CN109062845A - multi-terminal control method and system - Google Patents
multi-terminal control method and system Download PDFInfo
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- CN109062845A CN109062845A CN201810837472.0A CN201810837472A CN109062845A CN 109062845 A CN109062845 A CN 109062845A CN 201810837472 A CN201810837472 A CN 201810837472A CN 109062845 A CN109062845 A CN 109062845A
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- logic device
- module
- programmable logic
- terminal
- handshake
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
- G06F13/4286—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus using a handshaking protocol, e.g. RS232C link
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0002—Serial port, e.g. RS232C
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Programmable Controllers (AREA)
Abstract
The invention discloses multi-terminal control method and systems, are related to field of intelligent control.The system includes: controller, programmable logic device and at least two terminals, wherein control instruction is sent to programmable logic device for generating control instruction depending on the user's operation by controller；Programmable logic device is for being sent to each terminal for control instruction after being shaken hands with each terminal.A kind of multi-terminal control method and system provided by the invention realize a controller while controlling multiple terminals, save the usage quantity and use space of controller, and can be convenient for the operation of user.
Description
Technical field
The present invention relates to field of intelligent control more particularly to multi-terminal control methods and system.
Background technique
In fields such as military and Industry Controls, realize that computer man-machine interacting controls the trace ball that RS232 serial ports can be selected
Realize the function of mouse, such product has the characteristics that waterproof and dustproof, anti-vibration effect be good, high reliablity, is more suitable for disliking
Bad environment.But in the occasion of some narrow spaces, such as vehicle-mounted indication control board environment, a usual user need respective operations more
Platform computer can occupy valuable interior space, and the person of being not convenient to use if being equipped with a trace ball to each computer
Use.
Summary of the invention
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide a kind of multi-terminal control method and
A kind of multiple-terminal control system.
The technical scheme to solve the above technical problems is that
A kind of multiple-terminal control system, comprising: controller, programmable logic device and at least two terminals, wherein the control
The control instruction is sent to the programmable logic device for generating control instruction depending on the user's operation by device processed；Institute
Programmable logic device is stated for after being shaken hands with each terminal, the control instruction to be sent to each terminal.
The beneficial effects of the present invention are: a kind of multiple-terminal control system provided by the invention, by programmable logic device with
Multiple terminals to be controlled carry out handshake authentication, and programmable logic device and multiple terminals is made to set up communication connection, then again will
The control instruction that controller issues is transmitted to multiple terminals, realizes a controller while controlling multiple terminals, saves control
The usage quantity and use space of device processed, and the operation of user can be convenient for.
The another technical solution that the present invention solves above-mentioned technical problem is as follows:
A kind of multi-terminal control method, comprising:
Programmable logic device is shaken hands at least two terminals；
Controller generates control instruction depending on the user's operation, and the control instruction is sent to the programmable logic
Device；
The control instruction is sent to each terminal by the programmable logic device.
The advantages of additional aspect of the invention, will be set forth in part in the description, and will partially become from the following description
It obtains obviously, or practice is recognized through the invention.
Detailed description of the invention
Fig. 1 is a kind of structural framing figure that the embodiment of multiple-terminal control system provides of the present invention；
Fig. 2 is a kind of structural framing for the programmable logic device that the other embodiments of multiple-terminal control system provide of the present invention
Figure；
Fig. 3 is a kind of structural framing figure that the other embodiments of multiple-terminal control system provide of the present invention；
Fig. 4 is a kind of flow diagram that the embodiment of multi-terminal control method provides of the present invention.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and illustrated embodiment is served only for explaining the present invention,
It is not intended to limit the scope of the present invention.
Fig. 1 is a kind of structural framing figure that the embodiment of multiple-terminal control system provides of the present invention, and Fig. 2 is that the present invention is a kind of
The structural framing figure for the programmable logic device that the other embodiments of multiple-terminal control system provide, below with reference to Fig. 1 and Fig. 2 to this
Application is illustrated.
As shown in Figure 1, the multiple-terminal control system includes: controller 1, programmable logic device 2 and at least two terminals 3,
Wherein, controller 1 for generating control instruction depending on the user's operation, and control instruction is sent to programmable logic device 2；It can
Programmed logic device 2 is for being sent to each terminal 3 for control instruction after being shaken hands with each terminal 3.
It should be noted that controller 1 can be capable of the equipment of controlling terminal 3, terminal for keyboard, mouse or trackball etc.
3 can be the equipment that computer, tablet computer, mobile phone etc. can be controlled by controller 1, programmable logic device 2 can according to
Specified function is realized in the programming at family.
By taking mouse as an example, when user's operation mouse is mobile, the displacement data comprising displacement information can be generated, and
Operation datas of clicking that the left button that mouse generates is clicked, right button is clicked etc., these displacement datas and operation data be exactly mouse according to
The control instruction that the operation of user generates, can be used to controlling terminal 3.
Usually, each terminal 3 requires to carry out two-way certification and connection with a controller 1, establishes communication
After link, be just able to achieve the one-to-one control of controller 1 Yu terminal 3, and in the application, first by programmable logic device 2 with
Multiple terminals 3 are authenticated and are connected, and so that multiple terminals 3 is first established connection with programmable logic device 2, then again by controller 1
Control instruction be transmitted to multiple terminals 3, be achieved that the one-to-many control of controller 1 Yu terminal 3.
It should be understood that if connected between controller 1, programmable logic device 2 and terminal 3 by wired mode, also
It needs to include the equipment such as electrical level transferring chip and interface chip, for example, when controller 1 is trace ball, the work electricity of trace ball
It puts down as 5V, and the operation level of programmable logic device 2 is generally 3.3V, then just needing that level conversion mould is added between
Block, so that the two is attached, and it also requires interface chip is added in the side close to trace ball, to connect trace ball.
Electrical level transferring chip and interface chip can also be connected between programmable logic device 2 and terminal 3 in turn, wherein
Electrical level transferring chip is used to convert the level of the signal transmitted between programmable logic device 2 and terminal 3, and interface chip is for connecing
Enter multiple 3 equipment of terminal.
It is alternatively possible to which the function of interface chip and electrical level transferring chip is integrated into programmable logic device 2.
It should be understood that being controlled if wirelessly connected between controller 1, programmable logic device 2 and terminal 3
Device 1, programmable logic device 2 and terminal 3 processed require respectively comprising wireless receiving end and transmit wirelessly end, programmable logic device 2
Handshake procedure between terminal 3 is realized by wireless receiving end and wireless transmission end, between programmable logic device 2 and terminal 3
It first sets up wireless receiving end and transmits wirelessly the communication channel between end, then shaken hands by communication channel.It is programmable to patrol
The forwarding for collecting the control instruction that device 2 issues controller 1 is realized also by wireless receiving end and wireless transmission end.
3 control system of a kind of multiple terminals provided in this embodiment, passes through programmable logic device 2 and multiple terminals to be controlled
3 carry out handshake authentication, so that programmable logic device 2 and multiple terminals 3 is set up communication connection, then again issue controller 1
Control instruction is transmitted to multiple terminals 3, realizes a controller 1 while controlling multiple terminals 3, saves making for controller 1
With quantity and use space, and the operation of user can be convenient for.
As shown in Fig. 2, a kind of functional module connection structure of possible programmable logic device 2 is given, below with reference to figure
2, some possible embodiments are illustrated.
Optionally, in some embodiments, programmable logic device 2 may include: handshake module 23 and forwarding module 24, hold
Fingerprint block 23 with each terminal 3 for shaking hands；Forwarding module 24 in handshake module 23 and each terminal 3 for shaking hands
Afterwards, the control instruction that controller 1 is sent is obtained, and control instruction is sent to each terminal 3.
Optionally, in some embodiments, programmable logic device 2 can also include: filter module 22, and filter module 22 is used
Handshake in the handshake procedure to handshake module 23 and each terminal 3 carries out eliminating shake and flash removed is gone to handle.
It by being filtered to the handshake in handshake procedure, can be improved the quality of handshake, promoted and shaken hands
Success rate.
It optionally, in some embodiments, can also include: crystal oscillator 4, crystal oscillator 4 is for generating clock
Signal, and it is sent respectively to handshake module 23 and filter module 22, keep handshake module 23 synchronous with the holding of filter module 22.
Optionally, in some embodiments, programmable logic device 2 can also include: frequency division module 21, and frequency division module 21 is used
After the clock signal for generating crystal oscillator 4 carries out scaling down processing, it is sent to handshake module 23.
For example, crystal oscillator 4 produces the clock signal of 40MHz, after being sent to frequency division module 21, produces and meet
The clock of 1200 baud rates is sent to handshake module 23.
Optionally, in some embodiments, programmable logic device 2 can also include: enabled module 25, enable module 25 and use
It powers in controller 1.
Optionally, in some embodiments, controller 1 can be trace ball or mouse.
Optionally, in some embodiments, programmable logic device 2 can be CPLD programmable logic device 2.
It is appreciated that optionally, in some embodiments, may include as tied some or all of in the various embodiments described above
Structure, module.
As shown in figure 3, for a kind of structural framing figure that the other embodiments of multiple-terminal control system provide of the present invention, below
By taking a trace ball controls 3 computers simultaneously by programmable logic device as an example, the application is further described.
The system includes: serial ports trace ball 10,20,3 computers 30 of CPLD programmable logic device and crystal oscillator 4,
The system further include: RS232 interface chip 40, electrical level transferring chip 50, electrical level transferring chip 60 and RS232 interface chip 70,
Wherein, CPLD programmable logic device 20 includes: frequency division module 21, filter module 22, handshake module 23, enabled module 25, forwarding
Module 24.
Wherein, handshake module 23 can be UART handshake module 23, the flow direction of the arrows show data in figure.
Serial ports trace ball 10 and the two-way interconnection of RS232 interface chip 40；RS232 interface chip 40 and electrical level transferring chip 50
Two-way interconnection；The input terminal of electrical level transferring chip 50 is connect with the output end of enabled module 25, the output of electrical level transferring chip 50
End is connect with the input terminal of forwarding module 24.
The output end of crystal oscillator 4 is connect with the input terminal of the input terminal of frequency division module 21 and filter module 22 respectively.
Electrical level transferring chip 60 and the two-way interconnection of filter module 22, the input terminal and forwarding module 24 of electrical level transferring chip 60
Output end connection；Electrical level transferring chip 60 and the two-way interconnection of RS232 interface chip 70；RS232 interface chip 70 respectively with 3
The two-way interconnection of the com port of computer 30.
In CPLD programmable logic device 20, the input terminal of frequency division module 21 is connect with the output end of crystal oscillator 4；Point
The output end of frequency module 21 is connect with the input terminal of handshake module 23；Handshake module 23 and the two-way interconnection of filter module 22；Filtering
Module 22 and the two-way interconnection of electrical level transferring chip 60；The output end of forwarding module 24 and the input terminal of electrical level transferring chip 60 connect
It connects, the input terminal of forwarding module 24 is connect with the output end of electrical level transferring chip 50；The output end and level of enabled module 25 turn
Change the input terminal connection of chip 50.
After start-up operation, enabled module 25 sets logical one, exports to electrical level transferring chip 50；Electrical level transferring chip 50 will
The logical one of 3.3V is converted to 5V, exports to RS232 interface chip 40；RS232 interface chip 40 receives 5V, exports to serial ports
Trace ball 10, for powering to trace ball.
Crystal oscillator 4 exports 40MHz clock to frequency division module 21, frequency division module 21 generate meet 1200 baud rates when
Clock is exported to handshake module 23；After 3 computers 30 power on, the RTS signal of com port is respectively set into logical zero, generates RS232
Level signal is exported to RS232 interface chip 70, currently whether accesses serial equipment for inquiring；RS232 interface chip 70 will
The RS232 level signal received is converted to the RTS signal of 5V, exports to electrical level transferring chip 60；Electrical level transferring chip 60 will
The RTS signal of 5V is converted to the RTS signal of 3.3V, exports to CPLD programmable logic device 20；Filter module 22 is by the RTS of 3.3V
Signal, which disappears, shrugs off burr, exports to handshake module 23；After handshake module 23 receives the RTS logical zero after shrugging off burr that disappears, press
According to 1200 baud rates, 7 data bit, 2 stop positions, no parity check UART format, output hexadecimal data " 0x4D " to filter
Wave module 22, filter module 22 export " 0x4D " to electrical level transferring chip 60, and electrical level transferring chip 60 turns " 0x4D " of 3.3V
It is changed to " 0x4D " of 5V, exports to RS232 interface chip 70；" 0x4D " of 5V is converted to RS232 electricity by RS232 interface chip 70
Flat " 0x4D " is exported respectively to 3 computers 30, and 3 computers 30 is made all " to take for " respectively having recognized serial ports track
Ball 10.
After user is operated using serial ports trace ball 10, the data such as coordinate, the left and right press key of RS232 level are produced
It is sent to RS232 interface chip 40；The data such as the coordinate of S232 level, left and right press key are converted to 5V by RS232 interface chip 40
The data such as coordinate, left and right press key；The data such as the coordinate of 5V, left and right press key are converted to the seat of 3.3V by electrical level transferring chip 50
The data such as mark, left and right press key are exported to forwarding module 24；Forwarding module 24 by the data such as the coordinate of 3.3V, left and right press key export to
Electrical level transferring chip 60；Electrical level transferring chip 60 data such as the coordinate of 3.3V, left and right press key are converted to 5V coordinate, left and right by
The data such as key are exported to RS232 interface chip 70；The coordinate of 5V, left and right press key are converted to RS232 electricity by RS232 interface chip 70
Flat coordinate, left and right press key are exported to 3 computers 30, to realize trace ball while control three computers.
In the present embodiment, using CPLD programmable logic device as core control and data processing device, and cooperate periphery
Electrical level transferring chip, RS232 interface chip etc. realize a trace ball while controlling three computers.Suitable for compact
It is controlled while in space to using a trace ball to multiple display and control terminals.
It optionally, in some embodiments, can also be by utilizing remaining hardware resource in CPLD programmable logic device
And increase and enclose electrical level transferring chip, RS232 interface chip realizes control while to computer more than three or more.
As shown in figure 4, for a kind of flow diagram that the embodiment of multi-terminal control method provides of the present invention, this method packet
It includes:
S1, programmable logic device are shaken hands at least two terminals；
S2, controller generates control instruction depending on the user's operation, and control instruction is sent to programmable logic device；
Control instruction is sent to each terminal by S3, programmable logic device.
Specifically, it can be shaken hands by the handshake module in programmable logic device at least two terminals.
Optionally, in some embodiments, programmable logic device is shaken hands at least two terminals, is specifically included:
Programmable logic device is shaken hands at least two terminals, and eliminate to the handshake in handshake procedure and be trembled
It moves and flash removed is gone to handle.
Specifically, the handshake in handshake procedure can be eliminated by the filter module in programmable logic device
It shakes and flash removed is gone to handle.
Optionally, in some embodiments, can also include:
Clock signal is generated by crystal oscillator, and is sent respectively to handshake module and filter module, makes handshake module
It is synchronous with filter module holding.
Optionally, in some embodiments, can also include:
After the clock signal that crystal oscillator is generated carries out scaling down processing, it is sent to handshake module.
Optionally, in some embodiments, can also include:
It powers to controller.
Optionally, in some embodiments, controller can be trace ball or mouse.
Optionally, in some embodiments, programmable logic device can be CPLD programmable logic device.
It should be noted that the explanation of step same as the previously described embodiments in the present embodiment, can refer to above-mentioned implementation
In example pair it should be noted that details are not described herein.
It should be noted that the present embodiment is embodiment of the method corresponding with above-mentioned each product embodiments, for this implementation
In example the explanation of each step and optional embodiment can with reference in above-mentioned each product embodiments pair it should be noted that no longer superfluous herein
It states.
It is appreciated that optionally, in some embodiments, may include as walked some or all of in the various embodiments described above
Suddenly.
Reader should be understood that in the description of this specification reference term " one embodiment ", " is shown " some embodiments "
The description of example ", " specific example " or " some examples " etc. mean specific features described in conjunction with this embodiment or example, structure,
Material or feature are included at least one embodiment or example of the invention.In the present specification, above-mentioned term is shown
The statement of meaning property need not be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described
It may be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this
The technical staff in field can be by the spy of different embodiments or examples described in this specification and different embodiments or examples
Sign is combined.
It is apparent to those skilled in the art that for convenience of description and succinctly, the dress of foregoing description
The specific work process with unit is set, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of unit, only
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.
Unit may or may not be physically separated as illustrated by the separation member, shown as a unit
Component may or may not be physical unit, it can and it is in one place, or may be distributed over multiple networks
On unit.It can select some or all of unit therein according to the actual needs to realize the mesh of the embodiment of the present invention
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, is also possible to two or more units and is integrated in one unit.It is above-mentioned integrated
Unit both can take the form of hardware realization, can also realize in the form of software functional units.
It, can if integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product
To be stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention substantially or
Say that all or part of the part that contributes to existing technology or the technical solution can embody in the form of software products
Out, which is stored in a storage medium, including some instructions are used so that a computer equipment
(can be personal computer, server or the network equipment etc.) executes all or part of each embodiment method of the present invention
Step.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-OnlyMemory), deposits at random
The various media that can store program code such as access to memory (RAM, RandomAccessMemory), magnetic or disk.
More than, only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, and it is any to be familiar with
Those skilled in the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or substitutions,
These modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be wanted with right
Subject to the protection scope asked.
Claims (10)
1. a kind of multiple-terminal control system characterized by comprising controller, programmable logic device and at least two terminals,
In, the controller is sent to described may be programmed for generating control instruction depending on the user's operation, and by the control instruction
Logic device；The programmable logic device is for the control instruction being sent to each after being shaken hands with each terminal
The terminal.
2. multiple-terminal control system according to claim 1, which is characterized in that the programmable logic device includes: to shake hands
Module and forwarding module, the handshake module with each terminal for shaking hands；The forwarding module is used for described
After handshake module and each terminal are shaken hands, the control instruction that the controller is sent is obtained, and the control is referred to
Order is sent to each terminal.
3. multiple-terminal control system according to claim 2, which is characterized in that the programmable logic device further include: filter
Wave module, the handshake that the filter module is used in the handshake procedure to the handshake module and each terminal carry out
It eliminates shake and flash removed is gone to handle.
4. multiple-terminal control system according to claim 3, which is characterized in that further include: crystal oscillator, the crystal
Oscillator is sent respectively to the handshake module and the filter module for generating clock signal, makes the handshake module
It is synchronous with filter module holding.
5. multiple-terminal control system according to claim 4, which is characterized in that the programmable logic device further include: point
Frequency module is sent to institute after the clock signal that the frequency division module is used to generate in the crystal oscillator carries out scaling down processing
State handshake module.
6. multiple-terminal control system according to claim 1, which is characterized in that the programmable logic device further include: make
Energy module, the enabled module are used to power to the controller.
7. multiple-terminal control system according to any one of claim 1 to 5, which is characterized in that the controller is rail
Mark ball or mouse.
8. multiple-terminal control system according to any one of claim 1 to 5, which is characterized in that the programmable logic
Device is CPLD programmable logic device.
9. a kind of multi-terminal control method characterized by comprising
Programmable logic device is shaken hands at least two terminals；
Controller generates control instruction depending on the user's operation, and the control instruction is sent to the programmable logic device；
The control instruction is sent to each terminal by the programmable logic device.
10. multi-terminal control method according to claim 9, which is characterized in that the programmable logic device and at least two
A terminal is shaken hands, and is specifically included:
Programmable logic device is shaken hands at least two terminals, and to the handshake in handshake procedure carry out eliminate shake and
Flash removed is gone to handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810837472.0A CN109062845A (en) | 2018-07-26 | 2018-07-26 | multi-terminal control method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810837472.0A CN109062845A (en) | 2018-07-26 | 2018-07-26 | multi-terminal control method and system |
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| CN109062845A true CN109062845A (en) | 2018-12-21 |
Family
ID=64836383
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810837472.0A Pending CN109062845A (en) | 2018-07-26 | 2018-07-26 | multi-terminal control method and system |
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| CN (1) | CN109062845A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113190479A (en) * | 2021-05-25 | 2021-07-30 | 上海航天测控通信研究所 | Data interaction method of processor and 1553B bus controller |
| CN113534691A (en) * | 2020-04-14 | 2021-10-22 | 中国长城科技集团股份有限公司 | Control system and method of terminal equipment |
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| CN106453383A (en) * | 2016-11-07 | 2017-02-22 | 深圳拓邦股份有限公司 | UART (universal asynchronous receiver/transmitter)-based master-slave multi-processor communication system and method |
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| CN202494949U (en) * | 2012-03-23 | 2012-10-17 | 中国航天科技集团公司第九研究院第七七一研究所 | Clock management module based on bus slave interface |
| JP2013214911A (en) * | 2012-04-03 | 2013-10-17 | Nakayo Telecommun Inc | Telephone terminal and screen sharing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113534691A (en) * | 2020-04-14 | 2021-10-22 | 中国长城科技集团股份有限公司 | Control system and method of terminal equipment |
| CN113190479A (en) * | 2021-05-25 | 2021-07-30 | 上海航天测控通信研究所 | Data interaction method of processor and 1553B bus controller |
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