In livestock farming, livestock weight data is crucial, providing farmers with a reference basis to guide production more scientifically. A mobile livestock weighbridge for pig farms is provided, comprising a square base with a weighbridge inside. The bottom of the base is equipped with moving wheels, and four corner posts are set up at each of the four corners on the top of the base, connected by guardrails between them. The corner posts on both sides of the base in the length direction are connected by a top beam, with both ends of the top beam chamfered to form a fixed block. The fixed block is fixed to the top of the corresponding top beam with bolts, and an entrance and exit are formed between the two corner posts at the ends. A movable door is set up at the entrance and exit. Each end of the movable door has two leaves, and the surface of the corner post outside the entrance and exit is equipped with a cylindrical hinge ring. One side of the movable door is hinged inside the hinge ring through a pin; the other side is equipped with a cooperating lock catch. The livestock weighbridge is designed into a boat shape according to the body shape of livestock, with the lower part of the front rail tilting inward like a ship's bow, and the lower parts of the two side rails tilting inward at a certain angle. Several sets of positioning piles are set up at the entrance and exit of livestock on both side rails. The entrance for livestock is open, and the gate at the exit of the front rail also tilts inward at a certain angle. The bottom of the gate is equipped with hinges, and the top is equipped with a buckle, making it easy to open and close. The bottom of the entire boat-shaped enclosure is smaller in area than the top, facilitating the bottom plate to fall on the center of gravity of the electronic weighbridge. The overall structure of the insertion rail is in the shape of an upside-down mountain, with three horizontal bars connected by an arc bar. One is set up at each entrance and exit of the enclosure, inserted from the side rail, and a handle is set up at the top center of the insertion rail for easy positioning. The bottom plate can be a wooden board or steel plate, with an area slightly smaller than the bottom area of the enclosure. Four corner blocks are placed on the four corners of the bottom plate to maintain its balance when livestock enter and exit the cage. The electronic weighbridge is a commonly used model on the market. To facilitate movement, rolling wheels are set up at the four corners of the bottom of the enclosure. During operation, first place the electronic weighbridge under the bottom plate, allowing the center of gravity of the bottom plate to fall on the scale platform of the electronic weighbridge. Turn on the weighbridge and zero it out. Next, close the gate at the exit and allow the livestock to enter the cage through the entrance. Adjust the position of the stalls located in front and behind the livestock according to their body length, so that the livestock is centered on the floor. Then, read the livestock's weight from the display screen of the weighbridge. Finally, open the stall and gate at the exit, drive the livestock out of the enclosure, and then close the gate at the front for weighing the next livestock.

The livestock Weighing system utilizes a weighbridge channel, a wedge-shaped platform, a weighing instrument, a management host, and electronic ear tags RFID attached to each livestock. Its characteristics include a weighbridge consisting of a base, a weighing platform, a fence set up on the weighing platform for enclosing the livestock, and a weighing module positioned between the weighing platform and the base. At the entrance and exit of the weighbridge, there is a wedge-shaped platform adjacent to but not connected to the weighbridge. The weighing instrument is fixed outside the fence on one side of the weighbridge and wirelessly connected to the management host. The weighing instrument identifies the electronic ear tags RFID carried by the livestock, simultaneously controls the weighing module to start weighing, and wirelessly transmits the received identification results and weighing information to the management host. The electronic weighbridge is composed of at least two identical and independent weighing platform units. Each weighing platform unit includes a rectangular platform with four legs fixed at the bottom corners. The upper surface of the weighing platform is provided with several anti-slip patterns. The weighing instrument incorporates a livestock thermal release sensor, a main control chip, a livestock RFID module, and a data remote transmission module located inside. The management host uploads, downloads, and manages data from the livestock RFID module through the data remote transmission module. The livestock thermal release sensor, livestock RFID module, and weighing module are electrically connected to the main control chip. The livestock thermal release sensor transmits the detected signal of livestock entering the weighbridge to the main control chip, which controls the livestock RFID module to identify the electronic ear tags RFID carried by the livestock, simultaneously controls the weighing module to start weighing, and transmits the received identification results and weighing information to the management host through the data remote transmission module.