JP3043839B2 - Monitoring display method of disaster prevention monitoring system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disaster prevention monitoring system provided with a terminal device such as a gas leak detector, a fire detector, a receiver and the like, and more particularly, to a monitor display device for graphically displaying the status of a monitored area. Also, the present invention relates to a monitoring display method of a disaster prevention monitoring system that performs disaster prevention monitoring by reproducing an image obtained by imaging by a monitoring camera.

[0002]

2. Description of the Related Art Conventionally, in such a disaster prevention monitoring system, terminal equipment such as a gas leak detector, a fire detector, and a receiver are installed in a predetermined monitoring area and provided in a central monitoring room. A centralized monitoring device receives detection signals from these terminal devices by a transmission method such as a so-called polling method, and graphically displays the presence or absence of an abnormality on a monitoring display device such as a CRT display for each monitoring area. This allowed for centralized visual monitoring.

Further, a video surveillance camera which can be operated by a remote control of a surveillance person in a central surveillance room is installed in an appropriate surveillance area, and an image of the surveillance area is directly displayed on a CRT.
By reproducing it on a display or the like, reliable monitoring can be performed. FIGS. 7 and 8 show a display method of the display device provided in such a conventional disaster prevention monitoring system, with a sketch of a monitoring area designated by a monitoring person in a central monitoring room or the like as a background. A graphic is displayed on the display screen of the display (not shown in FIG. 7), and identification codes S01, S02, and S01, S02, which are attached in advance to terminal devices such as various sensors installed in the monitoring area.
SO3, SO4 to S31, S32, S33, S36, etc., and the identification code ITV indicating the video surveillance camera are displayed in an overlapping manner corresponding to the installation location. Therefore, by simply looking at the display screen of the display, the display is made so that the structure of the monitored area and the type and installation location of the terminal device can be intuitively recognized.

If none of the terminal devices detects an abnormality, as shown in FIG. 7, a state in which the background sketch and the identification code of the terminal device or the like are simply displayed continues. On the other hand, when any of the terminal devices, for example, the terminal devices indicated by the identification codes S01 and S32 in FIG. 8 detects an abnormality and issues an alarm, the surroundings of those identification codes are surrounded by a frame, and furthermore, By coloring the inside of the frame with red or the like indicating the occurrence of an abnormality, the display content can be changed so that the location of the abnormality and the type of the abnormality can be intuitively confirmed.

Further, when such an abnormality occurs, a video signal is automatically received from a video surveillance camera installed in the area where the abnormality has occurred, and a window display section as shown by the hatched area in FIG. 8 is set. By playing back the video captured by the video surveillance camera on this window display,
Provide clearer information on abnormal situations in the monitored area.

[0006]

However, in such a conventional monitoring display method of a disaster prevention monitoring system,
As shown in FIG. 8, when images from the video surveillance cameras are displayed on a plurality of window displays in response to detection of an abnormality by a plurality of terminal devices, a reproduced image of the window display unit includes There was a problem that the correspondence with the monitoring area where the problem occurred could not be confirmed intuitively, and prompt response was not possible.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and is intended to display useful surveillance information of a terminal device or the like disposed in a surveillance area and reproduce an image from a video surveillance camera. An object of the present invention is to provide a monitoring display method of a disaster prevention monitoring system that has good visibility and is easy to use by efficiently displaying a window on a screen of a display device.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a display unit provided in a disaster prevention monitoring system, which displays a monitoring area and a terminal device installed in the monitoring area. In addition to displaying the position and the monitoring status graphically, during the graphic display, the monitoring and display method of the disaster prevention monitoring system having the function of simultaneously reproducing the image captured by the video surveillance camera and displaying the window and detecting an abnormality was detected. The display of the terminal device and the window display are colored and displayed in a color set in a predetermined relationship.

[0009] In addition, a plurality of colored displays having different colors depending on the detection level of the terminal device which has detected the abnormality are displayed in association with the display of the terminal device and the window display. Further, the coloring display is performed on the outer frame portion of the window display.

[0010]

According to the monitoring and displaying method of the disaster prevention monitoring system of the present invention, a coloring display is added to a monitoring area where an abnormality has occurred, and a window display section for reproducing and displaying an image captured by a video monitoring camera. Since the colored displays to be performed are set in a predetermined correspondence relationship, it is possible to intuitively confirm only by looking at these colored displays, and it is possible to quickly and surely perform a response process when an abnormality occurs. The effect is obtained.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. First, the configuration of the disaster prevention monitoring system will be described with reference to FIG. In FIG. 1, reference numeral 3 denotes a receiver, which receives an alarm signal transmitted from a fire detector, a gas leak detector, a security device, or the like connected to a plurality of lines extending to a plurality of monitoring systems.

Reference numeral 4 denotes a display control unit of the disaster prevention monitoring device. The receiver 3 and other detectors and receivers 5 provided in other monitoring systems are connected to an input unit (input interface) 6. . More specifically, the polling transmission system is applied to the disaster prevention monitoring system mainly composed of the receiver 3 by a so-called R-type system configuration, and the detector or the receiver 5 is directly connected to the input unit 6. The so-called P-type system configuration is applied to the system connected to.

When each of the terminal devices of these systems detects an abnormality and sends out an alarm signal, the display control unit 4 receives the signal via the input unit 6. The configuration of the display control unit 4 will be described. Reference numeral 7 denotes a central control unit which performs signal processing on an alarm signal from the input unit 6 and performs control for display display. Processing is performed.

Reference numeral 8 denotes a command input unit for inputting various commands for display to the central control unit 7, for example,
It consists of input devices such as a keyboard, light pen and mouse. Further, the central control unit 7 includes an image data forming circuit 9, an image memory 10, a video signal generating circuit 11, and a CR.
By controlling the operation of the display unit composed of the T display 12, the outline of the monitoring area and the position of the terminal device, which will be described later, and the image reproduction of the image by the video surveillance camera can be controlled by C.
It is displayed on the RT display 12.

Reference numeral 13 denotes a video surveillance camera (one of which is shown as a representative in the figure) provided for each appropriate surveillance area. / D converter 14 converts the pixel data into digital pixel data in synchronization with a predetermined point-sequential scanning timing.
A frame memory 15 capable of storing pixel data corresponding to one frame image for each color of (red), G (green), and B (blue) and having a storage capacity corresponding to the number of all video surveillance cameras. Store.

When a still image is picked up, the image pick-up operation is ended only by storing pixel data corresponding to one frame image in the frame memory 15 once. The operation of sequentially rewriting data is performed in synchronization with. 16 is a read-only memory (ROM)
, Which is a reference information file comprising image data representing a sketch of each monitored area (for example, a sketch of each floor of a high-rise building, etc.), and the type and installation position of each terminal device and the installation position of the video surveillance camera in the sketch. Data is stored in advance.

17 is a random access memory (RAM)
And sequentially stores data such as the content of the alarm signal transferred from the receivers 3 and 5 and the alarm location. Then, these frame memories 1
5. The reference information file 16 and the history information file 17 are mutually connected to the central control unit 7 and the image data forming circuit 9 via a data bus, and transfer the stored data according to a control signal from the central control unit 7. It is made to do.

The image memory 10 is constituted by a RAM having a storage capacity equivalent to one frame image, and relates to a sketch of a monitoring area read from the reference information file 16 by the image data forming circuit 9, a terminal device, and a video monitoring camera. Each pixel data of one frame image is formed from the display data, and each pixel data of this one frame image is stored. Then, the video signal generation circuit 11 reads out the pixel data of the image memory 10 in synchronization with the scanning cycle of the standard television system such as the NTSC system, and converts the pixel data into the scanning period of the standard television system. By generating the synchronizing signal SYN and the respective color signals R, G, B in accordance with the time series and supplying them to the CRT display 12 in time series, the CRT
The display 12 displays a graphic.

In addition, not only the data read from the reference information file 16 but also the data read from the history information file 17 and the frame memory 15 are displayed on the CRT display 12 by performing the same processing. However, the image memory 10 and the video signal generation circuit 1
Since data is read out by DMA (direct memory access) transfer between the two, apparently, the image data forming circuit 9 automatically writes data to an appropriate storage area of the image memory 10 and automatically generates a video signal generating circuit. 11 performs processing for image reproduction.

Next, the operation of the display control unit 4 having such a configuration will be described. The processing described below is performed under the control of the central control unit 7. First, when the power is turned on or the like and the operation is started, a predetermined initialization operation is performed in step 100, and a monitor area sketch and a sketch are displayed on the display screen of the CRT display 12, as shown in FIG. The identification numbers ((0) to (3), etc.) for identifying the monitoring area, the terminal devices (S01 to S36, etc.) and the identification display (ITV) of the video surveillance camera are displayed according to the installation position on the floor plan. .

That is, the central control unit 7 reads out from the reference information file 16 the data of the sketch drawing corresponding to the monitoring area set by the command inputting unit 8 and the data on the position and type of the terminal equipment arranged in the monitoring area. Then, the image data is formed and transferred to the image data forming circuit 9. The image data forming circuit 16 forms pixel data of one frame image as if the identification code indicating the position of the terminal device and the video surveillance camera was added to the background sketch. Then, the image data is written into the image memory 10, and the video signal generation circuit 11 automatically reads out these pixel data by DMA transfer and supplies them to the CRT display 12, so that the graphic display of the monitored area is performed.

Next, in step 110, the central control unit 7 processes the input signal from the input unit 6. That is, the process of step 110 is performed in the subroutine format shown in FIG. 3. First, in step 200, it is determined whether or not the input unit 6 has received an input signal indicating abnormality detection from the receivers 3, 5, and If there is no signal, go directly to step 1
The processing shifts to 20.

On the other hand, if there is an input signal, the flow shifts to step 210 to determine which terminal device the signal has been transferred from, and creates abnormality detection data relating to the installation position and type of the terminal device. In step 220, the abnormality detection data is stored in the history information file 17. still,
The degree of risk of abnormality is determined based on predetermined conditions in accordance with the level of the input signal, the type of terminal device, and the installation location in the monitoring area, and data of the degree of risk is also stored.

Then, the image data forming circuit 9 uses the identification code of the terminal device which has detected the abnormality, for example, S01 or S in FIG.
14 is surrounded by a frame of a color representing the degree of risk, and data for coloring and displaying the inside of the frame with the same color is stored in the image memory 10.
To memorize. The color corresponding to the risk is predetermined, and for example, the color with the highest risk is red, the next risk is orange, and the next risk is yellow. Further, the level of a signal from a terminal device such as an analog sensor is indicated by a numerical value at a position adjacent to the identification code.

In step 120, processing corresponding to the processing command specified by the command input unit 8 is performed.
Processing is performed according to a subroutine shown in FIG. First, it is determined in step 300 whether or not a command has been input. If no command has been input, step 1 is directly performed.
The processing shifts to 30. If the guidance display command has been input, it is determined in step 310, and in step 320, the content to be processed is determined. For example, the guidance display command instructs the CRT display 12 to simultaneously display a guidance item on the CRT display 12 when a terminal device installed in a certain monitoring area has detected an abnormality, and various other operations. Since it is possible to designate a plurality of items such as instructing the guidance display at the same time, these instructions are determined and a process according to the instructions is performed.

Next, in step 330, an area for displaying guidance is set on the display screen of the CRT display 12. That is, by referring to the data stored in the history information file 17 by the input signal processing in the above step 110, the display position in the CRT display 12 of the terminal device which has detected the abnormality is determined, and the area other than the display position is determined. Let the coordinates of the four corners be the coordinates of the four corners of the window display.

Next, at step 340, guidance data to be displayed on the window display section is created. For example, when a command for displaying guidance regarding a terminal device detecting an abnormality is input, processing such as reading guidance data relating to a processing item corresponding to the abnormality from the reference information file 16 is performed. As described above, the processing of steps 320 to 340 is performed by the central control unit 7 and the image data forming circuit 9, and the image data in which the guidance data is written in the set window display unit is stored in the image memory 10. As a result, the video signal generation circuit 11 reads out pixel data from the image memory 10 by DMA transfer synchronized with a predetermined scanning timing such as the NTSC system and transfers the pixel data to the CRT display 12, so that a graphic display as shown in FIG. Becomes

When it is determined in step 350 that an ITV display command for reproducing an image captured by the video surveillance camera 13 on the window display unit has been input, first, in step 360, the content to be processed is determined. For example, if a terminal device installed in a monitoring area detects an abnormality, and a command is input to display an image from a video monitoring camera installed in the monitoring area, the video monitoring camera Is performed.

Next, in step 370, an area for reproducing an image is set on the display screen of the CRT display 12. That is, by referring to the data stored in the history information file 17 by the input signal processing of step 110, the CRT
The display position in the display 12 is determined, and the coordinates of the four corners of the area excluding the display position are set as the coordinates of the four corners of the window display unit.

Next, in step 380, image data to be reproduced is created on the window display unit. That is, pixel data corresponding to one frame image captured by the designated video surveillance camera 13 and stored in the frame memory 15 is read out from the frame memory 15 to the image data forming circuit 9, and the range of the set window display unit is set. And stored in the image memory 10.

At this time, the central control unit 7 refers to the history information file 17 for the position, type, and danger of the terminal device that has detected the abnormality in the designated monitoring area where the video monitoring camera 13 is installed. And the terminal device set to the highest risk in the monitoring area is specified. Then, a predetermined color corresponding to the specified degree of danger of the terminal device is determined, and color data for coloring and displaying the periphery of the window display section with the color is simultaneously stored in the image memory 1.
0 is stored. Further, the data of the identification number of the monitoring area is also stored in the image memory 10, and the process proceeds to step 130.

As described above, the processing of steps 360 to 380 is performed by the central control unit 7 and the image data forming circuit 9, and the image data in a state where the reproduced image data is written in the set window display unit is stored in the image memory 10. As a result, the video signal generation circuit 11
The pixel data is read out by the DMA transfer synchronized with a predetermined scanning timing such as the SC method and the CRT display 1
2, the graphic display as shown in FIG. 6 is performed.

FIG. 6 shows a case where it is designated to display images by a video surveillance camera installed in the monitoring area (0) and a video surveillance camera installed in the monitoring area (1). The image (hatched portion) of the video surveillance camera in the monitoring area (0) is displayed on the window display section 2a in the frame of the same color as the coloring given to the identification code S01, and is the same as the coloring given to the identification code S14. A case is shown in which an image (hatched portion) of the video surveillance camera in the surveillance area (1) is displayed on the window display section 2b in the color frame.

Although not described in this embodiment, if a command other than the guidance display and the ITV display is input in the flowchart of FIG. 4, in step 390, processing corresponding to the command is performed.
In step 130, when another monitoring area is designated from the command input unit 8, the display is changed to a new monitoring area. This processing is realized by performing the same processing as in step 100 for the designated monitoring area.

In step 140, the process is continued until an instruction to end monitoring such as turning off the power is detected. As described above, in this embodiment, the colored display having a plurality of different colors according to the detection level of the terminal device that has detected the abnormality is performed in association with the display of the terminal device and the outer frame portion of the window display. In addition, it is possible to intuitively check the images displayed on a plurality of windows together with the position of the occurrence of the abnormality, thereby improving the visibility and facilitating the monitoring work, and further allowing the observer to take a quick response to the occurrence of the abnormality. Can be.

When the observer specifies a still image display from the command input unit 8, a still image of one frame image is captured, and when an instruction to capture a moving image is issued, the moving image is synchronized with a predetermined scanning cycle. An imaging operation may be performed. or,
In this embodiment, a method has been described in which the video from the video surveillance camera is displayed in a window when instructed by a command. However, the present invention is not limited to this. A video surveillance camera installed in the area captures an image, and a reproduced image may be displayed in a window along with a colored display corresponding to the degree of risk of the terminal device in an appropriate display area of the CRT display.

The case where a colored frame is displayed on the window display section has been described. However, the present invention is not limited to such a frame. A method for performing any kind of colored display is included in the present invention.

[0038]

As described above, according to the present invention, the display unit provided in the disaster prevention monitoring system displays the display of the monitoring area and the position and monitoring status of the terminal equipment installed in the monitoring area. In the monitoring display method of the disaster prevention monitoring system having a function of displaying and displaying a window by simultaneously displaying an image captured by a video monitoring camera during the graphic display while displaying the graphic, the display of the terminal device which has detected an abnormality and the window display Are displayed in a color set in a predetermined relationship, the status of the abnormality can be intuitively confirmed just by looking at these colored displays, and the processing for responding to the occurrence of the abnormality can be performed quickly and reliably. And the like.

[Brief description of the drawings]

FIG. 1 is a system block diagram illustrating a configuration of a disaster prevention monitoring system according to an embodiment.

FIG. 2 is a flowchart illustrating an operation of a display control unit.

FIG. 3 is a flowchart illustrating an input signal processing operation of FIG. 2;

FIG. 4 is a flowchart showing a command processing operation of FIG. 2;

FIG. 5 is an explanatory diagram illustrating a display operation example according to the embodiment.

FIG. 6 is another explanatory diagram showing a display operation example of the embodiment.

FIG. 7 is an explanatory diagram showing a display operation example according to a conventional monitoring display method.

FIG. 8 is another explanatory diagram showing a display operation example according to a conventional monitoring display method.

[Explanation of symbols]

 4; display control unit 6; input unit 7; central control unit 8; command input unit 9; image data forming circuit 10; image memory 11; video signal generating circuit 12; CRT display 13; Container 15; frame memory 16; reference information file 17; history information file

Continuation of the front page (56) References JP-A-55-159479 (JP, A) JP-A-1-251199 (JP, A) JP-A-3-36690 (JP, A) JP-A-3-45596 (JP) , U) (58) Field surveyed (Int. Cl. ⁷ , DB name) G08B 23/00 510

Claims (3)

(57) [Claims] 1. A display unit provided in a disaster prevention monitoring system displays a display of a monitoring area, a position of a terminal device installed in the monitoring area and a monitoring state, and a video during the graphic display. In a monitoring display method of a disaster prevention monitoring system having a function of simultaneously playing back an image captured by a monitoring camera and displaying a window, a display set to a predetermined relationship between the display of the terminal device that has detected an abnormality and the window display is provided. A monitoring display method for a disaster prevention monitoring system, characterized in that the display is colored with a color. 2. A display provided in the disaster prevention monitoring system displays a display of a monitoring area, a graphic display of a position and a monitoring status of a terminal device installed in the monitoring area, and a video during the graphic display. A monitoring display method of a disaster prevention monitoring system having a function of simultaneously playing back images captured by a monitoring camera and displaying a window, wherein differently colored displays of a plurality of levels are provided in accordance with an abnormality detection level of the terminal device which has detected an abnormality. And displaying the display of the terminal device and the window display in association with each other. 3. The monitoring display method for a disaster prevention monitoring system according to claim 1, wherein the coloring display in the window display is performed on an outer frame portion of the window display unit.