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New Concept of China Instrument Network Instrumentation From July 19th to 21st, the fifth member conference of LoRa Union was held in the northern suburbs of Munich. The Hilton Hotel on the Isar River was held with many companies, institutions and engineers from many countries. Here, we discuss the latest developments in LoRa technology and showcase our own product applications. In just a few days of meetings, the rapid development of LoRa technology can not help but surprised the author, the rapid spread of application products, greatly promoted the construction of the Internet of things, let the author once again picked up that sci-fi Internet of things life, the heart is full of expectations !
Unstoppable new era of Internet of Things Google is the world’s most powerful Internet company, but Chairman Eric Schmidt claimed that the Internet is about to disappear and replaced by a highly personalized and interactive Internet of Things. This phoenix nirvana-like assertion, in addition to embodying the courage of Google to fear change, also enabled more people to realize the immense vitality and irresistible momentum of the Internet of Things.
Then the question has come. Since the Internet of Things is so outstanding, the concept of Internet of Things (IoT) has been proposed for many years in the world. Why is it that the speed of construction cannot be pushed forward? We all know that the core element of the popularity of the Internet is the rapid development of electronic communication technologies, and it is also true for the Internet of Things. The real progress is not to put forward a slogan, and then everyone smartly and intelligently goes right to the title and paints the existing things. It takes a real hard power and a real technological breakthrough to be able to make great strides. Improve the function and greatly reduce costs. The Internet of Things needs technical support in areas such as sensing, communications, and control. However, apparently for a long time, they have few commendable breakthroughs, and even some people have doubts about the feasibility of the Internet of Things. However, it is exciting that LoRa technology was born in this kind of doubt and it is undoubtedly worthy of the word "breakthrough"!
An embarrassing LoRa technology In 2013, Semtech Corporation released the SX127x series chips, marking the official announcement of its research and development of LoRa technology. LoRa is an abbreviation for Long Rang (remote). It mainly adopts the spread spectrum communication technology, but it is not direct. Sequential spread spectrum, instead of linear modulation using an unmodulated carrier, is characterized by ultra-low power consumption and ultra-long range, operating in open frequency bands. For example, the SX1278 chip that adapts to China's 470-510MHz band has a typical operating current of only 0.2uA in sleep mode, consumes approximately 10mA in receive mode, and consumes 20-120mA in transmit mode. The chip has ultra-high sensitivity, the minimum receive can reach -148dBm, and also support different spread factor between 6-12, because the same channel can demodulate signals of multiple different spread factor, so the LoRa star network has very High capacity. Maybe a lot of people are not interested in these parameters and cannot understand the magic of LoRa technology. So the popular point is that ordinary data transmitters based on LoRa technology can be used in two AA-powered batteries. Twenty kilometers of receiving gateways continue to send information and can work stably for more than 10 years.
There is no one-size-fits-all technology. Of course, LoRa technology cannot solve the problem of communication in the Internet of Things. Because of the modulation technology, LoRa devices can only transmit very low-rate information. Therefore, they plan to use the LoRa device to download movies. It is not realistic to have a video call. However, LPWAN (Low-Power Wide Area Network) is an important part of the Internet of Things. For example, sensors embedded in the construction of smart cities provide equipment for providing soil and environmental information to agriculture in a large area. They all require low power consumption and coverage. Wide range of low-cost solutions, LoRa can be described in this area, many parameters are far beyond other technical standards.
The most important thing is that, apart from various performance indicators, the decisive factor is the acceptance of the market. When other technologies are still in the research stage, LoRa technology has been fully commercialized, and various equipment has mushroomed. It emerged. Here we must mention the LoRa Alliance, the organizer of this conference. Many tech giants such as Cisco, IBM, Semtech, Microchip and STM are all members of the company. Promote long-distance, bi-directional communication, low-cost and low-power LoRa wide area network. Mr. Geoff Mulligan, chairman of LoRa Union, introduced the meeting. At the time of the first member meeting in March 2015, only 31 of its members were members. However, only 16 months have passed and the number of members has reached 368. More than ten times, it is enough to see the market's recognition of LoRa technology, and it also proves that LoRa's technology is very strong.
Development of LoRa Network in Germany
The organizer of this member meeting is the German Digimondo company, which is part of an Internet of Things subsidiary of the Eon Group, the largest power company in Europe. In the post-meeting conversation, Mr. Marcus Walena, president of the company, introduced to the writer that the mondo in the company name originates from Italian and means “the world.†As an IoT company, Digimondo is committed to establishing a “digital world†in Germany. †Give millions of items to life. All of its company's products and services are centered on LoRa technology. The founders and employees of the company are very much in agreement. LoRa, an inter-age technology, will quickly be popularized and quickly change the face of the Internet of Things. In the process, Germany cannot fall behind, and Digimondo cannot fall behind!
During the conference, Digimondo mainly presented to the participants the three achievements they achieved. The first is LoRa, the only network operator in Germany. They are working hard to complete the laying work. The company has completed construction of the LoRa network in 25 major German cities. Most of them are also tested for performance. In 2017, the entire German LoRa network will be realized. Coverage. Followed by Digimondo company developed its own network application system "firefly", customers can log in anytime, anywhere, and visually check all kinds of LoRa applications, such as energy meter, thermometer, positioning module, air detection equipment, etc., send real-time information.
Chinese companies get ahead of schedule
What makes the author even more gratified is that during the development of LoRa technology, our Chinese company not only did not absent, but instead made it through the door. At the exhibition site, we encountered many companies from the motherland. What is even more remarkable is that the application of LoRa equipment introduced in the third part of Digimondo company's flagship product, the LoRa power meter, actually came from Hangzhou, China, and was designed and produced by famous instrumentation company “Hua Li Technologyâ€.
Digimondo's product manager introduced to everyone on the conference site that they had achieved amazing results with the addition of an internal LoRa communication module on the basis of the existing ordinary energy meter. They were able to earn money and get a smart meter with excellent performance. Compared with other smart meters that use PLC and GPRS communication methods in the market, LoRa technology has demonstrated its superior strength, not only low cost, energy consumption negligible, but also very outstanding anti-interference ability, the key is very convenient for networking After the power meter is powered on, it can automatically access the LoRa network without any operation, and send out power information every minute. Their pilot results show that this is a true smart meter solution that truly meets customer needs and adapts to the market.
LoRa imagined the return of the conference. The thoughts and thoughts he had read were still LoRa. As a new technology, LoRa still has many details that need to be developed, and there are great potentials that need to be tapped. Conformance certification standards for LoRaWAN products have yet to be improved, and network entry detection technologies require more companies to develop designs. LoRa positioning technology uses three gateways to calculate the approximate position of the same LoRa device to calculate its approximate position. The algorithm still needs to be further matured. This application is expected to replace most power-consuming GPS modules in most cases. LoRa still has a lot of work to do, and expects more engineers and companies to invest in this field and accelerate the realization and popularization of LoRa industry so that people can enjoy the brilliant life brought by the Internet of Things as soon as possible. Of course, it is hoped that more figures will come from China during this period, stepping on the waves of the tide of technology, and letting the world see the technical strength of Chinese companies and the excellent quality made in China!
(Original title: LoRa, a ride in the Internet of Things technology)
Unstoppable new era of Internet of Things Google is the world’s most powerful Internet company, but Chairman Eric Schmidt claimed that the Internet is about to disappear and replaced by a highly personalized and interactive Internet of Things. This phoenix nirvana-like assertion, in addition to embodying the courage of Google to fear change, also enabled more people to realize the immense vitality and irresistible momentum of the Internet of Things.
Then the question has come. Since the Internet of Things is so outstanding, the concept of Internet of Things (IoT) has been proposed for many years in the world. Why is it that the speed of construction cannot be pushed forward? We all know that the core element of the popularity of the Internet is the rapid development of electronic communication technologies, and it is also true for the Internet of Things. The real progress is not to put forward a slogan, and then everyone smartly and intelligently goes right to the title and paints the existing things. It takes a real hard power and a real technological breakthrough to be able to make great strides. Improve the function and greatly reduce costs. The Internet of Things needs technical support in areas such as sensing, communications, and control. However, apparently for a long time, they have few commendable breakthroughs, and even some people have doubts about the feasibility of the Internet of Things. However, it is exciting that LoRa technology was born in this kind of doubt and it is undoubtedly worthy of the word "breakthrough"!
An embarrassing LoRa technology In 2013, Semtech Corporation released the SX127x series chips, marking the official announcement of its research and development of LoRa technology. LoRa is an abbreviation for Long Rang (remote). It mainly adopts the spread spectrum communication technology, but it is not direct. Sequential spread spectrum, instead of linear modulation using an unmodulated carrier, is characterized by ultra-low power consumption and ultra-long range, operating in open frequency bands. For example, the SX1278 chip that adapts to China's 470-510MHz band has a typical operating current of only 0.2uA in sleep mode, consumes approximately 10mA in receive mode, and consumes 20-120mA in transmit mode. The chip has ultra-high sensitivity, the minimum receive can reach -148dBm, and also support different spread factor between 6-12, because the same channel can demodulate signals of multiple different spread factor, so the LoRa star network has very High capacity. Maybe a lot of people are not interested in these parameters and cannot understand the magic of LoRa technology. So the popular point is that ordinary data transmitters based on LoRa technology can be used in two AA-powered batteries. Twenty kilometers of receiving gateways continue to send information and can work stably for more than 10 years.
There is no one-size-fits-all technology. Of course, LoRa technology cannot solve the problem of communication in the Internet of Things. Because of the modulation technology, LoRa devices can only transmit very low-rate information. Therefore, they plan to use the LoRa device to download movies. It is not realistic to have a video call. However, LPWAN (Low-Power Wide Area Network) is an important part of the Internet of Things. For example, sensors embedded in the construction of smart cities provide equipment for providing soil and environmental information to agriculture in a large area. They all require low power consumption and coverage. Wide range of low-cost solutions, LoRa can be described in this area, many parameters are far beyond other technical standards.
The most important thing is that, apart from various performance indicators, the decisive factor is the acceptance of the market. When other technologies are still in the research stage, LoRa technology has been fully commercialized, and various equipment has mushroomed. It emerged. Here we must mention the LoRa Alliance, the organizer of this conference. Many tech giants such as Cisco, IBM, Semtech, Microchip and STM are all members of the company. Promote long-distance, bi-directional communication, low-cost and low-power LoRa wide area network. Mr. Geoff Mulligan, chairman of LoRa Union, introduced the meeting. At the time of the first member meeting in March 2015, only 31 of its members were members. However, only 16 months have passed and the number of members has reached 368. More than ten times, it is enough to see the market's recognition of LoRa technology, and it also proves that LoRa's technology is very strong.
Development of LoRa Network in Germany
The organizer of this member meeting is the German Digimondo company, which is part of an Internet of Things subsidiary of the Eon Group, the largest power company in Europe. In the post-meeting conversation, Mr. Marcus Walena, president of the company, introduced to the writer that the mondo in the company name originates from Italian and means “the world.†As an IoT company, Digimondo is committed to establishing a “digital world†in Germany. †Give millions of items to life. All of its company's products and services are centered on LoRa technology. The founders and employees of the company are very much in agreement. LoRa, an inter-age technology, will quickly be popularized and quickly change the face of the Internet of Things. In the process, Germany cannot fall behind, and Digimondo cannot fall behind!
During the conference, Digimondo mainly presented to the participants the three achievements they achieved. The first is LoRa, the only network operator in Germany. They are working hard to complete the laying work. The company has completed construction of the LoRa network in 25 major German cities. Most of them are also tested for performance. In 2017, the entire German LoRa network will be realized. Coverage. Followed by Digimondo company developed its own network application system "firefly", customers can log in anytime, anywhere, and visually check all kinds of LoRa applications, such as energy meter, thermometer, positioning module, air detection equipment, etc., send real-time information.
Chinese companies get ahead of schedule
What makes the author even more gratified is that during the development of LoRa technology, our Chinese company not only did not absent, but instead made it through the door. At the exhibition site, we encountered many companies from the motherland. What is even more remarkable is that the application of LoRa equipment introduced in the third part of Digimondo company's flagship product, the LoRa power meter, actually came from Hangzhou, China, and was designed and produced by famous instrumentation company “Hua Li Technologyâ€.
Digimondo's product manager introduced to everyone on the conference site that they had achieved amazing results with the addition of an internal LoRa communication module on the basis of the existing ordinary energy meter. They were able to earn money and get a smart meter with excellent performance. Compared with other smart meters that use PLC and GPRS communication methods in the market, LoRa technology has demonstrated its superior strength, not only low cost, energy consumption negligible, but also very outstanding anti-interference ability, the key is very convenient for networking After the power meter is powered on, it can automatically access the LoRa network without any operation, and send out power information every minute. Their pilot results show that this is a true smart meter solution that truly meets customer needs and adapts to the market.
LoRa imagined the return of the conference. The thoughts and thoughts he had read were still LoRa. As a new technology, LoRa still has many details that need to be developed, and there are great potentials that need to be tapped. Conformance certification standards for LoRaWAN products have yet to be improved, and network entry detection technologies require more companies to develop designs. LoRa positioning technology uses three gateways to calculate the approximate position of the same LoRa device to calculate its approximate position. The algorithm still needs to be further matured. This application is expected to replace most power-consuming GPS modules in most cases. LoRa still has a lot of work to do, and expects more engineers and companies to invest in this field and accelerate the realization and popularization of LoRa industry so that people can enjoy the brilliant life brought by the Internet of Things as soon as possible. Of course, it is hoped that more figures will come from China during this period, stepping on the waves of the tide of technology, and letting the world see the technical strength of Chinese companies and the excellent quality made in China!
(Original title: LoRa, a ride in the Internet of Things technology)
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