A suspended rail-type automatic cruise monitoring device fix comprehensive greenhouse information, comprising a rail assembly, a travelling mechanism, a sliding platform, a multi-sensor system, and a control cabinet assembly, wherein, the rail assembly mainly comprises a slide rail and a toothed rack that are fixed to a structural cross-beam of the greenhouse respectively;
- the travelling mechanism comprises a gear rack A, a gear rack B, a deceleration motor, a gear shaft, gears, a bearing, and a photoelectric encoder, wherein the deceleration motor is connected to one end of the gear shaft by a spline;
- the gears are fixed on the gear shaft and mesh with the toothed rack, the other end of the gear shaft is mounted on the bearing and the bearing is connected to the gear rack A by bolts;
- the gear rack A is connected to the gear rack B by bolts;
- top threads of the shaft of the photoelectric encoder are connected with the gear shaft to realize calculation and detection of travelling distance and position;
- the sliding platform is comprised of a lifting mechanism and an electronically-controlled rotating head, comprising four sets of pulleys, a terminal limit switch, a suspension, a lifting mechanism, an electronically-controlled rotating head, a power supply of the lifting mechanism, and a DSP movement controller, wherein the pulleys are fixed to the suspension and mounted in the slide channel of the slide rail, the suspension is fixed to the top of the lifting mechanism, the terminal limit switch is fixed to the top of the suspension at two end positions in the forward/backward travelling direction, the bottom of the lifting mechanism is fixed to the electronically-controlled rotating head, and the DSP movement controller is used to control the forward and backward movement of the sliding platform and the up and down movement of the lifting mechanism;
- the power supply of the lifting mechanism supplies power to the sliding platform;
- the multi-sensor system comprises a light intensity sensor, a laser ranging sensor, an infrared temperature measurement sensor, and temperature and humidity sensors, and a binocular multi-function imaging system, wherein, a sensor bracket A and a sensor bracket B are mounted on the two sides o the bottom end of the electronically-controlled rotating head respectively;
- the binocular multi-functional imaging system comprises a visible light multi-functional imaging system and a near-infrared multi-functional imaging system, and is fixed on the sensor bracket A, with the viewing fields facing downward;
- a set of front optical filters for visible light is mounted on the front end of the visible light multi-function imaging system, configured to acquire characteristic image information of crop nutrition;
- a set of front optical filters for near-infrared light is mounted on the front end of the near-infrared multi-functional imaging system, to acquire characteristic image information of water stress in the crops;
- wherein the visible light multi-functional imaging system and the near-infrared multi-functional imaging system are configured as a multiplexing camera for binocular vision matching, to realize three-dimensional imaging and measurement of plant height and crown width area of the crops;
- the infrared temperature measurement sensor, the temperature and humidity sensor, the laser ranging sensor, and the light intensity sensor are fixed on the two sides of the sensor bracket B in an overlooking position, with a vertically downward detection direction;
- the control cabinet portion comprises a PC and a power supply of the PC, wherein the PC is connected with the photoelectric encoder, the DSP movement controller and the multi-sensor system.