Moxa Connection
 
July 2005
In this Issue
COVER STORIES PRODUCT APPLICATIONS MOXA NEWS

COVER STORIES

Green Product Announcement

Moxa is dedicated to helping create and maintain a safe and clean environment, and to this end, we are taking great care to ensure that the complete product—the box, packing material, plastic box handles, ink, and all other material used to process and ship our products—is environmentally safe and recyclable. We are gearing up to produce products that conform to both the WEEE and RoHS directives. For more information about WEEE and RoHS, please visit the green product section of our website at http://www.moxa.com/greenproduct.

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APPLICATIONS

"Intelligent" Vending Machines Improve Availability and Reliability

Introduction
Vending machines are one of those modern contrivances that add convenience to our already hectic lives. Whether it's pouring a cup of hot coffee while waiting to catch a flight in a busy airport, buying a cold soft drink at lunchtime, or grabbing a candy bar for a mid afternoon snack, we've all taken advantage of the time-saving convenience that vending machines have to offer. On the downside, however, most of us have also experienced the frustration of getting coffee that's too cold, soft drinks that are too hot, or those times when our favorite candy bar is in the "item not available" category. UC-7420, Moxa's miniature front-end computer for industrial device networking applications, gives vending machine manufacturers and maintainers the ability to stay one step ahead of the customer.

Programmable Means Customizable
One of the main advantages that Moxa's UC products provide is programmability. System designers can write custom C programs tailor-made to control the operation of the vending machine. For example, UC can be programmed to monitor temperatures and power status. If a thermometer reading is too hot, or too cold, or the power supply is interrupted, the maintenance person can be notified automatically by phone or e-mail so the problem can be fixed immediately. The program can also be used to monitor the quantities of items dispensed by the machine so that items running low can be replenished before they run out. The ability to monitor temperature and quantity helps to guarantee that customers get the items they want, when they want them.

Built to Last
In addition to the considerable cost reduction provided by Moxa's Universal Communicators, users also get a more reliable system that is designed for near zero-failure operation. Moxa's Universal Communicators are compact computers that have a built-in Linux OS, and to ensure easy installation, the interfaces are integrated onto a single PCB. The Intel IXP-422 CPU, which forms the brains of the Universal Communicator, generates almost no heat, ensuring that the no fan, no hard drive design provides reliable service for a much longer period of time.

Benefits of Using Moxa's Universal Communicator

  • No fan, no hard drive design for longer MTBF
  • CompactFlash slot for adding Gigabytes of storage space
  • Multiple connection options for greater networking versatility
  • Programmability gives system integrators infinite possibilities

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EDS-508 and EDS-SNMP OPC Server Make Subway Signal Control Systems More Stable

Subway No. 1 in Tianjin, China, has a total track length of just over 26 km, with almost 14 km running underground. The subway system includes 22 stations, one train-distribution center, one train storage area, and a distribution control center. The network system uses redundant and interference-free functions to guarantee the safety of the signal control system, and prevent accidents during emergency situations.

Eight out of 22 stations in the system are equipped with WOC signal collection devices, and four of these eight stations have two signal-link devices. WOC and signal-link devices are used for signal collection and on-site control, respectively. The highly reliable front-signal-link-devices must be connected in a safe and reliable network system to be able to communicate. In addition, the system needs devices with a wider bandwidth to achieve efficient communication and immediacy when collecting signals for distribution. The media redundancy, 260,000-hour MTBF, and 148800 pps forwarding and filtering rate of Moxa's EDS-508-SS-SC EtherDevice Switch can satisfy the critical requirements of this subway system.

EDS-508's excellent features, such as redundant Turbo Ring, Tagged VLAN, QoS, IGMP snooping, and its wide operating temperature range (-40 to 75°C), make the switch a reliable part of many automation applications.

Key benefits:

MOXA EtherDevice™ Switch EDS-508

  • Fast network redundant ring
  • Port Trunking, VLAN, QoS, IGMP Snooping for optimal network performance
  • -40 to 75°C operating temperature range
  • E-mail notification by exception
  • Easily integrated with EDS-SNMP OPC Server Pro

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Using MOXA Serial Boards to Protect the Environment

Currently, one of the hottest topics in many countries around the world is environmental protection. The situation is particularly critical for China because of the economic boom that began there more than a decade ago. The Chinese government is taking measures to ensure that manufacturers follow environmental guidelines, and has made environmental protection an important part of China's 5-year plan. Another major environmental issue for China is the task of providing citizens with an ample amount of clean water.

The demand for equipment used for environmental protection, and particularly for sewage and water treatment, is sure to experience a huge growth in the near future. For this reason, Moxa has established long-term relationships with manufacturers of environmental monitoring instruments, ground water treatment plants, and environmental monitoring control centers.

Environmental monitoring devices include air and water quality monitors. The typical air quality monitor is used to monitor the amount of pollution in the atmosphere. Water quality monitoring and analysis devices include PH controllers, and monitors for determining the chemical composition of pollutants in the water (e.g., chlorine and fluoride).

Moxa provides both 4-port (CP-104UL V2) and 8-port (CP-168U V2, CP-118U) serial boards to accommodate stations that use different numbers and types of environmental monitoring devices. The boards are used to receive data from monitoring devices, with the data transmitted through the serial board, and then on to industrial control devices for front-end data processing and analysis. Since the distance between stations could be large, and at some locations it may not be convenient to set up a network, a modem or GPRS device may be needed to transmit industrial control data back to the environmental monitoring device to achieve the goal of data integration management. In this way, it is possible to set up a real-time, efficient data transmission system.

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MOXA NEWS

Moxa Welcomes NextWarehouse, the Newest Device Networking Distributor of Moxa Products for the United States

Moxa Technologies would like to welcome its newest Device Networking Distributor, NextWarehouse. NextWarehouse will be selling Device Networking products, such as Serial Device Servers, Multiport Serial Boards, Embedded Device Servers, Media Converters, and more. NextWarehouse will provide coverage for the entire United States, and use its experience and large customer base to help Moxa Technologies attract future Device Networking customers.

NextWarehouse specializes in industrial computers and peripheral components. Established in 1995 as a reseller in Los Angeles, NextWarehouse has become one of the leading companies in the industry. NextWarehouse has the ability to deliver the best value while meeting on-demand needs throughout the United States. NextWarehouse represents hundreds of leading manufacturers of industrial computers. Their product line includes device networking and data acquisition tools, single board computers, field communication items, and much more. As a marketing company, they have developed strong relationships with both manufacturers and customers.

NextWarehouse's customer base encompasses federal government agencies, state and local governments, educational institutions, Fortune 500 companies, and value-added resellers. With over a decade of experience, NextWarehouse has identified and met the needs of many different customers. NextWarehouse operates on the belief that success is achieved through the customer's success. Moxa Technologies is proud to have NextWarehouse as a partner.

For more information on NextWarehouse, please visit the NextWarehouse website at http://www.NextWarehouse.com.

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Moxa's EDS-508 Industrial Ethernet Switch now available with Multimode ST option

Multimode ST, the most popular connector for multimode networks, is now availabile with Moxa's EDS-508 series of industrial Ethernet switches. The features of the multimode ST models are equivalent to those of SC models, ensuring good quality and reliability, and hassle-free operation for industrial automation applications. Long-haul transmission type is available as an option with EDS-508's multimode ST models.

ST models are available upon request. For more product details and ordering information, please visit Moxa's website at www.moxa.com/product/EDS-508.htm, or contact a Moxa sales representative directly.

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Moxa's 2005 Series of Intelligent Transportation System Forums to be Held in China and Taiwan

ITS (Intelligent Transportation Systems) is a major emphasis of modern transportation construction worldwide. Establishing an advanced, intelligent transportation system involves integrating data, video, and voice over IP networks to set up a management surveillance system. ITS helps engineers solve the many problems posed by modern transportation systems by providing real-time traffic flow information. However, the stability and reliability of network communication devices is a major concern.

Moxa is eager to share ITS know-how with traffic engineers at Moxa's "ITS Solution Forum 2005" in China (during August) and Taiwan (during September). In addition to speeches by expert lecturers, Moxa will present the direction that our development and application of the ITS market is taking. We will also present typical applications, and show why MOXA's communication products are suitable for use with ITS applications. MOXA would like to invite participants to discuss and share how to realize a one-net intelligent transportation system, and assist users in establishing a stable, reliable, yet economical networking solution.

*** The 2005 Moxa Solution Forum is a series of seminars that focus on the trend of using Industrial Ethernet technology in industry. During these forums, we cover specific market applications and solutions. Together with our local solution partners, we will share successful project experiences from customers, and demonstrate the latest Industrial Ethernet solutions and applications for vertical market development. ***

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Wireless Device Server Daily Winner Contest a Great Success

Moxa's Wireless Device Server Daily Winner Contest, which ran from May 1 to June 30, was a smashing success! Over the course of these two months, we received more than 450 applications, and gave away more than 40 NPort W2150 wireless device servers to people around the world. Click here to view the winner's list!

All in all, we received almost 200 entries from the United States, more than 150 from Europe and Africa, and more than 125 from Asia. Although the majority of the application ideas we received were from Industrial Automation, many of the entrants were also interested in Security, POS/Retail, Building Automation, Utilities, and Medical applications. As you can see, the convenience provided by serial to wireless device servers is making wireless a much sought after alternative to more traditional solutions.

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FEATURED PRODUCT

EDS-726 Series
Industrial 26-port Gigabit Ethernet Switch


EDS-726 Series

DID YOU KNOW?

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DID YOU KNOW?

-- by Tim Stemple

Did you know that the Virginia Tech "smart road" project, which was first conceived of almost 20 years ago, has resulted in the construction of a 2.2-mile (3.5-km) stretch of highway devoted exclusively to ITS (Intelligent Transportation System) research? I'm sure many of you are scratching your heads wondering what on earth a smart road is, and just why I would focus on Virginia Tech. In fact, I have to admit a certain amount of bias for this month's "Did you know?" topic—I graduated from Virginia Tech's Engineering Science and Mechanics Department back in 1998, and for a few years at least, I lived just off Nellie's Cave Road in the southeast part of Blacksburg, less than a mile from the then still incipient smart road.

According to the Virginia Department of Transportation's "Smart Road Facts," when the smart road is completed, it will continue to be used as a real-life laboratory for smart road research, but will also serve as a 5.7-mile (9-km) public roadway connecting Blacksburg to Interstate 81, making it the only test road to handle regular traffic.

One of the most interesting features of the Blacksburg smart road is that when conducting tests, engineers have the power to create different types of artificial precipitation—including rain, snow, and ice—to simulate hazardous driving conditions. The 75 towers used to create artificial precipitation can rotate a full 360° to compensate dynamically for changes in wind strength and direction.

VDOT expects the road to give rise to a whole slew of safety benefits, including improving visibility during foggy conditions, preventing multi-car accidents due to icy bridges, advances in snow plow and emergency vehicle technology, and an increase in vehicle safety. In fact, the smart road is actually more than just a 1.7-mile stretch of highway—the "at normal speed turnarounds" at each end of the road allow test vehicles to keep moving indefinitely. The Blacksburg smart road also includes a 2,000-foot long bridge that at a height of 175 feet (53.3 meters) makes it the tallest bridge in Virginia.

A wide range of data about road conditions and traffic flow can be recorded using more than 400 sensors that transmit data to the smart road's control center over fiber-optic cable. More to the point as far as smart "driving" is concerned is that future improvements to the smart road will include dynamic message signs and sensors located above the highway, as well as GPS sensors on the road to keep track of drivers' performance, and to be used as part of an automated control system.

One of the ultimate goals of any "smart road, smart car, smart driving" system is to create a safe and efficient autonomous driving environment in which all cars on the highway communicate via some type of wireless network.

"Vehicle platooning" is the term used to describe the smart driving arrangement that involves a small group of cars driving in formation, separated by only a few meters. A computerized control system handles steering, braking, and accelerating, so that the drivers can do other things. Vehicle platooning essentially turns the highway into a mass of remotely controlled "virtual trains."

Moxa's own interest in Intelligent Transportation Systems will culminate this year with a series of "ITS Solution Forum 2005" seminars. The first round of Moxa ITS seminars, to be held in Asia in the Fall, will feature talks by experts in the field, and provide detailed information about using Moxa's own products for ITS applications. For more information about these seminars, see the article Moxa's 2005 Series of Intelligent Transportation System Forums to be Held in China and Taiwan in this issue of Moxa Connection.

Additional References

  • Smart Cars
  • Vehicle Platooning
  • Virginia's Smart Road
  • Virginia Tech

    This common interest column is published each month in Moxa Connection. Click here to contact Tim by e-mail.

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