JPS5879393A - Monitor television - Google Patents

Abstract

PURPOSE:To notice a monitor screen by a monitor personnel, by giving an alarm, only when a mobile body exists within a range to be noticed in the monitor screen. CONSTITUTION:An ITV camera 1 is fixed and picks up a specified range, and its picture is reproduced on a monitor television 2 at all times. A screen analyzer 3 stores signals from the ITV camera 1 for a prescribed time and gives an output to driven an alarm 4 when a mobile body exists within the range of left side picture sectioned with A-B line. The data analysis like this can be performed with the pattern recognizing technique consisting of a CPU, a data storage memory and a data processing memory. The pattern screen stored in the preceding time and that received this time are compared and an alarm instruction is given when they are discident.

Description

[Detailed Description of the Invention] The present invention relates to a monitor television device, and more specifically, it relates to a monitor television device having an abnormality detection function, which is useful for station platform monitoring, bank nighttime monitoring, etc. be.

Conventional monitor television equipment of this type requires the observer to constantly look at the monitor screen, and if there are multiple monitor screens, only a limited number of screens can be viewed at the same time, making complete monitoring impossible. Ta. In addition, the need to constantly look at the monitor screen caused a serious problem of fatigue for the monitors.

Therefore, this invention was made with attention to the above-mentioned circumstances, and an alarm is issued only when there is a moving object within the gaze area on the monitor screen. It is an object of the present invention to provide a monitor television device that solves the conventional problems as described above.

The present invention will be described below with reference to FIG. 1 and one embodiment shown in FIG. monitor telepico that projects images, and ITV
A screen analyzer 3 which analyzes the signal from the camera 1 as data and issues a warning signal when an abnormal screen appears is connected in parallel. An alarm device is connected to the screen analysis device 3. S is a monitor TV activation signal that can be used for energy saving.

FIG. 2 is an example of a monitor screen by the monitor television device of FIG. 1, showing a station platform screen, and the left side separated by line A-B is the screen portion to be watched.

Next, the operation will be explained. The I'rV camera l is fixed and photographs a predetermined range as shown in FIG. 1, and the image is always displayed on the monitor telepic. The screen analysis device 3 stores the signal applied from the ITV camera 1 for a certain period of time, and when a moving object is detected within the left image range divided by A-B@, it emits an output to drive the alarm pavilion. For such data analysis, publicly known techniques used in bang recognition and the like can be used as appropriate, and the device can be configured with a CPU, a data storage memory, a data processing memory, and the like. To briefly explain this, the previous time (for example, 1
It compares the bang screen that was stored a few seconds ago with the bang screen that was received this time, and issues an alarm command if there is a discrepancy. In this case, if the processing program is sophisticated, it may be possible to issue an alarm command when the amount of movement of the image exceeds a certain value.

The monitor TV activation signal S is used for energy saving, etc., and the monitor TV is always turned off.
When an abnormality is detected, a monitor TV-〇 activation signal is output.

As described above, this invention: (a) There is no need for the observer to constantly watch the monitor screen. (b) One monitor can monitor multiple TV monitors. After a tiger abnormality is detected, a human recognizes and judges it again on the monitor screen, so there is no misidentification. )
By displaying only the camera image of abnormality detection on the monitor television, the number of monitor televisions for the ITV cameras can be minimized. (E) It is possible to start the monitor TV only when necessary, which enables energy saving. There are many effects such as.

In addition to the above, as another example, it can be used as a security TV in a bank, for monitoring when the store is unoccupied, such as after closing, for detecting moving objects, and especially when used in combination with an infrared camera during running. can also be considered.

It is also possible to project the top of a high-rise building and detect falling dangerous objects.

Furthermore, if a program is created that issues an alarm only when a specific button on the screen is pressed or the speed exceeds a certain level, it can be used to detect violations of vehicle speed limits.

Furthermore, the number of ITV cameras can be reduced by using a rotating ITV camera, storing images at each predetermined angle of rotation, and comparing each image with the previously captured image.

[Brief explanation of drawings]

FIG. 1 is a wiring diagram of an embodiment of the present invention, and FIG. 2 is a diagram showing an example of a monitor image. Figure 1 A ← B 1, ν Chief Minister's Palace 1. Showing 11 results Patent application Shoj4-/911!9
No. 2 Name of the invention Mineta TV device: 3. To Hitoshi Katayama, representative of the person making the amendment (1) Column for detailed explanation of the invention in the description Contents of the amendment The description is corrected as follows.

Claims (1)

[Claims] (1) An ITV camera that captures images in a predetermined range;
A monitor television that receives signals from the ITV camera and projects a monitor image, analyzes the contents of the monitor image, analyzes data, and detects when a moving object exceeding a certain speed is within a predetermined range of the monitor image. 1. A monitor television device comprising: a screen analyzer that issues a warning signal when (g) The monitor television device according to claim 1, wherein an activation signal is applied from the screen analysis device to the monitor television when an abnormality is detected. (3) A monitor or television device according to claim 1, which uses an ITV camera in combination with an infrared photographing means. (/I) The monitor television device according to claim 1, wherein the ITV camera is of a rotating type.