Laboratory environment monitoring terminal

Abstract

The utility model provides a laboratory environment monitoring terminal, which relates to the field of monitoring terminals and comprises a controller U1, a display module, a temperature and humidity sensing module, a six-in-one environment monitoring sensing module and a conversion interface module. The controller U1 establishes communication with each module through a sensor communication protocol, and is externally connected with a Bluetooth antenna; the display module leads one path of GPIO port to be connected with the controller U1; the temperature and humidity sensing module comprises a temperature and humidity sensing unit and a temperature and humidity unit which are respectively connected with the controller U1 through a GPIO (General Purpose Input / Output) port; the six-in-one environment monitoring sensing module is connected with the controller U1 through a serial port; the conversion interface module is a reserved port and is connected with the controller U1 through a serial communication protocol. According to the utility model, through communication connection and data collection between the controller U1 and each module sensor, modularized development can be carried out on each part according to different requirements, the number can be increased or decreased at any time according to requirements, upgrading is facilitated, and meanwhile, the requirement of real-time monitoring of a laboratory can be met.

Description

Technical Field

[0001] The utility model relates to the field of monitoring terminals, in particular to a laboratory environment monitoring terminal. Background Art

[0002] The laboratory infrastructure is complete, and the fire protection and ventilation systems are operating well. There is currently a lack of an information-based real-time environmental monitoring system, which cannot effectively visualize environmental conditions and record environmental data over a long period of time. Unlike the complex risk conditions of scientific research laboratories, the risk level of teaching laboratories is relatively low, and the possible pollutants are relatively fixed and can be inferred.

[0003] Laboratories need to effectively manage possible risks, but currently they lack a low-cost, easy-to-develop and deploy real-time monitoring system that can be used to monitor and record environmental data over the long term, visualize data quantitatively, and provide early warnings when abnormal situations occur. Utility Model Content

[0004] Purpose of the utility model: to provide a laboratory environment monitoring terminal to solve the above-mentioned problems existing in the prior art.

[0005] Technical solution: A laboratory environment monitoring terminal includes five components: a controller U1, a display module, a temperature and humidity sensor module, a six-in-one environment monitoring sensor module and a conversion interface module.

[0006] The controller U1 establishes communication with each module through the sensor communication protocol, and is externally connected to a Bluetooth antenna; the display module is externally connected to a 3.3V voltage, and is connected to the controller U1 through a GPIO port; the temperature and humidity sensor module includes an ATH10 temperature and humidity sensor unit and an ATH20 temperature and humidity unit, both of which are externally connected to a 3.3V voltage, and are connected to the controller U1 through a GPIO port; the six-in-one environmental monitoring sensor module is connected to the controller U1 via a serial port; the conversion interface module is a reserved port, and is connected to the controller U1 through a serial communication protocol.

[0007] In a further embodiment, the controller U1 is of model EPS32-C3FH4;

[0008] The first pin of the controller U1 leads to two branches, one of which is connected to the air-core inductor L1 and grounded, and the other is connected to the air-core inductor L2 and connected to the Bluetooth antenna U2;

[0009] The second pin of the controller U1 is connected in series with the third pin, and two branches are led out, one of which is connected to the capacitor C1 and grounded, and the other is connected to the capacitor C2 and connected to the 11th pin of the controller U1; the connection end of the capacitor C2 connected to the 11th pin of the controller U1 is connected in series with the capacitor C3; the connection section between the capacitor C2 and the capacitor C3 leads out a branch and is grounded;

[0010] The 14th pin of the controller U1 is connected to the GPIO port, and leads to a branch connected in series with a resistor R1, and the other end of the resistor RI is connected to a 3.3V voltage;

[0011] The 17th terminal of the controller U1 is connected to a 3.3V voltage, and leads to a branch connected in series with a capacitor C8, and the other end of the capacitor C8 is grounded;

[0012] The 18th pin of the controller U1 is connected to the capacitor C9 and is grounded;

[0013] The 29th pin of the controller U1 is connected to the crystal oscillator X1 and is connected to the 2nd pin of the crystal oscillator X1;

[0014] Pin No. 30 of the controller U1 is connected in series with an air-core inductor L3 and is connected to pin No. 1 of the crystal oscillator X1;

[0015] A branch is drawn from the connection section between the air inductor L3 and the crystal oscillator X1 to connect the capacitor C6 and ground;

[0016] Pin 3 of the crystal oscillator X1 is connected to capacitor C7 and grounded, and pin 4 of the crystal oscillator X1 is grounded;

[0017] Pin No. 31 and Pin No. 32 of the controller U1 are connected in series and lead out two branches, one of which is connected to capacitor C4 and grounded, and the other is connected to capacitor C5 and grounded;

[0018] Pin No. 33 of the controller U1 is grounded, and the capacitor C4 and the capacitor C5 are both connected in parallel to the grounding section of pin No. 33 of the controller U1.

[0019] In a further embodiment, the display module includes a driver chip H1, and the model of the driver chip H1 is SSD1306;

[0020] The first pin of the driver chip H1 is connected to a 3.3V voltage, the second pin is connected to the ground, and the third pin and the fourth pin are both connected to the GPIO port.

[0021] In a further embodiment, the ATH10 temperature and humidity sensing unit includes a sensor U4 and a capacitor C13;

[0022] The model of the sensor U4 is ATH10;

[0023] The 1st pin and the 5th pin of the sensor U4 are connected in series, and two branches are led out; one branch is grounded, and the other branch is connected to the capacitor C13; the other end of the capacitor C13 is connected to the 4th pin of the sensor U4;

[0024] The second pin and the third pin of the sensor U4 are both connected to the GPIO interface;

[0025] The 4th pin of the sensor U4 is also connected to a 3.3V voltage.

[0026] In a further embodiment, the ATH20 temperature and humidity unit includes a sensor H2, and the model of the sensor H2 is ATH20;

[0027] The first pin of the sensor H2 is connected to a 3.3V voltage, the second pin is grounded, and the third pin and the fourth pin are both connected to the GPIO port.

[0028] In a further embodiment, the six-in-one environmental monitoring sensor module includes a sensor H6, and the model of the sensor H6 is SM300D2;

[0029] The first pin of the sensor H6 is a power supply pin, which is externally connected to a corresponding power line; the second and third pins of the sensor H6 are serial port pins, which are externally connected to a GPIO interface; and the fourth pin of the sensor H6 is grounded.

[0030] In a further embodiment, the conversion interface module includes a converter H3, and the model of the converter H3 is RS485;

[0031] The first pin of the converter H3 is a power supply pin, which is externally connected to a corresponding power line; the second and third pins of the converter H3 are both serial port pins, which are externally connected to a GPIO interface; and the fourth pin of the converter H3 is grounded.

[0032] In a further embodiment, the controller U1 is connected to the OLED display module via an I2C bus;

[0033] The OLED display module includes a display LED1; the model of the display LED1 is SK6805-EC15;

[0034] The first pin of the display LED1 is connected to the GPIO interface, the second pin is a power supply pin, which is externally connected to a corresponding power line, and the fourth pin is grounded.

[0035] Beneficial effects: The utility model relates to a laboratory environment monitoring terminal. Through the communication connection and data collection between the controller U1 and the sensors of each module, each component can be modularly developed according to different needs. It can be increased or decreased at any time according to needs, which is convenient for upgrading and can also meet the needs of real-time monitoring of the laboratory. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 1 is an overall circuit schematic diagram of the laboratory environment monitoring terminal in the embodiment.

[0037] Figure 2 Schematic diagram of the circuit principle of the controller U1 in the embodiment.

[0038] Figure 3 Schematic diagram of the circuit principle of the display module in the embodiment.

[0039] Figure 4 Schematic diagram of the circuit principle of the ATH10 temperature and humidity sensor unit in the embodiment.

[0040] Figure 5 Schematic diagram of the circuit principle of the ATH20 temperature and humidity unit in the embodiment.

[0041] Figure 6 Schematic diagram of the circuit principle of the six-in-one environmental sensor module in the embodiment.

[0042] Figure 7 Schematic diagram of the circuit principle of the conversion interface module in the embodiment.

[0043] Figure 8 Schematic diagram of the circuit principle of the OLED display module in the embodiment. DETAILED DESCRIPTION

[0044] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0045] Reference Figure 1 This embodiment discloses a laboratory environment monitoring terminal, which collects and monitors laboratory data by connecting multiple sensor modules to the controller U1. Each component is modularly developed and can be increased or decreased at any time according to demand. It has strong flexibility and simple operation combination, and can meet the needs of real-time monitoring of the laboratory. The following is a detailed description of this embodiment in combination with the circuit diagram and the actual working process.

[0046] The laboratory environment monitoring terminal includes five components: a controller U1, a display module, a temperature and humidity sensor module, a six-in-one environment monitoring sensor module and a conversion interface module.

[0047] The controller U1 establishes communication with each module through the sensor communication protocol, and is externally connected to a Bluetooth antenna; the display module is externally connected to a 3.3V voltage, and is connected to the controller U1 through a GPIO port; the temperature and humidity sensor module includes an ATH10 temperature and humidity sensor unit and an ATH20 temperature and humidity unit, both of which are externally connected to a 3.3V voltage, and are connected to the controller U1 through a GPIO port; the six-in-one environmental monitoring sensor module is connected to the controller U1 via a serial port; the conversion interface module is a reserved port, and is connected to the controller U1 through a serial communication protocol.

[0048] like Figure 2 As shown, the model of the controller U1 in this embodiment is EPS32-C3FH4;

[0049] The first pin of the controller U1 leads to two branches, one of which is connected to the hollow inductor L1 and grounded, and the other branch is connected to the hollow inductor L2 and connected to the Bluetooth antenna U2; the second pin of the controller U1 is connected in series with the third pin, and leads to two branches, one of which is connected to the capacitor C1 and grounded, and the other branch is connected to the capacitor C2 and connected to the 11th pin of the controller U1; the connection end of the capacitor C2 connected to the 11th pin of the controller U1 is connected in series with a capacitor C3; the connection section between the capacitor C2 and the capacitor C3 leads to a branch and is grounded; the 14th pin of the controller U1 is connected to the GPIO port, and leads to a branch connected in series with a resistor R1, and the other end of the resistor RI is connected to a 3.3V voltage; the 17th pin of the controller U1 is connected to a 3.3V voltage, and leads to a branch connected in series with a capacitor C8, and the capacitor C8 The other end is grounded; Pin 18 of the controller U1 is connected to capacitor C9 and grounded; Pin 29 of the controller U1 is connected to crystal oscillator X1 and connected to Pin 2 of the crystal oscillator X1; Pin 30 of the controller U1 is connected in series with an air-core inductor L3 and connected to Pin 1 of the crystal oscillator X1; a branch is led out from the connection section between the air inductor L3 and the crystal oscillator X1 to connect capacitor C6 and to ground; Pin 3 of the crystal oscillator X1 is connected to capacitor C7 and to ground, and Pin 4 of the crystal oscillator X1 is grounded; Pin 31 of the controller U1 is connected in series with Pin 32, and two branches are led out, one of which is connected to capacitor C4 and to ground, and the other branch is connected to capacitor C5 and to ground; Pin 33 of the controller U1 is grounded, and capacitor C4 and capacitor C5 are both connected in parallel to the grounding section of Pin 33 of the controller U1.

[0050] See Figure 3The display module is used to display the data collected by each sensor module in real time. The display module includes a driver chip H1, the model of the driver chip H1 is SSD1306; the first pin of the driver chip H1 is connected to a 3.3V voltage, the second pin is grounded, and the third and fourth pins are both connected to the GPIO port.

[0051] See Figure 4 The ATH10 temperature and humidity sensor unit is used for real-time transmission of sensor data. The ATH10 temperature and humidity sensor unit includes a sensor U4 and a capacitor C13; the model of the sensor U4 is ATH10; the first pin of the sensor U4 is connected in series with the fifth pin, and two branches are led out; one branch is grounded, and the other branch is connected to the capacitor C13; the other end of the capacitor C13 is connected to the fourth pin of the sensor U4; the second pin and the third pin of the sensor U4 are both connected to the GPIO interface; the fourth pin of the sensor U4 is also connected to a 3.3V voltage.

[0052] See Figure 5 The ATH20 temperature and humidity unit is used for data collection and analysis of laboratory temperature and humidity. The ATH20 temperature and humidity unit includes a sensor H2, the model of which is ATH20; the first pin of the sensor H2 is connected to a 3.3V voltage, the second pin is grounded, and the third and fourth pins are both connected to the GPIO port.

[0053] See Figure 6 The six-in-one environmental sensor module is used for collecting and analyzing temperature, humidity, PM2.5, PM10, formaldehyde and TVOC data, and adopts a serial port connection method. The six-in-one environmental monitoring sensor module includes a sensor H6, the model of which is SM300D2; the first pin of the sensor H6 is a power supply pin, which is externally connected to a corresponding power line; the second and third pins of the sensor H6 are both serial port pins, which are externally connected to a GPIO interface; the fourth pin of the sensor H6 is grounded.

[0054] See Figure 7 The conversion interface module can be expanded to connect various functional sensors that support the RS485 protocol as needed, such as formaldehyde, oxygen, carbon dioxide and other modules. It can also be connected to multi-channel transmitters and relay modules to control indoor lighting, ventilation, disinfection and other functions. At the same time, all RS485 devices can be connected in parallel.

[0055] The conversion interface module includes a converter H3, the model of which is RS485; the first pin of the converter H3 is a power supply pin, which is externally connected to a corresponding power line; the second and third pins of the converter H3 are both serial port pins, which are externally connected to a GPIO interface; and the fourth pin of the converter H3 is grounded.

[0056] See Figure 8 The OLED display module is used to display and remind the data status transmitted by each sensor module. When there is abnormal data, it can remind and warn by flashing, normally on, normally closed, etc.

[0057] The controller U1 is connected to the OLED display module via the I2C bus; the OLED display module includes a display LED1; the model of the display LED1 is SK6805-EC15; the first pin of the display LED1 is connected to the GPIO interface, the second pin is the power supply pin, which is externally connected to the corresponding power line, and the fourth pin is grounded.

[0058] Based on the above embodiments, the working process of the utility model is as follows:

[0059] After installing the sensor communication protocol, connect the controller U1 and directly configure the functional sensors it supports, including the display module, temperature and humidity sensor module, six-in-one environmental monitoring sensor module and conversion interface module. And synchronously connect the corresponding OLED display module to display the data status of each sensor module.

[0060] The controller U1 may further be configured with an external corresponding Bluetooth antenna to be configured as a relay device such as a Bluetooth gateway.

[0061] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be interpreted as limiting the present invention itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the present invention defined in the appended claims.

Claims

1. A laboratory environment monitoring terminal, characterized in that: include: Controller U1, display module, temperature and humidity sensor module, six-in-one environmental monitoring sensor module and conversion interface module; The controller U1 establishes communication with each module through the sensor communication protocol and is externally connected to a Bluetooth antenna; The display module is externally connected to a 3.3V voltage and leads a GPIO port to be connected to the controller U1; The temperature and humidity sensor module includes an ATH10 temperature and humidity sensor unit and an ATH20 temperature and humidity unit, both of which are externally connected to a 3.3V voltage, and both lead a GPIO port to connect to the controller U1; The six-in-one environmental monitoring sensor module is connected to the controller U1 via a serial port; The conversion interface module is a reserved port and is connected to the controller U1 via a serial communication protocol.

2. A laboratory environment monitoring terminal according to claim 1, characterized in that: The model of the controller U1 is EPS32-C3FH4; The first pin of the controller U1 leads to two branches, one of which is connected to the air-core inductor L1 and grounded, and the other is connected to the air-core inductor L2 and connected to the Bluetooth antenna U2; The second pin of the controller U1 is connected in series with the third pin, and two branches are led out, one of which is connected to the capacitor C1 and grounded, and the other is connected to the capacitor C2 and connected to the 11th pin of the controller U1; the connection end of the capacitor C2 connected to the 11th pin of the controller U1 is connected in series with the capacitor C3; the connection section between the capacitor C2 and the capacitor C3 leads out a branch and is grounded; The 14th pin of the controller U1 is connected to the GPIO port, and leads to a branch connected in series with a resistor R1, and the other end of the resistor RI is connected to a 3.3V voltage; The 17th terminal of the controller U1 is connected to a 3.3V voltage, and leads to a branch connected in series with a capacitor C8, and the other end of the capacitor C8 is grounded; The 18th pin of the controller U1 is connected to the capacitor C9 and is grounded; The 29th pin of the controller U1 is connected to the crystal oscillator X1 and is connected to the 2nd pin of the crystal oscillator X1; Pin No. 30 of the controller U1 is connected in series with an air-core inductor L3 and is connected to pin No. 1 of the crystal oscillator X1; A branch is drawn from the connection section between the air-core inductor L3 and the crystal oscillator X1 to connect the capacitor C6 and ground; Pin 3 of the crystal oscillator X1 is connected to capacitor C7 and grounded, and pin 4 of the crystal oscillator X1 is grounded; Pin No. 31 and Pin No. 32 of the controller U1 are connected in series and lead out two branches, one of which is connected to capacitor C4 and grounded, and the other is connected to capacitor C5 and grounded; Pin No. 33 of the controller U1 is grounded, and the capacitor C4 and the capacitor C5 are both connected in parallel to the grounding section of pin No. 33 of the controller U1.

3. A laboratory environment monitoring terminal according to claim 1, characterized in that: The display module includes a driver chip H1, and the model of the driver chip H1 is SSD1306; The first pin of the driver chip H1 is connected to a 3.3V voltage, the second pin is connected to the ground, and the third pin and the fourth pin are both connected to the GPIO port.

4. A laboratory environment monitoring terminal according to claim 1, characterized in that: The ATH10 temperature and humidity sensing unit includes a sensor U4 and a capacitor C13; The model of the sensor U4 is ATH10; The 1st pin and the 5th pin of the sensor U4 are connected in series, and two branches are led out; one branch is grounded, and the other branch is connected to the capacitor C13; the other end of the capacitor C13 is connected to the 4th pin of the sensor U4; The second pin and the third pin of the sensor U4 are both connected to the GPIO interface; The 4th pin of the sensor U4 is also connected to a 3.3V voltage.

5. A laboratory environment monitoring terminal according to claim 4, characterized in that: The ATH20 temperature and humidity unit includes a sensor H2, and the model of the sensor H2 is ATH20; The first pin of the sensor H2 is connected to a 3.3V voltage, the second pin is grounded, and the third pin and the fourth pin are both connected to the GPIO port.

6. A laboratory environment monitoring terminal according to claim 2, characterized in that: The six-in-one environmental monitoring sensor module includes a sensor H6, and the model of the sensor H6 is SM300D2; The first pin of the sensor H6 is a power supply pin, which is externally connected to a corresponding power line; the second and third pins of the sensor H6 are serial port pins, which are externally connected to a GPIO interface; and the fourth pin of the sensor H6 is grounded.

7. A laboratory environment monitoring terminal according to claim 1, characterized in that: The conversion interface module includes a converter H3, and the model of the converter H3 is RS485; The first pin of the converter H3 is a power supply pin, which is externally connected to a corresponding power line; the second and third pins of the converter H3 are both serial port pins, which are externally connected to a GPIO interface; and the fourth pin of the converter H3 is grounded.

8. A laboratory environment monitoring terminal according to claim 1, characterized in that: The controller U1 is connected to the OLED display module via an I2C bus; The OLED display module includes a display LED1; the model of the display LED1 is SK6805-EC15; The first pin of the display LED1 is connected to the GPIO interface, the second pin is a power supply pin, which is externally connected to a corresponding power line, and the fourth pin is grounded.

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