The present invention relates to the technological field of civil engineering, particularly to a dust reduction device for building engineering. The device includes a water tank with a controller and a booster pump, a driving mechanism enabling the device to cross obstacles, an adjustable spray mechanism with a mist intercepting mechanism, and an environment detection mechanism. The dust reduction device comprising the above components can move along the enclosure barrier to a target position for spraying according to real time requirements. The adjustable spray mechanism is configured in such a way that, when the wind force is between the specified minimum value and maximum value, and the wind direction is opposite to the spray direction, the mist intercepting mechanism is activated to avoid water mist blowing outside the construction site by wind and affecting the normal passage of pedestrians.

The present invention relates to the technological field of civil engineering, particularly to a dust reduction device for building engineering. The device includes a water tank with a controller and a booster pump, a driving mechanism enabling the device to cross obstacles, an adjustable spray mechanism with a mist intercepting mechanism, and an environment detection mechanism. The dust reduction device comprising the above components can move along the enclosure barrier to a target position for spraying according to real time requirements. The adjustable spray mechanism is configured in such a way that, when the wind force is between the specified minimum value and maximum value, and the wind direction is opposite to the spray direction, the mist intercepting mechanism is activated to avoid water mist blowing outside the construction site by wind and affecting the normal passage of pedestrians.

An agricultural sprayer unit 700 and a spray deflecting mechanism 70 thereof for the sprayer unit 700 is provided. The agricultural sprayer unit 700 includes a control valve 702, a controller unit 703, a plurality of sprayer nozzles 704, a sprayer tank 706, a sprayer pump 708 and a spray deflecting mechanism 70. The spray deflecting mechanism 70 includes a spray defecting arrangement 72A and a collecting means 70T. The spray deflecting arrangement 70A is adapted to be moved between a deflecting position in which the spray deflecting arrangement 72A is adapted to deflect and re-direct unutilized dispensed fluid from at least one sprayer nozzle 704 to the collecting means 70T thereby restricting wastage of chemical agent/biological agent where the spraying is not required and also to restrict spraying of chemical agent/biological agent to healthy plants.

An automated mobile sprayer (AMS) is configured to apply stripes of fluid to target surfaces to coat those target surfaces with the fluid. A control module of the AMS controls movement and spraying by the AMS. The control module causes the AMS to follow a target surface based on distance data from distance sensors configured to detect the target surface. Voids in the surface can be detected by the distance sensors. The control module can drive the AMS across the voids based on navigation data generated by navigation sensors of the AMS. The control module. The control module identifies transitions between the target surface and other surfaces based on the distance data. The control module is configured to identify and distinguish between various transition types based on the distance data. The control module controls movement and spraying by the AMS relative to the transition based on the transition type identified.

An automated mobile sprayer (AMS) is configured to apply stripes of fluid to target surfaces to coat those target surfaces with the fluid. A control module of the AMS controls movement and spraying by the AMS. The control module causes the AMS to follow a target surface based on distance data from distance sensors configured to detect the target surface. Voids in the surface can be detected by the distance sensors. The control module can drive the AMS across the voids based on navigation data generated by navigation sensors of the AMS. The control module. The control module identifies transitions between the target surface and other surfaces based on the distance data. The control module is configured to identify and distinguish between various transition types based on the distance data. The control module controls movement and spraying by the AMS relative to the transition based on the transition type identified.

An automated mobile sprayer (AMS) (12) is configured to apply stripes of fluid to target surfaces to coat those target surfaces with the fluid. A control module (24) of the AMS (12) controls movement and spraying by the AMS. The control module (24) causes the AMS (12) to follow a target surface based on distance data from distance sensors configured to detect the target surface.

An automated mobile sprayer (AMS) (12) is configured to apply stripes of fluid to target surfaces to coat those target surfaces with the fluid. A control module (24) of the AMS (12) controls movement and spraying by the AMS. The control module (24) causes the AMS (12) to follow a target surface based on distance data from distance sensors configured to detect the target surface.

A retractable spray shield for agricultural use has a spray barrier; a two-part storage tube; a deployment and concealment drive having a motor, a drive shaft, and a quadrilateral linkage that in one direction deploys the spray barrier from the storage tube and in a second opposed direction conceals the spray barrier within the storage tube. The quadrilateral linkage is defined by a rotating arm; a pushing arm coupled to the drive shaft; the bottom of a unit storage tube, and a transfer arm supporting the spray barrier. The spray barrier has a generally triangular and flaccid liquid barrier film, a pair of framing legs coupled to opposed edges of the liquid barrier film, and a spring configured to operatively stretch the pair of framing legs apart from each other and thereby expand the barrier film toward a planar, generally triangular geometry when deployed.

A retractable spray shield for agricultural use has a spray barrier; a two-part storage tube; a deployment and concealment drive having a motor, a drive shaft, and a quadrilateral linkage that in one direction deploys the spray barrier from the storage tube and in a second opposed direction conceals the spray barrier within the storage tube. The quadrilateral linkage is defined by a rotating arm; a pushing arm coupled to the drive shaft; the bottom of a unit storage tube, and a transfer arm supporting the spray barrier. The spray barrier has a generally triangular and flaccid liquid barrier film, a pair of framing legs coupled to opposed edges of the liquid barrier film, and a spring configured to operatively stretch the pair of framing legs apart from each other and thereby expand the barrier film toward a planar, generally triangular geometry when deployed.