JPH0937230A - Image monitor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a monitor center at a remote location to grasp a fault which is difficult to recognize by image information of an image pickup camera e.g. the fault of a temperature and a humidity at a monitored point. SOLUTION: This monitor is provided with a fault occurrence detection means 1-6 that detects occurrence of a fault which is difficult to discriminate only with information from an image caught by an image pickup camera 1-1 at a monitored point 1a, an image generating means 1-7 providing the output of an image signal to display fault occurrence by a symbol or a graphic depending on the fault content to be detected, and an image synthesis means 1-5 superimposing the image generated by the image generating means 1-7 onto the image picked up by the image pickup camera 1-1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image monitoring device, and more particularly to an image monitoring device for transmitting an image taken at a monitored point and a message indicating occurrence of an abnormal situation to a remote monitoring center by using a telephone line. It is about.

[0002]

2. Description of the Related Art FIG. 15 is a block diagram showing a conventional image monitoring apparatus. In the figure, reference numeral 1 is a monitored point, and a monitored area is remotely monitored by a telephone line a via an exchange 3 by capturing an image of a monitored area with an imaging camera described later, processing the video signal into a digital image signal. Transmit to. The monitoring center 2 converts the transmitted digital image signal into an analog image signal and displays an image of the monitored area on a monitor television.

An image pickup camera 1-1 and an image pickup camera 1 which pick up an image of a monitored area and output a video signal b at a monitored point 1.
-1 from the video signal b output from the digital image signal c
Signal converting means 1-2 for converting the digital image signal c into an image compression means 1 for outputting the compressed image signal d
3. The communication means 1-4 for transmitting the compressed image signal d to the monitoring center 2 via the telephone line a.

On the other hand, the communication means 1-4 for inputting the signal transmitted from the monitored point 1 through the telephone line a to the monitoring center 2 and outputting the compressed image signal d, the compressed image signal d.
Of the monitored area by inputting the image signal converting means 2-2 for converting the digital image signal c at the time of transmission obtained by the expansion to the analog video signal b and the video signal b. A monitor television 2-3 for displaying an image is provided.

Next, the operation of the conventional apparatus will be described. At the monitored point 1, the video signal b of the monitored area output from the image pickup camera 1-1 is converted into a digital image signal c by the signal converting means 1-2. Digital image signal c
Is compressed by the image compression unit 1-3 in order to improve communication efficiency, and is output to the communication unit 1-4 as a compressed image signal d and transmitted to the monitoring center 2 via the telephone line a.

In the monitoring center 2, the communication means 1-
Reference numeral 4 converts the signal transmitted from the monitored point 1 into a compressed image signal d. The compressed image signal d is the image expansion means 2
The data is decompressed by -1 and output as a digital image signal c. The image signal converting means 2-2 converts the digital image signal c into a video signal b. Monitor television 2-3
Displays an image of the monitored area based on the video signal b.

In the conventional image monitoring apparatus, the monitor monitors the image transmitted from the image pickup camera 1-1 at the monitored point 1 on the monitor television 2-2 of the monitoring center 2 to detect an abnormality in the monitored area. I was confirming the existence of.

[0008]

Since the conventional image monitoring apparatus is configured as described above, the abnormality monitoring information is limited to the image information captured by the imaging camera 1-1 at the monitored point, and the monitored area is limited. Camera 1-1 for temperature, humidity, etc.
However, there is a problem that it is difficult to monitor abnormal contents that are difficult to catch.

The present invention has been made in order to solve the above problems, and is a symbol, figure, mark, color, graph, or graph superimposed on the image of the monitored area captured by the imaging camera. An object of the present invention is to obtain an image monitoring device capable of identifying an occurrence of an abnormal situation and a place where the abnormal situation occurs by displaying characters.

[0010]

According to a first aspect of the present invention, there is provided an image monitoring apparatus, an image pickup camera for picking up an image of a monitored area, and an abnormality occurrence detection for detecting an abnormal situation in the monitored area. Means, an image generating means for generating an image displaying the occurrence of an abnormal situation detected by the abnormality occurrence detecting means as a symbol or a graphic, and a symbol or a graphic generated by the image generating means on the image captured by the imaging camera. An image synthesizing means for superimposing a composite image to generate a synthetic image, a signal converting means for digitally converting the synthetic image signal output from the image synthesizing means, and a digital image signal output from the signal converting means. Information transmitted from the monitored point is provided with image compression means and communication means for transmitting the compressed image signal output from the image compression means to the monitoring center. To the monitoring center to enter,
Communication means for receiving the transmitted information, image expansion means for expanding the compressed image signal output from the communication means, and image signal conversion for converting the digital image signal output by the image expansion means into a composite image signal Means and a monitor television for inputting the composite image signal and displaying an image.

An image monitoring apparatus according to a second aspect of the present invention is an image monitoring camera for picking up an image of a monitored area at a monitored point, an abnormality occurrence detecting means for detecting occurrence of an abnormal situation in the monitored area, and the abnormality occurrence. Image generation means for generating an image of the occurrence of an abnormal situation detected by the detection means in the image picked up by the image pickup camera with a mark at a position where an abnormality has occurred, and the image generation for the image picked up by the image pickup camera. An image synthesizing unit that superimposes the mark generated by the unit to generate a synthetic image, a signal converting unit that digitally converts the synthetic image signal output from the image synthesizing unit, and a digital signal output from the signal converting unit. An image compression means for compressing an image signal and a communication means for transmitting a compressed image signal output from the image compression means to a monitoring center are provided, and the monitored object is provided. Communication means for receiving the transmitted information, image decompressing means for decompressing the compressed image signal output from the communication means, and the image decompressing means are output to the monitoring center for inputting the information transmitted from the point. The image signal converting means for converting the digital image signal into a composite image signal, and a monitor television for inputting the composite image signal and displaying an image are provided.

In the image monitoring apparatus according to the invention of claim 3, an image pickup camera for picking up an image of the monitored area, an abnormality occurrence detecting means for detecting the occurrence of an abnormal situation, and an abnormality occurrence detecting means for detecting the abnormal situation at the monitored point. When an abnormal situation occurs, an image synthesizing unit that changes a color of a part or the whole of an image captured by the image capturing camera to generate a synthetic image signal, and a synthetic image signal output from the image synthesizing unit are digitally converted. The monitored device includes signal conversion means, image compression means for compressing the digital image signal output from the signal conversion means, and communication means for transmitting the compressed image signal output from the image compression means to a monitoring center. Communication means for receiving the transmitted information and decompression of the compressed image signal output from the communication means are input to the monitoring center for inputting the information transmitted from the point. Cormorant image decompressing means, and an image signal conversion means for converting the digital image signal output from the image expansion means in the composite image signal, and inputs the combined image signal is obtained by a monitor television for displaying an image.

An image monitoring apparatus according to a fourth aspect of the present invention is an image monitoring apparatus which captures an image of a monitored area at a monitored point, a sensor which outputs a change in the state of the monitored object, and a signal output from the sensor. Image generation means for generating an image of a graph showing the change and superimposing the image of the graph generated by the image generation means on a part of the image captured by the imaging camera to generate a composite image signal. Image synthesizing means for generating, signal converting means for digitally converting the synthetic image signal output from this image synthesizing means, image compressing means for compressing the digital image signal output from this signal converting means, and this image compressing means And a communication means for transmitting the compressed image signal output from the monitoring center to the monitoring center, and transmitting the information transmitted from the monitored point to the monitoring center. Communication means for receiving the information, an image expansion means for expanding the compressed image signal output from the communication means, and an image signal conversion means for converting the digital image signal output by the image expansion means into a composite image signal. , A monitor television for inputting a composite image signal and displaying an image.

According to a fifth aspect of the present invention, there is provided an image monitoring apparatus, wherein an image pickup camera for picking up an image of a monitored area is provided at a monitored point, and a signal conversion means for converting a video signal output from the image pickup camera into a digital image signal. Image compression means for compressing the digital image signal output from the signal conversion means,
Abnormality occurrence detection means for detecting the occurrence of an abnormal situation, A / D conversion means for converting the analog signal output by the abnormality occurrence detection means into a status display signal, a compressed image signal output from the image compression means, and the The status display signal output from the A / D conversion means is input, and the signal multiplexing means for multiplexing the signal and the communication means for transmitting the multiplexed signal output by the signal multiplexing means to the monitoring center are provided. A communication means for receiving information transmitted from the monitored point and the multiplexed signal output from the communication means are input to the monitoring center, and a compressed image signal and a status display indicating occurrence of an abnormal situation are input. A signal separating means for separating the signal into a signal, an image expanding means for expanding the compressed image signal outputted by the signal separating means, and a digital image signal outputted by the image expanding means are inputted and a video is inputted. And an image signal conversion means for converting items,
An image generation unit that inputs a status display signal indicating the occurrence of an abnormal situation output from the signal separation unit and generates a generated image signal of a symbol or a figure indicating the occurrence of an abnormal situation, the image signal conversion unit, and the image generation And an image synthesizing means for inputting the image signals output from the means and a combined image signal output from the image synthesizing means and a monitor television for displaying the image. Is.

According to a sixth aspect of the present invention, there is provided an image monitoring apparatus, wherein an image pickup camera for picking up an image of a monitored area is provided at a monitored point, and a signal conversion means for converting a video signal output from the image pickup camera into a digital image signal. Image compression means for compressing the digital image signal output from the signal conversion means,
Abnormality occurrence detection means for detecting the occurrence of an abnormal situation, A / D conversion means for converting the analog signal output by the abnormality occurrence detection means into a status display signal, a compressed image signal output from the image compression means, and the The status display signal output from the A / D conversion means is input, and the signal multiplexing means for multiplexing the signal and the communication means for transmitting the multiplexed signal output by the signal multiplexing means to the monitoring center are provided. A communication means for receiving information transmitted from the monitored point and the multiplexed signal output from the communication means are input to the monitoring center, and a compressed image signal and a status display indicating occurrence of an abnormal situation are input. A signal separating means for separating the signal into a signal, an image expanding means for expanding the compressed image signal outputted by the signal separating means, and a digital image signal outputted by the image expanding means are inputted and a video is inputted. And an image signal conversion means for converting items,
An image generation unit that inputs a status display signal indicating the occurrence of an abnormal situation output from the signal separation unit and generates a generated image signal of a symbol or a figure indicating the occurrence of an abnormal situation, the image signal conversion unit, and the image generation And an image synthesizing means for inputting the image signals output from the means and a combined image signal output from the image synthesizing means and a monitor television for displaying the image. Is.

According to a seventh aspect of the present invention, there is provided an image monitoring apparatus, wherein an image pickup camera for picking up an image of a monitored area is provided at a monitored point, and a signal conversion means for converting a video signal output from the image pickup camera into a digital image signal. Image compression means for compressing the digital image signal output from the signal conversion means,
Abnormality occurrence detection means for detecting the occurrence of an abnormal situation, A / D conversion means for converting the analog signal output by the abnormality occurrence detection means into a status display signal, a compressed image signal output from the image compression means, and the The status display signal output from the A / D conversion means is input, and the signal multiplexing means for multiplexing the signal and the communication means for transmitting the multiplexed signal output by the signal multiplexing means to the monitoring center are provided. A communication means for receiving information transmitted from the monitored point and the multiplexed signal output from the communication means are input to the monitoring center, and a compressed image signal and a status display indicating occurrence of an abnormal situation are input. A signal separating means for separating the signal into a signal, an image expanding means for expanding the compressed image signal outputted by the signal separating means, and a digital image signal outputted by the image expanding means are inputted and a video is inputted. And an image signal conversion means for converting items,
The video signal output from the image signal converting means and the status display signal indicating the occurrence of the abnormal situation output from the signal separating means are respectively inputted to generate the abnormal situation or the occurrence and occurrence of the abnormal situation at the monitored point. An image synthesizing unit that generates a synthetic image signal indicating the location and the color change of the whole or a part of the image; and a monitor television that inputs the synthetic image signal output from the image synthesizing unit and displays the image. Be prepared.

According to an eighth aspect of the present invention, there is provided an image monitoring apparatus, wherein an image pickup camera for picking up an image of the monitored point is provided at the monitored point, and a signal conversion for converting a video signal output from the image pickup camera into a digital image signal. Means, an image compression means for compressing the digital image signal output by the signal conversion means, a sensor for outputting a change in the state of the monitored object, and an A / A for converting the analog signal output by the sensor into a state display signal. D conversion means, signal multiplexing means for inputting the compressed image signal output from the image compression means and the status display signal output from the A / D conversion means, and multiplexing the signals, and this signal multiplexing Communication means for transmitting the multiplexed signal output by the means to the monitoring center, and the communication means for receiving information transmitted from the monitored point at the monitoring center; At the monitored point output from the means, the multiplexed signal is input, the signal separation means for separating the compressed image signal and the status display signal, and the compressed image signal output by the signal separation means are input to expand the image. Image decompression means for performing, image signal conversion means for converting a digital image signal output by the image decompression means into a video signal, and a status display signal indicating a change in the status of the monitored object output by the signal separation means are input. An image generating means for generating an image of a graph, an image synthesizing means for inputting image signals output from the image signal converting means and the image generating means, and generating a synthesized image signal, and the image synthesizing means. A monitor television for inputting the output composite image signal and displaying an image is provided.

According to a ninth aspect of the present invention, there is provided an image monitoring apparatus, wherein an image pickup camera for picking up an image of a monitored area is provided at a monitored point, and a signal conversion means for converting a video signal output from the image pickup camera into a digital image signal. Image compression means for compressing the digital image signal output from the signal conversion means,
Abnormality detection means for detecting the occurrence of an abnormal situation, A / D conversion means for converting the analog signal output by the abnormality occurrence detection means into a status display signal, the digital image signal output from the image compression means, and the A signal multiplexing means for inputting the status display signal output from the A / D converting means and multiplexing the signals, and a multiplexed digital signal output by the signal multiplexing means for transmitting to the monitoring center. A communication means for performing communication control is provided, and in the monitoring center,
Communication means for controlling communication of information transmitted from the monitored point, and signal separation means for inputting the multiplexed digital signal output from the communication means and separating the digital image signal and the status display signal An image signal converting means for converting a digital image signal output by the signal separating means into a video image signal, and a status display signal indicating the occurrence of an abnormal situation output by the signal separating means are inputted and the occurrence of the abnormal situation is displayed as a character. Image generating means for generating an image shown as information,
The image signals output from the image signal converting means and the image synthesizing means are respectively input, and the image synthesizing means for generating a synthetic image signal and the synthetic image signal output from the image synthesizing means are input to display an image. It is equipped with a monitor TV for displaying.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1. Hereinafter, Embodiment 1 of the present invention will be described. FIG. 1 is a configuration diagram showing the present embodiment. The same or corresponding parts as those in FIG. 15 are designated by the same reference numerals, and the description thereof will be omitted. In the figure, reference numeral 1a is a monitored point in the present embodiment, and in addition to the conventional monitored point 1, a temperature abnormality that is difficult to judge only by information from an image captured by the imaging camera 1-1. An abnormality occurrence detecting means 1-6 for detecting the occurrence of an environmental abnormality such as humidity abnormality and outputting an abnormality detection signal e, and a generated image signal for displaying the content of the abnormality by a symbol or a figure based on the abnormality detection signal e The image generation means 1-7 outputting f, and the generated image signal f generated by the image generation means 1-7 are superimposed on the video signal b carrying the image signal of the monitored area imaged by the imaging camera 1-1. And an image synthesizing unit 1-5 for outputting a synthetic image signal g.

Therefore, the monitoring center 2 reproduces the composite image signal g on the monitor television 2-3, so that the monitor detects an abnormality while monitoring the image of the monitored area captured by the imaging camera 1-1. The abnormality detection by the means 1-6 can be monitored at the same time. Although not shown, the abnormality occurrence detecting means 1-6 according to the present embodiment compares the temperature-converted output of the voltage sensor with a reference temperature converted into a voltage for determining the temperature abnormality with a comparator, and outputs the temperature sensor output. When the temperature exceeds the reference temperature, the abnormality detection signal e is output.

Next, the operation of this embodiment will be described. Anomaly occurrence detecting means 1-6 at the monitored point 1a
When detects an abnormality such as temperature or humidity, it outputs an abnormality detection signal e. Image generation means 1-7 to which the abnormality detection signal e is input
Generates an image displaying an abnormality with a symbol or a graphic according to the content of the abnormality, and outputs a generated image signal f. As the image displaying the abnormality, for example, an analog thermometer for indicating an abnormal temperature range as shown in FIG. 10B is shown.
Then, the image is changed according to the abnormality monitoring target.

The image synthesizing means 1-5 is an image pickup camera 1-1.
A composite image signal g obtained by superimposing the generated image signal f output from the image generating means 1-7 is output to the video signal b output from. The image synthesis signal g is converted into a digital image signal c by the signal conversion means 1-2, and then data-compressed by the image compression means 1-3 to become a compressed image signal d. The compressed image signal d is transmitted by the communication means 1-4 to the monitoring center 2 via the telephone line a.

In the monitoring center 2, the compressed image signal d transmitted from the monitored point 1a via the telephone line a is received by the communication means 1-4 and then output to the image expansion means 2-1. Then, the compressed image signal d is the image expansion means 2-
It is expanded by 1 and returned to the digital image signal c at the time of signal transmission and output to the image signal converting means 2-2. The digital image signal c is converted into an analog composite image signal g by the image signal conversion means 2-2 and converted into a video signal on the monitor television 2-3 for display.

The image displayed on the monitor television 2-3 is
When no abnormality is detected, the image of the monitored area captured by the imaging camera 1-1 is displayed as it is, but when an abnormality occurs, the image of the monitored area (see A in FIG. 10) is displayed. The image generation means 1 is provided at a part or a place where an abnormality occurs
The image of the analog thermometer (see B in FIG. 10) generated in -7 is superimposed to display the occurrence of abnormality. Further, it is also possible to flicker the displayed image for displaying the abnormality occurrence to evoke the abnormality occurrence to the monitor.

In the present embodiment, the monitored point 1a and
Although the example in which the monitoring center 2 is single has been described, the numbers of the monitored points 1a and the monitoring centers 2 are not particularly limited. Further, the example in which the number of the imaging cameras 1-1 is one has been described, but of course, the present invention does not particularly limit the number of the imaging cameras 1-1.

According to the present embodiment, in the monitoring center 2, the monitor monitors the image on the monitor television 2-3 to detect the monitored area captured by the image capturing camera 1-1 at the monitored point 1a. With monitoring, even abnormalities such as temperature and humidity that are difficult to capture only with the imaging camera 1-1 can be recognized from an image for displaying an abnormality that is a symbol or a figure. Therefore, the abnormality monitoring quality is improved.

Embodiment 2. 2 is a configuration diagram showing a second embodiment of the present invention. In the figure, the same or corresponding parts as those in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted. As described above, in the first embodiment, the image generation means 1 for generating an image for displaying the occurrence of the abnormality by a symbol or a graphic 1-
It had 7. Monitored point 1b in the present embodiment
Is an image signal (generated image signal f) of a mark indicating the occurrence of an abnormality in the monitored area or a device installed in the monitored area in place of the image generating means 1-7 and the location of the abnormality.
The image generating means 1-7a for generating In the present embodiment, for example, when the image of the mark is superimposed on the image of the food storage freezer installed in the monitored area, the temperature inside the refrigerator is abnormally increased.

Next, the operation of this embodiment will be described. Anomaly occurrence detection means 1-6 at the monitored point 1b
When detects an abnormality such as temperature or humidity, it outputs an abnormality detection signal e. Image generation means 1-7 to which the abnormality detection signal e is input
The symbol a generates an image displaying a mark (see C in FIG. 11) that identifies a location where an abnormality has occurred, and outputs a generated image signal f.

The image synthesizing means 1-5 is an image pickup camera 1-1.
To the video signal b output from the image generating means 1-7a
And outputs a composite image signal g obtained by superimposing the generated image signal f output from the. After the composite image signal g is converted into the digital image signal c by the signal conversion means 1-2,
The data is compressed by the image compression means 1-3 and compressed image signal d
Becomes The compressed image signal d is transmitted by the communication means 1-4 to the monitoring center 2 via the telephone line a.

In the monitoring center 2, the compressed image signal d transmitted from the monitored point 1b via the telephone line a is
After being received by the communication unit 1-4, it is output to the image expansion unit 2-1. Then, the compressed image signal d is the image expansion means 2
The digital image signal c which is expanded by -1 and is transmitted at the time of signal transmission
And is output to the image signal converting means 2-2. The digital image signal c is converted into an analog composite image signal g by the image signal conversion means 2-2 and converted into a video signal on the monitor television 2-3 for display.

When no abnormality is detected in the device or the like, the image displayed on the monitor television 2-3 is the monitored area including the device imaged by the imaging camera 1-1, but when an abnormality occurs. Superimposes a mark (see C in FIG. 11) indicating the location of the abnormality on the captured image of the device in the monitored area.

Therefore, according to the present embodiment, the monitoring person can monitor the occurrence of the abnormality while monitoring the image of the monitored area captured by the image capturing camera 1-1 on the monitor television 2-3, and at the same time, detect the occurrence of the abnormality. By monitoring the mark C displayed at the location, it is possible to recognize from the display screen even the location of the abnormality such as the temperature or humidity of the device which is difficult to be captured by the imaging camera 1-1 alone. Identification becomes easy, and an appropriate response to the occurrence of an abnormality can be made immediately.

Embodiment 3 In the above-described first embodiment, the image generating means 1-7 for displaying the occurrence of the abnormality by the symbol or the graphic is provided. The monitored point 1c in the present embodiment is an image captured by the imaging camera 1-1 instead of superimposing the symbol or figure generated by the image generating means 1-7 at the location of the abnormality in the monitored image. The image synthesizing unit 1-5a is provided in which the color D (see FIG. 12) of the abnormality occurrence point in the whole or image is changed. As a result, the monitoring center 2 can monitor an abnormality while monitoring the image of the monitored area captured by the imaging camera 1-1, and identify the location of the abnormality from the color change of the entire image or a part thereof. it can.

Upon receiving the abnormality detection signal e outputted from the abnormality occurrence detection means 1-6, the image synthesizing means 1-5a uses the abnormality detection signal e to display the entire image of the monitored area, or in the image,
Synthetic image signal g in which the color of the portion indicating the abnormality has been changed
Is output. The output composite image signal g is converted into a digital image signal c by the signal conversion unit 1-2, data-compressed by the image compression unit 1-3, and output as a compressed image signal d. The compressed image signal d is transmitted by the communication means 1-4 to the monitoring center 2 via the telephone line a.

At the monitoring center 2, the compressed image signal d transmitted from the monitored point 1c via the telephone line a is
After being received by the communication unit 1-4, it is output to the image expansion unit 2-1. Then, the compressed image signal d is the image expansion means 2
The digital image signal c which is expanded by -1 and is transmitted at the time of signal transmission
And is output to the image signal converting means 2-2. The digital image signal c is converted into an analog composite image signal g by the image signal conversion means 2-2 and converted into a video signal on the monitor television 2-3 for display.

The image displayed on the monitor television 2-3 is
When no abnormality is detected, the image of the monitored area captured by the imaging camera 1-1 is displayed as it is. When an abnormality occurs, for example, an abnormality occurs in the captured image of the monitored area. Change the color of the part you did. It is also possible to change the color according to the content of the abnormality that has occurred. For example, if the temperature rises abnormally, the color is "red", and if it is flooded, the color is "light blue". Further, the color change portion may be enlarged depending on the spread state of the abnormal state.

According to the present embodiment, the observer can recognize the location of the abnormality such as temperature and humidity which is difficult to be detected only by the imaging camera 1-1 from the color change of the image displayed on the monitor TV. Therefore, the location of the abnormality can be easily identified, and the abnormality can be promptly dealt with.

Fourth Embodiment 4 is a configuration diagram showing a fourth embodiment of the present invention. In the figure, the same or corresponding parts as those in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted. In the above-described first embodiment, the abnormality occurrence detecting means 1-6 for detecting the occurrence of the abnormality and the image generating means 1-7 for displaying the occurrence of the abnormality with a symbol or a graphic are provided.
The monitored point 1d in the present embodiment is obtained from a sensor 1-8 and a sensor 1-8 that indicate changes in the state (physical changes such as temperature and pressure) of the monitored area or equipment installed in the monitored area. The image generation means 1-7b is provided which plots the signal level of the outputted sensor output signal h at regular time intervals and generates an image of a graph showing a change in state.

Accordingly, in the monitoring center 2, the monitor camera 2-3 displays a composite image in which the image of the monitored area is superimposed on the image of the graph on the monitor television 2-3, so that the monitoring person can capture the image. While monitoring the image of the monitored area, it is possible to monitor the trend of anomaly by changing the graph.

The present embodiment will be described. The image generation means 1-7b, which has received the sensor output signal h indicating the temperature change from the sensor 1-8, plots the signal level of the sensor output signal h which changes with each time, and shows a graph image showing the state of the temperature change. The generated image signal f is output to the image synthesizing means 1-5.

The image synthesizing means 1-5 is an image pickup camera 1-1.
The video signal b output from the image generation means 1-7b
And outputs a composite image signal g obtained by superimposing the generated image signal f output from the. Then, the composite image signal g
Is converted into a digital image signal c by the signal conversion means 1-2, and then data is compressed by the image compression means 1-3 to become a compressed image signal d. The compressed image signal d is transmitted by the communication means 1-4 to the monitoring center 2 via the telephone line a.

In the monitoring center 2, the compressed image signal d transmitted from the monitored point 1d via the telephone line a is
After being received by the communication unit 1-4, it is output to the image expansion unit 2-1. Then, the compressed image signal d is the image expansion means 2
The digital image signal c which is expanded by -1 and is transmitted at the time of signal transmission
And is output to the image signal converting means 2-2. The digital image signal c is converted into an analog composite image signal g by the image signal conversion means 2-2 and converted into a video signal on the monitor television 2-3 for display.

The monitor TV 2-3 has a monitor center 2
In response to a request from the monitoring point 2 from the monitored point 1d
Graph E on the image of the monitored area or the image of the monitored area
Either of the images superimposed (see FIG. 13) is transmitted and displayed.

According to the present embodiment, the image pickup camera 1-1
Even the place where an abnormality such as temperature, humidity, etc., which is difficult to detect only by itself, can be recognized from the image of the monitored point displayed on the monitor TV 2-3, and the graph E superimposed on the image of the monitored point is displayed. It is possible to easily estimate the trend of the abnormality occurrence from the change of, and it is possible to promptly take measures against the abnormality occurrence.

Embodiment 5 FIG. 5 is a configuration diagram showing a fifth embodiment of the present invention. In the figure, parts that are the same as or correspond to those in FIG. The monitored point 1a in the first embodiment is the abnormality occurrence detecting means 1-6 for detecting the occurrence of the abnormality, and the image generating means 1 for displaying the occurrence of the abnormality with a symbol or a graphic.
-7, an image synthesizing unit 1-5 that superimposes the image generated by the image generating unit 1-7 on the image captured by the image capturing camera 1-1 is provided, and image synthesizing processing is performed by analog signals. The monitored point 1e in the present embodiment is
The video signal b output from the image pickup camera 1-1 is converted into a digital image signal c by the signal conversion means 1-2 and then compressed by the image compression means 1-3 to be converted into a compressed image signal d.

On the other hand, the abnormality detection signal e output from the abnormality occurrence detecting means 1-6 is converted into a digital state display signal i by the A / D converting means 1-10, and the signal multiplexing means 1
At -9, it is multiplexed with the compressed image signal d outputted from the image compression means 1-3 and outputted as a multiplexed signal j. The multiplexed signal j is transmitted by the communication means 1-4 to the monitoring center 2a via the telephone line a.

The monitoring center 2a receives the multiplexed signal j transmitted from the monitored point 1e at the communication means 1-4 at the communication means 1-4, and then outputs it to the signal separation means 2-4 to output a compressed image. The signal d and the status display signal i are separated. The compressed image signal d is decompressed by the image decompression means 2-1 and returned to the digital image signal c at the time of transmission, and is output to the image signal conversion means 2-2. Then, the digital image signal c is converted by the image signal converting means 2-2 into a video signal b for displaying an image of the monitored area imaged by the imaging camera 1-1. The state display signal i is converted by the image generation means 1-7c into a generated image signal f for displaying a symbol or a graphic B (see FIG. 10) indicating the occurrence of abnormality as an image and output.

The image synthesizing means 1-5 is the image signal converting means 2
-2 output video signal b and image generating means 1-7c
And the generated image signal f output by
Image signal of the monitored area imaged by the image capturing camera 1-1 of FIG. 1 is superimposed with a symbol or a graphic corresponding to the content of the abnormality detected by the abnormality occurrence detecting means 1-6.
Is generated and output to the monitor TV 2-3, and an image (Fig.
(See).

The image displayed on the monitor television 2-3 is
When no abnormality is detected, the image of the monitored area captured by the imaging camera 1-1 is displayed as it is, but when an abnormality occurs, a symbol or a symbol for specifying the content of the abnormality in the image of the monitored area is displayed. Since the figure B (see FIG. 10) is superimposed, the content of the abnormality can be easily specified.

In this embodiment, unlike the first to fourth embodiments, the video signal b by the analog signal and the generated image signal f are combined to generate the combined image signal g, whereas the signal processing is easy. In addition, the video signal b and the status display signal i including the abnormality occurrence information are multiplexed by a digital signal whose circuit configuration is simplified and transmitted to the monitoring center 2a, and the multiplexed signal j is processed on the monitoring center 2a side. Then, it is configured to be converted into a composite image signal g by an analog signal and output to the monitor television 2-3.

Therefore, according to the fifth embodiment, the multiplexed signal generated by digitally multiplexing the image signal and the abnormality detection signal at the monitored point is transmitted to the monitoring center, and the multiplexed signal is transmitted at the monitoring center. Is converted into a composite image signal for TV image display. As a result, normally, the number of monitored points is absolutely larger than the number of monitoring centers, but at the monitored points, the digital signal that simplifies the circuit configuration compared to image synthesis processing with analog signals is used. Since the image processing is performed, the circuit configuration of the monitored point is simplified. Therefore, in addition to the effects of the first embodiment, it is possible to bring about an economical saving effect of the entire apparatus regardless of the number of monitored points.

Embodiment 6 FIG. 6 is a configuration diagram showing a sixth embodiment of the present invention. In the figure, the same or corresponding parts as those in FIG. 5 are designated by the same reference numerals, and the description thereof will be omitted. The monitored point 1a in the second embodiment is the abnormality occurrence detecting means 1-6 for detecting the occurrence of the abnormality, the image generating means 1-7a for generating the image of the mark indicating the occurrence of the abnormality, and the imaging camera. The image captured by 1-1 is provided with the image synthesizing unit 1-5 that superimposes the image generated by the image generating unit 1-7a, and the image synthesizing process is performed by the analog signal. At the monitored point 1e in the present embodiment, the video signal b output from the image pickup camera 1-1 is converted into a digital image signal c by the signal conversion means 1-2 and then compressed by the image compression means 1-3. Convert to image signal d.

On the other hand, the abnormality detection signal e output from the abnormality occurrence detecting means 1-6 is converted into a digital state display signal i by the A / D converting means 1-10, and the signal multiplexing means 1
At -9, it is multiplexed with the compressed image signal d outputted from the image compression means 1-3 and outputted as a multiplexed signal j. The multiplexed signal j is transmitted by the communication means 1-4 to the monitoring center 2b via the telephone line a.

The monitoring center 2b receives the multiplexed signal j transmitted from the monitored point 1e by the communication means 1-4 by the communication means 1-4, and then outputs it to the signal separation means 2-4 to output a compressed image. The signal d and the status display signal i are separated. The compressed image signal d is decompressed by the image decompression means 2-1 and returned to the digital image signal c at the time of transmission, and is output to the image signal conversion means 2-2. Then, the digital image signal c is converted by the image signal converting means 2-2 into a video signal b for displaying the image of the monitored area imaged by the imaging camera 1-1. The state display signal i is converted by the image generation means 1-7c into a generated image signal f for displaying the mark C (see FIG. 11) indicating the occurrence of abnormality, and is output.

The image synthesizing means 1-5 is the image signal converting means 2
-2 output video signal b, and image generation means 1-7d
And the generated image signal f output by
The composite image signal g in which the mark C indicating the abnormality detected by the abnormality occurrence detecting means 1-6 is superimposed is monitored at the abnormality occurrence position of the device included in the image of the monitored area captured by the image capturing camera 1-1 of FIG. The image is output to the television 2-3 and the image (see FIG. 11) is displayed.

The image displayed on the monitor television 2-3 is
When no abnormality is detected, the image captured by the imaging camera 1-1 is displayed as it is. However, when an abnormality occurs, the mark C is superimposed on the location of the abnormality in the image of the monitored area. It is possible to easily specify the location of the abnormality.

In the present embodiment, unlike the first to fourth embodiments, the video signal b by the analog signal and the generated image signal f are combined to generate the combined image signal g, whereas the signal processing is easy. In addition, the video signal b and the status display signal i including the abnormality occurrence information are multiplexed by a digital signal whose circuit configuration is simplified and transmitted to the monitoring center 2a, and the multiplexed signal j is processed on the monitoring center 2a side. Then, the composite image signal g is converted into an analog signal and output to the monitor television 2-3.

Therefore, according to the sixth embodiment, the multiplexed signal generated by digitally multiplexing the image signal and the abnormality detection signal at the monitored point is transmitted to the monitoring center, and the multiplexed signal is transmitted at the monitoring center. Is converted into a composite image signal for TV image display. As a result, normally, the number of monitored points is absolutely larger than the number of monitoring centers, but at the monitored points, the digital signal that simplifies the circuit configuration compared to image synthesis processing with analog signals is used. Since the image processing is performed, the circuit configuration of the monitored point is simplified. Therefore, in addition to the effect of the second embodiment, it is possible to bring about the economical saving effect of the entire apparatus regardless of the number of monitored points.

Embodiment 7 FIG. FIG. 7 is a configuration diagram showing a seventh embodiment of the present invention. In the figure, the same or corresponding parts as those in FIG. 5 are designated by the same reference numerals, and the description thereof will be omitted. At the monitored point 1c in the third embodiment described above, the abnormality occurrence detection unit 1-6 which detects the abnormality occurrence and outputs the abnormality detection signal e, and the entire image or a part of the color image picked up by the imaging camera 1-1 is displayed. The image synthesizing means 1-5a which changes based on the abnormality detection signal e is provided, and the image synthesizing process is performed by the analog signal. Monitored point 1 in the present embodiment
e is the video signal b output from the imaging camera 1-1
Is converted into a digital image signal c by the signal conversion means 1-2 and then compressed by the image compression means 1-3 to be converted into a compressed image signal d.

On the other hand, the abnormality detection signal e output from the abnormality occurrence detecting means 1-6 is converted into a digital status display signal i by the A / D converting means 1-10, and the signal multiplexing means 1-9. It is multiplexed with the compressed image signal d output from the image compression unit 1-3 and output as a multiplexed signal j.
The multiplexed signal j is transmitted by the communication means 1-4 to the monitoring center 2c via the telephone line a.

The monitoring center 2c receives the multiplexed signal j transmitted from the monitored point 1e by the communication means 1-4 by the communication means 1-4, and then outputs it to the signal separation means 2-4 to output a compressed image. The signal d and the status display signal i are separated. The compressed image signal d is decompressed by the image decompression means 2-1 and returned to the digital image signal c at the time of transmission, and is output to the image signal conversion means 2-2. The digital image signal c is the video signal b for displaying the image of the monitored area by the image signal converting means 2-2.
Is converted to

The image synthesizing means 1-5b and the video signal b output from the image signal converting means 2-2 and the signal separating means 2-4.
The state display signal j output by c is input, and the imaging camera 1
-1 monitors the composite image signal g obtained by changing the color D of the abnormal portion with respect to the image of the monitored area captured by the monitor television 2-
3 and outputs the image (see FIG. 12).

The image displayed on the monitor television 2-3 is
If no abnormality is detected, the image captured by the imaging camera 1-1 is displayed as it is. However, if an abnormality occurs, the location of the abnormality in the image of the monitored area captured by the imaging camera 1-1 is displayed. Since the color is changed, it is possible to easily specify the location of the abnormality.

In the present embodiment, unlike the first to fourth embodiments, the video signal b by the analog signal and the generated image signal f are combined to generate the combined image signal g, whereas the signal processing is easy. In addition, the video signal b and the status display signal i including the abnormality occurrence information are multiplexed by a digital signal whose circuit configuration is simplified and transmitted to the monitoring center 2c, and the multiplexed signal j is processed on the monitoring center 2c side. Then, the composite image signal g is converted into an analog signal and output to the monitor television 2-3.

Therefore, according to the seventh embodiment, the multiplexed signal generated by digitally multiplexing the image signal and the abnormality detection signal at the monitored point is transmitted to the monitoring center, and the multiplexed signal is transmitted at the monitoring center. Is converted into a composite image signal for TV image display. As a result, normally, the number of monitored points is absolutely larger than the number of monitoring centers, but at the monitored points, the digital signal that simplifies the circuit configuration compared to image synthesis processing with analog signals is used. Since the image processing is performed, the circuit configuration of the monitored point is simplified. Therefore, in addition to the effects of the third embodiment, it is possible to bring about an economical saving effect of the entire apparatus regardless of the number of monitored points.

Embodiment 8. FIG. 8 is a configuration diagram showing an eighth embodiment of the present invention. In the figure, the same or corresponding parts as those in FIG. 5 are designated by the same reference numerals, and the description thereof will be omitted. The monitored point 1d in the fourth embodiment described above is a sensor 1-indicating a change in the state (physical change of temperature, pressure, etc.) of the monitored area or a device installed in the monitored area.
8, sensor output signal h output from the sensor 1-8
The image synthesizing process is performed with analog signals by including the image generating means 1-7b for generating the image of the graph showing the change of the state by plotting the signal level at every constant time.

The monitored point 1f in the present embodiment is
The video signal b output from the image pickup camera 1-1 is converted into a digital image signal c by the signal conversion means 1-2, and then compressed by the image compression means 1-3 to be converted into a compressed image signal d.

On the other hand, the sensor output signal h output from the sensor 1-8 is converted into a digital status display signal i by the A / D conversion means 1-10, and the signal multiplexing means 1-9.
The compressed image signal d output from the image compression unit 1-3 at
Are multiplexed and output as a multiplexed signal j. The multiplexed signal j is transmitted by the communication means 1-4 to the monitoring center 2d via the telephone line a.

The monitoring center 2d receives the multiplexed signal j transmitted from the monitored point 1f by the communication means 1-4 by the communication means 1-4, and then outputs it to the signal separation means 2-4 to output a compressed image. The signal d and the status display signal i are separated. The compressed image signal d is decompressed by the image decompression means 2-1 and returned to the digital image signal c at the time of transmission, and is output to the image signal conversion means 2-2. Then, the digital image signal c is converted by the image signal converting means 2-2 into a video signal b for displaying an image of the monitored area imaged by the imaging camera 1-1.

The image synthesizing means 1-5 is the image signal converting means 2
-2 output video signal b and image generating means 1-7c
The generated image signal f output by the
The composite image signal g obtained by superimposing the image of the graph E indicating the trend of the abnormality on the image of the monitored area captured by the image capturing camera 1-1 is output to the monitor television 2-3, and the composite image (see FIG. 13) is displayed. ) Is displayed.

In the monitor television 2-3, the monitor center 2
Either an image of the monitored area imaged by the imaging camera 1-1 or an image obtained by superimposing a graph E indicating a change in the state of the device to be monitored on the image of the monitored area according to the request from d. Is transmitted and displayed (see FIG. 13). Therefore, in the surveillance center 2d, the imaging camera 1
It is possible to monitor the state change of the device detected by the sensor 1-8 at the same time by the graph E while monitoring the image of the monitored area captured by -1.

In the present embodiment, unlike the first to fourth embodiments, the video signal b by the analog signal and the generated image signal f are combined to generate the combined image signal g, whereas the signal processing is easy. In addition, the video signal b and the status display signal i including the abnormality occurrence information are multiplexed by a digital signal whose circuit configuration is simplified and transmitted to the monitoring center 2a, and the multiplexed signal j is processed on the monitoring center 2a side. Then, the composite image signal g is converted into an analog signal and output to the monitor television 2-3.

Therefore, according to the eighth embodiment, the multiplexed signal generated by digitally multiplexing the image signal and the abnormality detection signal at the monitored point is transmitted to the monitoring center, and the multiplexed signal is transmitted at the monitoring center. Is converted into a composite image signal for TV image display. As a result, normally, the number of monitored points is absolutely larger than the number of monitoring centers, but at the monitored points, the digital signal that simplifies the circuit configuration compared to image synthesis processing with analog signals is used. Since the image processing is performed, the circuit configuration of the monitored point is simplified. Therefore, in addition to the effects of the fourth embodiment, it is possible to bring about an economical saving effect of the entire apparatus regardless of the number of monitored points.

Ninth Embodiment 9 is a block diagram showing a ninth embodiment of the present invention. In the figure, parts that are the same as or equivalent to those in FIG. The monitored point 1e in the fifth embodiment is the abnormality occurrence detecting means 1-6 for detecting the occurrence of the abnormality, and the image generating means 1 for displaying the occurrence of the abnormality with a symbol or a graphic.
-7, and an image synthesizing unit 1-5 that superimposes the image captured by the image capturing camera 1-1 on the image generated by the image generating unit 1-7, and performs image synthesizing processing using analog signals.

The monitored point 1e in the present embodiment is
The video signal b output from the image pickup camera 1-1 is converted into a digital image signal c by the signal conversion means 1-2, and then compressed by the image compression means 1-3 to be converted into a compressed image signal d.

On the other hand, the abnormality detection signal e output from the abnormality occurrence detecting means 1-6 is converted into a digital state display signal i by the A / D converting means 1-10, and the signal multiplexing means 1
At -9, it is multiplexed with the compressed image signal d outputted from the image compression means 1-3 and outputted as a multiplexed signal j. The multiplexed signal j is transmitted to the monitoring center 2e via the telephone line a by the communication means 1-4.

The monitoring center 2e receives the multiplexed signal j transmitted from the monitored point 1e at the communication means 1-4 at the communication means 1-4 and then outputs it to the signal separation means 2-4 to obtain a compressed image. The signal d and the status display signal i are separated. The compressed image signal d is decompressed by the image decompression means 2-1 and returned to the digital image signal c at the time of transmission, and is output to the image signal conversion means 2-2. Further, the digital image signal c is converted by the image signal converting means 2-2 into a video signal b for displaying an image of the monitored area imaged by the imaging camera 1-1. The state display signal i is converted by the image generating means 1-7c into the generated image signal f for displaying the character information F (see FIG. 14) indicating the content of the abnormality and output.

The image synthesizing means 1-5 is the image signal converting means 2
-2 output video signal b and image generating means 1-7c
And the generated image signal f output by
The monitor television 2-3 displays a composite image signal g obtained by superimposing character information E according to the content of the abnormality detected by the abnormality occurrence detection means 1-6 on the image of the monitored area captured by the image capturing camera 1-1. Output to a composite image (see Figure 14)
Is displayed.

The image displayed on the monitor television 2-3 is
When no abnormality is detected, the image of the monitored area captured by the imaging camera 1-1 is displayed as it is. However, when an abnormality occurs, the image of the monitored area is displayed with text information (see FIG. 14). ) Is displayed to indicate the occurrence of an abnormality, it is possible to provide more detailed abnormality information.

In the present embodiment, unlike the first to fourth embodiments, the video signal b by the analog signal and the generated image signal f are combined to generate the combined image signal g, whereas the signal processing is easy. In addition, the video signal b and the status display signal i including the abnormality occurrence information are multiplexed by a digital signal whose circuit configuration is simplified and transmitted to the monitoring center 2a, and the multiplexed signal j is processed on the monitoring center 2a side. Then, the composite image signal g is converted into an analog signal and output to the monitor television 2-3.

Therefore, according to the ninth embodiment, claim 5
In the present embodiment, instead of the symbol or figure that has displayed the occurrence of abnormality in the present embodiment, the occurrence of abnormality is displayed by character information. Therefore, in addition to the effect of the fifth embodiment, the occurrence of abnormality and the location of occurrence of abnormality are There is an effect that identification can be facilitated and more detailed abnormality occurrence information can be provided.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a first embodiment of the present invention.

FIG. 2 is a configuration diagram showing a second embodiment of the present invention.

FIG. 3 is a configuration diagram showing a third embodiment of the present invention.

FIG. 4 is a configuration diagram showing a fourth embodiment of the present invention.

FIG. 5 is a configuration diagram showing a fifth embodiment of the present invention.

FIG. 6 is a configuration diagram showing a sixth embodiment of the present invention.

FIG. 7 is a configuration diagram showing a seventh embodiment of the present invention.

FIG. 8 is a configuration diagram showing an eighth embodiment of the present invention.

FIG. 9 is a configuration diagram showing a ninth embodiment of the present invention.

FIG. 10 is a first embodiment and a fifth embodiment of the present invention.
FIG.

FIG. 11 is a second embodiment and a sixth embodiment of the present invention.
FIG.

FIG. 12 is a third embodiment and a seventh embodiment of the present invention.
FIG.

FIG. 13 is a fourth and eighth embodiment of the invention.
FIG.

FIG. 14 is a screen display example showing the ninth embodiment of the present invention.

FIG. 15 is a configuration diagram showing a conventional image monitoring device.

[Explanation of symbols]

1, 1a to 1f monitored points, 2, 2a to 2e monitoring center, 1-1 imaging camera, 1-2 signal conversion means,
1-3 image compression means, 1-4 communication means, 1-5, 1
-5a, 1-5b image synthesizing means, 1-6 abnormality occurrence detecting means, 1-7, 1-7a to 1-7f image generating means,
1-8 sensor, 1-9 signal multiplexing means, 1-10
A / D conversion means, 2-1 image expansion means, 2-2 image signal conversion means, 2-3 monitor television, 2-4 signal separation means.

Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI Technical indication location H04M 11/00 301 H04M 11/00 301 H04N 5/225 H04N 5/225 C 5/445 5/445 Z

Claims (9)

[Claims] 1. An imaging camera for picking up an image of a monitored area, an abnormality occurrence detecting means for detecting an occurrence of an abnormal situation in the monitored area, and an occurrence of an abnormal situation detected by the abnormality occurrence detecting means at a monitored location. Image generating means for generating an image to be displayed as a symbol or graphic; and image combining means for generating a composite image signal by superimposing the symbol or graphic generated by the image generating means on the image captured by the imaging camera. A signal converting means for digitally converting the composite image signal output from the image combining means, an image compressing means for compressing the digital image signal output from the signal converting means, and a compressed image output from the image compressing means A communication means for transmitting a signal to the monitoring center, wherein the information transmitted from the monitored point is input to the monitoring center. Communication means for receiving the information, image expansion means for expanding the compressed image signal output from the communication means, image signal conversion means for converting the digital image signal output by the image expansion means into a composite image signal, A monitor television for inputting the composite image signal and displaying an image is provided, and an abnormal situation occurring at the monitored point is displayed by a symbol or figure superimposed on the monitored image displayed on the monitor television. An image monitoring device characterized by the above. 2. An image pickup camera for picking up an image of a monitored area, an abnormality occurrence detecting means for detecting an occurrence of an abnormal situation, and an occurrence of an abnormal situation detected by the abnormality occurrence detecting means at the monitored area. An image generation unit that generates an image to be displayed as a mark at a location where an abnormality has occurred in the image captured by, and a mark that indicates the location of the abnormal situation that has been generated by the image generation unit in a part of the image captured by the imaging camera. Image superimposing means for generating a composite image signal, a signal converting means for digitally converting the composite image signal output from the image combining means, and a digital image signal output from the signal converting means. Image compression means and a communication means for transmitting the compressed image signal output from the image compression means to the monitoring center, and transmitting from the monitored point. Communication means for receiving the transmitted information, image decompression means for decompressing the compressed image signal output from the communication means, and digital image output by the image decompression means An image signal converting means for converting the signal into a composite image signal, and a monitor television for inputting the composite image signal and displaying an image are provided, and the occurrence and location of the abnormal situation occurring at the monitored point are displayed on the monitor television. An image monitoring apparatus characterized by displaying a superimposed image on a displayed monitored image. 3. An image pickup camera for picking up an image of a monitored area at a monitored point, an abnormality occurrence detecting means for detecting an occurrence of an abnormal situation, and an abnormal situation detected by the abnormality occurrence detecting means for the imaging camera. An image synthesizing unit that changes a color of a part or the whole of a captured image to generate a synthetic image signal, a signal converting unit that digitally converts the synthetic image signal output from the image synthesizing unit, and the signal converting unit. An image compression means for compressing the output digital image signal, and a communication means for transmitting the compressed image signal output from the image compression means to a monitoring center are provided, and the information transmitted from the monitored point is input. At the monitoring center, communication means for receiving the transmitted information, image decompression means for decompressing the compressed image signal output from the communication means, and this image The image signal converting means for converting the digital image signal output by the stretching means into a composite image signal, and a monitor television for displaying the image by inputting the composite image signal, and the occurrence of an abnormal situation occurring at the monitored point or An image monitoring apparatus characterized in that the occurrence and location of an abnormal situation are displayed by a change in color of all or part of a monitored image displayed on a monitor television. 4. An imaging camera for imaging the monitored area, a sensor for outputting a change in the state of the monitored object, and a signal output from this sensor are input to the monitored point, and a graph showing the change is displayed. An image generating unit that generates an image, an image synthesizing unit that superimposes an image of the graph generated by the image generating unit on a part of the image captured by the image capturing camera to generate a synthetic image signal, and the image synthesizing unit. Signal converting means for digitally converting the composite image signal output from the means, image compressing means for compressing the digital image signal output from the signal converting means, and the compressed image signal output from the image compressing means A communication means for transmitting the information to the monitoring center for inputting the information transmitted from the monitored point, and a communication means for receiving the transmitted information, An image decompressing unit for decompressing the compressed image signal output from the communication unit, an image signal converting unit for converting the digital image signal output by the image decompressing unit into a composite image signal, and an image by inputting the composite image signal. And a monitor TV for displaying the change in the state of the monitored object occurring at the monitored point, which is displayed as a graph superimposed on the monitored image displayed on the monitor TV. Monitoring equipment. 5. An image pickup camera for picking up an image of a monitored area, a signal conversion unit for converting a video signal output from the image pickup camera into a digital image signal, and a digital signal output from the signal conversion unit at a monitored point. An image compression unit for compressing an image signal, an abnormality occurrence detection unit for detecting the occurrence of an abnormal situation, an A / D conversion unit for converting an analog signal output by the abnormality occurrence detection unit into a status display signal, and the image compression unit. The compressed image signal output from the means and the A
Input the status display signal output from the / D conversion means,
A signal multiplexing means for multiplexing signals, and a communication means for transmitting the multiplexed signal output by the signal multiplexing means to a monitoring center, wherein the monitoring center receives information transmitted from the monitored point. Communication means for performing, and inputting the multiplexed signal output from this communication means,
A signal separating means for separating the compressed image signal and a status display signal indicating occurrence of an abnormal situation, an image expanding means for expanding the compressed image signal output by the signal separating means, and a digital image output by the image expanding means. An image signal converting means for inputting a signal and converting it into a video signal, and a status display signal indicating the occurrence of an abnormal situation output by the signal separating means are inputted and a generated image signal of a symbol or a figure indicating the occurrence of an abnormal situation is generated. Image generating means for generating, image synthesizing means for inputting the image signals output from the image signal converting means and the image generating means, and generating a synthetic image signal, and a synthetic image output from the image synthesizing means A monitor television for inputting a signal and displaying an image is provided, and in the image of the monitored point displayed on the monitor television, a symbol indicating occurrence of an abnormal situation or Image monitoring apparatus and displaying the shape and superimposed. 6. An image pickup camera for picking up an image of a monitored area, a signal conversion unit for converting a video signal output from the image pickup camera into a digital image signal, and a digital signal output from the signal conversion unit at a monitored point. An image compression unit for compressing an image signal, an abnormality occurrence detection unit for detecting the occurrence of an abnormal situation, an A / D conversion unit for converting an analog signal output by the abnormality occurrence detection unit into a status display signal, and the image compression unit. The compressed image signal output from the means and the A
Input the status display signal output from the / D conversion means,
A signal multiplexing means for multiplexing signals, and a communication means for transmitting the multiplexed signal output by the signal multiplexing means to a monitoring center, wherein the monitoring center receives information transmitted from the monitored point. Communication means for performing, and inputting the multiplexed signal output from this communication means,
A signal separating means for separating the compressed image signal and a status display signal indicating occurrence of an abnormal situation, an image expanding means for expanding the compressed image signal output by the signal separating means, and a digital image output by the image expanding means. An image signal converting means for inputting a signal and converting it into a video signal, and a status display signal indicating the occurrence of an abnormal situation output by the signal separating means are inputted and a generated image signal of a symbol or a figure indicating the occurrence of an abnormal situation is generated. Image generating means for generating, image synthesizing means for inputting the image signals output from the image signal converting means and the image generating means, and generating a synthetic image signal, and a synthetic image output from the image synthesizing means A monitor television for inputting a signal and displaying an image is provided, and a mark indicating an abnormal place is displayed on the image of the monitored point displayed on the monitor television. Image monitoring apparatus characterized by Inpozu to display. 7. An image pickup camera for picking up an image of a monitored area, a signal conversion unit for converting a video signal output from the image pickup camera into a digital image signal, and a digital signal output from the signal conversion unit at a monitored point. An image compression unit for compressing an image signal, an abnormality occurrence detection unit for detecting the occurrence of an abnormal situation, an A / D conversion unit for converting an analog signal output by the abnormality occurrence detection unit into a status display signal, and the image compression unit. The compressed image signal output from the means and the A
Input the status display signal output from the / D conversion means,
A signal multiplexing means for multiplexing signals, and a communication means for transmitting the multiplexed signal output by the signal multiplexing means to a monitoring center, wherein the monitoring center receives information transmitted from the monitored point. Communication means for performing, and inputting the multiplexed signal output from this communication means,
A signal separating means for separating the compressed image signal and a status display signal indicating occurrence of an abnormal situation, an image expanding means for expanding the compressed image signal output by the signal separating means, and a digital image output by the image expanding means. An image signal converting means for inputting a signal and converting it into a video signal, and a video signal output from the image signal converting means and a status display signal indicating the occurrence of an abnormal situation output by the signal separating means are respectively input, An image synthesizing unit that generates a synthetic image signal that indicates the occurrence of an abnormal situation or the occurrence and location of the abnormal situation at the monitored point by a change in color of the entire image or a part of the image, and an output from the image synthesizing unit. And a monitor television for displaying the image, and the whole or part of the image of the monitored point displayed on the monitor television is displayed in color. By indicating in the change, the image monitoring apparatus characterized by indicating the occurrence point and generation of generation or abnormal situation of abnormality. 8. An image pickup camera for picking up an image of a monitored point, a signal conversion unit for converting a video signal output from the image pickup camera into a digital image signal, and the signal conversion unit output at the monitored point. An image compression unit for compressing a digital image signal, a sensor for outputting a change in the state of the monitored object, an A / D conversion unit for converting an analog signal output by the sensor into a state display signal, and the image compression unit. The compressed image signal to be output and the A
Input the status display signal output from the / D conversion means,
A signal multiplexing means for multiplexing signals, and a communication means for transmitting the multiplexed signal output by the signal multiplexing means to a monitoring center, wherein the monitoring center receives information transmitted from the monitored point. And a signal separating means for inputting the multiplexed signal at the monitored point outputted from the communicating means to separate into a compressed image signal and a status display signal, and a compressed image outputted by the signal separating means. Image decompression means for inputting a signal and decompressing an image, image signal conversion means for converting a digital image signal output by the image decompression means into a video signal, and a change in the state of the monitored object output by the signal separation means. Is input, and the image signals output from the image signal conversion unit and the image generation unit are input. Then, an image synthesizing unit for generating a synthetic image signal and a monitor television for displaying the image by inputting the synthetic image signal output from the image synthesizing unit are provided, and the image captured by the image pickup camera at the monitored point is displayed. An image monitoring device characterized by superimposing and displaying a graph showing a change in the state of a monitored object. 9. An image pickup camera for picking up an image of a monitored area, a signal conversion unit for converting a video signal output from the image pickup camera into a digital image signal, and a digital signal output from the signal conversion unit at a monitored point. An image compression unit for compressing an image signal, an abnormality occurrence detection unit for detecting the occurrence of an abnormal situation, an A / D conversion unit for converting an analog signal output by the abnormality occurrence detection unit into a status display signal, and the image compression unit. A digital image signal output from the means and a status display signal output from the A / D conversion means, and a signal multiplexing means for multiplexing the signals; and a multiplexed signal output by the signal multiplexing means. And a communication means for performing communication control for transmitting a digital signal to a monitoring center, wherein the monitoring center controls communication of information transmitted from the monitored point. Communication means, signal separation means for inputting the multiplexed digital signal output from the communication means, and separating the digital image signal and status display signal, and the digital image signal output by the signal separation means for video. An image signal converting means for converting into an image signal, an image generating means for inputting a status display signal indicating the occurrence of an abnormal situation output by the signal separating means, and generating an image showing the occurrence of an abnormal situation as character information, Image signals output from the image signal converting means and the image synthesizing means are input respectively, and an image synthesizing means for generating a synthetic image signal and a synthetic image signal output from the image synthesizing means are input to display an image. A monitor television set that displays text information indicating that an abnormal situation has occurred in a part of the image of the monitored point displayed on the monitor television. Image monitoring apparatus and displaying in's.