Processing method of non-metering data in metering system
The technology of a metering system and processing method, which is applied in the field of non-metering data processing, can solve problems such as the problem that cheating cannot be completely prevented.
Active Publication Date: 2017-11-07
BEIJING TOCEL ELECTRONICS
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Problems solved by technology
Since the non-consumption data sent by the metering system are directly sent to the display screen for display, the non-consumption data command can be used to deceive the monitoring system, and the modified non-consumption data will be displayed on the display screen as consumption data. This kind of cheating cannot play a monitoring role, and cannot completely prevent the occurrence of cheating problems
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Embodiment Construction
[0019] Embodiments of the present invention will be described below with reference to the drawings. figure 1 A block diagram of a monitoring system that monitors non-consumption data in a fuel dispenser at a gas station.
[0020] The monitoring system 3 is arranged between the fuel metering system 1 and the fuel display device 2 . The refueling metering system 1 sends consumption data and non-consumption data to the monitoring system 3 through different commands. The consumption data is the measurement data (refueling data) when the gun is refueled, and the non-consumption data is the data when the tanker is not refueling. Displays real-time information on fuel dispenser status, etc. The consumption data is the measurement data related to the refueling quantity during the refueling process, which has the characteristics of continuous change, while the non-consumption data has nothing to do with the refueling quantity and does not have the characteristics of continuous change....
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The invention relates to a method for processing non-metering data in a metering system. The method comprises the steps that 10) zero clearing is carried out on buffers, and a timer is set; 20) non-consumption data is read and registered in the first buffer; 30) data in the first buffer is compared with that of the second buffer; 40) if the data in the first buffer is the same with that of the second buffer, a step 50) is moved, and otherwise, a step 60) is moved to; 50) data in the first or second buffer is pushed to a display device for display; 60) data in the first buffer is copied and registered in the second buffer, and accumulation is carried out on the counter; 70) whether a counting value is greater than or equivalent to a prescribed value A is determined, is yes, a step 100) is moved to, and otherwise, a step 80) is moved to; 80) whether a set time of the timer is reached is determined, if no, a step 90) is moved to, and otherwise, a step 110) is moved; 90) an oiling display device displays the non-consumption data; 100) error information is displayed; and 110) the counter is cleared, and the timer is re-started to return to the step 20).
Description
technical field [0001] The invention relates to a method for processing non-metered data in a metering system. Background technique [0002] Metering systems, such as fuel dispensers at gas stations, need to be monitored. In order to prevent cheating and protect the interests of consumers, the metering data, that is, the consumption data, is usually encrypted to ensure the correctness of the consumption data display. As for the non-metering data sent by the metering system, such as non-consumption data such as the fuel dispenser in the non-refueling state, the state of the fuel dispenser is displayed, etc., it is not processed and directly sent to the display screen for display. Since the non-consumption data sent by the metering system are directly sent to the display screen for display, the non-consumption data command can be used to deceive the monitoring system, and the modified non-consumption data will be displayed on the display screen as consumption data. This kind ...
Claims
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IPC IPC(8): G05B19/04
CPCG05B19/04
Inventor 崔良金金云山
Owner BEIJING TOCEL ELECTRONICS