Safety monitoring system for people on hospital bed or nursed bedrid people

The invention discloses a safety monitoring system for people on hospital beds or nursed bedrid people. The system is characterized by comprising a weighing sensor fixed on bed feet and used for obtaining the weight of a bed; a storage unit used for storing a minimum weight threshold value Z1; and a master control unit. The master control unit is respectively in data connection with the weighing sensor and the storage unit and is used for comparing the weight of the bed transmitted back from the weighing sensor in real time with the minimum weight threshold value Z1 stored in the storage unit, and sending a bedrid people bed-leaving signal to the outside when the weight of the bed is smaller than the minimum weight threshold value Z1. Based on the system, on the premise that the lying comfort level of a nursed person on the bed is not influenced at all, whether the person is still on the bed or not can be accurately judged. By means of a communication unit and an alarm unit, the dangerous information of the person on the bed, that might occur or has been occurred, is timely transmitted to corresponding people. Therefore, the dangerous condition of the person on the bed can be timely acquired and treated. The system can be widely applied to social welfare institutes, elder-nursing centers or hospitals.