Electronic Counter of Fuel Dispenser

Blue Sky applied to the China National Patent Office for an ultra-low-power intelligent electronic counter patent technology.
The counter is one of the essential parts of the fuel dispenser, and most the traditional counter is the mechanical counter.

Electronic counter of fuel dispenser
The working principle of the mechanical counter is used to drive the number of connected parts to guide the number of connected parts, which has led to the increased consumption of the product in some aspects and the disadvantages of the high heat of objects. It has a greater impact on the standby time.
In order to effectively solve these problems, the Blue Sky design team has designed an ultra-low-power digital electronic counter based on the STM8L152C6T6 chip.

The electronic counter uses an LCD display, a variety of low-power consumption modes, and quick wake-up to achieve ultra-low power consumption; the design uses an STM8L152C6T6 single-chip microcomputer as the core of the controller. Time counts the increase or decrease, and after calculating, the single-chip machine enters a low-power standby, so that the cycle reaches ultra-low consumption;
Through related debugging, the digital counter successfully implemented the function of design and has the value of promotion and use.
A digital electronic counter is an electronic counting device that is used more in actual life, and can easily obtain unit measurements.
The design team starts from the ordinary counter’s counting function, adjusts the single-chip machine’s operating mode, analyzes the design task, and divides the task into several modules to formulate the design hardware circuit and software process.
Finally, an ultra-low-power digital counter is designed, which reduces the system consumption in the original basic counting function, thereby achieving a long-term standby display.

This is a circuit principle diagram:

Electronic counter of some circuit principle diagram

1. A  ultra-low power consumption smart electronic counter, including single -chip microcomputer, power circuit, and electronic display screens, which are characterized by: also include pulse hair circuit, which include resistance R6, resistance R14, resistor R20, diode D5, diode D6 , One end of the resistance R6 is used to receive pulse signals, the other end of the resistor R6 is connected to the negative electrode connection of the diode D5, the positive pole of the diode D5 is connected with the one end of the resistor R14, the other end of the resistor R14 is grounded, the power circuit of the one end of the resistor R20, the resistance circuit, the resistor The other end of the R20 is connected to the positive electrode of the diode D6, the negative electrode of the diode D6 is connected to the ahead of the diode D5, and the positive pole of the diode D6 is connected to the single -chip microcomputer.

2. A ultra-low -power intelligent electronic counter according to claim 1, is characterized by: The single-chip microcomputer uses STM8L152C6T6.

3. A ultra-low -power intelligent electronic counter according to claim 1, is characterized by: the electronic display using an LCD display.

4. A ultra-low -power intelligent electronic counter according to claim 1, is characterized by: The single-chip machine has a data transmission interface SWIM.

5. A ultra-low -power intelligent electronic counter according to claim 1, is characterized by: the power supply circuit includes batteries, first conversion circuits, second conversion circuits, and charging circuits. The first conversion circuit is used to receive it to receive The pulse signal is generated and a constant voltage is generated. The charging circuit is used to receive the constant voltage generated by the first conversion circuit and charge the battery. Essence

6. A ultra-low -power intelligent electronic counter according to claim 5, is characterized by: the first conversion circuit includes a three-terminal fixed regulator U1, capacitor C1, and capacitance C2. The VIN end of the pressure device U1 is connected to the one end of the capacitor C1, and the VIN end of the three-terminal fixing voltage regulator U1 is used to receive the pulse signal. The VOUT terminal of the fixed regulator U1 is used to output a constant voltage, which is grounded by the GND end of the three-terminal fixing regulator U1, the other end of the capacitor C1, and the other end of the capacitor C2.

7. A ultra-low -power intelligent electronic counter according to claim 5, is characterized by: the second conversion circuit that includes a three-terminal fixed regulator U2, capacitor C3, and capacitor C4. The VIN end of the pressure device U2 is connected to the one end of the capacitor C3, and the VIN terminal of the three-terminal fixing voltage regulator U2 is used to receive the battery output voltage. The VOUT terminal of the end fixing regulator U2 is used to output a constant voltage. The GND terminal of the three-terminal fixing regulator U2, the other end of the capacitor C3, and the other end of the capacitor C4 are grounded respectively.

8. A ultra-low -power intelligent electronic counter according to claim 5, is characterized by: also includes a protective circuit that includes a protective circuit that includes NMOS tube Q1, resistance R2, resistance R9, and resistance R12. The leakage of the NMOS tube is connected to one end of the resistor R2, and the other end of the resistor R2 is used to receive the battery output voltage. The grid of the tube is connected to one end of the resistor R9, which is used to receive pulse signals on the other end of the resistor R9.

The ultra-low-power intelligent electronic counter was realized, which effectively solved many problems, and it was also a small step in the development of fuel dispensers.

blue sky fuel dispenser

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