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WO2017156606A1 - Optical data for receiving and transmitting data and method for calibrating an optical device for receiving and transmitting data - Google Patents

Optical data for receiving and transmitting data and method for calibrating an optical device for receiving and transmitting data

Info

Publication number
WO2017156606A1
WO2017156606A1 PCT/BR2017/050049 BR2017050049W WO2017156606A1 WO 2017156606 A1 WO2017156606 A1 WO 2017156606A1 BR 2017050049 W BR2017050049 W BR 2017050049W WO 2017156606 A1 WO2017156606 A1 WO 2017156606A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
optical
block
device
calibration
otrd
Prior art date
Application number
PCT/BR2017/050049
Other languages
French (fr)
Portuguese (pt)
Inventor
Welson Regis Jacometti
Original Assignee
Cas Tecnologia S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00Arrangements for measuring time integral of electric power or current, e.g. by electricity meters
    • G01R22/06Arrangements for measuring time integral of electric power or current, e.g. by electricity meters by electronic methods
    • G01R22/10Arrangements for measuring time integral of electric power or current, e.g. by electricity meters by electronic methods using digital techniques
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00Testing or calibrating of apparatus covered by the preceding groups
    • G01R35/04Testing or calibrating of apparatus covered by the preceding groups of instruments for measuring time integral of power or current
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50Transmitters
    • H04B10/564Power control

Abstract

This application to a patent of invention describes an optical device (1) for receiving and transmitting data, designed for use as an optical communication solution for electronic meters of electrical energy with a standard ABNT optical port, capable of automatically configuring the specific technical features of the optical interface, photoemitter/photoreceiver, so as to compensate for the technical features that differ from manufacturer to manufacturer or from model to model of commercially available electronic meters for electrical energy with a standard ABNT optical port. The device (1) comprises a signal conditioning unit (2) connected to a power supply unit (3); the signal conditioning unit (2) is connected to and keeps two-way communications with the optical data unit (4) and with the unit (5) which corresponds to the EIA-232 data unit.

Description

"OPTICAL DEVICE FOR RECEIVING AND DATA TRANSMISSION AND PROCESS CALIBRATION OF A DEVICE FOR OPTICAL RECEPTION AND DATA TRANSMISSION"

APPLICATION FIELD

This patent of invention proposes an optical device

(OTRD) for receiving and transmitting data, particularly for use as a means of communication (reception and data transmission) with electronic energy meters in order to set parameters and / or collecting relevant data to it.

PREAMBLE

This application for patent describes an optical device for receiving and transmitting data, which is intended to be used as an optical communication solution for electronic meters for electricity with standard optical port ABNT, being able to perform automatic setting of the characteristics specific techniques of optical interface, light emitter / PR, in order to compensate the different technical features of each manufacturer / model of electronic meters of electric power with standard optical port ABNT available. This patent application also covers a calibration process designed to be used in the optical device proposed herein.

STATE OF THE ART

Currently exist in the Brazilian market different electronic meter manufacturers of electricity with standard optical port ABNT.

Each manufacturer has one or several different models of electricity meters in its portfolio, and some electronic meters models of electricity with standard optical port ABNT may have distinct local communication interfaces: display, standard serial port EIA-232 port serial EIA-485 standard, optical interface and / or user exits in different patterns.

In the case of the models of electronic meters of electrical energy that have standard optical interface ABNT described by NBR 14 519/201 1 (electronic meters Electricity - specification), this interface consists of a photoemitter and a photoreceptor infrared light disposed standardized mechanical, which is a reproduction of this standard text on your topic "7.4.2 optical Port".

The aforementioned NBR 14519/201 1 standardizes the mechanical and wavelength / power of the light emitter, but makes no reference to PR.

In the certification process of an electronic meter with the

INMETRO, it must be subjected to tests according to NBR

14,520 / 1 201 (Electric Power Meter Electronics - Test Method) and resolution RTM 587/2012 (INMETRO No. 587).

When tested in accordance with the standards described above, there is no test to validate photoemitter applied to its power and / or Pr to validate their sensitivity.

BACKGROUND OF THE PROBLEMS

Front of the above, is the existence in the market from different manufacturers / models electronic meters of electric power with standard optical port ABNT that have different technical characteristics in the optical port.

Thus currently there is the possibility of a standard optical device to communicate with various manufacturers / models of electricity meters with optical port marketed.

To meet different technical characteristics in optical port of electronic meters of power often occurs the need to change the optical communication device by repolarization of its electronic circuit transmission / reception.

Such changes generate different versions of optical communication devices suitable for each manufacturer / electronic meter model of electricity with standard optical port ABNT.

Thus, different manufacturers / models of electricity meters require different versions of optical communication devices, creating difficulties in installation / maintenance and logistics of electrical power utilities which need to perform data reading of electricity meters with optical port field.

Using as reference the RTM 587/2012 standards, NBR 1 14519/201 and 14520/201 NBR 1, we can conclude that Brazilian standards are not properly prepared for a standardization of optical communication in measuring equipment, in analyzing these standards it can be concluded: - RTM 587/2012: analysis in the Inmetro n Q 587, of November 5, 2012, the ordinance deals with the constructive aspects and access security as items transcribed below:

"2.6.6 Optical port: optical communication interface, equipped with a photo-receiver element and a light emitting element, which has the function of exchanging information between the meter and other equipment, keeping them electrically decoupled.

5.13.4 Security: protection via password access with security code must be made available to prevent unauthorized access to programmable meters, preventing unauthorized changes to metrological parameters and the recorded information file when there is no sealing device the optical port. "

- NBR 14519/201 1: according to standard NBR 14519/201 1 there is a standardization for the optical port. This standardization can be found under "7.4.2 Optical Port" in this passage are clear optical and electrical characteristics such as optical coupling, luminous characteristics, maximum permissible deviation between optical axes, and type of transmission. The optical quantities are specified and well defined with values ​​measured units, but in no portions of this standard are specified methods or tests to validate these parameters, thus any failure of the constructive aspect optical port go unnoticed by regulatory agencies.

- 14520/201 1 NBR: in accordance with item '5:14 interference light optical test port ", the ABNT NBR 14519/201 1 are defined all tests to be performed on the optical port, namely the item "5.14.1 with the meter not being in communication", which checks only if the meter does not show any abnormality when subjected to intense lighting, as in "5.14.2 with meter in communication with the reader programmer", this is only test which is subjected to optical communication with the meter actually, but the reader used is not specified and can be paired with the meter, which validates the operation during testing, no more certify that the optical port is within the characteristics specified by the standard.

After reviewing the current rules it is possible to conclude on the existence of electronic energy meters with different amounts into your optical interface.

The lack of adequate technical specifications in the standards contributes to the lack of testing to ensure the existence of compatible optical ports.

OBJECTIVES OF THE INVENTION

In view of the drawbacks observed in the prior art was developed subject matter in this patent of invention, which proposes a solution for automatic optical interface calibration OTRD device, which is intended to interface equipment with a communication standard EIA-232 with an optical data communication equipment infrared type, for example electronic energy meters. Therefore, this patent application deals with both OTRD device, as well as the process of its calibration.

BRIEF DESCRIPTION OF THE INVENTION

The application of objective patent suit all manufacturers / electronic meters models of existing energy market. The solution provides automated methods to adapt the device OTRD the characteristics of electronic meters for energy to be used.

The solution has an algorithm capable of adjusting the intensity of infrared light radiated by the light emitter of the device proposed OTRD, adapting automatically to all kinds of electronic energy meters, making up for their reception sensitivity variations. In this way you can prevent the electronic energy meter suffer saturation at your reception or that it is not touched by the radiated infrared light.

The same algorithm as described above, enables the adjustment of the receiving sensitivity of the device OTRD. In this way, the device is able to compensate for differences in power transmission of electronic energy meters, providing data interpretation capacity transmitted by any electronic energy meter. For the solution to operate properly, it is necessary to use tool "Calibrator OTRD" which should be used to make readings and routines automatic adjustment of power parameters and sensitivity OTRD device. The calibrator OTRD performs calibration and writes the parameters in OTRD device for it to keep the parameters of the last valid calibration performed automatically.

The solution also includes software developed for tablets and smartphones that manage automatic calibration OTRD device in conjunction with the use Calibrator OTRD, being able to validate the performed calibration and store the calibration data in the appropriate database. The information stored will be used in order to create historical and actual model calibration data between manufacturers / models of electronic meters of existing energy and the behavior of these data / variations over time.

DESCRIPTION OF THE FIGURES

The object of this application for patent will be described in detail below with reference to the related drawings, in which:

Figure 1 illustrates a basic block diagram of a OTRD device.

Figure 2 is a flowchart illustrating a calibration process.

Figure 3 illustrates a playback screen of the equipment used in the calibration of the device OTRD.

Figure 4 illustrates another playback equipment used in the calibration screen OTRD device.

Figures 5, "A" and five "B" illustrate two screens equipment for calibration of OTRD device, where it is shown the behavior of electronic energy meters of different manufacturers.

Figures 6 "A", 6 "B", 6 "C" and 6 "D" four screens illustrating the equipment used for calibration OTRD device, wherein the second step of the calibration process is shown.

DETAILED DESCRIPTION OF THE INVENTION

OTRD The device proposed herein is compound 1, as is depicted in Figure 1, a signal conditioning unit 2 connected to a block that corresponds to the power supply 3. The signal conditioning unit 2 maintains communication in two-way street, on the one hand, with the optical data block 4 and, on the other hand, the block 5 corresponding to the data block EIA-232.

This patent provides that the invention OTRD device 1 is subjected to a calibration process flow chart which can be appreciated in Figure 2 where the following units are present: "start program" - block 6; "Reset the value transmit power and increase sensitivity at the maximum value" - Block 7; "Gradually increasing transmission power until receiving" ENQ "- block 8;" made read "- block 9 (if not, returns to block 8, and if yes, one passes to block 10);" continues to increase the transmission power " - block 10, "read, and did not reach the maximum" - block 1 1 (if so, returns to block 10 and if not, goes to the block 12), "save the maximum and minimum power" - block 12; "adjust sensitivity to the minimum value and increase each cycle" - block 13; "verify receipt of the" ENQ "- block 14 (if not, returns to block 13 and if so, passes to block 15); "Perform read command" - Block 15; "Performed reading?" - block 16 (if not, returns to block 13 and if so, passes to block 17); "Calibration completed" - Block 17.

The present invention provides submitting an inventive device 1 OTRD a calibration process which occurs by use of a caliper device, where their operating parameters can be monitored.

Figure 3 illustrates playback of a screen equipment used in the calibration OTRD device 1, the initial step of the calibration process, which is the ID of the amplitude of the electrical signal measured at the drum output signal proportional to the light emitted by the photoemitter electronic power meter, which corresponds to the green data line measured at the drum output in analog mode; The yellow line corresponds to the sensitivity level for comparison with the analog data received (green line).

Now Figure 4 shows a playback screen of the equipment used in the calibration of the device OTRD, wherein the sensitivity (yellow line) reaches the minimum sensitivity level to enable proper communication of the device OTRD receiving circuit.

Figures 5, "A" and five "B" illustrate two screens equipment for calibration of OTRD device, where it is shown the behavior of electronic energy meters of different manufacturers, and the fifth figure, "A" shows a power meter with high transmission power in its light emitter, while in figure 5 "B" is shown a power meter with low transmission power in its light emitter.

Figures 6 "A", 6 "B", 6 "C" and 6 "D" illustrates four screens of the equipment used in the calibration OTRD device, where it is shown the second step of the calibration process corresponding to identify the required power to be transmitted by the photoemitter OTRD device, in order to obtain communication with the power meter - blue line: comparative resulting digital data between the green and yellow lines; - Pink line: power level transmitted by the light emitter of OTRD device (the higher the transmission power, the greater the infrared light intensity emitted).

The OTRD device comprises an infrared LED (light emitter): LED infrared light with a wavelength of 860-1020nm, not visible to the human eye, but detected by infrared receiver devices or various electronic devices. This objective convert to LED infrared light data received by electrical voltage levels from the EIA-232 standard; Infrared one photo transistor (PR): device sensitive to infrared light at a wavelength of 860-1020nm. Upon detecting the infrared photo-transistor allows the movement of electrical current at its terminals will be converted to appropriate voltage levels meeting the technical requirements of the standard EIA-232; Female DB9: used for serial communication in the EIA-232 standard. Magnetic Optical Connector: mechanical housing with the function of accommodating the infrared LED (light emitter) and infrared photo transistor (PR) in accordance with the NBR 14 519/201 1; connecting cable: providing the electrical connection between the connector and the optical magnetic DB9 connector used in the solution; electronic circuit: through appropriate components, performs the conversion of analog signals into digital signals.

Regarding the calibration process that requires the use of Calibrator OTRD connected to OTRD device. The OTRD device must necessarily be connected to an electronic energy meter. The connection from the device to the calibrator OTRD OTRD automatic calibration process may occur in the following ways:

Calibration by application: through the specific application installed on a smartphone and / or tablet connected to the Calibrator OTRD via BLUETOOTH technology, the calibration process is started and completed automatically.

Calibration equipment for the applicant now: Calibrator OTRD is physically connected to products capable of performing such automatic calibration routines and OTRD device. The calibration function is activated and the calibration process is started and completed automatically.

Photoreceptor Sensitivity of the calibration device OTRD: the first step of the process is the identification of the amplitude of the electric signal measured at the drum output signal proportional to the light emitted by the photoemitter electronic energy meter:

Green line: data measured at the drum output in analog mode;

Yellow Line: set the sensitivity level for comparison with the analog data received (green line);

Blue line: digital data resulting from the comparative entres the green and yellow lines.

The steps of the calibration process are depicted in Figures 3, 4, 5, "A" and five "B" 6 "A", 6 "B", 6 "C" and 6 "D".

Claims

1 . "OPTICAL DEVICE FOR DATA TRANSMISSION AND RECEPTION", the device (1) characterized in that it comprises signal conditioning unit (2) connected to a power supply block (3); signal conditioning unit (2) being connected and maintaining communication via two-way on the one hand, with the optical data block (4) and, on the other hand, with the block (5) which corresponds to block EIA-232 data.
2. "calibration process of an optical device for receiving and DATA TRANSMISSION", with this process used to produce the optical calibration device (1) is treated in claim 1, being characterized by subjecting provide the optical device (1) calibration process one in a calibration equipment, where: a) there is the "start program" - block (6); b) is "zerardo transmission power value and the sensitivity increased to the maximum value" - block (7); c) is "increased transmission power gradually until it is received" ENQ "- block (8), d) it is checked whether" made read "- block (9), and if not, returns to block (8) and if so, passes to the block (10); e) "continues to increase the transmission power" - block (10); f) "read and did not reach the maximum" - block (1 1), and if so returns to the block (10) and if not, goes to the block (12), g) "to save the maximum and minimum power" - block (12) h) "adjust sensitivity to the minimum value and increase each cycle "- block (13) i)" verify receipt of the "ENQ" - block (14), and if not, returns to block (13) and if so, passes to the block (15); j) "execute read command" - (15); k) "performed reading?" - block (16), and if not, returns to block (13) and if so, passes to the block (17); I) "calibration complete" - block (17).
PCT/BR2017/050049 2016-03-17 2017-03-10 Optical data for receiving and transmitting data and method for calibrating an optical device for receiving and transmitting data WO2017156606A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR102016005943 2016-03-17
BRBR1020160059437 2016-03-17

Publications (1)

Publication Number Publication Date
WO2017156606A1 true true WO2017156606A1 (en) 2017-09-21

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Country Status (1)

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WO (1) WO2017156606A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6104512A (en) * 1998-01-23 2000-08-15 Motorola, Inc. Method for adjusting the power level of an infrared signal
US6762598B1 (en) * 1992-02-21 2004-07-13 Elster Electricity, Llc Method for providing optical test signals for electronic meter testing
US20050117912A1 (en) * 2000-10-24 2005-06-02 Synapse, Inc. Data communications system and method for communication between infrared devices
US20060091877A1 (en) * 2004-10-19 2006-05-04 Robinson Andrew J Method and apparatus for an electric meter
US7042368B2 (en) * 1999-10-16 2006-05-09 Datamatic, Ltd Automated meter reader device having optical sensor with automatic gain control

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6762598B1 (en) * 1992-02-21 2004-07-13 Elster Electricity, Llc Method for providing optical test signals for electronic meter testing
US6104512A (en) * 1998-01-23 2000-08-15 Motorola, Inc. Method for adjusting the power level of an infrared signal
US7042368B2 (en) * 1999-10-16 2006-05-09 Datamatic, Ltd Automated meter reader device having optical sensor with automatic gain control
US20050117912A1 (en) * 2000-10-24 2005-06-02 Synapse, Inc. Data communications system and method for communication between infrared devices
US20060091877A1 (en) * 2004-10-19 2006-05-04 Robinson Andrew J Method and apparatus for an electric meter

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