded on the recording medium of the recording / reproducing device, and the time data at the time of the voice input is recorded on the recording medium by a clock function incorporated in the recording / reproducing device, When reproducing the audio data, the time corresponding to the audio data is displayed on the display unit of the recording / reproducing apparatus.

Further, while the observer observes that the worker sequentially performs a plurality of types of work, when the type of work is changed, the work name is input through a microphone to a portable personal computer having a voice interactive function. In response to this, the personal computer verifies the voice to the observer through the earphone worn by the observer using the voice dialogue function, and the observer responds to this through the microphone to indicate the work name data and the break of the work. The time data is recorded on a recording medium of a personal computer.

Further, while observing the state in which the worker performs a plurality of types of work sequentially, the time required for each type of work is measured, and the operator is notified to the operator within the work time for each type. This physical load is measured, and the load data and work time data are recorded on a predetermined recording medium for each type of work.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1 showing a first embodiment, an observer 1 observing an operation of an operator 11 in a dark room 10 is shown.
2 is an ultra-compact infrared video camera 1 with sensitivity set in the infrared region (wavelength range of about 1000 to 30000 nm)
4. The liquid crystal display 15 and the microphone 16 are mounted on the head. The mounting position of the liquid crystal display 15 is set to a position where the observer can look at the screen with a slight upward glance. Then, goggle-shaped night-vision glasses 17 are worn from above the liquid crystal display 15 so that light emitted from the backlight of the liquid crystal display 15 does not leak. These night-vision glasses 1
Although it is well known, a weak optical image can be viewed as a bright optical image by using, for example, an image intensifier.
Can observe the work of the worker 11 in the dark room 10.

A work environment sensor 18 for measuring the illuminance, noise, temperature, humidity, etc. of the workplace is attached to the protruding tip of the night-vision glasses 17. In addition, observer 12
An earphone 19 is attached to the ear. The infrared video camera 14, the liquid crystal display 15, the microphone 16, the working environment sensor 18 and the earphone 19 are connected to a portable personal computer 20 with a recording function that the observer 12 wears on his / her shoulder. A hand switch 21 is further connected to the portable personal computer 20.

On the liquid crystal display 15, a picture taken by the infrared video camera 14 is displayed, a name of each work to be observed is displayed in a list, and a clock is displayed. The microphone 16 is used for inputting the work name by voice when the corresponding work name is not in the list. The earphone 19 is used for the portable personal computer 2 for the operation of the observer.
A response from 0, for example, a warning is notified to the observer 12 by sound.

The hand switch 21 is connected to the liquid crystal display 1.
5 is provided with a pointing device for moving a cursor to the work name displayed in the list 5, a confirmation key for confirming the work name selected by the cursor, and a signal input button for inputting a work separation signal. When the signal input button is operated, a work break signal is recorded on the hard disk of the portable personal computer 20 together with the recorded video. The delimiter signal is a signal for performing cueing of each operation, and a sequential signal that can be recognized by a video signal reproducing device (such as a video deck) in order is used. For example, marks and sounds recorded in the screen are used. When a sound is used as the delimiter signal, the sound may be input from the microphone 16.

The worker 11 is equipped with an ecological sensor 22. The ecological sensor 22 is connected to the portable personal computer 20 by a wireless device or a cable (not shown). The ecological sensor 22 is composed of, for example, an infrared sensor, and measures the body temperature of the worker 11 which rises as the work of the worker 11 becomes busy, and measures the physical load (work load) applied to the worker. Depending on the magnitude of the work load, the degree of worker fatigue and work efficiency differ. The measurement value of the ecological sensor 22 is input to the portable personal computer 20 via a wireless device or a cable.

At the time of observation in a bright room, the night-vision glasses 17 are removed, and the infrared video camera 14 is a small-sized video camera for general photographing whose sensitivity is set in the wavelength range of visible light (wavelength range of about 400 to 700 nm). Changed to camera. In this case, the work environment sensor 18 is removed from the night-vision glasses 17,
It is attached to the head or the like of the observer 12.

The operation of this embodiment will be described with reference to the flowchart shown in FIG. Before starting observation, clarify the purpose of the observation and determine the details of the data to be observed. In addition, as a specific purpose of the observation, for example, a review of the work process, a change in the number of workers to be input into the same work, and the like can be considered. In addition, the names of the work to be observed are listed in advance, their names and classifications are defined, and this work name list is input to the portable personal computer 20.

The observer 12 first wears the portable personal computer 20 on his / her shoulder, wears the liquid crystal display 15 on his / her head, and then wears the night-vision glasses 17. Thus, the liquid crystal display 15 is light-tightly covered with the night-vision glasses 17. next,
The infrared video camera 14 is mounted on the head, the earphone 19 is mounted on the ear, the power of the portable personal computer 20 is turned on, the hand switch 21 is held by hand, and the user enters the dark room 10.

In the dark room, the worker 11 continuously performs a series of operations including a plurality of types of operations. The observer who has entered the dark room 10 starts imaging with the infrared video camera 14 before the work is started, while observing the work situation of the worker 11 with the night-vision glasses 17. Then, at the same time as the start of the work, the signal input button of the hand switch 21 is operated to input the first delimiter signal.

Thereafter, a list of work names is displayed on the liquid crystal display 15 to search for the corresponding work name. When the work name is found, the user operates the pointing device of the hand switch 21 to move the cursor to the work name and press the enter key. Thus, the work name data is recorded on the hard disk of the portable personal computer 20 together with the video. In the same manner as above, until the end of a series of operations, the imaging by the infrared video camera 14 and the input of the separation signal and the operation name data are performed at each operation separation. Note that a special signal representing the meaning of each of the first and last delimiters may be used as the delimiter signal.

If there is no corresponding work name in the work name list displayed on the liquid crystal display 15, the work name is inputted by voice using the microphone 16 at the break of the work. The work name input by voice is converted from voice data into character data by the portable personal computer 20 and recorded. Also,
The work environment sensor 18 measures the illuminance, noise, temperature, and humidity of the workplace being imaged in conjunction with the imaging by the infrared video camera 14 and inputs the measured light to the portable personal computer 20. The ecological sensor 22 measures the body temperature of the worker 11, and inputs the measured value to the portable personal computer 20 via a wireless device or a cable.

In the light room, a small video camera for general photographing is used instead of the infrared video camera 14,
The observer 12 removes the night-vision glasses 17 and performs the same input operation as in the dark room 10. In this case, the work environment sensor 18 is detached from the night-vision glasses 17 and attached to the head or the like of the observer 12.

After the input of the work data such as the imaging signal, the separation signal, the work name, the work environment (illuminance, noise, etc.), the work load, etc. of all the work is completed, the portable personal computer 20 is transferred to the data processing personal computer 25. The work data stored in the portable personal computer 20 is transferred to the data processing personal computer 25 through a cable connection. In addition to the above cable connection, a removable storage medium such as a DVD (digital versatile disc) RAM can be used for this data transfer.

The data processing personal computer 25 displays the work data transferred from the portable personal computer 20 on the display 2.
6 for confirmation work, and correct or add work data deemed necessary. At this time, by searching for the delimiter signal, the delimiter part of the work can be quickly called.

The photographing time of the infrared video camera 14 is recorded in the portable personal computer 20 together with the video data. The work time is input by scanning the corresponding barcode on the barcode sheet 34 and inputting it to the data processing personal computer 25 or directly from the keyboard. Thereafter, the work data is converted into a graph, a table, or the like, and the relation between the work content and the work load is examined and analyzed on the screen of the display 26. The image is printed out by the printer 27 as needed.

The work name may be input to the data processing personal computer 25 after all the photographing is completed. In this case, the work name data is input to the data processing personal computer 25 by scanning the bar code while confirming the work with the shot image using a bar code sheet in which the work name and the corresponding bar code are described in advance. Is good. Also,
The data may be input directly from the keyboard of the data processing personal computer 25.

Although the video taken by the video camera is recorded on the portable personal computer, it may be recorded on a general digital video recorder. In this case, the work separation signal is recorded on a video tape of a digital video recorder.

In the first embodiment, it is possible to give a work name after looking at the captured video, so that there are a large number of work options, if the work contents cannot be sufficiently grasped in advance, It is possible to cope with a case where it is difficult to select a work name on the spot while watching the work (for example, when the work time is short).

Next, in FIG. 3 showing the second embodiment,
The worker and the observer 30 collect observation data by mounting each member such as a video camera worn by the observer 12 by the worker himself. In this case, the ecological sensor 22
In addition to the sensor that measures the body temperature of the worker / observer 30 itself, a sensor that measures sweating may be used.

Next, in FIG. 4 showing the third embodiment,
The observer 12 has an electric small car 32 which is a self-propelled moving body.
Move on the. In this case, for example, the portable personal computer is replaced with a high-performance vehicle-mounted personal computer 35,
A small video camera mounted on the head can be changed to a higher performance video camera and mounted on a small car. In addition, as the self-propelled moving body, besides a car on which the observer 12 rides, a self-propelled luggage carrier that carries only equipment such as a personal computer and runs in parallel with the observer 12 can be used.

Next, a fourth embodiment that does not use a video camera will be described. In FIG. 5, the observer 12 who has entered the dark room 10 looks for the corresponding work name from the list of work names displayed on the liquid crystal display 15 while observing the work situation of the worker 11 with the night-vision glasses 17. When the work name is found, the user operates the hand switch 21 to move the cursor to the work name. Thereafter, the worker 11 presses the enter key at the start of the work. Thereby, the work start time data together with the work name data is recorded in a storage device such as a memory or a hard disk of the portable personal computer 20.

When the worker 11 has completed the same work, the observer 12 presses the enter key again while keeping the cursor at the same work name. Thus, the work end time data is recorded in the storage device of the portable personal computer 20 together with the work name data. When a plurality of types of work are performed consecutively, the work order of each work is checked in advance, and a work name to be started is input at the break of each work.

If there is no corresponding work name in the work name list displayed on the liquid crystal display 15, the microphone 1
Use 8 to speak in the work name. When observing work in a bright room, the observer 12 removes the night-vision glasses 17 and performs the same input operation as in the dark room 10.

Next, a fifth embodiment using a recording / reproducing apparatus will be described. As shown in FIG. 6, when the observer 12 speaks the work name toward the microphone 16 at the break of the work, the work name is recorded in the memory of the recording / reproducing device 40, and at the same time, the time data of the work break is stored in the memory. Will be recorded. These times are recorded in the recording / reproducing device 4 when the work name is reproduced.
0 is displayed on the liquid crystal panel 41.

After observing all operations in this way,
Bar code sheet 43 for inputting work names created in advance
Then, the work name data and the work separation time data are input to the data processing personal computer 25 by using the barcode sheet 44 for inputting the time. The input operator plays the corresponding bar code sheet 43 using the bar code reader 45 connected to the data processing personal computer 25 while playing back the recording / reproducing device 40 and listening to the work name emitted from the speaker of the recording / reproducing device 40. Scan the barcode you want. Thus, the observed work name data is input to the data processing personal computer 25.

The input operator scans the corresponding bar code on the bar code sheet 44 with the bar code reader 45 while watching the time displayed on the liquid crystal panel 41. For example, the barcode sheet 44 is as shown in FIG. 7. If the work start time is 10:15:28 AM, the input operator has scanned the barcode 44 a of “work start time”. After that, the bar code 44d of "1"
Is scanned once, the barcode 44c of "0" is scanned once, and then the barcode 44m of "hour" is scanned. Subsequently, the barcode 44d of "1" is scanned once and the barcode 44h of "5" is scanned once, and then the barcode 44n of "minute" is scanned. Similarly, bar code 4 of “2”
4e is scanned once, the "8" barcode 44k is scanned once, and then the "second" barcode 44p is scanned.

The bar code reader 45 may be of a cordless type. In this case, the bar code reader 45 is connected to the data processing personal computer 25 after scanning is completed.
To transfer data by cable or to transfer data by infrared communication. When the barcode reader 45 is put on, a concentrator for transferring the work data of the barcode reader 45 to the data processing personal computer 25 automatically or by operating a button is connected to the data processing personal computer 25 in advance. May be.

Further, the work name is displayed on the screen of the display 22 of the data processing personal computer 25 without using a barcode sheet, and is selected by a touch panel or by a keyboard connected to the data processing personal computer 25. Operation may be performed. In addition, work data can be collected in a light room in the same manner.

Next, a sixth embodiment in which different work data collection methods are used in a dark room and a bright room will be described. In a dark room, the operation is the same as that of the fifth embodiment, but in a bright room, the corresponding barcode on the barcode sheet 43 is scanned at the break of the operation while observing the operation. The bar code reader used for this has a built-in clock and records the scanned time data together with the work name data. As a result, the work data collected in the light room is transferred from the bar code reader to the data processing personal computer 25 through one of the connection code, infrared communication, and the concentrator. The trouble of inputting data to the data processing personal computer 25 is reduced.

Next, in FIG. 8 showing the seventh embodiment,
The method of collecting work data is the same as that of the fifth embodiment, except that the recording / reproducing device 5 for which work data has been collected is used.
Reference numeral 0 denotes a cable connected to the data processing personal computer 25, and the audio data of the work name and the time data of the work separation time are transferred to the data processing personal computer 25. The transferred voice data is converted into character data by a function (for example, provided by an application package) provided in the data processing personal computer 25. Work data is also collected in the light room in the same manner. The data transfer from the recording / reproducing device 50 to the data processing personal computer 25 may be performed by infrared communication or the like in addition to the cable connection.

Next, a portable personal computer incorporating a voice interaction system can be used. In the eighth embodiment, when the observer utters the work name A into the microphone,
The portable personal computer searches for a corresponding work name A from a previously input work name list. Then, when the work name A uttered by the observer is registered in the work name list, the portable personal computer, for example, reads "Work A."
Then, repeat the work name A through the earphone. On the other hand, if the observer answers "Yes" at the start of the work, the character data of the work name A is recorded in the storage device of the portable personal computer, and at the same time, the time is recorded as the work separation time. You.

If the work name A is not registered in the work name list, the portable personal computer responds to the observer through earphones, for example, "Work A is not registered. Would you like to register?" Therefore, if the observer answers "Yes" to this, the work name A is added to the work name list. Thereafter, when the observer utters the work name A again, the portable personal computer repeats "A work!", And the observer responds with "Yes."
Then, the character data of the work name A is recorded in the storage device of the portable personal computer, and at the same time, the time is recorded as the work separation time. As described above, in this embodiment, the recording is performed while checking the work name, so that occurrence of an input error is prevented. Also, work data can be collected in the same manner in a bright room. The drawing of this embodiment is substantially the same as that of FIG.

Next, a description will be given of a ninth embodiment using a recording / reproducing apparatus and an utterance clock for notifying the time by voice. The observer speaks the work name into the microphone, and records the work name on the recording / playback device. Subsequently, the utterance switch of the utterance clock is turned on at the break time of the work, and the time at that time is uttered. The recording of the work name and the break time can be reversed.

In the first to ninth embodiments described above, a memory which can be quickly accessed is used as a storage medium of the recording / reproducing apparatus.
inidisc). The present invention can also be applied to observation of work handling various chemicals by adding a waterproof function to devices used in a dark room such as the portable personal computer and the recording / reproducing device. In addition, the present invention is not limited to the above-described operation, and can be applied to the recording and analysis of the current state and changes of facilities in a dark room. It can also be applied to the analysis of employee daily reports and behavior records, and the proceedings of meetings.

Next, in the tenth embodiment shown in FIG. 9, one or more, for example, three ecological sensors 63, 64, 65 are mounted on the head, back of hand, and waist of the worker 11, and each ecological sensor 63 is mounted. Are output from the portable personal computer 2 of the observer 12 via a wireless communication device 66 such as Bluetooth.
0 is input. Of course, the portable personal computer 20 also has a built-in wireless communication device paired with the wireless communication device 66.

The ecological sensors 63 to 65 are acceleration sensors for quantifying the intensity of the load based on the movement (physical displacement) of the head, back of the hand, and waist of the worker 11, for example. (Elbows, knees, ankles, etc.), but it is desirable, but the description and drawings are complicated.

The ecological sensor may be, for example, a known gyro other than the acceleration sensor, or a relative position sensor using magnetism or radio waves. Also,
For example, a magnetic sensor that detects relative position data of each part of the body, an illuminance sensor that measures illuminance in the direction of the visual field, and the like can be used. Further, depending on the purpose, sensors for myoelectric potential, pulse, heart rate, brain wave, etc. may be used. Also,
In addition to illuminance, sensors such as temperature, humidity, gas concentration, and sound volume may be used. In the case of an infrared sensor for measuring body temperature, the body temperature of a worker attached to and separated from the observer is measured. To measure the temperature of each part of the body of the worker, a thermometer is attached to each part of the body of the worker.

Further, as the ecological sensor, for example, a CCD camera equipped with an ultra-wide-angle lens is attached upward to the top of the head, and data of the center and peripheral visual fields of the image are processed to perform image processing on the direction of movement of the human head. The change in direction may be calculated quantitatively. Accelerometers attached to workers' hands, feet, and torso, and mutual sensor distance detection data show that data such as movement of the entire body, movements of the limbs, and which parts of the body are overworked. Can be obtained.

As substitute characteristics of the thinking and attention of the worker, the number of blinks of the worker, the movement of the eyeball, the change of the expression, the movement of the line of sight and the change of the brightness in the direction of the line of sight are known. . Therefore, the video camera may be pointed at the worker's face, and the data of these substitute characteristics may be quantified.

Further, a specific mark may be put on a hand, a work, a form, or the like of an operator, and whether or not they appear at a specific place in the visual field image may be recorded. This makes it possible to record, as data, the appearance frequency of each operation of the operation in which the operator gazes at the hand by a switch operation or entry.

Further, for example, by providing a volume sensor at the head and the mouth, it is possible to obtain data that distinguishes the utterance of the worker from the sound of surrounding equipment, and to check whether a conversation occurs every time in the work. good. If the information input means of these ecological sensors can obtain data without contacting workers, it is easy to attach and detach, there is little variation in data due to wearing conditions, and the mental burden of workers due to wearing It is advantageous in that it does not impair privacy and privacy. They can also be used in combination with contact sensors (such as myoelectric potential).

The data of the ecological sensors 63 to 65 are as follows:
The attribute data is stored in the hard disk in the portable personal computer 20 as attribute data for each work separated by the separation signal. In addition, it is possible to define in advance a logic for comparing and judging a threshold value and a pattern for representing the degree and characteristics of the load, and store the judgment data simultaneously with the storage. For example, preliminary observations are performed once without any time constraints, and the maximum value of the ecological sensor data for each operation at that time is defined as a threshold. While doing the observation again in the actual work,
When the threshold value for each task is exceeded, data of the determination result indicating that the load due to the time constraint is high for the task can be stored.

The observer 12 observing the work of the worker 11 in the work area 68 of the light room is provided with the work environment sensor 18.
In addition, micro video camera 69, liquid crystal display 1
The goggles 70 holding 5 are mounted on the head. The liquid crystal display 15 allows the observer to look at the screen with a slight upward gaze. When the work area 68 is a dark room,
The goggles 70 are night vision glasses similar to the first embodiment.
In addition, the work environment sensor 18 is, in addition to the observer 12,
It can also be provided at the worker 11 or any place in the work area 68. In this case, the work environment sensor 18 and the portable personal computer 20 are connected using the communication means. In addition, the same reference numerals are given to the same devices as those in the other embodiments described above, and the description will be omitted.

The operation of the present embodiment will be described with reference to the flowchart shown in FIG. Before starting observation, clarify the purpose of the observation and determine the details of the data to be observed. In addition, as a specific purpose of the observation, for example, a review of the work process, a change in the number of workers to be input into the same work, and the like can be considered. In addition, the names of the work to be observed are listed in advance, their names and classifications are defined, and this work name list is input to the portable personal computer 20. further,
Depending on the purpose of the analysis, select the ecological and environmental sensors to be used, the purpose of data acquisition, the number and location of sensors,
A data processing method is selected, and settings are made in the portable personal computer 20 so that data can be acquired.

The observer 12 starts imaging by the video camera 69 before the work is started, while observing the situation of a series of plural kinds of work performed by the worker 11. Then, at the same time as the start of the work, the signal input button of the hand switch 21 is operated to input the first delimiter signal.

Thereafter, a list of work names is displayed on the liquid crystal display 15 to search for the corresponding work name. When the work name is found, the user operates the pointing device of the hand switch 21 to move the cursor to the work name and press the enter key. Thus, the work name data is recorded on the hard disk of the portable personal computer 20 together with the video signal.
Until a series of operations are completed, a separation signal and operation name data are input for each operation, together with an image signal from the video camera 69, until a series of operations is completed.

If there is no corresponding work name in the work name list displayed on the liquid crystal display 15, the work name is inputted by voice using the microphone 16 at the break of the work. The work name input by voice is converted from voice data into character data by the portable personal computer 20 and recorded. Also,
The work environment sensor 18 measures the illuminance, noise, temperature, and humidity of the workplace being imaged in conjunction with the image pickup by the video camera 69 and inputs the measured light to the portable personal computer 20. In addition, the ecological sensors 63 to 65 transmit data obtained by the movement and body temperature of the head, the back of the hand, the waist, and the load determination logic to the wireless communication device 66.
Is input to the portable personal computer 20 via the.

If the work load data is, for example, body temperature data obtained by an infrared sensor, as shown in FIG. 11, the raw data α and β of the transition of each body temperature in the situation where the time quota of the work name A is large and the situation is small. However, as shown in FIG. 12, elementary data of changes in body temperature and the like separated for each of the work names A, B, C, and D are stored. For example, if the relative position data of each part of the body by the magnetic sensor or the data of the displacement of each part of the body by the acceleration sensor, the raw data of the displacement amount within the time divided for each task (position, Each transition of the inclination), the average value and the maximum value of the displacement, and the like are stored. For example, in the case of illuminance data in the direction of the field of view, elementary data of illuminance transition divided for each task, average direct, maximum direct, and the like are stored. In addition, if the sensor measures a person's blink or eye movement using a camera, the transition of the blink timing, the number of times, the value of the time interval, and the like are stored for each work.

After the work observation, the portable personal computer 20 is connected to the data processing personal computer 25 via a cable, and the work data stored in the portable personal computer 20 is transferred to the data processing personal computer 25. Note that, in addition to the cable connection, a removable storage medium such as a DVDRAM can be used for the data transfer. The data processing personal computer 25 converts the data into a graph, a table, or the like, and examines and analyzes the work time and load for each work on the screen of the display 26. The image is printed out by the printer 27 as needed.

In the analysis of work data, the total of each work performed in the process and the analysis of the contents of each work can be performed. In the analysis for each work, in the analysis of only the work name and time, a table in which the average time, the total time, and the total time ratio for each work name were obtained, and the work names were arranged in descending order of the total time as shown in FIG. In general, a Pareto diagram is used, but by adding and displaying FIG. 14 showing the data of the workload here, the characteristics of the process and the improvement priority for each work can be represented. According to FIG. 13 and FIG. 14, for example, the work name A is an input work staring at a CRT display having a relatively high luminance because the influence of the time constraint is large and the high illuminance time in the viewing direction is long. Extremely high workload.
The work name B is considered to have a relatively small overall work load because the influence of the time constraint is small and the high illuminance time in the viewing direction is long but the total work time is short.

For analysis of work sharing and timing, as shown in FIG. 15, it is general to show the contents of work in a time series in a man-machine chart (Gantt chart). By adding and displaying FIG. 16 showing the data of the work load according to the length of the high illuminance time in the line of sight, it is possible to visually indicate the work sequence and the point of interest in improving the role assignment. Note that the entire width of the chart in the vertical direction is the total work time, and is, for example, 8 hours.

The data is analyzed based on FIG. 15 and FIG. For example, the worker W1 performs a rate-determining operation (operation while maintaining a substantially constant speed) in a process with strict time constraints, and the work load due to time is high, and the high illuminance time in the visual field direction is short. It can be inferred that attention is also directed to time. On the other hand, although the effect of the time constraint is small, the worker W2 is determined to have a large load on the visual acuity based on the gaze direction illuminance data, and is presumed to be engaged in the work of staring at a dazzling object such as a display or a sharksten.

Further, these are input to the PERT software representing the restrictions on the operation of the equipment and the restrictions on the order of the work, and FIG.
As shown in (2), by displaying the state of the load together, it is possible to visually display the work time and the bias of the load as a result of the work distribution in the process in the form of the Gantt chart. A hatched area 75 indicates heavy work with a relatively high workload, a dotted pattern 76 indicates a light work with a relatively low workload, and an area 77 without a pattern indicates a standby state.

Each of the workers W1, W2, W3 uses the equipment E for a little more than two-thirds of the total work time T1, and uses one-third of the rear work time T1.
Weaker is working using equipment F. The worker W1
The user is busy working over the entire working time T1. The worker W2 is in a standby state in the first half of the total work time T1, but starts light work in the latter half of the facility E, becomes busy when shifting to the facility F, and enters a standby state in the latter half of the facility F. The worker W3 is in a standby state and is in a light work and easy state while working in the facility E, and is busy just before shifting to the facility F, and is in a standby state in the latter half of the facility F.
Therefore, for example, at least in the first half of the total work time T1, it is easily conceivable that the workers W2 and W3 whose work loads are extremely small share and undertake the work of the worker W1. Note that, for example, T1 = 1 hour.

Also, the work can be divided into several segments using the work load data, and the features of the process can be represented by the number of works belonging to each segment and the total time. For example, large, medium, and small standards are set for the load data of each work, and the data is classified by work. In addition, by analyzing the work by combining the data and dividing it into segments, ranking the work using a comprehensive index weighting the load data, and showing the work to be focused on easily Can be. Table 1 below shows the load ranking, the work time ratio, and the occurrence frequency (frequency distribution) for each work. Tables 2 and 3 show the individual (workers W1, W
The work time ratio and occurrence frequency for each work load in 2) are shown.

[0073]

[Table 1]

[0074]

[Table 2]

[0075]

[Table 3]

In this way, the characteristics of the work for each process or each worker are compared and analyzed, and the distribution of the load among the workers, the examination of the appropriate distribution of the work between the skilled and unskilled workers, and the like, It can set goals for qualitative improvement of work.

For example, in Table 1, since the data is divided for each work in advance, it is possible to quickly extract only the data of the focused work from the data of all the works, and when there are a plurality of data with the same work name, It is also possible to compare and total the data. by this,
For example, in the case of a work in which the load varies every time the work is performed, measures such as re-evaluating the work method and leveling the load can be taken.

In the analysis of each work, the target analysis can be performed by analyzing data in more detail for each work on the work to be focused on obtained by the total analysis of the above works. For example, for the work P in Table 1, the start time, end time, required time, time transition of the movement of each part of the body, movement amount direction and average value / maximum, and temporal change of illuminance in the gaze direction and average value / maximum The data such as the temperature of the body and the body temperature over time and the average value and the maximum straightness are listed. Based on this list, it is possible to analyze how the load on human beings is applied in the work of P, and to know the points of improvement of facilities and construction methods (including joint work).

In other words, optimization of work time and load distribution to each worker in cooperative work, optimization of arrangement of unskilled persons, calculation of unit work wages, problems in frequency of load occurrence and time transition. Applying the point extraction and Industrial Engineering (IE) perspective to the workload, the ECRS (Elimi
nate (removal) Combine (merger) Rearrange (reorganization) S
implify).

Next, referring to FIG. 18 showing the eleventh embodiment, the worker and the observer 30 attach the members such as the video camera 69 worn by the observer 12 to the observer 12 so that the worker and the observer 30 can obtain the observation data. Collection can be performed. In this case, the ecological sensors 63 to 65 are sensors for measuring the worker / observer 30 itself. In this embodiment, it is not necessary to provide an observer, which can contribute to labor saving of work data collection. In FIG. 18, the same members as those in FIG. 9 are denoted by the same reference numerals.

In the above-described embodiment, the work break signal is input by the hand switch. However, the work break signal may be obtained by previously detecting a specific marking in the field of view of the work break, or by installing equipment in the process. If a delimiter signal can be input by automatically determining and defining a delimiter signal, this may be used as the delimiter signal. This makes it possible to replace the observer 12 with a robot or the like.

Although an infrared video camera is used as a video camera used for observation in a dark room, a high-sensitivity video camera such as an image intensifier camera may be used. Also, by using a special filter to change the wavelength range to be imaged using a special filter, or by using a special video camera that switches between the infrared range and the visible light range, the same video camera can be used to image the dark room and the bright room. Can also.

Although the working environment sensor and the ecological sensor are linked to the video camera, they may perform the measuring operation independently. Further, in the above embodiment, the workload is measured by the ecological sensor. However, the observer observes the work status of the worker to determine the workload applied to the worker, and for example, determines the degree of the workload by using a barcode. May be input as large, medium, and small. This input may be performed by the observer or another operator while watching the captured video image, in addition to being performed by the observer at the observation site.

[0084]

As described above, according to the work data collection method of the present invention, an observer takes an image of a worker performing a plurality of types of work sequentially with a video camera and records the video signal. At the time, when the type of work is changed, the observer inputs a delimiter signal to the video camera and records this delimiter signal together with the video signal on a common recording medium,
For example, by using an infrared video camera in a dark room and a video camera for general photography with sensitivity set in the visible light wavelength range in a bright room, data on work conditions can be collected in both a bright room and a dark room and recorded on a recording device. The division of each operation can be easily searched by the divided signal, and the data of the operation name and the division signal can be quickly converted.

Also, when the observer takes a picture of a worker performing a plurality of kinds of work sequentially with a video camera and records the video signal through a personal computer, the observer observes when the kind of work is changed. Since the user inputs the delimiter signal to the personal computer and records the delimiter signal together with the video signal on a common recording medium, in addition to the above effects, there is no need to convert the delimiter signal into data for a personal computer. Processing can be performed quickly and easily.

Also, the work load of the worker is measured during at least one work period defined by the delimiter signal, and the measured work load information is input to a personal computer and recorded in association with the video signal or the delimiter signal. Since it is recorded on a medium, it is possible to clearly understand the relationship between the work content (including procedures) and the load on the worker, and use it as a basic material for improving the division of work, etc. Can be.

Further, the work environment around the worker is measured during at least one work period defined by the separation signal,
The measured work environment information is input to a personal computer and recorded on a recording medium in association with a video signal or a delimiter signal, so that the work contents, work time and the relationship between the work environment can be clearly grasped, and the work environment can be improved. Can help.

Further, if the delimiter signal is an image signal or an audio signal, the input of the delimiter signal becomes easy not only in a bright room but also in a dark room. Also, the delimiter signal is used as a cue signal when reproducing at least one of the video signal from the recording medium, the work load information, and the work environment information. Work load information and work environment information can be easily extracted.

Further, at the time of input of the delimiter signal, the data of the work name representing the type of work is input to the video camera or the personal computer and recorded, so that the association between the work break and the data of the work name is completely performed. Will be Also,
Assuming that the video camera is an infrared video camera capable of capturing the work in a dark room, it can capture the work in a dark room as in a bright room. Further, if the observer also serves as an operator, it can contribute to labor saving of work data collection without providing an observer. Further, if the observer performs work observation using the self-propelled moving body, the burden on the observer can be reduced, and equipment such as a personal computer with higher performance can be used.

When the type of work is changed or when each type of work is started and ended, the corresponding work name is selected from the display means connected to the personal computer and the input operation to the personal computer is performed. Since the data of the work name is recorded together with the data of the input time on the recording medium of the personal computer,
Work time and work name data can be easily recorded without using a video camera.

When the type of work is changed, or when each type of work is started and ended, the corresponding work name is input by voice through a microphone connected to the personal computer, and this input is performed. The voice data is converted into character data in the personal computer, and the time data at the time of voice input is recorded on the recording medium of the personal computer along with the character data, so that the work time and work name data can be easily and reliably recorded even in a dark room. Can be recorded.

When the type of work is changed or when each type of work is started and ended, the corresponding work name is input to the recording / reproducing device by voice through a microphone, so that the sound is recorded on the recording medium of the recording / reproducing device. While recording data, the time function at the time of voice input is recorded on the recording medium by the clock function built into the recording / reproducing device, and the time corresponding to the voice data is displayed on the display of the recording / reproducing device when the voice data is reproduced. Time data can be automatically recorded on the recording medium only by voice input, and the voice data is played back, and the time is displayed with sufficient time while watching the time displayed on the display of the recording / playback device. Data can be input to a processing personal computer or the like.

Further, when the type of work is changed, the work name is input by voice into a portable personal computer having a voice dialogue function through a microphone, and in response to this, the personal computer responds to this by using an earphone worn by the observer through the voice dialogue function. When the observer responds to the voice through the microphone, the work name and the time data indicating the break of the work are recorded on the recording medium of the personal computer. The input operation can be performed reliably even indoors.

In addition to measuring the time required for each type of work, the physical load applied to the worker within the work time for each type is measured, and the load data and the work time data are measured for each type of work. On a predetermined recording medium,
From the obtained data, the relation between each work, the work time, and the work load can be easily grasped.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a first embodiment using a video camera.

FIG. 2 is a flowchart showing a work procedure.

FIG. 3 is an explanatory diagram showing a second embodiment in which a worker also serves as an observer.

FIG. 4 is an explanatory diagram showing a third embodiment in which an observer gets on a small car.

FIG. 5 is an explanatory diagram showing a fourth embodiment using a portable personal computer.

FIG. 6 is an explanatory diagram showing a fifth embodiment using a recording / reproducing device.

FIG. 7 is an explanatory diagram showing an example of a barcode sheet for time input.

FIG. 8 is an explanatory diagram showing another seventh embodiment using a recording / reproducing device.

FIG. 9 is an explanatory diagram showing a tenth embodiment for measuring a work load of a worker.

FIG. 10 is a flowchart illustrating a work procedure according to the tenth embodiment.

FIG. 11 is a graph showing changes in body temperature measured according to the magnitude of the time quota.

FIG. 12 is a graph showing changes in body temperature measured for different tasks.

FIG. 13 is a Pareto chart for each work name showing the effect of a time constraint.

FIG. 14 is a Pareto chart for each work name representing a work load.

FIG. 15 is a Gantt chart showing in chronological order the contents of work performed within a fixed time for each worker.

FIG. 16 is a Gantt chart showing work load data according to the length of high illuminance time in the line of sight.

FIG. 17 is a Gantt chart showing constraints on operation of equipment and constraints on work order.

FIG. 18 is an eleventh example of measuring the workload of a worker / observer.
It is explanatory drawing which shows embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Dark room 11 Worker 12 Observer 14 Infrared video camera 15 Liquid crystal display 16 Microphone 17 Night vision glasses 18 Work environment sensor 19 Earphone 20 Portable personal computer 21 Hand switch 22, 63-65 Ecological sensor 25 Data processing personal computer 30 Worker and Observer 32 Small car 35 Vehicle-mounted personal computer 40, 50 Recording / reproducing device 43, 44 Barcode sheet 44a to 44o Barcode 45 Barcode reader 66 Wireless communication device 69 Video camera 70 Goggles

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Masaya Kaneko 210 Nakamura, Minamiashigara-shi, Kanagawa Prefecture Inside Fuji Photo Film Co., Ltd. Inventor Yoshio Ohara 210 Nakanuma, Minamiashigara-shi, Kanagawa Fuji Photo Film Co., Ltd.

Claims (15)

[Claims] When an observer takes an image of a worker performing a plurality of types of work sequentially with a video camera and records a video signal of the work, the observer sends the work to the video camera when the type of work is changed. A method for collecting work data, comprising inputting a delimiter signal and recording the delimiter signal together with the video signal on a common recording medium. 2. An observer observes when a type of work is changed when an observer takes an image with a video camera and records the video signal through a personal computer, sequentially performing a plurality of types of work. A work data collection method, wherein a user inputs a separation signal to a personal computer and records the separation signal together with the video signal on a common recording medium. 3. The work load of the worker is measured during at least one work period defined by the delimiter signal, and the measured work load information is input to the personal computer and associated with the video signal or the delimiter signal. 3. The work data collection method according to claim 2, wherein the work data is recorded on the recording medium. 4. A work environment around a worker is measured during at least one work period defined by the delimiter signal, and the measured work environment information is input to the personal computer to output the video signal or the delimiter signal. 4. The information is recorded on the recording medium in association with each other.
Work data collection method described. 5. The work data collection method according to claim 1, wherein the delimiter signal is an image signal or an audio signal. 6. The apparatus according to claim 1, wherein the delimiter signal is used as a cue signal when reproducing at least one of a video signal, work load information, and work environment information from a recording medium. Or described work data collection method. 7. The work data collection according to claim 1, wherein at the time of inputting the delimiter signal, work name data representing a work type is input to a video camera or a personal computer and recorded. Method. 8. The work data collection method according to claim 1, wherein the video camera is an infrared video camera capable of capturing an image of a work in a dark room. 9. The work data collection method according to claim 1, wherein the observer also serves as an operator. 10. The work data collection method according to claim 1, wherein the observer performs work observation using a self-propelled moving object. 11. An observer observes that a worker sequentially performs a plurality of types of work, and is connected to a personal computer when a type of work is changed or when each type of work is started and ended. Selecting the corresponding work name from the display means and performing an input operation to the personal computer, whereby the data of the work name is recorded together with the data of the input time on a recording medium of the personal computer. Data collection method. 12. An observer observes that a worker sequentially performs a plurality of types of work, and is connected to a personal computer when the type of work is changed or when each type of work starts and ends. By inputting the corresponding work name by voice through the microphone, the input voice data is converted into character data in the personal computer, and the time data at the time of voice input together with the character data is recorded on the recording medium of the personal computer. A work data collection method characterized by being recorded. 13. An observer observes that a worker sequentially performs a plurality of types of work, and when the type of work is changed or when each type of work starts and ends, the corresponding work is performed through a microphone. By voice inputting the name to the recording / reproducing device, the voice data is recorded on the recording medium of the recording / reproducing device, and the time data at the time of the voice input is recorded on the recording medium by a clock function incorporated in the recording / reproducing device, A method for collecting work data, wherein a time corresponding to the audio data is displayed on a display unit of the recording / reproducing apparatus when the audio data is reproduced. 14. A work name is input through a microphone to a portable personal computer with a voice interactive function when the type of work is changed while an observer observes a state in which the worker sequentially performs a plurality of types of work. In response to this, the personal computer verifies the voice to the observer through earphones worn by the observer using the voice dialogue function, and the observer responds to this through the microphone to indicate the work name data and the break of the work. A work data collecting method, wherein time data is recorded on a recording medium of a personal computer. 15. An observer observes a state in which a worker sequentially performs a plurality of types of work, measures the time required for each type of work, and notifies the worker within the work time of each type. A method for collecting work data, comprising measuring such a physical load and recording the load data and the work time data on a predetermined recording medium for each type of work.