Abstract: Device for measuring electrical conductivity of a liquid medium comprising constant voltage means, connected to a first electrode arrangement for injecting an alternating signal into the liquid medium, detection means, connected to a second electrode arrangement coupled via the liquid medium, for generating a measurement signal influenced by the electrical conductivity with a clock frequency (CLK) of the alternating signal, and evaluation means which from a current-proportional injection signal of the current injected by the first electrode arrangement into the liquid medium and from the measurement signal generate a conductivity signal of the liquid medium. The constant voltage means are made in an individual circuit branch which has commutator means for the first electrode arrangement and ohmic resistance means in a series connection, the current-proportional injection signal being tapped as a voltage drop over the resistance means.

Abstract: The invention relates to an energy storage assembly, comprising a plurality of cells connected in series, wherein the series connection of cells is connected to a power output of the energy storage assembly and a control unit, wherein at least a part of the cells connected in series is connected to the power output and the control unit by way of potential-free controlled converter and control units connected in parallel, such that during the charging, discharging and recharging processes each of the cells is operated according to the individual performance characteristics of said cell by means of selective current drains by the converter and control units and a total current flowing at the power output of the energy storage assembly is formed by a base current flowing through the series connection of the cells and by additional currents, which are drained from the individual cells depending on the capacity of the cells.

Abstract: Disclosed are a method and a traffic routing system for controlling traffic flows in which hazardous or special material is transported through safety-critical traffic zones such as tunnels, bridges or locks. In the method and traffic routing system, safety-relevant data is read with the help of a signal transmitter disposed on the transported hazardous or special material and is transmitted to a central computer unit when said vehicle passes reading devices located in the safety-critical traffic zone. The central computer unit determines a safety risk in the safety-critical traffic zone on the basis of the safety-relevant data of all transported hazardous or special material located in the safety-critical traffic zone and sets traffic routing signals.

Abstract: A method for recognizing the removal of a tire provided with a tire sensor device, includes recognizing, with the tire sensor device, if a respective tire is mounted on the motor vehicle and storing an item of information relating to a mounting status in the tire sensor device. If a removal is determined, the tire sensor device sends an item of information characterizing the removal to a central control unit and the central control unit outputs a warning. A tire sensor device, a central control unit and a system for anti-theft protection through tire removal recognition, are also provided.

Abstract: A device and a method for distinguishing positions of two tire sensors of a double tire include an LF antenna attached to a vehicle and connected to a central processing unit and one tire sensor each per tire. The tire sensors have a device for measuring field strength of a signal emitted by the LF antenna and the tire sensors report back information on the measured field strength through the LF antenna to the central processing unit. The central processing unit determines the position of the two tire sensors of the double tire from a distribution or course of a current flow during wheel rotation.

Abstract: The invention relates to an electronic device (1) that is to be incorporated into a motor vehicle. Said device (1) comprises a radio module (18) for establishing a short-distance wireless connection to an authorized cellular telephone (2) which is identified based on an identification key for the authorized cellular telephone (2) stored in a memory element (28) of the electronic device (1). In order to make it easier to retrieve the electronic device after the same has been stolen, the electronic device (1) further comprises means for detecting dismounting of the electronic device (1) from a motor vehicle as well as means for automatically establishing a short-distance wireless connection to another cellular telephone and automatically initializing a mobile wireless connection to said other cellular telephone when an identification key for the other cellular telephone is to be or is stored for the first time in the memory element (28) after restarting the electronic device once dismounting has been detected.

Abstract: A mobile telecommunications terminal comprising RFID functions, in addition to an associated method are provided. In one aspect, the terminal comprises a telecommunications interface, a user interface and a data processing unit. A modification made with the aid of an RFID transponder circuit to be controlled via of RFID data records that are stored in an RFID memory unit in such a way that a flexible RFID transponder emulation is achieved at minimal cost.

Abstract: The invention relates to an energy storage assembly, comprising a plurality of cells connected in series, wherein the series connection of cells is connected to a power output of the energy storage assembly and a control unit, wherein at least a part of the cells connected in series is connected to the power output and the control unit by way of potential-free controlled converter and control units connected in parallel, such that during the charging, discharging and recharging processes each of the cells is operated according to the individual performance characteristics of said cell by means of selective current drains by the converter and control units and a total current flowing at the power output of the energy storage assembly is formed by a base current flowing through the series connection of the cells and by additional currents, which are drained from the individual cells depending on the capacity of the cells.

Abstract: The present embodiments relate to checking a validity of a time-limited status of a device. In one embodiment, a checking unit includes an RFID reader and a control unit. The control unit is embodied for performing a validity check that relates to a time period and is based on time information read by the RFID reader from an RFID label and conveyed to the control unit.

Abstract: A method for assigning a position of a tire, having a tire sensor, on a vehicle, includes transmitting, with the sensor, a signal including at least an identification number of the sensor following activation by a signal from an LF antenna connected to an evaluation unit. At a system start time, the evaluation unit first initiates an initialization including determination of the position of each tire having a sensor. The evaluation unit stores the identification number of each sensor together with the determined position of the tire having the sensor, before switching into a normal operating mode in which tire data, for example air pressure, is monitored by the sensors, with the position and preferably assignment of the sensor to a specific LF antenna, being stored in the sensor and kept available for retrieval. A device and a system for measuring air pressure in a vehicle tire are also provided.

Abstract: The invention relates to a remote control for issuing commands to a remote-controlled device in a wireless manner. In said remote control, an assignment mode can run prior to start-up. The remote control also comprises a rechargeable battery for supplying power. The remote-controlled device is equipped with a docking point for the remote control, to which the latter can be temporarily fixed.

Abstract: Disclosed are a method and a traffic routing system for controlling traffic flows in which hazardous or special material is transported through safety-critical traffic zones such as tunnels, bridges or locks. In the method and traffic routing system, safety-relevant data is read with the help of a signal transmitter disposed on the transported hazardous or special material and is transmitted to a central computer unit when said vehicle passes reading devices located in the safety-critical traffic zone. The central computer unit determines a safety risk in the safety-critical traffic zone on the basis of the safety-relevant data of all transported hazardous or special material located in the safety-critical traffic zone and sets traffic routing signals.

Abstract: There is described a procedure for temporally limiting the storage of data on storage media, in which the data are provided with an expiry date when being stored on a storage medium. When access is made to these data by a read/write device, the expiry date is compared with a current date. When the expiry date is reached or exceeded, a pre-specified action is initiated—for example the deletion of the data from the storage medium or access being made to the data only by authorization. Based upon the procedure it is possible, on the one hand, to easily render sensitive information such as personal data unusable upon expiration of a storage period, if for example the expiry date is set to coincide with the date when the storage period elapses. On the other hand, copyright and marketing rights for digital data can thereby be easily protected without the additional use of licensing servers of the installation of executable programs.

Abstract: A method for assigning a position of a tire, having a tire sensor, on a vehicle, includes transmitting, with the sensor, a signal including at least an identification number of the sensor following activation by a signal from an LF antenna connected to an evaluation unit. At a system start time, the evaluation unit first initiates an initialization including determination of the position of each tire having a sensor. The evaluation unit stores the identification number of each sensor together with the determined position of the tire having the sensor, before switching into a normal operating mode in which tire data, for example air pressure, is monitored by the sensors, with the position and preferably assignment of the sensor to a specific LF antenna, being stored in the sensor and kept available for retrieval. A device and a system for measuring air pressure in a vehicle tire are also provided.

Abstract: A device and a method for distinguishing positions of two tire sensors of a double tire include an LF antenna attached to a vehicle and connected to a central processing unit and one tire sensor each per tire. The tire sensors have a device for measuring field strength of a signal emitted by the LF antenna and the tire sensors report back information on the measured field strength through the LF antenna to the central processing unit. The central processing unit determines the position of the two tire sensors of the double tire from a distribution or course of a current flow during wheel rotation.

Abstract: A method for recognizing the removal of a tire provided with a tire sensor device, includes recognizing, with the tire sensor device, if a respective tire is mounted on the motor vehicle and storing an item of information relating to a mounting status in the tire sensor device. If a removal is determined, the tire sensor device sends an item of information characterizing the removal to a central control unit and the central control unit outputs a warning. A tire sensor device, a central control unit and a system for anti-theft protection through tire removal recognition, are also provided.

Abstract: A method and device for assigning a vehicle wheel to axles having different wheel sizes. The method includes measuring the acceleration “a” sensed by an acceleration sensor of a wheel electronic system in a wheel. The measured acceleration value is transmitted to an evaluation unit, which compares the measured acceleration value “a” with a standard value stored in a memory for a standard wheel. The evaluation unit assigns the vehicle wheel to an axle as a function of the comparison result. The method and device are particularly suited to determining lift axles for trucks.

Abstract: The invention relates to an electronic device (1) that is to be incorporated into a motor vehicle. Said device (1) comprises a radio module (18) for establishing a short-distance wireless connection to an authorized cellular telephone (2) which is identified based on an identification key for the authorized cellular telephone (2) stored in a memory element (28) of the electronic device (1). In order to make it easier to retrieve the electronic device after the same has been stolen, the electronic device (1) further comprises means for detecting dismounting of the electronic device (1) from a motor vehicle as well as means for automatically establishing a short-distance wireless connection to another cellular telephone and automatically initializing a mobile wireless connection to said other cellular telephone when an identification key for the other cellular telephone is to be or is stored for the first time in the memory element (28) after restarting the electronic device once dismounting has been detected.

Abstract: There is described a system for controlling electrical consumers of an electrical installation, comprising in addition to the consumers control and operating elements. The system has means for near field communication, by which data and control commands are transmitted, are assigned to the consumers and the actuation and control elements. The near field communication systems are coupled asymmetrically to electrically conducting infrastructure elements in such a manner that quasi-stationary near field with a high-frequency alternative current is impressed upon the infrastructure.

Abstract: A mobile telecommunications terminal comprising RFID functions, in addition to an associated method are provided. In one aspect, the terminal comprises a telecommunications interface, a user interface and a data processing unit. A modification made with the aid of an RFID transponder circuit to be controlled via of RFID data records that are stored in an RFID memory unit in such a way that a flexible RFID transponder emulation is achieved at minimal cost.