JPH11284988A - Supervisory camera system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize the supervisory camera system where an intruder going to intrude in the dark is detected and traced without being noticed by the intruder and a clear image is obtained, and a high sensitivity color camera is easily focused even in a dark surrounding state, which is provided with a position display function of a supervised object on a map and is applicable to such a case as sensing of a suspected case of arson. SOLUTION: An infrared ray camera 3 that converts IR emitted from an object into an image and a high sensitivity color camera 6 are combined in this system. The infrared ray camera 3 senses an intruder in the dark and the high sensitivity color camera 6 is directed in the direction and a sharp image is obtained by lighting a projector 10 as required. Furthermore, the infrared ray camera 3 is provided with a fire sensing filter to supervise a suspected case of arson and with a laser range finder to measure a distance up to the intruder, then the camera is automatically focused even in the dark in this supervisory camera system.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surveillance camera device for monitoring an area where lighting facilities are scarce, such as a port facility, a strait, or a city suburb.

[0002]

2. Description of the Related Art FIG. 11 shows a conventional surveillance camera device, 6 is a high-sensitivity color camera for displaying a color image even with scarce light, 5 is an electric zoom lens mounted on the high-sensitivity color camera 6, and 7 is a high sensitivity. Turn the color camera 6 left and right,
Electric rotary tables b and 46 for rotating vertically are limit switches 10 for detecting the limit rotation angle of the electric rotary table b7.
Is a light projector installed on the high-sensitivity color camera 6 with the optical axis directions substantially equal to each other. 23 is an image processing device b for detecting an intruder from the image signal from the high-sensitivity color camera 6 by image processing. The image signal output from the processing device b23 and the detection information signal obtained by digitizing the image processing result are aggregated / multiplexed and converted into an image information signal, and the electric turntable b7, the electric zoom lens 5, the light projector 10
The image / control signal concentrator repeaters a and 12 for relaying device control signals for controlling the image / control signal concentrator repeater a11 convert the image / control signal output from the image / control signal concentrator repeater a11 into a modulated high-frequency signal for wireless transmission. The wireless transmission devices a and 13 that convert the high-frequency signal output from the wireless transmission device a12 into radio waves, and convert the radio waves into the antenna b1.
The antennas a and 14 for sending to the antenna 4 capture radio waves radiated from the antenna a13 and convert them into high-frequency signals. The antennas b and 15 demodulate the high-frequency signals output from the antenna b14 and convert them to image / device control signals. The wireless transmission devices b and 16 separate the image signal and the detection information signal from the image / device control signal output from the wireless transmission device b15, and control the electric rotating base b7, the electric zoom lens 5, and the light projector 10 by controlling the devices. The image / control signal concentrator repeaters b and 17 for relaying signals are high-sensitivity color monitors for displaying image signals output from the image / control signal concentrator repeater b16 on the screen. Based on the device control signal relayed by the signal line relay device b16, information of each device is transmitted to the operator via the operating device 20, and Receiving an instruction from the author via the operation device 20, to create a device control signal for controlling each device,
A control processor 20 for transmitting the image / control signal line relay device b16 is an operation device for the operator to operate each device.

Next, the operation will be described separately for the flow of image signals and the flow of control signals. The flow of the image signal is as follows. The image of the subject captured by the high-sensitivity color camera 6 via the electric zoom lens 5 is sent to the image processing device b23 as an image signal. In the image processing device b23,
If the processing execution designation to be transmitted through each wireless transmission device instructed by the control processor 19 is set, the input image signal is analyzed, and the intruder is analyzed by the method described later with reference to FIG. Detects the presence / absence and the position, size, and movement direction of the intruder on the image when there is an intruder,
The image signal is sent as it is to the image / control signal line repeater a11 as a detection information signal. If the processing execution designation of the control processor 19 is not set, the image processing device b23 outputs the input image as it is. In the image / control signal line repeater a11, the effective image signal from the image processor b23 and the detection information signal are frequency-multiplexed and sent to the wireless transmission device a12 (the control processor process execution designation is set to the image processor b23. The detection information signal is output to the image processing device b2 even when the
3 is output. However, since this detection information signal is not processed by the control processor 19, it becomes substantially invalid. ). The wireless transmission device a12 modulates a signal transmitted from the wireless transmission device a12 to create a high-frequency signal mixed with a carrier wave. This high-frequency signal is converted into a radio wave by the antenna a13, transmitted to the air, and received by the antenna b14. The radio wave received by the antenna b14 is converted into a high-frequency signal and input to the wireless transmission device b15. The wireless transmission device b15 demodulates this high-frequency signal, returns it to a frequency-multiplexed image / control signal, and sends it to the image / control signal line repeater b16. Image / control signal line repeater b
Reference numeral 16 separates the multiplexed image / control signal into an image signal and a detection information signal, and distributes the image signal to the monitor a17 and the detection information signal to the control processor 19.

Next, the flow of a control signal will be described.
The operator inputs an instruction for controlling each device to the control processor 19 via the operation device 20. Based on this instruction, the control processor 19 creates a device control signal for controlling each device and sends it to the image / control signal line repeater b16. The image / control signal concentrator relay device b16 relays the transmitted device control signal, and transmits the transmitted device control signal to the wireless transmission device b15.
Send to The wireless transmission device b15 modulates the device control signal to a frequency different from a radio wave transmitted from the antenna a13 to the antenna b14, and sends the modulated signal to the antenna b14. Antenna b
14 converts the received high-frequency signal into a radio wave and transmits it to the air. The antenna a13 converts the received radio wave into a high-frequency signal and sends it to the wireless transmission device a12. The wireless transmission device a12 demodulates the device control signal from the high frequency signal and sends it to the image / control signal concentrator repeater a11. image/
The control signal concentrator repeater a11 converts this device control signal into
Depending on the contents, the electric zoom lens 5, the high-sensitivity color camera 6, the electric turntable b7, the projector 10, the image processing device b
Relay to 23. For example, in the case of the electric zoom lens 5, control of telephoto / wide angle, aperture and focus, in the case of the high-sensitivity color camera 6, the sensitivity is switched, in the case of the electric turntable b 7, up, down, left and right, and in the case of the projector 10, the light is turned. Lighting / extinguishing is controlled respectively, and in the case of the image processing apparatus b23, switching of the presence / absence of setting of processing execution designation and the like are performed. Since the turntable b7 has a mechanical rotation limit angle in both the vertical and horizontal directions, a limit switch 46 is provided in the device immediately before the turntable b7. A mechanism to stop the swing is provided. The detection information signal generated from the image processing device b23 is transmitted to the image / control signal concentrator repeater b16 via the same path as the above-described image signal, and then transmitted to the control processor 19. The control processor 19 analyzes this detection information signal when the processing execution designation is set to the image processing device b23, and further, when there is an intruder, the operator enters the intruder via the operation device 20 and the monitor a17. The detection notification and the intruder information such as the position, the size, and the moving direction of the intruder are displayed. When the processing execution designation is not set in the image processing device b23, the detection information signal is not analyzed, and It does not display intruder information. Further, using this surveillance camera device, the operator operates the operation device 20 without setting the processing execution designation of the image processing device b23, turns the electric rotating base b7 in an arbitrary direction, and sets the telephoto / By manually controlling the wide angle, a desired image is obtained and the intruder is tracked. Also, by fixing the high-sensitivity color camera 6 at an arbitrary position and setting a process execution designation in the image processing device b23, a suspicious person or the like entering the imaging range is automatically detected and displayed on the operation device 20, The operator can also be alerted. The image processing device b2
Reference numeral 3 has an image selection unit therein, and when the processing execution designation is set, the image signal from the high-sensitivity color camera 6 is sent directly to the image / control signal line repeater a regardless of the presence or absence of the processing execution instruction. .

FIG. 12 shows the configuration of an image processing device b23 used in the above-mentioned conventional monitoring camera device.
In the figure, reference numeral 31 denotes an image input interface for taking in an image signal input from the outside of the image processing device b23 (in this monitoring camera device, from the high-sensitivity color camera 6 via an image signal switch), and 32 denotes the image input interface 3
An image memory 33 for storing an image signal output from 1; an image smoothing unit a for reducing noise in the image signal by obtaining an average value in the time direction of the image signal output from the image memory 32; Reference numeral 34 denotes a difference reference image memory 35 which stores the image signal output from the image smoothing unit a33.
An input gate 35 for switching between input and non-input, a reference image memory 35 for storing an image signal output from the input gate 34 as a reference image for difference processing, and a reference numeral 36 for an image signal output from the image memory 32 The other image smoothing units b and 37, which output the average value in the time direction to reduce noise in the image signal, output the average value in the time direction between the image smoothing unit b36 and the contents of the difference reference image memory 35. ALU (Arithmetic Logic)
Unit), 38 converts the image in the image memory 32 into a monochrome gray-scale image, and further calculates and determines a threshold value for binarization.
An image binarization unit for binarizing the difference image output from the ALU 37 based on the binarization threshold value output from the binarization coefficient determination unit 38, and a binarization unit 40 of the image binarization unit 39 A pixel counting unit that counts the pixels for each label calculated by the processor 44 from the data, 41 is an output image,
Output from image memory 32, difference reference image memory 35
, An image selection unit for selecting any one of output from the ALU 37 and a difference image output from the ALU 37. The current position of the invader by the image processing is represented by a line segment, and the current time is represented by a character string. A pattern overlay memory 43 for overlay display superimposes the pattern overlay memory 42 and the image output from the image selection unit 41 and outputs the result to the outside of the image processing device b23 (in the case of the present surveillance camera device, image / control Signal concentrator repeater a1
1) An image output interface, a processor that controls the above-described units and calculates the direction in which the same object has moved by correlating the time direction of each label output by the image binarization unit 39, and 45 is an image processing device b23 From outside (in the case of this monitoring camera device, the image / control signal line relay device a1
1) An external control device interface that receives commands and data for controlling the operation of the device and detects an intruder and returns its position, size, moving direction, and moving speed as numerical data.

Next, the operation will be described. When the processing is designated by the control processor 19 via the external control device interface 45, the image signal input from the image input interface 31 is temporarily stored in the image memory 32. Thereafter, the image signal is split into two outputs,
33, which are image smoothing units a and b for smoothing an image,
One is input to a difference reference image memory 35 via an input gate 34 and the other is input to an ALU 37 via an input gate 34. The image processing device b23 temporarily stores the input image signal as a background still image in the difference reference image memory 35, and thereafter uses the input image signal (the image signal obtained from the image smoothing unit b36) as a reference for this difference. The image stored in the image memory 35 is subtracted. This is because only a moving background image is imaged as a difference image. Then, while continuously changing the binarization threshold value for the difference image, a threshold value that minimizes the number of boundary points of the extracted binary image (the number of extracted external contacts) is found. (Each pixel is divided into one of 0 and 1 depending on the density of the image). This threshold value is determined by a method of determining the threshold value so that the target object exists in a solidified state as much as possible during binarization.
This utilizes the phenomenon that the larger the number of boundary points of a binary image, the worse the clumping condition and the smaller the number, the better the clumping condition. The processor 44 applies the binarized image to the
After performing the noise removal processing, a labeling process is performed on each pixel block to extract a pixel block to which a label is assigned. At this time, the barycentric position of the pixel cluster of each label and the number of vertical and horizontal pixels of the circumscribed rectangle are detected. The information of each label is sent to the pixel counting section 40, and the number of pixels is counted. The change in the count number of the pixel count unit 40 becomes larger than a predetermined value only when the image has changed by a certain amount or more, and the processor 44 determines this to detect an intruder. Based on the detection result, the processor 44 determines the position of the intruder as detection information by using the center of gravity of the corresponding label,
The size is the area of the circumscribed rectangle of the cluster of pixels to which the corresponding label is assigned, and the moving direction and the moving speed are obtained by changing the center of gravity of the same label at different times, and intruding on the screen to display on the monitor a17. The body position, circumscribed square time, and the like are written in the pattern overlay memory 42. The detection information is sent to the external control device (control processor 19) via the external control device interface 45 as a detection information signal. The characters and graphics written in the pattern overlay memory 42 are superimposed and synthesized on the image selected by the image selection unit 41, and the image output interface 4
Sent to 3. An input gate 34 is provided in the preceding stage of the difference reference image memory 35, and the processor 44, which has been instructed via the external control device interface 45, operates the input gate 34 to update the background image when the input gate 34 is ON. However, if it is OFF, control is performed so as not to update. When the control processor 19 has not set the process execution designation via the external control device interface 45, the image selection unit 41 is fixed to the output of the image memory 32.

[0007]

Since the conventional surveillance camera device is configured as described above, even if the surroundings become dark, even if the high-sensitivity color camera 6 is used, the darkness that can be imaged is low. There was a limit, and an image could not be obtained if the surroundings were darker than this limit. For this reason, the projector 10 and the high-sensitivity color camera 6 having an irradiation range that includes the field of view of the high-sensitivity color camera 6 at a required zoom ratio of the electric zoom lens 5 are often used in combination. However, when the light emitter 10 is applied, the intruder naturally recognizes that the intruder is being monitored, so that the intruder always escapes out of the irradiation range of the light emitter 10, thereby making it difficult for the intruder to find himself.

On the other hand, the high-sensitivity color camera 6 used in the conventional surveillance camera apparatus is automatically sensitized when the surroundings become dark in a wide area where the lighting facilities are scarce (no noise is overall). Images can be obtained with a small amount of light without using the light projector 10 by reducing the display interval of the images (moving objects can be seen as trailing,
The image looks like frame advance. ) Function. However, when such a function is activated, it is difficult to detect an intruder using the image processing device b23, and thus, automatic monitoring using the image processing device b23 is limited to daytime operation.

Further, the conventional surveillance camera device is only for detecting and tracking an intruder. For example, fire detection and the like use another detection device in combination.

Further, as described above, the high-sensitivity color camera 6 used in the conventional surveillance camera apparatus is automatically sensitized when the surroundings are darkened (images in which noise is generally low). ), And a function of obtaining an image with a small amount of light by lowering the display interval of the image (a moving object looks like trailing or becomes an image like frame advance). When such a function is operated, it is very difficult to focus on a captured image. In particular, when it is necessary to quickly identify the monitoring target (for example, the number of a stopped car, etc.), it is necessary to point the optical axis of the high-sensitivity color camera 6 at the monitoring target and quickly focus on the monitoring target. In some cases, necessary information cannot be read.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and detects and tracks an intruder who is trying to enter in a darkened state without noticing, and if necessary, controls a projector. A surveillance camera device that can illuminate and obtain a clear image, can also be used for suspicious fire detection, etc., and can easily focus a high-sensitivity color camera even in dark surroundings The purpose is to get.

[0012]

According to a first aspect of the present invention, there is provided a surveillance camera apparatus comprising: a wide-angle lens for collecting infrared rays; a first camera for obtaining an image from the infrared rays collected by the wide-angle lens; A first turntable for rotating the camera, a first angle detector for detecting an optical axis direction of the first camera at an angle from a reference position, a zoom lens with a variable zoom ratio, and the zoom lens A second camera for obtaining an image from the image condensed by the second camera, a second turntable for rotating the second camera, and detecting an optical axis direction of the second camera at an angle from a reference position A second angle detector, a light projector for projecting light in the visual field direction of the second camera, and an intruder detected from an image obtained by the first camera, and the position and size of the detected intruder An image processor for extracting detection information having a speed and a moving speed; Based on the extracted detection information and the angles obtained by the first and second angle detectors, the field of view of the second camera is directed toward the intruder having the field of view of the first camera, A control processor for controlling the second turntable to cause a second camera to track the intruder, images of the first camera and the second camera supplied from the image processor, and the extraction And a display for displaying the detected detection information, and means for driving the zoom lens and the light projector based on the extracted detection information for zooming and lighting.

In the surveillance camera device according to a second aspect, the control processor is arranged such that the detected intruder is located at a predetermined position in the image of the first camera based on detection information from the image processor. The optical axis of the second camera is set at the predetermined position in the image of the first camera based on the function of tracking the first camera and the angle obtained by the first angle detector. Has the function of tracking the second camera so as to be located at

According to a third aspect of the present invention, there is provided a surveillance camera device comprising: a first image / control signal line repeater for multiplexing an image obtained from the image processing device and the second camera with the detection information signal; A first antenna having a function of transmitting a multiplexed signal from one image / control signal concentrator repeater and having a receiving function, and a second antenna transmitting and receiving a radio wave to and from the first antenna. Distributing the multiplexed signal received by the second antenna into the image and the detection information, supplying the image to the display, and supplying the detection information to the control processor. And the second image / control signal line repeater transmits the control signal generated by the control processor in accordance with the detection information to the second antenna. The first image / control signal concentrator repeater has a function of supplying the control signal transmitted from the second antenna and received by the first antenna to the first turntable, It has a function of supplying to the second turntable.

According to a fourth aspect of the present invention, in the surveillance camera device, the display unit displays the other image in one of an image obtained from the second camera and an image obtained from the first camera. Inset display is performed.

According to a fifth aspect of the present invention, there is provided a surveillance camera device, comprising: a distance measuring device for obtaining a distance from the second camera to an intruder;
A zoom ratio detector that detects a zoom ratio of the zoom lens, a zoom ratio of the zoom lens, and an operation device that can operate lighting of the light projector, the display device includes an image of the first camera, The control processor has a function of superimposing and displaying a display frame whose size is set based on the zoom ratio detected by the zoom ratio detector and the size of the detected intruder, When the lighting of the light projector is instructed from, based on a zoom ratio detected by the zoom ratio detector and a distance to the intruder, a function of controlling in advance to adjust the focus of the zoom lens is provided. is there.

According to a sixth aspect of the present invention, there is provided a surveillance camera device, comprising: a GPS receiver for acquiring a self-position; a portable terminal for a security officer having a map display terminal; And a map display unit, wherein the map display unit is obtained by the security guard mobile terminal and obtained by the control processor and the position of a security guard obtained through the wireless device. The map display terminal has a function of displaying the position of the intruder over the map, and the map display terminal has a function of displaying a map based on the map content displayed on the map display unit via the wireless device. is there.

A surveillance camera device according to a seventh aspect of the present invention includes a flame detection filter for extracting only an infrared wavelength corresponding to a flame from the image of the first camera.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a block diagram showing Embodiment 1 of the present invention. In the drawing, reference numerals 5 to 7 and 10 to 17, 19, 20, and 23 are the same as those of the conventional apparatus. 1 is a wide-angle infrared lens for condensing infrared rays, 2 is an infrared camera that outputs the infrared rays condensed by the wide-angle infrared lens 1 as an image signal in real time, and 3 is an electric motor that turns the infrared camera 2 up / down / left / right. The turntables a and 4 detect the direction (two directions, up and down / left and right) of the electric turntable a3 at an angle from a reference position, and the turntable angle detectors a and 8 detect the direction of the high-sensitivity color camera 6. The turntable angle detectors b and 9 for detecting the direction (two directions, up / down / left / right) of the electric turntable b7 to be changed from the reference position, determine the zoom ratio of the electric zoom lens 5 and the extension amount of the zoom lens. The zoom ratio detector 22 for measuring and detecting is provided with an image processing device a22 for detecting an intruder or the like from an image signal output from the infrared camera 2, and the image processing / control signal concentrating repeater b16 is provided for the image processing device a22. A monitor b for displaying an image from the infrared camera 2 to be distribution output.

Next, the operation will be described from the flow of the image signal. Since the infrared camera 2 is a camera that detects infrared light, no light is required to obtain an image. Utilizing this characteristic, the image of the subject collected by the wide-angle infrared lens 1 and input to the infrared camera 2 is formed into an image by the infrared camera 2 and sent to the image processing device a22. On the other hand, the subject condensed by the electric zoom lens 5 and captured by the high-sensitivity color camera 6 is formed into an image by the high-sensitivity color camera 6 and sent to the image processing device b23. Both the infrared camera 2 and the high-sensitivity color camera 6 have an electric turntable a4 for viewing an arbitrary direction,
b8, and these two turntables are normally controlled by the control processor 19 so as to face in the same direction.
Automatic monitoring of intruders is performed. At this time, since the wide-angle infrared lens 1 is attached to the infrared camera 2, the range to be monitored is as shown in FIG. 2, and the field of view of the high-sensitivity color camera 6 exists within the field of view of the infrared camera 2. (FIG. 3
2 shows an example of a video image of the infrared camera 2. F, B, R,
The arrow L is an intruder moving direction marker attached by the control processor 19, which blinks the intruder moving direction marker detected during automatic monitoring of the intruder to call attention to the operator. The range A in the figure corresponds to the field of view of the high-sensitivity color camera 6. In the daytime, the intruder can be automatically monitored only by the high-sensitivity color camera 6 fixed at an arbitrary angle of view without using the infrared camera 2 and the image processing device a22. The image of the subject imaged by the camera 6 is converted into an image signal by the image processing device b23.
Sent to Each of the image processing devices a22 and b23 analyzes the transmitted image signal, detects an intruder, an invading vehicle, and the like by a method described in the description of FIG. , Speed, etc., the intruder position is overlaid on the image signal, and the detection result is sent to the image / control signal line repeater a11 as a detection information signal. The image / control signal line repeater a11 frequency-multiplexes the image signal and the detection information signal, and
Send to 2. The wireless transmission device a12 modulates the signal sent from the image / control signal concentrator repeater a11 to create a high-frequency signal mixed with a carrier wave. This high-frequency signal is converted into a radio wave by the antenna a13, transmitted in the air, and received by the antenna b14. Antenna b14
The radio wave received at is converted into a high-frequency signal and input to the wireless transmission device b15. The radio transmission device b15 demodulates this high-frequency signal and returns it to a frequency-multiplexed image / control signal, and then sends the image / control signal to the image / control signal line repeater b16. Image control signal concentrator repeater b
Reference numeral 16 separates the multiplexed image / control signal, and the image of the high-sensitivity color camera 6 in the image signal is displayed on a monitor a17.
Then, the image from the infrared camera 2 is displayed on the monitor b18. By using two cameras, a clear image can be obtained by the high-sensitivity color camera 6 in the daytime, and the infrared camera 2 that visualizes infrared rays radiated / reflected by an object at night regardless of the surrounding brightness. Intruder in the dark using
It is possible to detect a vehicle or the like and obtain a thermal image thereof. Further, when an intruder / vehicle or the like is detected as a result of the intruder automatic monitoring, the intruder can be automatically tracked using the infrared camera 2 regardless of day or night. In this case, the image from the infrared camera 2 is input to the image processing device a22, and the image processing device a22
At 22, the intruder is detected in the same way as the image processing device b23 in the case of the above-mentioned automatic monitoring of the intruder during the day, and the position,
Besides detecting the size, especially the direction and speed of movement,
The electric turntable a3 is operated so that the infrared camera 2 tracks the intruder / vehicle. In this case, the image processing device b2
3 is not used.

Next, the flow of the control signal will be described.
The operator inputs to the control processor 19 via the operation device 20 instructions for switching operations such as automatic monitoring of intruders and automatic tracking, and instructions for controlling each device during manual monitoring. Based on this instruction, the control processor 19 creates a control signal for controlling each device and sends it to the image / control signal line repeater b16. Image / control signal line repeater b
16 sends the transmitted control signal to the wireless transmission device b15. The wireless transmission device b15 modulates the control signal to a frequency different from that of the radio wave transmitted from the antenna a13 to the antenna b14, and sends the modulated signal to the antenna b14. The antenna b14 converts a high-frequency signal received from the wireless transmission device b15 into a radio wave, and transmits the radio wave to the antenna a13. The antenna a13 converts the received radio wave into a high-frequency signal and sends it to the wireless transmission device a12. In the wireless transmission device a12, the antenna a13
The control signal is demodulated from the high-frequency signal sent from
The control signal is sent to the concentrator repeater a11. The image / control signal concentrator repeater a11 transfers the control signal to each device according to its content. For example, in the case of the electric zoom lens 5, control of telephoto / wide-angle and aperture and focus is performed. In the case of the high-sensitivity color camera 6, sensitivity switching is performed.
In the case of b7, the head swings up, down, left and right, and in the case of the projector 10, the on / off of the light is controlled. Further, the angle information signals of the turntable angle detectors a4 and b8, the zoom ratio information signal of the zoom ratio detector 9, and the image processing devices a22 and b23
The detection information signal such as the intruder detection and the position, the moving direction, etc., output from the
After being transmitted to the control signal line repeater b16, it is transmitted to the control processor 19. In particular, in the case of the intruder automatic tracking, the control processor 19 obtains the angular velocity for rotating the electric rotating table a3 from the moving speed of the intruder / vehicle based on these signals, and the same direction as the moving direction of the intruder / vehicle. Next, the electric rotary table a3 is moved so that the subject is substantially at the center of the field of view of the infrared camera 2. At this time, the electric turntable b7 is turned on the rotation angle detector a based on the angle information of the rotation angle detector b8.
The high-sensitivity color camera 6 and the infrared camera 2 are directed in the same direction by controlling them so as to be at the same position as the angle from 4, and the intruder is tracked by continuously operating them.
At the time of automatic tracking of the intruder, the control processor 19 controls the infrared camera 2 and the high-sensitivity color camera 6 so that they face in one direction, but they are independent of each other by a manual operation instruction from the operator via the operation device 20. It is also possible to control the turntables a3 and b7. As described above, during the day, the operator performs manual monitoring based on the image of the high-sensitivity color camera 6 or performs automatic monitoring of the intruder by the image processing device b23 while fixing the direction and the angle of view, and Is detected, an intruder is automatically tracked by the infrared camera 2. In the nighttime, since the infrared camera 2 does not need a light, manual monitoring by the infrared camera 2 without being noticed by the intruder or automatic monitoring of the intruder by the image processing device a22 by fixing the direction and the angle of view are fixed. It can be carried out. However, since the image viewed by the infrared camera 2 is an image of infrared rays radiated / reflected from an object, it is difficult to determine a human face, a car number, and the like. Therefore, when the surroundings become dark from evening to night, the operator inputs an automatic night monitoring instruction from the operating device 20 to the control processor 19 to capture the subject at the center of the infrared camera 2. The electric turntable a3 is controlled as described above. (At this time, the high-sensitivity color camera 6 normally faces the center of the field of view of the infrared camera 2 unless otherwise specified. That is, the optical axis of the high-sensitivity color camera 6 is directed toward these determination targets.) When reading information on the subject, the projector 10 is turned on toward the subject according to an instruction from the operator, and a color image is obtained with the high-sensitivity color camera 6. From this image, detailed information such as the invader's human face and the car number is obtained. At this time, by using the wide-angle infrared lens 1 for the infrared camera 2 and the electric zoom lens 5 for the high-sensitivity color camera 6, the weak points of each of the infrared camera 2 and the high-sensitivity color camera 6 are compensated for, and a useless zoom lens is used. It is possible to realize a day and night surveillance camera device with a more appropriate component configuration without using a class or a zoom ratio detector and a controller related thereto. In addition, since the tracking of the intruder / vehicle is automatically performed using the infrared camera 2, the operator needs to
After performing the zooming and the focus adjustment of the high-sensitivity color camera 6, the turning on / off of the light projector 10 can be operated to obtain a clear image.

Embodiment 2 FIG. FIG. 4 is a block diagram showing a second embodiment of the present invention, in which the monitor b18 in the first embodiment is removed, the number of monitors is reduced to one, and the image from the infrared camera 2 and the image from the high-sensitivity color camera 6 are combined. This is provided with an image synthesizing unit 21 that performs the processing.

Next, the operation will be described. In Embodiment 2 of the present invention, the image / control signal concentrator repeater b16
An image from the infrared camera 2 and two images from the high-sensitivity color camera 6 output from the camera are displayed in a small child screen at one corner of the parent screen as shown in FIG. 5, and the parent-child relationship between the two images can be arbitrarily determined. By enabling the switching, the number of monitors to be monitored can be reduced from two to one, and the situation can be accurately grasped by switching the image of interest to the parent screen.

Embodiment 3 FIG. FIG. 6 is a block diagram showing a third embodiment of the present invention, in which a laser distance measuring device 24 for measuring a distance to an object is provided in addition to the second embodiment.

In the third embodiment, similarly to the second embodiment, both the infrared camera 2 and the high-sensitivity color camera 6 have a function of automatically tracking an intruder, and irradiate a pulsed laser to a target object. A laser distance measuring device 24 for obtaining a distance to a target object from a time difference between the laser pulse and a light-receiving laser pulse irregularly reflected on the surface of the object is mounted coaxially above the high-sensitivity color camera 6 to measure a distance to an intruder in real time. This distance information is stored in the image / control signal line repeater a1.
1 and transmitted to the control processor 19. The control processor 19 obtains the focal position based on the distance information and the zoom ratio from the zoom ratio detector 9, and controls the electric zoom lens 5 so that the focal point of the electric zoom lens 5 attached to the high-sensitivity color camera 6 will be perfect. Control. This allows the high-sensitivity color camera 6 to always keep track of the intruder when in focus, even when the surroundings are dark, and when the projector 10 is turned on, it is possible to immediately identify the intruder's human face, You can read the number of the fleeing car. When the operation device 20 gives an instruction to turn on the projector 10, the control processor 19 sends the
Before turning on 0, the focus of the electric zoom lens 5 is automatically adjusted in advance.

Embodiment 4 7 and 8 are block diagrams showing a fourth embodiment of the present invention. FIG. 7 shows the relationship between the monitoring camera and the central aggregating unit 11b and the operation unit 16b, and FIG. The relationship with the mobile terminal device 29b for security guards is shown. In the fourth embodiment, in addition to the third embodiment, a GPS receiver 27 possessed by each guard, a wireless device b28 such as a mobile phone, and a map display terminal 29 are provided. The map of the monitoring range, the range currently monitored by each camera on the map, the position of the intruder at the time of detecting the intruder, and the GPS receiver 27 of each security guard are measured by the wireless device 2
Wireless device a 26, such as a mobile phone, which receives the position information of the security guard output via
And a map display unit 25.

In the fourth embodiment, the turntable angle detector a
4, a horizontal monitoring range H is obtained from the camera direction in the horizontal plane obtained from b8 and the angle of view of the electric zoom lens 5 obtained from the zoom ratio detector 9. Further, the monitoring range V in the vertical direction can be obtained from the camera direction in the vertical plane obtained from the turntable angle detectors a4 and b8 and the angle of view of the electric zoom lens 5 obtained from the zoom ratio detector 9.
In addition, the position of the intruder must be always
High sensitivity color camera 6 on the map because it is near the center
The intruder mark is displayed at the center of the angle of view. On the other hand, the guards arranged at the site include a GPS receiver 27 and a wireless device b28 such as a mobile phone connected thereto, and a map display terminal 29.
And always transmits its own position information obtained from the GPS receiver 27 to the place where the operator is located via a wireless device b28 such as a mobile phone. This radio wave is transmitted to a wireless device a such as a mobile phone.
26, and the position information of the corresponding security guard is also displayed on the map display unit 2.
5 is displayed. The position information on the map is transferred and displayed on the map display terminal 29 of each guard via the wireless devices a26 and b28 such as mobile phones. (FIG. 9
Shows an example of information displayed on the map display terminal 29. This allows the operator to visualize the monitoring position and the position of the intruder not only on the image but also on the map, providing information for determining the escape route and allocating personnel. it can. In addition, the guard who is located can understand the movement of the intruder, so that the escape route can be grasped and effective security such as proactive movement becomes possible.

Embodiment 5 FIG. 10 is a block diagram showing a fifth embodiment of the present invention.
A fire detection filter 30 is provided.

In the fifth embodiment, the infrared camera 2 and the wide-angle infrared lens 1 transmit only the vicinity of the peak wavelength of the flame (near 4.2 μm) out of the infrared light collected by the wide-angle infrared lens 1. The fire detection filter 30 which can be inserted under control is inserted and attached. When this fire detection filter 30 is used, only the flame can be captured as an image. Therefore, by intermittently using the fire detection filter 30 in conjunction with the image processing device a22 during monitoring, it is possible to detect only an intruder. No suspicious fire is detected.

[0030]

According to the first to third aspects of the present invention, a high-sensitivity camera equipped with an electric zoom lens and an infrared camera equipped with a wide-angle lens are provided. By processing the image, detecting the intruder in the image and detecting the direction of its movement, and controlling the intruder detected based on the signal to be always within the field of view of the high-sensitivity camera, the surroundings are dark and high. In a situation where images are difficult to obtain with a sensitivity camera, surveillance can be performed without notice by an intruder. In addition, because it automatically tracks the invaders that it finds, the operator can read the invader's human phase, the number of the car, etc. with a high-sensitivity camera, and further adjust the focus of the high-sensitivity camera and use the high-sensitivity color camera. You can concentrate on turning on / off the mounted projector.

According to the fourth invention, a plurality of images (for the infrared camera and for the high-sensitivity camera) are displayed on a single display as a parent-child screen display, so that the operator monitors the display monitor. This has the effect of reducing the number.

According to the fifth aspect of the present invention, a distance measuring device for measuring and outputting the distance to the target is further provided, so that even if the surroundings are dark and an image cannot be obtained with a high-sensitivity camera, the distance to the intruder can be reduced. Since the distance is measured and the focus can be adjusted based on the distance, the high-sensitivity camera is always focused on the intruder. For this reason, it is not necessary to focus after turning on the light emitter, and there is an effect that an intruder or the like is not given a space to escape.

[0033] According to the sixth invention, a GPS receiver and a map display terminal connected to a wireless device possessed by each guard are further provided.
And a map display section managed by the operator. The position of each guard obtained by the GPS receiver is collected via a wireless device, a map of the monitored area is displayed on the map display section, and the current position is displayed on the map. By superimposing the surveillance area and the position of the intruder and the position of each guard, it is possible to provide the operator with an understanding of the escape route and the judgment information for deploying the guard. is there. In addition, by transmitting each position information on this map to the map display terminal of each guard via wireless device, the guards can grasp the escape route of the intruder, so that It becomes possible to take such a measure.

According to the seventh aspect of the present invention, a fire detection filter that transmits only infrared rays caused by a flame is provided, and by using this filter, there is an effect that a suspicious fire can be monitored within a monitoring range.

[Brief description of the drawings]

FIG. 1 is a diagram showing Embodiment 1 of a surveillance camera device according to the present invention.

FIG. 2 is a diagram showing Embodiment 1 of the surveillance camera device according to the present invention.

FIG. 3 is a diagram showing Embodiment 1 of the monitoring camera device according to the present invention.

FIG. 4 is a diagram showing a surveillance camera device according to a second embodiment of the present invention.

FIG. 5 is a diagram showing a surveillance camera device according to a second embodiment of the present invention.

FIG. 6 is a diagram showing a third embodiment of the monitoring camera device according to the present invention.

FIG. 7 is a diagram showing a surveillance camera device according to a fourth embodiment of the present invention.

FIG. 8 is a diagram showing Embodiment 4 of the surveillance camera device according to the present invention.

FIG. 9 is a diagram showing a fourth embodiment of the surveillance camera device according to the present invention.

FIG. 10 is a diagram showing a surveillance camera device according to a fifth embodiment of the present invention.

FIG. 11 is a diagram showing a conventional surveillance camera device.

FIG. 12 is a diagram illustrating a conventional image processing apparatus.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Wide-angle infrared lens, 2 Infrared camera, 3 Electric turntable a, 4 Turntable angle detector a, 5 Electric zoom lens, 6 High-sensitivity color camera, 7 Electric turntable b, 8
Turntable angle detector b, 9 Zoom ratio detector, 10 Projector, 11 Image / control signal concentrator repeater a, 12 Wireless transmission device a, 13 Antenna a, 14 Antenna b, 15
Wireless transmission device b, 16 image / control signal line relay device b, 17 monitor a, 18 monitor b, 19 control processor, 20 operation device, 21 image synthesis unit, 22
23 image processing device a, 23 image processing device b, 24 laser ranging device, 25 map display unit, 26 wireless device a such as a mobile phone, 27 GPS receiver, 28 wireless device b such as a mobile phone, 29 map display terminal, Reference Signs List 30 fire detection filter, 31 image input interface, 32 image memory, 33 image smoothing unit a, 34 input gate, 35
Reference image memory for difference, 36 Image smoothing unit b, 37
ALU, 38 binarization coefficient determination unit, 39 image binarization unit, 40 pixel count unit, 41 pixel selection unit, 42
Pattern overlay memory, 43 image output interface, 44 processor, 45 external controller interface, 46 limit switch.

Claims (7)

[Claims] A wide-angle lens for collecting infrared light; a first camera for obtaining an image from the infrared light collected by the wide-angle lens; a first turntable for rotating the first camera; A first angle detector for detecting an optical axis direction of the first camera at an angle from a reference position, a zoom lens having a variable zoom ratio, and a second camera for obtaining an image from an image collected by the zoom lens A second turntable for rotating the second camera, a second angle detector for detecting an optical axis direction of the second camera at an angle from a reference position, and a second angle detector for the second camera. A light projector for projecting light in the visual field direction, and an image processor for detecting an intruder from an image obtained by the first camera and extracting detection information having the detected position, size and moving speed of the intruder And the extracted detection information and the first and second angle detections. The second camera is directed to the intruder having the field of view of the second camera in the field of view of the first camera, based on the angle obtained by the output device, so that the second camera tracks the intruder. A control processor for controlling the second turntable; and a display for displaying images of the first camera and the second camera supplied from the image processor and the extracted detection information, A surveillance camera device comprising means for driving a lens and the light projector for zooming and lighting based on the extracted detection information. 2. The control processor according to claim 1, wherein the first processor is configured to control the first intruder based on detection information from the image processor such that the detected intruder is located at a predetermined position in an image of the first camera. The second camera is moved so that the optical axis of the second camera is located at the predetermined position in the image of the first camera based on the function of tracking the camera and the angle obtained by the first angle detector. The surveillance camera device according to claim 1, further comprising a function of tracking the camera. 3. A first method for multiplexing the detection information signal with an image obtained from the image processing device and the second camera.
An image / control signal concentrator repeater, a first antenna having a function of transmitting and receiving a multiplexed signal from the first image / control signal concentrator repeater,
A second antenna that transmits and receives radio waves to and from the antenna, distributes the multiplexed signal received by the second antenna to the image and the detection information, and displays the image on the display. And a second image / control signal concentrator repeater for supplying the detection information to the control processor, wherein the second image / control signal concentrator repeater controls the control in accordance with the detection information. Having a function of supplying a control signal generated by a processor to the second antenna, wherein the first image / control signal concentrator repeater is transmitted from the second antenna and received by the first antenna 2. A function of supplying the control signal to the first turntable and the second turntable.
3. The surveillance camera device according to any one of the above items 4. The display device according to claim 1, wherein one of an image obtained from the second camera and an image obtained from the first camera is inserted into another image and displayed. The monitoring camera device according to claim 1. 5. A distance measuring device for obtaining a distance from the second camera to an intruder, a zoom ratio detector for detecting a zoom ratio of the zoom lens, a zoom ratio of the zoom lens,
And an operating device that can operate the lighting of the floodlight,
The display unit superimposes a display frame whose size is set based on the zoom ratio detected by the zoom ratio detector and the detected size of the intruder on the image of the first camera. The control processor has a function to perform the zooming in advance based on a zoom ratio detected by the zoom ratio detector and a distance to the intruder when the operation device instructs to turn on the projector. The surveillance camera device according to any one of claims 1 to 4, wherein the surveillance camera device has a function of controlling focus adjustment of a lens. 6. A mobile terminal for a security officer having a GPS receiver for acquiring a self-position and a map display terminal, a wireless device for transmitting and receiving signals to and from the mobile terminal for a security officer by radio, and a map display unit And the map display unit superimposes, on a map, the position of the guard obtained by the guard mobile terminal and obtained through the radio, and the position of the intruder obtained by the control processor. The map display terminal has a function of displaying a map based on the map content displayed on the map display unit via the wireless device. The surveillance camera device according to any one of the above. 7. The surveillance camera device according to claim 1, further comprising a flame detection filter for extracting only an infrared wavelength corresponding to a flame from the image of the first camera.