CN104126311B - Fault detection method and the secondary terminal station for being used in this method - Google Patents
Fault detection method and the secondary terminal station for being used in this method Download PDFInfo
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- CN104126311B CN104126311B CN201280070276.6A CN201280070276A CN104126311B CN 104126311 B CN104126311 B CN 104126311B CN 201280070276 A CN201280070276 A CN 201280070276A CN 104126311 B CN104126311 B CN 104126311B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/70—Arrangements in the main station, i.e. central controller
- H04Q2209/75—Arrangements in the main station, i.e. central controller by polling or interrogating the sub-stations
- H04Q2209/753—Arrangements in the main station, i.e. central controller by polling or interrogating the sub-stations where the polling of the sub-stations is synchronous
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- Computer Networks & Wireless Communication (AREA)
- Selective Calling Equipment (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
It can be monitored in signal transmission system in the control carried out data transmission by transmission synchronization method it is an object of the present invention to provide a kind of, even if a substation either is only connected in output section or input unit, also can in main website side determine output section and input unit failure fault detection method and using the secondary terminal station of this method.In the several substations being connect with main website with common data signal line, using scheduled other substations as base station, and obtained relative to the control data of base station or the monitoring data sent out from the base station as reference data from the transmission signal.Next, by the variation of the change direction specified by the reference data, obtain the time relative to the output data of output section corresponding to substation itself or until the input unit corresponding to the substation itself obtains change direction specified by input data, give obtaining as interval time, which is compared to scheduled critical value.
Description
Technical field
The present invention is about a kind of fault detection method and is used in the secondary terminal station of this method, ties up to and is connected to control unit
Main website and several output sections and input unit or several controlled devices corresponding to signal wire between several substations give
Save wiring and be attached with common data signal line and by transmission synchronization method that transmission frequency synchronizes etc. with into
In the control monitoring signal transmission system of the transmission of row data, the failure of output section and input unit is detected.Furthermore it is so-called
Output section is to act in response to the instruction in control unit, is equivalent to actuator (actuator), stepper motor (stepping
Motor), solenoid (solenoid), solenoid valve, relay (relay), thyristor (thyristor) etc..On the other hand, institute
Meaning input unit is that the information for being relevant to output section is sent to control unit, is equivalent to such as reed switch (reed
Switch), the various sensors such as microswitch (microswitch), push switch, optoelectronic switch.And controlled device is with defeated
Portion and input unit are constituted out object and be referred to as.
Background technique
In the control system with control unit and several output sections and input unit or several controlled devices, reduction is matched
The quantity of line, i.e., so-called province's wiring are widely implemented.Therefore, for general province's wiring method, replace from number
The connection side arranged side by side that the signal wire that a output section and input unit or controlled device extend respectively is directly connected to control unit
Method, relatively and by the main website and number of the conversion function that will have (parallel) signal arranged side by side and serial (serial) signal
A substation is respectively connected to control unit, several output sections and input unit or several controlled devices, and main website with it is several
The method of data transmit-receive is carried out with serial signal to be widely used by common data signal line between substation.
It realizes when saving wiring, in the state of being connected with multiple substations, if output section, defeated can not be recognized in control unit side
Enter the specific situation in portion or the generation of controlled device failure, it just must be for being separated by the far output section of the control unit, input
Portion or controlled device check (check) one by one, so that when needing more multitask on identification of defective position.
Therefore, the applicant's once motion goes out to be used as to give substation and input unit and output section specifically in control unit side
The system of specific disconnection fault out, that is, Japanese Unexamined Patent Publication 2011-114449 bulletin opens the remote patch shown and checks system.This
Remote patch checks that system monitors in signal transmission system as in the control with single control unit Yu several controlled devices,
The common data signal line of wiring is saved between the main website interconnected and substation in Yi Jing, is provided with and twocouese simultaneous transmission
The control monitoring data area that is constituted of control data (output data) and monitoring data (input data) for different management
Data area, the management data area are the connection data comprising showing wiring state.Also, it connects in data, and becomes energy
As identification short circuit information, disconnection information and normal information person.It is therefore not necessary to which the input data (monitoring data) for reducing signal is held
Amount, and can readily confirm the Wiring connected state between substation itself or substation and input unit or substation and output section.
Again in Japanese Unexamined Patent Publication 2006-331449 bulletin, disclose a seed stations (slave), the substation by with master
Stand included by output (OUT) data of serial communication between (master unit) output equipment (output section) is connected it is defeated
The function that start time information when the connection (ON) of (OUT) terminal or cutting (OFF) state are change out is obtained；It will be defeated
Enter the intermission letter when connection (ON) or cutting (OFF) Status Change of input (IN) terminal that equipment (input unit) is connected
Cease the function of being obtained；And given according to the running time that start time information and intermission information calculate output equipment
Calculate computing function.By this substation (slave), the running time of output equipment or input equipment can be found out, by by its
Compared with giving with the set information of the normal range (NR) to recognize output equipment or input equipment, and it can judge output equipment
Or whether input equipment is normal, or whether approach superseded replacement period etc..
Prior art document
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2011-114449 bulletin
Patent document 2: Japanese Unexamined Patent Publication 2006-331449 bulletin
However, in seeking substation in the prior art method of the actuation time of output section and input unit, have be connected to it is defeated
Out at the beginning of output (OUT) terminal in portion information and be connected to input unit input (IN) terminal dwell time both information
Acquirement be difficult situation.That is, in the case where being connected with output section and input unit the two in a substation, although
Time started information is summarized in same substation with intermission information, but for there was only output section or only input unit company
The substation connect is typically only capable to obtain the information of one of them.Although having consider that the output section of corresponding relationship will be connected to individually
Method between the substation of input unit directly to receive and send messages, but so become so-called instruction (command) and pass
Transmission method is difficult to use in the control monitoring signal transmission system for executing data transmission by transmission synchronization method.
Summary of the invention
The purpose of the present invention is the secondary terminal station for being to provide a kind of fault detection method and being used in this method, is tied up to
In control monitoring signal transmission system, it will be connected to the main website of control unit, and corresponds to several output sections, input unit and controlled
Several substations of device are connected with common data signal line, to carry out data transmission by transmission synchronization method, even if one
Substation either is only connected in output section or input unit, also can determine the failure of output section and input unit in main website side.
Fault detection method of the invention, for apply to a control monitor signal transmission system, wherein a main website with it is several
Substation is carried out data transmission with a common data signal line connection by a transmission synchronization method, its main feature is that, failure inspection
Survey method: a management data area is set in the transmission signal that the common data signal line is transmitted, the management data area
To be different from by the data of control signal and monitoring that the control that the data of data-signal are constituted monitors data area.The substation is
Using scheduled other substations as base station, and will be relative to the control data of the base station or the prison sent out from the base station
It is obtained as reference data from the transmission signal depending on data.Next, will be from change direction specified by the reference data
The variation of (beginning to ramp up or begin to decline direction) starts, until relative to output section corresponding to substation itself output data or
The input unit corresponding to the substation itself obtain change direction specified by input data until time, when giving as interval
Between and obtain, which is compared to scheduled critical value, and judges the difference with the critical value: in permissible range
Interior situation is normal, is Fisrt fault state and in the shape for being greater than the permissible range in the situation for being less than the permissible range
Condition is the second malfunction, and the signal that will be made of the data for representing the Fisrt fault state or second malfunction
It is overlapped to the management data area.
The same of the transmission synchronization method of signal transmission system is monitored as the control for being suitable for fault detection method of the present invention
One step process, for example, the method using transmission frequency caused by the timing generating mechanism with main website is more suitble to.At this point,
Under the control of the transmission frequency, a series of pulse type that main website is generated with the value of the corresponding control data transmitted from control unit
Signal is as control signal and while output this to the common data signal line, by each period of aforementioned frequencies from
The overlap data value of the monitoring signal into a series of pulse-like signal of each substation of several substations is captured, and will
It consigns to the control unit.On the other hand, several substations are respectively to show that the starting of the beginning of a series of pulse-like signal is believed
Number be used as starting point, count the pulse of a series of pulse-like signal, and when the value of counting is consistent with the address of substation itself, from
Data corresponding with substation itself are captured simultaneously in a series of pulse-like signal, will capture data corresponding with substation itself
The frequency identical pulse period, will monitoring signal overlap into a series of pulse-like signal, or, the value of counting and substation
When the address of itself is consistent, data corresponding with substation itself are captured from a series of pulse-like signal, or, monitoring is believed
Number overlap into a series of pulse-like signal.But synchronous method is not restricted, and suitable system design item also can be used
The method of part.
The management data area is served as reasons: the data from the main website are the management control data region mutually to overlap and come from
The data of the substation monitor that data area is constituted by the management mutually to overlap, and are overlapped in management monitoring data from the substation
The data setting in region be 0 other than data, and in the main website from the management monitoring data area capture data be 0 when,
Also the common data signal can be judged for broken string.
The substation can also will be indicative the signal that the interval time is constituted and to be made of other monitoring data
Signal interacted switch and overlapped to the management data area.
Secondary terminal station of the invention includes: synchronization mechanism, base station import and export variation testing agency, substation itself output
Enter to change testing agency, fault detection mechanism, base station reference address set mechanism, interval set mechanism, management monitoring data
Transmitting mechanism.The synchronization mechanism is that be connected to a main website be the common data signal line connecting, and obtains the biography with the main website
Defeated synchronization.The base station import and export changes testing agency, using scheduled other substations as base station, and will be relative to the benchmark
The control data stood or the monitoring data sent out from the base station are passed as reference data from the common data signal line
The transmission signal sent is obtained, and the variation of the predesignated change direction of the reference data is detected, and this is made
It is exported to start triggering.Itself import and export of the substation changes testing agency, for output section corresponding to substation itself
Output data, or the input unit corresponding to the substation itself by input data the variation of predesignated change direction examined
It surveys, and is exported this as end trigger.The fault detection mechanism will trigger until the end trigger since this
Time obtains as interval time, which is compared to scheduled critical value, and judges and the critical value
Difference: the situation in permissible range be it is normal, for the situation less than the permissible range be Fisrt fault state and for greater than
The situation of the permissible range is the second malfunction.The base station reference address set mechanism is that will specify the base of the base station
The change direction of quasi- station address, the type of the reference data and the reference data is set.The interval set mechanism, be by
It is set for the spacing value of the critical value.The management monitors data transmitter structure, will be indicative the Fisrt fault state or is somebody's turn to do
The signal that the data of second malfunction are constituted is overlapped to the transmission signal.
The continuous data of interval time and other monitoring data can also be interacted switching by the fault detection mechanism,
And it is exported to the management and monitors data transmitter structure.
In fault detection method of the invention, substation be using scheduled other substations as base station, and will be relative to
The control data of base station or the monitoring data sent out from base station are transmitted signal as reference data certainly and are obtained, will
The variation of the change direction specified by the reference data, until output data for output section corresponding to substation itself or coming
Time until change direction specified by the input data that the input unit corresponding to the substation itself obtains, when giving as interval
Between and obtain.This interval time keeps certain under input unit and the situation of output section regular event, with this movement coherent signal
Relationship and change.Then, it is compared to the first critical value and the second critical value by this interval time, and can be sentenced in substation
The malfunction of disconnected output section or input unit.And because substation is shown the data of malfunction with common data signal line
It transmits and overlaps to transmission signal, therefore in the control monitoring signal transmission system for carrying out transmission data by transmission synchronization method
In, the failure of output section and input unit can be detected in main website side.
In addition, the data for being overlapped in management monitor area from substation are set as the data other than 0, and in the main website
When the data captured from the management monitor area are 0, then it represents that the information exported from substation is in can not be by corporate data
Signal wire is transmitted to the state of main website.That is, can be judged as the broken string of common data signal line at this moment, it can will also be incorporated in defeated
The broken string for haveing the common data signal line of portion or input unit failure is detected.
Secondary terminal station of the invention, has a fault detection mechanism, which will start from according to predetermined
Base station reference data variation start triggering until according to the end trigger of the variation of the data of substation itself
Interval time is compared to the first critical value and the second critical value, and malfunction is judged, therefore event of the invention
Hindering detection method is relatively to be suitble to.
Detailed description of the invention
Fig. 1 system show fault detection method of the invention control monitoring signal transmission system embodiment in main website with
The schematic diagram of transmission mode between substation
Fig. 2 system display control monitors the system pie graph of the schematic configuration of signal transmission system.
The system pie graph at Fig. 3 owner station.
The system pie graph of Fig. 4 system input substation.
The data of Fig. 5 system base station import and export reference address set mechanism constitute figure.
The data of Fig. 6 system substation Self address set mechanism constitute figure.
The data of Fig. 7 system interval time set mechanism constitute figure.
The system pie graph of Fig. 8 system fault detection mechanism.
The system pie graph of Fig. 9 system output substation.
Figure 10 system shows the relevant time diagram of signal.
The time diagram of Figure 11 system transmission frequency signal.
The schematic diagram for the IDX address date table remembered in Figure 12 owner station.
Symbol description
1 control unit
2 main websites
4 import and export substations
5 controlled devices
6 output substations
7 input substations
8 output sections
9 input units
11 output units
12 input units
13 control parallel datas
14 management control parallel datas
15 monitoring parallel datas
16 first management monitoring parallel datas
17 second management monitoring parallel datas
18 management judgment mechanisms
21 output data portions
22 management data portions
23 timing generating units
24 main website output sections
25 main station input units
26 input data portions
29 memory mechanisms
31 OSC (oscillation circuit)
32 timing generation mechanisms
33 control data generation mechanisms
34 signal line drives
35 monitoring signal monitoring mechanisms
36 monitoring data acquisition mechanisms
37 input datas
39 management monitoring data
40 substations import and export portion
41 transmission receiving mechanisms
42 management control data acquisition mechanisms
43 address acquisition mechanisms
44 substation Self address set mechanisms
45 management monitoring data transmitter structures
46 monitoring data transmitter structures
Itself import and export of 47 substations changes testing agency
48 base station import and export reference address set mechanisms
49 base station import and exports change testing agency
50 fault detection mechanisms
51 ISTo acquisition mechanisms
52 IDXo acquisition mechanisms
Specify testing agency in 53 substations address
55 TM metrological services
56 symbolism mechanisms
57 data supplementing mechanisms
60 substations output section
62 gateway mechanisms
63 monitoring data
70 substation input units
71 interval set mechanisms
72 input mechanisms
80 output sections combination type substation
81 control data acquisition mechanisms
82 output mechanisms
90 input unit combination type substations
TR transistor
Specific embodiment
Illustrate to monitor signal transfer system using the control of fault detection method of the invention to Figure 11 refering to fig. 1 below
Embodiment.
As shown in Fig. 2, this control monitoring signal transmission system is by control unit 1 and to be connected to common data signal line
Single a main website 2 of DP, DN (being also known as transmission line below), several import and exports for being connected to the common data signal line DP, DN
Stand 4, output substation 6 and input substation 7 are constituted.It is illustrated for convenience in Fig. 2, each seed stations all only show one, but connect
In the substation type or quantity of common data signal line DP, DN, there is no restriction.
Import and export substation 4, output substation 6 and input substation 7 are to execute to indicate and operate in response to the output in control unit 1
The signal output of output section 8 is handled, and at the input signal for obtaining the input unit 9 of input information for transporting to control unit 1
Reason any one of or the two.In addition, output section 8 is to enumerate such as actuator (actuator), (step-by-step movement) motor, helical
Pipe (solenoid), solenoid valve, relay (relay), thyristor (thyristor) and lamps and lanterns (lamp) etc., input unit 9 can
Enumerate reed switch (reed switch), microswitch (micro switch), push switch, optoelectronic switch, various sensors
Deng.Import and export substation 4 is connected to the controlled device 5 being made of output section 8 and input unit 9, and output substation 6 is connected only to export
Portion 8, input substation 7 are connected only to input unit 9.In addition, output substation 6 can be also contained in wherein by output section 8, (output section merges
Type substation 80), it is to be contained in wherein (input unit combination type substation 90) that input substation 7, which can also be entered portion 9,.
Control unit 1 is such as program-controlled device (programmable controller), computer, comprising: output unit
11 and input unit 12, output unit 11 is single to send control parallel data 13 and control management parallel data 14, input
Member 12 is reception: the monitoring according to obtained from from the monitoring data that the monitoring signal of import and export substation 4 and input substation 7 is captured
Parallel data 15 and the first management monitoring according to obtained from from the management monitoring data that management monitoring signal is captured are arranged side by side
Data 16 and the second management monitoring parallel data 17.And these output units 11 and input unit 12 are connected to main website 2.Have again
Have management judgment mechanism 18, according to receive obtained data from input unit 12 and calculate the number transmitted by the output unit 11
According to.
As shown in figure 3, main website 2 has output data portion 21, management data portion 22, timing generating unit 23, main website output section
24, main website input unit 25 and input data portion 26.And main website 2 is connected to common data signal line DP, DN, will be equivalent to this
Invention transmission signal is that the control signal (hereinafter referred to as transmission frequency signal) of signal for one one-tenth consecutive shape pulse is sent to
While common data signal line DP, DN, by import and export substation 4, output substation 6 or input substation 7 (hereinafter, refer to this three
The case where person be referred to as substation 4,6,7) the monitoring signal sent out, from management monitor the monitoring parallel data that signal is captured
15, the first management monitoring parallel data 16 and the second management monitoring parallel data 17 are sent to the input unit of control unit 1
12。
Output data portion 21 is given by the control parallel data 13 of the output unit 11 from control unit 1 as serial data
Main website output section 24.
Managing data portion 22 has memory mechanism 29, which is that memory will be with the related letter in each substation 4,6,7
IDX address table made of breath set.According to the control parallel data 13 of the output unit 11 from control unit 1 and IDX address table,
Aftermentioned first management control data ISTo and the second management control data IDXo management control data constituted is created
Afterwards, main website output section 24 is given as serial data.It can be for picking out import and export substation 4, output although IDX address table has
It stands the data of 6 or input any of substation 7, in the present embodiment the preceding sector address to use substation 4,6,7.12nd figure is shown
Use an example of the IDX address table of preceding leading address.
As shown in figure 12, it is endowed the station of the address #ad0, the data value of monitoring signal is 1, the data of IDX address table
Continuously it is worth for #ad0 and #ad1.On the other hand, it is endowed the station of the address #ad1, because it monitors that the data value of signal is
2, therefore the pulse of #ad2 can be also assigned to and the same station #ad1.Therefore the data of IDX address table will will record to as #
In the #ad3 of a time numerical value of ad1.Furthermore in this present embodiment, even if monitoring that the data value of signal is 1 situation, i.e. #
Ad0 is identical as #ad1, can be considered as preceding sector address.In addition, by substation corresponding to each address in the IDX address table of the present embodiment
Classification data merged memory.As shown in Figure 10, " 1 " in substation 7, " 2 " in output substation 6, import and export are inputted
Stand " 3 " in 4 be endowed remembered as used in each address of correspondence respectively.
Timing generating unit 23 is made of concussion circuit (OSC) with timing generation mechanism 32, timing generation mechanism 32 with
The time sequence frequency of the system is generated based on OSC31 and gives main station output section 24.
Main station output section 24 is made of control data generation mechanism 33 and signal line drive (line driver) 34.
The data according to received by from output data portion 21 and management data portion 22 of data generation mechanism 33 are controlled, are generated with from timing
Time sequence frequency received by portion 23, by signal line drive 34 by the transmission frequency as the signal of one one-tenth consecutive shape pulse
Signal is sent to common data signal line DP, DN.
Transmission frequency signal connects the monitoring of the control after initial signal ST data area as shown in Figure 1, having, and connects
Management data area behind control monitoring data area.Control monitoring data area is by the control signal sent out from main website 2
OUTn data (n is integer), and from import and export substation 4 or output substation 7 transmitted by monitoring signal INn data (n be it is whole
Number) it is constituted.Also, the pulse for transmitting frequency signal is as shown in figure 11, and the later half of a cycle is (this implementation of high potential level
It is+24V in example), first half is low potential level (being+12V in the present embodiment), switchs to the pulse of the pulse first half of low potential level
During width interval just becomes output data, similarly the pulse width interval as the pulse first half of low potential level also becomes
During input data.Also, the pulse width interval of low potential level is the OUTn data for indicating control signal, and whether has weight
It is repeatedly the INn data for indicating monitoring signal to the electric current of low potential level.In this present embodiment, to transmit one of frequency signal
When period is t0, though the pulse width interval of low potential level is expanded to (3/4) t0 by (1/4) t0, as long as corresponding from control unit 1
The value of each data of the control parallel data 13 inputted, can not be limited by this width and be suitably determined.In addition, input data
Period with also can suitably be determined during output data, such as be set as pulse first half during input data as the present embodiment
(low potential level), during so that the pulse width interval of pulse later half (high potential level) is set as output data, opposite, also
Can by during output data with the present embodiment same settings be pulse first half (low potential level), make later half (the high potential position of pulse
It is quasi-) pulse width interval be set as also may be used during input data.Furthermore, it is understood that can also make pulse later half (high potential level)
It has both during output data and during input data.Transmit frequency signal a period it is later half be low potential level the case where also
Together.In addition in Fig. 1, upper section is during indicating output data, and lower section is during indicating input data.
The management control that the management data area of transmission frequency signal is overlapped for the supervisory control signals that send from main website 2
Data area, and the management sent from substation 4,6,7 monitor that the management that signal is overlapped monitors that data area is constituted.Management
The management control data that control data-signal is transmitted is by the first management control data ISTo and the second management control data
IDXo is constituted, identical as the control data OUTn of signal, shows as the pulse width interval of low potential level.Also, management prison
The management monitoring data that signal is transmitted are regarded as by the first management management monitoring data IDXi institute structure of monitoring data STi and second
At, it is identical as the monitoring data INn of signal, show as the presence or absence of the electric current for being overlapped in low potential level.Furthermore in the present embodiment
In, the first management control data ISTo and the second management control data IDXo are by as the specified number required substation 4,6,7
According to the designation date of type, or the address date (address data) for any of being used to specify substation 4,6,7.Another party
Face, the first management monitoring of monitoring data STi and second management data IDXi is by the number as the state for indicating the substation itself
According in addition, the data other than usually " 0 " that sends as management monitoring data, detailed content will be explained below.
Initial signal ST is current potential level identical with the high potential level of transmission frequency signal, and to believe than transmission frequency
Number the long signal of a cycle.
Main website input unit 25 is is made of monitoring signal monitoring mechanism 35 and monitoring data acquisition mechanism 36.Monitor signal
Mechanism for monitoring 35 is to detect that the monitoring signal transmitted by the substation 4,6,7 and management are supervised via common data signal line DP, DN
Depending on signal.Monitoring signal and management monitor the data value of signal to be overlapped in having for the electric current of low potential level as aforementioned
Without indicating, and in initial signal ST after sending, signal is monitored from import and export substation 4 or input substation 7 received in sequence first,
Then the management monitoring signal come one of substation from substation 4,6,7 is received.Monitor signal and management monitoring signal
Data be it is synchronous with the signal of timing generation mechanism 32, to monitor that data acquisition mechanism 36 is captured.And monitor signal
Data be sent to input data portion 26 as serial input data 37.Number is monitored from the management of management monitoring signal acquisition
Input data portion 26 is also sent to according to 39.
Input data portion 26 will be converted into side by side from the 25 received serial input data 37 of institute of main website input unit
(parallel) data are sent to the input unit 12 of control unit 1 as monitoring parallel data 15.It again will be from main website input unit 25
Received management monitoring data 39 are sent out after being separated into the first management monitoring parallel data 16 and the second management monitoring parallel data 17
It send to input unit 12.
Input substation 7 is equivalent to secondary terminal station of the invention, as shown in figure 4, having substation input unit 70, substation is defeated
Entering portion 70, there is transmission receiving mechanism 41, management control data acquisition mechanism 42, address acquisition mechanism 43, substation Self address to set
Determine mechanism 44, management monitoring data transmitter structure 45, monitoring data transmitter structure 46, substation itself import and export variation testing agency
47, base station import and export reference address set mechanism 48, base station import and export variation testing agency 49, fault detection mechanism 50,
It is spaced set mechanism 71 and input mechanism 72.In addition, being configured with the first burn out detection between substation input unit 70 and input unit 9
Mechanism 49.Furthermore the input substation 7 of the present embodiment has the microcomputer control unit (microcomputer as internal circuit
Control unit, MCU), this MCU as substation input unit 70 function and operate.Although processing in it is necessary calculating or
Memory is for convenience of explanation, aforementioned to be carried out using CPU, RAM and ROM possessed by this MCU (hereinafter referred to as MCU70)
The relationship constituted between each mechanism processing carried out and CPU, RAM and ROM of substation input unit 70 is omitted in schema.
Other embodiments that substation 6 is secondary terminal station of the invention are exported, there is the micro computer as internal circuit
Control unit (microcomputer control unit, MCU), this following MCU as substation output section 60 function and
Running.Next, identically as the MCU of substation output section 70, exporting substation 6 necessary calculating or memory in processing is to make
CPU, RAM and ROM possessed by this MCU and carry out.Give control parallel data signal to monitoring data transport mechanisms 47.
In import and export substation 4, it is connected with the output section 8 of tool corresponding relationship and the both sides of input unit 9.Also, import and export
It stands 4 also identical as output substation 6 and input substation 7, there is microcomputer control unit as internal circuit
(microcomputer control unit, MCU), this MCU as substation import and export portion 40 function and operate.Next,
And the MCU of substation output section 60 and identical as the MCU of substation output section 70, the necessary meter in processing of import and export substation 4
It calculates or memory is to be carried out using CPU, RAM and ROM possessed by this MCU.
The transmission receiving mechanism 41 of input substation 7 receives the transmission frequency signal transmitted by common data signal line DP, DN,
It is handed over to management control data acquisition mechanism 42, address acquisition mechanism 43 and management monitoring data transmitter structure 45.Management
The data that data acquisition mechanism 42 captures supervisory control signals from the management data area of transmission frequency signal are controlled, are handed over to
Fault detection mechanism 50.On the other hand, the initial signal ST for showing the beginning of transmission frequency signal is by address acquisition mechanism 43
Starting point and count pulse, the substation Self address data set by the count value and substation Self address set mechanism 44 (after
The substation Self address SADR stated) consistent time point, while giving monitoring data transport mechanisms 46, in count value and benchmark
It at import and export of standing reference address (signal specified by aftermentioned base station import and export reference address RADR) consistent time point, will specify
Signal (signal specified by aftermentioned import and export designated value RD), that is to say, that for control signal or the base station institute of base station
The monitoring signal of submitting gives base station import and export variation testing agency 49.
Monitor data transmitter structure 46, for from address acquisition mechanism 43 receiving control signal time point, according to from
Serial data that input mechanism 72 transmits and so that the base current of transistor TR is circulated (on) or is terminated (off).In base current
The case where for circulation (on), transistor TR are circulation (on), so that the current signal as monitoring signal is exported to corporate data
Signal wire DP, DN.In the present embodiment, as shown in figure 12, the case where data value for monitoring data is 1 is with the predetermined value that circulates
The situation of the electric current (such as 30mA) of Ith or more is showed.Therefore, in (the # of the address of such as signal shown in Figure 12 0
Ad0), the monitoring data of address 1 (#ad1), address No. 2 (#ad2) and address 3 (#ad3) show as respectively " 0 ", " 0 ", "
1","0".Furthermore from input mechanism 72 give monitoring data transmitter structure 46 data, according to the output from input unit 9
Depending on logical data.
Management monitoring data transmitter structure 45 is pulse to be counted by starting point of the initial signal ST of transmission frequency signal, and take
Obtain the time point of management data area.Then according to the data transmitted from fault detection mechanism 50, the base of transistor TR is exported
Electrode current exports the current signal as management monitoring signal to common data signal line DP, DN.
Substation Self address set mechanism 44 is as shown in figure 5, give substation Self address SADR to address acquisition mechanism 43
While with fault detection mechanism 50, by the end change direction of change direction shown by the input data from input unit 9
Indicated value ET gives substation itself import and export variation testing agency 47.
Base station import and export reference address set mechanism 48 as shown in fig. 6, by base station import and export reference address RADR and
While the import and export designated value RD of the specified classification for obtaining signal gives address acquisition mechanism 43, by the control for base station
Signal or since base station send out monitoring signal shown by change direction change direction indicated value ST give base station
Import and export changes testing agency 49.
Substation itself import and export change testing agency 47 by the data setting transmitted from input mechanism 72 be substation from
Body data, this substation data determine the end change direction indicated value ET that substation Self address set mechanism 44 is transmitted
The change direction of justice gives end trigger to fault detection mechanism 50 when the same direction changes.
Base station import and export changes testing agency 49 for the data setting from 43 derived signals of address acquisition mechanism
Reference data, reference data since base station import and export reference address set mechanism 48 transmitted change direction indicated value
Defined change direction will start triggering and give fault detection mechanism 50 when the same direction changes.
Set mechanism 71 is spaced as shown in fig. 7, the two of the critical value of breakdown judge will be become in fault detection mechanism 50
A spacing value TM1 and TM2 give fault detection mechanism 50.Furthermore remember in the spacing value TM1 and TM2 of interval set mechanism 71,
It can be modifiable object according to the downloading of 1 side of control unit.
Fault detection mechanism 50 by ISTo acquisition mechanism 51, IDXo acquisition mechanism 52, substation address as shown in figure 8, to be referred to
Determine testing agency 53, TM metrological service 55, symbolism mechanism 56 and data supplementing mechanism 57 to be constituted.
ISTo acquisition mechanism 51, for the data for managing the supervisory control signals that control data acquisition mechanism 42 transmits from reception
And captured the first management control data ISTo therein, so that the data captured is given substation address and specifies detection machine
Structure 53.In addition, IDXo acquisition mechanism 52, for the number for managing the supervisory control signals that control data acquisition mechanism 42 transmits from reception
It is captured according to and by the second management control data IDXo therein, the data captured is then made to give substation address specified detection
Mechanism 53.In addition, specifying in testing agency 53 in substation address has from the substation that substation Self address set mechanism 44 is delivered
Self address data.
Testing agency 53 is specified to give the data value of the second management control data IDXo and substation Self address in substation address
To compare, when data are consistent, scheduled data are delivered to symbolism mechanism 56 or number by corresponding first management control data ISTo
According to additional mechanism 57.That is, the first management control data ISTo indicates the data feelings of fault detection according to interval time
When shape, fault detection director data is delivered to symbolism mechanism 56 or data supplementing mechanism 57.
According to TM metrological service 55: triggering being delivered since base station import and export variation testing agency 49, from son
The end trigger that itself import and export of standing variation testing agency 47 is delivered and the critical value delivered from interval set mechanism 71
(the first spacing value TM1 or the second spacing value TM2) and carry out fault detection processing.That is, as shown in Figure 10, will show base
The time difference of quasi- data variation started when triggering input until To the end trigger Tn of display substation data variation, sentence
Break whether in the first spacing value TM1 or the second preset permissible ranges of spacing value TM2 institute.Next, its time difference exists
The case where (the first spacing value TM1 or more, the second spacing value TM2 or less), will then show the information of normal condition in permissible range,
And its time difference is that will then show Fisrt fault less than the case where the first spacing value TM1 the case where (in Figure 10 end trigger Ts)
The information of state, and will be indicative the case where being greater than the second spacing value TM2 (the case where end trigger is in T1 in Figure 10)
The information of two malfunctions is exported to symbolism mechanism 56.Alternatively, time difference data is delivered to data supplementing mechanism
57。
As aforementioned, start triggering to start change direction indicated value ST and end trigger to terminate change direction indicated value
Change direction defined in ET is delivered to fault detection mechanism 50 when same direction data are changed.Therefore, fault detection
Mechanism 50 can be by the setting for starting change direction indicated value ST and end change direction indicated value ET, even if obtaining base value
According to or substation data any variation the case where can all correspond to.Furthermore Tu10Zhong, respectively by (a) reference data and substation
The both sides of data from 0 be changed to 1 the case where, (b) reference data from " 0 " be changed to " 1 " the case where, substation data
The case where the case where being changed to " 0 " from " 1 ", (c) reference data are changed to " 0 " from " 1 ", substation data be changed to from " 0 " "
1 " the case where (d) reference data and substation data both sides from " 1 " be changed to " 0 " the case where with display.
Symbolism mechanism 56 specifies the first management control data ISTo that is delivered of testing agency 53 according to from substation address,
By from TM metrological service 55 through exporting normal condition, information is transformed to shown by Fisrt fault state and the second malfunction
Scheduled symbol data is delivered to management monitoring data transmitter structure 46.
Data supplementing mechanism 57 is according to the first management control data for specifying testing agency 53 to be delivered from substation address
ISTo is supervised using the time difference data delivered from TM metrological service 55, the first management of ining succession monitoring data STi as the second management
Management monitoring data transmitter structure 46 is delivered to depending on data IDXi.
At this point, being delivered to the first management monitoring data STi of management monitoring data transmitter structure 46, that is to say, that indicate
The symbol data of normal condition, Fisrt fault state and the second malfunction is using the value other than " 0 " out.Therefore, as pipe
It is the data other than " 0 " transmitted by reason monitoring data.That is, monitoring data in management to input 7 institute of substation certainly when " 0 "
The information of output is in the state for not being sent to main website by common data signal line DP, DN.Therefore, it can be judged as common at this time
The broken string of data signal line DP, DN.
The MCU of substation output section 60 will be located at the monitoring data transmitter structure 46 of the MCU of substation output section 70 as control
Data acquisition mechanism 81 regard input mechanism 72 as output mechanism 82.Data acquisition mechanism 81 is controlled from address acquisition mechanism 43
The control data-signal delivered is captured data value, is delivered to output mechanism 82 as serial data.Furthermore from
The data value that control data-signal is captured also is delivered to substation itself import and export variation testing agency as substation data
47.It is (parallel) data output arranged side by side that output mechanism 82, which will control the converting serial data that data acquisition mechanism 81 is delivered,
To output section 8, and output section 8 is made to execute scheduled movement.In addition, the MCU of substation output section 60 and it is other constitute because with substation
The composition of the MCU of input unit 70 is identical, and is illustrated to be omitted.
Next, being said for the sequence of fault detection method in the control monitoring signal transmission system of above-mentioned composition
It is bright.
Control unit 1 is in the timing suitably set or arbitrarily inputs by user instruction, will instruction detection output section 8 or
The management control data 14 of the fault detection of input unit 9 is exported to main website 2.The main website 2 for receiving this control parallel data will
The the first management control data ISTo for seeking the information for the burn out detection for detecting whether input signal cable and specified memory are in IDX
Second management control data IDXo of one of them of address date table data group is exported.Furthermore in the management number of main website 2
According in portion 22, IDX address date table as shown in figure 12 is completed, each by initial signal ST and followed
The transmission cycle that is constituted of control monitoring data area, first leading address is sequentially divided using the second management control data IDXo
With being assigned to all substations 4,6,7.
The data of the IDX address date table carried out by the second management control data IDXo are appointed as according to tables of data
Number order and carry out.Also that is, the index address data (index address data) (#ad0) of table number 1 first are selected
The the second management control data IDXo selected is exported.Then it is sequentially changed to classify with substation in each transmission cycle (cycle)
Each table that data are 1 numbers corresponding front address date.But it is not limited to utilize the second management control data
IDXo specifies the sequences of the data of IDX address date table, the priority picks that also can for example determine according to function.
Substation 7 is when the address of the second management control data IDXo Yu the substation itself is consistent, from fault detection mechanism
50 are exported, will be as representing according to being presented as in Fisrt fault state or the second malfunction or normal situation
The management monitoring signal that abnormal or normal data are constituted overlaps into management monitoring data area.Main website 2 receives this data,
Self management monitoring signal acquisition management monitors data and is delivered to management department 1.
Control unit 1 is to carry out scheduled processing according to the content of the first management monitoring parallel data 16.Specifically, such as
First management monitoring parallel data 16 is being presented as then carrying out abnormal expression extremely.In addition, the situation that management monitoring data are 0
When, it is judged as the broken string of common data signal line DP, DN, is indicated its purport.
In the control unit 1 Jing Guo sequence described above, can grasp the input unit 9 corresponding to substation 7 connection it is abnormal with it is interior
There is state without exception in portion circuit.
Furthermore it is the first spacing value TM1 or the second spacing value TM2 of critical value, can be suitably changed from control unit side.
In this case, the data that will be indicative changed the first spacing value TM1 value and the second spacing value TM2, with after change
One spacing value TM1 value and the data of the second spacing value TM2 overlap to management control data region, and in input substation 7 or output
8 side of substation is captured.
The data that the continuous data of interval time also can be different with monitoring in this control monitoring signal transmission system.This shape
Under condition, Zha Kong mechanism 62 is set in Fig. 8, for this Zha Kong mechanism 62 in the data 63 of the object of Input Monitor Connector shown in dotted line
Meanwhile specifying testing agency 53 by instruction number needed for the continuous data of switching interval time and monitoring data 63 from substation address
According to with output.Next, by as the input monitor command data of the first management control data ISTo from main website 2 by transmission
To corresponding import and export substation 4, output substation 6, input substation 7, control unit 1 can grasp TM metering by Zha Kong mechanism 62
The continuous data of the interval time of mechanism 55 is switched and is exported as management monitoring data with monitoring data 63.
Claims (5)
1. a kind of fault detection method is to apply to control monitoring signal transmission system, wherein main website and several substations are with altogether
It connects with data signal line, and carries out data transmission by transmission synchronization method, which is characterized in that the fault detection method are as follows:
A management data area is set in the transmission signal that the common data signal line is transmitted, which is phase
Data area is monitored different from the control being made of the data of the data of control signal and monitoring signal；
One of substation is while stored the address of substation itself, by scheduled one in scheduled other substations
Other substations are stored the address of the base station as base station, are consistent in the address of the substation and the substation itself
Time point, by the control data sent out for substation itself from the transmission signal obtain, alternatively, to the transmission signal send out
It monitors data, is consistent time point in the substation and the address of the base station, is sent out by control data or from the base station
Monitoring data obtained as reference data from the transmission signal；
By the variation of the change direction specified by the reference data, until the output for output section corresponding to substation itself
Time until the variation of change direction specified by the input data that data or the input unit corresponding to the substation itself obtain,
Give obtaining as interval time, which is compared to scheduled critical value, and judges and the critical value
Difference: the situation in permissible range be it is normal, be Fisrt fault state and be greater than in the situation for being less than the permissible range
The situation of the permissible range is the second malfunction, and by the number by representing the Fisrt fault state or second malfunction
It is overlapped according to the signal constituted to the management data area.
2. fault detection method as described in claim 1, which is characterized in that the management data area is by from the main website
The management control data region that data are overlapped and the management that the data from the substation are overlapped monitor data area institute structure
At, it is the data other than 0 by the data setting for being overlapped in management monitoring data area from the substation, and in the main website
When the data captured from management monitoring data area are 0, judge the common data signal line for broken string.
3. fault detection method as claimed in claim 1 or 2, which is characterized in that the substation will be indicative the interval time
The signal and interacted switching by the signal that other monitoring data are constituted and overlapped to the pipe that data are constituted
Manage data area.
4. a kind of secondary terminal station, which is characterized in that it includes:
Synchronization mechanism, be connected to be with main website connection common data signal line, it is synchronous to obtain transmission with the main website；
Base station import and export change testing agency, will scheduled other substations be used as base station, by the base station with specify
Base station address consistent time point, and by the control data for the base station or the monitoring data sent out from the base station
It is obtained as reference data from the transmission signal that the common data signal line is transmitted, detects the reference data
Preassign change direction variation, and by conduct start trigger exported；
Substation itself import and export changes testing agency, output data for output section corresponding to substation itself or comes from substation
The input data of input unit corresponding to itself the variation of predesignated change direction detected, and by conduct terminate touching
It issues to export；
Fault detection mechanism obtains the time triggered until the end trigger since this as interval time, by this
Interval time is compared to scheduled critical value, and is judged and the difference of the critical value: situation in permissible range be normally,
It is Fisrt fault state for the situation less than the permissible range and is the second failure shape for the situation greater than the permissible range
State；
Base station reference address set mechanism, be by specify the benchmark station address of the base station, the reference data type and
The change direction of the reference data is set；
Substation Self address set mechanism is the change by the address of the substation itself and the output data or the input data
Change direction to be set；
It is spaced set mechanism, is to be set the spacing value for becoming the critical value；And
Management monitoring data transmitter structure will be indicative what the data of the Fisrt fault state or second malfunction were constituted
Signal is overlapped to the transmission signal；
Wherein, which further includes control data acquisition mechanism or monitoring data transmitter structure, the control data acquisition
Mechanism is to pick the control data issued to substation from the transmission signal at the time point of the position consistency with the substation itself
It takes, which is to issue and supervise to the transmission signal at the time point in the position consistency with the substation itself
Depending on data.
5. secondary terminal station as claimed in claim 4, which is characterized in that the fault detection mechanism system is by the metering of interval time
Data and other monitoring data are interacted switching, and are exported to the management and monitor data transmitter structure.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2012/054182 WO2013124974A1 (en) | 2012-02-22 | 2012-02-22 | Fault detection method and slave station terminal used for said method |
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| CN104126311B true CN104126311B (en) | 2019-01-01 |
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| JPH1082658A (en) * | 1996-09-06 | 1998-03-31 | Furukawa Electric Co Ltd:The | Judgment apparatus for level of input signal |
| CN1199953A (en) * | 1997-05-09 | 1998-11-25 | 施耐德电器公司 | Process and control device for motor output suitable for being controlled through communication bus |
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| CN1811631A (en) * | 2001-05-21 | 2006-08-02 | 欧姆龙株式会社 | Slave unit, node unit, controllers and network system |
| CN102147969A (en) * | 2009-11-25 | 2011-08-10 | 株式会社恩尼怀尔 | Remote wiring inspection system and connector thereof |
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| JP3702605B2 (en) * | 1997-09-25 | 2005-10-05 | 富士電機機器制御株式会社 | Transmission system having trigger function and time interval measuring method of input / output signal thereof |
| JP4445661B2 (en) * | 2000-11-09 | 2010-04-07 | 株式会社 エニイワイヤ | Control and monitoring signal transmission system |
| JP2006190295A (en) * | 2001-05-21 | 2006-07-20 | Omron Corp | Network configurator, network power supply monitor system and network power supply monitor method |
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2012
- 2012-02-22 JP JP2012533179A patent/JP5132844B1/en active Active
- 2012-02-22 CN CN201280070276.6A patent/CN104126311B/en active Active
- 2012-02-22 WO PCT/JP2012/054182 patent/WO2013124974A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1082658A (en) * | 1996-09-06 | 1998-03-31 | Furukawa Electric Co Ltd:The | Judgment apparatus for level of input signal |
| CN1199953A (en) * | 1997-05-09 | 1998-11-25 | 施耐德电器公司 | Process and control device for motor output suitable for being controlled through communication bus |
| CN1811631A (en) * | 2001-05-21 | 2006-08-02 | 欧姆龙株式会社 | Slave unit, node unit, controllers and network system |
| CN1574848A (en) * | 2003-06-03 | 2005-02-02 | 弗尼克斯-康泰克有限及两合公司 | Ensuring maximum reaction times in complex or distributed safe and/or nonsafe systems |
| CN102147969A (en) * | 2009-11-25 | 2011-08-10 | 株式会社恩尼怀尔 | Remote wiring inspection system and connector thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5132844B1 (en) | 2013-01-30 |
| JPWO2013124974A1 (en) | 2015-05-21 |
| WO2013124974A1 (en) | 2013-08-29 |
| CN104126311A (en) | 2014-10-29 |
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