Network Camera Digital Output Terminals Alarm Segmentation
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Solution Overview
Problem
The existing systems for integrating PIR motion sensors with cameras are costly and inefficient, with difficulties in monitoring power status and requiring additional hardware/software integration, leading to increased operational costs and complexity.
Innovation Solution
A network camera with digital output terminals that transmit image information via a wireless communication network and use a 4-wire cable to output alarms, allowing for simultaneous sensing of persons and events, and setting the digital ground line as a digital output line for problematic situations, enabling cost-effective reuse of common cables and reducing training needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PIR motion sensor and camera are both installed separately, then motion sensing function is achieved, but cost increases and operational efficiency deteriorates
Solution Approach 1:
The patent combines the PIR motion sensor and camera into a single integrated network camera device. The sensor unit and photographing unit are merged into one device, eliminating the need for separate installations and reducing system complexity while maintaining motion sensing functionality.
Solution Approach 2:
The network camera is designed to perform multiple functions: it can sense motion through the PIR sensor unit, capture images through the photographing unit, and transmit data through the communication unit. This multi-functional design replaces multiple separate devices with a single universal device.
2Reliability
If separate PIR sensor and camera are installed, then motion detection is achieved, but installation cost increases
Solution Approach 1:
By merging the PIR sensor and camera into a single integrated device, the patent eliminates the need to purchase and install two separate devices, thereby reducing material costs and installation expenses while maintaining full motion detection capability.
3Reliability
If traditional alarm output is used with normally-closed terminals, then alarm signaling is achieved, but false alarms occur during power shutdown
Solution Approach 1:
The patent divides the alarm output into two separate digital output terminals: one for intrusion alarms and another for trouble alarms. This segmentation allows independent control and clear distinction between different alarm types, preventing confusion and false alarms.
Solution Approach 2:
The control unit continuously monitors the power status and sensor operation, providing feedback control to the digital output terminals. When power is shut down or the sensor is inactive, the control unit actively prevents alarm output, eliminating false alarms while maintaining normal alarm functionality during operation.
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
This solution reduces costs and improves operational efficiency by allowing the reuse of common 4-wire cables, enabling workers to install cameras without specific training, and simplifies the integration of motion sensor functions into network cameras, thereby lowering the entry barrier for network camera monitoring systems.
Implementation Method 1
A PIR (Passive Infrared) motion sensor senses a human body in the area where it is installed, and transmits corresponding sensing information to an alarm panel when sensing a human body.
Data Source
AI summary
The present invention provides a network camera having a plurality of digital output terminals for outputting an alarm, and a method of controlling the network camera. That is, the present invention includes a plurality of digital output terminals for transmitting image information obtained through a wireless communication network to a server and transmitting information about sensing a person and information about a problematic situation, respectively, using a 4-wire cable, so it is possible to check whether it is a normally-closed state or a normally-open state through the plurality of digital output terminals that are individually managed, respectively, and accordingly, it is possible to improve convenience in use.