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1.3. Architecture

When Bluetooth devices connect with one another, a small network called a piconet is formed. There can be up to eight devices in one piconet at any one time. Even though there is a connection between devices, that connection is not always open to communication. One of the devices in the piconet will take the role of the master and the rest will be slaves. Since Bluetooth uses frequency-hopping spread-spectrum, the slave devices will synchronize their hops along with the master’s hops. This will allow the devices to continue to communicate without each device hopping over to different frequencies and losing the connection. Bluetooth devices will automatically form a connection when they come within range of one another. They can also be set up to automatically synchronize data, such as between a PDA and a computer.

If it is necessary for more than eight devices to be involved in a network, piconets can be connected together to form a scatternet. Within each piconet, one device is selected to act as a bridge to another piconet.

3 Answers

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  • c-
    Lv 7
    1 decade ago
    Favorite Answer

    When Bluetooth devices connect with one another, a small network called

    a piconet is formed. 當支援藍芽的設備相互連接時,就形成了一個小的網路,稱之為"藍芽微網"There can be up to eight devices in one piconet at

    any one time. 每個微網裏面可以同時納入八樣支援藍芽的設備Even though there is a connection between devices, that

    connection is not always open to communication. 雖然每樣設備之間有相互連接,但是這連接很少用來作為溝通之用One of the devices in

    the piconet will take the role of the master and the rest will be

    slaves. 微網裏面會有一樣設備採取"主要 (master)"角色,其餘的設備皆為"次要 (slave)"Since Bluetooth uses frequency-hopping spread-spectrum, the

    slave devices will synchronize their hops along with the master’s hops.

    因為藍芽使用的是跳頻展頻技術,所以 slave 設備會跟隨著 master 同步跳頻。This will allow the devices to continue to communicate without each

    device hopping over to different frequencies and losing the connection.

    這樣可以使所有的設備能繼續不斷的互相溝通,而不會有各自跳頻到其他頻道,造成溝通的切斷。Bluetooth devices will automatically form a connection when they come

    within range of one another. 支援藍芽的設備在偵測出有其他設備時,就會自動與對方連線。They can also be set up to automatically

    synchronize data, such as between a PDA and a computer.也可以直接設定,讓這些設備能自動 synchronize 資料,例如 pda 跟電腦之間即可如此。If it is

    necessary for more than eight devices to be involved in a network,

    piconets can be connected together to form a scatternet. 如果藍芽網路裡需要用到超過八個設備,那麼可以將不同的微網連結起來,形成一個"疊網"。Within each

    piconet, one device is selected to act as a bridge to another piconet.每一個微網裏面,都有一個設備是扮演跟另一個微網之間的橋樑。

    Source(s): me+
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  • 1 decade ago

    Bluetooth就是藍牙

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  • 1 decade ago

    1.3. 建築學當Bluetooth 設備互相連接, 一個小網路稱piconet 被形成。那裡可能隨時是八個設備在一piconet 。即使有連接在設備之間, 那連接總不是開放對通信。設備的當中一個在piconet 將採取大師的角色並且休息將是奴隸。因為Bluetooth 使用頻率hopping 傳播光譜, 奴隸設備將同步他們的蛇麻草與大師的蛇麻草一起。這將允許設備繼續通信沒有各次設備hopping 對不同的頻率和丟失連接。Bluetooth 設備自動地將形成連接當他們來臨在範圍的互相範圍內。他們可能並且被設定自動地同步資料, 譬如之間PDA 和電腦。如果它是必要為超過八個設備被介入在網路, piconets 可能一起被連接形成scatternet 。在各piconet 之內, 一個設備被選擇作為橋梁對其它piconet 。

    Source(s): 奇摩字典
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