<div class="document"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 1、项目功能介绍</h3> <hr class="horizontal-splitline normal-bold-2"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">        针对目前电子血压计价格昂贵、精度不高的现状，设计了一款以STM32G030C8T6为控制核心的便携式、高精度、价格低廉的电子血压计。设计了差动电压源型滤波器，软件上使用中值滤波算法对数据进行预处理，依据峰值点的定义与阈值法来提取脉搏波各个单波的峰值点。利用高斯曲线对峰值点进行拟合，并根据变幅度系数法计算出舒张压与收缩压。系统包括一键开关机与一键测量电路，极大的方便用户使用。包括0.91寸OLED驱动电路，用于显示测量结果与系统信息。信号采集与放大电路用于初步处理压力信号。蜂鸣器驱动电路与按键检测电路用于实现用户交互。</p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*2、项目属性</h3> <hr class="horizontal-splitline normal-bold-2"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6;"><span style="font-size: 14px;">原创</span></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 3、开源协议</h3> <hr class="horizontal-splitline normal-bold-2"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">GPL3.0开源协议</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*4、硬件部分</h3> <hr class="horizontal-splitline normal-bold-2"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="font-size: 16px;"><strong><span style="color: #95a5a6;">4.1 MCU最小系统</span></strong></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="font-size: 16px;"><strong><span style="color: #95a5a6;">4.2 串口通讯电路</span></strong></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="font-size: 16px;"><strong><span style="color: #95a5a6;">4.3 一键开关机电路</span></strong></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="font-size: 16px;"><strong><span style="color: #95a5a6;">4.4 电源电路</span></strong></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="font-size: 16px;"><strong><span style="color: #95a5a6;">4.5 信号采集与放大电路</span></strong></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="font-size: 16px;"><strong><span style="color: #95a5a6;">4.6 人机交互电路</span></strong></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="font-size: 16px;"><strong><span style="color: #95a5a6;">4.7 电机驱动电路</span></strong></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-left-indent-1.6em" style="line-height: 1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*5、软件部分</h3> <hr class="horizontal-splitline normal-bold-2"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="font-size: 16px;"><strong><span style="color: #95a5a6;">5.1 测量原理软件流程图</span></strong></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="font-size: 16px;"><strong><span style="color: #95a5a6;">5.2 PID加压</span></strong></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="font-size: 16px;"><strong><span style="color: #95a5a6;">5.3 数据处理</span></strong></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="font-size: 16px;"><strong><span style="color: #95a5a6;">5.4 提取脉搏波</span></strong></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="font-size: 16px;"><strong><span style="color: #95a5a6;">5.5 血压计算</span></strong></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-left-indent-1.6em" style="line-height: 1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*6、BOM清单</h3> <hr class="horizontal-splitline normal-bold-2"> <table style="border-collapse: collapse; width: 270pt;" width="360"> <tr style="height: 14.25pt;"> <td style="height: 14.25pt; width: 54pt;" width="72" height="19">ID</td> <td style="width: 54pt;" width="72">Name</td> <td style="width: 54pt;" width="72">Designator</td> <td style="width: 54pt;" width="72">Footprint</td> <td style="width: 54pt;" width="72">Quantity</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">1</td> <td>螺丝孔</td> <td>B1,B2,B3,B4</td> <td>螺丝孔M3</td> <td align="right">4</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">2</td> <td>C194267</td> <td>BUZZER1</td> <td>BEEP9*5</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">3</td> <td>0.1u</td> <td>C1,C2,C3,C5,C6,C7,C8,C25,C30,C10,C12,C15</td> <td>C0603</td> <td align="right">12</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">4</td> <td>4.7uf</td> <td>C4</td> <td>C0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">5</td> <td>10U</td> <td>C9,C14,C18</td> <td>C0603</td> <td align="right">3</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">6</td> <td>1U</td> <td>C11,C13,C16,C17</td> <td>C0603</td> <td align="right">4</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">7</td> <td>680N</td> <td>C19</td> <td>C0805</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">8</td> <td>15U</td> <td>C20</td> <td>C0805</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">9</td> <td>1uf</td> <td>C21,C22</td> <td>C0603</td> <td align="right">2</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">10</td> <td>100nF</td> <td>C23,C28</td> <td>C0603</td> <td align="right">2</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">11</td> <td>4.7U</td> <td>C24,C29</td> <td>C0603</td> <td align="right">2</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">12</td> <td align="right">2.2</td> <td>C26</td> <td>C0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">13</td> <td>4.7u</td> <td>C27</td> <td>C0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">14</td> <td>10u</td> <td>C31</td> <td>C0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">15</td> <td>DSK26</td> <td>D1,D2,D3,D4,D5,D6,D7</td> <td>SOD-123_L2.8-W1.8-LS3.7-RD</td> <td align="right">7</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">16</td> <td>HDR-F-2.54_1x2</td> <td>H1</td> <td>HDR-F-2.54_1X2</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">17</td> <td>HDR-F-2.54_1x4</td> <td>H2,H3</td> <td>CONN-SMD_ZH1.5-4P-LT</td> <td align="right">2</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">18</td> <td>K2-3.6×6.1_SMD</td> <td>KEY1,KEY2</td> <td>KEY-TH_TS-1038-A2B3-D2</td> <td align="right">2</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">19</td> <td>2.2U</td> <td>L1</td> <td>IND-SMD_L4.0-W4.0_SMNR4030</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">20</td> <td>LED-0603_R</td> <td>LED1,LED2,LED3</td> <td>LED0603_RED</td> <td align="right">3</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">21</td> <td>SI2301</td> <td>Q1,Q2</td> <td>SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR</td> <td align="right">2</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">22</td> <td>DDTC143EUA-7-F</td> <td>Q3</td> <td>SOT-323-3_L2.0-W1.3-P1.30-LS2.1-BR</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">23</td> <td>S8050</td> <td>Q4,Q5,Q6</td> <td>SOT-23-3_L2.9-W1.3-P1.90-LS2.4-TR</td> <td align="right">3</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">24</td> <td>100k</td> <td>R1</td> <td>R0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">25</td> <td>10K</td> <td>R2</td> <td>R0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">26</td> <td align="right">510</td> <td>R3</td> <td>R0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">27</td> <td>100K</td> <td>R4,R5,R14,R15,R23,R38,R41,R42</td> <td>R0603</td> <td align="right">8</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">28</td> <td>5.1K</td> <td>R6</td> <td>R0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">29</td> <td>2.32K</td> <td>R7</td> <td>R0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">30</td> <td>18K</td> <td>R8</td> <td>R0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">31</td> <td>2K</td> <td>R9</td> <td>R0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">32</td> <td align="right">0</td> <td>R10,R11,R12,R13</td> <td>R0603</td> <td align="right">4</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">33</td> <td>200K</td> <td>R16</td> <td>R0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">34</td> <td>500K</td> <td>R17,R18,R19,R20,R21,R22</td> <td>R0603</td> <td align="right">6</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">35</td> <td>62K</td> <td>R24</td> <td>R0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">36</td> <td>33K</td> <td>R25,R26</td> <td>R0603</td> <td align="right">2</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">37</td> <td>20K</td> <td>R27,R43</td> <td>R0603</td> <td align="right">2</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">38</td> <td>301K</td> <td>R28</td> <td>R0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">39</td> <td>1k</td> <td>R29,R39,R40,R44</td> <td>R0603</td> <td align="right">4</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">40</td> <td>22.6K</td> <td>R30</td> <td>R0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">41</td> <td>2.49K</td> <td>R31</td> <td>R0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">42</td> <td>4.7K</td> <td>R32,R33,R35,R37</td> <td>R0603</td> <td align="right">4</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">43</td> <td>910K</td> <td>R34</td> <td>R0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">44</td> <td align="right">47</td> <td>R36</td> <td>R0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">45</td> <td>20k</td> <td>R45</td> <td>R0603</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">46</td> <td>STM32G030C8T6</td> <td>U1</td> <td>LQFP-48_L7.0-W7.0-P0.50-LS9.0-BL</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">47</td> <td>CH340N</td> <td>U2</td> <td>SOP-8_L5.0-W4.0-P1.27-LS6.0-BL</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">48</td> <td>TP4065</td> <td>U3</td> <td>SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BR</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">49</td> <td>RT9013-33GB</td> <td>U4</td> <td>SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BR</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">50</td> <td>FM3608</td> <td>U5</td> <td>SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">51</td> <td>WF100SPZ 0.4BG S6 AT</td> <td>U6</td> <td>QIYA</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">52</td> <td>0.91oledIIC</td> <td>U9</td> <td>OLED_UG-9616TLBBG02</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">53</td> <td>TYPEC-307DSW-ACP16</td> <td>USB1</td> <td>USB-C-SMD_TYPEC-307DSW-ACP16</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">54</td> <td>8MHz</td> <td>X1</td> <td>OSC-SMD_3P-L3.2-W1.3-P1.2-L</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">55</td> <td>LM324</td> <td>U7</td> <td>SOP-14_L10.3-W5.3-P1.27-LS7.8-BL</td> <td align="right">1</td> </tr> <tr style="height: 14.25pt;"> <td style="height: 14.25pt;" align="right" height="19">56</td> <td>LM358ADR2G</td> <td>U8</td> <td>SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL</td> <td align="right">1</td> </tr> </table> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*7、大赛LOGO验证</h3> <hr class="horizontal-splitline normal-bold-2"> <p style="line-height: 1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">请上传包含大赛logo的项目图片，logo以丝印形式印刷在PCB上面。</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">点击zip下载大赛logo标识！ <span style="text-decoration: underline;"><a href="https://lceda.oss-cn-shenzhen.aliyuncs.com/diy/uploads/file/2019/05/29/0e4d93a463d7ceb5e7dc77d774b7a4ae.zip" target="_blank">（大赛标识）.zip</a></span></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 8、演示您的项目并录制成视频上传</h3> <hr class="horizontal-splitline normal-bold-2"> <p style="line-height: 1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">视频要求：请横屏拍摄，分辨率不低于1280×720，格式Mp4/Mov，单个视频大小限100M内；</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="color: #95a5a6; font-size: 14px;">视频标题：立创电赛：{项目名称}-{视频模块名称}；如立创电赛：《自动驾驶》-团队介绍。</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"><span style="font-size: 14px;">更多详情：<a href="/posts/06c94d90c2c447dfbd9ed7339ff4a5b1" target="_blank">https://diy.szlcsc.com/posts/06c94d90c2c447dfbd9ed7339ff4a5b1</a></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;"> </p> </div>