EP1818886A1

EP1818886A1 - Electronic apparatus for remote signalling of anomalies in an electrical device

Info

Publication number: EP1818886A1
Application number: EP07101560A
Authority: EP
Inventors: Lidiana Padoan
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-02-03
Filing date: 2007-02-01
Publication date: 2007-08-15
Also published as: ITMI20060194A1

Abstract

Electronic apparatus (2) for signalling anomalies in an electrical user device (U) able to be fed with power by an electric power source (S), electrically connected between said source and said user device. The apparatus comprises a current sensor (22) suitable for detecting the current emitted by such a source and a transmission interface (25) suitable for communicating the presence of an anomaly of the user device to a user remotely and in real time through a predetermined communication protocol.

Description

The present invention refers to an electronic apparatus for signalling anomalies in an electrical device. In particular, the present invention concerns an electronic apparatus for signalling anomalies in electrical user devices connected to alternating voltage supply.
Devices for signalling anomalies in the operation or state of electrical apparatuses are known, like for example warning lights or sound alarms associated with refrigerators, ovens, boilers, etc...
Theft-prevention devices are also known that are able to communicate through a telephone line that an infraction has occurred or in general that the alarm procedure has been activated, to a predetermined telephone user. Moreover, in some cases the theft-prevention device allows a more specific indication of the infraction taking place to be sent to such a user, through such a telephone line.
The Applicant has observed that apparatuses for signalling anomalies in electrical devices supplied with power by the network are effective locally, i.e. they work if the user who receives the alarm signal is close to the device. For example, if the signalling apparatus foresees a sound alarm, the user must be situated a short distance away so as to be able to hear it. Similarly, optical alarms, such as lights, must be directly visible by the user.
The Applicant has made an apparatus for signalling anomalies in electrical devices that is able to communicate remotely and in real time information about the anomaly itself to a user connected with such an apparatus through a communication line.
An aspect of the present invention concerns an electronic apparatus for signalling anomalies in an electrical user device that can be fed with power by an electrical power source, characterised in that it is electrically connected between said source and said user device and in that it comprises at least one current sensor suitable for detecting the current emitted by such a source and a transmission interface suitable for communicating the presence of an anomaly of the user device to a user remotely and in real time through a predetermined communication protocol.
Further purposes and advantages of the present invention shall become clearer from the following description and from the attached drawing, provided purely as a non-limiting example, in which:

figure 1 is a block diagram of the apparatus according to the present invention applied to an electric device power by the alternating voltage supply.

With reference to the quoted figure, the electronic apparatus 2 for signalling anomalies in electrical devices according to the present invention is preferably inserted between an electrical power source S, for example the conventional source of the alternating voltage supply, and an electrical user device U.
The apparatus preferably comprises a direct voltage power supply 21 that takes the alternating voltage of the supply and transforms it into a direct electric voltage in order to feed the apparatus as a whole and at least one current sensor 22 suitable for detecting the current emitted by such a source. The apparatus can be equipped with an auxiliary power supply battery 23 that can be kept charged during the normal operation of the power supply of the source, whilst it can feed the apparatus in the case in which the power supply of the source is lacking.
An electronic processing unit 24, able to be fed with power either by the power supply 21 or by the battery 23 communicates with such a current sensor 22 and controls a transmission interface 25 according to a management programme of the apparatus that has been suitably stored.
Such a processing unit takes care of continuously checking the flow of current towards the user, signalling to the end user, preferably automatically, predetermined anomaly situations through the sending of messages through such a transmission interface 25.
Examples of anomalies are defined as the occurrence of one or more of the following conditions:

user switched off or not working;
absence of power supply to the apparatus;
error detected by a self-diagnostic system of the apparatus.

Such a transmission interface is able to communicate with the user information about such an anomaly remotely and in real time through a predetermined communication protocol.
Such a transmission interface is able to communicate with the user through a communication protocol of the PSTN (Public Switched Telephone Network) type, which represents the conventional landline telephone connection, which we all use to contact the most varied interlocutors and where just the number of the receiver has to be known to be able to reach them with a phone call, with a call via modem, or else with an SMS message so that the user is able to receive information about the anomaly through a fixed telephone.
Moreover, such an interface can communicate with the user through a GPRS (General Packet Radio Service) transmission protocol for mobile telephone communication, so that the user is able to receive information about the anomaly through a mobile telephone. Moreover, such an interface allows the apparatus to communicate with the internet for example through connection with a local LAN or WLAN network, so as to be able to send messages to the user for example through the INTERNET.
In brief, the messages to notify the anomaly are sent to one or more known receivers, identified in the configuration process of the apparatus, through one of the aforementioned telecommunications technologies or equivalent ones.
Moreover, the apparatus is able to signal the resetting of one or more conditions considered anomalies (voltage dips of the source S that do not mean immediate alarm but just temporary handicap).

Claims

Electronic apparatus (2) for signalling anomalies in an electrical user device (U) able to be fed by an electrical power source (S), characterised in that it is electrically connected between said source and said user device and in that it comprises at least one current sensor (22) suitable for detecting the current emitted by such a source and a transmission interface (25) suitable for communicating the presence of an anomaly of the user device to a user remotely and in real time through a predetermined communication protocol.
Apparatus according to claim 1, also comprising an electronic processing unit (24) that communicates with such a current sensor and controls such a transmission interface.
Apparatus according to claim 1, also comprising a power supply (21) that takes the voltage from the source and transforms it into a direct electric voltage in order to supply the apparatus as a whole.
Apparatus according to claim 3, also comprising an auxiliary power supply battery (23), which can be kept charged during the normal operation of the source, whilst it can feed the apparatus in the case in which the supply of the source itself is lacking.
Apparatus according to claim 1, in which such a communication protocol is of the PSTN type.
Apparatus according to claim 1, in which such a communication protocol is of the GSM/GPRS type.
Apparatus according to claims 5 and 6, in which the user is able to receive information on the anomaly through a fixed telephone or a mobile phone.
Apparatus according to claim 1, in which such a communication protocol allows the apparatus to communicate with the Internet.
Apparatus according to claim 1, in which anomalies are defined as the occurrence of one or more of the following conditions:
• user switched off or not working;

• absence of power supply to the apparatus;

• error detected by a self-diagnostic system of the apparatus.
Apparatus according to claim 1 in which the resetting of one or more conditions considered anomalies (voltage dips of the source S that do not mean immediate alarm but just temporary handicap) is also signalled.