1241537 玖、發明說明： 【發明所屬之技術領域】 本發明是有關於一種警示系統，特別是指一種用於海 上箱網的水下聲學警示系統。 5 10 15 【先前技術】 近年來因為沿岸海洋漁業資源曰漸枯竭、陸上魚塩超 抽地下水造成沿海地層下陷、因應加入WT〇後對傳統漁 業之衝擊，以及國際上施行二百海浬經濟海域，所造成遠 洋漁業捕撈範圍之限制，再加上挪威鮭魚箱網養殖成功行 銷全世界，成為許多國家發展海上漁業的最佳借鏡，海上 箱網養殖已經成為國際未來之趨勢。 目鈾我國已將箱網養殖列入國家重點漁業之一，△灣 部分離島所具備優越的自然環境條件（例如小琉球、彰湖 等）’非常適合發展海上箱網養殖，而箱網養殖也成為養 殖漁業中最被看好的高經濟產業。 < 、但疋，相網養殖並非無往不利，由於養殖區主要是1 海上’且養殖魚類多為高經濟價值之魚類（例如鮪魚、^ 鱺、石斑魚等料理高經濟價值的海產），而這類魚種亦j :豚：：要食物之一 ’所以常吸引海豚接近網具偷食。兔 此’中華民國專利公告第 义 之方法… …37864號揭不-種『驅離海海 、』’利用热害的主動式聲納 降低經濟❹與娜料之_衝突。 以 上述所揭示的方法 3 脉的「回聲定位」二 發出寬頻雜訊來嶋 」…❿使其無法接近箱網養殖的網具 20 1241537 ’或其天敵（例 而達到驅離的 偷食，另外有些方法則以高分貝的單頻雜音 如虎鯨）的聲音，來使鯨豚感到不適或懼怕， 效果。 5 10 15 箱網養殖業者所遭受到的挑戰還不僅於此，除上 舉的録豚偷食之外，還包括人類行為的破壞，主要是 海上箱網養殖業所養殖的魚類，皆為高經濟價值之&類， 且由於人力無法長時間守衛於海上箱網區，因此時常引起 有心人親覦，利用晚上在夜色掩護下，駕敬類如舶、艇等 之小型機動漁船，悄悄地駛向箱 :不勞而獲地作出違法犯紀之事，最常見者即二 仏值之魚群遭竊，以及網具被破壞等現象。 然而’以主動聲納來對動物作驅離的動作，並不適用 於被人為破壞、偷竊的箱網養殖業，且此類裝置並無偵測 入侵者的功能，只能以設定的時間間距做聲音的播放，故 無法達到保護箱網養殖區的能力。以我國小琉球為例，每 年遭到竊魚及破壞網具的損失即達三千多萬（統計期間為 8 2003) ’ 直至目a $止都沒有有效的防治辦法。 【發明内容】 因此’本發明之目的’是在提供一種負起保護養殖漁 民資產的水下聲學警示系統。 於疋，本發明之水下聲學警示系統，包含一設置於海 上的監控裝置，及一設置於陸地上的警示裝置。 該監控裝置，包括一殼體、一感測元件、一訊號放大 器、-無線電發射器、-觸發器，及一電源供應器。 20 1241537 該殼體是可浮於海面上的密閉容器，並圍繞界定出一 谷置空間。該感測元件與該殼體連接，並位於水面下，可 用以接收海中的聲音訊號。該訊號放大器位於該容置空間 中，並與該感測元件電連接，可放大該感測元件所接收到 之訊號。該無線電發射器與該訊號放大器電連接，用以傳 迗聲音訊號。該觸發器位於該容置空間中，並分別與該無 線電發射器及該訊號放大n電連接，用以判斷該訊號放大 器之訊號是否需要傳送至該無線電發射器。該電源供應器 設置於該容置空間中，並與上述各電器元件電連接，可提 供上述之電氣元件運作時所需之電源。 該警示裝置包括一無線電接收器、一資料處理器、一 啟動器，及一警示器。 孩無線電接收器可用以接收該無線電發射器所發出 之聲音訊號。該資料處理器與該無線電接收器電連接，可 即時處理該聲音訊號的判斷及資料分析，並發出一啟動訊 號。該啟動器與該資料處理器電連接，可接收該啟動訊 號，並輸出一大電流。該警示器與該啟動器電連接，並受 該啟動器之大電流驅動，可發出馨告化泰。 本發明之功效在於藉由該感測元件接收到不尋常之 聲音訊號時，利用該訊號放大器將訊號放大，並經該觸發 器判讀後，藉由該無線電發射器發出訊號至陸地上的無線 電接收器接收，經該資料處理器作資料分析後，發出啟動 訊號予該啟動器，該啟動器再輪出一大電流驅動該警示器 發出警告信號，以達到即時警報的效果。 1241537 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之較佳實施例的詳細說明中，將可清楚 的明白。 參閱圖1，本發明之水下聲學警示系統3，包含至少 一设置於海上的監控裝置31，以及一設置於陸地上的警示 叙置32。在此，應注意的是，本較佳實施例是以該水下聲 學警不系統3，應用於海上箱網養殖為例來作說明，但實 際實施時，並不僅限於海上箱網養殖，亦可作為其他用途。 配合參閱圖2、3，該監控裝置31是以錨錠的方式， 固定於海上箱網區旁，並包括一殼體311、一感測元件 312、一訊號放大器313、一無線電發射器314、一觸發器 3 1 5 ’及一電源供應器3丨6。 該殼體311是一可浮於海面上的密閉容器，並圍繞界 定出一容置空間310。該感測元件312與該殼體311連接， 並位於水下一公尺的位置，可用以接收海中的聲音訊號。 在本較佳實施例中’該感測元件312為一水下麥克風，可 全方向性地接收水中聲音，且其所接收之訊號頻率範圍是 由 10Hz 至 25KHz。 該訊號放大器313位於該容置空間310中，並與該感 測元件312電連接，可放大該感測元件312所接收到之訊 號，且該訊號放大器313之頻率增益為12dB至l5dB。該 無線電發射器314與該訊號放大器313電連接，可用以傳 送經該訊號放大器313放大之聲音訊號，且該無線電發射 1241537 口口 3U所發射之聲音頻率範圍是由⑽Hz至條出。 口亥觸發器3 1 5位於續裳詈处門^n山 於^置工間31G中，並分別與該盔 以电又射益3H及該訊號放大器313電連接 訊號放大器313之气f卢是否值、、，φ 耗玄 5 10 15 〈Λ5 虎疋否而要傳运至該無線電發射哭 叫。亦即該感測元件312所接收到之聲音訊號，必須: 足_發器315的觸發門植，聲音訊號才能經由該 發射器314發射出去。 电 在本較佳實施例中，該訊號放大器313可將該感測元 件312所接收之聲音放大至該觸發器315可判讀的範圍， ^訊號強度超過該觸發器315上所設定的觸發門檀值並持 績超過所設定的時間’則聲音訊號將藉由該無線電發射器 314傳达至陸上的警示裝置32。其申，該觸發器SB之觸 發門檻值與持續觸發時間的限制皆為可調整式，可依實際 狀況或是監控對象的不同來調整觸發門檻。 該電源供應器316位於該容置空間31〇中，並與上述 之電器兀件（該感測元件312、該訊號放大器313、該無線 電發射器314，及該觸發器315)電連接，可提供前述電器 元件於運作時所須之電源。在本較佳實施例中，該電源供 應器316為一可輸出12ν電壓的充電電池，但實際實施 時，並不限於本實施例所揭露。 在本較佳實施例中，該監控裝置31更包括一設置於 該殼體311上之太陽能板317，該太陽能板317是由多晶 矽結構所製成並與該電源供應器316電連接，可將接收之 太陽能轉換為電能之後，提供0至35W的供應功率對該電 20 1241537 31之電 源供應為316進行充電，以確保該海上監控裝置 力不會短缺。 5 10 15 除此之外，該監控裝置31更包括—感光器318，該感 “ 318是分別與該電源供應器316、該無線 哭 及該訊號放大器313電連接，可依據外界光源強弱^ 乍為啟閉該監控裝置31的開關。亦即該監控裝置Μ是按 現場日照情況作為開啟或關閉的依據，而且也可避免曰間 業主進行健魚或靠近海上箱網養殖區所產生的—些誤觸 ㈣狀況，同時也可以節省海上匱乏的電力。值得一提的 是’該感光器318控制啟閉該監控裝置31的開關時間， 也可以設計為可調整式，即啟閉時間可由業者自行調配。 惟，此項技術係熟悉該項技藝者可輕易實施與轉用，且已 見揭於其他領域，故於此不再對其詳細構造費述。 该警不装置32包括一無線電接收器32卜一資料處理 器322、一啟動器323，及一警示器324。 該無線電接收器321可用以接收該無線電發射器314 所發出之聲音訊號。該資料處理器322與該無線電接收器 321包連接’可即時自動化分析處理該無線電接收器如 所接收到聲音訊號，並進一步作訊號判斷及資料分析，且 該聲塵值之判別頻率是由峨冗至。若分析後之聲 音訊號’確定為偷盜漁船，則由該資料處理器322發出一 啟動訊號予該啟動器323。 在本較佳貫施例中，該資料處理器322是一個人電 腦，並以「LabVIEW」程式語言來撰寫控制程式，以建立 20 1241537 方便的人機介面來溝通軟、硬體，該資料處理器本身 主要是用來判斷海上監控裝置31所發出的無線電訊號， 是否足以構成發佈警報的條件。若條件符合，則經由該個 人電腦送出一個訊號，來啟動該啟動器323。而要能以程 5 式控制就必須依數據來定義程式所需的參數，在本較佳實 施例中，人機介面程式所需的兩個主要參數，分別為第一 階段的觸發門檻值㈣，及第二階段的時間參數，這兩個 值與聲源（偷盜漁船）及環境噪音有密切關係，必須藉由足 夠的量測才能了解個別的頻譜特性。此外，頻譜特性也可 10 #供警示範圍大小的計算資料，進而估算實際佈放所需的 監控裝置數量及擺放位置。同樣地，該資料處理器322上 所處理的聲壓值觸發準位與時間參數皆為可調整式，以提 供整個系統較大的判斷範圍。 該啟動器323與該資料處理器322電連接，並於接收 15 到該資料處理器322之該啟動訊號時，輸出一大電流至該 警示器324上。其中，該啟動器323之輸出電流範圍為〇 至100安培。當該警示器324與該啟動器323電連接，可 受該啟動器323之大電流驅動，並發出警告信號。在本較 佳實施例中，該警示器324為—設置於陸地上海岸邊的探 〇 照燈，當該探照燈被大電流驅動時，會立刻照亮位於海面 上的監控裝置3 1並發出警告音響，以達到預警的效果。 回顧圖2，當盜賊駕駛機動漁船靠近該海上箱網養殖 區時，漁船上所發出的引擎聲音會被該感測元件312接 收，經该讯唬放大器3 13將訊號放大至該觸發器3〗5可判 10 1241537 項的範圍後，將訊號由該無線電發射器3丨4傳送至陸地上 的警示裝置32,由該無線電接收器321將聲音訊號接收 後以δ亥資料處理器322做即時的聲音判斷及資料分析， 右判疋有疑似偷魚的狀況，則經由該啟動器323來推動大 包々丨l的警示态324發出警示訊號，以達到預警的效果。 本發明之水下聲學警示系統3是屬於利用水中聲學原 理，使用被動式聲納來偵測水中可疑的聲源，用以防止竊 賊盜取海上箱網養殖業者的漁貨。 此外，本發明藉由在海上的監控裝置31可作監測性 的聲音訊號傳輸，以及位於陸地上的警示裝置32即時性 、“報赉佈進而於人力無法長時間守衛的海上箱網區， 負起保護養殖漁民資產的任務。另外，本發明之水下聲學 警不系統3，可於海上作長時間的觀測，配合該太陽能板 317對該電源供應裝置316充電，可使海上能源不虞匱乏 而自給自足。 、特別提出的是，本發明之水下聲學警示系統3，除可 作為箱網養殖業者的警報監控之外，還可依需求不同換上 不同或更精密的感測元件312，並與軍方合作將該水下聲 學警示系統3之監控裝置31放置在外海，作為海上領域 的監測哨，若有敵人藉由海上通道靠近，則發出無線電訊 唬通知陸地上的人，以達到海上預警的功效。 歸納上述，本發明之水下聲學警示系統3，藉由前揭 技術特徵’錨錠於人力無法長時間守衛的海上箱網區旁， 負起監測海上箱網區安全的任務，可即時驅離盜賊竊取海 1241537 上箱網養殖者的資產，且在不同的海洋環境中，只要調整 上述中的感測設定(例如觸發門檻值、時間參數等)，就; 以符合各類型箱網區的使用，另藉由該感光器幻8可：動 5 10 15 依照現場狀況作開啟或闕閉的動作，不再需要人為啟動， 以及配合燕線電即時通却工力*b 才逋Λ功此，而達到完全自動化的警報 效果，故確實能達到本發明之目的。 惟以上所述者，僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請專利 犯圍及發明說明書内容所作之簡單的等效變化與修飾，皆 應仍屬本發明專利涵蓋之範圍内。 圖式簡單說明】 圖1是-系統方塊圖，說明本發明之水下聲學馨 統之主要構造； ” 圖2是本發明水下聲學警示系統之較佳實施例的示意 圖；及 ^ 3是該較佳實施例中一監控裳置之側視示意圖，說 明各主要元件間之連結關係。 12 1241537 【圖式之主要元件代表符號說明】 3 水下聲學警示系 3 16 電源供應為' 統 317- 太陽能板 3 1 …監控裝置 3 18 …感光器 311… …“殼體 3 2 < …警示裝置 3 10 …容置空間 3 21 無線電接收器 3 12… 4…感測元件 322… …資料處理器 313- 訊號放大器 3 2 3… 3 14… …無線電發射器 3 2 4… …警示器 315 …觸發器 131241537 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a warning system, and particularly to an underwater acoustic warning system for a marine net. 5 10 15 [Previous technology] In recent years, the coastal marine fishery resources have been gradually depleted, the overburden of onshore fisheries has caused the subsidence of coastal strata, the impact on traditional fisheries after joining WT0, and the implementation of two hundred nautical mile economic seas internationally. Due to the limitation of the fishing range of the offshore fisheries, coupled with the successful marketing of Norwegian salmon cage net farming around the world, it has become the best mirror for the development of marine fisheries in many countries. Marine cage net farming has become an international future trend. Box uranium China has included box-net farming as one of the national key fisheries. △ The islands with separated bays have excellent natural environmental conditions (such as Xiaoliuqiu, Zhanghu, etc.). Become the most promising high-economic industry in aquaculture fishery. < However, the aquaculture is not without its disadvantages, because the breeding area is mainly 1 sea 'and most of the farmed fish are high-value fish (such as catfish, fish, grouper, and other high-value seafood). Fish species are also j: dolphins :: one of the food 'so often attracts dolphins to approach the nets to steal food. Rabbit This method of the “Republic of China Patent Announcement ...” No. 37864 unveiled-a kind of "driving away from the sea," "active sonar using thermal damage to reduce economic conflicts and conflicts." Using the method disclosed above, the 3-pulse "echo positioning" sends a broadband noise to "..." to make it inaccessible to the box net breeding nets 20 1241537 'or its natural enemies (for example, to get rid of stealing food, and some others The method uses high-decibel single-frequency noise (such as killer whale) to make whales and dolphins feel uncomfortable or afraid. 5 10 15 The challenges faced by box-net aquaculture operators are not limited to this. In addition to the stolen dolphins mentioned above, they also include the destruction of human behavior. The main problem is that the fish cultured by the offshore box-net aquaculture industry are high. &Amp; category of economic value, and because human beings can't guard the marine box net area for a long time, it often causes loved ones to use it. Under the cover of night, they use small motor fishing boats such as ships and boats to quietly sail. Xiang Box: Unlawful violations of the law and discipline, the most common ones are theft of fish of the second largest value, and the damage of net gear. However, the use of active sonar to drive away animals is not suitable for the box net farming industry that has been artificially damaged or stolen, and such devices do not have the function of detecting intruders, and can only be set at time intervals. The sound is played, so the ability to protect the cage culture area cannot be achieved. Take China's Little Ryukyu as an example, the annual loss of fish theft and damage to nets is more than 30 million (statistical period: 8 2003) ′ There is no effective prevention and control method until the end of the year a $. [Summary of the Invention] Therefore, 'the object of the present invention' is to provide an underwater acoustic warning system for protecting fishermen's assets. Yu Yan, the underwater acoustic warning system of the present invention includes a monitoring device provided on the sea and a warning device provided on land. The monitoring device includes a housing, a sensing element, a signal amplifier, a radio transmitter, a trigger, and a power supply. 20 1241537 The shell is a closed container that can float on the sea surface and defines a valley space around it. The sensing element is connected to the casing and is located under the water surface, and can be used to receive sound signals in the sea. The signal amplifier is located in the accommodating space and is electrically connected to the sensing element, and can amplify the signal received by the sensing element. The radio transmitter is electrically connected to the signal amplifier for transmitting sound signals. The trigger is located in the accommodating space, and is electrically connected to the radio transmitter and the signal amplifier n, respectively, to determine whether the signal of the signal amplifier needs to be transmitted to the radio transmitter. The power supply is disposed in the accommodating space and is electrically connected with the above-mentioned electrical components, and can provide the power required for the operation of the electrical components. The warning device includes a radio receiver, a data processor, a starter, and a warning device. The radio receiver can be used to receive sound signals from the radio transmitter. The data processor is electrically connected to the radio receiver, and can process the judgment and data analysis of the sound signal in real time, and send out a start signal. The starter is electrically connected to the data processor, and can receive the start signal and output a large current. The warning device is electrically connected to the starter and is driven by the high current of the starter to send a message to Huatai. The effect of the present invention is that when an unusual sound signal is received by the sensing element, the signal is amplified by the signal amplifier, and after the trigger is interpreted, the signal is sent by the radio transmitter to the radio reception on the land. After receiving the data, the data processor analyzes the data and sends a start signal to the starter. The starter sends a large current to drive the warning device to issue a warning signal to achieve the effect of real-time alarm. 1241537 [Embodiment] The foregoing and other technical contents, features, and effects of the present invention will be clearly understood in the following detailed description of the preferred embodiment with reference to the drawings. Referring to FIG. 1, the underwater acoustic warning system 3 of the present invention includes at least a monitoring device 31 disposed on the sea and a warning device 32 disposed on the land. Here, it should be noted that the present preferred embodiment is described by taking the underwater acoustic alarm system 3 as an example for marine cage net farming, but in actual implementation, it is not limited to marine cage net farming. Can be used for other purposes. With reference to Figs. 2 and 3, the monitoring device 31 is fixed in the form of an anchor bar near the offshore box network area and includes a housing 311, a sensing element 312, a signal amplifier 313, a radio transmitter 314, A trigger 3 1 5 ′ and a power supply 3 丨 6. The casing 311 is a closed container that can float on the sea surface, and defines a receiving space 310 around it. The sensing element 312 is connected to the casing 311 and is located under a metre of water, and can be used to receive sound signals in the sea. In the preferred embodiment, the sensing element 312 is an underwater microphone, which can receive underwater sound in all directions, and the frequency range of the received signal is from 10 Hz to 25 KHz. The signal amplifier 313 is located in the accommodating space 310 and is electrically connected to the sensing element 312 to amplify the signal received by the sensing element 312. The frequency gain of the signal amplifier 313 is 12dB to 15dB. The radio transmitter 314 is electrically connected to the signal amplifier 313, and can be used to transmit the sound signal amplified by the signal amplifier 313, and the frequency range of the sound transmitted by the radio transmission 1241537 port 3U is from ⑽Hz to bar. Kouhai trigger 3 1 5 is located at the gate of Xun Sang 詈 ^ n Shan Yu ^ in the workshop 31G, and is respectively connected to the helmet and the signal amplifier 313 and the signal amplifier 313 to electrically connect the signal amplifier 313. Value, ,, φ consumes Xuan 5 10 15 <Λ5 Tigers should be transported to the radio to cry. That is, the sound signal received by the sensing element 312 must: trigger the door planter of the foot transmitter 315, and the sound signal can be transmitted through the transmitter 314. In this preferred embodiment, the signal amplifier 313 can amplify the sound received by the sensing element 312 to a range that can be read by the trigger 315, and the signal strength exceeds the trigger gate set on the trigger 315. If the value exceeds the set time, the sound signal will be transmitted to the land-based warning device 32 through the radio transmitter 314. It is claimed that the trigger threshold and the duration limit of the trigger SB are both adjustable, and the trigger threshold can be adjusted according to the actual situation or different monitoring objects. The power supply 316 is located in the accommodating space 31, and is electrically connected to the above-mentioned electrical components (the sensing element 312, the signal amplifier 313, the radio transmitter 314, and the trigger 315), and can provide The power required by the aforementioned electrical components during operation. In the preferred embodiment, the power supply 316 is a rechargeable battery capable of outputting a voltage of 12v, but in actual implementation, it is not limited to that disclosed in this embodiment. In the preferred embodiment, the monitoring device 31 further includes a solar panel 317 disposed on the casing 311. The solar panel 317 is made of a polycrystalline silicon structure and is electrically connected to the power supply 316. After the received solar energy is converted into electrical energy, a supply power of 0 to 35 W is provided to charge the power supply of the electric power 20 1241537 31 to 316 to ensure that there is no shortage of power in the marine monitoring device. 5 10 15 In addition, the monitoring device 31 further includes a photoreceptor 318, the sensor "318 is electrically connected to the power supply 316, the wireless crying and the signal amplifier 313, respectively, according to the strength of the external light source ^ In order to open and close the switch of the monitoring device 31, that is, the monitoring device M is turned on or off according to the on-site sunlight conditions, and it can also prevent the owners from producing healthy fish or approaching the offshore cage net breeding area. It can also accidentally touch the situation, and also save the scarce power at sea. It is worth mentioning that 'the photoreceptor 318 controls the opening and closing time of the monitoring device 31, and it can also be designed to be adjustable, that is, the opening and closing time can be controlled by the industry. However, this technology is easy to implement and transfer to those skilled in the art, and has been disclosed in other fields, so it will not be described in detail. The police device 32 includes a radio receiver. 32. A data processor 322, an enabler 323, and an alarm 324. The radio receiver 321 can be used to receive sound signals from the radio transmitter 314. The data processor 322 is connected with the radio receiver 321 package, and can be automatically and immediately analyzed and processed by the radio receiver if the sound signal is received, and further make signal judgment and data analysis, and the frequency of the sound dust value is determined by Ehong. If The sound signal after analysis is determined to be a stealing fishing boat, and the data processor 322 sends an activation signal to the initiator 323. In the preferred embodiment, the data processor 322 is a personal computer and uses "LabVIEW The programming language is used to write control programs to establish 20 1241537 convenient human-machine interface to communicate software and hardware. The data processor itself is mainly used to judge whether the radio signals issued by the marine monitoring device 31 are sufficient to constitute an alarm. condition. If the conditions are met, a signal is sent via the personal computer to activate the launcher 323. In order to be able to control in the process 5 mode, the parameters required by the program must be defined according to the data. In the preferred embodiment, the two main parameters required by the human-machine interface program are the trigger thresholds of the first stage. , And the time parameters of the second stage, these two values are closely related to the sound source (theft fishing boat) and environmental noise, and must be measured to understand the individual spectral characteristics. In addition, the spectrum characteristics can also be calculated by 10 # for the size of the warning range, so as to estimate the number and location of monitoring devices required for actual deployment. Similarly, the trigger level and time parameters of the sound pressure value processed on the data processor 322 are adjustable to provide a larger judgment range for the entire system. The enabler 323 is electrically connected to the data processor 322, and when receiving the enable signal from the data processor 322, it outputs a large current to the alarm 324. The output current of the starter 323 ranges from 0 to 100 amps. When the warning device 324 is electrically connected to the starter 323, it can be driven by the high current of the starter 323 and issue a warning signal. In this preferred embodiment, the warning device 324 is a searchlight set on the coast of the land. When the searchlight is driven by a large current, it will immediately illuminate the monitoring device 31 on the sea surface and issue a warning. Sound to achieve the effect of early warning. Looking back at FIG. 2, when a thief drives a motorized fishing boat close to the offshore box net breeding area, the engine sound emitted by the fishing boat will be received by the sensing element 312, and the signal will be amplified to the trigger 3 by the signal amplifier 3 13. After determining the range of 10 1241537 items, the signal is transmitted from the radio transmitter 3 to the warning device 32 on the land. The radio receiver 321 receives the sound signal and uses the delta data processor 322 to perform real-time The sound judgment and data analysis, right judged that there is a suspected situation of stealing fish, then the alarm state 324 of the large bag is sent via the starter 323 to issue a warning signal to achieve the effect of early warning. The underwater acoustic warning system 3 of the present invention belongs to the principle of using underwater acoustics, and uses passive sonar to detect suspicious sound sources in the water, in order to prevent thieves from stealing the fishing goods of the marine box net farmers. In addition, the present invention can perform monitoring sound signal transmission by the monitoring device 31 at sea, and the real-time, "reporting" of the warning device 32 located on the land, and thus in the offshore box network area where humans cannot guard for a long time. Protects the fishermen ’s assets. In addition, the underwater acoustic alarm system 3 of the present invention can make long-term observations at sea, and cooperate with the solar panel 317 to charge the power supply device 316, which can make marine energy scarce. Self-sufficiency. It is particularly proposed that the underwater acoustic warning system 3 of the present invention can be used as an alarm monitor for box net farmers, and can be replaced with different or more precise sensing elements 312 according to different needs, and Cooperate with the military to place the monitoring device 31 of the underwater acoustic warning system 3 on the open sea as a monitoring whistle in the maritime field. If an enemy approaches via a maritime channel, it will send a radio message to notify people on the land to reach the sea. In summary, the above-mentioned underwater acoustic warning system 3 of the present invention has the feature of 'anchor ingots that can't be guarded for a long time by manpower by means of the technical characteristics of the previous disclosure. Next to the upper box net area, the task of monitoring the safety of the offshore box net area can be immediately driven away from the thieves to steal the assets of the sea 1241537 upper box net farmers, and in different marine environments, as long as the sensing settings in the above are adjusted ( (Such as trigger thresholds, time parameters, etc.), in order to meet the use of various types of box net area, and the photo sensor 8 can be: 5 5 15 according to the site conditions to open or close the action, no longer required The artificial start and the coordinating work force of the Yanxian line electricity * b can only be used to achieve the complete automatic alarm effect, so it can indeed achieve the purpose of the present invention. However, the above is only a comparison of the present invention. Only the best embodiment, when the scope of implementation of the present invention cannot be limited in this way, that is, the simple equivalent changes and modifications made according to the patent application and the content of the invention description of the present invention should still fall within the scope of the invention patent Brief description of the drawings] Figure 1 is a system block diagram illustrating the main structure of the underwater acoustic system of the present invention; "Figure 2 is a schematic diagram of a preferred embodiment of the underwater acoustic warning system of the present invention ; And ^ 3 is a schematic side view of the preferred embodiment of a monitor set skirts embodiment, said connection relationship between the principal elements of the next. 12 1241537 [Description of the main symbols of the drawings] 3 Underwater acoustic warning system 3 16 Power supply is' System 317- Solar panel 3 1… Monitoring device 3 18… Photoreceptor 311…… “Shell 3 2 <… Warning device 3 10… accommodation space 3 21 radio receiver 3 12… 4… sensing element 322…… data processor 313-signal amplifier 3 2 3… 3 14…… radio transmitter 3 2 4…… warning device 315 … Trigger 13