Temperature sensor adopting network transmission

Abstract

The utility model discloses a temperature sensor adopting network transmission, which comprises a temperature acquisition circuit, a control circuit, a wireless transmission circuit and a display circuit, and is characterized in that the output end of the temperature acquisition circuit is electrically connected with the acquisition end of the control circuit; the wireless transmission circuit is electrically connected with the communication end of the control circuit, and the display circuit is electrically connected with the display output end of the control circuit. According to the temperature sensor adopting network transmission disclosed by the utility model, the temperature acquisition circuit, the control circuit, the wireless transmission circuit and the display circuit are linked, the acquired temperature data are remotely transmitted in a wireless mode, and the temperature sensor has the advantages of convenience in transmission, high efficiency, high practicability and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of temperature data transmission, and in particular relates to a temperature sensor adopting network transmission. Background Art

[0002] Temperature sensors are often used in commercial application industries such as catering food processing and cooking food. Most of the existing temperature sensors are wired to transmit the collected data to the background. If the distance from the collection point to the background is long, then the transmission method through wiring is inconvenient, time-consuming and labor-intensive.

[0003] Therefore, further improvements are made to the above problems. Summary of the invention

[0004] The main purpose of the utility model is to provide a temperature sensor using network transmission, which is linked by a temperature acquisition circuit, a control circuit, a wireless transmission circuit and a display circuit, and transmits the collected temperature data over a long distance by wireless means, and has the advantages of convenient transmission, high efficiency and high practicality.

[0005] To achieve the above purpose, the utility model provides a temperature sensor using network transmission, including a temperature acquisition circuit, a control circuit, a wireless transmission circuit and a display circuit, wherein the output end of the temperature acquisition circuit is electrically connected to the acquisition end of the control circuit, the wireless transmission circuit is electrically connected to the communication end of the control circuit, and the display circuit is electrically connected to the display output end of the control circuit, wherein:

[0006] The temperature acquisition circuit includes a temperature interface CN1 (connected to a temperature sensing head) and an analog-to-digital converter U4, wherein a first end (RTD1) of the temperature interface CN1 is electrically connected to pin 10 of the analog-to-digital converter U4 through a resistor R23, a second end (RTD2) of the temperature interface CN1 is electrically connected to pin 11 of the analog-to-digital converter U4 through a resistor R24, and a third end (RTD3) of the temperature interface CN1 is electrically connected to pin 5 of the analog-to-digital converter U4 through a resistor R29 and is electrically connected to pin 6 of the analog-to-digital converter U4 through resistors R28 and R30;

[0007] The control circuit includes a controller U2, pin 20 of the analog-to-digital converter U4 is electrically connected to pin 17 of the controller U2, pin 19 of the analog-to-digital converter U4 is electrically connected to pin 20 of the controller U2, pin 18 of the analog-to-digital converter U4 is electrically connected to pin 18 of the controller U2, pin 17 of the analog-to-digital converter U4 is electrically connected to pin 11 of the controller U2, pin 16 of the analog-to-digital converter U4 is electrically connected to pin 34 of the controller U2, and pin 15 of the analog-to-digital converter U4 is electrically connected to pin 35 of the controller U2;

[0008] The wireless transmission circuit includes a communication chip U1 and a communication card holder CARD1 (preferably a 4G card), the communication chip U1 is electrically connected to the controller U2 and the communication chip U1 is also electrically connected to the communication card holder CARD1;

[0009] The display circuit includes a display controller U3 and a display FPC1, the display controller U3 is electrically connected to the controller U2 and the display FPC1 is electrically connected to the display controller U3;

[0010] The model of the analog-to-digital converter U4 is: ADS1247IPWR; the model of the controller U2 is: ESP32-PICO-D4; the model of the communication chip U1 is: M5311; the model of the display controller U3 is: XPT2046.

[0011] As a further preferred technical solution of the above technical solution, the 17th pin of the communication chip U1 is electrically connected to the collector of the transistor Q1 and the base of the transistor Q1 is electrically connected to the 42nd pin of the controller U2 through the resistor R1;

[0012] Pin 19 of the communication chip U1 is electrically connected to the collector of the transistor Q2 and the base of the transistor Q2 is electrically connected to pin 14 of the controller U2 via a resistor R4;

[0013] Pin 10 of the communication chip U1 is electrically connected to the collector of the transistor Q3 and the collector of the transistor Q3 is electrically connected to pin 29 of the controller U2;

[0014] Pin 9 of the communication chip U1 is electrically connected to the emitter of the transistor Q4 and the collector of the transistor Q4 is electrically connected to pin 28 of the controller U2.

[0015] As a further preferred technical solution of the above technical solution, pin 12 of the communication chip U1 is electrically connected to the seventh end of the communication card socket CARD1, pin 13 of the communication chip U1 is electrically connected to the sixth end of the communication card socket CARD1, pin 14 of the communication chip U1 is electrically connected to the third end of the communication card socket CARD1, and pin 15 of the communication chip U1 is electrically connected to the eighth end of the communication card socket CARD1.

[0016] As a further preferred technical solution of the above technical solution, pin 15 of the controller U2 is electrically connected to the base of the transistor Q6 through a resistor R21, a first collector path of the transistor Q6 is electrically connected to the ninth terminal of the display FPC1 through a resistor R16, a second collector path of the transistor Q6 is electrically connected to the eighth terminal of the display FPC1 through a resistor R17, a third collector path of the transistor Q6 is electrically connected to the seventh terminal of the display FPC1 through a resistor R18, and a fourth collector path of the transistor Q6 is electrically connected to the sixth terminal of the display FPC1 through a resistor R20;

[0017] Pin 15 of the display controller U3 is electrically connected to pin 21 of the controller U2, pin 16 of the controller U2 is electrically connected to the seventeenth end of the display FPC1, pin 22 of the controller U2 is electrically connected to the fifteenth end of the display FPC1, and pin 24 of the controller U2 is electrically connected to the fourteenth end of the display FPC1.

[0018] As a further preferred technical solution of the above technical solution, it also includes an alarm circuit, which includes an alarm BUZZER1. Pin 36 of the controller U2 is electrically connected to the base of the transistor Q5 through the resistor R14, and the collector of the transistor Q5 is electrically connected to the alarm BUZZER1 (for temperature alarm). BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model discloses a temperature collection circuit diagram of a temperature sensor using network transmission.

[0020] Figure 2 The utility model discloses a control circuit diagram of a temperature sensor adopting network transmission.

[0021] Figure 3 The utility model discloses a wireless transmission circuit diagram of a temperature sensor using network transmission.

[0022] Figure 4 The utility model discloses a display circuit diagram of a temperature sensor adopting network transmission.

[0023] Figure 5 The utility model discloses an alarm circuit diagram of a temperature sensor using network transmission. DETAILED DESCRIPTION

[0024] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0025] The utility model discloses a temperature sensor using network transmission. The specific embodiments of the utility model are further described below in conjunction with preferred embodiments.

[0026] In the embodiments of the present invention, those skilled in the art will note that the temperature sensing head and the like involved in the present invention may be regarded as prior art.

[0027] Preferred embodiments.

[0028] like Figure 1-5 As shown, the utility model discloses a temperature sensor using network transmission, including a temperature acquisition circuit, a control circuit, a wireless transmission circuit and a display circuit, wherein the output end of the temperature acquisition circuit is electrically connected to the acquisition end of the control circuit, the wireless transmission circuit is electrically connected to the communication end of the control circuit, and the display circuit is electrically connected to the display output end of the control circuit, wherein:

[0029] The temperature acquisition circuit includes a temperature interface CN1 (connected to a temperature sensing head) and an analog-to-digital converter U4, wherein a first end (RTD1) of the temperature interface CN1 is electrically connected to pin 10 of the analog-to-digital converter U4 through a resistor R23, a second end (RTD2) of the temperature interface CN1 is electrically connected to pin 11 of the analog-to-digital converter U4 through a resistor R24, and a third end (RTD3) of the temperature interface CN1 is electrically connected to pin 5 of the analog-to-digital converter U4 through a resistor R29 and is electrically connected to pin 6 of the analog-to-digital converter U4 through resistors R28 and R30;

[0030] The control circuit includes a controller U2, pin 20 of the analog-to-digital converter U4 is electrically connected to pin 17 of the controller U2, pin 19 of the analog-to-digital converter U4 is electrically connected to pin 20 of the controller U2, pin 18 of the analog-to-digital converter U4 is electrically connected to pin 18 of the controller U2, pin 17 of the analog-to-digital converter U4 is electrically connected to pin 11 of the controller U2, pin 16 of the analog-to-digital converter U4 is electrically connected to pin 34 of the controller U2, and pin 15 of the analog-to-digital converter U4 is electrically connected to pin 35 of the controller U2;

[0031] The wireless transmission circuit includes a communication chip U1 and a communication card holder CARD1 (preferably a 4G card), the communication chip U1 is electrically connected to the controller U2 and the communication chip U1 is also electrically connected to the communication card holder CARD1;

[0032] The display circuit includes a display controller U3 and a display FPC1, the display controller U3 is electrically connected to the controller U2 and the display FPC1 is electrically connected to the display controller U3;

[0033] The model of the analog-to-digital converter U4 is: ADS1247IPWR; the model of the controller U2 is: ESP32-PICO-D4; the model of the communication chip U1 is: M5311; the model of the display controller U3 is: XPT2046.

[0034] Specifically, the pin 17 of the communication chip U1 is electrically connected to the collector of the transistor Q1 and the base of the transistor Q1 is electrically connected to the pin 42 of the controller U2 through the resistor R1;

[0035] Pin 19 of the communication chip U1 is electrically connected to the collector of the transistor Q2 and the base of the transistor Q2 is electrically connected to pin 14 of the controller U2 via a resistor R4;

[0036] Pin 10 of the communication chip U1 is electrically connected to the collector of the transistor Q3 and the collector of the transistor Q3 is electrically connected to pin 29 of the controller U2;

[0037] Pin 9 of the communication chip U1 is electrically connected to the emitter of the transistor Q4 and the collector of the transistor Q4 is electrically connected to pin 28 of the controller U2.

[0038] More specifically, pin 12 of the communication chip U1 is electrically connected to the seventh end of the communication card socket CARD1, pin 13 of the communication chip U1 is electrically connected to the sixth end of the communication card socket CARD1, pin 14 of the communication chip U1 is electrically connected to the third end of the communication card socket CARD1, and pin 15 of the communication chip U1 is electrically connected to the eighth end of the communication card socket CARD1.

[0039] Furthermore, the 15th pin of the controller U2 is electrically connected to the base of the transistor Q6 through the resistor R21, the first collector path of the transistor Q6 is electrically connected to the ninth terminal of the display FPC1 through the resistor R16, the second collector path of the transistor Q6 is electrically connected to the eighth terminal of the display FPC1 through the resistor R17, the third collector path of the transistor Q6 is electrically connected to the seventh terminal of the display FPC1 through the resistor R18, and the fourth collector path of the transistor Q6 is electrically connected to the sixth terminal of the display FPC1 through the resistor R20;

[0040] Pin 15 of the display controller U3 is electrically connected to pin 21 of the controller U2, pin 16 of the controller U2 is electrically connected to the seventeenth end of the display FPC1, pin 22 of the controller U2 is electrically connected to the fifteenth end of the display FPC1, and pin 24 of the controller U2 is electrically connected to the fourteenth end of the display FPC1.

[0041] Furthermore, it also includes an alarm circuit, which includes an alarm BUZZER1. Pin 36 of the controller U2 is electrically connected to the base of the transistor Q5 through a resistor R14, and the collector of the transistor Q5 is electrically connected to the alarm BUZZER1 (for temperature alarm).

[0042] For this utility model:

[0043] The collected temperature is transmitted to the control circuit through the temperature acquisition circuit. After processing, the temperature data is displayed in real time through the display circuit on the one hand, and remotely transmitted to the background terminal through the wireless transmission circuit on the other hand, and an alarm is issued through the alarm circuit when the temperature exceeds the set threshold.

[0044] It is worth mentioning that the technical features such as the temperature sensing head involved in this utility model patent application should be regarded as the prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected according to the conventional selection in the field, and should not be regarded as the invention point of this utility model patent. This utility model patent will not be further elaborated.

[0045] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A temperature sensor using network transmission, characterized in that: It includes a temperature acquisition circuit, a control circuit, a wireless transmission circuit and a display circuit, wherein the output end of the temperature acquisition circuit is electrically connected to the acquisition end of the control circuit, the wireless transmission circuit is electrically connected to the communication end of the control circuit, and the display circuit is electrically connected to the display output end of the control circuit, wherein: The temperature acquisition circuit includes a temperature interface CN1 and an analog-to-digital converter U4, wherein a first end of the temperature interface CN1 is electrically connected to pin 10 of the analog-to-digital converter U4 through a resistor R23, a second end of the temperature interface CN1 is electrically connected to pin 11 of the analog-to-digital converter U4 through a resistor R24, and a third end of the temperature interface CN1 is electrically connected to pin 5 of the analog-to-digital converter U4 through a resistor R29 and is electrically connected to pin 6 of the analog-to-digital converter U4 through resistors R28 and R30; The control circuit includes a controller U2, pin 20 of the analog-to-digital converter U4 is electrically connected to pin 17 of the controller U2, pin 19 of the analog-to-digital converter U4 is electrically connected to pin 20 of the controller U2, pin 18 of the analog-to-digital converter U4 is electrically connected to pin 18 of the controller U2, pin 17 of the analog-to-digital converter U4 is electrically connected to pin 11 of the controller U2, pin 16 of the analog-to-digital converter U4 is electrically connected to pin 34 of the controller U2, and pin 15 of the analog-to-digital converter U4 is electrically connected to pin 35 of the controller U2; The wireless transmission circuit includes a communication chip U1 and a communication card holder CARD1, wherein the communication chip U1 is electrically connected to the controller U2 and the communication chip U1 is also electrically connected to the communication card holder CARD1; The display circuit includes a display controller U3 and a display FPC1, the display controller U3 is electrically connected to the controller U2 and the display FPC1 is electrically connected to the display controller U3; The model of the analog-to-digital converter U4 is: ADS1247IPWR; the model of the controller U2 is: ESP32-PICO-D4; the model of the communication chip U1 is: M5311; the model of the display controller U3 is: XPT2046.

2. A temperature sensor using network transmission according to claim 1, characterized in that: Pin 17 of the communication chip U1 is electrically connected to the collector of the transistor Q1 and the base of the transistor Q1 is electrically connected to pin 42 of the controller U2 via the resistor R1; Pin 19 of the communication chip U1 is electrically connected to the collector of the transistor Q2 and the base of the transistor Q2 is electrically connected to pin 14 of the controller U2 via a resistor R4; Pin 10 of the communication chip U1 is electrically connected to the collector of the transistor Q3 and the collector of the transistor Q3 is electrically connected to pin 29 of the controller U2; Pin 9 of the communication chip U1 is electrically connected to the emitter of the transistor Q4 and the collector of the transistor Q4 is electrically connected to pin 28 of the controller U2.

3. A temperature sensor using network transmission according to claim 2, characterized in that: Pin 12 of the communication chip U1 is electrically connected to the seventh end of the communication card holder CARD1, pin 13 of the communication chip U1 is electrically connected to the sixth end of the communication card holder CARD1, pin 14 of the communication chip U1 is electrically connected to the third end of the communication card holder CARD1, and pin 15 of the communication chip U1 is electrically connected to the eighth end of the communication card holder CARD1.

4. A temperature sensor using network transmission according to claim 3, characterized in that: The 15th pin of the controller U2 is electrically connected to the base of the transistor Q6 through the resistor R21, the first collector path of the transistor Q6 is electrically connected to the ninth terminal of the display FPC1 through the resistor R16, the second collector path of the transistor Q6 is electrically connected to the eighth terminal of the display FPC1 through the resistor R17, the third collector path of the transistor Q6 is electrically connected to the seventh terminal of the display FPC1 through the resistor R18, and the fourth collector path of the transistor Q6 is electrically connected to the sixth terminal of the display FPC1 through the resistor R20; Pin 15 of the display controller U3 is electrically connected to pin 21 of the controller U2, pin 16 of the controller U2 is electrically connected to the seventeenth end of the display FPC1, pin 22 of the controller U2 is electrically connected to the fifteenth end of the display FPC1, and pin 24 of the controller U2 is electrically connected to the fourteenth end of the display FPC1.

5. A temperature sensor using network transmission according to claim 4, characterized in that: It also includes an alarm circuit, which includes an alarm BUZZER1. Pin 36 of the controller U2 is electrically connected to the base of the transistor Q5 through a resistor R14, and the collector of the transistor Q5 is electrically connected to the alarm BUZZER1.

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