由于许多网民无法掌握沙盘模型制作的沙盘要点，所以视野模型，对地形地貌沙盘的基本要求将作简要介绍。

Because many netizens can't grasp the key points of the sand table model, the basic requirements of the visual field model and the landform sand table will be briefly introduced.

1、控制方式分手控、遥控2种，手动控制用普通开关或手控面板进行控制。手控面板装置采用薄膜触控开关，可安装在阀体表面或侧面，安装在侧面可采用滑道进行释放输送。红外遥控方式是指完成除电源外的所有手控功能，遥控距离不超过8m。

1. There are two control modes: remote control and remote control. Manual control is controlled by ordinary switch or manual control panel. The manual control panel device adopts the membrane touch switch, which can be installed on the surface or side of the valve body, and the slide way can be used to release and transport when it is installed on the side. Infrared remote control means to complete all the manual control functions except power supply, and the remote control distance is not more than 8m.

2、光电显示内容，形成路灯、关键区域范围线等，采用光纤作为发光器件，射灯作为光源，光源颜色区分内容。专题元素可以用不同规格的发光二极管来表示。光电控制系统可由手动控制开关或计算机系统控制，显示部分由计算机存储器程序控制，并通过固态继电器等功放元器件输入显示单元。

2. Photoelectric display content, forming streetlights, key area line, etc., using optical fiber as light-emitting device, spotlight as light source, light source color to distinguish content. Thematic elements can be represented by LEDs of different specifications. The photoelectric control system can be controlled by manual control switch or computer system. The display part is controlled by computer memory program and input into the display unit through power amplifier components such as solid state relay.
                 

3、目前在模架和外包装中有两种木结构和铝合金结构。盘面高度小于1米，视场角度约为20度-30度。目前外包装结构越来越豪华，可根据用户要求设计外包装类型，其基本要求是外包装应与阀体协调，外观美观大方。

3. At present, there are two kinds of wood structure and aluminum alloy structure in mold base and outer packaging. The height of the disk is less than 1 meter, and the field of view is about 20-30 degrees. At present, the structure of the outer package is more and more luxurious. The type of the outer package can be designed according to the user's requirements. The basic requirement is that the outer package should be coordinated with the valve body and have a beautiful appearance.

4、语音系统简单的语音系统可以通过录音装置来完成。在高要求的情况下，语音系统使用计算机语言设计语音程序，使用光盘、光盘驱动器、功率放大器和扬声器在计算机控制下完成搜索和播放工作。

4. Voice system simple voice system can be completed by recording device. In the case of high requirements, the voice system uses computer language to design voice program, and uses CD, CD driver, power amplifier and loudspeaker to complete the search and play work under the control of computer.