Intelligent instrumented solenoid valve acquisition measurement and control circuit

Abstract

The utility model discloses an intelligent instrumented solenoid valve acquisition measurement and control circuit, which comprises a control execution circuit, a data acquisition circuit, a communication circuit and a display circuit, the control execution circuit comprises a controller U7, and the data acquisition circuit comprises a temperature acquisition circuit, a pressure acquisition circuit and a gas concentration acquisition circuit. The temperature acquisition circuit comprises a connector CN3, and a second end of the connector CN3 is electrically connected with a pin 15 of the controller U7. According to the intelligent instrumented solenoid valve acquisition measurement and control circuit disclosed by the utility model, linkage is carried out through the control execution circuit, the data acquisition circuit, the communication circuit and the display circuit, internal and external environment data of a solenoid valve are monitored in real time, and the data are transmitted to a background server through the communication circuit, so that remote monitoring and control are realized; and when data abnormity is monitored, automatic turn-off is carried out, and the system has the advantages of intelligence, high safety, high practicability and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas emergency shut-off solenoid valves, and particularly relates to an intelligent Internet of Things solenoid valve acquisition, measurement and control circuit. Background Art

[0002] The gas emergency shut-off solenoid valve is a safety device mainly used in gas transmission and distribution systems to cut off the gas supply when a gas leak or other emergency situation is detected to prevent accidents.

[0003] Many existing gas emergency shut-off solenoid valves simply have a shut-off function and are relatively simple in function. They do not have the functions of collecting internal and external environment data, remote monitoring, etc., and are not suitable for current intelligent requirements.

[0004] Therefore, further improvements are made to the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide an intelligent Internet of Things solenoid valve acquisition and measurement control circuit, which is linked through the control execution circuit, data acquisition circuit, communication circuit and display circuit to monitor the internal and external environmental data of the solenoid valve in real time, and transmit the data to the background server through the communication circuit to realize remote monitoring and control, and automatically shut down when abnormal data is detected. It has the advantages of intelligence, high safety and high practicality.

[0006] To achieve the above objectives, the present invention provides an intelligent IoT solenoid valve acquisition and measurement control circuit, including a control execution circuit, a data acquisition circuit, a communication circuit, and a display circuit, wherein:

[0007] The control execution circuit includes a controller U7, and the data acquisition circuit includes a temperature acquisition circuit, a pressure (air pressure) acquisition circuit, and a gas concentration acquisition circuit (for collecting gas concentration outside the solenoid valve), wherein:

[0008] The temperature acquisition circuit includes a connector CN3 (connected to a temperature sensor), and a second end of the connector CN3 is electrically connected to pin 15 of the controller U7;

[0009] The pressure acquisition circuit includes a connector CN1 (connected to the air pressure sensor MPM258), a third end of the connector CN1 is electrically connected to pin 19 of the controller U7 through a resistor R23, and a fourth end of the connector CN1 is electrically connected to pin 20 of the controller U7 through a resistor R24;

[0010] The gas concentration acquisition circuit includes a connector CN2 (connected to the concentration sensor MC226) and an op amp U11. The second end of the connector CN2 is electrically connected to the negative input terminal of the op amp U11 via a resistor R18. A resistor R32 is connected between the negative input terminal and the output terminal of the op amp U11. The output terminal of the op amp U11 is electrically connected to pin 18 of the controller U7 via a resistor R20.

[0011] The communication circuit includes a communication chip U1 and a level converter U2, wherein pin 9 of the communication chip U1 is electrically connected to pin 7 of the level converter U2 via a resistor R18, pin 10 of the communication chip U1 is electrically connected to pin 6 of the level converter U2 via a resistor R19, pin 17 of the communication chip U1 is electrically connected to pin 11 of the controller U7 via a resistor R12, pin 2 of the level converter U2 is electrically connected to pin 2 of the controller U7, and pin 3 of the level converter U2 is electrically connected to pin 1 of the controller U7;

[0012] The display circuit includes a display OLED2, the SCL end of the display OLED2 is electrically connected to the 28 pin of the controller U7 through a resistor R5, the SI end of the display OLED2 is electrically connected to the 27 pin of the controller U7 through a resistor R7, and the RES end of the display OLED2 is electrically connected to the 31 pin of the controller U7 through a resistor R18.

[0013] As a further preferred technical solution of the above technical solution, the display circuit further includes a Hall element U21, a Hall element U22, a Hall element U23 and a Hall element U24, wherein (the Hall element is installed on the display screen, and an explosion-proof glass cover is installed outside the display screen. When the relevant parameters of the current solenoid valve need to be set, the operation can be performed by approaching the corresponding Hall element with a magnetic pen. U21 is used to wake up the display screen, U22 is used to switch pages, U23 is used to increase parameters, such as the upper limit of the alarm temperature, and U24 is used to decrease parameters, such as the lower limit of the alarm temperature):

[0014] Pin 2 of the Hall element U21 is electrically connected to pin 30 of the controller U7;

[0015] Pin 2 of the Hall element U22 is electrically connected to pin 29 of the controller U7;

[0016] Pin 2 of the Hall element U23 is electrically connected to pin 26 of the controller U7;

[0017] Pin 2 of the Hall element U24 is electrically connected to pin 25 of the controller U7.

[0018] As a further preferred technical solution of the above technical solution, it also includes a power control circuit, which includes a voltage regulator U31, a voltage regulator U32, a voltage regulator U33, a voltage regulator U34 and a voltage regulator U35 (for controlling the power supply of each sensor, display screen and communication chip to be turned off), wherein:

[0019] Pin 3 of the voltage regulator U31 is electrically connected to pin 17 of the controller U7 and pin 5 of the voltage regulator U31 is electrically connected to the first end of the connector CN3;

[0020] Pin 3 of the voltage regulator U32 is electrically connected to pin 21 of the controller U7 and pin 5 of the voltage regulator U32 is electrically connected to the first end of the connector CN1;

[0021] Pin 3 of the voltage regulator U33 is electrically connected to pin 12 of the controller U7 and pin 5 of the voltage regulator U33 is electrically connected to pins 31 and 32 of the communication chip U1;

[0022] Pin 3 of the voltage regulator U34 is electrically connected to pin 38 of the controller U7 and pin 5 of the voltage regulator U34 is electrically connected to the RES terminal of the display OLED2;

[0023] Pin 3 of the voltage regulator U35 is electrically connected to pin 46 of the controller U7 , and pin 5 of the voltage regulator U35 is electrically connected to the first end of the connector CN2 .

[0024] As a further preferred technical solution of the above technical solution, the positive input terminal of the operational amplifier U11 is electrically connected to the first end of the connector CN2 through the resistor R13 and the resistor R12.

[0025] As a further preferred technical solution of the above technical solution, one end of the resistor R20 away from the operational amplifier U11 is grounded through a capacitor C48. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a control execution circuit diagram of the utility model.

[0027] Figure 2 This is a data acquisition circuit diagram of the utility model.

[0028] Figure 3 This is a communication circuit diagram of the utility model.

[0029] Figure 4 It is a display circuit diagram of the utility model.

[0030] Figure 5 This is a power supply control circuit diagram of the utility model. DETAILED DESCRIPTION

[0031] The following description is intended to disclose the present invention and enable those skilled in the art to implement the present invention. The preferred embodiments described below are provided for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0032] The utility model discloses an intelligent Internet of Things solenoid valve acquisition, measurement and control circuit. The specific embodiments of the utility model are further described below in conjunction with preferred embodiments.

[0033] In the embodiments of the present invention, those skilled in the art will note that the emergency shut-off solenoid valve and the like involved in the present invention may be regarded as prior art.

[0034] Preferred embodiment.

[0035] like Figure 1-5 As shown, the utility model discloses an intelligent IoT solenoid valve acquisition and measurement control circuit, which is applied to the emergency shut-off solenoid valve, including a control execution circuit, a data acquisition circuit, a communication circuit and a display circuit, wherein:

[0036] The control execution circuit includes a controller U7, and the data acquisition circuit includes a temperature acquisition circuit, a pressure (air pressure) acquisition circuit, and a gas concentration acquisition circuit (for collecting gas concentration outside the solenoid valve), wherein:

[0037] The temperature acquisition circuit includes a connector CN3 (connected to a temperature sensor), and a second end of the connector CN3 is electrically connected to pin 15 of the controller U7;

[0038] The pressure acquisition circuit includes a connector CN1 (connected to the air pressure sensor MPM258), a third end of the connector CN1 is electrically connected to pin 19 of the controller U7 through a resistor R23, and a fourth end of the connector CN1 is electrically connected to pin 20 of the controller U7 through a resistor R24;

[0039] The gas concentration acquisition circuit includes a connector CN2 (connected to the concentration sensor MC226) and an op amp U11. The second end of the connector CN2 is electrically connected to the negative input terminal of the op amp U11 via a resistor R18. A resistor R32 is connected between the negative input terminal and the output terminal of the op amp U11. The output terminal of the op amp U11 is electrically connected to pin 18 of the controller U7 via a resistor R20.

[0040] The communication circuit includes a communication chip U1 and a level converter U2, wherein pin 9 of the communication chip U1 is electrically connected to pin 7 of the level converter U2 via a resistor R18, pin 10 of the communication chip U1 is electrically connected to pin 6 of the level converter U2 via a resistor R19, pin 17 of the communication chip U1 is electrically connected to pin 11 of the controller U7 via a resistor R12, pin 2 of the level converter U2 is electrically connected to pin 2 of the controller U7, and pin 3 of the level converter U2 is electrically connected to pin 1 of the controller U7;

[0041] The display circuit includes a display OLED2, the SCL end of the display OLED2 is electrically connected to the 28 pin of the controller U7 through a resistor R5, the SI end of the display OLED2 is electrically connected to the 27 pin of the controller U7 through a resistor R7, and the RES end of the display OLED2 is electrically connected to the 31 pin of the controller U7 through a resistor R18.

[0042] Specifically, the display circuit also includes Hall element U21, Hall element U22, Hall element U23 and Hall element U24, wherein (the Hall element is installed on the display screen, and an explosion-proof glass cover is installed outside the display screen. When the relevant parameters of the current solenoid valve need to be set, the operation can be performed by approaching the corresponding Hall element with a magnetic pen. U21 is used to wake up the display screen, U22 is used to switch pages, U23 is used to increase parameters, such as the upper limit of the alarm temperature, and U24 is used to decrease parameters, such as the lower limit of the alarm temperature):

[0043] Pin 2 of the Hall element U21 is electrically connected to pin 30 of the controller U7;

[0044] Pin 2 of the Hall element U22 is electrically connected to pin 29 of the controller U7;

[0045] Pin 2 of the Hall element U23 is electrically connected to pin 26 of the controller U7;

[0046] Pin 2 of the Hall element U24 is electrically connected to pin 25 of the controller U7.

[0047] More specifically, it also includes a power control circuit, which includes a voltage regulator U31, a voltage regulator U32, a voltage regulator U33, a voltage regulator U34 and a voltage regulator U35 (for controlling the power supply of each sensor, display screen and communication chip to be turned off), wherein:

[0048] Pin 3 of the voltage regulator U31 is electrically connected to pin 17 of the controller U7 and pin 5 of the voltage regulator U31 is electrically connected to the first end of the connector CN3;

[0049] Pin 3 of the voltage regulator U32 is electrically connected to pin 21 of the controller U7 and pin 5 of the voltage regulator U32 is electrically connected to the first end of the connector CN1;

[0050] Pin 3 of the voltage regulator U33 is electrically connected to pin 12 of the controller U7 and pin 5 of the voltage regulator U33 is electrically connected to pins 31 and 32 of the communication chip U1;

[0051] Pin 3 of the voltage regulator U34 is electrically connected to pin 38 of the controller U7 and pin 5 of the voltage regulator U34 is electrically connected to the RES terminal of the display OLED2;

[0052] Pin 3 of the voltage regulator U35 is electrically connected to pin 46 of the controller U7 , and pin 5 of the voltage regulator U35 is electrically connected to the first end of the connector CN2 .

[0053] Furthermore, the positive input terminal of the operational amplifier U11 is electrically connected to the first end of the connector CN2 through the resistor R13 and the resistor R12.

[0054] Furthermore, one end of the resistor R20 away from the operational amplifier U11 is grounded via a capacitor C48.

[0055] It is worth mentioning that the technical features such as the emergency shut-off solenoid valve involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional options in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated.

[0056] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. An intelligent IoT solenoid valve acquisition, measurement and control circuit, characterized in that: It includes control execution circuit, data acquisition circuit, communication circuit and display circuit, among which: The control execution circuit includes a controller U7, and the data acquisition circuit includes a temperature acquisition circuit, a pressure acquisition circuit, and a gas concentration acquisition circuit, wherein: The temperature acquisition circuit includes a connector CN3, and a second end of the connector CN3 is electrically connected to pin 15 of the controller U7; The pressure acquisition circuit includes a connector CN1, a third end of the connector CN1 is electrically connected to pin 19 of the controller U7 through a resistor R23, and a fourth end of the connector CN1 is electrically connected to pin 20 of the controller U7 through a resistor R24; The gas concentration acquisition circuit includes a connector CN2 and an op amp U11. The second end of the connector CN2 is electrically connected to the negative input terminal of the op amp U11 via a resistor R18. A resistor R32 is connected between the negative input terminal and the output terminal of the op amp U11. The output terminal of the op amp U11 is electrically connected to pin 18 of the controller U7 via a resistor R20. The communication circuit includes a communication chip U1 and a level converter U2, wherein pin 9 of the communication chip U1 is electrically connected to pin 7 of the level converter U2 via a resistor R18, pin 10 of the communication chip U1 is electrically connected to pin 6 of the level converter U2 via a resistor R19, pin 17 of the communication chip U1 is electrically connected to pin 11 of the controller U7 via a resistor R12, pin 2 of the level converter U2 is electrically connected to pin 2 of the controller U7, and pin 3 of the level converter U2 is electrically connected to pin 1 of the controller U7; The display circuit includes a display OLED2, the SCL end of the display OLED2 is electrically connected to the 28 pin of the controller U7 through a resistor R5, the SI end of the display OLED2 is electrically connected to the 27 pin of the controller U7 through a resistor R7, and the RES end of the display OLED2 is electrically connected to the 31 pin of the controller U7 through a resistor R18.

2. The intelligent IoT solenoid valve acquisition, measurement and control circuit according to claim 1 is characterized in that: The display circuit further includes a Hall element U21, a Hall element U22, a Hall element U23 and a Hall element U24, wherein: Pin 2 of the Hall element U21 is electrically connected to pin 30 of the controller U7; Pin 2 of the Hall element U22 is electrically connected to pin 29 of the controller U7; Pin 2 of the Hall element U23 is electrically connected to pin 26 of the controller U7; Pin 2 of the Hall element U24 is electrically connected to pin 25 of the controller U7.

3. The intelligent IoT solenoid valve acquisition, measurement and control circuit according to claim 2 is characterized in that: It also includes a power control circuit, which includes a voltage stabilizer U31, a voltage stabilizer U32, a voltage stabilizer U33, a voltage stabilizer U34 and a voltage stabilizer U35, wherein: Pin 3 of the voltage regulator U31 is electrically connected to pin 17 of the controller U7 and pin 5 of the voltage regulator U31 is electrically connected to the first end of the connector CN3; Pin 3 of the voltage regulator U32 is electrically connected to pin 21 of the controller U7 and pin 5 of the voltage regulator U32 is electrically connected to the first end of the connector CN1; Pin 3 of the voltage regulator U33 is electrically connected to pin 12 of the controller U7 and pin 5 of the voltage regulator U33 is electrically connected to pins 31 and 32 of the communication chip U1; Pin 3 of the voltage regulator U34 is electrically connected to pin 38 of the controller U7 and pin 5 of the voltage regulator U34 is electrically connected to the RES terminal of the display OLED2; Pin 3 of the voltage regulator U35 is electrically connected to pin 46 of the controller U7 , and pin 5 of the voltage regulator U35 is electrically connected to the first end of the connector CN2 .

4. The intelligent IoT solenoid valve acquisition, measurement and control circuit according to claim 3 is characterized in that: The positive input terminal of the operational amplifier U11 is electrically connected to the first end of the connector CN2 through the resistors R13 and R12.

5. The intelligent IoT solenoid valve acquisition, measurement and control circuit according to claim 4 is characterized in that: One end of the resistor R20 away from the operational amplifier U11 is grounded via a capacitor C48.

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