Environmental monitoring system

• US 20030016128A1
• Filed: 06/20/2002
• Published: 01/23/2003
• Est. Priority Date: 06/22/2001
• Status: Active Grant

• Current Assignee: Pentagon Technologies Group, Inc. (Kurita Water Industries (Suzhou) Ltd.)
• Original Assignee: Pentagon Technologies Group, Inc. (Kurita Water Industries (Suzhou) Ltd.)
• Inventors: Duggan, Daniel, Lutz, Donald G.
• Granted Patent: US 6,888,453 B2
• Time in Patent Office: Days
• US Class Current: 340/517
• CPC Class Codes: G08C 19/00 Electric signal transmission systems G08C17/00 takes precedence

Abstract

An environmental monitoring system is disclosed including a plurality of sensors, a plurality of sensor modules each electrically connected to one of the plurality of sensors for generating a ID signal that uniquely identifies the one sensor electrically connected thereto, a plurality of first electrical connectors each electrically connected to one of the sensor modules and a central monitoring unit that includes a plurality of second electrical connectors for connection with the first electrical connectors, a CPU for receiving the ID signals via the first and second electrical connectors for identifying each of the sensors in response to the received ID signals and for configuring operating parameters for each of the identified sensors, and a storage medium for storing sensor data corresponding to the sensor signals. Other elements of the monitoring system can include a power supply, at least one input/output module and calibration ports.

Claims

1. An environmental monitoring system, comprising:

a plurality of sensors for generating sensor signals responsive to sensed environmental conditions;

a plurality of sensor modules each electrically connected to one of the plurality of sensors and including an electrical circuit for generating a ID signal that uniquely identifies the one sensor electrically connected thereto;

a plurality of cables each having a first end electrically connected to one of the sensor modules and a second end terminating in a first electrical connector; and

a central monitoring unit that includes;

a plurality of second electrical connectors for connection with the first electrical connectors,

a entral processing unit (CPU) for receiving the ID signals via the plurality of cables, for identifying each of the sensors in response to the received ID signals, and for configuring operating parameters for each of the identified sensors, and

a storage medium for storing sensor data corresponding to the sensor signals.

2. The environmental monitoring system of claim 1, wherein the central monitoring unit further comprises:

a power supply for supplying operating power to the sensors via the plurality of cables.

3. The environmental monitoring system of claim 1, further comprising:

at least one input/output module connected between the second electrical connectors and the CPU for communicating the sensor signals and ID signals received from the cables to the CPU.

4. The environmental monitoring system of claim 1, wherein at least some of the sensor signals are analog and others of the sensor signals are digital.

5. The environmental monitoring system of claim 4, further comprising:

a plurality of input/output modules connected between the second electrical connectors and the CPU, wherein at least one of the input/output modules communicates the analog sensor signals received from at least one of the cables to the CPU, and another of the input/output modules communicates the digital sensor signals received from at least one of the cables to the CPU.

6. The environmental monitoring system of claim 1, wherein each of the sensor modules further comprises:

calibration ports for transmitting calibration signals to and from the sensor connected thereto.

7. The environmental monitoring system of claim 1, wherein each of the sensors is enclosed in a housing, and each of the sensor modules is disposed in one of the housings.

8. The environmental monitoring system of claim 1, wherein the CPU triggers an alarm in response to one of the operating parameters being outside of a predetermined range.

9. The environmental monitoring system of claim 1, wherein the central monitoring unit further includes a visual display for displaying the sensor data and input keys for inputting information to the CPU.

10. An environmental monitoring system, comprising:

a plurality of sensors for generating sensor signals responsive to sensed environmental conditions;

a plurality of sensor modules each electrically connected to one of the plurality of sensors and including an electrical circuit for generating a ID signal that uniquely identifies the one sensor electrically connected thereto;

a plurality of first electrical connectors each electrically connected to one of the sensor modules; and

a central monitoring unit that includes;

a plurality of second electrical connectors for connection with the first electrical connectors,

a central processing unit (CPU) for receiving the ID signals via the plurality of first and second electrical connectors, for identifying each of the sensors in response to the received ID signals, and for configuring operating parameters for each of the identified sensors, and

a storage medium for storing sensor data corresponding to the sensor signals.

11. The environmental monitoring system of claim 10, wherein the central monitoring unit further comprises:

a power supply for supplying operating power to the sensors via the plurality of first and second electrical connectors.

12. The environmental monitoring system of claim 10, further comprising:

at least one input/output module connected between the second electrical connectors and the CPU for communicating the sensor signals and ID signals received from the sensors and sensor modules to the CPU.

13. The environmental monitoring system of claim 10, wherein at least some of the sensor signals are analog and others of the sensor signals are digital.

14. The environmental monitoring system of claim 13, further comprising:

a plurality of input/output modules connected between the second electrical connectors and the CPU, wherein at least one of the input/output modules communicates the analog sensor signals received from at least one of the cables to the CPU, and another of the input/output modules communicates the digital sensor signals received from at least one of the cables to the CPU.

15. The environmental monitoring system of claim 10, wherein each of the sensor modules further comprises:

calibration ports for transmitting calibration signals to and from the sensor connected thereto.

16. The environmental monitoring system of claim 10, wherein each of the sensors is enclosed in a housing, and each of the sensor modules is disposed in one of the housings.

17. The environmental monitoring system of claim 10, wherein each of the first electrical connectors is enclosed in a housing, and each of the sensor modules is disposed in one of the housings.

18. The environmental monitoring system of claim 10, wherein the CPU triggers an alarm in response to one of the operating parameters being outside of a predetermined range.

19. The environmental monitoring system of claim 10, wherein the central monitoring unit further includes a visual display for displaying the sensor data and input keys for inputting information to the CPU.