Tracking

Vehicle location and speed data. Where an asset went, where it stopped and how long it was there.

Telematics

Data provided by the vehicles computer network and sensors (excluding engine data). This includes RPMs, accelerometer data for jack rabbit starts, harsh breaking, and reckless driving. It is the data used in accidents. Read more

Engine Diagnostics

Data transmitted by the engine through the OBD or J-Bus port generally consisting of fault codes and status data. There is a wide range of data available and GPS companies claim to offer these if they provide one data point out of several hundred. Ask good questions.

GPS Tracker comparison needs to include installation considerations. There are essentially two types of installation used today; 3-wire and plug and play. The 3-wire installation is considered more reliable but it isn’t if the plug-and-play installation is done right with a Y-harness. View more on installations. 3-wire installations can be done on small to mid-size fleet trucks by most anyone that can install a car stereo. On bigger trucks and equipment it is best to use a trained installer or mechanic. Learning to install and troubleshoot the technology can save your operation a lot of time and money.

Tampering has been an issue for over 16 years. Tampering occurs with plug-and-plan (P&P) and 3-wire devices about equally. OBD devices that are installed without a Y-harness (moves GPS into the dash) are the most likely to be tampered with. Companies that sell devices requiring 3-wire installs will tell you OBD devices are always an issue. We sell both and the tamper rate is about the same. Tampering stops when you put your foot down. Read more about introducing GPS trackers to employees.

Several equipment considerations such as backup batteries and communication networks are discussed in other areas of this blog. GPS tracker comparisons should also include details of the physical design and construction of the GPS device itself.

First, all GPS trackers are not made equal. Significantly more engineering goes into some devices like the Geotab GO device. Other GPS units are almost “dumb” in comparison and everything else is in between. We sell them all so we are communicating facts as we know them, not opinions.

GPS devices vary in construction quality. Some have thinner plastics and others more robust internal components. A good GPS chip set means faster acquisition time from a cold start and more accurate coordinates in tough environmental conditions. Some devices do well in heat where others shut down in the Arizona sun. Ask for the technical specification sheet and the warranty on the device.

Warranty Considerations

If you think about GPS trackers like a cell phone you will be able to easily understand the general conditions. In short, most have a limited warranty period if you are not on a perpetual lease or rental. Second, if you break it you buy it. If it breaks, you keep paying for the service until fixed. If it fails due to manufacturing the device is replaced and you are responsible for the service cost to swap the unit.

Backup Battery Size and Type

Lithium ion batteries are the only real choice for a battery due to durability and long-life. The size of the battery in milliamps determines how long the battery will last based on the draw from the GPS unit when asleep and when it wakes to transmit without constant power. Since batteries don’t last forever be sure the device will use off the shelf batteries to keep your cost down. Having to special order custom batteries drives up the operational cost. If you can replace the batteries you will save big money on service work.

Electronic Logging Device (ELD for FMSCA compliance)

ELD is a big deal which is coming at certain industries fast and furious. Selecting the right GPS tracker means you will also get ELD options, if and when needed. Those fleets not yet AOBRD compliant by December 17 2019 will be in violation and taken out of service.

Read the full 126-page ruling here.

Dispatching

Dispatching is the process of sending stop or route data to a driver. Most ELD devices will offer some type of dispatching as an additional service. If you need both getting a GPS tracker that offers both will be significantly more convenient than two systems, which aren’t integrated, from two vendors.

There are really two types of communication technology used for GPS trackers – satellite and cellular. Don’t confuse GPS satellite with communication satellites. GPS satellites broadcast a radio wave like an FM radio station and you cannot “talk” back to it. Cellular and satellite communication generally talks 2-ways but satellites can be 1-way.

Most GPS trackers use cellular networks to move GPS and other data from the vehicle, to a cell tower, to a server, to the Internet. Because of the low cost, most fleet operators use cellular. Understanding the carrier used and the coverage footprint will enable you to know when you will receive “live” tracking data. Cellular is also more reliable because it can communicate with the towers more easily due to the radio frequency used.

Satellite communication is more of a specialty technology used when assets are operating in very remote areas where cellular service is not an option. Communication satellite signals do not penetrate objects such as trees or buildings and costs significantly more than cellular. Satellite systems also manage battery power differently which leads to less detailed track data.

Cellular networks generally use GSM or CDMA technology. Verizon and Sprint use CDMA and are generally being phased out and replaced by 4G or LTE service which also SIM cards. GSM is the international standard and is easily identified by a SIM card. SIM cards offer some flexibility but you cannot take a GPS device from one vendor and use it on another vendors website.

In any GPS Tracker comparison, understanding the relationship is important to sort out the information from various sales reps. Unfortunately, most sales reps in call centers don’t understand these concepts so you will have to prompt them to explain each in detail so you know what you are getting.

Log Rate

The frequency which the GPS tracker logs the position of the asset. This varies from a few seconds to once per day.

Update Rate

The rate at which the log data collected is transmitted to a cellular or satellite communication tower.

Refresh Rate

The rate at which the website refreshes and displays newly received log data.

GPS Tracker comparison may also iclude aspects of how the data generated can be integrated. Integration refers to the sharing or movement of data between applications, databases or services in order to increase the overall use and value of data already paid for.

If you have a need to utilize the GPS tracker data in other areas you want to be sure the GPS vendor offers APIs. APIs are an industry standard method of moving data via the Internet in a secure manner.

Integration can also be accomplished through add ins that are installed in your user interface. Camera video can be viewed alongside the gps tracking data on the map for instance.

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