Because many netizens can't grasp the key points of sand table model making, Huaye model will briefly introduce the basic requirements of landform sand table. Firstly, with its good practicability, sand table model is widely used in the field of urban planning and design, showing the planning blueprint, as well as in many fields such as environmental governance, engineering transformation, agricultural planning, real estate design and so on. Used to display its characteristics. Different models have different characteristics and different materials. Different models are suitable for different situations. Sand table model is an expression of the system, process, thing or concept studied. It can also refer to samples made according to experiments, drawings, enlargement or reduction. These samples are usually used for exhibition, testing or casting mechanical parts, etc.

地形地貌在沙盘模型制作

Application of landform in sand table model making

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 membrane touch switch, which can be installed on the surface or side of the valve body, and can be released and transported by slideway. Infrared remote control means to complete all manual control functions except power supply, and the remote control distance shall not exceed 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 street lamps, range lines of key areas, etc., using optical fiber as light-emitting device, spotlight as light source, and light source color to distinguish content. Thematic elements can be represented by light-emitting diodes 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.

北京模型公司

Beijing model company

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 the mold base and outer packaging. The disk height is less than 1m, and the field of view angle is about 20 ° - 30 °. At present, the outer packaging structure is becoming more and more luxurious. The outer packaging type can be designed according to the user's requirements. Its basic requirement is that the outer packaging should be coordinated with the valve body and have a beautiful and generous 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 programs, and uses optical discs, optical disc drives, power amplifiers and speakers to complete the search and playback under the control of the computer.