Bio-floating bed with on-line monitoring and intelligent remote alarming functions, and measurement and control method

The invention discloses a bio-floating bed with on-line monitoring and intelligent remote alarming functions, and a measurement and control method. The bio-floating bed mainly comprises a color sensor, an infrared transmitter, an infrared receiver, an illumination sensor, an atmosphere temperature and humidity sensor and a single-chip microcomputer analysis controller, wherein the infrared receiver and the infrared transmitter keep in the same level height; a soil temperature and humidity sensor and a conductivity sensor are inserted into a nutrient soil layer; and a dissolved oxygen sensor, an ammonia nitrogen sensor and a pH (potential of hydrogen) sensor are inserted into water. The sensors are connected with the single-chip microcomputer analysis controller, monitor parameters such as dissolved oxygen, pH value, ammonia nitrogen, soil temperature and humidity and a yellow/green leaf area ratio, and compare the parameters with preset thresholds of the parameters, so that a condition of the bio-floating bed