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9 votes

GPS ground communications expensive (financially and power requirement)?

Your question is based in a fundamentally erroneous premise. Uplink communication to GPS satellites is not permitted, period. For public users and indeed most government ones, the system is downlink-...
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7 votes
Accepted

How reliable is location tracking of shipments?

I am not certain that this is an IoT question. I have the impression that those tracking devices would not get any GPS signal in shipping containers, trucks or buildings, where they would be most of ...
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6 votes
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Robust GPS + Internet - Best option?

For near-real time tracking of vehicles while out of cellular service range, Spot makes the Spot Trace, a vehicle tracker that uses satellite communication. It transmits only when the vehicle has ...
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6 votes

Calculate velocity and direction on microcontroller or on remote server?

As Bence says, it depends on the chip, and accuracy needed. But I'd like to add one thing: many GPSes output speed and heading (direction) in one of their NMEA sentences. If your GPS chip does this,...
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  • 246
5 votes

Calculate velocity and direction on microcontroller or on remote server?

It strongly depends on the MCU you have, but I think any microcontroller on the market could handle this task easily. Calculating velocity and direction from the coordinates is not a big deal. I think ...
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5 votes
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TrackR keep ringing on its own

There's another idea, also from trackr's support page. Again, it's also a feature that can be enabled/disabled, and that is "Device alert." Basically, it warns when your phone can no ...
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  • 4,612
5 votes

Is there an IoT device which has Bluetooth, GPS, a USB port and which can support a module for an alarm?

SIMCOM SIM808 module seems to meet the requirements for your device. Bluetooth: compliant with 3.0+EDR Specification for GPS Receiver type 22 tracking /66 acquisition -channel ...
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  • 2,560
5 votes
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GPS ground communications expensive (financially and power requirement)?

The closest thing to what you appear to be looking for is probably the Iridium satellite network. This system is used by tracking/data logging products that need to work pretty much everywhere (...
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  • 12k
5 votes
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Can GPS device report to other device without internet?

GPS devices are receive only, they have no way to send any data to anywhere else unless you explicitly include the capability. What you should use as back haul will entirely depend on how your device ...
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  • 12k
4 votes

Internet Connectivity at the sea

Sooner or later you'll run out of terrestrial connectivity. Cables wont go everywhere you want to go. There are two methods for providing digital comms at sea - VHF and Satellite. You'll be pushing it ...
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4 votes

Internet Connectivity at the sea

Water is a natural attenuator of electromagnetic waves, also you must take into account the obstruction of the Fresnel zones, knowing the frequency of the Wi-Fi wave and the distance of the link. One ...
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  • 181
4 votes

Calculate velocity and direction on microcontroller or on remote server?

As a person that created fleet management system processing data from devices with GPS receivers that currently serving two million units that consists from more then thousand of different types of ...
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  • 766
3 votes

TrackR keep ringing on its own

If this only happens when the phone and the trackr's are separated, according to trackr's support page, This separation alert is an intended functionality. If you would like to disable this feature ...
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  • 4,612
3 votes

Is there an IoT device which has Bluetooth, GPS, a USB port and which can support a module for an alarm?

Shameless plug In about a years time you can get an nRF91 + nRF52840 combo. LTE(CATM1 and NbIoT), GPS, BLE, USB, 802.15.4, etc, that uses a fraction of the power of current devices, and got plenty of ...
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3 votes

GPS Transmitter that works without Mobile Networks

If you are looking for a low-cost solution then I would recommend something like a teensy (cheap Arduino essentially with a lot of ram/flash) an XBee Series 2 63mW, an accelerometer, a GPS radio and a ...
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  • 269
2 votes
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How do I stop the Fitbit Surge from storing GPS data?

According to the FitBit community, the GPS is only enabled when you have turned on a tracking activity, example, walking, hiking, biking, etc. From the Fitbit Community: GPS is only when you are ...
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  • 4,612
2 votes

How do I stop the Fitbit Surge from storing GPS data?

This question is likely better asked of FitBit directly through their help site. Yes, your GPS data is synced to the cloud, because it is retrievable using the FitBit developer's API as described in ...
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2 votes

Smallest version of a GPS Receiver searched

I almost wonder if this is a duplicate of this question that @Aurora0001 linked. I would suggest the LightBug again. It has got an 8 day battery life, plus solar recharging, if you can leave it ...
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  • 4,612
2 votes
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GPS Transmitter that works without Mobile Networks

I suggest the Light Bug. It features: 8 day battery life Solar recharging Relatively small size (53 x 27 x 15mm) Transmission every 15 minutes Global satellite coverage (for GPS) Low weight (33 ...
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  • 4,612
2 votes

How reliable is location tracking of shipments?

You'd track on several levels. You track the truck with GPS, not the products. You track the individual shipments with zigbee or RFID. Those technologies are a lot cheaper. Thus, it's affordable to ...
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  • 8,095
2 votes

Solution for Outdoor Geolocation

Regarding question 1: There is a vast amount of GPS trackers (accuracy of a few meters) that are commercially available and that come with their own tracking server accessible via app or web-...
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  • 570
1 vote
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Advise on device to use when tracking a moving vehicle and pushing data to an API

Assuming the van as an ODB-2 port (most do) then you can just grab something like this. This assumes that you need something that reports in real-time, since you'd have to pay for a data plan. That ...
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1 vote

Advise on device to use when tracking a moving vehicle and pushing data to an API

Firstly, how are you going to power your device? If you have a modern radio, or even a cigarette lighter USB adapter, then you can easily power an EDSP32, Raspberry Pi Zero W, BBC:Microbit, Arduino, ...
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1 vote

Alternative way of developing own Hardware

Yes, this would be possible. Your product design consultancy should offer this as a recommendation. There are always 3 possibilities to be explored in product design: COTS (buy something that's ...
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1 vote

Sensors for a Validation Research

Heart Rate Sensor The heart rate sensor is based on photo phlethysmography based on blood absorbing light, this is low cost sensor with reasonable accuracy GPS Module GPS module has an accuracy of 2 -...
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1 vote

Is there any way to track GPS device without WiFi, Bluetooth, internet?

I am trying to develop a security gadget which can be wearable. Congratulations. This sounds like a good idea. The first thing to worry about is power. Wait! Actually, that is the second. The fist ...
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