在道路施工的 “战场” 上，水泥撒布车如同精准的 “材料输送兵”，而其料仓内的物料存量监测，则是保障施工顺利进行的关键环节。如何让施工人员随时掌握料仓内水泥的 “储备情况”，避免因物料不足中断施工，或因过量储备造成浪费？一套科学有效的存量监测方案，能让料仓化身 “一目了然的智慧管家”。

　　On the battlefield of road construction, cement spreading vehicles are like precise "material conveyors", and monitoring the inventory of materials in their silos is a key link to ensure the smooth progress of construction. How to keep construction personnel informed of the "reserve situation" of cement in the silo at all times, to avoid interruption of construction due to insufficient materials or waste caused by excessive reserves? A scientifically effective inventory monitoring plan can turn the silo into a "smart manager at a glance".

　　传统依靠人工观察判断料仓物料存量的方式，不仅效率低，还容易出现误差。如今，借助的称重传感器技术，可实现对料仓物料存量的精准监测。在水泥撒布车料仓的底部或支撑结构处，安装高精度的称重传感器，这些传感器就像料仓的 “敏感神经”，能实时感知料仓内物料重量的变化。当水泥被不断输送进仓，重量增加，传感器将重量信号转化为电信号，传输给车载控制系统；随着施工过程中水泥的撒布，重量减轻，系统也能及时获取数据。通过与初始设定的满载重量进行对比计算，就能精确得出当前料仓内剩余物料的存量，误差范围极小，为施工人员提供准确的物料信息。

　　The traditional method of relying on manual observation to determine the inventory of materials in the silo is not only inefficient, but also prone to errors. Nowadays, with the help of advanced weighing sensor technology, precise monitoring of material inventory in silos can be achieved. Install high-precision weighing sensors at the bottom or support structure of the cement spreading truck silo, which act as the "sensitive nerves" of the silo and can sense real-time changes in the weight of materials inside the silo. When cement is continuously transported into the warehouse and its weight increases, the sensor converts the weight signal into an electrical signal and transmits it to the onboard control system; With the spreading of cement during the construction process, the weight is reduced, and the system can also obtain data in a timely manner. By comparing and calculating with the initially set full load weight, the current inventory of remaining materials in the silo can be accurately determined with minimal error range, providing accurate material information for construction personnel.

　　除了称重传感器，料位传感器也在水泥撒布车料仓物料存量监测中发挥着重要作用。常见的料位传感器有超声波式和雷达式。超声波料位传感器安装在料仓顶部，它通过向料仓内发射超声波，当超声波遇到物料表面时会发生反射，传感器接收反射回来的信号，根据发射与接收的时间差，结合声波在空气中的传播速度，就能计算出物料表面到传感器的距离，进而推算出当前料位高度，判断物料存量。雷达式料位传感器的工作原理与之类似，但它利用的是电磁波，相比超声波传感器，雷达式传感器受环境因素（如温度、湿度、粉尘等）的影响更小，在水泥撒布车料仓这种粉尘较大、工况复杂的环境中，能更稳定地工作，准确测量料位，为物料存量监测提供可靠数据。

　　In addition to weighing sensors, level sensors also play an important role in monitoring the inventory of materials in cement spreading truck silos. Common level sensors include ultrasonic and radar sensors. The ultrasonic level sensor is installed at the top of the silo, which emits ultrasonic waves into the silo. When the ultrasonic waves encounter the surface of the material, they will be reflected. The sensor receives the reflected signal, and based on the time difference between transmission and reception, combined with the propagation speed of the sound waves in the air, the distance from the material surface to the sensor can be calculated, and the current level height can be calculated to determine the material inventory. The working principle of radar level sensors is similar, but they use electromagnetic waves. Compared to ultrasonic sensors, radar level sensors are less affected by environmental factors such as temperature, humidity, dust, etc. In environments with large dust and complex working conditions such as cement spreading truck silos, they can work more stably, accurately measure the level of materials, and provide reliable data for material inventory monitoring.

　　为了让施工人员更直观便捷地获取料仓物料存量信息，还需要一套完善的显示与报警系统。在驾驶室内，安装专用的显示屏，与称重传感器、料位传感器相连，将实时监测到的物料重量、料位高度等数据以数字、图表等形式清晰展示。施工人员无需下车，在驾驶过程中就能随时查看料仓存量情况。同时，系统还可设置预警阈值，当物料存量低于设定的下限值时，显示屏会闪烁警示灯光，并发出蜂鸣报警声，提醒施工人员及时补充物料，避免因物料耗尽导致施工中断；而当物料存量接近满载上限时，同样会触发预警，防止因过度装载造成隐患或物料溢出浪费。

　　In order to provide construction personnel with more intuitive and convenient access to the inventory information of materials in the material warehouse, a comprehensive display and alarm system is also needed. Install a dedicated display screen in the cab, connected to the weighing sensor and level sensor, to clearly display real-time monitoring data such as material weight and level height in the form of numbers, charts, etc. Construction personnel do not need to get off the car and can check the inventory status of the silo at any time while driving. At the same time, the system can also set warning thresholds. When the material inventory is below the set lower limit, the display screen will flash warning lights and emit a buzzing alarm sound to remind construction personnel to replenish materials in a timely manner and avoid construction interruptions caused by material depletion; When the material inventory approaches the full load limit, a warning will also be triggered to prevent safety hazards or material overflow waste caused by overloading.

　　此外，将物联网技术应用于水泥撒布车料仓物料存量监测，能进一步提升管理效率。通过车载终端，将料仓存量数据实时上传云端管理平台，施工管理人员在办公室或远程，借助电脑、手机等设备，就能查看多台水泥撒布车的物料存量情况，合理安排物料运输与调配计划。例如，当发现某台撒布车物料即将耗尽，而附近有其他车辆物料充足时，可及时调度，实现物料的合理共享，优化施工资源配置，提高整体施工进度。

　　In addition, applying IoT technology to the monitoring of material inventory in cement spreading vehicle silos can further improve management efficiency. Through the vehicle terminal, the inventory data of the silo is uploaded in real time to the cloud management platform. Construction management personnel can view the material inventory of multiple cement spreading trucks in the office or remotely with the help of computers, mobile phones, and other devices, and arrange material transportation and allocation plans reasonably. For example, when a scattering vehicle is found to be running out of materials and there are other vehicles nearby with sufficient materials, timely scheduling can be carried out to achieve reasonable material sharing, optimize construction resource allocation, and improve overall construction progress.

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