Abstract: It is known for a product to be mass produced by way of a manufacturing process. Typically, a quality control step is used in a manufacturing process to monitor the quality of manufactured products. However, quality control procedures in manufacturing are typically labour intensive. A technician or other person must inspect the product and carry out any necessary tests. The present disclosure provides a surface roughness measurement system and method for determining a surface roughness of a product with an imaging system, a coherent light source, a light sensor and several trained machine learning algorithms.

Abstract: Techniques are described for providing an ad hoc mesh network of nodes that employ a light-based transmission protocol, such as a version of light fidelity (LiFi). The mesh network includes multiple nodes that each includes transceiver(s) for sending and receiving light-based communications. A node in the mesh network can receive a message signal sent by another node, by detecting the light modulations emitted by the sending node to transmit the message signal. The receiving node can forward the message signal to other node(s) that are proximal to the receiving node (e.g., that are in line-of-sight with the receiving node), by emitting the appropriate light modulations to send the message signal. In this way, a message signal can be conveyed from one node to another, from one endpoint of the mesh network to another endpoint of the mesh network.

Abstract: Methods, systems, apparatus, including computer programs encoded on computer storage medium, for location-based content delivery to vehicles using LiFi is disclosed. In one aspect, a method is disclosed that includes operations of obtaining, by a LiFi transceiver unit, a vehicle identifier that identifies a vehicle, providing, by the LiFi transceiver unit and to a server, the vehicle identifier using an internet protocol network, wherein the server is configured to determine a location of the vehicle based on the vehicle identifier and an identity of the LiFi transceiver unit that provided the vehicle identifier, receiving, by the LiFi transceiver unit and from the server, the location of the vehicle and location-based content, encoding, by the LiFi transceiver unit, the location-based content into multiple light signals, and providing, by the LiFi transceiver unit, the encoded location-based content to the vehicle using the location of the vehicle.

Abstract: Methods, systems, apparatus, including computer programs encoded on computer storage medium, for location-based content delivery to vehicles using LiFi is disclosed. In one aspect, a method is disclosed that includes operations of obtaining, by a LiFi transceiver unit, a vehicle identifier that identifies a vehicle, providing, by the LiFi transceiver unit and to a server, the vehicle identifier using an internet protocol network, wherein the server is configured to determine a location of the vehicle based on the vehicle identifier and an identity of the LiFi transceiver unit that provided the vehicle identifier, receiving, by the LiFi transceiver unit and from the server, the location of the vehicle and location-based content, encoding, by the LiFi transceiver unit, the location-based content into multiple light signals, and providing, by the LiFi transceiver unit, the encoded location-based content to the vehicle using the location of the vehicle.

Abstract: Techniques are described for providing an ad hoc mesh network of nodes that employ a light-based transmission protocol, such as a version of light fidelity (LiFi). The mesh network includes multiple nodes that each includes transceiver(s) for sending and receiving light-based communications. A node in the mesh network can receive a message signal sent by another node, by detecting the light modulations emitted by the sending node to transmit the message signal. The receiving node can forward the message signal to other node(s) that are proximal to the receiving node (e.g., that are in line-of-sight with the receiving node), by emitting the appropriate light modulations to send the message signal. In this way, a message signal can be conveyed from one node to another, from one endpoint of the mesh network to another endpoint of the mesh network.