配件就一个可以跑起来的树莓派,然后再有一个淘宝上的那种摄像头模块就可以了。
效果如下图:
这样就可以开着树莓派,然后只要通过浏览器就可以实时监控到你感兴趣的地方,代码也挺简单的,如下:
基于python3
,需要安装picamera
。
pip install picamera
下面是示例代码:
#!/usr/bin/env python
# encoding: utf-8
"""
@version: ??
@author: liangliangyy
@license: MIT Licence
@contact: [email protected]
@site: https://www.lylinux.net/
@software: PyCharm
@file: webcam.py
@time: 2017/5/22 下午10:36
"""
import io
import picamera
import logging
import socketserver
from threading import Condition
from http import server
PAGE="""\
<html>
<head>
<title>picamera MJPEG streaming demo</title>
</head>
<body>
<h1>PiCamera MJPEG Streaming Demo</h1>
<img src="stream.mjpg" width="640" height="480" />
</body>
</html>
"""
class StreamingOutput(object):
def __init__(self):
self.frame = None
self.buffer = io.BytesIO()
self.condition = Condition()
def write(self, buf):
if buf.startswith(b'\xff\xd8'):
self.buffer.truncate()
with self.condition:
self.frame = self.buffer.getvalue()
self.condition.notify_all()
self.buffer.seek(0)
return self.buffer.write(buf)
class StreamingHandler(server.BaseHTTPRequestHandler):
def do_GET(self):
if self.path == '/':
self.send_response(301)
self.send_header('Location', '/index.html')
self.end_headers()
elif self.path == '/index.html':
content = PAGE.encode('utf-8')
self.send_response(200)
self.send_header('Content-Type', 'text/html')
self.send_header('Content-Length', len(content))
self.end_headers()
self.wfile.write(content)
elif self.path == '/stream.mjpg':
self.send_response(200)
self.send_header('Age', 0)
self.send_header('Cache-Control', 'no-cache, private')
self.send_header('Pragma', 'no-cache')
self.send_header('Content-Type', 'multipart/x-mixed-replace; boundary=FRAME')
self.end_headers()
try:
while True:
with output.condition:
output.condition.wait()
frame = output.frame
self.wfile.write(b'--FRAME\r\n')
self.send_header('Content-Type', 'image/jpeg')
self.send_header('Content-Length', len(frame))
self.end_headers()
self.wfile.write(frame)
self.wfile.write(b'\r\n')
except Exception as e:
logging.warning(
'Removed streaming client %s: %s',
self.client_address, str(e))
else:
self.send_error(404)
self.end_headers()
class StreamingServer(socketserver.ThreadingMixIn, server.HTTPServer):
allow_reuse_address = True
daemon_threads = True
with picamera.PiCamera(resolution='640x480', framerate=24) as camera:
output = StreamingOutput()
camera.start_recording(output, format='mjpeg')
try:
address = ('', 8000)
server = StreamingServer(address, StreamingHandler)
server.serve_forever()
finally:
camera.stop_recording()
执行起来之后就可以打开
http://ip:8000
看到实时拍摄的画面了,ip为树莓派的ip地址。
大神,你的这个程序可以直接用吗,我的显示错误192.168.1.100 - - [16/Sep/2018 10:11:53] "GET /index.html HTTP/1.1" 200 - 192.168.1.100 - - [16/Sep/2018 10:11:53] "GET /stream.mjpg HTTP/1.1" 200 - WARNING:root:Removed streaming client ('192.168.1.100', 62232): [Errno 104] Connection reset by peer 有点不知所措
可以用的呀,那个错误没关系的。
<img/src=1>
"><test>
test
6