Abstract: A system and method of operating a carwash with flexible service offerings comprises providing an automated computer terminal at which a user of a vehicle can purchase a car wash and at least one additional service, such as a hand service, after receiving the car wash, determining a queue for the at least one additional service at the time a user purchases a car wash, calculating a price for the at least one additional service based on the queue and displaying the price for the at least one additional service on the automated computer terminal. If the queue for the at least one additional service is low or empty, the user is provided with a discount to incentivize the user to purchase such service.

Abstract: An ESL driver circuit to be coupled to a host circuit and an ESL panel includes an ESL driver and a controlling transistor. The ESL driver has a serial clock input coupled to the serial clock port of the ESL driver circuit, a serial data input coupled to the serial data port of the ESL driver circuit, a control input coupled to the control port of the ESL driver circuit, and a busy output. The controlling transistor has a control terminal coupled to the busy output of the ESL driver, a first terminal coupled to a supply voltage level via a resistor, and a second terminal coupled to a ground level, and is configured to receive the busy output of the ESL driver to generate a busy signal at the first terminal.

Abstract: A terminal performs communication with an in-vehicle device to control a vehicle. The terminal includes a controller configured to switch and set a plurality of operation modes, and a vibration detection unit configured to detect vibration of the terminal. The operation modes include a first mode, a second mode different from the first mode, and a third mode where communication with the in-vehicle device is more restricted than in the first mode and the second mode. The controller is configured to, when the first mode is executed, in a case where vibration is not detected in the vibration detection unit for a predetermined time, switch the operation mode to the third mode, and when the second mode is executed, in a case where vibration is not detected in the vibration detection unit for a time longer than the predetermined time, switch the operation mode to the third mode.

Abstract: A contact switch, contact switch system, and interactive building block system carrying the contact switch based on UHF RFID technology for detecting mutual contact events are provided. The contact switch system includes a plurality of contact switches each including a chip and an antenna not connected to the chip. When the contact switch is in contact with another contact switch, the chip is connected to another antenna of the another contact switch and the antenna is connected to another chip of the another contact switch. The chip receives and converts a radio wave from the another antenna into power, and the power converts identifying information of the chip into a radio wave, which is sent to a reader. When the reader reads two encoded identifying information at the same time, whether the two contact switches are in contact with each other is determined by the contact switch system.

Abstract: A configurable electrical connector key for connecting an electronic door lock to an external unit, such as a lock monitoring or control system, includes a connector key housing shaped to engage the electronic door lock and a configurable circuit mounted within the connector key housing that makes a configured interconnection between selected components within the door lock and the external unit. The combination of an electrical connector key and an electronic door lock and a system and method including multiple differently configured electrical connector keys and one or more standardized electronic door locks allow selected sensors and functions of the door lock to be enabled by selecting an appropriately configured electrical connector key.

Abstract: Techniques for using wireless electronic keys with devices are disclosed. For example, a computer system can program an access code into a programmable wireless electronic key. An action or function of the device can then be made contingent on there being a match between the access code from the key and an access code known by the device. Also, audit data such as device access history can be wirelessly transferred from a device to an electronic key, whereupon the key can later transfer this audit data to a computer for analysis.

Abstract: A gas cylinder monitoring system is disclosed having a gas cylinder for receiving and distributing gas contained therein, a first monitoring system associated with the gas cylinder operable to monitor data associated with the gas cylinder and having a transmitter operable to broadcast the data at a controlled time and/or time interval in a discrete advertisement package, and a second monitoring system associated with one or more locations in which the first monitoring system may reside and having a receiver operable in a first mode to receive the advertisement package broadcast from the first monitoring system when the second monitoring system is within range of the first monitoring system.

Abstract: A building management system (BMS) for a medical facility that includes a plurality of rooms with at least one of the rooms having a plurality of sensors. An elevated infection risk determination system is operatively coupled to the plurality of sensors for determining when an elevated infection risk occurs in one or more of the rooms. The BMS may include a memory for storing one or more programmable infection risk compliance parameters, an input port for receiving an elevated infection risk alert for the particular room in the medical facility, a control port for providing control commands to one or more building components of the building management system, and a controller. The controller may be configured to provide control commands via the control port in response to receiving the elevated infection risk alert for the particular room based at least in part on one or more programmable infection risk compliance parameters to help mitigate the elevated infection risk in the particular room.

Abstract: This tag reader can be applied to a chipless RFID tag having a plurality of resonance frequencies that are associated with identification information. The tag reader is provided with: a radiation unit that radiates electromagnetic waves within a predetermined millimeter wave or microwave frequency band so as to cause sweeping of the radiation frequency; and a detection unit that detects the plurality of resonance frequencies of a chipless RFID tag on the basis of the reflection characteristics of waves reflected from the chipless RFID tag when the electromagnetic waves are radiated.

Abstract: An RFID system includes an RFID tag having a first magnetic field antenna, an article housing the RFID tag in a random direction, a conveying path conveying the article, and a reader/writer having a second magnetic field antenna communicating with the first magnetic field antenna through a magnetic field coupling and disposed along the conveying path. While the conveying path conveys the RFID tag such that an opening plane of the second magnetic field antenna and the RFID tag face each other, the second magnetic field antenna emits a magnetic flux. Moreover, a distance between the RFID tag and the second magnetic field antenna in a normal direction of the second magnetic field antenna is smaller than an opening diameter of the second magnetic field antenna.

Abstract: Security system devices are configured to retrieve historic first sensor data acquired from a protected area in response to receiving a threat alarm notification from a peer security system that is related to an area monitored by the peer security system, wherein the protected area is different from and geographically separate from the area monitored by the peer security system. The system devise determines that a security threat is indicated for the protected area by assessing the retrieved selection of historic first sensor data as a function of a relation of the threat alarm notification from the peer security system to the protected area, wherein assessing the historic first sensor data without the function of the relation of the threat alarm notification from the peer security system to the protected area results in determining that the security threat is not indicated for the protected area.

Abstract: A weapon system for a firearm having a barrel includes a powered accessory rail interface having an upper accessory rail and a lower accessory rail. A first accessory device is removably attachable to the upper accessory rail and is configured to receive electrical power and data signals over the powered accessory rail interface. A second accessory device is removably attachable to the lower accessory rail, the second accessory device configured to receive electrical power and data signals over the powered accessory rail interface. A power supply is electrically coupled to the powered accessory rail interface.

Abstract: Some embodiments provide RFID tag reading systems comprising: multiple sets of RFID readers at a retail shopping facility; a tag evaluation control circuit communicatively coupled with the multiple sets of RFID readers and at least one memory, and configured to: receive RFID tag information from the RFID readers; obtain and apply a first set of rules and identify a transition area within the retail shopping facility based on the received RFID tag information; identify a first set of RFID readers configured to read RFID tags as they move through the identified transition area; obtain and apply a second set of rules and establish a first null area adjacent the transition area configured to enable RFID tags crossing through the first null area and prior to entering the transition area to be in a predefined state when entering the transition area.

Abstract: A method of installing a software package may include storing a software package coupon on a proximity tag coupled to a computing device; accessing the software package coupon and installing an operating system OS agent during an initial booting of the computing device; and with the OS agent, downloading and installing the software package.

Abstract: An RFID interrogator transceiver with various improvements is proposed. A digital interface element implemented in a field-programmable gate array permits the use of a low-cost, low pin count microcontroller unit to control various integrated circuits within the transceiver both with the complexity afforded by the microcontroller unit and with the speed afforded by the field-programmable gate array. A transmit waveform generation architecture which can store opcodes in a segmented random access memory permits both leisurely loading of information over a digital interface from a low-cost microcontroller unit and fast playback over a wireless interface during low-latency RFID exchanges. Finally, a dual digital second-order resonator infinite-impulse-response filter permits a more hardware efficient channel bandpass filter solution than a finite-impulse-response filter and can be easily adjusted to accommodate RFID backscatter link frequencies and frequency tolerances.

Abstract: A location tracking and distance monitoring system includes a plurality of portable transponders, each portable transponder having a wireless transmitter and configured to transmit location data, a location database storing the location data transmitted by the plurality of portable transponders, wherein each portable transponder is identified as a tag with co-ordinates in the location database, a distance monitoring module comprising at least one processor and configured via computer executable instructions to access the location data from the location database, define a coverage region with a coverage radius around each tag, determine overlapping zones of the coverage regions of the tags, and generate tag clusters based on the overlapping zones. Further, an associated method and computer readable medium are provided.

Abstract: The methods, systems, and devices of the present disclosure are directed to a capacitively coupled label antenna as a component in an antenna system comprising the label antenna, a feed block, an antenna coupler, and a gap between the antenna coupler and the feed block. The label antenna is electrically connected to the antenna coupler, and the antenna coupler is capacitively coupled to the feed block through the gap. By the addition of the gap between the feed block and antenna coupler, the label antenna may be placed on the surface of a container without requiring a wired connection to pass through the container. The feed block may be a small electronic component on a circuit board while the label antenna may be significantly larger thereby providing increased frequency bandwidth and an improved antenna radiation pattern.

Abstract: A radio frequency identification (RFID) system may include a plurality of RFID readers and RFID tags. A RFID reader may include an antenna configured to operate at a first frequency and transmit a first beam of a first beam width to the plurality of RFID tags. The RFID antenna may further include an antenna array including a plurality of antennas configured to operate at a second frequency. The antenna array may be configured to transmit a second beam of a second beam width to the plurality of RFID tags. The RFID reader may receive backscatter signals and tag data from the plurality of RFID tags. The RFID reader may locate the plurality of RFID tags based on the backscatter signals and a direction of the second beam. The RFID reader may generate a 3D map of the tag data based on the locations of the plurality of RFID tags.

Abstract: An integrated circuit chip (2), an antenna (3) and a tamper loop (4), and in addition to this, a light emitting diode (LED) (20), configured to be activated, i.e. supplied with current, upon a signal received by the antenna (3). The LED (20) is integrated in the device in such a way that when the LED is activated in the above-described way, the LED lights up so as to become visible by the naked eye, on the condition that the tamper loop (4) is in a predefined state, either open or closed. The LED (20) is coupled between the same terminals (8,9) of the integrated circuit chip (2) as the tamper loop (4).

Abstract: A wearable multi Radio Frequency Identification (RFID) device is disclosed. The wearable multi RFID device includes a container that includes an inner housing that further includes a plurality of fixed slots configured to receive a plurality of RFID tags. The container further includes an outer casing that at least partially encloses the inner housing circumferentially and is configured to slide around the inner housing in the container. The outer casing includes a layer of electromagnetic shielding material. The outer casing is further configured to shield the plurality of RFID tags from being scanned, at a first position and selectively expose one of the plurality of RFID tags for being scanned, at an associated second position from a plurality of second positions, based on mapping with at least one criterion defined by a user.

Abstract: The invention relates to a transponder that transmits measurement values that does not have an energy source of its own, which draws energy from a radio field and that includes a novel input circuit to demodulate the high frequency. The novel circuit facilitates using the transponder for digital identification and measurement purposes respectively with a high level of efficiency. Intelligent coupling of a conventional full wave diode rectifier with an inductivity and a switching element, advantageously a MOSFET providing power for a digital circuit is facilitated as well as providing power for an analog quartz sensor, herein the power is always conducted into the path where it is required. Additionally the quartz sensor arrangement is activated or deactivated at will by precisely one switching element and an increased output voltage for the digital circuit is generated by smart modulation of the high frequency feed signal using the inductivity.

Abstract: A locker system includes a locker area, a plurality of lockers positioned in the locker area, and a plurality of augmented reality headsets. Individual augmented headsets of the plurality of augmented reality headsets including a display and being configured to be worn by respective individual users. The locker system also includes a controller communicatively coupled to the plurality of lockers and the plurality of augmented reality headsets, wherein the controller comprises a memory and a processor configured to execute instructions stored on the memory.

Abstract: Methods and systems for tag-based identification include receiving a set of parameters at a user device from a remote server. A counterfeit-proof identification tag is read using a sensor in the user device using the set of parameters. Features of the counterfeit-proof identification tag are extracted in accordance with a feature extraction function, using a processor, to generate a tag bit sequence. A challenge function is applied to the extracted features to generate a result. The result is transmitted to the remote server to authenticate the counterfeit-proof identification tag. The counterfeit-proof identification tag is authenticated with a tag database at the remote server.

Abstract: An entry and starting system in an object has a control and transmission unit configured to use a radio link to interchange at least one radio signal and an ultrasonic link to interchange at least one ultrasonic signal with a portable electronic device. The control and transmission unit sets up a radio link to the portable electronic device and uses the electronic device via the radio link to stipulate at least one relevant parameter for a subsequent ultrasonic link. The control and transmission unit is additionally configured so as, following the stipulation of the parameters, to set up an ultrasonic link according to the previously determined parameters. The entry and starting system checks an authorization of the portable electronic device, the portable electronic device being detected as authorized if the at least one relevant parameter of a subsequent ultrasonic link is concordant with the at least one stipulated parameter.

Abstract: A system and device, including reconfigurable physical unclonable functions (‘RPUFs’) and threshold cryptography, use cryptographic and physical means of security. A plurality of reconfigurable physical unclonable functions (‘RPUFs’) and a memory are connected to a processor that is configured to derive information associating the RPUFs with cryptographic shares of a sensitive value, store such information in the memory, and reconfigure a RPUF upon powering up of the device such that information stored in the memory is not valid for the reconfigured RPUF.

Abstract: A radio frequency identification (RFID) system. An RFID tag may include multiple antennas connected with associated circuitry. An RFID tag's multiple antennas and associated circuitry are connected in parallel, and output power of the multiple associated circuitry can be combined. Each of the multiple antennas can be tuned for a different operating property or region. An RFID reader can include multiple antennas connected with associated circuitry. RFID reader's multiple antenna interfaces connect with a baseband processor, which can integrate resources of the reader's multiple antennas and associated circuitry. RFID tag and/or reader can be configured to support wireless channel diversity in enhancing at least one of power delivery and communication link budget.

Abstract: Accessories for an electronic device and methods are described. The accessory comprises a substrate configured to be removably attached to the electronic device and a near-field communications (NFC) tag attached to the substrate and configured to transmit interaction data in response to receiving a signal from a separate electronic device. The interaction data causes the separate electronic device to access user data associated with a unique user account.

Abstract: There is provided a mechanism capable of processing a service using a plurality of sensor devices in a distributed manner while suppressing a communication load and providing the service. A control device is arranged on a local network side with respect to a gateway between an internet and a local network. The control device includes: a control unit configured to transmit or receive information regarding one or more sensor devices wirelessly connected to a first cell associated with the control device to or from another control device associated with a second cell.

Abstract: A system for monitoring the life cycle of a product even in open-loop retail environment having regard to the associated supply or value chain, comprising tag provision equipment arranged to obtain product information and to configure a wirelessly interrogatable electronic identification tag provided with externally readable identification information to a product item, wherein configuring incorporates at least partially automated determination, according to predefined decision logic, of at least one technical characteristic of tag implementation based on the product information to optimize the operation of the tag, and electronic data management system accessible via a communications network, preferably the Internet, comprising a data interface configured to receive and transmit data, and a data repository configured to store indications of received digital notifications of tag reading events in a plurality of activities of the associated supply or value chain, said notifications conveying said tag identific

Abstract: A corrugator for an extrusion system for shaping a tubular plastic product, having a multiplicity of mould blocks, a guide track, along which the mould blocks are guided in each case in pairs during the operation of the corrugator from a starting region of the guide track towards an outlet region of the guide track, a first return track, along which the mould blocks are guided during the operation of the corrugator from the outlet region towards the starting region, and a second return track, with the aid of which individual mould blocks can be removed from the first return track and/or can be inserted into the latter during the operation of the corrugator.

Abstract: A vehicle includes a liftgate system for preventing a garage door from closing on a liftgate when the liftgate is open. The liftgate system includes the liftgate and a processor. The liftgate includes an external-facing sensor. The processor is to, when a garage door is open, determine whether the liftgate is in a closing path of the garage door. When the liftgate is in the closing path, the processor causes the liftgate to be lowered to an intermediate position between a fully open position and a fully closed position.

Abstract: An RFID IC may operate at a relatively low clock frequency while impedance matching to an antenna is being tuned to increase the amount of power that the IC can extract from an incident RF wave. A tuning circuit tunes the impedance matching by adjusting a variable impedance coupling the IC and the antenna. The IC may power-up with a low clock frequency or reduce its current clock frequency to a lower clock frequency prior to tuning or during the tuning process, and may increase its clock frequency upon completion of tuning or during the tuning process.

Abstract: A method includes obtaining, by a first device, BLUETOOTH connection information of a second device, obtaining, by the first device according to the BLUETOOTH connection information, a BLUETOOTH signal from the second device, determining, by the first device according to the obtained BLUETOOTH signal from the second device, position information of the second device, and sending, by the first device, the position information to a third device.

Abstract: Embodiments of the present disclosure generally relate to systems and methods for providing access to information associated with electronically tagged goods. In one implementation, the system may include at least one processor configured to store tag IDs of a plurality of tags; and receive a pairing between a particular tag ID and a product ID. The at least one processor may also be configured to receive a pairing between the particular tag ID and an authorized entity associated with the particular tag ID; and receive, from a requester, a query including an encrypted tag ID of the particular tag. The at least one processor may also be configured to decrypt the encrypted tag ID; determine if the requester is the authorized entity; fulfill the query, if the requester is the at least one authorized entity; and deny the query if the requester is not the at least one authorized entity.

Abstract: Systems and apparatuses include a passive device coupled to a mounting boss arranged on a vehicle system, and a sensor structured to engage the mounting boss. The sensor includes a probe structured to sense a characteristic of the vehicle system, and a reader structured to send a query signal to the passive device and receive location data from the passive device associated with the mounting boss.

Abstract: A system for the distribution of RFID signals to a remote antenna or a remote antenna network comprising: a central control module to generate signals and control the protocol operations; cable, in particular twisted pair cable, connecting the central module to one or more antenna subsystems carrying substantially baseband representations of the reader to tag modulation and tag to reader modulation.

Abstract: A radio frequency (RF) positioning system comprises transceivers, positioning tags, processing units and a computing host. One or multiple positioning tags are attached to a target object being located. When the transceivers first generate and transmit transmission signals, one or multiple tag antennas in the positioning tag receive the transmission signals and transmit back modulated signals. The transceivers then receive and transmit the modulated signals to the processing units. The processing units are configured to obtain received signals, and calculate frequency differences based on the received signals and the transmission signals. The computing host calculates position coordinates of tag antennas based on the frequency differences, and then calculates the orientation of the target object being located according to the position coordinates of the tag antennas.

Abstract: A method for determining an arrival-time of a rotor blade that includes attaching an RF reader to a stationary surface and an RF tag to the rotor blade. Strength-of-signal data points are collected via an RF monitoring process that includes: emitting an RF signal from the RF reader; receiving the RF signal at the RF tag and emitting a return RF signal by the RF tag in response thereto; receiving the return RF signal at the RF reader; measuring a signal strength of the return RF signal as received by the RF reader; and determining the strength-of-signal data point as being equal to the measured signal strength. The RF monitoring process is repeated until multiple strength-of-signal data points are collected. A maximum strength-of-signal is determined from the multiple strength-of-signal data points, and the arrival-time for the rotor blade is determined as being a time that corresponds to the maximum strength-of-signal.

Abstract: An electronic price tag, an electronic price tag system, and a method of updating an electronic price tag. The electronic price tag includes a reed switch sensor and a processor. The reed switch sensor is configured to sense a magnetic field adjacent to the electronic price tag to generate an output signal. The processor is configured to: receive the output signal of the reed switch sensor, convert the output signal into information indicating whether the electronic price tag is normal, and send the information indicating whether the electronic price tag is normal.

Abstract: A method for determining an arrival-time of a rotor blade in a turbine engine that includes the steps of: having an RF reader attached to a stationary surface in the turbine engine; having an RF tag attached to a first region of the rotor blade; having a reference RF tag attached to a rotating structure near the RF tag; in relation to a first revolution of the rotor blade occurring during the operation of the turbine engine, collecting an arrival-time for each of the RF tag and the reference RF tag with the RF reader via an RF monitoring process; comparing the arrival-time of the RF tag to the arrival-time of the reference RF tag to determine an arrival-time test result for the first region of the rotor blade for the first revolution.

Abstract: A sensor network, which includes a sensor controller serially coupled to a plurality of sensor modules, is configured to program the sensor modules so as to transfer measurement data to the sensor controller and to synchronize the sensor modules to picosecond accuracy via on-chip or on-module custom circuits and a physical layer protocol. The sensor network has applications for use in PET, LiDAR or FLIM applications. Synchronization, within picosecond accuracy, is achieved through use of a picosecond time digitization circuit. Specifically, the picosecond time digitization circuit is used to measure on-chip delays with high accuracy and precision. The delay measurements are directly comparable between separate chips even with voltage and temperature variations between chips.

Abstract: This disclosure presents a method and system to securely distribute educational content to residents of controlled-environment facilities participating in voluntary educational programs. The method and system involve the provision of portable devices to residents. The residents view externally managed educational content on the portable devices. Users outside of the controlled-environment facility configure classes and students and tailor curricula for individual residents. A portable device downloads the appropriate educational content through a synchronization process that occurs within the controlled-environment facility by interfacing with a synchronization and charging station. The portable device functions only to access the educational content and does not allow any unrelated capabilities or functionalities.

Abstract: A system for identifying a cable end is provided. The system comprises: a near end for the cable, wherein the near end is visible; a far end for the cable, wherein the far end is in a hidden location; a cover assembly connected to the far end of the cable, wherein the cover assembly includes a near field communication device and a transponder, wherein the near field communication device transmits a signal through the transponder; and a device configured to communicate with the near field communication device, and further configured to facilitate a user to find the location of the cap connected to the far end.

Abstract: A power supply ECU executes a control process including: when it is determined that wireless charging is being performed, a step of acquiring a current I1 and a voltage V1 during power transmission operation; when it is determined that the power transmission operation is being performed and the power cannot be received, a step of determining whether or not a value of V1/I1 is greater than a threshold value R0; when it is determined that the value of V1/I1 is greater than threshold value R0, a step of determining that a power transmission coil has been short-circuited; and when it is determined that the value of V1/I1 is smaller than or equal to threshold value R0, a step of determining that a power reception coil has been short-circuited.

Abstract: A method for controlling and/or monitoring a production plant for producing a multiplicity of articles, wherein the production plant has a machine tool; a machine tool part which interacts with the machine tool in order to produce an article; an RFID transponder connected to the machine tool part; two RFID reading devices which are arranged at a distance from one another and from the machine tool; and a control device which is connected to the RFID reading devices via data lines. The method includes determining a first location of the machine tool part at a first time with the first RFID reading device and/or with the second RFID reading device; and determining a second location of the machine tool part at a second time, which temporally follows the first time, with the first RFID reading device and/or with the second RFID reading device; and outputting at least one control signal with the control device on the basis of the first location and the second location.

Abstract: A tag attachable to an animal, the tag comprising: a battery connected to a radio transceiver that consumes power from the battery during transmissions and receptions of signals to and from one or more proximate tags attachable to one or more other animals to generate paired tag readings; and a controller configured to operate the radio transceiver for a predetermined duration and frequency of transmissions, and a predetermined duration and frequency of receptions; wherein the predetermined duration and frequency of transmissions and the predetermined duration and frequency of receptions are based on power consumptions of the radio transceiver during transmissions and receptions, and a targeted number of paired tag readings of the tag.

Abstract: Examples of a system and a method for asset tracking are provided. The system includes wireless communication nodes in a space that receive a basic message including an asset tracking tag identifier and a basic message sequence number transmitted by an asset tracking tag. The wireless communication nodes measure a received basic message signal attribute, and transmit a node asset message including the asset tracking tag identifier, the basic message sequence number, a node identifier, and the measured signal attribute of the received basic message to an edge gateway. The edge gateway may receive the transmitted node asset message transmitted by each of some number of the wireless communication nodes and rank respective node identifiers extracted from the received node asset messages based the measured signal attribute. The edge gateway forwards an aggregated message to a fog gateway for obtaining an estimate of the location of the asset tracking tag.

Abstract: Synchronizing devices in a network. In one example, a first communication interface of a first communication device transmits a first message through a first communication path in a mesh network. The first communication path includes the first device, a second device, and a remote server. The first message includes a status of the first device. The first communication interface is switched to a sleep mode after transmission of the first message. Subsequently, the communication interface switches from the sleep mode to an awake mode. While the first communication interface is in the awake mode, the first communication interface transmits a second message through a second communication path in the mesh network. The second communication path includes the first device, a third device, and the remote server.

Abstract: A wireless patient monitor comprises a generic activator module having a universal connection port that connects with any one of multiple sensor devices, a battery, and a radio transmitter wirelessly connected to a host device. The generic activator module connects to any one of multiple sensor devices via the universal connection port to provide power from the battery to the sensor device and to receive digital physiological data from the sensor device. The radio transmitter transmits the digital physiological data received from the sensor device to a host device.

Abstract: A device locating method includes broadcasting by a first mobile device a signal comprising an identifier associated with the first mobile device. A second mobile device receives and measures the signal broadcast by the first mobile device to produce one or more signal measurements. The second mobile device transmits the identifier associated with the first mobile device and the one or more signal measurements to a computing system. The computing system receives the identifier associated with the first mobile device and the one or more signal measurements from the second mobile device. The computing system estimates a location of the first mobile device based on the one or more signal measurements, and the location is transmitted to a user associated with the first mobile device. A traffic flow determination method, product ordering method and associated systems are also provided.