Patient monitoring system

A patient movement monitoring system for a bed mattress having a first side, a second side, a head end side and a foot end, said system comprising:

• a first sensing device coupled at the first side of the bed mattress;
• a second sensing device coupled at the second side of the bed mattress;
• a third sensing device coupled at the head end side of the bed mattress;
• wherein said first sensing device, said second sensing device, and said third sensing device each include at least one of:
• an accelerometer configured to detect an intensity of patient movement in the bed mattress and provide an accelerometer output signal indicating said intensity;
• a gyroscope configured to detect an angle of the bed mattress and provide a gyroscope output signal indicating said angle;
• a vibration sensor configured to detect vibration of the bed mattress and provide a vibration output signal indicating said vibration;
• a fourth sensing device coupled at the underside of the bed mattress, said fourth sensing device comprising a pressure sensor array having one or more pressure sensors each configured to detect changes in pressure of the bed mattress and provide a pressure output signal indicating said pressure change;
• and
• a processing device in electronic communication with said first sensing device, said second sensing device, said third sensing device, and said fourth sensing device, said processing device configured to receive the acceleration output signal from said accelerometer and generate a first alert if said accelerometer does not detect a minimum intensity of patient movement within a first predetermined time period;
• said processing device configured to receive the gyroscope output signal from said gyroscope and generate a second alert if said gyroscope does not detect a threshold patient movement within a second predetermined time period;
• said processing device configured to receive a vibration output signal from said vibration sensor and generate a third alert if said vibration sensor does not detect a threshold vibration within a third predetermined time period;
• and said processing device configured to receive a pressure output signal from said pressure sensor array and generate a fourth alert if said one or more pressure sensors do not detect a change in pressure within a fourth predetermined time period.