Metering accuracy judgment system for oiling machine

Abstract

The invention relates to an oiling machine metering accuracy judging system which comprises a main control integrated circuit, an original pulse collecting circuit, an analog pulse output circuit, a Bluetooth circuit, an LED display circuit and a voltage stabilizing integrated circuit. The original pulse collecting circuit, the LED display electric quantity and the voltage stabilizing integrated circuit are all connected with the input end of the main control integrated circuit; the Bluetooth circuit and the analog pulse output circuit are both connected with the output end of the master control integrated circuit, the input end of the original pulse acquisition circuit is connected with the encoder, and the output end of the analog pulse output circuit is connected with the oil engine mainboard; the original pulse acquisition circuit is used for detecting the original pulse of the encoder during refueling; the analog pulse output circuit is used for increasing or monitoring the pulse quantity output to the oil engine mainboard so as to detect the anti-cheating function of the oil engine mainboard; the LED display circuit is used for indicating the working state of each circuit; and the voltage stabilizing integrated circuit is used for providing required voltage for each circuit and ensuring stable operation of each circuit. By the adoption of the technical scheme, the oiling machine metering accuracy judgment system can accurately judge oiling metering, and cheating is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel dispensers, and in particular to a fuel dispenser metering accuracy judgment system. Background Art

[0002] With the rapid development of the economy, the domestic consumption of refined oil has been increasing year by year. In addition to the function of refueling, fuel dispensers also play a role in charging. In the daily management of gas stations, the metering accuracy of fuel dispensers has attracted social attention. Whether the metering is accurate or not directly affects the vital interests of gas stations and consumers, and is also the focus of attention of quality supervision departments. Therefore, it is necessary to accurately measure the metering accuracy of fuel dispensers to avoid problems such as cheating. Summary of the Invention

[0003] Objective of the present invention: In order to overcome the defects of the prior art, the present invention provides a fuel dispenser metering accuracy judgment system, which can accurately judge fueling metering and avoid cheating.

[0004] Technical solution of the present invention: A fuel dispenser metering accuracy judgment system includes a main control integrated circuit, an original pulse acquisition circuit, an analog pulse output circuit, a Bluetooth circuit, an LED display circuit, and a voltage stabilizing integrated circuit. The original pulse acquisition circuit, the LED display power, and the voltage stabilizing integrated circuit are all connected to the input end of the main control integrated circuit. The Bluetooth circuit and the analog pulse output circuit are both connected to the output end of the main control integrated circuit. The input end of the original pulse acquisition circuit is connected to an encoder, and the output end of the analog pulse output circuit is connected to the fuel dispenser main board, where; The original pulse acquisition circuit detects the original pulses of the encoder during refueling; The analog pulse output circuit increases or monitors the pulse quantity output to the fuel dispenser main board to detect the anti-cheating function of the fuel dispenser main board; The Bluetooth module is used to pair and connect with an external handheld device for easy data query; The LED display circuit is used to indicate the working status of each part of the circuit; The voltage stabilizing integrated circuit provides the required voltage for each circuit to ensure the stable operation of each circuit.

[0005] Further setting: The main control integrated circuit includes a main control module, resistor R3, resistor R6, resistor R9, resistor R10, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C10, capacitor C11, capacitor C12, and crystal Y1. Both ends of the crystal Y1 and resistor R9 are connected to the main control module. One end of capacitors C11 and C12 is connected to resistor R9, and the other end is grounded. Capacitors C5, C6, C7, and C8 are connected in parallel, and one end is connected to one end of resistor R3, and the other end is grounded. The other end of resistor R3 is connected to the main control module. Capacitors C9 and C10 are connected in parallel, and one end is connected to the main control module, and the other end is grounded. One end of resistor R6 is connected to capacitor C9, and the other end is connected to the power supply. One end of resistor R10 is connected to the main control module, and the other end is grounded.

[0006] Further setting: The original pulse acquisition circuit includes optocoupler switches O1, O2, resistor R17, resistor R18, resistor R19, and resistor R20. One end of optocoupler switch O1 is connected to resistor R17 and the encoder. The other end of optocoupler switch O1 is connected to the main control module via resistor R18. The other end of resistor R17 is connected to the encoder. One end of optocoupler switch O2 is connected to resistor R19 and the encoder. The other end of optocoupler switch O2 is connected to the main control module via resistor R20. The other end of resistor R19 is connected to resistor R17.

[0007] Further setting: The analog pulse output circuit includes optocoupler switches O3, O4, resistor R21, and resistor R22. One end of optocoupler switches O3 and O4 is connected to the diesel engine main board. The other ends of optocoupler switches O3 and O4 are connected to resistor R21 and resistor R22 and the main control module.

[0008] Further setting: The Bluetooth module includes a Bluetooth module and a communication indicator module, an indicator status module, capacitor C15, capacitor C16, crystal Y2, resistor R23, and resistor R24 connected to the Bluetooth module. The Bluetooth module is connected to the main control module. The communication indicator module includes resistors R4, R5, R7, R8, LED3, and LED4. Both ends of resistor R5 are respectively connected to both ends of LED3. Both ends of resistor R8 are respectively connected to both ends of LED4. One end of resistor R4 is connected to LED3. One end of resistor R7 is connected to LED4. The other ends of LED3 and LED4 are both connected to the Bluetooth module. The indicator status module includes LED5 and resistor R15. One end of LED5 is connected to the Bluetooth module, and the other end is connected to one end of resistor R15. The other end of resistor R15 is grounded.

[0009] Further setting: The LED display circuit includes LED1 and resistor R2. Both ends of LED1 are respectively connected to the main control module and resistor R2.

[0010] Further setting: The voltage stabilizing integrated circuit includes a voltage stabilizing module, a resistor R1, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, and an LED2. One end of the capacitor C1 and the capacitor C2 is connected to the input end of the voltage stabilizing module, and the other end is grounded. One end of the capacitor C3 and the capacitor C4 is connected to the output end of the voltage stabilizing module, and the other end is connected to the LED2. One end of the resistor R1 is connected to the LED2, and the other end is connected to the output end of the voltage stabilizing module.

[0011] With the above technical solution, the original pulses and the actual output pulses of the encoder during fuel dispenser refueling are detected, and the pulse coefficients are compared to determine whether the measurement is accurate, achieving accurate measurement of the fuel filling volume, greatly improving the accuracy of measurement, and avoiding cheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the circuit block diagram of the specific embodiment of the present invention; Figure 2 is the circuit diagram of the main control circuit of the specific embodiment of the present invention; Figure 3 It is the circuit diagram of the Bluetooth module of the specific embodiment of the present invention; Figure 4 It is the circuit diagram of the communication indicator module of the specific embodiment of the present invention; Figure 5 It is the circuit diagram of the indicator status module of the specific embodiment of the present invention; Figure 6 It is the circuit diagram of the LED display module of the specific embodiment of the present invention; Figure 7 It is the circuit diagram of the original pulse acquisition circuit of the specific embodiment of the present invention; Figure 8 It is the circuit diagram of the analog pulse output circuit of the specific embodiment of the present invention; Figure 9 It is the circuit diagram of the voltage stabilizing integrated circuit of the specific embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] Next, the technical solutions in this embodiment will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0014] Such as Figures 1-9As shown in the figure, a fuel dispenser metering accuracy judgment system includes a main control integrated circuit, an original pulse acquisition circuit, an analog pulse output circuit, a Bluetooth circuit, an LED display circuit, and a voltage stabilization integrated circuit. The original pulse acquisition circuit, the LED display power supply, and the voltage stabilization integrated circuit are all connected to the input end of the main control integrated circuit. The Bluetooth circuit and the analog pulse output circuit are both connected to the output end of the main control integrated circuit. The input end of the original pulse acquisition circuit is connected to an encoder, and the output end of the analog pulse output circuit is connected to the fuel dispenser main board. Among them; The original pulse acquisition circuit detects the original pulses of the encoder during refueling. The analog pulse output circuit increases or monitors the pulse quantity output to the fuel dispenser main board to detect the anti-cheating function of the fuel dispenser main board. The external handheld device sets the pulse coefficient through the Bluetooth interface and compares the set original pulse coefficient with the pulses output to the fuel dispenser main board to detect whether the anti-cheating function of the fuel dispenser main board is normally started. The Bluetooth module is used to pair and connect with external handheld devices for easy data query. Specifically, the handheld device searches for the Bluetooth address of the Bluetooth module for pairing and connection for data transmission. The handheld device can be a mobile phone, etc. The LED display circuit is used to indicate the working status of each part of the circuit. The voltage stabilization integrated circuit provides the required voltage for each circuit to ensure the stable operation of each circuit.

[0015] Further, the main control integrated circuit includes a main control module, resistor R3, resistor R6, resistor R9, resistor R10, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C10, capacitor C11, capacitor C12, and crystal Y1. The main control module uses STM32F103C8T6. Both ends of the crystal Y1 and resistor R9 are connected to the main control module. One end of capacitor C11 and capacitor C12 is connected to resistor R9, and the other end is grounded. Capacitors C5, C6, C7, and C8 are connected in parallel, and one end is connected to one end of resistor R3, and the other end is grounded. The other end of resistor R3 is connected to the main control module. Capacitors C9 and C10 are connected in parallel, and one end is connected to the main control module, and the other end is grounded. One end of resistor R6 is connected to capacitor C9, and the other end is connected to the power supply. One end of resistor R10 is connected to the main control module, and the other end is grounded.

[0016] Further setting, the original pulse acquisition circuit includes an optocoupler switch O1, an optocoupler switch O2, a resistor R17, a resistor R18, a resistor R19, and a resistor R20. One end of the optocoupler switch O1 is connected to the resistor R17 and the encoder. The other end of the optocoupler switch O1 is connected to the main control module via the resistor R18. The other end of the resistor R17 is connected to the encoder. One end of the optocoupler switch O2 is connected to the resistor R19 and the encoder. The other end of the optocoupler switch O2 is connected to the main control module via the resistor R20. The other end of the resistor R19 is connected to the resistor R17. The P1S1 of the optocoupler switch O1 and the P1S2 of the optocoupler switch O2 are respectively connected to the P1S1 and P1S2 of the main control module.

[0017] Further setting, the analog pulse output circuit includes an optocoupler switch O3, an optocoupler switch O4, a resistor R21, and a resistor R22. One ends of the optocoupler switch O3 and the optocoupler switch O4 are connected to the main board of the oil engine. The other ends of the optocoupler switch O3 and the optocoupler switch O4 are connected to the resistor R21, the resistor R22, and the main control module. The P2S1 of the optocoupler switch O3 and the P2S2 of the optocoupler switch O4 are respectively connected to the P2S1 and P2S2 of the main control module.

[0018] Further setting, the Bluetooth module includes a Bluetooth module and a communication indicator light module, an indicator light status module, a capacitor C15, a capacitor C16, a crystal Y2, a resistor R23, and a resistor R24 connected to the Bluetooth module. The Bluetooth module uses ECB02C. The Bluetooth module is connected to the main control module. The USART1_TX and USART1_RX of the Bluetooth module are connected to the USART1_TX and USART1_RX of the main control module. The communication indicator light module includes a resistor R4, a resistor R5, a resistor R7, a resistor R8, an LED3, and an LED4. Both ends of the resistor R5 are respectively connected to both ends of the LED3. Both ends of the resistor R8 are respectively connected to both ends of the LED4. One end of the resistor R4 is connected to the LED3. One end of the resistor R7 is connected to the LED4. The other ends of the LED3 and the LED4 are both connected to the Bluetooth module. The indicator light status module includes an LED5 and a resistor R15. One end of the LED5 is connected to the Bluetooth module, and the other end is connected to one end of the resistor R15. The other end of the resistor R15 is grounded.

[0019] Further setting, the LED display circuit includes an LED1 and a resistor R2. Both ends of the LED1 are respectively connected to the main control module and the resistor R2.

[0020] Further setting, the voltage stabilizing integrated circuit includes a voltage stabilizing module, a resistor R1, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, and an LED2. One ends of the capacitor C1 and the capacitor C2 are connected to the input end of the voltage stabilizing module, and the other ends are grounded. One ends of the capacitor C3 and the capacitor C4 are connected to the output end of the voltage stabilizing module, and the other ends are connected to the LED2. One end of the resistor R1 is connected to the LED2, and the other end is connected to the output end of the voltage stabilizing module.

[0021] Adopting the above technical solution, the original pulses of the encoder and the actual output pulses during fuel dispenser refueling are detected, and the pulse coefficients are compared to determine whether the measurement is accurate, achieving accurate measurement of the fuel filling volume, greatly improving the measurement accuracy, and avoiding cheating phenomena.

Claims

1. A fuel dispenser metering accuracy judgment system, characterized in that, It includes a main control integrated circuit, an original pulse acquisition circuit, an analog pulse output circuit, a Bluetooth circuit, an LED display circuit, and a voltage stabilization integrated circuit. The original pulse acquisition circuit, the LED display for power, and the voltage stabilization integrated circuit are all connected to the input terminal of the main control integrated circuit. The Bluetooth circuit and the analog pulse output circuit are both connected to the output terminal of the main control integrated circuit. The input terminal of the original pulse acquisition circuit is connected to an encoder, and the output terminal of the analog pulse output circuit is connected to the main board of the oil engine. Among them; The original pulse acquisition circuit detects the original pulses of the encoder during refueling; The analog pulse output circuit increases or monitors the pulse quantity output to the main board of the oil engine to detect the anti-cheating function of the main board of the oil engine; The Bluetooth module is used to pair and connect with an external handheld device for easy data query; The LED display circuit is used to indicate the working status of each part of the circuit; The voltage stabilization integrated circuit provides the required voltage for each circuit to ensure the stable operation of each circuit.

2. The fuel dispenser metering accuracy judgment system according to claim 1, wherein The main control integrated circuit includes a main control module, resistor R3, resistor R6, resistor R9, resistor R10, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C10, capacitor C11, capacitor C12, and crystal Y1. Both ends of the crystal Y1 and resistor R9 are connected to the main control module. One end of capacitor C11 and capacitor C12 is connected to resistor R9, and the other end is grounded. Capacitor C5, capacitor C6, capacitor C7, and capacitor C8 are connected in parallel, and one end is connected to one end of resistor R3, and the other end is grounded. The other end of resistor R3 is connected to the main control module. Capacitor C9 and capacitor C10 are connected in parallel, and one end is connected to the main control module, and the other end is grounded. One end of resistor R6 is connected to capacitor C9, and the other end is connected to the power supply. One end of resistor R10 is connected to the main control module, and the other end is grounded.

3. The fuel dispenser metering accuracy judgment system according to claim 2, characterized in that, The original pulse acquisition circuit includes optocoupler switches O1, O2, resistor R17, resistor R18, resistor R19, and resistor R20. One end of optocoupler switch O1 is connected to resistor R17 and the encoder. The other end of optocoupler switch O1 is connected to the main control module through resistor R18. The other end of resistor R17 is connected to the encoder. One end of optocoupler switch O2 is connected to resistor R19 and the encoder. The other end of optocoupler switch O2 is connected to the main control module through resistor R20. The other end of resistor R19 is connected to resistor R17.

4. The fuel dispenser metering accuracy judgment system according to claim 2 or 3, characterized in that, The analog pulse output circuit includes optocoupler switches O3, O4, resistor R21, and resistor R22. One end of optocoupler switches O3 and O4 is connected to the main board of the oil engine, and the other end of optocoupler switches O3 and O4 is connected to resistor R21 and resistor R22 and to the main control module.

5. The fuel dispenser metering accuracy judgment system according to claim 2, wherein The Bluetooth module includes a Bluetooth module and a communication indicator module, an indicator status module, capacitor C15, capacitor C16, crystal Y2, resistor R23, and resistor R24 connected to the Bluetooth module. The Bluetooth module is connected to the main control module. The communication indicator module includes resistor R4, resistor R5, resistor R7, resistor R8, LED3, and LED4. Both ends of resistor R5 are respectively connected to both ends of LED3, both ends of resistor R8 are respectively connected to both ends of LED4, one end of resistor R4 is connected to LED3, one end of resistor R7 is connected to LED4, and the other ends of LED3 and LED4 are both connected to the Bluetooth module. The indicator status module includes LED5 and resistor R15. One end of LED5 is connected to the Bluetooth module, and the other end is connected to one end of resistor R15. The other end of resistor R15 is grounded.

6. The fuel dispenser metering accuracy judgment system according to claim 2, characterized in that, The LED display circuit includes LED1 and resistor R2. Both ends of LED1 are respectively connected to the main control module and resistor R2.

7. The fuel dispenser metering accuracy judgment system according to claim 2, wherein The voltage regulator integrated circuit includes a voltage regulator module, resistor R1, capacitor C1, capacitor C2, capacitor C3, capacitor C4, and LED2. One end of capacitor C1 and capacitor C2 is connected to the input end of the voltage regulator module, and the other end is grounded. One end of capacitor C3 and capacitor C4 is connected to the output end of the voltage regulator module, and the other end is connected to LED2. One end of resistor R1 is connected to LED2, and the other end is connected to the output end of the voltage regulator module.

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