{"id":26877,"date":"2025-05-20T15:39:33","date_gmt":"2025-05-20T06:39:33","guid":{"rendered":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=26877"},"modified":"2025-05-20T15:39:33","modified_gmt":"2025-05-20T06:39:33","slug":"rpi3%e3%81%ae%e4%b8%8d%e5%ae%89%e5%ae%9a%e6%80%a74","status":"publish","type":"post","link":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/?p=26877","title":{"rendered":"RPi3\u306e\u4e0d\u5b89\u5b9a\u6027(4)"},"content":{"rendered":"\n

Raspberry Pi 3 Model Bと同B+ (以下それぞれRPi3, RPi3+)のmicroSDカードを新品のものにして，鉄壁の安定性を誇るRaspberry Pi 4 Model B (RPi4)のboot, rootの内容をコピーして稼働させたところ，しばらくの間は防犯カメラの出すRTSPを1日以上安定して受信しHDMIでつないだモニター（地デジテレビ）に動画を映し続けたので，不安定性問題は一旦解決<\/a>，としました．<\/p>\n\n\n\n

ところが，それから何日か運転しているうちに不安定性が増し，現在では一日に3〜4度フリーズする<\/a>という最初の状態に戻ってしまいました．<\/p>\n\n\n\n

どうもmicroSDカードの劣化が問題ではなさそうです．これでは筆者がまめにいじれるRPi3はともかく，他の家族が主に利用しているRPi3+の方は好ましい状態ではありません．<\/p>\n\n\n\n

そこで鉄壁を誇るRPi4 (RAM 4GB)を供出することにしました．それからさらに何日か経ちますが，こちらは依然として鉄壁の安定性で，これまでRPi3(+)のように画像が止まってしまう状態に陥ったことはありません．<\/p>\n\n\n\n

やはりこのRTSP画像を受信してモニターに表示するという用途はRPi3(+)にはかなり厳しいのかも知れません．<\/p>\n\n\n

\n
\"\"
テレビの裏で黙々と稼働するRaspberry Pi 4 Model B (RAM 4GB)<\/figcaption><\/figure>\n<\/div>\n\n\n

ということで，少々もったいないですがRPi4を家族用に供出します．余ったRPi3+については他の用途を考えます．<\/p>\n","protected":false},"excerpt":{"rendered":"

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