Our wireless monitoring systems are the result of a long evolutionary process. Lawson Labs has been in the datalogging business for 19 years and has developed hardware and software for acquiring data from almost any group of sensors. Our systems are designed to be fault-tolerant, and to survive in unfriendly environments. The actual measuring of the sensor outputs is not an afterthought; it is the core of our business. We use instrument-grade data acquisition systems of our own design and manufacture. These same systems are used in analytical instrumentation requiring the best sensitivity and reliability. We can measure smaller signals with more accuracy, with better noise immunity, and at lower cost.
These systems employ Motorola ReFLEX 50 CreataLink2 XT two-way pagers and the SkyTel network. Monthly charges can be much lower than for systems using cell phone technology.
Our base system can be expanded to sixteen channels. Sixty four-channel or ninety six-channel systems are also possible. The system has been designed to be flexible. Practically everything regarding the set-up and function is configurable. You define the requirements and we deliver preprogrammed turnkey systems.
Lawson Labs has designed and built similar systems for a Fortune 500 company. Those systems communicate via telephone modems instead of a wireless link. They have been in use in significant numbers for many years and are proven reliable. Our data logging expertise allows us to avoid the pitfalls that trap the inexperienced.
Alarming systems can be vulnerable to false triggers. We have gone to great lengths to minimize that chance. Our noise immunity is excellent; it has to be, because our A/D converters resolve better than one part per million. The host computer can verify any alarm condition. Power disruptions are handled smoothly. Routine message traffic can be stored, and sent during off-peak hours for increased economy. Different time windows can be set for different transmissions. We have tested extensively in sub-optimal wireless coverage situations to avoid anomalous behavior.
All messages are sent to a host computer equipped with one or more transceivers. The host computer will acknowledge receipt of alarm messages and will undertake the action list for any alarm. Data is posted on the web or private network. The host computer can also be used for analysis. Trends can be tracked, and warnings generated if a future failure is likely.