1228481 (1) 玖、發明說明 【發明所屬之技術領域】 本發明是關於一種行走軌道配置於裝卸貨物 間’而藉由沿著該行走軌道移動的台車搬運貨物 統。 【先前技術】 近年來，在欲將貨物搬運至如醫院等具有多 建築物內的各房間之際，使用與依人員的搬運相 物的搬運效率優異的無人搬運系統。 如第7圖所示地，無人搬運系統是指裝載貨 51行走連結建築物內的各房間的行走軌道52上， 搬運至建築物內的各房間的系統。在該搬運系統 數台車5 1。 台車51是具備行走行走軌道52上所用的行走 制裝置，及前走車感測器。前走車感測器是檢測 51的進行方向（G方向）前方的另一台車51，用 車5 1彼此間的相撞者，而控制裝置是用以進行台 走速度的控制者。 又，在該搬運系統中，在建築物的房間內爲 生火災時的延燒，防火扉5 3設在行走軌道5 2的途 該防火扉53是在發生火災之際從行走軌道52上方 Η方向）下降，而遮斷行走軌道52。然而，台車 防火扉5 3正下方時，台車5 1成爲障礙而有防火扉 所用的站 的搬運系 數房間的 比較，貨 物的台車 而將貨物 ，使用複 裝置，控 行走台車 以防止台 車5 1的行 了防止發 中位置。 朝下方（ 5 1停止在 5 3無法遮 (2) 1228481 斷行走軌道5 2的不方便。 · 亦即，例如朝台車5 1的進行方向一台車5 1停止在防火 扉5 3的正後方時，則從後方行走的其他台車5 ]藉由前走車 感測器停止在防火扉5 3正下方成爲不會相撞於一台車5 1， 而在該狀態下防火扉5 3朝Η方向下降時，會相撞於台車5 1 而無法遮斷行走軌道5 2。 如此，在習知，朝該台車5 1的進行方向在防火扉5 3前 後的行走軌道52，設有檢測台車5 1的通過的台車感測器54 φ ' 5 5。台車感測器5 5是在與防火扉5 3之間，配置在能使一 台台車51進入程度地充分遠離的位置。又，在行走軌道52 ’也設有將允許進入至藉由台車感測器5 4、5 5所對峙的區 間L內的信號發送至台車5 1的發送機5 6。又，在台車5 1設 有接收台車感測器54所發送的進入允許信號的接收機。藉 由以上的構成，在該區間L進行僅可進入一台台車5 1的區 間控制。 亦即，台車5 1在通過台車感測器5 4而位在區間L內時 ，則從該台車5 1後方行走來的其他台車5 1不會有從發送機 5 6發送對於區間L的進入允許信號。因此，其他台車5 1是 成爲停止在區間L的外側。 之後，當先行的台車5〗通過台車感測器5 5，則進入允 許信號從發送機5 6發送至台車5 1，成爲使得後續台車5 1進 入至區間L內。由此，在防火扉53的正下方避免有台車51 停止之故，因而可防止台車5 1與防火扉5 3的相撞。 然而，在習知的搬運系統中，爲了進行區間控制，在 (3) · 1228481 行走軌道設置兩具台車感測器5 4、5 5及發送機5 6，又，在· 台車5 1也設置接收進入允許信號的接收機之故，因而有搬 運系統構築的成本變高的缺點問題。 又，爲了台車5 1能接收發送機5 6的信號，必須減速台 車5 1，而產生縮短貨物的搬運時間所用的障礙。 【發明內容】 本發明是鑑於上述事項而創作者，其目的是在於提供 φ 一種防止防火扉與台車的相撞之同時，可容易地進行防止 該相撞的搬運系統。 爲了解決上述課題，本發明是提案以下的手段。 本發明的第一形態是一種搬運系統，屬於具備行走軌 道’及沿著該行走軌道可移動的複數台車，及配置於上述 行走軌道的途中位置，在發生火災時遮斷行走軌道的防火 扉的搬運系統，其特徵爲具備：設於上述台車，檢測行走 則方的先行台車的第一檢測手段；朝上述台車的進行方向 馨 ’設於上述防火扉正前側的上述行走軌道的被檢測構件； 以及設於上述各台車，檢測上述被檢測構件的第二檢測手 段。 依照該發明的搬運系統，具備於台車的第二檢測手段 檢測手段檢測配置於行走軌道的被檢測構件之故，因而成 爲台車本身檢測台車位在防火扉的正前側。在該狀態下， 在具備於台車的第一檢測手段檢測先行台車時，台車不會 停止在依防火扉的行走軌道的遮斷位置般地，成爲可停止 一 6- (4) 1228481 在防火扉的正前側。亦即，藉由設在台車的第一、第二檢· 測手段，及設在行走軌道的被檢測構件，可進行台車速度 的控制之故，因而在行走軌道不必設置控制所用的控制裝 置。 又，藉由設在台車的第一、第二檢測手段進行台車速 度的控制之故，因而並不必過度地減速台車。因此，可縮 短貨物的搬運時間。 又，在上述搬運系統中，上述被檢測構件隔著間隔配 φ 置複數於上述台車的進行方向，而在藉由上述複數被檢測 構件所隔的領域內，上述第一檢測手段檢測上述先行台車 時，減速成停止上述台車也可以。 依照本發明的搬運系統，在藉由複數被檢測構件所隔 的領域內，台車藉由第一檢測手段檢測先行台車之際，台 車是能停止地進行減速。因此，藉由依第二檢測手段的被 檢測構件的檢測而變化台車速度，可防止台車停止在依防 火扉的行走軌道的遮斷位置。 φ 亦即，藉由設在台車的第一、第二檢測手段，及設於 行走軌道的複數被檢測構件，可進行台車速度的控制之故 ’因而不必在行走軌道設置控制台車速度所用的控制裝置 〇 又’在上述搬運系統中，在上述台車檢測接近於上述 防火扉的一方的上述被檢測構件時台車行走的時候，，不必 停止上述台車仍行走也可以。 依照本發明的搬運系統，當台車到達接近於防火扉一 (5) * 1228481 方的被檢測構件，則不停止仍行走。因此’在藉由複數被' 檢測構件所隔的領域內，在台車的速度成爲不充分時’台 車是成爲可通過依防火扉的行走軌道的遮斷位置。因此’ 可以防止台車停止在依防火扉的遮斷位置。 又，在上述搬運系統中， 上述第一檢測手段具備在不同的兩個檢測距離以下檢 測上述先行台車的兩個檢測領域； 在藉由上述複數被檢測構件所隔的領域外，在第一檢 φ 測領域內，藉由上述第一檢測手段檢測到上述先行台車時 ，減速上述台車進行行走； 在檢測距離短於上述第一檢測領域的第二檢測領域內 ，藉由上述第一檢測手段檢測上述先行台車時，減速成停 止上述台車， 依照本發明的搬運系統，在檢測距離較長的第一檢測 領域中檢測先行台車之際，事先減速台車之故，因而在檢 測距離較短的第二檢測領域中，再檢測先行台車之際，可 φ 將台車停止在較短距離。因此，可成爲台車不會追撞先行 台車地停止。 【實施方式】 第1圖至第6圖是表示本發明的搬運系統的實施形態。 該實施形態的搬運系統1 0 〇是具有複數樓層。例如將 貨物效率優異地搬運醫院建築物內的各房間所用者，如第 】圖所示地，具備行走軌道1，及沿著行走軌道〗可行走的 • 8 - (6) 1228481 複數台車1 Ο，及配置於行走軌道1的途中，對於台車】〇 裝卸貨物的複數站S Τ。 又，在該搬運系統1 0 0，火災發生在某一房間之際， 爲了抑制延燒至其他房間，在行走軌道1的途中位置設有 遮斷各房間的防火扉2 0。 站S Τ是對於台車1 〇進行貨物裝卸所用者，具備用以進 行對於其他站S Τ的貨物的搬運指示的操作裝竈。該站S Τ 是不僅設在建築物的相同樓層，也設在其他樓層。因此， 從一地板搬運貨物至其他樓層，是成爲藉由上下地昇降台 車1 0的昇降機5所進行。 如第2圖所示地，防火扉2 0是在未發生火災的狀態下 ，台車1 〇能通過行走軌道1的遮斷位置W地被收容在行走 軌道1上方。發生火災時，該防火扉2 0從行走軌道1上方朝 下方（Β方向）下降而成爲遮斷行走軌道！。 從該防火扉2 0沿著行走軌道1的方向前後全面所設置 的區間X，是爲了關閉防火扉2 0所需要的行走軌道1的空 空間。亦即，台車10在該區間X內時，則在關閉防火扉20 時，防火扉2 0接觸於台車1 0而成爲無法遮斷行走軌道1 的狀態。 在行走軌道1的上面1 a，張貼著條碼標記S a、SB，條 碼標記S b是張貼在台車1 〇朝a方向則進入至區間X之前的 位置。又’條碼標記SA是張貼在朝防火扉20隔著一定間隔 於條碼標記S B的正前側的位置。此些條碼標記s A、S B是在 台車1 0 {al A方向進入區間X的正前側，使用於用以進丫了控 (7) 1228481 制台車1 0的行走速度。 · 台車10是在某一站ST裝載貨物’並搬運至另一站sT 所用者，該台車1 〇是具備前走車感測器（第一檢測手段） 1 1及條碼讀取機（第二檢測手段）1 2 ;又，具備控制台車 1 〇的行走速度的未圖示的控制裝置。 前走車感測器1 1是檢測朝台車1 〇的進行方向（A方向 )先行的台車1 0所用者，具備兩個檢測距離。第一檢測距 離（第一檢測領域）B 1是以最高速度行走的台車1 0，檢測 __ 停止在前方的另一台車I 〇時，從最高速度緩緩地減速台車 1 0，也不會追撞先行的台車1 0的距離。又，第二檢測距離 (第二檢測領域）B2是爲了防與先行行走軌道1 〇的追撞， 必須立刻地停止台車1 〇的距離。 條碼讀取機1 2是檢測張貼於行走軌道】的條碼標記SA 、S B所用者，對向於行走軌道1的上面；[a側而設於台車1 0 的下端部。該條碼讀取機1 2藉由讀取條碼標記s A、S b，台 車1 〇是可把位在區間X的正前側。 ·! 控制裝置是依據利用這些前走車感測器n及條碼讀取 機1 2所得到的□車1 〇周圍的資訊，成爲可控制台車1 〇的行 走速度。 在如上所構成的搬運系統1 0 〇中，台車〗〇的行走速度 是成爲藉由與先行的台車1 〇的車間距離B 1、B 2，或條碼 標S a、S b被變更。以下說明台車i 〇的行走控制。 亦即，如第3圖所示地，首先，控制裝置以第一設定 速度V 1行走台車1 〇 (步驟s丨）。該第一設定速度v〗是爲 ~ 10 ~ (8) 1228481 了台車1 〇搬運貨物行走行走軌道1上，藉由前走車感測 器11，未檢測先行於台車1 〇前方的台車1 〇的狀態的速度。 之後，移行至步驟S 2，藉由前走車感測器1 1判定與台 車1 0的車間距離爲第一檢測距離Β 1以下，而在車間距離大 於第一檢測距離Β 1時，則回到步驟S 1而以第一設定速度 V】行走後續的台車1 〇。 又，與先行的台車1 0之間的車間距離爲第一檢測距離 Β 1以下時，則移行至步驟S 3，藉由前走車感測器1 1判定 車間距離是否第二檢測距離Β 2以下。 結果，與先行的台車1 0的車間距離大於第二檢測距離 Β 2時，則移行至步驟s 4，藉由條碼讀取機1 2判定後續台 車1 〇是否利用條碼標記S Α、S β所隔的區閒內。 結果，後續台車1 0未在藉由條碼標記S Α、S Β所隔的區 間內時，則移行至步驟S5，控制裝置是將後續台車丨〇的車 速變更成爲第二設定速度V2。在此，第二設定速度·γ2是比 第一設定速度V !慢的速度。 亦即，後續的台車1 0是在以第一設定速度V ]行走的 狀態，與先行的台車1 0的車間距離成爲第一檢測距離Β 1， 則成爲朝第—§5：定速度V 2減速。又，終了該步驟s 5的處理 之後’成爲進行表示於步驟S 2的處理。 又，在步驟S 3中，藉由前走車感測器]丨判斷爲與先行 的台車1 0的車間距離的第二檢測距離Β2以下時，則移行至 步驟S6，控制裝置是將車速目標變更成〇，減速成停止後 續的台車1 0。之後，在步驟S7中，判定後續的台車]〇是否 (9) 1228481 停止，而在台車1 0未停止時’進行表示於步驟S 2的處理。 又，在步驟S 4中，藉由條碼讀取機1 2判斷後續的台車 10位在條碼標記sa、SB之區間內時’則與上述同樣’進行 表示於步驟S 6及步驟S 7的處理。 亦即，在與先行的台車1 0的車間距離爲第一檢測距離 B 1以下的狀態下，車間距離成爲第二檢測距離B 2以下時 ，或是後續的台車1 0進入條碼標記S A、S b的區間內時’減 速成停止後續的台車1 ◦ ° 又，在步驟S7中，在後續的台車10停止時，與先行的 台車1 0的車間距離在條碼標記S A、S B的區間內成爲第一檢 測距離B 1以上時，或是在條碼標記s A、S B的區間外成爲 第二檢測距離B 2以上時，則成爲後續的台車1 0開始行走。 第4圖至第6圖的圖表，是表示速度控制的一例者。 各圖表的橫軸是表示行走軌道的位置，台車1 〇是作成 沿著該橫軸而從紙面的左邊移至右邊。又，各圖表的縱軸 是表示依控制裝置的台車1 〇的目標速度及台車1 〇的實際車 速。 例如如第4圖所示地，朝台車1 0的進行方向位在條碼 標記S A的正前側的位置S c中，與先行的台車1 0的車間距離 成爲第一檢測距離B 1以下時，進行步驟S 5的處理，使得 後續的台車10的車速朝第二設定速度V2減速。又，該減速 是爲了防止裝載於台車1 0的貨物的損壞，成爲長距離地平 緩地進行。 當通過條碼標記SA之際，進行步驟S6的處理而減速成 (10) 1228481 停止一個台車1 0，停止在條碼標記S b的正前方。 . 又，例如第5圖所示地，在朝台車1 〇的進行方向位在 比位置S c更正前方側，與先行的台車〗〇的車間距離成爲第 一檢測距離B 1以下時，進行步驟s 5的處理，使得後續的 台車10的車速減速至第二設定速度V2。又，以該車速通過 條碼標S a ’則進行步驟S 6的處理，後續的台車1 〇成爲在 條碼標記S A、S B所隔的區間內停止。 又，例如第6圖所示地，在位置s c與條碼標記s A之間 · ’與先行的台車1 0的車間距離成爲第一檢測距離B 1以下時 ，進行步驟S 5的處理，使得後續的台車丨〇的車速朝第二設 定速度V2減速。又，後續的台車10是以該車速通過條碼標 記S a ’則進行步驟S 6的處理，而減速成停止。然而，後續 的台車10通過條碼標記SB時，再進行步驟S5的處理，成爲 加速到第二設定速度V2，而成爲通過防火扉20的遮斷位置 W的狀態。 亦即，在位置S c與條碼標記S b之間，前走車感測器1丨 φ 檢測第一檢測距離B 1時，後續的台車1 〇是即使減速也無法 b止在條碼標d S b的正則方。因此，如第2圖所示地，在 後續的台車1 0位在位置S c時，則在與先行的台車1 〇的區間 X的前端境界X 1之間，必須具有至少一台台車〗〇可位置的 程度的間隙。 因此，第一檢測距離B 1是設定作爲相加台車！ 〇能從設 定速度V !—直到停止爲止的制動距離（從位置Sc—直到條 碼標記s B爲止的長度），區間X的長度，第二檢測距離B 2 -13- (11) 1228481 ，及一台台車1 0的長度較理想。 又，在該搬運系統1 0 0，設有緊急停止機構成爲更確 實地防止台車1 0與防火扉2 0的相撞。該緊急停止機構1 5 0 是由：設在行走軌道1上方的頂壁面3 〇的發送機3 1，及設 於台車1 0，接收從發送機3 1所發送的信號的接收機（未圖 示），及設於行走軌道1的條碼標記SB、SD所構成。 發送機3 1是將允許進入至區間X的信號發送至台車1 0 的接收機者，而在通常時發送允許進入信號’在火災時停 ^ 止允許進入信號的發送者。又，條碼標記S D是張貼於朝防 火扉20比條碼標記SA更正前側的行走軌道1的上面1 a側。 台車10在朝A方向行走藉由條碼標記SB、SD所隔的區 間的狀態下，在接收機接收允許進入信號時，依據上述的 速度控制施以行走。又，在成爲未接收允許進入信號時， 緊急制動而停止台車1 0，確實地防止台車1 〇與防火扉2 0的 相撞。在此，所謂緊急制動是指從第一設定速度V !也能以 些微距離強制性地停止台車1 0。 φ 如上述地，依照該搬運系統1 0 0，具備於台車]0的條 碼讀取機1 2 檢測配置於行走軌道1的條碼標記S a、S b之 故，因而成爲台車1 0本身檢知台車1 0位於防火扉2 0的正前 側。又，在藉由條碼標記S a、S b所隔的區間內，台車1 0的 前走車感測器1 1檢測先行的另一台車1 0之際，則台車1 0 是減速成停止狀態。 因此，藉由依條碼讀取機1 2的條碼標記SA、SB的檢測 使得台車1 〇的速度施以變化，即可防止台車]〇停止在依防 -14- (12) 1228481 火扉2 0的行走軌道1的遮斷位置w。 又，台車1 〇是到達條碼標記Sb，則不停止繼續行走。 因此，藉由條碼標記S a、S b所隔的領域內’若台車1 〇的減 速成爲不充分時，則台車1 0是成爲可通過依防火扉2 〇的行 走軌道1的遮斷位置W。因此，可防止台車1 0停止在依防 火扉2 0的遮斷位置W。 由以上事項，藉由設在台車1 0的前走車感測器1 1 ’條 碼讀取機1 2，以及設在行走軌道1的條碼標記S a、S b ’可 進行台車1 0的速度控制。 由此，爲了台車1 〇的速度控制不必將控制裝置設在行 走軌道1之故，因而可刪減搬運系統1 0 0的設置成本。又’ 並不需要地減速台車之故，因而可縮短貨物的搬運時間。 又，台車1 0的前走車感測器1 1在第一檢測距離B 1檢 測先行的台車1 〇之際’爲了事先減速台車1 〇 ’在第二檢測 距離B 2檢測先行的台車1 0之際，即以較短距離就可停止 台車10。所以，成爲台車10停止而不會追撞先行的台車10 〇 又，在上述實施形態中，條碼標記SA、SB的張貼位置 ，是不被限定在行走軌道1的上面1 a ’而在行走軌道1的下 面也可以。 又，並不限定爲條碼標記SA、SB，例如在各站ST的 正前方另外設置條碼標記也可以。在這時候，條碼讀取機 12檢測站S T的正前方的條碼標記，將貨物到達欲搬運的 目的的站ST的情形傳達至台車10的控制裝置，即可減速台 (13) 1228481 車1 〇成爲停止在站s τ。 又，依防火扉2 0的行走軌道1的遮斷，則作成在發生 火災時進行，惟並不被限定於此，例如在某一房間內發生 有毒氣體時作成遮斷防火扉2 0也可以。 又，防火扉2 0是被收容在行走軌道1的上方，作成朝Β 方向移動而遮斷行走軌道I，惟並不被限定於此者，例如 收容在行走軌道1的下方側，從行走軌道1的下方側朝上方 移動而遮斷行走軌道1，或是收容在行走軌道1的側方，從 行走軌道1的兩側遮斷行走軌道1也可以。 【圖式簡單說明】 第1圖是表示本發明的實施形態的搬運系統的槪略圖 〇 第2圖是表示在第1斷的搬運系統中防火扉周邊的行走 軌道的槪略圖。 第3圖是表示在第1圖的搬運系統中台車的速度控制流 程圖。 第4圖是表示在第1圖的搬運系統中防火扉的正前方側 的台車的速度及設定速度的圖表。 第5圖是表不在第1圖的搬運系統中，防火扉正前側的 台車的速度及設定速度的圖表。 第6圖是表示在第1圖的搬運系統中，防火扉正前側的 台車的速度及設定速度的圖表。 第7圖是表示習知搬運系統的一例的槪略圖。 - 16- (14) (14)1228481 【符號說明】 1 行走軌道 10 台車 1] 前走車感測器（第一檢測手段） 12 條碼讀取機（第二檢測手段） 2 0 防火扉 1 〇 〇搬運系統 B 1 第一檢測距離（第一檢測領域） B2 第二檢測距離（第二檢測領域） S A、S B 條碼標記（被檢測構件）1228481 (1) 发明. Description of the invention [Technical field to which the invention belongs] The present invention relates to a system for transporting goods by a trolley that moves along the traveling track when it is disposed in a loading / unloading space. [Prior Art] In recent years, when a cargo is to be transported to various rooms in a building such as a hospital, an unmanned transport system having excellent transport efficiency with respect to the transport of objects by personnel is used. As shown in FIG. 7, the unmanned transportation system refers to a system in which a load 51 is transported on a walking rail 52 that connects rooms in a building and is transported to each room in the building. In the handling system several carts 5 1. The trolley 51 is provided with a traveling control device used on the traveling rail 52 and a front traveling sensor. The front travelling sensor detects another vehicle 51 in front of the proceeding direction (G direction) of the vehicle 51, and the vehicle 51 collides with each other, and the control device is a controller for performing the travelling speed. Further, in this conveying system, in the room of the building, a fire is prevented from occurring during a fire, and the fire prevention 扉 53 is provided on the way of the walking track 52. The fire prevention Η53 is directed upward from the walking track 52 when a fire occurs. ) Descent while blocking the walking track 52. However, when the trolley fire 下方 5 3 is directly below, the trolley 51 becomes an obstacle and there is a comparison of the transport coefficient of the station used for the fire 扉. Comparing the cargo trolley with the goods, use a complex device to control the walking trolley to prevent the trolley 5 1 OK to prevent the center position. Downward (5 1 stops at 5 3 cannot be covered (2) 1228481 It is inconvenient to break the walking track 5 2. That is, for example, when a carriage 5 1 stops in the direction of the carriage 5 1 and stops behind the fire prevention cage 5 3 Then, the other trolleys 5 walking from the rear stop by the front carriage sensor 5 3 directly below the fire prevention 扉 5 3 so as not to collide with a car 5 1, and in this state, the fire prevention 扉 5 3 descends in the direction of Η At this time, it will collide with the trolley 5 1 and cannot block the walking track 5 2. In this way, it is known that the traveling track 52 before and after the fire prevention 扉 5 3 is provided with a detection trolley 5 1 Passed trolley sensor 54 φ '5 5. The trolley sensor 5 5 is arranged between the fire protection 扉 5 3 and the position where the trolley 51 can enter sufficiently far away. In addition, on the traveling track 52 'There is also a transmitter 5 6 which transmits a signal allowed to enter the section L confronted by the trolley sensors 5 4 and 5 5 to the trolley 5 1. Moreover, the trolley 51 is provided with a receiving trolley sensor. Receiver of the access permission signal transmitted by the transmitter 54. With the above configuration, only one can be entered in the interval L. Section control of the vehicle 51. That is, when the vehicle 51 is positioned in the section L by the vehicle sensor 54, the other vehicles 51 traveling from behind the vehicle 51 will not have the slave 5 6 sends an entry permission signal for section L. Therefore, the other trolley 51 becomes stopped outside the section L. After that, when the preceding trolley 5 passes the trolley sensor 5 5, the entry permission signal is sent from the transmitter 5 6 Sending to the trolley 51 makes the following trolley 51 enter into the section L. Therefore, the stop of the trolley 51 is prevented directly below the fire prevention 扉 53, so that the collision of the trolley 51 and the fire prevention 扉 53 can be prevented. However, in the conventional conveying system, in order to perform section control, two trolley sensors 5 4, 5 5 and a transmitter 5 6 are provided on the (3) · 1228481 traveling track, and the trolley 5 1 is also Since a receiver for receiving the access permission signal is provided, there is a problem that the cost of constructing the transportation system becomes high. In addition, in order for the trolley 51 to receive the signal of the transmitter 56, the trolley 51 must be slowed down, resulting in shortened cargo. Obstacles in carrying time. [Inside the invention [Content] The present invention was created in view of the above-mentioned matters, and an object thereof is to provide a transport system capable of preventing a collision between a fire-resistant maggot and a trolley while preventing the collision easily. In order to solve the above-mentioned problem, the present invention is The following means are proposed. A first aspect of the present invention is a conveyance system, which includes a plurality of trolleys that are provided with a walking rail and can be moved along the walking rail, and is disposed in the midway position of the above walking rail to block walking during a fire The rail fire prevention shovel conveying system is characterized by comprising: the first detection means provided on the trolley and detecting the preceding trolley on the side of walking; the traveling track provided in the direction of the trolley; A detected member; and a second detection means provided on each of the carts to detect the detected member. According to the conveying system of the present invention, the second detection means provided in the trolley detects the detected member arranged on the traveling track, so that the trolley itself detects that the parking space is on the front side of the fire prevention ridge. In this state, when the first detection means provided in the trolley detects the preceding trolley, the trolley does not stop at the interrupted position of the walking track according to the fire prevention, and can be stopped. 6- (4) 1228481 Right front side. That is, the speed of the trolley can be controlled by the first and second detection and detection means provided on the trolley and the detected member provided on the traveling track. Therefore, it is not necessary to provide a control device for controlling the traveling track. In addition, since the speed of the trolley is controlled by the first and second detection means provided on the trolley, it is not necessary to slow down the trolley excessively. As a result, it is possible to shorten the transportation time of goods. Moreover, in the above-mentioned conveying system, the detected member is arranged in a plural number in the traveling direction of the trolley with an interval of φ, and the first detection means detects the preceding trolley in an area separated by the plurality of detected members. At this time, it is also possible to reduce the speed to stop the trolley. According to the transportation system of the present invention, when the trolley detects the preceding trolley by the first detection means in the area separated by the plurality of detected members, the trolley can stop decelerating. Therefore, by changing the speed of the trolley according to the detection of the detected member by the second detection means, it is possible to prevent the trolley from stopping at the interrupted position of the walking track against fire. φ That is, the first and second detection means provided on the trolley and the plurality of detected members provided on the traveling track can control the velocity of the trolley. Therefore, it is not necessary to provide the control for the speed of the console car on the traveling track. Apparatus 〇 In the transportation system, when the trolley is traveling when the trolley detects the member to be detected that is close to the fire prevention cymbal, it is not necessary to stop the trolley to travel. According to the conveying system of the present invention, when the trolley reaches the inspected member close to the square of fire prevention (5) * 1228481, it still walks without stopping. Therefore, in a region separated by a plurality of detection members, when the speed of the trolley becomes insufficient, the trolley becomes a blocking position that can pass through the traveling track that prevents fire. Therefore, it can prevent the trolley from stopping in the blocking position according to the fire prevention. Moreover, in the above-mentioned conveying system, the first detection means includes two detection areas for detecting the preceding trolley below two different detection distances; and in the first detection area outside the area separated by the plurality of detected members, In the field of φ detection, when the preceding trolley is detected by the first detection means, the trolley is decelerated to walk; in the second detection field with a detection distance shorter than the first detection field, the detection is performed by the first detection means. When the preceding trolley is decelerated to stop the trolley, according to the transportation system of the present invention, when the preceding trolley is detected in the first detection field with a longer detection distance, the trolley is decelerated in advance, so the second inspection with a shorter detection distance is performed. In the field of detection, when the preceding trolley is tested, the trolley can be stopped at a short distance. Therefore, the trolley can stop without chasing the preceding trolley. [Embodiment] Figs. 1 to 6 show an embodiment of a conveyance system according to the present invention. The transport system 100 of this embodiment has a plurality of floors. For example, as shown in the figure below, a person who can move goods in each room of a hospital building with high efficiency is provided with a walking track 1 and a walking track that can be walked. 8-(6) 1228481 A plurality of trolleys 1 〇 , And is arranged on the way of the walking track 1, for the trolley] 0, a plurality of stations S T for loading and unloading the goods. In addition, in the transportation system 100, when a fire occurs in one room, in order to suppress the burning to other rooms, a fire prevention box 20 is provided on the way of the walking track 1 to block each room. The station ST is a user for loading and unloading the cargo on the trolley 10, and is provided with an operation stove for instructing the transportation of the cargo at the other station ST. The station ST is located not only on the same floor of the building, but also on other floors. Therefore, the transportation of goods from one floor to another floor is performed by the elevator 5 which raises and lowers the trolley 10 up and down. As shown in FIG. 2, in a state where no fire has occurred, the fire prevention 扉 20 can be accommodated above the walking rail 1 through the blocking position W of the walking rail 1. In the event of a fire, the fire protection 扉 20 descends from above the walking track 1 to the downward direction (direction B) and becomes a blocking travel track! . The section X, which is provided on the entire front and back along the direction of the walking track 1 from the fire prevention line 20, is to close the empty space of the walking track 1 required for the fire prevention line 20. That is, when the trolley 10 is within the section X, when the fire prevention cymbal 20 is closed, the fire prevention cymbal 20 comes into contact with the trolley 10 and becomes in a state in which the traveling track 1 cannot be blocked. On the upper surface 1 a of the walking track 1, bar code marks S a and SB are affixed, and the bar code mark S b is affixed to the position of the trolley 10 before entering the section X in the direction of a. Also, the bar code mark SA is placed at a position immediately ahead of the bar code mark S B at a certain interval toward the fireproof cymbal 20. These bar code marks s A and S B are on the front side of the trolley X entering the section X in the direction of {al A}, and are used to control the walking speed of the trolley (10) 1228481. · Trolley 10 is used to load cargo at one station ST and transport it to another station sT. The cart 10 is equipped with a front carriage sensor (first detection means) 11 and a bar code reader (second Detection means) 12; and a control device (not shown) provided with the running speed of the console car 10. The front carriage sensor 11 is used to detect the carriage 10 that is moving in the direction (direction A) of the carriage 10, and has two detection distances. The first detection distance (first detection area) B 1 is the trolley 10 that is traveling at the highest speed, and when another vehicle I __ stopped in front is detected, the trolley 10 is slowly decelerated from the highest speed. Chase the preceding trolley for a distance of 10. In addition, the second detection distance (second detection area) B2 is a distance at which the trolley 10 must be stopped immediately in order to prevent a collision with the preceding traveling track 10. The bar code reader 12 is used for detecting the bar code marks SA and S B posted on the walking track], and is opposed to the upper side of the walking track 1; [a side is provided on the lower end of the trolley 10]. The bar code reader 12 can read the bar code marks s A and S b, and the trolley 10 can be positioned directly in front of the section X. ·! The control device becomes the travel speed of the controllable vehicle 10 based on the information around the vehicle 1 〇 obtained by using these front travelling sensors n and the bar code reader 12. In the transportation system 100 constructed as described above, the walking speed of the trolley 〇 is changed by the inter-vehicle distances B 1 and B 2 from the preceding trolley 10 and the bar codes S a and S b. The travel control of the trolley i 0 will be described below. That is, as shown in Fig. 3, first, the control device travels the trolley 1 0 at the first set speed V 1 (step s 丨). The first set speed v is ~ 10 ~ (8) 1228481 The trolley 1 〇 transported the goods and walked on the walking track 1. With the front trolley sensor 11, the trolley 1 that precedes the trolley 1 〇 is not detected. Speed of the state. After that, the process proceeds to step S2, and the front travel sensor 11 determines that the inter-vehicle distance from the trolley 10 is below the first detection distance B1, and when the inter-vehicle distance is greater than the first detection distance B1, it returns to The process proceeds to step S1 and the subsequent trolley 10 is traveled at the first set speed V]. When the inter-vehicle distance from the preceding trolley 10 is less than the first detection distance B 1, the process proceeds to step S 3, and the front-travel sensor 11 determines whether the inter-vehicle distance is the second detection distance B 2. the following. As a result, when the inter-vehicle distance from the preceding trolley 10 is greater than the second detection distance B2, the process proceeds to step s4, and the barcode reader 12 is used to determine whether the subsequent trolley 1 is marked with a bar code S Α, S β. Separated area. As a result, when the subsequent cart 10 is not in the area separated by the bar code marks S A and S B, the process proceeds to step S5, and the control device changes the speed of the subsequent cart 10 to the second set speed V2. Here, the second set speed · γ2 is a slower speed than the first set speed V !. That is, the following trolley 10 is walking at the first set speed V], and the inter-vehicle distance from the preceding trolley 10 becomes the first detection distance B1, and then becomes the first—§5: constant speed V 2 slow down. After completion of the processing of step s5 ', the processing shown in step S2 is performed. When it is determined in step S 3 by the front vehicle sensor] that the second detection distance B2 is less than the inter-vehicle distance from the preceding cart 10, the process proceeds to step S6, and the control device sets the vehicle speed target. Change to 0, decelerate to stop the following trolley 10. After that, in step S7, it is determined whether or not the following car] (9) 1228481 is stopped, and when the car 10 is not stopped ', the processing shown in step S2 is performed. Further, in step S4, when the next 10 carts are judged by the barcode reader 12 to be within the interval between the bar code marks sa and SB, the processing shown in steps S6 and S7 is performed in the same manner as described above. . That is, in a state where the inter-vehicle distance from the preceding trolley 10 is less than the first detection distance B 1, when the inter-vehicle distance becomes less than the second detection distance B 2, or the subsequent trolley 10 enters the bar code marks SA, S In the interval of 'b', decelerating to stop the following car 1 ◦ ° In step S7, when the following car 10 stops, the inter-vehicle distance from the preceding car 10 is the first in the interval of the bar code marks SA and SB. When the first detection distance B 1 or more, or when it becomes the second detection distance B 2 or more outside the interval of the bar code marks s A and SB, the subsequent trolley 10 starts to walk. The graphs in FIGS. 4 to 6 are examples of speed control. The horizontal axis of each graph indicates the position of the traveling track, and the trolley 10 is created to move from the left side to the right side of the paper surface along the horizontal axis. The vertical axis of each graph indicates the target speed of the cart 10 and the actual speed of the cart 10 according to the control device. For example, as shown in FIG. 4, when the position of the carriage 10 in the direction S c immediately before the bar code mark SA is located, and the inter-vehicle distance from the preceding carriage 10 is equal to or less than the first detection distance B 1, The process of step S5 causes the vehicle speed of the subsequent trolley 10 to decelerate toward the second set speed V2. This deceleration is performed to prevent damage to the cargo loaded on the trolley 10, and to smoothly proceed over a long distance. When passing the bar code mark SA, the process of step S6 is performed to decelerate to (10) 1228481 Stopping a trolley 10 and stopping in front of the bar code mark S b. For example, as shown in FIG. 5, when the traveling direction of the trolley 10 is positioned more forward than the position S c and the inter-vehicle distance from the preceding trolley is less than or equal to the first detection distance B 1, the procedure is performed. The processing of s 5 causes the subsequent vehicle speed of the trolley 10 to be reduced to the second set speed V2. When the bar code mark Sa is passed at the vehicle speed, the process of step S6 is performed, and the subsequent trolley 10 stops in the interval separated by the bar code marks SA and SB. For example, as shown in FIG. 6, when the inter-vehicle distance between the position sc and the bar code mark s A 'and the preceding trolley 10 is less than or equal to the first detection distance B 1, the process of step S 5 is performed so that the subsequent The speed of the trolley 丨 〇 is decelerated toward the second set speed V2. Further, the subsequent carriage 10 passes the bar code mark Sa 'at the vehicle speed, then performs the process of step S6, and decelerates to a stop. However, when the following trolley 10 passes the bar code mark SB, the process of step S5 is further performed, and the vehicle 10 is accelerated to the second set speed V2, and is in the state of passing through the blocking position W of the fireproof cymbal 20. That is, between the position S c and the bar code mark S b, when the front carriage sensor 1 丨 φ detects the first detection distance B 1, the subsequent car 1 〇 cannot stop at the bar code mark d S even if it decelerates. b's regular square. Therefore, as shown in FIG. 2, when the subsequent trolley 10 is at the position S c, there must be at least one trolley between the front end boundary X 1 of the section X and the preceding trolley 10. Positionable degree of clearance. Therefore, the first detection distance B 1 is set as the addition trolley! 〇 The braking distance from the set speed V! —To the stop (the length from the position Sc—to the barcode mark s B), the length of the interval X, the second detection distance B 2 -13- (11) 1228481, and a The length of the trolley 10 is ideal. In addition, an emergency stop mechanism is provided in the transport system 100 to prevent collision of the trolley 10 and the fire prevention mechanism 20 more reliably. The emergency stop mechanism 1 50 is composed of a transmitter 3 1 provided on the top wall surface 3 0 above the running track 1 and a receiver (not shown) provided on the trolley 10 and receiving signals transmitted from the transmitter 31. (Shown), and the bar code marks SB and SD provided on the traveling track 1. The transmitter 31 is a receiver who transmits a signal allowing access to the section X to the receiver of the trolley 10, and sends an access permission signal in a normal state ′ and stops the sender of the permission signal in a fire. The bar code mark SD is placed on the upper surface 1a side of the traveling track 1 facing the fireproof cylinder 20 more forward than the bar code mark SA. In the state where the trolley 10 is walking in the direction of A, the area separated by the bar code marks SB and SD, when the receiver receives the admission signal, it performs walking according to the speed control described above. In addition, when the access permission signal is not received, the vehicle 10 is stopped by emergency braking, and collision between the vehicle 10 and the fire prevention unit 20 is reliably prevented. Here, the emergency braking means that the trolley 10 can be forcibly stopped at a slight distance from the first set speed V !. φ As described above, the barcode reader 1 2 provided on the trolley according to the conveying system 1 0 0 detects the barcode marks S a and S b arranged on the traveling track 1, and thus becomes the trolley 10 itself. The trolley 10 is located directly in front of the fireproof raft 20. In the interval separated by the bar code marks Sa and Sb, when the front carriage sensor 11 of the carriage 10 detects another preceding carriage 10, the carriage 10 is decelerated to a stopped state. . Therefore, by detecting the bar code marks SA and SB according to the bar code reader 12, the speed of the trolley 10 can be changed to prevent the trolley]. Stopping at -14- (12) 1228481 Fire 扉 2 0 The interruption position w of the running track 1. When the trolley 10 reaches the bar code mark Sb, it does not stop traveling. Therefore, in the area separated by the bar code marks S a and S b 'If the deceleration of the trolley 10 is insufficient, the trolley 10 is a blocking position W which can pass the traveling track 1 according to the fire prevention 扉 2 0. . Therefore, the bogie 10 can be prevented from stopping at the blocking position W of the guard fire 20. From the above, the speed of the trolley 10 can be achieved by the front carriage sensor 11 1 'bar code reader 12 provided on the trolley 10 and the bar code marks S a and S b' provided on the traveling track 1. control. Therefore, it is not necessary to install the control device on the traveling track 1 for the speed control of the trolley 10, so the installation cost of the transport system 100 can be reduced. Moreover, it is unnecessary to reduce the speed of the trolley, thereby reducing the time required for cargo transportation. In addition, when the front carriage sensor 11 of the carriage 10 detects the preceding carriage 10 at the first detection distance B1, 'to decelerate the carriage 10 beforehand', the detection of the preceding carriage 1 0 at the second detection distance B2. At this time, the trolley 10 can be stopped at a short distance. Therefore, the trolley 10 is stopped without chasing the preceding trolley 10. In the above-mentioned embodiment, the positions where the bar code marks SA and SB are posted are not limited to the upper surface 1 a 'of the traveling track 1 but on the traveling track. Below 1 is also possible. It is not limited to the bar code marks SA and SB. For example, a bar code mark may be separately provided in front of each station ST. At this time, the bar code reader 12 detects the bar code mark directly in front of the station ST, and conveys the situation that the goods arrive at the station ST intended for transportation to the control device of the trolley 10, that is, the deceleration table (13) 1228481 car 1 〇 Become stopped at station s τ. In addition, the blocking of the walking track 1 according to the fire prevention 扉 20 can be performed when a fire occurs, but it is not limited to this. For example, it is also possible to create the fire prevention 扉 2 0 when a toxic gas occurs in a room. . In addition, the fire prevention 扉 20 is accommodated above the walking track 1 and is made to move in the direction B to block the walking track I, but is not limited to this. For example, it is stored in the lower side of the walking track 1 from the walking track The lower side of 1 may move upward to block the traveling track 1 or may be housed on the side of the traveling track 1, and may block the traveling track 1 from both sides of the traveling track 1. [Brief Description of the Drawings] Fig. 1 is a schematic diagram showing a conveyance system according to an embodiment of the present invention. Fig. 2 is a schematic diagram showing a walking track around a fireproof cymbal in the first broken conveyance system. Fig. 3 is a flowchart showing the speed control of the trolley in the conveyance system of Fig. 1. Fig. 4 is a graph showing the speeds and set speeds of the trolleys on the front side of the fire extinguisher in the transport system of Fig. 1. Fig. 5 is a graph showing the speeds and set speeds of the trolleys on the front side of the fire prevention system in the conveying system of Fig. 1. Fig. 6 is a graph showing the speeds and set speeds of the trolleys on the front side of the fire prevention hood in the conveying system of Fig. 1. Fig. 7 is a schematic diagram showing an example of a conventional conveying system. -16- (14) (14) 1228481 [Description of symbols] 1 Traveling track 10 Trolleys 1] Front travelling sensor (first detection means) 12 Bar code reader (second detection means) 2 0 Fire prevention 扉 1 〇 〇Transportation system B 1 First detection distance (first detection area) B2 Second detection distance (second detection area) SA, SB Bar code mark (detected member)