Abstract:
The invention relates to a sensor monitoring system comprising at least one sensor (101, 102, 103) and a processing unit (150), wherein the sensor is arranged to transmit during a plurality of successive time periods data items to the processing unit and the processing unit is arranged to receive the data items from the said at least one sensor, the processing unit being further arranged for: determining for at least some time periods from the said plurality of successive time periods a number of corresponding data items; comparing between the at least some time periods the number of the corresponding data items; deducing for the at least some time periods a parameter associated with a variation in the number of data items per said some time periods. The invention further relates to a processing unit, and a method and a computer program for sensor monitoring.
Abstract:
A method of estimating a number of people (1), of which at least some carry a mobile communication device (2), comprises the steps of: counting, at a first location (Ll), a first group of people so as to obtain a first number (NO), counting, at the first location (Ll), the number of enabled mobile communication devices (2) in the first group of people so as to obtain a second number (Nl), determining the ratio (R) of the first number (NO) and second number (Nl), counting, at a second location (L2), the number of enabled communication devices (2) so as to obtain a third number (N2), and using the ratio (R) to estimate the number of people at the second location (L2). The mobile communication devices (2) may be arranged for using the Bluetooth® protocol.
Abstract:
Signal data from a sensor is stored in a storage device. The signal data is accessed by means access request that includes an identification of a base signal that may indicate the signal data from said sensor and an identification of a derivation to obtain a requested signal from the base signal. An interface extracts the identifications of the base signal the derivation. The interface tests whether stored signal data obtained from the base signal by said derivation is available in the storage device, and if so it returns the stored signal data in response to the access request via the interface. If not signal data is derived from further stored signal data by at least one signal processing operation identified in the derivation.
Abstract:
A method of electronically providing tickets using a mobile telephone device (2) and an admission server (3) comprises the steps of: the admission server registering a mobile telephone number of a user, the admission server checking whether the user has obtained a ticket, the admission server, if the check is positive, calling the mobile telephone number, and the mobile communication device recording the calling line identification of the admission server, such that the calling line identification of the admission server may be used as an electronic ticket.
Abstract:
A method of estimating a number of people (1), of which at least some carry a mobile communication device (2), comprises the steps of: counting, at a first location (Ll), a first group of people so as to obtain a first number (NO), counting, at the first location (Ll), the number of enabled mobile communication devices (2) in the first group of people so as to obtain a second number (Nl), determining the ratio (R) of the first number (NO) and second number (Nl), counting, at a second location (L2), the number of enabled communication devices (2) so as to obtain a third number (N2), and using the ratio (R) to estimate the number of people at the second location (L2). The mobile communication devices (2) may be arranged for using the Bluetooth® protocol.
Abstract:
A processing device (1) comprises a processor (11), a memory (12) and a interface unit (13). The interface unit is arranged for reading data from a transponder (2). The memory (12) of the processing device contains an interpreter for converting program lines read from the transponder into machine code that is executable by the processor (11). The processing device (1) may be embedded in another device (3), such as a consumer device (3), so as to control the other device. The program lines may define a new function and/or a new setting of the processing device (1) or the other device (3).