Exploration of Anti Cheating Strategies for Electronic Weighscales

Exploration of Anti Cheating Strategies for Electronic Weighscales

1、 Common cheating methods for weighing scales

There are several methods for cheating on weighing scales, including:

1. Multiple vehicles are weighed simultaneously or incompletely to achieve the purpose of increasing or decreasing the weight of goods;

During the loading and unloading process, changing the type of goods and profiting from the price difference;

3. Impersonate others or units to extract goods;

4. Add or reduce weight before and after weighing the vehicle to achieve the purpose of adjusting the net weight of the goods;

5. Adjust the net weight of the vehicle by changing the license plate during weighing, in order to increase or decrease the net weight of the goods;

6. Add supports between the foundation and the bearing platform, or place steel plates between the approach bridge and the weighing platform;

7. The car driver colluded with the weighbridge staff internally and externally to arbitrarily increase the net weight of the goods.

Electronic weighing scale cheating mainly involves using wired or wireless remote control devices to modify or control instrument data, and changing the parameters displayed on the weighing scale by interfering with the use of devices. Through analysis, the common method of cheating on weighing scales at present is using a remote control, so we should prioritize preventing such cheating incidents. This cheating device is usually installed in the junction box, signal cable, and weighing display instrument of the weighing sensor. Its main working principle is to connect a resistor in series in the signal cable inside the weighing sensor to reduce the output signal and achieve the purpose of displaying weight on the instrument. Although the signal cables of electronic weighing sensors are protected by conduit, there are still some exposed parts. Criminals peel off the outer skin of these exposed signal cables and connect the remote control receiving device to the signal line. After installing the cheating device, unless modified with a remote control, it will not affect the normal use of the electronic weighing scale at any other time. Therefore, this cheating method has a certain degree of concealment and a low probability of being discovered. This is the common cheating method of electronic weighing scales and the reason why this method has a low probability of being discovered.

2、 The main anti cheating strategies for electronic weighing scales

After analyzing the cheating methods of electronic weighing scales, we should summarize targeted anti cheating strategies. In addition to strengthening daily management, the following methods should also be adopted:

1. Enhance the sense of ownership and responsibility among staff, and improve weighing efficiency and accuracy through strengthened management;

2. Strengthen the inspection frequency of symmetrical weight sensor signal cables, especially for signal cables outside the bare building, consider using stainless steel hoses or plastic wrapped hoses for protection to prevent them from being connected to remote control devices due to exposed signal cables;

3. Try to use digital weighing scales, which use digital communication technology. Due to the different communication protocols adopted by various manufacturers, if criminals want to cheat on signal transmission, they need to decipher the manufacturer's communication protocol, which greatly improves their performance. The fact also shows that it is difficult for criminals to cheat on this type of weighing scale.

At present, the vast majority of weighing software can only weigh vehicles and query weighing data, without the function of preventing and handling cheating and vulnerabilities. Therefore, it is necessary to design intelligent weighing systems to facilitate stricter monitoring and management of the weighing process. These systems not only need to be able to automatically read weighing data from the weighbridge, but also have the function of strictly protecting data and prohibiting others from modifying it. All management personnel can view and manage weighing measurement data in real time through the system platform. Once there is a phenomenon of private transactions, illegal operations, incomplete vehicle weighing, repeated weighing, or illegal use of remote control between the weighbridge operator and the driver, the system can automatically detect it and issue an alarm to the management personnel for timely investigation and punishment.

5. Adopting an unmanned electronic weighing system, automatic computer recording and management are achieved. The driver does not need to get off the car, and the entire process is automatically captured by the monitoring system, which is connected to the local area network. After weighing is completed, the driver can receive the weighing sheet at the enterprise access control, eliminating communication between the driver and the weighing personnel and to some extent curbing cheating behavior.

6. Adopting a "one card" logistics management system, which restricts vehicle license plate replacement by pasting RFID cards on each car, can better carry out vehicle management work. Once the IC card is torn off, it cannot be used again, which to some extent solves the problem of cheating by changing license plates. In addition, it is necessary to add corresponding infrared reflecting devices, which can prevent the simultaneous weighing and incomplete weighing of multiple vehicles after installation. Once the distance between the front and rear vehicles is too close or the weighing vehicle is not parked properly, the system will automatically issue an alarm to prompt the driver to stop again until the weighing requirements are met.

conclusion

In summary, with the advancement of science and technology, more and more weighing techniques have emerged. However, criminals have also developed more and more cheating methods, which have higher technicality and stronger concealment. Therefore, the current situation of electronic weighing scale fraud prevention is becoming increasingly severe. Therefore, we need to reduce the economic losses of enterprises, promote fair trade, and contribute to the harmonious development of society by persistently learning technology, continuously strengthening enterprise management, and improving weighing levels.