Pipeline type color sensor and control circuit thereof

Abstract

The utility model discloses a pipeline type color sensor, which comprises a sensor body, a circuit board and an anti-interference sheath, the circuit board is arranged in the sensor body, the sensor body is connected with a liquid circulation pipeline, the anti-interference sheath is matched with the liquid circulation pipeline, and the anti-interference sheath is connected with the liquid circulation pipeline. And the light supplementing module, the sensing module and the communication interface are respectively connected with the main control module. According to the utility model, the color of the anti-interference sheath is white or black, the rubber pad is arranged between the connecting surfaces of the circuit board and the sensor body, and the light supplementing module, the sensing module and the communication interface are respectively connected with the main control module. The utility model provides a pipeline type color sensor which can realize identification and detection of color flowing through a pipeline and has good anti-interference performance for users.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a pipeline type color sensor and a control circuit thereof. Background Art

[0002] At present, the detection method for automatic detergent delivery in cleaning appliances is mostly non-contact capacitive. This method is easily affected by ambient temperature and humidity, and misjudgment between clean water and detergent often occurs. In order to solve these problems, it is necessary to introduce pipeline optical color recognition sensors to solve these technical problems. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a pipeline type color sensor which can realize color recognition and detection of the flow in the pipeline and has good anti-interference performance.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A pipeline color sensor comprises a sensor body, a circuit board and an anti-interference sheath, wherein the circuit board is arranged inside the sensor body, the sensor body is connected with a liquid circulation pipeline, and the anti-interference sheath fits with the liquid circulation pipeline.

[0006] Furthermore, the anti-interference sheath is white or black.

[0007] Furthermore, a rubber pad is provided between the connection surfaces of the circuit board and the sensor body.

[0008] A control circuit for a pipeline color sensor comprises a main control module, a fill light module, a sensing module and a communication interface, wherein the fill light module, the sensing module and the communication interface are respectively connected to the main control module.

[0009] Further, the main control module includes a control chip U1, a capacitor C1, a capacitor C2, a capacitor C3, a resistor R1, a resistor R2, a resistor R3, a resistor R4 and a resistor R5. The control chip U1 is provided with pins. The 4th pin of the control chip U1 is respectively connected to one end of the capacitor C1 and the capacitor C2, and is externally connected to a +3.3V power supply. The 5th pin of the control chip U1 is respectively connected to the other end of the capacitor C1 and the capacitor C2, and is grounded. The 6th pin of the control chip U1 is respectively connected to one end of the resistor R4 and the capacitor C3, the other end of the capacitor C3 is grounded, the other end of the resistor R4 is externally connected to a +3.3V power supply, the 16th pin of the control chip U1 is respectively connected to the resistor R3 and the resistor R5, the other end of the resistor R5 is externally connected to a +3.3V power supply, and the 17th pin of the control chip U1 is respectively connected to one end of the resistor R1 and the resistor R2, and the other end of the resistor R1 is externally connected to a +3.3V power supply.

[0010] Furthermore, the sensing module includes a control chip U2 and a capacitor C4. The control chip U2 is provided with pins. The first pin of the control chip U2 is grounded, the second pin of the control chip U2 is connected to the other end of the resistor R2, the third pin of the control chip U2 is connected to the other end of the resistor R3, the third pin of the control chip U2 is connected to one end of the capacitor C4, and an external +3.3V power supply is connected. The other end of the capacitor C4 is grounded.

[0011] Furthermore, the fill light module includes a resistor R6, a resistor R7, a resistor R8, a resistor R9, a lamp D1, a lamp D2 and a transistor Q1, one end of the resistor R8 is connected to the 11th pin of the control chip U1, the other end of the resistor R8 is respectively connected to one end of the resistor R9 and the base of the transistor Q1, the other end of the resistor R9 and the collector of the transistor Q1 are respectively grounded, the emitter of the transistor Q1 is respectively connected to one end of the lamp D1 and the lamp D2, and the other ends of the lamp D1 and the lamp D2 are respectively connected to an external +5V power supply.

[0012] Furthermore, the communication interface includes J1A, J1B, J1C, J2, J3, J4 and J5 terminals, the J1C terminal is connected to the 10th pin of the control chip U1, the J2 terminal and the J1A terminal are respectively connected to an external +3.3V power supply, the J1B terminal and the J5 terminal are respectively grounded, the J3 terminal is connected to the 1st pin of the control chip U1, and the J4 terminal is connected to the 20th pin of the control chip U1.

[0013] Beneficial effects of the utility model:

[0014] The utility model provides users with a pipeline color sensor that can realize color recognition and detection of flow in a pipeline and has good anti-interference performance, by having the anti-interference sheath in white or black, by having a rubber pad between the connecting surface of the circuit board and the sensor body, and by having the fill light module, the sensing module and the communication interface respectively connected to the main control module. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the pipeline color sensor of the utility model;

[0016] Figure 2 It is a three-dimensional diagram of the pipeline color sensor of the utility model;

[0017] Figure 3 This is the circuit schematic diagram of the main control module of the utility model;

[0018] Figure 4 This is a circuit schematic diagram of the sensing module of the utility model;

[0019] Figure 5This is a circuit schematic diagram of the fill light module of the utility model;

[0020] Figure 6 This is a circuit schematic diagram of the communication interface of the utility model. DETAILED DESCRIPTION

[0021] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] according to Figure 1-Figure 6 As shown:

[0023] A pipeline color sensor comprises a sensor body 1, a circuit board 2 and an anti-interference sheath 3, wherein the circuit board 2 is arranged inside the sensor body 1, the sensor body 1 is connected to a liquid circulation pipeline 11, and the anti-interference sheath 3 fits with the liquid circulation pipeline 11.

[0024] Because the color of the anti-interference sheath 3 is white or black, when the user uses the utility model, when the external liquid flows through the liquid circulation pipe 11, the utility model can identify the color of the current liquid, so as to know the change of the liquid in the pipe, and because the anti-interference sheath 3 is a white or black sheath, it has two functions:

[0025] ①Anti-ambient light interference;

[0026] ② It can make the light illuminated by the light of the supplementary light module of the circuit board 2 be evenly reflected and transmitted back to the circuit board 2.

[0027] Because a rubber pad 21 is provided between the connection surfaces of the circuit board 2 and the sensor body 1 , when a user uses the utility model, it can be used to prevent internal crosstalk of the light of the fill light module of the circuit board 2 and can also protect the circuit board 2 .

[0028] A control circuit for a pipeline color sensor comprises a main control module, a fill light module, a sensing module and a communication interface, wherein the fill light module, the sensing module and the communication interface are respectively connected to the main control module.

[0029] The main control module includes a control chip U1, a capacitor C1, a capacitor C2, a capacitor C3, a resistor R1, a resistor R2, a resistor R3, a resistor R4 and a resistor R5. The control chip U1 is provided with pins. The 4th pin of the control chip U1 is respectively connected to one end of the capacitor C1 and the capacitor C2, and is externally connected to a +3.3V power supply. The 5th pin of the control chip U1 is respectively connected to the other end of the capacitor C1 and the capacitor C2, and is grounded. The 6th pin of the control chip U1 is respectively connected to one end of the resistor R4 and the capacitor C3, the other end of the capacitor C3 is grounded, the other end of the resistor R4 is externally connected to a +3.3V power supply, the 16th pin of the control chip U1 is respectively connected to the resistor R3 and the resistor R5, the other end of the resistor R5 is externally connected to a +3.3V power supply, and the 17th pin of the control chip U1 is respectively connected to one end of the resistor R1 and the resistor R2, and the other end of the resistor R1 is externally connected to a +3.3V power supply.

[0030] The sensing module includes a control chip U2 and a capacitor C4. The control chip U2 is provided with pins. The first pin of the control chip U2 is grounded, the second pin of the control chip U2 is connected to the other end of the resistor R2, the third pin of the control chip U2 is connected to the other end of the resistor R3, the third pin of the control chip U2 is connected to one end of the capacitor C4 and an external +3.3V power supply is connected. The other end of the capacitor C4 is grounded.

[0031] The fill light module includes a resistor R6, a resistor R7, a resistor R8, a resistor R9, a lamp D1, a lamp D2 and a transistor Q1. One end of the resistor R8 is connected to the 11th pin of the control chip U1, and the other end of the resistor R8 is respectively connected to one end of the resistor R9 and the base of the transistor Q1. The other end of the resistor R9 and the collector of the transistor Q1 are respectively grounded. The emitter of the transistor Q1 is respectively connected to one end of the lamp D1 and the lamp D2, and the other ends of the lamp D1 and the lamp D2 are respectively connected to an external +5V power supply.

[0032] The communication interface includes J1A, J1B, J1C, J2, J3, J4 and J5 terminals, the J1C terminal is connected to the 10th pin of the control chip U1, the J2 terminal and the J1A terminal are respectively connected to an external +3.3V power supply, the J1B terminal and the J5 terminal are respectively grounded, the J3 terminal is connected to the 1st pin of the control chip U1, and the J4 terminal is connected to the 20th pin of the control chip U1.

[0033] When the user uses the utility model, the utility model is first powered on, and then the main control module establishes communication with the perception module through the SDASCLI2C protocol, and controls the fill light module to work by connecting to the 10th pin of the control chip U1, so that the color in the pipe is reflected under the illumination of the lamp D1 and the lamp D2 and then transmitted to the perception module. Finally, after the control chip U1 algorithm is completed, it is transmitted to the device to be controlled through the communication interface for intelligent operation.

[0034] The fill light module connected to the main control module is internally provided with lamps D1 and D2, which are used to illuminate the pipe diameter so that the color of the liquid flowing through the liquid circulation pipe 11 is transmitted back to the control chip U1 through reflection, thereby performing the next operation.

[0035] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A pipeline color sensor, comprising a sensor body, a circuit board and an anti-interference sheath, characterized in that: The circuit board is arranged inside the sensor body, the sensor body is connected with a liquid circulation pipeline, and the anti-interference sheath is matched with the liquid circulation pipeline.

2. The pipeline color sensor according to claim 1, characterized in that: The color of the anti-interference sheath is white or black.

3. The pipeline color sensor according to claim 1, characterized in that: A rubber pad is also provided between the connection surface of the circuit board and the sensor body.

4. A control circuit for the pipeline color sensor of claim 1, comprising a main control module, a fill light module, a sensing module and a communication interface, characterized in that: The fill light module, the sensing module and the communication interface are respectively connected to the main control module.

5. The control circuit of the pipeline color sensor according to claim 4, characterized in that: The main control module includes a control chip U1, a capacitor C1, a capacitor C2, a capacitor C3, a resistor R1, a resistor R2, a resistor R3, a resistor R4 and a resistor R5. The control chip U1 is provided with pins. The 4th pin of the control chip U1 is respectively connected to one end of the capacitor C1 and the capacitor C2, and is externally connected to a +3.3V power supply. The 5th pin of the control chip U1 is respectively connected to the other end of the capacitor C1 and the capacitor C2, and is grounded. The 6th pin of the control chip U1 is respectively connected to one end of the resistor R4 and the capacitor C3, the other end of the capacitor C3 is grounded, the other end of the resistor R4 is externally connected to a +3.3V power supply, the 16th pin of the control chip U1 is respectively connected to the resistor R3 and the resistor R5, the other end of the resistor R5 is externally connected to a +3.3V power supply, and the 17th pin of the control chip U1 is respectively connected to one end of the resistor R1 and the resistor R2, and the other end of the resistor R1 is externally connected to a +3.3V power supply.

6. The control circuit of the pipeline color sensor according to claim 4, characterized in that: The sensing module includes a control chip U2 and a capacitor C4. The control chip U2 is provided with pins. The first pin of the control chip U2 is grounded, the second pin of the control chip U2 is connected to the other end of the resistor R2, the third pin of the control chip U2 is connected to the other end of the resistor R3, the third pin of the control chip U2 is connected to one end of the capacitor C4 and an external +3.3V power supply is connected. The other end of the capacitor C4 is grounded.

7. The control circuit of the pipeline color sensor according to claim 4, characterized in that: The fill light module includes a resistor R6, a resistor R7, a resistor R8, a resistor R9, a lamp D1, a lamp D2 and a transistor Q1. One end of the resistor R8 is connected to the 11th pin of the control chip U1, and the other end of the resistor R8 is respectively connected to one end of the resistor R9 and the base of the transistor Q1. The other end of the resistor R9 and the collector of the transistor Q1 are respectively grounded. The emitter of the transistor Q1 is respectively connected to one end of the lamp D1 and the lamp D2, and the other ends of the lamp D1 and the lamp D2 are respectively connected to an external +5V power supply.

8. The control circuit of the pipeline color sensor according to claim 4, characterized in that: The communication interface includes J1A, J1B, J1C, J2, J3, J4 and J5 terminals, the J1C terminal is connected to the 10th pin of the control chip U1, the J2 terminal and the J1A terminal are respectively connected to an external +3.3V power supply, the J1B terminal and the J5 terminal are respectively grounded, the J3 terminal is connected to the 1st pin of the control chip U1, and the J4 terminal is connected to the 20th pin of the control chip U1.

Images