Surveillance System 4G Streaming Bandwidth Control
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Solution Overview
Problem
Existing video surveillance systems using wireless connections are limited by bandwidth constraints, particularly in 2G and 3G networks, which prevent the practical transmission of streaming video, and require cameras to be inactive until an alarm or remote call occurs, restricting real-time monitoring capabilities.
Innovation Solution
The implementation of a surveillance system utilizing 4G network technology, digital video cameras, and a control unit that continuously records and stores video and audio, allowing for compressed transmission over a 4G wireless network, enabling streaming video and voice exchange, and notifying users of alarms via text messages, with the ability to retrieve past events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If streaming video is transmitted over 2G/3G wireless networks, then real-time monitoring capability is improved, but bandwidth constraints cause network congestion and prevent practical transmission
Solution Approach 1:
The system performs preliminary recording and storage of video data locally before transmission is needed. The camera continuously records video to local storage media, so when a user requests surveillance data, pre-recorded video can be transmitted without requiring real-time streaming over the congested network, thus solving the bandwidth limitation problem while maintaining monitoring capability
Solution Approach 2:
The patent introduces a surveillance control unit as an intermediary between the camera and the wireless network. This control unit manages video recording, compression, and selective transmission, acting as a buffer that decouples the continuous video generation from the intermittent network transmission, thereby reducing network congestion while enabling real-time access to surveillance data
2Use of energy by moving object
If cameras remain inactive until alarm or remote call occurs, then energy consumption is reduced, but real-time monitoring capabilities are restricted
Solution Approach 1:
Instead of continuous operation, the camera system uses periodic recording triggered by specific events (alarms or remote calls). The camera remains inactive during normal periods and activates only when triggered, creating a periodic operation pattern that reduces energy consumption while still providing monitoring capability when needed
Solution Approach 2:
The system performs preliminary continuous recording to local storage media, so when an alarm or remote call occurs, the camera and pre-recorded video are already ready for transmission. This preliminary action allows the camera to appear continuously operational for monitoring purposes while actually consuming minimal energy by only transmitting data on-demand rather than maintaining constant real-time streaming
Data Source
AI summary
This invention satisfies a need for surveillance of any fixed or mobile location from a 4G wireless terminal or cellular telephone equipped to view video. The surveillance device consists of digital video cameras, microphones and alarms interfacing a control unit which has the ability to time stamp and store all camera outputs on a storage device, recognize alarms, send alarm status to a remote wireless user, receive wireless calls from the remote user and act on remote commands to transmit any camera output occurring during a time period selected by the remote user. The latter will enable the remote user to document video and sound for a time interval of interest. Video and sound of this time interval may be placed in permanent storage for transfer to a portable video medium. This invention will employ the new 4G wireless network to allow a wireless terminal or telephone equipped with a video display to select the proper bandwidth needed to receive streaming video and sound from the remote surveillance device.