CN208112646U - A kind of transmitter loop network control system - Google Patents
A kind of transmitter loop network control system Download PDFInfo
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- CN208112646U CN208112646U CN201820130504.9U CN201820130504U CN208112646U CN 208112646 U CN208112646 U CN 208112646U CN 201820130504 U CN201820130504 U CN 201820130504U CN 208112646 U CN208112646 U CN 208112646U
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- bus
- gateway
- serial ports
- transmitter
- gateways
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Abstract
The utility model discloses a kind of transmitter loop network control system and control methods, the control system proposes a kind of ring-like transmitter bus networking mode, it, which has two gateways, to be mutually redundant, since there is no the branch of network structure, therefore it can be realized in a gateway fails, guarantee that the measurement data of transmitter in whole system is not lost.The technical solution of the utility model is：System includes host computer, two gateways and multiple transmitters for having bus communication protocol output.Have 2 or more mutual independent serial ports in gateway.Serial ports quantity is identical in two gateways, and corresponds combination and form multiple groups bus serial ports pair.It is connected between two serial ports of every group of bus serial ports centering by a bus.Multiple transmitters for having bus communication protocol output connect in bus.Two gateways pass through Ethernet and connect host computer.
Description
Technical field
The utility model relates to industrial stokehold technical fields, and in particular to a kind of transmitter loop network control system.
Background technique
In industrial process control field, the technical requirements to the data acquisition link of front end are intelligent and intensive.Intelligence
Energyization refers to the working condition of whole network, the working condition of monomer transmitter and the letter such as equipment and the health status of network
Breath, overlayer monitors system can monitor.It is intensive to refer to relative to traditional point-to-point communication mode, MODBUS/CANBUS
The transmitter acquisition system of bus-ring form has the function of simplified communication line and signal acquiring system.
Industrial process control field common bus form in number bus acquisition system has Foundation
Fieldbus, Profibus, Modbus, Canbus etc..
Tree network or Star Network are mostly used for traditional bus networking mode of transmitter at present, for tradition
Transmitter bus network under networking mode, if gateway breaks down, for the network of irredundant structure design, the failure gateway
Under all transmitter measurement data can not send master system to.And the network for there is redundancy structure to design, it is superfluous
Remaining structure can only also design in tree-shaped branch or star-like branched structure, therefore can only guarantee this tree-like branch/star of fault-free
Transmitter measurement data in type branched structure is not lost, transmitter measurement data when not can guarantee gateway fails in other branches
It does not lose.
Traditional bus networking mode mostly uses the mode uploaded step by step on data transfer path, if data transmission route
Occurs breakpoint on diameter, then the measurement data of the transmitter after breakpoint location will be unable to send host computer to.And traditional networking side
Under formula, the specific location of data transmission link top broken-point can not be judged, can only check paragraph by paragraph, labor intensive and time.
Summary of the invention
In view of this, the present invention provides a kind of transmitter loop network control system, which proposes one kind
Ring-like transmitter bus networking mode, having two gateways can be mutually redundant, since there is no the branch of network structure,
Therefore it can be realized in a gateway fails, guarantee that the measurement data of transmitter in whole system is not lost.
The technical solution of the utility model is：
The embodiment of the first aspect of the utility model provides a kind of transmitter loop network control system, which includes upper
Position machine, two gateways and multiple transmitters for having bus communication protocol output.
Have 2 or more mutual independent serial ports in gateway.
Serial ports quantity is identical in two gateways, and corresponds combination and form multiple groups bus serial ports pair.
It is connected between two serial ports of every group of bus serial ports centering by a bus.
Multiple transmitters for having bus communication protocol output connect in bus.
Two gateways pass through Ethernet and connect host computer.
In one or more embodiments of the utility model first aspect, the measurement data that transmitter acquisition obtains, packet
Include one of following data or a variety of：
Pressure value, differential pressure value, temperature value, flow value and level value.
In one or more embodiments of the utility model first aspect, system has following operating mode：
One is randomly selected between two gateways as primary gateway, another is used as from gateway.
Primary gateway sets the work of its serial ports in aggressive mode；Primary gateway sends data acquisition instructions to total by its serial ports
The multiple transmitters connected on line.
Transmitter responds after receiving data acquisition instructions, and the measurement data that itself acquisition obtains is passed through always
Line is sent to primary gateway.
From gateway, the work of its serial ports is set in Passive Mode；Own from gateway by what its serial ports monitoring primary gateway obtained
Transmitter measurement data as backup.
The measurement data of acquisition is formed message information by two gateways, is uploaded to host computer by Ethernet.
In one or more embodiments of the utility model first aspect, from gateway, it is also used to：
The break period that the primary gateway is uploaded to the message information of host computer is monitored, if the break period is more than to preset
Threshold value, from gateway handoff be primary gateway.
In one or more embodiments of the utility model first aspect, bus is to meet MODBUS or CANBUS to lead to
Interrogate the bus of agreement.
In one or more embodiments of the utility model first aspect, primary gateway is also used to：
Address code is carried out for transmitter each in a bus.
The communication state parameter for each transmitter in a bus is established, communication state parameter is used to indicate transmitter
Communication state is normal or failure.
Beneficial effect：
1, the utility model provides a kind of transmitter loop network control system, is a kind of ring-like transmitter bus networking side
Formula, having two gateways can be mutually redundant, and since there is no the branch of network structure, therefore can be realized in a gateway
When failure, guarantee that the measurement data of transmitter in whole system is not lost；Compared to traditional networking mode in network failure state
With the deficiency of system monitoring ability when transmitter malfunction, ring-shaped network mode is only used on two gateways energy Logistics networks
The measurement data of all transmitters do not lose, network structure is simple, and data-transmission efficiency is high.
Detailed description of the invention
Fig. 1 is a kind of transmitter loop network control the system composition block diagram provided by the embodiment of the utility model.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
Referring to FIG. 1, Fig. 1 shows a kind of transmitter loop network control system provided by the embodiment of the utility model, this is
System includes host computer, two gateways and multiple transmitters for having bus communication protocol output.
Have 2 or more mutual independent serial ports in gateway；As shown in Figure 1, including two gateways, each gateway
In all have 2 or more serial ports, and it is mutually indepedent between the serial ports in the same gateway.He only gives 3 serial ports in Fig. 1
The case where, practical serial ports quantity may be implemented at 2 or more.
Serial ports quantity is identical in two gateways, and the serial ports in two gateways corresponds combination and forms multiple groups bus serial ports
It is right.One group of bus serial ports is connected to a bus is passed through between two serial ports of centering；Then the system corresponds to multiple groups bus serial ports pair
With multiple bus, ring type structure is constituted between bus and bus, therefore is a kind of ring-like networking mode.
Above-mentioned multiple transmitters for having bus communication protocol output connect in bus；Bus in the utility model embodiment
It can be the bus for meeting MODBUS CANBUS communications protocol.The quantity of transmitter, which can according to need, to be configured,
In the utility model embodiment, transmitter needs to measure the acquisition of data, measurement data collected, including following data
One of or it is a variety of：Pressure value, differential pressure value, temperature value, flow value and level value.Therefore in the specific implementation process,
It can according to need the type of the measurement data of acquisition in every bus and quantity connect different number, different types of pick-up
Device.
Two gateways pass through Ethernet and connect host computer in the utility model.Gateway can obtain transmitter by bus
Measurement data, host computer then obtains obtained measurement data in gateway by Ethernet.Host computer is also available simultaneously
The status information of gateway, such as can know the operating mode of gateway, the operating mode etc. of serial ports in gateway.
A kind of transmitter loop network control system provided by the embodiment of the utility model is a kind of ring-like transmitter bus group
Net mode, having two gateways can be mutually redundant.
System provided by the utility model, in order to realize the measurement data backup setting of redundancy, the work of settable system
Operation mode is as follows：
One is randomly selected between two gateways as primary gateway, another is used as from gateway；Primary gateway and from gateway
It is two kinds of operating modes.
Wherein primary gateway sets the work of its serial ports in aggressive mode；Primary gateway sends data acquisition instructions by its serial ports
To the multiple transmitters connected in bus；
Transmitter responds after receiving data acquisition instructions, and the measurement data that itself acquisition obtains is passed through always
Line is sent to primary gateway；
From gateway, the work of its serial ports is set in Passive Mode；Own from gateway by what its serial ports monitoring primary gateway obtained
Transmitter measurement data as backup；
The measurement data of acquisition is formed message information by two gateways, is uploaded to host computer by Ethernet.Wherein report
Gateway mode data can also be added in literary information, each serial ports is main by mode data in gateway, convenient for host computer to this
The working condition of each equipment in networking differentiates.
In order to realize in a gateway fails, guarantee that the measurement data of transmitter in whole system is not lost.This is practical
From gateway in new embodiment, it is also used to：
The break period that the primary gateway is uploaded to the message information of host computer is monitored, if the break period is more than to preset
Threshold value, from gateway handoff be primary gateway.In the utility model embodiment, preset threshold value can carry out based on experience value
It sets, can be set to 30 seconds in the utility model embodiment.
Primary gateway in the utility model embodiment, is also used to：Address code is carried out for transmitter each in a bus；It builds
The vertical communication state parameter for each transmitter in a bus, the communication state that communication state parameter is used to indicate transmitter are
Normal or failure.Special register can be set in the utility model embodiment in primary gateway for storing every bus
The address code and communication state parameter of upper each transmitter, wherein communication state parameter can indicate failure using " 0 ", use
" 1 " instruction is normal.
According to the loop network control system that above-described embodiment provides, in network failure state and become compared to traditional networking mode
The deficiency of system monitoring ability when sending device malfunction, ring-shaped network mode only use the institute on two gateways energy Logistics networks
There is the measurement data of transmitter not lose, network structure is simple, and data-transmission efficiency is high.
In conclusion the above is only the preferred embodiments of the present utility model only, it is not intended to limit the utility model
Protection scope.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all wrap
Containing being within the protection scope of the utility model.
Claims (6)
1. a kind of transmitter loop network control system, which is characterized in that the system comprises host computer, two gateways and multiple tools
The transmitter of standby bus communication protocol output；
Have 2 or more mutual independent serial ports in the gateway；
Serial ports quantity is identical in two gateways, and corresponds combination and form multiple groups bus serial ports pair；
It is connected between two serial ports of every group of bus serial ports centering by a bus；
The multiple transmitter for having bus communication protocol output connects on the bus；
Two gateways pass through Ethernet and connect the host computer.
2. the system as claimed in claim 1, which is characterized in that the measurement data that the transmitter acquisition obtains, including it is as follows
One of data are a variety of：
Pressure value, differential pressure value, temperature value, flow value and level value.
3. the system as claimed in claim 1, which is characterized in that the system has following operating mode：
One is randomly selected between described two gateways as primary gateway, another is used as from gateway；
The primary gateway sets the work of its serial ports in aggressive mode；The primary gateway sends data acquisition instructions by its serial ports
To the multiple transmitters connected in bus；
The transmitter responds after receiving the data acquisition instructions, and the measurement data that itself acquisition obtains is led to
It crosses bus and is sent to the primary gateway；
It is described from gateway, set its serial ports work in Passive Mode；It is described to be obtained from gateway by its serial ports monitoring primary gateway
The measurement data of all transmitters obtained is as backup；
The measurement data of acquisition is formed message information by two gateways, is uploaded to the host computer by Ethernet.
4. system as claimed in claim 3, which is characterized in that it is described from gateway, it is also used to：
The break period that the primary gateway is uploaded to the message information of the host computer is monitored, if the break period is more than preparatory
The threshold value of setting, it is described from gateway handoff be primary gateway.
5. the system as described in Claims 1 to 4 is any, which is characterized in that the bus is to meet MODBUS or CANBUS
The bus of communications protocol.
6. the system as described in claim 3~4 is any, which is characterized in that the primary gateway is also used to：
Address code is carried out for transmitter each in a bus；
The communication state parameter for each transmitter in a bus is established, the communication state parameter is used to indicate transmitter
Communication state is normal or failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820130504.9U CN208112646U (en) | 2018-01-25 | 2018-01-25 | A kind of transmitter loop network control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820130504.9U CN208112646U (en) | 2018-01-25 | 2018-01-25 | A kind of transmitter loop network control system |
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| Publication Number | Publication Date |
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| CN208112646U true CN208112646U (en) | 2018-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820130504.9U Withdrawn - After Issue CN208112646U (en) | 2018-01-25 | 2018-01-25 | A kind of transmitter loop network control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108289050A (en) * | 2018-01-25 | 2018-07-17 | 北京海智元科技有限公司 | A kind of transmitter loop network control system and control method |
-
2018
- 2018-01-25 CN CN201820130504.9U patent/CN208112646U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108289050A (en) * | 2018-01-25 | 2018-07-17 | 北京海智元科技有限公司 | A kind of transmitter loop network control system and control method |
| CN108289050B (en) * | 2018-01-25 | 2023-07-04 | 北京海智元科技有限公司 | Ring network control system and control method for transmitter |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181116 Effective date of abandoning: 20230704 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20181116 Effective date of abandoning: 20230704 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |