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ELEVATOR CAR LOAD MEASUREMENT SYSTEM AND METHOD FOR DETERMINING A LOAD OF AN ELEVATOR CAR
ELEVATOR CAR LOAD MEASUREMENT SYSTEM AND METHOD FOR DETERMINING A LOAD OF AN ELEVATOR CAR
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机译:电梯轿厢负载测量系统和确定电梯轿厢负载的方法
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摘要
An elevator car load measurement system for determining a load of an elevator car includes a plurality of at least two force sensors that are daisy-chained and connected to a controller for determining the load. Each force sensor measures a force exerted by the elevator car on the respective force sensor and generates a frequency signal with a square-wave form, wherein the frequency signal is proportional to the respective measured force. At least one of the force sensors adds a first frequency signal received from the previous force sensor along the daisy chain a second frequency signal generated by the at least one force sensor to generate a frequency sum signal, the last of the force sensors in the daisy chain forwards the frequency sum signal to the controller.
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