IP Library Granted Patent US 7,013,661
Granted Patent B2
US 7,013,661 · App. 10/271,245 · Granted Mar 21, 2006

Wireless method for monitoring and controlling food temperature

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Quick Facts
Patent No.
US 7,013,661
App. No.
10/271,245
Granted
Mar 21, 2006
Kind
B2
Abstract

A method for controlling refrigeration including a simulated product temperature sensor operable to measure a simulated product temperature from a refrigeration case and a transceiver in communication with said simulated product temperature sensor and operable to wirelessly transmit data. A receiver receives the wirelessly transmitted data and a controller in communication with the receiver controls the refrigeration system based upon the wirelessly transmitted data from the refrigeration case.

Claims (22)

1. A method for refrigeration system control, said method comprising:

measuring a simulated product temperature from at least one refrigeration case in a first refrigeration circuit;

wirelessly transmitting said simulated product temperature to a controller; and

electronically controlling an electronic stepper regulator for said first refrigeration circuit to effect said simulated product temperature.

2. The method as defined in claim 1 further comprising determining at least one of a defrost termination temperature, discharge temperature and a suction pressure.

3. The method as defined in claim 1 further comprising:

measuring a second parameter from another refrigeration case in a second refrigeration circuit;

wirelessly transmitting said measured second parameter to said controller; and

electronically controlling a second electronic stepper regulator to effect said second measured parameter.

4. The method as defined in claim 3 wherein said second parameters is selected from the following group: defrost termination temperature, simulated product temperature, air discharge temperature, or suction pressure.

5. The method as defined in claim 3 wherein said second parameter is suction pressure for a compressor rack.

6. The method as defined in claim 5 wherein said controller controls said compressor rack capacity based on said measured second parameters.

7. A method for refrigeration system control, said method comprising:

measuring a first parameter from at least one refrigeration case in a first refrigeration circuit;

wirelessly transmitting said measured first parameter to a controller;

electronically controlling an electronic stepper regulator for said first refrigeration circuit to effect said measured first parameter;

measuring a second parameter from another refrigeration case in a second refrigeration circuit;

wirelessly transmitting said measured second parameter to said controller; and

electronically controlling a second electronic stepper regulator to effect said second measured parameter;

wherein at least one of said first and second parameter is suction pressure for a compressor rack.

8. The method as defined in claim 7 wherein said controller controls said compressor rack capacity based on said measured first and second parameters.

9. The method as defined in claim 7 wherein the other of said first and second parameters is selected from the following group: defrost termination temperature, simulated product temperature, discharge temperature, and suction pressure.

Assignments (1)
MERGER Recorded Sep 15, 2014
From: COMPUTER PROCESS CONTROLS, INC.
To: EMERSON CLIMATE TECHNOLOGIES RETAIL SOLUTIONS, INC.
Reel/Frame 033744/0248 →