CN107565632A - A kind of charging base of adaptive switching communication interface - Google Patents
A kind of charging base of adaptive switching communication interface Download PDFInfo
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Abstract
A kind of charging base of adaptive switching communication interface provided by the invention, including：MCU Logic control modules, communication interface handover module, Micro USB interfaces, USBTYPE A interfaces and RJ45 interfaces；The MCU Logic control modules are connected with the communication interface handover module；The communication interface handover module is connected with the Micro USB interfaces, the USB TYPE A interfaces and the RJ45 interfaces；The Micro USB interfaces, USB TYPE A interfaces and RJ45 interfaces are arranged on the back shroud of charging base.The charging base of the present invention can be realized automatically to be automatically switched between Micro USB interfaces, RJ45 interfaces, USB TYPE A interfaces, substantially increases the use value of charging base.
Description
Technical field
The present invention relates to Internet technical field, more particularly, to a kind of charging bottom of adaptive switching communication interface
Seat.
Background technology
It is adaptive be exactly during processing and analysis, according to the data characteristics adjust automatically processing method of processing data,
Processing sequence, processing parameter, boundary condition or constraints, make its Statistical Distribution Characteristics with handled data, architectural feature
It is adapted, to obtain the process of optimal treatment effect.Adaptive process is a process for constantly approaching target, and it is followed
Approach represented with mathematical modeling, referred to as adaptive algorithm.
Communication interface is the passage that equipment is used for signal transmission.Include the transmission of the data such as sound, picture.In safety monitoring
Communication interface in system be mainly to video, audio input and output for.So communication interface typically have it is following several：
RS-232, RS-485, universal network interface, the various networked environments of PSTN, ISDN and LAN can be supported, there is USB2.0 superelevation
Fast data-interface, connection computer are backed up to important image document, can matched with progressive scan VGA output interfaces etc..
Handheld terminal belongs to the product that specific area uses, different with ordinary consumption electronic product, due to its knot
The particularity of structure and function, generally requires the charging base for providing and matching, and this charging base is broadly divided into two major classes：It is a kind of
It is to be used to handheld terminal charging use, has fixed card slot on charging base, after handheld terminal inserts neck, can complete to hand-held
The charge function of terminal；Another kind of is to be used for lithium cell charging, when handheld terminal needs charging, first takes out lithium battery, puts
Enter and lithium battery is charged in the neck that charges.
But existing charging base can be only done the charge function of handheld terminal, when particular customer colony because secrecy is advised
The reason such as fixed, handheld terminal can only be allowed to pass through base access to LAN in a wired fashion；When particular customer colonial need is in hand
When holding terminal charge, pass through the data in charging base read-write USB device；Or when particular customer colonial need is hand-held whole
During the charging of end, communicated by charging base and desktop computer, existing charging base can not meet customer need.
The content of the invention
For above-mentioned technical problem, the present invention provides a kind of charging base of adaptive switching communication interface.
In a first aspect, the present invention provides a kind of charging base of adaptive switching communication interface, including：MCU logic controls
Module, communication interface handover module, Micro USB interfaces, USB TYPE A interfaces and RJ45 interfaces；The MCU logic controls
Module is connected with the communication interface handover module；It is the communication interface handover module and the Micro USB interfaces, described
USB TYPE A interfaces and the RJ45 interfaces are connected；The Micro USB interfaces, USB TYPE A interfaces and RJ45 interfaces
It is arranged on the back shroud of charging base.
Wherein, the charging base also includes：Charge control module and Ethernet detection module；
The charge control module is connected with the MCU Logic control modules and the USBTYPE A interfaces, for real-time
Detect the state of signal wire in the USB TYPE A interfaces；
The Ethernet detection module is connected with the MCU Logic control modules and the RJ45 interfaces, for examining in real time
Whether survey in the RJ45 interfaces has crystal head insertion.
Wherein, the charging base also includes：With the MCU Logic control modules, the communication interface handover module, institute
State charge control module and the connected power management module of the Ethernet detection module；The power management module is used for
Whole charging base provides power supply.
Wherein, the charging base also includes：Include physical layer transceiver, the first crystal oscillator, network transformer, electrically-erasable
The ethernet communication module of programmable read only memory and the RJ45 interfaces；
The upper strata communication interface of the physical layer transceiver is USB interface；First crystal oscillator is the physical layer transceiver
Device provides clock signal；The EEPROM is used for the physical address for storing physical layer；The network
Transformer is used to the differential signal of physical layer transceiver output being changed into network transmission signal.
Wherein, the charging base also includes：Comprising universal serial bus concentrator, the Micro USB interfaces, described
The USB communication control modules of USB TYPE A interfaces；
The Micro USB interfaces are used for data communication between handheld terminal and PC, or, it is charging adapter to hand
Hold terminal charge and interface is provided；The USB TYPE A interfaces are used to connect USB slave units；The universal serial bus concentrator
For a USB interface for connecting handheld terminal to be expanded into multiple USB interfaces.
Wherein, the power management module includes connector and low pressure difference linear voltage regulator chip；
The power input pin of the connector and the power management module and the low pressure difference linear voltage regulator chip
Input be connected, for providing VCC5 power supplys；
The output end of the low pressure difference linear voltage regulator chip and the physical layer transceiver, the USB collection
The power supply signal of line device and the MCU Logic control modules is connected, for providing VCC3 power supplys.
Wherein, the MCU logic controls mould includes microcontroller U13；44 pin BOOT0 of the microcontroller pass through resistance
R63 drop-downs ground connection, 20 pin BOOT1 are pulled down by resistance R67 and are grounded；7 pin NRST of the microcontroller are pulled up by resistance R61
Connect the output end of the low pressure difference linear voltage regulator chip；4 pin OE1 of the microcontroller and the communication interface handover module
In the first USB switches be connected, 21 pin OE2 of the microcontroller and the 2nd USB switch phases in communication interface handover module
Even；The 12 pin DP+_De1 and 13 pin DM-_De1 of the microcontroller are connected with the universal serial bus concentrator；It is described
The 40 pin RESET and 15 pin Hub_con of microcontroller are connected with the universal serial bus concentrator；The microcontroller
17 pin are connected with the Pad_current signals of the charge control module；11 pin AD_Ethernet of the microcontroller and institute
The infrared sensor for stating Ethernet detection module is connected.
Wherein, the 4 pin D-_mini and 5 pin D+_mini of the first USB switches of the communication interface handover module are and institute
The signal pins for stating Micro USB interfaces are connected；
The 4 pin DM_D and 5 pin DM_P of the 2nd USB switches of the communication interface handover module are total with the general serial
The USB host port of line hub is connected；
The 1 pin D+_PDA and 2 pin D-_PDA that first USB switch and the 2nd USB are switched with handheld terminal
USB interface is connected.
Wherein, the charge control module includes resettable fuse, operational amplifier, p-type metal-oxide-semiconductor, N-type triode
Q1；
The in-phase input end of the operational amplifier is connected with the negative electrode of handheld terminal, output end and the MCU logics
17 pin of control module are connected；The source electrode of the p-type metal-oxide-semiconductor is connected by 0 Europe resistance with the power management module, drain with
The positive electrode of handheld terminal is connected；The base stage of the N-type triode Q1 is connected with 2 pin of the MCU Logic control modules.
Wherein, the Ethernet detection module includes infrared sensor；2 pin and 3 pin of the infrared sensor connect electricity
Source control module；1 pin of the infrared sensor is grounded by resistance R2,4 pin are grounded by resistance R1, while the infrared biography
11 pin of 4 pin of sensor also with the MCU Logic control modules are connected.
A kind of charging base of adaptive switching communication interface provided by the invention, by communication interface handover module, makes
Charging base can automatically be realized and cut automatically between Micro USB interfaces, RJ45 interfaces, USB TYPE A interfaces
Change；And passing through MCU Logic control modules so that handheld terminal may be at corresponding pattern when using different interfaces,
So as to ensure that each interface switches in time, to realize the demand according to user, different communication interfaces is switched to, is fully improved
The use value of charging base, while also improve the experience sense of user.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structured flowchart of the charging base of adaptive switching communication interface provided in an embodiment of the present invention；
Fig. 2 is the electricity of the ethernet communication control module in the charging base of the adaptive switching communication interface shown in Fig. 1
Lu Tu；
Fig. 3 is the circuit of the USB communication control modules in the charging base of the adaptive switching communication interface shown in Fig. 1
Figure；
Fig. 4 is the circuit diagram of the power management module in the charging base of the adaptive switching communication interface shown in Fig. 1；
Fig. 5 is the circuit of the MCU Logic control modules in the charging base of the adaptive switching communication interface shown in Fig. 1
Figure；
Fig. 6 is the circuit of the communication interface handover module in the charging base of the adaptive switching communication interface shown in Fig. 1
Figure；
Fig. 7 is the circuit diagram of the charge control module in the charging base of the adaptive switching communication interface shown in Fig. 1；
Fig. 8 is the circuit diagram of the Ethernet detection module in the charging base of the adaptive switching communication interface shown in Fig. 1.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is explicitly described, it is clear that described embodiment be the present invention
Part of the embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
The every other embodiment obtained under the premise of creative work is made, belongs to the scope of protection of the invention.
Charging base, including base upper casing, base front shroud, base back shroud and base lower cover；Base upper casing and bottom
Seat front shroud, base back shroud and base lower cover have connection.Base upper casing is used to provide charging neck, hand to handheld terminal
It can be industrial handheld terminal to hold terminal, and industrial handheld terminal includes industrial PDA, bar code handheld terminal, and RFID holds middle-range
From all-in-one etc..The characteristics of industrial handheld terminal be exactly it is firm, it is durable, the more severe place of many links can be used in, together
When many optimization has been done for industrial application feature.Technical grade handheld terminal can support RFID read-write and bar code scan simultaneously
Function, IP64 industrial levels are provided simultaneously with, these are not available for consumer handheld terminal.Base front shroud is mainly used in
Seat fills main board work state instruction, and power supply indicator brightness is mainly delivered on front panel by instruction process using light-guiding pillar.Its
Middle motherboard power supply indicator lamp uses a monochromatic burner, and seat fills power supply indicator display red after electricity with, and otherwise indicator lamp extinguishes.
In order that charging base has the function of adaptive switching communication interface, a kind of adaptive switching communication is now provided and connect
The charging base of mouth, as shown in Figure 1.
Specifically, include with reference to Fig. 1, the charging base：MCU Logic control modules 101, communication interface handover module 102,
Micro USB interfaces, USB TYPE A interfaces and RJ45 interfaces；The MCU Logic control modules 101 are cut with the communication interface
Block 102 is changed the mold to be connected；The communication interface handover module 102 and the Micro USB interfaces, the USB TYPE A interfaces and
The RJ45 interfaces are connected；The Micro USB interfaces, USB TYPE A interfaces and RJ45 interfaces are arranged in charging base
Back shroud on.
Wherein, micro-control unit (Microcontroller Unit；MCU), also known as one chip microcomputer (Single
Chip Microcomputer) or single-chip microcomputer, it is central processing unit (Central Process Unit；CPU frequency)
Appropriate reduction is done with specification, and by internal memory (memory), counter (Timer), USB, A/D conversion, UART, PLC, DMA isoperimetric
Side interface, or even LCD drive circuits are all incorporated on one chip, form the computer of chip-scale, are different application scenarios
Do various combination control.
Wherein, Micro USB interfaces are a portable versions of the standards of USB 2.0, the Mini used than part mobile phone
USB interface is smaller, and Micro-USB is Mini-USB specification of future generation, by USB standard tissue U.S. USB
Implementers Forum (USB-IF) are formulated on January 4th, 2007 and completed.Micro-USB supports OTG, and Mini-USB
Equally, and 5pin.The definition of Micro series includes the Micro-B series of receptacle that standard device uses；OTG equipment uses
Micro-AB slots；Micro-A and Micro-B plugs, also cable.The unique distinction of Micro series is that they contain
Stainless steel casing, ten thousand plugs are not a problem.
Wherein, RJ45 interfaces are one kind of telecommunications outlet in wiring system (communicate exit) connector, connector by
Plug (joint, crystal head) and socket (module) composition, plug have 8 grooves and 8 contacts.RJ is Registered Jack
Abbreviation, mean " socket of registration ".RJ is description public power in FCC (FCC's standard and regulations)
The interface of communication network, the RJ45 of computer network is being commonly called as 8 modular interfaces of standard.
In one embodiment, MCU Logic control modules 101 are mainly used in controlling handheld terminal charge control and communication to connect
Mouth switching control.Communication interface handover module 102 is mainly responsible for handheld terminal USB interface and connect with Micro USB on charging base
Automatically switched between mouth, RJ45 interfaces, USB TYPE A interfaces.The Micro USB interfaces being arranged on back shroud are used for
It is used to be connected with USB device with PC communications, USB TYPE A interfaces, RJ45 interfaces are with cable network for being connected.
When handheld terminal insertion charging base charged when, MCU Logic control modules 101 detect in real time RJ45 interfaces and
At USB TYPE A interfaces 104, the plug state of peripheral hardware.When detect Ethernet crystal head or USB device insertion back shroud
Corresponding to upper during interface, then function corresponding to Micro USB interfaces is closed, open function and USB TYPE corresponding to RJ45 interfaces
Function corresponding to A interfaces 104；When not detecting that Ethernet crystal head or USB device insert, then acquiescence supports Micro
Function corresponding to USB interface.Because when using RJ45 interface functions with USB TYPE A interface functions, handheld terminal need to be in
Holotype, and when using MICRO usb functions, handheld terminal need to be in slave pattern, and handheld terminal is not simultaneously in
Two kinds of operational mode states, then examinations are carried out by MCU Logic control modules 101, and adjust the work of handheld terminal accordingly
Operation mode, to ensure that each interface function switches in time.
In embodiments of the present invention, communication interface handover module is passed through so that charging base can be realized in Micro automatically
Automatically switched between USB interface, RJ45 interfaces, USB TYPE A interfaces；And pass through MCU Logic control modules so that
Handheld terminal may be at corresponding pattern, so as to ensure that each interface switches in time, with reality when using different interfaces
Now according to the demand of user, different communication interfaces is switched to, lifts the experience sense of user.
The embodiment of the present invention is illustrated below, but not limited the scope of the invention.Specifically charging
The monolithic case of base includes：Base upper casing, base front shroud, base back shroud and base lower cover.Base upper casing has one
Charge neck, is mainly used in handheld terminal and uprightly charges.Front of chassis plate has a light indicator hole, refers to for base power state
Show the display of lamp, when base there are 5V plant-grid connections, indicator lamp display is red.The back shroud of charging base includes a 5V
DC sockets, a 5V Micro USB, a RJ45 interface, a USB TYPE A interface for connecing USB device；DC sockets
It is used to meet the power supply adaptor of distinct interface with Micro USBs, meanwhile, Micro USB interfaces support handheld terminal to exist
During charging data communication is carried out with PC.
On the basis of above-described embodiment, the charging base, in addition to：Charge control module and Ethernet detection mould
Block；The charge control module is connected with the MCU Logic control modules 101 and the USB TYPE A interfaces, for real-time
Detect the state of signal wire in the USB TYPE A interfaces；The Ethernet detection module and the MCU Logic control modules
101 and the RJ45 interfaces be connected, for detecting in the RJ45 interfaces whether have crystal head insertion in real time.
Specifically, charge control module, which is mainly used in controlling the break-make of handheld terminal charge circuit, detecting handheld terminal, is
The state of signal wire in no effectively connection charge circuit and in real time detection USB TYPE A interfaces.Ethernet detection module master
It is used to detect whether that Ethernet crystal head inserts in real time.When handheld terminal insertion charging base is charged, power supply refers to
Show that lamp display is red.MCU Logic control modules 101 by Ethernet detection module, detect in real time whether have in RJ45 interfaces with
Too net crystal head inserts；And MCU Logic control modules 101 detect USB TYPE A interfaces in real time by charge control module
The state of two signal wires in 104, determine whether that USB device inserts in time.Under default conditions, MCU Logic control modules 101
Micro USB interfaces are made to be in effective status, when having detected that USB device insertion or Ethernet crystal head access, then certainly
It is dynamic to close Micro USB interfaces, RJ45 interfaces and USB TYPE A interfaces 104 are opened, to realize according to user's request, is cut automatically
Change the purpose of communication interface.
On the basis of the various embodiments described above, the charging base also includes：With the MCU Logic control modules 101, institute
State communication interface handover module 102, the charge control module and the connected power management mould of the Ethernet detection module
Block；The power management module is used to provide power supply for whole charging base.
Specifically, in embodiments of the present invention, power management module be mainly used in 5V power inputs protection and by 5V electricity
Source is converted to 3.3V power supplys, but is not limited thereto.When handheld terminal insertion charging base is charged, power management module
Can be to need the part of 5V power supplys and module to provide 5V power supplys, while to need the part of 3.3V power supplys and module to provide 3.3V
Power supply, to reach the purpose that power supply can be provided for whole charging base.
On the basis of the various embodiments described above, with reference to Fig. 2, the charging base, in addition to：Include physical layer transceiver
U1, the first crystal oscillator Y1, network transformer U3, the ether with electrically erasable programmable read-write memory U4 and the RJ45 interfaces U2
Net communication module；The upper strata communication interface of the physical layer transceiver is USB interface；The first crystal oscillator Y1 is the physical layer
Transceiver U1 provides clock signal；The EEPROM U4 is used for the physical address for storing physical layer；
The network transformer U3 is used to the physical layer transceiver U1 differential signals exported being changed into network transmission signal.
Wherein, physical layer (or physical layer, Physical Layer) is minimum one in computer network osi model
Layer.Physical layer provides:Create, maintain, remove for the physical link required for transmission data, and provide with machinery, electronics
, function and specification characteristic.Briefly, physical layer ensures that original data can be transmitted on various physical mediums.Office
Domain net all belongs to the 1st, 2 layer with wide area network.
Wherein, network transformer specifically has T1/E1 isolating transformers；ISDN/ADSL interface transformers；VDSL high passes/low
Allpass filter block, interface transformer；T3/E3, SDH, 64KBPS interface transformer；10/100BASE, 1000BASE-TX network
Wave filter；RJ45 integrated transformers；Design specialized transformer can be also needed according to client.
Wherein, EEPROM (electrically erasable programmable
Read-only memory, EEPROM) it is the modifiable read-only storage of user (ROM), it can be by higher than common voltage
Act on to wipe and reprogram (rewriting).Different from EPROM chips, EEPROM is not required to take out from computer and can changed.But
It is that eeprom chip all can only be wiped and reprogrammed every time, and can not is selective.Its same also limited longevity
Life --- that is, within the number of reprogrammable is limited to tens times or is hundreds and thousands of time.In an EEPROM, work as meter
Calculation machine can be reprogrammed frequently when in use, and EEPROM life-span is that a critically important design considers parameter.
Specifically, when MCU Logic control modules 101 are by Ethernet detection module, detected that Ethernet crystal head is inserted
It is automatic to close MicroUSB interfaces when entering the RJ45 interfaces on back shroud, RJ45 interfaces are opened, so that the handheld terminal can lead to
Overcharge base access to LAN.Now, ethernet communication module is mainly responsible for RJ45 network signal being converted into USB letters
Number, the handheld terminal only with USB interface is carried out data exchange with cable network.That is, in ethernet communication module
The upper strata communication interface of physical layer transceiver is USB interface, and unconventional Streaming Media interface, on the USB interface and back shroud
RJ45 orifices.Crystal oscillator Y1 provides 25MHz clock signal for physical layer transceiver U1.EEPROM U4 are used to store thing
Manage the information such as layer MAC address.Network transformer U3 is used to the differential signal of physical layer transceiver output becoming network transmission letter
Number, to complete ethernet communication.
On the basis of the various embodiments described above, with reference to Fig. 3, the charging base, in addition to：Include USB collection
Line device U5, the Micro USB interfaces, the USB communication control modules of the USB TYPE A interfaces；The Micro USB connect
The data communication that mouth CON1 is used between handheld terminal and PC, or, provide interface to handheld terminal charging for charging adapter；
The USB TYPE A interfaces are used to connect USB slave units；The universal serial bus concentrator U5 is used for connection is hand-held eventually
One USB interface at end expands to multiple USB interfaces.
Wherein, universal serial bus concentrator, i.e. USB Hub, it is more to refer to that one kind can expand to a USB interface
It is individual, and these interfaces device used at the same time can be made.USB HUB usb protocols belonging to can be divided into USB2.0HUB,
USB3.0HUB and USB3.1HUB.
Specifically, when handheld terminal is charged by charging base, MCU Logic control modules 101 pass through charge control mould
Block, when having detected USB device insertion, MCU Logic control modules 101 close Micro USB interfaces automatically, open USB TYPE
A interfaces 104, so that the data that the handheld terminal can be read and write in USB device by charging base.Now, USB Communication Controls mould
Block is mainly responsible for RJ45 interfaces and carries out data communication, i.e. USB Communication Controls mould with handheld terminal simultaneously with USB TYPE A interfaces
Micro USB interfaces CON1 in block carries out data communication between handheld terminal and PC, or charging adapter passes through this
Micro USB interfaces CON1 charges to handheld terminal.USB TYPE A interfaces CON2 is used to connect USB slave units so that hand-held
The data that terminal can be read and write in USB slave units by USB TYPE A interfaces CON2.Universal serial bus concentrator U5 will
One USB interface of connection handheld terminal expands multiple USB interfaces, supports USB device to connect while exist with Ethernet.
On the basis of the various embodiments described above, with reference to Fig. 4, the power management module includes connector J15 and low voltage difference
Linear voltage regulator chip U11；The power input pin of the connector J15 and the power management module and the low voltage difference
Linear voltage regulator chip U11 input is connected, for providing VCC5 power supplys；The low pressure difference linear voltage regulator chip U11's
Output end and the physical layer transceiver U1, the universal serial bus concentrator U5 and the MCU Logic control modules 101
Power supply signal is connected, for providing VCC3 power supplys.
Wherein, connector, i.e. CONNECTOR.The country is also referred to as connector, plug and socket.Generally refer to electrical equipment connection
Device.The device of two active devices is connected, transmits electric current or signal.
Wherein, low pressure difference linear voltage regulator (low dropout regulator, LDO) is that the integrated circuit of a new generation is steady
Depressor, its difference maximum with three terminal regulator are that LDO is the very low miniature on-chip system (SOC) of a consumable.It can
Controlled for electric current main channel, the mosfet with conducting resistance on extremely low line, Schottky diode, sampling are integrated with chip
The hardware circuit such as resistance and divider resistance, and with overcurrent protection, overheat protector, accurate a reference source, difference amplifier, delayer
Etc. function.Low pressure difference linear voltage regulator generally has extremely low own noise and higher PSRR.
Specifically, power management module includes connector J15, TVS pipe D24, electric capacity C51, C52, C92, C94, C95,
C99, C101, resistance R92, R97, LDO chip U11, as shown in Figure 4.The power input of the power management module and connector J15
Pin is connected, and VCC5 power supplys are provided to whole mainboard；And it is defeated that connector J15 also provides VCC5 power supplys to 1 pin of LDO chips
Enter.LDO chip U11 inputs and physical layer transceiver U1, universal serial bus concentrator U5 and MCU Logic control module 101
Power supply signal be connected.
The charging base has two kinds of plant-grid connection modes, and one kind is to input 5V2A power supplys by Micro USB interfaces CON1,
Another kind is by DC interfaces, i.e. connector J15 input 5V2A power supplys.The 5V power supplys are used for handheld terminal and charged all the way, and second
5V is converted into 3.3V by road by LDO chips U11, for physical layer transceiver U1, universal serial bus concentrator U5 and MCU
The working power of Logic control module 101.
In addition, the power management module also includes TVS pipe D24, electric capacity C51, C52, C92, C94, C95, C99, C101, electricity
R92, R97 are hindered, its specific annexation is with reference to figure 4.
On the basis of the various embodiments described above, with reference to Fig. 1 and Fig. 5, the MCU logic controls mould 101 includes microcontroller
U13, and 44 pin BOOT0 of the microcontroller are grounded by resistance R63 drop-downs, 20 pin BOOT1 under resistance R67 by socketing
Ground；7 pin NRST of the microcontroller are by socketing the output end of the low pressure difference linear voltage regulator chip on resistance R61；Institute
State 4 pin OE1 of microcontroller be connected with the first USB switches in the communication interface handover module, the 21 of the microcontroller
Pin OE2 is connected with the 2nd USB switches in communication interface handover module；12 pin DP+_De1 of the microcontroller and 13 pin
DM-_De1 is connected with the universal serial bus concentrator；The 40 pin RESET and 15 pin Hub_con of the microcontroller are equal
It is connected with the universal serial bus concentrator；17 pin of the microcontroller and the Pad_ of the charge control module
Current signals connect；11 pin AD_Ethernet of the microcontroller and the infrared sensor of the Ethernet detection module
It is connected.
Wherein, microcontroller is by the integrated miniature calculating of single-chip on a single die of the major part of microcomputer
Machine.Microcontroller is born in mid-term the 1970s, and by the development of more than 20 years, its cost was more and more lower, and performance is more next
More powerful, this makes its application ubiquitous, throughout every field.Such as motor control, barcode reader/scanner, disappear
Expense electron-like, game station, phone, HVAC, building safety and access control, Industry Control and automation and white domestic appliances (are washed
Clothing machine, micro-wave oven) etc..
Specifically, after handheld terminal is charged by charging base, power supply indicator display is red, low pressure difference linear voltage regulator
Chip, i.e. LDO chips are that MCU Logic control modules 101 provide 3.3V power supplys.MCU Logic control modules 101 are examined by Ethernet
Survey module and detect whether RJ45 interfaces have connector insertion in real time；MCU Logic control modules 101 are real-time by charge control module
The state of two signal wires in USB TYPE A interfaces is detected, determines whether that USB device inserts in time.Under default conditions, MCU
The first USB switches and the 2nd USB switches in the communication control interface module 102 of Logic control module 101, meet Micro USB
Mouth is in effective status, when having detected that USB device insertion or Ethernet crystal head access, then closes Micro automatically
USB interface, open RJ45 interfaces and USB TYPE A interfaces.
In addition, MCU Logic control modules also include red light emitting diodes D8, resistance R41, R61, R63, R66, R67,
R102, and the 3rd crystal oscillator Y3, its specific annexation is referring to Fig. 5.
On the basis of the various embodiments described above, with reference to Fig. 6, the first USB switches in the communication interface handover module 102
Signal pins with the Micro USB interfaces of 4 pin D-_mini and 5 pin D+_mini be connected；The communication handover module
In the USB host ports with the universal serial bus concentrator of 4 pin DM_D and 5 pin DM_P of the 2nd USB switches be connected；Institute
State the USB interface phase of the 1 pin D+_PDA and 2 pin D-_PDA of the first USB switches and the 2nd USB switches with handheld terminal
Even.
Specifically, when handheld terminal is charged by charging base, communication interface handover module 102 gives tacit consent to the first USB switches
U14 openings, the 2nd USB switches U15 are closed.When charge control module has detected USB device insertion, or
Person, when Ethernet detection module has detected network signal access, communication interface handover module 102 automatically switchs the first USB
U14 switches to closed mode, and the 2nd USB switches U15 switches to opening.
In addition, 8 pin, 10 pin of the first USB switches and the 2nd USB switches in communication interface handover module 102 pass through
One 10 Ω resistance eutral grounding.
On the basis of above-described embodiment, with reference to Fig. 7, the charge control module includes resettable fuse F1, computing
Amplifier U12, p-type metal-oxide-semiconductor U9, N-type triode Q1；The in-phase input end of the operational amplifier U12 and bearing for handheld terminal
Electrode is connected, output end is connected with 17 pin of the MCU Logic control modules；The source electrode of the p-type metal-oxide-semiconductor U9 passes through 0 Europe electricity
Resistance is connected with the power management module, drain is connected with the positive electrode of handheld terminal；The base stage of the N-type triode Q1 and institute
2 pin for stating MCU Logic control modules are connected.
Specifically, the operational amplifier U12 in charge control module is used to detect in USB TYPE A interfaces two in real time
The state of signal wire, so that MCU Logic control modules 101 determine whether that USB device inserts in time according to its result detected,
When judging to have USB device insertion, the first USB switches U14 is then switched to closing shape by communication interface handover module 102 automatically
State, the 2nd USB switches U15 switch to opening, facilitate user that charging and read-write USB device can be achieved by charging base
In data.
On the basis of above-described embodiment, with reference to Fig. 8, the Ethernet detection module includes infrared sensor；It is described red
2 pin and 3 pin of outer sensor connect power management module；1 pin of the infrared sensor is grounded by resistance R2,4 pin pass through
Resistance R1 is grounded, while 11 pin of 4 pin of the infrared sensor also with the MCU Logic control modules are connected, for detecting
Whether RJ45 interfaces have the insertion of Ethernet crystal head.
Specifically, the infrared sensor in Ethernet detection module is used to detect whether RJ45 interfaces have Ethernet water in real time
Crystal-tipped inserts, so that the timely communication control interface switching module 102 of result that MCU Logic control modules 101 detect according to it enters
The corresponding operation of row.When having detected the insertion of Ethernet crystal head, communication interface handover module 102 is then automatically by the first USB
Switch U14 switches to closed mode, and the 2nd USB switches U15 switches to opening, and being conveniently used for can be real by charging base
Now charging and access to LAN.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
- A kind of 1. charging base of adaptive switching communication interface, it is characterised in that including：MCU Logic control modules, communication interface handover module, Micro USB interfaces, USB TYPE A interfaces and RJ45 interfaces；The MCU Logic control modules are connected with the communication interface handover module；The communication interface handover module and the Micro USB interfaces, the USB TYPE A interfaces and the RJ45 interfaces It is connected；The Micro USB interfaces, USB TYPE A interfaces and RJ45 interfaces are arranged on the back shroud of charging base.
- 2. charging base according to claim 1, it is characterised in that also include：Charge control module and Ethernet detection Module；The charge control module is connected with the MCU Logic control modules and the USB TYPE A interfaces, for examining in real time Survey the state of signal wire in the USB TYPE A interfaces；The Ethernet detection module is connected with the MCU Logic control modules and the RJ45 interfaces, for detecting institute in real time Whether state has crystal head insertion in RJ45 interfaces.
- 3. charging base according to claim 2, it is characterised in that also include：With the MCU Logic control modules, institute State communication interface handover module, the charge control module and the connected power management module of the Ethernet detection module； The power management module is used to provide power supply for whole charging base.
- 4. charging base according to claim 1, it is characterised in that also include：Include physical layer transceiver, the first crystalline substance Shake, the ethernet communication module of network transformer, EEPROM and the RJ45 interfaces；The upper strata communication interface of the physical layer transceiver is USB interface；First crystal oscillator is that the physical layer transceiver carries For clock signal；The EEPROM is used for the physical address for storing physical layer；The network transformation Device is used to the differential signal of physical layer transceiver output being changed into network transmission signal.
- 5. charging base according to claim 4, it is characterised in that also include：Include universal serial bus concentrator, institute State Micro USB interfaces, the USB communication control modules of the USB TYPE A interfaces；The Micro USB interfaces are used for data communication between handheld terminal and PC, or, it is charging adapter to hand-held end End charging provides interface；The USB TYPE A interfaces are used to connect USB slave units；The universal serial bus concentrator is used for connection is hand-held One USB interface of terminal expands to multiple USB interfaces.
- 6. charging base according to claim 5, it is characterised in that the power management module includes connector and low pressure Difference linear constant voltage regulator chip；The power input pin of the connector and the power management module and the low pressure difference linear voltage regulator chip it is defeated Enter end to be connected, for providing VCC5 power supplys；The output end of the low pressure difference linear voltage regulator chip and the physical layer transceiver, the universal serial bus concentrator And the power supply signal of the MCU Logic control modules is connected, for providing VCC3 power supplys.
- 7. charging base according to claim 6, it is characterised in that the MCU logic controls mould includes microcontroller U13；44 pin BOOT0 of the microcontroller are pulled down by resistance R67 and are grounded by resistance R63 drop-downs ground connection, 20 pin BOOT1； 7 pin NRST of the microcontroller are by socketing the output end of the low pressure difference linear voltage regulator chip on resistance R61；It is described micro- 4 pin OE1 of controller are connected with the first USB switches in the communication interface handover module, 21 pin OE2 of the microcontroller It is connected with the 2nd USB switches in communication interface handover module；The 12 pin DP+_De1 and 13 pin DM-_De1 of the microcontroller It is connected with the universal serial bus concentrator；The 40 pin RESET and 15 pin Hub_con of the microcontroller lead to described It is connected with serial bus concentrator；17 pin of the microcontroller connect with the Pad_current signals of the charge control module Connect；11 pin AD_Ethernet of the microcontroller are connected with the infrared sensor of the Ethernet detection module.
- 8. charging base according to claim 7, it is characterised in that the first USB of the communication interface handover module is opened Signal pins of the 4 pin D-_mini and 5 pin D+_mini closed with the Micro USB interfaces are connected；The communication interface handover module the 2nd USB switch 4 pin DM_D and 5 pin DM_P with the USB collection The USB host port of line device is connected；USBs of the 1 pin D+_PDA and 2 pin D-_PDA of the first USB switches and the 2nd USB switches with handheld terminal connects Mouth is connected.
- 9. charging base according to claim 7, it is characterised in that the charge control module is insured including self- recoverage Silk, operational amplifier, p-type metal-oxide-semiconductor, N-type triode Q1；The in-phase input end of the operational amplifier is connected with the negative electrode of handheld terminal, output end and the MCU logic controls 17 pin of module are connected；The source electrode of the p-type metal-oxide-semiconductor is connected with the power management module by 0 Europe resistance, drained with holding The positive electrode of terminal is connected；The base stage of the N-type triode Q1 is connected with 2 pin of the MCU Logic control modules.
- 10. charging base according to claim 7, it is characterised in that the Ethernet detection module includes infrared sensing Device；2 pin and 3 pin of the infrared sensor connect power management module；1 pin of the infrared sensor is connect by resistance R2 Ground, 4 pin are grounded by resistance R1, while 11 pin phases of 4 pin of the infrared sensor also with the MCU Logic control modules Even.
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| CN201710811231.4A CN107565632A (en) | 2017-09-11 | 2017-09-11 | A kind of charging base of adaptive switching communication interface |
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| CN201710811231.4A CN107565632A (en) | 2017-09-11 | 2017-09-11 | A kind of charging base of adaptive switching communication interface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114063506A (en) * | 2021-11-12 | 2022-02-18 | 罗森伯格技术有限公司 | Device for switching communication modes |
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