Application Research of UHF RFID Coal Mine Vehicle Intelligent Weighing Management

All along, there are a lot of material transportation vehicles in and out of the mining area every day, and procedures such as parking, registration, and weighing are required. The operator manually enters the data into the computer, which is not only time-consuming, but also has a large error rate. In addition, it is easy to breed human fraud. , Causing a lot of economic losses to enterprises. Therefore, in the mining area, vehicle import and export, weighing area, and unloading area how to quickly and effectively collect data, remote inspection and judgment system has become the primary issue.

Combined with the current situation of manual management of mine vehicles, UHF RFID coal mine vehicle intelligent weighing management can automatically record the vehicle license plate number, weight information, time information, etc. that are equipped with electronic tags, and write it into the host database, which can effectively eliminate artificial Errors to prevent over-balance jamming, cheating, etc. to ensure the accuracy of the original data collection.

Before entering the loading area, all transportation vehicles identify and record the vehicle information on the RFID tag through the UHF RFID reader, and weigh the weighing. After the weighing is completed, the server automatically records the weighing information, and the display screen displays the weighing information; transportation The vehicle enters the loading area for loading. After the loading is completed, it drives out of the loading area and weighs again. The weight information is automatically entered into the system, and the LED gives a weight reminder. The vehicle arrives at the destination and enters the unloading area to record the vehicle information through RFID identification. , And weigh the scales. After the weighing is completed, the server automatically records the weighing information, and the display screen displays the weighing information; the transport vehicle completes the unloading, and the scale is weighed after the unloading is completed, and the weight information is finally recorded. Through information comparison to determine whether there are omissions or residues. The UHF RFID coal mine weighing management system can automatically measure the weight of coal transported by the information of the coal transport truck when entering and leaving the site, and can call the data in the host database to query or form a report at any time.

RFID technology coal yard vehicle management workflow:

1. Registration

The mine registration office first registers the vehicles entering the mine and distributes a special label for the transportation of the mine, and then stores the relevant information of the card number, vehicle number, owner name, entrance time and entrance location in the label. In the host database.

2.计费

Only customers who have been issued with special labels for shipping and transportation can go to the invoice of the mine to purchase invoices.

3. Weighing empty car

After invoicing, the customer can drive the mine truck into the vehicle weighing channel for weighing. The vehicle detector installed at the crossing senses that the car is driving in, and transmits the signal to the front road gate and signal light. The road gate is immediately closed and the signal light turns red. Prompt the driver to drive slowly, and at the same time require the weighing instrument and reader to start working. After the tag on the mine truck is read by the reader, the reader transmits the information of the vehicle to the host computer, instructs the electronic scale to start transmitting the weight information of the vehicle, and at the same time, the camera monitors whether the vehicle is parked at the specified position and captures the image. When the host receives the card number and weight information, it accurately records and backs up the information, and then issues instructions to open the gate, and the mine truck drives into the mine to load the mine.

4. Loading ore

After the empty truck is overweight, it can be driven into the mine for loading.

5. Weighing ore weighing

After loading the mine, the mine truck needs to drive into the vehicle weighing road again for weighing. The vehicle detector installed at the crossing senses that the car is driving, and transmits the signal to the front road gate and the signal light. The road gate is immediately closed and the signal light turns red. The driver travels slowly, and at the same time requires the scale and reader to start working. After the tag on the mine truck is read by the reader, the reader antenna transmits the vehicle information to the host, instructs the electronic scale to start transmitting the weight information of the vehicle, and at the same time the camera monitors whether the vehicle is parked at the specified position and captures the image. After the host computer receives the card number and weight information, it accurately records and backs up the information, and then issues an order to open the gate, and the mining truck drives into the mine ticket office to issue the ticket.

6. Billing

After loading the mine truck, you need to go to the invoicing office again for invoicing. The invoicing office checks whether the information about the two weighings of the mine truck is consistent. When all the information is consistent, the billing office will automatically calculate the net weight of the shipped ore according to the management system and issue the bill.

7. Appearance

Finally, the coal transporter can hold the bill and go out of the coal yard after being inspected by the guard. Automatically record various required information such as vehicle entrance time, entrance location, vehicle weight, owner unit, etc. RFID technology automatically collects fast, can achieve fast vehicle weighing, improve the efficiency of weighing, reduce the number of vehicles And cause the phenomenon of queue overbalance. All over-balanced vehicles are automatically recorded by the computer, eliminating manual intervention, automatically recording data, and automatically checking and releasing. By realizing automatic measurement, the time required for each operation link is shortened, the connection capacity of the measurement system is improved, the labor intensity is reduced, and the labor cost is saved. Through the automatic collection of RFID electronic tags installed on coal transportation vehicles, it can quickly realize real-time monitoring of the measurement site, so that the data collection during the measurement process is fully automated and the data is accurate and fast, ensuring the accuracy and fairness of information collection and improving work efficiency. Reduce economic losses.

8. Unloading and weighing at destination

Transport the minecart to its destination. Before unloading the mine, the vehicle weighs into the destination and weighs it. The vehicle detector installed at the crossing senses that the car is driving in, and transmits the signal to the front road gate and signal light. The road gate is immediately closed and the signal light turns red to prompt driving The operator traveled slowly, and at the same time asked the weighing instrument and reader to start working. After the tag on the mine truck is read by the reader, the reader transmits the information of the vehicle to the host computer, instructs the electronic scale to start transmitting the weight information of the vehicle, and at the same time, the camera monitors whether the vehicle is parked at the specified position and captures the image. When the host receives the card number and weight information, it accurately records and backs up the information, and then issues a command to open the barrier.

9. Unloading

After the truck is weighed, it can be driven into the mine for unloading.

10. Empty car overweight

卸货后的矿石,卡车携带empty truck and weighs the bill. At the same time, the ticket is issued at the billing office. The billing office checks whether the information of the two weighings of the truck is consistent. Wait, if all the information is consistent, then the billing office will automatically calculate the net weight of the ore shipped according to the management system and give it to the invoice, and recover the special label for transportation.

11. Calculation and weighing

The whole loading process is divided into three calculations. The loading weighing is compared with the empty truck weighing to calculate the loading weight; the unloading yard weighing is compared with the loading weighing to check whether there is leakage in the transportation process; empty truck weighing Calculate the weight of the transported ore compared with the weighing at the unloading yard, and compare the weight of the ore calculated for the first time to calculate whether the ore is missing or remains.

What are the advantages of UHF RFID coal mine vehicle intelligent weighing management?

safety

RFID electronic tags cannot be forged or copied, which fundamentally eliminates the phenomenon of copying, forgery, and cheating ...

Strengthen management and put an end to favoritism and fraud

The UHF RFID electronic label is attached to the windshield of the car, and the weight weighed by the scale each time corresponds strictly to a card and a car.

Protect the security of the area and prevent the intrusion of illegal vehicles

This system can be integrated with a parking lot management system. Only vehicles with legally authorized electronic tags can enter the mine loading and weighing area, thereby improving the security of this area.

Can transmit information over long distances

Remote control and group control can be carried out to make the system truly automatic and intelligent, and can be networked with computers to automatically analyze, calculate and print data records and reports.

Information collection automation

The weighing data output by the automobile weighing instrument and the electronic tag card number installed on the mining truck are processed by the relevant equipment and then transmitted to the computer. The computer displays the weight of the cargo carried by this car and stores it in the computer's database. Users can perform operations such as querying, summarizing, and printing as required, thus realizing the automation of information collection.