Many cold chain temperature monitoring devices support LBS positioning in their publicity or instructions. GPS positioning is believed to be understood by most people, but not necessarily for LBS positioning.

So, what is LBS positioning? If the GPS positioning is as advertised, the positioning accuracy is high, why do you need to have LBS positioning?

1. What is the LBS principle?

LBS base station positioning, English full known as Location Based Service, is generally referred to as LBS positioning. LBS positioning is a location-based service, which obtains the location information of mobile end users through telecommunications, mobile operators' radio communication networks (such as GSM network, CDMA network) or external positioning methods (such as GPS), and provides users with corresponding services under the support of geographic information system (GIS) platform. It is a value-added service, which is mostly used in mobile phone users.

As all the locator brochures say, the accuracy of GPS positioning is indeed high, but GPS positioning is affected by environmental signals. If the GPS positioning device is in a built-up place or a place with poor indoor signal, orin extreme weather, the positioning accuracy of cold chain temperature monitoring devices will be greatly reduced, and this time LBS will play its role.

2. Advantages of LBS positioning

LBS positioning is low-cost, convenient, and can be located based on existing base stations, completely unaffected by weather, tall buildings, and location. In theory, just calculate the three base station signal differences, you can determine the location of the locator. When the device goes to the place where GPS positioning is "not good", LBS positioning plays out its advantages and makes up for the defects of GPS positioning.

Of course, the accuracy of LBS positioning is affected by the density of positioning base stations. When the base station density is large, the error of LBS positioning is small. However, when the vehicle channel is remote in mountainous areas or the base station construction is poor, the error of LBS positioning will be relatively large.

3. Why do GPS positioning and LBS positioning exist at the same time?

Since GPS positioning can only receive signals in the area where the sky can be seen, other areas such as high-rises concentrated in the area, under the overpass, in the room can not receive GPS signals or the signal is very poor, plus GPS is easily affected by weather conditions, if the weather conditions are not good, the signal strength is affected and thus reduced. This interferes with the positioning effect of the car. Although the positioning accuracy of LBS is not as good as GPS, the range of its signal can reach is deeper than GPS, only a base station is required, and it can be located even in the room, and it will not be interfered with by weather conditions.

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