Internet of Things edge computing intelligent gateway convenient to protect

Abstract

The utility model provides an internet of things edge computing intelligent gateway convenient to protect, which is applied to the technical field of intelligent gateway protection and comprises a voltage stabilization amplification circuit, a digital-to-analog conversion circuit and a digital signal processing circuit. The voltage-stabilizing amplifying circuit comprises a first operational amplifier U1 and a voltage-stabilizing chip U5, and the voltage-stabilizing amplifying circuit is used for amplifying an input signal and stabilizing the voltage of a power supply of each element. The voltage-stabilizing amplifying circuit can amplify the input signal and realizes the voltage-stabilizing effect on each element through the voltage-stabilizing chip arranged on the voltage-stabilizing amplifying circuit; by arranging the digital-to-analog conversion circuit, analog signals can be converted into digital signals to facilitate subsequent encryption processing, and the reference voltage chip arranged on the digital-to-analog conversion circuit can provide accurate reference voltage for each component to ensure that other components can work accurately; and the digital signal processing circuit is arranged to encrypt the converted digital signal.

Description

TECHNICAL FIELD

[0001] The utility model relates to intelligent gateway protection technical field especially, relate to a thing networking edge calculation intelligent gateway convenient to protection. BACKGROUND

[0002] The data processing mode of the existing meteorological detection equipment (such as edge calculation intelligent gateway) is generally to adopt centralized processing mode, and all data are transmitted to the center end server for centralized processing and analysis, and this mode is difficult to meet the real-time requirement of meteorological detection data, because data transmission and processing need time, and cause great pressure to the bandwidth and storage resources of the center end server and network.In addition, the centralized processing mode also increases the risk of data leakage, and all data are concentrated in the center end server, and once the server is attacked, all data can be leaked.

[0003] The existing edge calculation intelligent gateway for meteorological detection generally adopts encryption technology for data security protection, for example, symmetric encryption, asymmetric encryption and the like.But these encryption algorithms can have security vulnerabilities, for example, the risk of being cracked, and in view of this, we propose a thing networking edge calculation intelligent gateway convenient to protection. CONTENT OF UTILITY MODEL

[0004] The main purpose of the utility model is to provide a thing networking edge calculation intelligent gateway convenient to protection, to solve the problem of poor signal-to-noise ratio, low detection accuracy and inability to meet the demand of high-precision detection in the related art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a thing networking edge calculation intelligent gateway convenient to protection is provided, which comprises: a voltage stabilizing amplification circuit, a digital-to-analog conversion circuit and a digital signal processing circuit.

[0006] The voltage stabilizing amplification circuit comprises a first operational amplifier U1 and a voltage stabilizing chip U5, and is used for amplifying input signals and stabilizing the power supply of each element.

[0007] The digital-to-analog conversion circuit comprises a digital-to-analog converter U2 and a second operational amplifier U7, and is used for converting analog signals into digital signals.

[0008] The digital signal processing circuit comprises a digital signal processing chip U3 and a single-chip microcomputer U4, and is used for encrypting the converted digital signals.

[0009] Further, the voltage stabilizing amplification circuit further comprises a resistor R1 and a resistor R6, the resistor R1 is connected in series between the first operational amplifier U1 and the voltage stabilizing chip U5, and the resistor R6 is connected in series between the VOUT pin and the ADJ pin of the voltage stabilizing chip U5.

[0010] Further, the digital-to-analog conversion circuit further comprises resistors R2, R3, R5, a capacitor C1, the resistor R3 is connected in series between the digital-to-analog converter U2 and the second operational amplifier U7, the resistor R2 and the capacitor C1 are connected in parallel and then connected in series between the digital-to-analog converter U2 and the first operational amplifier U1, one end of the resistor R5 is connected to the IN pin of the second operational amplifier U7, and the other end is grounded.

[0011] Further, the digital-to-analog conversion circuit further comprises a reference voltage chip U6, an inductor LDO, a resistor R4 and a capacitor C2, the resistor R4 and the capacitor C2 are connected in parallel and then connected between the reference voltage chip U6 and the digital-to-analog converter U2, and the inductor LDO is connected to the digital-to-analog converter U2.

[0012] Further, the digital signal processing circuit further comprises capacitors C3, C4, resistors R6, R7 and R8, the capacitors C3 and C4 are connected in parallel and then connected to the pins 10 and 11 of the single-chip microcomputer U4 respectively, the pin 12 of the single-chip microcomputer U4 is grounded, one end of each of the resistors R6, R7 and R8 is connected to the pins 24, 22 and 20 of the single-chip microcomputer U4 respectively, and the other end of each of the resistors R6, R7 and R8 is grounded.

[0013] Further, the MO, MCLK, MSS and MI of the digital-to-analog converter U2 are connected to the pins 7, 5, 3 and 2 of the single-chip microcomputer U4 respectively.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model discloses a stable voltage amplification circuit can be amplified to the signal of input and through its setting voltage stabilizing chip realizes the voltage stabilizing effect of each component, through setting digital-to-analog conversion circuit can convert analog signal into digital signal convenient subsequent encryption processing, and through its setting reference voltage chip can provide accurate reference voltage for each component, ensure that other components can work accurately, through setting digital signal processing circuit can be isolated between analog signal processing and digital signal processing part, ensure the stability and reliability of circuit, it can transmit digital signal between different voltage domains, guarantee that these voltage domains do not have direct electrical connection simultaneously, thereby prevent the propagation of noise, interference and voltage surge between different circuit parts, can ensure the accurate and fast transmission of data while isolating, ensure the encryption processing of data.

[0016] It should be understood that the content described in the utility model content part is not intended to limit the key or important features of the embodiments of the disclosure, nor is it intended to limit the scope of the disclosure. Other features of the disclosure will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and other features, advantages, and aspects of embodiments of the present disclosure will become more apparent by describing in detail the following embodiments with reference to the attached drawings. The drawings provided are for illustrative purposes only and are not limiting on the present disclosure. In the drawings:

[0018] Figure 1 The overall circuit diagram of the utility model. DETAILED DESCRIPTION

[0019] In order that the objects, technical solutions and advantages of the embodiments of the present disclosure are more apparent, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are some but not all of the embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present disclosure.

[0020] In order to make the above-mentioned objects, features and advantages of the utility model more apparent, clear and understandable, the utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0021] Please refer to Figure 1 The utility model provides a kind of IOT edge computing intelligent gateway of being convenient for protection, comprising: voltage stabilizing amplification circuit, digital-analog conversion circuit and digital signal processing circuit;

[0022] The voltage stabilizing amplification circuit includes a first operational amplifier U1 and a voltage stabilizing chip U5, and is used for amplifying input signals and stabilizing power supply of each element.

[0023] The digital-analog conversion circuit includes a digital-analog converter U2 and a second operational amplifier U7, and is used for converting analog signals into digital signals.

[0024] The digital signal processing circuit includes a digital signal processing chip U3 and a single-chip microcomputer U4, and is used for encrypting the converted digital signals.

[0025] Further, the voltage stabilizing amplification circuit further includes a resistor R1 and a resistor R6, the resistor R1 is connected in series between the first operational amplifier U1 and the voltage stabilizing chip U5, the resistor R6 is connected in series between the VOUT pin and the ADJ pin of the voltage stabilizing chip U5, the input signals can be amplified by the first operational amplifier U1, and then transmitted to the second operational amplifier U7 for secondary amplification, the resistor R1 and the resistor R6 can play the role of voltage division, and cooperate with the voltage stabilizing chip U5 to achieve the voltage stabilizing effect of each component.

[0026] Further, the digital-to-analog conversion circuit further comprises resistors R2, R3, R5, and a capacitor C1, the resistor R3 is connected in series between the digital-to-analog converter U2 and the second operational amplifier U7, the resistor R2 and the capacitor C1 are connected in parallel and then connected in series between the digital-to-analog converter U2 and the first operational amplifier U1, one end of the resistor R5 is connected to the IN pin of the second operational amplifier U7, and the other end is grounded, the second operational amplifier U7 performs secondary amplification on the signal, ensures that the subsequent signal can be accurately encrypted, and the amplified signal is converted into a digital signal by the digital-to-analog converter U2, so as to facilitate subsequent encryption processing, and in this process, the resistors R2, R3 and R5 can play a current limiting effect, and the capacitor C1 can play a filtering effect.

[0027] Further, the digital-to-analog conversion circuit further comprises a reference voltage chip U6, an inductor LDO, a resistor R4 and a capacitor C2, the resistor R4 and the capacitor C2 are connected in parallel and then connected between the reference voltage chip U6 and the digital-to-analog converter U2, and the inductor LDO is connected with the digital-to-analog converter U2, the reference voltage chip U6 can provide accurate reference voltage for each component, so as to ensure that other components can work accurately, and the inductor LDO is used for power filtering and voltage stabilization, so as to ensure the stability of the power supply.

[0028] Further, the digital signal processing circuit further comprises capacitors C3 and C4, resistors R6, R7 and R8, the capacitors C3 and C4 are connected in parallel and then connected to the pins 10 and 11 of the single-chip microcomputer U4 respectively, the pin 12 of the single-chip microcomputer U4 is grounded, one end of each of the resistors R6, R7 and R8 is connected to the pins 24, 22 and 20 of the single-chip microcomputer U4 respectively, and the other end of each of the resistors R6, R7 and R8 is grounded, the digital signal processing chip U3 receives the converted signal, and the digital signal processing chip U3 can be isolated between the analog signal processing part and the digital signal processing part, so as to ensure the stability and reliability of the circuit, the digital signal processing chip U3 can transmit digital signals between different voltage domains while ensuring that there is no direct electrical connection between these voltage domains, so as to prevent noise, interference and voltage surges from being transmitted between different circuit parts, ensure accurate and rapid transmission of data while ensuring isolation, and ensure encryption processing of data.

[0029] Further, the MO, MCLK, MSS and MI of the digital-to-analog converter U2 are connected to the pins 7, 5, 3 and 2 of the single-chip microcomputer U4 respectively.

[0030] The above specific embodiments of the utility model do not constitute a limitation on the protection scope of the present disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. An IoT edge computing intelligent gateway for easy protection, characterized in that, Include: The voltage stabilizing amplifier circuit, digital-to-analog conversion circuit and digital signal processing circuit; The voltage stabilizing amplifier circuit includes a first operational amplifier U1 and a voltage stabilizing chip U5, and is used for amplifying input signals and stabilizing power supply of each element; The digital-to-analog conversion circuit includes a digital-to-analog converter U2 and a second operational amplifier U7, and is used for converting analog signals into digital signals; The digital signal processing circuit includes a digital signal processing chip U3 and a single-chip microcomputer U4, and is used for encrypting the converted digital signals.

2. The secured internet of things edge computing intelligent gateway of claim 1, wherein, The voltage stabilizing amplifier circuit further includes a resistor R1 and a resistor R6, the resistor R1 is connected in series between the first operational amplifier U1 and the voltage stabilizing chip U5, and the resistor R6 is connected in series between a VOUT pin and an ADJ pin of the voltage stabilizing chip U5.

3. The secured internet of things edge computing intelligent gateway of claim 2, wherein, The digital-to-analog conversion circuit further includes a resistor R2, a resistor R3, a resistor R5 and a capacitor C1, the resistor R3 is connected in series between the digital-to-analog converter U2 and the second operational amplifier U7, the resistor R2 and the capacitor C1 are connected in parallel and then connected in series between the digital-to-analog converter U2 and the first operational amplifier U1, one end of the resistor R5 is connected to an IN pin of the second operational amplifier U7, and the other end is grounded.

4. The secured internet of things edge computing intelligent gateway of claim 1, wherein, The digital-to-analog conversion circuit further includes a reference voltage chip U6, an inductor LDO, a resistor R4 and a capacitor C2, the resistor R4 and the capacitor C2 are connected in parallel and then connected between the reference voltage chip U6 and the digital-to-analog converter U2, and the inductor LDO is connected to the digital-to-analog converter U2.

5. The secured internet of things edge computing intelligent gateway of claim 4, wherein, The digital signal processing circuit further includes a capacitor C3, a capacitor C4, a resistor R6, a resistor R7 and a resistor R8, the capacitor C3 and the capacitor C4 are connected in parallel and then connected to a pin 10 and a pin 11 of the single-chip microcomputer U4 respectively, a pin 12 of the single-chip microcomputer U4 is grounded, one end of the resistor R6, the resistor R7 and the resistor R8 is connected to a pin 24, a pin 22 and a pin 20 of the single-chip microcomputer U4 respectively, and the other end of the resistor R6, the resistor R7 and the resistor R8 is grounded.

6. The secured internet of things edge computing intelligent gateway of claim 1, wherein, The MO, MCLK, MSS and M1 of the digital-to-analog converter U2 are connected to a pin 7, a pin 5, a pin 3 and a pin 2 of the single-chip microcomputer U4 respectively.

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