System and method for preventing mine car from evading weighing

Abstract

The present invention relates to a system and method capable of preventing miner's truck from evading weighing. Said system is composed of track-type mass measurement loading device, two group of infrared scanners, weighing controller, infrared controller and computer equipment of monitoring centre. Said invention also provides the working principle said system, and also provides the concrete steps of said method.

Description

technical field [0001] The invention relates to a system for preventing mining vehicles from evading weighing, which is adopted when the taxation department monitors and calculates the output of mineral products. The invention also relates to a method for preventing mining vehicles from evading weighing. Background technique [0002] When the tax department calculates taxes on mineral products, it uses the output of mineral products as the basis, and collects taxes on mineral product manufacturers through the data obtained from weighing the mine trucks loaded with mineral products when they leave the mine. In actual operation, the weighing data is collected remotely, and the personnel of the taxation department are not at the mining site. In this way, the taxation department must effectively monitor the output of mineral products to prevent mineral production enterprises from passing through the mines loaded with mineral products. Cars evade weighing (generally using the me...

AI Technical Summary

Problems solved by technology

[0004] 1. Weighing discrimination method - burying a track-type mass measuring carrier under the front rail, and roughly using pre-weighing as a pre-weighing warning. Its advantage is that it can reliably distinguish whether it is pedestrians or mine cars. This method is inherently weighing, and the production enterprise can also use the "bridge" method to avoid the weighing of mine trucks, and the cost is high and the construction is difficult

[0005] 2. Proximity sensor distinction method - this is a method widely used in the industry. It is to install metal sensors beside the track. It is damaged by the impact of the slag when the mine car passes by, the lifespan is very short, and the sensor consumes a lot of power. In addition, iron plates and magnets can easily make it invalid

[0006] 3. Ground sense coil discrimination method - bury the ground sense coil under the track, and use the electromagnetic disturbance when the mine car passes by to determine the passage of the mine car. The advantage is that it is not affected by pedestrians, but the construction is difficult, and the coil is difficult to achieve moisture-proof underground. The same piece of iron cover can make it completely invalid, and because the coil induction signal is very weak, it needs a special circuit to process, and its weak analog signal itself has very weak anti-interference ability, which requires high requirements on electronic technology and board-making installation process.

[0007] 4. Ultrasonic detection method - install an ultrasonic detection device next to the track to detect the passing of the mine car, which is easily disturbed by pedestrians. The ultrasonic transmitter and receiver are all open sound channels and are open, which is very easy to absorb dust and is easy to be blocked by dust in the mining area. And failure, and high cost, inconvenient installation

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