8月22日，消防人员正在为76岁的胡长兰老人（右一）讲解火警报警装置的作用。当日，上海市闸北区消防支队派出消防官兵和工程技术人员，专程为辖区内的天目西街道70岁以上的独居老人家庭免费安装单点报警装置，一旦发生火灾，系统将自动鸣笛报警，提醒行动不便的老人及时逃生，也提醒周围邻居帮助救援。新华社记者 陈飞 摄     August 22，Firefighters are for the 76 - year - old HuChangLan old man（right）Explain the role of fire alarm system。On that day，The Shanghai zhabei area fire team sent fire officers and soldiers and engineering and technical personnel，Especially for within the jurisdiction of tianmu west street over the age of 70 old people who live alone family free installation single point alarm device，Once the fire，The system will automatically alarm horn，Remind action inconvenience old man escape in time，Also remind surrounding neighbors to help rescue。Xinhua news agency reporters ChenFei perturbation

    8月22日，消防人员为80岁的蔡惟老人（右一）安装火警报警装置。新华社记者 陈飞 摄     August 22，Fire fighters for the 80 - year - old tsai but the old man（right）Installation of fire alarm system。Xinhua news agency reporters ChenFei perturbation