Internet of Things monitoring host

Abstract

The utility model relates to an internet of things monitoring host which comprises a main control unit and a monitoring unit. The monitoring unit monitors the working state of the main control unit, the monitoring unit is connected with an external local area network or a server on the Internet, the monitoring unit also controls the working of the main control unit, and the main control unit is connected with an external monitored circuit, so that the monitored circuit is subjected to Internet of Things, and remote monitoring and control are realized; wherein the current detection circuit is used for detecting the electricity utilization current of the main control unit so as to detect the running state of the main control unit; the microcontroller is connected with the Ethernet chip, the Ethernet chip is connected with the network isolation transformer, and the network isolation transformer is connected with the Ethernet socket; the microcontroller is further connected with the single-chip microcomputer. Therefore, the circuit is simple, the cost is low, the size is small, the use is convenient, the applicability is wide, and the intelligent degree of the traditional electronic circuit equipment / monitored circuit is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of Internet of Things monitoring circuits, and more specifically, to an Internet of Things monitoring host. Background Art

[0002] Most traditional electronic circuit equipment does not have IoT monitoring and control functions, and has problems such as low intelligence, inconvenient use, and poor user experience;

[0003] Therefore, there is an urgent need for an Internet of Things monitoring host to connect traditional electronic circuit equipment to the Internet of Things and improve the level of intelligence to meet people's usage needs. It is low-cost and does not require replacing existing traditional electronic circuit equipment. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an Internet of Things monitoring host with simple circuit, low cost, small size, easy use and wide applicability in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] Construct an Internet of Things monitoring host, including a main control unit and a monitoring unit; wherein the monitoring unit monitors the working state of the main control unit, the monitoring unit is connected to an external local area network or a server on the Internet, the monitoring unit also controls the work of the main control unit, and the main control unit is connected to an external monitored circuit;

[0007] The monitoring unit comprises: a current detection circuit, a microcontroller, an Ethernet chip, a network isolation transformer and an Ethernet socket; the microcontroller is connected to the Ethernet chip, the Ethernet chip is connected to the network isolation transformer, and the network isolation transformer is connected to the Ethernet socket;

[0008] The microcontroller is also connected to the single-chip microcomputer, the current detection circuit is connected to the microcontroller, and the current detection circuit detects the power consumption current of the main control unit;

[0009] The main control unit comprises: the single chip microcomputer, and the single chip microcomputer is connected to the monitored circuit.

[0010] The Internet of Things monitoring host described in the utility model, wherein the current detection circuit includes an operational amplifier, the -INA terminal of the operational amplifier is connected to a first resistor and a second resistor, the other end of the second resistor is connected to the second end of the current sampling resistor, the other end of the first resistor is connected to the OUTA terminal of the operational amplifier, and the OUTA terminal of the operational amplifier is connected to the PC0 terminal of the microcontroller;

[0011] The +INA terminal of the operational amplifier is connected to a third resistor and a fourth resistor, the other end of the third resistor is grounded, and the other end of the fourth resistor is connected to the first end of the current sampling resistor and also connected to the positive electrode of the 3.3V power supply;

[0012] The second end of the current sampling resistor is respectively connected to the VDDNF1 end, VDDNF2 end, VDDIOP0 end, VDDIOP1 end, VDDANA end, ADVREF end, VDDBU end, VDDUTMII end and VDDOSC end of the single-chip computer; the GNDCORE1 end, GNDCORE2 end, GNDCORE3 end, GNDIOM1 end, GNDIOM2 end, GNDIOM3 end, GNDIOM4 end, GNDIOP1 end, GNDIOP2 end, GNDANA end, GNDUTMI end, GNDBU end and GNDOSC end of the single-chip computer are all grounded;

[0013] The +VS terminal of the operational amplifier is connected to the positive electrode of the 3.3V power supply and the -VS terminal is grounded.

[0014] The Internet of Things monitoring host described in the utility model, wherein the PA9 terminal and PA10 terminal of the single-chip microcomputer are connected one-to-one with the PC12 UART4_TX terminal and the PD2 UART4_RX terminal of the microcontroller, the PA5 terminal and PA6 terminal of the single-chip microcomputer are connected one-to-one with the PC10 UART3_TX terminal and the PC11 UART3_RX terminal of the microcontroller, the NRST terminal of the single-chip microcomputer is respectively connected to the PC6 terminal and the PA8 terminal of the microcontroller and the PA1 terminal is connected to the PA11 terminal of the microcontroller, the WKUP terminal of the single-chip microcomputer is connected to the PA9 terminal of the microcontroller and the SHDN terminal is connected to the PA10 terminal of the microcontroller; the WKUP terminal of the single-chip microcomputer is connected to a fifth resistor, and the other end of the fifth resistor is connected to the second end of the current sampling resistor;

[0015] The VBAT terminal of the microcontroller is connected to the positive electrode of the 3.3V power supply and the VSSA terminal is grounded.

[0016] The Internet of Things monitoring host of the utility model, wherein the PC3 MII_TXCLK end, PB11 MII_TX_EN end, PB12 MII_TXD0 end, PB13 MII_TXD1 end, PC2 MII_TXD2 end and PB8 MII_TXD3 end of the microcontroller are connected one-to-one with the RXC end, RXCTL end, RXD0 end, RXD1 end, RXD2 end and RXD3 end of the Ethernet chip in sequence;

[0017] The PA1 MII_RXCLK terminal, PA7 MII_RX_DV terminal, PC4 MII_RXD0 terminal, PC5 MII_RXD1 terminal, PB0 MII_RXD2 terminal and PB1 MII_RXD3 terminal of the microcontroller are connected one-to-one with the TXC terminal, TXCTL terminal, TXD0 terminal, TXD1 terminal, TXD2 terminal and TXD3 terminal of the Ethernet chip in sequence;

[0018] The PC1 MII_MDC terminal and the PA2 MII_MDIO terminal of the microcontroller are connected one-to-one with the MDC and MDIO terminals of the Ethernet chip;

[0019] The AVDD33_1 terminal of the Ethernet chip is connected to the positive electrode of the 3.3V power supply and the E-PAD terminal is grounded.

[0020] The Internet of Things monitoring host of the utility model, wherein the MDIP0 end, MDIN0 end, MDIP1 end, MDIN1 end, MDIP2 end, MDIN2 end, MDIP3 end and MDIN3 end of the Ethernet chip are connected one-to-one with the 12th pin, 11th pin, 9th pin, 8th pin, 6th pin, 5th pin, 3rd pin and 2nd pin of the network isolation transformer in sequence;

[0021] Pins 13, 14, 16, 17, 19, 20, 22 and 13 of the network isolation transformer are connected one-to-one with pins 1, 2, 3, 6, 4, 5, 7 and 8 of the Ethernet socket in sequence.

[0022] The Internet of Things monitoring host described in the utility model, wherein the model of the single-chip microcomputer is AT91SAM9G25.

[0023] The Internet of Things monitoring host described in the utility model, wherein the model of the microcontroller is GD32F307.

[0024] The Internet of Things monitoring host described in the utility model, wherein the model of the Ethernet chip is RTL8211F.

[0025] The Internet of Things monitoring host described in the utility model, wherein the model of the operational amplifier is SGM8249.

[0026] The beneficial effects of the utility model are as follows: the monitoring unit monitors the working state of the main control unit, the monitoring unit is connected to an external local area network or a server on the Internet, the monitoring unit also controls the work of the main control unit, and the main control unit is connected to an external monitored circuit, thereby realizing the Internet of Things for the monitored circuit, and realizing remote monitoring and control; wherein, the current detection circuit detects the power current of the main control unit to detect the operating state of the main control unit; the microcontroller is connected to the Ethernet chip, the Ethernet chip is connected to the network isolation transformer, and the network isolation transformer is connected to the Ethernet socket; the microcontroller is also connected to the single-chip microcomputer; thereby achieving a simple circuit, low cost, small size, easy use, and wide applicability, which greatly improves the intelligence level of traditional electronic circuit equipment / monitored circuits. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0028] Figure 1 It is a circuit schematic diagram of the current detection circuit of the single-chip microcomputer of the Internet of Things monitoring host in a preferred embodiment of the utility model;

[0029] Figure 2 It is a circuit schematic diagram of the first part of the single chip microcomputer of the Internet of Things monitoring host of the preferred embodiment of the utility model;

[0030] Figure 3 It is a circuit schematic diagram of the second part of the single chip microcomputer of the Internet of Things monitoring host of the preferred embodiment of the utility model;

[0031] Figure 4 It is a circuit schematic diagram of the third part of the single-chip microcomputer of the Internet of Things monitoring host of the preferred embodiment of the utility model;

[0032] Figure 5 It is a circuit schematic diagram of a microcontroller of a single-chip microcomputer of an Internet of Things monitoring host in a preferred embodiment of the utility model;

[0033] Figure 6 It is a circuit schematic diagram of the Ethernet chip of the single-chip microcomputer of the Internet of Things monitoring host in a preferred embodiment of the utility model;

[0034] Figure 7 This is a circuit schematic diagram of a network isolation transformer of a single-chip microcomputer of an Internet of Things monitoring host in a preferred embodiment of the utility model;

[0035] Figure 8It is a circuit schematic diagram of the Ethernet socket of the single-chip microcomputer of the Internet of Things monitoring host in a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be described clearly and completely in combination with the technical solution in the embodiments of the utility model. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0037] The Internet of Things monitoring host of the preferred embodiment of the utility model is as follows Figure 1 See also Figures 2 to 8 ; Includes a main control unit and a monitoring unit; the monitoring unit monitors the working state of the main control unit, the monitoring unit is connected to an external local area network or a server on the Internet, the monitoring unit also controls the work of the main control unit, and the main control unit is connected to an external monitored circuit;

[0038] The monitoring unit includes: a current detection circuit 100, a microcontroller U2, an Ethernet chip U3, a network isolation transformer T1, and an Ethernet socket RJ1; the microcontroller U2 is connected to the Ethernet chip U3, the Ethernet chip U3 is connected to the network isolation transformer T1, and the network isolation transformer T1 is connected to the Ethernet socket RJ1;

[0039] The microcontroller U2 is also connected to the single-chip microcomputer (U1A, U1B, U1C), and the current detection circuit 100 is connected to the microcontroller U2, and the current detection circuit 100 detects the power consumption current of the main control unit;

[0040] The main control unit includes: single chip microcomputer (U1A, U1B, U1C) (such as Figures 1 to 3 As shown), the single chip microcomputer (U1A, U1B, U1C) is connected to the monitored circuit;

[0041] The monitoring unit monitors the working status of the main control unit. The monitoring unit is connected to an external local area network or a server on the Internet. The monitoring unit also controls the operation of the main control unit. The main control unit is connected to an external monitored circuit, thereby realizing the Internet of Things for the monitored circuit and realizing remote monitoring and control; wherein, the current detection circuit 100 detects the power current of the main control unit to detect the operating status of the main control unit; the microcontroller U2 is connected to the Ethernet chip U3, the Ethernet chip U3 is connected to the network isolation transformer T1, and the network isolation transformer T1 is connected to the Ethernet socket RJ1; the microcontroller U2 is also connected to the single-chip computer (U1A, U1B, U1C); thereby achieving a simple circuit, low cost, small size, easy use, and wide applicability, which greatly improves the intelligence level of traditional electronic circuit equipment / monitored circuits.

[0042] like Figure 1 and Figure 5 As shown, the current detection circuit 100 includes an operational amplifier U4, a -INA terminal of the operational amplifier U4 is connected to a first resistor R44 and a second resistor R42, the other end of the second resistor R42 is connected to the second end of the current sampling resistor R41, the other end of the first resistor R44 is connected to the OUTA terminal of the operational amplifier U4, and the OUTA terminal of the operational amplifier U4 is connected to the PC0 terminal of the microcontroller U2;

[0043] The +INA terminal of the operational amplifier U4 is connected to a third resistor R45 and a fourth resistor R43, the other end of the third resistor R45 is grounded, and the other end of the fourth resistor R43 is connected to the first end of the current sampling resistor R41 and also connected to the positive electrode of the 3.3V power supply;

[0044] The second end of the current sampling resistor R41 is respectively connected to the VDDNF1 end, VDDNF2 end, VDDIOP0 end, VDDIOP1 end, VDDANA end, ADVREF end, VDDBU end, VDDUTMII end and VDDOSC end of the single-chip computer (U1A, U1B, U1C); the GNDCORE1 end, GNDCORE2 end, GNDCORE3 end, GNDIOM1 end, GNDIOM2 end, GNDIOM3 end, GNDIOM4 end, GNDIOP1 end, GNDIOP2 end, GNDANA end, GNDUTMI end, GNDBU end and GNDOSC end of the single-chip computer (U1A, U1B, U1C) are all grounded;

[0045] The +VS terminal of the operational amplifier U4 is connected to the positive electrode of the 3.3V power supply and the -VS terminal is grounded;

[0046] The current sampling resistor R41 is used to detect the power consumption current of the microcontroller (U1A, U1B, U1C) to determine whether the microcontroller (U1A, U1B, U1C) is powered on. The operational amplifier U4 detects the voltage across the current sampling circuit to calculate the current flowing through the current sampling resistor R41 according to Ohm's law.

[0047] like Figures 2 to 5 As shown, the PA9 and PA10 terminals of the microcontroller (U1A, U1B, U1C) are connected one-to-one with the PC12 UART4_TX terminal and the PD2 UART4_RX terminal of the microcontroller U2, and the PA5 and PA6 terminals of the microcontroller (U1A, U1B, U1C) are connected one-to-one with the PC10 UART3_TX terminal and the PC11 UART4_RX terminal of the microcontroller U2. The UART3_RX end is connected one-to-one, the NRST end of the single-chip microcomputer (U1A, U1B, U1C) is respectively connected to the PC6 end and the PA8 end of the microcontroller U2, and the PA1 end is connected to the PA11 end of the microcontroller U2, the WKUP end of the single-chip microcomputer (U1A, U1B, U1C) is connected to the PA9 end of the microcontroller U2, and the SHDN end is connected to the PA10 end of the microcontroller U2; the WKUP end of the single-chip microcomputer (U1A, U1B, U1C) is connected to the fifth resistor R33, and the other end of the fifth resistor R33 is connected to the second end of the current sampling resistor R41 to realize pull-up power to meet the use requirements;

[0048] The VBAT terminal of the microcontroller U2 is connected to the positive pole of the 3.3V power supply and the VSSA terminal is grounded to achieve communication, namely: monitoring and control.

[0049] like Figure 5 and Figure 6 As shown, the PC3 MII_TXCLK terminal, PB11 MII_TX_EN terminal, PB12 MII_TXD0 terminal, PB13 MII_TXD1 terminal, PC2 MII_TXD2 terminal and PB8 MII_TXD3 terminal of the microcontroller U2 are connected one-to-one with the RXC terminal, RXCTL terminal, RXD0 terminal, RXD1 terminal, RXD2 terminal and RXD3 terminal of the Ethernet chip U3 in sequence;

[0050] The PA1 MII_RXCLK terminal, PA7 MII_RX_DV terminal, PC4 MII_RXD0 terminal, PC5 MII_RXD1 terminal, PB0 MII_RXD2 terminal and PB1 MII_RXD3 terminal of the microcontroller U2 are connected one-to-one with the TXC terminal, TXCTL terminal, TXD0 terminal, TXD1 terminal, TXD2 terminal and TXD3 terminal of the Ethernet chip U3 in sequence;

[0051] The PC1 MII_MDC terminal and the PA2 MII_MDIO terminal of the microcontroller U2 are connected one-to-one with the MDC and MDIO terminals of the Ethernet chip U3;

[0052] The AVDD33_1 terminal of the Ethernet chip U3 is connected to the positive pole of the 3.3V power supply and the E-PAD terminal is grounded to achieve communication connection.

[0053] like Figure 6 and Figure 7 As shown, the MDIP0 end, MDIN0 end, MDIP1 end, MDIN1 end, MDIP2 end, MDIN2 end, MDIP3 end and MDIN3 end of the Ethernet chip U3 are connected one-to-one with the 12th pin, the 11th pin, the 9th pin, the 8th pin, the 6th pin, the 5th pin, the 3rd pin and the 2nd pin of the network isolation transformer T1 in sequence;

[0054] The 13th pin, 14th pin, 16th pin, 17th pin, 19th pin, 20th pin, 22th pin and 13th pin of the network isolation transformer T1 are connected one-to-one with the 1st pin, 2nd pin, 3rd pin, 6th pin, 4th pin, 5th pin, 7th pin and 8th pin of the Ethernet socket RJ1 in sequence to realize communication connection; wherein, the Ethernet socket RJ1 is connected to a server on a local area network or the Internet through a network cable to realize local / remote monitoring / control of the monitored circuit; the use of the network isolation transformer T1 improves the anti-interference ability and lightning protection.

[0055] like Figures 2 to 4 As shown, the model of the single-chip microcomputer (U1A, U1B, U1C) is AT91SAM9G25; it has low cost, small size, multiple I / O ports, and can realize more functions.

[0056] like Figure 5 As shown, the microcontroller U2 is model GD32F307, which has low cost and small size.

[0057] like Figure 6 As shown, the model of Ethernet chip U3 is RTL8211F; it has low cost and small size.

[0058] like Figure 1 As shown, the operational amplifier U4 is model SGM8249, which has low cost, small size and high precision.

[0059] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. An Internet of Things monitoring host, comprising a main control unit and a monitoring unit; characterized in that: The monitoring unit monitors the working state of the main control unit, the monitoring unit is connected to an external local area network or a server on the Internet, the monitoring unit also controls the work of the main control unit, and the main control unit is connected to an external monitored circuit; The monitoring unit comprises: a current detection circuit, a microcontroller, an Ethernet chip, a network isolation transformer and an Ethernet socket; the microcontroller is connected to the Ethernet chip, the Ethernet chip is connected to the network isolation transformer, and the network isolation transformer is connected to the Ethernet socket; The microcontroller is also connected to the single-chip microcomputer, the current detection circuit is connected to the microcontroller, and the current detection circuit detects the power consumption current of the main control unit; The main control unit comprises: the single chip microcomputer, and the single chip microcomputer is connected to the monitored circuit.

2. The Internet of Things monitoring host according to claim 1, characterized in that: The current detection circuit includes an operational amplifier, a -INA terminal of the operational amplifier is connected to a first resistor and a second resistor, the other end of the second resistor is connected to the second end of the current sampling resistor, the other end of the first resistor is connected to the OUTA terminal of the operational amplifier, and the OUTA terminal of the operational amplifier is connected to the PC0 terminal of the microcontroller; The +INA terminal of the operational amplifier is connected to a third resistor and a fourth resistor, the other end of the third resistor is grounded, and the other end of the fourth resistor is connected to the first end of the current sampling resistor and also connected to the positive electrode of the 3.3V power supply; The second end of the current sampling resistor is respectively connected to the VDDNF1 end, VDDNF2 end, VDDIOP0 end, VDDIOP1 end, VDDANA end, ADVREF end, VDDBU end, VDDUTMII end and VDDOSC end of the single-chip computer; the GNDCORE1 end, GNDCORE2 end, GNDCORE3 end, GNDIOM1 end, GNDIOM2 end, GNDIOM3 end, GNDIOM4 end, GNDIOP1 end, GNDIOP2 end, GNDANA end, GNDUTMI end, GNDBU end and GNDOSC end of the single-chip computer are all grounded; The +VS terminal of the operational amplifier is connected to the positive electrode of the 3.3V power supply and the -VS terminal is grounded.

3. The Internet of Things monitoring host according to claim 2, characterized in that: The PA9 and PA10 terminals of the single-chip microcomputer are connected one-to-one with the PC12 UART4_TX terminal and the PD2 UART4_RX terminal of the microcontroller, the PA5 and PA6 terminals of the single-chip microcomputer are connected one-to-one with the PC10 UART3_TX terminal and the PC11 UART3_RX terminal of the microcontroller, the NRST terminal of the single-chip microcomputer is respectively connected with the PC6 terminal and the PA8 terminal of the microcontroller, and the PA1 terminal is connected with the PA11 terminal of the microcontroller, the WKUP terminal of the single-chip microcomputer is connected with the PA9 terminal of the microcontroller, and the SHDN terminal is connected with the PA10 terminal of the microcontroller; the WKUP terminal of the single-chip microcomputer is connected with a fifth resistor, and the other end of the fifth resistor is connected with the second end of the current sampling resistor; The VBAT terminal of the microcontroller is connected to the positive electrode of the 3.3V power supply and the VSSA terminal is grounded.

4. The Internet of Things monitoring host according to claim 3, characterized in that: The PC3 MII_TXCLK terminal, the PB11 MII_TX_EN terminal, the PB12 MII_TXD0 terminal, the PB13 MII_TXD1 terminal, the PC2 MII_TXD2 terminal, and the PB8 MII_TXD3 terminal of the microcontroller are connected one-to-one with the RXC terminal, the RXCTL terminal, the RXD0 terminal, the RXD1 terminal, the RXD2 terminal, and the RXD3 terminal of the Ethernet chip in sequence; The PA1 MII_RXCLK terminal, PA7 MII_RX_DV terminal, PC4 MII_RXD0 terminal, PC5 MII_RXD1 terminal, PB0 MII_RXD2 terminal and PB1 MII_RXD3 terminal of the microcontroller are connected one-to-one with the TXC terminal, TXCTL terminal, TXD0 terminal, TXD1 terminal, TXD2 terminal and TXD3 terminal of the Ethernet chip in sequence; The PC1 MII_MDC terminal and the PA2 MII_MDIO terminal of the microcontroller are connected one-to-one with the MDC and MDIO terminals of the Ethernet chip; The AVDD33_1 terminal of the Ethernet chip is connected to the positive electrode of the 3.3V power supply and the E-PAD terminal is grounded.

5. The Internet of Things monitoring host according to claim 4, characterized in that: The MDIP0 end, MDIN0 end, MDIP1 end, MDIN1 end, MDIP2 end, MDIN2 end, MDIP3 end and MDIN3 end of the Ethernet chip are connected one-to-one with the 12th pin, 11th pin, 9th pin, 8th pin, 6th pin, 5th pin, 3rd pin and 2nd pin of the network isolation transformer in sequence; Pins 13, 14, 16, 17, 19, 20, 22 and 13 of the network isolation transformer are connected one-to-one with pins 1, 2, 3, 6, 4, 5, 7 and 8 of the Ethernet socket in sequence.

6. The Internet of Things monitoring host according to claim 1, characterized in that: The model of the single chip microcomputer is AT91SAM9G25.

7. The Internet of Things monitoring host according to claim 1, characterized in that: The model of the microcontroller is GD32F307.

8. The Internet of Things monitoring host according to claim 1, characterized in that: The model of the Ethernet chip is RTL8211F.

9. The Internet of Things monitoring host according to claim 2, characterized in that: The operational amplifier is model SGM8249.

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