EP3304509B1 - Method, device, and system for transmitting and differentiating conditions upon the triggering of an alarm - Google Patents

Description

The present invention relates to a method, an apparatus and a system for transmitting and differentiating constitutional states when an alarm is triggered. In particular, a system is provided for communicating and differentiating constitutional states during and after a personal emergency response system (PERS) or social emergency network (SEN) notification system.

• EP 1 679 672 A1 , "Portable pulse monitoring device and method of its operation",
• PCT/EP 2014 055495 , WO 2014/170081 A1 , "System and method to facilitate assistance in distress situations",
• PCT/EP 2015 / 060331 , "Personal Emergency Response System & Method of Operation:
  1. a) Energy conservation in bracelets and pendants;
  2. b) bread crump / beeline GPS positioning;
  3. c) mobile Internet-based SEN functionality",

und ist im Zusammenhang mit diesen zu sehen. Auf die dort beschriebenen Funktionsweisen, insbesondere für die tragbaren elektronischen Vorrichtungen, Energiesparmodi und Anwendungsfälle derselben wird Bezug genommen. Sie findet auch darüber hinaus in anderen Anwendungen vor allem und bevorzugt zur Alarmauslösung Anwendung.This invention is a subsequent application of the same inventor to the inventions:

• EP 1 679 672 A1 , "Portable pulse monitoring device and method of its operation",
• PCT / EP 2014 055495 . WO 2014/170081 A1 , "System and method to facilitate in distress situations",
• PCT / EP 2015/060331 , "Personal Emergency Response System & Method of Operation:
  1. a) Energy conservation in bracelets and pendants;
  2. b) bread crump / beeline GPS positioning;
  3. c) mobile internet-based SEN functionality ",

and should be seen in the context of these. The functions described therein, in particular for the portable electronic devices, energy-saving modes and applications thereof, reference is made. In addition, it is also used in other applications above all and is preferred for triggering alarms.

Description of the Prior Art starting position

• älteren Menschen,
• hilfsbedürftigen Menschen, sowie
• Kindern, ferner
• Personen in Berufsgruppen, die besonderen, orts- und/oder berufsspezifischen Gefahrensituationen ausgesetzt sein können.

Personal emergency systems have been introduced into the lives of, in particular, the last 20 years

• older people,
• needy people, as well
• Children, further
• Persons in occupational groups who may be exposed to particular, location- and / or occupation-specific hazardous situations.

Common to all systems is that after triggering the emergency alarm, one or more third parties, be it an emergency center, usually a call center, is called, or one or more people from the family and / or circle of the user.

It is noticeable that in all emergency systems that are currently available on the market, the alarm is transmitted undifferentiated. The reason for this is that the emergency systems industry was originally reliant on landline telephone lines that only had the option of being called by the call center or the circle of friends; by demand, or at least they should be able to find out what had reason.

problem Statement

This has the negative consequence that emergency systems are unpopular on the market, inter alia, because, for lack of differentiation, the receiver of the emergency signal is put into a condition that requires the utmost attention and immediate action, even if such a case does not exist; for example, an elderly person Having made an agreement with a family member that the family member cares for the elderly, not only in an emergency but also, for example, for this cook. If the older member of the family feels a strong hunger, he or she will sound the alarm, for example because it has forgotten the phone number of the younger member of the family, and thus trigger the same emotional state in the younger member of the family as in an accident. Only the inquiry leads to the all-clear, reassurance and clarification of the situation. Conversely, using the alarm call to order food with the family member for several years at a time might induce a mental state of "he / she is hungry again" and cause a delayed reaction that may not respond to a sudden, real and serious emergency.

description

The present invention is provided by the appended claims. In particular, the present invention provides a method for differentiating constitutional states in triggering an emergency alarm on a portable electronic device, comprising displaying a plurality of alarm conditions; Determining a first selection of a user, the first selection determining a type of alarm condition; Displaying an urgency and / or intensity scale; Determining a second selection of the user, wherein the second selection corresponds to an urgency and / or intensity of the alarm condition of the first selection; and transmitting an alarm signal including previously acquired location data of the electronic device to a predetermined circle of alarm receivers, wherein the predetermined circle of alarm receivers by the user in advance in the portable electronic device in response to the plurality of alarm conditions and the urgency and / or intensity of an alarm condition is determined, wherein at predefined locations other correspondingly predefined alarm conditions are displayed and informed accordingly other circles of alarm receivers with customized alarm signal.

The term "emergency alarm" or "alarm" is to be construed in the context of the present invention. For example, an emergency from a medical incident requiring immediate action (heart attack) to an accident in the sense of having a severe fall to ankle may result in less severe events that in normal language do not pose an emergency or alarm, such as hunger , Boredom, freezing etc.

In one embodiment of the present invention, the indication of the urgency and / or intensity scale may be in the form of a graph, where one axis of urgency and the other axis correspond to the intensity of the incident. Thus, a user of an electronic device with a touch-sensitive display device ("touch screen") with a single movement, e.g. touching a point in the diagram or dragging a marker to the desired point of the diagram, setting the data regarding urgency and intensity.

In one embodiment of the invention, the indication of the plurality of alarm conditions is limited by a detection result of a sensor of the electronic device. For example, For example, the selection may be automatically limited to a number of different types of crashes or accidents when a tilt or acceleration sensor senses an unusual tilting movement or impact. In one embodiment, the restriction of the alarm conditions is made by resorting a displayed list, but unlikely emergencies are still displayed, but displayed further down the list.

In one embodiment of the invention, each possible alarm state corresponds to an adjustable circle of alarm receivers, the second selection of the user expanding the customizable circle of alarm receivers depending on the selected urgency and / or intensity if the urgency and / or intensity exceeds a predetermined alarm state threshold ,

In conjunction with a patent of the patent applicant (WIPO WO 2014/170081 . DE 812752671 ) can be determined by the urgent urgency as well as by both urgency and intensity modifications to contact more people or less wide groups of people and first responders.

In one embodiment of the invention, the method is carried out on an electronic device that is in a personal emergency system, PERS, or a social Emergency Network, SEN, is involved.

In one embodiment of the invention, the method further comprises displaying a scale corresponding to a privacy setting, determining a privacy selection of the user, and restricting the circle of alert recipients determined by the first selection and the second selection of the user based on the user's privacy selection.

In one embodiment of the present invention, there is provided an electronic device for differentiating constitutional states when an emergency alarm is triggered, comprising a display device; and a calculation unit adapted to display a plurality of alarm conditions on the display device; Determining a first selection of a user, the first selection determining a type of alarm condition; Displaying an urgency and / or intensity scale on the display device; Determining a second selection of the user, wherein the second selection corresponds to an urgency and / or intensity of the alarm condition of the first selection; and transmitting an alarm signal including previously acquired location data of the electronic device to a predetermined circle of alarm receivers, wherein the predetermined circle of alarm receivers by the user in advance in the portable electronic device in response to the plurality of alarm conditions and the urgency and / or intensity of an alarm condition is determined, wherein at predefined locations other correspondingly predefined alarm conditions are displayed and informed accordingly other circles of alarm receivers with customized alarm signal.

In one embodiment of the invention, the electronic device further comprises a sensor, wherein the indication of the plurality of alarm conditions is limited by a detection result of the sensor.

In one embodiment of the invention, each possible alarm state corresponds to an adjustable circle of alarm receivers, the second selection of the user expanding the customizable circle of alarm receivers depending on the selected urgency and / or intensity if the urgency and / or intensity exceeds a predetermined alarm state threshold ,

In conjunction with a patent of the patent applicant (WIPO WO 2014/170081 . DE 812752671 ) can be determined by the urgent urgency as well as by both urgency and intensity modifications to contact more people or less wide groups of people and first responders.

In one embodiment of the invention, the electronic device is incorporated into a personal emergency system, PERS, or a social emergency network, SEN.

In one embodiment of the invention, the computing unit is further adapted to display a scale on the display device that corresponds to a privacy setting; Determining a privacy selection of the user; and restricting the circle of alarm receivers, as determined by the first selection and the second selection of the user, based on the user's privacy selection.

In one embodiment of the invention, there is provided a system for differentiating constitutional states upon the triggering of an emergency alarm, comprising a display of preset constitutional states that may be selected upon the occurrence of an emergency alarm; the system being adapted to inform certain default first responders according to an election.

In one embodiment of the invention, the choice of the user may trigger other, pre-set external technical consequences.

In one embodiment of the invention, the selection of the constitutional state coincides with the triggering of the emergency signal.

In one embodiment of the invention, at predetermined speeds, other correspondingly predefined constitutional states are displayed and determined, and according to the choice made, other groups of persons are informed with a customized message.

In one embodiment of the invention, if established, predefine Places other according to predefined constitutional states are displayed and fixed and informed accordingly other groups with customized message.

In one embodiment of the invention, there is provided a computer program product adapted to perform, when executed by an electronic device, a method as described above.

In one embodiment of the invention, there is provided a computer-readable storage medium comprising program code that, when executed by an electronic device, performs a method as described above.

Optional embodiments

In an optional embodiment, a system for differentiating constitutional states upon triggering of an emergency alarm comprising a display of preset constitutional states that can be selected upon triggering of an emergency alarm is provided; the system being adapted to inform certain default first responders according to an election.

In an optional embodiment, constitutional state and the corresponding preset intensity and urgency are communicated according to the choice.

In an optional embodiment, the user may alter the intensity and / or urgency.

In an optional embodiment, the user's choice may trigger other, pre-set external technical consequences.

In an optional embodiment, the selection of the constitutional state coincides with the triggering of the emergency signal.

In an optional embodiment, information is transmitted without urgency.

In an optional embodiment, the default group of persons is changed at and by the selection.

In an optional embodiment, at established speeds, other correspondingly predefined constitutional states are displayed and determined, and according to the choice made, inform other groups of persons with adapted messages.

In an optional embodiment, other predetermined predefined constitutional states are displayed and determined at fixed, predefined locations and correspondingly informed to other groups of persons with a customized message.

In an optional embodiment, other technical consequences and events are triggered.

In an optional embodiment, sensors triggering the emergency signal at the same time select the constitutional state which corresponds to the determined cause of tripping.

In an optional embodiment, there is no differentiation of the first responders.

In an optional embodiment, further stored information is transmitted from the device used to trigger the alarm.

In an optional embodiment, further stored information is transmitted from a device on which the information is stored.

In an optional embodiment, the information to be transmitted is calculated by an algorithm that uses the transmitted differentiation and / or other transmitted values.

Explanation of the invention

A system in which first a differentiation takes place at the user's choice, what kind of more or less strongly felt emergency is and in a further step as a consequence of this election a far differentiating emergency alarm in which on the one hand another group of first responders (first responder ) can be addressed; on the other hand in interaction with patent WIPO WO 2014/170081 ( DE 812752671 ) of the undersigned patent applicant or, more precisely, with the lifecircles described therein, a differentiation also take place to the extent that other technical consequences can be triggered after combination of established location and differentiated indication of the emergency.

Description of the method

In the following, we will first describe how a differentiation after the alarm can take place after the alarm has been triggered; Part 2 shows how the alarm triggering and differentiation can take place at the same time

1. Alarm and subsequent differentiation

If user emergency systems are commercially available today, a countdown is triggered on a regular basis, which gives the triggering user the possibility, if he has accidentally pressed the button or if the emergency alarm has been triggered for other reasons, to cancel the alarm before sending it , The period of time is regularly between 5 and 10 seconds, on the one hand sufficient to prevent the alarm triggering, on the other hand, no substantial time, the essential Worsening the situation of the initiator.

This period of time can now be used to carry out an evaluation of his emergency self-directed the triggering user. This process and the result of this process will be referred to below as "differentiation".

If the user chooses nothing, or he can not choose anything, no separate message and thus the default case would be transmitted; Thus, for example, all stored first responders are informed about the emergency.

Solves a sensor, such as If a fall sensor sounds the alarm, it can be automatically differentiated which type of emergency triggered the alarm; for example, in the case of a bracelet or trailer with a fall sensor and a manual actuation button, the case itself or the manual actuation of the emergency button could be reported as differentiation. From this, the recipient can now conclude on the one hand, whether the triggering person has fallen or was even able to cancel the emergency signal, and u.U. Data underlying the trip.

Especially in the case of manual triggering the user of the emergency system is now further given the opportunity to select from a list of predefined and / or pre-set by himself situations. Typical situations would be, for example, fall, fire, nausea, dizziness and the like.

In a modification of the invention, the user may additionally or only be provided with special differentiations, which may only be isolated and / or regionally and / or temporally important, such as in a civil war zone impact of grenades or the sighting of attackers, at one Excursion the disorientation.

Consequences of differentiation a) Communication to differentiated groups of people

As a result of the setting chosen by the user - differentiation - it can be deposited a priori that different persons or groups are informed.

Thus, if the differentiation "hunger" was selected in the above case, only one message "I am hungry" would be sent to the family member preset for this differentiation, if the differentiation "I am fallen" was chosen, a larger, preset group of people could be informed Default "nausea" relatives and the family doctor.

The presetting can usually be stored or provided with 2 components: Once a certain urgency i. how fast should the recipient act and, second, the intensity of the actual or perceived severity of the emergency in the eyes of the user.

As an example, the two extremes fire and hunger are called: in fire, both intensity and urgency are extremely high, therefore the regularly preset persons, and the presented number of the fire department contacted, so a large group of people and asked for immediate and targeted help; the default hunger would regularly show a low intensity and a low urgency, as usually a reaction within 20-30 minutes is quite sufficient and at least in the normal context, no pain can be determined by hunger, rather, first an uncomfortable feeling.

This can have an impact on the graphical presentation of the message function: thus, the user can be given the opportunity to change both intensity and urgency. Thus, in the case of hunger, for example, if the user has taken a long time to trigger the alarm, it may be both urgent "I really want to eat something in the next few minutes" as well as intensity - "I'm so hungry that it hurts / I feel bad" can be stopped.

b) Combination LifeCircles and Differentiation

In conjunction with a patent of the patent applicant (WIPO WO 2014/170081 . DE 812752671 ) can be determined by the urgent urgency as well as by both urgency and intensity modifications to contact more people or less wide groups of people and first responders.

Thus, the attitude "strange people in the house" can usually be sent to neighbors of the house with little urgency and low intensity; However, if intensity and / or urgency were to be increased, this could be pre-formulated by a larger group of people until, for example, the police are called if, for example, the user is able to perceive an attempted intrusion by strangers in the exit.

c) technical consequences

• einfach - "ich befinde mich in einem merkwürdigen Ort" über
• schwerwiegend - "merkwürdige Menschen kommen mir entgegen" bis hin zu
• akut, "Beginn eines Vergewaltigungsversuchs"

neben der reinen Information verschiedene technische Konsequenzen nach sich ziehen; so würde im einfachen und schwerwiegenden, nicht akuten Fall nur eine Positionsangabe übermittelt werden mit der Bitte, dass der Empfänger binnen Minutenfrist sich nach dem Befinden der Nutzerin erkundigt; beim schwerwiegenden Fall, könnte zusätzlich zum Beispiel neben der Übermittlung der Position auch eine Telefonverbindung an dieselben oder andere oder mehr Personen hergestellt werden, um Zeugen der Situation zu haben; und beim akuten Vergewaltigungsversuch vielleicht sogar keine dritte Person, sondern nur oder zusätzlich die örtliche Polizei informiert werden.The differentiation can also entail various technical consequences, ie influence subsequent system sequences. For example, in a case of a device designed to help particular young women prevent rape, it is possible to pre-set a transmission of emergency situations

• simply - "I am in a strange place" about
• serious - "strange people come to meet me" to
• acute, "beginning of a rape attempt"

in addition to the pure information entail various technical consequences; Thus, in the simple and serious, non-acute case, only a position would be transmitted with the request that the recipient within a few minutes to inquire about the condition of the user; In the serious case, in addition to Example, in addition to the transmission of the position also a telephone connection to the same or other or more persons are made to witness the situation; and in the case of an acute rape attempt, perhaps even no third person, but only or additionally the local police are informed.

• das Aufschalten einer Telefon- und Videokonferenz mit den Ersthelfern und örtlichen Behörden, also Polizei, Feuerwehr und Sanitätsdienste, damit diese die Geschehnisse mitverfolgen und entsprechend besser handeln können,
• technische Ereignisse ausgelöst werden, wie das Einschalten von medizinischen Gerätschaften, die mit der Ereignismitteilung übereinstimmen, oder technische Gerätschaften ausgelöst werden wie das Versprühen von Farbdampf oder -pulver zur besseren Ortung des Nutzers und schließlich
• automatisierte Warnmeldungen ausgelöst werden, die die Umgebung und die Differenzierung des Vorfalls beinhalten, wie z.B. die automatisierte Suche und Anzeige von Defibrillatoren in der Nähe bei Differenzierung "Herzanfall", damit eintreffende Ersthelfer bereits akustisch wissen, wo sich der nächste Defibrillator befindet.
• weitere, voreingestellte Informationen an zu benachrichtigenden Personen übersendet werden, sei es durch das zum Auslösen benutzte Gerät selbst, oder durch externe Gerätschaften, in denen die zu übermittelnde Information abgespeichert ist ("Server"), gleich ob diese statisch sind oderdurch einen Algorithmus gefunden werden, der die festgestellten Werte und/oder ausgewählten Differenzierungen verwendet.

In addition - at least - another technical consequence can be preset, such as

• the initiation of a telephone and video conference with the first responders and local authorities, ie the police, the fire brigade and the medical services, so that they can follow the events and act accordingly,
• technical events are triggered, such as switching on medical equipment that matches the event message, or technical equipment triggered such as the spraying of paint steam or powder for better location of the user and finally
• generate automated alerts that include the environment and the differentiation of the incident, such as the automated search and display of nearby defibrillators when differentiating "heart attack" so that incoming first responders already know acoustically where the next defibrillator is.
• Further, preset information to be notified to persons to be notified, either by the device used for triggering itself, or by external equipment in which the information to be transmitted is stored ("server"), whether they are static or are found by an algorithm using the detected values and / or selected differentiations.

2. Alarm and simultaneous differentiation

In a modification of the invention, there is the possibility that alarm triggering and differentiation coincide in time.

In this case, the alarm button and the predefined emergency conditions are timed side by side. So if a certain emergency condition is pressed, it triggers the alarm at the same time, under certain circumstances again with the countdown mentioned above for protection against false tripping.

This may be such that either only the alarm button is shown, which is then pushed towards the state to be transmitted, or no alarm button is displayed, but on a display all or part of the predefined emergency conditions, which then manually by pressing the Emergency alarm or trigger the countdown.

3. Information without differentiation

In a further modification to FIGS. 1 and 2 of the invention, an area may be reserved, preferably at the left and / or bottom of the display, to present information without intensity and / or urgency, such as the content "please call back on occasion" , This differs from a normal message in that it can be sent to one, some or all of the default "first responders".

4. Change in movement of the user

• wo sich der Nutzer befindet und/oder
• ob er sich in Bewegung befindet oder statisch agiert, ebenso je nachdem
• ob er sich im eigenen Haus oder in einem anderen Haus, im Freien oder in einem definierten LifeCircle befindet (siehe Patent WIPO WO 2014/170081 = DE 812752671 ). Die im vorgenannten Patent beschriebene WiFi-Blink Technologie kann dazu genutzt werden.

In a modification, the type of differentiation can be changed in addition to the clearer graphical representation, depending on

• where the user is located and / or
• whether it is in motion or static, as well as ever
• whether he is in his own house or in another house, outdoors or in a defined LifeCircle (see patent WIPO WO 2014/170081 = DE 812752671 ). The WiFi flash technology described in the aforementioned patent can be used for this purpose.

• der Nutzer sich zu Hause befindet und damit nur den typischen Gesundheitsgefahren unterliegt,
• sich in seinen Arbeitsbereich begeben hat, für den bereits besondere, mit der Arbeit verbundene Gefahren definiert sind, und/oder
• sich mit einer Geschwindigkeit
  • zwischen 1 und 6 - 7 km/h (typisches Gehen),
  • zwischen 7 und 12 - 16 km/h (Joggen / Laufen bis hin zu Ausdauer-Wettkampftempo je nach Konstitution des Nutzers),
  • oder zwischen etwa 13 und 110 bis 150 km/h (typische Fahrgeschwindigkeit in einem Personenkraftwagen),
  • oder noch schneller (typische Geschwindigkeit in einem möglicherweise öffentlichen Fortbewegungsmittel wie Bahn und Flugzeug) bewegt.

So can be distinguished, whether

• the user is at home and therefore only subject to typical health hazards,
• has moved to his / her area of work for which specific hazards associated with the work have already been defined, and / or
• at a speed
  • between 1 and 6 - 7 km / h (typical walking),
  • between 7 and 12 - 16 km / h (jogging / running up to endurance competition pace depending on the constitution of the user),
  • or between about 13 and 110 to 150 km / h (typical driving speed in a passenger car),
  • or even faster (typical speed in a possible public transportation such as train and plane) moves.

Each of these locations and movement speeds can be predefined specific hazard situations and / or first responders and be differentiated accordingly when the location or the speed of movement.

Claims (16)

1. A method for differentiating constitutional states of a user when triggering an emergency alarm on a portable electronic device, comprising:

   displaying a plurality of alarm states;

   determining a first user selection, wherein the first selection determines a type of the alarm state;

   displaying an urgency and/or intensity scale;

   determining a second user selection, wherein the second selection corresponds to an urgency and/or intensity of the alarm state of the first selection; and

   transmitting an alarm signal including previously acquired location data of the electronic device to a predetermined group of alarm recipients, wherein the predetermined group of alarm recipients is determined in advance by the user in the portable electronic device depending on the plurality of alarm states and the urgency and/or intensity of an alarm state, wherein for predefined locations, other correspondingly predefined alarm states are displayed, and correspondingly other groups of alarm recipients are informed with an adjusted alarm signal.
2. The method according to claim 1, wherein a detection result of a sensor of the electronic device limits the displaying of the plurality of alarm states.
3. The method according to one of the preceding claims, wherein each possible alarm state corresponds to an adjustable group of alarm recipients, and wherein the second user selection expands the adjustable group of alarm recipients depending on the selected urgency and/or intensity when the urgency and/or intensity exceeds a predetermined threshold of the alarm state.
4. The method according to one of the preceding claims, wherein the method is implemented on an electronic device which is integrated into a personal emergency system, PERS, or a social emergency network, SEN.
5. The method according to one of the preceding claims, further comprising:

   displaying a scale corresponding to a privacy setting;

   determining a privacy selection of the user; and

   limiting the group of alarm recipients determined through the first and second user selections based on the privacy selection of the user.
6. An electronic device for differentiating constitutional states of a user when triggering an emergency alarm, comprising:

   a display device; and

   a computing unit, adjusted to:

   display a plurality of alarm states on the display device;

   determine a first user selection, wherein the first selection determines a type of the alarm state;

   display an urgency and/or intensity scale on the display device;

   determine a second user selection, wherein the second selection corresponds to an urgency and/or intensity of the alarm state of the first selection; and

   transmit an alarm signal including previously acquired location data of the electronic device to a predetermined group of alarm recipients, wherein the predetermined group of alarm recipients is determined in advance by the user in the portable electronic device depending on the plurality of alarm states and the urgency and/or intensity of an alarm state, wherein for predefined locations, other correspondingly predefined alarm states are displayed, and correspondingly other groups of alarm recipients are informed with an adjusted alarm signal.
7. The electronic device according to claim 6, further comprising:
   a sensor, wherein a detection result of the sensor limits the displaying of the plurality of alarm states.
8. The electronic device according to one of claims 6 and 7, wherein each possible alarm state corresponds to an adjustable group of alarm recipients, and wherein the second user selection expands the adjustable group of alarm recipients depending on the selected urgency and/or intensity when the urgency and/or intensity exceeds a predetermined threshold of the alarm state.
9. The electronic device according to one of claims 6 to 8, wherein the electronic device is integrated into a personal emergency system, PERS, or a social emergency network, SEN.
10. The electronic device according to one of claims 6 to 9, wherein the computing unit is further adjusted to:

    display a scale corresponding to a privacy setting on the display device;

    determine a privacy selection of the user; and

    limit the group of alarm recipients determined by the first and second user selections based on the privacy selection of the user.
11. A system for differentiating for performing a method according to one of claims 1 to 5, comprised of a display of preset constitutional states that can be selected after triggering an emergency alarm; wherein the system is adjusted to inform preset first responders determined based on a selection.
12. The system according to claim 11, in which the user selection can trigger other, preset external technical effects.
13. The system according to one of claims 11 to 12, in which the selection of the constitutional state is synchronized with the triggering of the emergency signal.
14. The system according to one of claims 11 to 13, in which other correspondingly predefined constitutional states are displayed and fixed at determined speeds, and based on the selection made relayed to other groups of people with an adjusted notification.
15. A computer program product, which is adapted so as to implement a method according to one of claims 1 to 5 when executed by an electronic device.
16. A computer-readable storage medium comprising program code that implements a method according to one of claims 1 to 5 when executed by an electronic device.

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