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發表於 2012年3月16日 01:15 AM
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原帖由 kadettrc 於 2012-3-14 19:13 發表 
只要燈號不要給他一閃一閃就可以放心使用,你試試看發射機開啟狀態下,接電後把電拔掉,重新再接電的情況下燈號就會一閃一閃,這表示有(斷電)重開狀態,訊號連結就會不穩而NO控.所以升空前確認燈號穩定就可以放心穩穩的飛吧!這是dsm2的問題.至於dsmx就不會有這困擾了!以上請參考.
這個說法並不正確喔!!~
brownout detection (斷電偵測) 這是 DSM2 接收的特色，並不是它的 "問題"
它提醒你接收 "曾經" 斷電/斷訊過，要多加小心電源問題 (例如電變或是接收電池)
以 AR6xxx 為例，電壓低於 3.5v 就會出現閃燈
而 DSMX 已經把 brownout detection 這個功能拿掉
如果原來沒有閃燈，換了電池之後接收出現閃燈，那會不會因此 no 控?
並不會，它只是一個提醒
若不理會閃燈，之後在飛行時出現(不該發生的)斷電，就無法從這個燈號得知它 "曾經" 斷電過，因為它持續在閃
最好的作法還是先開發射器，再接上接收器的電源，這樣每趟飛行都能觀察燈號的情況，以便在下一趟飛行前可以處理電源問題
貼幾段官方的原文供大家參考
QuickConnect™ With Brownout Detection
Your AR6100/AR6100e features QuickConnect with Brownout Detection.
• Should an interruption of power occur (brownout), the system will reconnect immediately when power is restored (QuickConnect).
• The LED on the receiver will flash slowly indicating a power interruption (brownout) has occurred.
• Brownouts can be caused by an inadequate power supply (weak battery or regulator), a loose connector, a bad switch, an inadequate BEC when using an electronic speed controller, etc.
• Brownouts occur when the receiver voltage drops below 3.5 volts thus interrupting control as the servos and receiver require a minimum of 3.5 volts to operate.
How QuickConnect With Brownout Detection Works
• When the receiver voltage drops below 3.5 volts the system drops out (ceases to operate).
• When power is restored the receiver immediately attempts to reconnect to the last two frequencies that it was connected to.
• If the two frequencies are present (the transmitter was left on) the system reconnects typically about 4/100 of a second.
QuickConnect with Brownout Detection is designed to allow you to fly safely through most short duration power interruptions, however, the root cause of these interruptions must be corrected before the next flight to prevent catastrophic safety issues.
Brownout Detection—Not Available on DSMX Receivers
DSM2 receivers feature Brownout Detection that causes the receiver’s LED to flash
if a power interruption occurs. While DSMX receivers have QuickConnect™ and
recover instantly from a power interruption, the architecture of DSMX prevents
Brownout Detection when operating in DSMX mode. |
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