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Camera requirements for the Fire detection and Smoke detection modules

    The 
  • You can configure the Fire detection
  •  module can be configured
  • module on the settings panel of
  • the 
  • the Fire detection object created on the basis of the Camera object on the Hardware tab of the
  •  System
  • System settings
  •  dialog
  • window.
  • The 
  • You can configure the Smoke detection
  •  module can be configured
  • module on the settings panel of
  • the 
  • the Smoke detection object created on the basis of the Camera object on the Hardware tab of the
  •  System
  • System settings
  •  dialog
  • window.
    Image Modified

The To configure the Fire detection and Smoke detection modules are configured similarly and as follows modules, do the following:

  1. Go to the settings panel of the
  2. appropriate
  3. corresponding module.
    Image Modified
  4. In the Minimum alarm time, s
  5. To receive events about the end of fire/smoke only after the time period from the Alarm duration, sec setting, set the Track alarm end checkbox. By default, the checkbox is cleared, which means that events about the end of fire/smoke are received immediately.
  6. In the Alarm duration, sec field, enter the time period in seconds during which the repeated fire/smoke
  7. alarms will be ignoredSet the Track alarm end checkbox, if it is necessary to generate an end-of-alarm event only after the expiration of the time, which is counted as: time of the last received alarm + time specified in the Minimum alarm time, s parameter
  8. alarm events are ignored. By default, the setting isn't available for editing. To enable it, you must set the Track alarm end checkbox (see the previous step).
    Info
    titleNote
  9. For example, if 5 seconds is set in the Minimum alarm time, sfield, and there is a fire/smoke on the image during a longer period of time, then in order to avoid receiving messages about the fire/smoke from the detection tool every 5 seconds, set a higher value for the Minimum alarm time, s parameter (for example, 10 seconds). In this case, only one message about the fire/smoke will be displayed, and all the following alarms will not be displayed in the Event viewer until the time interval between the recognitions of the fire/smoke becomes longer than 10 seconds.
  10. If you set the Track alarm end checkbox, the events about the end of fire/smoke are received after the time specified in the Alarm duration, sec setting. If, until the end of this period, the current fire/smoke is completed and the new one is detected, the detector doesn't generate events about completing the current and starting the new alarm. The new fire/smoke event is received after the current alarm is completed.

  11. Set the Generate alarm on camera checkbox
  12. ,
  13. if
  14. it is necessary
  15. you want to initiate an alarm on the camera when
  16. a detection tool is triggered
  17. the detector generates an event.
  18. By default, the standard (default) neural network is initialized according to the device selected in
  19. the Device drop-down list. The
  20. step 10. You must not select the standard neural networks for the different
  21. types of processors are selected
  22. processor types manually, since it is performed automatically. If there is a
  23. custom
  24. unique neural network
  25. is prepared
  26. for use,
  27. in the
  28. click the Image Added button to the right of the Tracking model field
  29. , click the Image Removed button
  30. , and 
  31. select the
  32. specify its file in the standard Windows Explorer window that opens.
  33. In the Detection sensitivity [0, 100] field, enter the detector sensitivity

  34. of the detection tool
  35. —an integer value in the range from 0 to 100. This parameter determines at what certainty of fire/smoke detection the

  36. detection tool will trigger:
  37. detector generates an alarm: the higher the sensitivity, the higher the recognition threshold. For example, at sensitivity 100, the

  38. detection tool
  39. detector neural network must get 100% certainty for some period of time

  40. when
  41. during the frame processing

  42. the frames
  43. . The value of the Detection sensitivity field is determined experimentally.

  44. In the Frames processed per second [0.016, 100] field, set the number of frames per second that
  45. will be processed by
  46. the neural network processes. This value affects the processor load: the higher the value, the greater the load. It also affects the operation speed of the algorithm: the higher the frame rate, the faster the required number of frames are collected for making a decision and
  47. triggering
  48. generating an alarm, if required.
  49. In the Number of frames for analysis and output [5, 20] field, enter the minimum number of frames in the range from 5

  50. 20
  51. to 20 for the

  52. detection tool
  53. detector to analyze before

  54. triggering
  55. generating an alarm. The higher the value, the more reliable the result of the

  56. detection tool
  57. detector operation. At the same time, if the value is too high, the short-time fire/smoke can be missed. If you enter a value less than the minimum, the value is set to

  58. 5. Info
    titleNote
    Multiplication of Minimum alarm time, s and Number of frames for analysis and output [
  59. 5

  60. , 20] values is the time period (in seconds) after which the alarm will trigger after the fire/smoke detection
  61. .

  62. Set

  63. the
  64. the Scanning mode checkbox to track small objects. If you enable this mode, the load on the system

  65. will increase. So
  66. increases. That is why we recommend

  67. specifying a
  68. setting the small number of frames processed per second in

  69. the Frames processed per second [0.016, 100] field
  70. step 7. By default, the checkbox is

  71. clear
  72. cleared. For more information on the scanning mode, see Configuring the Scanning mode.

    Info
    titleNote

    You cannot configure the scanning windows for the Fire detection and Smoke detection modules. The default parameters are used.

    When you use the scanning mode, we recommend using a full frame without specifying the area of interest in step 11.

  73. From the Device drop-down list, select the device on which the neural network will operate: the CPU, one of the NVIDIA GPUs, or one of the Intel GPUs. Auto (default value)—the device is selected automatically:
  74.  
  75. The NVIDIA GPU gets the highest priority, followed by the Intel GPU, then the CPU.
    Note
    titleAttention!

    We recommend using the GPU.

    It

  76. may
  77. can take several minutes to launch the algorithm on the NVIDIA GPU after you apply the settings. You can use caching to speed up future launches (see Optimizing the operation of neural analytics on GPU).

  78. Specify the area of interest on the video image:
    1. Click the Stop video button to capture the frame of the video image.
      Image Modified
    2. Click the Area of interest button.
    3. On the captured video

  79. image
    1. frame, sequentially set the anchor points of the area using the left mouse button, the situation

  80. in
    1. of which you want to analyze

  81. , by sequentially clicking the left mouse button
    1. . After

  82. adding an
    1. you add the area, the

  83. rest
    1. remaining part of the video image

  84. will be
    1. is darkened. If you don't specify the area of interest, the entire frame is analyzed.
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    2. Click the OK button.

      Info
      titleNote

      To remove the area, click the Image Modified button next to the Area of interest button.

      You can add only one area. If you try to add

  85. a
    1. the second area, the first area

  86. will be
    1. is deleted.

  87. Click the Apply button.

Configuring the Fire detection and Smoke detection modules is complete. 

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