Monitor Camera Device Superimposed Control Signal Transmission
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Solution Overview
Problem
Existing monitor camera devices face challenges in controlling cameras and rotary bases using superimposed transmission when switching to serial communication or IP protocol, requiring complex system configuration changes and individual physical addresses, which complicates control and authentication processes.
Innovation Solution
A monitor camera device configuration that includes a camera and rotary base control unit, enabling video signal transmission between them, with an outside communication unit for sending and receiving control signals, and a superimposition unit to superimpose rotary base control signals on video signals, allowing the camera to function as a master device for easy remote control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If superimposed transmission configuration is used for remote control, then control simplicity is improved, but adaptability to serial communication and IP protocol is worsened
Solution Approach 1:
The camera is designed to perform multiple functions: it serves as both the imaging device and the control signal generation unit. The camera can superimpose control signals on video signals for rotary base control, and also transmit control signals separately for serial communication and IP protocol, making it a universal control node that adapts to multiple communication methods
2Measurement precision
If individual physical addresses are assigned to each device for protocol communication, then communication precision is improved, but device complexity and control difficulty are worsened
Solution Approach 1:
The patent merges the control signal transmission function with the video signal transmission function. By superimposing control signals on video signals, the system combines multiple control functions into a single transmission channel, eliminating the need for separate control lines and individual physical addresses for each device
Solution Approach 2:
The camera acts as an intermediary device that receives control signals from the control unit and transmits them to the rotary base through superimposition on video signals. This intermediary approach allows the control unit to communicate with the rotary base without requiring direct physical address assignment to each device
3Reliability
If host authentication is required for each IP address, then security is improved, but processing complexity is worsened
Solution Approach 1:
The patent extracts the authentication function from the communication protocol layer and integrates it into the camera's control signal generation. The camera performs authentication processing locally when generating control signals, separating the security function from the communication transmission process and reducing the processing burden on each individual device
Data Source
AI summary
A camera (16) and a rotary base receiver (28) are connected to each other to be capable of transmitting a video signal. In the camera (16), a web server (50) sends out a video signal to the outside and receives a camera remote control signal and a rotary base remote control signal from the outside. A control unit (40) controls the camera (16) according to the camera remote control signal. The rotary base remote control signal is superimposed on a video signal to be transmitted to the rotary base receiver (28) by a video signal circuit (52). The rotary base receiver (28) extracts the rotary base remote control signal from the video signal, and controls a rotary base (14) according to the rotary base remote control signal. The configuration for a superimposed transmission can be utilized and both the camera and the rotary base can be controlled with ease through communications with the outside.