# US 9,520,826 B2 · Solar cell module efficacy monitoring system and monitoring method therefor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,520,826 B2 - Document ID: US9520826B2 - Status: Granted - Kind: B2 - Application number: 14/828,459 - Filed: 2015-08-17 - Published: 2015-12-10 - Granted: 2016-12-13 - Earliest claimed: 2012-03-14 - Assignees: UKC Electronics (H.K.) Co., Ltd. - Applicants: UKC Electronics (H.K.) Co., Ltd. - Inventors: Jin-Syung Chen; Pei-Chin Lin; Osamu Nishimaniwa; Katsushi Suzuki; Lai-Pheng Gan; Jui-Kang Chiang; Chin-Yin Lee - Web page: https://patentgrep.com/patent/US9520826B2 ## CPC - H02S 50/00: Monitoring or testing of PV systems, e.g. load balancing or fault identification - G01K 13/00: Thermometers specially adapted for specific purposes - G01P 5/001: {Full-field flow measurement, e.g. determining flow velocity and direction in a whole region at the same time, flow visualisation} - G01W 1/12: Sunshine duration recorders (measuring intensity of sunshine G01J) - G01W 1/14: Rainfall or precipitation gauges (measuring volume in general G01F) - G08B 21/182: {Level alarms, e.g. alarms responsive to variables exceeding a threshold} - H02S 40/10: Cleaning arrangements - H02S 50/10: Testing of PV devices, e.g. of PV modules or single PV cells (testing of semiconductor devices during manufacturing {H10P74/00}) - Y02E 10/56: Power conversion systems, e.g. maximum power point trackers - H02S: GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES (obtaining electrical energy from radioactive sources G21H1/12; light sensitive inorganic semiconductor devices H10F; light sensitive organic semiconductor devices H10K30/00; thermoelectric devices H10N10/00; pyroelectric devices H10N15/00) - G01K: MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J5/00) - G01P: MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT (measuring or recording blood flow A61B5/02, A61B8/06; monitoring speed or deceleration of electrically-propelled vehicles B60L3/00; vehicle lighting systems adapted to indicate speed B60Q1/54; determining position or course in navigation, measuring ground distance in geodesy or surveying G01C; combined measuring devices for measuring two or more variables of movement G01C23/00; measuring velocity of sound G01H; measuring velocity of light G01J7/00; measuring direction or velocity of solid objects by reception or emission of radiowaves or other waves and based on propagation effects, e.g. Doppler effect, propagation time, direction of propagation, G01S; measuring speed of nuclear radiation G01T; measuring acceleration of gravity G01V; {measuring or recording the speed of trains B61L23/00; speed indicators incorporated in motor vehicles B60K35/00; measuring frequency or phase G01R; traffic control G08G}) - G01W: METEOROLOGY (radar, sonar, lidar or analogous systems, designed for meteorological use G01S13/95, G01S15/88, G01S17/95) - G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A solar cell module efficacy monitoring system includes a reference module which includes a solar power generation module and is to be maintained in a clean condition, an evaluation module which includes a solar power generation module and is to be covered by dust in an environment, maximum power point tracking devices which track powers of the reference module and the evaluation module and maintain power outputs at maximum points by connected to the reference module and the evaluation module, respectively, and, a PV communication recording device which records power generation results of the reference module and the evaluation module by connected to the reference module and the evaluation module, and a calculation display device which calculates power loss due to accumulation of dust on the evaluation module by connected to the PV communication recording device. ## Claims ### Claim 1 A solar cell module efficacy monitoring system, comprising: a reference module comprising a solar power generation module and configured to be maintained in a clean condition; an evaluation module comprising a second solar power generation module; a PV communication recording device, connected to the reference module and the evaluation module, that records power generation results of the reference module and the evaluation module; and a calculation display device, connected to the PV communication recording device, configured to calculate power loss due to accumulation of dust on the evaluation module. ### Claim 2 (depends on 1) The solar cell module efficacy monitoring system according to claim 1, further comprising a plurality of temperature sensors and configured to record operating temperature of the reference module and operating temperature of the evaluation module detected by the temperature sensors, wherein a sensor communication recording device is configured to be connected to the calculation display device. ### Claim 3 (depends on 1) The solar cell module efficacy monitoring system according to claim 1, further comprising a solarimeter configured to measure an amount of solar radiation and configured to record the amount of solar radiation measured by the solarimeter, wherein a sensor communication recording device is configured to be connected to the calculation display device. ### Claim 4 (depends on 1) The solar cell module efficacy monitoring system according to claim 1, wherein the reference module, the evaluation module, the PV communication recording device and the calculation display device are configured to transmit data one another through one of wire transmission, wireless transmission and power line transmission. ### Claim 5 (depends on 1) The solar cell module efficacy monitoring system according to claim 1, further comprising: a cleaning device connected to the reference module and configured to clean the reference module. ### Claim 6 (depends on 5) The solar cell module efficacy monitoring system according to claim 5, wherein the cleaning device is configured to recycle and reuse washing liquid. ### Claim 7 A method for solar cell module efficacy monitoring, the method comprising: providing a reference module comprising a solar power generation module and configured to be maintained in a clean condition; providing an evaluation module comprising a second solar power generation module; recording power generation results of the reference module and the evaluation module; and comparing the power generation results of the reference module and the evaluation module to determine power loss due to accumulation of dust on the evaluation module. ### Claim 8 (depends on 7) The monitoring method of claim 7 further comprising recording a temperature of the reference module and the evaluation module. ### Claim 9 (depends on 7) The monitoring method of claim 7 further comprising measuring and recording an amount of solar radiation of the reference module and the evaluation module. ### Claim 10 (depends on 7) The monitoring method of claim 7 further comprising cleaning the reference module. ### Claim 11 A solar cell module efficacy monitoring system, comprising: a reference module comprising a solar power generation module and configured to be maintained in a clean condition; a cleaning device connected to the reference module and configured to clean the reference module; an evaluation module comprising a second solar power generation module; a PV communication recording device, connected to the reference module and the evaluation module, that records power generation results of the reference module and the evaluation module; and a calculation display device, connected to the PV communication recording device, configured to calculate power loss due to accumulation of dust on the evaluation module. ### Claim 12 (depends on 11) The solar cell module efficacy monitoring system according to claim 11, wherein the cleaning device is configured to recycle and reuse washing liquid.