A suspended rail-type automatic cruise monitoring device for 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 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 first gear rack, a second gear rack, 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 a toothed rack, an other end of the gear shaft is mounted on the bearing, and the bearing is connected to the first gear rack by bolts;
- the first gear rack is connected to the second gear rack 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 (Digital Signal Processor) movement controller, wherein the pulleys are fixed to the suspension and mounted in a slide channel of the slide rail, the suspension is fixed to a top of the lifting mechanism, the terminal limit switch is fixed a top of the suspension at two end positions in a forward/backward travelling direction, a bottom of the lifting mechanism is fixed to an electronically-controlled rotating head, and the DSP movement controller is used to control a forward and backward movement of an 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 a temperature and humidity sensor, and a binocular multi-function imaging system, wherein, a first sensor bracket and a second sensor bracket are mounted on two sides of a 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 first sensor bracket, with viewing fields facing downward;
- a set of front optical filters for visible light is mounted on a 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 crop;
- 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, a laser ranging sensor, and a light intensity sensor are fixed on two sides of the second sensor bracket in an overlooking position, with a vertically downward detection direction;
- the control cabinet assembly comprises a PC (Personal Computer) 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.