AERIAL SENSOR AND MANIPULATION PLATFORM FOR FARMING AND METHOD OF USING SAME
20220240494 · 2022-08-04
Inventors
Cpc classification
A01G25/167
HUMAN NECESSITIES
B25J19/0058
PERFORMING OPERATIONS; TRANSPORTING
A01M7/0082
HUMAN NECESSITIES
A01G13/10
HUMAN NECESSITIES
A01G9/24
HUMAN NECESSITIES
G01D21/02
PHYSICS
G01S17/42
PHYSICS
A01G3/00
HUMAN NECESSITIES
International classification
A01M7/00
HUMAN NECESSITIES
A01G13/10
HUMAN NECESSITIES
G01D21/02
PHYSICS
G01R19/00
PHYSICS
Abstract
A robotic sensor and manipulation platform for farming is disclosed, having a robotic base and one or more exchangeable robotic sensing and manipulation tips deployable from the robotic base to commanded positions in a plant growth area. The robotic sensing and manipulation tips having a plurality of sensors adapted to detect and monitor plant health and growth conditions, and a computer-based control system configured analyze sensor data and provide analyzed results to the farmer or producer.
Claims
1. A robotic sensor and manipulation platform configured to connect directly or indirectly to an aerial support and positioning system, the robotic sensor and manipulation platform comprising: a robotic base connected to and moved to command positions by the aerial support and positioning system; at least one sensing and manipulation tip deployable from the robotic base, comprising: one or more sensors selected from the set: at least one camera taking images; at least one distance sensor detecting distance to nearby plants and objects; at least one temperature sensor; at least one air quality sensor; at least one airflow sensor, at least one light intensity and/or light spectrum sensor; at least one tip orientation detection means, detecting rotation orientation of the sensing and manipulation tip relative to the robotic base; and at least one humidity sensor; at least one CO.sub.2 sensor; at least one fluorescence sensor, fluorescence filter or filter cube; a tip positioning mechanism having a motor drive responsive to positioning commands from a control system, the tip positioning mechanism arranged on the robotic base and connecting the sensing and manipulation tip to the robotic base, the tip positioning mechanism operable to move the sensing and manipulation tip to commanded positions above or in the plant canopy.
2. The robotic sensor and manipulation platform according to claim 1, further comprising: one or more manipulation attachments configured to detachably connect to the sensing and manipulation tip of the manipulation platform, the one or more manipulation attachments include at least one of: a cutting device operable by the control system to trim, prune or cut plant material from plants in a geometric plant growth area; a handling device operable by the control system to hold, grasp or stabilize certain areas of a plant while deriving further measurements; a spray device operable by the control system and having one or more directional spray nozzles; a needle device operable by the control system to derive plant measurements beneath an outer plant surface, wherein the needle device includes a plant sap measuring device; an extensible arm operable by the control system, the extensible arm having either folding arm sections or a telescoping arm sections, wherein one or more manipulation attachments are selectively and detachably connected to the extensible arm under control of the control system.
3. The robotic sensor and manipulation platform according to claim 2, wherein the one or more manipulation attachments are provided with at least one of the one or more sensors of claim 1.
4. The robotic sensor and manipulation platform according to claim 2, wherein at least one of the one or more directional spray nozzles is configured to have a controlled spraying direction controlled by the control system.
5. The robotic sensor and manipulation platform according to claim 4, wherein the one or more directional spray nozzles are individually actuated and controlled by the control system.
6. The robotic sensor and manipulation platform according to claim 1, wherein the at least one sensing and manipulation tip is a plurality of functionally different and exchangeable sensing and manipulation tips, further including at least one sensing and manipulation tip selected from the group consisting of: a cutting device operable by the control system to trim, prune or cut plant material from plants in a geometric plant growth area; a handling device to hold, grasp or stabilize certain areas of a plant while deriving further measurements; a spray device having one or more directional spray nozzles; a needle device to derive plant measurements beneath an outer plant surface, wherein the needle device includes a plant sap measuring device; and an extensible arm controlled by the control system, the extensible arm having either folding arm sections or a telescoping arm sections; wherein the plurality of sensing and manipulation tips are each selectively and detachably from the robotic sensor and manipulation platform under control of the control system such that a different one of the plurality of sensing and manipulation tips is then selectively connected onto the robotic sensor and manipulation platform under control of the control system.
7. The robotic sensor and manipulation platform according to claim 6, wherein at least one of the one or more directional spray nozzles are configured to have a controlled spraying direction controlled by the control system.
8. The robotic sensor and manipulation platform according to claim 7, wherein the one or more directional spray nozzles are each actuated and controlled individually by the control system, having controlled spray on, spray off and/or spray direction controlled by the control system.
9. The robotic sensor and manipulation platform according to claim 1, further including: a mechanical self-cleaning mechanism configured to wipe clean or wipe-off the tip positioning mechanism while it drives upwards towards the robotic base.
10. The robotic sensor and manipulation platform according to claim 1, further comprising: a force detection sensor or a visual sensor in communication with the control system and detecting forces applied on the tip positioning mechanism or the robotic sensor and manipulation platform for detecting encountered obstacles or entanglements of the sensing and manipulation tip.
11. The robotic sensor and manipulation platform according to claim 1, wherein at least one of the sensing and manipulation tips is a bicone sensing and manipulation tip having an arcuate, or semi-circular, viewing/sensing slot or window provided in an outer wall of the bicone sensing and manipulation tip, the robotic sensor and manipulation platform further comprising: a rotating disc rotatably mounted in an interior of the in the bicone sensing and manipulation tip, the rotating disc operatively coupled to and controlled by the control system to rotate about an axis of rotation to positions commanded by the control system; wherein the rotating disc is rotated in a plane substantially aligned with or proximate to the viewing/sensing slot or window of the bicone sensing and manipulation tip; at least one of the at least one camera is arranged on and is rotated in unison with the rotating disc to position the at least one camera at control system commanded viewpoint positions along an arcuate length of the viewing/sensing slot, under control of the control system; wherein, at any point in time, the rotating disc with the at least one camera can be rotated by the control system to expose the at least one camera and record images at the commanded viewpoint positions in locations about or within the plant canopy.
12. The robotic sensor and manipulation platform according to claim 11, wherein the arcuate, or semi-circular, viewing/sensing slot or window is arranged substantially in a lower cone portion of the bicone sensing and manipulation tip; wherein an upper cone portion of the bicone sensing and manipulation tip has a protected upper region which is substantially enclosed and into which the viewing/sensing slot or window does not extend; wherein, at any time, the control system can rotate the rotating disc to move the at least one camera into the protected upper region such that the at least one camera is positioned away from the viewing/sensing slot or window, and thereby protected from dirt and scratches while deployed in or robotically moving about the plant canopy.
13. The robotic sensor and manipulation platform according to claim 11, wherein the bicone sensing and manipulation tip is rotatably coupled to the tip positioning mechanism by a pan joint which is responsive to the control system to rotate to commanded positions under control of the control system, the pan joint operatively coupled to the control system and controlled thereby to rotate the bicone sensing and manipulation tip about an axis of a tip suspension cable or tubular pipe sections of the tip positioning mechanism to enable a full 360 degree field of view from the at least one camera about the axis of the tip suspension cable or tubular telescoping pipe sections.
14. The robotic sensor and manipulation platform according to claim 11, wherein the rotating disc further includes at least one of the one or more sensors arranged thereon and rotated in unison with the rotating disc.
15. An aerial robotic sensor and manipulation system, comprising: a control system comprising one or more processors executing instructions stored on a non-volatile data store, wherein the instructions, when executed by the one or more processors, the control system is configured to autonomously operate the aerial robotic sensor and manipulation system; an aerial support and positioning system comprising: either: a plurality of aerial platform positioning cables each connected to and driven by a cable spooling device, the plurality of aerial platform positioning cables connected to and aerially supporting a robotic sensor and manipulation platform over or within a plant growth area, wherein the cable spooling device is motor driven cable, connected to, controlled by and responsive to commands from the control system; wherein the plurality of cable spooling devices are responsive to commands from the control system to controllably deploy or retract spooled lengths of the aerial platform positioning cable; and a plurality of cable support points carrying and supporting the platform position cables above the plant canopy, each cable support point fixed onto an elevated support structure at a fixed position above a top of a plant canopy, the cable support points arranged about or delimiting a 2D X-Y an outer boundary of a geometric plant growth area; or: a gantry aerial support and positioning device supporting and positioning the robotic sensor and manipulation platform above the plant growth area and having at, least one drive motor responsive to commands from the control system to move the robotic sensor and manipulation platform in X and/or Y and/or Z directions over the plant growth area to commanded positions; the aerial robotic sensor and manipulation system further comprising: a robotic sensor and manipulation platform connected onto, supported by and positioned by the aerial support and positioning system along control system commanded motion paths in an X-direction and/or Y-direction and/or Z-direction over the geometric plant growth area; wherein the robotic sensor and manipulation platform comprises: a robotic base connected to and moved to command positions by the aerial platform positioning cables or the gantry aerial X-Y support and positioning device; at least one sensing and manipulation tip deployable from the robotic base, comprising one or more sensors selected from the set: at least one camera taking images; at least one distance sensor detecting distance to nearby plants and objects; at least one temperature sensor; at least one air quality sensor; at least one airflow sensor; at least one light intensity and/or light spectrum sensor; at least one tip orientation detection means, detecting rotational orientation of the sensing and manipulation tip relative to the robotic base; at least one humidity sensor; at least one CO.sub.2 sensor; and at least one fluorescence sensor, fluorescence filter or filter cube; a tip positioning mechanism having a motor drive responsive to positioning commands from the control system, the tip positioning mechanism arranged on the robotic base and connecting the sensing and manipulation tip to the robotic base, the tip positioning mechanism operable under commands from the control system to move the sensing and manipulation tip in a substantially vertical or Z direction relative to the robotic base to commanded positions above or within the plant canopy.
16. The aerial robotic sensor and manipulation system according to claim 15, wherein at least one aerial platform positioning cable of the plurality of aerial platform positioning cables has an outer sheath which carries and encloses therein at least one of: at least one electric power conductors at least one network or data communication cable; at least one fluid supply tube, protectively enclosed within an interior of the at least one aerial platform positioning cable, so as to be wound and unwound from the cable spooling device with the platform positioning cable.
17. The aerial robotic sensor and manipulation system according to claim 15, further comprising: a resting platform arranged within or adjacent to the outer boundary of a geometric plant growth area and positioned at or above the plant canopy, the resting platform comprising: one or more exchangeable manipulation attachments configured to detachably connect to the robotic sensor and manipulation platform; wherein the control system controls the detachable connection and disconnection of the one or more manipulation attachments.
18. The aerial robotic sensor and manipulation system according to claim 15, further comprising: one or more manipulation attachments configured to detachably connect to the sensing and manipulation tip of the manipulation platform, the one or more manipulation attachments include at least one of: a cutting device operable by the control system to trim, prune or cut plant material from plants in a geometric plant growth area; a handling device operable by the control system to hold, grasp or stabilize certain areas of a plant while deriving further measurements; a spray device operable by the control system having one or more directional spray nozzles; a needle device operable by the control system to derive plant measurements beneath an outer plant surface, wherein the needle device includes a plant sap measuring device; an extensible arm operable by the control system having either folding arm sections or a telescoping arm sections, wherein one or more manipulation attachments are selectively and detachably connected to the extensible arm under control of the control system.
19. The aerial robotic sensor and manipulation system according to claim 18, wherein the one or more manipulation attachments are provided with at least one of the one or more sensors of claim 15.
20. The aerial robotic sensor and manipulation system according to claim 18, wherein at least one of the one or more directional spray nozzles have a controlled spraying direction which is controlled by the control system.
21. The aerial robotic sensor and manipulation system according to claim 20, wherein the one or more directional spray nozzles are actuated by and controlled individually by the control system.
22. The aerial robotic sensor and manipulation system according to claim 15, wherein the at least one sensing and manipulation tip is a plurality of sensing and manipulation tips, further including at least one sensing and manipulation tip selected from the group consisting of: a cutting device operable by the control system to trim, prune or cut plant material from plants in a geometric plant growth area; a handling device operable by the control system to hold, grasp or stabilize certain areas of a plant while deriving further measurements; a spray device operable by the control system having one or more directional spray nozzles; a needle device operable by the control system to derive plant measurements beneath an outer plant surface, wherein the needle device includes a plant sap measuring device; and an extensible arm controlled by the control system, the extensible arm having either folding arm sections or a telescoping arm sections; wherein the plurality of sensing and manipulation tips are individually selectively and detachably connected onto the robotic sensor and manipulation platform under control of the control system.
23. The aerial robotic sensor and manipulation system according to claim 22, wherein at least one of the one or more directional spray nozzles are provided with a controlled spraying direction controlled by the control system.
24. The aerial robotic sensor and manipulation system according to claim 23, wherein the one or more directional spray nozzles are each actuated and controlled individually by the control system, having controlled spray on, spray off and/or spray direction controlled by the control system.
25. The aerial robotic sensor and manipulation system according to claim 15, further including: a mechanical self-cleaning mechanism configured to wipe clean or wipe-off the tip positioning mechanism while it drives upwards towards the robotic base.
26. The aerial robotic sensor and manipulation system according to claim 15, further comprising: a force detection sensor or a visual sensor in communication with the control system and directly or indirectly detecting forces applied on the tip positioning mechanism or the robotic sensor and manipulation platform for detecting encountered obstacles or entanglements of the sensing and manipulation tip.
27. The aerial robotic sensor and manipulation platform according to claim 15, further comprising: a force detection or visual sensor in communication with the control system and directly or indirectly detecting forces applied on the tip positioning mechanism or the platform for detecting encountered obstacles or entanglements of the sensing and manipulation tip.
28. The aerial robotic sensor and manipulation platform according to claim 15, further comprising a force detection means in communication with the control system, detecting tension forces applied to at least one of the aerial platform positioning cables.
29. The aerial robotic sensor and manipulation platform according to claim 15, further including: a mechanical self-cleaning mechanism configured to wipe clean or wipe-off the sensing and manipulation tip, the mechanical self-cleaning mechanism located at a separate cleaning station accessible by the robotic sensor and manipulation platform within a work envelope of the robotic sensor and manipulation platform.
30. The aerial robotic sensor and manipulation platform according to claim 15, wherein the at least one distance sensor includes a LiDAR sensor detecting distance to nearby plants and objects.
31. A method for configuring a robotic sensor and manipulation platform to connect directly or indirectly to an aerial support and positioning system, the robotic sensor and manipulation platform manufactured using the step of: connecting a robotic base to the robotic sensor and manipulation platform moving the robotic base to command positions using the aerial support and positioning system; deploying at least one sensing and manipulation tip from the robotic base, comprising the steps: selecting one or more sensors from a set: taking images using at least one camera; detecting distance to nearby plants and objects using: at least one distance sensor; at least one temperature sensor; at least one air quality sensor; at least one airflow sensor, at least one light intensity and/or light spectrum sensor; at least one tip orientation detection means, detecting rotation orientation of the sensing and manipulation tip relative to the robotic base; and at least one humidity sensor; at least one CO.sub.2 sensor; and at least one fluorescence sensor, fluorescence filter or filter cube; using positioning commands from a control system for configuring a tip positioning mechanism having a motor drive, arranging the tip positioning mechanism on the robotic base and connecting the sensing and manipulation tip to the robotic base, where the tip positioning mechanism is operable to move the sensing and manipulation tip to commanded positions above or in the plant canopy.
32. A method for configuring a robotic sensor and manipulation platform so to recognize critical areas within the plant canopy comprising the steps of: determining locations in the plant canopy for measuring the presence of a microclimate; coarsely sampling the plant canopy at each of the locations to determine atmospheric conditions; collecting atmospheric data from each location and identifying critical areas; subsampling each of the critical areas to determine the critical areas requiring additional efforts; computing a heat map of the plant canopy showing the critical areas; and scheduling additional visits to the critical areas by the robotic sensor and manipulation platform for application of water, fertilizers, and/or pesticides.
33. A method for configuring a robotic sensor and manipulation platform for detecting bugs, pests and insects comprising the steps of: computing a plurality of locations to visit within a plant canopy; determining each one of the locations is above or within the plant canopy; moving the robotic sensor and manipulation platform to each location; utilizing at least one senor to determine if obstacles are present when the location is above the plant canopy; using a camera to take an image of the location; determining if bugs, pest and insects are present from the image; and reporting the presence of the bugs, pests or insects so the application of a pesticide can be scheduled in a future visit
34. A method of operating a robotic sensor and manipulation platform for trimming plants or obtaining plant measurements, comprising the steps of: determining targeted plant locations within the plant canopy plants where plants are to be sampled or trimmed; moving the at least one sensing and manipulation tip to a resting platform; attaching one of more manipulation attachments from the resting platform onto the at least one sensing and manipulation tip, the one or more manipulation attachments selected from the set: a cutting device operable by the control system to trim, prune or cut plant material from plants in a geometric plant growth area; a handling device operable by the control system to hold, grasp or stabilize certain areas of a plant while deriving further measurements; a spray device operable by the control system and having one or more directional spray nozzles; a needle device operable by the control system to derive plant measurements beneath an outer plant surface, wherein the needle device includes a plant sap measuring device; and/or an extensible arm operable by the control system, the extensible arm having either folding arm sections or a telescoping arm sections, wherein one or more manipulation attachments are selectively and detachably connected to the extensible arm under control of the control system; wherein for each plant to be sampled or trimmed the method further includes: computing a path plan for the moving the at least one sensing and manipulation tip above or within the plant canopy to access a next plant to be sampled or trimmed; executing the path plan moving the at least one sensing and manipulation tip with the one or more manipulation attachments into position to access the next plant to be sampled or trimmed; and performing plant trimming or obtaining plant sample measurements of the next plant to be sampled or trimmed.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0035] The accompanying Figures, where like reference numerals refer to identical or functionally similar elements throughout the separate views and which together with the detailed description below are incorporated in and form part of the specification, serve to further illustrate various embodiments and to explain various principles and advantages all in accordance with the present invention.
[0036] Features of the present invention, which are believed to be novel, are set forth in the drawings and more particularly in the appended claims. The invention, together with the further objects and advantages thereof, may be best understood with reference to the following description, taken in conjunction with the accompanying drawings. The drawings show a form of the invention that is presently preferred; however, the invention is not limited to the precise arrangement shown in the drawings.
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[0047] Skilled artisans will appreciate that elements in the figures are illustrated for simplicity and clarity and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the figures may be exaggerated relative to other elements to help to improve understanding of embodiments of the present invention.
DETAILED DESCRIPTION
[0048] Before describing in detail embodiments that are in accordance with the present invention, it should be observed that the embodiments reside primarily in combinations of method steps and apparatus components related to an autonomous computer controlled robotic aerial sensor and manipulation platform having exchangeable deployable sensing tips for farming. Accordingly, the apparatus components have been represented where appropriate by conventional symbols in the drawings, showing only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having the benefit of the description herein.
[0049] In this document, relational terms such as first and second, top and bottom, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms “comprises,” “comprising,” or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by “comprises . . . a” does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.
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[0052] A plurality of cable support points 38 are each securely fixed onto an elevated support structure 54 positioned about 4 corners of the plant growth area 40 and positioned at above the plant canopy of the plant growth area 40. The plurality of cable support points 38 are arranged outwardly away from the outer boundary 42 of the plant growth area 40 as a sufficient distance such that the robotic sensor and manipulation platform 10 reach all portions of the plant growth area 40. The cable support points 38 are each provided with cable spooling devices 36 and, in this illustration, shown arranged on the elevated support structure 54. In
[0053] The cable support points 38 are arranged at or outwardly from the 2D X-Y outer boundary 40 of the geometric plant growth area.
[0054] The cable spooling devices 36 preferably include an encoder in communication with the control system 32, the encoders changes in the deployed cable lengths such that the control system can coordinate the spooling and despoiling of the four cable spooling devices to achieve a desired travel path, robotic base elevation and cable tensioning of the aerial platform positioning cables.
[0055] In
[0056] As can be readily appreciated, the control system coordinated spooling and despoiling movements of each of the cable spooling devices 36 are necessarily coordinated by the control system 32, to successfully move the robotic base 14 along the desired path above the plant canopy 22 to the commanded position and elevation.
[0057] A tip positioning mechanism 20 is arranged in the robotic base and is responsive to commands from the control system to deploy the sensing and manipulation tip 16 at a control system commanded position below the robotic base 14.
[0058] The tip positioning mechanism 20 may be embodied as a cable supportively connecting the robotic base 14 to the sensing and manipulation tip 16, or alternately may be embodies as a plurality of tubular telescoping pipe sections 50 that extend from or collapse into each other, the tubular pipe sections retractable into each other so as to adjust an overall length of the tubular telescoping pipe sections to deploy the sensing and manipulation tip 16 at a control system commanded position below the robotic base 14.
[0059] As best seen in
[0060] As seen in
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[0065] As shown in
[0066] One or more cameras 72 for capturing images are arranged on and are rotated in unison with the rotating disc 94 to position the camera(s) 72 and lenses 104 at desired viewpoint positions along a length of the viewing/sensing slot. At any point in time, the rotating disc 94 with the camera(s) 72 can be rotated to expose the lenses 104 and record images from the respective viewpoints of interest above, about or within the plant canopy 22.
[0067] Advantageously, at any point in time, for example when the sensing and manipulation tip 16 is lowered into the plant canopy 22, the computer-based control system 32 may rotate the rotating disc 94 to move the camera(s) 72 into the protected upper region 102 such that the camera(s) are positioned away from the viewing/sensing slot or window 100. In this way, the camera(s) 72 can be protected from dirt and scratches while deployed in or robotically moving about the plant canopy 22.
[0068] As discussed earlier, the bicone sensing and manipulation tip 16 may be rotatably coupled to the tip suspension cable or tubular telescoping pipe sections 56 by a pan joint 92. The pan joint 92 is operatively coupled to the computer-based control system 32 and controlled to rotate the sensing and manipulation tip 16 about an axis of the tip suspension cable or tubular telescoping pipe sections 56. In this way the sensing and manipulation tip 16 can be rotated to enable a full 360 deg field of view about the axis of the tip suspension cable or tubular telescoping pipe sections 56.
[0069] Advantageously, the rotating disc 94 may further have arranged thereon any one of or a variety of the sensors 96 (shown schematically) discussed herein or below, for example: the distance sensor(s) or LiDAR sensor(s) 48, air flow sensor(s) 78, air quality sensors 80, light intensity and/or light spectrum sensor(s) 82, humidity sensor 106, CO.sub.2 sensor(s) 76, fluorescence sensor 90, for example, or other sensors as would be known to those of skill in the art. The sensors 96 may be arranged at any variety of positions on the rotating disc 94.
[0070] As discussed previously, it is important to note that any one of or multiple of the sensors may alternately or additionally be arranged within or on the housing of the sensing or manipulation tip 16 rather than being arranged on the rotating disc 94.
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[0072] The LiDAR sensor 48 is a scanner utilizing pulsed light energy emitted from a rapidly firing laser. The light travels to the ground, plant leaf, or other obstacles and is reflected off objects such as branches, leaves, etc. The reflected light energy then returns to the LiDAR sensor where it detected and processed by the computer-based control system 32 to determine distances from the sensor manipulation tip 16 to neighboring objects or obstacles. The LiDAR sensor or scanner can determine the distance between itself and an object by monitoring how long it takes a pulse of light to bounce back. The concept is similar to radar, except using infrared light rather than radio waves. While radar is designed to be used across greater distances, LiDAR generally works over shorter distances, due to the way light is absorbed by objects in its path. By sending, for example, hundreds of thousands of light pulses every second, the LiDAR sensor or scanner can advantageously determine distances and object sizes with relative accuracy over the relatively small distances in a plant growth area.
[0073] As an alternate to or in addition to a LiDAR distance sensor, Time-of-Flight multizone ranging sensor might be used.
[0074] The sensor manipulation tip 16 preferably includes one or more temperature sensors 66, particularly for sensing air temperatures and temperature variations within the geometric plant growth area 40, detecting a 2D or 3D profile of how temperature changes across the plant growth area 40, such that the control system 32 can adjust temperatures of air cooling or air heating units above or about the plant growth area 40. For example, standard industry type infrared arrays might be used as temperature sensor, allowing for a measurement of not just the environmental temperature but the temperature of a plant and even the temperature distribution on a plant.
[0075] The sensor manipulation tip 16 preferably includes one or more cameras taking images and may also serve as a distance sensor, for example by measuring changes in the focal length of the image, or the camera may be embodied to take stereo images from which distance can be calculated by triangulation methods. One or more cameras, as enabling non-limiting examples: Arducam™ 12 MP or Luxonis OAK-1-PCBA™ might be included in the sensor manipulation tip 16. The camera might be integrated, e.g. on a PCB, with chips performing AI modules directly on-board. The cameras might be equipped with autofocus systems for distance measurements.
[0076] The robotic base 14 and/or robotic sensor and manipulation tip 16 preferably includes one or more hyperspectral sensors 74. Hyperspectral sensors are devices which record images using a wide portion of the electromagnetic spectrum. These sensors capture an image in a number of slices or spectral bands, each representing a portion of the spectrum. These spectral bands may then be combined to form a three-dimensional composite image. The resultant images or hyperspectral cubes provide data for a definitive, deep layer analysis of the plant materials or minerals which make up the scanned area. Hyperspectral imaging is known to be a valuable diagnostic tool in agricultural crop monitoring applications and mineralogy fields. Hyperspectral sensors may be applied with the control system 32 to create images and predictive reports which may assist in the early detection of plant disease outbreaks and overall plant health. Hyperspectral sensors can also be applied with the control system 32 to measure and determine nutrient levels in standing crops and water levels in the surrounding soil.
[0077] The robotic base 14 and/or the robotic sensor and manipulation tip 16 may include one or more CO.sub.2 sensors, detecting carbon dioxide levels in the ambient air in the plant growth area 40. E.g. CO.sub.2 sensors, such as for example Sensirions SCD4x™ or combined sensors for CO.sub.2 and temperature and/or humidity like Sensirions SCD30™ might be used.
[0078] The robotic base 14 and/or the robotic sensor and manipulation tip 16 may include one or more airflow sensors 78, detecting air flow speed and/or direction in the plant growth area 40. E.g. Hot wire anemometers might be used, in particular in indoor environments, and a spinning cup anemometer might be used, in particular in outdoor environments.
[0079] The robotic base 14 and/or the robotic sensor and manipulation tip 16 may include one or more air quality sensors 80, for example: particulate sensors (PM 2.5, PM 5), TVOC (total volatile organic compound) sensors, humidity sensors, ozone sensors, and CO.sub.2 sensors (as above), as well as other air quality sensors as would be known to those skilled in the art. An example for such a sensor is the Bosch™ BME 680 which can measure humidity, barometric pressure, temperature, and additionally it contains a MOX sensor. The heated metal oxide changes resistance based on the volatile organic compounds (VOC) in the air, so it can be used to detect gasses and alcohols such as Ethanol, Alcohol and Carbon Monoxide, and perform air quality measurements.
[0080] The robotic base 14 and/or the robotic sensor and manipulation tip 16 may include light intensity and light spectrum sensors 82. Such sensors might be highly specialized (Extended) Photosynthetically Active Radiation Sensors or rather standard sensors e.g. like the Adafruit™ RGB color sensor TCS34725 or a multi-channel spectral color sensor. For some applications one or more sensors to capture the full spectrum combining visual light, near infrared and mid infrared may be advantageous.
[0081] The robotic base 14 and/or the robotic sensor and manipulation tip 16 may include pan tilt camera unit 84, preferably rotatable by 360 degrees freely or by 180 degrees in both directions.
[0082] The robotic base 14 preferably includes an air pressurization mechanism 86, for example, an air compressor device. The air pressurization mechanism 86 is responsive to commands from the control system 32 to pressurize, on command, an interior channel in the tip suspension cable 56 so as to stiffen the cable against flexing so as to positionally stabilize the robotic sensor and manipulation tip 16 against swinging or deflection relative to the robotic base 14. This can be especially important when spraying or pruning plants.
[0083] The pan/tilt camera unit 84 and other cameras of the robotic base 14 and/or the robotic sensor and manipulation tip 16 are operable by the control system 32 as another means to detect undesirable swinging or movement of the robotic sensor and manipulation tip 16 such as to initiate the air pressurization mechanism 86.
[0084] The robotic base 14 and/or the robotic sensor and manipulation tip 16 may preferably include at least one tip orientation detection means 88, detecting rotational orientation of the robotic sensor and manipulation tip 16 relative to the robotic base 14. The rotational orientation of the robotic sensor and manipulation tip 16 relative to the robotic base 14 may also be detected by the pan tilt camera 84 of the robotic base 14.
[0085] The robotic base 14 and/or the robotic sensor and manipulation tip 16 may preferably include at least one motion sensor 108, e.g. a combined accelerometer, an accurate close-loop triaxial gyroscope, a triaxial geomagnetic sensor as known e.g. from smart phones.
[0086] The robotic sensor and manipulation tip 16 preferably may include at least one fluorescence sensor 90 operative to study chlorophyll and to measure dissolved oxygen concentrations. The at least one fluorescence sensor 90 detects chlorophyll fluorescence (CF) data and communicates with the control system 32 to provide a vital understanding plant health and crop photosynthesis. In some embodiments, the at least one fluorescence sensor 90 collects image data at high resolution across the chlorophyll fluorescence emission spectrum, preferably from 670 to 780 nm, preferably to allow both the ‘Oxygen-A’ and ‘Oxygen-B’ bands to be measured for more accurate insight into plant photosynthetic processes. The at least one fluorescence sensor 90 is preferably rotatable at up to 360 degrees about the robotic sensor and manipulation tip 16.
[0087] The tip positioning mechanism 20 of the robotic base 14 may include a force detection sensor 30 in communication with the control system 32 and detecting forces applied on the tip positioning mechanism 20, tip suspension cable 56 or the robotic sensor and manipulation tip 16 for detecting encountered obstacles or entanglements of the robotic sensing and manipulation tip 16. In some embodiments, the force detection sensor 30 may be a motor current sensor, detecting variations or increases in motor current draw of the tip positioning mechanism 20 indicating entanglement.
[0088] Those skilled in the art will recognize that all sensors described herein are in communication with the computer-based control system 32, providing sensor data to the control system 32 for plant health analysis, 3D model generation of the plant growth area, generation a 3D topology of the plant growth area and to enable the autonomous, automated operation of the robotic base 14 and the robotic sensor and manipulation tip 16 as well as the reporting functions of the compute box/computer control system 32B and cloud provided services.
[0089]
[0090] Critical areas whose climate exceeds various predetermined standards such as temperature, humidity and light intensity or where the change rate exceeds predetermined standards are identified 207. For example, a predetermined standard in a plant growth area may be measured several times with predetermined time intervals, e.g one day, and thus zones of the plant growth area with a high volatility of the standard may be determined. Once identified, critical areas are further measured 209 by taking additional subsamples so that more information and more specific or “dense” geographic areas can be identified. The subsamples and compiled where the resulting data is used to produce and compute 211 a heat map of the local environment. The map can then be used by the aerial sensor and manipulation platform enabling it to return 213 to the areas having larger or faster variations, e.g. in temperature, humidity or light intensity, at a more frequent interval. After each visit, the heatmap can be updated with new data. Hence, the aerial sensor and manipulation platform can be scheduled to visit these microclimate locations for additional visits providing new or additional applications of water, fertilizers, and/or pesticides.
[0091]
[0092] In situations where the target location is not above the canopy 307, a new location above the target location is computed 309. The aerial senor and manipulation platform is moved to that new target location and sensors are used to detect 313 any impediments or obstacles. If the location is not accessible 315, then the sensor measurements are evaluated 317 to determine if there is any viable free space. If there are no alternatives, then the process starts again, where the path to the next location is computed 305. If an alternative is available, then the sensor is moved to that location 311 and the process continues.
[0093] When the location is determined as accessible 315, then the sensor platform can be moved and/or lowered into position 321. Thereafter, a camera, sensor or other imaging device is pointed in a requested direction and an image is captured 325. A determination can then be made if pests are present 327. If no pests are present, then the next location is computed and the process continues. However, if pests are present, then the presence of the pest, the quantity and type of pest of can be reported for applications of pesticides or other further action.
[0094] Thus aspects of the present invention are directed a robotic sensor and manipulation platform and methods of use that are configured to connect directly or indirectly to an aerial support and positioning system. The platform includes a robotic base connected to and moved to command positions by the aerial support and positioning system and at least one sensing and manipulation tip deployable from the robotic base that includes one or more sensors for imaging and detecting climatic data and parameters. A motor driven tip positioning mechanism is responsive to positioning commands from a control system. The tip positioning mechanism arranged on the robotic base and connecting the sensing and manipulation tip to the robotic base and is operable operable to move the sensing and manipulation tip to desired positions above or in the plant canopy.
[0095] In the foregoing specification, specific embodiments of the present invention have been described. However, one of ordinary skill in the art appreciates that various modifications and changes can be made without departing from the scope of the present invention as set forth in the claims below. Accordingly, the specification and figures are to be regarded in an illustrative rather than a restrictive sense, and all such modifications are intended to be included within the scope of the present invention. The benefits, advantages, solutions to problems, and any element(s) that may cause any benefit, advantage, or solution to occur or become more pronounced are not to be construed as a critical, required, or essential features or elements of any or all the claims. The invention is defined solely by the appended claims including any amendments made during the pendency of this application and all equivalents of those claims as issued.