Archives by Tag 'M2M tip'

Wireless M2M events in 2012 – free of charge yet

By Harald Naumann - Last updated: Friday, January 13, 2012

I am proud that I can offer a big bundle of events related to wireless in 2012 to you. Don´t miss the chance. Next events will be the free of charge webinar  about GNSS (GPS, Glonass, Galileo, Beidou, QZSS) on the 27th. of January and the LTE Seminar in Berlin 20.03.2012.

To the webinars every M2M [...]

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Liquid level meter with integrated GSM modem

By Harald Naumann - Last updated: Wednesday, December 21, 2011

This friendly support question liquid level meter with an integrated GSM modem reached me today
“I am not sure if this is the appropriate way to ask a technical question or if you have the time to answer this kind of questions atall, but I am desperate so I will just try.
I purchased a liquid level [...]

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GSM / GPS tracking in the shoes?

By Harald Naumann - Last updated: Monday, December 19, 2011

The whole world is constantly trying to publish the smallest GPS tracking device.
This morning a tracking device in the shoe was seen again. Apart from the fact that a shoe is a very inappropriate place for a GPS and GSM antenna, everyone needs more than one pair of shoes. In the bathtub I always pull [...]

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How to minimise IP traffic in cellular networks?

By Harald Naumann - Last updated: Monday, December 12, 2011

The questions related to IP traffic in cellular networks reached me.
Q: The other question about data transfer is about how cell phone
companies charge for data transmission. If I send a IP/UDP packet,
this will obviously be billed to me. But if somebody sends me an
IP/UDP packet will it be charged only if I receive it? Will [...]

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MQTT Q&A

By Harald Naumann - Last updated: Saturday, November 5, 2011

Personal MQTT Q&A by Andy Piper
Andy contact me with the text as below. Hopefully it will bring some light in the tunnel.
“Hi, actually traffic was up by even more than that on day 2 (I’m the site admin), and there was a similar but smaller spike back in August when the Facebook news [...]

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MQTT M2M protocol supported by Facebook

By Harald Naumann - Last updated: Monday, October 10, 2011

Facebook supports a M2M protocol MQTT for instant-messaging capabilities
The MQTT protocol was developed 10 years ago and is still not well known. MQTT has been developed as a joint project between IBM and an Italian company called Eurotech. MQTT is branded by high bandwidth efficiency and supports a wide range of wireless applications. It has [...]

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M2M device testing for antenna performance

By Harald Naumann - Last updated: Monday, August 29, 2011

With the endless array of applications and form factors for M2M devices, it’s very common that the device under test really shouldn’t or can’t be tested in the standard way.
If you plan a M2M device with external cellular antenna, then you will find a supplier for common antennas easy. If you plan a small device [...]

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How to use a wireless charger in your M2M application?

By Harald Naumann - Last updated: Tuesday, August 23, 2011

Wireless chargers for everybody

This new ICs are real amazing. With such a charging electronic it is easy to develop a waterproofed device like:

Wireless chargers for GSM/GPS Tracking of Alzheimer patients
Wireless chargers for GSM/GPS Tracking of motor bikes
Wireless chargers GSM/GPS Tracking  for yachtsmen or skiers
or just to pass ATEX approvals

The list of all members you [...]

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Python in M2M

By Harald Naumann - Last updated: Thursday, August 18, 2011

Programming language Python
Comparing Python with C++
Python code is typically 3-5 times shorter than equivalent Java code. However it is often 5-10 times shorter than equivalent C++ code. One Python programmer can finish in two months what two C++ programmers can’t complete in a year. Python shines as a glue language, used to combine components written [...]

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Do you recommend requesting delivery receipt of SMS for M2M applications?

By Harald Naumann - Last updated: Thursday, July 14, 2011

Yes and no.
It really depends on the application. A delivery of a SMS is 6 -10 seconds, up to hours and maybe never. In case of emergency SMS can be a risk. Worst case the GSM network is busy. A good example are public events like soccer games or outdoor music festivals in urban canyons. [...]

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