A kind of alarming device of wheelchair, wheelchair occupant pass in and out capable of emitting warning sound when the doorway of classroom. It include a radio RF identification label, a radio frequency identification receiver, an alarm device and a microprocessor. The radio RF identification label is installed on the wheelchair. The radio frequency identification receiver, is installed on one. The alarm device and a microprocessor, it is electrically connected respectively with the radio frequency identification receiver, when wheelchair is by the door, which then issues signal to the radio frequency identification receiver, via the control of the microprocessor, warning sound is issued to start the alarm device.一種輪椅之警示裝置，輪椅乘坐者進出教室門口時可發出警示聲響。包含有一無線射頻辨識標籤、一無線射頻辨識接收器、一警報器及一微處理器。該無線射頻辨識標籤，裝設在該輪椅上。該無線射頻辨識接收器，裝設在一門上。該警報器及一微處理器，分別與該無線射頻辨識接收器電連接，當輪椅通過該門，該無線射頻辨識標籤則發出訊號至該無線射頻辨識接收器，經由該微處理器之控制，以啟動該警報器發出警示聲響。
