<div class="document"> <h3><strong>1<span style="font-family:'宋体';">、项目功能介绍</span></strong></h3> <p>  水银体温计是生活中最常见的一种体温计。当纤细的体温计与腋下接触那一瞬间的冰凉感是不少人对它的印象<span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">也是不少</span><span style="font-family:'Times New Roman';">80</span><span style="font-family:'宋体';">后、</span><span style="font-family:'Times New Roman';">90</span><span style="font-family:'宋体';">后的生活印记。近日</span><span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">国家药监局在其网站发布《国家药监局综合司关于履行〈关于汞的水俣公约〉有关事项的通知》</span><span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">《通知》明确要求</span><span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">自</span><span style="font-family:'Times New Roman';">2026</span><span style="font-family:'宋体';">年</span><span style="font-family:'Times New Roman';">1</span><span style="font-family:'宋体';">月</span><span style="font-family:'Times New Roman';">1</span><span style="font-family:'宋体';">日起</span><span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">我国将全面禁止生产含汞体温计和含汞血压计产品。也就是说</span><span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">我们生活中经常用到的水银温度计将退出市场。也就是说，庞大的体温计市场，马上要迎来一次大换血，这中间的商机不言而喻。因此尝试制作一款电子体温计，不但可以锻炼我们的实践能力，还具有一定的实际使用意义。</span>    </p> <p>  在这样的背景下，我们小组设计并制作出了一款精度较高的<span style="font-family:'Times New Roman';">NTC</span><span style="font-family:'宋体';">电子体温计。电源方面，采用锂电池供电，使用</span><span style="font-family:'Times New Roman';">TP4056</span><span style="font-family:'宋体';">进行充放电，最后由线性稳压管</span><span style="font-family:'Times New Roman';">HT7833</span><span style="font-family:'宋体';">提供较为稳定的电压。使用</span><span style="font-family:'Times New Roman';">0.96</span><span style="font-family:'宋体';">寸</span><span style="font-family:'Times New Roman';">OLED</span><span style="font-family:'宋体';">显示屏显示温度，使用</span><span style="font-family:'Times New Roman';">ESP32</span><span style="font-family:'宋体';">作为控制核心，提供了</span><span style="font-family:'Times New Roman';">12</span><span style="font-family:'宋体';">位的</span><span style="font-family:'Times New Roman';">ADC</span><span style="font-family:'宋体';">和无线通信能力。测量部分，使用</span><span style="font-family:'Times New Roman';">NTC</span><span style="font-family:'宋体';">电阻，华巨</span><span style="font-family:'Times New Roman';">MF54-503E3950FA-19</span><span style="font-family:'宋体';">，设计了桥式放大电路转化</span><span style="font-family:'Times New Roman';">NTC</span><span style="font-family:'宋体';">热敏电阻的变化，利用模拟开关</span><span style="font-family:'Times New Roman';">CD4066</span><span style="font-family:'宋体';">设计误差矫正电路，削减误差，最终使我们的产品在</span><span style="font-family:'Times New Roman';">34</span><span style="font-family:'宋体';">到</span><span style="font-family:'Times New Roman';">42</span><span style="font-family:'宋体';">摄氏度范围内，精度可达</span><span style="font-family:'Times New Roman';">0.1</span><span style="font-family:'宋体';">摄氏度。</span></p> <h3> </h3> <h3><strong>2<span style="font-family:'宋体';">、项目属性</span></strong></h3> <p>项目为首次公开<span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">项目为团队共同创作</span></p> <p>首次公开<span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">故未参加比赛</span><span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">未在学校进行答辩</span></p> <p> </p> <h3><strong>3<span style="font-family:'宋体';">、开源协议</span></strong></h3> <p>核心功能完全开源</p> <p>清单如下</p> <p>  原理图<span style="font-family:'Times New Roman';">,PCB,</span><span style="font-family:'宋体';">单片机代码</span><span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">上位机代码</span><span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">产品外壳</span></p> <p>项目使用GPL 3.0开源协议</p> <p> </p> <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;"><strong><span style="color:#0093e6;">请在竞赛阶段填写 ↓</span></strong></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>  热敏电阻是一种特殊的电阻，它的阻值会随着温度变化而发生比较大的改变。热敏电阻基本上是一种陶瓷半导体。这种电阻有两种类型：正温度系数（<span style="font-family:'Times New Roman';">PTC</span><span style="font-family:'宋体';">）热敏电阻和负温度系数（</span><span style="font-family:'Times New Roman';">NTC</span><span style="font-family:'宋体';">）热敏电阻。</span><span style="font-family:'Times New Roman';">PTC </span><span style="font-family:'宋体';">热敏电阻会随着温度的升高增加阻值。反之，</span><span style="font-family:'Times New Roman';">NTC </span><span style="font-family:'宋体';">热敏电阻会随着温度的升高降低阻值。本文将会讨论的是 </span><span style="font-family:'Times New Roman';">NTC </span><span style="font-family:'宋体';">热敏电阻。</span></p> <p><span style="font-family:'Times New Roman';">  NTC </span><span style="font-family:'宋体';">热敏电阻通常由一系列金属氧化物组成，比如锰、镍、钴、铁、铜、钛氧化物。而</span><span style="font-family:'Times New Roman';">NTC </span><span style="font-family:'宋体';">热敏电阻的温度系数特性则是由它所包含的氧化物种类和制造工艺所决定的。相比于其他温度传感器，例如热电偶和铂热电阻温度传感器，热敏电阻有着价格低廉、灵敏度高和准确性高等优点。热敏电阻有着一个很宽广的应用范围，几乎能适用于任何环境。因为它通常有着一个很好的保护镀层。特别是密封在玻璃中的一种热敏电阻，有着非常高的稳定性和准确度。</span></p> <p>  热敏电阻的阻值与温度的关系是非线性的，可以大概的使用以下方程来表示：</p> <p> </p> <p>RT <span style="font-family:'宋体';">： 在温度 </span><span style="font-family:'Times New Roman';">T </span><span style="font-family:'宋体';">（ </span><span style="font-family:'Times New Roman';">K </span><span style="font-family:'宋体';">）时的 </span><span style="font-family:'Times New Roman';">NTC </span><span style="font-family:'宋体';">热敏电阻阻值。</span></p> <p>RN <span style="font-family:'宋体';">： 在额定温度 </span><span style="font-family:'Times New Roman';">TN </span><span style="font-family:'宋体';">（ </span><span style="font-family:'Times New Roman';">K </span><span style="font-family:'宋体';">）时的 </span><span style="font-family:'Times New Roman';">NTC </span><span style="font-family:'宋体';">热敏电阻阻值。</span></p> <p>T <span style="font-family:'宋体';">： 规定温度（ </span><span style="font-family:'Times New Roman';">K </span><span style="font-family:'宋体';">）。</span></p> <p>B <span style="font-family:'宋体';">： </span><span style="font-family:'Times New Roman';">NTC </span><span style="font-family:'宋体';">热敏电阻的材料常数，又叫热敏指数。</span></p> <p>exp<span style="font-family:'宋体';">： 以自然数 </span><span style="font-family:'Times New Roman';">e </span><span style="font-family:'宋体';">为底的指数（ </span><span style="font-family:'Times New Roman';">e = 2.71828 …</span><span style="font-family:'宋体';">）</span></p> <p>  根据国标规定，额定零功率电阻值是 <span style="font-family:'Times New Roman';">NTC </span><span style="font-family:'宋体';">热敏电阻在基准温度</span><span style="font-family:'Times New Roman';">25</span><span style="font-family:'宋体';">时测得的电阻值 </span><span style="font-family:'Times New Roman';">R25</span><span style="font-family:'宋体';">，这个电阻值就是</span><span style="font-family:'Times New Roman';">NTC </span><span style="font-family:'宋体';">热敏电阻的标称电阻值。通常所说 </span><span style="font-family:'Times New Roman';">NTC </span><span style="font-family:'宋体';">热敏电阻多少阻值，亦指该值。</span></p> <h3><strong><span style="font-family:'Times New Roman';">1.1.2</span><span style="font-family:'黑体';">分类</span></strong></h3> <p>  考虑到此次我们组设计的是电子体温计，<span style="font-family:'Times New Roman';">NTC</span><span style="font-family:'宋体';">热敏电阻选用</span><span style="font-family:'Times New Roman';">MF54-503E3950FA-30</span>型号。</p> <p><span style="font-family:'Times New Roman';">MF54:</span><span style="font-family:'宋体';">电子体温计用</span><span style="font-family:'Times New Roman';">NTC</span><span style="font-family:'宋体';">热敏电阻</span></p> <p><span style="font-family:'Times New Roman';">503:R25</span><span style="font-family:'宋体';">阻值</span><span style="font-family:'Times New Roman';">=50k</span><span style="font-family:'宋体';">Ω</span></p> <p><span style="font-family:'Times New Roman';">E:R25</span><span style="font-family:'宋体';">阻值精度，</span><span style="font-family:'Times New Roman';">E=</span><span style="font-family:'宋体';">±</span><span style="font-family:'Times New Roman';">0.5%</span></p> <p><span style="font-family:'Times New Roman';">3950</span><span style="font-family:'宋体';">：</span><span style="font-family:'Times New Roman';">B</span><span style="font-family:'宋体';">值</span></p> <p><span style="font-family:'Times New Roman';">F</span><span style="font-family:'宋体';">：</span><span style="font-family:'Times New Roman';">B</span><span style="font-family:'宋体';">值精度，</span><span style="font-family:'Times New Roman';">F=</span><span style="font-family:'宋体';">±</span><span style="font-family:'Times New Roman';">1%</span></p> <p><span style="font-family:'Times New Roman';">A:</span><span style="font-family:'宋体';">指定两点温度</span><span style="font-family:'Times New Roman';">B</span><span style="font-family:'宋体';">值，（</span><span style="font-family:'Times New Roman';">25/50</span><span style="font-family:'宋体';">℃）</span></p> <p> </p> <h3><strong>1</strong><strong><span style="font-family:'Times New Roman';">.2</span></strong><strong>.1 </strong><strong>恒压式测温</strong></h3> <p>原理概述</p> <p>  恒压式测温系统框图如图<span style="font-family:'Times New Roman';">1</span><span style="font-family:'宋体';">所示</span><span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">主要由恒压源部分、</span><span style="font-family:'Times New Roman';">NTC</span><span style="font-family:'宋体';">热敏电阻测温电桥、放大电路、</span><span style="font-family:'Times New Roman';">AD</span><span style="font-family:'宋体';">转换电路以及单片机构成。</span></p> <p align="center"> </p> <p>  基本工作原理为<span style="font-family:'Times New Roman';">:</span><span style="font-family:'宋体';">测温电桥将热敏电阻随所测温度变化的电压信号输出</span><span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">经过放大电路放大送入</span><span style="font-family:'Times New Roman';">A/D</span><span style="font-family:'宋体';">转换器转换为数字量</span><span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">最后送入单片机进行计算</span><span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">得出热敏电阻</span><span style="font-family:'Times New Roman';">R,</span><span style="font-family:'宋体';">的阻值</span><span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">然后根据已知的“</span><span style="font-family:'Times New Roman';">NTC</span><span style="font-family:'宋体';">热敏电阻的阻值</span><span style="font-family:'Times New Roman';">RT</span><span style="font-family:'宋体';">（Ω）—温度</span><span style="font-family:'Times New Roman';">T</span><span style="font-family:'宋体';">（</span><span style="font-family:'Times New Roman';">K</span><span style="font-family:'宋体';">）特性（</span>）”结合数值分析方法进行非线性拟合即可得出此时的温度值。</p> <p>对于电桥的分析</p> <p>桥式电路的基本原理</p> <p>根据电桥工作时是否平衡可将电桥分为平衡电桥和非平衡电桥。平衡电桥通过比较桥路中待测电阻<span style="font-family:'Times New Roman';">Rx</span><span style="font-family:'宋体';">与标准电阻</span><span style="font-family:'Times New Roman';">R ,</span><span style="font-family:'宋体';">从而得到待测电阻</span><span style="font-family:'Times New Roman';">Rx</span><span style="font-family:'宋体';">值。而在实际的工程测试中</span><span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">很多待测物理量是连续变化的</span><span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">将相应的阻值变化元件放置在电桥的待测电阻桥臂上时，电桥多处于非平衡的工作状态，故利用电桥输出的非平衡电压可以对引起待测电阻变化的其他物理量进行测量。其原理如下图所示</span><span style="font-family:'Times New Roman';">:</span></p> <p align="center"> </p> <p><span style="font-family:'Times New Roman';">AB</span><span style="font-family:'宋体';">为供电电压</span><span style="font-family:'Times New Roman';">Ui</span><span style="font-family:'宋体';">输入端</span><span style="font-family:'Times New Roman';">, CD</span><span style="font-family:'宋体';">为测量电压</span><span style="font-family:'Times New Roman';">Uo</span><span style="font-family:'宋体';">输出端。</span></p> <p>根据分压原理可得<br><br></p> <p> </p> <p>输出电压为：</p> <p> </p> <p>当电桥平衡时，即满足 <span style="font-family:'Times New Roman';">R1R3=R2Rx</span><span style="font-family:'宋体';">，电桥输出电压 </span><span style="font-family:'Times New Roman';">Uo=0 </span><span style="font-family:'宋体';">若待测电阻</span><span style="font-family:'Times New Roman';">R</span><span style="font-family:'宋体';">ｘ因外界环境变化而产生变化时，设电桥平衡时待测电阻为 </span><span style="font-family:'Times New Roman';">R</span><span style="font-family:'宋体';">，则有 </span><span style="font-family:'Times New Roman';">Rx=R+</span><span style="font-family:'宋体';">Δ</span><span style="font-family:'Times New Roman';">R</span><span style="font-family:'宋体';">，输出电压 </span></p> <p> </p> <p>对于桥式电路的误差分析</p> <p>在现代工业中，不平衡电桥在测量电路中被得到广泛应用，然而普通测温电桥由于与热敏电阻串联的电阻<span style="font-family:'Times New Roman';">R1</span><span style="font-family:'宋体';">自身存在温漂，故而在实际使用过程中会对电压输出端</span><span style="font-family:'Times New Roman';">V-</span><span style="font-family:'宋体';">带来一定误差。</span></p> <p align="center"> </p> <p>输出端<span style="font-family:'Times New Roman';">V-</span><span style="font-family:'宋体';">电压为：</span></p> <p> </p> <p>当<span style="font-family:'Times New Roman';">R1</span><span style="font-family:'宋体';">发生为Δ</span><span style="font-family:'Times New Roman';">R</span><span style="font-family:'宋体';">变化时，输出电压</span><span style="font-family:'Times New Roman';">V-</span><span style="font-family:'宋体';">为：</span></p> <p> </p> <p>而在此时其输出端<span style="font-family:'Times New Roman';">V-</span><span style="font-family:'宋体';">也会产生误差即Δ</span><span style="font-family:'Times New Roman';">V</span><span style="font-family:'宋体';">：</span></p> <p> </p> <p>但若令<span style="font-family:'Times New Roman';">RT</span><span style="font-family:'宋体';">＝</span><span style="font-family:'Times New Roman';">R1</span><span style="font-family:'宋体';">＝</span><span style="font-family:'Times New Roman';">R</span><span style="font-family:'宋体';">，则可等到：</span></p> <p> </p> <p>然而此时可粗略得到如果Δ<span style="font-family:'Times New Roman';">R</span><span style="font-family:'宋体';">与</span><span style="font-family:'Times New Roman';">R</span><span style="font-family:'宋体';">的比值在</span><span style="font-family:'Times New Roman';">0.05</span><span style="font-family:'宋体';">时，经计算后得到的误差Δ</span><span style="font-family:'Times New Roman';">V</span><span style="font-family:'宋体';">约为</span><span style="font-family:'Times New Roman';">1.22</span><span style="font-family:'宋体';">％Ｖ，此时其误差较大难以满足高精度测温系统的要求，于是我们对电桥部分进行了研究调查，发现当电桥如图三设计时，可以极大程度减少误差。</span></p> <p align="center"> </p> <p>如上图所示可得<span style="font-family:'Times New Roman';">V-</span><span style="font-family:'宋体';">：</span></p> <p> </p> <p>　　又由于<span style="font-family:'Times New Roman';">R1</span><span style="font-family:'宋体';">和</span><span style="font-family:'Times New Roman';">R2</span><span style="font-family:'宋体';">所处环境相同，故可令</span><span style="font-family:'Times New Roman';">R1</span><span style="font-family:'宋体';">和</span><span style="font-family:'Times New Roman';">R2</span><span style="font-family:'宋体';">相等，此时当两者同时发生大小为ΔＲ变化时输出电压 Ｖ′－为： </span></p> <p> </p> <p>输出端<span style="font-family:'Times New Roman';">V-</span><span style="font-family:'宋体';">误差为 ΔＶ：</span></p> <p> </p> <p>现在当我们选在<span style="font-family:'Times New Roman';">25</span><span style="font-family:'宋体';">℃时，阻值为</span><span style="font-family:'Times New Roman';">5</span><span style="font-family:'宋体';">ｋΩ的</span><span style="font-family:'Times New Roman';">NTC</span><span style="font-family:'宋体';">热敏电阻进行实验测试时，当</span><span style="font-family:'Times New Roman';">R1</span><span style="font-family:'宋体';">＝</span><span style="font-family:'Times New Roman';">R2</span><span style="font-family:'宋体';">＝</span><span style="font-family:'Times New Roman';">R</span><span style="font-family:'宋体';">＝</span><span style="font-family:'Times New Roman';">20</span><span style="font-family:'宋体';">ｋΩ，此时若同样令Δ</span><span style="font-family:'Times New Roman';">R</span><span style="font-family:'宋体';">与</span><span style="font-family:'Times New Roman';">R</span><span style="font-family:'宋体';">的比值为</span><span style="font-family:'Times New Roman';">0.05</span><span style="font-family:'宋体';">时，经计算得出输出端</span><span style="font-family:'Times New Roman';">V-</span><span style="font-family:'宋体';">误差为：ΔＶ＝</span><span style="font-family:'Times New Roman';">0.24</span><span style="font-family:'宋体';">％</span><span style="font-family:'Times New Roman';">V</span><span style="font-family:'宋体';">。当热敏电阻</span><span style="font-family:'Times New Roman';">RT</span><span style="font-family:'宋体';">随温度变化为 </span><span style="font-family:'Times New Roman';">10</span><span style="font-family:'宋体';">ｋΩ时，若令Δ</span><span style="font-family:'Times New Roman';">R</span><span style="font-family:'宋体';">与</span><span style="font-family:'Times New Roman';">R</span><span style="font-family:'宋体';">的比值仍然为</span><span style="font-family:'Times New Roman';">0.05</span><span style="font-family:'宋体';">时经计算输出端</span><span style="font-family:'Times New Roman';">V-</span><span style="font-family:'宋体';">误差为：ΔＶ＝</span><span style="font-family:'Times New Roman';">0.38</span><span style="font-family:'宋体';">％</span><span style="font-family:'Times New Roman';">V</span><span style="font-family:'宋体';">。故而多次实验得证：经比较应用改进型桥式测温电路后，输出端</span><span style="font-family:'Times New Roman';">V-</span><span style="font-family:'宋体';">误差与普通测温电桥相比大大减小显著提高了测温系统的精度。</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> <p>本次设计采用硬件为：<span style="font-family:'Times New Roman';">3</span>.3V恒压源模块，电桥放大电路模块，电路校准模块以及数据处理模块，各个模块型号与精度如下：</p> <p align="justify"><strong><span style="font-family:'Times New Roman';">2.1.1 </span></strong><strong>3.3V</strong><strong>恒压源模块</strong></p> <p>恒压源模块主要采用<span style="font-family:'宋体';">最大输</span>入电压为<span style="font-family:'Times New Roman';">6</span>.5V的<span style="font-family:'Times New Roman';">M</span>E2108<span style="font-family:'Times New Roman';">A</span>50PG电源芯片与正向压降为<span style="font-family:'Times New Roman';">5</span>50mv的SS12,其电路设计如图一</p> <p align="center"> </p> <p align="center">图一</p> <p align="justify"><strong><span style="font-family:'Times New Roman';">2.1.2 </span></strong><strong>电桥放大电路模块</strong></p> <p>电桥放大电路模块采用<span style="font-family:'Times New Roman';">3</span>0k<span style="font-family:'宋体';">Ω档</span><span style="font-family:'Times New Roman';">M</span>F54型号的<span style="font-family:'Times New Roman';">N</span>TC热敏电阻其误差为±<span style="font-family:'Times New Roman';">0</span>.012度</p> <p>放大器采用<span style="font-family:'Times New Roman';">L</span>M321LV放大器其工作范围为<span style="font-family:'Times New Roman';">2</span>.7V~5.5V工作环境为-40<span style="font-family:'宋体';">℃</span><span style="font-family:'Times New Roman';">~</span>+125<span style="font-family:'宋体';">℃</span><span style="font-family:'Times New Roman';">,</span><span style="font-family:'宋体';">电路设计如图二</span></p> <p align="center"> </p> <p align="center">图二</p> <p align="justify"><strong><span style="font-family:'Times New Roman';">2.1.3 </span></strong><strong>电路校准模块</strong></p> <p>电路校准模块主要采用<span style="font-family:'Times New Roman';">C</span>D4066BD模拟开关，<span style="font-family:'Times New Roman';">M</span>F54热敏电阻</p> <p><span style="font-family:'Times New Roman';">C</span>D4066BD工作电压范围为<span style="font-family:'Times New Roman';">3V</span>~18<span style="font-family:'Times New Roman';">V</span><span style="font-family:'宋体';">工作温度为</span><span style="font-family:'Times New Roman';">-</span>25<span style="font-family:'Times New Roman';">~</span>+125<span style="font-family:'宋体';">℃，其设计图三如下</span></p> <p align="center"> </p> <p align="center">图三</p> <p align="justify"><strong><span style="font-family:'Times New Roman';">2.1.4</span></strong><strong>数据处理模块</strong></p> <p>数据处理模块主要由<span style="font-family:'Times New Roman';">S</span>TM32F401REXX片载<span style="font-family:'Times New Roman';">A</span>DC与单片机组成，片载<span style="font-family:'Times New Roman';">A</span>DC为<span style="font-family:'Times New Roman';">1</span>2位数模转换器，其转换范围为<span style="font-family:'Times New Roman';">0</span>V~3.6V，并可以配置采样周期，选择适当的采样周期获得更精确的数据</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;">注：推荐使用<span style="text-decoration:underline;"><a href="https://lceda.cn/editor" target="_blank">立创EDA</a></span>。若选择其他EDA工具，请在附件上传PDF格式的原理图，PDF格式的PCB图纸，Gerber格式的PCB文件。这里可以详细说明您的项目实现原理和机制、注意事项、调试方法、测试方法等。推荐图文并茂的形式向别人介绍您的想法。</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="color:#95a5a6;font-size:14px;">请输入内容…</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="color:#95a5a6;font-size:14px;">注：若您的项目涉及软件开发，请在附件上传对应的工程源码。这里可以详细说明您的软件流程图、功能模块框图、相关算法的解释或科普、源码结构、编译环境的搭建和配置、源码编译方法、程序烧录方法等。推荐图文并茂的形式向别人介绍您的想法。</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"> <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;">请输入内容…</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="color:#95a5a6;font-size:14px;">注：项目涉及的BOM清单。这个位置请上传BOM的截图。清单详情请以PDF的格式上传到附件中。建议包括型号、品牌、名称、封装、采购渠道、用途等内容。具体内容和形式应以表达清楚项目构成为准。</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;">*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>