JPH054058U - Infrared monitoring device - Google Patents

Abstract

(57) [Summary] [Object] To obtain an infrared monitoring device capable of recognizing the size of a monitoring target by obtaining distance information by a radar in monitoring a target at night using infrared imaging. [Structure] An image signal from an infrared imaging unit 1 is processed by a signal processing unit 2.
The image signal transferred to and processed by is displayed on the display unit 3 as an infrared image. Further, the image signal from the signal processing unit 2 is transferred to the image signal processing unit 4, where the pixel number of the monitoring target is given, and transferred to the target size calculation unit 5.
The distance information given from the radar transmitting / receiving unit 6 and the radar signal processing unit 7 is also transferred to the target size calculating unit 5. The target size calculation unit calculates the target size and imposes this target size on the infrared image. [Effect] By displaying the size of the target which cannot be seen in the infrared image, effective target monitoring and identification can be performed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  This invention is an infrared monitoring device used for target identification of ships, aircraft, etc. It is about the table.

[0002]

[Prior art]

  FIG. 3 is a block diagram showing the operation principle of a conventional infrared monitoring device. Figure smell 1, 1 is an infrared image pickup unit, 2 is a signal for processing a video signal from the infrared image pickup unit. The signal processing unit 3 is a display unit for displaying the video signal from the signal processing unit. Also, FIG. 4 is an example of a display screen in a conventional infrared monitoring device. In the figure, 8 is moni Screen 9 is an image of the monitoring target.

[0003]   Next, the operation will be described. In the infrared imaging unit 1, aim at the target to monitor the visual axis Then, the infrared lens collects and forms an image of infrared light, and the detection part The incident light of (element) is photoelectrically converted and the image signal is output to the signal processing unit 2. Signal processing unit 2 Then, the image signal from the infrared imaging unit is received and the pixel-to-pixel correction unique to the light receiving element is performed. Alternatively, the image signal subjected to signal processing such as positive / negative inversion and gain adjustment is displayed on the display unit 3. Output to. The display unit 3 displays the image signal from the signal processing unit 2 on the monitor screen 8. To do. At this time, the image 9 of the monitoring target is displayed on the monitor screen 8.

[0004]

[Problems to be solved by the device]

  The conventional infrared surveillance device is configured as above, so it is It is possible to clearly recognize the appearance of the target that could not be recognized at night. But Naga In order to identify the monitoring target, the appearance of the target can be recognized, but the size of the target can be confirmed. There was a problem that it did not exist.

[0005]   This invention was made to solve the above problems, and the target size Is displayed on the display to obtain a more effective target monitoring and target identification device. The purpose is to

[0006]

[Means for Solving the Problems]

  The target monitoring method in this invention is a radar transmission / reception for obtaining target distance information. Unit and radar signal processing unit, image signal processing unit for obtaining the target number of pixels, target distance In addition to the target size calculation unit that calculates the target size from the separation information and the number of pixels Therefore, more effective target monitoring and target identification is performed.

[0007]   In addition, the target monitoring method in this invention is a laser for obtaining target distance information. Distance measuring unit, image signal processing unit for obtaining the target number of pixels, target distance information and the number of pixels More effective by adding a target size calculator that calculates the target size from The objective is to monitor and identify the target.

[0008]

[Action]

  The infrared monitoring device according to the present invention is provided with target distance information obtained by a radar and By calculating the target size from the target number of pixels obtained by image processing, More effective target monitoring and target identification based on the same operating principle as conventional infrared monitoring devices This is an advantage that can be realized.

[0009]   In addition, the infrared monitoring device according to the present invention uses the target distance obtained by the laser. By calculating the target size from the information and the target number of pixels obtained by image processing, Therefore, with the same operating principle as the conventional infrared monitoring device, more effective target monitoring and visual The advantage is that the labeling can be realized.

[0010]

【Example】

Example 1.   An embodiment of the present invention will be described below with reference to the drawings. Fig. 1 shows one implementation of this invention. It is a block diagram which shows the operation principle of an example. In the figure, 1-3 are the same as the conventional device belongs to. An image signal processing unit 4 receives an image signal from the signal processing unit 2 as an input signal. Then, the output signal is transferred to the target size calculation unit 5. 6 is a radar transmitter / receiver unit The received signal from the target is input, and the output signal is transferred to the radar signal processing unit 7. 7 is The radar signal processing unit receives the radar signal from the radar transmission / reception unit 6 as an input signal and outputs it. The signal is transferred to the target size calculator 5. Reference numeral 5 is a target size calculation unit, which is an image signal processing unit. The signals from the processing unit 4 and the radar signal processing unit 7 are input, and the output signals are transferred to the display unit 3. Will be sent. Further, FIG. 2 is an example of a display screen showing an embodiment of the present invention. Figure smell 8 to 9 are the same as the conventional device. 10 monitors the size of the monitoring target This is an example of superimposing on the screen 8. In addition, a in the figure is the horizontal of the monitoring target. The vertical dimension, b, indicates the vertical dimension of the monitoring target.

[0011]   Next, the operation will be described. The operation principle of 1 to 3 is the same as that of the conventional device. Belief The image signal from the signal processing unit 2 is transferred to the image signal processing unit 4. Image signal processing unit 4 Then, by the image signal processing, the number Ga of pixels in the horizontal direction and the number of pixels in the vertical direction of the monitoring target Gb is converted, and Ga and Gb are transferred to the target size calculation unit 5. Radar transmission and reception The receiving unit 6 receives the radar signal returned from the monitoring target, and the radar signal processing unit 7 receives the radar signal. Forward the radar signal to. The radar signal processing unit 7 processes the radar signal and monitors the target. The distance signal R up to is transferred to the target size calculator 5. In the target size calculation unit 5, The number of pixels G in the horizontal and vertical directions of the monitoring target given by the image signal processing unit 4. a, Gb, and a distance signal R to the monitoring target provided by the radar signal processing unit 7 The horizontal dimension a and the vertical dimension b of the monitoring target are given as shown below. To be

[0012]   The viewing angles of the lens in the horizontal and vertical directions are θa and θb, respectively, and the horizontal and vertical directions. The field of view of each is Ha, Hb, the distance to the monitoring target is R, the horizontal direction, the entire device Gaa and Gbb, respectively, and the horizontal and vertical dimensions of the monitoring target are a and , B, a and b are given by the following equations.

[0013]

[Equation 1]

[0014]

[Equation 2]

[0015]   The horizontal and vertical dimensions a and b of the monitoring target given by the above equation are , Is transferred to the display unit 3 and the monitoring target size is displayed on the monitor screen 8, for example, 10. Superimposes.

[0016] Example 2.   FIG. 3 is a block diagram showing the operation principle of this embodiment. A laser distance measuring unit 11 is used instead of the radar transmitting / receiving unit 6 and the radar signal processing unit 7. Of. FIG. 1 is a block diagram showing the operating principle of an embodiment of the present invention. In the figure In addition, 1 to 3 are the same as the conventional device. 4 to 5 are the same as those in Example 1 Is. Reference numeral 11 is a laser distance measuring unit, which measures the distance to the target with a laser and outputs it. The signal is transferred to the target size calculator 5.

[0017]   In the first embodiment, the radar signal from the radar transmitter / receiver 6 is fed to the radar signal processor 7 The distance signal R to the monitoring target is transferred to the target size calculation unit 5 by processing However, in the present embodiment, instead of the radar transmitter / receiver 6 and the radar signal processor 7, The laser distance measuring unit 11 measures the distance R to the monitoring target by the laser. By transferring the distance signal R to the target size calculation unit 5, the same effect as that of the first embodiment can be obtained. Can be expected.

[0018]

[Effect of device]

  As described above, according to the present invention, the image signal processing unit and the radar transmitter are added to the conventional device. Monitoring by adding a receiver, radar signal processor, and target size calculator Obtaining the target dimensions enables effective target monitoring and identification. effective.

[0019]   Further, according to this invention, an image signal processing unit, a laser distance measuring unit, and By adding the target size calculator to obtain the size of the monitoring target, It has the effect of enabling effective target monitoring and identification.

[Brief description of drawings]

FIG. 1 is a block diagram showing an infrared monitoring device according to a first embodiment of the present invention.

FIG. 2 is an example of a display screen of the infrared monitoring device according to the first embodiment of the present invention.

FIG. 3 is a block diagram showing an infrared monitoring device according to a second embodiment of the present invention.

FIG. 4 is a block diagram showing a conventional infrared monitoring device.

FIG. 5 is an example of a display screen of a conventional infrared monitoring device.

[Explanation of symbols]

1 Infrared imaging section 2 Signal processing unit 3 Display 4 Image signal processor 5 Target size calculator 6 Radar transceiver 7 Radar signal processor 8 Monitor screen Image of 9 monitoring targets 10 Superimpose example of the size of the surveillance target 11 Laser range finder

Claims (2)

[Scope of utility model registration request] 1. In an apparatus for monitoring and identifying a target by an infrared image, an infrared image pickup section for photoelectrically converting incident light (infrared light) focused and imaged by an infrared lens to give an image signal, and this image. A signal processing unit that performs signal processing such as correction between pixels unique to the light receiving element of the signal and gives an image signal after the signal processing, and an image that gives the number of pixels in the horizontal and vertical directions of the monitoring target by processing this image signal. A signal processing unit, a radar transmission / reception unit that transmits and receives radar signals to give a radar signal, a radar signal processing unit that gives distance information of a monitoring target by processing the radar signal, distance information of this monitoring target, and the above-mentioned monitoring A target size calculation unit that calculates the size of the monitoring target from the number of pixels in the horizontal and vertical directions of the target, and the image signal from the above signal processing unit is displayed on the monitor screen, An infrared monitoring device further comprising: a display unit for superimposing the size information of the monitoring target on a monitor screen. 2. An infrared image pickup unit for photoelectrically converting incident light (infrared light) focused and imaged by an infrared lens in an apparatus for monitoring and identifying a target by an infrared image, and giving an image signal, The signal processing unit that performs signal processing such as correction between pixels unique to the light receiving element of this image signal and gives the image signal after signal processing, and the number of pixels in the horizontal and vertical directions of the monitoring target by processing this image signal An image signal processing unit for giving, a laser distance measuring unit for giving distance information to a monitoring target by measuring the distance to the target by a laser, the distance information of this monitoring target and the horizontal and vertical directions of the above-mentioned monitoring target. The target size calculation unit that calculates the size of the monitoring target from the number of pixels of the monitor, and the image signal from the signal processing unit are displayed on the monitor screen, and the size information of the monitoring target is displayed. An infrared monitoring device comprising a display unit superimposed on a Nita screen.