TWI707311B - Intelligent mobile system for warning devices - Google Patents
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本發明係關於一種警示裝置在移動時可保持一緩衝距離之警示裝置之智慧移動系統。 The present invention relates to a smart mobile system for a warning device that can maintain a buffer distance when the warning device is moving.
目前在道路施工、行道樹修剪或是修剪路旁樹木時,為了施工人員或是用路人的安全,習知方法一般只能透過工人在適當位置放置一警示裝置,例如假人或閃光燈座,然後讓該警示裝置發出警示聲音、燈光或動作等訊號。 At present, during road construction, pruning of sidewalk trees or pruning of roadside trees, for the safety of construction workers or passers-by, conventional methods can only be used by workers to place a warning device, such as a dummy or flashlight stand, in an appropriate position, and then let The warning device emits warning sounds, lights, or motion signals.
習知技術公告號M515004為一種道路狀況警示裝置,其主要由警示設備及警示訊號接收設備搭配而成,其中警示設備裝設一供發出警示訊號之警示發射單元,且警示設備裝須被擺放在定點位置,而警示訊號接收設備則擺設於非定點位置,其中警示訊號接收設備裝設一供接收該警示訊號之警示接收單元及一連接該警示接收單元之警示器,當警示接收單元接收到來自警示發射單元的警示訊號則可透過警示器主動告知駕駛人員前方有交通事故或是路面整修等,使駕駛人員能有預期心理並增加行車的專注力,進而能大幅降低交通意外發生。 The prior art bulletin No. M515004 is a road condition warning device, which is mainly composed of warning equipment and warning signal receiving equipment. The warning equipment is equipped with a warning transmission unit for issuing warning signals, and the warning equipment must be placed At a fixed point, the warning signal receiving equipment is placed in a non-fixed position. The warning signal receiving equipment is equipped with a warning receiving unit for receiving the warning signal and a warning device connected to the warning receiving unit. When the warning receiving unit receives The warning signal from the warning transmitter unit can actively inform the driver of a traffic accident or road repair ahead through the warning device, so that the driver can have anticipation and increase driving concentration, thereby greatly reducing the occurrence of traffic accidents.
習知技術公告I650738係提供一種偵測高速接近之危險警報系統包含有一靜止放置的偵測裝置以及一與該偵測裝置電性連接的警報裝置,該偵測裝置利用一雷達偵測模組、一中央處理模組偵測並運算接近物體之速度,並透過一臨限判斷單元判斷是否已超出危險的臨界值,並透過該警報裝置發出警報,系統可運用在靜止置放之三角錐、警示牌上,讓進行擺放的使用者提早透過該警報裝置發現快速移動的物體接近中而進行迴避或降低損害。另一方面可運用在警察臨檢上,降低警察於執行勤務中因攔檢車輛暴衝而受傷的機會。 The prior art bulletin I650738 provides a hazard warning system for detecting high-speed approach. It includes a stationary detection device and an alarm device electrically connected to the detection device. The detection device uses a radar detection module, A central processing module detects and calculates the speed of an approaching object, and determines whether it has exceeded the critical value of danger through a threshold determination unit, and sends out an alarm through the alarm device. The system can be used in static triangles and warnings. On the card, the user who is placing it can find the fast-moving object approaching through the alarm device in advance to avoid or reduce damage. On the other hand, it can be used in police inspections to reduce the chance of police being injured due to the violent rush of vehicles during the execution of duties.
惟,上述習知技術中,若是在道路施工、行道樹修剪等工作場合時,當工程車須要移至下一個施工點時,就須要人工去移動或收回該警示裝置,無法讓該警示裝置自動跟隨工程車行進,並與工程車保持一適當之安全緩衝距離,減少人工及避免工人前往移動警示裝置的途中發生車輛追撞等意外,尤其在夜間時刻及高速公路上,因此有必要加以改良。 However, in the above-mentioned conventional technology, if it is during road construction, pruning of sidewalk trees, etc., when the engineering vehicle needs to move to the next construction site, it is necessary to manually move or retract the warning device, and the warning device cannot be automatically followed. The construction vehicle is traveling and maintains an appropriate safety buffer distance with the construction vehicle to reduce labor and avoid accidents such as vehicle chase and collision on the way to the mobile warning device, especially at night and on the highway, so it is necessary to improve it.
本發明之一目的在提供一種警示裝置之智慧移動系統,該警示裝置之智慧移動系統提供一警示裝置自動位移至一適當之定點位置。 An object of the present invention is to provide a smart mobile system of a warning device, which provides a warning device to automatically move to an appropriate fixed point position.
本發明之另一目的在提供一種警示裝置之智慧移動系統,該警示裝置之智慧移動系統提供一警示裝置自動跟隨一參考目標裝置移動,且該警示裝置在移動時與該參考目標裝置保持一緩衝距離。 Another object of the present invention is to provide a smart mobile system for a warning device. The smart mobile system of the warning device provides a warning device that automatically follows a reference target device to move, and the warning device keeps a buffer with the reference target device when it moves distance.
本發明之另一目的在提供一種警示裝置之智慧移動系統,該警示裝置之智慧移動系統提供一輔助警示功能,用以在緊急時刻發出警示提醒使用者提高警覺或盡速閃避。 Another object of the present invention is to provide a smart mobile system for a warning device. The smart mobile system of the warning device provides an auxiliary warning function for issuing a warning in an emergency to remind the user to be alert or to dodge as soon as possible.
本發明之另一目的在提供一種警示裝置之智慧移動系統,該警示裝置之智慧移動系統提供具有紀錄儲存靠近該警示裝置之物體移動影像。 Another object of the present invention is to provide a smart mobile system of a warning device. The smart mobile system of the warning device provides a record and storage of moving images of objects close to the warning device.
為達成上述及其他目的,本發明之警示裝置之智慧移動系統在一個實施例中包含:一警示裝置,該警示裝置包含一驅動載具、一警示架台、一偵測模組、一第一無線通訊模組、一第一定位模組、一第一連線模組、一第一控制模組及一供電模組,其中,該驅動載具裝設該警示架台用以使該警示架台可以移動行進,該警示架台設有一警示器,且該驅動載具上設置有該偵測模組、該第一無線通訊模組、該第一定位模組、該第一控制模組及該供電模組,該偵測模組用以偵測靠近該警示裝置之物體,並將偵測到之訊息資料傳至該第一控制模組,該第一無線通訊模組用以提供遠端訊號傳送及控制,該第一定位模組用以提供該警示裝置位的置定位資訊,該第一控制模組用以執行該警示裝置之系統運作,該供電模組用以提供該警示裝置之運作電力,且該警示架台、該驅動載具、該偵測模組、該第一無線通訊模組、該第一定位模組、該第一連線模組及該供電模組分別與該第一控制模組電性連接進行控制訊號與資訊傳遞;一參考目標裝置,該參考目標裝置包含一第二無線通訊模組、一第二定位模組、一第二連線模組及一第二控制模組,該第二無線通訊模組用以提供遠端訊號傳送及控制,該第二定位模組用以提供該參考目標裝置的位置定位資訊,該第二控制模組用以執行該參考目標裝置系統運作,且該第二無線通訊模組、該第二定位模組及該第二連線模組分別與該第二控制模組電性連接進行控制訊號與資訊傳遞;及一系統設定裝置,安裝有一系統設定模組,該系統設定模組分別透過該第一連線模組及該第二連線模組進行該警示裝置與該參考目標裝置之作動設定,其中,當該設定模組完成 設定後,該警示裝置將自動移動至一預先設定之位置,並與該參考目標裝置保持一緩衝距離。 In order to achieve the above and other objectives, the smart mobile system of the warning device of the present invention includes in one embodiment: a warning device, the warning device including a drive carrier, a warning stand, a detection module, and a first wireless A communication module, a first positioning module, a first connection module, a first control module, and a power supply module, wherein the driving carrier is equipped with the warning stand for making the warning stand movable When traveling, the warning stand is provided with a warning device, and the driving carrier is provided with the detection module, the first wireless communication module, the first positioning module, the first control module, and the power supply module , The detection module is used to detect objects close to the warning device, and the detected message data is transmitted to the first control module, and the first wireless communication module is used to provide remote signal transmission and control , The first positioning module is used to provide the location information of the warning device, the first control module is used to execute the system operation of the warning device, the power supply module is used to provide the operating power of the warning device, and The warning stand, the drive carrier, the detection module, the first wireless communication module, the first positioning module, the first connection module and the power supply module are respectively the same as the first control module It is electrically connected for control signal and information transmission; a reference target device, the reference target device includes a second wireless communication module, a second positioning module, a second connection module, and a second control module, The second wireless communication module is used to provide remote signal transmission and control, the second positioning module is used to provide position positioning information of the reference target device, and the second control module is used to perform system operations of the reference target device , And the second wireless communication module, the second positioning module, and the second connection module are respectively electrically connected with the second control module for control signal and information transmission; and a system setting device is installed System setting module, the system setting module performs the operation setting of the warning device and the reference target device through the first connection module and the second connection module, wherein, when the setting module is completed After setting, the warning device will automatically move to a preset position and maintain a buffer distance from the reference target device.
在本發明的一些實施例中,其中,該當該參考目標裝置的位置移動時,該警示裝置跟隨該參考目標裝置的位置進行相對應的移動並保持一預先設定之緩衝距離。 In some embodiments of the present invention, when the position of the reference target device moves, the warning device follows the position of the reference target device to move correspondingly and maintain a preset buffer distance.
在本發明的一些實施例中,其中,該緩衝距離可以透過該系統設定模組依據當下狀況進行即時調整。 In some embodiments of the present invention, the buffer distance can be adjusted in real time according to the current situation through the system setting module.
在本發明的一些實施例中,其中,該警示架台係組合式地設置於該驅動載具上。 In some embodiments of the present invention, the warning stand is assembled on the driving carrier.
在本發明的一些實施例中,其中,該偵測模組為雷達、影像辨識器或超音波感測器。 In some embodiments of the present invention, the detection module is a radar, an image recognizer, or an ultrasonic sensor.
在本發明的一些實施例中,其中,該參考目標裝置設有一輔助警示模組,與該第二控制模組電性連接,用以提供使用者輔助警示提醒功能。 In some embodiments of the present invention, wherein the reference target device is provided with an auxiliary warning module, which is electrically connected to the second control module to provide the user with an auxiliary warning reminder function.
在本發明的一些實施例中,其中,當該偵測模組偵測到物體靠近該警示裝置達一設定之警示距離時,該輔助警示模組發出警示訊號。 In some embodiments of the present invention, when the detection module detects that an object approaches the warning device for a set warning distance, the auxiliary warning module emits a warning signal.
在本發明的一些實施例中,其中,當該警示裝置受到強烈撞擊時,該輔助警示模組發出警示訊號。 In some embodiments of the present invention, when the warning device receives a strong impact, the auxiliary warning module emits a warning signal.
在本發明的一些實施例中,該系統設定模組另包含一遠端控制單元,該遠端控制單元用以直接操控該警示裝置之移動。 In some embodiments of the present invention, the system setting module further includes a remote control unit for directly controlling the movement of the warning device.
在本發明的一些實施例中,該警示裝置另包含一影像紀錄模組,用以紀錄靠近該警示裝置之物體移動影像。 In some embodiments of the present invention, the warning device further includes an image recording module for recording moving images of objects close to the warning device.
10:警示裝置 10: Warning device
11:驅動載具 11: Drive the vehicle
12:警示架台 12: Warning stand
120:警示器 120: warning device
13:偵測模組 13: Detection module
14:第一無線通訊模組 14: The first wireless communication module
15:第一定位模組 15: The first positioning module
16:第一連線模組 16: The first connection module
17:第一控制模組 17: The first control module
18:供電模組 18: Power supply module
19:影像紀錄模組 19: Image recording module
20:參考目標裝置 20: Reference target device
21:第二無線通訊模組 21: The second wireless communication module
22:第二定位模組 22: The second positioning module
23:第二連線模組 23: The second connection module
24:第二控制模組 24: The second control module
25:輔助警示模組 25: auxiliary warning module
30:系統設定裝置 30: System setting device
31:系統設定模組 31: System Setting Module
310:遠端控制單元 310: Remote control unit
圖1為本發明之警示裝置之智慧移動系統之一實施例系統架構圖;圖2為本發明之警示裝置之智慧移動系統之一實施例警示裝置示意圖。 Fig. 1 is a system architecture diagram of an embodiment of the smart mobile system of the warning device of the present invention; Fig. 2 is a schematic diagram of the warning device of an embodiment of the smart mobile system of the warning device of the present invention.
圖1為本發明之警示裝置之智慧移動系統之一實施例系統架構圖,請參考圖1。本發明之警示裝置之智慧移動系統包含一警示裝置10、一參考目標裝置20及一系統設定裝置30,其中,該警示裝置10包含一驅動載具11、一警示架台12、一偵測模組13、一第一無線通訊模組14、一第一定位模組15、一第一連線模組16、一第一控制模組17及一供電模組18,且該驅動載具11、該警示架台12、該偵測模組13、該第一無線通訊模組14、該第一定位模組15、該第一連線模組16及該供電模組18分別與該第一控制模組17電性連接進行控制訊號與資訊傳遞。
FIG. 1 is a system architecture diagram of an embodiment of the smart mobile system of the warning device of the present invention. Please refer to FIG. 1. The smart mobile system of the warning device of the present invention includes a
圖2為本發明之警示裝置之智慧移動系統之一實施例警示裝置示意圖,請參考圖2。其中,該驅動載具11裝設該警示架台12用以使該警示架台12可以移動行進,該警示架台12設有一警示器120,其中該警示器120可依狀況替換使用不同樣式之警示號誌,當該驅動載具11運轉時可以將該警示架台12移動至一預定位置,使該警示器120讓用路人或駕駛在距離施工者一定距離前就可看到警示號誌,而提早注意前方路況,該警示器120可以為蜂鳴器、閃光燈、LED燈板或旗幟等警示號誌。
2 is a schematic diagram of a warning device in an embodiment of the smart mobile system of the warning device of the present invention. Please refer to FIG. 2. Wherein, the driving
該驅動載具11上還設置有該偵測模組13、該第一無線通訊模組14、該第一定位模組15、該第一連線模組16、該第一控制模組17及該供電模組18,其中,該偵測模組13用以偵測靠近該警示裝置10之物體,並將偵測到之訊息資料傳至該第一控制模組17,例如,該偵測模組13可以偵測靠近施工地點附近的行經的車輛,並將偵測到的車輛移動訊號傳送至該第一控制模組17進行訊號分析及判斷。較佳地,該偵測模組13為雷達、影像辨識器或超音波感測器,本實施例中以超音波感測器為之,超音波感測器可以透過發送一超音波與接受其反射波來量測前方在一定距離內物是否有物體,以及測得該物體與超音波感測器間之距離,進而判斷是否有車輛進入一警示距離範圍,例如當該警示距離設定為10公尺,則當有車輛接近該警示裝置10且距離小於10公尺時,該偵測模組13所測得之訊號傳送至該第一控制模組17時將被判斷進入警示範圍。
The
該第一無線通訊模組14用以提供遠端訊號傳送及控制,該第一無線通訊模組14可以為4G/5G通訊系統或Wi-Fi通訊系統,可以與具有4G/5G或Wi-Fi通訊系統進行網路連線作為資料或控制訊號的傳送。
The first
該第一定位模組15用以提供該警示裝置10的位置定位資訊,該第一定位模組15在本實施例中為全球定位系統GPS(Global Positioning System),可以準確定位出該警示裝置10的實際位置,並透過該第一無線通訊模組10將定位資訊傳送出去。
The
該第一連線模組16用以與該系統設定裝置30電性連線,使得該系統設定裝置30可以藉由該第一連線模組16傳送控制訊號與該第一控制模組17進行操控設定,使得該警示裝置10後續可執行使用者所設定之作動程序,其中,本實施例中該第一連線模組16為藍芽通訊模組。
The
該第一控制模組17用以執行該警示裝置10之系統運作,包含控制訊號、數據資料的處理等,以及控制該警示器120的警示訊號內容或方式之變換等,而該供電模組18用以提供該警示裝置10運作所需之電力,包含該警示裝置10上各功能模組之電力來源。
The
該參考目標裝置20包含一第二無線通訊模組21、一第二定位模組22、一第二連線模組23及一第二控制模組24,且該第二無線通訊模組21、該第二定位模組22及該第二連線模組23分別與該第二控制模組24電性連接進行控制訊號與資訊傳遞,其中,該第二無線通訊模組21可以為4G/5G通訊系統或Wi-Fi通訊系統,可以與具有4G/5G或Wi-Fi通訊系統進行網路連線作為資料或控制訊號的傳送。
The
該第二定位模組22用以提供該參考目標裝置20的位置定位資訊,該第二定位模組22在本實施例中為全球定位系統GPS(Global Positioning System),可以準確定位出該參考目標裝置20的實際位置,並透過該第二無線通訊模組21將定位資訊傳送出去。
The
該第二連線模組23用以與該系統設定裝置30電性連線,使得該系統設定裝置30可以藉由該第二連線模組23傳送控制訊號與該第二控制模組24進行操控設定,使得該參考目標裝置20後續可執行使用者所設定之作動程序,其中,本實施例中該第二連線模組23為藍芽通訊模組。
The
該系統設定裝置30,安裝有一系統設定模組31,該系統設定模組31分別透過該第一連線模組16及該第二連線模組23進行該警示裝置10與該參考目標裝置20之作動設定,同時使該第二無線通訊模組21與該第一無線通訊模組14電性連接進行訊號傳遞,其中,當該設定模組30完成系統設定後,該警示裝置
10將自動移動至一預先設定之位置,並與該參考目標裝置20保持一緩衝距離,其中,本實施例中該系統設定裝置30為平板電腦,當然,該系統設定裝置30也可為智慧手機或具有無線連線操控功能之電子控制器。
The
舉例說明之,施工人員或使用者在高速公路上或一般道路上準備施工或是修剪行道樹時,可以將該參考目標裝置20放置在一停駛之工程車上,然後透過該系統設定模組31完成該警示裝置10與該參考目標裝置20設定後,由於該參考目標裝置20經由該第二定位模組22取得位置之經緯度資訊,而該警示裝置10也由該第一定位模組15取得位置之經緯度資訊,因此,若將該緩衝距離設定為100公尺,則該警示裝置10將由該第一控制模組17啟動該驅動載具11轉動行進,使該警示裝置10自動移動至工程車後方距離100公尺之處,拉出一安全的緩衝區域,並透過該警示器120的警示作用提供用路人或駕駛注意前方的路況,施工人員並不需要用自行搬運的方式將該警示裝置10放置於預定地點,進而減少事故風險產生。
For example, when a construction worker or user is preparing for construction or pruning street trees on an expressway or a general road, the
而若是工程車需要移動至下一施工處時,一般仍需要施工人員前往放置警示器具的地方將其回收後再搬移至下一個警示定點位置,惟,尤其在高速公路上時,由於車速過快,施工人員前往回收警示器具時將有一定的風險產生,例如可能被追撞之事故發生。 If the construction vehicle needs to be moved to the next construction site, it is generally still necessary for the construction personnel to go to the place where the warning device is placed to retrieve it and move it to the next warning location. However, especially on the highway, due to the excessive speed of the vehicle. , The construction personnel will have certain risks when they go to recycle the warning equipment, such as possible chasing accidents.
較佳地,該當該參考目標裝置20的位置移動時,該警示裝置10跟隨該參考目標裝置20的位置進行相對應的移動並保持一預先設定之緩衝距離。當工程車緩慢前進時,工程車上之該參考目標裝置20將隨之移動,而該第二定位模組22將會即時更新定位資訊,並經由該第二無線通訊模組21與該第一無線通訊模組14電性連接,將該參考目標裝置20位置傳送給該警示裝置10,所以該警示
裝置10便可經由先前的設定跟隨著該參考目標裝置20移動,並使兩者間持續保持該緩衝距離,例如工程車緩慢前進時該警示裝置10會與該參考目標裝置20保持100公尺間距的方式前進,該施工人員並不需要前往原該警示裝置10所在之定點將其收回,可以減少被追撞的風險,提高施工人員的安全。
Preferably, when the position of the
較佳地,該緩衝距離可以透過該系統設定模組31依據當下狀況進行即時調整,若在施工當下,施工人員發現所拉出之安全距離不夠,則可以由該系統設定模組31重新設定該緩衝距離,則該警示裝置10將自動移動至新設定之定點位置,使該緩衝距離滿足當下的安全緩衝區域範圍,保障施工人員安全。
Preferably, the buffer distance can be adjusted in real time according to the current situation through the
較佳地,該警示架台12係組合式地設置於該驅動載具11,由於為了能夠有足夠的警示效果,該警示架台12一般會具有一定的高度或體積,為了該警示裝置10整體搬運及收納方便,該警示架台12係快拆式地組合在該驅動載具11上,方便施工人員搬運及收納。
Preferably, the warning stand 12 is assembled on the
較佳地,該參考目標裝置20設有一輔助警示模組25,與該第二控制模組24電性連接,用以提供使用者輔助警示提醒功能。其中,該警示模組25具有聲音或燈光之警示效果,如蜂鳴器或LED燈。
Preferably, the
較佳地,當該偵測模組偵13測到物體靠近該警示裝置10達一設定之警示距離時,該輔助警示模組25發出警示訊號,透過該輔助警示模組25提醒施工人員可能有車輛即將進入該緩衝區域,此時,施工人員可以提早注意來往車輛的狀況,避免衝撞危險發生。
Preferably, when the
較佳地,當該警示裝置10受到強烈撞擊時,該輔助警示模組25發出警示訊號。若在施工當時,有車輛未注意而衝撞該警示裝置10闖入該緩衝距離內,此時,該第一控制模組17立即透過該第一無線通訊模組14發出一緊急指令傳
送至該參考目標裝置20使該輔助警示模組25發出警示訊號通知施工人員,讓施工人員有時間反應立即逃離開,避免被闖進之車輛追撞造成傷亡。
Preferably, when the
較佳地,該系統設定模組31另包含一遠端控制單元310(未繪示),該遠端控制單元310用以直接操控該警示裝置10之移動。當施工告一段落時,為了方便將該警示裝置10快速收回,施工人員過該遠端控制單元310可以直接將該警示裝置10以遙控方式將其駛回工程車旁,該遠端控制單元310可以遙控方向、加速該驅動載具11,使其迅速回到工程車旁,不需人員前往收回,也可避免人員在回收該警示裝置10過程中產生被追撞的危險。
Preferably, the
較佳地,該警示裝置10另包含一影像紀錄模組19,用以紀錄靠近該警示裝置10之物體移動影像。若萬一有車輛闖入施工區域因而造成傷亡時,透過該影像紀錄模組19可以將當時發生的狀況錄影紀錄下來,有利於後續追究或檢討肇事原因,其中,該影像紀錄模組19可以為一數位攝影器。
Preferably, the
以上所述之實施例僅係為說明本發明之技術思想及特徵,其目的在使熟習此項技藝之人士均能了解本發明之內容並據以實施,當不能以此限定本發明之專利範圍,凡依本發明之精神及說明書內容所作之均等變化或修飾,皆應涵蓋於本發明專利範圍內。 The above-mentioned embodiments are only to illustrate the technical ideas and features of the present invention, and their purpose is to enable those who are familiar with the art to understand the content of the present invention and implement them accordingly. However, the patent scope of the present invention cannot be limited by this. All the equal changes or modifications made in accordance with the spirit of the present invention and the contents of the specification shall be covered by the scope of the patent of the present invention.
10:警示裝置 10: Warning device
11:驅動載具 11: Drive the vehicle
12:警示架台 12: Warning stand
13:偵測模組 13: Detection module
14:第一無線通訊模組 14: The first wireless communication module
15:第一定位模組 15: The first positioning module
16:第一連線模組 16: The first connection module
17:第一控制模組 17: The first control module
18:供電模組 18: Power supply module
20:參考目標裝置 20: Reference target device
21:第二無線通訊模組 21: The second wireless communication module
22:第二定位模組 22: The second positioning module
23:第二連線模組 23: The second connection module
24:第二控制模組 24: The second control module
30:系統設定裝置 30: System setting device
31:系統設定模組 31: System Setting Module
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Citations (4)
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CN2726058Y (en) * | 2004-08-31 | 2005-09-14 | 王云飞 | Self-propelled motor vehicle temporary parking alarm |
CN206826509U (en) * | 2016-12-28 | 2018-01-02 | 陈虎 | A kind of intelligent triangular warning board apparatus and warning system |
EP3432290A1 (en) * | 2017-07-18 | 2019-01-23 | Hongfujin Precision Electronics (Tianjin) Co., Ltd. | Warning device |
TWM580246U (en) * | 2018-12-28 | 2019-07-01 | 遠東科技大學 | Self-propelled warning device |
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CN2726058Y (en) * | 2004-08-31 | 2005-09-14 | 王云飞 | Self-propelled motor vehicle temporary parking alarm |
CN206826509U (en) * | 2016-12-28 | 2018-01-02 | 陈虎 | A kind of intelligent triangular warning board apparatus and warning system |
EP3432290A1 (en) * | 2017-07-18 | 2019-01-23 | Hongfujin Precision Electronics (Tianjin) Co., Ltd. | Warning device |
TWM580246U (en) * | 2018-12-28 | 2019-07-01 | 遠東科技大學 | Self-propelled warning device |
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