CN206023763U - Based on the control circuit that single serial ports realizes multi-serial communication - Google Patents
Based on the control circuit that single serial ports realizes multi-serial communication Download PDFInfo
- Publication number
- CN206023763U CN206023763U CN201620831402.0U CN201620831402U CN206023763U CN 206023763 U CN206023763 U CN 206023763U CN 201620831402 U CN201620831402 U CN 201620831402U CN 206023763 U CN206023763 U CN 206023763U
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- China
- Prior art keywords
- switch
- serial communication
- electrically connected
- control circuit
- audion
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- Expired - Fee Related
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Abstract
This utility model discloses a kind of control circuit for realizing multi-serial communication based on single serial ports, which is used cooperatively with single serial communication interface, the serial communication interface includes signal receiving end, signal sending end and some I/O ports, the control circuit includes at least two sub-control units, each described sub-control unit includes resistance, audion, diode and relay, the relay includes coil, first switch and second switch, the first end of the resistance is electrically connected with serial communication interface I/O port, second end of the resistance is electrically connected with the base stage of the audion, the grounded emitter of the audion, the colelctor electrode of the audion is electrically connected with the anode of the diode, the negative electrode of the diode is connected with power supply, the diode is connected with the coils from parallel connection of coils.Compared with prior art, this utility model can once with multiple equipment communications to be controlled, communication efficiency is high.
Description
Technical field
This utility model is related to communication field, more particularly to a kind of control electricity for realizing multi-serial communication based on single serial ports
Road.
Background technology
On a lot of control terminals (such as PAD, palm PC, notebook computer etc.), a serial communication is generally provided only with
Interface, when being communicated using the serial communication interface, can only realize that One-to-one communication, i.e. control terminal once can only be with one
Individual equipment communication to be controlled, it is impossible to which with multiple equipment communications to be controlled, this communication mode is very inconvenient, and communication efficiency is low, because
This, it is necessary to provide a kind of communication mode to solve the above problems.
Utility model content
The purpose of this utility model be to provide a kind of can be once with multiple equipment communications to be controlled based on single serial ports
Realize the control circuit of multi-serial communication.
To achieve these goals, the technical scheme adopted by this utility model is as follows：
A kind of control circuit for realizing multi-serial communication based on single serial ports, which is used cooperatively with single serial communication interface,
The serial communication interface includes that signal receiving end, signal sending end and some I/O ports, the control circuit include at least two
Individual sub-control unit, each described sub-control unit include resistance, audion, diode and relay, the relay
Including coil, first switch and second switch, the first end of the resistance is electrically connected with serial communication interface I/O port
Connect, the second end of the resistance is electrically connected with the base stage of the audion, the grounded emitter of the audion, three pole
The anode of the colelctor electrode of pipe and the diode is electrically connected with, and the negative electrode of the diode is connected with power supply, the diode and
The coils from parallel connection of coils connection.
Preferably, the first end of the first switch is electrically connected with the signal transmitting terminal of the serial communication interface；Institute
The second end for stating first switch is electrically connected with control equipment to be controlled；Second end of the first switch and the control equipment to be controlled
Signal receiving end is electrically connected with.
Preferably, the first end of the second switch is electrically connected with the signal receiving end of the serial communication interface, institute
The second end for stating first switch is electrically connected with control equipment to be controlled；Second end of the first switch and the control equipment to be controlled
Signal transmitting terminal is electrically connected with.
Preferably, the power supply is 5V unidirectional currents.
Preferably, the first switch and second switch are dynamic circuit connector switch.
Compared with prior art, this utility model realizes the beneficial effect of the control circuit of multi-serial communication based on single serial ports
Fruit is：This utility model can once with multiple equipment communications to be controlled, communication efficiency is high.
Description of the drawings
Fig. 1 is the circuit theory of one embodiment of control circuit that this utility model realizes multi-serial communication based on single serial ports
Figure.
In figure, each labelling is as follows：1st, sub-control unit；R, resistance；Q, audion；D, diode；K, coil；K1, first open
Close；K2, second switch.
Specific embodiment
This utility model is further described below with reference to specific embodiment.
Refer to shown in Fig. 1, this utility model provides a kind of control circuit for realizing multi-serial communication based on single serial ports, its
Use cooperatively with single serial communication interface, the serial communication interface includes signal receiving end, signal sending end and some I/O
Port, the control circuit include at least two sub-control units 1, each described sub-control unit 1 include resistance R, three
Pole pipe Q, diode D and relay, the relay include coil K, first switch K1 and second switch K2, the resistance R's
One I/O port of first end and serial communication interface is electrically connected with, the base of second end of the resistance R and the audion Q
Pole is electrically connected with, and the grounded emitter of the audion Q, the colelctor electrode of the audion Q are electrical with the anode of the diode D
Connection, the negative electrode of the diode D are connected with power supply, and the diode D is connected in parallel with the coil K.
In this utility model, the quantity of the sub-control unit 1 is preferably 3-7, in the present embodiment, such as Fig. 1 institutes
Show, the quantity of the sub-control unit 1 is 3.In concrete application, the quantity of the sub-control unit 1 can be according to reality
Need the quantity adjustment of the control equipment to be controlled of control.
Wherein, the first end of first switch K1 is electrically connected with the signal transmitting terminal of the serial communication interface, institute
The signal receiving end at the second end and the control equipment to be controlled of stating first switch K1 is electrically connected with.I.e. when first switch K1 connects
When logical, control equipment to be controlled receives the signal that control terminal sends by serial communication interface.
The first end of the second switch K2 is electrically connected with the signal receiving end of the serial communication interface, and described first
Second end of switch K1 is electrically connected with the signal transmitting terminal of the control equipment to be controlled.I.e. when the second switch K2 is connected,
Control terminal receives the signal that control equipment to be controlled sends by serial communication interface.
In the present embodiment, the power supply is 5V unidirectional currents.First switch K1 and second switch K2 are dynamic circuit connector and open
Close, i.e., when the coil K is not powered on, first switch K1 and second switch K2 are off-state, when the coil K leads to
When electric, first switch K1 and second switch K2 are closure state.
Operation principle of the present utility model is：It is described to control whether the sub-control unit 1 is powered by the coil K
First switch K1 and second switch K2 are simultaneously switched off or are closed at, so as to control the control equipment to be controlled and control terminal it
Between receiving and transmitting signal.When I/O ports export high level, the audion Q conductings, the coil K are powered；When I/O ports export
During low level, the audion Q is not turned on, the coil K power-off.The control terminal is by controlling all I/O ports
High level circulate, realize successively from different device talks to be controlled, so as to reach the mesh with multiple equipment communications to be controlled
's.
Schematically this utility model and embodiments thereof are described above, the description does not have restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So, if this area
Those of ordinary skill enlightened by which, in the case where objective is created without departing from this utility model, design without creative
The frame mode similar to the technical scheme and embodiment, all should belong to protection domain of the present utility model.
Claims (5)
1. a kind of control circuit for realizing multi-serial communication based on single serial ports, which is used cooperatively with single serial communication interface, institute
Stating serial communication interface includes signal receiving end, signal sending end and some I/O ports, it is characterised in that：The control circuit
Including at least two sub-control units, each described sub-control unit includes resistance, audion, diode and relay,
The relay includes coil, first switch and second switch, the first end of the resistance and serial communication interface I/O
Port is electrically connected with, and the second end of the resistance is electrically connected with the base stage of the audion, and the emitter stage of the audion connects
Ground, the colelctor electrode of the audion are electrically connected with the anode of the diode, and the negative electrode of the diode is connected with power supply, institute
State diode to be connected with the coils from parallel connection of coils.
2. the control circuit of multi-serial communication is realized based on single serial ports as claimed in claim 1, it is characterised in that：Described first
The first end of switch is electrically connected with the signal transmitting terminal of the serial communication interface；Second end of the first switch electrically connects
It is connected to control equipment to be controlled；Second end of the first switch is electrically connected with the signal receiving end of the control equipment to be controlled.
3. the control circuit of multi-serial communication is realized based on single serial ports as claimed in claim 1, it is characterised in that：Described second
The first end of switch is electrically connected with the signal receiving end of the serial communication interface, and the second end of the first switch electrically connects
It is connected to control equipment to be controlled；Second end of the first switch is electrically connected with the signal transmitting terminal of the control equipment to be controlled.
4. the control circuit of multi-serial communication is realized based on single serial ports as claimed in claim 1, it is characterised in that：The power supply
For 5V unidirectional currents.
5. the control circuit of multi-serial communication is realized based on single serial ports as claimed in claim 1, it is characterised in that：Described first
Switch and second switch are dynamic circuit connector switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620831402.0U CN206023763U (en) | 2016-08-03 | 2016-08-03 | Based on the control circuit that single serial ports realizes multi-serial communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620831402.0U CN206023763U (en) | 2016-08-03 | 2016-08-03 | Based on the control circuit that single serial ports realizes multi-serial communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206023763U true CN206023763U (en) | 2017-03-15 |
Family
ID=58246033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620831402.0U Expired - Fee Related CN206023763U (en) | 2016-08-03 | 2016-08-03 | Based on the control circuit that single serial ports realizes multi-serial communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206023763U (en) |
-
2016
- 2016-08-03 CN CN201620831402.0U patent/CN206023763U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20200803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |