CN104345722B - A kind of method for solving urban track traffic Escalator information island - Google Patents
A kind of method for solving urban track traffic Escalator information island Download PDFInfo
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- CN104345722B CN104345722B CN201410660337.5A CN201410660337A CN104345722B CN 104345722 B CN104345722 B CN 104345722B CN 201410660337 A CN201410660337 A CN 201410660337A CN 104345722 B CN104345722 B CN 104345722B
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- escalator
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- status signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
Abstract
The present invention relates to a kind of method for solving urban track traffic Escalator information island, comprise the following steps：S0, start perform；S1, the status signal transmission for judging whether to Escalator, jump to step S9 if not；Otherwise step S2 is jumped to；S2, judge whether the status signal of Escalator sends to client, if then jumping to step S3；S3, the change information for gathering Escalator；S4, conversion Escalator signal is can transformats；S5, the Escalator signal after conversion sent to client, and notify client to complete the conversion of data and jump to step S9；S9, determine whether to exit, if it is not, then step jumps to step S1, otherwise skip to step S10；S10, end.Implement the present invention, conversion can be acquired by the signal to Escalator, so that originally can not monitored device identification Escalator status signal be converted into the signal that can be recognized, transmit, and then realization is to the condition monitoring of Escalator, so that the problem of overcoming urban track traffic Escalator information island in the prior art.
Description
Technical field
The present invention relates to urban track traffic monitoring system technology, solve city rail more specifically to one kind and hand over
The method of energization staircase information island.
Background technology
It is to solve the current urban transportation of China to block to greatly develop the urban track traffic based on subway and light rail transit
Important means, will be up to 1,156,800,000,000 yuan to China's subway construction investment planning volume in 2015.Dalian subway engineering environment and equipment
The bid section of monitoring system EPC Project second includes No. 2 lines all 28 stations, transit tunnel, control centres etc..Control centre
Need to introduce the signal of each station terminal equipment, such as electricity, staircase, terminal device has diversity, helped in such as electricity, staircase producer
Ladder has this that the base of a fruit is gloomy, Xizi, a famous beauty in the late Spring and Autumn Period is difficult to understand, Hua Sheng Fuji to reach, Bo Linte, concerted effort etc., and Rockwell upper configuration software is only supported to use
In Object link and embedded agreement (the object linking and embedding for process of process control
control,OPC).Because communication protocol, communication access mode have differences between different vendor's system, cause Escalator
Status information can not be sent to control centre, form information island.Therefore how the signal of these " information islands " in real time may be used
The data server of control centre is delivered to by ground, is key issue urgently to be resolved hurrily in City Rail Transit System.
The content of the invention
There is provided one kind solution for the problem of present invention is directed to Escalator existence information isolated island in existing City Rail Transit System
The certainly method of urban track traffic Escalator information island, to overcome defect of the prior art.
The method for the solution urban track traffic Escalator information island that the present invention is provided, comprises the following steps：
S0, start perform；
S1, the status signal transmission for judging whether to Escalator, jump to step S9 if not；Otherwise step is jumped to
S2；
S2, judge whether the status signal of Escalator sends to client, if then jumping to step S3；
S3, the change information for gathering Escalator；
S4, conversion Escalator signal is can transformats；
S5, the Escalator signal after conversion sent to client, and notify client to complete the conversion of data and redirect
To step S9；
S9, determine whether to exit, if it is not, then step jumps to step S1, otherwise skip to step S10；
S10, end.
The method of the solution urban track traffic Escalator information island of the present invention, in addition to：
When the step S2 judges that the status signal of Escalator is not sent to client, step S6 is jumped to；The step
Suddenly S6 is：Data in reading service device on Escalator state；Hereafter step S7 is jumped to；
S7, delta data in server on Escalator is sent to client；Hereafter step S8 is jumped to；
S8, send data to collection Escalator state at handled；Hereafter step S9 is jumped to.
The method of the solution urban track traffic Escalator information island of the present invention, the step S1 includes：Judge service
Whether device waits the asynchronous call of CLIENT PROGRAM.
The method of the solution urban track traffic Escalator information island of the present invention, the step S2 includes：Judge whether
Perform write operation.
The method of the solution urban track traffic Escalator information island of the present invention, the step S3 includes：To DasRdb
The data of change carry out write operation.
The method of the solution urban track traffic Escalator information island of the present invention, the step S4 includes：Client is led to
Cross asynchronous write function WriteAsync20 and send write data requests to server.
The method of the solution urban track traffic Escalator information island of the present invention, the step S5 includes：
Server notifies client to write number after the completion of operation by calling interface member function OnWriteComplete ()
According to completion.
The method of the solution urban track traffic Escalator information island of the present invention, the step S6 includes：Reading service
The data of device change.
The method of the solution urban track traffic Escalator information island of the present invention, the step S7 includes：Use receiver
Data are given client by interface member function OnDataChange ().
The method of the solution urban track traffic Escalator information island of the present invention, the step S8 includes：Client brush
The data transfer of change is given database D asRdb by new interface by RDC_WriteVar () function simultaneously.
Implementing the method for the solution urban track traffic Escalator information island of the present invention has following beneficial effect：It is logical
Cross and conversion be acquired to the signal of Escalator so that originally can not monitored device identification Escalator status signal be converted into
The signal can recognize, transmitted, and then the condition monitoring to Escalator is realized, so as to overcome urban track traffic in the prior art
The problem of Escalator information island.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention will be described, wherein：
Fig. 1 is the system construction drawing for realizing urban track traffic Escalator information island of the present invention；
Fig. 2 solves the method flow diagram of urban track traffic Escalator information island for the present invention；
Fig. 3 is that the method flow diagram for solving urban track traffic Escalator information island is realized using Fig. 1 systems.
Embodiment
The present invention is directed in the prior art, and the control centre of City Rail Transit System can not receive the signal of Escalator,
The problem of causing Escalator existence information isolated island.Therefore, the present invention is suitable by being added between control centre and Escalator
Client and server so that the run signal of Escalator can be converted to the signal of suitable control centre's access, solve electricity
The problem of staircase signal isolated island.
It is as shown in Figure 1 the system design frame diagram of first preferred embodiment of the invention, including following part：Track is handed over
Logical comprehensive monitoring system 1, RSLinx opc servers 3, IndasOPC Client clients 5, dasRdb real-time data bases 8, electricity
Staircase 9, wherein, it is real-time that Modbus device drives 6 and UDP device drives 7 are embedded into dasRdb in the way of dynamic link library (DLL)
In database 8, data interaction is realized in the way of call back function；DasRdb real-time data bases 8 pass through the He of Modbus device drives 6
UDP device drives 7 are communicated with Escalator 9, read the floor signal of Escalator, upward signal, downstream signal, switch gate signal,
Alarm signal, maintenance signal and fault-signal；IndasOPC Client clients 5 are provided by dasRdb real-time data bases 8
Api interface function realizes interacting for OPC Client objects 4 and the signal of dasRdb real-time data bases 8；RSLinx opc servers 3
In OPC Server objects 2 and IndasOPC Client clients 5 in OPC Client objects assisted by OPC DA2.0
View is communicated；General track traffic synthetic monitoring system 1 is read as OPC Client from RSLinx opc servers 3
Data.
Opc server establishes the com interface and object for meeting OPC specifications.OPC object logic models include 3 classes pair
As i.e. target opc server (OPCServer), OPC group objects (OPCGroup) and OPC objects (OPCItem), per class pair
As all including a series of interfaces.Wherein, OPCServer safeguards the information about server and the tundish vessel as OPCGroup,
Can be with dynamic creation or release group objects.OPCGroup provides the mechanism for containing OPCItem, logically realization pair
OPCItem management.OPCItem represents a connection of opc server and data source, including value, quality, timestamp 3
Base attribute, data value is represented in VARIANT forms.Because RockWell companies service there is provided RSLinx as OPC
Device, therefore Dalian metro project only needs to realize OPC client exploitation and the communication of man-machine interface and equipment.Specifically, the above
All parts, which are used, is preferred to use following implementation：
1) RSLinx opc servers
The RSLinx communication softwares of RockWell companies provide the opc server (RSLinx for meeting OPC DA2.0 specifications
OPC Server).In theory, opc server is data providing, but in the present system data from subway station it is each electricity,
Staircase.Because data two-way can be read and write, therefore each electricity, real time data (such as elevator up-down mark, the failure of staircase in the system
Mark, floor mark etc.) by setting up corresponding global label in the PLC (processor 1756-L71) in RockWell companies
(internal memory point), then in RSLinx to " DDE/OPC Topic Configuration " carry out easy configuration, you can realize with
PLC communication, so that the global label comprising electricity, staircase in PLC is imported into RSLinx OPC Server.
2) DasRdb real-time data bases
Real-time data base DasRdb is responsible for the data acquisition and conversion of field apparatus, and the historical data of engineering value enters
Storehouse.Mutual phase transformation between collection value and engineering value is completed using formula mode, and device driver only need to provide collection value i.e.
Can.Device driver is write using regular dynamic link library (dynamic link library, DLL) mode, is moved when using
State is loaded.Each equipment DLL drivings are using the interface function of unified standard, and driver is by calling connecing for these standards
Mouth function realizes its specific function.Drive information structure ECDINFO is filled in device driver, by counting in real time
Dynamic call is realized according to the call back function in storehouse.The byte of ECDINFO fixed length 512.
3) IndasOpcClient clients
IndasOpcClient clients as middleware, it is necessary to realize with RSLinx OPC Server servers and
The communication of DasRdb databases.
OPCDA specifications define two kinds of communication modes：Synchronous communication and asynchronous communication.Work as OPC under synchronous communication mode
When CLIENT PROGRAM carries out associative operation to opc server, OPC CLIENT PROGRAMs must be whole when the corresponding operation of opc server
It could be returned after completing.OPC CLIENT PROGRAMs are constantly in wait state during this period.As OPC visitors under asynchronous communication meanses
When family program carries out associative operation to server, OPC CLIENT PROGRAMs, which are sent, to be immediately returned to after operation requests and can carry out other
Operation, without waiting for the response of opc server.OPC CLIENT PROGRAMs are reinformed after opc server completes operation requests.Therefore,
Relative to synchronous communication, asynchronous communication it is more efficient, it is adaptable to many clients access the field of same opc server and mass data
Close.This client uses asynchronous communication meanses, realizes that server notifies the change of client data using call back function.
IndasOpcClient clients realize the function of data exchange middleware, and opc server is by the refreshing speed specified
Rate reads data from data source.If data change, call receiver interface member function OnDataChange () will
Data give client, client refreshes interface, while by RDC_WriteVar () function by the data transfer of change to number
According to storehouse DasRdb, database carries out write operation by device driver to terminal device.When terminal device data are changed,
Database notifies IndasOpcClient clients by call back function, and client passes through asynchronous write function WriteAsync20
() sends write data requests to server.Server passes through calling interface member function after the completion of operation
OnWriteComplete () notifies client to write data completion.
When structure more than use solve Escalator information island phenomenon, enter according to such as Fig. 2 flow
OK.
S0, start perform；
S1, the status signal transmission for judging whether to Escalator, jump to step S9 if not；Otherwise step is jumped to
S2；
S2, judge whether the status signal of Escalator sends to client, if then jumping to step S3, otherwise jumping
Go to step S6；
S3, the change information for gathering Escalator；
S4, conversion Escalator signal is can transformats；
S5, the Escalator signal after conversion sent to client, and notify client to complete the conversion of data and redirect
To step S9；
Data in S6, reading service device on Escalator state；
S7, delta data in server on Escalator is sent to client；
S8, send data to collection Escalator state at handled；
S9, determine whether to exit, if it is not, then step jumps to step S1, otherwise skip to step S10；
S10, end.
Specifically, when above-mentioned step by Fig. 1 structure to realize when, each step correspondence as under figure,
First in step 100, start to perform；
Step 101, judge whether server waits the asynchronous call of CLIENT PROGRAM, if it is not, showing that now simultaneously non-process is electric
The problem of detached island of information of staircase, then jump to step 109；
Step 102, if so, then judging whether to perform write operation, if it is not, then performing step 106；
Step 103, if so, then carrying out write operation to the data that DasRdb changes；
Step 104, client sends write data requests by asynchronous write function WriteAsync20 to server；
Step 105, server is notified after the completion of operation by calling interface member function OnWriteComplete ()
Client writes data completion, and jumps to step 109；
The data of step 106 reading service device change；
Data are given client by step 107 with receiver interface member function OnDataChange ()；
Step 108 client refreshes interface is while by RDC_WriteVar () function by the data transfer of change to data
Storehouse DasRdb, and continue executing with step 109；
Step 109 determines whether to exit, if it is not, then step jumps to step 101；
Step 110 is if so, then end operation.
Above-mentioned step 100 corresponds to step S0 to S10 respectively to step S110.
When the communication connection with Escalator is carried out using the method for the above, handed over because script can not be sent to track
The Escalator signal of logical comprehensive monitoring system is converted into the signal format that can be transmitted, and the status information of Escalator can be through
Cross conversion, being transformed into be sent at monitoring device, breach original Escalator can not by oneself state information asking outwards
Topic so that monitoring device can carry out long-range monitoring to the state of Escalator.
It these are only the specific embodiment of the invention, it is impossible to the scope of the present invention is limited with this, in the art
The equivalent change that those skilled in the art are made according to this creation, and change known to those skilled in that art, all should still it belong to
The scope that the present invention covers.
Claims (1)
1. a kind of method for solving urban track traffic Escalator information island, it is characterised in that comprise the following steps：
S0, start perform；
S1, the status signal transmission for judging whether to Escalator, jump to step S9 if not；Otherwise step S2 is jumped to；
S2, judge whether the status signal of Escalator sends to client, if then jumping to step S3；
S3, the change information for gathering Escalator；
S4, the status signal of Escalator is changed for can transformat；
S5, the status signal of the Escalator after conversion sent to client, and notify client to complete the conversion and jump of data
Go to step S9；
S9, determine whether to exit, if it is not, then step jumps to step S1, otherwise skip to step S10；
S10, end；
Also include：
When the step S2 judges that the status signal of Escalator is not sent to client, step S6 is jumped to；The step S6
For：Data in reading service device on Escalator state；Hereafter step S7 is jumped to；
S7, delta data in server on Escalator is sent to client；Hereafter step S8 is jumped to；
S8, send data to collection Escalator state at handled；Hereafter step S9 is jumped to；
The step S1 includes：Judge whether server waits the asynchronous call of CLIENT PROGRAM；
The step S2 includes：Judge whether to perform write operation；
The step S3 includes：Write operation is carried out to the data that DasRdb changes；
The step S4 includes：Client sends write data requests by asynchronous write function WriteAsync20 to server；
The step S5 includes：
Server notifies client writes data complete after the completion of operation by calling interface member function OnWriteComplete ()
Into；
The step S6 includes：The data of reading service device change；
The step S7 includes：With receiver interface member function OnDataChange () client is given by data；
The step S8 includes：The data transfer of change is simultaneously given by RDC_WriteVar () function in client refreshes interface
Database D asRdb.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868730A (en) * | 2012-08-24 | 2013-01-09 | 广州日滨科技发展有限公司 | Method and system for monitoring running states of elevator |
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| US20070106434A1 (en) * | 2005-11-07 | 2007-05-10 | Galbraith Robert E Ii | User interface for railroad dispatch monitoring of a geographic region and display system employing a common data format for displaying information from different and diverse railroad CAD systems |
| CN101963798B (en) * | 2010-06-29 | 2012-10-31 | 东华大学 | Embedded-type rail transit station equipment information collection method |
| CN103034489B (en) * | 2012-12-05 | 2016-03-23 | 中国电子科技集团公司第三十二研究所 | Be applied to the middleware system of track traffic signal security system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102868730A (en) * | 2012-08-24 | 2013-01-09 | 广州日滨科技发展有限公司 | Method and system for monitoring running states of elevator |
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