transform sensor 组件在哪
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【区块链技术】基于Python的体育用品防伪溯源系统设计:商品数字身份与链式账本校验模型实现 项目介绍 基于Python和区块链的体育用品防伪溯源平台设计与实现(含模型描述及部分示例代码)
内容概要:本文详细介绍了一个基于Python和区块链技术的体育用品防伪溯源平台的设计与实现。系统通过为每件商品建立唯一的数字身份,利用Flask构建Web接口服务,SQLite存储业务数据,并采用SHA-256哈希算法生成商品与事件摘要,写入链式账本以确保数据不可篡改。平台实现了商品登记、流转事件记录、防伪查询、链式校验和权限控制等功能,结合区块链的链式结构与摘要校验机制,保障了供应链全流程的数据可信性与追溯能力。项目涵盖商品模型、区块模型、溯源事件模型及防伪查询算法,并提供了完整的代码示例与自动化测试方案,支持从单机演示向联盟链生产环境扩展。; 适合人群:具备一定Python编程基础,熟悉Web开发、数据库设计及基本密码学概念的高校学生、软件开发者或企业技术人员,尤其适用于从事毕业设计、课程项目或企业原型开发的相关人员。; 使用场景及目标:①应用于体育用品(如运动鞋服、器材)的防伪溯源系统建设,提升品牌公信力;②实现从生产到销售的全流程可信追踪,支持质量事故快速定位与责任界定;③为消费者提供便捷、可验证的扫码查询服务,增强用户体验与品牌信任;④作为区块链与供应链融合的技术实践案例,推动企业数字化转型。; 阅读建议:此资源不仅包含理论模型与架构设计,还提供可运行的代码示例与测试用例,建议读者结合代码实践,深入理解商品数字身份、链式账本、摘要校验与状态机等核心机制,并尝试将其扩展至多节点联盟链或集成至现有ERP、WMS系统中。
Pedometer:自主学习课程项目
计步器 Android计步器的源代码。 该算法基于FFT和频域域峰值的提取。
Image Compression for Wireless Sensor Networks
Image Compression for Wireless Sensor Networks
Multi-sensor image fusion using discrete wavelet frame transform
An algorithm is presented for multi-sensor image fusion using discrete wavelet frame transform (DWFT). The source images to be fused are firstly decomposed by DWFT. The fusion process is the combining of the source coefficients. Before the image fusion process, image segmentation is performed on each source image in order to obtain the region representation of each source image. For each source image, the salience of each region in its region representation is calculated. By overlapping all thes
BS_contact的Layer2D实例(宝马)
BS_contact的案例,利用Layer2D实现二维的按钮,按钮不随着视点的变化而变化,利用vrml语言实现交互的时候可以用到。
背景根据重力感应动
背景图片根据手机的重力感应进行移动效果。
AdamShan-NDT_PCL_demo-master.zip
AdamShan-NDT_PCL_demo-master.zip
VRML做的虚拟教室
VRML做的虚拟教室,可以转风扇,拉窗帘
Energy Analysis Method Based on Wavelet Transform for sensor diagnosis
Wavelet analysis with its unique features is very suitable for analyzing non-stationary signal, and it can also be used as an ideal tool for signal processing in fault diagnosis. The characteristics of the faults and the necessary information on the diagnosis can be constructed and extracted respectively by wavelet analysis. Though wavelet analysis is specialized in characteristics extraction, it can not determine the fault type. So this paper has proposed an energy analysis method based on wavelet transform. Experiment results show the method is very effective for sensor fault diagnosis, because it can not only detect the sensor faults, but also determine the fault type
Development of Telemedicine and Telecare over Wireless Sensor Network
Telemedicine & Telecare aided by wireless sensor network (WSN) has recently become a health-caring trend in the future. However, the low data rate of WSN limited the acceptable quality of service. Researches [1-6] adopted ZigBee-based WSN to implement a platform and/or a telecare system. However, the capacity problem due to low data rate characteristic has not been addressed. Our research proposed an arrhythmia-aware telecare system and a new DSPbased WSN platform, enabling good digital signal processing performance in ZigBee-based WSN. Proved by simulations and several real tests, combination of the proposed platform and system can provide a more bandwidth-conserving and reliable telecare system, with lower wireless traffic jam and higher stability. Keywords: Telemedicine, Wireless Sensor Network, ZigBee, DSP, Discrete Wavelet Transform
vrmlpad.rar
VRML工具包含破解及浏览器插件。用户名:free 注册:KOB—D5146760
chrome-headless-shell-win64-152.0.7942.0(Canary).zip
chrome-headless-shell-win64-152.0.7942.0(Canary)
VRML虚拟现实建模语言
详细地介绍了虚拟现实建模语言的基本用法。
ROS-API文档.rar
ROS-API文档.rar
data_transform_app
在本地模式下运行的数据转换Spark应用程序 假设: AwesomeWorkflow和ReceiptScanner都按照命名约定将每日文件推送到同一存储桶中。 文件名包括日期键。 即AwesomeWorkflow_2018-09-15.csv 两个系统中的时间戳均采用UTC。 在此示例中,作业在2018-09-16上运行,以处理上一个日期2018-09-15的数据。 高级解决方案说明: 数据处理工作流是批量处理的。 每天使用诸如Airflow之类的调度工具,S3传感器都会监视这些文件的到达。 S3事件通知也可以与Sensor一起使用,以等待来自Amazon SQS队列的文件到达通知。 文件到达后,将触发数据转换任务以聚合两个文件并生成拼花输出。 数据转换应用程序需要一个csv和一个json文件,以生成拼花输出。 输出的拼花地板按日期划分,以供以后查询或下游应用程序使用。 可以通
An Efficient Key Management Scheme in Wireless Sensor Networks for Smart Grid
<span xss=removed>The smart grid has caught great attentions in recent years, which is poised to transform a centralized, producer-controlled network to a decentralized, consumer-interactive network that's supported by fine-grained monitoring. Large-scale WSNs (Wireless Sensor Networks) have been considered one of the very promising technologies to support the implementation of smart grid. WSNs are applied in almost every aspect of smart grid, including power
ROS.STM32运动底盘源码.zip
ROS.STM32运动底盘源码,是某宝开源底盘代码,大家可以研究研究
vrmljiedian.rar_VRML_vrml html
这是vrml中所有常用节点的用法详细解释,对于初学者很有帮助。
Super-resolution Measurement Method for Passive Wireless Resonant SAW Sensor
Super-resolution Measurement Method for Passive Wireless Resonant SAW Sensor
VRML 节点参考手册
VRML 节点参考, 详细介绍了各个节点的用法,可以在编写VRML 的时候参考
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