Food information monitoring system

• US 7,019,638 B1
• Filed: 04/25/2003
• Issued: 03/28/2006
• Est. Priority Date: 05/10/2002
• Status: Expired due to Fees

• Current Assignee: Unified Brands, Inc. (Electrolux Professional AB)
• Original Assignee: A La Cart, Inc.
• Inventors: Wallace, Thomas E.
• Primary Examiner(s): MULLEN, THOMAS J
• Application Number:
  US10/423,092
• Time in Patent Office: 1,068 Days
• Field of Search: 340/585, 340/505, 340/531, 340/596, 340/539.1, 340/539.13, 340/539.26, 340/870.17, 374/100, 621/29, 993/44
• US Class Current: 340/531
• CPC Class Codes: G01K 1/024 for remote indication
• CPC Class Codes: G01K 1/026 arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
• CPC Class Codes: G01K 2207/02 for measuring food temperature
• CPC Class Codes: G05D 23/1934 each space being provided with one sensor acting on one or more control means
• CPC Class Codes: G05D 23/20 with sensing elements having variation of electric or magnetic properties with change of temperature G05D23/13 takes precedence

Abstract

Two-stage systems and methods are provided for gathering food information and communicating the food information to a data collection apparatus. A system includes a remote unit, having a sensor device and a wireless transmitter; a translator or intermediate unit, having a wireless receiver and transmitter; and a central unit. Data is gathered by the remote unit, wirelessly transmitted to the translator unit, and relayed to the central unit. Communication between the translator unit and the central unit may be wireless as well, or the translator unit may be equipped to transmit either wirelessly or via a direct physical connection.

Claims

1. A system for gathering food information and communicating the food information to a data collection apparatus via at least one of a plurality of communications technologies, the system comprising:

(a) a plurality of remote units, each remote unit including;

a sensor device that detects data indicative of a particular food condition; and

an output that propagates signals indicative of the detected data; and

(b) a translator unit for relaying data indicative of particular food conditions to a data collection apparatus, the translator unit including;

at least one remote unit interface that receives signals propagated by the outputs of the remote units;

a wireless transmitter, connected to the at least one remote unit interface, for wirelessly transmitting signals indicative of the detected data received from the plurality of remote units; and

an output adapter, connected to the remote unit interface, for electrically communicating, over an external electrical conductor physically connected to the output adapter, signals indicative of the detected data received from the plurality of remote units.

2. The system of claim 1, wherein each sensor device includes a temperature sensor, wherein the data detected by each sensor device includes a numerical measurement, and wherein the signals propagated by the output of each remote unit include the numerical measurement.

3. The system of claim 2, wherein at least some of the numerical measurements are numerical temperature measurements.

4. The system of claim 2, wherein each remote unit further includes a unique identifier, and wherein the translator unit includes means for relaying the unique identifier of the remote unit via the wireless transmitter and the output adapter.

5. The system of claim 2, wherein one or more of the at least one remote unit interface includes a wireless receiver circuit that receives signals transmitted wirelessly from the output of at least one of the remote units.

6. The system of claim 2, wherein one or more remote unit interface is wired directly to the output of one of the remote units, thereby enabling the one or more remote unit interface to receive signals propagated by the output of one of the remote units.

7. The system of claim 2, wherein each food condition is the temperature of a food located adjacent to a remote unit.

8. A system for collecting, in a central location, food information from a remote location, the system comprising:

(a) a remote unit including;

a sensor device that detects data indicative of a particular food condition; and

an output that propagates signals indicative of the detected data;

(b) a communications network;

(c) a translator unit that relays data indicative of particular food conditions to the communications network, the translator unit including;

at least one remote unit interface that receives signals propagated by the output of the remote unit;

a wireless network connection subsystem, having an input connected to the remote unit interface, for wirelessly transmitting signals, indicative of the detected data received from the remote unit, to the communications network via a wireless network access point; and

a wired network connection subsystem, having an input connected to the at least one remote unit interface, for electrically communicating signals, indicative of the detected data received from the remote unit, to the communications network if the communications network is wired directly to an output of the wired network connection subsystem; and

(d) a central computer that collects data indicative of a particular food condition from the remote unit via the translator unit.

9. The system of claim 8, wherein the sensor device includes a temperature sensor, wherein the data detected by the sensor device includes a numerical measurement, and wherein the signals propagated by the output of the remote unit include the numerical measurement.

10. The system of claim 9, wherein the numerical measurement is a numerical temperature measurement.

11. The system of claim 9, wherein the remote unit further includes a unique identifier, and wherein the translator unit includes means for relaying the unique identifier of the remote unit via the wireless and wired network connection subsystems.

12. The system of claim 9, wherein one or more of the at least one remote unit interface includes a wireless receiver circuit that receives signals transmitted wirelessly from the output of the remote unit.

13. The system of claim 9, wherein one or more of the at least one remote unit interface is wired directly to the output of the remote unit, thereby enabling the remote unit interface to receive signals propagated by the output of the remote unit.

14. The system of claim 9, wherein the particular food condition is the temperature of a food located adjacent to the remote unit.

15. A two-stage wireless system for gathering food information and communicating the food information to a data collection apparatus, the system comprising:

(a) a remote unit including;

a sensor device that detects data indicative of a particular food condition, and

a first wireless transmitter, coupled to the sensor device, that wirelessly transmits first signals indicative of the detected data;

(b) a translator unit including;

a first wireless receiver that wirelessly receives the first signals from the remote unit, and

a second wireless transmitter, having an input connected to the first wireless receiver, that wirelessly transmits second signals indicative of the detected data received from the remote unit; and

(c) a central unit including a second wireless receiver that wirelessly receives the second signals from the translator unit.

16. The system of claim 15, wherein communication between the first wireless transmitter and the first wireless receiver is facilitated by a first communications protocol, and wherein communication between the second wireless transmitter and the second wireless receiver is facilitated by a second communications protocol.

17. The system of claim 16, wherein the second communications protocol is unique from the first communications protocol.

18. The system of claim 16, wherein the second communications protocol is compliant with an industry standard selected from the group consisting of the IEEE 802.11b standard, the Bluetooth standard, or the HomeRF standard.

19. The system of claim 18, wherein the first communications protocol is a non-industry standard protocol.

20. The system of claim 15, wherein the central unit includes a wireless access point, and wherein the second wireless receiver is part of the wireless access point.

21. The system of claim 15, wherein the remote unit further includes a third wireless receiver and the translator unit further includes a third wireless transmitter that communicates with the third wireless receiver.

22. The system, of claim 21, wherein the first wireless transmitter and the third wireless receiver together form a first wireless transceiver, and wherein the third wireless transmitter and the first wireless receiver together form a second wireless transceiver.

23. The system of claim 21, wherein at least one of the wireless transmitters is a FCC-approved 900 MHz spread spectrum wireless transceiver capable of line of sight transmission of at least 300 feet.

24. The system of claim 15, wherein the sensor device includes a temperature sensing device.