Navigation beacons may be trained to receive signals of opportunity from one or more vehicles, to recognize their own position based on such signals, and to transmit information regarding their own position to one or more other vehicles accordingly. The navigation beacons may be of small size and feature a basic construction including one or more transceivers, power sources and the like, and may communicate via a Bluetooth Low Energy, Ultra Wideband or long-range low-power wireless standard, or any other standard. The navigation beacons may be installed in any location, preferably being mounted to one or more existing fixed structures or facilities (e.g., transportation structures or facilities), and may operate in active and/or passive modes when learning their positions or servicing position information to one or more remote devices.

New measurement inputs for Kalman Filter or similar estimation approaches (at each sample) may include: DSRC messages from roadside transmitters (RSTs), such as: how long it takes for a DSRC signal from one or more fixed RSTs to reach the vehicle and comparison of that information with vehicle position estimates from a signal propagation model, which is based on how long it takes a DSRC signal to reach the vehicle GPS location from a fixed known RST location. From such measurements, it can be determined how much longer (or shorter) it takes to receive the RST message compared to the previous sample, which, in turn, gives an idea how far the vehicle has moved over a sample relative to a fixed RST location.

New measurement inputs for Kalman Filter or similar estimation approaches (at each sample) may include: DSRC messages from roadside transmitters (RSTs), such as: how long it takes for a DSRC signal from one or more fixed RSTs to reach the vehicle and comparison of that information with vehicle position estimates from a signal propagation model, which is based on how long it takes a DSRC signal to reach the vehicle GPS location from a fixed known RST location. From such measurements, it can be determined how much longer (or shorter) it takes to receive the RST message compared to the previous sample, which, in turn, gives an idea how far the vehicle has moved over a sample relative to a fixed RST location.

A system for adjusting a relevance weight value for a content item is described. The system comprises a content delivery module configured to deliver a plurality of content items to a device via a network. The content items are displayed on the device. A user provides a feedback input that is a positive review or a negative review for a content item. The feedback input is transmitted to a relevance weight adjustment module that subtracts a first point value from the relevance weight value associated with a first set of users when a negative review is received for the content item and adds a first point value to the relevance weight value associated with a first set of users when a positive review is received for the content item.

This application describes methods and system for positioning pico remote radio units. Drive test information on a terminal side and drive test information on a network management system side are recorded when a drive test is performed, and pico remote radio unit position information and a pico remote radio unit identifier are automatically associated and bound based on the drive test information on the terminal side and the drive test information on the network management system side, to facilitate positioning of a pico remote radio unit, and to ensure efficient system operation and maintenance.

A delivery device includes an image capture device for generating delivery image data of a delivery at a service address. A processor executes a delivery application to bidirectionally communicate delivery data with the delivery data server via the network interface, wherein the delivery data includes a delivery tracking number and the delivery image data. The delivery data server processes the delivery data to provide a delivery confirmation to a customer at the service address, wherein the delivery confirmation includes the delivery tracking number and the delivery image data.

A delivery device includes an image capture device for generating delivery image data of a delivery at a service address. A processor executes a delivery application to bidirectionally communicate delivery data with the delivery data server via the network interface, wherein the delivery data includes a delivery tracking number and the delivery image data. The delivery data server processes the delivery data to provide a delivery confirmation to a customer at the service address, wherein the delivery confirmation includes the delivery tracking number and the delivery image data.

A sales rotation system is disclosed that increases walk-up sales. The sales rotation system creates an equitable and efficient management of sales personnel on the dealership floor. The sales rotation system corrects one or more business issues with handling of walk-up sales including sales personnel bickering over who is up next in the rotation, track lead collection and close ratios, creating an automated way to notify a sales person when the sales person is up, digitally fence an up area and provide a notification when sales personnel who are up wander from the showroom entry, setting up a count to be flexible based on dealership volume and size, and improving customer experience by managing the number of sales personnel on the dealership floor and equitably rotating them.

A sales rotation system is disclosed that increases walk-up sales. The sales rotation system creates an equitable and efficient management of sales personnel on the dealership floor. The sales rotation system corrects one or more business issues with handling of walk-up sales including sales personnel bickering over who is up next in the rotation, track lead collection and close ratios, creating an automated way to notify a sales person when the sales person is up, digitally fence an up area and provide a notification when sales personnel who are up wander from the showroom entry, setting up a count to be flexible based on dealership volume and size, and improving customer experience by managing the number of sales personnel on the dealership floor and equitably rotating them.

Provided are systems and methods for reversing the conventional roles of central and peripheral devices in a BLE network. Doing so includes implementing an end node (EN) as the sole initiator of a connection between a particular EN and a particular access point (AP). Such implementation includes determining a location of the EN, in which that location is resolved by the EN and defined with respect to exchanges of Constant Tone Extensions (CTEs) between the EN and reference points (RPs).