CN105323017B - Communication abnormality detection device, communication abnormality detection method and recording medium - Google Patents
Communication abnormality detection device, communication abnormality detection method and recording medium Download PDFInfo
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- CN105323017B CN105323017B CN201510373079.7A CN201510373079A CN105323017B CN 105323017 B CN105323017 B CN 105323017B CN 201510373079 A CN201510373079 A CN 201510373079A CN 105323017 B CN105323017 B CN 105323017B
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- 238000004891 communication Methods 0.000 title claims abstract description 198
- 238000001514 detection method Methods 0.000 title claims abstract description 36
- 230000005856 abnormality Effects 0.000 title claims abstract description 24
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000000630 rising effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000012360 testing method Methods 0.000 abstract description 8
- 230000007423 decrease Effects 0.000 description 9
- 238000003860 storage Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013179 statistical model Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Abstract
A kind of communication abnormality detection device etc. is provided, even if such as PROFIBUS communications can automatically be detected the exception of the communication line if not making the preparation of observation communication line always like that in standard specification.The test section (31) of communication abnormality detection device (7) observes master device (3) and the communication voltage from the communication line between device (51) always.Notification unit (33) is when communication voltage is less than setting value, and other than notifying the alarm, ID of the identification as the slave device of communication object is informed about to master device (3).Master device (3) shows maintenance warning that is abnormal and showing privileged site in display unit (15), and the display unit (23) of the slave device (5) determined by ID is made to be shown, to show maintenance advance notice.Even such as PROFIBUS is communicated as a result, maintenance can be also improved.
Description
Technical field
The present invention relates to communication abnormality detection device, communication abnormality detection method and programs, more particularly, to in master
The communication abnormality detection device etc. that device and multiple exceptions from the communication carried out between device are detected.
Background technology
In recent years, in order to control multiple electronic valve actuators (hereinafter referred to as " VA ".), it is communicated for example, by using PROFIBUS
System.In PROFIBUS communications, master device is connected in series with multiple VA and is communicated.In PROFIBUS communications, standard
The preparation for observing communication line always is not made in specification.The case where being communicated come with VA groups using such PROFIBUS
Under, dedicated analyzer and/or communication analysis device are regularly connected to monitor communication line.
Following content is described in patent document 1：In the system for being controlled valve etc., parameter next life is collected
At statistical model, to realize quality prediction and/or fault detect.
Existing technical literature
Patent document
1 Japanese Unexamined Patent Publication 2013-084251 bulletins of patent document
Invention content
Problems to be solved by the invention
But in the technology of patent document 1, to by communicating the parameter being collected into, each dress is evaluated using statistical model
The action set carries out quality prediction and/or fault detect.Communication line becomes the basis of the communication of each device, not directly to communication
The exception of line is detected.
Such as in PROFIBUS communications, communication voltage is because of the increase of routing resistance and/or respectively from the contact resistance of device
Increase and decay.If in a part, routing resistance and/or contact resistance increase, even on the upstream side than the position
The slave device of (master device side) can be communicated with communication voltage appropriate, be present in than the position downstream (master device
Opposite side) slave device be also likely to become the communication voltage after decaying, and become not communicated.Utilizing master device
When detecting such failure, in general, being judged as the failure of master device, live undertaker ties up by object of whole device
Shield, becomes huge burden.
Thus, the purpose of the present invention is to provide following communication abnormality detection devices etc., even if as such as PROFIBUS is logical
Letter does not make the preparation for observing communication line always like that in standard specification, also can automatically to the communication line it is abnormal into
Row detection.
The means used to solve the problem
1st viewpoint of the present application is a kind of communication system, is communicated between device with multiple in master device, tool
The standby communication abnormality detection device to being detected in master device and multiple exceptions from the communication carried out between device, it is described logical
Letter abnormal detector has：Detection unit, to the communication voltage between the master device and at least one said slave device
It is detected；And notification unit, it is smaller or expect that the communication voltage can become than setting voltage in the communication voltage
Than the setting voltage hour, to the master device notification alert information.
2nd viewpoint of the present application be in the communication system of the 1st viewpoint, it is the multiple to include from device：One or
Multiple 1st times of person is connect by communication line with the master device from device；With the 2nd time from device, via the described 1st
It is secondary to be communicated from device with the master device；The detection unit, by reading the master device with described 1st time from dress
The voltage value of rising or the decline of the rectangular wave in communication line between setting, to detect the communication voltage.
3rd viewpoint of the present application is the detection unit, to being used in the communication system of the 1st or the 2nd viewpoint
Identify that the identification information as the slave device of communication object is monitored that the notification unit is being examined together with the communication voltage
The communication voltage is measured to be the setting voltage or less or expect that the communication voltage can become than the setting voltage
Hour, other than the warning message, the identification letter of the communication object for determining the communication is informed about to the master device
Breath, the master device have communication unit, and the communication unit is by communicating the slave dress to being determined by the identification information
It sets and has been notified of warning message, said slave device has display unit, and the display unit has been notified of the police being notified
When accusing information, display has been notified of the warning message.
4th viewpoint of the present application is the notification unit in the communication system of the 1st to the 3rd any viewpoint, right
The communication voltage detected in the past and the communication voltage detected thereafter are compared, to judge whether the decaying of communication voltage is located
The master device notification alert is believed when the decaying of communication voltage is more than 1 setting range in the 1st setting range
Breath, and/or judge whether be in the 2nd setting range with the adjacent communication voltage difference from device, it is super in communication voltage difference
When crossing 2 setting range, to the master device notification alert information.
5th viewpoint of the present application is a kind of communication abnormality detection method, in master device and multiple between device
The exception of the communication of progress is detected, including：Detecting step, between the master device and at least one said slave device
Communication voltage is detected；And notifying process, it is smaller or expect the communication voltage than setting voltage in the communication voltage
It can become than the setting voltage hour, to the master device notification alert information.
6th viewpoint of the present application is a kind of program, for making computer be used as lower unit functions：Detection is single
Member is detected master device and at least one communication voltage from the communication between device；And notification unit, described
Communication voltage is smaller than setting voltage or expects that the communication voltage can become than the setting voltage hour, to the master
Device notification alert information.
In addition it is also possible to which the present application is interpreted as steadily to record the computer-readable of the program of the 6th viewpoint
Recording medium.
In addition, setting voltage, the 1st setting range, the 2nd setting range are stored in communication abnormality detection device and are had
Standby storage unit.
Invention effect
According to each viewpoint of the present application, in PROFIBUS communication systems etc., communication abnormality detection device is added, is led to
Letter abnormal detector is detected to master device and from the communication voltage in the communication line between device and declines to it always
Judged, though do not made in standard specification as a result, always observation communication line preparation if can always to master device with
It is detected and/or predicts from the generation of the decline failure of the communication voltage in the communication line between device.
In turn, according to the 2nd viewpoint, in slave device (the 1st time from device) and the main dress of a such as serial communication part like that
Set directly (that is, not via others from device) connection communicated and it is other from device (the 2nd time from device) via the
1 time from the case that device is communicated, by always to master device and the 1st communication voltage from the communication line between device
It is detected, the detection/prediction for the generation of communication voltage declined extremely can be carried out as communication system entirety.
In turn, according to the 3rd viewpoint, the slave device of the generation by determining the decline failure for detecting/predicting communication voltage,
The increased position for generating routing resistance and/or contact resistance can be readily determined.In turn, the knowledge for determining communication object
Other information is to be used in the information of communication, it may be said that is the information in imaginary space.Thus, by the way that display respectively is being arranged from device
Portion shows in the slave device communicated in the decline for detecting communication voltage and produces abnormal situation, live as a result,
Undertaker can be readily determined trouble location in the fault in-situ as real space.
In turn, according to the 4th viewpoint, using by detecting constantly to be detected this point to communication voltage always with
The communication voltage detected in the past is compared, or utilization is poor with the adjacent communication voltage from device, so as to high-precision
The reduction of degree ground prediction communication voltage.Thereby, it is possible to realize that prepared maintenance, inhibition do not expect by formulating maintenance project
Failure generation.Herein, certain from device it is adjacent from device be with the device from device direct communication, should from device via
This is adjacent to be communicated from device with master device or this adjacent is led to via this from device and master device from device
Letter.
Description of the drawings
Fig. 1 is the block diagram of an example of the structure of the communication system for the embodiment for showing the present application.
Fig. 2 is the flow chart of an example of the action for the communication system 1 for showing Fig. 1.
Fig. 3 is the chart for showing the communication voltage detected by the test section 31 of Fig. 1, and (a) is to indicate normal situation
Figure, (b) is the figure for indicating to produce abnormal situation.
Fig. 4 be show with the adjacent communication voltage difference between device square an example chart.
Fig. 5 is to show in communication abnormality detection device 7, the rising of the rectangular wave of monitoring communication voltage and read voltage value
The case where voltage value an example figure.
Reference sign
1 communication system, 3 master devices, 5 from device, 7 communication abnormality detection devices, 11 communication units, 13 monitoring units,
15 display units, 21 communication units, 23 display units, 25 control units, 31 test sections, 33 notification units, 35 storage parts
Specific implementation mode
Hereinafter, with reference to attached drawing, the embodiment of the present application is described.In addition, the embodiment of the present application
It is not limited to the following embodiments.
Embodiment
Fig. 1 is the block diagram of an example of the composition of the communication system for the embodiment for showing the present application.Communication system 1 has
It is standby：It is master device 3 (an example of " master device " of the application claim), multiple from device 51..., 5N(the application claim
An example of " from device ") (N is 2 or more natural number.Hereinafter, omitting subscript sometimes.) and (this of communication abnormality detection device 7
Apply for an example of " the communication abnormality detection device " of claim).
In Fig. 1, master device 3 and from device 5 be carry out PROFIBUS communications device, be carry out serial communication dress
It sets.Master device 3 with from device 51Directly (that is, not via others from device) is communicated (from device 51It is that the application right is wanted
An example of " the 1st time from device " asked, other is an example of the application claim " the 2nd time from device " from device 5.).
From device 51With master device 3 and from device 52Carry out direct communication.From device 5i(i is 2 or more and N-1 natural numbers below)
With from device 5i-1And 5i+1It is communicated.From device 5NWith from device 5N-1It is communicated.From device 51It is adjacent from device be from
Device 52.From device 5iIt is adjacent from device be from device 5i-1And 5i+1.From device 5NIt is adjacent from device be from device
5N-1。
Master device 3 has communication unit 11, monitoring unit 13 and display unit 15.Have communication unit 21, display unit from device 5
23 and control unit 25.Communication abnormality detection device 7 has test section 31, notification unit 33 and storage part 35.
The communication unit 11 of master device 3 is communicated between the communication unit 21 from device 5, and control is respectively from the dynamic of device 5
Make.Number (ID) for identification is had been assigned respectively from device 5.Master device 3 carries out between the slave device 5 determined by ID
Communication.In communication, include the information containing ID to determine communication object.Therefore, test section 31 is by examining ID
It surveys, is capable of detecting when the slave device as communication object.
It is electronic valve actuator (VA) from device 5, control unit 25 carries out valve control according to the instruction for carrying out autonomous devices 3
Deng.
The test section 31 of communication abnormality detection device 7 master device 3 and with master device 3 carry out direct communication slave device 51
Between communication line on detect communication voltage.The voltage that test section 31 passes through rising or the decline of the rectangular wave in reading communication
Value detects communication voltage (with reference to Fig. 5).Test section 31 by detect together communication in slave device 5 ID, to be determined as
The slave device 5 of communication object.
35 storage setting value of storage part (an example of " the setting voltage " of the application claim).It is logical if PROFIBUS
Letter, then carry out the communication under DC5V, setting value is for example set to 2.5V.In the communication voltage detected than setting value hour, lead to
Know that portion 33 notifies the decline for producing communication voltage to master device 3.At this point, notification unit 33 will together be notified from the ID of device 5
To master device 3.
In addition, storage part 35 stores the 1st setting range (an example of " the 1st setting range " of the application claim).
It is same from device, when the difference of this measured value and previous measured value is square more than 1 setting range, notification unit 33 will
Need to carry out important inspection notice to master device 3.At this point, notification unit 33 will together be notified from the ID of device 5 to master device 3.
In addition, storage part 35 stores the 2nd setting range (an example of " the 2nd setting range " of the application claim).
The difference of measured value and the adjacent measured value from device square more than 2 setting range when, notification unit 33 will need to carry out important
Check notice to master device 3.At this point, notification unit 33 will together be notified from the ID of device 5 to master device 3.
The maintenance that monitoring unit 13 can make display unit 15 show warning message and implement privileged site to live undertaker is warned
It accuses, and so that the display of display unit 23 by the ID slave devices 5 determined is produced exception using communication and show maintenance advance notice.
Live undertaker will determine the unstable position of communication as reference from the display of the display unit 23 of device 5, lead to its periphery
Letter circuit is safeguarded.Thereby, it is possible to improve maintenance.
Fig. 2 is the flow chart of an example of the action for the communication system 1 for showing Fig. 1.The detection of communication abnormality detection device 7
Portion 31 monitors communication voltage (step ST1).At this point, monitoring ID and voltage level.Next, it is determined whether detecting or predicting
The exception (step ST2) of communication voltage.As described above, for the exception of communication voltage, for example, notification unit 33 judges that this is surveyed
Definite value whether be more than setting value, or judge this measured value and previous measured value difference square whether more than the 1st set model
Enclose, or judge this measured value and the adjacent measured value from device difference square whether more than the 2nd setting range, to judge
Whether notification alert information.In turn, it is also contemplated that resume, also judge the necessity of replacement.If voltage level is no different
Often, then return to step ST1.
It is detected when drop detects under voltage to the output of monitoring unit 13 of master device 3 if voltage level has exception
ID and voltage decline warning (alarm) (step ST3).Monitoring unit 13 shows exception in display unit 15, and makes communication unit
11 pairs produce electric voltage exception (step ST4) by the notice of communication unit 21 of the ID slave devices 5 determined.It is generated being informed about
In the slave device of electric voltage exception, exception (step ST5) is produced in the display of display unit 23.Live undertaker can be by from device
The display of 5 display unit 23 come be readily determined detect it is abnormal from device 5, by by this centered on device 5 to periphery
Telecommunication circuit safeguarded, can easily repair voltage and decline abnormal (step ST6).Then, return to step ST1.
Fig. 3 is the chart for showing communication voltage, and (a) indicates normal situation, (b) indicates to produce abnormal situation.
In Fig. 3, in horizontal axis, show that the slave device of serial connection, the longitudinal axis are shown using master device and respectively from device successively from master device
The communication voltage that arrives of communication check.For communication voltage, when there are the branch line resistance variation of each VA, VA adjacent with downstream side
Compare, communication voltage declines sometimes, so other than several exceptions, in principle, communication voltage with via slave device
Increase and declines.It is normal at (a), it is integrally 2.5V or more.In the case where producing exception, certain is arrived from device
Until be 2.5V or more, but more than should after device just become 2.5V or less.Therefore, it is more likely that becoming not communicating.Its
In, it measures and there is unevenness, which is set to consider uneven threshold value, and it is low to become the possibility that can not be communicated completely.Cause
This abnormal produces communication voltage exception using communication to producing from device notice.For example, detecting that more are less than
In the case of the slave device of setting value, can at least it make highest from dress less than communication voltage value in setting value, detecting
Display communication voltage is set to decline.For example, communication voltage value in the slave device with communication voltage value 2.5V the following values can be made
It is highest to be shown from device, can also to according to the slave device until voltage value sequence to predetermined number from high to low into
Row is notified and is shown.Alternatively, it is also possible to make to be shown from device less than all of setting value.
Fig. 4 be show adjacent communication voltage difference square chart.Horizontal axis indicate from device, the longitudinal axis show with it is adjacent from
Square of the communication voltage difference of device.When the 2nd setting range is set as 0.02 or less, the value of the longitudinal axis slave dress bigger than 0.02
It sets 5 and inspects periodically object as next time.In Fig. 4, it can recognize that and such inspect periodically object.Equally, it is regularly surveying
The adjacent difference of the measured value obtained in fixed square and/or with the difference of previous measured value square in, be more than substantially by system
In the case of specified feasible value (such as 3*3=9<10, therefore in the case of 10 times or more), export warning message.
The example for the case where Fig. 5 shows the rising of the rectangular wave of monitoring communication voltage and reads voltage value.As shown in figure 5,
By monitoring the voltage level of the rectangular wave in communicating, communication voltage can be detected.
In addition, the present application is not limited to structure as Fig. 1, can also be such as tree exist like that it is multiple
The slave device being directly connected to master device 3, communication abnormality detection device 7 is in master device and is directly connected to multiple between device
Communication voltage is detected, it is declined and is detected.
Claims (5)
1. a kind of communication system is communicated with multiple between device in master device,
The communication system has different to the communication being detected in master device and multiple exceptions from the communication carried out between device
Normal detection device,
The communication abnormality detection device has：
Detection unit, the communication voltage between the master device and at least one said slave device are detected；With
Notification unit, in the communication voltage than setting voltage hour, to the master device notification alert information,
The notification unit,
The communication voltage detected in the past and the communication voltage detected thereafter are compared, to judge the decaying of communication voltage
Whether it is in the 1st setting range, when the decaying of communication voltage is more than 1 setting range, the master device is notified to warn
Information is accused, and/or
Judge whether be in the 2nd setting range with the adjacent communication voltage difference from device, is more than the described 2nd in communication voltage difference
When setting range, to the master device notification alert information.
2. communication system according to claim 1,
It is the multiple to include from device：One or more the 1st time from device, using communication line with the master device connect
It connects；With the 2nd time from device, communicated from device with the master device via described 1st time,
The detection unit, by read the master device and it is described 1st time from the rectangular wave in the communication line between device
The voltage value for rising or declining, to be detected to the communication voltage.
3. communication system according to claim 1 or 2,
The detection unit, to for identification as the identification information of the slave device of communication object together with the communication voltage into
Row monitoring,
The notification unit is detecting that the communication voltage is the setting voltage or less or expects the communication voltage
It can become than the setting voltage hour, other than the warning message, the master device is informed about for determining that this is logical
The identification information of the communication object of letter,
The master device has a communication unit, the communication unit by communication, to by the identification information determine from
Device has been notified of warning message,
Said slave device has a display unit, the display unit, be notified be notified of the warning message when, display has notified
The warning message.
4. a kind of communication abnormality detection method, to being examined in master device and multiple exceptions from the communication carried out between device
It surveys, including：
Detecting step, the communication voltage between the master device and at least one said slave device are detected；With
Notifying process, in the communication voltage than setting voltage hour, to the master device notification alert information,
In the notifying process,
The communication voltage detected in the past and the communication voltage detected thereafter are compared, to judge the decaying of communication voltage
Whether it is in the 1st setting range, when the decaying of communication voltage is more than 1 setting range, the master device is notified to warn
Information is accused, and/or
Judge whether be in the 2nd setting range with the adjacent communication voltage difference from device, is more than the described 2nd in communication voltage difference
When setting range, to the master device notification alert information.
5. a kind of recording medium, record has following program, and the program is for making computer be used as lower unit functions：
Detection unit is detected master device and at least one communication voltage from the communication between device；With
Notification unit, in the communication voltage than setting voltage hour, to the master device notification alert information,
The notification unit,
The communication voltage detected in the past and the communication voltage detected thereafter are compared, to judge the decaying of communication voltage
Whether it is in the 1st setting range, when the decaying of communication voltage is more than 1 setting range, the master device is notified to warn
Information is accused, and/or
Judge whether be in the 2nd setting range with the adjacent communication voltage difference from device, is more than the described 2nd in communication voltage difference
When setting range, to the master device notification alert information.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-135601 | 2014-07-01 | ||
| JP2014135601A JP6370132B2 (en) | 2014-07-01 | 2014-07-01 | Communication abnormality detection device, communication abnormality detection method and program |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105323017A CN105323017A (en) | 2016-02-10 |
| CN105323017B true CN105323017B (en) | 2018-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510373079.7A Active CN105323017B (en) | 2014-07-01 | 2015-06-30 | Communication abnormality detection device, communication abnormality detection method and recording medium |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6370132B2 (en) |
| KR (1) | KR101613100B1 (en) |
| CN (1) | CN105323017B (en) |
| TW (1) | TWI566065B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102244169B1 (en) * | 2018-04-19 | 2021-04-23 | 미쓰비시덴키 가부시키가이샤 | Apparatus, method for specifying abnormal equipment, and computer program stored in a recording medium |
| CN108705948A (en) * | 2018-05-31 | 2018-10-26 | 宁波市鄞州智伴信息科技有限公司 | Communication control method for new-energy automobile charging navigation |
| CN109059958A (en) * | 2018-05-31 | 2018-12-21 | 宁波市鄞州智伴信息科技有限公司 | Accurate check system for new-energy automobile charging navigation |
| CN108749611A (en) * | 2018-05-31 | 2018-11-06 | 宁波市鄞州智伴信息科技有限公司 | Accurate method of calibration for new-energy automobile charging navigation |
| CN108413979A (en) * | 2018-05-31 | 2018-08-17 | 宁波市鄞州智伴信息科技有限公司 | New-energy automobile charging air navigation aid |
| CN108995544A (en) * | 2018-05-31 | 2018-12-14 | 宁波市鄞州智伴信息科技有限公司 | Communication control system for new-energy automobile charging navigation |
| CN108759850A (en) * | 2018-05-31 | 2018-11-06 | 宁波市鄞州智伴信息科技有限公司 | New-energy automobile charging navigation system |
| CN114338264B (en) * | 2021-12-17 | 2023-01-24 | 珠海格力电器股份有限公司 | Bus communication quality control method and system, air conditioning unit and electronic equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| TWI566065B (en) | 2017-01-11 |
| JP6370132B2 (en) | 2018-08-08 |
| TW201602747A (en) | 2016-01-16 |
| KR101613100B1 (en) | 2016-04-20 |
| JP2016015562A (en) | 2016-01-28 |
| CN105323017A (en) | 2016-02-10 |
| KR20160003549A (en) | 2016-01-11 |
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