EQUIPMENT FOR LOGGING AND TRANSMITTING MEASURED VALUES OF PHYSICAL QUANTITIES, AND MEASUREMENT SENSOR FOR SUCH EQUIPMENT

• US 20110037615A1
• Filed: 03/27/2009
• Published: 02/17/2011
• Est. Priority Date: 04/02/2008
• Status: Active Grant

• Current Assignee: Suez International (Saudi Chemical Company)
• Original Assignee: Suez Groupe
• Inventors: Borlee, Jean-Paul
• Granted Patent: US 9,632,145 B2
• Time in Patent Office: Days
• US Class Current: 340/870.17
• CPC Class Codes: G01R 31/3647 for determining the ability of a battery to perform a critical function, e.g. cranking
• CPC Class Codes: G01R 31/374 with means for correcting the measurement for temperature or ageing

Abstract

Logging and transmission equipment comprising at least one autonomous measurement sensor, supplied by an electric cell, comprising an emitter able to transmit at various instants at least one value measured by the sensor, and a receiver for gathering the values transmitted by the emitter; the sensor comprises a means of measuring the temperature in the vicinity of the cell; a link is provided for supplying the emitter with the temperature values measured, which emitter is provided so as to transmit, in addition the values of at least one physical quantity, these temperature values measured, at determined intervals, and the receiver is provided so as to store the temperature values measured, estimates the lifetime of the cell by taking account of these measured values, and determine a date for replacing this cell.

Claims

1. An item of equipment for logging and transmitting measured values of physical magnitudes, comprising:

at least one standalone measurement sensor, powered by an electric cell, comprising a transmitter capable of transmitting at various times at least one value measured by the sensor,

and a receiver for collecting the values transmitted by the transmitter, wherein;

the sensor comprises a means for measuring the temperature in the vicinity of the cell,

a link is provided to supply to the transmitter the measured temperature values, which transmitter is designed to transmit, in addition to the values of at least one physical magnitude, these measured temperature values, at determined intervals,

and the receiver is designed to store the measured temperature values, estimate the life of the cell by taking account of these measured values, and determine a date of replacement of this cell.

2. The item of equipment as claimed in claim 1, wherein the receiver is designed to establish a temperature profile of the cell as a function of time, and comprises a means for comparing the temperature profile that has been logged with typical profiles in order to estimate the probable life of the cell.

3. The item of equipment as claimed in claim 1, wherein the receiver comprises an electronic circuit capable of initiating an alarm when the measured temperature values exceed a determined threshold.

4. The item of equipment as claimed in claim 3, with measurement sensor fitted to a water meter, wherein the receiver comprises a low temperature threshold for triggering the alarm below 0°

C., in order to warn of a risk of freezing.

5. The item of equipment as claim in claim 1, wherein the receiver comprises a high temperature threshold for triggering an alarm corresponding to the maximum temperature that the cell can withstand.

6. The item of equipment as claimed in claim 5, wherein the high temperature threshold for triggering an alarm is of the order of 60°

C.

7. The item of equipment as claimed in claim 1, wherein the preceding claims, characterized in that it is installed in a network for the delivery of fluid, in particular water, with sensors installed on the fluid meters, the transmitters of the sensors making it possible to ensure a remote logging of consumption.

8. A sensor for the standalone measurement of physical magnitudes, powered by an electric cell, for an item of equipment for logging and transmitting measured values as claimed in claim 1, comprising a transmitter capable of transmitting at different times at least one measured value, wherein it comprises a means for measuring the temperature in the vicinity of the cell, and a link provided to supply to the transmitter the measured temperature values, which transmitter is designed to transmit, in addition to the values of at least one physical magnitude, these measured temperature values, at determined intervals.