초록

A method of establishing motor speed control, the method comprising the acts of generating a desired speed command, indirectly measuring the slip of the motor, and adjusting the speed command in response to the slip to maintain a constant speed.

대표청구항 ▼

A method of establishing motor speed control, the method comprising the acts of generating a desired speed command, indirectly measuring the slip of the motor, and adjusting the speed command in response to the slip to maintain a constant speed. dress and at least one of the content transfer channel

A method of establishing motor speed control, the method comprising the acts of generating a desired speed command, indirectly measuring the slip of the motor, and adjusting the speed command in response to the slip to maintain a constant speed. dress and at least one of the content transfer channel addresses at the communications port on the control channel. 9. The multiparameter light of claim 8 further comprising: a camera; and a video control interface coupling the camera to the internal control system. 10. The multiparameter light of claim 8 wherein the component for selectively accessing a plurality of content transfer channels comprises: a component for receiving continuous video signals; and a component for transmitting continuous video signals. 11. A method of controlling a lighting system comprising a digital communications path with a bandwidth sufficient for communicating a plurality of content signals in digital form on respective transfer channels having respective unique channel addresses, and a plurality of image projection lighting devices interconnected by the digital communications path and having respective unique device addresses, the method comprising: selecting a first one of the image projection lighting devices by the unique device address thereof; instructing the first image projection lighting device to communicate a first content signal on a first one of the transfer channels of the digital communications path by the unique channel address thereof; selecting a second one of the image projection lighting devices by the unique device address thereof; and instructing the second image projection lighting device to communicate a second content signal on a second one of the transfer channels of the digital communications path by the unique channel address thereof. 12. The method of claim 11 further comprising: selecting a third one of the image projection lighting devices by the unique device address thereof; instructing the third image projection lighting device to communicate the first content signal on the first transfer channel by the unique channel address thereof; selecting a fourth one of the image projection lighting devices by the unique device address thereof; and instructing the fourth image projection lighting device to communicate the second content signal on the second transfer channel by the unique channel address thereof. 13. The method of claim 12 further comprising: transmitting the first content signal to the digital communications path on the first transfer channel with one of the first and third image projection lighting devices; receiving the first content signal from the digital communications path on the first transfer channel with the other one of the first and third image projection lighting devices; transmitting the second content signal to the digital communications path on the second channel with one of the second and fourth image projection lighting devices; and receiving the second content signal from the digital communications path on the second channel with the other one of the second and fourth image projection lighting devices. 14. The method of claim 11 wherein the lighting system further comprises a central controller interconnected with the image projection lighting devices by the digital communications path, the method further comprising: communicating, with the central controller, the first content signal on the first transfer channel by the unique channel address thereof; and communicating, with the central controller, the second content signal on the second transfer channel by the unique channel address thereof. 15. The method of claim 11 wherein the lighting system further comprises a central controller interconnected with the image projection lighting devices by the digital communications path, the method further comprising: transmitting the first content signal to the digital communications path on the first transfer channel with one of the first image projection lighting device and the central controller; receiving the first content signal from the digital communications path on the first transfer channel with the other one of the first image projectio