Electronic intelligent instrument

Abstract

An electronic intelligent instrument comprises a flow testing module, an MCU core control unit and a stepping motor, the flow testing module is connected with the MCU core control unit, and the stepping motor is connected with the MCU core control unit. The stepping motor comprises a rotor, and the rotor comprises a rotor gear; the system also comprises four digital gears, the rotor gear is connected with the digital gears, and the system also comprises four light-emitting tubes and four receiving tubes which are connected with the MCU core control unit. The light-emitting tubes and the receiving tubes are located above and below the digital gears respectively, and light passing holes are formed in the positions, corresponding to light channels of the light-emitting tubes and the receiving tubes, of the digital gears. The MCU core control unit drives the stepping motor to rotate, and then the stepping motor drives the digital gear to rotate so as to drive the display device to rotate and display the flow; the light-emitting tube and the receiving tube are used for judging the position of the digital gear, and the flow displayed by the intelligent instrument is synchronous with the flow measured and calculated by the MCU core control unit.

Description

Technical Field

[0001] This invention is a novel electronic intelligent instrument. Background Technology

[0002] There is a type of electronic smart water meter on the market, such as Figure 1 As shown, it includes a flow test module 101, an MCU core control unit 102, and an LCD display 103. The flow test module 101 is connected to the MCU core control unit 102, and the MCU core control unit 102 is connected to the LCD display 103. The MCU core control unit 102 tests and calculates the flow rate through the water meter using the flow test module 101, and then displays the flow rate through the LCD display 103. The MCU core control unit of this water meter, through the flow test module, can accurately measure and calculate the water flow rate through the water meter, and then display the accurate cubic volume of water used on the LCD display. The disadvantages are: the LCD display has high viewing angle requirements, making it inconvenient to read; if the water meter loses power or the LCD display malfunctions, the reading cannot be obtained, causing inconvenience to the user. Summary of the Invention

[0003] In order to overcome the shortcomings of existing technical solutions, the present invention provides a novel electronic intelligent instrument.

[0004] The technical solution adopted by the present invention to solve its technical problem is: an electronic intelligent meter, which includes a flow testing module and an MCU core control unit, wherein the flow testing module is connected to the MCU core control unit, characterized in that: it further includes a stepper motor and a first digital gear, wherein the stepper motor is connected to the MCU core control unit; the stepper motor includes a rotor, wherein the rotor includes a rotor gear; and the rotor gear is connected to the first digital gear.

[0005] Furthermore, it also includes a first light-emitting diode and a first receiving diode, which are connected to the MCU core control unit.

[0006] Furthermore, the first light-emitting tube and the first receiving tube are located above and below the first digital gear, respectively, and the first digital gear has a light-transmitting hole at the light channel corresponding to the first light-emitting tube and the first receiving tube.

[0007] Furthermore, it also includes a first guide wheel and a second digital gear, wherein the first guide wheel is connected to the first digital gear and simultaneously connected to the second digital gear.

[0008] Furthermore, it also includes a second light-emitting diode and a second receiving diode, which are connected to the MCU core control unit; the second light-emitting diode and the second receiving diode are respectively located above and below the second digital gear, and the second digital gear has a light-transmitting hole at the light channel corresponding to the second light-emitting diode and the second receiving diode.

[0009] Furthermore, it also includes a second intermediate gear and a third digital gear, wherein the second intermediate gear is connected to the second digital gear and simultaneously connected to the third digital gear.

[0010] Furthermore, it also includes a third light-emitting diode and a third receiving diode, which are connected to the MCU core control unit; the third light-emitting diode and the third receiving diode are respectively located above and below the third digital gear, and the third digital gear has a light-transmitting hole at the light channel corresponding to the third light-emitting diode and the third receiving diode.

[0011] Furthermore, it also includes a third guide wheel and a fourth digital gear. The third guide wheel is connected to the third digital gear and simultaneously connected to the fourth digital gear. It also includes a fourth light-emitting diode and a fourth receiving diode. The fourth light-emitting diode and the fourth receiving diode are connected to the MCU core control unit. The fourth light-emitting diode and the fourth receiving diode are located above and below the fourth digital gear, respectively. The fourth digital gear has a light-transmitting hole at the light channel corresponding to the fourth light-emitting diode and the fourth receiving diode.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the addition of a stepper motor, which is driven by the MCU core control unit to rotate, and the stepper motor then drives the digital gear to rotate, thereby driving the display device to rotate and display the flow rate; at the same time, the addition of a light-emitting diode and a receiving diode is used to determine whether the position of the digital gear is correct, ensuring that the displayed flow rate is automatically synchronized with the flow rate accurately measured by the MCU core control unit, thereby achieving the purpose of the present invention. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the existing technology.

[0014] Figure 2 This is a schematic diagram of the structure of the present invention.

[0015] Figure 3 This is a schematic diagram of the scale, pointer, and liquid crystal display screen in an embodiment of the present invention.

[0016] Figure 4 This is a schematic diagram of the structure of the first light-emitting diode, the first receiving diode, and the first digital gear in an embodiment of the present invention.

[0017] Figure 5 This is a schematic diagram of the first digital gear structure according to an embodiment of the present invention.

[0018] Figure 6 This is a schematic diagram of the second light-emitting diode, the second receiving diode, and the second digital gear structure according to an embodiment of the present invention.

[0019] Figure 7 This is a schematic diagram of the second digital gear structure according to an embodiment of the present invention.

[0020] Figure 8 This is a schematic diagram of the third light-emitting diode, the third receiving diode, and the third digital gear structure in an embodiment of the present invention.

[0021] Figure 9 This is a schematic diagram of the third digital gear structure according to an embodiment of the present invention.

[0022] Figure 10 This is a schematic diagram of the fourth light-emitting diode, the fourth receiving diode, and the fourth digital gear structure according to an embodiment of the present invention.

[0023] Figure 11 This is a schematic diagram of the fourth digital gear structure according to an embodiment of the present invention. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] from Figure 2 It can be seen that it includes a flow test module 1 and an MCU core control unit 2, with the flow test module 1 connected to the MCU core control unit 2; it also includes an LCD screen 3, with the MCU core control unit 2 connected to the LCD screen 3; it further includes a stepper motor 4 and a first digital gear 6, with the stepper motor 4 connected to the MCU core control unit 2; the stepper motor 4 includes a rotor 41, with a rotor gear 42 on the rotor 41; the rotor gear 42 is connected to the first digital gear 6; it also includes a first pointer 61, which is fixedly connected to the first digital gear 6; it further includes a first light-emitting diode 11 and a first receiving diode 12, with the first light-emitting diode 11 and the first receiving diode 12 connected to the MCU core control unit 2; from Figure 4 It can be seen that the first light-emitting tube 11 and the first receiving tube 12 are located above and below the first digital gear 6, respectively. Figure 4 , Figure 5 It can be seen that the first digital gear 6 has a light-transmitting hole 62 at the light channel corresponding to the first light-emitting tube 11 and the first receiving tube 12.

[0026] from Figure 2 It can be seen that it also includes a first guide wheel 51 and a second digital gear 7. The first guide wheel 51 is connected to the first digital gear 6 and simultaneously connected to the second digital gear 7. It also includes a second pointer 71, which is fixedly connected to the second digital gear 7. Furthermore, it includes a second light-emitting diode 13 and a second receiving diode 14, which are connected to the MCU core control unit 2. Figure 6 It can be seen that the second light-emitting tube 13 and the second receiving tube 14 are located above and below the second digital gear 7, respectively. Figure 6 , Figure 7 It can be seen that the second digital gear 7 has a light-transmitting hole 72 at the light channel of the second light-emitting tube 13 and the second receiving tube 14.

[0027] from Figure 2 It can be seen that it also includes a second gear 52 and a third digital gear 8. The second gear 52 is connected to the second digital gear 7 and simultaneously to the third digital gear 8. It also includes a third pointer 81, which is fixedly connected to the third digital gear 8. Furthermore, it includes a third LED 15 and a third receiver 16, which are connected to the MCU core control unit 2. Figure 8 It can be seen that the third light-emitting tube 15 and the third receiving tube 16 are located above and below the third digital gear 8, respectively. Figure 8 , Figure 9 It can be seen that the third digital gear 8 has a light-transmitting hole 82 at the light channel corresponding to the third light-emitting tube 15 and the third receiving tube 16.

[0028] from Figure 2 It can be seen that it includes a third gear 53 and a fourth digital gear 9. The third gear 53 is connected to the third digital gear 8 and also to the fourth digital gear 9. It also includes a fourth pointer 91, which is fixedly connected to the fourth digital gear 9. Furthermore, it includes a fourth LED 17 and a fourth receiver 18, which are connected to the MCU core control unit 2. Figure 10 It can be seen that the fourth light-emitting tube 17 and the fourth receiving tube 18 are located above and below the fourth digital gear 9, respectively. Figure 10 , Figure 11 It can be seen that the fourth digital gear 9 has a light-transmitting hole 92 at the light channel corresponding to the fourth light-emitting tube 17 and the fourth receiving tube 18.

[0029] from Figure 3As can be seen, this embodiment of the invention also includes a dial 20, with the liquid crystal display screen 3 located at the lower part of the dial 20, displaying the flow rate value. The first pointer 61, second pointer 71, third pointer 81, and fourth pointer 91 are located at the upper part of the dial 20 and are distributed along a semi-circle. Around the first pointer 61, second pointer 71, third pointer 81, and fourth pointer 91, the dial 20 has circumferentially distributed scales and numbers (0 to 9). The scales and numbers on the dial 20, in conjunction with the first pointer 61, second pointer 71, third pointer 81, and fourth pointer 91, display the flow rate value.

[0030] The flow rate mentioned in this embodiment refers to the flow rate of water, gas, etc., flowing through the electronic smart meter. In the working state of this embodiment, the MCU core control unit 2 tests and calculates the flow rate flowing through the electronic smart meter through the flow test module 1, and then displays the flow rate through the electronic smart meter on the LCD screen 3. As the flow rate through the electronic smart meter increases, the MCU core control unit 2 sends a drive pulse, causing the rotor 41 and rotor gear 42 of the stepper motor 4 to rotate. The rotor gear 42 then drives the connected first digital gear 6 to rotate, thereby driving the first pointer 61 to rotate. The first digital gear 6 then drives the connected first guide wheel 51 to rotate. The first guide wheel 51 then drives the connected second digital gear 7 to rotate, thereby driving the second pointer 71 to rotate. The second digital gear 7 then drives the connected second guide wheel 52 to rotate. The second guide wheel 52 then drives the connected third digital gear 8 to rotate, thereby driving the third pointer 81 to rotate. The third digital gear 8 then drives the connected third guide wheel 53 to rotate. The third guide wheel 53 then drives the connected fourth digital gear 9 to rotate, thereby driving the fourth pointer 91 to rotate.

[0031] In this embodiment of the invention, the light-emitting diode (LED) refers to the LED of an optocoupler, and the receiving diode refers to the receiving diode of an optocoupler. The two are configured in pairs to form an optocoupler. There is a light path between the LED and the receiving diode. When the light path is unobstructed, the receiving diode can receive the light emitted by the LED (usually infrared). The receiving diode will conduct when it receives the light emitted by the LED, and will cut off when it does not receive the light emitted by the LED. The MCU core control unit 2 determines whether the light source of the optocoupler is blocked based on this information.

[0032] During the rotation of the first digital gear 6, its light-transmitting hole 62 rotates to the light channel of the first light-emitting tube 11 and the first receiving tube 12. The light emitted by the first light-emitting tube 11 can be received by the first receiving tube 12, and the first receiving tube 12 is turned on. Based on this, the MCU core control unit 2 determines that the first pointer 61 is at the scale 0 position. When its light-transmitting hole 62 leaves the light channel of the first light-emitting tube 11 and the first receiving tube 12, the light emitted by the first light-emitting tube 11 cannot be received by the first receiving tube 12, and the first receiving tube 12 is turned off. Based on this, the MCU core control unit 2 determines that the first pointer 61 is not at the scale 0 position.

[0033] During the rotation of the second digital gear 7, its light-transmitting hole 72 rotates to the light channel of the second light-emitting tube 13 and the second receiving tube 14. The light emitted by the second light-emitting tube 13 can be received by the second receiving tube 14, and the second receiving tube 14 is turned on. Based on this, the MCU core control unit 2 determines that the second pointer 71 is at the scale 0 position. When its light-transmitting hole 72 leaves the light channel of the second light-emitting tube 13 and the second receiving tube 14, the light emitted by the second light-emitting tube 13 cannot be received by the second receiving tube 14, and the second receiving tube 14 is turned off. Based on this, the MCU core control unit 2 determines that the second pointer 71 is not at the scale 0 position.

[0034] During the rotation of the third digital gear 8, its light-transmitting hole 82 rotates to the light channel of the third light-emitting tube 15 and the third receiving tube 16. The light emitted by the third light-emitting tube 15 can be received by the third receiving tube 16, and the third receiving tube 16 is turned on. Based on this, the MCU core control unit 2 determines that the third pointer 81 is at the scale 0 position. When its light-transmitting hole 82 leaves the light channel of the third light-emitting tube 15 and the third receiving tube 16, the light emitted by the third light-emitting tube 15 cannot be received by the third receiving tube 16, and the third receiving tube 16 is turned off. Based on this, the MCU core control unit 2 determines that the third pointer 81 is not at the scale 0 position.

[0035] During the rotation of the fourth digital gear 9, its light-transmitting hole 92 rotates to the light channel of the fourth light-emitting tube 17 and the fourth receiving tube 18. The light emitted by the fourth light-emitting tube 17 can be received by the fourth receiving tube 18, and the fourth receiving tube 18 is turned on. Based on this, the MCU core control unit 2 determines that the fourth pointer 91 is at the scale 0 position. When its light-transmitting hole 92 leaves the light channel of the fourth light-emitting tube 17 and the fourth receiving tube 18, the light emitted by the fourth light-emitting tube 17 cannot be received by the fourth receiving tube 18, and the fourth receiving tube 18 is turned off. Based on this, the MCU core control unit 2 determines that the fourth pointer 91 is not at the scale 0 position.

[0036] As described above, during operation, the MCU core control unit 2 can determine whether the pointer is at position 0, thus determining whether the pointer's position displays the correct flow rate. If the actual flow rate is 10, but the pointer corresponding to the units digit is not at 0 (the pointer stays at positions 1-9), it indicates that the digital gear has lost steps during operation. The MCU core control unit sends a drive pulse to cause the stepper motor to quickly move the pointer to the correct position 10. This invention has such an error correction function, ensuring that the value displayed by the pointer is synchronized with the flow rate measured and calculated by the MCU core control unit.

[0037] In this embodiment of the invention, the light-emitting tube is located above the digital gear and the receiving tube is located below the digital gear. Obviously, if the positions of the light-emitting tube and the receiving tube are interchanged, that is, the light-emitting tube is located below the digital gear and the receiving tube is located above the digital gear, the purpose of the invention can also be achieved. These are all within the protection scope of the invention and will not be elaborated here.

[0038] This invention employs a digital gear to drive a pointer, which in turn rotates in conjunction with a dial to display the flow rate. Alternatively, a digital roller could be used, where the rotation of the digital gear drives the roller to display the flow rate, achieving the same objective. Any method where the MCU core control unit drives a stepper motor, which in turn drives the display device (pointer, digital roller, digital dial, etc.) to rotate and display the flow rate, falls within the scope of this invention and will not be elaborated further here.

[0039] The flow testing module of this invention can be an ultrasonic flow testing module, an electromagnetic flow testing module, or other electronic flow testing modules. As long as the measured flow rate is driven by a stepper motor to rotate a digital gear, which in turn drives a display device to display the flow rate, and then uses a light-emitting diode and a receiving diode to detect and correct errors in the position of the display device during operation, all of these are within the protection scope of this invention and will not be elaborated here.

[0040] This invention is particularly applicable to fully electronic smart water meters and also to smart gas meters, all of which are within the scope of protection of this invention, and will not be elaborated further here.

Claims

1. An electronic intelligent meter, comprising a flow testing module and an MCU core control unit, wherein the flow testing module is connected to the MCU core control unit, characterized in that: It also includes a stepper motor and a first digital gear, the stepper motor being connected to the MCU core control unit; the stepper motor includes a rotor, and the rotor includes a rotor gear; the rotor gear is connected to the first digital gear.

2. The electronic intelligent meter according to claim 1, further characterized in that: It also includes a first light-emitting diode and a first receiving diode, which are connected to the MCU core control unit.

3. The electronic intelligent meter according to claim 2, further characterized in that: The first light-emitting tube and the first receiving tube are located above and below the first digital gear, respectively, and the first digital gear has a light-transmitting hole at the light channel corresponding to the first light-emitting tube and the first receiving tube.

4. The electronic intelligent meter according to claim 3, further characterized in that: It also includes a first guide wheel and a second digital gear, wherein the first guide wheel is connected to the first digital gear and simultaneously connected to the second digital gear.

5. The electronic intelligent meter according to claim 4, further characterized in that: It also includes a second light-emitting diode and a second receiving diode, which are connected to the MCU core control unit; the second light-emitting diode and the second receiving diode are located above and below the second digital gear, respectively, and the second digital gear has a light-transmitting hole at the light channel corresponding to the second light-emitting diode and the second receiving diode.

6. The electronic intelligent meter according to claim 5, further characterized in that: It also includes a second guide wheel and a third digital gear, wherein the second guide wheel is connected to the second digital gear and simultaneously connected to the third digital gear.

7. The electronic intelligent meter according to claim 6, characterized in that... It also includes a third light-emitting diode and a third receiving diode, which are connected to the MCU core control unit; the third light-emitting diode and the third receiving diode are located above and below the third digital gear, respectively, and the third digital gear has a light-transmitting hole at the light channel corresponding to the third light-emitting diode and the third receiving diode.

8. The electronic intelligent meter according to claim 7, characterized in that... It also includes a third guide wheel and a fourth digital gear. The third guide wheel is connected to the third digital gear and also to the fourth digital gear. It also includes a fourth light-emitting diode and a fourth receiving diode. The fourth light-emitting diode and the fourth receiving diode are connected to the MCU core control unit. The fourth light-emitting diode and the fourth receiving diode are located above and below the fourth digital gear, respectively. The fourth digital gear has a light-transmitting hole at the light channel corresponding to the fourth light-emitting diode and the fourth receiving diode.

9. The electronic intelligent meter according to claims 1-8, characterized in that... It also includes a first pointer, which is fixedly connected to the first digital gear.

10. The electronic intelligent meter according to claim 9, characterized in that... It also includes an LCD screen.

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