找出基于树莓派csi摄像头实时仓库谷物计数和仓库温湿度和烟雾检测系统的代码
时间: 2023-06-18 13:05:35 浏览: 124
以下是基于树莓派CSI摄像头实时仓库谷物计数和仓库温湿度和烟雾检测系统的代码示例:
1. 谷物计数代码:
```python
import cv2
import numpy as np
# 设置阈值
threshold_value = 200
# 定义阈值回调函数
def threshold_callback():
# 读取图像
src = cv2.imread("grain.jpg")
# 灰度化
gray = cv2.cvtColor(src, cv2.COLOR_BGR2GRAY)
# 二值化
ret, binary = cv2.threshold(gray, threshold_value, 255, cv2.THRESH_BINARY)
# 寻找轮廓
contours, hierarchy = cv2.findContours(binary, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)
# 绘制轮廓
drawing = np.zeros(src.shape, dtype=np.uint8)
for i in range(len(contours)):
color = (0, 255, 0)
cv2.drawContours(drawing, contours, i, color, 1, cv2.LINE_8, hierarchy, 0)
# 计算谷物数量
count = len(contours)
print("Grain count:", count)
# 显示结果
cv2.imshow("Grain Count", drawing)
cv2.waitKey()
# 调用阈值回调函数
threshold_callback()
```
2. 温湿度检测代码:
```python
import Adafruit_DHT
# 设置传感器类型和引脚号
sensor = Adafruit_DHT.DHT11
pin = 4
# 读取温湿度数据
humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)
# 打印结果
if humidity is not None and temperature is not None:
print('Temperature: {0:0.1f} C Humidity: {1:0.1f} %'.format(temperature, humidity))
else:
print('Failed to read data from DHT11 sensor')
```
3. 烟雾检测代码:
```python
import RPi.GPIO as GPIO
import time
# 设置GPIO引脚号
GPIO.setmode(GPIO.BOARD)
GPIO.setup(11, GPIO.IN)
# 检测烟雾
while True:
if GPIO.input(11) == GPIO.HIGH:
print("Smoke detected!")
else:
print("No smoke detected.")
time.sleep(1)
```
请注意,这些代码只是示例代码,需要根据实际情况进行修改和适配。此外,还需要添加适当的硬件设备和传感器才能使这些代码正常工作。
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