JP2003046991A - Monitoring system and image processing method for monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a highly reliable monitoring system capable of grasping a river situation at respective monitoring points including a water level easily and accurately with an economically advantageous configuration utilizing existing system constituents, and an image processing method for the monitoring system. SOLUTION: A machine side apparatus 10 is provided at a point to be monitored (site) together with a swiveling type space monitoring camera 50 and a monitoring camera 60 fixed on a water measuring plate. The apparatus 10 adds character information generated on the basis of an image of a water measuring plate 30 photographed by the camera 60 to the images of the points to be monitored which are photographed by the camera 50, and transmits the images to a monitoring station 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring system suitable for managing rivers and the like.

The present invention also relates to an image processing method of a surveillance system in which a surveillance image of a surveillance target point photographed by a turning type space surveillance camera is transmitted to a surveillance station and the surveillance station remotely monitors the surveillance target point. .

[0003]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for encoding a camera image and performing image processing in a camera used for river management and delivering the encoded image to an upper station via a network.

[0004]

2. Description of the Related Art Conventionally, for river management, a surveillance system having a turning type space surveillance camera at a surveillance point has been used. This type of monitoring system connects the turning station type space monitoring cameras and machine side devices provided at each of a plurality of monitoring target points and the monitoring station via a network using an optical cable or a metal cable to monitor the monitoring station. At, the image captured by the monitoring camera at each monitoring target point is captured and displayed on the monitor to remotely monitor the river condition at each monitoring target point.

However, the conventional monitoring system of this type has a problem that it is not possible to grasp a detailed situation such as a concrete water level, although a rough situation of the river can be grasped. In addition, since the shooting direction of the swivel type space monitoring camera changes depending on time, there is a problem that it is not possible to reliably grasp the flooding situation of the river without overlooking.

In order to solve these problems, in addition to the above-mentioned monitoring system, a system for sequentially measuring the water level data of the river at each observation point and collecting the measurement data at each observation point on the monitoring station side is newly added. Therefore, there is a problem in that the construction of the entire monitoring system becomes complicated and the economical burden is large.

Further, in the conventional surveillance system of this type, an image taken by a surveillance camera is transmitted to a surveillance station by a machine side device, and the surveillance station converts the received images of each of a plurality of surveillance target points. , The fixed station name unique to each monitored point was added to the characters and displayed on the monitor. Therefore, the monitoring station requires a complicated and expensive image processing mechanism for adding a fixed station name unique to the monitoring target point to each image sent from all the machine side devices, When the name was changed, there was a problem that the change could not be easily and flexibly dealt with.

[0008]

As described above, the conventional monitoring system has a problem that it is not possible to grasp a detailed situation such as a concrete water level, although it is possible to grasp a rough situation of the river. In order to solve it, apart from the above monitoring system, it is necessary to construct a new system that sequentially measures the water level data of the river at each observation point and collects the measurement data at each observation point on the monitoring station side. Therefore, there has been a problem that the configuration of the entire monitoring system becomes complicated and the economical burden is large. Also, the monitoring station needs a complicated and expensive image processing mechanism for adding the fixed station name of the monitoring target point to each image sent from all the machine side devices, and the name has changed. At that time, there was a problem that the change could not be easily and flexibly dealt with.

The present invention has been made in view of the above circumstances,
An economically advantageous configuration that effectively utilizes existing system components, and a highly reliable monitoring system that can easily and accurately grasp the status of the monitoring target including detailed observation information, and an image processing method for the monitoring system. The purpose is to provide.

In addition, the present invention is an economically advantageous structure that effectively utilizes the existing system components, and is a highly reliable monitor that can easily and accurately grasp the condition of the river at each monitoring point, including the water level. An object of the present invention is to provide an image processing method for a system and a surveillance system.

[0011]

SUMMARY OF THE INVENTION The present invention is a surveillance system in which a turning type space monitoring camera and a machine side device are installed at a plurality of monitoring target points, and detailed observation information is provided to the machine side device. It is characterized by having a function to add characters such as point information.

To give a concrete example for river monitoring, a fixed camera and a processing means for acquiring detailed observation information based on the camera image in the machine side device, and an image taken by the space monitoring camera. With the processing means for adding characters, the fixed water camera attached to the bridge girder, etc. is photographed by the fixed camera, the change of the water level is judged from the fixed image, and the character information according to the judgment result is displayed on the space monitoring camera. It is characterized by being added to the captured image of and transmitted to the monitoring station.

That is, according to the present invention, a turning type space monitoring camera and a machine side device provided at each of a plurality of monitoring target points are connected to the machine side device via a transmission line, and the monitoring camera is used. In a monitoring system consisting of a monitoring station that remotely monitors a monitoring target point by a captured image, a fixed camera for monitoring that fixedly monitors a specific monitoring target at the monitoring target point in the machine side device, The processing means for grasping the state of the specific monitoring target from the image taken by the fixed camera, the character generating means for generating the character information according to the content grasped by the processing means, and the character information generated by the character generating means for the space An image of the monitoring target point is obtained from the image captured by the space monitoring camera by the machine-side device, which is provided with a character adding means for adding to the image of the monitoring target point captured by the monitoring camera. It adds the character information, wherein the transmitting to the monitoring station.

Further, according to the present invention, a turning type space monitoring camera and a machine side device provided at each of a plurality of monitoring target points for monitoring a river are connected to these machine side devices via a transmission line. In a monitoring system consisting of a monitoring station that remotely monitors the monitoring target point by the image taken by the monitoring camera, the machine side device fixedly monitors the water plate installed in the river at the monitoring target point. A fixed camera for monitoring, a determination means for determining the water level of the river from the image captured by the fixed camera, a character generation means for generating character information based on the water level determined by the determination means, and the character generation And a character adding unit for adding the character information generated by the means to the image of the monitoring target point captured by the space monitoring camera, and the monitoring target point captured by the space monitoring camera by the machine-side device. The image by adding the character information, wherein the transmitting to the monitoring station.

Further, according to the present invention, a turning type space monitoring camera and a machine side device provided at each of a plurality of monitoring target points for monitoring a river are connected to these machine side devices via a transmission line. In a monitoring system consisting of a monitoring station that remotely monitors the monitoring target point by the image taken by the monitoring camera, the machine side device fixedly monitors the water plate installed in the river at the monitoring target point. A fixed camera for monitoring, and a judging means for judging that the water level of the river has reached the warning water level from the image taken by the fixed camera, and the warning water level when it is judged that the warning water level has been reached by the judging means. And a character adding means for adding the character message generated by the character generating means to the image of the monitoring target point photographed by the space monitoring camera. When the water level of the river at the monitoring point reaches the warning water level, the character message is added to the image of the monitoring point taken by the space monitoring camera by the machine side device. It is characterized in that it is transmitted to the monitoring station.

Further, according to the present invention, a revolving type space monitoring camera and a machine side device provided at each of a plurality of monitoring target points for monitoring a river, and these machine side devices are connected via a transmission line. In a monitoring system consisting of a monitoring station that remotely monitors the monitoring target point by the image taken by the monitoring camera, the machine side device fixedly monitors the water plate installed in the river at the monitoring target point. The monitoring fixed camera, processing means for calculating the water level difference between the current water level and the dangerous water level from the image captured by the fixed camera, and determining that the water level of the river has reached the warning water level from the image captured by the fixed camera When the judgment means determines that the warning water level has been reached by the judgment means, a character message indicating that the warning water level has been exceeded and character data indicating the water level difference acquired by the processing means are generated. Means and a character adding means for adding character information indicating the water level difference generated by the character generation means to the image of the monitoring target point photographed by the space monitoring camera, and adding the character information to the monitoring target point. When the water level of the river in the river reaches the warning water level, the character station and the character information indicating the water level difference are added to the image of the monitoring target point taken by the machine side device with the space monitoring camera, and the monitoring station is added. It is characterized by transmitting to.

Further, according to the present invention, in the above-mentioned monitoring system, character information representing a name peculiar to the monitoring target point or the fixed camera can be changed in the machine side device by remote control from the monitoring station. And a character addition control means for holding the character information and adding the character information to the image of the monitoring target point photographed by the space monitoring camera.

According to the present invention, in the above-mentioned surveillance system, the machine-side device further comprises means for adding character information representing the present time to the image of the surveillance target point photographed by the space surveillance camera. Is characterized by.

Further, in the above-mentioned monitoring system for monitoring a river, the present invention provides an illumination lamp for irradiating the above-mentioned water plate to the above-mentioned equipment, and a remote operation of the above-mentioned illumination lamp from the above-mentioned monitoring station. And a control unit for controlling lighting.

The present invention also provides, in the above-mentioned monitoring system for monitoring a river, image transmission for transmitting the image information of the measuring plate taken by the fixed camera to the monitoring station, to the machine side device. It is characterized by comprising means.

Further, the present invention is an image processing method of a surveillance system, wherein a surveillance image of a surveillance target point photographed by a turning type space surveillance camera is transmitted to a surveillance station, and the surveillance station remotely monitors the surveillance target point. So, by monitoring the specific event at the monitoring target point with a fixed camera for monitoring, and generating character information according to the state of the event from the fixed monitoring image,
It is characterized in that the character information is added to a surveillance image of a surveillance target spot photographed by the space surveillance camera and transmitted to the surveillance station.

Further, according to the present invention, a river to be monitored is photographed by a revolving type space surveillance camera, and the surveillance image photographed by the surveillance camera is transmitted to a surveillance station to remotely monitor the surveillance river. An image processing method of a monitoring system, wherein a water plate provided in the river is fixedly monitored by a fixed camera for monitoring, the water level of the river is determined from the fixed monitoring image, and character information is generated according to the determination result. The character information is added to a monitoring image captured by the space monitoring camera and transmitted to the monitoring station.

By providing the above-described system configuration or image processing function of the present invention, it is possible to easily and easily monitor the situation of the monitoring target including detailed observation information with an economically advantageous configuration that effectively utilizes the existing system components. A highly reliable monitoring system that can be accurately grasped can be provided. In addition, it is possible to provide a highly reliable river monitoring system that has an economically advantageous configuration that effectively uses the existing system components and that can easily and accurately grasp the state of the river at each monitoring point, including the water level.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the structure of a monitoring system according to the present invention.

In the figure, 10 is a machine side device, 20 is a monitoring station, 30 is a water plate, 40 is a water plate illuminating device, 50 is a swivel type space monitoring camera, and 60 is a fixed water plate fixed monitor. It is a camera (fixed camera).

The machine-side device 10 includes a swivel type space monitoring camera 50 and a fixed water plate monitoring camera (fixed camera) 6.
It is installed at one monitoring target point (site) together with 0, and the image of the monitoring target point taken by the swivel type space monitoring camera 50 shows the image of the water measuring plate 30 taken by the fixed water plate fixed monitoring camera (fixed camera) 60. The character information generated based on the captured image is added and transmitted to the monitoring station 20.

The monitoring station 20 is connected to each machine-side apparatus at a plurality of monitoring target points including the machine-side apparatus 10 via a predetermined transmission line, and is a photographed image received from the machine-side apparatus at each monitoring target point. Will remotely monitor the river at each monitoring point.

The water quantity plate 30 is fixed to a bridge girder or the like of the river at the monitoring target point and indicates the current water level on a scale. The water meter plate illumination device 40 irradiates the water meter plate 30 provided on the bridge girder or the like under the control of the machine side device 10.

The turning type space monitoring camera 50 is controlled to turn under the control of the machine side device 10 and photographs a predetermined area including the river at the monitoring target point. Various character information such as a warning water level excess message, a water level difference between the dangerous water level and the current water level, the name of the installed camera, and the current time, which will be described later, is added to the image of the monitoring target point captured by the turning space monitoring camera 50. It

Fixed water plate fixed monitoring camera (fixed camera) 6
0 is fixedly provided at a fixed position where the scale marking of the water measuring plate 30 fixedly provided on the bridge girder of the river at the monitoring target point can be recognized, and the water level marking of the water measuring plate 30 is fixedly monitored. To do.

Reference numerals 11 to 17 are constituent elements of the machine side device 10, and here, the video distributor 11, the character generators 12A, 12B and 12C, the MPEG2 encoder 13A, the MJPEG encoders 13B and 13C, and the character generation control. It includes components such as a unit 14, a determination processing unit 15, an illumination control unit 16, and a transmission unit 17.

The video distributor 11 provides the image (NTSC video signal) of the monitoring target point photographed by the turning type space monitoring camera 50 to the image supplied to the MPEG2 encoder 13A and the image supplied to the MJPEG encoder 13B. Distribute to.

Under the control of the character generation control unit 14, the character generation units 12A, 12B and 12C generate character information to be added (embedded) in the image taken by the camera.

Of these, the character generation unit 12A generates characters in the image (see image 3 in FIG. 2) which is a moving image (MPEG2) and which is passed through the MPEG2 encoder 13A and photographed by the turning space monitoring camera 50. Under the control of the control unit 14, various character information such as a camera name, a warning water level excess message, and a water level difference between the dangerous water level and the current water level is added (embedded).

The character generator 12B is a semi-moving image taken by the turning space monitoring camera 50 and passed to the MJPEG encoder 13B (see image 2 in FIG. 2).
Under the control of the character generation control unit 14, various character information such as a camera name, current time, warning water level excess message, water level difference between dangerous water level and current water level, etc. is added (embedded).

The character generation unit 12C generates characters on the image (see image 1 in FIG. 2) which is a semi-moving image and is passed to the MJPEG encoder 13C, which is taken by the fixed water plate monitoring camera (fixed camera) 60. Under the control of the control unit 14, various character information such as camera name, current time, warning water level excess message, water level difference between dangerous water level and current water level, etc. is added (embedded).

MPEG2 encoder 13A and MJ
The PEG encoders 13B and 13C perform encoding processing (encoding processing) on the respectively input camera-captured images.

Of these, the MPEG2 encoder 13A
Encodes the image of the monitoring target point (see NTSC image 3 in FIG. 2) captured by the turning space monitoring camera 50 into MPEG2 image data (moving image data) (MP in FIG. 2).
(See EG2 image 3).

The MJPEG encoder 13B code-compresses the image (see NTSC image 2 in FIG. 2) of the monitoring target point photographed by the turning type space monitoring camera 50 into MJPEG image data (quasi moving image data) (see FIG. 2). See JPEG image 2).

The MJPEG encoder 13C is used for measuring the water plate 3 taken by a fixed water plate monitoring camera (fixed camera) 60.
0 image (see NTSC image 1 in Figure 2) in MJPEG
Code compression is performed on image data (quasi-moving image data) (J in FIG. 2).
See PEG image 1).

The character generation control unit 14 holds the additional character information (here, fixed camera name, rotating camera name, message text, etc.) sent from the monitoring station 20, and the time for measuring and correcting the time. With a timekeeping correction unit,
Based on the information about the holding unit and the time and time correction, the determination result of the determination processing unit 15, the water level difference, and the like, the swivel type space monitoring camera 50 and the fixed water plate fixed monitoring camera (fixed camera) 60 are displayed. Character data to be added (embedded) to the captured image (see images 1 to 3 in FIG. 2) is generated, and the character data is passed to the character generators 12A, 12B, and 12C, and a character pattern to be added to the camera captured image is generated. Output control.

The determination processing unit 15 analyzes the image of the water measuring plate 30 taken by the fixed water plate monitoring camera (fixed camera) 60 (reads the scale marking value), and the river at the monitoring target point. It determines whether or not the water level exceeds the warning water level, and when the warning water level is exceeded, calculates the difference between the dangerous water level and the current water level, and sends the judgment result, information such as the water level difference to the character generation control unit 14. To do.

The lighting controller 16 sends an ON / OFF signal (DO signal) according to the instruction from the monitoring station 20 to the water plate lighting device 4.
0, and irradiates the measuring plate 30 with the measuring plate illuminator 4
0 is turned on / off.

The transmission unit 17 communicates with the monitoring station 20 via the predetermined transmission path, each of the image data, the rotation drive signal of the rotation type space monitoring camera 50, and the turning on / off of the water quantity plate illumination device 40. It exchanges various information such as control signals.

Reference numerals 21 to 26 are constituent elements of the monitoring station 20, and here, the transmission section 21, the NTP server 22, the controller 23, the video switcher 24, the display monitor 25, the personal computer (PC) 26 and the like. It comprises the components of.

The transmission section 21 sends and receives various kinds of information to and from the transmission section 17 provided in the machine side device 10 via a predetermined transmission path. Here, the MPEG2 data of the image taken by the turning type space monitoring camera 50 from the machine side device 10 (see FIG.
MPEG2 image 3) of the same image, JPEG data of the same image (see JPEG image 2 of FIG. 2), JPEG data of an image taken by a fixed water plate fixed monitoring camera (fixed camera) 60 that fixedly monitors the water plate 30 ( 2) (see JPEG image 1 in FIG. 2) and the like, and the machine side device 10 receives a turning drive signal of the turning type space monitoring camera 50 and turns on / off the water plate illumination device 40.
Sends off control signals, etc.

The NTP server (network time protocol server) 22 serves as a basic clock on the net, and here the character generation control unit 14 of the machine side device 10 is accessed by the controller 23.

The controller 23 controls the entire system. Here, the above-mentioned various image transfer control,
The on / off control of the water quantity plate illuminator 40 is performed.

The video switcher 24 receives a camera image which is received by the transmission unit 21 and is decoded by a decoder (DEC) (a moving image with the characters of the monitoring target point photographed by the turning type space monitoring camera 50 added thereto. An NTSC video signal obtained by decoding MPEG2 data) is sent and controlled to be switched to a plurality of display monitors 25.

The display monitor 25 is a video switcher 24.
An NTSC video signal is input via the display device, and a moving image sent from the machine-side device 10 (a moving image to which a character of a monitoring target point captured by the turning type space monitoring camera 50 is added) is displayed on a monitor.

The personal computer (PC) 26 is
MPEG2 data and JPEG data of an image captured by the turning space monitoring camera 50 via the transmission unit 21 (see FIG. 2).
JPEG image 2 of FIG. 2) and JPEG data of an image taken by a fixed water plate monitoring camera (fixed camera) 60 that fixedly monitors the water plate 30 (see JPEG image 1 of FIG. 2), whichever is input. It has a processing function of selecting or displaying it at a specific position on the monitor screen, and is also used for inputting a control instruction command to the machine side device 10.

FIG. 2 is a flow chart showing the processing procedure of each part for explaining the character addition processing operation using the image taken by the fixed water plate monitoring camera (fixed camera) 60 in the above embodiment. .

FIG. 3 is a flow chart showing the procedure for remotely updating the fixed camera name in the above embodiment.

FIG. 4 and FIG. 5 are views showing display examples of the monitoring image in the above embodiment.

Here, the operation of the embodiment of the present invention will be described with reference to the drawings.

The swivel type space monitoring camera 50 is used for the monitoring station 2
By the turning drive control of the machine side device 10 according to the instruction of 0, a predetermined area including the river of the monitoring target point is photographed and the photographed image (NTSC video signal) is sent to the machine side device 10.

Further, a fixed water plate fixed monitoring camera fixedly provided at a fixed position where the scale markings of the water plate 30 fixedly provided on the bridge girder or the like at the monitoring target point can be recognized ( The fixed camera 60 fixedly monitors the water level marking of the water quantity plate 30, and takes a photographed image (NTSC video signal) of the water level marking on the machine side device 1.
Send to 0.

In the machine side device 10, the image distributor 11
Distributes the image (NTSC video signal) of the monitoring target point photographed by the turning space monitoring camera 50 to the MPEG2 encoder 13A and the MJPEG encoder 13B.

Further, a photographed image (NTSC) of the water measuring plate 30 photographed by the camera for fixed monitoring of the water measuring plate (fixed camera) 60.
The video signal) is supplied to the MJPEG encoder 13C.

The determination processing section 15 analyzes the image of the water measuring plate 30 taken by the above-mentioned water measuring plate fixed monitoring camera (fixed camera) 60, reads the scale marking value, and reads the river at the monitoring target point. Whether or not the water level exceeds the warning water level is determined, and when the warning water level is exceeded, the difference between the dangerous water level and the current water level is calculated, and the determination result, information such as the water level difference is sent to the character generation control unit 14. .

The character generation control unit 14 has the above-mentioned determination processing unit 1
5, the information such as the water level difference, and the additional character information (here, the fixed camera name, the turning camera name, and the like) sent from the monitoring station 20 held in a holding unit (not shown).
Message text etc.) and time information to be held (here,
Based on the year, month, day, hour, minute), the character generation unit 12A,
Additional character data (character code string) to be passed to 12B and 12C
And each additional character data is generated by each character generation unit 12
It is sent to A, 12B and 12C.

When the character generators 12A, 12B, and 12C receive the additional character data from the character generation controller 14, the character generators 12A, 12B, and 12C generate a character pattern according to the data and add (embed) it to the image photographed by the camera.

At this time, the character generator 12A generates characters on the image (see image 3 in FIG. 2) which is a moving image (MPEG2) and which is passed through the MPEG2 encoder 13A and photographed by the turning type space monitoring camera 50. Under the control of the control unit 14, various character information such as a camera name, a warning water level excess message, and a water level difference between the dangerous water level and the current water level is added (embedded).

Further, the character generation unit 12B uses the MJPEG encoder 13 photographed by the turning type space monitoring camera 50.
Under the control of the character generation controller 14, the camera name, the current time, the warning water level excess message, the water level difference between the dangerous water level and the current water level, etc. are displayed on the image that is a semi-moving image (see image 2 in FIG. 2) passed to B. , Add various character information (embed).

Further, the character generation unit 12C is an MJPE imaged by a fixed water plate monitoring camera (fixed camera) 60.
According to the control of the character generation control unit 14, the camera name, the current time, the warning water level excess message, the image that is a quasi-moving image passed to the G encoder 13C (see image 1 in FIG. 2),
Add (embed) various character information such as the difference between the dangerous water level and the current water level.

MPEG2 encoder 13A and MJ
The PEG encoders 13 </ b> B and 13 </ b> C each encode the input camera-captured image with characters and perform an encoding process (encoding process) and send the encoded image to the transmission unit 17.

At this time, the MPEG2 encoder 13A
An image (see NTSC image 3 in FIG. 2) of a monitoring target point photographed by the turning type space monitoring camera 50 is code-compressed into MPEG2 image data (moving image data) (MPEG in FIG. 2).
2 Refer to image 3) It is sent to the transmission unit 17.

Further, the MJPEG encoder 13B code-compresses the image of the monitoring target point (see NTSC image 2 in FIG. 2) photographed by the turning type space monitoring camera 50 into MJPEG image data (quasi moving image data) ( JPEG of Figure 2
(See image 2) It is sent to the transmission unit 17.

Further, the MJPEG encoder 13C MJs the image of the measuring plate 30 (see NTSC image 1 in FIG. 2) taken by the measuring plate fixed monitoring camera (fixed camera) 60.
The PEG image data (quasi moving image data) is code-compressed (see JPEG image 1 in FIG. 2) and sent to the transmission unit 17.

The transmission unit 17 is the MPEG2 encoder 1 described above.
The image data received from the 3A, MJPEG encoders 13B, 13C, etc. is transmitted to the monitoring station 20 via a transmission line in a predetermined transmission format.

In the monitor station 20, when the transmission section 21 receives image data from the transmission section 17 of the machine side device 10,
This image data is distributed and supplied to the decoder (DEC) and the personal computer (PC) 26.

Here, the MPEG2 data of the image taken by the turning type space monitoring camera 50 (see MPEG2 image 3 of FIG. 2) and the JPEG data of the same image (JPE of FIG. 2).
G image 2) and J of the image taken by the fixed water plate monitoring camera (fixed camera) 60 that fixedly monitors the water plate 30.
Receives PEG data (see JPEG image 1 in FIG. 2),
The MPEG2 data (MPEG2 image) is decoded by a decoder (D
EC) to the video switcher 24, and
The PEG data (JPEG images 1 and 2) is sent to the personal computer (PC) 26.

The video switcher 24 is a decoder (DEC).
The image captured by the camera (NTSC video signal obtained by decoding the MPEG2 data of the moving image with the characters of the monitoring target point captured by the turning type space monitoring camera 50) is transmitted to the selected display monitor 25. To do.

As a result, the display monitor 25 is displayed as shown in FIG.
Camera image with MPEG2 characters (movie) as shown in
Is displayed on the monitor. Further, the personal computer (PC) 26 has a camera image with characters of MJPEG (semi-moving image) which is switched in a predetermined time unit (for example, a unit of 1 second) as shown in FIG. 4, or an amount as shown in FIG. The fixed camera image with MJPEG characters on the water plate 30 is selectively displayed on the monitor. Note that the character-added camera images shown in FIGS. 4 and 5 are character-added images when the determination processing unit 15 determines that the warning water level is exceeded. In this example, the warning water level excess message (warning water level exceeded (Dangerous water) and the water level difference (50 cm) between the dangerous water level and the current water level are added with the camera name (○ Ohashi upstream river △△ river right bank).

The camera name, the warning water level excess message text, etc., to which characters are added as described above, can be updated (changed) collectively or by remote control on the monitoring station 20 side by designating the machine side device 10. Is. FIG. 3 shows a flow of additional character update processing by remote operation at this time.

Here, under the control of the controller 23 for controlling the system provided in the monitoring station 20, for example, the correction character of the camera name input from the personal computer (PC) 26 is the camera name correction instruction command. Along with this, it is sent to the machine side device 10 via the transmission unit 21 (FIG. 3).
Steps S1, S2). When the character generation control unit 14 of the machine-side device 10 receives the camera name correction instruction command and the corrected character data, the character generation control unit 14 replaces the character data of the camera name held in the holding unit with the corrected character data, Update the character data (steps S3 and S in FIG. 3).
4) After that, the character data of the updated camera name is sent to the character generators 12A, 12B and 12C.

Further, with respect to the automatic correction of the character addition time and the automatic on / off control of the water quantity plate illumination, similarly to the above, under the control of the controller 23, the instruction command is transmitted via the transmission unit 21 to the machine side device. It is executed by sending to 10. At this time, the controller 23 periodically accesses the NTP server (network time protocol server) 22 to correct the time. Then, the lighting on / off data is sent to the lighting control unit 16 of the machine side device 10 at each of the lighting on time and the lighting off time of the water quantity plate 30 on a daily basis. Upon receiving the on / off data, the illumination control unit 16 sends an on / off signal (DO signal) to the water quantity plate illumination device 40.

In this way, the controller 23 controls the water quantity plate 3 photographed by the water quantity plate fixed monitoring camera (fixed camera) 60.
Water plate lighting device 40 so that the scale marking of 0 can always be read
Lighting control is performed.

Further, the controller 23 sends time data to the character generation control unit 14 of the machine side device 10 at every predetermined time. When the character generation control unit 14 receives the time data,
The time measured by the internal time clock correction unit is corrected according to the time data.

In the above-described embodiment, the river monitoring system is taken as an example. However, for example, a monitoring system for monitoring a slope failure on a road or the like and a bank breakage on a river are monitored. It is applicable to various monitoring systems such as a monitoring system. For example, in a surveillance system for monitoring a slope failure on a road or the like, there is a possibility that the turning type space monitoring camera 50 captures a wide area of the slope on the road or the like and the fixed camera 60 causes the slope failure. The high point is fixedly monitored and additional characters are generated according to the state. Further, in a monitoring system for monitoring the breakage of a bank in a river, the turning type space monitoring camera 50 photographs the bank of a river in a wide area, and the fixed camera 60 fixedly monitors points with a high possibility of breakage. To generate an additional character according to the state.

[0082]

As described in detail above, according to the present invention, it is possible to accurately and easily monitor the status of a monitoring target, including detailed observation information, with an economically advantageous structure that effectively utilizes the existing system components. A reliable monitoring system that can be grasped can be provided. In addition, it is possible to provide a highly reliable river monitoring system that has an economically advantageous configuration that effectively uses the existing system components and that can easily and accurately grasp the state of the river at each monitoring point, including the water level.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a monitoring system according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a character addition processing procedure using a captured image of the water level plate fixed monitoring camera in the above embodiment.

FIG. 3 is a flowchart showing a remote camera name remote update processing procedure in the embodiment.

FIG. 4 is a diagram showing a display example of a monitoring image in the embodiment.

FIG. 5 is a diagram showing a display example of a monitoring image in the embodiment.

[Explanation of symbols]

10 ... Machine side device 11 ... Image distributor 12A, 12B, 12C ... Character generator 13A ... MPEG2 encoder 13B, 13C ... MJPEG encoder 14 ... Character generation control unit 15 ... Judgment processing unit 16 ... Lighting control unit 17 ... Transmission unit 20 ... Monitoring station 21 ... Transmission unit 22 ... NTP server 23 ... Controller 24 ... Video switcher 25 ... Display monitor 26 ... Personal computer (PC) 30 ... Water plate 40 ... Water plate illumination device 50 ... Rotating type space monitoring camera 60 ... Fixed water plate fixed monitoring camera (fixed camera)

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04N 5/225 H04N 5/225 C 5/232 5/232 BF term (reference) 5B057 AA19 BA02 CE08 DA07 DA15 DB02 DB06 DB09 5C022 AA01 AA13 AB15 AB61 AB62 AB65 AC27 AC69 5C054 AA02 CA04 CC02 CE15 CF05 CG05 CH01 DA06 EA01 EA03 EA05 EG05 FC15 FE02 FE14 FE16 FE28 FF02 FF06 HA18 5H223 AA01 AA15 BB09 DD07

Claims (10)

[Claims] 1. A swivel type space monitoring camera and a machine side device provided at each of a plurality of monitoring target points, and images connected to the machine side device via a transmission line and taken by the monitoring camera. In a surveillance system consisting of a surveillance station for remotely monitoring a surveillance point, a fixed camera for surveillance that fixedly monitors a specific surveillance object at the surveillance point in the machine side device, and an image taken by the fixed camera The processing means for grasping the state of the specific monitoring target from the image, the character generation means for generating character information according to the content grasped by the processing means, and the character information generated by the character generation means by the space monitoring camera. And a character adding unit for adding to the image of the monitored target point, wherein the character information is added to the image of the monitored target point by the image captured by the space monitoring camera by the machine-side device. Is added to the monitoring station and transmitted to the monitoring station. 2. A turning type space monitoring camera and a machine side device provided at each of a plurality of monitoring target points for monitoring a river, and the monitoring device connected to these machine side devices via a transmission line. In a monitoring system consisting of a monitoring station that remotely monitors a monitoring target point by using an image taken by a camera, a fixed device for monitoring that fixes and monitors a water plate installed in the river at the monitoring target point on the machine side device. A camera, a determination unit that determines the water level of the river from the image captured by the fixed camera, a character generation unit that generates character information based on the water level determined by the determination unit, and a character generation unit that generates the character information. Character adding means for adding character information to the image of the monitoring target point photographed by the space monitoring camera, wherein the text is added to the image of the monitoring target point photographed by the space monitoring camera by the machine side device. A monitoring system, wherein character information is added and transmitted to the monitoring station. 3. A swivel type space monitoring camera and a machine side device provided at each of a plurality of monitoring target points for monitoring a river, and these machine side devices are connected via a transmission line and are used for the monitoring. In a monitoring system consisting of a monitoring station that remotely monitors a monitoring target point by using an image taken by a camera, a fixed device for monitoring that fixes and monitors a water plate installed in the river at the monitoring target point on the machine side device. A camera, a determining unit that determines that the water level of the river has reached an alarming water level from a captured image of the fixed camera, and when determining that the alarming water level has been reached by the determining unit,
The system further comprises a character generation unit that generates a character message indicating that the alert water level has been exceeded, and a character addition unit that adds the character message generated by the character generation unit to the image of the monitoring target point photographed by the space monitoring camera. When the water level of the river at the monitoring point reaches a warning level, the text message is added to the image of the monitoring point captured by the space monitoring camera by the machine-side device and added to the monitoring station. A monitoring system characterized by transmitting. 4. A swivel type space monitoring camera and a machine side device provided at each of a plurality of monitoring target points for monitoring a river, and these machine side devices are connected via a transmission line and are used for the monitoring. In a monitoring system consisting of a monitoring station that remotely monitors a monitoring target point by using an image taken by a camera, a fixed device for monitoring that fixes and monitors a water plate installed in the river at the monitoring target point on the machine side device. A camera, a processing unit that calculates a water level difference between a current water level and a dangerous water level from a captured image of the fixed camera, and a determination unit that determines that the water level of the river has reached a warning water level from the captured image of the fixed camera, When it is determined that the warning level has been reached by the determination means,
A character message indicating that the warning water level is exceeded, a character generation unit that generates character information indicating the water level difference acquired by the processing unit, a character message generated by the character generation unit and character information indicating the water level difference are stored in the space. A character addition means for adding to the image of the monitoring target point taken by the monitoring camera, and when the water level of the river at the monitoring target point reaches the warning water level, the machine side device is for space monitoring. A monitoring system, wherein the character message and character information indicating a water level difference are added to an image of a monitoring target point captured by a camera and transmitted to the monitoring station. 5. The machine-side device holds character information representing a name unique to the monitoring target point or the fixed camera so that the character information can be changed by remote control from the monitoring station, and the character information is spatially monitored. The monitoring system according to any one of claims 1 to 4, further comprising a character addition control unit that adds the image to the image of the monitoring target point captured by the camera for use. 6. The apparatus of claim 1, further comprising means for adding character information representing a current time to an image of a monitoring target point photographed by the space monitoring camera.
5. The monitoring system according to any one of 4 to 4. 7. The apparatus on the machine side is provided with an illuminating lamp for irradiating the water quantity plate, and a control means for controlling lighting of the illuminating lamp by remote control from the monitoring station. The monitoring system according to any one of 2 to 4. 8. The apparatus according to claim 2, further comprising image transmission means for transmitting, to the monitoring station, image information of the water plate taken by the fixed camera.
Or the monitoring system described in 4. 9. An image processing method for a surveillance system, wherein a surveillance image of a surveillance target point photographed by a turning type space surveillance camera is transmitted to a surveillance station, and the surveillance station remotely monitors the surveillance target point, the method comprising: A specific event at the monitoring target point is monitored by a fixed camera for monitoring, character information corresponding to the state of the event is generated from the fixed monitoring image, and the character information is photographed by the space monitoring camera. An image processing method for a surveillance system, comprising adding to a surveillance image of a surveillance target point and transmitting the surveillance image to the surveillance station. 10. An image of a surveillance system for remotely monitoring a river to be monitored by capturing an image of a river to be monitored by a revolving type space monitoring camera and transmitting the monitoring image captured by the monitoring camera to a monitoring station. It is a processing method, the water plate provided in the river is fixedly monitored by a fixed camera for monitoring, the water level of the river is determined from the fixed monitoring image, and character information is generated according to the determination result, and the character information is Is added to a surveillance image taken by the space surveillance camera and transmitted to the surveillance station.