2013年11月11日 星期一

Industrial automation systems are performing

The advantage of this level of modularity extends well beyond the initial deployment, however. In the longer term, upgrading the level of performance is simply a matter of replacing the processor module – not the entire subassembly. This saves money, and minimizes unforeseen impact on the way in which the module as a whole interacts with its surroundings.

In the locomotive example mentioned, the COM Express processor module can be upgraded without affecting the connection to the engine I/O residing on the carrier board – reducing costly and time-consuming recertification and testing. The modularity of COM Express gives a whole new meaning to “technology insertion.”

Because of this modularity advantage, COM Express can substantially extend the useful life of key elements within critical infrastructures – a valuable benefit for industrial applications such as oil and gas, energy, and transportation. This is especially true when it comes to leveraging commercial technologies – often referred to as Commercial Off-the-Shelf (COTS).

In the past, vendors often used special niche and proprietary components on their products. However, for many of these component vendors, the long-term commitment to ensuring the continuing competitiveness of these products – with its requirement for extensive investment in R&D – meant that such components often had relatively short useful lifetimes, and didn’t benefit from the support of well-funded programs to minimize the impact of obsolescence.

Commercial products, however – such as those from Intel and AMD – could be expected to benefit from a development road map that would see successive generations of products emerge into the market, each compatible with its predecessor and each capable of delivering new levels of performance. This constant “upping the game” presents a real opportunity for users of COM Express technology – and it is an opportunity that modular architectures leverage to the maximum, enabling the Internet of Things (IoT) to become a practicable reality.

refer to:http://industrial-embedded.com/articles/rugged-increasingly-connected-world/

2013年11月4日 星期一

Transitioning to ARP4754A for UAV software development using model-based design

With model-based design, UAV engineers develop and simulate system models comprised of hardware and software using block diagrams and state charts, as shown in Figures 1 and 2. They then automatically generate, deploy, and verify code on their embedded systems. With textual computation languages and block diagram model tools, one can generate code in C, C++, Verilog, and VHDL languages, enabling implementation on MCU, DSP[], FPGA[], and ASIC hardware. This lets system, software, and hardware engineers collaborate using the same tools and environment to develop, implement, and verify systems. Given their auto-nomous nature, UAV systems heavily employ closed-loop controls, making system modeling and closed-loop simulation, as shown in Figures 1 and 2, a natural fit.
Testing actual UAV systems via ground-controlled flight tests is expensive. A better way is to test early in the design process using desktop simulation and lab test benches. With model-based design, verification starts as soon as models are created and simulated for the first time. Tests cases based on high-level requirements formalize simulation testing. A common verification workflow is to reuse the simulation tests throughout model-based design as the model transitions from system model to software model to source code to executable object code using code generators and cross-compilers.
An in-the-loop testing strategy is often used as itemized below and summarized in Table 2:
1. Simulation test cases are derived and run on the model using Model-In-the-Loop (MIL) testing.
2. Source code is verified by compiling and executing it on a host computer using Software-In-the-Loop (SIL) testing.
3. Executable object code is verified by cross-compiling and executing it on the embedded processor or an instruction set simulator using Processor-In-the-Loop (PIL) testing.
4. Hardware implementation is verified by synthesizing HDL and executing it on an FPGA using FPGA-In-the-Loop (FIL) testing.
5. The embedded system is verified and validated using the original plant model using Hardware-In-the-Loop (HIL) testing.
A requirements-based test approach with test reuse for models and code is explicitly described in ARP4754A, DO-178C, and DO-331, the model-based design supplement to DO-178C.

refer to:
http://mil-embedded.com/articles/transitioning-do-178c-arp4754a-uav-using-model-based-design/

2013年10月28日 星期一

Asia claims almost half of Industrial automation sales


A recent report by IHS has shown that in 2012, capital expenditure on industrial automation equipment in Asia reached a total of $76.6bn, representing 46% of global investments in the sector.
Despite this established and rising trend, selling industrial automation equipment in Asia remains a clear business opportunity and one where many European providers are lagging behind.
Despite the first half of 2012 seeing an Asian market slowdown, with only a 3.7% growth in overall revenue from industrial automation equipment, the second half of the year showed definite improvement. The positive trend has continued in 2013, with the industrial automation sector set to grow by 6.2%. In such a dynamic market, getting new business can be both a business and technical challenge.
One of the key areas of opportunity is the power industry, where the booming consumer and industrial power markets in developing economies such as China and India have created rocketing demand. In China the per capita energy use is still a long way behind most of Western Europe, meaning the potential for growth is still huge. Without question, Asia represents a perfect storm of opportunities for European automation suppliers.
In order to help businesses better understand how to take advantage of the current climate and increase their industrial automation sales in Asia, particularly China, the CC-Link Partner Association (CLPA) is hosting a seminar entitled ‘Gateway to China’. The event will take place on 24th September at the Mitsubishi Electric Europe Tokyo Conference Suite in Hatfield.
For more information on the speakers and to book tickets for the event, visit the CLPA’s EventBrite page gateway-to-china.eventbrite.co.uk/.
In light of the sensitive current economic climate, many Asian companies are taking a more careful approach to investment – they are becoming more demanding towards their suppliers and making more enquiries before purchasing. Furthermore, according to IHS’ research, several Chinese manufacturers are currently developing products which are in direct competition with the ones provided by Western suppliers of industrial automation solutions. These are only a few of the obstacles facing European vendors who want to penetrate the Asian market to change the way they do business.
Flexibility and the ability to respond to very specific demands are becoming essential factors when dealing with the Asian market. Being able to offer technologies and products which are compatible with the needs of Asian clients is no longer an option, it’s a must.

- See more at: http://www.connectingindustry.com/automation/asia-claims-almost-half-of-automation-sales.aspx#sthash.4z4uCkA2.dpuf

refer to:http://www.connectingindustry.com/automation/asia-claims-almost-half-of-automation-sales.aspx

2013年10月22日 星期二

Does company size matters?



Does company size matter?Are you thinking of becoming an independent contractor? Our survey indicates that contractors make about $10,000 more per year than a direct employee. The average salary of a contractor (5.3% of respondents) is $116,636. That $10K may not be enough to cover the cost of insurance and other benefits available to direct employees, however.

If you look around your office or attend any embedded computer events, you will notice the sheer lack of females in the automation profession. This year the percentage of female respondents crept up slightly from 5.1% last year to 6.3%. Along with that gender gap comes a salary gap of about $11,283. The average salary for a male is $107,487, while the average salary for a female is $96,204.

There is a message here for employers. If you are paying less than the industry average, you could very likely lose your engineers. Based on data from industrial auto machines, a recruiting and contract staffing company based in Minnesota, there is a high demand for automation professionals, and high-quality candidates are hard to find. When companies do find good candidates, the candidates typically have multiple offers on the table. If your company employs high-quality professionals, pay them well, or you may lose them.

refer to: http://www.automation.com/factors-that-affect-your-salary-what-you-need-to-know

2013年10月1日 星期二

Tips for enhancing on-chip module safety


Self-Corrective Hardware
Chips can implement hardware monitors to detect failures. Faults like loss of lock in a PLL, sudden temperature change, change in clock frequencies, change in signal/power voltage levels, etc. can be monitored with such implementations. SoCs can intelligently control these faults and take self-corrective measures to safeguard users.

Redundant critical on-chip modules like processor, ISO, DMA controller, internal clock generator, and communications peripherals can improve reliability should a primary hardware module become non-functional while the vehicle is running. Such a system can have in-built error detection mechanisms and on-the-fly switching to redundant hardware to mitigate threats to passenger safety.
But this kind of redundant hardware architecture comes with the penalty of increased area and higher power management in silicon. Area penalties can be minimized by intelligent selection of which functions need to be duplicated in silicon. Power can be minimized by adopting power and clock gating in the redundant modules. Some  in-vehicle computers can be implemented in lock-step of each other, where primary and redundant modules process the same input. Mismatch in the output of the lock-step modules indicates a defect in either of the modules. The system can switch itself off or take appropriate safety measures to avoid any real-time failure. Redundant hardware should be placed quite far in silicon from the primary embedded systems to avoid tampering of both modules together.




refer to: http://www.edn.com/design/automotive/4421704/Safety---security-architecture-for-automotive-ICs

2013年9月17日 星期二

IT Technology for industrial controls applications

It is the author’s opinion that integration of the controls networking  and the IT network is inevitable. It became inevitable the moment the controls industry chose to use Ethernet as the medium with which to communicate data. The controls industry may choose to be dragged kicking and screaming into the modern automation  era, or it can gracefully embrace the change. Embracing means the controls industry would be able to leverage the myriad rich, existing technologies that have been proven foolproof in the IT world. To be dragged kicking and screaming into the modern communications era would do a terrible injustice to those who have worked diligently to bring it about. This could quite possibly add an entirely new facet to the fieldbus wars, which I hope have not been forgotten.
With that said, the controls world is going to be moving with an industry that has a definite consumer bias, with product development and release cycles of six months or less. In an industry where the average life expectancy of an automotive production line is eight years, it is impossible to expect the networking in an industrial setting to keep up with modern IT standards. Therefore, we turn our attention to the technologies that have existed the longest, with the most open standards and the very best support. These are the protocols we wish to use and keep, and this article highlights and explains some of these technologies.

refer to:
http://www.automation.com/leveraging-it-technology-for-industrial-controls-applications

2013年9月10日 星期二

Solutions for Intel latest endeavor


The following describes how Intel is enabling the transformation with its 4th generation Intel Core processor family based on the Haswell microarchitecture. Boasting up to 15 solutions higher performance, 2x faster image and signal processing, up to 60 percent faster graphics, newly flexible high-speed I/O, and enhanced security, this platform offers major upgrades over its predecessors. As we will see, the new processors deliver scalable, robust performance for applications ranging from machine vision to machine diagnosis, from building controls to operator panels, and even top floor administrative servers solutions. In addition, the platform’s new security and manageability features make it well suited for the highly connected, Internet of Things-enabled factories of the future.

Throughout history, new fanless embedded systems have transformed the manufacturing industry. From the invention of steam engines to the introduction of computerized controls, these technologies have led to enormous leaps in productivity and quality. Today we are at another turning point. The introduction of embedded systems and Internet of Things technology are enabling unprecedented data sharing and analysis, turning previously disconnected manufacturing systems into an efficient, highly responsive whole.

refer to: