CN210691082U

CN210691082U - Data monitoring device and system

Info

Publication number: CN210691082U
Application number: CN201921974131.4U
Authority: CN
Inventors: 卢峰; 汪维清; 刘国辉; 杨瑞; 鲁大伟
Original assignee: Henan Aiou Electronic Technology Co ltd
Current assignee: Henan Aiou Electronic Technology Co ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-06-05
Anticipated expiration: 2029-11-14

Abstract

The application discloses data monitoring device and system. The data monitoring device comprises a data acquisition unit, a data analysis unit, a data processing unit, a network transmission unit and a power supply unit; the input end of the data acquisition unit is used for receiving various measurement signals, and the output end of the data acquisition unit is connected with the input end of the data processing unit; the data analysis unit is connected with the data processing unit; the output end of the data processing unit is connected with the input end of the network transmission unit; the input end of the power supply unit is connected with the 220V output end of the municipal power supply, and the output end of the power supply unit is electrically connected with the data acquisition unit, the data analysis unit, the data processing unit and the network transmission unit. The method and the device have the advantages that the calculation processing pressure of the background server is greatly reduced, the data analysis and judgment are not influenced by network delay any more, and the situation that the field response is not timely is avoided; meanwhile, a centralized power supply mode is adopted, and each unit does not need to be supplied with power independently, so that the power supply cost is reduced.

Description

Data monitoring device and system

Technical Field

The application relates to the technical field of intelligent community Internet of things, in particular to a data monitoring device and system.

Background

With the development of information technology, information shows explosive expansion, and a large amount of real-time data to be processed, such as cell environment data, infrastructure equipment operation data and the like, is generated. The real-time data has the characteristics of extremely large data volume, high generation speed, time-varying generation rate and the like. How to realize the fast and effective processing of the real-time data becomes a problem which needs to be solved urgently under the condition of limited resources.

The technical scheme that prior art is on the market at present is, the monitoring object is connected to the sensor, the output of sensor passes through single strand cable conductor connection data acquisition unit, data acquisition unit is through the analytic unit of single strand cable conductor connection data, data acquisition unit's power supply part passes through special power adapter and is connected with electric wire netting 220V, the input of the output connection network transmission unit of data analytic unit, network transmission unit's output passes through the ethernet network and transmits the data transmission after the analysis to high in the clouds server, finally carry out data analysis and site conditions by the server and judge.

The prior art scheme has the following defects: 1. the collection units are dispersed, the wiring is complicated, and the construction difficulty is increased; 2. the power supply is not centralized, and the cost of the power supply is increased for each acquisition unit; 3. the wiring is not standard, a single-strand power line is not shielded, and data is easy to distort; 4. the communication mode is single, and the wired mode and the wireless mode cannot be effectively combined; 5. the data cloud judges that the network delay is large and the field response is not timely; 6. data are transmitted to the cloud end in a transparent mode, and when the number of monitoring objects increases in the later period, the pressure of the server is high.

SUMMERY OF THE UTILITY MODEL

The application mainly aims to provide a data monitoring device and a data monitoring system so as to solve the problems that in the prior art, field response is not timely, the pressure of a server is high and the like.

In order to achieve the above object, in a first aspect, an embodiment of the present application provides a data monitoring apparatus.

The data monitoring device according to the application comprises: the system comprises a data acquisition unit, a data analysis unit, a data processing unit, a network transmission unit and a power supply unit;

the input end of the data acquisition unit is used for receiving various measurement signals, and the output end of the data acquisition unit is connected with the signal processing unit; the data analysis unit is connected with the data processing unit; the output end of the data processing unit is connected with the input end of the network transmission unit;

the input end of the power supply unit is connected with the 220V output end of the municipal power supply, and the output end of the power supply unit is electrically connected with the data acquisition unit, the data analysis unit, the data processing unit and the network transmission unit.

Optionally, the power supply unit includes a power adapter and a power conversion circuit; the input end of the power adapter is connected with the output end of the municipal power supply 220V, and the output end of the power adapter is electrically connected with the input end of the power conversion circuit; the output end of the power supply conversion circuit is electrically connected with the data acquisition unit, the data analysis unit, the data processing unit and the network transmission unit.

Optionally, the data acquisition unit comprises: first signal acquisition circuit and second signal acquisition circuit:

the first signal acquisition circuit includes: the circuit comprises a resistor (R1), a resistor (R2), a resistor (R3), a capacitor (C1) and a follower (U1A); the positive input end of the follower (U1A) is electrically connected with the first end of the resistor (R1), and the second end of the resistor (R1) is electrically connected with the terminal for acquiring signals; the negative input end of the follower (U1A) is electrically connected with the first end of the resistor (R2), and the second end of the resistor (R2) is electrically connected with the output end of the follower (U1A); the output end of the follower (U1A) is electrically connected with the first end of a resistor (R3), and the second end of the resistor (R3) is electrically connected with the data processing unit and the first end of a capacitor (C1); the second end of the capacitor (C1) is grounded;

the second signal acquisition circuit includes: the circuit comprises a resistor (R4), a resistor (R5), a resistor (R6), a capacitor (C2), a capacitor (C3) and a follower (U1B); the positive voltage end of the follower (U1B) is electrically connected with the +3V voltage and the first end of the capacitor (C2), and the grounding end of the follower (U1B) is grounded; the second end of the capacitor (C2) is grounded; a first end of the resistor (R4) is electrically connected with a signal acquisition terminal, and a second end of the resistor is electrically connected with a positive input end of the follower (U1B); a first end of the resistor (R5) is electrically connected with a negative input end of the follower (U1B), and a second end of the resistor (R5) is electrically connected with an output end of the follower (U1B); a first end of the resistor (R6) is electrically connected with an output end of the follower (U1B), and a second end of the resistor (R6) is electrically connected with the data processing unit and a first end of the capacitor (C3); the second end of the capacitor (C3) is grounded.

Optionally, the data acquisition unit comprises four first signal acquisition circuits and four second signal acquisition circuits.

Optionally, the data processing unit comprises: the STM32 control chip (U10), the resistor (R7), the capacitor (C4), the battery (BT1) and the diode (D1);

an ADC port of an STM32 control chip (U10) is electrically connected with an output end of the signal acquisition unit; a signal transceiving port of an STM32 control chip (U10) is electrically connected with the data analysis unit and the network transmission unit;

the VBAT port of the STM32 control chip (U10) is connected with a first end of a resistor (R7), a first end of a capacitor (C4) and a negative electrode of a diode (D1); the second end of the capacitor (C4) is grounded; a second end of the resistor (R7) is electrically connected with the positive electrode of the battery (BT 1); the negative electrode of the battery (BT1) is grounded; the anode of the diode (D1) is connected with +3V voltage.

Optionally, the data parsing unit includes: the circuit comprises a coupler (U3), a coupler (U4), a coupler (U5), a 485 chip (U6), a resistor (R21), a resistor (R22), a resistor (R23), a resistor (R24), a resistor (R25), a resistor (R26), a resistor (R27), a resistor (R28), a resistor (R29), a resistor (R30), a resistor (R31), a voltage stabilizing diode (DZ1), a voltage stabilizing diode (DZ2), a voltage stabilizing diode (DZ3) and a capacitor (C5);

a first input end of the coupler (U3) is electrically connected with a first end of a resistor (R28), and a second end of the resistor (R28) is electrically connected with +5V voltage; a second input end of the coupler (U3) is connected with an RO port of the 485 chip (U6); a first output terminal of the coupler (U3) is grounded; a second output end of the coupler (U3) is electrically connected with a signal receiving port of an STM32 control chip (U10) and a first end of a resistor (R21), and a second end of the resistor (R21) is electrically connected with +3V voltage;

a first input end of the coupler (U4) is electrically connected with a first end of a resistor (R26), and a second end of the resistor (R26) is electrically connected with +3V voltage; a second input end of the coupler (U4) is electrically connected with an RTS signal port of an STM32 control chip (U10); a first output end of the coupler (U4) is electrically connected with a/RE port, a DE port and a first end of a resistor (R22) of the 485 chip (U6), and a second end of the resistor (R22) is grounded; a second output terminal of the coupler (U4) is electrically connected to a +5V voltage;

a first input end of the coupler (U5) is electrically connected with a first end of a resistor (R27), and a second end of the resistor (R27) is electrically connected with +3V voltage; a second input end of the coupler (U5) is electrically connected with a signal transmission port of the STM32 control chip (U10); a first output terminal of the coupler (U5) is grounded; a second output end of the coupler (U5) is electrically connected with the DI port of the 485 chip (U6) and a first end of a resistor (R23), and a second end of the resistor (R23) is grounded;

the VCC port of the 485 chip (U6) is electrically connected with +5V voltage and the first end of a capacitor (C5), and the second end of the capacitor (C5) is grounded; the B port of the 485 chip (U6) is electrically connected with the first end of a resistor (R29), the second end of the resistor (R29) is electrically connected with the first end of the resistor (R24), the first end of the resistor (R31), the cathode of a zener diode (DZ1) and the cathode of the zener diode (DZ3), the second end of the resistor (R24) is grounded, and the second end of the resistor (R31) is electrically connected with the first end of a resistor (R30), the first end of the resistor (R25), the anode of the zener diode (DZ1) and the cathode of the zener diode (DZ 2); the A port of the 485 chip (U6) is electrically connected with the second end of the resistor (R30); the GND port of the 485 chip (U6) is grounded; the anode of the voltage stabilizing diode (DZ2) and the anode of the voltage stabilizing diode (DZ3) are grounded.

Optionally, the power conversion circuit comprises: the LED driving circuit comprises a power chip (U20), a capacitor (C6), a capacitor (C7), a capacitor (C8), a capacitor (C9), a capacitor (C10), a capacitor (C11), a capacitor (C12), a resistor (R9), a resistor (R10), a resistor (R11), a resistor (R12), a resistor (R13), a resistor (R14), a diode (D2), a light-emitting diode (D3), a diode (D4) and an inductor (L);

the anode of the diode (D2) is connected with the output end of the power adapter, and the cathode of the diode is electrically connected with the IN port of the power chip (U20), the first end of the resistor (R10), the anode of the light-emitting diode (D3), the first end of the capacitor (C6) and the first end of the capacitor (C7); the cathode of the light emitting diode (D3) is electrically connected with the first end of the resistor (R9), and the second end of the resistor (R9) is grounded; the second end of the capacitor (C6) and the second end of the capacitor (C7) are both grounded; a second end of the resistor (R10) is electrically connected with an EN port of the power supply chip (U20) and a first end of the resistor (R11); a second terminal of the resistor (R11) is grounded;

the GND port of the power chip (U20) is grounded, and the SS port of the power chip (U20) is electrically connected with the first end of the capacitor (C8); the COMP port of the power supply chip (U20) is electrically connected with the first end of the capacitor (C9); the VSENSE port of the power supply chip (U20) is electrically connected with a first end of the resistor (R13) and a first end of the resistor (R14); the BOOT port of the power chip (U20) is electrically connected with the first end of the capacitor (C10); the PH port of the power chip (U20) is electrically connected with the second end of the capacitor (C10), the negative electrode of the diode (D4) and the first end of the inductor (L);

the second end of the capacitor (C8) is grounded; the second end of the capacitor (C9) is electrically connected with the first end of the resistor (R12), and the second end of the resistor (R12) is grounded; a second terminal of the resistor (R13) is grounded; a second end of the resistor (R14) is electrically connected with a second end of the inductor (L); the anode of the diode (D4) is grounded;

the first end of the capacitor (C11) and the first end of the capacitor (C12) are electrically connected with the second end of the inductor (L), and the second end of the capacitor (C11) and the second end of the capacitor (C12) are grounded.

Optionally, the power conversion circuit further includes: a UA78M33 chip (U30), a capacitor (C13) and a capacitor (C14);

the IN port of the UA78M33 chip (U30) is connected with +5V voltage, and the GND port of the UA78M33 chip (U30) is grounded; the OUT port of the UA78M33 chip (U30) is electrically connected with the first end of the capacitor (C13) and the first end of the capacitor (C14); the second end of the capacitor (C13) and the second end of the capacitor (C14) are grounded.

Optionally, the network transmission unit includes a wired transmission chip (U40) and a wireless transmission chip (U50), the wired transmission chip (U40) is electrically connected to an SPI communication port of the STM32 control chip (U10), and the wireless transmission chip (U50) is electrically connected to a signal transceiving port of the STM32 control chip (U10).

In a second aspect, an embodiment of the present application provides a data monitoring system, which includes the above data monitoring device, and further includes a plurality of sensors electrically connected to the data monitoring device, and a cloud server establishing communication with the data monitoring device.

In the data monitoring device provided by the embodiment of the application, a combination of a data acquisition unit, a data analysis unit, a data processing unit, a network transmission unit and a power supply unit is adopted, the input end of the data acquisition unit is used for receiving various measurement signals, and the output end of the data acquisition unit is connected with the input end of the data processing unit; the data analysis unit is connected with the data processing unit, the output end of the data processing unit is connected with the input end of the network transmission unit, the input end of the power supply unit is connected with the 220V output end of the municipal power supply, and the output end of the power supply unit is electrically connected with the data acquisition unit, the data analysis unit, the data processing unit and the network transmission unit. The computing processing pressure of the background server is greatly reduced, the data analysis and judgment are not influenced by network delay any more, and the situation that the on-site response is not timely is avoided; meanwhile, a centralized power supply mode is adopted, and each unit does not need to be supplied with power independently, so that the power supply cost is reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:

FIG. 1 is a schematic diagram of a data monitoring device according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a power supply unit in a data monitoring device implemented in accordance with the present application;

FIG. 3 is a circuit diagram of a data acquisition unit according to an embodiment of the present application;

FIG. 4 is a circuit diagram of another data acquisition unit according to an embodiment of the present application;

FIG. 5 is a circuit diagram of a data processing unit according to an embodiment of the present application;

FIG. 6 is a circuit diagram of a data parsing unit according to an embodiment of the application;

FIG. 7 is a circuit diagram of a power conversion circuit according to an embodiment of the present application;

FIG. 8 is a circuit diagram of another power conversion circuit according to an embodiment of the present application;

FIG. 9 is a circuit diagram of a network transmission unit according to an embodiment of the present application;

FIG. 10 is a circuit diagram of another network transmission unit according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a data monitoring system according to an embodiment of the present application.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "disposed," "connected," "disposed," and "communicating" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Facility environmental data, equipment operation data and measurement data that need gather in order to satisfy wisdom community engineering management, information such as humiture, water logging, voltage, electric current, pressure, liquid level, hand automatic status. Referring to fig. 1, the present application relates to a data monitoring device, the data monitoring device of the present application includes: the system comprises a data acquisition unit 10, a data analysis unit 20, a data processing unit 30, a network transmission unit 40 and a power supply unit 50; the input end of the data acquisition unit 10 is used for receiving various measurement signals, and the output end of the data acquisition unit 10 is connected with the input end of the data processing unit 30; the data analysis unit 20 is connected with the data processing unit 30; the output end of the data processing unit 30 is connected with the input end of the network transmission unit 40; the input end of the power supply unit 50 is connected with the output end of the municipal power supply 220V, and the output end of the power supply unit 50 is electrically connected with the data acquisition unit 10, the data analysis unit 20, the data processing unit 30 and the network transmission unit 40.

Referring to fig. 2, optionally, the power supply unit 50 includes a power adapter 501 and a power conversion circuit 502; the input end of the power adapter 501 is connected with the output end of municipal power supply 220V, and the output end of the power adapter 501 is electrically connected with the input end of the power conversion circuit 502; the output end of the power conversion circuit 502 is electrically connected to the data acquisition unit 10, the data analysis unit 20, the data processing unit 30 and the network transmission unit 40.

Referring to fig. 3 and 4, optionally, the data acquisition unit includes: first signal acquisition circuit and second signal acquisition circuit:

Optionally, the data acquisition unit includes four first signal acquisition circuits and four second signal acquisition circuits, and realizes independent 8-channel AD for data sampling.

Referring to fig. 5, optionally, the data processing unit comprises: the STM32 control chip (U10), the resistor (R7), the capacitor (C4), the battery (BT1) and the diode (D1);

After the STM32 control chip (U10) acquires the measurement data, it analyzes and calculates the data, and actively determines whether the related device operation data exceeds the alarm threshold range according to the alarm threshold set by the budget, and uploads the result to the background server through the network transmission unit 40, and meanwhile, uploads the measurement data to the background server in real time. All measured data can be processed locally, and the calculation processing pressure of a background server is greatly reduced. The model of the STM32 control chip (U10) in this embodiment may be implemented as an STM32F103VGT6 chip, and the functions of the corresponding pins correspond to those of the skilled in the art according to the rule of chip use.

Referring to fig. 6, optionally, the data parsing unit includes: the circuit comprises a coupler (U3), a coupler (U4), a coupler (U5), a 485 chip (U6), a resistor (R21), a resistor (R22), a resistor (R23), a resistor (R24), a resistor (R25), a resistor (R26), a resistor (R27), a resistor (R28), a resistor (R29), a resistor (R30), a resistor (R31), a voltage stabilizing diode (DZ1), a voltage stabilizing diode (DZ2), a voltage stabilizing diode (DZ3) and a capacitor (C5);

Most of measurement field protocols adopt an RS-485 standard, in some industrial control fields, because field conditions are very complex, high industrial mode voltage exists among nodes, although an RS-485 interface adopts a differential transmission mode and has certain common mode interference resistance, when the common mode voltage exceeds a limit receiving voltage, namely is greater than +12V or less than-7V, a receiver cannot normally work, and even a chip and instrument equipment can be burnt in severe cases, therefore, in the embodiment, a power supply of a power supply unit and a 485 chip (U6) are isolated through DC-DC, signals are isolated during isolation, and the influence of the common mode voltage is thoroughly eliminated.

Referring to fig. 7, optionally, the power conversion circuit includes: the LED driving circuit comprises a power chip (U20), a capacitor (C6), a capacitor (C7), a capacitor (C8), a capacitor (C9), a capacitor (C10), a capacitor (C11), a capacitor (C12), a resistor (R9), a resistor (R10), a resistor (R11), a resistor (R12), a resistor (R13), a resistor (R14), a diode (D2), a light-emitting diode (D3), a diode (D4) and an inductor (L);

The power chip (U20) in the embodiment is an energy efficiency ratio power chip of TPS54331, and is provided with a 3.5V-28V input of Eco-mode and a 3A, 570kHz step-down converter. The power conversion circuit in this embodiment outputs the input +12V voltage to +5V for powering the components in each cell.

Referring to fig. 8, optionally, the power conversion circuit further includes: a UA78M33 chip (U30), a capacitor (C13) and a capacitor (C14);

The specific chip signal of the UA78M33 chip (U30) in this embodiment may be UA78M33CDCY, and this chip outputs the input voltage +5V to +3V, which supplies power to the components in each unit.

Referring to fig. 9 and 10, optionally, the network transmission unit includes a wired transmission chip (U40) and a wireless transmission chip (U50), the wired transmission chip (U40) is electrically connected to the SPI communication port of the STM32 control chip (U10), and the wireless transmission chip (U50) is electrically connected to the signal transceiving port of the STM32 control chip (U10).

In this embodiment, the wired transmission chip (U40) may be a W5500 chip, and the wireless transmission chip (U50) may be a 4G module EC20 chip. In the embodiment, wired communication and wireless communication are combined, so that switching of information transmission modes can be realized, and instantaneity and stability of information transmission are ensured.

The specific design of all embodiments of the present application can be used for the connection between the terminals with reference to the drawings.

Based on the same technical concept, the embodiment of the application further provides a data monitoring system, which comprises the data monitoring device 1, a plurality of sensors 2 electrically connected with the data monitoring device 1, and a cloud server 3 establishing communication with the data monitoring device 1. The input end of the sensor 2 is connected with a monitoring object, and the monitoring object comprises a fire pump, a spray pump, a sewage pump and the like and is used for detecting parameters such as water level, oil level, pressure, temperature and humidity. The data monitoring device 1 in this embodiment can be connected to external signals such as 0-10V voltage signals, 4-20 mA current signals, dry contact signals, digital I2C signals, 485 signals, Ethernet network signals, 4G wireless signals, and the like.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A data monitoring device, comprising: the system comprises a data acquisition unit, a data analysis unit, a data processing unit, a network transmission unit and a power supply unit;

the input end of the data acquisition unit is used for receiving various measurement signals, and the output end of the data acquisition unit is connected with the input end of the data processing unit; the data analysis unit is connected with the data processing unit; the output end of the data processing unit is connected with the input end of the network transmission unit;

2. The data monitoring device of claim 1, wherein the power supply unit comprises a power adapter and a power conversion circuit; the input end of the power adapter is connected with the output end of the municipal power supply 220V, and the output end of the power adapter is electrically connected with the input end of the power conversion circuit; the output end of the power supply conversion circuit is electrically connected with the data acquisition unit, the data analysis unit, the data processing unit and the network transmission unit.

3. The data monitoring device of claim 2, wherein the data acquisition unit comprises: first signal acquisition circuit and second signal acquisition circuit:

the first signal acquisition circuit includes: the circuit comprises a resistor (R1), a resistor (R2), a resistor (R3), a capacitor (C1) and a follower (U1A); the positive input end of the follower (U1A) is electrically connected with the first end of the resistor (R1), and the second end of the resistor (R1) is electrically connected with a terminal for acquiring signals; the negative input end of the follower (U1A) is electrically connected with the first end of the resistor (R2), and the second end of the resistor (R2) is electrically connected with the output end of the follower (U1A); the output end of the follower (U1A) is electrically connected with the first end of the resistor (R3), and the second end of the resistor (R3) is electrically connected with the data processing unit and the first end of the capacitor (C1); the second end of the capacitor (C1) is grounded;

the second signal acquisition circuit includes: the circuit comprises a resistor (R4), a resistor (R5), a resistor (R6), a capacitor (C2), a capacitor (C3) and a follower (U1B); the positive voltage end of the follower (U1B) is electrically connected with +3V voltage and the first end of the capacitor (C2), and the grounding end of the follower (U1B) is grounded; a second terminal of the capacitor (C2) is grounded; a first end of the resistor (R4) is electrically connected with a signal acquisition terminal, and a second end of the resistor (R4) is electrically connected with a positive input end of the follower (U1B); the first end of the resistor (R5) is electrically connected with the negative input end of the follower (U1B), and the second end of the resistor (R5) is electrically connected with the output end of the follower (U1B); a first terminal of the resistor (R6) is electrically connected with an output terminal of the follower (U1B), and a second terminal of the resistor (R6) is electrically connected with the data processing unit and a first terminal of the capacitor (C3); the second end of the capacitor (C3) is grounded.

4. The data monitoring device of claim 3, wherein the data acquisition unit comprises four first signal acquisition circuits and four second signal acquisition circuits.

5. The data monitoring device of claim 4, wherein the data processing unit comprises: the STM32 control chip (U10), the resistor (R7), the capacitor (C4), the battery (BT1) and the diode (D1);

an ADC port of the STM32 control chip (U10) is electrically connected with an output end of the signal acquisition unit; a signal transceiving port of the STM32 control chip (U10) is electrically connected with the data analysis unit and the network transmission unit;

the VBAT port of the STM32 control chip (U10) is connected with the first end of the resistor (R7), the first end of the capacitor (C4) and the cathode of the diode (D1); a second terminal of the capacitor (C4) is grounded; a second end of the resistor (R7) is electrically connected with a positive electrode of the battery (BT 1); the negative electrode of the battery (BT1) is grounded; the anode of the diode (D1) is connected with +3V voltage.

6. The data monitoring device of claim 5, wherein the data parsing unit comprises: the circuit comprises a coupler (U3), a coupler (U4), a coupler (U5), a 485 chip (U6), a resistor (R21), a resistor (R22), a resistor (R23), a resistor (R24), a resistor (R25), a resistor (R26), a resistor (R27), a resistor (R28), a resistor (R29), a resistor (R30), a resistor (R31), a voltage stabilizing diode (DZ1), a voltage stabilizing diode (DZ2), a voltage stabilizing diode (DZ3) and a capacitor (C5);

a first input terminal of the coupler (U3) is electrically connected to the first terminal of the resistor (R28), and a second terminal of the resistor (R28) is electrically connected to a +5V voltage; a second input of the coupler (U3) is connected with an RO port of the 485 chip (U6); a first output of the coupler (U3) is connected to ground; a second output end of the coupler (U3) is electrically connected with a signal receiving port of the STM32 control chip (U10) and a first end of the resistor (R21), and a second end of the resistor (R21) is electrically connected with +3V voltage;

a first input terminal of the coupler (U4) is electrically connected to the first terminal of the resistor (R26), and a second terminal of the resistor (R26) is electrically connected to a +3V voltage; a second input end of the coupler (U4) is electrically connected with an RTS signal port of the STM32 control chip (U10); a first output terminal of the coupler (U4) is electrically connected with the/RE port and the DE port of the 485 chip (U6) and a first end of the resistor (R22), and a second end of the resistor (R22) is grounded; a second output of the coupler (U4) is electrically connected to a +5V voltage;

a first input terminal of the coupler (U5) is electrically connected to the first terminal of the resistor (R27), and a second terminal of the resistor (R27) is electrically connected to a +3V voltage; a second input end of the coupler (U5) is electrically connected with a signal transmission port of the STM32 control chip (U10); a first output of the coupler (U5) is connected to ground; a second output terminal of the coupler (U5) is electrically connected with the DI port of the 485 chip (U6) and a first terminal of the resistor (R23), and a second terminal of the resistor (R23) is grounded;

the VCC port of the 485 chip (U6) is electrically connected with +5V voltage and the first end of the capacitor (C5), and the second end of the capacitor (C5) is grounded; a port B of the 485 chip (U6) is electrically connected with a first end of the resistor (R29), a second end of the resistor (R29) is electrically connected with a first end of the resistor (R24), a first end of the resistor (R31), a cathode of the zener diode (DZ1) and a cathode of the zener diode (DZ3), a second end of the resistor (R24) is grounded, and a second end of the resistor (R31) is electrically connected with a first end of the resistor (R30), a first end of the resistor (R25), an anode of the zener diode (DZ1) and a cathode of the zener diode (DZ 2); the A port of the 485 chip (U6) is electrically connected with the second end of the resistor (R30); the GND port of the 485 chip (U6) is grounded; the anode of the voltage-stabilizing diode (DZ2) and the anode of the voltage-stabilizing diode (DZ3) are grounded.

7. The data monitoring device of claim 6, wherein the power conversion circuit comprises: the LED driving circuit comprises a power chip (U20), a capacitor (C6), a capacitor (C7), a capacitor (C8), a capacitor (C9), a capacitor (C10), a capacitor (C11), a capacitor (C12), a resistor (R9), a resistor (R10), a resistor (R11), a resistor (R12), a resistor (R13), a resistor (R14), a diode (D2), a light-emitting diode (D3), a diode (D4) and an inductor (L);

the anode of the diode (D2) is connected with the output end of the power adapter, and the cathode of the diode is electrically connected with the IN port of the power chip (U20), the first end of the resistor (R10), the anode of the light-emitting diode (D3), the first end of the capacitor (C6) and the first end of the capacitor (C7); the cathode of the light emitting diode (D3) is electrically connected with the first end of the resistor (R9), and the second end of the resistor (R9) is grounded; a second terminal of the capacitor (C6), a second terminal of the capacitor (C7) are both grounded; a second end of the resistor (R10) is electrically connected with an EN port of the power supply chip (U20) and a first end of the resistor (R11); a second terminal of the resistor (R11) is grounded;

the GND port of the power chip (U20) is grounded, and the SS port of the power chip (U20) is electrically connected with the first end of the capacitor (C8); the COMP port of the power supply chip (U20) is electrically connected with the first end of the capacitor (C9); a VSENSE port of the power chip (U20) is electrically connected with a first end of the resistor (R13) and a first end of the resistor (R14); a BOOT port of the power chip (U20) is electrically connected with a first end of the capacitor (C10); the PH port of the power supply chip (U20) is electrically connected with the second end of the capacitor (C10), the cathode of the diode (D4) and the first end of the inductor (L);

a second terminal of the capacitor (C8) is grounded; a second end of the capacitor (C9) is electrically connected with a first end of the resistor (R12), and a second end of the resistor (R12) is grounded; a second terminal of the resistor (R13) is grounded; a second terminal of the resistor (R14) is electrically connected with a second terminal of the inductor (L); the anode of the diode (D4) is grounded;

8. The data monitoring device of claim 7, wherein the power conversion circuit further comprises: a UA78M33 chip (U30), a capacitor (C13) and a capacitor (C14);

the IN port of the UA78M33 chip (U30) is connected with +5V voltage, and the GND port of the UA78M33 chip (U30) is connected with ground; the OUT port of the UA78M33 chip (U30) is electrically connected with the first end of the capacitor (C13) and the first end of the capacitor (C14); a second terminal of the capacitor (C13), a second terminal of the capacitor (C14) is grounded.

9. The data monitoring device of claim 8, wherein the network transmission unit comprises a wired transmission chip (U40) and a wireless transmission chip (U50), the wired transmission chip (U40) is electrically connected with the SPI communication port of the STM32 control chip (U10), and the wireless transmission chip (U50) is electrically connected with the signal transceiving port of the STM32 control chip (U10).

10. A data monitoring system comprising a data monitoring device according to any one of claims 1 to 9, and further comprising a plurality of sensors electrically connected to the data monitoring device, a cloud server in communication with the data monitoring device.