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New Crowdin translations - zh-CN
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Hamish Willee
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# 飞行终止配置
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The _Flight termination_ [failsafe action](../config/safety.md#failsafe-actions) may be triggered by a [safety check](../config/safety.md) (e.g. RC Loss, geofence violation, etc. on any vehicle type or in any flight mode), or by the [Failure Detector](../config/safety.md#failure-detector).
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The _Flight termination_ [failsafe action](../config/safety.md#failsafe-actions) irreversibly turns off controllers and sets PWM values to their parameter configured failsafe values.
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:::info
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Flight termination may also be triggered from a ground station or companion computer using the MAVLink [MAV_CMD_DO_FLIGHTTERMINATION](https://mavlink.io/en/messages/common.html#MAV_CMD_DO_FLIGHTTERMINATION) command.
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This is sent, for example, when you call the [MAVSDK Action plugin](https://mavsdk.mavlink.io/main/en/cpp/api_reference/classmavsdk_1_1_action.html#classmavsdk_1_1_action_1a47536c4a4bc8367ccd30a92eb09781c5) `terminate()` or `terminate_async()` methods.
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Flight termination differs from the [Kill action](../config/safety.html#kill-switch) in that it is permanent until after reboot.
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:::
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:::warning
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This is _not_ an independent _Flight Termination System_.
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如果断电或者自驾仪完全失控,失效保护设备则不会触发。
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:::
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## 综述
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### Termination Triggers
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Termination may be triggered by:
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- [Safety checks](../config/safety.md) for RC Loss, geofence violation, and so on (on any vehicle type or in any flight mode).
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- [Failure Detector](../config/safety.md#failure-detector) trigger
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- RC termination switch (mapped to an RC channel using [RC_MAP_TERM_SW](../advanced_config/parameter_reference.md#RC_MAP_TERM_SW)).
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- The MAVLink [MAV_CMD_DO_FLIGHTTERMINATION](https://mavlink.io/en/messages/common.html#MAV_CMD_DO_FLIGHTTERMINATION) MAVLink command from a GCS or companion computer (see [MAVLink Trigger](#mavlink-trigger) below).
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飞行终止是无法取消的。
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在飞行终止触发后,您应尽快拔下电池。
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您需要在重启载具或重新上电后才能再次使用。
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### Termination Actions
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When _Flight termination_ is activated, PX4 simultaneously turns off all controllers and sets all PWM outputs to their failsafe values.
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根据所连接的设备,PWM 故障保护输出可以用来完成以下动作:
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@@ -17,10 +38,6 @@ When _Flight termination_ is activated, PX4 simultaneously turns off all control
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- 触发一个可充气的装置,如安全气囊。
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- 触发警报。
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飞行终止是无法取消的。
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在飞行终止触发后,您应尽快拔下电池。
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您需要在重启载具或重新上电后才能再次使用。
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:::tip
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PX4 does not know what safety devices are attached - it just applies a predefined set of PWM values to its outputs.
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:::
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@@ -30,11 +47,6 @@ Failsafe values are applied to all outputs on termination.
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无法配置电机或特定安全装置为独立的特定时间(或其他方式)触发。
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:::
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:::info
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This is _not_ an independent _Flight Termination System_.
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如果断电或者自驾仪完全失控,失效保护设备则不会触发。
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:::
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## 硬件配置
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Any _safety device(s)_ (e.g. a [parachute](../peripherals/parachute.md)) that can be triggered by changing a PWM value can be used, and may be connected to any free PWM port (both MAIN and AUX).
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@@ -70,6 +82,17 @@ The [Failure Detector](../config/safety.md#failure-detector) can also (optionall
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Finally, set the `PWM_AUX_FAILn` and `PWM_MAIN_FAILn` PWM values for any motors.
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:::info
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Flight termination via ATS only works if `drivers/pwm_input` is included in the firmware for your board.
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If not, you need to add it manually to your board configuration using [boardconfig](../hardware/porting_guide_config.md#px4-menuconfig-setup).
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:::
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## MAVLink Trigger
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The [MAV_CMD_DO_FLIGHTTERMINATION](https://mavlink.io/en/messages/common.html#MAV_CMD_DO_FLIGHTTERMINATION) command can be used to trigger Flight termination from a ground station or companion computer.
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This is sent, for example, when you call the [MAVSDK Action plugin](https://mavsdk.mavlink.io/main/en/cpp/api_reference/classmavsdk_1_1_action.html#classmavsdk_1_1_action_1a47536c4a4bc8367ccd30a92eb09781c5) `terminate()` or `terminate_async()` methods.
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## 逻辑图解
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下图显示了飞行终止的逻辑流程。
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