563307 A7 B7 五、發明説明（1 ) 技術領域 本發明係有關於無線傳送系統，特別是有關於大樓內 之無線L A N或電線桿與家庭內的裝置之間的連接等、使 多個無線傳送裝置接近後再被使用之無線傳送系統者。 習知技術 習知以來，於大樓內之無線L A N或電線桿與家庭內 的裝置之間的連接等、使多個無線傳送裝置接近後再被使 用之具可行性的無線傳送系統中，於鄰近之無線傳送裝置 中，採取使用的頻道不同等之對策加以說明。 於使多個無線傳送裝置接近後再被使用之無線傳送系 統中，係即使於鄰近之無線傳送裝置中之所使用的頻道不 同，例如當利用具備了 一方之無線傳送裝置的頻道加以送 訊，再利用鄰近附近的另一方無線傳送裝置的頻道加以收 訊時，一方裝置的送訊波中之干涉波成分（瀰漫於送訊波 之兩側的頻率帶域中之不要波成分）係爲高位準，而影響 至作爲收訊之另一方裝置的頻道，而產生無法收訊之問題 點。 發明掲示 本發明之目的係爲解決前述之習知技術的問題點，即 使於使多個無線傳送裝置接近後再被使用之情況下，提供 可以使信號之收送訊無障礙地進行之無線傳送系統。 本發明係針對於利用1個主母機及1個以上之僕母機 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） (請先閱讀背面之注意事項一^寫本頁) -裝. 經濟部智慧財產局員工消費合作社印製 -4- 563307 A7 B7 五、發明説明（2 ) 所形成之群組內，在共用頻帶後而可以與群組內之子機進 行通訊之無線傳送系統，其特徵爲：具備了具有資料收送 訊手段、及與其他群組之主母機同步後而控制收送訊的時 間之群組間同步手段之主母機、及具有資料收送訊手段、 及與主母機同步後而控制收送訊的時間之群組內同步手段 之僕母機。 根據本發明的話，即使於多個無線傳送裝置接近後再 被使用之無線傳送系統中，因爲使信號之收送訊同步後再 被執行，因此，可以使資料的傳送無障礙且有效率地進行 爲實施發明之最_佳形態 以下，係爲本發明之實施形態詳細地加以說明。第1 圖係爲含有適用於本發明之無線傳送裝置之通訊系統之構 成說明圖。於群組1之領域（例如半徑1 〇 0米左右）內 ，係存在了 4個子群組領域，而於各自的子群組中，係各 自存在了主母機或是僕母機、及多個子機。 使主母機及僕母機接近（例如1 〇米）後再被設置， 各自介由未圖示之通訊電路，例如被連接於伺服器電腦上 ，且使該伺服器被連接於網際網路上。又，各子機係例如 被連接於未圖示之個人電腦上。 各子群組（1〜4 )係根據被連接於主母機或僕母機 之天線的指向性及送訊電力而使其領域被決定，子機係根 據I D而與事先決定的母機被連接。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閱讀背面之注意事項寫本頁) -裝· 經濟部智慧財產局員工消費合作社印製 -5- 563307 Α7 Β7 五、發明説明（3 ) (請先閲讀背面之注意事項寫本頁) 第2圖係顯示本發明之無線傳送裝置之硬體構造方塊 圖。基本上，母機及子機係爲同一硬體構造，而控制軟體 係不相同。類比信號處理部1 0係由既知之單一超外差式 之數位信號收送訊電路所構成，利用由頻率合成器及 VC〇電路所組成之2個PLL電路，而於任意的頻道中 ，可以進行資料的收送訊。又，於本發明中，作爲收送訊 電路之方式或變頻方式係可採用既知之任意者。 數位信號處理部2 0之第1的L S I係爲進行A / D 、D / A轉換、直接擴散、反擴散處理、緊急處理、前置 處理、訊框處理、錯誤檢測處理、相關信號檢測。而數位 信號處理部2 0之第2的L S I係爲進行S / P轉換、緊 急處理、錯誤檢測處理等。 計時器2 1係利用由第1的L S I所輸出之訊框檢測 (旗標模式檢測）信號，而被歸零後再啓動之計時器，而 C P U則係利用程式而可讀取計時器之値地被構成。該計 時器係如後所述般地與主母機之時鐘吻合地被使用。 經濟部智慧財產局員工消費合作社印製 控制部3 0係由C P U、收納了程式或資料之快閃 R Ο Μ、作爲緩衝器或作業區而被使用之R A Μ、C A Μ (連想記憶體）、L A N無線電收發兩用機、匯流排等所 構成。L A N無線電收發兩用機係具有1 〇 B A S E — T 規格等之既知的L A N界面機能，於母台之情況下，介由 電路/LAN變頻器等裝置，被連接於光纖等之高速電路 °又，於子台之情況下，係被連接於個人電腦或是H U B °由電源電路係使電源連同零交叉檢測信號一倂被輸出。 本紙張尺度適用中國國家標準（CNs ) Α4規格（210Χ297公釐） -6- 563307 A7 _____B7_ 五、發明説明（4 ) 第3圖係顯示於本發明之無線傳送系統中之群組間的 收送訊時間之說明圖。基本上，1個傳送周期係以商用電 源之零交叉點（電壓爲〇之時間）的間隔作爲基準。因此 ，若商用電源之頻率爲5 0 Η Z的話，傳送周期之周期係 爲1 0毫米秒。於1個傳送周期中，係存在了由母台傳送 資料至子台之期間，也就是固定長之下彳了訊窗及其相反期 間，也就是固定長之上行訊窗。 零交叉點係由各群組之主母親所檢測出來，根據該時 間，進行控制該群組內之收送訊的時間。因此，於各群組 之間，因爲傳送周期之時間對齊，因此，可以避開在收訊 中之子機的附近，其他群組之子機送訊後再收訊的阻礙。 又，時間檢測用之商用電源係爲由3相位交流而被提 供之情況下，當作爲商用電源而被選擇之2相位係不同於 每個主母機時，則會產生零交叉點移位而無法達到同步。 因此，於零交叉點上，利用使追加了對應電源頻率之偏移 時間的時間成爲同步時間，即使選擇了任何之2相位，亦 可確定系統的同步。所謂偏移時間，若相位不齊係爲既知 的話，雖然於各主母機可利用手動加以設定，但是若是可 以收受到由其他主母機而來的時間資訊訊框的話，利用收 訊到該訊框後再加以判斷，可以自動地檢測出相位不齊， 亦可自動地設定偏移時間。 又，群組間同步手段，係不限定於商用電源，根據從 介由通訊電路而被連接的標準時刻送訊伺服器所傳送之時 刻資訊，以控制收送訊的時間，或者是，亦有對標準時刻 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） (請先閱讀背面之注意事項寫本頁} .裝· -訂_ 經濟部智慧財產局員工消費合作社印製 563307 Α7 Β7 五、發明説明（5 ) 伺服器進行時刻詢問，來作爲控制收送訊的時間之基準， 而修正內藏時鐘之方法。藉由此等之方法，即使於無法保 證群組間之零交叉點時間的同步之電源的情況下，亦可以 取得同步。 第4圖係顯示於本發明之無線傳送系統中之群組間的 同步周期之時間之說明圖。主母機係於每個既定個數之傳 送周期（例如1 0次）執行1次「同步周期」，以進行主 母機與僕母機之時鐘的吻合。而進行該同步周期之時間係 於每個群組爲獨立的，且相位係不相同。 第5圖係顯示使用本發明之無線傳送系統之頻率帶域 之說明圖。於第5圖中，顯示了於1個群組內之中，被分 配於4個子群組（# 1〜# 4 )之頻道（A〜D )的時間 變化。作爲使用之頻帶，例如使用2 . 4 G Η z帶，而作 爲相當於1個頻道的帶域，例如使用2 Ο Μ Η ζ左右，而 作爲合計4個頻道之頻率帶域，例如使用8 Ο Μ Η ζ左右 〇 使各母機及子機係各自記錄著相同的頻率遷移表單， 利用由母台所送訊之相位信標，而使子機被指示了顯示其 次應該使用之頻率的該表單內之相位（號碼）。因此，即 使相位信標之收訊失敗，於同步周期後，利用本身可前進 1個相位而可以繼續通訊。 如第5圖所示，利用使頻道巡回，即使於特定的頻道 上產生了雜音而造成錯誤率增大，亦可以與群組內之各子 機繼續通訊。又使巡回的順序係爲任意的。 本紙張尺度適用中國國家標準（CNS ) Α4規格（21 ΟΧ 公釐） (請先閲讀背面之注意事項寫本頁) -裝·563307 A7 B7 V. Description of the Invention (1) Technical Field The present invention relates to a wireless transmission system, and in particular, relates to a connection between a wireless LAN or a telephone pole in a building and a device in a home, etc., and a plurality of wireless transmission devices. Those who use the wireless transmission system after approaching. Since the technology is known, in a feasible wireless transmission system that connects multiple wireless transmission devices to the wireless LAN or telephone pole in the building and the devices in the home, it is used in the vicinity. In the wireless transmission device, countermeasures such as different channels to be used will be described. In a wireless transmission system where a plurality of wireless transmission devices are used after being approached, the channels used in the adjacent wireless transmission devices are different, for example, when a channel having one wireless transmission device is used for transmission, When the channel of another nearby wireless transmitting device is used for receiving, the interference wave component (unwanted wave component in the frequency band that permeates the transmission wave on both sides of the transmitting wave) of one device is high. Standards, which affects the channel of the other party ’s device as a receiver, and causes problems that cannot be received. The invention indicates that the object of the present invention is to solve the problems of the conventional technology described above, and to provide wireless transmission that can make the transmission and reception of signals unobstructed even when a plurality of wireless transmission devices are approached and then used. system. This invention is aimed at the use of 1 master-master machine and 1 or more slave-master machines. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) (please read the precautions on the back first ^ write this page)- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs -4- 307307 A7 B7 V. A wireless transmission system within the group formed by the invention description (2), which can communicate with the handsets in the group after sharing the frequency band , Which is characterized by a master-master unit having a means for data transmission and transmission, and an inter-group synchronization means for controlling the time of transmitting and receiving after synchronizing with the master-master unit of other groups, and a means for transmitting and receiving data, and After synchronizing with the master and master, and controlling the time of sending and receiving messages, the slave and master in the group. According to the present invention, even in a wireless transmission system in which a plurality of wireless transmission devices are used before being approached, since the transmission and reception of signals are synchronized and then executed, data transmission can be performed without obstacles and efficiently. Best Mode for Carrying Out the Invention Hereinafter, an embodiment of the present invention will be described in detail. Fig. 1 is an explanatory diagram of the structure of a communication system including a wireless transmission device applicable to the present invention. Within the realm of group 1 (for example, a radius of about 100 meters), there are 4 subgroup realms, and in each subgroup, there are master and slave machines, and multiple slave machines. . The master and slave machines are brought close to each other (for example, 10 meters) and then set. Each is connected to a server computer via an unillustrated communication circuit, and the server is connected to the Internet. Each slave unit is connected to a personal computer (not shown), for example. Each sub-group (1 to 4) is determined in accordance with the directivity of the antenna connected to the master-slave or slave-slave and the transmission power, and its domain is determined. The slaves are connected to the previously-determined master according to ID. This paper size is in accordance with Chinese National Standard (CNS) A4 (210X297 mm) (Please read the notes on the back to write this page)-Packing · Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economy-5-563307 Α7 Β7 V. Description of the invention (3) (Please read the notes on the back to write this page) Figure 2 is a block diagram showing the hardware structure of the wireless transmission device of the present invention. Basically, the master and slave are the same hardware structure, but the control software is different. The analog signal processing unit 10 is composed of a known single superheterodyne digital signal transmitting and receiving circuit, and uses two PLL circuits composed of a frequency synthesizer and a VC0 circuit. Send and receive information. Further, in the present invention, any one of known methods may be adopted as a method of transmitting and receiving a circuit or a frequency conversion method. The first L S I of the digital signal processing unit 20 is for A / D, D / A conversion, direct diffusion, anti-diffusion processing, emergency processing, pre-processing, frame processing, error detection processing, and related signal detection. The second L S I of the digital signal processing unit 20 is S / P conversion, emergency processing, error detection processing, and the like. Timer 2 1 is a timer that uses the frame detection (flag mode detection) signal output by the first LSI and is reset after it is reset to zero. The CPU uses a program to read the timer. The ground is composed. This timer is used in accordance with the clock of the master and master as described later. The Ministry of Economic Affairs, Intellectual Property Bureau, Employee Consumer Cooperative Printing Control Department 30 is a CPU, flash ROM OM containing programs or data, RA Μ, CA Μ (connected memory) used as a buffer or work area , LAN radio transceiver, bus, etc. The LAN radio transceiver has a well-known LAN interface function such as the 10BASE-T specification. In the case of a master station, it is connected to a high-speed circuit such as an optical fiber through a circuit / LAN inverter and other devices. In the case of a sub-station, it is connected to a personal computer or a hub. The power supply system causes the power supply to be output together with the zero-cross detection signal. This paper size applies Chinese National Standards (CNs) A4 specification (210 × 297 mm) -6- 563307 A7 _____B7_ V. Description of the invention (4) Figure 3 shows the transmission between groups in the wireless transmission system of the present invention Illustration of the time of the message. Basically, one transmission cycle is based on the interval of the zero crossing point (the time when the voltage is 0) of the commercial power supply. Therefore, if the frequency of the commercial power supply is 50 Η Z, the period of the transmission cycle is 10 milliseconds. In one transmission period, there is a period during which data is transmitted from the mother station to the child station, that is, the window under the fixed length and the opposite period, that is, the uplink window with fixed length. The zero crossing point is detected by the main mother of each group, and according to the time, the time for receiving and sending messages in the group is controlled. Therefore, because the time of the transmission cycle is aligned among the groups, the obstacles of the slaves in the receiving group and the receiving of the slaves in other groups can be avoided. In addition, when a commercial power supply for time detection is provided by a three-phase AC, when the two-phase system selected as a commercial power supply is different from each master-master unit, a zero-crossing point shift may occur, and the Reach synchronization. Therefore, at the zero crossing point, the synchronization time can be determined by using the time with the offset time corresponding to the power supply frequency added, even if any two phases are selected. The so-called offset time is known if it is out of phase. Although it can be set manually on each master and master machine, if it can receive the time information frame from other master and master machine, use the receiver to the frame. After judging, the phase mismatch can be detected automatically, and the offset time can also be set automatically. In addition, the means for synchronizing between groups is not limited to a commercial power supply. According to the time information transmitted by a standard time transmission server connected via a communication circuit, to control the time for sending or receiving, or there are, For the standard time, this paper size applies the Chinese National Standard (CNS) Α4 specification (210 × 297 mm) (Please read the precautions on the back to write this page}. Packing-Ordering _ Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and Consumer Cooperatives 563307 Α7 Β7 V. Description of the invention (5) The server makes inquiries at all times as a reference to control the time of sending and receiving messages, and corrects the built-in clock. By this method, even if the zero crossing between groups cannot be guaranteed Synchronization can also be achieved in the case of a point-in-time synchronization power supply. Figure 4 is an explanatory diagram showing the time of the synchronization cycle between groups in the wireless transmission system of the present invention. The master and the master are connected to each predetermined number. In the transmission cycle (for example, 10 times), execute a "synchronization cycle" to match the clocks of the master and slave machines. The time for performing the synchronization cycle is in each group. It is independent and the phase systems are different. Fig. 5 is an explanatory diagram showing the frequency band of the wireless transmission system using the present invention. In Fig. 5, it is shown in one group and is allocated in Time variation of channels (A ~ D) of 4 subgroups (# 1 ~ # 4). As a frequency band to be used, for example, a 2.4 G Η z band is used, and as a band equivalent to one channel, for example, About 2 0 Μ Η ζ, and as a frequency band of a total of 4 channels, for example, about 8 〇 Μ Η ζ is used to make each master and slave unit record the same frequency migration form, and use the information sent by the master station. Phase beacon, so that the handset is instructed to display the phase (number) in the form of the frequency that should be used next. Therefore, even if the reception of the phase beacon fails, after the synchronization period, it can advance one phase by itself. You can continue to communicate. As shown in Figure 5, by using the channel tour, even if noise is generated on a specific channel and the error rate increases, you can continue to communicate with the slaves in the group. The order is arbitrary. Zhang scale applicable Chinese National Standard (CNS) Α4 Specifications (21 ΟΧ mm) (Please read the back of the precautions written on this page) - installed ·
、1T 經濟部智慧財產局員工消費合作社印製 -8- 563307 A7 _______B7 五、發明説明（6 ) 第6圖係顯示於本發明之無線傳送系統中之資料收送 訊之流量的說明圖。1個傳送（通訊）周期係具有固定長 之下行訊窗及上行訊窗，而於下行訊窗中，係爲各母機對 於各子機送訊出信標信號。而於該信標訊框係使母機之時 鐘的時刻資訊被寫入，而各子台係利用如後所述之方法， 根據該信標信號，而使本身之時鐘與母機的相吻合。各子 機係根據該時鐘而於被指定之時間，進行送訊。 於fe標號，係被包含了分配上行訊窗內之上行資料 流之子機的資訊，而採用了利用信標信號，使被許可的子 機進行送訊之T D Μ Α方式。而分配方式係如後所述。 於下行訊窗，係例如存在了 4個下行資料流，各自都 可送訊至任意的子機。而母機係根據利用電路（L A N ) 所收訊的訊息包之順序，如下所述地分配下行資料流。 第1 0圖係顯示於本發明中之母機的送訊指示控制例 之說明圖。如第1 0圖所示，於每個子機，設置了多個對 應於送訊訊息包的種類之提示，而於無線時槽傳送出訊息 包之時，提示選擇控制部係利用既定之優先順序，選擇提 示後而將訊息包傳送出去。 藉此，例如使應答訊息包爲優先的話，而使應答訊息 包被早一步地送訊，以達到上位協定中之其次的資料訊息 包之傳送出去的時間被提早的效果，因而使通訊效率被改 善。又，若是使被要求實時性之訊息包爲優先的話，可以 確保被訊息包化後的聲音等之傳送所要求的帶域，因而可 以確保因應於轉送資料的內容之品質。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閲讀背面之注意事項^^寫本頁) 裝· 訂 經濟部智慧財產局員工消費合作社印製 -9 - 563307 A7 B7 五、發明説明（7 ) 又，利用根據子機而變更朝每個子機之時槽分配率， 對於每個子機之通訊優先度亦可以變更。 再者，利用對應於被保存在每個子機之提示的資料量 ，而選擇所送訊之子機，可以確保對應於資料量的帶域、 及提升無線帶域之利用率。 於上行訊窗之最初期間中，係使對於下行訊窗之各下 行資料流的A C K信號各自於不同的時間被返送回來。母 機於無法收訊A C K之情況下，係於下次的周期進行再傳 送。然而，於在既定次數再傳送失敗之情況下，則放棄該 訊框。又，於廣播的情況下，係不會進行再傳送。 A C K期間之後，係存在了 2個上行資料流，各自爲 使送訊許可之子機進行送訊。於母機中，在收訊失敗之情 況下，指定同一訊框號碼後再次分配上行資料流。又，連 接於網際網路之情況下，則因爲與平均値相較，下行資料 流係資料量多，因此，訊框亦係以下行者爲較長。 第7圖係顯示於本發明之無線傳送系統中之同步周期 之流量的說明圖。於同步周期中，首先，當主母機於下行 訊窗內檢測出零交叉點之時間的時候，對於各僕母機，利 用各自目前在使用中之頻道，傳送出主信標。於該主信標 係被寫入了主母機之時鐘的時刻資訊。而各僕母機係於同 步周期之下行訊窗中，收受了主信標，因而使僕母機之時 鐘與主母機的相吻合。 其後，各母機係傳送出相位信標，而更新各子群組中 之所使用的頻道。於同步周期之上行訊窗中，母機係收集 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） (請先閱讀背面之注意事項^^寫本頁) 裝· 、11 經濟部智慧財產局員工消費合作社印製 -10- 563307 A7 B7 五、發明説明（8 ) 了從子群組內之全部子機的要求（送訊要求）資訊。 (請先閲讀背面之注意事項寫本頁) 又，僕母機係連續了預期的次數後，仍無法收訊主信 標，或是持續了預期的時間後，仍無法收訊之情況下，則 判斷爲主母親之故障。其後，根據預先被設定之優先順序 ，使被特定的一個僕母機相當於主母機而開始動作，開始 代理產生故障之主母機的動作。藉此，雖然歸屬於已故障 之主母機之子群組的動作係爲停止，而使系統縮減，但是 可以取得避開群組內之全系統停止的效果。 第8圖係顯示於本發明之群組內之時間同步方法的說 明圖。各無線傳送裝置係利用軟體而具有時時機能。例如 ，母機係由自身之時鐘讀取出時刻資訊（t 〇 ),且立刻 作成信標訊框後再送訊。信標訊框係由既定長之序言及周 圍構造之訊框所構成，而於該訊框之資料領域中，係使時 刻資訊（t 〇 )被寫入。 經濟部智慧財產局員工消費合作社印製 於子機中，係於收訊訊窗中，使信標被收訊之情況下 ，在信標之序言區間之任意時間點上確立同步，而進行訊 框（之排頭的旗標模式）之檢測。當訊框被檢測出來之時 ，第2圖之硬體計時器2 1係被歸零後再啓動，而開始計 時。 於子機中，當訊框之收訊正常地進行完了之時，使根 據程式之處理被開始，並讀取出計時器2 1之計時値。程 式係於被寫入在訊框內之時刻資訊（t 0 ),加算從讀出 時鐘時刻直至檢測訊框之延遲時間t p及計時器2 1之計 時時間t t後而算出現在時間（t 3 )後，將自身的時鐘 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -11 - 563307 A7 B7 五、發明説明（9 ) 更新爲t 3。 由於時間t p、t t各自係爲依賴硬體或軟體而被預 先設定的時間，因此，藉由上述方式，可以比零交叉點檢 測更高精密度地使母機的時鐘及子機的時鐘相吻合。 利用以上的方式，根據由主母機之主信標，使僕母機 之時鐘係與主母機的相吻合，根據由各母機朝子機之信標 ，使各子機的時鐘係與各母機的相吻合。再者，利用正確 地取得各裝置的時鐘同步，而可以使傳送之空白時間（時 差）減少，以提升傳送效率。 第9圖係顯示於本發明中之子機優先度的狀態變化之 狀態遷移圖。於本發明之系統中，母機係只於同步周期， 收集由子機之送訊要求，而於其他的周期係不加以收集。 又，上行訊窗之上行資料流係例如因爲只有2個，爲了將 此有效率地分配於子機，母機必須進行子機的優先度控制 ，使送訊權利給予優先度高之子機般地加以控制。 於實施例中，優先度係如圖面所示，具有「高」「中 」「低」「非接觸」4個級數。利用關閉電源等而使要求 訊息包係持續了既定次數後仍未收訊之情況下，子機係成 爲「非接觸」之狀態，當電源開啓後，而從子機收訊了要 求訊息包之情況下，係移行變成爲「低」級數。 於「低」或是「中」級數，收訊了送訊要求之情況下 ，係移行變成爲「高」級數，而於「高」級數下，收訊了 送訊要求之情況，或是具有送訊訊息包或是收訊訊息包之 情況下，係仍停留於「高」級數。又，於「高」級數下， 本紙張尺度適用中國國家標準（CNS ) Μ規格（21〇χ297公釐） (請先閲讀背面之注意事項^^寫本頁) •裝·Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs -8- 563307 A7 _______B7 V. Description of Invention (6) Figure 6 is an explanatory diagram showing the flow of data transmission and reception in the wireless transmission system of the present invention. One transmission (communication) period is a downlink signal window and an uplink signal window of a fixed length, and in the downlink signal window, a beacon signal is sent from each master to each slave. In the beacon frame, the time information of the master clock is written, and each slave station uses the method described below to make its own clock coincide with the master clock according to the beacon signal. Each handset sends a message at a designated time based on the clock. The reference numeral fe refers to the information of the slaves that allocate the uplink data stream in the uplink window, and adopts the T D Μ Α method that uses the beacon signal to allow the licensed slaves to transmit. The allocation method is described later. In the downlink signal window, for example, there are four downlink data streams, each of which can send a message to any slave. The master unit allocates downlink data streams as described below according to the order of the message packets received by the circuit (L A N). Fig. 10 is an explanatory diagram showing a transmission instruction control example of the master unit in the present invention. As shown in FIG. 10, a plurality of prompts corresponding to the types of transmission message packets are set for each slave, and when the wireless time slot transmits a message packet, the prompt selection control unit uses a predetermined priority order. , Select the prompt and send the message packet. By this, for example, if the response message packet is given priority, the response message packet is sent earlier, so as to achieve the effect that the transmission time of the next data message packet in the higher-level protocol is earlier, so that the communication efficiency is reduced. improve. In addition, if priority is given to a message packet requiring real-time performance, a band required for the transmission of the voiced packet and the like can be ensured, and thus the quality of the content corresponding to the transferred data can be ensured. This paper size is in accordance with Chinese National Standard (CNS) A4 (210X297 mm) (Please read the notes on the back ^^ write this page) Binding and ordering Printed by the Intellectual Property Bureau Staff Consumer Cooperatives of the Ministry of Economic Affairs-9-563307 A7 B7 V. Description of the Invention (7) In addition, by changing the slot allocation rate toward each sub-machine according to the sub-machine, the communication priority for each sub-machine can also be changed. Furthermore, by using the amount of data corresponding to the reminder stored in each slave, and selecting the slave to send, it is possible to ensure the band corresponding to the amount of data and improve the utilization of the wireless band. During the initial period of the uplink window, the A C K signals for the downstream data streams of the downlink window are returned at different times. If the master cannot receive A C K, it will retransmit in the next cycle. However, if the retransmission fails a predetermined number of times, the frame is discarded. In the case of broadcasting, no retransmission is performed. After the A C K period, there are two uplink data streams, each of which is to send the transmission to the sub-units with transmission permission. On the master unit, in the case of a reception failure, the same frame number is assigned and the uplink data stream is allocated again. In addition, in the case of connection to the Internet, because the amount of data in the downstream data stream is larger than that in the average stream, the frame is also longer in the following lines. Fig. 7 is an explanatory diagram showing the flow of the synchronization period in the wireless transmission system of the present invention. In the synchronization period, first, when the master and the master detect the time of the zero crossing point in the downlink window, the master and the slave use the channels currently in use to transmit the master beacon. The time information of the master clock is written in the master beacon. Each slave machine is in the downlink signal window of the synchronization cycle and receives the master beacon, so that the clock of the slave machine and the master machine match. Thereafter, each master unit transmits a phase beacon and updates the channel used in each subgroup. In the uplink window of the synchronization cycle, the mother machine collects the paper size applicable to the Chinese National Standard (CNS) A4 specification (210 × 297 mm) (please read the precautions on the back first ^^ write this page) Printed by the Consumer Cooperative of the Property Bureau -10- 563307 A7 B7 V. Invention Description (8) Information on the requirements (delivery requirements) of all slaves in the subgroup. (Please read the notes on the back page first to write this page.) And, if the slave machine cannot receive the main beacon after the expected number of times in a row, or if it still cannot receive the message after continuing the expected time, then Judging the failure of the primary mother. After that, according to a preset priority order, a specified slave-master machine is equivalent to the master-master machine and starts to operate, and the action of the master-master machine that has failed is started. By this, although the action of the subgroup belonging to the failed master and parent machine is stopped to reduce the system, the effect of avoiding the whole system stop in the group can be obtained. Fig. 8 is an explanatory diagram showing a time synchronization method in a group of the present invention. Each wireless transmission device has a timing function using software. For example, the master reads the time information (t 0) from its own clock, and immediately creates a beacon frame before sending it. The beacon frame is composed of a preamble of a predetermined length and a frame of the surrounding structure, and in the data field of the frame, the time information (t 0) is written. The Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs is printed on the handset, which is located in the receiving message window. When the beacon is received, the synchronization is established at any time point in the preamble interval of the beacon and the message is sent. Detection of the frame (the flag mode of the head). When the frame is detected, the hardware timer 2 1 in Figure 2 is reset to zero and then started to start counting. In the slave, when the reception of the frame is completed normally, the processing according to the program is started, and the timing of the timer 21 is read out. The program is based on the time information (t 0) written in the frame, and the current time (t 3) is calculated after adding the delay time tp from the time of reading the clock to the detection frame and the time tt of the timer 21 1. After that, the paper size of its own clock was applied to the Chinese National Standard (CNS) A4 specification (210X297 mm) -11-563307 A7 B7 5. The invention description (9) was updated to t 3. Since the times t p and t t are preset times depending on hardware or software, the above-mentioned method can make the clock of the master and the clock of the slave match more accurately than the zero-cross point detection. In the above manner, according to the master beacon of the master and the master, the clock system of the slave and the master match the master and the master, and according to the beacon from each master to the slave, the clock of each slave and the master match . Furthermore, by correctly obtaining the clock synchronization of each device, the blanking time (time difference) of transmission can be reduced to improve transmission efficiency. Fig. 9 is a state transition diagram showing the state changes of the priorities of the slaves in the present invention. In the system of the present invention, the master machine only collects the transmission request from the slave machine in the synchronization cycle, and does not collect it in other cycles. In addition, because there are only two uplink data streams in the uplink window, in order to efficiently allocate this to the slaves, the master must control the priority of the slaves, so that the right to send messages is given to the slaves with high priority. control. In the embodiment, as shown in the figure, the priority has four levels of "high", "medium", "low", and "non-contact". When the request message packet is not received after the power is turned off for a predetermined number of times, the slave unit becomes a "contactless" state. After the power is turned on, the slave unit receives the request message packet. In this case, the transition becomes a "low" level. In the case of "low" or "medium" grades, when the transmission request is received, the transition becomes a "high" grade, and in the "high" grade, the transmission request is received. In the case of a sending message package or a receiving message package, the system still stays at the "high" level. In addition, under the "high" grade, this paper size applies the Chinese National Standard (CNS) M specification (21 × 297 mm) (Please read the precautions on the back first ^ Write this page)
、1T 經濟部智慧財產局員工消費合作社印製 -12- 563307 A7 B7 五、發明説明（1〇 ) (請先閲讀背面之注意事項^^寫本頁) f吏送訊要求無法收訊、或沒有送訊訊息包及收訊訊息包， 而使上行之空時槽連續1秒之情況下，則移行變成爲「中 」級數，更甚者，空時槽又連續1秒之情況下，則移行變 成爲「低」級數。 於同一級數中具有多個子機之情況下，依序地分配時 槽。又，具有「中」級數之子機的情況，即使有「高」級 數之子機，亦分配最低2 0 %的比例之時槽至「中」級數 。而「低」級數之子機中，係只於沒有「高」「中」級數 之子機的情況下，進行分配。 產業上的可利用忤 經濟部智慧財產局員工消費合作社印製 本發明於利用1個主母機及1個以上之僕母機而被形 成之群組內中，具備了具有與其他群組之主母機同步後而 控制收送訊時間之群組間同步手段之主母機，及具有與主 母機同步後而控制收送訊時間之群組內同步手段之僕母機 。因此，根據本發明的話，因爲使信號的收送訊同步再被 執行，因此，即使於使多個無線傳送裝置接近後再被使用 之無線傳送系統中，亦可以達到使資料的傳送無障礙且有 效率地進行之效果。 圖面簡單說明 第1圖係爲適用於本發明之通訊系統之構成說明圖。 第2圖係顯示本發明之無線傳送裝置之硬體構造方塊 圖。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -13- 563307 A7 ________B7 五、發明説明（11 ) 第3圖係顯示於本發明之群組間的收送訊時間之說明 圖。 第4圖係顯示於本發明之群組間的同步周期之時間之 說明圖。 第5圖係顯示使用本發明之系統之頻率帶域之說明圖 〇 第6圖係顯示於本發明中之資料收送訊之流量之說明 圖。 第7圖係顯示於本發明中之同步周期之流量的說明圖 〇 第8圖係顯示於本發明之群組內之時刻同步方法的說 明圖。 第9圖係顯示於本發明中之子機優先度狀態變化之狀 態遷移圖。 第1 0圖係顯示於本發明中之母機的指示控制例之說 明圖。 (請先閲讀背面之注意事項^^寫本頁) 經濟部智慧財產局8工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -14-Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs -12- 563307 A7 B7 V. Description of the invention (1〇) (Please read the precautions on the back ^ ^ write this page) f Request for sending the message cannot be received, or There is no sending message packet and receiving message packet, and if the uplink space-time slot is continuous for 1 second, the transition becomes the "medium" level, and even more, if the space-time slot is continuous for 1 second, The transition becomes a "low" progression. When there are multiple slaves in the same stage, the time slots are allocated sequentially. Also, in the case of a "medium" series of sub-machines, even if there is a "high" series of sub-machines, a time slot with a minimum ratio of 20% is allocated to the "medium" series. The "low" series of sub-machines are allocated only when there are no "high" and "medium" series of sub-machines. Industrially available, printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The present invention includes a master-master machine with other groups in a group formed by using one master-master machine and one or more slave-master machines. After synchronization, the master-master unit for inter-group synchronization means that controls the sending and receiving time, and the slave-master unit that has the synchronization means within the group that synchronizes with the master-master and controls the sending and receiving time. Therefore, according to the present invention, since the transmission and reception of signals are synchronized and executed again, even in a wireless transmission system in which a plurality of wireless transmission devices are approached and then used, it is possible to achieve data transmission without obstacles and The effect is carried out efficiently. Brief Description of the Drawings Fig. 1 is an explanatory diagram of the structure of a communication system applicable to the present invention. Fig. 2 is a block diagram showing the hardware configuration of the wireless transmission device of the present invention. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -13- 563307 A7 ________B7 V. Description of the invention (11) Figure 3 is an explanatory diagram showing the time of receiving and sending messages between the groups of the present invention . Fig. 4 is an explanatory diagram showing the timing of the synchronization period between groups in the present invention. Fig. 5 is an explanatory diagram showing the frequency band of the system using the present invention. Fig. 6 is an explanatory diagram showing the flow of data transmission and reception in the present invention. Fig. 7 is an explanatory diagram of the flow of the synchronization period shown in the present invention. Fig. 8 is an explanatory diagram of the time synchronization method shown in the group of the present invention. Fig. 9 is a state transition diagram showing a change in the priority status of a slave unit in the present invention. Fig. 10 is an explanatory diagram showing an example of instruction control of the master unit in the present invention. (Please read the precautions on the back ^^ first write this page) Printed by the 8th Industrial Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) -14-