Device Identification via Wireless Signal and Multicast Response
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Solution Overview
Problem
Existing device-identifying systems face difficulties in identifying devices over networks with slow communication speeds or limited bit transmission, leading to cumbersome operations for users when multiple devices are connected.
Innovation Solution
A device-identifying system that uses a controlling device to transmit a device-identifying signal via wireless communication methods limited in directivity or range, allowing the controlled device to respond via multicast or broadcast, eliminating the need for specifying addresses and reducing data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the transmitting device transmits complete address information in the identification start signal, then the receiving device can accurately identify the transmitting device, but the communication speed becomes a bottleneck and data transmission becomes complex when using slow communication means or limited bit transmission
Solution Approach 1:
The invention segments the address information transmission into two parts: the transmitting device transmits only its own address information in the identification start signal, while the receiving device uses its own address information already stored in memory to complete the bidirectional address mapping. This segmentation allows accurate identification without requiring complete address information to be transmitted over the slow communication channel.
Solution Approach 2:
The receiving device performs self-service by utilizing its own pre-stored address information to complete the address mapping process. Instead of relying solely on the transmitting device to provide complete address information, the receiving device contributes its own address data to finish the identification process, thereby reducing the data transmission burden on the slow communication channel.
2Adaptability or versatility
If the device list includes all devices connected to the network, then all capable devices can communicate, but the user has to select from many devices which is troublesome operation
Solution Approach 1:
The invention applies local quality by using the directional characteristic of infrared light to create a localized identification range. The identification start signal is transmitted in a specific direction, and only receiving devices within that directional range can receive and respond to the signal. This creates a localized interaction zone that naturally limits the number of visible devices for the user, making selection easier while maintaining network connectivity for all devices.
3Measurement precision
If the transmitting device transmits address information in the identification start signal, then the receiving device can identify the transmitting device, but the name of the device shown in the device list becomes irrelevant to the installation location
Solution Approach 1:
The invention introduces infrared light as an intermediary carrier that conveys directional information and address data from the transmitting device to the receiving device. This intermediary enables the receiving device to not only identify the transmitting device but also determine its spatial location relative to the transmitter, thereby establishing a relevant connection between device identification and installation location without relying on pre-configured names.
Data Source
AI summary
There is provided an device-identifying system including: a controlling device capable of communicating with external devices via a network and using a wireless communication method to transmit an device-identifying signal, for identifying one of the external devices capable of communicating by the wireless communication method, to the one of the external devices without relying on the network; and a controlled device capable of communicating with the controlling device via the network, when the controlled device receives the device-identifying signal from the controlling device, the controlled device transmitting, to the network via multicast or broadcast, a response indicating that the controlled device has received the device-identifying signal, wherein when the controlling device receives the response, the controlling device determines that the controlled device having transmitted the response is the device having received the device-identifying signal transmitted from the controlling device.