Video Doorbell RF Reflector Layout for Indoor Signal Reception
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional video doorbells and cameras face inefficiencies in transmitting radio frequency signals due to the small portion of signals being received by user devices, as most signals are directed away from the premises.
Innovation Solution
Incorporating electromagnetically reflective members within the housing of the video device to redirect RF signals back towards the interior of the premises, utilizing a reflective member and trim plate to enhance signal reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the antenna transmits RF signals in multiple directions, then the coverage area is increased, but the signal strength received by user devices inside the premises is reduced
Solution Approach 1:
The antenna system is segmented into multiple antenna elements that can independently control signal transmission in different directions. This allows the system to divide the transmission task across multiple elements, with each element focusing energy toward the premises while collectively providing wide coverage area.
Solution Approach 2:
The beamforming system applies local quality control by adjusting the amplitude and phase of signals from individual antenna elements based on the desired transmission direction. This creates directional signal beams with higher intensity toward the premises while maintaining lower intensity in other directions, thus improving signal reception quality inside the premises without sacrificing overall coverage area.
2Area of stationary object
If the antenna transmits RF signals in all directions, then the transmission coverage is maximized, but the signal concentration towards the premises is reduced
Solution Approach 1:
The antenna system dynamically adjusts its radiation pattern in real-time based on the location and characteristics of the premises. By continuously optimizing the phase and amplitude of signals from different antenna elements, the system can concentrate energy toward the premises when needed while maintaining the ability to provide wide coverage area, thus reducing energy dispersion loss.
3Reliability
If a reflective member is added to redirect RF signals, then signal reception inside the premises is improved, but the device complexity is increased
Solution Approach 1:
The reflective member is merged with the antenna housing structure, integrating the signal reflection function into the existing device enclosure. This combination approach allows the reflective surface to be formed as part of the housing itself or as a closely integrated component, thereby improving signal reception inside the premises while minimizing the increase in overall device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Improves the reception of RF signals by redirecting them towards the interior of the premises, increasing the amount of signals received by user devices.
Implementation Method 1
A reflective member (e.g., an electromagnetically reflective member) may be positioned within the cavity of the housing. The reflective member may be sized and shaped to redirect at least a portion of the wireless signals (e.g., radio frequency signals) sent by the antenna, and initially directed exterior of the premises, towards an interior of a premises.
Data Source
AI summary
An apparatus, such as a doorbell, may include a doorbell housing. The doorbell housing may include a front surface facing exterior of a premises and a rear surface facing interior of the premises. A camera, doorbell activator, motion sensor, and/or light source may be at least partially positioned within the doorbell housing. An antenna may be positioned within the doorbell housing. The antenna may be configured to send a wireless signal comprising data to a data receiving device inside the premises. A reflective member may be positioned within the doorbell housing and configured to reflect at least a portion of the wireless signal that is sent toward the front surface of the doorbell housing.