透過感知、制動與溝通等能力，物聯網 (Internet of Things)在各種不同的情境下拉近了機器與人類的距離。隨之而來，眾多的協定被開發出來以支援不同的物聯網應用程式，例如REpresentational State Transfer~(REST)、Constrained Application Protocol~(CoAP)、MQ Telemetry Transport~(MQTT)、MQTT For Sensor Networks~(MQTT-SN)等等。這些協定的異質性會造成所謂的互通性問題，以至於對於大眾對物聯網的接受與採納程度會有很大的影響，因此也對物聯網的拓展造成阻礙。本論文致力於解決在智慧家庭情境下的前述問題，我們提出了一個實驗性的家用物聯網閘道器來支援家中布置的物聯網裝置，不論他使用的協定是否基於網路網路協定或不基於網際網路協定。藉由實作裝置探詢、非IP協定介面、MQTT/CoAP代理、事件機制以及存取控制等等元件，我們提出的家用物聯網閘道器提供具有異質性的物聯網裝置一個具安全以及應用未知性的環境。此外，我們使用了近場無線通訊 (Near Field Communication)來提供裝置探詢時的自動化設定機制，藉此改善物聯網的易用性。規則、權限與存取控制將會具有安全性方面的問題，我們進一步的在NFC自動化設定的過程中加入交換金鑰，來改善安全性的問題。此外，為了增強互通性支援的效率，我們的平台將會是開放原始碼並且相容於知名的IoTivity框架。

With the capabilities of sensing, actuation, and communication, Internet of Things (IoT) enables close interactions between humans and machines in various kinds of scenarios. As a results, fruitful protocols are developed, such as REpresentational State Transfer~(REST), Constrained Application Protocol~(CoAP), MQ Telemetry Transport~(MQTT), MQTT For Sensor Networks~(MQTT-SN), etc., to support various kinds of IoT applications. Such heterogeneity in protocols causes interoperability issue, which could have a negative impact on peoples' acceptance and adoption of IoT and thus forestall the widespread deployment of IoT. In this thesis, we try to resolve this issue in the scenario of "Smart Home", where we propose an experimental platform of IoT home gateway to support IP-based and non-IP-based IoT devices deployed in house. By implementing the functionalities of device discovery, non-IP interface, MQTT/CoAP proxy, event listener/executor pool, and access control, the proposed home gateway provide a secure and application-agnostic environment for the heterogeneous devices. In particular, Near Field Communication~(NFC) is applied to enable auto-configuration in device discovery, which further improves the usability of IoT. Rules and permission, access control incurs security, we further improves the security with key exchanging during NFC auto-configuration. Also, To improve the effectiveness of supporting interoperability, our platform will be open-sourced and be compatible with the famous open-source IoTivity framework.

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