CN209388297U - A kind of expansion equipment and communicating circuit - Google Patents
A kind of expansion equipment and communicating circuit Download PDFInfo
- Publication number
- CN209388297U CN209388297U CN201920315809.1U CN201920315809U CN209388297U CN 209388297 U CN209388297 U CN 209388297U CN 201920315809 U CN201920315809 U CN 201920315809U CN 209388297 U CN209388297 U CN 209388297U
- Authority
- CN
- China
- Prior art keywords
- communication terminal
- enable end
- interface
- equipment
- expansion equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of expansion equipment and communicating circuit, expansion equipment includes first interface, second interface and functional circuit, first interface includes the first communication terminal, the first enable end and the second enable end, functional circuit is electrically connected with the first communication terminal, the signal of first enable end, which can control, to be connected or is turned off between the first communication terminal and functional circuit, second interface includes the second communication terminal and third enable end, second communication terminal is electrically connected with the first communication terminal one-to-one correspondence, the electrical connection corresponding with the second enable end of third enable end.Expansion equipment provided by the utility model solves the problems, such as to communicate the limitation of primary device port number between existing equipment and configuration is complicated, the expansion equipment may be implemented to be connected in series between main equipment, primary device port number does not limit, and is not necessarily to complex configurations.
Description
Technical field
The utility model embodiment is related to mechanics of communication more particularly to a kind of expansion equipment and communicating circuit.
Background technique
With the made rapid progress of science and technology, the function of master controller is stronger and stronger, adds expansion equipment energy for master controller
The utilization rate for enough improving main equipment, reduces equipment cost.
Communicating circuit between existing equipment has plug and play and bus mode, but existing plug and play extends
The port number that the limited amount of equipment access is provided in main equipment, not only increases the volume of main equipment, also takes up main equipment
Multiple hardware communications resources；Existing bus mode has only taken up one communication port resource of main equipment, but needs to extend in access
The messaging parameter of equipment and device address are configured before equipment, the process of configuration needs communicator to connect equipment, needs
The cooperation of upper computer software can make the extension of access although such mode distinguishes equipment by the software in communication protocol
Number of devices is largely promoted, but the configuration work before accessing is comparatively laborious, also cannot achieve plug and play.
The problem that the limitation of primary device port number and configuration complexity are communicated between existing equipment is urgently to be resolved.
Utility model content
The utility model provides a kind of expansion equipment and communicating circuit, to solve to communicate primary device between existing equipment
The problem of port number limitation and configuration complexity.
In a first aspect, the utility model embodiment provides a kind of expansion equipment, including first interface, second interface and function
It can circuit；
First interface includes the first communication terminal, the first enable end and the second enable end；Functional circuit and the first communication terminal electricity
Connection；The signal of first enable end, which can control, to be connected or is turned off between the first communication terminal and functional circuit；
Second interface includes the second communication terminal and third enable end；Second communication terminal is electrically connected with the first communication terminal one-to-one correspondence
It connects, the electrical connection corresponding with the second enable end of third enable end.
Further, the communication terminal of functional circuit is electrically connected with the first communication terminal；The control terminal of functional circuit makes with first
It can end electrical connection；The control terminal of functional circuit can control the first communication terminal and functional circuit according to the signal of the first enable end
It is connected or turns off between communication terminal.
Further, expansion equipment further includes selection switch；
Functional circuit is by selecting switch to be electrically connected with the first communication terminal；The control terminal electricity of first enable end and selection switch
Connection；Selection switch can will be connected or be turned off between the first communication terminal and functional circuit according to the signal of the first enable end.
Further, select switch for analog switch.
Further, first interface and second interface are RS485, RS232, USB, UART, SPI or I2C interface.
Further, the number of the first enable end is 1, and the number of second enable end is more than or equal to 1.
Second aspect, the utility model embodiment provide a kind of communicating circuit, comprising: main equipment and N number of first aspect mention
The expansion equipment arrived,
1st expansion equipment is electrically connected by first interface with main equipment；
The first interface of the K+1 expansion equipment is electrically connected with the second interface of k-th expansion equipment；Wherein, it second connects
After mouth is electrically connected with first interface, led between the first communication terminal on the second communication terminal in second interface and first interface
It is logical, third enable end in second interface on first interface the first enable end and the second enable end is corresponding is electrically connected,
In, 1≤K≤N-1.
Further, the first communication terminal of the 1st expansion equipment is electrically connected with the communication terminal of main equipment；
First enable end of the 1st expansion equipment is electrically connected with the first control signal output end of main equipment；1st expansion
The second enable end for opening up equipment is electrically connected with the second control signal output end of main equipment one-to-one correspondence；
First enable end of the K+1 expansion equipment is electrically connected with a third enable end of k-th expansion equipment, k-th
Other third enable ends of expansion equipment correspond with the second enable end of the K+1 expansion equipment and are electrically connected.
Expansion equipment provided by the utility model, including first interface, second interface and functional circuit, first interface include
First communication terminal, the first enable end and the second enable end, functional circuit are electrically connected with the first communication terminal, the signal of the first enable end
It can control and be connected or turn off between the first communication terminal and functional circuit, second interface includes that the second communication terminal and third are enabled
End, the second communication terminal are electrically connected with the first communication terminal one-to-one correspondence, the electrical connection corresponding with the second enable end of third enable end.This reality
It is electrically connected with the first interface of the expansion equipment of novel offer with functional circuit, signal is transmitted by the first communication terminal, by the
One enable end controls the on-off that signal path is transmitted between the first communication terminal and functional circuit, and first interface is electrically connected with second interface
It connects, is electrically connected by the first communication terminal with the corresponding ports of the second communication terminal, the quantity of the second enable end and third enable end is
It is multiple, the electrical connection corresponding with third enable end of the second enable end.Expansion equipment provided by the utility model solves existing set
The problem of the limitation of communication primary device port number and configuration complexity between standby, the expansion equipment may be implemented between main equipment
It is connected in series, primary device port number does not limit, and is not necessarily to complex configurations.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of expansion equipment provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of another expansion equipment provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of another expansion equipment provided by the embodiment of the utility model；
Fig. 4 is a kind of structural schematic diagram of communicating circuit provided by the embodiment of the utility model；
Fig. 5 is the structural schematic diagram of another communicating circuit provided by the embodiment of the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.
Fig. 1 is a kind of structural schematic diagram of expansion equipment provided by the embodiment of the utility model.Referring to Fig. 1, this is practical new
Type embodiment provides a kind of expansion equipment 100, including first interface 1, second interface 2 and functional circuit 3, first interface 1 include
First communication terminal 10, the first enable end 11 and the second enable end 12；Functional circuit 3 is electrically connected with the first communication terminal 10；First makes
The signal at energy end 11, which can control, to be connected or is turned off between the first communication terminal 10 and functional circuit 3；Second interface 2 includes the
Two communication terminals 20 and third enable end 21；Second communication terminal 20 is electrically connected with the first communication terminal 21 one-to-one correspondence, third enable end
21 electrical connections corresponding with the second enable end 11.
Specifically, the first interface 1 of expansion equipment 100 can be corresponded with external interface and is electrically connected, and external interface can
To be the interface of main equipment or the second interface 2 of other expansion equipments 100, the second interface 2 of expansion equipment 100 can be with
The first interface 1 of other expansion equipments 100 corresponds electrical connection.The first interface 1 and second interface 2 of expansion equipment 100 are right
Should be electrically connected, wherein the first communication terminal 10 of first interface 1 and the second communication terminal 20 of second interface 2 it is corresponding electrical connection, first
Communication terminal 10 and the second communication terminal 20 are any one identical communication interfaces, and the second enable end 12 is corresponding with third enable end 21
Electrical connection, the port number of third enable end 21 are generally higher than the port number of the second enable end 12.First communication terminal 1 and function
Can circuit 3 be electrically connected, the first enable end 11 is electrically connected with functional circuit 3, and the first enable end 11 can control functional circuit 3 and the
One communication terminal 10 communication or disconnect, such as can be set when the signal of the first enable end 11 be low level when, functional circuit 3 with
First communication terminal 10 is by communication connection, when the signal of the first enable end 11 is high level, functional circuit 3 and the first communication terminal 10
It will be switched off communication connection.The communication of the functional circuit 3 and the first communication terminal 10 of this expansion equipment is controlled by the first enable end 11,
Control method is simple, and without carrying out functional configuration in advance, communication is reliable, and error rate is low, improves the access quantity of equipment, equipment expands
The convenience and user friendly of exhibition.
The first interface of expansion equipment provided by the utility model is electrically connected with functional circuit, is transmitted by the first communication terminal
Signal, controls the on-off that signal path is transmitted between the first communication terminal and functional circuit by the first enable end, first interface with
Second interface electrical connection, is electrically connected by the first communication terminal with the corresponding ports of the second communication terminal, the second enable end makes with third
The quantity at energy end is multiple, the second enable end electrical connection corresponding with third enable end.Expansion equipment solution provided by the utility model
The problem of the limitation of primary device port number and configuration complexity is communicated between existing equipment of having determined, which may be implemented
It is connected in series between main equipment, primary device port number does not limit, and complicated without configuring.
Optionally, Fig. 2 is the structural schematic diagram of another expansion equipment provided by the embodiment of the utility model.Referring to fig. 2,
On the basis of the above embodiments, the communication terminal 31 of functional circuit 3 is electrically connected with the first communication terminal 10, the control of functional circuit 3
End 32 is electrically connected with the first enable end 11, and the control terminal 32 of functional circuit 3 can be according to the signal of the first enable end 11 control the
It is connected or turns off between one communication terminal 10 and the communication terminal 31 of functional circuit 3.
Specifically, the first communication terminal 10 including bus A, bus B and level reference GND, the communication terminal of functional circuit 3
31 also including bus A, bus B and level reference GND, the bus A of the communication terminal 31 of functional circuit 3 and the first communication terminal 10
Bus A electrical connection, the bus B of the communication terminal 31 of functional circuit 3 is electrically connected with the bus B of the first communication terminal 10, functional circuit 3
Communication terminal 31 level reference GND with the level reference of the first communication terminal 10 GND is electrically connected.The control of functional circuit 3
End 32 is connect with the first enable end 11, can be set when the first enable end 11 is low level, functional circuit 3 is enabled according to first
First communication terminal of low level signal control 10 and bus A, bus B and the level of the communication terminal 31 of functional circuit 3 at end 11 are joined
The corresponding conducting of ground GND is examined, realizes the communication terminal 31 of functional circuit 3 and the first communication terminal 10, when the first enable end 11 is high level
When, functional circuit 3 controls the communication terminal 31 of the first communication terminal 10 and functional circuit 3 according to the high level signal of the first enable end 11
Bus A, bus B and level reference GND is corresponding disconnects.
Fig. 3 is the structural schematic diagram of another expansion equipment provided by the embodiment of the utility model.Referring to Fig. 3, above-mentioned
On the basis of embodiment, expansion equipment 100 provided by the embodiment of the utility model can also include selection switch 4.Functional circuit 3
It is electrically connected by selection switch 4 with the first communication terminal 10, the first enable end 11 is electrically connected with the control terminal 41 of selection switch 4, is selected
Selecting switch 4 can will be connected or be turned off between first communication terminal 10 and functional circuit 3 according to the signal of the first enable end 11.
Specifically, selection switch 4 includes Switch main body and control terminal 41, the switch that functional circuit 3 passes through selection switch 4
Ontology is electrically connected with the first communication terminal 10, selects the Switch main body closure of switch 4, and functional circuit 3 and the first communication terminal 10 communicate
Connection selects the Switch main body of switch 4 to disconnect, and functional circuit 3 and the communication of the first communication terminal 10 disconnect, and selects the control of switch 4
End 41 according to the Switch main body of the control signal control selections switch 4 received for being turned on or off.When the first enable end 11
Level change after, communication selected signal is led by the Switch main body of 41 control selections switch 4 of control terminal of selection switch 4
Logical or shutdown, to be communicated between control function circuit 3 and the first communication terminal 10, the level change of the first enable end 11 can
High level is become from low level with the level for including the first enable end 11, or low level is become from high level.
Optionally, selecting switch 4 can be analog switch.
Optionally, in conjunction with Fig. 1 to Fig. 3, first interface 1 and second interface 2 are RS485, RS232, USB, UART, SPI
Or I2C interface.
Specifically, first interface 1 and second interface 2 are identical, first interface 1 and second interface 2 can be RS485,
RS232, USB, UART, SPI or I2C interface or a kind of any other communication interface.
Optionally, the number of the first enable end 11 is 1, and the number of the second enable end 12 is more than or equal to 1.
Specifically, the first enable end 11 is electrically connected or selects the control terminal of switch 4 to be electrically connected with the control terminal of functional circuit 3
It connects, for choosing current expanding unit 100, therefore quantity is only one.Second enable end 12 is electrically connected with third enable end 21
Connect, for accessing other expanding units 100, therefore, the quantity of the second enable end 12 and third enable end 21 can be it is multiple,
It can be arranged according to demand.
The utility model embodiment provides a kind of communicating circuit.Fig. 4 is a kind of communication provided by the embodiment of the utility model
The structural schematic diagram of circuit.Referring to fig. 4, communicating circuit 300 provided by the embodiment of the utility model, including main equipment 200 and N number of
The expansion equipment 100 that above-mentioned any embodiment is mentioned.1st expansion equipment 100 is electrically connected by first interface 1 with main equipment 200
It connects, the first interface 1 of the K+1 expansion equipment 100 is electrically connected with the second interface 2 of k-th expansion equipment 100, wherein the
After two interfaces 2 are electrically connected with first interface 1, the second communication terminal 20 in second interface 2 and first on first interface 1 are logical
News are connected between end 10, the third enable end 21 in second interface 2 and the first enable end 11 and second on first interface 1
The corresponding electrical connection in enable end 12, wherein 1≤K≤N-1.
Specifically, connected between main equipment 200 and expansion equipment 100 by corresponding between first interface 1 and second interface 2
It connects, is formed and the concatenated communicating circuit of main equipment 200.When the level of the first enable end 11 of a certain expansion equipment 100 changes
After change, main equipment 200 chooses the expansion equipment 100 to be communicated.Each expansion equipment 100 is enabled do not use second
The pin at end 12 translates forward one and is connected on 100 first interface 1 of next stage expansion equipment, each expansion equipment in sequential series
100, so that the communication interface for reaching each expansion equipment 100 is the same, no matter 100 grades of expansion equipment which grade be associated in, all only
Need to judge the first enable end 11 of expansion equipment 100 determine main equipment 200 whether with this expansion equipment 100 communicate.
When main equipment 200 needs and the expansion equipment 100 of which grade is communicated, can be set only need main equipment 200 is corresponding
The level of first enable end 11 of expansion equipment 100 drags down, and it is high level that default conditions, which can be set, and low level is effective, corresponding
That expansion equipment 100 pass through and judge the level signal of the first enable end 11, come judge main equipment 200 whether be and this extension
Equipment 100 communicates.It should be noted that it is low level that default conditions, which can be set, the effective situation of high level is not appointed herein
What is limited.
Optionally, with continued reference to Fig. 4, on the basis of the above embodiments, the first communication terminal of the 1st expansion equipment 100
10 are electrically connected with the communication terminal 201 of main equipment 200, and the of the first enable end 11 of the 1st expansion equipment 100 and main equipment 200
The electrical connection of one control signal output 202, the second enable end 12 of the 1st expansion equipment 100 and the second control of main equipment 200
Signal output end 203 processed corresponds electrical connection, and the first enable end 11 and the k-th extension of the K+1 expansion equipment 100 are set
A standby 100 third enable end 21 is electrically connected, other third enable ends 21 of k-th expansion equipment 100 and the K+1 extension
Second enable end 12 of equipment 100 corresponds electrical connection.
Specifically, main equipment 200 includes main interface, and main interface includes communication terminal 201, first control signal output end
202 and second control signal output end 203.The first control signal output end 202 of main equipment 200 and the 1st expansion equipment 100
The first enable end 11 electrical connection, the second of the second control signal output end 203 of main equipment 200 and the 1st expansion equipment 100
Enable end 12 be electrically connected, and the third enable end 21 Jing Guo the 1st expansion equipment 100 respectively with k-th expansion equipment 100 first
Enable end 11 is electrically connected, and main equipment 200 is defeated by the first control signal output end 202 and second control signal of control main interface
Different expansion equipments 100 is chosen in the level signal of outlet 203, control.
Concrete operating principle are as follows: expansion equipment 100 does not need to do any configuration, and each expansion equipment 100 1
Sample, no matter expansion equipment 100 connect in which grade can normal use, main equipment 200 needs and the extension of which grade
When equipment 100 is communicated, it can be in the software of the functional circuit 3 of expansion equipment 100 according to the electricity of the first enable end 11
Flat signal intensity judges whether main equipment 200 communicates with this expansion equipment 100.Can be set only need main equipment 200 is right
When the level signal of the first control signal output end 202 or second control signal output end 203 answered changes, Ke Yishe
Setting default conditions is high level, and low level is effective, that corresponding expansion equipment 100 passes through the level for judging the first enable end 11
Signal, to judge whether main equipment 200 is to communicate with this expansion equipment 100.It should be noted that default conditions can be set being
Low level, the effective situation of high level, is not limited in any way herein.
Specifically, Fig. 5 is the structural schematic diagram of another communicating circuit provided by the embodiment of the utility model.Referring to Fig. 5,
Fig. 5 illustratively draws the expansion equipment 100 in communicating circuit and includes the case where selecting switch 4.
Specifically, it when main equipment 200 needs to be communicated with the expansion equipment 100 of which grade, can be in expansion equipment
100 selection switch 4 according to the level signal of the first enable end 11 change judge main equipment 200 whether with this expansion equipment
100 communications.When selecting the control terminal of switch 4 to get the level signal of main equipment 200 and the communication of this expansion equipment 100, function
Energy circuit 3 is electrically connected by the Switch main body of selection switch 4 with the first communication terminal 10, and the Switch main body closure of switch 4, function are selected
Can circuit 3 and 10 communication connection of the first communication terminal, communication line is shorted by way of analog switch, make main device 200 and
This expansion equipment 100 communicates；When the control terminal of selection switch 4 gets the electricity that main equipment 200 is not communicated with this expansion equipment 100
When ordinary mail, functional circuit 3 is electrically connected by the Switch main body of selection switch 4 with the first communication terminal 10, selects the switch of switch 4
Ontology disconnects, and functional circuit 3 and the communication of the first communication terminal 10 disconnect, and communicates main device 200 with this expansion equipment 100.
The second enable end 12 that do not use is translate forward one by each expansion equipment 100, is connected to next stage expansion
On the first interface 1 for opening up equipment 100, so that the communication interface for reaching each expansion equipment 100 is the same, no matter expansion equipment
Which grade is 100 grades be associated in, and needs to judge the first enable end 11 only all to determine whether main equipment 200 is logical with this expansion equipment 100
Letter.
Communicating circuit provided by the utility model, the expansion equipment mentioned including main equipment and N number of above-mentioned any embodiment.
Communicating circuit provided by the utility model realizes the communication of the cascaded series connection between main equipment and expansion equipment, not primary device end
The limitation of mouth quantity, while realizing plug and play, the utilization rate of main equipment is improved, the cost of communicating circuit is reduced.This reality
Communicating circuit with novel offer includes the expansion equipment that above-mentioned any embodiment provides, and belongs to same inventive concept, is had upper
The beneficial effect for the expansion equipment that embodiment is mentioned is stated, details are not described herein.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright
Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments
The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from
It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended
Scope of the claims determine.
Claims (8)
1. a kind of expansion equipment, which is characterized in that including first interface, second interface and functional circuit；
The first interface includes the first communication terminal, the first enable end and the second enable end；The functional circuit and described first
Communication terminal electrical connection；The signal of first enable end, which can control, to be connected or is closed between the first communication terminal and functional circuit
It is disconnected；
The second interface includes the second communication terminal and third enable end；Second communication terminal and first communication terminal are one by one
Corresponding electrical connection, third enable end electrical connection corresponding with second enable end.
2. expansion equipment according to claim 1, which is characterized in that
The communication terminal of the functional circuit is electrically connected with first communication terminal；The control terminal of the functional circuit and described first
Enable end electrical connection；The control terminal of the functional circuit can according to the signal of first enable end control the first communication terminal with
It is connected or turns off between the communication terminal of functional circuit.
3. expansion equipment according to claim 1, which is characterized in that further include selection switch；
The functional circuit is electrically connected by selection switch with first communication terminal；First enable end and the choosing
Select the control terminal electrical connection of switch；The selection switch can be according to the signal of first enable end by the first communication terminal and function
It can be connected or turn off between circuit.
4. expansion equipment according to claim 3, which is characterized in that
It is described to select switch for analog switch.
5. expansion equipment according to claim 1, which is characterized in that the first interface and the second interface are
RS485, RS232, USB, UART, SPI or I2C interface.
6. expansion equipment according to claim 1, which is characterized in that the number of first enable end is 1, described second
The number of enable end is more than or equal to 1.
7. a kind of communicating circuit characterized by comprising main equipment and any expansion equipment of N number of claim 1-5,
1st expansion equipment is electrically connected by the first interface with the main equipment；
The first interface of the K+1 expansion equipments is electrically connected with the second interface of expansion equipment described in k-th；Wherein, institute
It states after second interface is electrically connected with the first interface, on the second communication terminal and the first interface in the second interface
The first communication terminal between be connected, the first enable end on the third enable end in the second interface and the first interface with
And the second corresponding electrical connection in enable end, wherein 1≤K≤N-1.
8. communicating circuit according to claim 7, which is characterized in that
First communication terminal of the 1st expansion equipment is electrically connected with the communication terminal of the main equipment；
First enable end of the 1st expansion equipment is electrically connected with the first control signal output end of the main equipment；1st
Second enable end of the expansion equipment is electrically connected with the second control signal output end of main equipment one-to-one correspondence；
K+1 the first enable ends of the expansion equipment are electrically connected with a third enable end of expansion equipment described in k-th, the
Other third enable ends of the K expansion equipments and the second enable end of the K+1 expansion equipments correspond and are electrically connected
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920315809.1U CN209388297U (en) | 2019-03-13 | 2019-03-13 | A kind of expansion equipment and communicating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920315809.1U CN209388297U (en) | 2019-03-13 | 2019-03-13 | A kind of expansion equipment and communicating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209388297U true CN209388297U (en) | 2019-09-13 |
Family
ID=67853007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920315809.1U Active CN209388297U (en) | 2019-03-13 | 2019-03-13 | A kind of expansion equipment and communicating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209388297U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332881A (en) * | 2020-10-19 | 2021-02-05 | 深圳市信锐网科技术有限公司 | Enabling circuit and communication device |
-
2019
- 2019-03-13 CN CN201920315809.1U patent/CN209388297U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332881A (en) * | 2020-10-19 | 2021-02-05 | 深圳市信锐网科技术有限公司 | Enabling circuit and communication device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102183928B (en) | Method, device and intelligent household appliance controller for controlling running mode of household appliance | |
| CN101404001B (en) | Serial port signal and USB signal compatible control circuit board and communication data cable | |
| CN102882077B (en) | A kind of method and smart jack of controlling consumer power switch | |
| CN105896655B (en) | Method for charging for electronic equipment and electronic equipment | |
| CN108459982A (en) | The switching method of communication equipment and USB and serial ports | |
| CN105762883B (en) | Method and electronic equipment for charging for electronic equipment | |
| CN103853689A (en) | Device and method of automatic switchover of USB (Universal Serial Bus) and four-line serial port UART (Universal Asynchronous Receiver Transmitter) | |
| CN204166372U (en) | A kind of intelligent home control system | |
| CN209388297U (en) | A kind of expansion equipment and communicating circuit | |
| CN105515787A (en) | Network port and Ethernet device | |
| CN106793314A (en) | Lamp light control system based on POE and infrared induction technology | |
| CN204946336U (en) | The metering communication module of intelligent electric energy meter | |
| CN105335126B (en) | A kind of mosaic screen | |
| CN103268300B (en) | A kind of serial interface circuit of serial communication management server | |
| CN208984977U (en) | A kind of novel remote switch amount control device | |
| CN207588554U (en) | Power supply cabinet | |
| CN202720638U (en) | Serial conversion circuit | |
| CN205015883U (en) | Multichannel serial ports debugging device | |
| CN107908584B (en) | Multi-path RS-485 communication network | |
| CN107272524B (en) | Smart machine control device and system | |
| CN205846767U (en) | Charger | |
| CN109379108A (en) | A kind of electric appliance based on power line carrier, PLC, electric control system | |
| CN204360371U (en) | A kind of USBKey | |
| CN203311230U (en) | Household intelligent control system | |
| CN105743180B (en) | Method and electronic equipment for charging for electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |