CN107147552A - The method and apparatus that letter reading is returned in a kind of remote control - Google Patents
The method and apparatus that letter reading is returned in a kind of remote control Download PDFInfo
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- CN107147552A CN107147552A CN201710283963.0A CN201710283963A CN107147552A CN 107147552 A CN107147552 A CN 107147552A CN 201710283963 A CN201710283963 A CN 201710283963A CN 107147552 A CN107147552 A CN 107147552A
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- 230000005540 biological transmission Effects 0.000 claims description 13
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- 238000005516 engineering process Methods 0.000 description 3
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Classifications
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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
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1685—Details of the supervisory signal the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal
-
- 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
- H04L2012/40228—Modbus
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Abstract
The invention discloses the method and apparatus that letter reading is returned in a kind of remote control, methods described includes：Master device sends guidance command to slave station equipment；Reach the guidance command it is corresponding return letter read time delay when, the master device to the slave station equipment send remote control return letter ask, letter is returned with the remote control for obtaining the slave station equipment.By the embodiment of the present invention can realize remote control return letter read access time it is unrelated with number of devices, it is unrelated with poll table size, realize delay less, the remote control of the small fast and stable of fluctuation return letter, so as to improve automatization level.
Description
Technical field
The present invention relates to industrial automation, the method and apparatus that letter reading is returned in espespecially a kind of remote control.
Background technology
Polling protocol is the wide variety of communication protocol of industrial automation, common industrial automation poll association
View is such as：Modbus, IEC60870-5-101, IEC60870-5-103 etc., these agreements have become current industry standard,
The extensive use of automated communication field.Polling protocol is generally also bus-type (bus) agreement, and using master, (Master is also referred to as communication
Main website)-from (Slave, also referred to as slave station) technology, i.e., in synchronization, (inquiry, is also named only one main equipment energy initial transmission
Request, successively inquiry is referred to as poll), slave unit inquires about the data provided according to main equipment and makes respective reaction.Main equipment can be single
Solely communicate, sometimes, can also be communicated with broadcast mode and all slave units with slave unit.If individually communication, slave unit returns to one
Message is as response, if being inquired about with broadcast mode, does not then make any response.
As shown in figure 1, master device is when preparing new request once, at the beginning can priority check whether have guidance command
Need to send, if so, then obtaining remote information and generating remote control message, send remote control message and subsequent start-up reception time-out is fixed
When device, if having successfully received slave station equipment response in time-out time, show that this remote control is sent successfully, but this can only say
Bright slave station equipment has been successfully received order, if successfully also need to subsequent master device by send request read it is true
Letter point is returned in positive remote control can just find out.Because remote processing is usually that asynchronous response, i.e. slave station equipment are received after guidance command, and
Check that current whether meet performs condition needed for remote control, then first master device can be given to send corresponding response, then can just held
Row remote control, if remote control is successful, the information updating that corresponding remote control can be returned to letter point supplies master device into slave station data field
Poll updates, only when master device is polled to the information, and master device can know that remote control is really successful, there is reading
Remote control return letter time delay length, obtain return the letter moment time fluctuation scope it is big the problem of.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of method that letter is returned in remote control, reading remote control can be shortened
Return the time delay of letter, reduce and return the time fluctuation scope at letter moment, realize remote control return the read access time of letter and number of devices without
Close, it is unrelated with poll table size.
In order to reach the object of the invention, the invention provides a kind of method that letter reading is returned in remote control, including：
Master device sends guidance command to slave station equipment；
Reach the guidance command it is corresponding return letter read time delay when, the master device is sent out to the slave station equipment
Send remote control to return letter request, letter is returned with the remote control for obtaining the slave station equipment.
In order to reach the object of the invention, present invention also offers the device that letter reading is returned in a kind of remote control, set applied to main website
It is standby, including：
First sending module, for sending guidance command to slave station equipment；
Second sending module, for reach the guidance command it is corresponding return letter read time delay when, the main website is set
It is standby to return letter request to slave station equipment transmission remote control, letter is returned with the remote control for obtaining the slave station equipment.
Compared with prior art, the embodiment of the present invention includes：Master device sends guidance command to slave station equipment and started
Timing；Reach the guidance command it is corresponding return letter read time delay when, the master device is sent to the slave station equipment
Letter request is returned in remote control, and letter is returned with the remote control for obtaining the slave station equipment.The embodiment of the present invention is directed to the remote control using prior art
Method occur number of devices is more, polling list polling table is bigger, read the time delay longer shortcoming for returning letter, be optimized, it is distant
The read access time and number of devices that letter is returned in control are completely irrelevant, completely irrelevant with poll table size, realize delay less, fluctuate it is small fast
Letter is returned in the stable remote control of speed, and then lifts automatization level.
Further, time delay is read by configuring the corresponding letter that returns of each guidance command, can be actual according to equipment
Situation is corresponding to each guidance command to be returned letter and reads delay and precisely configured, and improves the reading efficiency that letter is returned in remote control.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by specification, rights
Specifically noted structure is realized and obtained in claim and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used for providing further understanding technical solution of the present invention, and constitutes a part for specification, with this
The embodiment of application is used to explain technical scheme together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is the existing poll flow chart containing remote control；
Fig. 2 is the polling list polling table schematic diagram of polling protocol；
Fig. 3 returns the method flow diagram of letter reading for the remote control of the embodiment of the present invention；
Fig. 4 applies the poll flow chart containing remote control of example for the present invention；
Fig. 5 returns the schematic device of letter reading for the remote control of the embodiment of the present invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with accompanying drawing to the present invention
Embodiment be described in detail.It should be noted that in the case where not conflicting, in the embodiment and embodiment in the application
Feature can mutually be combined.
Can be in the computer system of such as one group computer executable instructions the step of the flow of accompanying drawing is illustrated
Perform.And, although logical order is shown in flow charts, but in some cases, can be with suitable different from herein
Sequence performs shown or described step.
Herein, letter is returned in remote control, and implication is automated system straighforward operation (execution point/conjunction etc.) displacement improving backhaul,
That is the remote control result feedback information of slave station equipment；Letter point is returned in remote control, refers to slave station equipment to anti-needed for the result of execution guidance command
The logic unit (for example, dividing/conjunction state) of feedforward information.When slave station equipment receives the guidance command of master device, this is performed distant
After control order, remote control is returned into the information updating of letter point to slave station data field, slave station equipment, which receives master device and sends remote control, to be returned
During letter request, Data Area data is inquired about, returning to carrying remote control in response message, the response message to master device returns letter.
In different polling protocols, the call of technical term may be different, can be read all in polling protocol
The request of upstream data is taken to be referred to as three distant requests (remote signalling, remote measurement and remote pulse), three distant requests of all devices collect, can be with
Referred to as polling list polling table.In the prior art, remote control is returned letter point and just covered in polling list polling table (as shown in Fig. 2 asking total in note polling list polling table
Number is N) in, this, which contains remote control and returns the request (hereinafter referred to as this request be Rx) of letter point, is generally exactly one and common asks
Ask, and other requests are a priority, must all wait in line poll.In other words, send after guidance command, master device is still
The request for needing to send next time can be obtained from polling list polling table successively according to poll order before.So, main website is sending distant
Control orders the latter fluctuation range until obtaining the interval time (being designated as Ts) that letter is returned in remote control from main website to be TsIt is minimum~TsIt is maximum, its
In,
TsIt is minimum=equipment remote-control successful time (being designated as Tx below)+remote control is returned after letter request is sent until receiving response institute
The time (being designated as Tr below) of experience；Wherein, Tx implication is that master device transmission remote control is latter until slave station equipment is to equipment
Remote control in data field returns letter point and puts value success the undergone time；
TsIt is maximum=Tx+ (N × requesting interval)+Tr；
Wherein, the typical Tr times of a TCP LAN are 10 milliseconds, and therefore, Tr can be ignored, so, TsIt is minimum
≈ Tx, TsIt is maximum≈ Tx+ (N × requesting interval).
Ts desired value is：Tx+ (N × requesting interval/2).
Exemplified by being communicated with serial ports Modbus RTU (RemoteTerminalUnit, remote-terminal unit), one typical
Access example：One serial ports accesses 10 slave station equipments, and each slave station equipment has 6 requests, and the requesting interval time is 100 millis
Second, then request sum is N=10 × 6=60, (N × requesting interval/2)=60 × 100/2 milliseconds=3 seconds, i.e. Ts desired values
It it is Tx+3 seconds, the worst to need Tx+6 seconds, fluctuation range is Tx~Tx+6 seconds.
Industrial automation, an important indicator for weighing automatization level height is exactly remote control feedback performance, it is clear that
Remote control feedback index Ts above is somewhat slow, and the speed of feedback need to also be with fortune (fluctuation range is big), it is impossible to definitely
Prediction in advance.Moreover, number of devices is more, polling list polling table is bigger, the letter that returns of reading postpones the fluctuation model that the letter moment is returned in longer, acquisition
Enclose bigger.
The embodiment of the present invention be directed to using the remote control thereof of prior art occur number of devices is more, polling list polling table is bigger,
The Ts shortcoming that delay is longer, the letter moment is returned in acquisition fluctuation range is bigger, is targetedly optimized.
As shown in figure 3, the method that letter reading is returned in the remote control of the embodiment of the present invention, can be applied to polling protocol, including：
Step 101, master device sends guidance command to slave station equipment；
Step 102, when reaching that the guidance command is corresponding to be returned letter and read time delay, the master device to it is described from
Station equipment sends remote control and returns letter request, and letter is returned with the remote control for obtaining the slave station equipment.
Wherein, after step 101, the guidance command is sent if the slave station equipment sends response message to master device
Success；The guidance command sends failure if the response message that master device time-out does not receive the slave station equipment.
Can when guidance command is sent timing, can also (master device connects when the guidance command is sent successfully
Receive response message) start timing.
Wherein, generally using master device to slave station equipment transmission guidance command and by the way of starting timing, when using this
During the mode of kind, if the guidance command sends failure, the master device resends the guidance command and restarted
Timing.
Can be pre-configured with each guidance command it is corresponding return letter read time delay, it is described return letter read time delay with
Each the corresponding slave unit execution action duration of guidance command is related.
After step 102 is performed, letter response message, institute are returned in the remote control that the master device receives the slave station equipment transmission
State remote control return in letter response message carry remote control return letter.
If letter is returned in the remote control, request sends failure, resends the remote control and returns letter request.If master device surpasses
Letter response message is returned in the remote control that Shi Wei receives the slave station equipment, then the remote control returns letter request and sends failure.
As shown in figure 4, be the poll flow chart containing remote control of present invention application example, including：
Step 201, determine whether that guidance command needs transmission, if so, then performing step 202, if not having, perform step
Rapid 203；
Wherein, guidance command is high priority order, so first determining whether that guidance command needs transmission；
Step 202, remote information is obtained, step 204 is performed；
Step 203, a request is successively read from polling list polling table；
Step 204, message is generated；
Step 205, send message and start overtime timer；
In this step, if the message sent is guidance command, also starts remote control and return letter timer；
Step 206, judge whether message is properly received, if the overtime timer time is not to receiving slave station equipment also
Response, then it represents that be not successfully received, performs step 207, if being properly received the response of slave station equipment, performs step 208；
Step 207, timeout treatment is performed, according to implementation strategy, it may be possible to resend message, or no longer send out again
Send, perform step 209；
Step 208, the data received are handled；
Step 209, prepare to send next time；
Step 210, determine whether that remote control returns letter request and needs to send, if so, then performing step 211, if not having, hold
Row step 212；
Wherein, remote control is returned letter timer periods and arrived, and indicates that remote control returns letter request and needs to send；And letter request is returned in remote control
It is high priority order, so before the request in polling list polling table is sent, first sending remote control and returning letter request；
Step 211, obtain remote control and return letter information, perform step 213；
Step 212, a request is successively read from polling list polling table；
Step 213, message is generated；
Step 214, send message and start overtime timer；
Step 215, judge whether message is properly received, if the overtime timer time is not to receiving slave station equipment also
Response, then it represents that be not successfully received, performs step 216, if being properly received the response of slave station equipment, performs step 217；
Step 216, timeout treatment is performed, according to implementation strategy, it may be possible to resend message, or no longer send out again
Send, perform step 218；
Step 217, the data received are handled；
Step 218, prepare to send next time.
It should be noted that above-mentioned flow chart is in order to represent first to send guidance command, letter request is returned in rear transmission remote control, so
It is divided into two parts (step 201~209 and step 210~218) to be indicated；In actual applications, step 201~209 and step
Rapid 210~218 can merge, i.e., when each flow is performed, and can first carry out and determine whether that remote control returns letter request and needs to send,
If so, then obtaining remote control returns letter information, if it is not, determining whether that guidance command needs transmission, if so, then obtaining
Remote information, if it is not, obtaining a request from polling list polling table, performs step 204~209 afterwards；Or, each flow
During execution, it can first carry out and determine whether that guidance command needs transmission, if so, remote information is then obtained, if it is not,
Determine whether that remote control returns letter request and needs to send, if so, then obtaining remote control returns letter information, if it is not, from polling list polling table
It is middle to obtain a request, step 204~209 are performed afterwards.In addition, when sending guidance command every time, starting remote control and returning letter timing
Device.If guidance command is not properly received, the guidance command is resend, and restarts remote control and returns letter timer.If distant
Control is returned letter request and is not properly received, then resends the remote control and return letter request.Letter request is returned in guidance command and remote control can be with
Maximum number of retransmissions is set, if sending times are equal to maximum number of retransmissions, failure are likely to occur, no longer retransmit, can point out
The information such as alarm.
In embodiments of the present invention, letter request is returned in the remote control, both can automatically be sent, and also might be used by the driving of master device
Artificially or automatically to be sent by configuration by host computer (such as man-machine interface).
In embodiments of the present invention, the letter reading time delay of returning of each guidance command can precisely be configured, is matched somebody with somebody
Tx (equipment remote-control successful time) can be slightly larger than when putting.Wherein, Tx is related to the acting characteristic of slave station equipment, such as, and one
The conjunction action of individual switch, which may need 100 milliseconds, to be completed, and the transfer of a switch is made then need 500 milliseconds, though
So each guidance command return letter read time delay may be different, but these values can be determined in advance, and
These values will not can produce big change with operation, i.e., can in advance determine completely and return letter test according to each remote control
Value returned corresponding to each remote control the time delay configuration of letter request.I.e.：Can set return letter read time delay be remote control
Corresponding slave unit execution action duration is ordered to add preset duration, the preset duration can be a fixed short period,
Such as 100 milliseconds.
Still by taking previous example as an example：One serial ports accesses 10 slave station equipments, and each slave station equipment has 6 requests, asks
Interval time is 100 milliseconds (being designated as T1), it is assumed that T0=200 milliseconds, then request sum is N=10 × 6=60.
When returning letter flow journey using the remote control of prior art：(N × requesting interval/2)=60 × 100/2 milliseconds=3 seconds, Ts phases
Prestige value is+T0=3.2 seconds 3 seconds, the worst to need Ta+6=6.2 seconds, and Ts fluctuation range is up to 200~6200 milliseconds！
Using the embodiment of the present invention technology when, it is assumed that certain remote control be configured with it is corresponding return letter request, and configure return
It is 300 milliseconds (T0a being designated as, more than Tx) that letter, which reads time delay, Ts scope be significantly reduced into T0a~(T0a+T1) millisecond=
300~400 milliseconds.
For example, if a circuit of subway there are 46 stations, sequence power-on and order is needed to power off daily, with order
Exemplified by power-off, complete 46 website power-off using art methods and take around 6 minutes, and use the side of the embodiment of the present invention
Method, then about only need to 30 seconds, greatly improves power-off efficiency, saves power-off time.
It was found from upper description, it is completely irrelevant with number of devices that the method for the embodiment of the present invention realizes Ts, big with polling list polling table
It is small completely irrelevant, Ts is not only effectively shortened, and can be optimal Ts actual fluctuation range.Under universal serial bus,
When the equipment of access is more, polling list polling table is bigger, the advance of the present invention is highlighted.
As shown in figure 5, returning the schematic device of letter reading for the remote control of the embodiment of the present invention, the device is set applied to main website
It is standby, including：
First sending module 31, for sending guidance command to slave station equipment；
Second sending module 32, for reach the guidance command it is corresponding return letter read time delay when, to it is described from
Station equipment sends remote control and returns letter request, and letter is returned with the remote control for obtaining the slave station equipment.
Alternatively, the device also includes：
Configuration module 33, reads time delay for being pre-configured with the corresponding letter that returns of each guidance command, described to return letter reading
Take time delay slave unit execution action duration corresponding to each guidance command related.
It is described that to return letter to read time delay be that guidance command corresponding slave unit execution action duration adds preset duration.
Alternatively, first sending module 31, is further used for sending guidance command to slave station equipment and starts timing；
If the guidance command sends failure, resend the guidance command and restart timing.
Alternatively, second sending module 32, sends failure, again if being further used for the remote control and returning letter request
Send the remote control and return letter request.
In summary, in the embodiment of the present invention, the transmission that letter request is returned after guidance command is sent, is embodied not only in conventional
In polling list polling table, specific remote control can also be associated, so, when straighforward operation, you can the quick reading flow of letter is returned in triggering remote control
Journey (this patent), so as to realize that letter is returned in the remote control of no-delay, pulsation-free fast and stable, and then lifts automatization level.
Although disclosed herein embodiment as above, described content be only readily appreciate the present invention and use
Embodiment, is not limited to the present invention.Technical staff in any art of the present invention, is taken off not departing from the present invention
On the premise of the spirit and scope of dew, any modification and change, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of method that letter reading is returned in remote control, it is characterised in that including：
Master device sends guidance command to slave station equipment；
Reach the guidance command it is corresponding return letter read time delay when, the master device to the slave station equipment send it is distant
Letter request is returned in control, and letter is returned with the remote control for obtaining the slave station equipment.
2. according to the method described in claim 1, it is characterised in that
It is pre-configured with the corresponding letter that returns of each guidance command to read time delay, the letter that returns reads time delay and each remote control
Order corresponding slave unit execution action duration related.
3. method according to claim 2, it is characterised in that
It is described that to return letter to read time delay be that guidance command corresponding slave unit execution action duration adds preset duration.
4. according to the method described in claim 1, it is characterised in that
The master device is in the step of slave station equipment transmission guidance command, and the master device sends remote control to slave station equipment
Order and start timing；
The master device is sent to slave station equipment after guidance command, and methods described also includes：If the guidance command is sent
Failure, then the master device resends the guidance command and restarts timing.
5. the method according to any one in Claims 1 to 4, it is characterised in that the master device is to the slave station
Equipment transmission remote control is returned after letter request, in addition to：
If the remote control returns letter request and sends failure, the master device resends the remote control and returns letter request.
6. the device of letter reading is returned in a kind of remote control, applied to master device, it is characterised in that including：
First sending module, for sending guidance command to slave station equipment；
Second sending module, for reach the guidance command it is corresponding return letter read time delay when, the master device to
The slave station equipment sends remote control and returns letter request, and letter is returned with the remote control for obtaining the slave station equipment.
7. device according to claim 6, it is characterised in that also include：
Configuration module, reads time delay, the letter that returns reads delay for being pre-configured with the corresponding letter that returns of each guidance command
Time, slave unit execution action duration corresponding to each guidance command was related.
8. device according to claim 7, it is characterised in that
It is described that to return letter to read time delay be that guidance command corresponding slave unit execution action duration adds preset duration.
9. device according to claim 6, it is characterised in that
First sending module, is further used for sending guidance command to slave station equipment and starts timing；If the remote control life
Order sends failure, then resends the guidance command and restart timing.
10. the device according to any one in claim 6~9, it is characterised in that
Second sending module, sends failure if being further used for the remote control and returning letter request, resends the remote control
Return letter request.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611008387.0A CN106656704A (en) | 2016-11-16 | 2016-11-16 | Modbus protocol remote control result feedback information reading method and device |
| CN2016110083870 | 2016-11-16 |
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| Publication Number | Publication Date |
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| CN107147552A true CN107147552A (en) | 2017-09-08 |
| CN107147552B CN107147552B (en) | 2020-08-07 |
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| CN201611008387.0A Pending CN106656704A (en) | 2016-11-16 | 2016-11-16 | Modbus protocol remote control result feedback information reading method and device |
| CN201710283963.0A Active CN107147552B (en) | 2016-11-16 | 2017-04-26 | Method and device for remotely controlling return letter reading |
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| CN111130970A (en) * | 2019-12-31 | 2020-05-08 | 深圳市无眼界科技有限公司 | Communication method based on modbus communication protocol |
| CN112261512B (en) * | 2020-12-07 | 2021-03-12 | 北京和利时系统工程有限公司 | Master station remote control method, device, storage medium and equipment of unbalanced polling protocol |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163371A (en) * | 2011-04-12 | 2011-08-24 | 丽水市海威光控科技有限公司 | System and method for remotely controlling tunnel indicator boards |
| CN102324793A (en) * | 2011-10-11 | 2012-01-18 | 航天科工深圳（集团）有限公司 | Method and system for realizing a plurality of virtual power distribution terminals |
| CN103513962A (en) * | 2012-06-29 | 2014-01-15 | 上海宝信软件股份有限公司 | Electric power SCADA parallel control method based on minimal machine |
| CN104392102A (en) * | 2014-01-08 | 2015-03-04 | 国家电网公司 | Automatic extraction and calculation method for online monitoring indexes of relaying protection equipment |
| CN104486188A (en) * | 2014-11-18 | 2015-04-01 | 深圳达实智能股份有限公司 | Method and setting device for setting receiving and sending detached threads |
| CN104991530A (en) * | 2015-05-19 | 2015-10-21 | 航天科工深圳（集团）有限公司 | Communication method based on CAN bus, and power distribution terminal |
| CN105007209A (en) * | 2015-06-04 | 2015-10-28 | 烟台东方威思顿电气股份有限公司 | RS485-based polling communication method |
| US20160070534A1 (en) * | 2008-04-04 | 2016-03-10 | Microsoft Technology Licensing, Llc | Techniques to remotely manage a multimedia conference event |
| CN105958642A (en) * | 2016-05-20 | 2016-09-21 | 中山市厚源电子科技有限公司 | Transformer substation automatic system real-time simulation device and test system thereof |
-
2016
- 2016-11-16 CN CN201611008387.0A patent/CN106656704A/en active Pending
-
2017
- 2017-04-26 CN CN201710283963.0A patent/CN107147552B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160070534A1 (en) * | 2008-04-04 | 2016-03-10 | Microsoft Technology Licensing, Llc | Techniques to remotely manage a multimedia conference event |
| CN102163371A (en) * | 2011-04-12 | 2011-08-24 | 丽水市海威光控科技有限公司 | System and method for remotely controlling tunnel indicator boards |
| CN102324793A (en) * | 2011-10-11 | 2012-01-18 | 航天科工深圳（集团）有限公司 | Method and system for realizing a plurality of virtual power distribution terminals |
| CN103513962A (en) * | 2012-06-29 | 2014-01-15 | 上海宝信软件股份有限公司 | Electric power SCADA parallel control method based on minimal machine |
| CN104392102A (en) * | 2014-01-08 | 2015-03-04 | 国家电网公司 | Automatic extraction and calculation method for online monitoring indexes of relaying protection equipment |
| CN104486188A (en) * | 2014-11-18 | 2015-04-01 | 深圳达实智能股份有限公司 | Method and setting device for setting receiving and sending detached threads |
| CN104991530A (en) * | 2015-05-19 | 2015-10-21 | 航天科工深圳（集团）有限公司 | Communication method based on CAN bus, and power distribution terminal |
| CN105007209A (en) * | 2015-06-04 | 2015-10-28 | 烟台东方威思顿电气股份有限公司 | RS485-based polling communication method |
| CN105958642A (en) * | 2016-05-20 | 2016-09-21 | 中山市厚源电子科技有限公司 | Transformer substation automatic system real-time simulation device and test system thereof |
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| CN106656704A (en) | 2017-05-10 |
| CN107147552B (en) | 2020-08-07 |
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