CN206451170U - A kind of multi-serial extension equipment - Google Patents
A kind of multi-serial extension equipment Download PDFInfo
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- CN206451170U CN206451170U CN201621442907.4U CN201621442907U CN206451170U CN 206451170 U CN206451170 U CN 206451170U CN 201621442907 U CN201621442907 U CN 201621442907U CN 206451170 U CN206451170 U CN 206451170U
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Abstract
The utility model discloses a kind of multi-serial extension equipment.It can be connected using the utility model with multiple serial external equipments with different application layer protocol, agreement is automatically selected according to the difference of external equipment and changed.The utility model includes single-chip microcomputer, parallel interface, multiple serial line interfaces and the preselected switch of interface type.Single-chip microcomputer judges external equipment type by reading the signal of the preselected switch of interface type, realizes the interface protocol logical transition between parallel interface and multiple serial line interfaces.Using multi-serial extension equipment of the present utility model, medical computerized linear accelerator main frame can connect multiple hand-held controllers or display, facilitate operator's operation and obtain electron linear accelerator information in time；The quantity of flexibly configurable hand-held controller and display.
Description
Technical field
The utility model is related to Interface Expanding technical field, and in particular to a kind of multi-serial extension equipment, can be applied to doctor
With electron linear accelerator multi-serial extension.
Background technology
, it is necessary to operate doctor using hand-held controller at multiple control points in medical computerized linear accelerator operating process
With electron linear accelerator, and show in multiple displays acceleration information, accelerator main frame external interface is connects parallel
Mouthful, hand-held controller and display external interface are serial line interface, it is therefore desirable to a kind of multi-serial extension equipment, make accelerator
Main frame can be with multiple hand-held controllers and display connection communication.Due to being answered used in hand-held controller and display
It is different with layer communication protocol, therefore it is required that multi-serial extension equipment possesses various protocols translation function, and can be according to external
The difference of equipment automatically selects agreement, and existing multi-serial extension equipment only supports single communication protocol, it is impossible to which meeting should
Plant use environment.
Utility model content
In view of this, the utility model provides a kind of multi-serial extension equipment, can have different application layer with multiple
The serial external equipment connection of agreement, automatically selects agreement according to the difference of external equipment and changes.
Multi-serial extension equipment of the present utility model, including：Single-chip microcomputer, parallel interface, more than 2 serial line interfaces and 2
The preselected switch of above interface type；Ancillary equipment is the external equipment that device A and more than 2 have different communication protocol；
Wherein, single-chip microcomputer is connected by serial line interface with external equipment, is connected by parallel interface with device A；Interface class
The preselected switch of type is connected with single-chip microcomputer, and is connected with serial line interface one-to-one corresponding logic；
The preselected difference for switching the external equipment connected according to serial line interface of the interface type, sets different outputs
Signal；
The single-chip microcomputer is used to realize the communication Protocol Conversion between device A and external equipment, is preselected according to interface type
The output signal for selecting switch judges external equipment type, select corresponding communication Protocol Conversion realize device A and external equipment it
Between communication.
Further, the parallel interface is made up of CPLD and bus transceiver.
Further, the serial line interface is RS485 or RS422.
Further, the serial line interface is made up of digital isolator and bus transceiver.
Beneficial effect：
1st, using multi-serial extension equipment, can be achieved device A simultaneously with multiple external equipments with different communication protocol
Between communication, for example：Medical computerized linear accelerator main frame can connect multiple hand-held controllers and display, convenient operation
Member's operation and in time acquisition electron linear accelerator information.
2nd, multi-serial extension equipment has multiprotocol conversion and the preselected function of interface type, flexibly configurable external equipment
Type and its quantity.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model multi-serial extension equipment.
Fig. 2 is the workflow diagram of the utility model multi-serial extension equipment.
Embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
The utility model provide a kind of multi-serial extension equipment, as shown in figure 1, including single-chip microcomputer, parallel interface, 2
Above serial line interface and the preselected switch of more than 2 interface types.Wherein, single-chip microcomputer passes through parallel interface and medical electron linear
Accelerator main frame is connected, and is connected by serial line interface with hand-held controller and/or display；Wherein, serial line interface with it is hand-held
Formula controller or display connect one to one.Multi-serial extension equipment of the present utility model can be with more than 1 hand-held control
Device processed and the connection of the display of more than 1.Hand-held controller and display can flexibly be determined according to different use environments
Quantity.
The preselected switch of interface type is needed with being corresponded in serial interface logic when serial line interface connects external equipment
The preselected position of the switch of the corresponding interface type is set, single-chip microcomputer judges external equipment type when being easy to upper electric.For example, can set
For：When serial line interface external equipment for when connecing hand-held controller, the preselected switch of interface type is set to high level, works as serial interface
When mouth external equipment is display, the preselected switch of interface type is set to low level；The preselected switch of interface type and list
Piece machine is connected.
Single-chip microcomputer is used to realize the communication Protocol Conversion between medical computerized linear accelerator main frame and hand-held controller,
And the communication Protocol Conversion between medical computerized linear accelerator main frame and display, it is preselected according to the interface type of reading
The signal of switch judges the type of serial interface external equipment, and then selects corresponding communication Protocol Conversion mode, realizes external
Communication between equipment and medical computerized linear accelerator main frame.
Wherein, parallel interface is made up of CPLD and bus transceiver.Serial line interface is RS485 or RS422, by numeral isolation
Device and bus transceiver composition.
Multi-serial extension equipment workflow is as shown in Figure 2.After device power, single-chip microcomputer reads interface type pre-selection first
The signal of switch is selected, judges that all serial ports connect the type of external equipment, that is, it is hand-held controller or aobvious to connect external equipment
Show device.If having detected hand-held controller sends power on request, whether hand-held control is had in detection present communications queue
Device processed is online, if online without hand-held controller, agrees to power on request, and the hand-held controller is added into communication queue；If
Existing hand-held controller is online, then refuses power on request, keeps communicating with online hand-held controller.The priority policy
It ensure that synchronization only has a hand-held controller online, it is to avoid many hand-held controllers operate electronic line of sight to add simultaneously
Fast device, so as to cause equipment safety hidden danger.When hand-held controller sends control command, single-chip microcomputer receives and parses through the life
Order, by parallel interface and electron linear accelerator main-machine communication, sends the control command of hand-held controller, and Receiving Host
Status information.Single-chip microcomputer is received after the status information of main frame, and the information is distinguished after translation resolution according to communication translation-protocol
It is respectively sent to hand-held controller and display.Hand-held controller and display can show the state letter of main frame in real time simultaneously
Breath.
The utility model be applicable not only to medical computerized linear accelerator main frame and hand-held controller and/or display it
Between communication, and go for that various serial ports turn parallel port or parallel port turns serial ports, one-to-many protocol conversion, realize with it is many
Communication between type external equipment.
In summary, preferred embodiment of the present utility model is these are only, is not intended to limit of the present utility model
Protection domain.It is all it is of the present utility model spirit and principle within, any modification, equivalent substitution and improvements made etc. all should be wrapped
It is contained within protection domain of the present utility model.
Claims (4)
1. a kind of multi-serial extension equipment, it is characterised in that including：Single-chip microcomputer, parallel interface, more than 2 serial line interfaces and 2
The preselected switch of above interface type；Ancillary equipment is the external equipment that device A and more than 2 have different communication protocol；
Wherein, single-chip microcomputer is connected by serial line interface with external equipment, is connected by parallel interface with device A；Interface type is pre-
Selecting switch is connected with single-chip microcomputer, and is connected with serial line interface one-to-one corresponding logic；
The preselected difference for switching the external equipment connected according to serial line interface of the interface type, sets different output letters
Number；
The single-chip microcomputer is used to realize the communication Protocol Conversion between device A and external equipment, is opened according to interface type is preselected
The output signal of pass judges external equipment type, selects corresponding communication Protocol Conversion to realize between device A and external equipment
Communication.
2. multi-serial extension equipment as claimed in claim 1, it is characterised in that the parallel interface is received and dispatched by CPLD and bus
Device is constituted.
3. multi-serial extension equipment as claimed in claim 1, it is characterised in that the serial line interface is RS485 or RS422.
4. multi-serial extension equipment as claimed in claim 3, it is characterised in that the serial line interface is by digital isolator and always
Line transceiver is constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621442907.4U CN206451170U (en) | 2016-12-26 | 2016-12-26 | A kind of multi-serial extension equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621442907.4U CN206451170U (en) | 2016-12-26 | 2016-12-26 | A kind of multi-serial extension equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206451170U true CN206451170U (en) | 2017-08-29 |
Family
ID=59673793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621442907.4U Active CN206451170U (en) | 2016-12-26 | 2016-12-26 | A kind of multi-serial extension equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206451170U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108509364A (en) * | 2018-06-08 | 2018-09-07 | 上海哈诚电子科技有限公司 | A kind of serial and parallel communication Interface Extender |
| CN109828938A (en) * | 2018-12-13 | 2019-05-31 | 山东亚华电子股份有限公司 | A kind of communication means and device based on chip |
| CN115052021A (en) * | 2022-06-24 | 2022-09-13 | 浪潮工业互联网股份有限公司 | Automatic monitoring method and equipment for industrial equipment |
-
2016
- 2016-12-26 CN CN201621442907.4U patent/CN206451170U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108509364A (en) * | 2018-06-08 | 2018-09-07 | 上海哈诚电子科技有限公司 | A kind of serial and parallel communication Interface Extender |
| CN109828938A (en) * | 2018-12-13 | 2019-05-31 | 山东亚华电子股份有限公司 | A kind of communication means and device based on chip |
| CN115052021A (en) * | 2022-06-24 | 2022-09-13 | 浪潮工业互联网股份有限公司 | Automatic monitoring method and equipment for industrial equipment |
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