On the evening of July 6, the world was drizzling. The author came to Jiaoguang Group in Jiaojiang District. All the 3 ç› in the factory area used solar led (semiconductor light-emitting diode) streetlights, and the whole factory area was like white.
According to Zhu Jiemin, chairman of Jiaoguang Group, the power of these 3 street lamps is 80 watts. The brightness is equivalent to the 400 watt high-pressure sodium lamp used on the road now. At the same time, due to the use of solar energy, there is no penny of energy consumption. It is estimated that if 3 street lamps use 400W high-pressure sodium lamps, they consume more than 2,600 kWh per year, and the cost is nearly 2,000 yuan. After switching to solar LEDs, it can reduce carbon dioxide by more than 2041 kilograms per year. The completion of the solar energy project has a demonstration significance for promoting the energy conservation and emission reduction of Jiaojiang District and lowering the green development of the carbon economy.
As an infinite renewable energy source, solar energy is gradually replacing the production and living of conventional energy in some cities. LED lighting is an internationally recognized new generation of solid-state lighting source. It has remarkable features such as energy saving, high efficiency, long life, environmental protection and no radiation. Its power consumption is only one tenth of that of incandescent lamps, and one third of fluorescent lamps. It has a life expectancy of 100,000 hours, 50 times the life of ordinary incandescent lamps and 20 times the life of fluorescent lamps. It is the fourth generation of lighting products after incandescent lamps, fluorescent lamps and gas discharge lamps.
"This solar panel can reach 115 watts." Zhu Jiemin pointed out that the company has just developed a 120 cm x 80 cm solar panel. This solar panel accumulates electricity for a day to drive 80 watts of LED (light-emitting diode) bulbs for 5 nights, with a maximum record of 17 nights, and the light remains bright, solving bad weather such as winter, cloudy, and snow. Solar cell lighting problems in the case.
The author saw in the exhibition room that the solar LED lights are composed of solar panels, control boxes, maintenance-free batteries, constant current drives, LED lights and street light poles. The working principle is that the solar panel made by the photovoltaic effect receives the solar radiation energy and is converted into electric energy output, and is stored in the battery through the charge and discharge controller. When the illumination is reduced at night, the open circuit voltage of the panel is about 4.5V, the battery Start to discharge the lamp cap.
"Now, the most critical issue is the issue of solar grid integration." Zhu Jiemin hopes that the government will issue relevant policies as soon as possible to solve the bottleneck problem of solar homes. It is reported that, in general, solar power generation is direct current. If it is to be integrated into the power grid, it needs to go through a series of procedures. The most critical one is to convert the solar radiation into direct current by using a converter, and then convert the direct current into electricity through the equipment. AC power, and finally convert the voltage into the grid.
How does the voltage change? How is the electricity price calculated after transmission to the grid? How much is the government subsidy? At present, these issues are subject to special research.
Can you boost your WiFi signal with outdoor 4G CPE?
When you travel or go to some remote areas, you may be annoyed by poor reception. Is there any way to get a strong WiFi router signal outdoors in a 4G LTE network? Very good, outdoor 4G CPE router would be a good choice!
What is an outdoor 4G CPE router?
An outdoor 4G CPE router differs from a Wifi-only router in that it needs to be connected to a fiber optic network. The 4G CPE WiFi router can pick up the carrier's 4G LTE network signal and convert it into broadband and Wi-Fi. Just plug in your SIM card with your data plan and enjoy a stable and reliable WiFi signal with family and friends. This Outdoor CPE can be used in harsh environments. If you install your router outside or near a window in an area with a weak 4G signal, your device can receive a better 4G signal.
Second, what are the characteristics of outdoor 4G CPE router?
1. Better network for ODU and IDU
4G CPE outdoor routers include an outdoor unit (ODU) and an indoor unit (IDU). Help your device receive the best outdoor cellular signal through the ODU, and connect to the indoor WiFi router through the network cable to experience better network speed. As shown in the figure below, an outdoor LTE CPE (ODU) is installed outdoors and connected to an indoor Wi-Fi router (IDU) via a network cable. The entire 4G device is powered by POE. This data will be transmitted over the same Ethernet cable, eliminating the need to connect the ODU to a power outlet.
2. High-speed multi-user available
The outdoor 4G CPE features a built-in 4G LTE modem and a 5dBi high-gain antenna. LTE CAT4, download speeds up to 150Mbps, WiFi speeds up to 300Mbps, can connect 32 users at the same time. The high-gain antenna of the outdoor 4G CPE router enables it to have higher power and stronger signal transmission and reception capabilities than mobile phones. Therefore, the CPE router can receive the signal. If your phone can't receive a signal in some areas. Sometimes you also use your phone as a hotspot to share Internet access with your friends, right? Similarly, this 4G LTE CPE router allows 32 users to connect to WiFi at the same time, allowing more users to connect and receive a better signal than a phone sharing hotspot. In addition, the IDU has four Lan ports and can be connected to the device through network cables, which is also a backup mode of the Internet.
3. Excellent outdoor performance and design
On the one hand, outdoor LTE CPE is waterproof, UV resistant and corrosion resistant. It can be used at -20℃~60℃ operating temperature. Therefore, it is ideal for outdoor deployment. On the other hand, there are a variety of installation methods. CPE can be mounted on Windows or walls by mounting brackets. It is also possible to attach it to the antenna mast. In addition, the signal strength is displayed through the LED indicator to facilitate users to find the best location to get a better 4G signal.
4. Support different frequency bands
Outdoor 4G CPE supports a variety of frequency bands, including LTE-FDD, LTE-TDD, 3G WCDMA, and 2G GSM network bands. Meet the needs of different frequency bands in different regions and make full use of network resources.
5. Convenient management of CPE
Start the Web browser to log in to the Web management page. You can configure and manage the CPE easily. The web management system supports Linux. Provides functions such as WebUI management, Telnet, SSH terminal system status monitoring, NTP client, synchronization between devices and the system clock network, and configuration file import and export.
6. Applicable to various application scenarios
CPE is designed to provide ISP or operator with 4G LTE outdoor wifi router to facilitate network connection, whether at home, or in enterprises and remote areas, to bring users a wonderful network experience.
All in all, an outdoor 4G CPE router is an excellent choice for connecting to the Internet in remote areas and places where the signal is weak, the wired network is unreliable, or there is a lack of reliable WiFi. It's worth deploying outdoor CPE in rural, coastal, boat, caravan, campsite and remote areas to enjoy the best network speeds and outdoor activities! It can even reduce complex cabling deployments for home networks without the need to install a wired fiber network.
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