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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 ignored

    Image Removed

    Set 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 step 10. You must not select the standard neural networks for the different processor types manually, since it is performed automatically. If there is
  19. If
  20. a unique neural network
  21. is prepared
  22. for use,
  23. in the
  24. click the Image Added button to the right of the Tracking model field,
  25. click the Image Removed button,
  26. and 
  27. select the
  28. specify its file in the standard Windows Explorer window that opens
  29. . 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
  30. .
  31. ann
  32. Smoke detection/CPUsmoke_original.annSmoke detection/GPUfire_openvino.annFire detection/CPUfire_original.annFire detection/GPU

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  33. In the Detection sensitivity [0

  34. ..
  35. , 100] field, enter the detector sensitivity

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

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

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

  42. when
  43. during the frame processing

  44. the frames
  45. . The value of the Detection sensitivity field is determined experimentally.

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

  60. -20
  61. to 20 for the

  62. detection tool
  63. detector to analyze before

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

  66. detection tool
  67. 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

  68. . Info
    titleNote
    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
  69. .

  70. Set

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

  73. will increase. So
  74. increases. That is why we recommend

  75. specifying a
  76. setting the small number of frames processed per second

  77. at
  78. in step 7. By default, the checkbox is

  79. clear
  80. 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.

  81. the
  82. 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
  83.  (default value)—the device is selected automatically: The NVIDIA GPU gets the highest priority, followed by the Intel GPU, then the CPU.

  84. 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)

  85. Click the Settings Image Removed button. The Detection settings windows will open
  86. .

  87. 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

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

  89. in
    1. of which you want to analyze

  90. , 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

  91. will be darkened
    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
  92. Specifying the Area of interest is a mandatory requirement for the detection module operation.
    1. 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 the second area, the first area is deleted.

  93. Click the Apply
  94. Image Removed button
  95.  button.

Configuring the Fire detection and Smoke detection modules is complete. 

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