[Internet of Things Communication Technology] - Sigfox

summarize

April 2022 FranceSigfoxBy Singapore IoT OperatorUnaBizAcquired for 25 million euros . (UnaBiz isA Singapore-based IoT service provider specializing in thetransducersProduct design, manufacturing and data platform services covering a mix of Low Power Wide Area (LPWA) technologies such as Sigfox, LTE-M,...NB-IoTrespond in singingLoRato drive business growth).

By the end of 2021, more than 20 million IoT devices will have adopted Sigfox globally, while the total number of global IoT connections has reached 15 billion, and wide-area IoT device connections have exceeded 2 billion, so the 20 million share can be said to be negligible. The reason for Sigfox's predicament is that its business model, particularly its insistence on building and operating its network all by itself, puts a lot of constraints on its development, with Sigfox acting as both a standard setter and a network operator. Sigfox is both a standard setter and a network operator. It owns all the core technologies related to the construction of the network, and deploys the network by cooperating with telecom operators or building its own network, and profits from controlling the network and the cloud, from the core technologies to the construction of the network, and then the operation is a handful, which makes it difficult to form a synergy to promote this technology.

histories

Sigfox was founded in 2009 in the suburbs of Toulouse, southwestern France. Since its founding in 2009, the company has completed six rounds of financing, totaling about 300 million euros. In addition to many overseas financial investments, a number of operators, chip makers, utility companies and hardware and software giants have invested in it, Sigfox has a very strong lineup of shareholders.

• 2011 EUR 2 million investment from Elaia Partner
• In September 2012, it received 15 million euros of financing from Intel and five other organizations.
• March 2014 Obtained financing of 15 million euros from 7 companies, including Telefónica and Intel
• February 2015 Obtained 100 million euros in financing from 8 companies including SK Telecom, NTT Docomo, Telefonica and others.
• November 2016 secured €160 million in funding from Salesforce,Intel,IXO and 7 others
• May 2017 Financing from Malaysian Sovereign Fund for an undisclosed amount

In addition to strong investors, cooperative chip companies have also tended to be big names, and big names have been authorized to produce the chips in question.

1. 2014 with Silicon Labs
2. 2014 Collaboration with Atmel, Receipt of Soc chip ATA8520
3. Partnering with TI to build low-cost chips in 2015

But then it took a sharp turn for the worse, with internal power struggles reportedly starting to emerge in internal management from 2017, with several executives opting out of the power struggle and leaving, or being forced to leave due to a failed power struggle, followed by a failed IPO plan to meet its financial targets, and then the epidemic leading to a snowballing of the situation. During this time its competitors, Lora, NB-IoT and LTM have been developing and expanding rapidly on the hoof; this has allowed its market to be squeezed further.

It is clear that only good technology without the rhythm of the market, and can not survive(math.) genusIt's a real shame.The

Technical Principles

Sigfox's European frequency band is 868MHz, the U.S. band is 915MHz, and the frequency band range of other countries or regions is 902-928MHz.Sigfox uses ultra-narrow band modulation technology to transmit signals under the public frequency band of 192kHz spectral bandwidth, and the transmission width of each message is 100Hz, with high power density per unit of the frequency band, and strong anti-jamming ability.

Terminal devices send packets with Sigfox protocol, SIgfox base station receives the data and then passes it to SIgfox cloud, which then distributes the data to client servers to parse the application information. Its product features:Very low battery power consumptionThe life expectancy can be as long as 10 years;simple and easy to useConfiguration between base stations and devices is quick and easy;inexpensiveSIgfox optimizes every step of the process and reduces costs;User data is small, up to 12B; customers can easily use it with other communication programs, theHighly collaborativeThe

• Ultra-Narrow Band: Uses a 192kHz bandwidth for data transmission, with each message being 100Hz wide and transmitted at 100b/s or 600b/s data rate.
• Random access, data transmission between the network and the device is performed in an asynchronous manner, and the transmission rate of SIgfox is very low; the length of time for a message with a 12B payload to be delivered over the air is 2.08 seconds, a rate equivalent to 100b/s
• With collaborative reception, messages sent by the device can be received by any nearby base station and then delivered to the SIgfox cloud. This way its high quality reception guarantees that the message will be delivered to the cloud
• Short message protocol, SIgfox can send short messages, the size of the message is 0-12B, such as GPS coordinates (6B), temperature (2B), speed (1B), status information (1B)
• With bidirectional transmission, the downlink message is triggered by the end device and the cloud server will assist the client server in sending the downlink message.

Performance comparison of several technologies

In comparison.SigfoxThere are clear advantages in terms of transmission distance and number of connections.

supplier of chipset

• NXP OL2385SFOOX
• Silicon labs SI446x
• ON Semiconductor Manufacturing AX-SIP-SFEU
• Texas Instruments TI CC1120-CC1190
• Microchip ATA8520E

Module Suppliers

• pycom SIPy 14dB
• Innocomm SN10-11
• Digital China
• Great Wall Development

Related resources

1. SigLinker : A company in Shanghai that is relatively specialized in Sigfox
2. Huizhong Meter: A publicly traded company in Tangshan, Hebei, with core technology in ultrasonic metrology products
3. Sitwell (name): Expanded into overseas markets until 2016, then plowed ahead in the Chinese market
4. Ningbo Micro EnergyBased on 2.4G Zigbee/LoRa/ 2G/ 4G/NB-IoT/SigFox wireless network, it exchanges data with the gateway through the IoT-based MQTT-SN data transmission protocol and provides various sensor interfaces.
5. Dinghengtai, capital of China (Tw) Founded in 2009 in Beijing, focusing on Internet of Things, developed smart sorting bins based on Sigfox, wireless gas tank monitoring, intelligent sanitation platform, car parking monitoring and other products.
6. Official Resources-Related Transceivers
7. Official Information-Related SOC
8. Official Information-Related Modules
9. Official Information-Related Equipment
10. Official Information-Development Kits
11. Official Information - Platform
12. Official Information - Application Programs