RFID：实时产品跟踪

设置 MongoDB Atlas

集群设置

• 选择一个云提供商。

• 选择区域。

• 配置集群规格（例如，实例大小、存储）。

网络安全

• 配置网络访问。

• 识别边缘设备和应用程序服务器的 IP 访问列表。

• Use user authentication.

• 创建一个具有读取和写入权限的库存数据库用户。

连接

• Obtain a connection string from MongoDB Atlas.

• Use your connection string to connect your application to the cluster.

在 Xcode 中配置您的项目

项目设置

• Open the 123RFID project in Xcode, or open the project using the name you assigned.

• Configure your project settings.

• Add the required frameworks and libraries from the Zebra SDK.

• Configure build settings, including library and framework search paths.

设备配对

• 在 iOS 设备上启用蓝牙功能。

• Pair the RFID reader using the 123RFID app.

运行该应用程序

• Connect your iOS device to Mac.

• Select the device as target in Xcode.

• 运行应用程序。

Match inventory tags

The getMatchingTagList method in Objective-C compares RFID tags from the current physical inventory with a predefined list of tags, and updates the user interface accordingly. This procedure works as follows:

• Retrieves the current inventory and the predefined tag list.

• 将库存标签与标签列表进行比较，找出匹配的标签。

• 从缺失的标签列表中删除匹配的标签。

• Updates the UI with counts of unique and total tags.

• Stops the inventory operation and confirms a complete match if all tags are accounted for.

发送比赛确认

The sendUrlRequestToFlag method sends a POST request to a specified URL to indicate the result of the inventory check. This process works as follows:

• Initializes a POST request to the target URL.

• Sets the JSON content type header.

• Prepares a JSON payload with inventory check results.

• Sends a POST request and logs the results.

• 根据库存检查结果，系统会显示警告信息。

实时显示您的库存检查

Leverage MongoDB Change Streams for instant notifications and visualize the data using MongoDB Atlas Charts. The code sets up a change stream to monitor new inventory checks in a collection named inventoryCheck.

Below set ChartsEmbedSDK as a variable.

Below set pushToast as a variable.

Verify that real-time notifications and dashboard updates work properly.

终结点设置

• Use MongoDB Change Streams to monitor changes in the inventoryCheck collection.

const startWatchInventoryCheck = async (dashboard, addAlert, utils) => {
    console.log("Start watching stream");
    const runs = await getMongoCollection(utils.dbInfo.dbName, "inventoryCheck");
    const filter = {
        filter: {
            operationType: "insert"
        }
    };
    const stream = runs.watch(filter);
    const closeStreamInventoryCheck = () => {
        console.log("Closing stream");
        stream.return();
    };
    try {
        for await (const change of stream) {
            console.log(change.fullDocument);
            addAlert(change.fullDocument.checkResult);
            dashboard.refresh();
        }
    } catch (error) {
        console.error("Error watching stream:", error);
    }
};

嵌入仪表盘

• 使用 MongoDB Charts 嵌入 SDK 将仪表盘集成到网络应用程序。

• 导入必要的库和上下文。

• Create an instance of ChartsEmbedSDK with your base URL.

• 定义仪表板属性并将其渲染到指定的 div 容器中。

• 启动变更流并处理带实时警报的数据更新。

实现实时警报功能

• Display success or error alerts based on the inventory check results using pushToast.

确保集成性

• 验证实时通知和仪表盘更新是否能够无缝工作。

• 保持准确的库存数据，并对差异迅速做出响应。