Murata: Sensor + Wireless Control Intelligent Lighting Solution

At present, Europe and the United States are already using wireless technology to control intelligent lighting fixtures, such as street lights and interior lights. In China, LEDs are still in the stage of being accepted for use. Murata believes that 2014 and 2015 will be important two years, LED usage will increase globally, and wireless control plus sensors will be the mainstream technology and market demand trends.

The Chinese government has two priorities in the 12th Five-Year National Plan (2011-2015), one is to save energy and the other is to protect the environment. Since only LED lighting fixtures can meet these two priorities at the same time, LED lighting must be the future of the Chinese lighting market, and there are indications that LED lighting is also the mainstream demand trend of the countries in the world. For example, Japan also plans to increase its LED lighting market share to 50% by 2015 and South Korea by 30%.

Under the same brightness conditions, LED lamps have lower power than incandescent lamps and compact fluorescent lamps, and have a longer service life. In addition, LED lights can help reduce carbon dioxide emissions on the basis of energy efficiency, in line with China's overall plan to reduce carbon dioxide emissions. Moreover, in the current market, many chip manufacturers and lighting manufacturers have been able to provide related commercial products supporting LED lighting. Therefore, in 2014, LED lighting will have a large market share.

As the main supplier of MLCC capacitors and power modules on the market, Murata naturally will not ignore such a huge emerging market. Liao Guangwen, a senior market engineer in Murata, said: "Murata's current products for intelligent lighting systems include gateways, communication modules (ZigBee and Wi-Fi), power modules, etc. We hope to bring more convenience to users through intelligent lighting. Energy-saving life."

Figure title: Murata Senior Market Engineer Liao Guangwen

Most of today's LED lighting fixtures are controlled using a wired method. Through the wired mode, functions such as dimming, scene binding, and switching can be realized. This can also be said to be a kind of intelligence. However, if you can control it wirelessly, it will be very convenient for the user. Murata Liao Guangwen believes: "Using wireless control plus sensors will be the mainstream technology and market trend."

Today, smartphones and tablets have become popular. If you can use them to control lighting, it should give users more convenience. For example, before going home at night, you can turn on the lights first to make it easier to see the situation inside the house. Through wireless networking, you can also remotely see which lights are not turned off at home. You can also use the binding method to implement or set the timing control. Another benefit of wireless is that you don't have to worry about wiring. It is much more convenient to install.

As for the sensor, it is definitely a trend to use it with the lighting system. For example, when an infrared sensor is added, the light will remain off when no one is in the room. Once someone enters the room, the light will automatically turn on. You may not see the benefits in a short period of time, and you will see the advantages of energy saving and money saving for a long time. There is also technology to use the light sensor to detect how much light is in the room and feed it back to the gateway for dimming. Using such an intelligent system is not only convenient but also energy efficient.

According to the above scenario, Murata uses sensors and wireless technology to provide a simple solution for the LED lighting market, as shown in the following figure:

Of course, in the market, ZigBee is just one of the wireless protocols. Different protocols can be used depending on the needs of each user. The benefits of ZigBee are automatic networking and low power consumption. But because ZigBee doesn't appear on regular phones and computers, it requires a gateway. Some people also consider using the ISM frequency, but look at the frequency bands that each country can use.

Nowadays, such as Europe and the United States, wireless technology has been used to control intelligent lighting fixtures, such as street lights and interior lights. In China, LEDs are still being accepted for use. It is believed that 2014 and 2015 will be important for two years, and the share of LED lighting fixtures will increase globally. Because governments have decided to reduce the use of incandescent lamps. Some of the electronic components used in the LED ecosystem will also fall in price as the quantity begins.

In the past two years, different system integrators and luminaire manufacturers will provide and develop wireless control methods. Because, with the development of technology, the use of wireless control will bring convenience and intelligence to people's lives. Of course, wireless technology will only be considered a new technology in the past few years, and smart lighting will spread to more application scenarios in the future (3-5 years).

For example, to know the temperature outside, place the lamp near the window and identify the outside temperature according to the different color transitions. When someone approaches, the light can be converted to color to inform someone to enter. It is also possible that LED lighting will be considered for medical use in the future. OLED is also a technology that is now optimistic, but its use is not as extensive as LED. Every market must have certain rules, and when LEDs are widely used around the world, smart technology will follow. More LED applications will be implemented slowly. Liao Guangwen said: "LED intelligent lighting can be considered as the way to open the blue ocean of the lighting market."

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