Fixed or mobile PC from the receiving client recharge regular batteries that collects readings remotely. The probe and the client may have mobile connections (Mobile wireless access using a modem to connect to a PC). Most of the tests were carried out view demo on a platform GPRS/ EDGE. In terms of radio recharge api provider access, transmission type is Up Link (UL) that starts from the mobile terminal to the network and Down Link (DL) in the opposite case.

 

 

In general, improvements are first network for the purposes Down Link (DL) to increase the available bandwidth. Enhanced Data Rates for GSM Evolution (EDGE) is a building type overlay GSM. Possible data rates at the physical level for DL are up to. For theoretical maximum is. Packet mode. After activation PDP Context request is accepted by the network to the mobile terminal, the user and PC's connected via a USB or Bluetooth connection can communicate over the Internet or other network subscribers based on recharge api provider IP assigned by the GGSN. 

 

At the other end station or client (depending on the situation, see Figure -) are connected to the Internet interface. Data acquisition was carried out using PCS- digital oscilloscope or simulated data (the demo mode) or actual measurement. The oscilloscope provides a number of samples per recharge regular batteries frame transmitted adjustable (buffer capacity, the default is) real or simulated signal internally. The two main applied data transmission rates are: sampling rate (adjustable value of to, samples/ s) applied to the measured signal and the rate at which the buffer is read. These two values must be correlated; read buffer should not be made until after the next storage in buffer- see formula () below.

 

 

Actual measurement signal oscilloscope simultaneously produce, samples stored in the buffer memory I/ O- first rate location stores the samples [Hz], the useful link second location full scale, the third location offset and other locations, to, the data acquired (cu bits/ sample scaled and centered). Sampling rate, SR and the number of recharge api provider readings (NOR) per second are: TCP transmission case, we are interested in particular Round-Trip Time (RTT) is measured from the time at which an IP packet is sent and when during which its corresponding confirmation is received.

 

This is the delay that might be perceived by recharge api provider an operator. In the case of UDP transmission, an important parameter in the study of the quality of service is the litter. It represents the variation interval of time between two successive sampling and has an effect on the human operator similar to when TCP's RTT. Before each measurement, data link is investigated with a bandwidth test and recharge regular batteries reliability (packet loss, delay) using a dedicated tool, (GUI) for measuring bandwidth TCP/ UDP maximum.