A wireless sensing device and measurement method for instantaneous input power of a hoisting motor
A technology of input power and measurement method, applied in the direction of electric power measurement by using electromagnetic effect devices, can solve the problems of large size, high price and poor reliability of the motor, and achieve a high degree of intelligence, fast response and simple structure. Effect
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[0019] Embodiments of the present invention will be further described below in conjunction with accompanying drawings:
[0020] Such as figure 1 As shown, the instantaneous input power wireless sensing device of the lifting motor provided by the embodiment of the present invention includes a three-phase AC asynchronous motor 1 for a crane, a Hall current sensor 2, a Hall voltage sensor 3, a wireless transmission module 5 and a control host , the wireless transceiver module 5 is composed of an RF transceiver CC2530 chip and its peripheral basic circuits. The A-phase power input terminal of the three-phase AC asynchronous motor 1 for the crane is connected to the Hall current sensor 2, and the pins M of the Hall current sensor 2 are respectively connected to sampling resistors and wireless signal processing device, the sampling resistor Grounding, the output end of the wireless signal processing device is connected to the pin M of the Hall voltage sensor 3, and the input end...
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