Example explanation 14-WiFi-Shield->mjpeg_streamer_fir
# MJPEG Streaming with FIR
#
# 这个例子展示了如何将MJPEG流式传输到FIREFOX浏览器(IE和Chrome不起作用)。只需输入您的网络SSID和KEY,然后连接到从ifconfig输出的IP地址/端口。
import sensor, image, network, usocket, fir
SSID='' # Network SSID
KEY='' # Network key
HOST = '' # 使用第一个可用的端口
PORT = 8000 # 任意非特权端口
# 重置传感器
sensor.reset()
# 设置传感器的设置
sensor.set_contrast(1)
sensor.set_brightness(1)
sensor.set_saturation(1)
sensor.set_gainceiling(16)
sensor.set_framesize(sensor.QQVGA)
sensor.set_pixformat(sensor.RGB565)
# 初始化热成像传感器
fir.init()
# 初始化wlan模块并连接到网络
print("Trying to connect... (may take a while)...")
wlan = network.WINC()
wlan.connect(SSID, key=KEY, security=wlan.WPA_PSK)
# 我们现在通过DHCP应该有一个有效的IP
print(wlan.ifconfig())
# 创建服务器套接字
s = usocket.socket(usocket.AF_INET, usocket.SOCK_STREAM)
# 绑定和监听
s.bind((HOST, PORT))
s.listen(5)
# 将超时设置为1秒
s.settimeout(1.0)
print ('Waiting for connections..')
client, addr = s.accept()
print ('Connected to ' + addr[0] + ':' + str(addr[1]))
# 从客户端读取请求
data = client.recv(1024)
# 应该在这里解析客户端请求
# 发送多部分header
client.send("HTTP/1.1 200 OK\r\n" \
"Server: OpenMV\r\n" \
"Content-Type: multipart/x-mixed-replace;boundary=openmv\r\n" \
"Cache-Control: no-cache\r\n" \
"Pragma: no-cache\r\n\r\n")
# 开始流媒体图像
while (True):
image = sensor.snapshot()
# 捕获FIR数据
# ta: Ambient temperature 环境温度
# ir: Object temperatures (IR array) 物体温度(IR阵列)
# to_min: Minimum object temperature 最小物体温度
# to_max: Maximum object temperature 最大物体温度
ta, ir, to_min, to_max = fir.read_ir()
# 缩放图像并使用framebuffer对其进行融合
fir.draw_ir(image, ir)
# 绘制环境温度、最小温度和最大温度。
image.draw_string(0, 0, "Ta: %0.2f"%ta, color = (0xFF, 0x00, 0x00))
image.draw_string(0, 8, "To min: %0.2f"%to_min, color = (0xFF, 0x00, 0x00))
image.draw_string(0, 16, "To max: %0.2f"%to_max, color = (0xFF, 0x00, 0x00))
cimage = image.compressed(quality=90)
client.send("\r\n--openmv\r\n" \
"Content-Type: image/jpeg\r\n"\
"Content-Length:"+str(cimage.size())+"\r\n\r\n")
client.send(cimage)
client.close()
Singtown Technology OpenMV official Chinese document function explanation:
Singtown Technology OpenMV official Chinese document function explanation:
Singtown Technology OpenMV official Chinese document function explanation: