Wireless Monitoring of Fly Bar Rigging

Many overhead flying systems rely on a rigger's experience and knowledge of a building or site to ensure that hanging points are not overloaded and bars in flying systems are moved safely.Radio acquisition modules measure the weights of each hanging point on a bar and a handheld display gathers this data and provides the entire load of the bar to prevent overloading.

The Application:

A touring house with a counter-weight flying system was experiencing issues with companies overloading and snagging lighting bars leading to bent bars and costly damage to the flying system. Each bar had four hanging lines along its length. The solution had to provide users with a simple way to measure the entire load on the bar as well as each of the four lines individually to ensure the total load was evenly distributed and within required working limits.

The Solution:

The system solution consisted of four load cell shackles, one at each hanging point on the bar. A handheld T24-HS device was configured to receive data from all four T24 modules. As well as wake and sleep, the modules before and after were used to preserve battery life.

The wireless handheld display T24-HS was used to gather and sum the weights from the four acquisition modules. The display also allowed the user to scroll through each of the individual points on the bar to ensure evenly distributed loads. The T24 units were set to provide readings 3 times per second and if used for one hour daily would provide two years of service free use before replacement batteries would be required.

Load monitoring system for event riggers

In addition to the products below, we have designed a product specific for this use. T24 consists of Crosby safety bow shackles with high accuracy load-pins and a wireless handheld device which constantly displays the load of a rig up to 200 metres away.

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Products used in this application:

Wireless Portable Display Receiver for Single Wireless Transmitters

Wireless Portable Display Receiver for Single Wireless Transmitters

OEM Wireless 2 KHz Bridge Sensor Transmitter

OEM Wireless 2 KHz Bridge Sensor Transmitter

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