Abstract:
The invention relates to providing application data on a device, for example on a remote-access device that is energetically essentially passive. The application data may be formed into a bit string and the bit string may be stored into a password memory space of the device, thereby saving memory space and possibly avoiding to add memory. At the same time, the password area may still be used as a password field, i.e. the bit string containing application data functions as a password. The password area may be protected from unauthorized access by an access password. For example, the password may be a password for inactivating the device and the access password may be for gaining access to the inactivation functionality of the device.
Abstract:
A method for monitoring temperatures comprises: - determining first temperature information (TINF1) based on first temperature data (TDATA1) obtained from a first RFID transponder (100a), - determining a first identifier (F1) based on first identification data (ID1) obtained from a first RFID transponder (100a), and - providing the first temperature information (TINF1) and the first identifier (F1) at an interface (500, MEM3) such that the first temperature information (TINF1) is associated with the first identifier (F1), wherein the first transponder (100a) is arranged to extract operating energy from a radio frequency field (ROG).
Abstract:
The invention relates to a remote-access device typically used for tagging items, a reader device for the same, system and methods of such devices. The remote-access device has an advanced capability that the device is able to signal by an advanced capability code. The device or the system may carry advanced capability data that can be used to utilize or enhance the advanced capability. The advanced capability data may be stored at the remote-access device, at the reader or in the system at a computer. The results of the advanced functionality may be logged onto a database or they may be stored back to the remote-access device. The advanced capability code, data and results may be stored onto the remote-access device in protected form, and the access key may be derived from identification information on the remote-access device.
Abstract:
According to an aspect of the invention,there is provided aradio-frequency identification with a transponder, the transponder comprising at least an antenna structure and an integrated circuit coupled with the antenna structure. The tag further comprises a securing portion for securing the tag to an article, wherein the securing portion is at least partly of shape change material that can be activated to undergo a shape change of substantially permanent nature.
Abstract:
According to an aspect of the invention, a radio-frequency identification tag is provided, comprising: a transponder with at least an antenna structure and an integrated circuit coupled with the antenna structure and an activation portion. The activation portion is at least partly of shape change material that may be activated to undergo a shape change for causing changed orientation of at least a portion of the antenna structure.
Abstract:
The invention relates to a method for determining the value of an environment variable using raw data from an energetically essentially passive remote-access apparatus. The method comprises obtaining a value of a measurable quantity from said raw data, requesting calibration data from an entity, and determining the value of the environment variable using said calibration data and said value of a measurable quantity. The invention also relates to calibrating a remote-access apparatus that is energetically essentially passive. Measurements for calibration data may be done in the normal life-cycle of the remote-access apparatus, and calibration data may be formed based on these measurements. The calibration data can be divided and stored on different storage devices, and the remote-access apparatus itself may be one storage device. Many remote-access apparatuses may be calibrated in a single run, or calibration may be done for each individual remote-access apparatus. The methods or various parts of the methods may be done with an RFID reader device. The RFID device may be equipped with a sensor determining the reference values of an environment variable, and it may be an integral part of the devices used to handle remote- access apparatuses during their normal life cycle. Calibration data can be stored in a database, and the data-base can be accessed when measuring the environment with a remote-access apparatus.
Abstract:
A sensor (100) comprises: - an RFID transponder (120) having an RFID chip (110), and - a capacitor (10) located outside the chip (110), 5 wherein the capacitance (Cx) of the capacitor (10) depends on an environmental variable (M W , Δy, F Z ), the sensor device (100) is arranged to provide measured data (XDATA) based on the capacitance (Cx) of the capacitor (10), the transponder (120) is arranged to send a response (RES) to an interrogation signal (ROG) such that the response (RES) contains the 10 measured data (XDATA), and the sensor device (100) is arranged to monitor the capacitance (Cx) of the capacitor (10) by using operating energy extracted from a radio-frequency field (ROG).
Abstract:
According to an aspect of the invention, a label (1) is provided, comprising: a facestock material layer (5); an adhesive layer (6); a metallic layer (3) arranged between the adhesive layer (6) and the facestock material layer (5) for preventing or at least reducing migration of chemicals from or through the adhesive layer (6) towards the facestock material layer (5), and a radio frequency identification transponder (2). A slot type antenna pattern (4) is provided for the radio frequency identification transponder (2) by the metallic layer (3), the antenna pattern (4) being formed via absence of metal from a defined area of the metallic layer (3).
Abstract:
A method for monitoring condition of a building structure (350, 380, 390) comprises: - determining first temperature information (T 1, TINF1) from first temperature data (TDATA1 ) obtained from a first temperature sensor (100a), - determining reference temperature information (T 1,REF ,TREF1 ) by using second temperature data (TDATA2) obtained from a second temperature sensor (100b), and - comparing the first temperature information (T 1, TINF1) with the reference temperature information (T 1,REF ,TREF1) in order to detect an abnormal condition of the structure (350, 380, 390), wherein the first sensor (100a, 100b) is positioned within the structure (350, 380, 390) such that a first distance (z 1 ) between the first temperature sensor (100a) and an inner surface (INSRF) of the structure (350, 380, 390) is different from a second distance (z 2 ) between the second temperature sensor (100b) and the inner surface (INSRF), wherein the first temperature sensor (100a) is an RFID transponder arranged to transmit the first temperature data (TDATA1), and wherein the first temperature sensor (100a) is arranged to extract operating energy from a radio frequency field (ROG).
Abstract:
A method for producing an RFID transponder (100) comprises: - attaching an RFID chip (50) onto a conductive sheet (70), and - cutting a portion (12a, 12b, 11) of an antenna element (10a, 10b, CA1) from the conductive sheet (70) by using a laser beam (LB1) after the RFID chip (50) has been attached to the conductive sheet (70).