OPERATIONAL DESCRIPTION

FCC ID: KBCIX260P-AC580BT

Operational Description

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FCCID_543190

WRAP THOR Implementation Options Introduction WRAP THOR™ is a small Bluetooth™ module that offers easy integration and wireless application development possibilities. It has 100m range, small power consumption and UART/USB interfaces for hardware integration. Implementation Approaches When creating wireless systems, the designer should carefully think what kind of logic he needs for his application. In the most simple case this would be the division of product into pairs and just replacing the cable between the chosen pairs. In this case the pairs are configured already in the production line and cannot be changed by the end-user. In a more complex case there might not be such a separation of products into preconfigured pairs; The devices might want to communicate more or less arbitrarily with different Bluetooth™ devices and this communication logic has to be implemented somewhere. This brings up the solution concepts of autonomous Bluetooth™ modules, non-autonomous Bluetooth™ modules and hybrids. These are explained in the following chapters. Solution 1. Autonomous Bluetooth™ Modules with Host The simple case of pre-configured device pairs falls into this category. The WRAP THOR™s can be pre-paired in the production line and when they are integrated in the system, they are completely transparent. This means that the host-system does not even know that the cable has disappeared from its UART and been replaced with a Bluetooth™ communications module! In this solution the WRAP THOR™s contain Bluetooth protocol firmware alongside with the software needed for establishing wireless serial link with the other device. Solution 1.

Solution 2. Autonomous Bluetooth™ Modules without Host In this case some new sensor, meter or equivalent device is equipped with wireless Bluetooth™ interface. Since WRAP THOR™ has I/O the data can be read or set with this hardware interface and all the needed analyzing and transmission logic is inside WRAP THOR™. Solution 2. Solution 3. Non-autonomous Bluetooth™ module This is the case where a host system that is to be equipped with Bluetooth™ functionality needs to perform some serious application level logic and services. In this case the WRAP THOR™ module is integrated with only the Bluetooth™-level functionality but no pre-configured connections or pairings exist. All the connection establishing logic, device inquiry (finding other Bluetooth™ devices), device enumeration and data transmission is initiated from the host system application logic. Solution 3.

Solution 4. Hybrid This is silimar to the solution 2, where a host system that is to be equipped with Bluetooth™ functionality needs to perform some serious application level logic and services. The difference is that the host system cannot sustain Bluetooth™ upper layers. In this case roles are divided between WRAP THOR™ and host system. Host system communicates with BlueGiga WRAP THOR ASCII Interface with WRAP THOR™ module. Using this solution no Bluetooth specific functionality is needed in the host system whatsoever but still the Bluetooth functionality can be accessed! Solution 4.

Summary In the table below the different approaches for implementing wireless Bluetooth connections are shown. There are some high level use case scenarios and implementation details so that customer can consider his approach more carefully. These use case scenarios are easily modified to support all kinds of different wireless services. Integration location and what Solution Example Use is needed WRAP Host Type Case Hardware THOR System Interface software software Simple 1:1 Autonomous connection None None Bluetooth UART/USB between (Pre- (Bluetooth is Module with integration predefines Installed) transparent) Host devices New sensor Autonomous apparatus that Bluetooth Application I/O uses wirelss None Module with Logic integration Bluetooth Host interface Arbitrary connections between all kinds Non- Bluetooth of devices, None autonomous Upper stack UART/USB enumeration, (Pre- Bluetooth + Application integration inquiries, Installed) Module Logic Bluetooth profiles (LAN Access points etc...) Applications where complex logic is needed but the host system does not Application Application UART/USB Hybrid offer possibilities Logic Logic integration to incorporate upper layers of the Bluetooth stack


Document Created: 2004-10-19 18:52:33
Document Modified: 2004-10-19 18:52:33
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