[0003] In terms of fuel dispenser products, the fuel dispensers generally produced and sold by fuel dispenser manufacturers in the world are controlled by computers and displayed on computer screens. The computer part basically consists of three parts: a computer box, a fixed keyboard and a monitor. Partly, in terms of the use and operation of fuel dispensers in various gas stations in various countries, when a certain fuel dispenser needs to be used, the gas station manager (or refueling staff) inserts the computer control key equipped with this fuel dispenser into the keyboard Key hole, start the fuel dispenser in standby mode, adjust the unit price and other parameters, and actually use the fuel dispenser to refuel fuel vehicles, lift the fuel gun, and then set the number of liters (or amount) of fuel that needs to be refilled this time through the keyboard , down, insert the nozzle of the fuel gun into the fuel tank and press the switch of the fuel gun to start refueling; or another way is to directly insert the nozzle of the fuel gun into the fuel tank and press the switch of the fuel gun without pre-setting the number of liters (or amount) of fuel to be filled Start refueling. When the oil level of the fuel tank rises and touches the sensing position of the nozzle of the oil gun, the oil gun switch will automatically trigger to stop refueling. However, this operation method has certain disadvantages. One aspect is that when the fuel dispenser is in the standby state , whether it is a refueling staff at a gas station, or a customer, or other idle people who come to the gas station, they can operate the refueling machine at any time. Customers (drivers) who are refueling are more familiar with the process and method of using the refueling machine, and can complete the entire refueling process correctly and safely, but those who are not familiar with the operating process and essentials of the refueling machine may It will happen that the nozzle of the oil gun is not inserted into the fuel tank correctly, and the oil gun switch is pressed to make the fuel flow out, which will not only cause waste and pollute the environment of the gas station, but also cause fire or other accidents because the flammable materials are spilled on the ground; What's more, when someone has the intention of causing malicious damage or creating chaos, he will come to the fuel tanker himself, lift the oil gun and press the switch to spray fuel, causing panic to the gas station staff and the surroundings, in case they deliberately ignite can have quite dangerous consequences.
Another disadvantage is that no matter who the fueler is in the gas station, when the fueler is in the standby state, he can operate each fueler at will, so there is also some confusion in the internal management of the gas station. First, the workload of each refueler is not easy to count and assess, and second, it is not easy to count the operators corresponding to each refueling data of each refueling machine for motor vehicles that come to refuel. When there is an error in the refueling data of the refueling machine, or when a customer pays the refueler directly in cash, but the refueler fails to transfer the money to the financial personnel in the hall for registration in time, it is inconvenient to check the responsible personnel, and it may be in the refueling Mutual suspicion among the personnel inside the gas station increases the difficulty of management of the personnel inside the gas station
Another disadvantage is that in order to manage each fuel dispenser, count and store refueling data, as well as the workload and working hours of each fuel dispenser, the gas station needs to be equipped with a background management system, which connects the background management system and each fuel dispenser through The data lines are connected to achieve the purpose of managing and controlling each tanker and counting the workload and working hours of each tanker. This not only requires high management costs, but also makes daily maintenance difficult. Even when the background management system is poisoned or malfunctions, If the data is lost and the tax department cannot collect data on schedule, it will bring a lot of trouble to the gas station. What's more, when the background management system is hacked or crashes due to a malfunction, the fuel dispensers at the gas station will be unable to to command not working