diff --git a/AsbCloudApp/Services/WITS/IGtrService.cs b/AsbCloudApp/Services/WITS/IGtrService.cs
index c66831cf..012296b8 100644
--- a/AsbCloudApp/Services/WITS/IGtrService.cs
+++ b/AsbCloudApp/Services/WITS/IGtrService.cs
@@ -10,17 +10,16 @@ namespace AsbCloudApp.Services.WITS
     /// <summary>
     /// данные ГТИ
     /// </summary>
-    public interface IGtrService
-        
+    public interface IGtrRepository
     {
         /// <summary>
-        /// добавить/изменить данные (для панели бурильщика)
+        /// добавить данные (для панели бурильщика)
         /// </summary>
-        /// <param name="uid"></param>
-        /// <param name="dtos"></param>
+        /// <param name="idTelemetry"></param>
+        /// <param name="dto"></param>
         /// <param name="token"></param>
         /// <returns></returns>
-        Task<int> UpdateAsync(string uid, IEnumerable<WitsRecordDto> dtos, CancellationToken token);
+        Task SaveDataAsync(int idTelemetry, WitsRecordDto dto, CancellationToken token);
         
         /// <summary>
         /// получить  данные для клиента
diff --git a/AsbCloudInfrastructure/Repository/GtrWitsRepository.cs b/AsbCloudInfrastructure/Repository/GtrWitsRepository.cs
index 4e16f277..8fc98c07 100644
--- a/AsbCloudInfrastructure/Repository/GtrWitsRepository.cs
+++ b/AsbCloudInfrastructure/Repository/GtrWitsRepository.cs
@@ -2,6 +2,9 @@
 using AsbCloudApp.Services;
 using AsbCloudApp.Services.WITS;
 using AsbCloudDb.Model;
+using AsbCloudDb.Model.GTR;
+using Microsoft.EntityFrameworkCore;
+using Newtonsoft.Json;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -11,17 +14,19 @@ using System.Threading.Tasks;
 namespace AsbCloudInfrastructure.Repository
 {
 #nullable enable
-    public class GtrWitsRepository: IGtrService
-        
+    public class GtrWitsRepository<T> : IGtrRepository
+        where T : WitsItemBase<T>, ITelemetryData
     {
-
         private readonly IAsbCloudDbContext db;
         private readonly ITelemetryService telemetryService;
+        private readonly DbSet<T> dbset;
+        private static Random random = new Random((int)(DateTime.Now.Ticks % 0xFFFFFFFF));
 
         public GtrWitsRepository(
             IAsbCloudDbContext db,
             ITelemetryService telemetryService)
         {
+            dbset = db.Set<T>();
             this.db = db;
             this.telemetryService = telemetryService;
         }
@@ -57,9 +62,62 @@ namespace AsbCloudInfrastructure.Repository
 
 
 
-        public Task<int> UpdateAsync(string uid, IEnumerable<WitsRecordDto> dtos, CancellationToken token)
+        public async Task SaveDataAsync(int idTelemetry, WitsRecordDto dto, CancellationToken token)
         {
-            throw new NotImplementedException();
+            if (dto is null)
+                return;
+            var timezoneHours = telemetryService.GetTimezone(idTelemetry).Hours;
+            var entities = GetEntities(dto,idTelemetry,timezoneHours);
+            var dateMin = entities.Min(e => e.DateTime);
+            var dateMax = entities.Max(e => e.DateTime);
+            var existingEntities = await dbset
+                .Where(e => e.IdTelemetry == idTelemetry)
+                .Where(e => e.DateTime >= dateMin && e.DateTime <= dateMax)
+                .Select(e => e.DateTime)
+                .OrderBy(d => d)
+                .ToArrayAsync(token);
+            foreach (var entity in entities)
+            {
+                if (!existingEntities.Any(e => e == entity.DateTime))
+                {
+                    dbset.Add((T)entity);
+                }
+                else
+                {
+                    var dt = entity.DateTime;
+                    entity.DateTime = new DateTimeOffset(
+                        dt.Year,
+                        dt.Month,
+                        dt.Day,
+                        dt.Hour,
+                        dt.Minute,
+                        dt.Second,
+                        (dt.Millisecond + random.Next(1, 283)) % 1000,
+                        dt.Offset);
+                    dbset.Add((T)entity);
+                }
+            }
+            await db.SaveChangesAsync(token);
+        }
+
+        private static IEnumerable<WitsItemBase<T>> GetEntities(WitsRecordDto recordItems, int idTelemetry, double timezoneHours)
+        {            
+            var itemsCount = recordItems.Items.Count;
+            var entities = new List<WitsItemBase<T>>(itemsCount);
+           
+            foreach (var dtoItems in recordItems.Items)
+            {
+                var entityItems = new WitsItemBase<T>
+                {
+                    IdTelemetry = idTelemetry,
+                    DateTime = recordItems.Date.ToUtcDateTimeOffset(timezoneHours),
+                    IdRecord = recordItems.Id,
+                    IdItem = dtoItems.Key,
+                    Value = System.Text.Json.JsonSerializer.Deserialize<T>(dtoItems.Value.ToString())
+                };
+                entities.Add(entityItems);
+            }            
+            return entities;
         }
     }
 #nullable disable