Wireless Clock Systems In Hospitals

Sending a wireless signal through a hospital, whether through multiple buildings or interfering infrastructure, can be challenging

. In transmitting a wireless signal, barriers like a room surrounded by concrete and rebar or a building on the other side of a hospital campus will often pose a problem to the quality of the signal, and therefore the functionality of the wireless equipment as well. A common, yet inefficient solution to this problem is the use of high power transmissions, where if your wireless signal needs improvement, all you do is increase the power. By all means, this does work, but unless you are not concerned with transmitting high power radio waves through the air inside the building or costly FCC High Power licenses, this is not exactly the healthiest or cost effective route.

Consider a hospitals clock system. Many new and even older hospitals have thrown out the wired system and installed wireless clocks that are easier to maintain as well as control. But how well are these clocks receiving a signal? The clocks in the same building or range as the main transmitter are receiving the transmission fine, but what about the clocks in the other building located a half a mile away and on the other side of the parking garage? The signal to these particular clocks could very well be suffering or nonexistent, therefore compromising the accuracy of their synchronized time.

There is a solution to getting around this problem, one that doesnt involve cranking up the power of the transmitter. Spanning long distances and getting through concrete walls is done safely and successfully through the use of repeaters. Repeaters do one thing; RE-transmit the wireless signal, inevitably increasing the signal span that originally comes from the main transmitter. These simple yet efficient devices are what allow the wireless clocks in the remote building to receive the same signal quality as the wireless clock positioned right next to the main transmitter.

The repeater is a more practical solution over high powered transmitters for a number of reasons. First, repeaters are inexpensive. The cost to benefit ratio of implementing a transmitter of five times the power of a normal transmitter is astronomical compared to the purchase of one to three repeaters, especially when both improve the signal equally as well. Second, the energy consumption of a repeater is low, especially when comparing it to the consumption of a high power transmitter. Repeaters transmit their signal over a low and consistent wattage, making it energy efficient as well as cost efficient.

When trying to get around these challenges with wireless technology in a hospital, where distance and interference become the two biggest issues, proper equipment is required. Increasing the signal strength for every extra foot of signal range required is inefficient, as well as unhealthy. For wireless devices, especially wireless clocks, repeaters can easily and efficiently improve and equalize the signal quality of a wireless system.

by: Anthony Gaudio

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