Solar Module Theft Monitoring via Master-Slave Data Aggregation
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Solution Overview
Problem
Existing methods for protecting solar modules from theft are ineffective and costly, particularly in large solar systems installed remotely, as they require extensive security personnel and high operational costs due to the need for multiple GSM units and continuous monitoring.
Innovation Solution
A method using electronic monitoring units with a microcontroller that transmit status information via a wide-area data communication network, where a first monitoring unit acts as a slave in a short-range network and assumes the master role if stolen, sending an alarm signal via a long-range network, reducing GSM module activity and power consumption, and utilizing a single active GSM module for status updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each solar module is equipped with its own GPS and GSM units for monitoring, then theft detection capability is improved, but operational costs and energy consumption increase significantly
Solution Approach 1:
The patent combines multiple monitoring functions (GSM communication, GPS tracking, theft detection) into a single integrated monitoring unit that is shared across multiple solar modules, rather than equipping each module with separate units. This merging reduces the total number of active GSM modules at any given time, thereby lowering energy consumption and operational costs while maintaining comprehensive theft detection capability across the entire solar farm.
Solution Approach 2:
The monitoring unit is designed to perform multiple functions: it serves as both a theft detection device and a communication hub for multiple solar modules. The single active GSM module can communicate with multiple sleeping modules, and the system can detect theft, track position, and send alerts all through this universal unit, eliminating the need for each module to have dedicated GSM and GPS hardware.
2Reliability
If a large number of SIM cards and GSM units are deployed for monitoring each solar module, then monitoring coverage is improved, but operational costs increase due to connection fees and SIM card purchases
Solution Approach 1:
The patent merges the communication functions of multiple solar modules into a single GSM unit. Instead of deploying one GSM module per solar module (which would require many SIM cards), the system uses one active GSM module to monitor multiple sleeping modules. This dramatically reduces the quantity of SIM cards and GSM units needed, lowering operational costs while maintaining comprehensive monitoring coverage through the master-slave architecture.
3Speed
If continuous monitoring and alarm transmission are implemented across all solar modules, then theft detection speed is improved, but power consumption increases requiring larger batteries
Solution Approach 1:
The patent implements periodic action by having monitoring units switch between active and sleeping states. The active module continuously monitors and can immediately detect theft, while sleeping modules conserve power. When theft is detected, the system activates communication and alarm functions. This periodic activation maintains fast theft detection capability while significantly reducing overall power consumption, eliminating the need for large battery capacities.
Data Source
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AI summary
A method for theft-prevention monitoring of individual solar modules (2a, 2b) in a solar installation (1) having a multiplicity of solar modules, wherein the solar installation (1) has an electronic monitoring unit (12a, 12b) which transmits status information, such as in particular the generated voltage and temperature of the modules, to a server (30) via a long-range data communication network (28), and generates a warning signal when a solar module (2a, 2b) is removed from the solar installation (1), is defined by the fact that a first monitoring unit (12a) is connected to a first solar module (2a), and a second monitoring unit (12b) is connected to a second solar module (2b) of the solar installation (1) in order to exchange data with one another via a further short-range data communication network (26), that the first monitoring unit (12a) on the first solar module (2a) has the function of a slave in the short-range data communication network (26), which slave transmits local status information to the second monitoring unit (12b) via the short-range data communication network, that the second monitoring unit (12b) performs the function of a master in the short-range data communication network (26), which master transmits the local status information of the first solar module (2a) and the local status information of the second solar module (2b) in cumulated form to the server (30) via the long-range data communication network (28), and that when the data exchange between the first monitoring unit (12a) and the second monitoring unit (12b) is interrupted, the first monitoring unit (12a) assumes the function of a master which transmits an alarm signal and/or status information to the server (30) via the long-range data communication network (28). The invention also relates to a solar installation (1) having a multiplicity of solar modules (2, 2a, 2b) for carrying out the method.