MOBILE DEFENSE SYSTEM WITH A MOBILE SIGNAL UNIT AND A MOBILE CONTROL UNIT

Description

[0001] The invention relates to a mobile defense system for warding off physical attacks, comprising a mobile signaling unit for carrying in or on an object close to the body, which comprises a siren by means of which an acoustic defense signal can be generated, and a mobile operating unit for activating the mobile signaling unit.

[0002] DE 20 2004 006 170 U1 discloses a device for self-defense against external attacks, in which a weapon is mounted in a retrieval device. When the object is removed, a contact located between the weapon and the retrieval device activates a siren. Since the retrieval device is typically located in closed containers such as bags, considerable time can pass before the weapon can be removed from the retrieval device and the alarm can finally be activated.

[0003] DE 10 2013 014 849 A1 discloses a system and method for preventing loss, locating, and tracking personal belongings using wireless hardware and mobile electronic devices, such as smartphones, tablet computers, and wearable computers. The system comprises a mobile communication device with a processor, an antenna, a transmitting and receiving unit electrically connected to the antenna and the processor, and a computer-readable medium connected to the processor and containing a processor-readable code for executing a method.The method includes receiving a wireless communication from a wireless device attached to an object, determining a signal strength reading from the communication, and determining whether the signal strength reading is below an adaptable alarm limit, and may, if the signal strength reading is below the alarm limit, alert the user.

[0004] US Pat. No. 6,133,830 A discloses a motion-sensitive theft detection system for wearable articles. This system enables two-way communication between the theft detection unit installed in or attached to the wearable article and the control unit carried by the wearer. The theft detector transmits warning messages to the control unit, allowing the user to check for false alarms and, if necessary, trigger an alarm on the wearable article. A time-based alarm suppression algorithm allows the system to be worn in its armed state without frequently repeating alarms on the control unit. A second alarm function, selected by the mode switch, automatically triggers an alarm in response to movement according to an adaptive alarm sequence.The adaptive alarm varies the alarm in response to the frequency and duration of movement, so that isolated movement triggers a warning, but sustained movement triggers a full alarm.

[0005] From WO 03 / 033842 A2 an electronic device is known which is integrated into a piece of personal luggage and is equipped with an electronic alarm siren (alarm), a motion-sensitive electronic trigger, a standalone wireless remote control, a numeric keypad which enables numeric sequential security input as well as arming and disarming of the motion sensor and the alarm siren (alarm).

[0006] DE 10 2013 014 849 A1 discloses a mobile communications device. This device comprises a processor and a transmitting and receiving device. The device is electrically connected to the processor and an antenna. Also part of the disclosure is a computer-readable medium. This medium is connected to the processor. It executes code that implements a method. This method involves receiving wireless communication. This communication comes from a remote station attached to an object. Furthermore, a signal strength reading is part of the method. This determines whether the signal strength reading is below an alarm threshold. If it is below this threshold, a user is alerted.

[0007] US 6,133,830 A discloses a motion-sensitive theft detection system for wearable articles. It provides two-way communication between the theft detector and the control unit. The control unit is worn by the wearer or attached to the wearable article. The system communicates alerts to the control unit. This allows the user to review false alarms and trigger an alarm if necessary. A time-based alert suppression algorithm prevents repeated alarms. A second alarm function automatically triggers an alarm upon motion. This occurs according to an adaptive alarm sequence. The adaptive alarm sequence adapts the alarm to the frequency and duration of the motion. This triggers a warning for isolated motion and a full alarm for sustained motion.

[0008] WO 03 / 033842 A2 discloses a portable luggage unit with electronic security. This allows the entry of a sequential security number to activate or deactivate a motion-sensitive trigger and an alarm siren. The unit can be left unattended and emits an audible signal when moved from its stationary position. WO 03 / 033842 A2 also discloses that the security luggage unit is equipped with a separate, self-contained, wireless remote control. This remotely activates the unit's alarm siren when it is deactivated. This makes it easier to locate the unit if it is removed by force or deception, thus deterring theft.

[0009] The problem underlying the invention is solved by the features of independent claim 1. Further advantageous embodiments emerge from the subclaims and the drawings.

[0010] A mobile defense system is proposed, comprising a mobile signaling unit for carrying in or on a body-worn object, with at least one siren. The body-worn object is, in particular, an item of clothing or a carrying container. Preferably, the body-worn object is a wallet, handbag, travel bag, and / or backpack. An acoustic defense signal can be generated by means of the siren. The siren is preferably gas-powered or electrically powered. The signaling unit comprises a wireless first interface, via which the siren can be remotely activated and deactivated from a dedicated control unit. The signaling unit is designed such that the siren can be manually activated with an activation command if the activation command matches an activation code stored in a memory unit of the signaling unit and / or the dedicated control unit. The activation command is coded.The activation command is a gesture and / or a voice command. In the case of a physical attack, for example, the activation command can be a defensive posture or gesture that activates the siren. Furthermore, the coded deactivation advantageously prevents the attacker from deactivating the defensive signal.

[0011] Additionally, it is advantageous if the signaling unit is designed such that the siren can be automatically activated after the wireless connection to the control unit if the signal strength of the control unit falls below a threshold and / or the wireless connection to the control unit is interrupted. This ensures, for example, in the event of a handbag theft, that the siren is automatically activated if the mobile signaling unit, or in particular the handbag, moves too far away from the mobile control unit or the owner.

[0012] It is advantageous if the signal unit comprises a pressure vessel which is connected to the gas-operated siren via a valve.

[0013] The mobile signaling unit is preferably designed to be so compact that it can be placed in or on the object without causing any interference. This enables women and children in particular to carry the mobile signaling unit close to their body at all times. In an emergency, for example in the event of a theft or assault, the victim can remotely activate the siren via the wireless first interface using a dedicated control unit. The control unit is mobile and preferably designed to be handy so that it can be activated quickly in the event of an attack. Once the siren has been activated to generate the acoustic defense signal, it is preferably difficult to deactivate, particularly via a coded deactivation command, or impossible to deactivate at all. If, for example, the mobile signaling unit is sewn into a handbag and it is stolen, the owner of the handbag can quickly and easily activate the siren via the wireless first interface.This is done manually via an activation command. The control unit required for activation is preferably worn directly on the body. It is also conceivable to activate the siren in the event of a physical attack in order to scare the attacker with the defensive signal and, ideally, scare them away. The defensive signal could, for example, be issued in the form of words. The acoustic defensive signal lies above the human pain perception threshold. The sound pressure of the defensive signal is preferably greater than 60 dB. The sound pressure of the defensive signal is preferably greater than 100 dB. The wireless first interface allows remote activation of the siren in order to respond as quickly as possible to attacks and thus signal a call for help.

[0014] It is advantageous if the first interface is a radio interface and / or an infrared interface. The radio interface is preferably designed to receive and / or transmit radio waves, such as a Bluetooth signal, for example. The infrared interface is preferably designed as a receiver and / or transmitter of infrared radiation. The first interface is preferably designed such that its ability to receive information is fully functional, even if the first interface is arranged in a pocket, for example. The first interface makes it possible to activate the signals even if the signal unit is not directly accessible. Alternatively or additionally, it is advantageous if the first interface is designed to be unidirectional or bidirectional. The first interface is designed to be unidirectional, so that only signals can be received via it.The first interface is bidirectional, allowing both receiving and transmitting signals. Unidirectional means that signals can preferably only be received or transmitted. Bidirectional means that signals can preferably be received and transmitted. With a bidirectional first interface, it is advantageous if the signal unit can send at least one status message. Communication between the mobile signal unit and a device triggering the signal can thus be implemented independently of location.

[0015] The signal unit has a locking system. Using the locking system, the siren can only be deactivated after activation with a deactivation command entered directly into the signal unit, provided this deactivation command matches a deactivation code stored in the memory unit of the signal unit and / or the dedicated control unit. Alternatively, the locking system can be deactivated with a deactivation command transmitted indirectly by the dedicated control unit. The locking system is preferably designed such that the siren can only be deactivated if the deactivation code is known. The deactivation code should preferably be defined before the mobile signal unit is used for the first time. The deactivation code is preferably stored in the mobile signal unit itself or in the dedicated control unit.The deactivation code can, for example, be a numeric code that must be entered on the control unit. Alternatively or additionally, it can be a gesture, especially a hand gesture, and / or a voice command. The locking system ensures that the criminal cannot deactivate the signal.

[0016] The signal unit comprises a first control unit with which the activation command can be compared with the stored activation code, the deactivation command can be compared with the stored deactivation code, the wireless connection to the control unit can be monitored and / or the siren can be controlled for activation and / or deactivation.

[0017] The locking system thus advantageously comprises a first control unit, by means of which the first interface can be locked and / or unlocked after the siren has been activated. The first control unit is preferably designed to detect contact with the first interface. Contact with the first interface preferably means that the siren is triggered and the defense signal is generated. Furthermore, the first control unit is preferably designed to lock the first interface. The deactivation code, which is used to check the correctness of the entered deactivation command, is preferably stored in the first control unit. The first interface is preferably only released by the first control unit once the correct deactivation command has been registered. In this way, it can be ensured that the defense signal cannot be deactivated by the attacker.

[0018] It is advantageous if the signaling unit has an actuating element by means of which the deactivation command for deactivating the siren can be entered. The actuating element is preferably designed such that the siren is triggered electrically and / or electromechanically. The actuating element is preferably a push button. The actuating element is preferably arranged in an easily accessible location. For example, the mobile signaling unit can have one or more push buttons by means of which the siren can be triggered manually. Alternatively, the actuating element is preferably a push cap, which must be pushed down to trigger the alarm signal. The mobile signaling unit is, for example, an acoustic alarm device. The actuating element is preferably attached to a ring, bracelet, belt and / or in a jacket pocket or the like, so that the siren can be easily activated.If the siren is activated by mistake, it can be quickly deactivated using the deactivation command, provided this matches the stored deactivation code. For example, the manual deactivation command can be pressing the actuator repeatedly, particularly in a specific time sequence.

[0019] It is advantageous if the signal unit has a protective housing. The siren, the first control unit, a power storage unit, and / or the first interface are housed in the protective housing, protected from external forces. The protective housing is made, in particular, of metal and / or a fiber composite material. The signal is preferably generated by a gas under high pressure, as in a signal horn, so that no additional power storage unit is necessary. Alternatively, the signal unit can comprise a power storage unit, in particular a battery.

[0020] Furthermore, it is advantageous if the signaling unit has a fastening means so that it can be attached to the object close to the body. To ensure that the signaling unit can be used depending on clothing, accessories, and the season, the fastening means is preferably a strap, Velcro fastener, and / or snap fastener. The signaling unit is preferably sewn into a fabric or a pocket.

[0021] It is also advantageous if the signaling unit comprises a lighting element, in particular a lamp, by means of which an optical signal can be generated. The optical signal is preferably emitted in the form of a flashing light. The signaling unit is preferably arranged in a visible location so that the flashing light can be clearly seen when it is generated. The acoustic and optical signals are preferably generated simultaneously so that, in addition to the loud defensive signal, a light is also generated. The lighting element can preferably be activated via the control unit. The activation and / or deactivation of the lighting element preferably takes place in a similar way to the activation and / or deactivation of the siren of the signaling unit. In addition to acoustic location, it is thus also possible to quickly identify the location of the robbery at night. In woods or dark alleys, this can quickly attract attention.The signal unit may also include the light element. However, the signal unit may also include only the siren to generate the alarm signal.

[0022] What is proposed is a mobile defense system with a mobile control unit for activating a mobile signaling unit. The signaling unit is preferably designed according to one or more of the preceding and / or subsequent features of the description. The mobile control unit is preferably an accessory, a bracelet, a necklace, a ring, a cordless telecommunications unit, and / or a wristwatch. The mobile control unit has an input unit for entering an activation command and a wireless second interface. The input unit is preferably haptic and / or acoustic. The second interface is designed to connect to a first interface of the mobile signaling unit provided for this purpose. The control unit is designed such that a siren of the signaling unit can be remotely activated and / or deactivated by means of it.The control unit has a memory unit in which an activation code is stored. Furthermore, the control unit has a second control unit that compares the entered activation command with the stored activation code and, if they match, activates the siren.

[0023] It is advantageous if the operating unit comprises a first device, in particular an accessory, a bracelet, a necklace, a ring, a wireless telecommunications unit and / or a mobile watch, in particular a wristwatch, and a second device, in particular a wireless telecommunications unit, preferably a mobile phone, which are preferably connectable and / or connected to one another wirelessly. Preferably, the first device comprises the input unit. Additionally or alternatively, the second device comprises the wireless second interface, the second control unit and / or the storage unit.

[0024] The operating unit preferably has a push button that is connected to the second interface. Alternatively, the operating unit is preferably a telecommunications unit, in particular a cordless one, preferably a mobile phone, which allows both haptic and acoustic operation. The activation command is preferably given by pressing, swiping, fingerprinting, or a predetermined acoustic sound. Entering the activation command causes a signal to be output from the second interface. The second interface is designed such that it can communicate with the first interface of the signaling unit. Through communication between the operating unit and the signaling unit via the two interfaces, the signaling unit can be controlled such that the siren generates an alarm signal. Communication between the two interfaces is wireless.

[0025] This allows the control unit to be carried in the hand, for example, while the signaling unit is securely stored in a jacket pocket. Should the wearer encounter a dangerous situation, they simply need to give the haptic or acoustic activation command. Upon activation, the second interface of the control unit is triggered to transmit a signal. The first interface of the signaling unit receives this signal, whereupon the siren is activated and an alarm signal is generated.

[0026] According to the invention, a deactivation code is stored in the memory unit.

[0027] It is also provided that the second control unit is designed in such a way that the signal unit provided for this purpose can be deactivated by the mobile control unit after the activation of its siren using a deactivation command to be entered via the input unit, wherein the second control unit compares the entered deactivation command with the stored deactivation code and deactivates the signal unit if there is a match.

[0028] The input unit comprises a gesture recognition unit and / or speech recognition unit for inputting the activation command.

[0029] The input unit has a sensor for gesture recognition and / or speech recognition, in particular a camera, a position sensor and / or an acceleration sensor.

[0030] It is advantageous if the second control unit is designed in such a way that it automatically makes an emergency call via a, in particular cordless or wireless, telecommunications unit of the operating unit, in particular of the second device, when the signal unit is activated.

[0031] It is provided that the operating unit has a second control unit electrically connected to the input unit and the second interface. A control program is stored in the second control unit. The control program is preferably designed such that the second interface emits a signal, in particular an infrared or radio signal, when the activation command is entered at the operating unit. The second interface generates the signal for connection to the first interface. The signal preferably contains the information that the defense signal is to be output. Alternatively, the signal contains the information that the defense signal is to be terminated. The control unit is individually programmable so that various parameters such as the volume of the defense signal, the time delay or even the melody of the defense signal can be set.

[0032] It is also provided that the control program is designed such that the designated signal unit can be deactivated after activation using a deactivation code entered via the input unit. After the signal to activate the signal unit has been issued by the operating unit, in particular the second interface, the operating unit is preferably automatically locked by the control program. This locking preferably makes it impossible to deactivate the defense signal without a deactivation code. The deactivation code can be a number combination, a password, or even a fingerprint that is detected by a sensor provided for this purpose. This is intended to prevent the defense signal from being simply deactivated without major effort.

[0033] The control program is advantageously designed in such a way that it automatically makes an emergency call via a, in particular wireless, telecommunications unit of the operating unit when the signaling unit is activated. When the activation command has been given on the operating unit, an emergency call is preferably made in parallel with the connection of the two interfaces. Alternatively, it is conceivable that a message is automatically sent via the, in particular wireless, telecommunications unit. The control unit preferably stores information about which people or emergency call centers should be contacted if the signaling unit is activated. It is also possible for the operating unit itself not to have a telecommunications unit but to be connectable to one. The operating unit preferably sends a signal instructing the separate telecommunications unit to make an emergency call.If the attacker is not deterred by the alarm signal and the victim remains in danger, help can be called promptly.

[0034] Thus, a mobile defense system for warding off physical attacks is proposed, comprising a mobile signaling unit for carrying in or on an object close to the body and a mobile control unit for activating the mobile signaling unit. The mobile signaling unit comprises a siren, by means of which an acoustic defense signal can be generated that exceeds the human pain threshold. The mobile signaling unit and the mobile control unit are designed according to one or more of the preceding and / or subsequent features of the description.

[0035] The mobile signaling unit is preferably placed in a jacket pocket or handbag whenever you leave the house. The mobile signaling unit can be automatically ready to receive signals or can be switched on manually. In the event of a physical attack, the victim simply needs to briefly press the operating unit, which establishes a connection between the two interfaces of the operating unit and the signaling unit. Upon receiving a signal via the second interface, the signaling unit's control unit causes the siren to emit an alarm signal. The alarm signal is so loud that the attacker is scared away or at least refrains from further attacks due to the attention it attracts.

[0036] It is advantageous if the mobile signal unit and the mobile control unit are physically separated. This ensures that, for example, if a handbag is stolen, the alarm signal is still triggered by the signal unit inside. Since the thief cannot deactivate the alarm signal without a deactivation code, they will throw the bag aside to avoid attracting attention. This allows the victim to search for the bag in a small area.

[0037] It is advantageous to design the two interfaces in such a way that they communicate with each other at time intervals. For example, each interface could send signals at specific time intervals, which are then received by the other interface. If no signals can be received, for example because the two interfaces are too far apart, the alarm signal is preferably triggered automatically. It can be useful to inform the wearer at intervals about the status of both interfaces so that the alarm is not triggered due to a low battery or the like. If the two interfaces, and thus the signal and control units, move away from each other by a specified distance, for example, the alarm signal can be triggered automatically. In this case, it is preferably not necessary to issue an additional command via the control element or the actuation element.

[0038] It is also advantageous if the signaling unit is sewn into a piece of clothing or a carrying case. This prevents a thief or attacker from simply removing the signaling unit from the carrying case and discarding it.

[0039] Further advantages of the invention are described in the following exemplary embodiments. It shows: Figure 1 schematic view of a mobile defense system.

[0040] The Figure 1shows the functionality of a mobile defense system 1 in a schematic representation. The mobile defense system 1 is intended to ward off physical attacks. It is formed by a mobile signal unit 2 and a mobile operating unit 3. To illustrate the interaction of the mobile signal unit 2 and the mobile operating unit 3, these are shown together in the mobile defense system 1. In practice, it is intended that the signal unit 2 and the operating unit 3 are arranged physically separate from one another. The mobile signal unit 2 is designed such that, when used, it can be placed in an object close to the body, such as an item of clothing or a carrying container. Alternatively, it is conceivable to permanently integrate the mobile signal unit 2 into an object intended for this purpose, in particular to sew it in, so that the signal unit 2 is carried permanently.The mobile control unit 3 is, for example, an accessory which is preferably frequently used in everyday life, a bracelet, a necklace, a ring, a cordless telecommunications unit and / or a wristwatch.

[0041] The mobile signaling unit 2 has a siren 4. The siren 4 is designed to generate an acoustic defense signal that exceeds the human pain threshold. The pain threshold is approximately in the range above 100 dB and / or 20 Pa. The signaling unit 4 comprises a wireless first interface 5, via which the siren 4 can be remotely activated and / or deactivated. The siren 4 can preferably also be activated via an actuating element 6 of the mobile signaling unit 2. The actuating element 6 is designed such that the siren 4 can be manually activated.

[0042] The mobile signal unit 2 can be operated via the mobile control unit 3. For this purpose, the first interface 5 can be wirelessly connected to a second interface 7 of the mobile control unit 3. The two interfaces 5, 7 are preferably radio or infrared interfaces that correspond to one another. The first interface 5 is designed to receive and process a signal 8 from the second interface 7. The two interfaces 5, 7, and thus the control unit 3 and the signal unit 2, are wirelessly connected to one another by means of the signal 8.

[0043] The signal unit 2 is designed such that the siren 4 can be manually activated with an activation command if the activation command matches an activation code stored in a memory unit 20 of the signal unit 2. In an exemplary embodiment not shown here, the memory unit 20 can also be arranged in the control unit 3. In addition, the signal unit 2 can be designed such that the siren 4 can be automatically activated after the wireless connection to the control unit 3 if a connection signal strength of the control unit 3 falls below a threshold and / or the wireless connection to the control unit 3 is interrupted.

[0044] The first and second interfaces 5, 7 are designed to be unidirectional, so that only signals 8 can be received via them, or bidirectional, so that both signals 8 can be received and sent.

[0045] The signal unit 2 has a locking system 9 by means of which the siren 4, after its activation, can only be deactivated with a deactivation command 11 that can be entered directly into the signal unit 2 or indirectly transmitted by the control unit 3 provided for this purpose, if this deactivation command corresponds to a deactivation code stored in the memory unit 20 of the signal unit 2 and / or the control unit 3 provided for this purpose.

[0046] The signal unit 2 comprises a first control unit 10, with which the activation command can be compared with the activation code stored in the memory unit 20. Furthermore, the first control unit 10 is designed such that the deactivation command is comparable with the stored deactivation code, the wireless connection to the control unit 3 can be monitored, and / or the siren 4 can be controlled for activation and / or deactivation.

[0047] The mobile control unit 3 comprises an input unit 15 for entering the activation command and the wireless second interface 7 for connecting to the first interface 5 of the mobile signal unit 2, so that the siren 4 of the signal unit 2 can be remotely activated and / or deactivated using the control unit 3. In an embodiment not shown, the control unit 3 can have the memory unit 20 in which the activation code is stored. Furthermore, the mobile control unit 3 has a second control unit 16, which compares the activation command entered by the user with the activation code stored in the memory unit 20 and, if there is a match, activates the siren 4.

[0048] The control unit 3 can comprise multiple devices. For example, the control unit 3 can comprise a first device, in particular an accessory, a bracelet, a necklace, a ring, a cordless telecommunications unit, and / or a wristwatch, and a second device, in particular a preferably cordless telecommunications unit, which are preferably connectable and / or connected to one another wirelessly.

[0049] The first device preferably comprises the input unit 15. The second device preferably comprises the wireless second interface 7, the second control unit 16 and / or the storage unit 20, provided that this is not arranged in the signal unit 2 but in the operating unit 3.

[0050] A deactivation code is stored in the memory unit 20, which can be located in the signal unit and / or in the control unit 3. Furthermore, the second control unit 16 is designed such that, after its siren 4 has been activated, the signal unit 2 can be deactivated by the mobile control unit 3 using a deactivation command entered via the input unit 15. For this purpose, the second control unit 16 compares the entered deactivation command with the stored deactivation code and deactivates the siren 4 if they match.

[0051] The input unit 15 comprises a gesture recognition unit and / or speech recognition unit (not shown here) for inputting the activation command. For this purpose, the input unit 15 has a sensor for gesture recognition and / or speech recognition, in particular a camera, a position sensor, and / or an acceleration sensor.

[0052] The second control unit 16 is designed such that it automatically sends an emergency call via a, in particular wireless, telecommunication unit 18 of the operating unit 3, in particular of the second device not shown here, when the signal unit 2 is activated.

[0053] Regardless of whether the signal unit 2 was activated by the operating unit 3 or via the actuating element 6, the signal unit 2 is designed to be locked from further commands, in particular deactivation of the defense signal. After the signal unit 2 has been activated, the first control unit 10 causes the signal unit 2 to be locked by the locking system 9 so that the defense signal of the siren 4 cannot be switched off. By locking the signal unit 2, the siren 4 can only be deactivated if a defined deactivation code 11 is detected via the actuating element 6 or the operating unit 3. The deactivation code 11 can, for example, be a repeated pressing of the actuating element 6. Likewise, the deactivation code 6 can be entered on the operating unit 3 in the form of a sequence of numbers or letters.When the first control unit 10 detects that the correct deactivation code 11 has been entered, it is possible to switch off the siren 4.

[0054] To ensure that the signal unit 2 can be activated at any time, it has a power storage unit 12. The power storage unit 12 allows the signal unit 2 to be switched on and off as needed, particularly when the user is at home and out of danger. The signal unit 2 is housed in a protective housing 13. The protective housing 13 is designed such that the siren 4 cannot be deactivated without the deactivation code 11, even if force is applied. The signal unit 2 has fastening means 14 so that it can be easily attached to designated locations.

[0055] Preferably, the siren 4 is a gas- and / or electrically powered siren, wherein the actuating element 6 is a push button. When the actuating element is operated, in particular pressed, the gas generates the alarm signal. Alternatively, the siren 4 is activated by sending an activation command, in particular the signal 8, via the operating unit 3. If the siren 4 is operated with gas, no additional power storage unit 12 is necessary. The siren 4 is then triggered by a corresponding electromechanical design of the signal unit 2.

[0056] The operating unit 3 has an input unit 15. The input unit 15 has a second control unit 16. A control program 17 is stored in the second control unit 16. When the command to activate the defense signal is detected by the input unit 15, the second control unit 16 causes the second interface 7 to send the signal 8 to the first interface 5 to activate the siren 4. Parallel to or immediately thereafter, the operating unit 3 is locked by the control program 17. Locking the operating unit 3 prevents the defense signal from being deactivated without a hurdle. It is conceivable that the control program 17 causes the activation of the locking system 9 of the signal unit 2, thus preventing the deactivation of the defense signal at the signal unit 2 itself. This would allow the victim, for example in the case of a stolen handbag, to make an emergency call themselves using the operating unit 3.

[0057] To deactivate the siren 4, the deactivation code 11 must be entered into the input unit 15. The deactivation code 11 is compared with the data stored in the locking system 9 of the signal unit 2. Alternatively, the deactivation code 11 is entered directly into the signal unit 2. If the correct deactivation code 11 is detected in the second control unit 16, the second interface 7 sends another signal 8 to the first interface 5 to stop the generation of the alarm signal.

[0058] Additionally, it may be useful for the control unit 3 to include a telecommunications unit 18, particularly a wireless one. Telephone numbers can be stored in the control program 17, which are automatically contacted in the event of the defense signal being activated. Alternatively, the control unit 3 can be wirelessly connected to a telecommunications unit 18, particularly a wireless one. In an emergency, the control unit 3 sends an emergency signal, for example via the second interface 7, which is received by the telecommunications unit 18. The telecommunications unit 18 then automatically makes an emergency call.

[0059] The signal unit 2 can have a lighting element 19. The lighting element 19 is designed to generate an optical signal simultaneously with the acoustic warning signal of the siren 4. The optical signal is preferably a flashing light. The lighting element 19 can also be designed as a lamp, rotating mirror light, LED light, or flashing light.

[0060] In a preferred embodiment, it is thus conceivable that the mobile operating unit 3 is a first operating device, in particular an accessory, a bracelet, a necklace, a ring, a cordless telecommunications unit and / or a wristwatch. An activation code and / or a deactivation code were previously defined by the user and stored in the memory unit 20. This can be done, for example, by teaching a gesture, in particular a hand movement. Such a gesture, in particular a hand movement, can be recognized by the sensor system of the operating unit. The second control unit 16 can be integrated into the first operating device. Alternatively, it is also conceivable that the first operating device is connected to another device, for example a preferably cordless telecommunications unit. The preferably cordless telecommunications unit would thus be part of the mobile operating unit 3.The second control unit 16 would thus be integrated into the preferably cordless telecommunications unit. In the event of a physical assault, the user would, for example, make a defensive movement that represents the gesture-controlled activation command. The hand movement would be detected by the sensors of the first operating device, in particular the accessory, bracelet, necklace, ring, and / or wristwatch, and compared by the second control unit 16 with the activation code stored in the memory unit 20. If there is a match, the siren 4 of the mobile signaling unit 2 would be immediately activated. Alternatively, this comparison of the activation command and activation code could be performed by the first control unit 10 of the mobile signaling unit 2. Deactivation could occur in a similar manner. List of reference symbols

[0061] 1 Mobile defense system 2 Mobile signal unit 3 Mobile control unit 4 Siren 5 First interface 6 Actuator 7 Second interface 8 Signal 9 Locking system 10 First control unit 11 Deactivation code 12 Power storage 13 Protective housing 14 Fastening device 15 Input unit 16 Second control unit 17 Control program 18 Telecommunication unit 19 Light element 20 Storage unit

Claims

1. Mobile defense system for a user for defending against physical attacks by an attacker having a mobile signal unit (2) for being carried in or on an object and having a mobile operating unit (3) for activating and / or deactivating the mobile signal unit (2), wherein the mobile signal unit (2) has at least one siren (4), by means of which an acoustic defense signal lying above a human pain sensitivity threshold can be generated in order to scare and scare off the attacker by the defense signal, and a wireless first interface (5), via which the siren (4) can be activated in a remote-controlled manner by the mobile operating unit (3); wherein the mobile operating unit (3) has an input unit (15) for entering an activation command and for manually activating the siren (4) and a wireless second interface (7) for connecting to the first interface (5) of the mobile signal unit (2); wherein the signal unit (2) or the operating unit (3) has a memory unit (20); wherein the signal unit (2) has a first control unit (10) and the mobile operating unit (3) has a second control unit (16), wherein the first or the second control unit (10, 16) compares the activation command with an activation code stipulated by the user and stored in the memory unit (20) and activates the siren (4) in the event of coincidence; wherein the signal unit (2) has a locking system (9), by means of which the siren (4) can be deactivated after its activation only with a deactivation command (11) which can be entered directly into the signal unit (2) or can be deactivated indirectly by the deactivation command (11) transmitted by the operating unit (3) if this deactivation command coincides with a deactivation code stipulated by the user and stored in the memory unit (20), wherein the first or the second control unit (10, 16) compares the entered deactivation command with the stored deactivation code and deactivates the signal unit (2) in the event of coincidence, with the result that the defense signal cannot be switched off by the attacker, wherein the activation command is a gesture and / or a voice command and the input unit (15) has a gesture recognition unit with a sensor for gesture recognition and / or a voice recognition unit with a sensor for voice recognition for entering the activation command.

2. Mobile defense system according to the preceding claim, characterized in that the first interface (5) is of unidirectional design, with the result that only signals (8) can be received via it, or is of bidirectional design, with the result that both signals (8) can be received and transmitted.

3. Mobile defense system according to one of the preceding claims, characterized in that the signal unit (2) has at least one actuating element (6), by means of which the deactivation command (11) for deactivating the siren (4) can be entered.

4. Mobile defense system according to one of the preceding claims, characterized in that the signal unit (2) has a protective housing (13), in which the siren (4), the first control unit (10), a power storage unit (12) and / or the first interface (5) are accommodated in a manner protected against the effect of external force.

5. Mobile defense system according to one of the preceding claims, characterized in that the signal unit (2) has a lighting element (19), by means of which an optical signal can be generated.

6. Mobile defense system according to one of the preceding claims, characterized in that the operating unit (3) has a first device and a second device, wherein the first device has the input unit (15) and the second device has the wireless second interface (7), the second control unit (16) and / or the memory unit.

7. Mobile defense system according to one of the preceding claims, characterized in that the second control unit (16) is designed in such a way that it automatically emits an emergency call via a cordless telecommunication unit (18) of the operating unit (3) when the signal unit (2) is activated.