/// <summary>
        /// Lytter 1000 gange i sekundet om der kommer data ind. Kommer der data ind, returneres en liste til præstationslaget. Her modtages i bytes, det bliver decoded med ASCII og herefter deserialiseret.
        /// </summary>
        /// <returns>
        /// Liste bliver retuneret.
        /// </returns>
        public List <DTO_Measurement> RecieveDataPoints()
        {
            string data;

            byte[] bytes;
            measurements = new List <DTO_Measurement>();


            while (true)
            {
                try
                {
                    bytes = listener.Receive(ref groupEP);
                    data  = Encoding.ASCII.GetString(bytes, 0, bytes.Length);

                    var measurementdata = JsonConvert.DeserializeObject <List <DTO_Measurement> >(data);

                    local.SaveMeasurement(measurementdata[0].SocSecNB, measurementdata[0].mmHg, measurementdata[0].Tid, measurementdata[0].HighSys,
                                          measurementdata[0].LowSys, measurementdata[0].HighDia, measurementdata[0].LowDia,
                                          measurementdata[0].HighMean, measurementdata[0].LowMean, measurementdata[0].CalculatedSys,
                                          measurementdata[0].CalculatedDia, measurementdata[0].CalculatedMean, measurementdata[0].CalculatedPulse,
                                          measurementdata[0].Batterystatus);
                    return(measurementdata);
                }
                catch (InvalidOperationException)
                {
                    return(null);
                }
            }
        }