Cloud-edge integrated data acquisition and transmission circuit

Abstract

The utility model relates to the technical field of data acquisition, in particular to a cloud-side integrated data acquisition and transmission circuit, which comprises a sensor module, a signal conditioning module, a main control chip, a communication module and a cloud server, and is characterized in that the sensor module, the signal conditioning module, the main control chip and the communication module are electrically connected in sequence; the communication module is in wireless signal connection with the cloud server, and the signal conditioning module comprises a signal amplification unit, a low-pass filtering unit and a level raising unit which are electrically connected in sequence. According to the utility model, the signal amplification unit can effectively amplify weak signals collected by the sensor, improve the signal strength and ensure the accuracy of subsequent processing, the low-pass filtering unit can remove high-frequency interference signals and ensure the purity of the signals, and the level raising unit further adjusts the signal level. The input requirement of a main control chip is met, and the signal processing quality and adaptability of the whole circuit are improved.

Description

Technical Field

[0001] This utility model relates to the field of data acquisition technology, and more specifically, to an integrated cloud-edge data acquisition and transmission circuit. Background Technology

[0002] In today's rapidly developing digital age, data collection plays a crucial role in many fields such as industrial automation, environmental monitoring, and smart agriculture.

[0003] Traditional data acquisition and transmission circuits often have several shortcomings. For example, the acquired sensor signals are usually weak and susceptible to external interference, and their signal characteristics may not be directly compatible with subsequent processing and transmission stages. Furthermore, when transmitting data to cloud servers, the stability and reliability of the data are difficult to guarantee due to the complex and diverse network environment. At the same time, different application scenarios have varying requirements for data acquisition accuracy, real-time performance, and anti-interference capabilities, and existing circuit solutions are unable to fully meet these diverse needs. Utility Model Content

[0004] The purpose of this invention is to provide an integrated cloud-edge data acquisition and transmission circuit to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The cloud-edge integrated data acquisition and transmission circuit includes a sensor module, a signal conditioning module, a main control chip, a communication module, and a cloud server. The sensor module, the signal conditioning module, the main control chip, and the communication module are electrically connected in sequence. The communication module and the cloud server are wirelessly connected. The signal conditioning module includes a signal amplification unit, a low-pass filter unit, and a level boosting unit that are electrically connected in sequence.

[0007] Preferably, the signal amplification unit includes resistors R1, R2, R3, and R4, and operational amplifier U1;

[0008] The first end of resistor R1 is connected to the sensor module, the second end of resistor R1 is connected to the non-inverting input of operational amplifier U1, the first end of resistor R2 is grounded, the second end of resistor R2 is connected to the inverting input of operational amplifier U1, the first end of resistor R3 is connected to the inverting input of operational amplifier U1, the second end of resistor R3 is connected to the output of operational amplifier U1, and the output of operational amplifier U1 is connected to the first end of resistor R4.

[0009] Preferably, the low-pass filter unit includes resistors R5, R6, and R7, capacitors C1 and C2, and operational amplifier U2.

[0010] The first terminal of resistor R5 is connected to the second terminal of resistor R4, and the second terminal of resistor R5 is connected to the non-inverting input terminal of operational amplifier U2. The first terminal of capacitor C1 is connected to the non-inverting input terminal of operational amplifier U2, and the second terminal of capacitor C1 is grounded. The first terminal of capacitor C2 is connected to the first terminal of resistor R5, and the second terminal of capacitor C2 is connected to the output terminal of operational amplifier U2. The first terminal of resistor R6 is grounded, and the second terminal of resistor R6 is connected to the inverting input terminal of operational amplifier U2. The first terminal of resistor R7 is connected to the inverting input terminal of operational amplifier U2, and the second terminal of resistor R7 is connected to the output terminal of operational amplifier U2.

[0011] Preferably, the level-up unit includes a power supply VCC, resistors R8, R9, R10, R11, R12, and an operational amplifier U3.

[0012] The first terminal of resistor R8 is connected to the output terminal of operational amplifier U2, and the second terminal of resistor R8 is connected to the non-inverting input terminal of operational amplifier U3. The first terminal of resistor R9 is grounded, and the second terminal of resistor R9 is connected to the inverting input terminal of operational amplifier U3. The first terminal of resistor R10 is connected to the inverting input terminal of operational amplifier U3, and the second terminal of resistor R10 is connected to the output terminal of operational amplifier U3. The first terminal of resistor R11 is connected to the power supply VCC, and the second terminal of resistor R11 is connected to the non-inverting input terminal of operational amplifier U3. The first terminal of resistor R12 is connected to the second terminal of resistor R11, and the second terminal of resistor R12 is grounded.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes a signal amplification unit, a low-pass filter unit, and a level-up unit to work in tandem. The signal amplification unit effectively amplifies the weak signals collected by the sensor, increasing signal strength and ensuring the accuracy of subsequent processing. The low-pass filter unit removes high-frequency interference signals, ensuring signal purity. The level-up unit further adjusts the signal level to meet the input requirements of the main control chip, thereby improving the signal processing quality and adaptability of the entire circuit. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the signal conditioning module in the utility model;

[0017] Figure 3 This is a circuit diagram of the signal amplification unit in the utility model;

[0018] Figure 4 This is a circuit diagram of a utility model low-pass filter unit;

[0019] Figure 5 This is a circuit diagram of the level-up unit in the utility model.

[0020] In the picture:

[0021] 1. Sensor module;

[0022] 2. Signal conditioning module; 20. Signal amplification unit; 21. Low-pass filter unit; 22. Level boosting unit;

[0023] 3. Main control chip;

[0024] 4. Communication module;

[0025] 5. Cloud server. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Please see Figures 1-5 The present invention provides the following technical solution:

[0028] The cloud-edge integrated data acquisition and transmission circuit includes a sensor module 1, a signal conditioning module 2, a main control chip 3, a communication module 4, and a cloud server 5. The sensor module 1, signal conditioning module 2, main control chip 3, and communication module 4 are electrically connected in sequence. The communication module 4 and the cloud server 5 are wirelessly connected and can use wireless communication methods such as Wi-Fi, Bluetooth, ZigBee, and 4G / 5G. The main control chip 3 can be a common microcontroller. The signal conditioning module 2 includes a signal amplification unit 20, a low-pass filter unit 21, and a level boosting unit 22 that are electrically connected in sequence.

[0029] In this embodiment, the signal amplification unit 20 includes resistors R1, R2, R3, and R4, and an operational amplifier U1. The amplification factor is determined by resistors R2 and R3.

[0030] The first end of resistor R1 is connected to sensor module 1, the second end of resistor R1 is connected to the non-inverting input of operational amplifier U1, the first end of resistor R2 is grounded, the second end of resistor R2 is connected to the inverting input of operational amplifier U1, the first end of resistor R3 is connected to the inverting input of operational amplifier U1, the second end of resistor R3 is connected to the output of operational amplifier U1, and the output of operational amplifier U1 is connected to the first end of resistor R4.

[0031] Specifically, the low-pass filter unit 21 includes resistors R5, R6, and R7, capacitors C1 and C2, and operational amplifier U2. The low-pass filter unit 21 is a Butterworth second-order low-pass filter, which can effectively filter out interference noise.

[0032] The first terminal of resistor R5 is connected to the second terminal of resistor R4, and the second terminal of resistor R5 is connected to the non-inverting input terminal of operational amplifier U2. The first terminal of capacitor C1 is connected to the non-inverting input terminal of operational amplifier U2, and the second terminal of capacitor C1 is grounded. The first terminal of capacitor C2 is connected to the first terminal of resistor R5, and the second terminal of capacitor C2 is connected to the output terminal of operational amplifier U2. The first terminal of resistor R6 is grounded, and the second terminal of resistor R6 is connected to the inverting input terminal of operational amplifier U2. The first terminal of resistor R7 is connected to the inverting input terminal of operational amplifier U2, and the second terminal of resistor R7 is connected to the output terminal of operational amplifier U2.

[0033] Furthermore, the level-up unit 22 includes a power supply VCC, resistors R8, R9, R10, R11, R12 and an operational amplifier U3, which can boost the signal to the range that the main control chip 3 port can receive. The output terminal of the operational amplifier U3 in the level-up unit 22 needs to be connected to the port with analog-to-digital conversion in the main control chip 3, or an analog-to-digital conversion chip needs to be added.

[0034] The first terminal of resistor R8 is connected to the output terminal of operational amplifier U2, and the second terminal of resistor R8 is connected to the non-inverting input terminal of operational amplifier U3. The first terminal of resistor R9 is grounded, and the second terminal of resistor R9 is connected to the inverting input terminal of operational amplifier U3. The first terminal of resistor R10 is connected to the inverting input terminal of operational amplifier U3, and the second terminal of resistor R10 is connected to the output terminal of operational amplifier U3. The first terminal of resistor R11 is connected to the power supply VCC, and the second terminal of resistor R11 is connected to the non-inverting input terminal of operational amplifier U3. The first terminal of resistor R12 is connected to the second terminal of resistor R11, and the second terminal of resistor R12 is grounded.

[0035] In use, the cloud-edge integrated data acquisition and transmission circuit of this utility model measures the required data by the sensor module 1, which is then amplified by the signal amplification unit 20, low-pass filter unit 21, and level boosting unit 22, and then received by the main control chip 3. The communication module 4 sends the data to the cloud server 5. The main control chip 3 can also perform local processing on the data, including anomaly detection and data compensation. The cloud server 5, with its powerful computing and storage capabilities, performs in-depth analysis on the data, such as mining long-term data trends and correlating data from different production lines. At the same time, the cloud server 5 can also store the data for a long time and achieve global management. Moreover, since the main control chip 3 has already performed preliminary data processing, the amount of data transmitted to the cloud server 5 is greatly reduced, effectively alleviating network bandwidth pressure. Data from multiple main control chips 3 are uniformly converged to the cloud server 5. Even if some main control chips 3 fail, the cloud server 5 can still ensure data integrity and business continuity, improving the overall reliability and flexibility of the system.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cloud-edge integrated data acquisition and transmission circuit, comprising a sensor module (1), a signal conditioning module (2), a main control chip (3), a communication module (4), and a cloud server (5), characterized in that: The sensor module (1), the signal conditioning module (2), the main control chip (3) and the communication module (4) are electrically connected in sequence. The communication module (4) and the cloud server (5) are wirelessly connected. The signal conditioning module (2) includes a signal amplification unit (20), a low-pass filter unit (21) and a level boosting unit (22) that are electrically connected in sequence.

2. The cloud-edge integrated data acquisition and transmission circuit according to claim 1, characterized in that: The signal amplification unit (20) includes resistors R1, R2, R3, R4 and operational amplifier U1; The first end of resistor R1 is connected to the sensor module (1), the second end of resistor R1 is connected to the non-inverting input of operational amplifier U1, the first end of resistor R2 is grounded, the second end of resistor R2 is connected to the inverting input of operational amplifier U1, the first end of resistor R3 is connected to the inverting input of operational amplifier U1, the second end of resistor R3 is connected to the output of operational amplifier U1, and the output of operational amplifier U1 is connected to the first end of resistor R4.

3. The cloud-edge integrated data acquisition and transmission circuit according to claim 2, characterized in that: The low-pass filter unit (21) includes resistors R5, R6, and R7, capacitors C1 and C2, and operational amplifier U2; The first terminal of resistor R5 is connected to the second terminal of resistor R4, and the second terminal of resistor R5 is connected to the non-inverting input terminal of operational amplifier U2. The first terminal of capacitor C1 is connected to the non-inverting input terminal of operational amplifier U2, and the second terminal of capacitor C1 is grounded. The first terminal of capacitor C2 is connected to the first terminal of resistor R5, and the second terminal of capacitor C2 is connected to the output terminal of operational amplifier U2. The first terminal of resistor R6 is grounded, and the second terminal of resistor R6 is connected to the inverting input terminal of operational amplifier U2. The first terminal of resistor R7 is connected to the inverting input terminal of operational amplifier U2, and the second terminal of resistor R7 is connected to the output terminal of operational amplifier U2.

4. The cloud-edge integrated data acquisition and transmission circuit according to claim 3, characterized in that: The level-up unit (22) includes a power supply VCC, resistors R8, R9, R10, R11, R12 and an operational amplifier U3; The first terminal of resistor R8 is connected to the output terminal of operational amplifier U2, and the second terminal of resistor R8 is connected to the non-inverting input terminal of operational amplifier U3. The first terminal of resistor R9 is grounded, and the second terminal of resistor R9 is connected to the inverting input terminal of operational amplifier U3. The first terminal of resistor R10 is connected to the inverting input terminal of operational amplifier U3, and the second terminal of resistor R10 is connected to the output terminal of operational amplifier U3. The first terminal of resistor R11 is connected to the power supply VCC, and the second terminal of resistor R11 is connected to the non-inverting input terminal of operational amplifier U3. The first terminal of resistor R12 is connected to the second terminal of resistor R11, and the second terminal of resistor R12 is grounded.

Images