Smart Street Lights Drive Urban Internet of Things

Smart streetlights are currently growing businesses and are the direction of the smart city and the emerging Internet of Things. This new range of products ranges from simple to complex to almost invisible, and the total day may be everywhere.

The smart street light is basically a light pole consisting of an LED light, an LTE small honeycomb base station, an optional light control system, and a smart meter for monitoring the power usage of the utility pole. To date, Bill McShane, Philips' marketing manager for sustainable lighting, has deployed about 150 of these poles in Los Angeles and San Jose. McShane has been selling smart street lights, and he believes that thousands of such smart street lights will be sold in cities across the United States in the next three years.

Philips called these street lights "the first experience of a connected city." This product has many potential customers and suppliers. Although it has not yet developed a specific product blueprint, it has attracted a variety of delusions about its development potential. Only the honeycomb-style poles are in place when the city expands the city's Wi-Fi network and considers the widespread deployment of future types of sensor networks.


San Jose is deploying 50 smart light poles near Fairmont Hote (Source: Philips)

Philips' LED lighting department has come up with the idea of ​​a smart street light and has developed such a product. The Dutch company has established a global partnership with Ericsson as a subcontractor for LTE base stations within the pole. Other companies offer optional smart meters for cities like San Jose.

Wireless communication operators are the main customers who specify and pay Ericsson the cost of the base station and determine the location of the base station. They also paid for Philips, and then Philips negotiated with the city government to pay the installation fee and a small amount of renewal rent to the city.

For example, Los Angeles charges Philips about $10,000 for pole installations and $40 per year for each site. San Jose allowed Philips to charge wireless fees for ten years, and then ten years later to charge the wireless industry to San Jose.

Major but challenging business

The city establishes a simplified accreditation process for poles that are often owned and serviced by different entities. McShane said, "We managed to bring the parties together. This is a very interesting challenge, but when they all gathered together to negotiate, it became a powerful proposal."

In the end, every party can make a profit, McShane pointed out, "This is a win-win situation for residents, business units and cities."


Bill McShane
This business is not easy because of the different players and rules in each city. For example, in February 2011, San Jose drafted a 48-page streetlight design guide for the conversion to LED. This guide is full of tables and mathematical formulas on lighting brightness and quality issues, and mentions many national and international standards.

McShane's colleagues first launched a pilot program for poles around the world. The public utilities in Florida and cities such as Copenhagen are currently testing the concept, according to market research firm Navigant Research. The company has more than 13 million LED street lights in the world, and is expected to increase to 116 million by 2023.

It is said that Huawei (Huawei) in China has also developed prototypes and prototypes of smart street lamps, but has not yet officially released the products. It is expected that other companies will also emerge. "I think we are at the beginning of the popularity of smart streetlights," said Eric Woods, director of research at Navigant.

Although the actual figures are difficult to master, McShane estimates that there are 26 million street lights in the United States alone. Los Angeles said it has the second largest number, about 210,000 powered poles, of which more than 140,000 poles have been converted into LEDs. San Jose has about 63,000 light poles, of which about 20,000 are LED lights, and other light poles are being opened for bidding for any type of proposal.

Smart street lamp internal structure

The internal technology of the Philips Smart Light Pole is fairly simple and has a clear definition. But when the city's budget is tight but the Internet of Things is thought to be innovative, the future of such a pole will be unknown.

Today's smart light poles come in two configurations—high-power poles with three large Ericsson RU-11 or RU-12 60W LTE radios, and six 5-10W radios (covering about 1,000 feet short) Low power version of distance). In the high power version, the radio is mounted in the extension base of the pole, while the low power version of the radio is mounted inside the pole and the antenna is located in the radome near the LED.

Most poles have electronics for handling radio signals and digital baseband signals. The operator only uses the radios in the pole and connects them to the wireless access network in the cloud, and then the wireless access network handles the digital baseband task, said Sridhar Vadlamudi, head of Ericsson's North American business partner and alliance.

Los Angeles also requires a spare battery installed in the pole to prevent power outages. San Jose asked to install a smart meter to pay for electricity, but it is not needed in Los Angeles because Los Angeles has a set of agreements on electricity.

The number of poles installed so far has exceeded 50. The first pole was tested in July 2015 and was first officially implemented in September.

There is no clear blueprint for the development of smart street lamps. "We want to focus on LTE. Once it's successful, it's easy to integrate Wi-Fi or other features." Vadlamudi pointed out, "We are considering gunshots, pollution and traffic sensors, which are not currently deployed. These sensors are related to the application, but since we have enough room to do it."


A number of city officials, including the mayor of Los Angeles, and their first smart light pole installed at the end of last year (Source: City of LA)
Smart City considers sensor network

The concept of the city's IoT network is still in its infancy and has caused many thorny issues. Philips' McShane pointed out that "the capital expenditure for deploying the city's Internet of Things is very large, and we must know how the data flows to which center and how. Analysis --- and there are many public policies that must be developed at the same time."

San Jose Information Minister Vijay Sammeta agreed. He believes that smart cities have the characteristics of 'wild West', and now it is time to move from a display plan to a more difficult actual deployment.

Sammeta believes that "the smart city once again awakens the research and development thinking of the government, but these things take time, money and energy, so we must follow our priorities and proceed step by step."

For example, San Jose has just completed a one-year pilot program with Intel, which involves installing 10 air quality sensors in the city. He said, "We really want to look at other related plans... but I think there are many things to add to the lampposts."

So far, governments and suppliers have no idea what sensors the city needs, how to authenticate them, and how to build, pay and execute a central repository of multiple data sets. Multiple data sets are usually more interesting than just one type of information, but "when suppliers are more and more, data becomes more and more complex," Sammeta pointed out.


Some mathematical formulas in the San Jose LED Street Light Design Guide (Source: City of San Jose)

In a pilot program that demonstrates another approach, San Jose is making real-time information about the phase of the traffic signal and providing it to the car manufacturer. Car manufacturers will have the opportunity to create services that complement GPS maps, and cities and drivers can find ways to reduce traffic congestion.

Los Angeles plans to install 400 to 600 smart light poles and is considering what other sensors can be included. The city is also considering adding charging poles for electric vehicles to some poles.

"We are working with a number of manufacturers to discuss ideas such as temperature, carbon dioxide sensors, or even cameras such as seismic sensors for monitoring crime or parking." Ed Ebrahimian said, "I may only need 200 to 300 sensors because they don't have to be installed on each pole, about one every three to five blocks. - The good news is that we already have The available communication technology is in place."

Teri Killgore, a citizen innovation manager in San Jose, also agreed. "For smart city applications, this is the next important front line for development," she pointed out.

First steps - smart meter, LED monitor

The smart meter in the pole is the key to ensuring future expansion of the function, says Killos of San Jose. The local public utility committee has clearly defined what features can be installed on the streetlights to ensure that the third-party vendors receive electricity at the same low rates as the city.

San Jose's light poles currently use the existing external smart meter from the public utility company. But the local public utility PG&E is considering a version that can be mounted on a light pole to prevent damage by hackers.

Killgore said, "And, when we want to add environmental sensors or cameras, it's easier to install without having to re-route the circuit."


San Jose City currently has 63,000 street lights installed, two-thirds of which are open tendering for new LED plans (Source: City of San Jose)

Navigant research director Woods pointed out that "the commercial model of LED street light conversion based on energy saving concept has matured, but the benefits of network connection (monitoring traffic flow or air quality sensor, etc.) have not yet effectively laid the foundation, more complicated is often Have to involve multiple city departments."

"Standards are critical to everything from lighting fixtures to communication networks," Woods said. "The industry has made some progress a few months ago, but it’s more interesting to see what’s going on. What are the results of the Smart City Standards Development Plan – they are also determining the needs of the city to some extent while developing relevant technical standards.

Woods said, "Some city managers are still cautious about using advanced lighting control technologies, such as active dimming, to avoid being considered to be reducing the safety of urban roads."

Despite this, Ebrahimian in Los Angeles is still enthusiastic about the remote monitoring of LED street lights. Los Angeles is currently preparing to install a second generation product with embedded GPS.

"In our office, we can choose the cellular radio signal of the pole and give it location information -- if we have to move it later, no problem -- when the light goes out, we will I can know," he said.

Synchronous development of Wi-Fi plans

While Philips is helping operators build their cellular wireless infrastructure, Los Angeles and San Jose also expand Wi-Fi networks in the city.

Los Angeles hopes to identify the contractor in March to build a network of approximately 469 square miles across the city. The goal of this program is to connect residents who are estimated to be more than 30% lacking family broadband.

Los Angeles Information Director Ted Ross revealed that Los Angeles City decided not to participate in the business of owning and executing the city's network. Instead, it allows private suppliers to access city assets (such as streetlights and fiber links) through open tenders, as long as they can mix and offer free and paid services at speeds up to Gbps.

The city is currently evaluating three proposals, each of which is intended to connect the entire city. Los Angeles requires all proposals to be compatible with current 802.11g/n devices, and recommends that bidders consider support for cellular wireless networks, future LTE-Unlicensed in the 700MHz and 900MHz bands, and features such as .11af and .11ah.

San Jose expanded its free urban Wi-Fi network in 2014, including the conference center and airport, and using the .11n and .11ac devices from Ruckus Wireless to achieve transmission rates of 10 to 20 Mbits/s.

Next year, Sammeta said, "We want to upgrade to version 2.0 and expand the downtown area to cover major parks and new high court buildings. We also look forward to opportunities to provide location services.

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