9632 Full-Color Dot Matrix Liquid Level Display

Abstract

This utility model discloses a 9632 full-color dot matrix liquid level display, relating to the technical field of liquid level display. It includes a central control module, a water level monitoring module, a foam monitoring module, and a display module electrically connected to the central control module. The display module is electrically connected to a 9632 dot matrix display screen; the water level monitoring module is electrically connected to a water level sensor; and the foam monitoring module is electrically connected to a foam sensor. In this utility model, the central control module drives the 9632 dot matrix display screen through the display module based on the collected data signals. It can simultaneously display the liquid levels of three liquids. The large display window allows for clear observation of liquid levels from a distance. It has high resolution and can display single, dual, or triple display bars, improving the practicality of the display. A communication module allows users to collect liquid level information for centralized processing.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid level display, specifically to a 9632 full-color dot matrix liquid level display. Background Technology

[0002] A liquid level indicator is a specialized instrument used for visually observing the liquid level in a storage container. It is primarily used in industrial containers such as liquid storage tanks in cold storage systems and low-pressure circulating tanks. It achieves liquid level monitoring through a mechanism where external display indicators change synchronously with the internal liquid level, and belongs to the field of instrumentation technology.

[0003] This instrument includes various types such as frosting type, glass tube type, oil-filled type, and long-distance indicator. The frosting type determines the liquid level by the frost on the surface of the connecting pipe and is suitable for low-temperature ammonia environments; the glass tube type uses ball valves at both ends to prevent leakage, but has the limitation of low-temperature frost affecting observation; the oil-filled type uses refrigeration oil to transmit pressure and display the liquid level, avoiding the frost problem; the long-distance type connects the pressure-conducting pipe and the evaporation chamber based on the pressure difference principle to achieve centralized monitoring of dispersed containers.

[0004] The existing display on the fire-fighting foam water tanker can only display the liquid level percentage of one liquid. If three liquids need to be displayed, three displays are required, and the display window is small with poor resolution (10%).

[0005] In summary, a 9632 full-color dot matrix liquid level display was designed. Utility Model Content

[0006] To overcome the above-mentioned shortcomings, this utility model provides a 9632 full-color dot matrix liquid level display.

[0007] This utility model achieves the above objectives through the following technical solutions: A 9632 full-color dot matrix liquid level display includes a central control module, a water level monitoring module, a foam monitoring module, and a display module electrically connected to the central control module; The display module is electrically connected to a 9632 dot matrix display screen; The water level monitoring module is electrically connected to a water level sensor, and the foam monitoring module is electrically connected to a foam sensor.

[0008] Preferably, a power supply module is also included, which is electrically connected to other modules and can provide stable operating voltage to the other modules.

[0009] Preferably, the power module includes a power circuit, which comprises a first integrated circuit, a first capacitor, a second capacitor, a first inductor, and a first diode. The first integrated circuit is an LM2596S-5.0. The third and fifth terminals of the first integrated circuit are grounded. The first terminal of the first integrated circuit is grounded through the first capacitor. The fourth terminal of the first integrated circuit is grounded through the second capacitor. The second terminal of the first integrated circuit is grounded through the first diode, with the anode of the first diode grounded. The second terminal of the first integrated circuit is grounded through the first inductor and the second capacitor. The fourth terminal of the first integrated circuit samples the output voltage, enabling the first integrated circuit to stably regulate the output voltage and improving the stability of the voltage output.

[0010] Preferably, both the water level monitoring module and the foam monitoring module include a signal acquisition circuit. The signal acquisition circuit includes a first connector, a first resistor, and a third capacitor. The first connector is electrically connected to the water level sensor or the foam sensor. One output terminal of the first connector is electrically connected to the signal input terminal of the MCU of the central control module through the first resistor. The other output terminal of the first connector is grounded. The third capacitor is connected in parallel between the two output terminals of the first connector. There are two foam sensors, namely a type A foam sensor and a type B foam sensor. The signals collected by the water level sensor or the foam sensor are transmitted to the MCU of the central control module through the signal acquisition circuit, which can realize real-time monitoring of the liquid level in the fire-fighting foam tanker and the type A and type B foam.

[0011] Preferably, the central control module is electrically connected to a communication module. The communication module includes a communication circuit comprising a second integrated circuit, a second resistor, a third resistor, a fourth resistor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a second inductor, a third inductor, a second diode, a third diode, a fourth diode, a first fuse, and a second fuse. The second integrated circuit is model TJA1051T. The first terminal of the second integrated circuit is connected to a 5V DC power supply via the second resistor. The third terminal of the second integrated circuit is also connected to a 5V DC power supply. The second terminal of the second integrated circuit is grounded and connected to a 5V DC power supply via the fourth capacitor. The fourth terminal of the second integrated circuit is connected to a 5V DC power supply via the third resistor. The sixth terminal of the second integrated circuit... The first terminal is electrically connected to the TX terminal of the central control module's MCU via the third inductor and the second fuse. The seventh terminal of the second integrated circuit is electrically connected to the RX terminal of the central control module's MCU via the second inductor and the first fuse. One end of the series circuit composed of the fifth and sixth capacitors is electrically connected to the second inductor and the first fuse, respectively. The other end of the series circuit composed of the fifth and sixth capacitors is electrically connected to the third inductor and the second fuse, respectively. The connection point of the fifth and sixth capacitors is grounded. The anti-series circuit composed of the second and third diodes is connected in parallel with the series circuit composed of the fifth and sixth capacitors. The fourth diode is connected in parallel with the series circuit composed of the fifth and sixth capacitors. The fourth resistor is connected in parallel between the TX and RX terminals of the central control module's MCU.

[0012] Preferably, both the first and second fuses are resettable fuses, and the rated operating current of the first and second fuses is 120mA.

[0013] Preferably, the central control module is electrically connected to an alarm module, which includes an alarm circuit. The alarm circuit includes a fifth resistor, a sixth resistor, a transistor, a fourth diode, a relay, and a buzzer. The base of the transistor is electrically connected to a signal output terminal of the MCU of the central control module through the fifth resistor. The base of the transistor is grounded through the sixth resistor, and the emitter of the transistor is grounded. The collector of the transistor is connected to a 5V DC power supply through the fourth diode and the coil of the relay, respectively. The switch terminal of the relay is connected in series with the buzzer to a 12V power supply.

[0014] The beneficial effects of this utility model are: In this 9632 full-color dot matrix liquid level display: The central control module drives the 9632 dot matrix display screen through the display module based on the collected data signals. It can display the liquid level of three liquids at the same time. The display window is large, allowing for clear observation of the liquid level from a distance. It has a high resolution (2.5%) and can display information such as liquid level bars (water), dual display bars (water and Class B foam), or triple display bars (water, Class B foam, and Class A foam), which improves the practicality of the display. The communication module allows users to collect liquid level information for centralized processing. Attached Figure Description

[0015] This utility model will be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is a system schematic diagram of this utility model; Figure 2 This is the circuit diagram of the power supply circuit of this utility model; Figure 3 This is a circuit diagram of the signal acquisition circuit of this utility model; Figure 4 This is a circuit diagram of the communication circuit of this utility model; Figure 5 This is the circuit diagram of the alarm circuit of this utility model. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0017] like Figures 1-5 As shown, a 9632 full-color dot matrix liquid level display includes a central control module 1, a water level monitoring module 6, a foam monitoring module 5, and a display module 7 electrically connected to the central control module 1; the display module 7 is electrically connected to a 9632 dot matrix display screen 11; the water level monitoring module 6 is electrically connected to a water level sensor 8, and the foam monitoring module 5 is electrically connected to a foam sensor 9.

[0018] The working principle of the 9632 full-color dot matrix liquid level display is as follows: Class A foam sensor 9, Class B foam sensor 9, and water level sensor 8 monitor the liquid level and Class A and Class B foam in the fire-fighting foam water tanker in real time. Then, the water level monitoring module 6 and foam monitoring module 5 transmit the collected signals to the central control module 1. The central control module 1 drives the 9632 dot matrix display screen 11 through the display module 7 based on the collected data signals. The relevant information is displayed on the 9632 dot matrix display screen 11. It can display the liquid level of three liquids at the same time. The display window is large, allowing for clear observation of the liquid level from a distance. It has a high resolution (2.5%) and can display information such as single liquid level (water), dual display bars (water and Class B foam), or triple display bars (water, Class B foam, and Class A foam).

[0019] Meanwhile, through the communication module 3, users can collect liquid level information for centralized processing.

[0020] Specifically, it also includes power module 2, which is electrically connected to other modules and can provide stable operating voltage to other modules.

[0021] Specifically, the power module 2 includes a power supply circuit, which includes a first integrated circuit U1, a first capacitor C1, a second capacitor C2, a first inductor L1, and a first diode D1. The first integrated circuit U1 is model LM2596S-5.0. The third and fifth terminals of the first integrated circuit U1 are grounded. The first terminal of the first integrated circuit U1 is grounded through the first capacitor C1. The fourth terminal of the first integrated circuit U1 is grounded through the second capacitor C2. The second terminal of the first integrated circuit U1 is grounded through the first diode D1, with the anode of the first diode D1 grounded. The second terminal of the first integrated circuit U1 is grounded through the first inductor L1 and the second capacitor C2. The fourth terminal of the first integrated circuit U1 samples the output voltage, enabling the first integrated circuit U1 to stably regulate the output voltage, thereby improving the stability of the voltage output.

[0022] Specifically, both the water level monitoring module 6 and the foam monitoring module 5 include a signal acquisition circuit. The signal acquisition circuit includes a first connector JP1, a first resistor R1, and a third capacitor C3. The first connector JP1 is electrically connected to the water level sensor 8 or the foam sensor 9. One output terminal of the first connector JP1 is electrically connected to the signal input terminal of the MCU of the central control module 1 through the first resistor R1. The other output terminal of the first connector JP1 is grounded. The third capacitor C3 is connected in parallel between the two output terminals of the first connector JP1. There are two foam sensors 9, namely a type A foam sensor 9 and a type B foam sensor 9. The signals collected by the water level sensor 8 or the foam sensor 9 are transmitted to the MCU of the central control module 1 through the signal acquisition circuit, which can realize real-time monitoring of the liquid level in the fire foam water tanker and the type A and type B foam.

[0023] Specifically, the central control module 1 is electrically connected to a communication module 3. The communication module 3 includes a communication circuit, which comprises a second integrated circuit U2, a second resistor R2, a third resistor R3, a fourth resistor R4, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a second inductor L2, a third inductor L3, a second diode D2, a third diode D3, a fourth diode D4, a first fuse FU1, and a second fuse FU2. The second integrated circuit U2 is model TJA1051T. The first terminal of the second integrated circuit U2 is connected to a 5V DC power supply through the second resistor R2. The third terminal of the second integrated circuit U2 is also connected to a 5V DC power supply. The second terminal of the second integrated circuit U2 is grounded and connected to a 5V DC power supply through the fourth capacitor C4. The fourth terminal of the second integrated circuit U2 is connected to a 5V DC power supply through the third resistor R3. The sixth terminal of the second integrated circuit U2 is connected to... The third inductor L3 and the second fuse FU2 are electrically connected to the TX terminal of the MCU of the central control module 1. The seventh terminal of the second integrated circuit U2 is electrically connected to the RX terminal of the MCU of the central control module 1 through the second inductor L2 and the first fuse FU1. One end of the series circuit composed of the fifth capacitor C5 and the sixth capacitor C6 is electrically connected to the second inductor L2 and the first fuse FU1 respectively. The other end of the series circuit composed of the fifth capacitor C5 and the sixth capacitor C6 is electrically connected to the third inductor L3 and the second fuse FU2 respectively. The connection point of the fifth capacitor C5 and the sixth capacitor C6 is grounded. The anti-series circuit composed of the second diode D2 and the third diode D3 is connected in parallel with the series circuit composed of the fifth capacitor C5 and the sixth capacitor C6. The fourth diode D4 is connected in parallel with the series circuit composed of the fifth capacitor C5 and the sixth capacitor C6. The fourth resistor R4 is connected in parallel between the TX terminal and the RX terminal of the MCU of the central control module 1.

[0024] Specifically, both the first fuse FU1 and the second fuse FU2 are resettable fuses, and the rated operating current of the first fuse FU1 and the second fuse FU2 is 120mA.

[0025] Specifically, the central control module 1 is electrically connected to an alarm module 4. The alarm module 4 includes an alarm circuit, which includes a fifth resistor, a sixth resistor, a transistor, a fourth diode D4, a relay, and a buzzer 10. The base of the transistor is electrically connected to a signal output terminal of the MCU of the central control module 1 through the fifth resistor. The base of the transistor is grounded through the sixth resistor, and the emitter of the transistor is grounded. The collector of the transistor is connected to a 5V DC power supply through the fourth diode D4 and the coil of the relay, respectively. The switch terminal of the relay is connected in series with the buzzer 10 to a 12V power supply.

[0026] Based on the above description and inspired by this utility model, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A 9632 full-color dot matrix liquid level indicator, characterized in that: It includes a central control module, a water level monitoring module, a foam monitoring module, and a display module that are electrically connected to the central control module; The display module is electrically connected to a 9632 dot matrix display screen; The water level monitoring module is electrically connected to a water level sensor, and the foam monitoring module is electrically connected to a foam sensor.

2. The 9632 full-color dot matrix liquid level indicator according to claim 1, characterized in that: It also includes a power module, which is electrically connected to other modules.

3. The 9632 full-color dot matrix liquid level indicator according to claim 2, characterized in that: The power module includes a power circuit, which includes a first integrated circuit, a first capacitor, a second capacitor, a first inductor, and a first diode. The first integrated circuit is model LM2596S-5.

0. The third and fifth terminals of the first integrated circuit are grounded. The first terminal of the first integrated circuit is grounded through the first capacitor. The fourth terminal of the first integrated circuit is grounded through the second capacitor. The second terminal of the first integrated circuit is grounded through the first diode. The anode of the first diode is grounded. The second terminal of the first integrated circuit is grounded through the first inductor and the second capacitor.

4. The 9632 full-color dot matrix liquid level indicator according to claim 1, characterized in that: Both the water level monitoring module and the foam monitoring module include a signal acquisition circuit. The signal acquisition circuit includes a first connector, a first resistor, and a third capacitor. The first connector is electrically connected to the water level sensor or the foam sensor. One output terminal of the first connector is electrically connected to the signal input terminal of the MCU of the central control module through the first resistor. The other output terminal of the first connector is grounded. The third capacitor is connected in parallel between the two output terminals of the first connector.

5. The 9632 full-color dot matrix liquid level indicator according to claim 1, characterized in that: The central control module is electrically connected to a communication module. The communication module includes a communication circuit comprising a second integrated circuit, a second resistor, a third resistor, a fourth resistor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a second inductor, a third inductor, a second diode, a third diode, a fourth diode, a first fuse, and a second fuse. The second integrated circuit is model TJA1051T. The first terminal of the second integrated circuit is connected to a 5V DC power supply via the second resistor. The third terminal of the second integrated circuit is also connected to a 5V DC power supply. The second terminal of the second integrated circuit is grounded and connected to a 5V DC power supply via the fourth capacitor. The fourth terminal of the second integrated circuit is connected to a 5V DC power supply via the third resistor. The sixth terminal of the second integrated circuit is connected to... The third inductor and the second fuse are electrically connected to the TX terminal of the MCU in the central control module. The seventh terminal of the second integrated circuit is electrically connected to the RX terminal of the MCU in the central control module through the second inductor and the first fuse. One end of the series circuit composed of the fifth and sixth capacitors is electrically connected to the second inductor and the first fuse, respectively. The other end of the series circuit composed of the fifth and sixth capacitors is electrically connected to the third inductor and the second fuse, respectively. The connection point of the fifth and sixth capacitors is grounded. The anti-series circuit composed of the second and third diodes is connected in parallel with the series circuit composed of the fifth and sixth capacitors. The fourth diode is connected in parallel with the series circuit composed of the fifth and sixth capacitors. The fourth resistor is connected in parallel between the TX and RX terminals of the MCU in the central control module.

6. The 9632 full-color dot matrix liquid level display according to claim 5, characterized in that: Both the first and second fuses are resettable fuses, and the rated operating current of both fuses is 120mA.

7. The 9632 full-color dot matrix liquid level indicator according to claim 1, characterized in that: The central control module is electrically connected to an alarm module, which includes an alarm circuit. The alarm circuit includes a fifth resistor, a sixth resistor, a transistor, a fourth diode, a relay, and a buzzer. The base of the transistor is electrically connected to a signal output terminal of the MCU of the central control module through the fifth resistor. The base of the transistor is grounded through the sixth resistor, and the emitter of the transistor is grounded. The collector of the transistor is connected to a 5V DC power supply through the fourth diode and the coil of the relay, respectively. The switch terminal of the relay is connected in series with the buzzer to a 12V power supply.

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