Assignable address water level sensor
By designing an addressable water level sensor and using a cut-off address setting unit to change the circuit loop, the automatic allocation of the water level sensor address in the RV water tank is realized, simplifying the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TBB POWER XIAMEN CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-31
AI Technical Summary
The current method of assigning addresses to water level sensors in RV water tanks requires manual operation, which is cumbersome.
Design an addressable water level sensor. By cutting the address setting section to change the circuit between the address resistor and the MCU processor, automatic address setting is achieved using a voltage divider unit and an RS485 communication module.
It enables simple and automatic setting of the water level sensor address, reducing manual operation steps.
Smart Images
Figure CN224580984U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of RVs, and in particular to an addressable water level sensor. Background Technology
[0002] Existing RVs typically have multiple water tanks (such as fresh water tanks, grey water tanks, and black water tanks). To monitor the water level in each tank, water level sensors are usually installed on each tank. The RV's main unit needs to assign different addresses to each water level sensor to define each sensor and thus distinguish between different water tanks. Currently, this is usually done manually by operating the main unit and setting the addresses of each water level sensor, which is quite cumbersome.
[0003] In view of the above problems, it is necessary to study an addressable water level sensor that can be easily set to an address. Utility Model Content
[0004] The purpose of this invention is to provide an addressable water level sensor, which makes it easy to set the address of the addressable water level sensor.
[0005] To achieve the above objectives, the solution of this utility model is: An addressable water level sensor includes a water level sensor body, an MCU processor, and an address allocation module. The address allocation module includes a voltage divider unit and multiple address resistors. The first end of each address resistor is connected to an I / O port of the MCU processor, and the first end of each address resistor is also connected to the first end of the voltage divider unit. The second end of the voltage divider unit is connected to a control power supply, and the second end of each address resistor is grounded. The water level sensor body has multiple customizable address setting sections, each address setting section corresponding to a specific address resistor. Each address setting section is used to control whether the address resistor corresponding to that address setting section forms a loop with the MCU processor.
[0006] The water level sensor body is equipped with address identifiers corresponding to each address setting section.
[0007] Each address setting section is equipped with a grounding line, and the second end of each address resistor is grounded through the grounding line of the address setting section corresponding to that address resistor.
[0008] Each address resistor is matched to its respective address setting section.
[0009] Each address setting section is equipped with a connection line, and the first end of each address resistor is connected to the IO port of the MCU processor and the first end of the voltage divider unit through the connection line of the address setting section corresponding to the address resistor.
[0010] The voltage divider unit includes a voltage divider resistor.
[0011] The water level sensor body is also equipped with a communication module, which is electrically connected to the MCU processor.
[0012] The communication module is an RS485 communication module.
[0013] Each address setting unit is arranged side by side on the same side of the water level sensor body.
[0014] The address setting section protrudes from the water level sensor body.
[0015] With the above solution, when using the addressable water level sensor of this utility model, the user can cut off the corresponding address setting part by installing the required water tank, so that the address resistor corresponding to the cut-off address setting part does not form a loop with the MCU processor, thereby changing the voltage value of the IO port output by the address allocation module to the MCU processor; subsequently, the MCU processor generates corresponding address information based on the voltage value received by the IO port connected to the address allocation module and sends it to the host; the host then sets the corresponding address for each addressable water level sensor based on the address information of each addressable water level sensor.
[0016] As can be seen from the above, the address of the addressable water level sensor of this utility model can be set by cutting off the address setting part of the addressable water level sensor, which is very simple and convenient to operate. Attached Figure Description
[0017] Figure 1 This is a partial structural schematic diagram of the present invention.
[0018] Figure 2 This is a partial circuit schematic diagram of the present invention.
[0019] Label Explanation: Water level sensor body A, address setting unit A1, MCU processor 1, Address allocation module 2, voltage divider unit 21, voltage divider resistor 211, address resistor 22. Communication module 3. Detailed Implementation
[0020] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.
[0021] like Figure 1 and Figure 2As shown, this utility model discloses an addressable water level sensor, including a water level sensor body A capable of water level detection. How the water level sensor body A performs water level detection is existing technology and will not be elaborated upon here. The water level sensor body A is coupled with an MCU processor 1, which is used for data acquisition, calculation, and transmission.
[0022] In an embodiment of this utility model, the water level sensor body A is further equipped with an address allocation module 2. The address allocation module 2 includes a voltage divider unit 21 and multiple address resistors 22. The first end of each address resistor 22 is connected to an I / O port of the MCU processor 1, and the first end of each address resistor 22 is also connected to the first end of the voltage divider unit 21. The second end of the voltage divider unit 21 is connected to a control power supply, and the second end of each address resistor 22 is grounded. The water level sensor body A is provided with multiple customizable address setting sections A1, each address setting section A1 corresponding to a specific address resistor 22. Each address setting section A1 is used to control whether the address resistor 22 corresponding to that address setting section A1 forms a loop with the MCU processor 1. When using the addressable water level sensor of this utility model, the user can cut off the corresponding address setting part A1 by installing the desired water tank, so that the address resistor 22 corresponding to the cut-off address setting part A1 does not form a circuit with the MCU processor 1, thereby changing the voltage value of the IO port output by the address allocation module 2 to the MCU processor 1; subsequently, the MCU processor 1 generates corresponding address information based on the voltage value received by the IO port connected to the address allocation module 2 and sends it to the host; the host then sets the corresponding address of each addressable water level sensor based on the address information of each addressable water level sensor; as can be seen from the foregoing, this utility model can achieve the setting of the address of the addressable water level sensor by cutting off the address setting part A1 of the addressable water level sensor, which is very simple and convenient to operate.
[0023] In an embodiment of this utility model, the water level sensor body A is provided with address identifiers (not shown) corresponding to each address setting part A1. The address identifiers can be set to the water level sensor body A by ink printing. The address identifiers can be used to identify different water tanks, such as clear water tank 1, clear water tank 2, grey water tank 1, grey water tank 2, black water tank 1, black water tank 2, etc. Each address setting part A1 can be arranged side by side on one side of the water level sensor body A, and the address setting parts A1 protrude from the water level sensor body A to allow for cutting of the address setting parts A1.
[0024] In an embodiment of this utility model, each address setting section A1 is provided with a grounding line, and the second end of each address resistor 22 is grounded through the grounding line of the address setting section A1 corresponding to the address resistor 22; thus, when an address setting section A1 is cut off, the second end of the address resistor 22 corresponding to the cut-off address setting section A1 is not grounded, so that the address resistor 22 corresponding to the cut-off address setting section A1 does not form a loop with the MCU processor 1. It should be noted that this invention is not limited to the aforementioned method of controlling whether the address resistor 22 corresponding to each address setting unit A1 forms a loop with the MCU processor 1. Alternatively, each address setting unit A1 may be provided with a connection line, and the first end of each address resistor 22 may be connected to the I / O port of the MCU processor 1 and the first end of the voltage divider unit 21 through the connection line of the address setting unit A1 corresponding to that address resistor 22. In this way, when an address setting unit A1 is cut off, the first end of the address resistor 22 corresponding to the cut-off address setting unit A1 is not connected to the I / O port of the MCU processor 1 and the first end of the voltage divider unit 21, thus preventing the address resistor 22 corresponding to the cut-off address setting unit A1 from forming a loop with the MCU processor 1. Furthermore, in this invention, each address resistor 22 may be individually coupled to each address setting unit A1, and when an address setting unit A1 is cut off, the address resistor 22 corresponding to the cut-off address setting unit A1 is also disconnected from the water level sensor body A and does not form a loop with the MCU processor 1.
[0025] In an embodiment of this utility model, the voltage divider unit 21 includes a voltage divider resistor 211, which serves to divide the voltage to protect the MCU processor 1.
[0026] In an embodiment of this utility model, the water level sensor body A may also be equipped with a communication module 3. The communication module 3 is electrically connected to the MCU processor 1. The MCU processor 1 establishes communication with the host through the communication module 3. The communication module 3 may be an RS485 communication module.
[0027] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.
Claims
1. An addressable water level sensor, comprising a water level sensor body, wherein the water level sensor body is coupled with an MCU processor; characterized in that: The water level sensor body is also equipped with an address allocation module, which includes a voltage divider unit and multiple address resistors; the first end of each address resistor is connected to an IO port of the MCU processor, the first end of each address resistor is also connected to the first end of the voltage divider unit, the second end of the voltage divider unit is connected to the control power supply, and the second end of each address resistor is grounded. The water level sensor body is provided with multiple customizable address setting sections, each address setting section and each address resistor are respectively set, and each address setting section is used to control whether the address resistor corresponding to the address setting section and the MCU processor form a loop.
2. The addressable water level sensor as described in claim 1, characterized in that: The water level sensor body is equipped with address identifiers corresponding to each address setting section.
3. The addressable water level sensor as described in claim 1, characterized in that: Each address setting section is equipped with a grounding line, and the second end of each address resistor is grounded through the grounding line of the address setting section corresponding to that address resistor.
4. The addressable water level sensor as described in claim 1, characterized in that: Each address resistor is matched to its respective address setting section.
5. The addressable water level sensor as described in claim 1, characterized in that: Each address setting section is equipped with a connection line, and the first end of each address resistor is connected to the IO port of the MCU processor and the first end of the voltage divider unit through the connection line of the address setting section corresponding to the address resistor.
6. The addressable water level sensor as described in claim 1, characterized in that: The voltage divider unit includes a voltage divider resistor.
7. The addressable water level sensor as described in claim 1, characterized in that: The water level sensor body is also equipped with a communication module, which is electrically connected to the MCU processor.
8. The addressable water level sensor as described in claim 7, characterized in that: The communication module is an RS485 communication module.
9. The addressable water level sensor as described in claim 1, characterized in that: Each address setting unit is arranged side by side on the same side of the water level sensor body.
10. The addressable water level sensor as described in claim 9, characterized in that: The address setting section protrudes from the water level sensor body.