CN1294724C - Monitored object - Google Patents

Abstract

The present invention provides a transmitting and alarming device for the dynamic-to-static image of a monitored object, which comprises a video camera, a data collector, a wireless transmitting and receiving module, a wireless local area network, a monitoring computer and a voice information alarm, wherein the operating program of the monitoring computer finishes discriminating the dynamic-to-static image of the monitored object and starting the voice information alarm. The present invention changes the present situation that the current image monitoring system only has an intrusion alarming function, and has the advantages that not only the intrusion alarm of a system but also the operating condition of on-site instrument can be monitored, namely that the dynamic-to-static of the monitored object is monitored. The device also further provides a selection range of preset parameters, which is used for correcting the setting of the preset value of each parameter, and further provides the simultaneous monitoring of a plurality of on-site objects of monitoring divisions of different properties, wherein the simultaneous monitoring also comprises the monitoring of the static-to-dynamic image of the object so as to satisfy the current high requirements of a digital video image monitoring project.

Description

The monitored object "moving and static" image transmission alarm device

technical field

The invention relates to a data exchange network device, in particular to a monitoring object "moving and static" image transmission alarm device.

Background technique

At present, in the network digital video image monitoring projects at home and abroad, the image monitoring system we often see has the function of intrusion alarm (a certain area of the image changes from a still image to a moving image, that is, the alarm function of the static change of the object), and Basically, there is no image system that monitors the working status of the equipment on the monitoring site (a certain area of the image changes from a moving image to a still image, that is, the monitored object "moves into static"). In particular, the real-time monitoring and alarming of the monitored object's "moving and static" transmission image is performed by a computer, and the prior art cannot meet this requirement.

Contents of the invention

The object of the present invention is to provide an image transmission alarm device capable of monitoring the motion state of field equipment, and realize the alarm function when the monitored equipment changes from a motion state to a static state.

The monitoring object "moving and static" image transmission alarm device provided by the present invention includes a data collector, a wireless local area network and a monitoring computer, and a video camera and a wireless transceiver module are respectively connected to the data collector. The wireless transceiver module 2 and the sound alarm, the real-time images collected by the camera are transmitted to the monitoring computer through the wireless LAN, and the operation program of the monitoring computer completes the screening of the "moving and static" images of the monitored object and the start of the sound alarm according to the following steps :

1) Initialize and set parameters, including the total number of images, the number of alarm frames and the minimum number of alarm frames during normal operation of the device, the RGB components of image pixels and the change amount of RGB components during normal operation of the device, the number of points changed by image pixels and the normal operation of the device The minimum number of pixels changed at time;

2) Collect images of the area to be tested regularly and form files;

3) Detect whether the total number of image files is less than a predetermined value, if the detection result is no, then perform step 7);

4) If the result of detection in step 3) is yes, then open two adjacent image files, compare whether the amount of change of the pixel RGB component of the corresponding point frame image is greater than the predetermined value set by this parameter, and measure the change of the RGB component of the pixel If the number of points is greater than the predetermined value set by this parameter, if the number of points is greater than the minimum number of pixels changed, then perform step 6);

5) If the number of points in step 4) is less than the minimum number of pixels changed, then close the opened image file, add 1 to the total number of images, and return to step 3);

6) Add 1 to the number of alarm frames, close the opened image file and add 1 to the total number of images, and return to step 3);

7) Detect whether the alarm frame number is greater than the predetermined value set by the minimum alarm frame number, if the detection result is yes, then perform step 9);

8) If the result of the detection in step 7) is no, then the instruction system starts the sound alarm and executes step 9);

9) Delete all image files;

10) End, and return to step 2).

Another monitoring object "moving to static" image transmission alarm device provided by the present invention includes a data collector, a video cable and a monitoring computer, the data collector is connected with a camera, and the monitoring computer is connected with an audio alarm , the data collector is connected to the monitoring computer via a video cable, and the real-time images collected by the camera are directly transmitted to the monitoring computer through the video cable, and the operation program of the monitoring computer completes the "dynamic change" of the monitored object according to the following steps: Screening of "quiet" images and activation of the sound alarm:

1) Initialize and set parameters, including the total number of images, the number of alarm frames and the minimum number of alarm frames during normal operation of the device, the RGB components of image pixels and the change amount of RGB components during normal operation of the device, the number of points changed by image pixels and the normal operation of the device The minimum number of pixels changed at time;

2) Collect images of the area to be tested regularly and form files;

3) Detect whether the total number of image files is less than a predetermined value, if the detection result is no, then perform step 7);

4) If the result of detection in step 3) is yes, then open two adjacent image files, compare whether the amount of change of the pixel RGB component of the corresponding point frame image is greater than the predetermined value set by this parameter, and measure the amount of change of the RGB component of the pixel The number of points greater than the predetermined value set by this parameter, if the number of points is greater than the minimum number of points changed by the pixel, then perform step 6);

5) If the number of points in step 4) is less than the minimum number of pixels changed, then close the opened image file, add 1 to the total number of images, and return to step 3);

6) Add 1 to the number of alarm frames, close the opened image file and add 1 to the total number of images, and return to step 3);

7) Detect whether the alarm frame number is greater than the predetermined value set by the minimum alarm frame number, if the detection result is yes, then perform step 9);

8) If the result of the detection in step 7) is no, then the instruction system starts the sound alarm and executes step 9);

9) Delete all image files;

10) End, and return to step 2).

In the monitoring object "moving to static" image transmission alarm device provided by the present invention, the operating program of the monitoring computer further provides a selection range of at least one group of parameters for changing monitoring sensitivity, which is used to correct the setting of predetermined values of various parameters.

In the monitoring object "moving and static" image transmission alarm device provided by the present invention, the operating program of the monitoring computer further provides simultaneous monitoring of objects with different properties in at least 4 monitoring partitions on the site, including monitoring objects for "static changes" "Image screening and alarm operation procedures.

The monitoring object "moving to static" image transmission alarm device provided by the present invention changes the current image monitoring system that only has an intrusion alarm function (a certain area of the image changes from a static image to a moving image, that is, the alarm function of the "static change" of the object) However, it provides a technical solution for image monitoring to monitor the working status of the equipment on the site (a certain area of the image changes from a moving image to a still image, that is, the monitored object "moves into static"). There is no precedent for this alarm technology. The invention has the advantage of not only being able to monitor the intrusion alarm of the system, but also monitoring the working state of equipment on the spot, which meets the current high demand for digital video image monitoring engineering.

The following will be described in detail with reference to the accompanying drawings in conjunction with the embodiments, in order to gain a deeper understanding of the purpose, features and advantages of the present invention.

Description of drawings

Fig. 1 is a block diagram of the monitored object "moving to static" image transmission alarm device;

Fig. 2 is a flow chart of monitoring computer image processing.

Detailed ways

Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

The embodiment of the "moving and static" image transmission alarm device of the monitored object provided by the present invention includes a data collector, a wireless local area network and a monitoring computer, and a video camera and a wireless transceiver module are respectively connected to the data collector. There are two wireless transceiver modules and an audible alarm connected to each other. The wireless local area network is used for the remote object; the video cable can be used for the local object, and the real-time image collected by the camera is directly transmitted to the monitoring computer through the video cable.

The real-time image collected by the camera is transmitted to the monitoring computer through the wireless LAN, and the operating program of the monitoring computer completes the screening of the "moving and static" image of the monitored object and the activation of the sound alarm.

The "moving and static" image transmission alarm of the monitored object is completed by the designed computer program. Its design idea is: to obtain all frame images, compare the changes of RGB components of corresponding point frame images, measure the number of alarm frame images whose RGB component changes are greater than a predetermined value, and decide whether to start an alarm.

With reference to Fig. 1, the data processing process among the present invention is described in detail as follows:

1) Initialize and perform parameter setting (flow chart 100), including the total number of images; the number of alarm frames and the minimum number of alarm frames when the device is in normal operation; the RGB component of the image pixel and the amount of change of the RGB component when the device is in normal operation; The number of points and the minimum number of points for pixel change during normal operation of the device, etc.;

2) regularly collect images of the area to be tested and form a file (flow chart 101);

3) Obtain all frame images in a loop (flow chart 102), detect whether the total number of image files is less than a predetermined value, if the detection result is no, then perform step 7);

4) if the result of detection in step 3) is yes, then open two adjacent image files (flow chart 201), compare corresponding point (flow chart 203) whether the frame image pixel RGB component is greater than the preset value of this parameter setting ( Flowchart 204-208), measure the number of points whose RGB component change amount of the pixel is greater than the predetermined value set by the parameter, if the number of points is greater than the minimum number of pixels changed (flowchart 301), then perform step 6);

5) If the number of points in step 4) is less than the minimum number of pixels changed (flow chart 301), then close the opened image file (flow chart 303), add 1 to the total number of images (flow chart 304), and return to step 3);

6) Add 1 to the number of alarm frames (flow chart 302), close the opened image file and add 1 to the total number of images (flow chart 303-304), return to step 3);

7) Detect whether the alarm frame number is greater than the predetermined value set by the minimum alarm frame number (flow chart 401), if the detection result is yes, then perform step 9);

8) If the result of the detection in step 7) is no, then the instruction system starts the sound alarm (flow chart 402) and executes step 9);

9) delete all image files (flow chart 403);

10) End, and return to step 2).

The present invention also has further extended functions.

In order to improve monitoring sensitivity, the operating program of the monitoring computer further provides a selection range of predetermined parameters for correcting the setting of predetermined values of various parameters.

The operating program of the monitoring computer further provides simultaneous monitoring of objects with different properties in at least 4 monitoring zones on site, including an operating program for screening and alarming images of "static changes" of objects.

The monitored object "moving to static" image transmission alarm device, in addition to being used for real-time monitoring of oil fields, transportation and other industries and security departments, has a wide range of applications in many fields of image real-time monitoring.

Claims (6)

1. a monitored target " moving to resting " image transmits warning device, comprise data acquisition unit, WLAN (wireless local area network) and supervisory control comuter, with described data acquisition unit links to each other respectively video camera and radio receiving transmitting module one arranged, with described supervisory control comuter links to each other respectively radio receiving transmitting module two and audio communication alarm arranged, the realtime graphic of described camera acquisition is transferred to described supervisory control comuter by WLAN (wireless local area network), it is characterized in that the operation sequence of described supervisory control comuter is finished as follows to the examination of monitored target " moving to resting " image with to the startup of audio communication alarm:

1) the initialization line parameter setting of going forward side by side, what comprise that change amount, the image pixel of RGB component when the RGB component of total number of images, warning frame number and equipment minimum warning frame number, image pixel when normally moving and equipment normally move change counts and equipment minimum the counting that pixel changes when normally moving;

2) image in timing acquiring zone to be measured and form file;

3) whether the detected image total number of files is less than predetermined value, if testing result is that then execution in step 7);

4) if the result who detects in the step 3) is for being, then open the two adjacent images file, the predetermined value that whether is provided with of the change amount of corresponding points two field picture pixel RGB component relatively greater than this parameter, change amount the counting of the RGB component of metering pixel greater than the predetermined value of this parameter setting, if minimum the counting that this is counted and changes greater than pixel, then execution in step 6);

5) if this is counted less than minimum counting of pixel change in the step 4), then close opened image file, total number of images is added 1, return step 3);

6) the warning frame number is added 1, close opened image file and total number of images is added 1, return step 3);

7) predetermined value that whether is provided with greater than minimum warning frame number of detection alarm frame number is if testing result is for being that then execution in step 9);

8) if the result who detects in the step 7) is not, then command system starts audio communication warning and execution in step 9);

9) deletion all images file;

10) finish, and return step 2).

2. according to the described monitored target of claim 1 " moving to resting " image transmission warning device, it is characterized in that: the operation sequence of described supervisory control comuter also further provides the range of choice of at least one group of parameter that changes monitoring sensitivity, is used to revise the setting of parameters predetermined value.

3. according to claim 1 or 2 described monitored target " moving to resting " images transmission warning device, it is characterized in that: the operation sequence of described computer also further provides simultaneously to 4 monitorings of monitoring the object of subregion different in kind in scene, comprising being used for monitored target " quiet change " examination of image and the operation sequence of warning at least.

4. a monitored target " moving to resting " image transmits warning device, comprise data acquisition unit, vision cable and and supervisory control comuter, described data acquisition unit is connected with video camera, described supervisory control comuter is connected with the audio communication alarm, described data acquisition unit links to each other with supervisory control comuter through vision cable, the realtime graphic of described camera acquisition directly is transferred to described supervisory control comuter by vision cable, it is characterized in that the operation sequence of described supervisory control comuter is finished as follows to the examination of monitored target " moving to resting " image with to the startup of audio communication alarm:

1) the initialization line parameter setting of going forward side by side, what comprise that change amount, the image pixel of RGB component when the RGB component of total number of images, warning frame number and equipment minimum warning frame number, image pixel when normally moving and equipment normally move change counts and equipment minimum the counting that pixel changes when normally moving;

2) image in timing acquiring zone to be measured and form file;

3) whether the detected image total number of files is less than predetermined value, if testing result is that then execution in step 7);

4) if the result who detects in the step 3) is for being, then open the two adjacent images file, the predetermined value that whether is provided with of the change amount of corresponding points two field picture pixel RGB component relatively greater than this parameter, change amount the counting of the RGB component of metering pixel greater than the predetermined value of this parameter setting, if minimum the counting that this is counted and changes greater than pixel, then execution in step 6);

5) if this is counted less than minimum counting of pixel change in the step 4), then close opened image file, total number of images is added 1, return step 3);

6) the warning frame number is added 1, close opened image file and total number of images is added 1, return step 3);

7) predetermined value that whether is provided with greater than minimum warning frame number of detection alarm frame number is if testing result is for being that then execution in step 9);

8) if the result who detects in the step 7) is not, then command system starts audio communication warning and execution in step 9);

9) deletion all images file;

10) finish, and return step 2).

5. according to the described monitored target of claim 4 " moving to resting " image transmission warning device, it is characterized in that: the operation sequence of described supervisory control comuter also further provides the range of choice of at least one group of parameter that changes monitoring sensitivity, is used to revise the setting of parameters predetermined value.

6. according to claim 4 or 5 described monitored target " moving to resting " images transmission warning device, it is characterized in that: the operation sequence of described computer also further provides simultaneously to 4 monitorings of monitoring the object of subregion different in kind in scene, comprising being used for monitored target " quiet change " examination of image and the operation sequence of warning at least.

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