Docking station for intelligent terminal module

Abstract

The utility model discloses a docking station for an intelligent terminal module. The docking station comprises a control unit, a module management unit, an Ethernet unit, a voltage sampling unit and a power supply unit, the module management unit is electrically connected with the control unit, the Ethernet unit is electrically connected with the control unit, and the voltage sampling unit is electrically connected with the control unit; the power supply unit is electrically connected with the control unit, and the output end of the power supply unit is electrically connected with the input end of the module management unit, the input end of the control unit and the input end of the Ethernet unit. According to the utility model, the technical problems that the updating iteration mode of the existing intelligent terminal is complex, the function of the intelligent terminal module is single, and the multi-branch and multi-function requirements of the low-voltage distribution area cannot be met are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to intelligent terminal technical field especially relates to a kind of for intelligent terminal module expansion dock. BACKGROUND

[0002] Low-voltage distribution section area branch topology identification scene actual branch number reaches 8-12, at present, the existing low-voltage distribution section intelligent terminal body most supports 5 branches, cannot satisfy actual demand;And the existing intelligent terminal module function is single, cost is high, and only through USB interface or serial port can be connected between intelligent terminal, not simultaneously with multiple interfaces, data acquisition, clock positioning and 10 / 100M Ethernet function, do not support module expansion, and its communication protocol exists no check, poor security and other problems;Although intelligent terminal equipment is widely used in low-voltage distribution section, but smart relies on replacement new terminal and its corresponding component to complete the iteration and update of function.The patent literature with application number CN201220136373.8 discloses a kind of user replaceable wireless communication device's intelligent terminal, including intelligent terminal body and the wireless communication device of SIM card installation, the side of intelligent terminal body is provided with the slot of adaptation insertion wireless communication device, wireless communication device is detachably installed in slot, and it is connected with intelligent terminal body by interface, and the outer surface of wireless communication device and the outer surface of intelligent terminal body are adapted.Therefore, it is urgent to propose a kind of for intelligent terminal module expansion dock, solve the complex of existing intelligent terminal update iteration mode, and the function of intelligent terminal module is single, cannot satisfy the technical problem of low-voltage distribution section area multiple branches and multi-functional demand. UTILITY MODEL CONTENT

[0003] The main purpose of the utility model is to propose a kind of for intelligent terminal module expansion dock and control method thereof, to solve the complex of existing intelligent terminal update iteration mode, and the function of intelligent terminal module is single, cannot satisfy the technical problem of low-voltage distribution section area multiple branches and multi-functional demand.

[0004] To achieve the above object, the utility model provides a kind of for intelligent terminal module expansion dock, wherein the for intelligent terminal module expansion dock includes: control unit, module management unit, Ethernet unit, voltage sampling unit and power unit;The module management unit is electrically connected with control unit, the Ethernet unit is electrically connected with control unit, and the voltage sampling unit is electrically connected with control unit;The power unit is electrically connected with control unit, and the output end of the power unit is electrically connected with the input end of module management unit, control unit and Ethernet unit respectively.

[0005] In one preferred embodiment, the voltage sampling unit comprises a sampling chip D2 and a voltage dividing and sampling circuit; the sampling chip D2 is connected with the voltage dividing and sampling circuit and the control unit respectively, the voltage dividing and sampling circuit is connected with the strong current interface; the voltage dividing and sampling circuit comprises an A-phase voltage dividing and sampling circuit, a B-phase voltage dividing and sampling circuit and a C-phase voltage dividing and sampling circuit.

[0006] In one preferred embodiment, the A-phase voltage dividing and sampling circuit comprises a voltage dividing resistor R56, a magnetic bead L4, a sampling resistor R62, a capacitor C29, a sampling resistor R78 and a capacitor C30; one end of the voltage dividing resistor R56 is connected with the strong current interface, the other end of the voltage dividing resistor R56 is connected with the magnetic bead L4, the other end of the magnetic bead L4 is connected with the sampling resistor R62, the capacitor C29 and the V1P positive analog input pin of the sampling chip D2 respectively; one end of the sampling resistor R78 and the capacitor C30 is connected with the V1N negative analog input pin of the sampling chip D2, the other end of the sampling resistor R62, the capacitor C29, the sampling resistor R78 and the capacitor C30 is grounded.

[0007] In one preferred embodiment, the B-phase voltage dividing and sampling circuit comprises a voltage dividing resistor R63, a magnetic bead L34, a sampling resistor R69, a capacitor C31, a sampling resistor R79 and a capacitor C32; one end of the voltage dividing resistor R63 is connected with the strong current interface, the other end of the voltage dividing resistor R63 is connected with the magnetic bead L34, the other end of the magnetic bead L34 is connected with the sampling resistor R69, the capacitor C31 and the V2P positive analog input pin of the sampling chip D2 respectively; one end of the sampling resistor R79 and the capacitor C32 is connected with the V2N negative analog input pin of the sampling chip D2, the other end of the sampling resistor R69, the capacitor C31, the sampling resistor R79 and the capacitor C32 is grounded.

[0008] In one preferred embodiment, the C-phase voltage dividing and sampling circuit comprises a voltage dividing resistor R70, a magnetic bead L35, a sampling resistor R76, a capacitor C36, a sampling resistor R82 and a capacitor C41; one end of the voltage dividing resistor R70 is connected with the strong current interface, the other end of the voltage dividing resistor R70 is connected with the magnetic bead L35, the other end of the magnetic bead L35 is connected with the sampling resistor R76, the capacitor C36 and the V3P positive analog input pin of the sampling chip D2 respectively; one end of the sampling resistor R82 and the capacitor C41 is connected with the V3N negative analog input pin of the sampling chip D2, the other end of the sampling resistor R76, the capacitor C36, the sampling resistor R82 and the capacitor C41 is grounded.

[0009] In one preferred embodiment, the Ethernet unit comprises an Ethernet transceiver circuit and an Ethernet protection circuit; the Ethernet transceiver circuit is connected with the control unit and the Ethernet protection circuit respectively; the Ethernet transceiver circuit comprises an Ethernet transceiver chip D3 and a peripheral circuit, and the Ethernet transceiver chip D3 is connected with the peripheral circuit and the Ethernet protection circuit respectively.

[0010] In one preferred embodiment, the Ethernet protection circuit comprises a TVS diode array D4, a clamping diode V12, a clamping diode V13, a clamping diode V14 and a clamping diode V15; the pin 1 of the TVS diode array D4 is connected with the pin 3 of the clamping diode V12 and the pin 3 of the Ethernet transceiver chip D3 respectively; the pin 3 of the TVS diode array D4 is connected with the pin 3 of the clamping diode V13 and the pin 3 of the Ethernet transceiver chip D3 respectively; the pin 4 of the TVS diode array D4 is connected with the pin 3 of the clamping diode V15 and the pin 3 of the Ethernet transceiver chip D3 respectively; the pin 6 of the TVS diode array D4 is connected with the pin 3 of the clamping diode V14 and the pin 3 of the Ethernet transceiver chip D3 respectively; the pin 2 of the TVS diode array D4, the pin 1 of the clamping diode V12, the pin 1 of the clamping diode V13, the pin 1 of the clamping diode V14 and the pin 1 of the clamping diode V15 are grounded, and the pin 5 of the TVS diode array D4, the pin 2 of the clamping diode V12, the pin 2 of the clamping diode V13, the pin 2 of the clamping diode V14 and the pin 2 of the clamping diode V15 are connected with a power supply terminal.

[0011] In one preferred embodiment, the module management unit comprises a USB_HUB circuit, a module interface circuit, a reset circuit and a crystal oscillator starting circuit; the USB_HUB circuit is connected with the module interface circuit, the reset circuit and the crystal oscillator starting circuit respectively.

[0012] In one preferred embodiment, the module interface circuit comprises a first module interface circuit, a second module interface circuit and a third module interface circuit; the first module interface circuit comprises a module interface XS1, the pins 1 and 2 of the module interface XS1 are connected with a power supply terminal, the pins 3 and 4 of the module interface XS1 are grounded, the pin 5 of the module interface XS1 is connected with a resistor R107, the pin 6 of the module interface XS1 is connected with a resistor R108, and the other ends of the resistor R107 and the resistor R108 are connected with the USB_HUB circuit.

[0013] The second module interface circuit comprises a module interface XS2, the 1 and 2 pins of the module interface XS2 are connected with a power supply end, the 3 and 4 pins of the module interface XS2 are grounded, the 5 pin of the module interface XS2 is connected with a resistor R105, the 6 pin of the module interface XS2 is connected with a resistor R106, and the other ends of the resistor R105 and the resistor R106 are connected with a USB_HUB circuit.

[0014] The third module interface circuit comprises a module interface XS3, the 1 and 2 pins of the module interface XS3 are connected with a power supply end, the 3 and 4 pins of the module interface XS3 are grounded, the 5 pin of the module interface XS3 is connected with a resistor R104, the 6 pin of the module interface XS3 is connected with a resistor R103, and the other ends of the resistor R103 and the resistor R104 are connected with a USB_HUB circuit.

[0015] In one of the preferred schemes, the reset circuit comprises a resistor R95, a resistor R97 and a capacitor C54; one end of the resistor R95 is connected with a power supply end, the other end of the resistor R95 is connected with the capacitor C54, the resistor R97 and a USB_HUB circuit respectively, the other end of the capacitor C54 is grounded, and the other end of the resistor R97 is connected with a control unit.

[0016] The technical scheme of the utility model discloses, this be used for intelligent terminal module expansion station includes: control unit, module management unit, ethernet unit, voltage sampling unit and power unit, module management unit and control unit electric connection, ethernet unit and control unit electric connection, voltage sampling unit and control unit electric connection, power unit and control unit electric connection, the output of power unit is respectively with the input of module management unit, control unit and ethernet unit electric connection, the utility model discloses simple structure can realize the collection and measurement of three -phase voltage through setting voltage sampling unit, and through special UART channel, ADC data is in real time transmitted to control unit, through module management unit supports multiple module expansion, and provides effective solution for intelligent terminal modularization, and need not replace new terminal and its component, through ethernet unit can realize the iteration and update of intelligent terminal module, solve the complex of existing intelligent terminal update iteration mode, and the technical problem that intelligent terminal module function is single, can not satisfy low -voltage distribution area multi -branch and multi -functional demand. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below only show some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in these drawings without creative labor.

[0018] Figure 1 A schematic diagram of a smart terminal module expansion dock according to an embodiment of the present application;

[0019] Figure 2 A schematic diagram of a voltage sampling unit according to an embodiment of the present application;

[0020] Figure 3 A schematic diagram of an Ethernet unit according to an embodiment of the present application;

[0021] Figure 4 A schematic diagram of a module management unit according to an embodiment of the present application.

[0022] The implementation, functional features and advantages of the present application will be further described with reference to the drawings. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the technical features. Therefore, the features with "first", "second" can explicitly or implicitly include at least one of the features.

[0025] Furthermore, the technical solutions of the various embodiments of the present application can be combined with each other, but must be based on the fact that they can be realized by those skilled in the art. When the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0026] Reference is made to Figures 1-4According to one aspect of the utility model, the utility model provides a kind of for intelligent terminal module expansion dock, wherein the for intelligent terminal module expansion dock includes: control unit, module management unit, ethernet unit, voltage sampling unit and power unit;The module management unit is electrically connected with control unit by USB interface, the ethernet unit is electrically connected with control unit by ethernet interface, the voltage sampling unit is electrically connected with control unit by UART interface;The power unit is electrically connected with control unit by GPIO interface, and the input end of module management unit, control unit and ethernet unit is electrically connected with the output end of power unit.

[0027] Specifically, in the embodiment, the control unit is expanded external interface by UART, USB, communication with voltage sampling unit is realized by UART interface, data exchange with ethernet unit is realized by ethernet interface, data interaction with module management unit is realized by USB interface, and power unit is powered on to each unit by GPIO interface control;In the utility model, the control unit uses a kind of processing of SCM600 series, main frequency 300MHz, uses embedded ARM926EJ-S TM ARM core, with special PMU, can run LINUX operating system, the model of the control unit is not specifically defined in the utility model, and can be set according to needs, the running speed of the control unit is faster than cortex-M3 and single-chip microcomputer, while supporting two-way ethernet, with multi-way UART, USB and IIC for each functional unit to provide communication channel.

[0028] Specifically, in the embodiment, the voltage sampling unit includes sampling chip D2 and voltage dividing and sampling circuit;The sampling chip D2 is connected with voltage dividing and sampling circuit and control unit respectively, and the voltage dividing and sampling circuit is connected with strong electric interface;The voltage dividing and sampling circuit includes A-phase voltage dividing and sampling circuit, B-phase voltage dividing and sampling circuit and C-phase voltage dividing and sampling circuit;The sampling chip D2 can use RN8209C or other type measurement chip, and the utility model does not specifically limit;High-precision ADC sampling and ADC data real-time transmission function of the sampling chip D2 are used, three-phase voltage sampling is realized, and ADC data is transmitted to control unit in real time through special UART channel;The voltage dividing and sampling circuit carries out voltage dividing and sampling to A-phase, B-phase and C-phase, and each phase voltage dividing and voltage sampling circuit is composed of voltage dividing resistor, sampling resistor, filter device and magnetic bead, referring to the attached Figure 2 .

[0029] Specifically, in the embodiment, the A-phase voltage dividing and sampling circuit comprises a voltage dividing resistor R56, a voltage dividing resistor R57, a voltage dividing resistor R58, a voltage dividing resistor R59, a voltage dividing resistor R60, a voltage dividing resistor R61, a magnetic bead L4, a sampling resistor R62, a capacitor C29, a sampling resistor R78 and a capacitor C30; one end of the voltage dividing resistor R56 is connected with a strong current interface, the other end of the voltage dividing resistor R56 is connected with the magnetic bead L4, the other end of the magnetic bead L4 is connected with the sampling resistor R62, the capacitor C29 and a V1P positive analog input pin of a sampling chip D2 respectively; one end of the sampling resistor R78 and the capacitor C30 is connected with a V1N negative analog input pin of the sampling chip D2, the other end of the sampling resistor R62, the capacitor C29, the sampling resistor R78 and the capacitor C30 is grounded; the high-precision voltage dividing resistors R56, R57, R58, R59, R60 and R61 are connected in series to form a voltage dividing circuit for voltage dividing, and the current flow is limited to protect the electronic components from overload or damage; the magnetic bead L4 and the voltage dividing resistors are connected in series to effectively suppress the high-frequency noise and peak interference on the signal line and the power line, and have the ability to absorb electrostatic pulses.

[0030] Specifically, in the embodiment, the B-phase voltage dividing and sampling circuit comprises a voltage dividing resistor R63, a voltage dividing resistor R64, a voltage dividing resistor R65, a voltage dividing resistor R66, a voltage dividing resistor R67, a voltage dividing resistor R68, a magnetic bead L34, a sampling resistor R69, a capacitor C31, a sampling resistor R79 and a capacitor C32; one end of the voltage dividing resistor R63 is connected with a strong current interface, the other end of the voltage dividing resistor R63 is connected with the magnetic bead L34, the other end of the magnetic bead L34 is connected with the sampling resistor R69, the capacitor C31 and a V2P positive analog input pin of a sampling chip D2 respectively; one end of the sampling resistor R79 and the capacitor C32 is connected with a V2N negative analog input pin of the sampling chip D2, the other end of the sampling resistor R69, the capacitor C31, the sampling resistor R79 and the capacitor C32 is grounded; the high-precision voltage dividing resistors R63, R64, R65, R66, R67 and R68 are connected in series to form a voltage dividing circuit for voltage dividing, and the current flow is limited to protect the electronic components from overload or damage, the magnetic bead L34 and the voltage dividing resistors are connected in series to effectively suppress the high-frequency noise and peak interference on the signal line and the power line, and have the ability to absorb electrostatic pulses.

[0031] Specifically, in the embodiment, the C-phase voltage dividing and sampling circuit comprises a voltage dividing resistor R70, a voltage dividing resistor R71, a voltage dividing resistor R72, a voltage dividing resistor R73, a voltage dividing resistor R74, a voltage dividing resistor R75, a magnetic bead L35, a sampling resistor R76, a capacitor C36, a sampling resistor R82 and a capacitor C41; one end of the voltage dividing resistor R70 is connected with a strong current interface, the other end of the voltage dividing resistor R70 is connected with the magnetic bead L35, the other end of the magnetic bead L35 is connected with the sampling resistor R76, the capacitor C36 and a V3P positive analog input pin of a sampling chip D2 respectively; one end of the sampling resistor R82 and the capacitor C41 is connected with a V3N negative analog input pin of the sampling chip D2, the other end of the sampling resistor R76, the capacitor C36, the sampling resistor R82 and the capacitor C41 is grounded; the high-precision voltage dividing resistors R70, R71, R72, R73, R74 and R75 are used to form a voltage dividing circuit to divide voltage, and at the same time, the current flow can be limited to protect the electronic components from overload or damage; the magnetic bead L35 connected with the voltage dividing resistors in series can effectively suppress high-frequency noise and sharp peak interference on the signal line and the power line, and has the ability to absorb electrostatic pulse.

[0032] Specifically, in the embodiment, the Ethernet unit comprises an Ethernet transceiver circuit and an Ethernet protection circuit; the Ethernet transceiver circuit is connected with the control unit and the Ethernet protection circuit respectively; the Ethernet transceiver circuit comprises an Ethernet transceiver chip D3 and a peripheral circuit, the Ethernet transceiver chip D3 is connected with the peripheral circuit and the Ethernet protection circuit respectively; the peripheral circuit comprises resistors R82, R83, R5, R86, R87, R88, R89, R90, R91, R92 and R93; the resistor R82 is configured as a pull-down resistor of a TXD_2 pin of the Ethernet transceiver chip D3, the resistor R83 is configured as a pull-down resistor of a TXD_3 pin of the Ethernet transceiver chip D3, the resistor R84 is configured as a pull-up resistor of a RESERVED0 pin of the Ethernet transceiver chip D3, the resistors R85 and R86 are configured as pull-up resistors of LED pins of the Ethernet transceiver chip D3, the resistor R87 is configured as a pull-down resistor of a RESET pin of the Ethernet transceiver chip D3, the resistor R88 is configured as a pull-up resistor of a MDIO pin of the Ethernet transceiver chip D3, the resistor R89 is configured as a pull-up resistor of the MDIO pin of the Ethernet transceiver chip D3, the resistor R90 is configured as a pull-down resistor of a CRS_DV pin of the Ethernet transceiver chip D3, the resistor R91 is configured as a pull-down resistor of a RX_ER pin of the Ethernet transceiver chip D3, the resistor R92 is configured as a pull-up resistor of a PHYAD1 pin of the Ethernet transceiver chip D3, and the resistor R93 is configured as a pull-up resistor of a PHYAD2 pin of the Ethernet transceiver chip D3; 3.3V is pulled up and ground is pulled down through the resistors of the peripheral circuit, so as to complete the configuration of the default initial state level of each pin of the Ethernet transceiver chip D3.

[0033] Specifically, in the embodiment, the Ethernet protection circuit comprises a TVS diode array D4, a clamping diode V12, a clamping diode V13, a clamping diode V14 and a clamping diode V15; a 1 pin of the TVS diode array D4 is connected with an Ethernet transceiver chip D3 and a 3 pin of the clamping diode V12 respectively; a 3 pin of the TVS diode array D4 is connected with the Ethernet transceiver chip D3 and a 3 pin of the clamping diode V13 respectively; a 4 pin of the TVS diode array D4 is connected with the Ethernet transceiver chip D3 and a 3 pin of the clamping diode V15 respectively; a 6 pin of the TVS diode array D4 is connected with the Ethernet transceiver chip D3 and a 3 pin of the clamping diode V14 respectively; a 2 pin of the TVS diode array D4, a 1 pin of the clamping diode V12, a 1 pin of the clamping diode V13, a 1 pin of the clamping diode V14 and a 1 pin of the clamping diode V15 are grounded, a 5 pin of the TVS diode array D4, a 2 pin of the clamping diode V12, a 2 pin of the clamping diode V13, a 2 pin of the clamping diode V14 and a 2 pin of the clamping diode V15 are connected with a power supply end; the Ethernet protection circuit is used for protecting components from being damaged by high voltage impact, and ensuring stable operation and long-term reliability of electronic equipment.

[0034] Specifically, in the embodiment, the module management unit comprises a USB_HUB circuit, a module interface circuit, a reset circuit and a crystal oscillator starting circuit; the USB_HUB circuit is connected with the module interface circuit, the reset circuit and the crystal oscillator starting circuit respectively; the USB_HUB circuit leads out a USB bus connected with the control unit, and leads out three USB buses connected with the first module interface circuit, the second module interface circuit and the third module interface circuit.

[0035] Specifically, in the embodiment, the module management unit is further provided with a peripheral filter circuit, the peripheral filter circuit comprises a capacitor C57, a capacitor C58, a capacitor C59, a capacitor C60, a capacitor C61, a capacitor C62, a capacitor C63, a capacitor C64 and a capacitor C65; one end of the capacitor C57, the capacitor C58, the capacitor C59, the capacitor C60, the capacitor C61, the capacitor C62, the capacitor C63, the capacitor C64 and the capacitor C65 is connected with the USB_HUB circuit, and the other end of the capacitor C57, the capacitor C58, the capacitor C59, the capacitor C60, the capacitor C61, the capacitor C62, the capacitor C63, the capacitor C64 and the capacitor C65 is grounded; the generated noise is inhibited, filtered and decoupled through the peripheral filter circuit.

[0036] Specifically, in the embodiment, the module interface circuit includes a first module interface circuit, a second module interface circuit and a third module interface circuit; the first module interface circuit includes a module interface XS1, pins 1 and 2 of the module interface XS1 are connected with a power supply end, pins 3 and 4 of the module interface XS1 are grounded, pin 5 of the module interface XS1 is connected with a resistor R107, pin 6 of the module interface XS1 is connected with a resistor R108, the other ends of the resistor R107 and the resistor R108 are connected with a USB_HUB circuit; the second module interface circuit includes a module interface XS2, pins 1 and 2 of the module interface XS2 are connected with the power supply end, pins 3 and 4 of the module interface XS2 are grounded, pin 5 of the module interface XS2 is connected with a resistor R105, pin 6 of the module interface XS2 is connected with a resistor R106, the other ends of the resistor R105 and the resistor R106 are connected with the USB_HUB circuit; the third module interface circuit includes a module interface XS3, pins 1 and 2 of the module interface XS3 are connected with the power supply end, pins 3 and 4 of the module interface XS3 are grounded, pin 5 of the module interface XS3 is connected with a resistor R104, pin 6 of the module interface XS3 is connected with a resistor R103, the other ends of the resistor R103 and the resistor R104 are connected with the USB_HUB circuit; by arranging the resistor R108, the resistor R107, the resistor R106, the resistor R105, the resistor R104 and the resistor R103 in series on the USB signal line in the first module interface circuit, the second module interface circuit and the third module interface circuit, impedance matching and electrostatic discharge protection are achieved.

[0037] Specifically, in the embodiment, the reset circuit includes a resistor R95, a resistor R97 and a capacitor C54; one end of the resistor R95 is connected with a power supply end, the other end of the resistor R95 is connected with the capacitor C54, the resistor R97 and a USB_HUB circuit respectively, the other end of the capacitor C54 is grounded, the other end of the resistor R97 is connected with a control unit, the capacitor C54 is a decoupling capacitor, the reset circuit is used to restore the circuit to an initial state, ensure correct startup and stable operation, and configure an initial level as a high level.

[0038] Specifically, in the embodiment, the crystal oscillator starting circuit comprises a resistor R98, a capacitor C55, a capacitor C56 and a crystal oscillator Y3; one end of the resistor R98 is connected with the capacitor C55, the crystal oscillator Y3 and the USB_HUB circuit respectively, the other end of the resistor R98 is connected with the capacitor C56, the crystal oscillator Y3 and the USB_HUB circuit respectively, the other end of the capacitor C56 is connected with the other end of the capacitor C55 and the ground terminal respectively, and the other pins of the crystal oscillator Y3 are grounded; the capacitor C55 and the capacitor C56 can be the load capacitor matching degree selection value of the crystal oscillator, a stable clock signal is generated through the crystal oscillator starting circuit, and normal operation and performance stability of the equipment are ensured.

[0039] For the convenience of understanding the related terms of the utility model, the following is explained:

[0040] USB / IP: It is a network-based device sharing mechanism, which can share the USB device connected by device A (server end) to remote device B (client end) through network.

[0041] Docking station: It is a module expansion device supporting USB module sharing through USBIP protocol and docking station body device management through TCP module management protocol.

[0042] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct / indirect application in other related technical fields under the utility model concept of the utility model, and the contents of the utility model specification and drawings are included in the patent protection range of the utility model.

Claims

1. A docking station for smart terminal modules, characterized in that, The utility model relates to a kind of modular management system, including: Control unit, module management unit, Ethernet unit, voltage sampling unit and power supply unit; The module management unit is electrically connected with the control unit, the Ethernet unit is electrically connected with the control unit, the voltage sampling unit is electrically connected with the control unit;The output end of the power supply unit is electrically connected with the input end of module management unit, control unit and Ethernet unit respectively.

2. The docking station of claim 1, wherein, The voltage sampling unit includes sampling chip D2 and voltage dividing and sampling circuit; The sampling chip D2 is connected with voltage dividing and sampling circuit and control unit respectively, and the voltage dividing and sampling circuit is connected with strong electricity interface;The voltage dividing and sampling circuit includes A-phase voltage dividing and sampling circuit, B-phase voltage dividing and sampling circuit and C-phase voltage dividing and sampling circuit.

3. The docking station of claim 2, wherein, The A-phase voltage dividing and sampling circuit includes voltage dividing resistor R56, magnetic bead L4, sampling resistor R62, capacitor C29, sampling resistor R78 and capacitor C30;One end of voltage dividing resistor R56 is connected with strong electricity interface, the other end of voltage dividing resistor R56 is connected with magnetic bead L4, the other end of magnetic bead L4 is connected with sampling resistor R62, capacitor C29 and V1P positive analog input pin of sampling chip D2 respectively;One end of sampling resistor R78 and capacitor C30 is connected with V1N negative analog input pin of sampling chip D2, and the other end of sampling resistor R62, capacitor C29, sampling resistor R78 and capacitor C30 is grounded.

4. The docking station of claim 2, wherein, The B-phase voltage dividing and sampling circuit includes voltage dividing resistor R63, magnetic bead L34, sampling resistor R69, capacitor C31, sampling resistor R79 and capacitor C32;One end of voltage dividing resistor R63 is connected with strong electricity interface, the other end of voltage dividing resistor R63 is connected with magnetic bead L34, the other end of magnetic bead L34 is connected with sampling resistor R69, capacitor C31 and V2P positive analog input pin of sampling chip D2 respectively;One end of sampling resistor R79 and capacitor C32 is connected with V2N negative analog input pin of sampling chip D2, and the other end of sampling resistor R69, capacitor C31, sampling resistor R79 and capacitor C32 is grounded.

5. The docking station of claim 2, wherein, The C-phase voltage dividing and sampling circuit includes voltage dividing resistor R70, magnetic bead L35, sampling resistor R76, capacitor C36, sampling resistor R82 and capacitor C41;One end of voltage dividing resistor R70 is connected with strong electricity interface, the other end of voltage dividing resistor R70 is connected with magnetic bead L35, the other end of magnetic bead L35 is connected with sampling resistor R76, capacitor C36 and V3P positive analog input pin of sampling chip D2 respectively;One end of sampling resistor R82 and capacitor C41 is connected with V3N negative analog input pin of sampling chip D2, and the other end of sampling resistor R76, capacitor C36, sampling resistor R82 and capacitor C41 is grounded.

6. The docking station for smart terminal module according to any one of claims 1-5, wherein, The Ethernet unit includes an Ethernet transceiver circuit and an Ethernet protection circuit; the Ethernet transceiver circuit is connected with the control unit and the Ethernet protection circuit respectively; the Ethernet transceiver circuit includes an Ethernet transceiver chip D3 and a peripheral circuit, and the Ethernet transceiver chip D3 is connected with the peripheral circuit and the Ethernet protection circuit respectively.

7. The docking station of claim 6, wherein the docking station is configured to be connected to the smart terminal module through a USB interface. The Ethernet protection circuit includes a TVS diode array D4, a clamping diode V12, a clamping diode V13, a clamping diode V14 and a clamping diode V15; a 1 pin of the TVS diode array D4 is connected with a 3 pin of the Ethernet transceiver chip D3 and the clamping diode V12 respectively; a 3 pin of the TVS diode array D4 is connected with a 3 pin of the Ethernet transceiver chip D3 and the clamping diode V13 respectively; a 4 pin of the TVS diode array D4 is connected with a 3 pin of the Ethernet transceiver chip D3 and the clamping diode V15 respectively; a 6 pin of the TVS diode array D4 is connected with a 3 pin of the Ethernet transceiver chip D3 and the clamping diode V14 respectively; a 2 pin of the TVS diode array D4, a 1 pin of the clamping diode V12, a 1 pin of the clamping diode V13, a 1 pin of the clamping diode V14 and a 1 pin of the clamping diode V15 are grounded, and a 5 pin of the TVS diode array D4, a 2 pin of the clamping diode V12, a 2 pin of the clamping diode V13, a 2 pin of the clamping diode V14 and a 2 pin of the clamping diode V15 are connected with a power supply end.

8. The docking station for smart terminal module according to any one of claims 1-5, wherein, The module management unit includes a USB_HUB circuit, a module interface circuit, a reset circuit and a crystal oscillator starting circuit; the USB_HUB circuit is connected with the module interface circuit, the reset circuit and the crystal oscillator starting circuit respectively.

9. The docking station of claim 8, wherein, The module interface circuit includes a first module interface circuit, a second module interface circuit and a third module interface circuit; the first module interface circuit includes a module interface XS1, 1 and 2 pins of the module interface XS1 are connected with a power supply end, 3 and 4 pins of the module interface XS1 are grounded, a 5 pin of the module interface XS1 is connected with a resistor R107, a 6 pin of the module interface XS1 is connected with a resistor R108, and the other ends of the resistor R107 and the resistor R108 are connected with the USB_HUB circuit; The second module interface circuit includes a module interface XS2, 1 and 2 pins of the module interface XS2 are connected with a power supply end, 3 and 4 pins of the module interface XS2 are grounded, a 5 pin of the module interface XS2 is connected with a resistor R105, a 6 pin of the module interface XS2 is connected with a resistor R106, and the other ends of the resistor R105 and the resistor R106 are connected with the USB_HUB circuit; The third module interface circuit includes a module interface XS3, pins 1 and 2 of the module interface XS3 are connected with a power supply end, pins 3 and 4 of the module interface XS3 are grounded, pin 5 of the module interface XS3 is connected with a resistor R104, pin 6 of the module interface XS3 is connected with a resistor R103, the other ends of the resistor R103 and the resistor R104 are connected with a USB_HUB circuit.

10. The docking station of claim 8, wherein, The reset circuit includes a resistor R95, a resistor R97 and a capacitor C54; one end of the resistor R95 is connected with a power supply end, the other end of the resistor R95 is connected with the capacitor C54, the resistor R97 and a USB_HUB circuit respectively, the other end of the capacitor C54 is grounded, the other end of the resistor R97 is connected with a control unit.

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