TWI411979B - Transmission control method of dynamic vehicle - Google Patents

Transmission control method of dynamic vehicle Download PDF

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TWI411979B
TWI411979B TW099130768A TW99130768A TWI411979B TW I411979 B TWI411979 B TW I411979B TW 099130768 A TW099130768 A TW 099130768A TW 99130768 A TW99130768 A TW 99130768A TW I411979 B TWI411979 B TW I411979B
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vehicle
dynamic
relay
vehicles
leading
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TW099130768A
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TW201211950A (en
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Hsu Yang Kung
Mao Yuan Kuo
Chi Hua Chen
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Univ Nat Pingtung Sci & Tech
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Abstract

A transmission control method of dynamic vehicle comprises: establishing a dynamic area by a leading vehicle; sending a route discovery packet to each vehicle inside a transmissible region of the leading vehicle by the leading vehicle; determining whether locate in the dynamic area or not by the first vehicle to receive the route discovery packet and deciding whether become a member vehicle or not; sending the route discovery packet to each of the vehicle inside the transmissible region of each member vehicle after a delay time by the member vehicle, and at this time the first vehicle to receive the route discovery packet becomes a relay vehicle; collecting the driving data by each of the relay vehicle periodical, and sending to the leading vehicle. Consequently, promoting the transmission quality in the dynamic environment.

Description

動態車輛之通訊傳輸控制方法Dynamic vehicle communication transmission control method

本發明係關於一種動態車輛之通訊傳輸控制方法,尤其是一種可於車隊行進間提供穩定傳輸品質的動態車輛之通訊傳輸控制方法。The invention relates to a communication transmission control method for a dynamic vehicle, in particular to a communication transmission control method for a dynamic vehicle capable of providing stable transmission quality between vehicle fleets.

隨著網際網路的蓬勃發展與成熟,各類型網路架構係逐漸被提出並廣泛應用於人們日常生活中,例如早期的乙太網路[Ethernet]到目前的無線網路[Wireless Network]及行動通訊網路[Mobile Communication Network]等,儼然已成為民眾分享資訊及通訊傳輸的重要管道。又,針對上述各類型網路架構的傳輸品質,亦為現代相當重視的議題之一。With the rapid development and maturity of the Internet, various types of network architectures have been proposed and widely used in people's daily lives, such as the early Ethernet [Ethernet] to the current wireless network [Wireless Network] and Mobile communication network, etc., has become an important channel for people to share information and communication transmission. Moreover, the transmission quality of the above various types of network architectures is also one of the issues that are highly valued by modern times.

舉例而言,目前常見之針對改善傳輸品質的習知通訊傳輸控制方法大致包含有以下二種:第一種習知通訊傳輸控制方法:係由Tomasz Imielinski等學者於1996提出,主要係透過地域性群播[Geocast]的概念,並配合使用GPS全球定位系統來定義出一有效傳輸範圍的大小,以建立一套地域性群組資訊的分享機制,進而可供位在該有效傳輸範圍內的使用者互相通訊傳輸,藉由地理資訊有效限制封包的傳送範圍,為地理區域性群體的廣播。For example, the conventional communication transmission control methods commonly used to improve transmission quality generally include the following two types: The first conventional communication transmission control method is proposed by Tomasz Imielinski and other scholars in 1996, mainly through regionality. The concept of [Geocast] is used together with the GPS global positioning system to define the size of a valid transmission range, so as to establish a sharing mechanism for regional group information, which can be used within the effective transmission range. The communication is transmitted to each other, and the geographic information is used to effectively limit the transmission range of the packet to broadcast for the geographical regional group.

然而,上述第一種習知通訊傳輸控制方法的應用範圍係僅限於靜態環境下的通訊傳輸,該有效傳輸範圍係為固定而無法跟隨使用者移動,故一旦使用者脫離該有效傳輸範圍後,則無法再接收訊號,並將導致傳輸中斷的情形發生。However, the application range of the first conventional communication transmission control method is limited to communication transmission in a static environment, and the effective transmission range is fixed and cannot follow the user's movement, so once the user leaves the effective transmission range, The signal can no longer be received and will cause the transmission to be interrupted.

第二種習知通訊傳輸控制方法:係由Qiangyuan Yu等學者於2008年提出,主要係透過動態調整地域性群播所建立之有效傳輸範圍,以建立一套持續性的地域性群播預警訊息散播機制,進而可確保訊息在傳輸過程中不會受到網路碎裂[Fragmentation]影響,有效避免通訊傳輸的中斷或延遲現象的發生。The second known communication transmission control method was proposed by Xueliang Yuan Yu and other scholars in 2008. It mainly establishes a set of continuous regional broadcast warning messages by dynamically adjusting the effective transmission range established by regional group broadcasting. The dissemination mechanism, in turn, ensures that the message is not affected by network fragmentation during transmission, effectively avoiding interruption or delay of communication transmission.

然而,上述第二種習知通訊傳輸控制方法雖可藉由持續評估網路狀況,以便即時調整該有效傳輸範圍的大小,但由於無線網路的傳輸距離相當有限,導致該有效傳輸範圍之調整裕度亦相對受限,且該有效傳輸範圍仍無法跟隨使用者移動,故該第二種習知通訊傳輸控制方法仍僅限於靜態環境下的通訊傳輸。However, the above-mentioned second conventional communication transmission control method can continuously adjust the condition of the effective transmission range by continuously evaluating the network condition, but the transmission range of the wireless network is limited due to the limited transmission distance of the wireless network. The margin is also relatively limited, and the effective transmission range still cannot follow the user's movement. Therefore, the second conventional communication transmission control method is still limited to communication transmission in a static environment.

有鑑於此,車用隨意無線網路[Vehicle Ad hoc Network]技術係逐漸發展來克服上述的缺點,主要係可供使用者於動態環境下進行通訊傳輸。舉例而言,大致可分為以下二種:第一種習知車用隨意無線網路技術:由Abdelmalik Bachir等學者於2003年提出,主要係藉由一行駛車輛來定義一可傳輸範圍,使該可傳輸範圍得以跟隨該行駛車輛的移動而隨時更新;同時,配合搜尋位在該可傳輸範圍內且與該行駛車輛距離最遠之另一行駛車輛,再建立另一可傳輸範圍,且該另一可傳輸範圍亦可跟隨該另一行駛車輛的移動而隨時更新。以此類推,藉由單一個可傳輸範圍來建立另一個可傳輸範圍,以便相對擴增通訊傳輸所能涵蓋的範圍,且各該可傳輸範圍皆可跟隨其自身所對應之行駛車輛的移動來隨時更新,有效達到在動態環境下通訊傳輸的目的。In view of this, the vehicle wireless network [Vehicle Ad hoc Network] technology is gradually developed to overcome the above shortcomings, mainly for users to communicate in a dynamic environment. For example, it can be roughly divided into the following two types: The first conventional wireless wireless network technology for vehicles: proposed by Abdelmalik Bachir and other scholars in 2003, mainly by defining a transmittable range by means of a driving vehicle. The transmittable range is updated at any time following the movement of the traveling vehicle; and, in conjunction with another traveling vehicle whose search position is within the transmittable range and farthest from the traveling vehicle, another transmittable range is established, and the The other transmittable range can also be updated at any time following the movement of the other traveling vehicle. By analogy, another transmittable range is established by a single transmittable range to relatively amplify the range covered by the communication transmission, and each of the transmittable ranges can follow the movement of the traveling vehicle corresponding to itself. Update at any time to effectively achieve the purpose of communication transmission in a dynamic environment.

然而,上述第一種習知車用隨意無線網路技術建立各該可傳輸範圍之行駛車輛,必須保持同步移動方可維持各該可傳輸範圍之間的連結,但在實際使用時,考量到各該行駛車輛快速的移動及多變的網路拓撲等因素,並無法確保各該行駛車輛在行進過程中維持相同的車速,故一旦任意二建立可傳輸範圍之行駛車輛之間具有速差時,則將逐漸脫離對方之可傳輸範圍,故仍容易導致傳輸中斷或延遲現象的發生。However, the above-mentioned first conventional vehicle wireless wireless network technology establishes each of the transmittable vehicles of the transmittable range, and must maintain the synchronous mobile to maintain the connection between the transmittable ranges, but in actual use, it is considered The rapid movement of the traveling vehicle and the variable network topology and the like cannot ensure that each of the traveling vehicles maintains the same speed during the traveling, so that if there is a speed difference between the driving vehicles of any of the two transmission ranges , will gradually get rid of the transmission range of the other party, so it is still easy to cause transmission interruption or delay phenomenon.

第二種習知車用隨意無線網路技術:係由Maria Kihl等學者於2008年提,主要係藉由車輛路由協定並配合使用洪流[Flooding]方式來控制封包在網路中傳輸,以透過單播[Unicast]方式來提升通訊傳輸的效率及可靠性。The second type of random wireless network technology used in the car: in 2008, by Maria Kihl and other scholars, mainly through the vehicle routing agreement and using the flooding [Flooding] method to control the transmission of packets in the network, through Unicast [unicast] mode to improve the efficiency and reliability of communication transmission.

然而,上述第二種習知車用隨意無線網路技術並未考慮到網路拓撲的快速變化,故仍無法提供使用者穩定的傳輸品質。However, the above-mentioned second conventional wireless wireless network technology does not take into account the rapid change of the network topology, and thus cannot provide a stable transmission quality for the user.

綜上所述,目前針對動態環境下進行通訊傳輸的方法,大致仍受限於無線網路的傳輸距離、車輛的快速移動及多變的網路拓撲等諸多因素影響,故仍有進一步改善之必要。In summary, the current method for communication transmission in a dynamic environment is still limited by the transmission distance of the wireless network, the rapid movement of the vehicle, and the changing network topology. Therefore, there is still further improvement. necessary.

本發明目的乃改良上述缺點,以提供一種可於車隊行進間進行通訊傳輸的動態車輛之通訊傳輸控制方法。SUMMARY OF THE INVENTION It is an object of the present invention to improve the above disadvantages to provide a communication transmission control method for a dynamic vehicle that can communicate between fleets.

本發明另一目的係提供一種具有穩定傳輸品質的動態車輛之通訊傳輸控制方法。Another object of the present invention is to provide a communication transmission control method for a dynamic vehicle having stable transmission quality.

本發明又一目的係提供一種可避免傳輸通訊的中斷及延遲現象的發生之動態車輛之通訊傳輸控制方法。Another object of the present invention is to provide a communication transmission control method for a dynamic vehicle that can avoid the occurrence of interruption and delay of transmission communication.

根據本發明之動態車輛之通訊傳輸控制方法,係包含以下步驟:步驟(1),藉由一領導車輛建立一動態地域性區域;步驟(2),藉由該領導車輛將一路由搜尋封包傳送給位在該領導車輛之一可傳輸範圍內的車輛;步驟(3),藉由第一次接收該路由搜尋封包的車輛判斷是否位在該動態地域性區域內,若判斷為「是」,該車輛係成為一成員車輛,並進行步驟(4),若判斷為「否」,該車輛係進行步驟(6);步驟(4),藉由該成員車輛計算一延遲時間,並在等待該延遲時間後將所接收之路由搜尋封包傳送給位在該成員車輛之可傳輸範圍內的車輛,且此時第一個傳送該路由搜尋封包之成員車輛係成為一中繼車輛,並接著進行步驟(5);步驟(5),藉由接收該成員車輛所傳送之路由搜尋封包的車輛,判斷是否為第一次接收,若判斷為「是」,係重新進行步驟(3),若判斷為「否」,則進行步驟(7);步驟(6),判斷是否位在該動態地域性區域朝行駛方向的後方,若判斷為「是」,係進行步驟(7),若判斷為「否」,該車輛係不允許加入車隊,並結束;及步驟(7),藉由該中繼車輛定期收集其自身之可傳輸範圍內之成員車輛的行駛資訊,並傳送給該領導車輛加以管控。The communication transmission control method for a dynamic vehicle according to the present invention comprises the steps of: (1) establishing a dynamic regional area by a leading vehicle; and (2) transmitting a route search packet by the leading vehicle. Giving a vehicle within a transmission range of one of the leading vehicles; and step (3), determining whether the vehicle is in the dynamic regional area by the vehicle that first receives the route search packet, and if the determination is “Yes”, The vehicle is a member vehicle, and step (4) is performed. If the determination is no, the vehicle performs step (6); step (4), the member vehicle calculates a delay time, and waits for the After the delay time, the received route search packet is transmitted to the vehicle within the transmit range of the member vehicle, and at this time, the first member vehicle transmitting the route search packet becomes a relay vehicle, and then steps are performed. (5); Step (5), by receiving the route search packet transmitted by the member vehicle, determining whether it is the first reception, and if the determination is "Yes", proceeding to step (3) again, if it is determined to be "no Then, step (7); step (6) is performed to determine whether it is located behind the driving direction in the dynamic regional area. If the determination is YES, step (7) is performed, and if the determination is "NO", The vehicle is not allowed to join the fleet and ends; and in step (7), the relay vehicle periodically collects driving information of the member vehicles within its own transmit range and transmits it to the leading vehicle for control.

為讓本發明之上述及其他目的、特徵及優點能更明顯易懂,下文特舉本發明之較佳實施例,並配合所附圖式,作詳細說明:請參照第1圖所示,本發明較佳實施例之動態車輛之通訊傳輸控制方法主要係應用於相同行駛方向之數個車輛[以下簡稱車隊],且本實施例主要係利用專用短距離通訊[Dedicated Short Range Communication]協定來達成各該車輛之間的通訊傳輸,當任意二車輛分別位在對方之一〝可傳輸範圍〞[廣播範圍]內時,即可與對方互相通訊傳輸。更詳言之,本發明係預先於該車隊中架構一領導車輛1[Leading Vehicle]及數個成員車輛2[Member Vehicle],以便藉由該領導車輛1與該數個成員車輛2共同執行本發明相關步驟。該領導車輛1係為該車隊中位在行駛方向最前方的車輛,其具有一動態地域性群播模組11[Dynamic Geocast Module]、一車隊建立模組12[Fleet Initialization Module]及一車隊成員監控模組13[Fleet Member Monitor Module]。其中:The above and other objects, features and advantages of the present invention will become more <RTIgt; The communication transmission control method for a dynamic vehicle according to a preferred embodiment of the present invention is mainly applied to a plurality of vehicles (hereinafter referred to as a fleet) in the same traveling direction, and the present embodiment mainly uses a dedicated short-range communication [Dedicated Short Range Communication] agreement to achieve The communication transmission between the vehicles can be communicated with each other when any two vehicles are located in the transmission range 广播 [broadcast range] of one of the other parties. More specifically, the present invention pre-structures a leading vehicle 1 [Mead Vehicle] and a member vehicle 2 [Member Vehicle] in the fleet to perform the present by the leading vehicle 1 and the plurality of member vehicles 2 Invention related steps. The leading vehicle 1 is a vehicle with the middle of the team in the forefront of the driving direction, and has a dynamic regional multicast module 11 [Dynamic Geocast Module], a fleet building module 12 [Fleet Initialization Module] and a team member. Monitoring module 13 [Fleet Member Monitor Module]. among them:

該動態地域性群播模組11係用以於車用無線隨意網路環境中定義一〝動態地域性區域〞,以便限制該車隊組成的範圍,且該〝動態地域性區域〞係可跟隨該領導車輛1的行駛方向同步移動,進而可即時更新該〝動態地域性區域〞所能涵蓋的範圍。The dynamic regional multicast module 11 is configured to define a dynamic regional region in a wireless wireless network environment for the vehicle to limit the scope of the fleet, and the dynamic regional region can follow the The driving direction of the leading vehicle 1 is synchronously moved, so that the range that can be covered by the dynamic regional area can be updated in real time.

該車隊建立模組12係連接該動態地域性群播模組11,用以執行車隊成員之建立初始化作業程序,以搜尋位在該〝動態地域性區域〞內之車輛成為該成員車輛2。The fleet building module 12 is connected to the dynamic regional multicast module 11 for executing a setup operation procedure of the team members to search for the vehicle located in the dynamic regional area to become the member vehicle 2.

該車隊成員監控模組13係連接該車隊建立模組12,用以週期性的擷取各該成員車輛2之〝行駛資訊〞,例如:行駛速度、方向、所在位置等,以供該領導車輛1監控車隊成員。The team member monitoring module 13 is connected to the fleet building module 12 for periodically capturing the driving information of each member vehicle 2, such as: driving speed, direction, location, etc., for the leading vehicle. 1 monitor team members.

請再參照第1圖所示,該數個成員車輛2係為該車隊中位於該領導車輛1之行駛方向後方的車輛,各該成員車輛2皆設有一行駛資訊代理人21[Travel Information Agent]、一後繼者監控模組22[Successor Monitor Module]及一車輛預測模組23[Vehicle Prediction Module]。其中:Referring to FIG. 1 again, the plurality of member vehicles 2 are vehicles in the fleet behind the direction of travel of the leading vehicle 1, and each member vehicle 2 is provided with a travel information agent 21 [Travel Information Agent] , a successor monitoring module 22 [Successor Monitor Module] and a vehicle prediction module 23 [Vehicle Prediction Module]. among them:

該行駛資訊代理人21係用以即時分析GPS接收器接收到的數據,以便各該成員車輛2能夠獲得其自身之〝行駛資訊〞。The driving information agent 21 is used to analyze the data received by the GPS receiver in real time, so that each member vehicle 2 can obtain its own driving information.

該後繼者監控模組22係連接該行駛資訊代理人21,並以無線方式耦接該車隊成員監控模組13,用以定期收集該行駛資訊代理人21所分析獲得之〝行駛資訊〞,以供該車隊成員監控模組13週期性的擷取,並可做為後續判斷車隊成員離開車隊或新成員加入車隊之參考依據。The successor monitoring module 22 is connected to the driving information agent 21 and wirelessly coupled to the team member monitoring module 13 for periodically collecting the driving information analyzed by the driving information agent 21 to For the team member monitoring module 13 to periodically capture, and can be used as a reference for subsequent team members to leave the team or new members to join the team.

該車輛預測模組23係連接該後繼者監控模組22,用以依據該後繼者監控模組22定期收集之〝行駛資訊〞,以供各該成員車輛2判斷其自身脫離對方之〝可傳輸範圍〞所需之時間。The vehicle prediction module 23 is connected to the successor monitoring module 22 for transmitting the information of the driving information periodically collected by the successor monitoring module 22 for each member vehicle 2 to determine that it is free from the other party. The range is the time required.

請參照第2圖所示,本發明較佳實施例之動態車輛之通訊傳輸控制方法係包含一車隊範圍建立步驟S1、一車隊建立初始化步驟S2、一成員建立判斷步驟S3、一封包傳送步驟S4、一成員擴充判斷步驟S5、一終止判斷步驟S6及一車隊管理步驟S7。其中:Referring to FIG. 2, the communication transmission control method for a dynamic vehicle according to a preferred embodiment of the present invention includes a fleet scope establishing step S1, a fleet establishment initialization step S2, a member establishment determining step S3, and a packet transmission step S4. A member expansion decision step S5, a termination determination step S6, and a fleet management step S7. among them:

請參照第1、2及3圖所示,本發明較佳實施例之動態車輛之通訊傳輸控制方法之車隊範圍建立步驟S1係藉由該領導車輛1之動態地域性群播模組11建立該〝動態地域性區域〞。更詳言之,本發明係預先在欲構成車隊之數個車輛中選擇位在行駛方向最前方之車輛做為該領導車輛1後,再藉由該領導車輛1之動態地域性群播模組11利用GPS接收器接收衛星定位座標,以便該領導車輛1得知自身之實際所在位置;接著,以該領導車輛1行駛方向後方之一〝動態地域性群播距離R〞為長,以相同行駛方向之道路範圍為寬所構成之矩形區域,來建立該〝動態地域性區域〞。其中,該〝動態地域性群播距離R〞係可依該領導車輛1所欲建立之車隊範圍自行定義,本實施例之〝動態地域性群播距離R〞係選擇為1 km,故該〝動態地域性區域〞即為該領導車輛1行駛方向後方1 km以內所涵蓋之矩形區域。Referring to Figures 1, 2 and 3, the fleet scope establishing step S1 of the dynamic vehicle communication transmission control method according to the preferred embodiment of the present invention is established by the dynamic regional multicast module 11 of the leading vehicle 1. 〝 Dynamic regional areas 〞. More specifically, the present invention preliminarily selects a vehicle positioned at the forefront of the driving direction as the leading vehicle 1 among a plurality of vehicles to form a fleet, and then uses the dynamic regional multicast module of the leading vehicle 1 11 receiving the satellite positioning coordinates by using the GPS receiver, so that the leading vehicle 1 knows the actual location of the vehicle; then, the dynamic regional grouping distance R〞 is one of the driving directions of the leading vehicle 1 and is the same driving. The direction of the road is a rectangular area composed of a wide area to establish the dynamic regional area. The dynamic regional grouping distance R〞 can be defined according to the range of the fleet to be established by the leading vehicle 1. In this embodiment, the dynamic regional grouping distance R is selected to be 1 km, so the The dynamic regional area is the rectangular area covered by the leading vehicle 1 within 1 km behind the direction of travel.

請參照第1、2及4圖所示,本發明較佳實施例之動態車輛之通訊傳輸控制方法之車隊建立初始化步驟S2係藉由該領導車輛1執行車隊成員之建立初始化作業程序,將一〝路由搜尋封包[Route discovery packet]〞傳送給位在該領導車輛1之〝可傳輸範圍〞內的車輛。更詳言之,本實施例之〝可傳輸範圍〞係以各該車輛周圍100 m以內之圓形區域加以說明,且該〝可傳輸範圍〞較佳係涵蓋該〝動態地域性區域〞在垂直行駛方向的長度[亦即矩形區域的寬],故該車隊建立初始化步驟S2係藉由該領導車輛1之車隊建立模組12將該〝路由搜尋封包〞傳送給位在該領導車輛1周圍100 m以內之車輛。其中,該〝路由搜尋封包〞係包含有該〝動態地域性區域〞目前所涵蓋的範圍,以便做為後續各該車輛判斷自身是否能夠成為該成員車輛2之參考依據。為方便後續說明,本實施例以下所述該領導車輛1之〝可傳輸範圍〞係為一〝領導可傳輸範圍A〞。Referring to Figures 1, 2 and 4, the fleet establishment initialization step S2 of the dynamic vehicle communication transmission control method according to the preferred embodiment of the present invention is performed by the leader vehicle 1 performing the initialization operation procedure of the team members. The route discovery packet is transmitted to the vehicle within the transmission range of the leading vehicle 1. More specifically, the transmission range of the present embodiment is described by a circular area within 100 m of each vehicle, and the transmission range 〞 preferably covers the dynamic regional area. The length of the direction of travel [that is, the width of the rectangular area], so the team establishment initialization step S2 transmits the 〝 route search packet 给 to the position around the leader vehicle 1 by the fleet building module 12 of the leader vehicle 1 Vehicles within m. The routing search packet includes the range currently covered by the dynamic regional area, so as to determine whether the vehicle can become the reference basis of the member vehicle 2 as the subsequent vehicles. For convenience of the following description, the transmission range of the leading vehicle 1 described below in this embodiment is a leader transmission range A〞.

本發明較佳實施例之動態車輛之通訊傳輸控制方法之成員建立判斷步驟S3係藉由第一次接收該〝路由搜尋封包〞之車輛,判斷自身是否位在該〝動態地域性區域〞內,若判斷為「是」,該車輛即可成為該成員車輛2,並接著進行該封包傳送步驟S4;若判斷為「否」,該車輛則進行該終止判斷步驟S6。其中,第一次接收該〝路由搜尋封包〞之車輛,係為除了該領導車輛1以外之車輛,其原因將於後續進一步說明。更詳言之,此時本實施例係藉由該〝領導可傳輸範圍A〞內的車輛先接收該領導車輛1所傳送之〝路由搜尋封包〞,並判斷自身是否位在該〝動態地域性區域〞內;由於本實施例之〝動態地域性區域〞係為該領導車輛1行駛方向後方1 km以內所涵蓋之矩形區域,而該〝領導可傳輸範圍A〞則包含該領導車輛1周圍100 m以內的所有車輛;故此時在該成員建立判斷步驟S3中判斷為「是」的情形下,即表示該車輛係位在該領導車輛1行駛方向的後方;而此時在判斷為「否」的情形下,則表示該車輛係位在該領導車輛1行駛方向的前方。The member establishment determining step S3 of the dynamic vehicle communication transmission control method according to the preferred embodiment of the present invention determines whether the user is located in the dynamic regional area by first receiving the vehicle of the routing search packet. If the determination is YES, the vehicle can become the member vehicle 2, and then the packet transmission step S4 is performed; if the determination is "NO", the vehicle performs the termination determination step S6. The reason for receiving the vehicle for the first route search packet is the vehicle other than the leader vehicle 1, and the reason will be further described later. More specifically, at this time, the present embodiment first receives the routing search packet transmitted by the leading vehicle 1 by the vehicle in the transmission range A〞, and determines whether it is located in the dynamic regionality. In the area ;; since the dynamic regional area of the embodiment is a rectangular area covered within 1 km behind the direction of travel of the leading vehicle 1, the 〝 leader transmittable range A 包含 includes 100 around the leading vehicle 1 In the case where the determination is made to be "YES" in the member establishment determining step S3, the vehicle is in the rear of the traveling direction of the leading vehicle 1. At this time, the determination is "NO". In the case of the vehicle, it is indicated that the vehicle is in front of the traveling direction of the leading vehicle 1.

請參照第1、2及5圖所示,本發明較佳實施例之動態車輛之通訊傳輸控制方法之封包傳送步驟S4係藉由該成員車輛2計算一〝延遲時間[Defer time]〞,並在等待該〝延遲時間〞後將所接收之〝路由搜尋封包〞傳送給位在自身之〝可傳輸範圍〞內的車輛,並接著進行該成員擴充判斷步驟S6;其中,此時第一個傳送該〝路由搜尋封包〞之成員車輛2係成為一〝中繼車輛〞。更詳言之,此時本實施例係藉由該〝領導可傳輸範圍A〞內之成員車輛2先進行該封包傳送步驟S4,該成員車輛2之行駛資訊代理人21係透過GPS接收器,分析獲得自身之〝行駛資訊〞後,利用如以下所述公式(1)計算自身之〝延遲時間〞:Referring to Figures 1, 2 and 5, the packet transmission step S4 of the communication transmission control method for a dynamic vehicle according to a preferred embodiment of the present invention calculates a delay time [Defer time] by the member vehicle 2, and Waiting for the delay time, transmitting the received routing search packet to the vehicle within its own transmission range, and then performing the member expansion determination step S6; wherein, the first transmission at this time The member vehicle 2 of the routing search packet is a relay vehicle. More specifically, at this time, the present embodiment transmits the packet transmission step S4 by the member vehicle 2 in the transmission range A of the leader, and the travel information agent 21 of the member vehicle 2 passes through the GPS receiver. After analyzing and obtaining the driving information of the user, calculate the delay time of the user using the formula (1) as follows:

其中,T為該成員車輛2的〝延遲時間〞,Vm 為該成員車輛2的車速,V1 為傳送該〝路由搜尋封包〞之車輛的車速[此時係表示該領導車輛1的車速],D1m 為該兩車輛之間的距離,A為圓形區域之〝可傳輸範圍〞的半徑。藉此,利用上述公式(1)來計算該成員車輛2之〝延遲時間〞,係可同時於該〝可傳輸範圍〞內建立該〝中繼車輛〞,而此時本實施例在第一次進行該封包傳送步驟S4時,係先於該〝領導可傳輸範圍A〞內建立一〝第一中繼車輛〞,以便藉由該〝第一中繼車輛〞來管理其自身所建立之一〝第一可傳輸範圍A1〞內的成員車輛2;其中,該〝第一中繼車輛〞所管理之成員車輛2,並不包含同時位在該〝領導可傳輸範圍A〞內的成員車輛2。Where T is the 〝 delay time 该 of the member vehicle 2, V m is the vehicle speed of the member vehicle 2, and V 1 is the vehicle speed of the vehicle transmitting the 〝 route search packet 此时 [this time indicates the speed of the leading vehicle 1] D 1m is the distance between the two vehicles, and A is the radius of the transmission range 〞 of the circular area. Thereby, using the above formula (1) to calculate the delay time 该 of the member vehicle 2, the 〝 relay vehicle 建立 can be established simultaneously in the 〝 transmittable range 而, and the present embodiment is the first time When the packet transmission step S4 is performed, a first relay vehicle 建立 is established in the 〝 leader transmittable range A 〞 to manage one of the 中继 first relay vehicles 管理 by the 中继 first relay vehicle 〝 The member vehicle 2 within the first transmittable range A1〞; wherein the member vehicle 2 managed by the first relay vehicle 并不 does not include the member vehicle 2 that is simultaneously located within the 〝 leader transmittable range A〞.

本發明較佳實施例之動態車輛之通訊傳輸控制方法之成員擴充判斷步驟S5係藉由接收該成員車輛2所傳送之〝路由搜尋封包〞的車輛,判斷自身是否為第一次接收,若判斷為「是」,係重新進行該成員建立判斷步驟S3;若判斷為「否」,則進行該車隊管理步驟S7。更詳言之,由於接收該成員車輛2所傳送之〝路由搜尋封包〞的車輛,係包含此輛成員車輛2之〝可傳輸範圍〞內的所有車輛,故此時在該成員擴充判斷步驟S5中判斷為「是」的情形下,即表示該車輛係位在此輛成員車輛2行駛方向的後方;而此時在判斷為「否」的情形下,則表示該車輛係位在此輛成員車輛2行駛方向的前方。故本發明之成員擴充判斷步驟S5主要係確保能夠於該領導車輛1行駛方向的後方陸續建立車隊成員。The member expansion determination step S5 of the communication transmission control method for a dynamic vehicle according to the preferred embodiment of the present invention determines whether the vehicle is the first reception by receiving the vehicle that is transmitted by the member vehicle 2 and searching for the packet. If yes, the member establishment determination step S3 is re-executed; if the determination is "NO", the fleet management step S7 is performed. More specifically, since the vehicle that receives the route search packet transmitted by the member vehicle 2 includes all the vehicles within the transmission range of the member vehicle 2, in this member expansion determination step S5 If the determination is YES, it means that the vehicle is behind the traveling direction of the member vehicle 2; and if the determination is "NO", the vehicle is in the member vehicle. 2 The front of the direction of travel. Therefore, the member expansion judging step S5 of the present invention mainly ensures that the team members can be successively established in the rear of the driving direction of the leading vehicle 1.

其中,在進行第一次的成員擴充判斷步驟S5時,該成員車輛2之〝可傳輸範圍〞係包含有該領導車輛1,故該領導車輛1亦會成為第一次接收該〝路由搜尋封包〞之車輛;由於本發明主要係以該領導車輛1行駛方向後方的車輛做為車隊成員,故該成員擴充判斷步驟S5判斷是否為第一次接收該〝路由搜尋封包〞之車輛係不包含有該領導車輛1。Wherein, in the first member expansion determination step S5, the transmission range of the member vehicle 2 includes the leader vehicle 1, so the leader vehicle 1 will also receive the first route search packet for the first time. Since the present invention mainly uses the vehicle behind the driving direction of the leading vehicle 1 as a member of the team, the member expansion determining step S5 determines whether the vehicle that received the routing search packet for the first time does not include The leading vehicle 1.

此外,在最後一次進行該成員建立判斷步驟S3,且在判斷為「否」的情形下,即表示接收該〝路由搜尋封包〞之車輛已位在該〝動態地域性區域〞行駛方向的後方;其中,不論接收該〝路由搜尋封包〞之車輛係位於該〝動態地域性區域〞行駛方向的前方或後方,該車輛皆選擇將該〝路由搜尋封包〞加以丟棄而不進行轉送的動作,即表示該車輛無法成為車隊成員。In addition, the member establishment determination step S3 is performed last time, and if the determination is "NO", that is, the vehicle receiving the routing search packet is located behind the driving direction of the dynamic regional area; Wherein, regardless of whether the vehicle receiving the routing search packet is located in front of or behind the driving direction of the dynamic regional area, the vehicle selects the routing search packet to be discarded without forwarding, that is, The vehicle cannot be a member of the team.

請再參照第1、2及5圖所示,本發明較佳實施例之動態車輛之通訊傳輸控制方法之終止判斷步驟S6係藉由第一次接收該〝路由搜尋封包〞之車輛,進一步判斷自身是否位在該〝動態地域性區域〞朝行駛方向的後方,若判斷為「是」,即完成車隊的建立,並接著進行該車隊管理步驟S7;若判斷為「否」,則代表該車輛無法加入車隊成為該成員車輛2,並結束車隊的建立。更詳言之,在反覆執行該成員建立判斷步驟S3、封包傳送步驟S4及成員擴充步驟S5後,該領導車輛1行駛方向後方之數個車輛已陸續成為該成員車輛2,且每進行一次該封包傳送步驟S4,即可建立一輛〝中繼車輛〞;藉此,位在此〝可傳輸範圍〞內之成員車輛2,即可間接透過該些〝中繼車輛〞與位在另一〝可傳輸範圍〞內之成員車輛2互相傳輸通訊,且該〝中繼車輛〞係可用以管理其自身之〝可傳輸範圍〞內之成員車輛2。因此,在最後一次進行該封包傳送步驟S4時,即完成建立該車隊中最後一輛〝中繼車輛〞。Referring to FIGS. 1, 2 and 5 again, the termination determining step S6 of the communication transmission control method for the dynamic vehicle according to the preferred embodiment of the present invention is further determined by the first time receiving the vehicle of the routing search packet. Whether it is located behind the driving direction of the dynamic regional area, if it is judged as "Yes", the establishment of the fleet is completed, and then the fleet management step S7 is performed; if the determination is "No", the vehicle is represented Unable to join the team to become the member vehicle 2 and end the establishment of the team. More specifically, after the member establishment determining step S3, the packet transmission step S4, and the member expansion step S5 are repeatedly performed, the plurality of vehicles behind the driving direction of the leading vehicle 1 have successively become the member vehicle 2, and each time the member 2 is performed The packet transmission step S4 can establish a 〝 relay vehicle 〞; thereby, the member vehicles 2 located within the transmission range 即可 can indirectly pass through the 〝 relay vehicles and lie in another 〝 The member vehicles 2 within the transmittable range 2 communicate with each other, and the pick-up vehicle can be used to manage the member vehicles 2 within its own transmit range. Therefore, when the packet transmission step S4 is performed for the last time, the establishment of the last 〝 relay vehicle in the fleet is completed.

本發明較佳實施例之動態車輛之通訊傳輸控制方法之車隊管理步驟S7係藉由該〝中繼車輛〞定期收集自身之〝可傳輸範圍〞內之成員車輛2的〝行駛資訊〞,並傳送給該領導車輛1加以管控。更詳言之,該終止判斷步驟S6係已完成車隊的建立,而該車隊管理步驟S7主要係為了有效管控車隊中通訊傳輸的穩定性,以便提供較佳之傳輸品質,並可避免通訊傳輸的中斷或延遲現象的發生。因此,透過該成員車輛2之後繼者監控模組22定期收集其自身之行駛資訊代理人21所分析獲得之〝行駛資訊〞後,經由其自身所對應之〝中繼車輛〞直接或間接供該領導車輛1之車隊成員監控模組13週期性的擷取,以供該領導車輛1得知各該成員車輛2之〝行駛資訊〞。The fleet management step S7 of the communication transmission control method for a dynamic vehicle according to the preferred embodiment of the present invention periodically collects the driving information of the member vehicle 2 within the transmission range of the vehicle by the relay vehicle, and transmits The leading vehicle 1 is controlled. More specifically, the termination determination step S6 has completed the establishment of the fleet, and the fleet management step S7 is mainly for effectively controlling the stability of the communication transmission in the fleet, so as to provide better transmission quality and avoid interruption of communication transmission. Or delays occur. Therefore, after the member vehicle 2 subsequent monitor monitoring module 22 periodically collects the travel information analyzed by the travel information agent 21 of its own, the relay vehicle 对应 is directly or indirectly supplied via its own corresponding relay vehicle The team member monitoring module 13 of the leading vehicle 1 periodically captures the driving vehicle 1 for the driving information of each of the member vehicles 2.

此外,本發明之車隊管理步驟S7另包含一預測步驟,該預測步驟主要係藉由各該〝中繼車輛〞之車輛預測模組23執行相關程序。更詳言之,該預測步驟係進一步藉由各該〝中繼車輛〞分別計算一〝脫離時間[Prediction time]〞,並依據各該〝中繼車輛〞自身之〝延遲時間〞來加以判斷,以便得知各該〝中繼車輛〞脫離前一輛〝中繼車輛〞[或該領導車輛1]之〝可傳輸範圍〞所需花費的時間,進而可預先在該〝脫離時間〞之前,藉由該前一輛〝中繼車輛〞[或該領導車輛1]重新找尋另一〝中繼車輛〞來替代。舉例而言,本實施例之各該〝中繼車輛〞之車輛預測模組23係利用以下所述公式(2)計算其自身之〝脫離時間〞:In addition, the fleet management step S7 of the present invention further includes a prediction step of mainly performing a related program by the vehicle prediction module 23 of each of the relay vehicles. More specifically, the predicting step further calculates a detachment time by each of the 〝 relay vehicles 并, and judges according to the delay time 各 of each of the 〝 relay vehicles , themselves, In order to know the time required for each of the relay vehicles to detach from the transmission range of the preceding relay vehicle 或 [or the leading vehicle 1], and then borrow in advance before the 〝 departure time 〞 It is replaced by the former 〝 relay vehicle 〞 [or the leading vehicle 1] looking for another relay vehicle 〞. For example, the vehicle prediction module 23 of each of the 〝 relay vehicles of the present embodiment calculates its own detachment time 利用 using the following formula (2):

其中,Pt 為各該〝中繼車輛〞的〝脫離時間〞,A為圓形區域之〝可傳輸範圍〞的半徑,Vr 為該〝中繼車輛〞的車速,Vn 為前一輛〝中繼車輛〞[或該領導車輛1]的車速,Dnr 為該二車輛之間的距離,T為各該〝中繼車輛〞的〝延遲時間〞。當各該〝中繼車輛〞之車輛預測模組23判斷其自身之〝脫離時間〞符合上述公式(2)時,該前一輛〝中繼車輛〞[或該領導車輛1]則找尋自身之〝可傳輸範圍〞內,另一〝延遲時間〞最小且不符合上述公式(2)之成員車輛2當做另一〝中繼車輛〞,且該領導車輛1係同步更新各該〝中繼車輛〞的名單。藉此,有效解決動態環境下車輛的快速移動所造成網路中斷的情形發生,以確保通訊傳輸的品質,並可準確控管位在該〝動態地域性區域〞內各該成員車輛2。Where P t is the 〝 departure time 各 of each of the 〝 relay vehicles 〞, A is the radius of the transmission range 〞 of the circular area, V r is the speed of the 〝 relay vehicle ,, V n is the previous one车 Relay vehicle 〞 [or the leading vehicle 1] vehicle speed, D nr is the distance between the two vehicles, and T is the 〝 delay time 各 of each of the 〝 relay vehicles 〞. When the vehicle prediction module 23 of each of the 〝 relay vehicles determines that its own detachment time 〞 conforms to the above formula (2), the former 〝 relay vehicle 〞 [or the leading vehicle 1] searches for itself成员 The transmission range 〞, another member vehicle 2 having the smallest delay time 且 and not meeting the above formula (2) is regarded as another relay vehicle 〞, and the leading vehicle 1 is synchronized to update each of the 〝 relay vehicles 〞 List of. Thereby, the network interruption caused by the rapid movement of the vehicle in the dynamic environment is effectively solved to ensure the quality of the communication transmission, and the member vehicles 2 in the dynamic regional area can be accurately controlled.

此外,請參照第1、2及6圖所示,本發明較佳實施例之動態車輛之通訊傳輸控制方法另包含一新成員建立步驟,該新成員建立步驟係在該終止判斷步驟S6完成車隊的建立後才進行。更詳言之,該新成員建立步驟係包含一傳輸請求步驟S81、一封包傳送步驟S82及一新成員建立判斷步驟S83。其中:In addition, referring to Figures 1, 2 and 6, the communication transmission control method for a dynamic vehicle according to a preferred embodiment of the present invention further includes a new member establishing step, the new member establishing step is completed at the termination determining step S6. Only after the establishment of the establishment. More specifically, the new member establishment step includes a transmission request step S81, a packet transmission step S82, and a new member establishment determination step S83. among them:

該傳輸請求步驟S81係藉由欲加入車隊之車輛[以下簡稱新車輛]傳送一〝加入請求封包〞給最接近自身之〝中繼車輛〞。更詳言之,最接近該新車輛之〝中繼車輛〞必須要位在該新車輛之〝可傳輸範圍〞內,方可接收該新車輛所傳送之〝加入請求封包〞。The transmission request step S81 transmits a join request packet to the nearest relay vehicle by the vehicle to be added to the fleet [hereinafter referred to as the new vehicle]. More specifically, the relay vehicle closest to the new vehicle must be within the transmission range of the new vehicle to receive the incoming request packet transmitted by the new vehicle.

該封包傳送步驟S82藉由接收該〝加入請求封包〞之〝中繼車輛〞傳送該〝路由搜尋封包〞給其自身之〝可傳輸範圍〞內的車輛,以供該新車輛接收該〝路由搜尋封包〞。更詳言之,由於此輛〝中繼車輛〞係已位於該新車輛之〝可傳輸範圍〞內,故該新車輛亦同樣位於此輛〝中繼車輛〞之〝可傳輸範圍內〞,使該新車輛得以順利接收該〝路由搜尋封包〞。The packet transmission step S82 transmits the 〝 route search packet to the vehicle within its own transmission range 藉 by receiving the 〝 请求 请求 请求 请求 〝 , , , , , , , , , , 〝 〝 〝 〝 〝 〝 〝 〝 〝 〝 The package is 〞. In more detail, since the vehicle is in the transmission range of the new vehicle, the new vehicle is also located within the transmission range of the vehicle. The new vehicle is able to successfully receive the routing search packet.

該新成員建立判斷步驟S83係藉由該新車輛判斷其自身是否位在該〝動態地域性區域〞所涵蓋的範圍內,若判斷為「是」,該新車輛係允許加入車隊成為該成員車輛2;若判斷為「否」,該新車輛則不允許加入成為車隊成員,並結束。The new member establishment determining step S83 determines whether the new vehicle is within the range covered by the dynamic regional area by the new vehicle. If the determination is yes, the new vehicle is allowed to join the team to become the member vehicle. 2; If the judgment is "No", the new vehicle is not allowed to join the team member and ends.

本發明之動態車輛之通訊傳輸控制方法,可藉由該領導車輛預先建立該動態地域性區域,以便在該動態地域性區域陸續建立車隊成員,同時藉由搜尋適合之車隊成員做為中繼車輛,如此,除了可使互相位在對方之可傳輸範圍內的車隊成員互相通訊,更可使不位在對方之可傳輸範圍內的車隊成員透過中繼車輛互相通訊,且該動態地域性區域係可跟隨該領導車輛的移動而即時更新,使得本發明可有效達到在車隊行進間互相通訊傳輸的功效。The communication transmission control method of the dynamic vehicle of the present invention can pre-establish the dynamic regional area by the leading vehicle, so as to successively establish a team member in the dynamic regional area, and at the same time, by searching for suitable team members as a relay vehicle In this way, in addition to allowing the members of the team to communicate with each other within the transmission range of the other party, the members of the team that are not within the transmission range of the other party can communicate with each other through the relay vehicle, and the dynamic regional area is The present invention can be updated in real time following the movement of the leading vehicle, so that the present invention can effectively achieve the effect of communicating with each other during the travel of the fleet.

本發明之動態車輛之通訊傳輸控制方法,可藉由在每執行一次該封包傳送步驟,即以第一個傳送該路由搜尋封包之成員車輛做為該中繼車輛,如此,除了可使不位在對方之可傳輸範圍內的車隊成員能夠快速的互相通訊,且由於各該中繼車輛之間的速差較小,因而不易互相脫離對方之可傳輸範圍,使各該可傳輸範圍之間得以保持較佳的連結狀態,使得本發明可使各該成員車輛之間有效達到穩定傳輸品質的功效。The communication transmission control method of the dynamic vehicle of the present invention can be used as the relay vehicle by performing the packet transmission step every time, that is, the member vehicle that transmits the route search packet for the first time, so that Team members within the range of the other party's transmission can communicate with each other quickly, and because the speed difference between the relay vehicles is small, it is not easy to get rid of each other's transmission range, so that each of the transmission ranges can be Maintaining a better connection state enables the present invention to effectively achieve the effect of stable transmission quality between each member vehicle.

本發明之動態車輛之通訊傳輸控制方法,可藉由各該中繼車輛計算其自身之脫離時間,來判斷任意二中繼車輛脫離對方之可傳輸範圍的時間,以便在任意二可傳輸範圍失去連結之前,預先找尋另一中繼車輛來替代,如此,可確保該動態地域性區域內通訊傳輸的不間斷,並可使各該成員車輛之間具有較可靠之傳輸品質,有效達到避免傳輸中斷或延遲現象發生的功效。The communication transmission control method of the dynamic vehicle of the present invention can determine the time when any two relay vehicles are separated from the transmission range of the other party by calculating the departure time of each of the relay vehicles, so as to be lost in any two transmittable ranges. Before the connection, another relay vehicle is searched for in advance, so as to ensure uninterrupted communication transmission in the dynamic regional area, and the transmission quality of each member vehicle can be ensured, thereby effectively avoiding transmission interruption. Or the effect of delays.

雖然本發明已利用上述較佳實施例揭示,然其並非用以限定本發明,任何熟習此技藝者在不脫離本發明之精神和範圍之內,相對上述實施例進行各種更動與修改仍屬本發明所保護之技術範疇,因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

〔本發明〕〔this invention〕

1‧‧‧領導車輛1‧‧‧Leading vehicles

11‧‧‧動態地域性群播模組11‧‧‧Dynamic Regional Broadcasting Module

12‧‧‧車隊建立模組12‧‧‧Fleet building module

13‧‧‧車隊成員監控模組13‧‧‧Fleet member monitoring module

2‧‧‧成員車輛2‧‧‧Member vehicles

21‧‧‧行駛資訊代理人21‧‧‧Travel Information Agent

22‧‧‧後繼者監控模組22‧‧‧ Successor Monitoring Module

23‧‧‧車輛預測模組23‧‧‧Vehicle Prediction Module

R‧‧‧動態地域性群播距離R‧‧‧Dynamic regional grouping distance

A‧‧‧領導可傳輸範圍A‧‧‧Leaderable transmission range

A1‧‧‧第一可傳輸範圍A1‧‧‧First transmittable range

第1圖:本發明動態車輛之通訊傳輸控制方法之系統架構示意圖。Fig. 1 is a schematic diagram showing the system architecture of a communication transmission control method for a dynamic vehicle according to the present invention.

第2圖:本發明動態車輛之通訊傳輸控制方法之步驟流程方塊圖。Fig. 2 is a flow chart showing the steps of the communication transmission control method of the dynamic vehicle of the present invention.

第3圖:本發明動態車輛之通訊傳輸控制方法之車隊範圍建立步驟示意圖。Figure 3 is a schematic diagram showing the steps of establishing a fleet range for the communication transmission control method of the dynamic vehicle of the present invention.

第4圖:本發明動態車輛之通訊傳輸控制方法之車隊建立初始化步驟示意圖。Figure 4 is a schematic diagram showing the initialization steps of the fleet establishment of the communication transmission control method of the dynamic vehicle of the present invention.

第5圖:本發明動態車輛之通訊傳輸控制方法之封包傳送步驟示意。Fig. 5 is a block diagram showing the steps of packet transmission in the communication transmission control method of the dynamic vehicle of the present invention.

第6圖:本發明動態車輛之通訊傳輸控制方法之新成員建立步驟示意。Fig. 6 is a schematic diagram showing the steps of establishing a new member of the communication transmission control method of the dynamic vehicle of the present invention.

Claims (6)

一種動態車輛之通訊傳輸控制方法,包含步驟:(1)藉由一領導車輛建立一動態地域性區域;(2)藉由該領導車輛將一路由搜尋封包傳送給位在該領導車輛之一可傳輸範圍內的車輛;(3)藉由第一次接收該路由搜尋封包的車輛判斷是否位在該動態地域性區域內,若判斷為「是」,該車輛係成為一成員車輛,並進行步驟(4),若判斷為「否」,該車輛係進行步驟(6);(4)藉由該成員車輛計算一延遲時間,並在等待該延遲時間後將所接收之路由搜尋封包傳送給位在該成員車輛之可傳輸範圍內的車輛,且此時第一個傳送該路由搜尋封包之成員車輛係成為一中繼車輛,並接著進行步驟(5),該步驟(4)之延遲時間係如以下所述公式計算: 其中,T為該成員車輛的延遲時間,Vm 為該成員車輛的車速,Vl 為傳送該路由搜尋封包之車輛的車速,Dlm 為該兩車輛之間的距離,A為可傳輸範圍的距離;(5)藉由接收該成員車輛所傳送之路由搜尋封包的車 輛,判斷是否為第一次接收,若判斷為「是」,係重新進行步驟(3),若判斷為「否」,則進行步驟(7);(6)判斷是否位在該動態地域性區域朝行駛方向的後方,若判斷為「是」,係進行步驟(7),若判斷為「否」,該車輛係不允許加入車隊,並結束;及(7)藉由該中繼車輛定期收集其自身之可傳輸範圍內之成員車輛的行駛資訊,並傳送給該領導車輛加以管控。A communication transmission control method for a dynamic vehicle includes the steps of: (1) establishing a dynamic regional area by a leading vehicle; and (2) transmitting, by the leading vehicle, a route search packet to one of the leading vehicles. (3) The vehicle that receives the route search packet for the first time determines whether it is located in the dynamic regional area. If the determination is YES, the vehicle becomes a member vehicle, and steps are performed. (4) If the determination is No, the vehicle performs step (6); (4) calculates a delay time by the member vehicle, and transmits the received route search packet to the bit after waiting for the delay time. a vehicle within the transmit range of the member vehicle, and at this time, the first member vehicle transmitting the route search packet becomes a relay vehicle, and then proceeds to step (5), and the delay time of the step (4) is Calculated as described below: Where T is the delay time of the member vehicle, V m is the vehicle speed of the member vehicle, V l is the vehicle speed of the vehicle transmitting the route search packet, D lm is the distance between the two vehicles, and A is the transmittable range (5) determining whether it is the first reception by receiving the route search packet transmitted by the member vehicle, and if the determination is YES, the step (3) is repeated, and if the determination is "No", Then, step (7) is performed; (6) determining whether it is located behind the driving direction in the dynamic regional area. If the determination is YES, step (7) is performed, and if the determination is "NO", the vehicle is not Allowing to join the team and ending; and (7) by the relay vehicle regularly collecting driving information of the member vehicles within its own transmission range, and transmitting to the leading vehicle for control. 依申請專利範圍第1項所述之動態車輛之通訊傳輸控制方法,其中步驟(1)建立該動態地域性區域,係預先於欲構成車隊之數個車輛中以行駛方向最前方之車輛做為該領導車輛,並以該領導車輛行駛方向後方之一動態地域性群播距離以內的範圍做為該動態地域性區域。 According to the method for controlling communication transmission of a dynamic vehicle according to claim 1, wherein the step (1) establishes the dynamic regional region, which is pre-existing in the vehicle in the front of the driving direction among the plurality of vehicles that are to form the fleet. The leader vehicle is the dynamic regional area within a range of one of the dynamic regional grouping distances behind the driving direction of the leading vehicle. 依申請專利範圍第1項所述之動態車輛之通訊傳輸控制方法,其中步驟(3)中之第一次接收該路由搜尋封包的車輛係不包含該領導車輛。 The communication transmission control method for a dynamic vehicle according to claim 1, wherein the vehicle that receives the route search packet for the first time in the step (3) does not include the leader vehicle. 依申請專利範圍第1項所述之動態車輛之通訊傳輸控制方法,其中步驟(7)另包含一預測步驟,該預測步驟係藉由各該中繼車輛分別計算一脫離時間,並依據其自身之延遲時間來判斷脫離前一輛中繼車輛或該領導車輛之可傳輸範圍所需的時間,以供該前一輛中繼車輛或該領導車輛預先在該脫離時間之前重新找尋另一中繼車輛來替代。 The communication transmission control method for a dynamic vehicle according to claim 1, wherein the step (7) further comprises a prediction step of calculating a departure time by each of the relay vehicles, and according to the self Delay time to determine the time required to deviate from the transmit range of the previous relay vehicle or the lead vehicle for the previous relay vehicle or the lead vehicle to re-see another relay before the departure time The vehicle is replaced. 依申請專利範圍第4項所述之動態車輛之通訊傳輸控 制方法,其中該脫離時間係如以下所述公式進行計算: 其中,Pt 為各該中繼車輛的脫離時間,A為可傳輸範圍的距離,Vr 為各該中繼車輛的車速,Vn 為前一輛中繼車輛或該領導車輛的車速,Dnr 為該二車輛之間的距離,T為各該中繼車輛的延遲時間。The communication transmission control method for a dynamic vehicle according to item 4 of the patent application scope, wherein the departure time is calculated according to the following formula: Where P t is the departure time of each of the relay vehicles, A is the distance of the transmittable range, V r is the speed of each of the relay vehicles, and V n is the speed of the previous relay vehicle or the leading vehicle, D Nr is the distance between the two vehicles, and T is the delay time of each of the relay vehicles. 依申請專利範圍第1項所述之動態車輛之通訊傳輸控制方法,其另包含一新成員建立步驟,該新成員建立步驟係在完成車隊的建立後進行,其包含藉由一新車輛傳送一加入請求封包給最接近自身之中繼車輛;藉由接收該加入請求封包之中繼車輛傳送該路由搜尋封包給該新車輛;藉由該新車輛判斷是否位在該動態地域性區域內,若判斷為「是」,該新車輛則加入車隊成為該成員車輛,若判斷為「否」,該新車輛則不允許加入車隊。 The method for controlling communication transmission of a dynamic vehicle according to claim 1 of the patent application, further comprising a new member establishing step, the new member establishing step being performed after the completion of the establishment of the fleet, comprising transmitting a new vehicle Adding a request packet to the relay vehicle closest to itself; transmitting the route search packet to the new vehicle by the relay vehicle receiving the join request packet; determining whether the new vehicle is located in the dynamic regional area, if If the judgment is "Yes", the new vehicle will join the team to become the member vehicle. If the judgment is "No", the new vehicle will not be allowed to join the team.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104601667A (en) * 2014-12-23 2015-05-06 武汉大学 Gapless vehicle networking assist downloading method
CN110505254A (en) * 2018-05-16 2019-11-26 华为技术有限公司 A kind of communication means, system and the terminal of platooning's traveling
TWI704521B (en) * 2018-12-06 2020-09-11 英華達股份有限公司 Driving system with average energy consumption from fleet of autonomous cars and method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112201062B (en) * 2019-07-08 2022-05-03 中国电信股份有限公司 Control method, system, device and computer readable storage medium for vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100201543A1 (en) * 2009-02-09 2010-08-12 Gm Global Technology Operations, Inc. Trust-based methodology for securing vehicle-to-vehicle communications

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100201543A1 (en) * 2009-02-09 2010-08-12 Gm Global Technology Operations, Inc. Trust-based methodology for securing vehicle-to-vehicle communications

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Yuan-Tse Yu、Sheau Ru Tong、Chai-Pi Chang、 Ling Lee,"以車間通訊為基礎之救護車緊急救護輔助系統-主動緊急訊息廣播協定",2008臺灣網際網路研討會論文集,2008年10月20~22日 *
龔旭陽、郭茂源、吳哲一、吳岱洋,"基於Geocast之車間通訊無接縫傳輸管理控制機制", 第二十一屆國際資訊管理學術研討會論文集,2010年5月21~22日 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104601667A (en) * 2014-12-23 2015-05-06 武汉大学 Gapless vehicle networking assist downloading method
CN104601667B (en) * 2014-12-23 2017-12-15 武汉大学 Gapless car networking assists method for down loading
CN110505254A (en) * 2018-05-16 2019-11-26 华为技术有限公司 A kind of communication means, system and the terminal of platooning's traveling
CN110505254B (en) * 2018-05-16 2020-11-06 华为技术有限公司 Communication method, system and terminal for vehicle formation driving
TWI704521B (en) * 2018-12-06 2020-09-11 英華達股份有限公司 Driving system with average energy consumption from fleet of autonomous cars and method thereof

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