The difference between GPRS module and transparent wireless data transmission radio in use

dwzt

The difference between GPRS module and transparent wireless data transmission radio in use [Copy link]

       Comparing the two within the transmission distance range, GPRS transmission is not affected by distance, but only cares whether there is a signal locally. The wireless transparent transmission module is cheaper in terms of tariffs and is more stable for medium and short distance use. The schematic diagram of a point-to-multipoint communication system using a transparent wireless data transmission radio is shown in the figure below. When the master device sends data to the GPRS module, the GPRS module sends the signal to the GPRS network. The master device must specify the destination address of the data. Only in this way can the network in the figure above process and transmit this set of data. After the network transmits this set of data to the destination GPRS module, the destination GPRS module transmits this data to the connected slave device. Each transmission of the GPRS network is a point-to-point transmission method that must indicate the destination address.

bigbat

Is point-to-point useful? Is anyone still using it now that data traffic is cheap?

dwzt

bigbat posted on 2018-8-10 23:06 Is point-to-point useful? Traffic is cheap now, does anyone still use it?

This depends on the customer's environment. Mobile phones are very good and convenient, but they can't receive signals in the mountains and other places, and their anti-interference ability is not strong. So each has its own advantages, see how others use it.

bigbat

This incident reminds me of something that happened around the turn of the millennium. At that time, banks were connected to the Internet using "microwave" communications, which could sometimes reach a distance of forty to fifty kilometers. I haven't heard of that being used in recent years. Now, the environmental protection industry is considering satellite communications. I wonder what industry you were in at that time?

dwzt

bigbat posted on 2018-8-11 18:39 This reminds me of the millennium, when banks were connected to the Internet, they used "microwave" communications, which could sometimes reach 40 to 50 kilometers away. In recent years...

It's not that satellites are expensive. They are only suitable for super projects.

shakencity

When the GPRS module sends a signal to the GPRS network, the master device must specify the destination address of the data. Only in this way can the network in the figure above process and transmit this set of data. After the network transmits this set of data to the destination GPRS module, the destination GPRS module transmits this data to the connected slave device. Each transmission of the GPRS network is a point-to-point transmission method that must indicate the destination address.