diff --git a/src/main/java/ru/ulstu/conference/controller/ConferenceController.java b/src/main/java/ru/ulstu/conference/controller/ConferenceController.java
index 6afa73e..01eac3b 100644
--- a/src/main/java/ru/ulstu/conference/controller/ConferenceController.java
+++ b/src/main/java/ru/ulstu/conference/controller/ConferenceController.java
@@ -21,7 +21,6 @@ import springfox.documentation.annotations.ApiIgnore;
 import javax.validation.Valid;
 import java.io.IOException;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Calendar;
 import java.util.List;
 import java.util.stream.Collectors;
@@ -58,26 +57,8 @@ public class ConferenceController {
     @GetMapping("/dashboard")
     public void getDashboard(ModelMap modelMap) {
         modelMap.put("conferences", conferenceService.findAllActiveDto());
-        //first, add the regional sales
-        Integer northeastSales = 17089;
-        Integer westSales = 10603;
-        Integer midwestSales = 5223;
-        Integer southSales = 10111;
-
-        modelMap.addAttribute("northeastSales", northeastSales);
-        modelMap.addAttribute("southSales", southSales);
-        modelMap.addAttribute("midwestSales", midwestSales);
-        modelMap.addAttribute("westSales", westSales);
-
-        //now add sales by lure type
-        List<Integer> inshoreSales = Arrays.asList(4074, 3455, 4112);
-        List<Integer> nearshoreSales = Arrays.asList(3222, 3011, 3788);
-        List<Integer> offshoreSales = Arrays.asList(7811, 7098, 6455);
-
-        modelMap.addAttribute("inshoreSales", inshoreSales);
-        modelMap.addAttribute("nearshoreSales", nearshoreSales);
-        modelMap.addAttribute("offshoreSales", offshoreSales);
 
+        conferenceService.setChartData(modelMap); // example
     }
 
     @GetMapping("/conference")
@@ -145,6 +126,15 @@ public class ConferenceController {
         return CONFERENCE_PAGE;
     }
 
+    @PostMapping(value = "/conference", params = "ping")
+    public String ping(@Valid ConferenceDto conferenceDto, Errors errors) throws IOException {
+        if (errors.hasErrors()) {
+            return CONFERENCE_PAGE;
+        }
+        conferenceService.ping(conferenceDto);
+        return CONFERENCE_PAGE;
+    }
+
     @ModelAttribute("allParticipation")
     public List<ConferenceUser.Participation> getAllParticipation() {
         return conferenceService.getAllParticipations();
diff --git a/src/main/java/ru/ulstu/conference/model/Conference.java b/src/main/java/ru/ulstu/conference/model/Conference.java
index e252e4d..6221b64 100644
--- a/src/main/java/ru/ulstu/conference/model/Conference.java
+++ b/src/main/java/ru/ulstu/conference/model/Conference.java
@@ -35,7 +35,7 @@ public class Conference extends BaseEntity {
 
     private String url;
 
-    private int ping;
+    private int ping = 0;
 
     @Column(name = "begin_date")
     @Temporal(TemporalType.TIMESTAMP)
diff --git a/src/main/java/ru/ulstu/conference/service/ConferenceService.java b/src/main/java/ru/ulstu/conference/service/ConferenceService.java
index e5ce29f..0287e31 100644
--- a/src/main/java/ru/ulstu/conference/service/ConferenceService.java
+++ b/src/main/java/ru/ulstu/conference/service/ConferenceService.java
@@ -4,6 +4,7 @@ import org.apache.commons.lang3.StringUtils;
 import org.springframework.data.domain.Sort;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
+import org.springframework.ui.ModelMap;
 import ru.ulstu.conference.model.Conference;
 import ru.ulstu.conference.model.ConferenceDto;
 import ru.ulstu.conference.model.ConferenceFilterDto;
@@ -12,6 +13,7 @@ import ru.ulstu.conference.repository.ConferenceRepository;
 import ru.ulstu.deadline.service.DeadlineService;
 import ru.ulstu.paper.model.Paper;
 import ru.ulstu.paper.service.PaperService;
+import ru.ulstu.ping.service.PingService;
 import ru.ulstu.user.model.User;
 import ru.ulstu.user.service.UserService;
 
@@ -33,17 +35,20 @@ public class ConferenceService {
     private final DeadlineService deadlineService;
     private final PaperService paperService;
     private final UserService userService;
+    private final PingService pingService;
 
     public ConferenceService(ConferenceRepository conferenceRepository,
                              ConferenceUserService conferenceUserService,
                              DeadlineService deadlineService,
                              PaperService paperService,
-                             UserService userService) {
+                             UserService userService,
+                             PingService pingService) {
         this.conferenceRepository = conferenceRepository;
         this.conferenceUserService = conferenceUserService;
         this.deadlineService = deadlineService;
         this.paperService = paperService;
         this.userService = userService;
+        this.pingService = pingService;
     }
 
     public ConferenceDto getExistConferenceById(Integer id) {
@@ -141,7 +146,8 @@ public class ConferenceService {
         conference.setTitle(conferenceDto.getTitle());
         conference.setDescription(conferenceDto.getDescription());
         conference.setUrl(conferenceDto.getUrl());
-        conference.setPing(0);
+        Integer pingCount = conferenceDto.getPing() - conference.getPing(); // for notification
+        conference.setPing(conference.getPing());
         conference.setBeginDate(conferenceDto.getBeginDate());
         conference.setEndDate(conferenceDto.getEndDate());
         conference.setPapers(conferenceDto.getPapers());
@@ -173,4 +179,35 @@ public class ConferenceService {
     public List<Conference> findAllActive() {
         return conferenceRepository.findAllActive(new Date());
     }
+
+    public void ping(ConferenceDto conferenceDto) throws IOException {
+        pingService.addPing(findOne(conferenceDto.getId()));
+//        conferenceDto.setPing(conferenceDto.getPing() + 1);
+    }
+
+    public Conference findOne(Integer conferenceId) {
+        return conferenceRepository.findOne(conferenceId);
+    }
+
+    public void setChartData(ModelMap modelMap) {
+        //first, add the regional sales
+        Integer northeastSales = 17089;
+        Integer westSales = 10603;
+        Integer midwestSales = 5223;
+        Integer southSales = 10111;
+
+        modelMap.addAttribute("northeastSales", northeastSales);
+        modelMap.addAttribute("southSales", southSales);
+        modelMap.addAttribute("midwestSales", midwestSales);
+        modelMap.addAttribute("westSales", westSales);
+
+        //now add sales by lure type
+        List<Integer> inshoreSales = Arrays.asList(4074, 3455, 4112);
+        List<Integer> nearshoreSales = Arrays.asList(3222, 3011, 3788);
+        List<Integer> offshoreSales = Arrays.asList(7811, 7098, 6455);
+
+        modelMap.addAttribute("inshoreSales", inshoreSales);
+        modelMap.addAttribute("nearshoreSales", nearshoreSales);
+        modelMap.addAttribute("offshoreSales", offshoreSales);
+    }
 }
diff --git a/src/main/java/ru/ulstu/ping/model/Ping.java b/src/main/java/ru/ulstu/ping/model/Ping.java
index d3fea2b..5ab0860 100644
--- a/src/main/java/ru/ulstu/ping/model/Ping.java
+++ b/src/main/java/ru/ulstu/ping/model/Ping.java
@@ -1,7 +1,9 @@
 package ru.ulstu.ping.model;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
+import com.sun.istack.internal.Nullable;
 import org.springframework.format.annotation.DateTimeFormat;
+import ru.ulstu.conference.model.Conference;
 import ru.ulstu.core.model.BaseEntity;
 import ru.ulstu.user.model.User;
 
@@ -24,6 +26,11 @@ public class Ping extends BaseEntity {
     @JoinColumn(name = "users_id")
     private User user;
 
+    @Nullable
+    @ManyToOne(optional = false)
+    @JoinColumn(name = "conference_id")
+    private Conference conference;
+
     public Ping() {
     }
 
@@ -34,10 +41,12 @@ public class Ping extends BaseEntity {
 
     public Ping(@JsonProperty("id") Integer id,
                 @JsonProperty("date") Date date,
-                @JsonProperty("user") User user) {
+                @JsonProperty("user") User user,
+                @JsonProperty("conference") Conference conference) {
         setId(id);
         this.date = date;
         this.user = user;
+        this.conference = conference;
     }
 
     public Date getDate() {
@@ -55,4 +64,12 @@ public class Ping extends BaseEntity {
     public void setUser(User user) {
         this.user = user;
     }
+
+    public Conference getConference() {
+        return conference;
+    }
+
+    public void setConference(Conference conference) {
+        this.conference = conference;
+    }
 }
diff --git a/src/main/java/ru/ulstu/ping/service/PingService.java b/src/main/java/ru/ulstu/ping/service/PingService.java
index 07f108a..ff0d249 100644
--- a/src/main/java/ru/ulstu/ping/service/PingService.java
+++ b/src/main/java/ru/ulstu/ping/service/PingService.java
@@ -1,13 +1,30 @@
 package ru.ulstu.ping.service;
 
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import ru.ulstu.conference.model.Conference;
+import ru.ulstu.ping.model.Ping;
 import ru.ulstu.ping.repository.PingRepository;
+import ru.ulstu.user.service.UserService;
+
+import java.io.IOException;
+import java.util.Date;
 
 @Service
 public class PingService {
     private final PingRepository pingRepository;
+    private final UserService userService;
 
-    public PingService(PingRepository pingRepository) {
+    public PingService(PingRepository pingRepository,
+                       UserService userService) {
         this.pingRepository = pingRepository;
+        this.userService = userService;
+    }
+
+    @Transactional
+    public void addPing(Conference conference) throws IOException {
+        Ping newPing = new Ping(new Date(), userService.getCurrentUser());
+        newPing.setConference(conference);
+        pingRepository.save(newPing);
     }
 }
diff --git a/src/main/resources/templates/conferences/conference.html b/src/main/resources/templates/conferences/conference.html
index 184f5b5..26fa695 100644
--- a/src/main/resources/templates/conferences/conference.html
+++ b/src/main/resources/templates/conferences/conference.html
@@ -121,7 +121,10 @@
                                     </div>
                                 </div>
 
-                                <div class="form-group d-flex justify-content-end">
+                                <div class="form-group d-flex justify-content-between flex-wrap">
+                                    <input type="hidden" th:value="*{ping}" th:name="ping"/>
+                                    <input id="pingButton" class="btn btn-primary"
+                                           type="submit" name="ping" value="Ping участникам"/>
                                     <input type="hidden" th:value="*{disabledTakePart}" th:name="disabledTakePart"/>
                                     <input id="take-part" class="btn btn-primary"
                                            type="submit" name="takePart" value="Принять участие"
diff --git a/src/main/resources/templates/conferences/dashboard.html b/src/main/resources/templates/conferences/dashboard.html
index 3480cc8..86be4f2 100644
--- a/src/main/resources/templates/conferences/dashboard.html
+++ b/src/main/resources/templates/conferences/dashboard.html
@@ -23,6 +23,7 @@
                 </th:block>
             </div>
             <hr/>
+            <!--chart example-->
             <nav>
                 <div class="nav nav-tabs" id="nav-tab" role="tablist">
                     <a class="nav-item nav-link active" id="nav-main-tab" data-toggle="tab"
@@ -41,10 +42,13 @@
                     <div id="salesByRegion" style="width:100%; height:400px;"></div>
                 </div>
             </div>
+            <!--chart example-->
         </div>
     </section>
     <script th:inline="javascript">
 /*<![CDATA[*/
+
+    // chart example
     $(function () {
         Highcharts.setOptions({
             lang: {
@@ -62,12 +66,7 @@
         var salesByRegionChart = Highcharts.chart('salesByRegion', {
             chart: {
                 type: 'pie',
-                margin: 40,
-                options3d: {
-                    enabled: true,
-                    alpha: 45,
-                    beta: 0
-                }
+                margin: 40
             },
             title: {
                 text: 'Sales by Region'
@@ -105,13 +104,7 @@
         var salesByTypeChart = Highcharts.chart('salesByType', {
             chart: {
                 type: 'column',
-                margin: 75,
-                options3d: {
-                    enabled: true,
-                    alpha: 15,
-                    beta: 15,
-                    depth: 110
-                }
+                margin: 75
             },
             title: {
                 text: 'Sales by Lure Type'
@@ -149,8 +142,6 @@
     }
 /*]]>*/
 
-
-
     </script>
 </div>
 </body>