baber/WOPTO huggingface dataset:
Patent WO-2022193302-A1 (WO)
Inventor: SHAN RONGHUA
IPC: E04H15/10
Filed: 2021-03-19
Abstract: The present utility model provides a tent support frame, provided with a group of ceiling structure and four groups of lower support rods located on the lower side of the ceiling structure. The four groups of lower support rods are located at the four corners of the lower side of the ceiling structure, and the ceiling structure is inserted into the lower support rods; the ceiling structure comprises four groups of upper support rods and a ceiling assembly, the upper support rods are respectively inserted into the lower support rods, the upper support rods and the lower support rods are of hollowed structures, mounting holes communicated with the hollowed structures are formed in side surfaces of the upper support rods and/or the lower support rods, and the mounting holes are used for mounting an illumination assembly and/or a sound box having a Bluetooth function. According to the tent support frame provided by the present utility model, the illumination structure is mounted in the structure of the tent support frame, so that no additional lamp needs to be carried; and since the four upper support rods of a tent are each provided with the illumination structure, the shaded area of a shadow is reduced, and the illumination in the tent is clearer.
Patent WO-2022088593-A1 (WO)
Inventor: DUAN XINGGUANG
IPC: B25J11/00
Filed: 2021-03-23
Abstract: La présente invention concerne un procédé et un dispositif de commande de bras robotique et un procédé d'apprentissage de modèle de coopération homme-machine. Le procédé de commande de bras robotique comprend les étapes consistant à : obtenir un modèle de coopération homme-machine, le modèle de coopération homme-machine étant un modèle destiné à déterminer une attitude attendue d'un bras robotique selon une force d'interaction homme-machine ; obtenir l'attitude au moment actuel et obtenir, selon le modèle de coopération homme-machine, une attitude attendue correspondant à la force d'interaction homme-machine au moment actuel ; générer, en fonction de l'attitude au moment actuel et de l'attitude attendue correspondant à la force d'interaction homme-machine au moment actuel, une trajectoire optimale où le bras robotique se déplace ; et commander le bras robotique en fonction de la trajectoire optimale. La présente invention résout le problème selon lequel un robot ne peut pas se déplacer le long d'une trajectoire prévue par l'être humain.
Patent WO-2022012089-A1 (WO)
Title: Radiating assembly and mounting method therefor
Inventor: LI SHICHAO
IPC: H05K7/20
Filed: 2021-03-30
Abstract: The present invention relates to the technical field of electronic radiators, in particular to a radiating assembly and a mounting method therefor. The radiating assembly comprises: a base plate, a plurality of blocking bars being uniformly distributed on the base plate, and two adjacent blocking bars forming a mounting groove; a radiating toothed plate, fins of the radiating toothed plate being mounted in the mounting grooves, and a plurality of connecting holes being uniformly distributed in the fins in the lengthwise direction; and riveting members, two ends of the riveting members respectively being provided with a pressure-bearing portion and a connecting portion, the connecting portion being connected to the bottom faces of the mounting grooves, and the pressure-bearing portion being located above the top faces of the fins, extending in the circumferential directions of the connecting holes after pressure is applied to the pressure-bearing portion, and being attached to the top faces of the fins. Various combined riveting is used to achieve the effects of quick mounting, firm structure, balanced radiation and high efficiency of the assembly.
Patent WO-2021208736-A1 (WO)
Inventor: GUO YUCHEN
IPC: H04L5/00
Filed: 2021-03-31
Abstract: 本申请涉及无线通信领域，尤其涉及一种的信道指示方法和相关装置，比如应用于支持802.11be的无线局域网WLAN中。该方法包括：接入点发送目标唤醒时间TWT元素以指示站点在TWT间隔内或TWT间隔间进行驻留信道轮换，可选的，还可以指示站点进行驻留信道轮换的顺序；接收到TWT元素的站点，确定可进行驻留信道轮换后，按照驻留信道轮换的顺序进行轮换，使得站点可以分别在不同的驻留信道上获得接入点的服务，可保证公平性，从而提升传输的效率。
Patent WO-2022205453-A1 (WO)
Inventor: ZHU QIANGHUA
IPC: H04W4/06
Filed: 2021-04-02
Abstract: 本申请提供了一种选择网络的方法。该方法可包括：第一上层网络的移动性管理网元获取第二指示信息，该第二指示信息指示第一下层网络能否通过新空口NR小区接入的分组交换PS会话提供互联网协议多媒体网络子系统IMS语音业务；根据该第二指示信息确定第一指示信息，该第一指示信息指示该第一上层网络能否支持通过非第三代合作伙伴计划N3GPP接入的PS会话提供IMS语音业务；向终端设备发送该第一指示信息。通过本申请的方案可以使得终端设备能够根据指示信息选择一个能够提供IMS语音服务的下层网络接入，保障终端设备在上层网络使用IMS语音业务的服务质量。
Patent WO-2021223589-A1 (WO)
Title: Manufacturing apparatus and method for microwave device
Inventor: YANG ZHIGANG
IPC: C23C14/48
Filed: 2021-04-20
Abstract: A manufacturing apparatus for a microwave device. The manufacturing apparatus (1) for the microwave device comprises: a clamp (10), wherein the clamp (10) comprises a base (11) capable of rotating about a first axis (A1), and a bracket (12) capable of swinging about a second axis (A2), the bracket (12) is connected to the base (11) to hold an insulating substrate (40), and the first axis (A1) and the second axis (A2) intersect; a source (20) for releasing metal ions towards the insulating substrate (40); and a controller (30), wherein the controller (30) is coupled to the clamp (10) and the source (20), and is configured to control a motion pattern of the clamp (10) and/or an angle of the source (20), such that the insulating substrate (40) receives the metal ions from a plurality of angles, and a metal layer (50) is formed on a surface (41) of the insulating substrate (40). Further disclosed is a manufacturing method for a microwave device.
Patent WO-2022233006-A1 (WO)
Inventor: FU ZHE
IPC: H04W36/00
Filed: 2021-05-06
Abstract: Les modes de réalisation de la présente demande divulguent un procédé d'accès aléatoire, un dispositif terminal, et un support de stockage lisible par ordinateur. Le procédé d'accès aléatoire comprend l'étape suivante : le dispositif terminal effectue un accès aléatoire sur la base de premières informations de tranche de réseau requises.
Patent WO-2022001394-A1 (WO)
Title: Display apparatus and electronic device
Inventor: WU WEIHONG
IPC: G09G3/3208
Filed: 2021-05-12
Abstract: The present disclosure relates to the display field and relates to a display apparatus and an electronic device. The display apparatus comprises a flexible display panel, multiple driver integrated circuits, a logic board, and a circuit board. The flexible display panel has a display area and a peripheral area surrounding the display area, and the multiple driver integrated circuits are located on a first surface of the flexible display panel and in the peripheral area; the logic board has an interface for electrically connecting to a processor of an electronic device; and the circuit board is electrically connected to the driver integrated circuits and the logic board, respectively. A first bendable section of the circuit board is configured to bend along a first side edge to a second surface of the flexible display panel, a second bendable section of the circuit board is configured to bend on the side in which the second surface is located, so that the logic board extends out from the first side edge, and a third bendable section of the circuit board is configured to bypass a hinge shaft of the electronic device. The logic board is not arranged on the flexible display panel to reduce the thickness of the flexible display panel.
Patent WO-2022236779-A1 (WO)
Title: Pénétration et drainage médicaux pour le traitement du glaucome
Inventor: ZHAO CHAN
IPC: A61F9/007
Filed: 2021-05-13
Abstract: L'invention concerne le traitement du glaucome par l'implantation d'une dérivation intraoculaire dans l'œil. De telles procédures peuvent faire appel à divers dispositifs de déploiement, dérivations et techniques d'implantation. La méthode de traitement du glaucome peut comprendre le positionnement d'une dérivation intraoculaire dans le tissu oculaire de sorte que la dérivation conduise le fluide de la chambre antérieure vers une région d'écoulement cible dans l'œil, telle que l'espace suprachoroïdien (14) et/ou l'espace sous-conjonctival (ou à l'extérieur de la conjonctive).
Patent WO-2021244389-A1 (WO)
Title: 通信方法以及相关联的通信装置、介质和芯片
Inventor: SUN FEI
IPC: H04W48/00
Filed: 2021-05-27
Abstract: 本公开的实施例提供了通信方法以及相关联的通信装置、介质和芯片。在一种通信方法中，目标接入网设备接收第一信息，第一信息指示第一网络的第一网络切片与第二网络的第二网络切片的关系，第一网络和第二网络不同。目标接入网设备至少基于第一信息来执行终端设备到目标接入网设备的接入控制。以此方式，本公开的实施例使目标接入网设备能够执行对终端设备跨网络接入时的接入控制，降低接入时延，减少终端设备由于会话被拒而导致的业务中断问题，确保了终端设备的业务连续性。
Patent WO-2021244468-A1 (WO)
Inventor: GUO MINGKUN
IPC: H04N5/265
Filed: 2021-05-31
Abstract: 本公开实施例公开了一种视频处理方法、视频处理装置、存储介质和电子设备。根据所述视频处理方法的一个示例，在获取原始图像序列和音频序列之后，其中原始图像序列包括按时间排序的多个原始图像，各原始图像包括原始关键点信息，音频序列包括按时间排序的多个音频信号，各音频信号包括声学特征，可按时间对应关系，根据音频序列中各音频信号的声学特征对原始图像序列中原始图像的至少一个原始关键点信息进行调整，以获取包括按时间排序的多个目标图像的目标图像序列。
Patent WO-2021249230-A1 (WO)
Title: 镀膜导电机构、镀膜装置及导电膜的镀膜方法
Inventor: ZHANG QIN
IPC: C25D17/02
Filed: 2021-05-31
Abstract: 本公开涉及电镀领域，具体而言，涉及一种镀膜导电机构(200)、镀膜装置(100)及导电膜(101)的镀膜方法。镀膜导电机构(200)包括：第一液下辊(210)；被配置成与负极连接的两个第一导电辊(220)；相互匹配且均不导电的第一挤压辊(230)和第二挤压辊(240)；第一挤压辊(230)与第二挤压辊(240)位于第一液下辊(210)与第一导电辊(220)之间；两个第一导电辊(220)被配置成分别与导电膜(101)的两个表面接触并对两个表面施加压力。
Patent WO-2021249447-A1 (WO)
Inventor: XU XIN
IPC: F16H25/22
Filed: 2021-06-09
Abstract: A one-way driving linear actuator, relating to the technical field of linear transmission, and comprising a driving motor, a transmission assembly, a rotating lead screw (20), a transmission nut (21), an inner tube (12), and an outer tube (13). The driving motor drives the rotating lead screw (20) to rotate by means of the transmission assembly; the rotating lead screw (20) rotates to drive the transmission nut (21) to move axially along the rotating lead screw (20); the transmission nut (21) drives the inner tube (12) to move relative to the outer tube (13); a connecting sleeve (22) is arranged on the transmission nut (21); the connecting sleeve (22) and the transmission nut (21) are axially fixed; the connecting sleeve (22) is separated from the inner tube (12); when the rotating lead screw (20) rotates in a forward direction, the end of the connecting sleeve (22) is abutted against the end of the inner tube (12) so as to drive the inner tube (12) to stretch out relative to the outer tube (13). The linear actuator only allows one-way pushing and thus has high safety, and moreover, the structure is relatively simple, and the cost is saved.
Patent WO-2022166068-A1 (WO)
Inventor: WU YANZHENG
IPC: B60L53/18
Filed: 2021-06-11
Abstract: L'invention concerne un dispositif automatique de charge d'automobile destiné à être utilisé dans un appareil de stationnement intelligent sans pilote, le dispositif étant appliqué à divers appareils de stationnement sans pilote ayant besoin d'une fonction de charge. Le dispositif comprend un support destiné à l'appareil de stationnement, le support étant pourvu d'un ensemble de levage et d'un ensemble de marche. Le dispositif est caractérisé en ce qu'il comprend en outre un dispositif d'accueil de charge, un adaptateur de charge, une base fixe de charge d'emplacement de remisage, et un dispositif de prise d'électricité d'emplacement de remisage, la base fixe de chargement d'emplacement de remisage étant disposée dans un espace de stationnement de l'appareil de stationnement, le dispositif d'accueil de charge étant disposé sur le support, le dispositif de prise d'électricité d'emplacement de remisage étant monté sur la base fixe de charge d'emplacement de remisage, et l'adaptateur de charge étant commuté sur la base fixe de charge d'emplacement de remisage au moyen du dispositif d'accueil de charge et étant électriquement connecté au dispositif de prise d'électricité d'emplacement de remisage. Le présent produit est un nouveau type de dispositif utilisé dans un appareil de stationnement intelligent sans pilote pour charger automatiquement des automobiles à nouvelle énergie stationnées dans des emplacements de remisage mécanique et conçu sur la base d'un appareil de stationnement intelligent sans pilote existant.
Patent WO-2021254307-A1 (WO)
Inventor: TONG XING
IPC: H04L45/121
Filed: 2021-06-15
Abstract: 本申请公开了一种确定报文发送路径的方法及装置。该方法包括：获取待处理报文的第一等价路径表、包括第一表项信息的第一聚合流表和包括第二表项信息的第一精确匹配流表；根据待处理报文的报文字段和第一表项信息确定第一信息；根据报文字段、第二表项信息和第一信息确定第二信息；根据第二信息和第一等价路径表，确定待处理报文的第一发送路径。该方法通过将待处理报文的报文字段与第一精确匹配流表的表项信息匹配，确定是否切换路径，使得第一报文处理装置对应的多条发送路径中的流量负载较为均匀，避免了某些发送路径负载流量较大，发生丢包或增大传输时延的问题，也避免了某些发送路径流量负载较小，发生网络带宽利用率较低的问题。
Patent WO-2022001957-A1 (WO)
Inventor: XIONG MENGHUA
IPC: A61P35/00
Filed: 2021-06-28
Abstract: 本发明提供了一种pH响应性破膜高分子材料及其制备方法与应用。该pH响应性破膜高分子材料具有式(I)所示结构。该高分子材料在正常生理pH下，呈疏水电中性，可自组装成PEG为壳层的纳米颗粒，与细胞膜的相互作用弱；当pH降低，可以质子化，形成疏水结构域和阳离子结构域组成的两亲性结构，与细胞膜具有强相互作用并且具有强破膜活性，因而可以高效、高选择性杀伤肿瘤细胞或细菌。
Patent WO-2023272609-A1 (WO)
Inventor: WANG TAO
IPC: C21D1/26
Filed: 2021-06-30
Abstract: L'invention divulgue un tuyau sans soudure de haute précision ayant une section transversale hexagonale de forme spéciale avec un cercle à l'intérieur pour une utilisation en énergie nucléaire, qui est constitué d'acier inoxydable ou d'un alliage résistant à la corrosion ayant un taux d'allongement supérieur à 35 %, a une largeur externe à travers des méplats de 10 à 68 mm avec une tolérance de ± 0,05 mm, et a un diamètre de cercle intérieur de 9 à 66 mm avec une tolérance de ± 0,05 mm. Est également divulgué un procédé de fabrication du tuyau sans soudure de haute précision ayant une section transversale hexagonale de forme spéciale avec un cercle à l'intérieur pour une utilisation en énergie nucléaire.
Patent WO-2022062561-A1 (WO)
Title: Middle frame of air conditioner having front panel
Inventor: CHEN XIAOPING
IPC: F24F13/14
Filed: 2021-07-02
Abstract: The present invention relates to the technical field of air conditioners, and particularly to a middle frame of an air conditioner having a front panel. The middle frame comprises: a recess structure provided on the front end surface of a middle frame body and used for accommodating the front panel; a lower air outlet provided at the lower portion of the front end surface of the middle frame body; a notch structure provided at the lower air outlet and used for placing an air deflector; and an upper air inlet provided on the upper end surface of the middle frame body. According to the present invention, the middle frame, and the recess structure, the lower air outlet, the notch structure and the upper air inlet thereon provide a mounting structure for structures such as the front panel, a driving mechanism, and the air deflector, so that a special blowing process having the front panel is implemented, various blowing requirements are met, moreover, a good appearance image is achieved, and the compact setting of the air conditioner is achieved.
Patent WO-2023279356-A1 (WO)
Title: Device for manufacturing intercalated graphene antimicrobial material
Inventor: ZHONG TIANMEI
IPC: B08B15/04
Filed: 2021-07-09
Abstract: Disclosed is a device for manufacturing an intercalated graphene antimicrobial material, comprising a dust-reducing mechanism and a shock-absorbing protective mechanism. The dust-reducing mechanism comprises a protective cover (1), an air flow guide cover (6) and a spray base (7), the protective cover (1) being fixedly connected to a connecting housing (2), the connecting housing (2) being fixedly connected to a dust collector (28), the dust collector (28) being fixedly connected to an air suction main pipe (3), the air flow guide cover (6) being fixedly connected to the protective cover (1), the air flow guide cover (6) being fixedly connected to a connecting branch pipe (4), the spray base (7) being fixedly connected to the protective cover (1), and the spray base (7) being fixedly connected to a water connection pipe (5). When a sliding block (13) slides along a chute (9), the sliding block (13) compresses a first telescopic rod (14) and a first spring (15), and at the same time stretches and absorbs vibration of a second spring (16). When the up and down vibration is excessively large, the sliding block (13) pulls and damps vibration of a manufacturing machine main body (12) by means of a fifth spring (25), and reduces vibration noise by damping the vibration of the manufacturing machine main body (12), while also prevent the device from rapidly aging because of vibration.
Patent WO-2022022379-A1 (WO)
Inventor: WANG SHENGSEN
IPC: H04W88/08
Filed: 2021-07-22
Abstract: Disclosed are a response frame replying method and apparatus and an AP system. A radio frequency processing device receives a PPDU sent by a STA. The radio frequency processing device sends, by means of a wired medium, a frame obtained on the basis of the PPDU to a baseband processing device. The radio frequency processing device is separated from the baseband processing device. The radio frequency processing device generates and sends a target domain to an air interface in response to a target signal received from the baseband processing device by means of the wired medium. The target domain at least comprises a first domain of a response domain of the PPDU. The target signal is used for instructing the radio frequency processing device to immediately respond to the PPDU. The baseband processing device modulates the target signal to be transmitted on the wired medium to instruct the radio frequency processing device to immediately respond to the PPDU. The radio frequency processing device immediately generates and sends the target domain of the response frame to the air interface after receiving the target signal. During this process, the delay is relatively low, and the entire delay of the AP system replying a response frame is relatively low.
Patent WO-2022062677-A1 (WO)
Inventor: LI FEILONG
IPC: C30B29/22
Filed: 2021-08-03
Abstract: A ternary single crystal positive electrode material, a preparation method therefor and an application thereof. The preparation method comprises the following steps: mixing ternary polycrystalline micro-powder, heating, carrying out first sintering, and cooling to obtain an intermediate; carrying out air jet pulverization on the intermediate to obtain a single crystal material, washing with water, and centrifuging and drying to obtain a material of which the residual alkali content is lower than 1500 ppm; and adding a coating agent into the material, heating, carrying out second sintering, and cooling to obtain the ternary single crystal positive electrode material. Polycrystalline materials are pulverized into single crystal small particles by utilizing an air jet pulverization device, such that the electrochemical performance of the materials is improved, and the energy density of the materials is improved.
Patent WO-2021249580-A1 (WO)
Title: 一种滑石片全自动粘接智能控制方法及系统
Inventor: HAN ZHIWEI
IPC: H01F41/02
Filed: 2021-08-09
Abstract: 本发明涉及一种滑石片全自动粘接智能控制方法，利用图像识别模块，自动识别待加工的硅钢片的规格和种类；根据硅钢片的规格和种类调用相对应的滑石片粘片的粘接轨迹规划路径，通过机械臂自动控制模块按照粘接轨迹规划路径自动将滑石片粘接到硅钢片的相应位置。本发明还涉及一种滑石片全自动粘接智能控制系统。本发明的智能控制方法和系统，实现了滑石片全自动粘接，保证了滑石片粘接的快速性、粘接性、准确性；生产结果表明滑石片粘接符合工艺标准和规范，滑石片排列整齐，粘接质量好；应用本发明生产效率极大提升，完全可以代替人工操作。
Patent WO-2022217791-A1 (WO)
Inventor: MA TIANTIAN
IPC: H01L51/54
Filed: 2021-08-11
Abstract: L'invention concerne une composition utilisée pour un dispositif photoélectrique organique, et un élément électronique et un appareil électronique associé, qui appartiennent au domaine technique de l'électroluminescence organique. La composition de l'invention comprend : un premier composé et un second composé, le premier composé étant représenté ar la formule I, et le second composé étant représenté par la formule II.
Patent WO-2023010615-A1 (WO)
Inventor: DU XIULIANG
IPC: C08L83/04
Filed: 2021-08-18
Abstract: 一种BOPP双面热封镭射防伪基膜，包括依次设置的上层结构、中层结构与下层结构。利用上层结构提供较好的热封性能、较好的爽滑性能及薄膜间的抗粘连性能，在中层结构中加入石油树脂与抗静电剂使其具有较高的收缩率、模量及较好的抗静电效果，在下层结构中加入低温热封性茂金属及丙烯-乙烯-丁二烯三元共聚物使混合改性后的薄膜具有较低的起封温度及较好的模压效果，从而使得到的BOPP双面热封镭射防伪基膜具有良好的热封、模压后图案耐热性好、原料成本低等优点。
Patent WO-2022057880-A1 (WO)
Title: Lighting fixture and light source system thereof
Inventor: HUANG JUNHUI
IPC: F21V7/04
Filed: 2021-09-17
Abstract: A lighting fixture and a light source system thereof, a second reflector (400) and a third reflector (500) both being partially arranged in a first reflector (300), the third reflector (500) being positioned in a space surrounded by the second reflector (400), a first light-emitting body (100) and a second light-emitting body (200) both being arranged in the first reflector (300), a light outlet (311) being disposed on the end part of the first reflector (300), the projection of the second reflector (400) towards the light outlet (311) being a first projection, the projection of the third reflector (500) towards the light outlet (311) being a second projection, the projection of the first light-emitting body (100) towards the light outlet (311) being a third projection, the projection of the second light-emitting body (200) in the direction of the light outlet (311) being a fourth projection, the first projection covering the third projection, and the second projection covering the fourth projection. The problem of current lighting fixtures having serious glare can be solved.
Patent WO-2022111001-A1 (WO)
Inventor: Chen Zukai
IPC: G06T19/20
Filed: 2021-09-17
Abstract: A face image processing method and apparatus, and an electronic device and a storage medium. The processing method comprises: obtaining initial dense point cloud data of a target face, and generating an initial virtual face image of the target face on the basis of the initial dense point cloud data (S101); determining a deformation coefficient of standard dense point cloud data corresponding to the initial dense point cloud data with respect to a standard virtual face image (S102); in response to an adjustment operation for the initial virtual face image, adjusting the deformation coefficient to obtain a target deformation coefficient (S103); and generating, on the basis of the target deformation coefficient and the standard dense point cloud data, a target virtual face image corresponding to the target face (S104).
Patent WO-2022121437-A1 (WO)
Title: Full-electronic turnout safety control system and method for vehicle-to-vehicle communications
Inventor: YANG CHUN
IPC: B61L7/08
Filed: 2021-09-23
Abstract: The present invention relates to a full-electronic turnout safety control system and method for vehicular communications. The system comprises: a communication module, configured to externally communicate with a resource manager and a maintenance system, respectively, and internally communicate with a turnout control module, a relay drive module and a relay acquisition module, respectively; the turnout control module, configured to control a turnout to rotate and to acquire a switch indication; the relay drive module, configured to drive a relay to be turned on or off according to a turnout power supply on or off command sent by the resource manager; the relay acquisition module, configured to acquire the on or off state of the relay, and respectively send the on or off state to the resource manager and the maintenance system by means of the communication module; and the relay, configured to connect the relay drive module, the relay acquisition module, and a switch machine drive loop. Compared with the prior art, the present invention has advantages of greatly saving labor costs and the like.
Patent WO-2023044758-A1 (WO)
Inventor: XU FANGLI
IPC: H04W76/10
Filed: 2021-09-24
Abstract: Des modes de réalisation de la présente invention concernent le fonctionnement à trajets multiples. Selon des modes de réalisation de la présente invention, un rapport de mesure est transmis à une station de base concernant un premier trajet entre l'équipement utilisateur et la station de base, le rapport de mesure indiquant une information de qualité de canal sur un ou plusieurs trajet(s) potentiel(s) entre l'équipement utilisateur et la station de base. Une commande d'ajout de trajet est ensuite reçue en provenance de la station de base, la commande d'ajout de trajet indiquant à l'équipement utilisateur d'ajouter un trajet parmi un ou plusieurs trajet(s) potentiel(s) en tant que second trajet. Le second trajet entre l'équipement utilisateur et la station de base est ensuite établi en fonction de la commande d'ajout de trajet.