What is a wireless camera?
A wireless camera has a built-in transmitter that sends video signals to a receiver that can be connected to a TV, VCR or other equipment. No wires are necessary between the camera/transmitter and the receiver. Some people might misconstrue this term to mean the wireless device doesn’’t have any wires connected to it. "Wireless" is an electronics term referring to the method of information or signal transfer. It has nothing to do with how the device receives power (electrical outlet or batteries).
What is the difference between a CMOS and CCD image sensor?
CMOS image sensors are mixed signal chips containing pixels, and sometimes amplifiers, A/D converters, internal voltage generators, timing generators, and digital logic onto one chip - saving space, power, and cost. Compared to CCD image sensors, which are created in foundries using specialized (and expensive) processes, a CMOS image sensor benefits from economies of scale from a well-defined, highly produced process allowing for a cheaper wafer than CCD.
As a result, CMOS image sensors are being deployed in an increasing number of applications including PC camera, digital cameras, smart phones, PDA`s, laptops, security cameras, bar code readers, HDTV resolution cameras, and toys.
|
|
CCD |
CMOS |
|
Power Consumption |
300 mW |
50 mW |
|
Power Supply Mode |
15V / 5 V -9V |
Single Voltage |
|
System Integration |
Min. 3 Chips |
System on a Chip |
|
Image Quality |
Good |
Improving |
The advantages of CMOS image sensors include
1) low-voltage operation, single power supply, and low power consumption
2) compatibility with integrated CMOS circuitry
3) random access of image date
4) lower cost due to the use of "standard" CMOS technology
What other equipment do I need?
Our wireless video camera systems come complete with everything you need to send and receive the video signal. To view the live signal, just hook the receiver to any TV. To record the live signal, connect the receiver to a VCR.
How do wireless cameras record?
In a wireless system, the camera/transmitter sends the signal to the receiver. The signal penetrates walls and other objects before the receiver captures it and connects to a VCR for recording. You can use any VCR for recording and can record up to 8 hours of video on a normal tape.
How far can video be transmitted?
The ranges given in our specifications are rated LOS (line of sight), which refers to the distance between the transmitter and receiver with no obstructions between them. The standard system offers 100 meters LOS.
What is the penetration ability of the signal through walls/ceilings/objects?
Our standard 100 meters LOS (line of sight) system can typically penetrate 3-4 interior walls/ceilings with ranges up to 30-40 meters. The signal penetrates most solid objects, including glass, plastic, wood, fiberglass and some metals. The denser a material, the more the signal is weakened.
|
Total:9 Items Page:1/2
1 [2]: |
