METHOD FOR MONITORING PHOTOVOLTAIC POWER GENERATION USING RTU, AND WIRELESS RTU DEVICE THEREOF
First Claim
1. A method for monitoring photovoltaic power generation using remote terminal unit (RTU) comprising:
- receiving photovoltaic power generation state information via ZigBee wireless communications from a photovoltaic inverter;
measuring the power of ZigBee wireless communications signals through which the photovoltaic power generation state information is received;
determining whether the measured power is within a normal range;
performing transmission power control and low-noise amplifier (LNA) control on the basis of the determination result;
generating remote message on the basis of the received photovoltaic power generation state information;
verifying the presence of errors in the generated remote message; and
transmitting the generated remote message to a monitoring server via Wi-Fi communications in absence of the errors on the basis of the verification result.
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Accused Products
Abstract
The present invention provides a photovoltaic power generation monitoring method of a remote terminal unit (RTU), comprising: receiving photovoltaic power generation state information via a ZigBee communication from a photovoltaic inverter; measuring the power of a ZigBee wireless communication signal and determining whether the power belongs to a normal range; performing transmit power control and low-noise amplifier (LNA) control on the basis of the determination result; generating a remote message on the basis of the received photovoltaic power generation state information and verifying the remote message; and transmitting the remote message to a monitoring server via a Wi-Fi communication. Accordingly, the photovoltaic power generation monitoring method of the present invention enables monitoring of photovoltaic power generation facilities to be conducted smoothly.
31 Citations
17 Claims
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1. A method for monitoring photovoltaic power generation using remote terminal unit (RTU) comprising:
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receiving photovoltaic power generation state information via ZigBee wireless communications from a photovoltaic inverter; measuring the power of ZigBee wireless communications signals through which the photovoltaic power generation state information is received; determining whether the measured power is within a normal range; performing transmission power control and low-noise amplifier (LNA) control on the basis of the determination result; generating remote message on the basis of the received photovoltaic power generation state information; verifying the presence of errors in the generated remote message; and transmitting the generated remote message to a monitoring server via Wi-Fi communications in absence of the errors on the basis of the verification result. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A wireless remote terminal unit (RTU) device for monitoring photovoltaic power generation comprising:
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a ZigBee wireless communications unit for receiving photovoltaic power generation state information via ZigBee wireless communications from a photovoltaic inverter; a power measuring unit for measuring the power of ZigBee wireless communications signals through which the photovoltaic power generation state information is received; a measured power determining unit for determining whether the measured power is within a normal range; a controlling unit for performing transmission power control and low-noise amplifier (LNA) control on the basis of the determination result; a message generating unit for generating a remote message on the basis of the received photovoltaic power generation state information; a verifying unit for verifying the presence of errors in the generated remote message; and a Wi-Fi communications unit for transmitting the generated remote message to a monitoring server via Wi-Fi communications in absence of the errors on the basis of the verification result. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An integrated ZigBee wireless communications module, comprising:
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a ZigBee wireless communications unit for receiving photovoltaic power generation state information via ZigBee wireless communications from a photovoltaic inverter; a power measuring unit for measuring the power of ZigBee wireless communications signals through which the photovoltaic power generation state information is received; a measured power determining unit for determining whether the measured power is within a normal range; a temperature sensor for reading an external temperature of the integrated ZigBee communications module; and an information transmitting unit for transmitting information output from the temperature sensor and the measured power determining unit to a wireless remote terminal unit (RTU). - View Dependent Claims (16, 17)
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Specification