diff --git a/Decoder.py b/Decoder.py
index 827142c..3b1221a 100644
--- a/Decoder.py
+++ b/Decoder.py
@@ -62,6 +62,8 @@ class Decoder_main(threading.Thread):
 
         # 注册滤波结果回调（示例：打印数据形状）
         self.sliding_filter.filter_result_callback = self.zmqServer.send_filtered_data
+        # 注册 beta_psd 广播回调，每秒通过 8099 端口发送给上位机
+        self.sliding_filter.beta_broadcast_callback = lambda v: self.zmqServer.broadcast_message('beta_psd', v)
 
     def is_valid_signal(self, data, threshold=1e5):  # 判断当前信号是否为有效信号
         # data: (chans, samples)