diff --git a/src/analyzer/framecache.py b/src/analyzer/framecache.py
new file mode 100644
--- /dev/null
+++ b/src/analyzer/framecache.py
@@ -0,0 +1,12 @@
+from collections import deque
+
+
+class FrameCache:
+	def __init__(self,capacity=600): # 600 is enough for 10 min of 1 fps
+		self._capacity=capacity
+		self._cache=deque()
+
+	def put(self,frame):
+		if len(self._cache)>=self._capacity:
+			self._cache.popleft()
+		self._cache.append(frame)