AC1082原理图,包含功放电路,TF卡,按键功能电路,供电,指示灯等周围电路
2022-12-18 20:43:29 31KB MP3解码器 MP3开发 原理图
1
自己喜欢和驴友出游也喜欢和出海钓鱼,给自己做了个定位的黑匣子,给大家分享一下! 实现功能:当你出门在外遇到困难时打开,硬件将通过手机卡上网,将个人定位位置发到一个指定的IP上,用我的谷歌地图软件来显示。 因为是个人玩 所以GPRS选择的电子市场的二手模块 : AVR - ATMEGA64L+UBLOX GPS LEA-5 +BENQ M23。 如果现在想自己做的话:建议AVR ATMEGA32+UBLOX 6M+ 中兴2639 成本能控制低一些,在150左右。我这个方案贵了些。特别是北斗开始民用化了,成本更低了。定位精度为0.5米左右,也就是说我的两次定位分别显示了两个点,也就是我们家窗子的宽度,民用的这个级别感觉不错,感觉也怪危险,坐等战斧。板子做好后,又做了小板进行232串口电平转换,可以用来监控串口的数据。可以在调试时,将芯片间的通信数据用电脑测试到。这个板子做了光电隔离,为了保护电脑的串口。但要注意选择光耦的速度。 下图是自己做了一套定位软件,支持串口传入数据与网络传入数据两种模式。将自己电脑的网络IP写入单片机,通过GPRS模块 上网,将定位数据发到电脑上在地图上显示出来。 这是GPS模块提供的测试软件,直接接上串口就可以测试模块的定位性能及数据。 下图为定位精度,谷歌地图的显示。 天线是放在四楼的窗子上的,很准吧!
2022-12-17 10:54:44 506KB 定位系统 北斗定位 电路方案
1
图形目录 图23.1 企业销售管理业务的第一层数据流图 3 图23.2 销售基础数据管理业务数据流图(第二层数据流) 4 图23。3 销售计划管理业务数据流图(第二层数据流) 4 图23.4 销售订单管理业务数据流图(第二层数据流) 5 图23。5 销售收发货管理业务数据流图(第二层数据流) 5 图23。6 销售服务管理业务数据流图(第二层数据流) 6 图23.7 企业销售管理E—R关系图 6 图23.8 销售管理系统的功能模块图 7 图24。1 企业采购管理数据流程图 8 图24.2 采购基础数据管理数据流程图(第二层数据流) 9 图24.3 采购计划管理数据流程图(第二层数据流) 9 图24。4 采购订单处理数据流程图(第二层数据流) 10 图24.5 采购收货管理数据流程图(第二层数据流) 10 图24。6 采购系统实体关系图 11 图24.7 采购系统模块图 12 图25。1 企业库存管理第一层数据流图 13 图25。2 库存基础数据管理数据流图(第二层数据流) 14 图25。3 库存处理数据流图(第二层数据流) 14 图25。4 入库处理展开数据流图(第三层数据流) 15 图
2022-12-16 17:14:23 910KB 文档资料
1
----------------------- GSM主叫流程图全文共1页,当前为第1页。
2022-12-16 17:14:21 108KB 文档资料
1
GSP流程图(1).ppt该文档详细且完整,值得借鉴下载使用,欢迎下载使用,有问题可以第一时间联系作者~
2022-12-16 17:14:20 218KB 文档资料
1
GSP流程图.ppt该文档详细且完整,值得借鉴下载使用,欢迎下载使用,有问题可以第一时间联系作者~
2022-12-16 17:14:19 219KB 文档资料
1
人 事 工 作 总 流 程 人事部工作流程图(总图) 员工进入——退出公司轨迹 "招聘 " "用人部门 "人事部 "主管公司领导 "总经理 "关联流程 " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " "绩效管理——考核 " "被考核人 "考核人 " "人事部 "总经理 "关联流程" " " " " " " " "绩效管理——评估 " "被评估人 "评估人 "人事部 "公司领导 "关联规程 " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " "薪酬 " "外部信息 "员工 "人事部 "公司领导 "关联流程 " " " " " " " "
2022-12-16 17:14:18 356KB 文档资料
1
人 事 工 作 总 流 程 人事部工作流程图(总图) 员工进入——退出公司轨迹 "招聘 " "用人部门 "人事部 "主管公司领导 "总经理 "关联流程 " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " "绩效管理——考核 " "被考核人 "考核人 " "人事部 "总经理 "关联流程" " " " " " " " "绩效管理——评估 " "被评估人 "评估人 "人事部 "公司领导 "关联规程 " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " "薪酬 " "外部信息 "员工 "人事部 "公司领导 "关联流程 " " " " " " " "
2022-12-16 17:14:17 358KB 文档资料
1
人事部工作流程图(总图) 员工进入——退出公司轨迹 "招聘 " " 返回顶部 " "用人部门 "人事部 "主管公司领导 "总经理 "关联流程 " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " "绩效管理——考核 " " 返回顶部 " "被考核人 "考核人 " "人事部 "总经理 "关联流程" " " " " " " " "绩效管理——评估 " " 返回顶部 " "被评估人 "评估人 "人事部 "公司领导 "关联规程 " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " "薪酬 " " 返回顶部 " "外部信息 "员工 "人事部 "公司领导
2022-12-16 17:14:16 363KB 文档资料
1
HR软件流程图.ppt该文档详细且完整,值得借鉴下载使用,欢迎下载使用,有问题可以第一时间联系作者~
2022-12-16 17:14:15 1.27MB 文档资料
1