DE102016201929A1 - communication device - Google Patents

Abstract

The invention relates to a wearable on the body communication device with at least one input interface for data input by a user of the communication device. Furthermore, at least one output interface for data output is provided for presentation to the user. Furthermore, a sensor, in particular mounted on or in the communication device, is provided for detecting at least one measured value on or in relation to the body on which the communication device is mounted. The communication device has a variable input functionality scope and a variable output functionality scope and at least one computing unit. This is designed such that a probability is derived from the measured value that the user to whose body the communication device is mounted is leading a vehicle and at least the input functionality scope or the output functionality amount is changed as a function of the determined probability.

Description

The invention relates to a wearable on the body communication device.

Smart watches are electronic devices that are wearable like a wristwatch and have a variety of functions, in particular features of smart phones. Thus, smart watches have connectivity, i. a connection to, for example, a wireless network is possible, computer functionality, i. e.g. the execution of applications is possible, as well as sensors and actuators. An advantage over portable communication devices such as smart phones is that they do not need to be taken out and kept for reading.

During other operations, e.g. Driving a vehicle, in particular a motor vehicle, results in the problem of the extent to which a motorist is distracted from the traffic by the operation of his smart watch.

It is an object of the invention to provide a way to make the use of wrist-worn communication devices safer.

This object is solved by the independent claims. Advantageous developments are the subject of the dependent claims

The invention relates to a wearable on the body communication device with at least one input interface for data input by a user of the communication device. Furthermore, at least one output interface for data output is provided for presentation to the user.

Furthermore, a sensor, in particular mounted on or in the communication device, is provided for detecting at least one measured value on or in relation to the body on which the communication device is mounted. The communication device has a variable input functionality scope and a variable output functionality scope and at least one computing unit. This is designed in such a way that a probability is derived from the measured value that the user to whose body the communication device is attached leads a vehicle and at least the input functionality or the output functionality is changed as a function of the determined probability.

The invention further relates to a corresponding method, system, computer program and data memory.

The invention will be further explained by means of embodiments, which are partially illustrated in the figures. Show it:

1 : Mechanical switch for switching the driving mode of a Smart Watch on and off

2 : Button in the system menu of the Smart Watch for switching the driving mode on and off

3 : Switching function modes with different functionalities of a portable communication device in case of intended actions in a loop

4 : Automatic switching of functional modes with different functional scope of a portable communication device depending on a hazard potential.

The invention is based on considerations to what extent the portable communication device, in particular a smart watch, depending on their respective functionality affects the user's attention. If it functions only as a watch, no impairment is assumed by the mere reading of the user, while when used as a smart phone is expected from a greater impairment of traffic safety by distraction during operation.

A smart watch potentially causes the danger of distracting a driver due to its many notifications. For this reason, in the context of the following exemplary embodiments, ways are described of preventing or suppressing unimportant notifications as well as traffic-safety-affecting outputs and inputs when the wearer of the smart watch is driving a motor vehicle.

Currently available smart watches can not consider whether their wearer is driving a motor vehicle. The regulations for the use of Smart Watches when driving motor vehicles are currently unclear (gray area). The user can put away his smart watch so that he does not see, switch off or ignore it. This problem with wearable communication devices is relevant for all drivers, whether cyclists, motorcyclists, truck drivers, motorists, etc. However, it occurs particularly strong in motorists on - for example because of the stay in a locked room and the large proportion of cars the motor vehicles. For this reason, in the following often spoken by drivers, but the embodiments are in principle applicable to all drivers, especially for all Motor vehicle driver with similar acceleration patterns as car, truck or bus driver.

According to preferred embodiments, similar to portable communication devices such as cell phones or smart phones having a flight mode, a "drive mode" is used on the smart watch. Although embodiments describe a smart watch, they also refer to any portable communication device, e.g. on the arm, near the wrist or glasses.

This driving mode is actively switched off and on by the wearer of the smart watch, according to one embodiment, when driving a vehicle, e.g. Car or bike rides.

"Driving mode off" means that all functions, in particular outputs, notifications and inputs are possible.

"Drive mode on" means that all functions that endanger traffic safety are switched off. The programs that provide these features can continue to run in the background on the smart watch, but they can not be typed or entered because interacting with the smart watch poses a threat to traffic safety.

If expenditure does not endanger the safety of the road, as it is e.g. If there is only a single pictogram, these notifications may also be displayed in drive mode. Entries on the Smart Watch are generally not possible in drive mode.

In the simplest case, the drive mode ("simple drive mode" or "watch drive mode") includes only the display of the clock and otherwise no further notifications, inputs or outputs.

According to one embodiment, an extension A of the "simple drive mode" is provided with an output of clock-related functions, such as e.g. Alerts of an alarm clock, appointment reminders, etc.

An input of alarms, e.g. the setting of an alarm clock, and appointments is not possible because of the associated distraction from the traffic.

Another independent extension B is the "telephone mode", which also allows telephone calls as with a hands-free kit. An indication of or notification of incoming calls is thus possible, but the operation has to be done via an approved hands-free kit.

A generous extension (extension C) is the "notification drive mode" where all notifications are allowed as long as they do not compromise traffic safety and require input. Entries are generally not possible in driving mode. A threat to traffic safety is given for example in text messages such as WhatsApp messages and SMS, as they contain text and reading the text distracts the driver too long from the traffic. Such notifications are not possible in drive mode according to one embodiment.

In the embodiments described below, the term "driving mode" refers to all the above-described variants of a driving mode for smart watches ("simple driving mode" and extensions A-C) or combinations thereof, unless a variant is specifically named.

Switching the Smart Watch on and off is done manually by the Smart Watch wearer or by automatic detection.

With manual adjustment, a driver can thus turn on the driving mode of his smart watch before the start of the journey and can switch off the driving mode after the end of the journey again.

In an automatic detection, the Smart Watch must detect the driving of the car in a reasonable time and then automatically switch to driving mode.

• – Ein- und Ausschalten des Fahrmodus der Smart Watch durch einen „mechanischen“ Schalter (Schaltervariante A), zum Beispiel an der Seite der Smart Watch (z.B. rechts oder oben) wie in 1 gezeigt.

The driving mode of the Smart Watch can be switched on and off manually in one of the following ways:

• - Switching on and off the driving mode of the Smart Watch by a "mechanical" switch (switch variant A), for example on the side of the Smart Watch (eg right or above) as in 1 shown.

In 1 a communication device CD is shown, which is designed as portable on the arm. On one side a mechanical switch S is mounted, via which a driving mode can be switched on and off.

A correspondingly long actuation of this mechanical switch S changes between "drive mode on" and "drive mode off". The switch S is preferably depressed for a correspondingly long time to minimize accidental turning on and off.

In one extension, the switch S may be disabled as long as the portable one Communication device CD, eg a smart watch is not used by its wearer. This can be determined, for example, by whether the screen saver is active, for example, that when not in use, the drive mode switch is disabled or not.

If the screen saver is not active, the Smart Watch is used, then the drive mode switch is active.

In a further embodiment, alternatively or additionally, a button for operating the driving mode in the system menu of the smart watch (switch variant B).

As an alternative or in addition to a mechanical switch, in further exemplary embodiments one or more so-called "softkeys" are provided, in which the function changes depending on the displayed contents.

In the in 2 In the embodiment shown, a system menu with various entries E1-E5 is displayed on the touch screen TS of the communication device CD designed as a smart watch. Operating the driving mode works analogously to switching the flight mode on and off, eg for smart phones, and is stored in entry E4.

Alternatively, of course, a different number and design of the menu entries is possible.

The entry E4 for the driving mode preferably also contains a feedback about the state of the driving mode, for example, about what the operation of the button causes, namely to switch the driving mode on and / or what the current state of the driving mode is, namely "driving mode (is ) On off".

Alternatively or additionally, in other embodiments, an application program or app or widget for a smart watch is provided, the call or use of the driving mode such as a switch on or off (switch variant C).

The state of the driving mode may preferably be indicated via the appearance of the app or widget, e.g. the color of the background or the color of a car in the icon. For example, "red car" with the meaning "driving mode is off" deposited or / and "green car" meaning "driving mode is on".

According to further embodiments, an extension to this binary switching on and off of the driving mode is provided, in which different stages of the driving mode are selectable, e.g. Drive Mode Off - Simple Drive Mode or Clock Drive Mode - Phone Drive Mode - Notification Drive Mode.

The extension is preferably implemented similarly in all three switch variants A-C, in that instead of simply switching between drive mode on / off with each shift or push, all possible drive modes are changed through in an orderly sequential order when shifting or pressing.

When the last drive mode is reached, it is preferable to start again from the beginning, as in a loop.

3 shows an example of such a process. In the case of a first action A1, for example a switching of the driving mode, the state "driving mode OFF" FMOFF is switched to the state "clock driving mode" UFM. In a further action A2 is switched to a state "phone driving mode" TFM. In another action A3, BFM is switched to a "notification driving mode". In a further action A4, the loop starts again from the beginning.

Preferably, in the communication device CD, in particular the Smart Watch, when using an app or a widget (switch variant C), the driving mode state is represented by a corresponding symbol in the icon, e.g. a telephone, telephone with car, clock, etc.

When mechanical switch an extension is provided in which only the first pressing or switching the switch a correspondingly long time must be pressed to effect a switching of the driving mode state. This will then be changed to the next driving mode on the one hand, but set the smart watch in a driving mode selection mode, so that subsequently only short operations of the driving mode switch are necessary. This will speed up the selection of a later drive mode. The drive mode selection mode preferably ends automatically after the switch for the drive mode has not been operated for a certain time.

When the driving mode is automatically switched on, the communication device CD, for example the smart watch, observes its environment by means of its sensors or communicates with its surroundings in order to determine whether its wearer is driver of a car or motor vehicle.

The embodiments listed below provide different methods or methods for this purpose. Every procedure can be taken for granted be used. Alternatively, a combination of at least two, ie several or even all, method is provided, which allows greater reliability in the determination of the state of motion of the vehicle and to be set in the sequence mode, eg driving mode of the communication device.

In the following some methods are described, with which it can be automatically determined whether the wearer of a portable communication device such as a smart watch is currently the driver of a motor vehicle, especially a car.

In these methods, the smartwatch gyroscope, acceleration sensor and compass, collectively known as the inertial measurement unit IME, are used to determine the current driving situation of the smart watch wearer. The methods can be based solely on the IME data, or combined with other non-IME techniques for greater reliability.

An IME measures acceleration in three dimensions (x-y-z). The IME of a smart watch therefore measures the acceleration of its wearer as a person as a whole, but also its own acceleration, for example movements of the hand.

• a) Lenken: Dieses Beschleunigungsmuster BM-L ist immer vorhanden. Neben dem eigentlichen Lenken, das nur bei Richtungsänderungen auftritt, kann BM-L auch Vibrationen des Lenkrads enthalten.
• b) Blinken bzw. Blinker einschalten: Dieses Beschleunigungsmuster BM-B ist nur vorhanden, wenn mit der Hand der Blinker betätigt wird, an der die Smart Watch getragen wird.
• c) Gangschaltung bedienen: Dieses Beschleunigungsmuster BM-G ist nur vorhanden, wenn die Gänge manuell geschaltet werden und mit der Hand die Gangschaltung betätigt wird, an der die Smart Watch getragen wird.
• d) Das Fahren des Autos erzeugt ebenfalls ein charakteristisches Beschleunigungsmuster BM_A durch Anfahren, Beschleunigen, Abbremsen und Anhalten des Autos.

Driving a motor vehicle or car has some characteristic acceleration patterns:

• a) Steering: This acceleration pattern BM-L is always present. In addition to the actual steering, which only occurs when changing direction, BM-L can also contain vibrations of the steering wheel.
• b) Turn on flashing or turn signal: This acceleration pattern BM-B is only present when the flasher on which the Smart Watch is worn is operated by hand.
• c) Operate the gearshift: This acceleration pattern BM-G is only present when the gears are switched manually and the manual gearshift is operated on which the Smart Watch is worn.
• d) Driving the car also generates a characteristic acceleration pattern BM_A by starting, accelerating, decelerating and stopping the car.

The Smart Watch continuously analyzes its IME readings or enough time intervals to determine if the Smart Watch carrier is driving a car. This condition will be referred to as FA in the following. The smart watch switches to drive mode when the following condition is met:
if (FA) then drive mode on FA: = (BM_A and BM_F)

BM_A is met when the smart watch, based on the IME data, determines that it is in a moving car or motor vehicle.

Since in some countries the use of mobile phones is already prohibited when the engine is running, BM_A should include not only the acceleration patterns of a moving car, but also, for example, the acceleration patterns of a running engine (e.g., vibrations).

The presence of BM_A gets higher reliability when there is a characteristic acceleration pattern for getting into a car in a timely environment.

• – Die Smart Watch hat über die IME eine Anzahl n charakteristische Lenkbewegungen festgestellt. Je größer n ist, desto sicherer kann das Führen eines Fahrzeugs durch den Smart-Watch-Träger festgestellt werden, die Zeitdauer bis zu dieser Feststellung ist aber auch länger.
• – Die Smart Watch hat während der Zeitdauer td charakteristische Lenkbewegungen festgestellt. Je länger td ist, desto sicherer kann das Führen eines Fahrzeugs durch den Smart-Watch-Träger festgestellt werden. Natürlich dauert es auch länger.

BM_F is met when the smart watch, based on the IME data, determines that its wearer is the driver of the car and not a passenger. BM_F can be determined from different combinations of BM_L, BM_B and BM_G. BM_F: = BM_L BM_L is met when the smart watch, based on the IME data, determines that its wearer is operating a steering wheel, that is, the driver and not a passenger. BM_L can be determined by different methods (individually or in combination):

• - The Smart Watch has detected a number of n characteristic steering movements via the IME. The larger n is, the safer the driving of a vehicle can be detected by the smart watch carrier, but the time up to this determination is also longer.
• - The Smart Watch has detected characteristic steering movements during the period td. The longer td, the safer the driving of a vehicle can be detected by the smart watch carrier. Of course it takes longer.

Operating the turn signal (BM_B) and shifting the gears (BM_G) are also operations that only the driver of the car performs and that can be recognized as characteristic acceleration patterns from the IME data. In an extension, they are advantageously used to determine whether the wearer of the smart watch is driving a car (BM_F): BM_F: = (BM_L or (BM_L and (BM_B or BM_G))) In this method, steering movements BM_L must always be detected. For one it may also be sufficient to detect only at least one of the driver's characteristic movement patterns: BM_F: = (BM_L or BM_B or BM_G) BM_B and BM_G can be equivalently detected as BM_L over a certain number n of the corresponding characteristic movement patterns or the determination of the corresponding characteristic movement patterns in a period td.

This determination can be made separately or combined for the individual movement patterns BM_L, BM_B and BM_G.

In this case, BM_L, BM_B and BM_G are combined so to speak into a movement pattern driver BM_F and contribute to one and the same n or are observed in one and the same td. FA: = (BM_A and BM_F) An important feature of BM_B and BM_G is that their absence does not mean that the wearer of the Smart Watch would only be a passenger. Due to the design of the car (turn signal lever left or right, automatic transmission, left- or right-hand drive), it may be that the turn signal lever or gear shift are operated by hand without Smart Watch and thus have only very weak characteristic movement pattern or as the automatic transmission does not occur. Even if the driver wears the Smart Watch on the left or right arm, plays a role here.

An alternative or combinable method uses a confidence value to determine that the wearer of the smart watch is the driver of the car. As soon as the smart watch has determined that it is in a moving car via the IME data, it tries to recognize characteristic patterns of movement for a driver. If that is the case, it weights these movement patterns and adds them to the confidence value. If the confidence value exceeds a certain threshold value, the smart watch assumes that its wearer is the driver of the moving car and switches to the driving mode.

The weighting of the detected characteristic events with respect to the threshold determines how fast, but also how reliably the Smart Watch determines whether its wearer is the driver. With a correspondingly low weighting, it is also possible with this method to take into account not so distinct characteristic movement patterns of the driver, such as, for example, vibrations of the steering wheel or the shifting of the gears with the non-smart-watch hand.

With the aging of the recognized characteristic acceleration patterns, the confidence value can also be reduced. For example, the confidence value may be reduced as a function of how long the corresponding acceleration pattern has lasted. The confidence value may be reduced linearly, exponentially or according to some other function up to the value added by the corresponding acceleration pattern.

In the case of automatic switching to the driving mode, according to one exemplary embodiment, only switching into a previously set switch variant is performed, a step-by-step changeover of the driving modes, as in FIG is not possible then.

In an extension, the switch variant can be selected according to the intensity of movement detected from the IME data. For example, the clock drive mode (no further information) may be turned on when there are many steering movements. If it is a quiet ride, so it is mainly just going straight, a driving mode can be selected that allows more information (phone mode or notification mode).

The driving speed may also play a role with respect to what kind of notifications are displayed so that, for example, the received messages are displayed when stopped at a red traffic light.

• – Ein Ausschalten erfolgt, wenn BM_A nicht mehr gilt, das Auto also steht. Hier kann auch noch zusätzlich mit berücksichtigt werden, ob das charakteristische Beschleunigungsmuster für einen laufenden Motor nicht mehr vorhanden ist. Das Fehlen von BM_L bzw. BM_F kann hier als zusätzliche positive Validierung für das Ausschalten verwendet werden.
• – Der Konfidenzwert wird während der Fahrt mitgeführt und ständig aktualisiert. Sinkt er unter einen zweiten Schwellwert, der durchaus tiefer als der erste Schwellwert liegen kann, sogar 0 oder in der Nähe von 0 liegen kann (0 repräsentiert den Wert für ein stehendes Auto oder ein stehendes Auto mit ausgeschaltetem Motor), wird der Fahrmodus der Smart Watch durch sie ausgeschaltet. Diese Umschaltung kann mit sofortiger Wirkung oder nach einer gewissen Verzögerung gültig sein.

In the following, exemplary embodiments of different methods for the automated switching off of the driving mode are described, which can be used individually and in combination:

• - Switching off occurs when BM_A is no longer valid, so the car is stationary. Here, it can also be taken into account whether the characteristic acceleration pattern for a running engine is no longer present. The absence of BM_L or BM_F can be used here as additional positive validation for switch-off.
• - The confidence value is carried during the journey and constantly updated. If it drops below a second threshold, which may well be lower than the first threshold, even 0 or close to 0 (0 represents the value for a stationary car or a stationary car with the engine off), the driving mode is the Smart Watch off through it. This switching can be effective immediately or after a certain delay.

According to further exemplary embodiments, further expansions are provided in which the portable communication device that can be worn on the arm comprises further sensors or can access their data:
According to one embodiment, the GPS module of the smart watch not only delivers the position but also the speed. The speed provides additional information and validation possibilities for the determination of BM_A or for the differentiation of BM_A (car is stationary (with engine on) or car driving) or also for a situation-dependent automatic selection of a driving mode.

The instantaneous speed may be used for expansion for automated toggling between different switch modes of the drive mode. An exemplary embodiment is in 4 shown in accordance with the driving mode is changed depending on a hazard potential GP and a functionality extent F of the driving mode. The hazard potential GP increases to the right, the functionality F decreases to the right.

The smart watch continuously determines a parameter for the hazard potential. For example, this can be the level of speed: the faster the vehicle drives, the greater the risk potential. As soon as the hazard potential has exceeded a threshold value, the smart watch switches to a driving mode with less functionality, for example at threshold thr1, from the notification driving mode to the telephone driving mode.

In the case of several switch variants for the driving mode, the higher the risk potential, the lower the functionality of the driving mode, preferably in discrete steps.

The threshold values for switching the driving modes also follow this order. For this means that the first threshold value thr1 is smaller than a second threshold value thr2.

In order to avoid a constant switching back and forth between two driving mode switching variants, if the hazard potential fluctuates around the corresponding threshold value, the switching can also take place only if the corresponding threshold value has been permanently exceeded for a certain period of time tg. In this case, it is also possible that driving mode switching variants are skipped, that is, for example, to change directly from the clock to the notification driving mode.

The parameter for the hazard potential can also be used for the automatic determination for switching the driving mode on and off (BM_A).

The Smart Watch's microphone can also augment or supplement the determination of BM_A by analyzing its audio signals to determine whether it contains engine noise. Listening to radio programs can also be an indication of BM_A.

Alternatively or additionally, camera data of the smart watch can also be used, for example to determine the environment.

If the Smart Watch measures so-called health functions such as blood pressure and pulse or a frequency of winking, the Smart Watch should be placed in a driving mode with low functionality, e.g. switch the clock drive mode UFM as soon as it causes an excited driver to be affected by increased blood pressure and heart rate and / or via the microphone via a changed speech melody or speed or certain contents, e.g. Recognizes bad words.

The following enhancements or alternatives are provided for communication with the environment "Auto":
When the smart watch connects to the car, for example via Bluetooth, and contextual information is available that the linked page is actually a car, that link information can be advantageously used for determining whether the smart watch wearer is the driver , This can be used to validate BM_A, or even replace the determination of BM_A using the IME, since BM_F or the corresponding combinations of BM_L, BM_B, and BM_G are actually sufficient for determining whether the driver is or not, if it is clear that the smart watch is in the car.

If the car can tell the Smart Watch whether the engine is on or off, the presence of connectivity with the car and the message "engine on" via this link can be used as an alternative to an existing BM_A.

If the IME can tell which arm the Smart Watch is worn on, and if the car can provide contextual information about structural characteristics such as left / right turn signal levers, manual / automatic transmissions with connectivity, the Smart Watch can derive comparative values from them what frame BM_B and BM_G would have to occur if the wearer of the smart watch were the driver of that car.

If the car can notify the smart watch whether the turn signal has been activated or the gear has been changed, the presence of connectivity with the car and notifications of operation of the turn signal, in addition to going to the left or right, or changing the gear on this connection can also Comparative values lead to better describe the expected movement pattern of the driver and thus BM_B and BM_G can be determined more reliable.

The position of the car on the map (navigation system) supports the validation and classification of the acceleration patterns detected with the IME by the contextual information about the road conditions (e.g., highway or trunk road or land route).

If the car or motor vehicle of the Smart Watch can also communicate the instantaneous speed via the connection, this can replace the aforementioned speed determination by means of the GPS module.

According to a further advantageous embodiment, a combination of manual and automatic switching on the driving mode takes place. The manual switching causes the driving mode to be switched off or the automatic switching on of the driving mode to be switched on.

According to further advantageous embodiments, an automatic switching on of a driving mode or in general of a state with a reduced scope of functionality can also take place in a further situation, which will be described by way of examples:
The driving mode can also be activated by the wearer of the smart watch in other situations where notifications by the smart watch, such as theater or concert, or the wearer are actively supported by the smart watch through an automatic recognition.

If the smart watch knows its position, and comparing this position with a map showing its wearer in a theater, concert hall or cinema, the smart watch can automatically notify its wearer with a signal and ask him / her in to switch the driving mode. This automatic detection can be accomplished by observing acceleration patterns typical of such situations, e.g. Climb stairs, shake hands, hold champagne glass, etc., be extended.

In the following, an automatic switch-off of the driving mode or, in general, a state with reduced functionality will be described by means of examples:
If the drive mode is switched on, ie while driving, the smart watch constantly checks, or at appropriate intervals, its IME data as to whether the conditions for switching off the drive mode are present.

If BM_A is omitted, the drive mode can be switched off. In some countries, since the use of cell phones is already prohibited when the engine is running, BM_A preferably includes not only the acceleration patterns of a moving car, but also the acceleration patterns of a running engine (e.g., vibrations).

If there are many characteristic acceleration patterns for a driver (BM_F), even if BM_A does not exist, then BM_A may not have been detected reliably or the wearer of the Smart Watch is only driving. In both cases, it does not hurt to turn on the drive mode.

If BM_A is present, but there are no characteristic acceleration patterns for BM_F (driver) over a long period of time, it is very important to weigh whether it is only a quiet stretch of road or if, for example, the driver and front passenger have swapped places while the engine is running , The observation period tdoff for determining that the drive mode can be switched off should therefore be chosen to be sufficiently long, generally much longer than, for example, td.

The drive mode can be switched off if there is a characteristic acceleration pattern for getting out of a car. At the end of this acceleration pattern, BM_A should no longer exist.

The embodiments and their extensions can also be applied to other "smart" output devices, such as smart glasses, such as Google Glass.

An advantage of the embodiments described above lies in the automatic detection by a combination of sensors and other data sources whether the wearer of the smart watch is driving a vehicle.

This leads to an increase in traffic safety through the driving mode on the Smart Watch, which shuts off all functions of the Smart Watch, which distract the driver from the current traffic situation. The background functionality of the Smart Watch is not interrupted.

Since depending on the extension of the driving mode only to short and non-distracting expenses are possible, the wearer of the Smart Watch as a driver to better focus on the traffic. Road safety is thereby increased.

Since inputs during the driving mode of the smart watch are generally not possible, the wearer of the smart watch as a driver can not be distracted from the traffic in dangerous duration. The wearer of the Smart Watch has full control and freedom over turning on and off the driving mode of his Smart Watch.

The drive mode may also be used in other situations where notifications by the smart watch interfere, e.g. Theater, concert, be turned on by the wearer of the smart watch.

The drive mode status indicator (drive mode on) allows the Smart Watch wearer to prove during traffic checks that they have used their Smart Watch in a way that does not endanger traffic safety.

In the following, an embodiment of switch variant A, a mechanical switch according to 1 , described:
The user of the "Smart Watch" wearable communication device drives to work in the morning. During the morning before leaving for the office, he uses the full functionality of his Smart Watch. When it's time to drive to the office, he gets into his car and turns on the driving mode of his Smart Watch by pressing and holding the drive mode switch at the top of his smart watch's side, see 1 , Switch variant A.

Then he puts on his seat belt, starts the engine and drives off. The driving mode of the Smart Watch is a "simple driving mode". That is, the Smart Watch only shows the user the functionality of a normal, traditional watch. As a result, the Smart Watch does not distract the user from the traffic, as would be the case for example with more complex notifications and entries.

When the user arrives at the company car park, he turns off the engine of his car. After that, it switches off the driving mode of its Smart Watch by pressing the Driving Mode switch at the top of the side of its Smart Watch (see , Switch variant A). His Smart Watch now offers it its full functionality again.

The following is another embodiment that describes a multi-stage driving mode (see 3 ):
The user drives to work in the morning by car. Its Smart Watch supports a multi-level driving mode with the arrangement of driving modes like in 3 shown. Since he has today to a meeting in a district in which he does not know well, he would like to use the navigation app of his smart watch and receive notifications for turning off while driving. When the user gets into his car, the driving mode is displayed on his smart watch.

By pressing the mechanical travel mode switch on his smart watch three times, see 1 , Switch variant A, his smart watch is set in the notification drive mode. So the user can get not only the normal clock functionality but also the notifications of his smart watch navigation app while driving, and thus gets to his destination without getting lost. There, after switching off the engine of his car, he switches the (notification) driving mode of his Smart Watch by pressing the mechanical driving mode switch once for a correspondingly long time (see , Switch variant A) off again. His Smart Watch now offers it its full functionality again.

A further embodiment with an automatic activation of the driving mode is described below:
The user wears his smart watch on his left wrist and enters his car in Oxford in the garage (right-hand drive, turn signal on the left), fastens himself and starts the engine. His smart watch recognizes from its IME data the engine of a car and when driving out of the garage and the acceleration pattern of a moving car. BM_A is given.

The Smart Watch uses the following configuration of n = 5 to determine BM_F, where a combination of BM_L, BM_B, and BM_G contributes to a measurement-derived detection value, n, and a duration of td = 30s over which acquisition occurs. n and td are combined so that the driving mode of the smart watch is turned on when within 30 s characteristic acceleration patterns of a driver have been found and / or 5 characteristic acceleration patterns of a driver were detected.

At time t = 0, the user's smart watch is not in drive mode. n is set to 0, during the past 30 s (td) no driver's characteristic acceleration patterns have been observed by the smartwatch.

At time t = 1s, the user turns on his car.

At time t = 4s, the following situation occurs: In the last 30 s (td), the smart watch has not observed any characteristic acceleration patterns of a driver from the IME data and n = 0 <5. Thus, the driving mode of the smart watch remains switched off.

At time t = 5s, the user switches to reverse. His smart watch recognizes switching from its IME data, which contributes to BM_G. n increases to 1.

At time t = 9s the user drives backwards out of his garage and steers his vehicle onto the street. His smart watch recognizes steering from its IME data, which contributes to BM_L. n increases to 2.

At time t = 10s, the user switches to forward gear. His smart watch recognizes switching from its IME data, which contributes to BM_G. n increases to 3.

At time t = 18s, the user drives on his residential street to the main street. In the residential street three cars are parked on his side, around which he drives around. His smart watch recognizes steering from its IME data, once to the right, then to the left, which contributes to BM_G. n increases to 5. n has reached the limit and the smart watch switches to drive mode.

At time t = 25s the user turns his turn signal to the left, stops at the intersection with the main road and turns left onto the main road as soon as it is clear. His smart watch recognizes from its IME data the actuation of the turn signal that contributes to BM_B and the steering that contributes to BM_L. n increases to 7. The driving mode of the Smart Watch is already switched on.

At time t = 34s, the detection period td = 30s has elapsed. The Smart Watch has observed several characteristic driver acceleration patterns from the IME data that contributed to BM_L, BM_B, and BM_G.

If the driving mode of the Smart Watch had not already been switched on because of n> 5, it would now be switched on.

Although the invention has been described in connection with specific preferred embodiments, particularly with respect to a smart watch, it will be apparent to those skilled in the art that combinations or modifications thereof, whether in whole or in part, are possible for all embodiments. In particular, they are also applicable and transferable to other wearable communication devices, with specific patterns of movement adapted to the particular body part on which the communication device is worn.

Claims (16)

 Portable communication device (CD) with At least one input interface (S, TS) for data input by a user of the communication device (CD), At least one output interface (TS) for data output for presentation to the user, At least one sensor for detecting at least one measured value on or in relation to the body to which the communication device (CD) is attached, the communication device (CD) Has a variable input functionality range and / or a variable output functionality range, - And at least one arithmetic unit, which is designed such that A probability is derived from the measured value that the user to whose body the communication device is attached is driving a vehicle, and - At least input functionality scope or output functionality scope depending on the determined probability is changed. Communication device (CD) according to claim 1, which is designed as at least one of the following devices: - Wristwatch - glasses - Upper arm cuff. Communication device (CD) according to claim 1 or 2, wherein the changing of the input functionality scope or the output functionality scope via at least one mechanical switch (S) and / or at least one softkey is performed or is performed automatically in dependence on the at least one measured value , Communication device (CD) according to one of the preceding claims, wherein the at least one sensor - at least one inertial measuring unit, in particular a gyroscope, an acceleration sensor and / or a compass, and / or - a satellite-based localization system, in particular a GPS system, and / or A sensor which detects a connection with a data interface, in particular a Bluetooth interface assigned to a vehicle, and / or a microphone for detecting ambient noise and / or - A camera for detecting the environment or / and - a sensor for measuring at least one health functions, in particular a frequency of the wink and / or the blood pressure, the pulse beat comprises. Communication device (CD) according to one of the preceding claims with an interface to a memory unit in which comparative measured values, in particular threshold values, are stored, which indicate the guidance of a motor vehicle, and the arithmetic unit makes a comparison of measured values with the comparison measured values and depending on the comparison result changed at least one scope of functionality. Communication device (CD) according to claim 5, wherein the comparison measured values relate to a movement of the vehicle, in particular its acceleration and / or speed, and / or an operating state of the vehicle, in particular the presence of engine noise or vibration. Communication device (CD) according to one of the preceding claims, in which the measured values allow a distinction between the driver and passengers. Communication device (CD) according to claim 7, which is designed as portable on the arm communication device (CD) and is detected in the distinction of the driver to co-drivers on which arm the communication device (CD) is worn and then a comparison of measurement data with comparison data which describes movements typical of driving a vehicle, in particular the movement of a steering wheel, the operation of a turn signal and / or the actuation of a gearshift. Communication device (CD) according to one of the preceding claims, wherein a plurality of measurement data of at least one sensor or a combination of sensors is detected and the arithmetic unit is configured such that a change in a functional scope after the detection of a certain number of temporally successive measurement data takes place and / or after a certain time interval. Communication device (CD) according to one of the preceding claims, wherein the input and / or output functionality scope are changeable in a plurality of stages wherein a stage is selected in dependence on the at least one measured value. Communication device (CD) according to one of the preceding claims, wherein a measured value is assigned a confidence value, which depends on the age of the measured value and / or a number of existing measured data and / or the type of the sensor. Communication device (CD) according to one of the preceding claims, in which a hysteresis behavior for changing the input and / or output functionality is provided. A method of modifying a step-variable input or output functionality scope of a wearable communication device (CD), comprising the steps of: Detecting at least one measured value of at least one sensor; - Deriving a probability from the measured value, whether the user of the communication device (CD), on whose body the communication device is mounted, a vehicle leads; - Making a change in at least one extent of functionality at a given probability. System comprising at least one communication device (CD) according to one of claims 1 to 12, which has an interface for communication in a communication network and memory unit in the communication network for providing to the communication device (CD) communicable data, in particular comparison values, wherein in the system Method according to claim 13 executable. Computer program product directly loadable into a memory of a digital computer, in particular a portable communication device (CD), comprising program code parts adapted to perform the steps of the method according to claim 13. A storage medium for storing the computer program product according to claim 15.

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