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Device and method for remotely reading a meter

A technology for remotely reading equipment and meters, which is applied to billing equipment, instruments, measuring devices, etc., and can solve problems such as sensor function limitations and the inability of sensors to detect the existence of magnet A.

Active Publication Date: 2015-11-18
SAGEMCOM ENERGY & TELECOM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Therefore, the functions allowed by the sensor are limited
[0011] In particular, the presence of magnet A cannot be detected by the sensor, for example, with the unit wheel in a position where the magnet is diametrically opposite the sensor

Method used

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  • Device and method for remotely reading a meter
  • Device and method for remotely reading a meter
  • Device and method for remotely reading a meter

Examples

Experimental program
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Embodiment Construction

[0050] The overall structure of the telemetry device according to a possible embodiment can be referred to figure 1 The type of structure described.

[0051] However, the sensor that replaces the pulse sensor 2 is not a bistable sensor that sends switching pulses but a magnetometer that enables the measurement of the magnetic field.

[0052] Such sensors are, for example, 3D magnetometer sensors with sensitivities on the order of microtesla or less.

[0053] Such a sensor is for example a sensor commonly used to implement the compass function in some PDAs (eg part Asahi Kasei AK8975 used in smartphones). Such sensors have a structure based on silicon technology and generally have a sensitivity of 0.3 microtesla for magnetization excursions (excursions d'aimantations) of 1000 microtesla.

[0054] It will be appreciated that such a sensor 2 measures the magnetic field of the magnet A permanently.

[0055] During the rotation of the wheel supporting the magnet A, the measureme...

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PUM

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Abstract

The invention relates to a remote-reading device (1) intended to be hooked up to a meter (C) and comprising at least one magnetometer (2) and a set of bistable sensors (12a, 12b, 12c) for following the rotations of a magnet (A)integrated into a wheel of a mechanical totalizer (TM) of the meter, the magnetometer (2) and the bistable sensors (12a, 12b, 12c) being configured so as to ensure a sampled following of a rotation of the magnet (A).

Description

technical field [0001] The invention relates to a remote meter reading device and method. The invention is advantageously applied to the remote reading of measurements of flow meters (in particular gas flow meters), but other applications (water meters, heat meters, etc.) are also possible. Background technique [0002] Flow meters, especially at the customer end, are usually in the form of a housing comprising a transparent window for reading a digital totalizer with a graduated wheel. [0003] It has been proposed to equip such meters with remote reading systems for remote transmission of consumption records. [0004] Such as figure 1 As shown, such a remote reading system takes the form of a housing 1 attached to a meter C to be read remotely. [0005] This housing 1 integrates a pulse sensor 2 for detecting the rotation of a small magnet A fixed to the "unit" wheel of the meter C's mechanical totalizer TM. [0006] Inside the housing 1 there is an electronic device 3...

Claims

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Application Information

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IPC IPC(8): G01D4/00
CPCG01D4/008Y02B90/247Y04S20/50Y02B90/20Y04S20/30
Inventor 皮埃尔·萨巴蒂耶尔亚历克斯·库恩亨利·秦伯利
Owner SAGEMCOM ENERGY & TELECOM
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