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Temperature State ( blaze )#

The Temperature State feature available on blaze-101 cameras indicates whether the camera's internal temperature is normal or too high.

When the temperature is too high, immediate cooling is required.

Use the Device Temperature (blaze) feature to determine the camera's current temperature.

機能を使用する#

仕組み#

内部温度に関する情報は、次のパラメーターによって提供されます。

  • The DeviceTemperature parameter value shows the current temperature of the location specified by the DeviceTemperatureSelector. For more information, see the Device Temperature (blaze) topic.
  • The TemperatureState パラメーター値は、カメラの現在の内部温度状態を示します。
    • Ok:デバイスの温度が通常の動作温度範囲内です。
    • Critical: The device temperature is close to or at the allowed maximum. Provide cooling.
    • Error: The device temperature is above the allowed maximum. Provide cooling immediately.

When the TemperatureState parameter value is Critical or Error, the camera provides a set of mechanisms that alert the user and help to protect the camera. This mode provides a set of mechanisms that alert the user and help to protect the camera.

これらのメカニズムは、アラートレベルやカメラが加熱中か冷却中かによって、異なるデバイス温度で有効になります。

情報

Normal camera operation requires that the temperature state stays at Ok and the housing temperature stays within the allowed range. To ensure this, follow the guidelines set out in the Environmental Requirements.

At elevated temperatures, the camera may get damaged, the camera's lifetime is shortened, and image quality may degrade. The lifetime is also shortened by frequent high-temperature incidents.

Heating Path and Cooling Path

Heating Path#

Critical Temperature Threshold

When the device temperature reaches the critical temperature threshold, the camera is close to becoming too hot.

この場合、次のようになります。

  • TemperatureStateパラメーターの値がCriticalに変わります。
Over Temperature Threshold

When the device temperature reaches the over temperature threshold, the camera is too hot. The camera must be cooled immediately. Otherwise, the camera may get irreversibly damaged.

この場合、次のようになります。

  • TemperatureStateパラメーターの値がErrorに変わります。
  • Image acquisition stops and can't be started until the device has cooled down (see below).
  • The Error Code (blaze) feature reports an over temperature error code.

情報

別のOver Temperatureイベントは、デバイス温度が過熱しきい値を4°C以上下回らないと送信できません。

Cooling Path#

Over Temperature Threshold

デバイスの温度が過熱しきい値を下回ると、次のようになります。

  • TemperatureStateパラメーターの値がErrorからCriticalに変わります。

When the device temperature falls to 4 °C below the over temperature threshold, image acquisition can be started again.

Critical Temperature Threshold

When the device temperature falls below the critical temperature threshold, the TemperatureState parameter value changes to Ok.

カメラの温度状態と内部温度は正常なため、カメラは正常に動作します。

Temperature Thresholds#

Temperature Sensor Critical Temperature Threshold Over Temperature Threshold
CPU 81 °C 85 °C
Sensor Board 66 °C 70 °C
Illumination Board 81 °C 85 °C

As soon as the temperature at one of the sensors has exceeded the threshold, the temperature state changes.

Temperature Stateの決定#

  1. TemperatureStateパラメーター値を取得します。
  2. If the parameter value is Critical or Error, you must cool the camera until the parameter value is Ok.

Temperature State機能を最大限に活用するには:

  • Use the Device Temperature feature to determine the exact temperature at various locations of the camera.
  • Check the LastError parameter value to determine whether the camera was too hot.