Very good intro, thank you!

excellent presentation skills

Lookin' good, Mike!

Impressed with LoRaWAN. I would like to know whether 10 miles from equipment took for wireless to concentrator or from concentrator to LoRaw server to IoT

@MultiTechSystems

3 жыл бұрын

It is from equipment to concentrator(gateway) with visual line of sight in a good RF environment.

@ivyjitsingh518

3 жыл бұрын

@@MultiTechSystems impressive... Whether communication module used for equipment and in concentrator suitable for smart meters. I mean whether it is DLMS compliance for communication.

Good sales and paving... Was that a LoRa remote? Having a look at the data sheets you show, there seems to be a 53byte transfer for most. I also don't believe the 2 mile indoors!!! Dial up was 56kb (49) it worked back then and I understand that it's a "tiny pack" non consumers really. Ideal for data mining any minor send message, or we could say a pager or SMS(c). Having looked into the tech and being one (old) developers from 2005 era. It struggles with moving subjects so not ideal for moving objects. (C/R end only). It is common due to the spectrum use and echo issues which I believe is the basis on which LoRa forms it's wider range? You also mentioned below noise... But there are a few hundred channels, and the more propagation of these types the more noise will be added in the range. The same thing happened with WiFi. 4w standards dropped to .1w due to the flood of noise and uptake of the 'products' thus very much counter productive. WiFi was 1000ft out door, but could be tuned into hearing better, I see the gain is used for delivery. It is interesting how the biostats effect the devices and how that will work on a mass uptake. It would be interesting if your down maybe 10 years time make wave. So that the packet and route plotting can use more than one device to transmit the data to its destination, such as load balance on a cluster, and best effort and fastest route. I believe one of our guys from 2006 sold a how to to Cisco as this was one of the big issues when looking at routes and backhauls. Multi in multi out data transmission would be tremendous as your data rates could grow significantly. But as I'm sure you know , small data, means lots of packets, which means slow down and there has to be management (control and registered) to make this work. I see Mimo is already there for small scale. But this is much like a can-bus. Which LoRa technically is a wi-can. (Hyphen most certainly required) What Dev needs... Packet loss and resend, delays, bit rate... Back bone on and off device. PTP albitration.. MPTP-d. This would make the network redundant, carryout traffic shaping and load balance and also lower drops and speed up the network, with lower resend/losses. Its only small budget too. But you may need some of us old programmers and Devs as you new guys try to use all resources lol...

Hi, I would like to know which Network Server - Open Source to deploy on my own servers do you recommend? Thank you for your suggestion.

Can you share me slide overview ?

Zig bee in urban.

one mistake Bluetooth 4.0 is very very very good for battery . exceptional case your slide is misleading.

@mikebrown7366

5 жыл бұрын

BLE is okay on power consumption, but then it's for relatively low bandwidth too. Regular mode BT is not. When range us factored in, BLE still doesn't hold a candle to LoRa. Part of that is due to using 2.4GHz which is soaked up by the environment like a sponge. Sub GHz radio is where it's at for range at 20dBm power levels.

@guywhoknows

3 жыл бұрын

@@mikebrown7366 2mb/s on ble, but if you say to you data, you say power, and so on. The data rates in real world are lower that claimed by you/LoRa. Having a look at your data I would say 53bits/s would be normal. I know the claim is 125bits Obviously LoRa performs better in range than ble , but most claims and tests are LOS. I can connect around my house with it, with both. When I go out, I get some wan, not ble.

18:13 LTE NB IoT is better by link budget. Plus it is a global standard. LoRaWAN is a dead technology like mobile WiMAX

@mikebrown7366

5 жыл бұрын

Lorawan is a global standard that actually exists now, not someday, and if an area doesn't have good coverage, it's only hundreds of dollars to add a gateway, not millions. It also supports roaming handoff, which true nb-iot doesn't, unless your confusing it with M1. These LTE attempts to address battery powered, low bandwidth devices are an afterthought. They weren't in the original plans if the cellular carriers. They're only adding it because they want to sunset their 3G systems and have suddenly realized that there was a great reliance on the efficiency of SMS technology. Iow, the great providers of cellular were clueless on what a great many of their customers really needed out of 4G.

@whatcall

4 жыл бұрын

LoRa seems like a private NB-IoT and that means you don't have to pay the carrier providers.

@guywhoknows

3 жыл бұрын

@@whatcall from what I gather this is true. There are gateway partners. The problem LoRa has is that it's not mass useful. It can only send small data packets, but it can send them far and can gateway in and out of the web. Deployment of these tech are around £20. It's cheap but you won't be doing any web surfing with it. You could be gathering information from weather stations, reading power meters, using surveillance... It can also be used for turning things on or off. Knowing your alarm at home has gone off.. and small things, that the web can do.... So as you can see if a person has the web access they're not going to downgrade to LoRa. Effective speed and ear would put it at a tenth of dial up from 1999. For the average person all the way up to ISDN of the same era. Unfortunately as the web marketing of spam advertising by Google floods bandwidth, the use of flash, videos and such the HD content has blasted the web as it was to oblivion. Not saying that it didn't work way back, it was 'good' but I can't see a retrograde regression to old tech delivered in a new way. But seems to be a waste if we didn't. There is a lot of tech like this around. I've been testing so have others. But I'm looking from one of the early Devs eye's think of wrt-dd when that was in development, before Facebook... When small and fast was the lead consideration. You can get on this ride for around £6 or less. LoRa is four times more.. Either work well for home assist, general monitoring.