Field Monitoring-Scenic Solar Power Supply System
Solar wireless monitoring system using inexhaustible clean and environmentally friendly energy solar and wind power supply, making it possible to achieve remote uninterrupted monitoring in areas where it is impossible or inconvenient to get power supply. With the maturity of solar wireless monitoring system integration technology, the system has been more and more common in the global application shows a broad application prospects.
The system has many advantages: environmental protection and energy saving, no need to dig a trench or set up a power rack, no need for a large number of wire and pipe, no need for transmission and substation equipment, short construction period, no consumption of utility power and no electricity costs, no geographic location restrictions, low maintenance costs, low voltage without the risk of electric shock and mobile flexibility, etc.
The system can solve the problem that there is no utility power on the farm, and the front-end monitoring point is completely automatic without personnel on duty.
II. System principle and architecture
Solar wireless monitoring system mainly consists of three subsystems: solar power supply system, wireless video transmission system, and video monitoring system.
The solar power supply electronic system is composed of solar modules, wind turbines, colloidal batteries, intelligent charge and discharge controllers, etc.
III. (i) Solar power supply electronic system.
Solar power supply system
The system is mainly composed of solar modules, wind turbines, colloidal batteries and intelligent controllers. The solar module and wind turbine transform light energy into electric energy, which is controlled by an intelligent controller to store the electric energy in the battery (charging); when power supply is needed, the switch of the controller is turned on the load, and the electric energy in the battery is provided to the load (discharging). The main role of the intelligent controller is to manage the battery charging and discharging. When the battery power supply is insufficient during the working time, the controller automatically cuts off the load power supply and protects the battery from over discharging; when the battery is continuously charged, the controller protects the battery from over charging.
Solar power generation is the main source of energy for the whole system, and the size of the solar module needs to be decided according to the power consumption of the load equipment. Wind power generation usually plays the role of auxiliary power supply, in the time of continuous rainy days, the wind turbine will play an important role to ensure uninterrupted power supply to the controller, thus avoiding the paralysis of the power supply system in long rainy days.
Many users have such a misunderstanding, the camera is powered by solar energy, in fact, to the camera power supply is the battery, solar energy is only responsible for charging the battery, so the battery for solar power supply system is also a very important part; solar power supply system due to long-term in a substantial charge and discharge state, and the battery is usually buried in the ground, frequent replacement is time-consuming and laborious, so should be used Reliable quality maintenance-free energy storage type lead-acid battery, such as the budget allows the use of solar energy gel battery (service life of up to 5-8 years, deep discharge cycle performance, resistance to high frequency charging and discharging and over-discharging, self-discharge small can not be fully charged for a long time and discharge, adapt to a wide range of ambient temperature, especially low temperature, no acid mist gas precipitation, no electrolyte spillage more environmentally friendly).
The battery is the source of energy needed to maintain the system in the absence of sunlight, when the case of continuous rainy days, the battery needs to have enough power to maintain the continuous work of the whole system, because the price of solar gel battery is high, can not take into account the several long rainy days in a year and increase the system battery configuration, so that the system in most of the time battery configuration are in a wasteful State, too much configuration battery results in a substantial increase in costs. So the solar power application system should allow a low probability of power shortage, the battery independent power supply time is generally 3-5 days.
