alarms home

alarm system service

01.14.2007 | 34 Comments

In some implementations, the IR illuminators 1105 include IR LEDs having a wavelength of 850 nanometers. In some implementations, the image sensor for the doorbell camera 106 is less sensitive to 940 nm light than it is to 850 nm light. Therefore, IR LEDs having a 940 nm wavelength cause less interference with the image sensor than IR LEDs having an 850 nm wavelength. Further, in some implementations, a heat spreader 1128 is coupled to the IR illuminators 1105 to dissipate heat generated therefrom. The doorbell camera 106 may further include a speaker 1106 contained within a speaker box 1136 that is further disposed in proximity to speaker holes 718. When the speaker holes 718 are located on a bottom rim surface of the device housing 702, the speaker 1106 is placed behind the button assembly 1102 and faces the speaker holes 718. Given that the doorbell camera 106 includes both the microphone 1104 and the speaker 1106, a remote user may review live video streams captured by the camera module of the doorbell camera 106, and have a conversation in real time with the visitor. It is also desirable that the doorbell camera 106 can provide dynamic audio feedback to a user via the microphone 1104 and the speaker 1106. The feedback may concern an operational status of the doorbell camera 106 itself, a status of the outdoor environment surrounding the doorbell camera 106, the operational status of another electronic device associated with the doorbell camera 106, and/or the operational status of a set of electronic devices 106 associated with the doorbell camera. For ease of references, the speaker 1106 and the speaker box 1136 are collectively called the speaker 1106 in this application. In some implementations, the lens assembly 704 includes a cover glass 705, a camera lens structure 1132 and an infrared filter 1134.

elderly safety alarm

01.14.2007 | 16 Comments

Schools, prisons, commercial buildings, malls and retail outlets, government buildings, and of course individual homes all have unique security needs that have to be addressed with sophisticated, state of the art indoor security cameras. Schools are under more pressure than ever to keep their hallways and classrooms safe for the student population, and the demand for successful security solutions when it comes to commercial buildings and retail outlets has always been huge. Government buildings are likewise in need, and even private homes are prime candidates for indoor security solutions. Whether you're a business, school, prison, mall, or retail store, our Ultimate Buyer's Guide for Security Camera Systems can help walk you through the process of identifying what you need for your application. Retail establishments are in serious need of indoor security cameras for two main reasons the cash register/point of sale interface and the entrance to the store. These two hotspots are essential for keeping track of the daily crime that goes on in such an establishment. Shoplifting, employee malfeasance, robberies and more all have to pass through both of those “choke points,” and having a discrete camera there at all times makes the crimes themselves more difficult and less likely to happen, while at the same time providing invaluable evidence that will be needed to understand what happened and apprehend the criminals involved later. In banks and government buildings, indoor security is equally as important. In banks the cameras protect the assets of the institution, but they also protect the customers and employees. They keep an excellent and constant record of everything that goes on, a record that could be incredibly valuable. In government buildings the threat of crime and terrorism is combated with indoor security cameras and other measures.