---
id: "a42566e46c7cc90a"
title: "AHD摄像头 — LPA3588 v1.3.3 documentation"
url: "http://wiki.neardi.com/wiki/LPA3588/zh_CN/docs/module/ahd_camera.html"
favicon: "http://wiki.neardi.com/favicon.ico"
tags: []
createdAt: "2026-03-27T03:34:01.857Z"
updatedAt: "2026-03-27T03:36:17.135Z"
contentType: "markdown"
version: 1
deleted: true
publishedTime: "2026-03-27T03:34:01.842Z"
---

# AHD摄像头[](#ahd "Permalink to this heading")

支持8路航插接口AHD摄像头输入[点击购买](https://item.taobao.com/item.htm?spm=a1z10.5-c-s.w4002-24652054011.15.452135f51yoyO7&id=713917157868)，每路支持`720/1080p@25/30fps`分辨率。

## 电源适配器[](#id1 "Permalink to this heading")

![../../_images/ahd-power.png](http://wiki.neardi.com/wiki/LPA3588/zh_CN/_images/ahd-power.png)

## AHD摄像头连接图片[](#id2 "Permalink to this heading")

![../../_images/ahd-connect.png](http://wiki.neardi.com/wiki/LPA3588/zh_CN/_images/ahd-connect.png)

## 更新固件[](#id3 "Permalink to this heading")

`20230314`版本之前默认不带AHD\*8功能，通过`uname -a`查询版本；

若不符合，烧录 [最新标准固件](http://neardi.com/cms/index/productsd.html?id=9&title=LPA3588) 烧录方法参阅 [《使用Type-C线升级固件》](http://wiki.neardi.com/wiki/LPA3588/zh_CN/docs/upgrade.html)一章。

## AHD摄像头对应设备节点[](#id4 "Permalink to this heading")

<table><thead><tr><th>AHD</th><th>设备节点</th></tr></thead><tbody><tr><td>AHD1</td><td>/dev/video11</td></tr><tr><td>AHD2</td><td>/dev/video12</td></tr><tr><td>AHD3</td><td>/dev/video13</td></tr><tr><td>AHD4</td><td>/dev/video14</td></tr><tr><td>AHD5</td><td>/dev/video3</td></tr><tr><td>AHD6</td><td>/dev/video2</td></tr><tr><td>AHD7</td><td>/dev/video1</td></tr><tr><td>AHD8</td><td>/dev/video0</td></tr></tbody></table>

## 修改测试脚本[](#id5 "Permalink to this heading")

修改`/rockchip-test/camera/camera_rkisp_test.sh` 打开`camera_rkisp_test.sh`，然后去掉里面的最后一行后加入：

```
DISPLAY=:0.0 gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,format=NV12,width=640,height=480, framerate=30/1 ! fpsdisplaysink&
gst-launch-1.0 v4l2src device=/dev/video1 ! video/x-raw,format=NV12,width=640,height=480, framerate=30/1 ! fpsdisplaysink &
gst-launch-1.0 v4l2src device=/dev/video2 ! video/x-raw,format=NV12,width=640,height=480, framerate=30/1 ! fpsdisplaysink &
gst-launch-1.0 v4l2src device=/dev/video3 ! video/x-raw,format=NV12,width=640,height=480, framerate=30/1 ! fpsdisplaysink &
gst-launch-1.0 v4l2src device=/dev/video11 ! video/x-raw,format=NV12,width=640,height=480, framerate=30/1 ! fpsdisplaysink &
gst-launch-1.0 v4l2src device=/dev/video12 ! video/x-raw,format=NV12,width=640,height=480, framerate=30/1 ! fpsdisplaysink &
gst-launch-1.0 v4l2src device=/dev/video13 ! video/x-raw,format=NV12,width=640,height=480, framerate=30/1 ! fpsdisplaysink &
gst-launch-1.0 v4l2src device=/dev/video14 ! video/x-raw,format=NV12,width=640,height=480, framerate=30/1 ! fpsdisplaysink
```

若单独测试一路AHD，务必加上sudo执行：

```
sudo gst-launch-1.0 v4l2src device=/dev/video11 ! video/x-raw,format=NV12,width=640,height=480, framerate=30/1 ! fpsdisplaysink
```

## 验证测试脚本[](#id6 "Permalink to this heading")

```
sudo /rockchip-test/camera/camera_rkisp_test.sh
```

执行成功结果：

```
neardi@LPA3588:~$ sudo /rockchip-test/camera/camera_rkisp_test.sh
Start RKISP Camera Preview!
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Setting pipeline to PAUSED ...
...
Redistribute latency...
0:22:57.3 / 99:99:99.
```

![../../_images/ahd-show.png](http://wiki.neardi.com/wiki/LPA3588/zh_CN/_images/ahd-show.png)

## FAQ[](#faq "Permalink to this heading")

### AHD摄像头pin脚如何定义的？[](#ahdpin "Permalink to this heading")

![../../_images/ahd-spec.png](http://wiki.neardi.com/wiki/LPA3588/zh_CN/_images/ahd-spec.png)

### AHD摄像头为什么不出图？[](#id7 "Permalink to this heading")

#### 简单排查[](#id8 "Permalink to this heading")

*   摄像头确保是`720/1080p@25/30fps`分辨率。
    
*   8路摄像头使用同一分辨率和帧率；不要混用，例如AHD1接720p，AHD2接1080p。
    
*   不能热插拔。
    
*   若固件是自行编译的，确保SDK升级到最新的，`V4.0`及以上。
    
*   检查电源，使用`DC 9-36V`电源。
    
*   测试Neardi配套的摄像头，再对比自行购买的摄像头。
    

#### 抓图排查[](#id9 "Permalink to this heading")

使用v4l2-ctl工具抓图测试

```
# AHD1抓图
v4l2-ctl -d /dev/video11  --set-fmt-video=width=1920,height=1080,pixelformat=NV12  --stream-mmap=3  --stream-skip=3  --stream-to=/tmp/ahd.out  --stream-count=1  --stream-poll
```

抓图正常返回结果，否则为异常：

```
<<<<
```

### 有没有C++的demo？[](#c-demo "Permalink to this heading")

参考 [neardi\_cam\_demo](https://gitee.com/neardi-dev/neardi_cam_demo)
