System and method for battery management and antenna elevation in a pit mounted automatic meter reading unit

• US 10,171,890 B2
• Filed: 08/19/2016
• Issued: 01/01/2019
• Est. Priority Date: 08/19/2016
• Status: Active Grant

• Current Assignee: Eaton Intelligent Power Limited (Eaton Corporation PLC.)
• Original Assignee: Cooper Technologies Company (Eaton Corporation PLC.)
• Inventors: Howard, Paul Allen, Manning, Michael Douglas, Yuan, Jianming
• Primary Examiner(s): Tun, Nay
• Application Number:
  US15/241,675
• Publication Number:
  US 20180054661A1
• Time in Patent Office: 865 Days
• CPC Class Codes: H04Q 2209/60 for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter
• CPC Class Codes: H04Q 2209/88 Providing power supply at the sub-station
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
• CPC Class Codes: H05K 5/0247 Electrical details of casings, e.g. terminals, passages for cables or wiring
• CPC Class Codes: H05K 5/03 Covers

Abstract

An enclosure and mounting system that provide ideal RF signal transmission and battery management for AMR systems utilized with a utility meter in a utility meter pit environment are disclosed. The AMR device includes processing electronics that receive consumption data from a pit-mounted utility meter, an antenna to wirelessly transmit signals from the AMR device, and an enclosure that houses the processing electronics and the antenna to provide protection thereto. The enclosure is configured to support different battery sizes and provide battery wire/connector management. The enclosure also defines a dome-shaped antenna compartment therein to house the antenna, the antenna compartment protruding out from a remainder of the enclosure so as to provide for positioning of the antenna at a location extended out therefrom. A companion adaptor utilized with the AMR device is mountable to a cover of the utility meter pit and increases a height of the antenna relative thereto.

Claims

1. An automatic meter reading (AMR) system adapted to be mounted in a utility meter pit, the AMR system comprising:

an AMR device including;

a meter connection configured to provide consumption data from a utility meter in the utility meter pit;

processing electronics configured to receive the consumption data via the meter connection and convert the consumption data into a transmittable signal;

an antenna configured to wirelessly transmit the transmittable signal to a remote device; and

an enclosure that houses the processing electronics and the antenna therein to provide protection thereto from ambient conditions in the utility meter pit;

wherein the enclosure defines a dome-shaped antenna compartment therein configured to house the antenna, the antenna compartment protruding out from a remainder of the enclosure so as to provide for positioning of the antenna at a location extended out therefrom; and

a cover adaptor mateable with the AMR device and with a cover of the utility meter pit, the cover adaptor comprising;

a flanged end portion; and

a projection portion protruding outwardly from the flanged end portion, the projection portion comprising a hollow interior formed therein that is open on an end of the projection portion that is distal from the flanged end portion;

wherein the projection portion is sized and constructed to so as to be positionable through a hole formed in the cover of the utility meter pit and so as to receive and secure the dome-shaped antenna compartment of the AMR device enclosure in the hollow interior thereof;

wherein the positioning of the projection portion of the cover adaptor through the hole in the cover of the utility meter pit and the securing of the dome-shaped antenna compartment of the AMR device enclosure in the hollow interior of the projection portion mounts the antenna of the AMR device at a height approximately flush with a top surface of the cover of the utility meter pit; and

wherein the dome-shaped antenna compartment comprises protrusions formed on an outer surface thereof and the projection portion comprises grooves formed thereon, with the protrusions mating with the grooves via a twist-lock type mating, so as to provide for selective mating and separation of the AMR device from the cover adaptor.

2. The AMR system of claim 1 wherein the enclosure comprises:

an enclosure body generally defining an interior volume to house the processing electronics and the antenna therein; and

an enclosure cover mateable with the enclosure body and selectively removable therefrom to expose the interior volume of the enclosure body.

3. The AMR system of claim 2 wherein the enclosure body is constructed to generally define the antenna compartment, as well as a battery compartment and an electronics compartment therein, with the electronics compartment configured to house the processing electronics therein and the battery compartment configured to house a battery of the AMR device therein.

4. The AMR system of claim 3 wherein the AMR device further comprises a pair of battery cushioning pads positionable on opposing ends of the battery to secure the battery in place within the battery compartment, the pair of battery cushioning pads comprising one of:

a first pair of battery cushioning pads having a first thickness and useable with a first battery size; and

a second pair of battery cushioning pads having a second thickness and useable with a second battery size;

wherein the first thickness of the first pair of battery cushioning pads is greater than the second thickness of the second pair of battery cushioning pads; and

wherein an overall height of the first pair of battery cushioning pads and a battery having the first battery size is equal to an overall height of the second pair of battery cushioning pads and a battery having the second battery size.

5. The AMR system of claim 3 wherein the battery compartment includes wire storage channels formed therein to house wiring in the AMR device.

6. The AMR system of claim 5 wherein the AMR device further comprises a plurality of moisture resistant crimp connectors positioned within the wire storage channels of the battery compartment to enable power to be provided to the AMR device upon battery replacement.

7. The AMR system of claim 3 wherein the enclosure further comprises wire routing channels formed in a wall separating the battery compartment and the electronics compartment, the wire routing channels configured to capture wiring in the AMR device, so as to enable securing of the enclosure cover to the enclosure body.

8. The AMR system of claim 1 further comprising a ring-shaped extender constructed to be positionable about the projection portion of the cover adaptor, the ring-shaped extender being positioned between the cover adaptor and the cover of the utility meter pit so as to space the cover adaptor apart from the cover and cause the cover adaptor to protrude upwardly from the top surface of the cover.

9. The AMR system of claim 1 wherein the projection portion of the cover adaptor comprises a threaded outer surface;

and

wherein the cover adaptor further comprises an adaptor nut configured to engage the threaded outer surface of the projection portion, so as to secure the cover adaptor to the cover of the utility meter pit.

10. A method for mounting an automatic meter reading (AMR) device in a utility meter pit having an enclosure and a cover that collectively define a volume within which a utility meter and the AMR device may be positioned, the method comprising:

positioning a cover adaptor onto the cover of the utility meter pit, wherein positioning the cover adaptor comprises;

translating a projection portion of the cover adaptor through a hole formed in the cover of the utility meter pit, the projection portion comprising a generally hollow interior; and

mating a flanged end portion of the cover adaptor with the cover of the utility meter pit, the flanged end portion formed on one end of the projection portion; and

inserting a dome-shaped projection of an enclosure of the AMR device into the hollow interior of the projection portion of the cover adaptor to secure the AMR device to the cover adaptor;

wherein the dome-shaped projection of the AMR device enclosure mates with the hollow interior of the projection portion via a twist-lock type mating to mount an antenna of the AMR device at a height generally flush with a top surface of the cover of the utility meter pit; and

wherein the dome-shaped projection of the AMR device enclosure comprises protrusions formed on an outer surface thereof and the projection portion comprises grooves formed thereon, with the protrusions mating with the grooves via the twist-lock type mating, so as to provide for selective mating and separation of the AMR device from the cover adaptor.

11. The method of claim 10 further comprising:

positioning a ring-shaped extender about the projection portion of the cover adaptor and between the cover adaptor and the cover of the utility meter pit, so as to space the cover adaptor apart from the cover and cause the cover adaptor to protrude upwardly from the top surface of the cover; and

engaging an adaptor nut with a threaded outer surface of the projection portion of the cover adaptor, so as to secure the cover adaptor to the cover of the utility meter pit.

12. The method of claim 10 wherein inserting the dome-shaped projection of the enclosure of the AMR device into the hollow interior of the projection portion of the cover adaptor further comprises:

inserting the dome-shaped projection of the enclosure of the AMR device into the hollow interior of the projection portion of the cover adaptor and up into a raised dome formed on the flanged end portion of the cover adaptor; and

mating one or more protrusions formed on the dome-shaped projection of the enclosure of the AMR device with a groove formed in the hollow interior of the projection portion of the cover adaptor to secure the AMR device to the cover adaptor.