Most of the products in life now are digital, which is the process of converting information into digital (i.e., computer-readable) format. It refers to converting any continuously changing input such as the lines of a picture into a series of separated units, which is used in computers. 0 and 1 represent. Typically an analog-to-digital converter is used to perform this conversion. Easy to understand means that data is introduced into the computer and processed uniformly. This is the basic process of digitization.
Entering the new century, electronic technology has developed rapidly. High-precision electronic balances can distinguish microgram levels, and have improved their ability to adapt to the environment. The unattended weighing system is based on the Internet of Things, big data, cloud computing and other technologies. It integrates automatic vehicle identification system, intelligent gate system, video surveillance system, automatic voice system, infrared grating anti-cheating system and remote supervision system. It uses Cameras, smart gates, signal lights, floor scales and other equipment can automatically identify, process, control, collect and transmit operations during the weighing process.
There are many types of load cells for electronic scales, but we will focus on strain gauge smart scale load cells as it is often used exclusively for weighing. A smart scale load cell is essentially a sensor. It is a solid metallic element but elastic enough to deform under load and has strain gauges. Some weighing instruments use a single load cell, while others use multiple objects. When a load is placed on a scale, a strain gauge converts the force exerted by the load on the load cell into an electronic signal. Once the load is removed from the scale, the load cell returns to its original position.
Digital weighing sensors are considered a newcomer on the market and have obvious advantages in future development. Different from the manufacturing of analog sensors, digital weighing sensors are a new type of sensor that inputs analog quantities and outputs digital quantities. It is based on fully digital, two-way controllable, multi-access serial communication. It can connect independent field devices and perform functions such as diagnosis, control, and maintenance. The input and detection quantities of digital sensors can be any analog quantities, such as force, pressure, differential pressure, current, voltage, torque, temperature and humidity, etc. After determining the input physical quantity, various digital sensors can be made. A weighing digital sensor is a digital sensor whose input quantity is mass.
ZWDI is a digital load sensor. It is a high-precision digital sensor. The upper machine station sets the range and accuracy through the communication interface. Then ZWDI converts the analog signal into weight and uploads it to the upper machine. Mainly to facilitate program development, its communication protocol supports RS-485 and UART.