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    ESP32控制SC132相机硬件触发,通过树莓派保存图片到SD卡的一些问题

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    • M Offline
      MJYC @veye_xumm
      last edited by

      @veye_xumm
      您好,目前按照您所说的连续捕获的stream-count=-1的方式,没有办法捕获一次,保存一张不同名字的图片。
      我将我目前的情况详细的叙述一下:
      我将gpio-trigger.py 编写好,在Terimal中运行python nano gpio-trigger.py 能够正常的实现触发,存图
      0d72f9a2-0640-4f65-9f6d-cdd109c362be-屏幕截图 2023-11-17 164338.png
      于是,我将这个python文件作为开机启动程序
      d0d226fb-4253-4adc-b351-bd6829310b8b-屏幕截图 2023-11-17 164132.png
      3c2c2ad4-6b5e-4d5b-b131-3be6be43055b-屏幕截图 2023-11-17 164238.png

      但是每次重启后,都是没进行硬件触发,就在文件夹下产生了20张(指所有),且所有照片都是空的。于是我猜想是启动的太早了,于是我在gpio-trigger.py进入循环前,进行了60s的延迟。但是仍然没有解决,还是会出现延迟结束,没有硬件触发,直接生成20张空图片
      屏幕截图 2023-11-17 165806.png

      veye_xummV 1 Reply Last reply Reply Quote 0
      • veye_xummV Offline
        veye_xumm @MJYC
        last edited by

        @mjyc 你现在摄像头的工作模式,是断电保存的,还是树莓派启动后配置的?

        Questions will be answered as soon as possible, please be patient.
        如果你使用中文,请直接用中文提问。
        May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

        M 1 Reply Last reply Reply Quote 0
        • M Offline
          MJYC @veye_xumm
          last edited by

          @veye_xumm said in ESP32控制SC132相机硬件触发,通过树莓派保存图片到SD卡的一些问题:

          摄像头的工作模式

          摄像头的工作模式,是我paramsave保存的,每次上电v4l2-ctrl -L看到的都是一样的。

          veye_xummV 1 Reply Last reply Reply Quote 0
          • veye_xummV Offline
            veye_xumm @MJYC
            last edited by

            @mjyc 你试试别让他上电后自动执行,你手动执行你的这个python脚本?

            Questions will be answered as soon as possible, please be patient.
            如果你使用中文,请直接用中文提问。
            May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

            M 4 Replies Last reply Reply Quote 0
            • M Offline
              MJYC @veye_xumm
              last edited by

              @veye_xumm said in ESP32控制SC132相机硬件触发,通过树莓派保存图片到SD卡的一些问题:

              手动执行你的这个python脚本

              手动执行这个python脚本,必须要拍满20张图片再次运行,才能继续拍摄。但是我如果用while(1):这种写法,运行一次,不ctrl c退出,也是不能继续拍摄的。
              报错为:VIDIOC_S_FMT:failed:Device or resource busy
              VIDIOC_REQBUFS returned -1(Device or resource busy)

              当然自启动问题更多,根本不会等待硬件触发,直接拍完20张。有一次,我试了一下while(1):这种写法,一直存零kb的空图。

              1 Reply Last reply Reply Quote 0
              • M Offline
                MJYC @veye_xumm
                last edited by

                @veye_xumm 可以可以提供一下解决方案,实现自启动,4个相机硬件触发同步拍摄。真的很急,我的微信号YMJXIAOBAI

                1 Reply Last reply Reply Quote 0
                • M Offline
                  MJYC @veye_xumm
                  last edited by

                  @veye_xumm
                  我下午有空的,可否帮忙解决一下这个困扰我两周的问题吗

                  veye_xummV 1 Reply Last reply Reply Quote 0
                  • M Offline
                    MJYC @veye_xumm
                    last edited by

                    @veye_xumm

                    我觉得如果代码中,最开始能清楚所有占用设备的进程,然后开始拍照,这样不管是断电还是提前结束,都不影响下次代码运行。(我运行代码的时候,发现没有结束进程(比如没拍够,或者断电了)下次再拍,会报failed:Device or resource busy。

                    1 Reply Last reply Reply Quote 0
                    • veye_xummV Offline
                      veye_xumm @MJYC
                      last edited by

                      @mjyc
                      我很理解你的心情。说实话我们对应用层开发的经验比较有限,所以只能提供给你一些建议。

                      如果是我们自己开发这个功能的话,倾向于:

                      1. 如果对C语言比较熟练,启动例程使用yavta的源码进行修改。
                      2. 如果对C不熟,用python,也会参考这个源码修改。

                      而不是在用一个简单的脚步去调用v4l2-ctl命令取图。这种子进程的方式会忽略掉大量的异常状态和错误状态,导致程序的失控。

                      Questions will be answered as soon as possible, please be patient.
                      如果你使用中文,请直接用中文提问。
                      May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                      M 1 Reply Last reply Reply Quote 0
                      • M Offline
                        MJYC @veye_xumm
                        last edited by

                        @veye_xumm
                        好的好的,感谢您的建议

                        1 Reply Last reply Reply Quote 0

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