摘要：【中文】本发明实施例提供一种用于测量转角的方法、装置和系统及机器可读存储介质，属于车辆领域。该方法包括：接收在车轮转向的过程中光斑移动的视频或图像，其中光斑为光源在挡光板上的成像，挡光板的不随车轮转向而发生位移的固定点与光源所在位置之间的第一距离固定，光源所在位置与光斑之间的距离随车轮的转向而变化；获取车轮未转向时的第一夹角和第二夹角；以及基于第一距离、第二距离、车轮未转向时的第一夹角和第二夹角确定车轮的转角。藉此，实现了简单地确定车轮的转角，保证了长期运行的可靠性。 【EN】The embodiment of the invention provides a method, a device and a system for measuring a corner and a machine-readable storage medium, and belongs to the field of vehicles. The method comprises the following steps: receiving a video or an image of light spot movement in the process of wheel steering, wherein the light spot is an image of a light source on a light barrier, a first distance between a fixed point of the light barrier, which does not displace along with the wheel steering, and the position of the light source is fixed, and the distance between the position of the light source and the light spot is changed along with the wheel steering; acquiring a first included angle and a second included angle when the wheels are not steered; and determining the rotation angle of the wheel based on the first distance, the second distance, the first included angle and the second included angle when the wheel is not steered. Therefore, the turning angle of the wheel is simply determined, and the reliability of long-term operation is ensured.

摘要：【中文】本发明实施例提供一种用于确定车辆航向角的方法、系统和拖拉机，属于自动控制技术领域。所述方法包括：获取转向油缸的活塞杆在当前时刻的移动距离；确定与所述转向油缸的活塞杆在当前时刻的移动距离对应的车辆航向角的偏转角，并将所述车辆航向角的偏转角作为第一偏转角；确定与所述转向油缸的活塞杆在当前时刻的移动距离对应的车辆前轮转角，并将车辆前轮转角作为第二偏转角；将第一偏转角和第二偏转角进行比较；以及根据所述第一偏转角和所述第二偏转角的比较结果，预测当前时刻之后的所述车辆的航向角。通过上述的技术方案，采用车辆航向角的偏转角和车辆前轮转角相互校准和修正的方式来预测车辆的航向角，可以大大提高预测结果的精确度。 【EN】The embodiment of the invention provides a method and a system for determining a vehicle course angle and a tractor, belonging to the technical field of automatic control. The method comprises the following steps: acquiring the moving distance of a piston rod of a steering oil cylinder at the current moment; determining a deflection angle of a vehicle course angle corresponding to the moving distance of a piston rod of the steering oil cylinder at the current moment, and taking the deflection angle of the vehicle course angle as a first deflection angle; determining a vehicle front wheel corner corresponding to the moving distance of the piston rod of the steering oil cylinder at the current moment, and taking the vehicle front wheel corner as a second deflection angle; comparing the first deflection angle with the second deflection angle; and predicting the course angle of the vehicle after the current moment according to the comparison result of the first deflection angle and the second deflection angle. By the technical scheme, the heading angle of the vehicle is predicted by adopting a mode that the deflection angle of the heading angle of the vehicle and the front wheel angle of the vehicle are mutually calibrated and corrected, so that the accuracy of a prediction result can be greatly improved.

摘要：【中文】本发明提供了一种轻量级智慧农业异构物联网管理系统，包括访问控制层、业务处理层、消息解析层和通信传输层；访问控制层用于实现配置管理、应用访问控制，提供访问安全控制策略；业务处理层完成终端接入管理、动态配置管理、环境数据存储与获取，以及设备远程控制；消息解析层用于完成终端鉴权与消息加解密处理；通信传输层用于适配各类异构物联网终端，完成消息的统一收发。所述系统实现各种智慧农业应用场景下的各类终端和传感网络的广泛接入，支持各类终端灵活配置与传感器的即插即用，支持环境数据的压缩存储与插值解压还原、支持设备远程安全控制；本发明可应用于大田种植、设施园艺、水产养殖、畜禽养殖等不同的应用场景。 【EN】The invention provides a lightweight intelligent agricultural heterogeneous Internet of things management system, which comprises an access control layer, a service processing layer, a message analysis layer and a communication transmission layer, wherein the access control layer is used for controlling the access of a plurality of internet of things; the access control layer is used for realizing configuration management and application access control and providing an access security control strategy; the service processing layer completes terminal access management, dynamic configuration management, environment data storage and acquisition and equipment remote control; the message analysis layer is used for finishing terminal authentication and message encryption and decryption processing; and the communication transmission layer is used for adapting to various heterogeneous Internet of things terminals to complete uniform message receiving and sending. The system realizes the wide access of various terminals and sensor networks under various intelligent agricultural application scenes, supports the flexible configuration of various terminals and the plug and play of sensors, supports the compression storage and interpolation decompression and restoration of environmental data, and supports the remote safety control of equipment; the invention can be applied to different application scenes such as field planting, facility gardening, aquaculture, livestock breeding and the like.

摘要：【中文】本申请涉及一种连接组件及磁悬浮轨道梁与功能件的连接方法。所述连接组件包括磁悬浮轨道梁；预埋板，包括固定在所述磁悬浮轨道梁内部的预埋部和突出于所述磁悬浮轨道梁的端面的连接部；功能件；连接板，与所述功能件固定连接并突出于所述功能件的端面；其中，所述连接部与所述连接板可调节相对位置并固定连接，以使所述磁悬浮轨道梁与所述功能件定位并固定连接。本发明提供的连接组件和磁悬浮轨道梁与功能件的连接方法，通过调节连接部和连接板的具体位置，能够实现磁悬浮轨道梁和功能件的连接的安装精度，不需要使用大型机床，占地空间小、调节定位快捷方便，降低了磁悬浮轨道梁与功能件的连接成本。 【EN】The application relates to a connecting assembly and a connecting method of a magnetic suspension track beam and a functional piece. The connecting assembly comprises a magnetic suspension track beam; the embedded plate comprises an embedded part fixed inside the magnetic suspension track beam and a connecting part protruding out of the end face of the magnetic suspension track beam; a functional element; the connecting plate is fixedly connected with the functional part and protrudes out of the end face of the functional part; the connecting part and the connecting plate can adjust relative positions and are fixedly connected, so that the magnetic suspension track beam and the functional part are positioned and fixedly connected. According to the connecting component and the connecting method of the magnetic suspension track beam and the functional piece, the specific positions of the connecting part and the connecting plate are adjusted, so that the connecting installation precision of the magnetic suspension track beam and the functional piece can be realized, a large machine tool is not needed, the occupied space is small, the adjustment and the positioning are rapid and convenient, and the connecting cost of the magnetic suspension track beam and the functional piece is reduced.

摘要：【中文】本发明适用于属于磁悬浮轨道交通领域，本发明所提供的一种磁悬浮轨道梁，该磁悬浮轨道梁包括：底板和设置在底板上表面的两个以上的主梁，所述底板开设有通气结构。通过上述设置，在底板上开设通气结构，能够将列车运行时在底板上方产生的高速气流通过通气结构导流而出，可以减小该高速气流产生的对底板的气动力，从而降低了气动力对轨道造成的不良影响。 【EN】The invention is suitable for belonging to the magnetic suspension rail traffic field, the magnetic suspension rail beam that the invention provides, the magnetic suspension rail beam includes: the bottom plate and set up the girder more than two on the bottom plate upper surface, the bottom plate has seted up ventilation structure. Through the arrangement, the ventilation structure is arranged on the bottom plate, high-speed airflow generated above the bottom plate when a train runs can be guided out through the ventilation structure, and aerodynamic force generated by the high-speed airflow on the bottom plate can be reduced, so that adverse effects of the aerodynamic force on a track are reduced.

摘要：【中文】本发明公开了一种双向可调节的桥梁支座，支座包括上支座板、下支座板和调节组件，其中，上支座板位于桥梁的梁体下方；下支座板位于上支座板和桥梁的桥墩之间；调节组件包括中间板、滑动板和锁定件，中间板位于上支座板下方，滑动板可滑动地设置在中间板和下支座板之间，滑动板与中间板相互贴合的接触面为斜面；中间板和滑动板通过锁定件结合时，支座具有第一调节模式；中间板和滑动板分离时，支座具有第二调节模式。通过对调节组件施加水平方向的力，可实现支座的高度调节和水平调节。这种水平方向施力进行高度调节的方式，将竖向的高度调节转换成便于操作的水平调节方式，而且，高度调节和水平调节可多次重复进行。 【EN】The invention discloses a bidirectional adjustable bridge support, which comprises an upper support plate, a lower support plate and an adjusting assembly, wherein the upper support plate is positioned below a beam body of a bridge; the lower support plate is positioned between the upper support plate and the bridge pier of the bridge; the adjusting component comprises a middle plate, a sliding plate and a locking piece, the middle plate is positioned below the upper support plate, the sliding plate is slidably arranged between the middle plate and the lower support plate, and the contact surface of the sliding plate and the middle plate which are mutually attached is an inclined surface; when the intermediate plate and the sliding plate are combined through the locking piece, the support has a first adjusting mode; the carriage has a second mode of adjustment when the intermediate plate and the sliding plate are disengaged. By applying a force in the horizontal direction to the adjusting assembly, the height adjustment and the horizontal adjustment of the support can be realized. The mode of applying force in the horizontal direction to adjust the height converts vertical height adjustment into a horizontal adjustment mode convenient to operate, and the height adjustment and the horizontal adjustment can be repeatedly performed for multiple times.

摘要：【中文】本发明公开了一种弹射起飞和拦阻着陆冲击载荷模拟装置及模拟方法，弹射起飞和拦阻着陆冲击载荷模拟装置包括弹射拦阻冲击波形控制单元、伺服控制单元、传感单元、冲击载荷加载装置和液压动力单元；弹射起飞和拦阻着陆冲击载荷模拟方法中，通过波形预处理，实现参考波形在液压伺服驱动方式下试验加载可行；通过波形修正控制方法，提高了控制精度。本发明基于液压驱动方式，解决了GJB 150.18A‑2009《军用装备实验室环境试验方法，第18部分：冲击试验》程序Ⅷ中所规定的阻尼正弦波和时间历程波形的加载和控制问题，能够大幅缩短位移同时又能精确模拟弹射拦阻冲击载荷，具有重复性好、试验效率高等特点。 【EN】The invention discloses a device and a method for simulating impact loads of catapult takeoff and arresting landing, wherein the device for simulating the impact loads of catapult takeoff and arresting landing comprises a catapult arresting impact waveform control unit, a servo control unit, a sensing unit, an impact load loading device and a hydraulic power unit; in the method for simulating the impact load of the catapult takeoff and the arresting landing, the test loading of the reference waveform in a hydraulic servo driving mode is feasible through waveform preprocessing; and the control precision is improved by the waveform correction control method. The invention is based on a hydraulic driving mode, and solves the problem of GJB150.18A-2009 laboratory environment test method for military equipment, part 18: the loading and control problems of the damping sine wave and the time history waveform specified in the impact test program VIII can greatly shorten the displacement and accurately simulate the ejection arresting impact load, and the method has the characteristics of good repeatability, high test efficiency and the like.