System and method for the remote monitoring of potted plants

• US 8,836,504 B2
• Filed: 02/24/2010
• Issued: 09/16/2014
• Est. Priority Date: 02/25/2009
• Status: Active Grant

• Current Assignee: ETH Zurich
• Original Assignee: ETH Zurich
• Inventors: Bolliger, Philipp, Ostermaier, Benedikt, Khler, Moritz
• Primary Examiner(s): MCNALLY, KERRI L
• Application Number:
  US13/203,167
• Publication Number:
  US 20120019382A1
• Time in Patent Office: 1,665 Days
• Field of Search: 340/540
• US Class Current: 340/540
• CPC Class Codes: A01G 7/00 Botany in general
• CPC Class Codes: G01N 33/24 Earth materials G01N33/42 takes precedence

Abstract

The invention relates to a system and method for determining the state, state changes, and/or condition changes of a potted plant and for indicating the determined state of said object to the owner or user thereof, wherein the system and method locally determine at least one physical and/or chemical parameter on top of on the side of or in the immediate vicinity of the plant (1) to be monitored by means of preferably several sensors or sensing elements (3). Said physical and/or chemical parameter is processed into a coded digital parameter signal and transmitted wirelessly, optionally by means of intermediate stages, to a central processor, which determines a statement about the state of the plant (1) from said coded digital parameter signal and other digital as an optical and/or acoustic indication of the current or prognosticated state of the plant/object (1). The sensation of the object is preferably simulated, which aims at triggering emotions in the user himself, for example, by means of language- and culture-independent icons. The data are determined, processed, and transmitted without significant time delay, in other words, in real time in principle. In the central processing, the data can be combined with further information, for example, the requirements profile of the object, historical data, data of similar objects, climate data, or weather forecasts. The user of the system can automatically be contacted if certain events are ascertained for the monitored object, if for example, an unfavorable forecast or a harmful parameter is ascertained. The sensors or sensing elements and further components are preferably placed in a plant container, an “intelligent flowerpot” so to speak, in such a way that the sensors or sensing elements are undetectable or barely detectable. Said “intelligent flowerpot” can comprise a “mobile sensor clip” as an essential component in addition to sensors arranged therein or thereon.

Claims

1. A system for determining a state or a state change of a potted plant and for indicating said state or state change to a user by wireless communication, comprising

a mobile, self-powered sensor clip or sensor unit mountable on or close to said plant, said sensor clip or sensor unit including

a power supply,

placed on or within a culture medium in a pot or other vessel at least two cross-linked sensors, each said sensor determining at least one physical and/or chemical parameter, each said parameter being represented as an electrical parameter signal,

placed on or within said pot or in one of said sensors an electronic device which transforms each said electrical parameter signal into a digitally encoded parameter signal,

a wireless transmitter for transmitting each said digitally encoded parameter signal in realtime to a receiver located outside said pot or other vessel,

at least one of said at least two cross-linked sensors determining the contents of nutritive and/or harmful substances within said culture medium.

2. The system according to claim 1, wherein

the sensor or sensors determining the contents of nutritive and/or harmful substances within the culture medium identifies the conductivity of the culture medium or of a groundwater in the pot or vessel, by measuring the resistance between two accordingly placed electrodes.

3. The system according to claim 1, further comprising

at least one of the at least two cross-linked sensors equipped for measuring at least one of the following physical or chemical parameters:

temperature and/or moisture of said culture medium,

temperature and/or humidity of the ambient atmosphere, and/or

duration and/or intensity and/or nature of light or other radiation to which the plant is exposed.

4. The system according to claim 1, wherein

the digitally coded parameter signals are transmitted wireless via an existing communication network.

5. The system according to claim 1, including

a plurality of the at least two cross-linked sensors for determining the moisture within the culture medium and/or the contents of nutritive and/or harmful substances therein, said sensors being placed in differing levels of the pot or vessel.

6. The system according to claim 1, including

a plurality of the at least two cross-linked sensors for determining the moisture within the culture medium and/or the contents of nutritive and/or harmful substances therein, said sensors extending from the bottom of the pot or vessel and having different lengths.

7. The system according to claim 1, wherein

at least one of the at least two cross-linked sensors is configured as a movable float gauge for determining the moisture within the culture medium by identifying a level of a liquid within said culture medium.

8. The system according to claim 1, further including

an RFID tag attached to the pot or vessel for identifying said pot or vessel by an RFID reader.

9. The system according to claim 1, wherein

the mobile sensor clip has a plant-like structure, in particular approximately the form of a leaf, a fruit, a blossom, or a flower, whereby a part of said structure is configured as or includes a solar cell for said clip'"'"'s power supply.

10. The system according to claim 1, wherein

a plurality of more than two of the at least two cross-linked sensors is provided, at least two of which are connected by wire whereas the remaining sensors are wireless cross-linked.

11. The system according to claim 1, wherein

at least one of the at least two cross-linked sensors generates digitally encoded parameter signals and/or includes a transmitter for transmitting said digitally encoded parameter signals.

12. The system according to claim 1, wherein

at least one of the at least two cross-linked sensors is placed at the upper end or rim of the pot or vessel for determining duration and/or intensity and/or nature of the light or other radiation to which the plant is exposed.

13. The system according to claim 12, wherein

at least one of the at least two cross-linked sensors comprises a plurality of locally distributed sensors.

14. The system according to claim 1, wherein

the digitally encoded parameter signals are transmitted wireless via an existing WLAN and/or the Internet.

15. The system according to claim 1, wherein

the at least two cross-linked sensors are placed at a wall of the pot or vessel.

16. A method for operating a monitoring system for determining a state or a change of state of a potted plant and for indicating said state or change of state to a user by wireless communication, comprising the steps of:

mounting a mobile, self-powered sensor clip or sensor unit on or close to said plant, said sensor clip or sensor unit including a power supply,

placing on or within a culture medium in a pot or other vessel at least two cross-linked sensors, each said sensor for determining at least one physical and/or chemical parameter, each said parameter being represented as an electrical parameter signal,

placing on or within said pot or in one of said sensors an electronic device for transforming each said electrical parameter signal into a digitally encoded parameter signal, and a wireless transmitter for transmitting each said digitally encoded parameter signal in realtime to a receiver located outside said pot or other vessel,

deriving, from said at least two cross-linked sensors, at least two physical and/or chemical parameters, one of them indicating the contents of nutritive and/or harmful substances within said culture medium in said pot or vessel containing said potted plant,

representing each said physical and/or chemical parameter as an electrical parameter signal,

transforming, by said electronic device, said representative electrical parameter signal into a digitally encoded parameter signal,

transmitting, by said wireless transmitter, said digitally encoded parameter signal in real-time to a receiver located outside said pot or vessel,

processing said digitally encoded parameter signals received in said receiver and deriving output signals representing the state or change of state of said plant,

transmitting said output signals wirelessly to an indicating or display device of the user of said plant, and

displaying or otherwise indicating to said user the state or change of state of said plant.

17. The method according to claim 16, wherein

a further parameter of the at least two physical and/or chemical parameters is one of the group of:

temperature and/or moisture of the culture medium, and/or

temperature and/or humidity of an ambient atmosphere, and/or

duration and/or intensity and/or nature of light or other radiation to which the plant is exposed.

18. The method according to claim 16, wherein

the physical and/or chemical parameters are determined in real-time and the digitally coded parameter signals derived therefrom are transmitted to the user without delay.

19. The method according to claim 16, wherein

the user is alarmed whenever any of the digitally coded parameter signals or any therefrom derived output signals concerning a plant of said user indicates a dangerous state of said plant.

20. The method according to claim 19, wherein

the user is alarmed in realtime.