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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
  2. the appropriate detector object
  3. the settings panel of the corresponding module.
    Image Modified
  4. In the Minimum alarm time, s field (1)
  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 ignored.Set the Track alarm end checkbox (2), 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. (3), if it is necessary
  13. if you want to initiate an alarm on the camera when
  14. a detection tool is triggered.
  15. the detector generates an event.
  16. By default, the standard (default) neural network is initialized according to the device selected in step 10. You must not select the standard neural networks for the different processor types manually, since it is performed automatically. If there is
  17. If
  18. a unique neural network
  19. is prepared
  20. for use,
  21. in the
  22. click the Image Added button to the right of the Tracking model field,
  23. click the Image Removed button (4),
  24. and 
  25. select the
  26. specify its file in the standard Windows Explorer window that opens
  27. . If the field is left blank, the default neural networks will be used for detection (see the table below). They are selected automatically depending on the CPU and are located in the C:\Program Files (x86)\Axxon PSIM\Modules64 directory:Neural network nameDetection/CPUsmoke_openvino.annSmoke detection/CPUsmoke_original.annSmoke detection/GPUfire_openvino
  28. .
  29. annFire detection/CPUfire_original.annFire detection/GPU
  30. In the Detection sensitivity [0, 100]

  31.  field (5)
  32. field, enter the detector sensitivity

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

  35. detection tool will trigger. Info
    titleNote
  36. detector generates an alarm: the higher the sensitivity, the higher the recognition threshold. For example,

  37. if the
  38. at sensitivity

  39. is 0
  40. 100,

  41. then the frame on which fire/smoke is detected with the certainty of more than 95% will be considered alarmed. If the sensitivity is 100, then the frame with 50% certainty of fire/smoke detection will be alarmed
  42. the detector neural network must get 100% certainty for some period of time during the frame processing. The value of the Detection sensitivity field is determined experimentally.

  43. In the Frames processed per second [0.016, 100] field
  44. (6)
  45. , set the number of frames per second that
  46. will be processed by
  47. the neural network processes. This value
  48. has an impact on
  49. affects the processor load: the higher the value, the greater the load. It also
  50. has an impact on
  51. affects the
  52. algorithm
  53. operation speed of the algorithm: the higher the frame rate, the faster the required number of frames
  54. will be
  55. are collected for making a decision and
  56. triggering
  57. generating an alarm, if required.
  58. In the Number of frames for analysis and output

  59.  field (7)
  60. [5, 20] field, enter the minimum number of frames in the range from 5 to 20 for the

  61. detection tool
  62. detector to analyze before

  63. triggering
  64. generating an alarm. The higher the value, the more reliable the result of the

  65. detection tool
  66. 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 5.

  67. Set the Scanning mode checkbox to track small objects. If you enable this mode, the load on the system increases. That is why we recommend setting the small number of frames processed per second in step 7. By default, the checkbox is cleared. For more information on the scanning mode, see Configuring the Scanning mode.

    Info
    titleNote
  68. Multiplication of Minimum alarm time, s and Number of frames for analysis and output values is the time period (in seconds) after which the alarm will trigger after the fire/smoke detection.

    In the
  69. 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.

  70. From the Device drop-down list
  71. (8)
  72. , select the device on which the neural network will operate: the CPU, one of the NVIDIA GPUs, or one of the Intel GPUs. Auto
  73.  
  74. the
  75. (default value)—the device is selected automatically: The NVIDIA GPU gets the highest priority, followed by the Intel GPU, then the CPU
  76. .
  77. .
    Note
    titleAttention!

    We recommend using the GPU.

    It 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. Click the Settings button (9). The Detection settings windows will open
  79. .

  80. Specify the area of interest on the video image:
    1. Click the Stop video button to capture the frame of the video image
  81. (1)
    1. .
  82. Image Removed
    1. Image Added
    2. Click the Area of interest
  83.  button (2)
    1. button.
    2. On the captured video

  84. image (3)
    1. frame, sequentially set the anchor points of the area using the left mouse button, the situation

  85. in
    1. of which you want to analyze

  86. (1), by sequentially clicking the left mouse button. Only one area can be added. If you try to add a second area, the first area will be deleted. After adding an area, the rest
    1. . After you add the area, the remaining part of the video image

  87. will be darkened.
    Image Removed
    1. is darkened. If you don't specify the area of interest, the entire frame is analyzed.
      Image Added

    2. Click the OK button

  88. (2)
    1. .

      Info
      titleNote
  89. .Specifying the Area of interest is a mandatory requirement for the detection module operation.
    1. To remove the area, click the

  90. Image Removed 
    1. Image Added button next to the Area of interest button.

      You can add only one area. If you try to add the second area, the first area is deleted.

  91. Click the Apply
  92. button (10)
  93.  button.

Configuring the Fire detection and Smoke detection modules is complete. 

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