Frequently, questions arise about the transmission distance of 12V powered surveillance cameras. After sifting through various resources, a conclusion has been drawn, which we aim to share for your reference during design considerations.   **Pure Copper Wiring (1 square millimeter):** The resistance per kilometer (P) is approximately 18.5 ohms (some sources state 17.5 ohms). Resistance measurement is a reliable benchmark for cable quality. In this context, a well-referenced article titled "Resistance Measurement: A Simple Way to Identify Quality Network Cables" provides insights. The resistance value is a dependable indicator of cable quality, considering that the physical...

In today's fast-paced world, many families find themselves juggling the responsibilities of work while caring for elderly parents and young children at home. Concerns about the well-being of our loved ones can be overwhelming, especially when we are away from home and unable to keep a close eye on them. How can we ensure that our elderly parents and young children are being taken care of properly? What if an accident occurs, and there is no one around to help? These questions have led to the growing popularity of video surveillance, which offers a solution to...

The journey from the first generation of cameras to the present day has seen remarkable advancements in camera technology. Progressing from black and white to color, from conventional bullet cameras to all-in-one units, from analog to digital, and from standard definition to high definition, cameras have undergone a significant transformation, especially in the realm of security and surveillance.   A camera primarily consists of a lens, an image sensor, and a digital signal processor (DSP). The lens focuses the captured image onto the sensor, which is composed of an array of X-Y arranged pixels. Each pixel...