The conventional trend in the material handling industry now is to operate your overhead cranes and hoists from the floor rather than the traveling operator’s cab or in many cases have the ability of controlling the crane or hoist from either location. Due to the high labor expenses, it is more practical and economical to remove the operator from the cab in order for him to be utilized in other duties.
While pendant pushbutton stations hang from the hoist or a separate festoon track brings a crane operator to the load and gets rid of the need for a separate person to "hitch" or "signal", operators are often in the wrong place to safely and efficiently operate the crane or hoists. This action forces the crane operator to avoid obstacles or untangle cords. This is where Remote Wireless Controls can solves these issues.
Controlling cranes and hoists with wireless remote radio controls has been around for over 50 years but the technology has changed considerably in recent years thus allowing remote control manufactures to make products that are versatile, flexible, safer, more reliable, ergonomically designed, and now cost effective for even the smallest crane or hoist application.
Remote pendant control of crane and hoists are transmitted by radio frequency (RF) signals or infrared light. In the US, RF signals are widely used accounting for approximately 98% of all remote control transmissions. Infrared systems use signals that are very similar to those used by your TV remote control but have inherent problems. These problems are things such as operating ranges; frequent lines of sight dropouts and interference from dust, bright light, and sunshine; and relegation by leading US manufactures to down-load/up-load functions.
State-of-the-art technologies such as graphic displays and other types of wireless communications including Time multiple sharing, Frequency Hopping Spread Spectrum (FHSS), and Synthesized Frequencies are now used in Modern Radio Remote Control.
- Many systems have complex Graphic Displays which show a wide arrange of system diagnostics including battery life, strength of signal, any warning symbols that might be present, and 2 way radio frequency for an application that requires feedback on crane or hoist alarms, parameters, and command continuation.
- The ease of reconfiguring transmitters and elimination of fragile crystals is accomplished by the use of electronically Synthesized Frequencies
- Use up to four systems at one time without interference with Time Multiple Sharing technology.
- Allow your system to communicate virtually interference free with FHSS (Frequency Hopping Spread Spectrum). RF messages are sent over a multitude of frequencies several times a second looking for the clearest channel avoiding risk of interference on a single frequency. Transmitting over very long distance up to 3,000 plus feet can be achieved with Spread Spectrum technology.
The ease of programming with these technologies means operators can customize frequency channels, security codes, and output configurations with a PDA, laptop, or other self-configure system through infrared or other communication links. Furthermore a spare transmitter can easily be reconfigured by the user for applications on various systems without flipping dip switches or opening the case.
When used with the latest microprocessor technology such as I-Chips, flash memory, and surfaced mounted printed circuit boards, these technologies in remote control systems provide the essentials in flexibility, reliability, versatility, safety, and performance you demand as a remote control crane or hoist user.