JPH0323046B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a sleeping posture information recording and reproducing device for recording the sleeping posture and other information of a subject and using it for analyzing the sleeping condition. It is something.

[Prior Art] In recent years, medical research on sleep has progressed, and in some cases it has progressed to the point where it can be applied to medical treatment. For example, observing and analyzing a subject's brain waves and body movements (large ones include turning over, small ones include tension in some muscles) during a night's sleep can help detect neurological disorders early. It has been found to be very effective for diagnosis. Analyzing sleep states like this requires not only the information obtained by sensors attached to the body surface to measure brain waves and myoelectric waves, but also the actual observation of the state of turning over and the movements of the limbs. is said to be very important.

Fig. 4 is a diagram showing an example of recording on a folded recording paper of a pen-writing recorder, Fig. 5 is a block diagram showing a conventional sleep position information recording and reproducing device, and Fig. 6 is a diagram showing the recording and reproducing of the sleep position information of Fig. 5. FIG. 3 is a diagram showing a playback screen of a monitor television in the device. In Figure 4,
103 is a folded recording paper of a pen recorder, 1
04 is a stored waveform on the recording paper 103, and 105 is a chart number printed in advance on each folded page of the recording paper 103. In Figure 5,
1 is a monochrome high-sensitivity television camera for photographing the subject; 2 is a video timer with a built-in clock and a function to superimpose and display the clock's time display on the input video signal. 3 is a cassette-type video tape recorder that performs recording and playback; 3a is a cassette tape that is a recording medium of the video tape recorder 3; 4 is a monitor for a recording screen or a monitor television used for screen playback;
5 is a video signal cable for connecting each device, 100 is a sleeping subject, 101 is subject 1
Various sensors attached to the body surface of 00,
102 is a pen recorder for amplifying and recording the signal from the sensor 101, and 103 is a folded recording paper of the pen recorder 102. In FIG. 6, 4 is a monitor television, 6 is a sleeping image photographed by the television camera 1, and 7 is a superimposed time display at the time of photographing.

Next, the operation of the conventional sleep position information recording and reproducing apparatus shown in FIG. 5 will be described. Subject 10
The image of No. 0's sleeping position was taken using a monochrome high-sensitivity TV camera 1 because the image was taken under low illumination during sleep, and the video timer device 2 recorded the time at the time the image was taken. Superimposed. The above image is recorded on a cassette tape 3a by a video tape recorder 3. At the same time, in order to observe brain waves and muscle movements during sleep, a sensor 101 attached to the body surface of the subject 100 and a pen-writing recorder 102 are used to monitor the subject's
00's brain waves, electromyography, etc. are recorded on the recording paper 103 as a recording waveform 104.

Now, when the doctor analyzes this result after that, he can learn the characteristics of body movements such as tossing and turning from the sleeping posture image 6 of the subject 100 on the playback screen of the monitor TV 4 shown in FIG. The passage of time can be known from the time display 7 on the playback screen of the monitor television 4. On the other hand, the brain waves of subject 100,
Information from a sensor 101 attached to the body surface, such as a myoelectric sensor, is analyzed by reading a recorded waveform 104 on a recording paper 103 shown in FIG. The passage of time on the recording paper 103 can be known from the chart number 105 printed in advance on each folded page.

[Problems to be Solved by the Invention] Since the above-described conventional sleep posture information recording and reproducing device is configured as described above, when analyzing the recording, the image recorded and reproduced by the video tape recorder 3 and the image of the sensor 101 are analyzed. Recorded waveform 104 on recording paper 103 of pen recorder 102 that records signals
This was done separately because there was no way to synchronize the two. The video tape recorder 3 only looks at the characteristics of body movements, and when an abnormal state occurs in the recorded waveform 104, it is very effective for analysis to look at the body image at that time. The problem is that since the time display 7 displayed on the playback screen of the monitor television 4 and the chart number 105 printed on the recording paper 103 are different, it is extremely difficult to match the two records at the same time. It was hot.

Furthermore, recording images on the video tape recorder 3 has the following problems. One of them is that the maximum recording time of the cassette tape 3a of the cassette-type video tape recorder 3 is 8 hours.
When recording the entire night's sleep, it was necessary to replace the cassette tape 3a midway through the recording. Another method for long-time recording is the frame-drop recording method, but it is not suitable for this purpose because smooth motion analysis is required. Another problem is that since the image is taken while the subject is sleeping, it is necessary to reduce the illuminance to about 3 lux or less depending on the subject 100. In that case, the monochrome high-sensitivity television camera 1 is Even when used, it was very difficult to take pictures.

This invention was made to solve this problem, and it is possible to easily compare the image of the subject's sleeping position with the waveforms recorded on recording paper such as brain waves and myoelectric waves from the sensor to determine the sleeping state. To provide a sleeping posture information recording and reproducing device capable of performing analysis, analyzing sleeping posture for a long time, and photographing the sleeping posture for a long time even under low illumination.

[Means for Solving the Problems] A sleeping posture information recording and reproducing device according to the present invention photographs the sleeping posture of a sleeping subject using a first camera provided near the subject, and at the same time, A second camera installed near the pen-writing recorder, etc., captures the recorded waveform from the pen-writing recorder, etc., which records signals from sensors such as brain waves, and records each image of the first camera and the second camera. At the same time, a chart number representing the page of the recording paper transmitted from a pen recorder, etc. is displayed on this composite image, and the composite image is recorded and played back by a video tape recorder, etc. This is how it was done.

[Function] In the sleeping posture information recording and reproducing device of the present invention, two cameras, a first camera and a second camera, are provided, and an image of the subject's sleeping posture taken by the first camera and a second camera are provided. The image of the waveform recorded by a camera on a recording paper such as a pen recorder is synthesized, and further,
A composite image including chart numbers representing pages of recording paper such as a pen recorder is recorded and played back by a video tape recorder or the like.

[Embodiment] Fig. 1 is a block diagram showing a sleeping position information recording/playing device which is an embodiment of the present invention, and Fig. 2 shows a playback screen of a monitor television in the sleeping position information recording/playing device of Fig. 1. 3 are perspective views showing the external appearance of the sleeping posture information recording and reproducing device shown in FIG. 1. In FIG. 1, 1 is a pen writing recorder 102.
A high-sensitivity monochrome television camera 2 captures the recorded waveform 104 (see FIG. 4) on the recording paper 103 of the camera 2, which has a built-in clock and displays the clock's time display superimposed on the input video signal. 3 is a cassette-type video tape recorder for recording and playback; 3a is a cassette tape which is the recording medium of the video tape recorder 3; 4 is a monitor for the recording screen or used for screen playback. 5 is a video signal cable for connecting each device; 8 is an infrared television camera for photographing the subject; 9 is an infrared lamp for certification; 10 is the television camera 1 and the infrared television camera 8; An image synthesizer 11 that synthesizes the images of the cameras on the stand receives a signal of chart number 105 (see FIG. 4) representing the page of the recording paper 103 sent from the pen recorder 102, and this chart number 105 A character video signal generator having a function of superimposing and displaying 12
1 is an operation panel provided so that the operator can power on the device and stop recording and playback from a single location, 13 is a control signal cable for connecting each operation, and 100 is a sleeping subject. 101 is various sensors attached to the body surface of the subject 100, 102 is a pen recorder for amplifying and recording the signal of the sensor 101, and 103 is a folded version of the pen recorder 102. It is a recording paper. Second
In the figure, 4 is a monitor TV, 6 is a sleeping image taken by an infrared TV camera 8, 7 is a superimposed time display at the time of shooting, 1
4 is a waveform image obtained by the pen recording recorder 102; 15
is a number on which the chart number 105 of the folded page of the recording paper 103 of the pen recorder 102 is superimposed. In FIG. 3, 2 is a video timer device, 3 is a video tape recorder, and 3 is a video timer device.
a is a cassette tape, 4 is a monitor television, 10 is an image synthesizer, 11 is a character video signal generator, 12
1 is an operation panel, and 16 is a cabinet for storing equipment.

Next, the operation of the sleeping position information recording and reproducing apparatus, which is an embodiment of the present invention shown in FIG. 1, will be described. The sleep position information recording and playback device with the equipment configuration shown in Figure 1 is a dedicated device that has all the functions necessary for analyzing sleep states, so the main body part can be assembled into one unit as shown in Figure 3. Cabinet 16
It can be stored in the holder for downsizing. Now, in FIG. 1, the sleeping posture of the subject 100 is photographed by an infrared television camera 8 under illumination of an infrared lamp 9.
It is carried out by. This enables photography under low illumination of about 3 lux or less. The image of the subject 100 taken by the infrared television camera 8 and the image of the recorded waveform 104 on the recording paper 103 by the pen-writing recorder 102 of the television camera 1 are combined into one screen as a composite screen by the image combiner 10.
The pen recorder 102 reads the chart number 105 on the folded page of the recording paper 103 by an appropriate method and sends it as a digital signal to the character video signal generator 11 via the control signal cable 13. The character video signal generator 11 receives the digital signal, generates a video signal with chart number 105, and displays it on the composite screen by the image synthesizer 10. Furthermore, a time display 7 by the video timer device 2 is added to this composite screen to obtain a playback screen on the monitor television 4 as shown in FIG. recorded. Two video tape recorders 3 are built in, one of which starts recording from the time of the initial recording start, and the other one is activated after a certain period of time has elapsed after the initial recording start. The elapsed time is measured by the chart number 105 and is activated after a certain chart number 105 is received. With such an operation, the subject 100
The state record during the entire night of sleep is recorded without any loss.

Next, a reproduction operation for analyzing the sleeping posture of the subject 100 will be described. When a doctor or the like analyzes a sleeping posture, the doctor or the like analyzes the sleeping posture by looking at the playback screen of the monitor television 4 shown in FIG. Thereby, while observing characteristic movements such as turning over in bed, it is possible to simultaneously view waveforms 104 recorded by various sensors 101 on the body surface such as electroencephalograms and myoelectric waves. In addition,
Waveform image 14 on the playback screen of the monitor television 4
When observing small waveforms that cannot be distinguished by
Looking at the superimposed number 15 corresponding to chart number 105, record paper 1 shown in FIG.
You can search for chart number 105 on the folded page 03 and view the original waveform at the same location.

In addition, in the above embodiment, the infrared television camera 8 is used to take the sleeping image 6 of the subject 100, but a monochrome high-sensitivity type television camera may be used depending on the case. .

Further, in the above embodiment, a case was explained in which two television cameras, the first and second television cameras of the television camera 1 and the infrared television camera 8, were used, but a third television camera was used, and other The states of the measuring instruments may be photographed at the same time and combined on the same playback screen.

[Effects of the Invention] As described above, the present invention provides a sleeping posture information recording and reproducing device in which the sleeping posture of a sleeping subject is photographed by the first camera, and at the same time, the second camera is used to record sensors such as brain waves. The recorded waveform is photographed from a pen recorder etc. that records the signal from the first
The images of the second camera and the second camera are combined to obtain a composite image, and a chart number representing the page of the recording paper from a pen recorder etc. is also displayed on this composite image, and the composite image is displayed as a video. Since the configuration is configured to record and play back using a tape recorder, etc., when analyzing the sleeping posture of the subject, the relationship between the image of the sleeping posture and the recorded waveform of the signal from the sensor can be checked on the same playback screen. This provides an excellent effect in that the sleep state of the subject can be easily and reliably analyzed over a long period of time.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a sleeping position information recording and reproducing apparatus which is an embodiment of the present invention, FIG. 2 is a diagram showing a playback screen of a monitor television in the sleeping position information recording and reproducing apparatus of FIG. 1, and FIG. The figures are a perspective view showing the external appearance of the sleeping posture information recording and reproducing device shown in Fig. 1;
The figure shows an example of recording on folded recording paper by a pen-writing recorder, FIG. 5 is a block diagram showing a conventional sleep posture information recording and reproducing device, and FIG. 6 shows the sleep posture information recording and reproducing device of FIG. 5. FIG. 3 is a diagram showing a playback screen of a monitor television. In the figure, 1...TV camera, 2...Video timer device, 3...Video tape recorder,
3a...Cassette tape, 4...Monitor TV,
5... Video signal cable, 6... Sleeping image, 7... Time display, 8... Infrared television camera, 9... Infrared lamp, 10... Image synthesizer,
11... Character video signal generator, 12... Operation panel, 13... Control signal cable, 14... Waveform image, 15... Number, 16... Cabinet, 1
00... Subject, 101... Sensor, 102...
Pen recorder, 103... Recording paper, 104...
Recording waveform, 105...chart number. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of Claims] 1. A first camera that captures an image of the subject while he or she is sleeping, and a second camera that captures waveforms from a pen recorder or the like that records signals from sensors such as brain waves. an image synthesizing means for synthesizing each image of the first camera and the second camera to obtain a composite image; and receiving a chart number indicating a page of recording paper transmitted from the pen recorder or the like; A sleeping posture information recording and reproducing device characterized by comprising display means for displaying a number on the composite image, and a video tape recorder capable of recording and reproducing the composite image. 2. The sleeping posture information recording and reproducing device according to claim 1, wherein the first camera is an infrared television camera. 3. The sleeping posture information recording and reproducing apparatus according to claim 1, characterized in that two video tape recorders are provided, and the two video tape recorders are switched in conjunction with the operation of the pen-writing recorder. .