监控话题

当要对特定 Topic 查询时，可使用如下命令：

监听 Sensor监听 Gripper

ezros topic -e OG000285 -t 30

终端打印信息如下：

监听 Sensor 输出监听 Gripper 输出未能检测话题

监听话题: OG000285
持续时间: 30 秒
按 Ctrl+C 停止
============================================================
成功订阅话题 OG000285 (类型: BytesMessage)
开始监听话题 OG000285...

[02:51:54] [OG000285]: {<OutputType.Depth: 3>: array([[0.        , 0.        , 0.        , ..., 0.        , 0.        ,
        0.        ],
    [0.        , 0.        , 0.        , ..., 0.        , 0.        ,
        0.        ],
    [0.        , 0.        , 0.        , ..., 0.        , 0.        ,
        0.        ],
    ...,
    [0.        , 0.        , 0.        , ..., 0.00699991, 0.00700688,
        0.00700688],
    [0.        , 0.        , 0.        , ..., 0.00699412, 0.00703006,
        0.00703006],
    [0.        , 0.        , 0.        , ..., 0.00699401, 0.00703049,
        0.00703049]], dtype=float32), <OutputType.Difference: 2>: array([[[109, 110, 107],
        [108, 110, 108],
        [107, 111, 108],
        ...,
        [111, 112, 113],
        [118, 114, 120],
        [121, 115, 123]],

        ...

    [[107, 106, 109],
        [108, 107, 110],
        [110, 109, 110],
        ...,
        [110, 110, 108],
        [110, 110, 110],
        [110, 109, 110]]], dtype=uint8)}
[02:51:54] [OG000285]: {<OutputType.Depth: 3>: array([[0.        , 0.        , 0.        , ..., 0.        , 0.        ,
        1.        ],
    [0.        , 0.        , 0.        , ..., 0.        , 0.        ,
        2.        ],
    [0.        , 0.        , 0.        , ..., 0.        , 0.        ,
        3.        ],
    ...,
    [0.        , 0.        , 0.        , ..., 0.00699991, 0.00700688,
        0.00700688],
    [0.        , 0.        , 0.        , ..., 0.00699412, 0.00703006,
        0.00703006],
    [0.        , 0.        , 0.        , ..., 0.00699401, 0.00703049,
        0.00703049]], dtype=float32), <OutputType.Difference: 2>: array([[[109, 110, 107],
        [108, 110, 108],
        [107, 111, 108],
        ...,
        [110, 110, 108],
        [110, 110, 110],
        [110, 109, 110]]], dtype=uint8)}

tips

• topic 子命令，表明本次操作是调用某个话题；

• –echo/-e 必选参数，指定要监听的 Topic 名称；

• –timeout/-t 可选参数，指定监听的持续时间，默认为 30 秒。