CN106921548A - A kind of automatic coagulation analyzer communication system based on CAN - Google Patents
A kind of automatic coagulation analyzer communication system based on CAN Download PDFInfo
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- CN106921548A CN106921548A CN201710165912.8A CN201710165912A CN106921548A CN 106921548 A CN106921548 A CN 106921548A CN 201710165912 A CN201710165912 A CN 201710165912A CN 106921548 A CN106921548 A CN 106921548A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40143—Bus networks involving priority mechanisms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
- H04L12/40019—Details regarding a bus master
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40143—Bus networks involving priority mechanisms
- H04L12/4015—Bus networks involving priority mechanisms by scheduling the transmission of messages at the communication node
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40169—Flexible bus arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
A kind of automatic coagulation analyzer communication system based on CAN, including：Pc client, USB CAN modules, blood sample conveyor module, test cup conveyor module, reagent position module, three-dimensional motion control module and detection module；By the pc client, the management to blood sample to be measured, test agent, three-dimensional motion control etc. is realized, wherein, modules can serve as an independent equipment, be communicated using CAN between module, be communicated using USB line between USB CAN modules and PC.
Description
Technical field
The present invention relates to Networks and Communications technical field, and in particular to the method and structure of CAN communication.
Background technology
Automatic coagulation analyzer includes blood sample conveyor module, and reagent position management module, test cup conveyor module detects mould
Block, three-dimensional motion module, gas liquid circuit module etc..The Main Function of communication system is that each module is coupled together into composition communication network
Network, with reference to mechanical structure, different command in combination is sent by PC ends, realizes the whole WorkFlow Managerment to blood coagulation analyzer
With monitoring.As the automaticity of blood coagulation analyzer is improved constantly, in the course of the work, between modules, there is substantial amounts of
Data need exchange to process, so the performance of communication system directly affects the operating efficiency of blood coagulation analyzer.
In traditional technology, communication system architecture is the mode of one master and multiple slaves, main website and slave station address code area point.Its
The mechanism of processing data collision is host computer polls, slave computer response.Comparatively, real-time is not strong, and the utilization rate of bus is low, especially
It is that, when whole network communication node is more, real time problems are more protruded.When mistake occurs in certain node, often cause
Whole system communication paralysis.
The present invention proposes the automatic coagulation analyzer communication system based on CAN.CAN has abandoned station address volume
Code, work in multiple host pattern, each node in network can broadcast data, by different message identifiers, using nothing
The bit-by-bit arbitration mode of damage structure competes to determine bus access priority, so can make each node while receiving data.
And CAN nodes are with output function is automatically switched off, so as to ensure that total system paralysis will not be caused because respective nodes go wrong
Paralysis.Therefore the real-time and stability of automatic coagulation analyzer communication system can be improved.
The content of the invention
The present invention proposes a kind of automatic coagulation analyzer communication system based on CAN, including：Pc client,
USB-CAN modules, blood sample conveyor module, test cup conveyor module, reagent position module, three-dimensional motion control module and detection mould
Block；By the pc client, the management to blood sample to be measured, test agent, three-dimensional motion control etc. is realized, wherein, each mould
Block can serve as an independent equipment, be communicated using CAN between module, and USB is used between USB-CAN modules and PC
Line communicates.
Preferably, the three-dimensional motion control module is set at least one mechanical arm.
Preferably, the system also includes gas-liquid module.
Preferably, CAN communication interface be set to CAN send receive two pins be connected in CAN transceiver, you can
Constitute in a CAN communication node access CAN, the transmitting-receiving pin of primary processor is connected using CAN controller, data are turned
Turn to differential signal transmission to be gone to CAN, CAN controller and primary processor are powered using 3V.
A kind of control method of the automatic coagulation analyzer communication system based on CAN, including step：
Step 1：Start, processor is initialized；
Step 2：Can controllers are initialized；
Step 3：Judge whether send data, if so, then data is activation to subprogram, into step 4, if it is not, then sentencing
It is disconnected whether to receive data；
Step 4：Judge whether to receive data, if so, then enter data receiver subprogram, into step 5；If it is not, entering
Enter step 5；
Step 5：Analysis instruction；
Step 6：Perform corresponding actions；
Step 7：Terminate.
It should be appreciated that foregoing description substantially and follow-up description in detail are exemplary illustration and explanation, should not
As the limitation to claimed content of the invention.
Brief description of the drawings
With reference to the accompanying drawing enclosed, the present invention more purpose, function and advantages are by by the as follows of embodiment of the present invention
Description is illustrated, wherein：
Fig. 1 shows the general system set-up figure of automatic coagulation analyzer communication system of the invention；
Fig. 2 shows the workflow diagram of automatic coagulation analyzer communication system of the invention.
Specific embodiment
By reference to one exemplary embodiment, the purpose of the present invention and function and the side for realizing these purposes and function
Method will be illustrated.However, the present invention is not limited to one exemplary embodiment as disclosed below；Can by multi-form come
It is realized.The essence of specification is only to aid in various equivalent modifications Integrated Understanding detail of the invention.
Hereinafter, embodiments of the invention will be described with reference to the drawings.In the accompanying drawings, identical reference represents identical
Or similar part, or same or like step.
The present invention proposes a kind of automatic coagulation analyzer communication system based on CAN.With STM32F407VGT6
It is primary processor, using the CAN peripheral hardwares and CAN transceiver of chip, has built the communication system based on CAN.It is discussed in detail
The hardware design and communication process of CAN.
Technical scheme：
Automatic coagulation analyzer system includes pc client, USB-CAN modules, blood sample conveyor module, test cup conveying
Module, reagent position module, three-dimensional motion control module and detection module etc..By pc client, realize to blood sample to be measured, survey
Have a try agent, three-dimensional motion control etc. management.Modules can serve as an independent equipment, and CAN is used between module
Bus communication.Communicated using USB line between USB-CAN modules and PC.General system set-up figure is as shown in Figure 1.
According to one embodiment of present invention, the three-dimensional motion control module is set at least one mechanical arm.
According to one embodiment of present invention, the system also includes gas-liquid module.
CAN communication interface, is the most important part of whole communication system.Connect using the CAN1 controllers of primary processor
Mouthful, CAN sends two pins (CANTX and CANRX) of reception and is connected in CAN transceiver, you can constitute a CAN communication node
In access CAN.The transmitting-receiving pin of primary processor is connected using CAN controller, data is converted into differential signal transmission and is arrived
CAN gets on, and CAN controller and primary processor are powered using 3V.
After system starts, modules are resetted first, reading reagent position, the information of test cup.Then control examination
Pipe carrier has loaded blood sample, is transported to specified location, by three-dimensional motion module control machinery arm, blood sample and reagent is drawn respectively,
Test cup is put into, test cup is transported to test position and starts detection, and testing result finally is uploaded into pc client, whole flow process
The response signal of host computer instruction and each module is transmitted by CAN.
Communication system software is main soft by pc client software, USB-CAN module softwares and each child node CAN communication
Part is constituted.Client software, positioned at the superiors of whole communication system, there is provided human-computer interaction interface, is used directly facing user
Family sends the commands to control whole machine to work by the interface, while client also monitors the state sum of modules operation
According to.USB-CAN modules mainly complete the conversion of usb protocol and CAN protocol, are the bridges for being connected PC and functional module.Each height
Node corresponds to different functional modules respectively, realizes the actual functional capability of modules.
First have to initialize CAN controller, configure the multiplexing function of related pin, enable internal CAN clocks,
CAN mode of operations, baud rate, wave filter are set.CAN is respectively configured afterwards sends and receives interruption.General flow chart such as Fig. 2 institutes
Show.
Step is：
Step 201：Start, processor is initialized；
Step 202：Can controllers are initialized；
Step 203：Judge whether to send data, if so, step 204 data is activation is performed to subprogram, if it is not, directly
Then judge whether to receive data into step 205；
Step 205：Judge whether to receive data, if so, step 206 data receiver subprogram is performed, if it is not, into step
Rapid 207；
Step 207：Analysis instruction；
Step 208：Perform corresponding actions；
Step 209：Terminate.
The execution unit of automatic coagulation analyzer includes direct current generator, stepper motor, limit switch, slot optical coupling, electricity
Magnet valve, air pump etc., according to the characteristics of these parts, with reference to the structure of CAN communication, setting data segment length is 8 bytes, data
Form is as shown in table 1.
The single packet communication data form of table 1
With reference to the explanation of the invention and practice that disclose here, other embodiment of the invention is for those skilled in the art
All will be readily apparent and understand.Illustrate and embodiment is to be considered only as exemplary, true scope of the invention and purport are equal
It is defined in the claims.
Claims (5)
1. a kind of automatic coagulation analyzer communication system based on CAN, including：Pc client, USB-CAN modules, blood
Sample conveyor module, test cup conveyor module, reagent position module, three-dimensional motion control module and detection module；By the PC
Client, realizes the management to blood sample to be measured, test agent, three-dimensional motion control etc., wherein, modules can serve as one
Individual independent equipment, is communicated between module using CAN, is communicated using USB line between USB-CAN modules and PC.
2. system according to claim 1, it is characterised in that：The three-dimensional motion control module is set at least one machine
Tool arm.
3. system according to claim 1, it is characterised in that：The system also includes gas-liquid module.
4. system according to claim 1, it is characterised in that：CAN communication interface is set to CAN and sends reception two
Pin is connected in CAN transceiver, you can is constituted in a CAN communication node access CAN, is connected using CAN controller
Data are converted into differential signal transmission and are gone to CAN by the transmitting-receiving pin of primary processor, CAN controller and primary processor
Powered using 3V.
5. a kind of control method of the automatic coagulation analyzer communication system based on CAN, including step：
Step 1：Start, processor is initialized；
Step 2：Can controllers are initialized；
Step 3：Judge whether send data, if so, then data is activation to subprogram, into step 4, if it is not, then judge be
No reception data；
Step 4：Judge whether to receive data, if so, then enter data receiver subprogram, into step 5；If it is not, into step
Rapid 5；
Step 5：Analysis instruction；
Step 6：Perform corresponding actions；
Step 7：Terminate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610945286 | 2016-11-02 | ||
| CN201610945286X | 2016-11-02 |
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| CN106921548A true CN106921548A (en) | 2017-07-04 |
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| CN201710165912.8A Pending CN106921548A (en) | 2016-11-02 | 2017-03-20 | A kind of automatic coagulation analyzer communication system based on CAN |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109802877A (en) * | 2017-11-16 | 2019-05-24 | 长沙闽壹湖电子科技有限责任公司 | A kind of CAN bus based Communication System Design |
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| US4000972A (en) * | 1976-01-16 | 1977-01-04 | Hemotec, Inc. | Measuring system for the pharmacological manipulation of the coagulation mechanism in blood and for the elapsed coagulation time |
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| US4000972A (en) * | 1976-01-16 | 1977-01-04 | Hemotec, Inc. | Measuring system for the pharmacological manipulation of the coagulation mechanism in blood and for the elapsed coagulation time |
| USRE41946E1 (en) * | 1997-07-22 | 2010-11-23 | International Technidyne Corporation | Portable immediate response medical analyzer having multiple testing modules |
| CN201741017U (en) * | 2010-04-28 | 2011-02-09 | 上海安彩智能技术有限公司 | Control system of full-automatic inspection center |
| CN102072952A (en) * | 2010-11-22 | 2011-05-25 | 长春迪瑞医疗科技股份有限公司 | Mixed type control system of full-automatic biochemical analyzer |
| CN104901857A (en) * | 2015-04-07 | 2015-09-09 | 安徽康海时代科技有限公司 | Bus analyzer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109802877A (en) * | 2017-11-16 | 2019-05-24 | 长沙闽壹湖电子科技有限责任公司 | A kind of CAN bus based Communication System Design |
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