JP3181290B2 - TV monitor device - Google Patents

Description

The present invention relates to a television monitor device including at least a television camera, a data processing device, and at least one monitor that reproduces an image captured by the television camera. The data processing device is shaped as an electronic movement alarm that monitors the captured image electronically and issues an alarm message if the image changes.

Such a TV monitor device is already known.
For example, German Offenlegungsschrift 3,214,245 describes a video-camera-one method of checking movement in an image, in which a mark is placed on a predetermined image part in the image. It is attached. This image portion is compared to the successive images for a considerable period of time and helps to form an average brightness value so that movement in the image can be identified in such a way.

Even if it is possible to evaluate the movement on the image by appropriately evaluating the image signal, it seems difficult to omit the person who monitors the video screen. Even if the alarm message clearly indicates the method and significance of the trip, and can take the appropriate action, it would be difficult.

SUMMARY OF THE INVENTION It is an object of the present invention to form a television monitor device so as to provide a person monitoring the monitor with quick and special information about the new situation of the object to be monitored.

The purpose of the present invention is to provide a data processing device with a storage device storing a large number of patterns of image information. When an alarm message is issued, all the patterns stored in the pattern memory and the change of the captured image are changed. The comparison device performs a comparison with the portion where the pattern was formed, and furthermore, when the pattern matches one pattern, the image information is selected from the pattern memory and transmitted to the monitor, where it is used to display the corresponding pattern. It is solved by.

The pattern memory also includes a display of a number of problematic objects (eg, impact drills, pistols, hammers, knives, etc.) that are compared to the changed (= moved) part of the captured image. I have. By displaying the identified object on the monitor, the observer can quickly and clearly obtain information on a new situation of the object to be observed.

The purpose is to connect a large number of attached TV cameras to the data processing device, and to file the image information taken by each TV camera periodically in the assigned matrix memory, Select partial information and transmit it via a narrow-band transmission line to a common monitor with intermediate memory or individual intermediate memory, which is securely assigned to the corresponding TV camera. When the data processing device is provided with a storage device that stores a plurality of patterns of image information in a manner overlapping with each other and outputs an alarm message, the image taken by the television camera is changed. That part is compared with all the patterns in the storage device, and if it matches one pattern, the image information From the storage device to the common monitor or to the monitor assigned to the relevant television camera, which serves for the display of the relevant pattern, and then automatically or at the request of the other side, The problem is solved by transmitting only the image information of the matrix memory in which the change of the image has been shot to the monitor assigned to the corresponding television camera.

In particular, since the image information is transmitted in an intricate manner, a single common transmission line is sufficient, even if the partial information is transmitted from the matrix memory in a continuous overlapping manner. In the event of an emergency, or after a pattern display of the identified object, the transmission line is mobilized solely for the transmission of the image information of the television camera that captured the movement.

Advantageous forms of the invention are evident from the claims. BRIEF DESCRIPTION OF THE DRAWINGS The invention will be explained in more detail on the basis of one embodiment shown in the accompanying drawings. 1 shows a system configuration diagram of a data processing device connected to a television camera, FIG. 2 shows a system configuration diagram regarding processing of image information on a monitor side, and FIG. 3 shows distribution of television images to partial information. FIG.

The data processing device VE shown in FIG. 1 is connected to a large number of television cameras F1 to Fn that target a plurality of objects to be monitored. The high-resolution image signal output from the TV camera is simultaneously transmitted to two image sensors BW1
And sent to BW2. In the image sensor BW1, an image signal is converted into a signal for a low-resolution image display. At this time, the displayed image can clearly confirm the monitored object. The image sensor BW2 is used to convert the image signal to one for a high resolution display, which is lower than that of the image taken by the television camera F.

The image information generated by the image sensor BW1 is filed in a matrix memory BSA, and the image information of the image sensor BW2 is filed in a matrix memory BSB. That is, information of one image is filed for each preset time. In the quiet state, ie when no alarm is given, the contents of the matrix memory BSA are periodically selected and transmitted to the other side via the switching device UM and the transmission line L. The transmission speed of the transmission line is, for example, 64 per second
When k bits are used and partial information BT (see FIG. 3) of one image is transmitted for each frame (every second), for example,
After 16 seconds, the stored contents of the entire matrix memory BSA can be transmitted. This is the case when a predetermined section for each matrix memory BSA is stored in the frame. This occurs, for example, when each frame of length 64k bits is partitioned into partial frames, where
Each partial frame is firmly allocated to one matrix memory BSA, and is used for transmitting partial information.

The stored contents of the matrix memory BSA are also sent to the movement confirmation device BE. It has a matrix memory (not shown) in which previously captured images have been filed. By comparing this image with the image just taken, if there is a difference between both images, the movement can be clearly identified. As soon as the difference is confirmed, the movement confirmation device BE sends a signal to the television camera F that has taken the image whose movement has been confirmed, instead of the control device ST. In addition, the movement confirmation device BE is replaced with a control device instead of the comparison device V.
It emits a signal for the ST, which at the same time provides information about the relevant television camera F as well as its image part whose movement has been confirmed. The comparison device V continues to store the information of the corresponding image portion in a high-resolution matrix memory.
Search from the BSB and compare it with the pattern in the pattern memory MS. The pattern memory MS has a built-in foam pattern in which a large number of objects (for example, impact drill pistols, hammers, knives, etc.) are viewed from various directions. As soon as the comparison device V clearly identifies the object,
The control device ST obtains an appropriate signal from the comparison device, and uses this as a trigger to cause the switching device UM to transmit the pattern determined at the time of comparison from the pattern memory to the transmission line L after being selected. The corresponding target symbol is supplementarily filed in the pattern memory MS, and if the symbol can be clearly identified, the symbol is transmitted to the remote station via the transmission line L, for example,
Transmission as a low resolution display is likewise conceivable.

In the present invention, the remote station can send a corresponding request signal to the data processing device VE. Specifically, after the transmission of the information from the pattern memory MS by the control device ST is completed, a certain time is passed to the corresponding television. It is also possible to automatically direct the high-resolution image information of the camera to the matrix memory for selection, in which case the entire capacity of the transmission line L is required for the transmission of the stored content. During this time, no image information is transmitted to other television cameras.

It is not always necessary to design two image sensors BW and two matrix memories BS for each television camera F. In comparison with the contents of the pattern memory MS, one image sensor BW and one matrix memory MS are sufficient for one television camera if the amount of information is sufficient for the sufficient resolution of the display. . In this case, after transmitting the corresponding storage contents, only the contents of the corresponding matrix memory BS are transmitted. When two matrix memories (BSA, BSB) are prepared, the contents of the matrix memory BSB are used only for pattern confirmation, and the transmission of the image information to the matrix memory storing the image information is as follows. It is equally conceivable to limit to only low resolution display degrees.

In an emergency, i.e., when the movement confirmation device BE issues a message accordingly, it sends a signal to the remote station to activate the control device and activate a visual and / or audible alarm signal, In some cases, the corresponding television camera F may be specified.

The transmission line L terminates in a remote station (see FIG. 2) in the distribution device VT, which distributes the intricately transmitted partial image information of the storage device to the associated intermediate memory ZS, where , So that it is stored where it is intended for that purpose.

New information is periodically overwritten in the intermediate memory,
In addition, they are selected periodically, the contents of which are available for display on the respective monitor M. Monitor M1
Or many intermediate memories ZS as Mn is prepared
However, at this time, an arrangement of one common monitor M that is periodically connected to a device (not shown) before and after is also conceivable.

In the calm state, the image information contained in the matrix memory BSA is transmitted to the intermediate memory ZS via the transmission line L in tandem. In an emergency, that is, when the data processing device VE (see FIG. 1) confirms the movement, first, the image information of the located pattern is transmitted from the pattern memory MS to the monitor M assigned to the corresponding television camera F, Subsequently, the transmission line L is used to transmit image information from the matrix memory BS assigned to the television camera F that has photographed the movement. During this time, other intermediate memory
Since the content of ZS is not updated, the conventional image is still displayed on the monitor M.

In an emergency, the data processor VE sends an alarm signal to the remote station as a visual and / or audible alarm indication. The corresponding alarm signal can be transmitted via the transmission line L or another transmission medium. The alarm display is activated by the alarm transmitter AG, whereby the person monitoring the monitor M notices the acoustic signal, and the corresponding monitor M is subsequently visually characterized. If only one common monitor M is provided, an acoustic signal is sufficient.

The pattern memory MS (FIG. 1) has a number of displays for the object in question, that is, not only from different angles, but also as different sizes. In the present invention, continuous comparison of individual patterns or simultaneous comparison of a plurality of patterns can be considered according to the amount of information to be processed. If the object cannot be identified within the range of the movement confirmed, the process ends, as described, without transmission of the pattern or symbol.

Instead of the image information, only the identification signal of the identified symbol is transmitted to the monitor M, where, for example, in the intermediate memory ZS, the identification signal transmitted is converted to a symbol image display or, similarly, to a plain text display. I can do it. In an emergency, it is also conceivable to display the symbolic or plain text overlay and the transmitted (high-resolution) image information on a separate monitor used only in the emergency.

Continuation of the front page (72) Inventor Cummerao, Thomas Germany, Germany 6393 Wehheim Limesstrasse 20 (56) References JP-A-54-126420 (JP, A) JP-A-62-136991 (JP, A) US Pat. No. 3,732,366 (US, A) US Pat. No. 3,947,833 (US, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G08B 13 / 00-15 / 02 H04N 7/18

Claims (19)

(57) [Claims] 1. A television monitor device comprising at least a television camera, a data processing device, and at least one monitor for reproducing an image captured by the television camera, wherein the data processing device includes a moving electronic device. The data processing device (VE) has a storage device (MS) that is formed as an annunciator and issues an alarm message when an image is changed, and the data processing device (VE) stores image information of a large number of patterns. When the alarm message is issued, the pattern memory (M
The comparison device (V) compares the changed image portion of the captured image with all the patterns of S),
Further, when one pattern is matched, the image information is selected from the pattern memory (MS) and transmitted to the monitor (M), where it is useful to display the corresponding pattern. Monitor device. 2. A large number of television cameras (F1N to Fn) are connected to the process control device (VE), and the image information regularly photographed by one television camera is reliably assigned. The file is stored in the matrix memory (BS), and the partial information (BT) is periodically selected from the entire matrix memory (BS). Through the narrow band transmission circuit (L), the common memory with the intermediate memory (ZS) Up to the monitor (M), or individually to the intermediate memory (Z
S), and transmits intricately to the monitor (M) assigned to the corresponding television camera (F), and stores image information of a plurality of patterns in the data processing device (VE). A storage device (MS) is provided, and when issuing an alarm message, the comparing device compares the changed image portion of the image taken by the corresponding television camera with all the patterns in the memory (MS); 1
If the two patterns match, the image information is transmitted from the memory (MS) to one common monitor (M) or the monitor (M) assigned to the corresponding television camera (F), where Used in the display of the relevant pattern, and then automatically or at the request of the other side, in its matrix memory (BS) where the assigned television camera has taken a picture change Only image information
The television monitor device according to claim 1, wherein the information is transmitted to the monitor (M) assigned to the corresponding television camera (F). 3. The television monitor device according to claim 2, wherein the narrow band transmission line is formed as a digital transmission line. 4. The transmission line (L) is 64k per frame.
It has a transmission rate of bits per second, where each frame is divided into equal-sized sub-frames corresponding to the number of all television cameras (F1 to Fn), each sub-frame being 1 Since it is securely assigned to one TV camera and is used for transmitting partial information (BT) of one image, complete image information is transmitted after a predetermined time has elapsed. The television monitor device according to claim 2 or 3, wherein: 5. The television monitor device according to claim 1, wherein the alarm message on the monitor (M) is displayed acoustically. 6. In the case of a plurality of monitors (M), an alarm message to the corresponding monitor is displayed visually and / or acoustically.
The television monitor device according to any one of the above. 7. Image information taken by one or a plurality of television cameras (F) in said calm state (no alarm message is output) is transmitted to said one or more monitors (M). 3. The method according to claim 1, further comprising the step of transmitting the image information of a television camera corresponding to a high-resolution display to the corresponding monitor (M) in a case of being greatly compressed by the data processing device. A television monitor device according to item 1. 8. The data processing device (VE) has two matrix memories (BS) for each television camera (F), wherein one of the matrix memories (BSA) has a low resolution. The image information is stored as a display, and the other image memory (BSB) is stored.
To store the image as a high resolution display, and furthermore, both matrix memories (BSA, BS
The television monitor device according to any one of claims 1 to 7, wherein B) is described simultaneously and in parallel. 9. The method according to claim 1, wherein the comparison of the contents of the pattern memory is performed with the contents of the matrix memory as a high-resolution display. The television monitor device as described. 10. The pattern memory according to claim 1, wherein a large number of target patterns are viewed from various sights and stored in various sizes. The television monitor device according to any one of the above. 11. The pattern memory (MS) stores image information of a corresponding symbol for each target, and in the case of an alarm, stores the image information of the corresponding symbol in the monitor (M). 11. The television monitor device according to claim 10, wherein the signal is transmitted to a television monitor. 12. The symbol image information of the symbol is filed in the pattern memory (MS) as a low-resolution display and transmitted to the monitor (M). Item 2. The television monitor device according to item 1. 13. An image photographed by said television camera (F1 to Fn) is continuously displayed at predetermined intervals on said common monitor (M), and movement has been confirmed in said emergency. The television monitor device according to claim 2, wherein the image of the television camera (F) is displayed. 14. In the case of the above-mentioned calm state, a matrix memory (BS) as image information of a low-resolution display is provided.
A) the image information from and, in said emergency,
9. The television according to claim 2, wherein image information from the matrix memory (BSB) as a high-resolution display is selected and transmitted to the corresponding monitor (M). Monitor device. 15. The television monitor apparatus according to claim 1, wherein only the identification signal of the confirmed symbol is transmitted to the monitor (M) instead of the image information. 16. The intermediate memory (ZS) displays the conversion of the transmitted identification signal into symbolic image information on the monitor (M).
16. The television monitor device according to 15. 17. In the intermediate memory (ZS), conversion of the transmitted identification signal into plain text is performed by the monitor (M).
17. The television monitor device according to claim 1, wherein the television monitor device is displayed above. 18. In the emergency case, the image information is first transmitted by the low resolution display (downward scanning).
The television monitor device according to claim 1 or 2, wherein ng) is performed. 19. The display according to claim 1, wherein the symbolic image display and / or the display of the transmitted image information is transmitted in parallel in an emergency to the other monitor (M). 19. The television monitor device according to any one of items 18 to 18.